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Diffstat (limited to 'contracts/core')
117 files changed, 23797 insertions, 0 deletions
diff --git a/contracts/core/.solhint.json b/contracts/core/.solhint.json new file mode 100644 index 000000000..076afe9f3 --- /dev/null +++ b/contracts/core/.solhint.json @@ -0,0 +1,20 @@ +{ + "extends": "default", + "rules": { + "avoid-low-level-calls": false, + "avoid-tx-origin": "warn", + "bracket-align": false, + "code-complexity": false, + "const-name-snakecase": "error", + "expression-indent": "error", + "function-max-lines": false, + "func-order": "error", + "indent": ["error", 4], + "max-line-length": ["warn", 160], + "no-inline-assembly": false, + "quotes": ["error", "double"], + "separate-by-one-line-in-contract": "error", + "space-after-comma": "error", + "statement-indent": "error" + } +} diff --git a/contracts/core/.solhintignore b/contracts/core/.solhintignore new file mode 100644 index 000000000..1e33ec53b --- /dev/null +++ b/contracts/core/.solhintignore @@ -0,0 +1,3 @@ +contracts/tokens/ZRXToken/ERC20Token_v1.sol +contracts/tokens/ZRXToken/Token_v1.sol +contracts/tokens/ZRXToken/UnlimitedAllowanceToken_v1.sol diff --git a/contracts/core/CHANGELOG.json b/contracts/core/CHANGELOG.json new file mode 100644 index 000000000..7dfa06990 --- /dev/null +++ b/contracts/core/CHANGELOG.json @@ -0,0 +1,135 @@ +[ + { + "name": "MultiAssetProxy", + "version": "1.0.0", + "changes": [ + { + "note": "Add MultiAssetProxy implementation", + "pr": 1224 + } + ] + }, + { + "name": "OrderValidator", + "version": "1.0.1", + "changes": [ + { + "note": "remove `getApproved` check from ERC721 approval query", + "pr": 1149 + } + ] + }, + { + "name": "Forwarder", + "version": "1.1.0", + "changes": [ + { + "note": "Round up when calculating remaining amounts in marketBuy functions", + "pr": 1162, + "networks": { + "1": "0x5468a1dc173652ee28d249c271fa9933144746b1", + "3": "0x2240dab907db71e64d3e0dba4800c83b5c502d4e", + "42": "0x17992e4ffb22730138e4b62aaa6367fa9d3699a6" + } + } + ] + }, + { + "name": "Forwarder", + "version": "1.0.0", + "changes": [ + { + "note": "protocol v2 deploy", + "networks": { + "1": "0x7afc2d5107af94c462a194d2c21b5bdd238709d6", + "3": "0x3983e204b12b3c02fb0638caf2cd406a62e0ead3", + "42": "0xd85e2fa7e7e252b27b01bf0d65c946959d2f45b8" + } + } + ] + }, + { + "name": "OrderValidator", + "version": "1.0.0", + "changes": [ + { + "note": "protocol v2 deploy", + "networks": { + "1": "0x9463e518dea6810309563c81d5266c1b1d149138", + "3": "0x90431a90516ab49af23a0530e04e8c7836e7122f", + "42": "0xb389da3d204b412df2f75c6afb3d0a7ce0bc283d" + } + } + ] + }, + { + "name": "Exchange", + "version": "2.0.0", + "changes": [ + { + "note": "protocol v2 deploy", + "networks": { + "1": "0x4f833a24e1f95d70f028921e27040ca56e09ab0b", + "3": "0x4530c0483a1633c7a1c97d2c53721caff2caaaaf", + "42": "0x35dd2932454449b14cee11a94d3674a936d5d7b2" + } + } + ] + }, + { + "name": "ERC20Proxy", + "version": "1.0.0", + "changes": [ + { + "note": "protocol v2 deploy", + "networks": { + "1": "0x2240dab907db71e64d3e0dba4800c83b5c502d4e", + "3": "0xb1408f4c245a23c31b98d2c626777d4c0d766caa", + "42": "0xf1ec01d6236d3cd881a0bf0130ea25fe4234003e" + } + } + ] + }, + { + "name": "ERC721Proxy", + "version": "1.0.0", + "changes": [ + { + "note": "protocol v2 deploy", + "networks": { + "1": "0x208e41fb445f1bb1b6780d58356e81405f3e6127", + "3": "0xe654aac058bfbf9f83fcaee7793311dd82f6ddb4", + "42": "0x2a9127c745688a165106c11cd4d647d2220af821" + } + } + ] + }, + { + "name": "AssetProxyOwner", + "version": "1.0.0", + "changes": [ + { + "note": "protocol v2 deploy", + "networks": { + "1": "0x17992e4ffb22730138e4b62aaa6367fa9d3699a6", + "3": "0xf5fa5b5fed2727a0e44ac67f6772e97977aa358b", + "42": "0x2c824d2882baa668e0d5202b1e7f2922278703f8" + } + } + ] + }, + { + "name": "ZRXToken", + "version": "1.0.0", + "changes": [ + { + "note": "protocol v1 deploy", + "networks": { + "1": "0xe41d2489571d322189246dafa5ebde1f4699f498", + "3": "0xff67881f8d12f372d91baae9752eb3631ff0ed00", + "42": "0x2002d3812f58e35f0ea1ffbf80a75a38c32175fa" + } + } + ] + } +] diff --git a/contracts/core/README.md b/contracts/core/README.md new file mode 100644 index 000000000..0004925c1 --- /dev/null +++ b/contracts/core/README.md @@ -0,0 +1,82 @@ +## Contracts + +Smart contracts that implement the 0x protocol. Addresses of the deployed contracts can be found in the 0x [wiki](https://0xproject.com/wiki#Deployed-Addresses) or the [CHANGELOG](./CHANGELOG.json) of this package. + +## Usage + +Contracts that make up and interact with version 2.0.0 of the protocol can be found in the [contracts](./contracts) directory. The contents of this directory are broken down into the following subdirectories: + +* [protocol](./contracts/protocol) + * This directory contains the contracts that make up version 2.0.0. A full specification can be found [here](https://github.com/0xProject/0x-protocol-specification/blob/master/v2/v2-specification.md). +* [extensions](./contracts/extensions) + * This directory contains contracts that interact with the 2.0.0 contracts and will be used in production, such as the [Forwarder](https://github.com/0xProject/0x-protocol-specification/blob/master/v2/forwarder-specification.md) contract. +* [examples](./contracts/examples) + * This directory contains example implementations of contracts that interact with the protocol but are _not_ intended for use in production. Examples include [filter](https://github.com/0xProject/0x-protocol-specification/blob/master/v2/v2-specification.md#filter-contracts) contracts, a [Wallet](https://github.com/0xProject/0x-protocol-specification/blob/master/v2/v2-specification.md#wallet) contract, and a [Validator](https://github.com/0xProject/0x-protocol-specification/blob/master/v2/v2-specification.md#validator) contract, among others. +* [tokens](./contracts/tokens) + * This directory contains implementations of different tokens and token standards, including [wETH](https://weth.io/), ZRX, [ERC20](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md), and [ERC721](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md). +* [utils](./contracts/utils) + * This directory contains libraries and utils that are shared across all of the other directories. +* [test](./contracts/test) + * This directory contains mocks and other contracts that are used solely for testing contracts within the other directories. + +## Bug bounty + +A bug bounty for the 2.0.0 contracts is ongoing! Instructions can be found [here](https://0xproject.com/wiki#Bug-Bounty). + +## Contributing + +We strongly recommend that the community help us make improvements and determine the future direction of the protocol. To report bugs within this package, please create an issue in this repository. + +For proposals regarding the 0x protocol's smart contract architecture, message format, or additional functionality, go to the [0x Improvement Proposals (ZEIPs)](https://github.com/0xProject/ZEIPs) repository and follow the contribution guidelines provided therein. + +Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started. + +### Install Dependencies + +If you don't have yarn workspaces enabled (Yarn < v1.0) - enable them: + +```bash +yarn config set workspaces-experimental true +``` + +Then install dependencies + +```bash +yarn install +``` + +### Build + +To build this package and all other monorepo packages that it depends on, run the following from the monorepo root directory: + +```bash +PKG=@0x/contracts-core yarn build +``` + +Or continuously rebuild on change: + +```bash +PKG=@0x/contracts-core yarn watch +``` + +### Clean + +```bash +yarn clean +``` + +### Lint + +```bash +yarn lint +``` + +### Run Tests + +```bash +yarn test +``` + +#### Testing options + +Contracts testing options like coverage, profiling, revert traces or backing node choosing - are described [here](../TESTING.md). diff --git a/contracts/core/compiler.json b/contracts/core/compiler.json new file mode 100644 index 000000000..7e527130a --- /dev/null +++ b/contracts/core/compiler.json @@ -0,0 +1,56 @@ +{ + "artifactsDir": "./generated-artifacts", + "contractsDir": "./contracts", + "compilerSettings": { + "optimizer": { + "enabled": true, + "runs": 1000000 + }, + "outputSelection": { + "*": { + "*": [ + "abi", + "evm.bytecode.object", + "evm.bytecode.sourceMap", + "evm.deployedBytecode.object", + "evm.deployedBytecode.sourceMap" + ] + } + } + }, + "contracts": [ + "AssetProxyOwner", + "DummyERC20Token", + "DummyERC721Receiver", + "DummyERC721Token", + "DummyMultipleReturnERC20Token", + "DummyNoReturnERC20Token", + "DutchAuction", + "ERC20Proxy", + "ERC20Token", + "ERC721Token", + "ERC721Proxy", + "Exchange", + "ExchangeWrapper", + "Forwarder", + "IAssetData", + "IAssetProxy", + "InvalidERC721Receiver", + "IValidator", + "IWallet", + "MixinAuthorizable", + "MultiAssetProxy", + "OrderValidator", + "ReentrantERC20Token", + "TestAssetProxyOwner", + "TestAssetProxyDispatcher", + "TestExchangeInternals", + "TestSignatureValidator", + "TestStaticCallReceiver", + "Validator", + "Wallet", + "WETH9", + "Whitelist", + "ZRXToken" + ] +} diff --git a/contracts/core/contracts/examples/ExchangeWrapper/ExchangeWrapper.sol b/contracts/core/contracts/examples/ExchangeWrapper/ExchangeWrapper.sol new file mode 100644 index 000000000..ca5a64a26 --- /dev/null +++ b/contracts/core/contracts/examples/ExchangeWrapper/ExchangeWrapper.sol @@ -0,0 +1,100 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "../../protocol/Exchange/interfaces/IExchange.sol"; +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; + + +contract ExchangeWrapper { + + // Exchange contract. + // solhint-disable-next-line var-name-mixedcase + IExchange internal EXCHANGE; + + constructor (address _exchange) + public + { + EXCHANGE = IExchange(_exchange); + } + + /// @dev Cancels all orders created by sender with a salt less than or equal to the targetOrderEpoch + /// and senderAddress equal to this contract. + /// @param targetOrderEpoch Orders created with a salt less or equal to this value will be cancelled. + /// @param salt Arbitrary value to gaurantee uniqueness of 0x transaction hash. + /// @param makerSignature Proof that maker wishes to call this function with given params. + function cancelOrdersUpTo( + uint256 targetOrderEpoch, + uint256 salt, + bytes makerSignature + ) + external + { + address makerAddress = msg.sender; + + // Encode arguments into byte array. + bytes memory data = abi.encodeWithSelector( + EXCHANGE.cancelOrdersUpTo.selector, + targetOrderEpoch + ); + + // Call `cancelOrdersUpTo` via `executeTransaction`. + EXCHANGE.executeTransaction( + salt, + makerAddress, + data, + makerSignature + ); + } + + /// @dev Fills an order using `msg.sender` as the taker. + /// @param order Order struct containing order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param salt Arbitrary value to gaurantee uniqueness of 0x transaction hash. + /// @param orderSignature Proof that order has been created by maker. + /// @param takerSignature Proof that taker wishes to call this function with given params. + function fillOrder( + LibOrder.Order memory order, + uint256 takerAssetFillAmount, + uint256 salt, + bytes memory orderSignature, + bytes memory takerSignature + ) + public + { + address takerAddress = msg.sender; + + // Encode arguments into byte array. + bytes memory data = abi.encodeWithSelector( + EXCHANGE.fillOrder.selector, + order, + takerAssetFillAmount, + orderSignature + ); + + // Call `fillOrder` via `executeTransaction`. + EXCHANGE.executeTransaction( + salt, + takerAddress, + data, + takerSignature + ); + } +} diff --git a/contracts/core/contracts/examples/Validator/Validator.sol b/contracts/core/contracts/examples/Validator/Validator.sol new file mode 100644 index 000000000..72ed528ba --- /dev/null +++ b/contracts/core/contracts/examples/Validator/Validator.sol @@ -0,0 +1,56 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "../../protocol/Exchange/interfaces/IValidator.sol"; + + +contract Validator is + IValidator +{ + + // The single valid signer for this wallet. + // solhint-disable-next-line var-name-mixedcase + address internal VALID_SIGNER; + + /// @dev constructs a new `Validator` with a single valid signer. + /// @param validSigner The sole, valid signer. + constructor (address validSigner) public { + VALID_SIGNER = validSigner; + } + + /// @dev Verifies that a signature is valid. `signer` must match `VALID_SIGNER`. + /// @param hash Message hash that is signed. + /// @param signerAddress Address that should have signed the given hash. + /// @param signature Proof of signing. + /// @return Validity of signature. + // solhint-disable no-unused-vars + function isValidSignature( + bytes32 hash, + address signerAddress, + bytes signature + ) + external + view + returns (bool isValid) + { + return (signerAddress == VALID_SIGNER); + } + // solhint-enable no-unused-vars +} diff --git a/contracts/core/contracts/examples/Wallet/Wallet.sol b/contracts/core/contracts/examples/Wallet/Wallet.sol new file mode 100644 index 000000000..3738be841 --- /dev/null +++ b/contracts/core/contracts/examples/Wallet/Wallet.sol @@ -0,0 +1,65 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "../../protocol/Exchange/interfaces/IWallet.sol"; +import "@0x/contracts-utils/contracts/utils/LibBytes/LibBytes.sol"; + + +contract Wallet is + IWallet +{ + using LibBytes for bytes; + + // The owner of this wallet. + // solhint-disable-next-line var-name-mixedcase + address internal WALLET_OWNER; + + /// @dev constructs a new `Wallet` with a single owner. + /// @param walletOwner The owner of this wallet. + constructor (address walletOwner) public { + WALLET_OWNER = walletOwner; + } + + /// @dev Validates an EIP712 signature. + /// The signer must match the owner of this wallet. + /// @param hash Message hash that is signed. + /// @param eip712Signature Proof of signing. + /// @return Validity of signature. + function isValidSignature( + bytes32 hash, + bytes eip712Signature + ) + external + view + returns (bool isValid) + { + require( + eip712Signature.length == 65, + "LENGTH_65_REQUIRED" + ); + + uint8 v = uint8(eip712Signature[0]); + bytes32 r = eip712Signature.readBytes32(1); + bytes32 s = eip712Signature.readBytes32(33); + address recoveredAddress = ecrecover(hash, v, r, s); + isValid = WALLET_OWNER == recoveredAddress; + return isValid; + } +} diff --git a/contracts/core/contracts/examples/Whitelist/Whitelist.sol b/contracts/core/contracts/examples/Whitelist/Whitelist.sol new file mode 100644 index 000000000..cfcddddd3 --- /dev/null +++ b/contracts/core/contracts/examples/Whitelist/Whitelist.sol @@ -0,0 +1,136 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "../../protocol/Exchange/interfaces/IExchange.sol"; +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; +import "@0x/contracts-utils/contracts/utils/Ownable/Ownable.sol"; + + +contract Whitelist is + Ownable +{ + + // Mapping of address => whitelist status. + mapping (address => bool) public isWhitelisted; + + // Exchange contract. + // solhint-disable var-name-mixedcase + IExchange internal EXCHANGE; + bytes internal TX_ORIGIN_SIGNATURE; + // solhint-enable var-name-mixedcase + + byte constant internal VALIDATOR_SIGNATURE_BYTE = "\x05"; + + constructor (address _exchange) + public + { + EXCHANGE = IExchange(_exchange); + TX_ORIGIN_SIGNATURE = abi.encodePacked(address(this), VALIDATOR_SIGNATURE_BYTE); + } + + /// @dev Adds or removes an address from the whitelist. + /// @param target Address to add or remove from whitelist. + /// @param isApproved Whitelist status to assign to address. + function updateWhitelistStatus( + address target, + bool isApproved + ) + external + onlyOwner + { + isWhitelisted[target] = isApproved; + } + + /// @dev Verifies signer is same as signer of current Ethereum transaction. + /// NOTE: This function can currently be used to validate signatures coming from outside of this contract. + /// Extra safety checks can be added for a production contract. + /// @param signerAddress Address that should have signed the given hash. + /// @param signature Proof of signing. + /// @return Validity of order signature. + // solhint-disable no-unused-vars + function isValidSignature( + bytes32 hash, + address signerAddress, + bytes signature + ) + external + view + returns (bool isValid) + { + // solhint-disable-next-line avoid-tx-origin + return signerAddress == tx.origin; + } + // solhint-enable no-unused-vars + + /// @dev Fills an order using `msg.sender` as the taker. + /// The transaction will revert if both the maker and taker are not whitelisted. + /// Orders should specify this contract as the `senderAddress` in order to gaurantee + /// that both maker and taker have been whitelisted. + /// @param order Order struct containing order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param salt Arbitrary value to gaurantee uniqueness of 0x transaction hash. + /// @param orderSignature Proof that order has been created by maker. + function fillOrderIfWhitelisted( + LibOrder.Order memory order, + uint256 takerAssetFillAmount, + uint256 salt, + bytes memory orderSignature + ) + public + { + address takerAddress = msg.sender; + + // This contract must be the entry point for the transaction. + require( + // solhint-disable-next-line avoid-tx-origin + takerAddress == tx.origin, + "INVALID_SENDER" + ); + + // Check if maker is on the whitelist. + require( + isWhitelisted[order.makerAddress], + "MAKER_NOT_WHITELISTED" + ); + + // Check if taker is on the whitelist. + require( + isWhitelisted[takerAddress], + "TAKER_NOT_WHITELISTED" + ); + + // Encode arguments into byte array. + bytes memory data = abi.encodeWithSelector( + EXCHANGE.fillOrder.selector, + order, + takerAssetFillAmount, + orderSignature + ); + + // Call `fillOrder` via `executeTransaction`. + EXCHANGE.executeTransaction( + salt, + takerAddress, + data, + TX_ORIGIN_SIGNATURE + ); + } +} diff --git a/contracts/core/contracts/extensions/DutchAuction/DutchAuction.sol b/contracts/core/contracts/extensions/DutchAuction/DutchAuction.sol new file mode 100644 index 000000000..a40991ae7 --- /dev/null +++ b/contracts/core/contracts/extensions/DutchAuction/DutchAuction.sol @@ -0,0 +1,205 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "../../protocol/Exchange/interfaces/IExchange.sol"; +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; +import "../../tokens/ERC20Token/IERC20Token.sol"; +import "@0x/contracts-utils/contracts/utils/LibBytes/LibBytes.sol"; +import "@0x/contracts-utils/contracts/utils/SafeMath/SafeMath.sol"; + + +contract DutchAuction is + SafeMath +{ + using LibBytes for bytes; + + // solhint-disable var-name-mixedcase + IExchange internal EXCHANGE; + + struct AuctionDetails { + uint256 beginTimeSeconds; // Auction begin unix timestamp: sellOrder.makerAssetData + uint256 endTimeSeconds; // Auction end unix timestamp: sellOrder.expiryTimeSeconds + uint256 beginAmount; // Auction begin amount: sellOrder.makerAssetData + uint256 endAmount; // Auction end amount: sellOrder.takerAssetAmount + uint256 currentAmount; // Calculated amount given block.timestamp + uint256 currentTimeSeconds; // block.timestamp + } + + constructor (address _exchange) + public + { + EXCHANGE = IExchange(_exchange); + } + + /// @dev Matches the buy and sell orders at an amount given the following: the current block time, the auction + /// start time and the auction begin amount. The sell order is a an order at the lowest amount + /// at the end of the auction. Excess from the match is transferred to the seller. + /// Over time the price moves from beginAmount to endAmount given the current block.timestamp. + /// sellOrder.expiryTimeSeconds is the end time of the auction. + /// sellOrder.takerAssetAmount is the end amount of the auction (lowest possible amount). + /// sellOrder.makerAssetData is the ABI encoded Asset Proxy data with the following data appended + /// buyOrder.makerAssetData is the buyers bid on the auction, must meet the amount for the current block timestamp + /// (uint256 beginTimeSeconds, uint256 beginAmount). + /// This function reverts in the following scenarios: + /// * Auction has not started (auctionDetails.currentTimeSeconds < auctionDetails.beginTimeSeconds) + /// * Auction has expired (auctionDetails.endTimeSeconds < auctionDetails.currentTimeSeconds) + /// * Amount is invalid: Buy order amount is too low (buyOrder.makerAssetAmount < auctionDetails.currentAmount) + /// * Amount is invalid: Invalid begin amount (auctionDetails.beginAmount > auctionDetails.endAmount) + /// * Any failure in the 0x Match Orders + /// @param buyOrder The Buyer's order. This order is for the current expected price of the auction. + /// @param sellOrder The Seller's order. This order is for the lowest amount (at the end of the auction). + /// @param buySignature Proof that order was created by the buyer. + /// @param sellSignature Proof that order was created by the seller. + /// @return matchedFillResults amounts filled and fees paid by maker and taker of matched orders. + function matchOrders( + LibOrder.Order memory buyOrder, + LibOrder.Order memory sellOrder, + bytes memory buySignature, + bytes memory sellSignature + ) + public + returns (LibFillResults.MatchedFillResults memory matchedFillResults) + { + AuctionDetails memory auctionDetails = getAuctionDetails(sellOrder); + // Ensure the auction has not yet started + require( + auctionDetails.currentTimeSeconds >= auctionDetails.beginTimeSeconds, + "AUCTION_NOT_STARTED" + ); + // Ensure the auction has not expired. This will fail later in 0x but we can save gas by failing early + require( + sellOrder.expirationTimeSeconds > auctionDetails.currentTimeSeconds, + "AUCTION_EXPIRED" + ); + // Validate the buyer amount is greater than the current auction amount + require( + buyOrder.makerAssetAmount >= auctionDetails.currentAmount, + "INVALID_AMOUNT" + ); + // Match orders, maximally filling `buyOrder` + matchedFillResults = EXCHANGE.matchOrders( + buyOrder, + sellOrder, + buySignature, + sellSignature + ); + // The difference in sellOrder.takerAssetAmount and current amount is given as spread to the matcher + // This may include additional spread from the buyOrder.makerAssetAmount and the currentAmount. + // e.g currentAmount is 30, sellOrder.takerAssetAmount is 10 and buyOrder.makerAssetamount is 40. + // 10 (40-30) is returned to the buyer, 20 (30-10) sent to the seller and 10 has previously + // been transferred to the seller during matchOrders + uint256 leftMakerAssetSpreadAmount = matchedFillResults.leftMakerAssetSpreadAmount; + if (leftMakerAssetSpreadAmount > 0) { + // ERC20 Asset data itself is encoded as follows: + // + // | Area | Offset | Length | Contents | + // |----------|--------|---------|-------------------------------------| + // | Header | 0 | 4 | function selector | + // | Params | | 1 * 32 | function parameters: | + // | | 4 | 12 | 1. token address padding | + // | | 16 | 20 | 2. token address | + bytes memory assetData = sellOrder.takerAssetData; + address token = assetData.readAddress(16); + // Calculate the excess from the buy order. This can occur if the buyer sends in a higher + // amount than the calculated current amount + uint256 buyerExcessAmount = safeSub(buyOrder.makerAssetAmount, auctionDetails.currentAmount); + uint256 sellerExcessAmount = safeSub(leftMakerAssetSpreadAmount, buyerExcessAmount); + // Return the difference between auctionDetails.currentAmount and sellOrder.takerAssetAmount + // to the seller + if (sellerExcessAmount > 0) { + IERC20Token(token).transfer(sellOrder.makerAddress, sellerExcessAmount); + } + // Return the difference between buyOrder.makerAssetAmount and auctionDetails.currentAmount + // to the buyer + if (buyerExcessAmount > 0) { + IERC20Token(token).transfer(buyOrder.makerAddress, buyerExcessAmount); + } + } + return matchedFillResults; + } + + /// @dev Calculates the Auction Details for the given order + /// @param order The sell order + /// @return AuctionDetails + function getAuctionDetails( + LibOrder.Order memory order + ) + public + returns (AuctionDetails memory auctionDetails) + { + uint256 makerAssetDataLength = order.makerAssetData.length; + // It is unknown the encoded data of makerAssetData, we assume the last 64 bytes + // are the Auction Details encoding. + // Auction Details is encoded as follows: + // + // | Area | Offset | Length | Contents | + // |----------|--------|---------|-------------------------------------| + // | Params | | 2 * 32 | parameters: | + // | | -64 | 32 | 1. auction begin unix timestamp | + // | | -32 | 32 | 2. auction begin begin amount | + // ERC20 asset data length is 4+32, 64 for auction details results in min length 100 + require( + makerAssetDataLength >= 100, + "INVALID_ASSET_DATA" + ); + uint256 auctionBeginTimeSeconds = order.makerAssetData.readUint256(makerAssetDataLength - 64); + uint256 auctionBeginAmount = order.makerAssetData.readUint256(makerAssetDataLength - 32); + // Ensure the auction has a valid begin time + require( + order.expirationTimeSeconds > auctionBeginTimeSeconds, + "INVALID_BEGIN_TIME" + ); + uint256 auctionDurationSeconds = order.expirationTimeSeconds-auctionBeginTimeSeconds; + // Ensure the auction goes from high to low + uint256 minAmount = order.takerAssetAmount; + require( + auctionBeginAmount > minAmount, + "INVALID_AMOUNT" + ); + uint256 amountDelta = auctionBeginAmount-minAmount; + // solhint-disable-next-line not-rely-on-time + uint256 timestamp = block.timestamp; + auctionDetails.beginTimeSeconds = auctionBeginTimeSeconds; + auctionDetails.endTimeSeconds = order.expirationTimeSeconds; + auctionDetails.beginAmount = auctionBeginAmount; + auctionDetails.endAmount = minAmount; + auctionDetails.currentTimeSeconds = timestamp; + + uint256 remainingDurationSeconds = order.expirationTimeSeconds-timestamp; + if (timestamp < auctionBeginTimeSeconds) { + // If the auction has not yet begun the current amount is the auctionBeginAmount + auctionDetails.currentAmount = auctionBeginAmount; + } else if (timestamp >= order.expirationTimeSeconds) { + // If the auction has ended the current amount is the minAmount. + // Auction end time is guaranteed by 0x Exchange due to the order expiration + auctionDetails.currentAmount = minAmount; + } else { + auctionDetails.currentAmount = safeAdd( + minAmount, + safeDiv( + safeMul(remainingDurationSeconds, amountDelta), + auctionDurationSeconds + ) + ); + } + return auctionDetails; + } +} diff --git a/contracts/core/contracts/extensions/Forwarder/Forwarder.sol b/contracts/core/contracts/extensions/Forwarder/Forwarder.sol new file mode 100644 index 000000000..94dec40ed --- /dev/null +++ b/contracts/core/contracts/extensions/Forwarder/Forwarder.sol @@ -0,0 +1,50 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "./MixinWeth.sol"; +import "./MixinForwarderCore.sol"; +import "./libs/LibConstants.sol"; +import "./MixinAssets.sol"; +import "./MixinExchangeWrapper.sol"; + + +// solhint-disable no-empty-blocks +contract Forwarder is + LibConstants, + MixinWeth, + MixinAssets, + MixinExchangeWrapper, + MixinForwarderCore +{ + constructor ( + address _exchange, + bytes memory _zrxAssetData, + bytes memory _wethAssetData + ) + public + LibConstants( + _exchange, + _zrxAssetData, + _wethAssetData + ) + MixinForwarderCore() + {} +} diff --git a/contracts/core/contracts/extensions/Forwarder/MixinAssets.sol b/contracts/core/contracts/extensions/Forwarder/MixinAssets.sol new file mode 100644 index 000000000..5f5f3456d --- /dev/null +++ b/contracts/core/contracts/extensions/Forwarder/MixinAssets.sol @@ -0,0 +1,143 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "@0x/contracts-utils/contracts/utils/LibBytes/LibBytes.sol"; +import "@0x/contracts-utils/contracts/utils/Ownable/Ownable.sol"; +import "../../tokens/ERC20Token/IERC20Token.sol"; +import "../../tokens/ERC721Token/IERC721Token.sol"; +import "./libs/LibConstants.sol"; +import "./mixins/MAssets.sol"; + + +contract MixinAssets is + Ownable, + LibConstants, + MAssets +{ + using LibBytes for bytes; + + bytes4 constant internal ERC20_TRANSFER_SELECTOR = bytes4(keccak256("transfer(address,uint256)")); + + /// @dev Withdraws assets from this contract. The contract requires a ZRX balance in order to + /// function optimally, and this function allows the ZRX to be withdrawn by owner. It may also be + /// used to withdraw assets that were accidentally sent to this contract. + /// @param assetData Byte array encoded for the respective asset proxy. + /// @param amount Amount of ERC20 token to withdraw. + function withdrawAsset( + bytes assetData, + uint256 amount + ) + external + onlyOwner + { + transferAssetToSender(assetData, amount); + } + + /// @dev Transfers given amount of asset to sender. + /// @param assetData Byte array encoded for the respective asset proxy. + /// @param amount Amount of asset to transfer to sender. + function transferAssetToSender( + bytes memory assetData, + uint256 amount + ) + internal + { + bytes4 proxyId = assetData.readBytes4(0); + + if (proxyId == ERC20_DATA_ID) { + transferERC20Token(assetData, amount); + } else if (proxyId == ERC721_DATA_ID) { + transferERC721Token(assetData, amount); + } else { + revert("UNSUPPORTED_ASSET_PROXY"); + } + } + + /// @dev Decodes ERC20 assetData and transfers given amount to sender. + /// @param assetData Byte array encoded for the respective asset proxy. + /// @param amount Amount of asset to transfer to sender. + function transferERC20Token( + bytes memory assetData, + uint256 amount + ) + internal + { + address token = assetData.readAddress(16); + + // Transfer tokens. + // We do a raw call so we can check the success separate + // from the return data. + bool success = token.call(abi.encodeWithSelector( + ERC20_TRANSFER_SELECTOR, + msg.sender, + amount + )); + require( + success, + "TRANSFER_FAILED" + ); + + // Check return data. + // If there is no return data, we assume the token incorrectly + // does not return a bool. In this case we expect it to revert + // on failure, which was handled above. + // If the token does return data, we require that it is a single + // value that evaluates to true. + assembly { + if returndatasize { + success := 0 + if eq(returndatasize, 32) { + // First 64 bytes of memory are reserved scratch space + returndatacopy(0, 0, 32) + success := mload(0) + } + } + } + require( + success, + "TRANSFER_FAILED" + ); + } + + /// @dev Decodes ERC721 assetData and transfers given amount to sender. + /// @param assetData Byte array encoded for the respective asset proxy. + /// @param amount Amount of asset to transfer to sender. + function transferERC721Token( + bytes memory assetData, + uint256 amount + ) + internal + { + require( + amount == 1, + "INVALID_AMOUNT" + ); + // Decode asset data. + address token = assetData.readAddress(16); + uint256 tokenId = assetData.readUint256(36); + + // Perform transfer. + IERC721Token(token).transferFrom( + address(this), + msg.sender, + tokenId + ); + } +} diff --git a/contracts/core/contracts/extensions/Forwarder/MixinExchangeWrapper.sol b/contracts/core/contracts/extensions/Forwarder/MixinExchangeWrapper.sol new file mode 100644 index 000000000..210eb14c2 --- /dev/null +++ b/contracts/core/contracts/extensions/Forwarder/MixinExchangeWrapper.sol @@ -0,0 +1,260 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "./libs/LibConstants.sol"; +import "./mixins/MExchangeWrapper.sol"; +import "@0x/contracts-libs/contracts/libs/LibAbiEncoder.sol"; +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; +import "@0x/contracts-libs/contracts/libs/LibFillResults.sol"; +import "@0x/contracts-libs/contracts/libs/LibMath.sol"; + + +contract MixinExchangeWrapper is + LibAbiEncoder, + LibFillResults, + LibMath, + LibConstants, + MExchangeWrapper +{ + /// @dev Fills the input order. + /// Returns false if the transaction would otherwise revert. + /// @param order Order struct containing order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param signature Proof that order has been created by maker. + /// @return Amounts filled and fees paid by maker and taker. + function fillOrderNoThrow( + LibOrder.Order memory order, + uint256 takerAssetFillAmount, + bytes memory signature + ) + internal + returns (FillResults memory fillResults) + { + // ABI encode calldata for `fillOrder` + bytes memory fillOrderCalldata = abiEncodeFillOrder( + order, + takerAssetFillAmount, + signature + ); + + address exchange = address(EXCHANGE); + + // Call `fillOrder` and handle any exceptions gracefully + assembly { + let success := call( + gas, // forward all gas + exchange, // call address of Exchange contract + 0, // transfer 0 wei + add(fillOrderCalldata, 32), // pointer to start of input (skip array length in first 32 bytes) + mload(fillOrderCalldata), // length of input + fillOrderCalldata, // write output over input + 128 // output size is 128 bytes + ) + if success { + mstore(fillResults, mload(fillOrderCalldata)) + mstore(add(fillResults, 32), mload(add(fillOrderCalldata, 32))) + mstore(add(fillResults, 64), mload(add(fillOrderCalldata, 64))) + mstore(add(fillResults, 96), mload(add(fillOrderCalldata, 96))) + } + } + // fillResults values will be 0 by default if call was unsuccessful + return fillResults; + } + + /// @dev Synchronously executes multiple calls of fillOrder until total amount of WETH has been sold by taker. + /// Returns false if the transaction would otherwise revert. + /// @param orders Array of order specifications. + /// @param wethSellAmount Desired amount of WETH to sell. + /// @param signatures Proofs that orders have been signed by makers. + /// @return Amounts filled and fees paid by makers and taker. + function marketSellWeth( + LibOrder.Order[] memory orders, + uint256 wethSellAmount, + bytes[] memory signatures + ) + internal + returns (FillResults memory totalFillResults) + { + bytes memory makerAssetData = orders[0].makerAssetData; + bytes memory wethAssetData = WETH_ASSET_DATA; + + uint256 ordersLength = orders.length; + for (uint256 i = 0; i != ordersLength; i++) { + + // We assume that asset being bought by taker is the same for each order. + // We assume that asset being sold by taker is WETH for each order. + orders[i].makerAssetData = makerAssetData; + orders[i].takerAssetData = wethAssetData; + + // Calculate the remaining amount of WETH to sell + uint256 remainingTakerAssetFillAmount = safeSub(wethSellAmount, totalFillResults.takerAssetFilledAmount); + + // Attempt to sell the remaining amount of WETH + FillResults memory singleFillResults = fillOrderNoThrow( + orders[i], + remainingTakerAssetFillAmount, + signatures[i] + ); + + // Update amounts filled and fees paid by maker and taker + addFillResults(totalFillResults, singleFillResults); + + // Stop execution if the entire amount of takerAsset has been sold + if (totalFillResults.takerAssetFilledAmount >= wethSellAmount) { + break; + } + } + return totalFillResults; + } + + /// @dev Synchronously executes multiple fill orders in a single transaction until total amount is bought by taker. + /// Returns false if the transaction would otherwise revert. + /// The asset being sold by taker must always be WETH. + /// @param orders Array of order specifications. + /// @param makerAssetFillAmount Desired amount of makerAsset to buy. + /// @param signatures Proofs that orders have been signed by makers. + /// @return Amounts filled and fees paid by makers and taker. + function marketBuyExactAmountWithWeth( + LibOrder.Order[] memory orders, + uint256 makerAssetFillAmount, + bytes[] memory signatures + ) + internal + returns (FillResults memory totalFillResults) + { + bytes memory makerAssetData = orders[0].makerAssetData; + bytes memory wethAssetData = WETH_ASSET_DATA; + + uint256 ordersLength = orders.length; + for (uint256 i = 0; i != ordersLength; i++) { + + // We assume that asset being bought by taker is the same for each order. + // We assume that asset being sold by taker is WETH for each order. + orders[i].makerAssetData = makerAssetData; + orders[i].takerAssetData = wethAssetData; + + // Calculate the remaining amount of makerAsset to buy + uint256 remainingMakerAssetFillAmount = safeSub(makerAssetFillAmount, totalFillResults.makerAssetFilledAmount); + + // Convert the remaining amount of makerAsset to buy into remaining amount + // of takerAsset to sell, assuming entire amount can be sold in the current order. + // We round up because the exchange rate computed by fillOrder rounds in favor + // of the Maker. In this case we want to overestimate the amount of takerAsset. + uint256 remainingTakerAssetFillAmount = getPartialAmountCeil( + orders[i].takerAssetAmount, + orders[i].makerAssetAmount, + remainingMakerAssetFillAmount + ); + + // Attempt to sell the remaining amount of takerAsset + FillResults memory singleFillResults = fillOrderNoThrow( + orders[i], + remainingTakerAssetFillAmount, + signatures[i] + ); + + // Update amounts filled and fees paid by maker and taker + addFillResults(totalFillResults, singleFillResults); + + // Stop execution if the entire amount of makerAsset has been bought + uint256 makerAssetFilledAmount = totalFillResults.makerAssetFilledAmount; + if (makerAssetFilledAmount >= makerAssetFillAmount) { + break; + } + } + + require( + makerAssetFilledAmount >= makerAssetFillAmount, + "COMPLETE_FILL_FAILED" + ); + return totalFillResults; + } + + /// @dev Buys zrxBuyAmount of ZRX fee tokens, taking into account ZRX fees for each order. This will guarantee + /// that at least zrxBuyAmount of ZRX is purchased (sometimes slightly over due to rounding issues). + /// It is possible that a request to buy 200 ZRX will require purchasing 202 ZRX + /// as 2 ZRX is required to purchase the 200 ZRX fee tokens. This guarantees at least 200 ZRX for future purchases. + /// The asset being sold by taker must always be WETH. + /// @param orders Array of order specifications containing ZRX as makerAsset and WETH as takerAsset. + /// @param zrxBuyAmount Desired amount of ZRX to buy. + /// @param signatures Proofs that orders have been created by makers. + /// @return totalFillResults Amounts filled and fees paid by maker and taker. + function marketBuyExactZrxWithWeth( + LibOrder.Order[] memory orders, + uint256 zrxBuyAmount, + bytes[] memory signatures + ) + internal + returns (FillResults memory totalFillResults) + { + // Do nothing if zrxBuyAmount == 0 + if (zrxBuyAmount == 0) { + return totalFillResults; + } + + bytes memory zrxAssetData = ZRX_ASSET_DATA; + bytes memory wethAssetData = WETH_ASSET_DATA; + uint256 zrxPurchased = 0; + + uint256 ordersLength = orders.length; + for (uint256 i = 0; i != ordersLength; i++) { + + // All of these are ZRX/WETH, so we can drop the respective assetData from calldata. + orders[i].makerAssetData = zrxAssetData; + orders[i].takerAssetData = wethAssetData; + + // Calculate the remaining amount of ZRX to buy. + uint256 remainingZrxBuyAmount = safeSub(zrxBuyAmount, zrxPurchased); + + // Convert the remaining amount of ZRX to buy into remaining amount + // of WETH to sell, assuming entire amount can be sold in the current order. + // We round up because the exchange rate computed by fillOrder rounds in favor + // of the Maker. In this case we want to overestimate the amount of takerAsset. + uint256 remainingWethSellAmount = getPartialAmountCeil( + orders[i].takerAssetAmount, + safeSub(orders[i].makerAssetAmount, orders[i].takerFee), // our exchange rate after fees + remainingZrxBuyAmount + ); + + // Attempt to sell the remaining amount of WETH. + FillResults memory singleFillResult = fillOrderNoThrow( + orders[i], + remainingWethSellAmount, + signatures[i] + ); + + // Update amounts filled and fees paid by maker and taker. + addFillResults(totalFillResults, singleFillResult); + zrxPurchased = safeSub(totalFillResults.makerAssetFilledAmount, totalFillResults.takerFeePaid); + + // Stop execution if the entire amount of ZRX has been bought. + if (zrxPurchased >= zrxBuyAmount) { + break; + } + } + + require( + zrxPurchased >= zrxBuyAmount, + "COMPLETE_FILL_FAILED" + ); + return totalFillResults; + } +} diff --git a/contracts/core/contracts/extensions/Forwarder/MixinForwarderCore.sol b/contracts/core/contracts/extensions/Forwarder/MixinForwarderCore.sol new file mode 100644 index 000000000..bab78d79b --- /dev/null +++ b/contracts/core/contracts/extensions/Forwarder/MixinForwarderCore.sol @@ -0,0 +1,214 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "./libs/LibConstants.sol"; +import "./mixins/MWeth.sol"; +import "./mixins/MAssets.sol"; +import "./mixins/MExchangeWrapper.sol"; +import "./interfaces/IForwarderCore.sol"; +import "@0x/contracts-utils/contracts/utils/LibBytes/LibBytes.sol"; +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; +import "@0x/contracts-libs/contracts/libs/LibFillResults.sol"; +import "@0x/contracts-libs/contracts/libs/LibMath.sol"; + + +contract MixinForwarderCore is + LibFillResults, + LibMath, + LibConstants, + MWeth, + MAssets, + MExchangeWrapper, + IForwarderCore +{ + using LibBytes for bytes; + + /// @dev Constructor approves ERC20 proxy to transfer ZRX and WETH on this contract's behalf. + constructor () + public + { + address proxyAddress = EXCHANGE.getAssetProxy(ERC20_DATA_ID); + require( + proxyAddress != address(0), + "UNREGISTERED_ASSET_PROXY" + ); + ETHER_TOKEN.approve(proxyAddress, MAX_UINT); + ZRX_TOKEN.approve(proxyAddress, MAX_UINT); + } + + /// @dev Purchases as much of orders' makerAssets as possible by selling up to 95% of transaction's ETH value. + /// Any ZRX required to pay fees for primary orders will automatically be purchased by this contract. + /// 5% of ETH value is reserved for paying fees to order feeRecipients (in ZRX) and forwarding contract feeRecipient (in ETH). + /// Any ETH not spent will be refunded to sender. + /// @param orders Array of order specifications used containing desired makerAsset and WETH as takerAsset. + /// @param signatures Proofs that orders have been created by makers. + /// @param feeOrders Array of order specifications containing ZRX as makerAsset and WETH as takerAsset. Used to purchase ZRX for primary order fees. + /// @param feeSignatures Proofs that feeOrders have been created by makers. + /// @param feePercentage Percentage of WETH sold that will payed as fee to forwarding contract feeRecipient. + /// @param feeRecipient Address that will receive ETH when orders are filled. + /// @return Amounts filled and fees paid by maker and taker for both sets of orders. + function marketSellOrdersWithEth( + LibOrder.Order[] memory orders, + bytes[] memory signatures, + LibOrder.Order[] memory feeOrders, + bytes[] memory feeSignatures, + uint256 feePercentage, + address feeRecipient + ) + public + payable + returns ( + FillResults memory orderFillResults, + FillResults memory feeOrderFillResults + ) + { + // Convert ETH to WETH. + convertEthToWeth(); + + uint256 wethSellAmount; + uint256 zrxBuyAmount; + uint256 makerAssetAmountPurchased; + if (orders[0].makerAssetData.equals(ZRX_ASSET_DATA)) { + // Calculate amount of WETH that won't be spent on ETH fees. + wethSellAmount = getPartialAmountFloor( + PERCENTAGE_DENOMINATOR, + safeAdd(PERCENTAGE_DENOMINATOR, feePercentage), + msg.value + ); + // Market sell available WETH. + // ZRX fees are paid with this contract's balance. + orderFillResults = marketSellWeth( + orders, + wethSellAmount, + signatures + ); + // The fee amount must be deducted from the amount transfered back to sender. + makerAssetAmountPurchased = safeSub(orderFillResults.makerAssetFilledAmount, orderFillResults.takerFeePaid); + } else { + // 5% of WETH is reserved for filling feeOrders and paying feeRecipient. + wethSellAmount = getPartialAmountFloor( + MAX_WETH_FILL_PERCENTAGE, + PERCENTAGE_DENOMINATOR, + msg.value + ); + // Market sell 95% of WETH. + // ZRX fees are payed with this contract's balance. + orderFillResults = marketSellWeth( + orders, + wethSellAmount, + signatures + ); + // Buy back all ZRX spent on fees. + zrxBuyAmount = orderFillResults.takerFeePaid; + feeOrderFillResults = marketBuyExactZrxWithWeth( + feeOrders, + zrxBuyAmount, + feeSignatures + ); + makerAssetAmountPurchased = orderFillResults.makerAssetFilledAmount; + } + + // Transfer feePercentage of total ETH spent on primary orders to feeRecipient. + // Refund remaining ETH to msg.sender. + transferEthFeeAndRefund( + orderFillResults.takerAssetFilledAmount, + feeOrderFillResults.takerAssetFilledAmount, + feePercentage, + feeRecipient + ); + + // Transfer purchased assets to msg.sender. + transferAssetToSender(orders[0].makerAssetData, makerAssetAmountPurchased); + } + + /// @dev Attempt to purchase makerAssetFillAmount of makerAsset by selling ETH provided with transaction. + /// Any ZRX required to pay fees for primary orders will automatically be purchased by this contract. + /// Any ETH not spent will be refunded to sender. + /// @param orders Array of order specifications used containing desired makerAsset and WETH as takerAsset. + /// @param makerAssetFillAmount Desired amount of makerAsset to purchase. + /// @param signatures Proofs that orders have been created by makers. + /// @param feeOrders Array of order specifications containing ZRX as makerAsset and WETH as takerAsset. Used to purchase ZRX for primary order fees. + /// @param feeSignatures Proofs that feeOrders have been created by makers. + /// @param feePercentage Percentage of WETH sold that will payed as fee to forwarding contract feeRecipient. + /// @param feeRecipient Address that will receive ETH when orders are filled. + /// @return Amounts filled and fees paid by maker and taker for both sets of orders. + function marketBuyOrdersWithEth( + LibOrder.Order[] memory orders, + uint256 makerAssetFillAmount, + bytes[] memory signatures, + LibOrder.Order[] memory feeOrders, + bytes[] memory feeSignatures, + uint256 feePercentage, + address feeRecipient + ) + public + payable + returns ( + FillResults memory orderFillResults, + FillResults memory feeOrderFillResults + ) + { + // Convert ETH to WETH. + convertEthToWeth(); + + uint256 zrxBuyAmount; + uint256 makerAssetAmountPurchased; + if (orders[0].makerAssetData.equals(ZRX_ASSET_DATA)) { + // If the makerAsset is ZRX, it is not necessary to pay fees out of this + // contracts's ZRX balance because fees are factored into the price of the order. + orderFillResults = marketBuyExactZrxWithWeth( + orders, + makerAssetFillAmount, + signatures + ); + // The fee amount must be deducted from the amount transfered back to sender. + makerAssetAmountPurchased = safeSub(orderFillResults.makerAssetFilledAmount, orderFillResults.takerFeePaid); + } else { + // Attemp to purchase desired amount of makerAsset. + // ZRX fees are payed with this contract's balance. + orderFillResults = marketBuyExactAmountWithWeth( + orders, + makerAssetFillAmount, + signatures + ); + // Buy back all ZRX spent on fees. + zrxBuyAmount = orderFillResults.takerFeePaid; + feeOrderFillResults = marketBuyExactZrxWithWeth( + feeOrders, + zrxBuyAmount, + feeSignatures + ); + makerAssetAmountPurchased = orderFillResults.makerAssetFilledAmount; + } + + // Transfer feePercentage of total ETH spent on primary orders to feeRecipient. + // Refund remaining ETH to msg.sender. + transferEthFeeAndRefund( + orderFillResults.takerAssetFilledAmount, + feeOrderFillResults.takerAssetFilledAmount, + feePercentage, + feeRecipient + ); + + // Transfer purchased assets to msg.sender. + transferAssetToSender(orders[0].makerAssetData, makerAssetAmountPurchased); + } +} diff --git a/contracts/core/contracts/extensions/Forwarder/MixinWeth.sol b/contracts/core/contracts/extensions/Forwarder/MixinWeth.sol new file mode 100644 index 000000000..2a281f3ae --- /dev/null +++ b/contracts/core/contracts/extensions/Forwarder/MixinWeth.sol @@ -0,0 +1,113 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "@0x/contracts-libs/contracts/libs/LibMath.sol"; +import "./libs/LibConstants.sol"; +import "./mixins/MWeth.sol"; + + +contract MixinWeth is + LibMath, + LibConstants, + MWeth +{ + /// @dev Default payabale function, this allows us to withdraw WETH + function () + public + payable + { + require( + msg.sender == address(ETHER_TOKEN), + "DEFAULT_FUNCTION_WETH_CONTRACT_ONLY" + ); + } + + /// @dev Converts message call's ETH value into WETH. + function convertEthToWeth() + internal + { + require( + msg.value > 0, + "INVALID_MSG_VALUE" + ); + ETHER_TOKEN.deposit.value(msg.value)(); + } + + /// @dev Transfers feePercentage of WETH spent on primary orders to feeRecipient. + /// Refunds any excess ETH to msg.sender. + /// @param wethSoldExcludingFeeOrders Amount of WETH sold when filling primary orders. + /// @param wethSoldForZrx Amount of WETH sold when purchasing ZRX required for primary order fees. + /// @param feePercentage Percentage of WETH sold that will payed as fee to forwarding contract feeRecipient. + /// @param feeRecipient Address that will receive ETH when orders are filled. + function transferEthFeeAndRefund( + uint256 wethSoldExcludingFeeOrders, + uint256 wethSoldForZrx, + uint256 feePercentage, + address feeRecipient + ) + internal + { + // Ensure feePercentage is less than 5%. + require( + feePercentage <= MAX_FEE_PERCENTAGE, + "FEE_PERCENTAGE_TOO_LARGE" + ); + + // Ensure that no extra WETH owned by this contract has been sold. + uint256 wethSold = safeAdd(wethSoldExcludingFeeOrders, wethSoldForZrx); + require( + wethSold <= msg.value, + "OVERSOLD_WETH" + ); + + // Calculate amount of WETH that hasn't been sold. + uint256 wethRemaining = safeSub(msg.value, wethSold); + + // Calculate ETH fee to pay to feeRecipient. + uint256 ethFee = getPartialAmountFloor( + feePercentage, + PERCENTAGE_DENOMINATOR, + wethSoldExcludingFeeOrders + ); + + // Ensure fee is less than amount of WETH remaining. + require( + ethFee <= wethRemaining, + "INSUFFICIENT_ETH_REMAINING" + ); + + // Do nothing if no WETH remaining + if (wethRemaining > 0) { + // Convert remaining WETH to ETH + ETHER_TOKEN.withdraw(wethRemaining); + + // Pay ETH to feeRecipient + if (ethFee > 0) { + feeRecipient.transfer(ethFee); + } + + // Refund remaining ETH to msg.sender. + uint256 ethRefund = safeSub(wethRemaining, ethFee); + if (ethRefund > 0) { + msg.sender.transfer(ethRefund); + } + } + } +} diff --git a/contracts/core/contracts/extensions/Forwarder/interfaces/IAssets.sol b/contracts/core/contracts/extensions/Forwarder/interfaces/IAssets.sol new file mode 100644 index 000000000..1e034c003 --- /dev/null +++ b/contracts/core/contracts/extensions/Forwarder/interfaces/IAssets.sol @@ -0,0 +1,34 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + + +contract IAssets { + + /// @dev Withdraws assets from this contract. The contract requires a ZRX balance in order to + /// function optimally, and this function allows the ZRX to be withdrawn by owner. It may also be + /// used to withdraw assets that were accidentally sent to this contract. + /// @param assetData Byte array encoded for the respective asset proxy. + /// @param amount Amount of ERC20 token to withdraw. + function withdrawAsset( + bytes assetData, + uint256 amount + ) + external; +} diff --git a/contracts/core/contracts/extensions/Forwarder/interfaces/IForwarder.sol b/contracts/core/contracts/extensions/Forwarder/interfaces/IForwarder.sol new file mode 100644 index 000000000..f5a26e2ba --- /dev/null +++ b/contracts/core/contracts/extensions/Forwarder/interfaces/IForwarder.sol @@ -0,0 +1,30 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "./IForwarderCore.sol"; +import "./IAssets.sol"; + + +// solhint-disable no-empty-blocks +contract IForwarder is + IForwarderCore, + IAssets +{} diff --git a/contracts/core/contracts/extensions/Forwarder/interfaces/IForwarderCore.sol b/contracts/core/contracts/extensions/Forwarder/interfaces/IForwarderCore.sol new file mode 100644 index 000000000..eede20bb8 --- /dev/null +++ b/contracts/core/contracts/extensions/Forwarder/interfaces/IForwarderCore.sol @@ -0,0 +1,80 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; +import "@0x/contracts-libs/contracts/libs/LibFillResults.sol"; + + +contract IForwarderCore { + + /// @dev Purchases as much of orders' makerAssets as possible by selling up to 95% of transaction's ETH value. + /// Any ZRX required to pay fees for primary orders will automatically be purchased by this contract. + /// 5% of ETH value is reserved for paying fees to order feeRecipients (in ZRX) and forwarding contract feeRecipient (in ETH). + /// Any ETH not spent will be refunded to sender. + /// @param orders Array of order specifications used containing desired makerAsset and WETH as takerAsset. + /// @param signatures Proofs that orders have been created by makers. + /// @param feeOrders Array of order specifications containing ZRX as makerAsset and WETH as takerAsset. Used to purchase ZRX for primary order fees. + /// @param feeSignatures Proofs that feeOrders have been created by makers. + /// @param feePercentage Percentage of WETH sold that will payed as fee to forwarding contract feeRecipient. + /// @param feeRecipient Address that will receive ETH when orders are filled. + /// @return Amounts filled and fees paid by maker and taker for both sets of orders. + function marketSellOrdersWithEth( + LibOrder.Order[] memory orders, + bytes[] memory signatures, + LibOrder.Order[] memory feeOrders, + bytes[] memory feeSignatures, + uint256 feePercentage, + address feeRecipient + ) + public + payable + returns ( + LibFillResults.FillResults memory orderFillResults, + LibFillResults.FillResults memory feeOrderFillResults + ); + + /// @dev Attempt to purchase makerAssetFillAmount of makerAsset by selling ETH provided with transaction. + /// Any ZRX required to pay fees for primary orders will automatically be purchased by this contract. + /// Any ETH not spent will be refunded to sender. + /// @param orders Array of order specifications used containing desired makerAsset and WETH as takerAsset. + /// @param makerAssetFillAmount Desired amount of makerAsset to purchase. + /// @param signatures Proofs that orders have been created by makers. + /// @param feeOrders Array of order specifications containing ZRX as makerAsset and WETH as takerAsset. Used to purchase ZRX for primary order fees. + /// @param feeSignatures Proofs that feeOrders have been created by makers. + /// @param feePercentage Percentage of WETH sold that will payed as fee to forwarding contract feeRecipient. + /// @param feeRecipient Address that will receive ETH when orders are filled. + /// @return Amounts filled and fees paid by maker and taker for both sets of orders. + function marketBuyOrdersWithEth( + LibOrder.Order[] memory orders, + uint256 makerAssetFillAmount, + bytes[] memory signatures, + LibOrder.Order[] memory feeOrders, + bytes[] memory feeSignatures, + uint256 feePercentage, + address feeRecipient + ) + public + payable + returns ( + LibFillResults.FillResults memory orderFillResults, + LibFillResults.FillResults memory feeOrderFillResults + ); +} diff --git a/contracts/core/contracts/extensions/Forwarder/libs/LibConstants.sol b/contracts/core/contracts/extensions/Forwarder/libs/LibConstants.sol new file mode 100644 index 000000000..0f98ae595 --- /dev/null +++ b/contracts/core/contracts/extensions/Forwarder/libs/LibConstants.sol @@ -0,0 +1,62 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "@0x/contracts-utils/contracts/utils/LibBytes/LibBytes.sol"; +import "../../../protocol/Exchange/interfaces/IExchange.sol"; +import "../../../tokens/EtherToken/IEtherToken.sol"; +import "../../../tokens/ERC20Token/IERC20Token.sol"; + + +contract LibConstants { + + using LibBytes for bytes; + + bytes4 constant internal ERC20_DATA_ID = bytes4(keccak256("ERC20Token(address)")); + bytes4 constant internal ERC721_DATA_ID = bytes4(keccak256("ERC721Token(address,uint256)")); + uint256 constant internal MAX_UINT = 2**256 - 1; + uint256 constant internal PERCENTAGE_DENOMINATOR = 10**18; + uint256 constant internal MAX_FEE_PERCENTAGE = 5 * PERCENTAGE_DENOMINATOR / 100; // 5% + uint256 constant internal MAX_WETH_FILL_PERCENTAGE = 95 * PERCENTAGE_DENOMINATOR / 100; // 95% + + // solhint-disable var-name-mixedcase + IExchange internal EXCHANGE; + IEtherToken internal ETHER_TOKEN; + IERC20Token internal ZRX_TOKEN; + bytes internal ZRX_ASSET_DATA; + bytes internal WETH_ASSET_DATA; + // solhint-enable var-name-mixedcase + + constructor ( + address _exchange, + bytes memory _zrxAssetData, + bytes memory _wethAssetData + ) + public + { + EXCHANGE = IExchange(_exchange); + ZRX_ASSET_DATA = _zrxAssetData; + WETH_ASSET_DATA = _wethAssetData; + + address etherToken = _wethAssetData.readAddress(16); + address zrxToken = _zrxAssetData.readAddress(16); + ETHER_TOKEN = IEtherToken(etherToken); + ZRX_TOKEN = IERC20Token(zrxToken); + } +} diff --git a/contracts/core/contracts/extensions/Forwarder/libs/LibForwarderErrors.sol b/contracts/core/contracts/extensions/Forwarder/libs/LibForwarderErrors.sol new file mode 100644 index 000000000..fb3ade1db --- /dev/null +++ b/contracts/core/contracts/extensions/Forwarder/libs/LibForwarderErrors.sol @@ -0,0 +1,34 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +// solhint-disable +pragma solidity 0.4.24; + + +/// This contract is intended to serve as a reference, but is not actually used for efficiency reasons. +contract LibForwarderErrors { + string constant FEE_PERCENTAGE_TOO_LARGE = "FEE_PROPORTION_TOO_LARGE"; // Provided fee percentage greater than 5%. + string constant INSUFFICIENT_ETH_REMAINING = "INSUFFICIENT_ETH_REMAINING"; // Not enough ETH remaining to pay feeRecipient. + string constant OVERSOLD_WETH = "OVERSOLD_WETH"; // More WETH sold than provided with current message call. + string constant COMPLETE_FILL_FAILED = "COMPLETE_FILL_FAILED"; // Desired purchase amount not completely filled (required for ZRX fees only). + string constant TRANSFER_FAILED = "TRANSFER_FAILED"; // Asset transfer failed. + string constant UNSUPPORTED_ASSET_PROXY = "UNSUPPORTED_ASSET_PROXY"; // Proxy in assetData not supported. + string constant DEFAULT_FUNCTION_WETH_CONTRACT_ONLY = "DEFAULT_FUNCTION_WETH_CONTRACT_ONLY"; // Fallback function may only be used for WETH withdrawals. + string constant INVALID_MSG_VALUE = "INVALID_MSG_VALUE"; // msg.value must be greater than 0. + string constant INVALID_AMOUNT = "INVALID_AMOUNT"; // Amount must equal 1. +} diff --git a/contracts/core/contracts/extensions/Forwarder/mixins/MAssets.sol b/contracts/core/contracts/extensions/Forwarder/mixins/MAssets.sol new file mode 100644 index 000000000..9e7f80d97 --- /dev/null +++ b/contracts/core/contracts/extensions/Forwarder/mixins/MAssets.sol @@ -0,0 +1,53 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "../interfaces/IAssets.sol"; + + +contract MAssets is + IAssets +{ + /// @dev Transfers given amount of asset to sender. + /// @param assetData Byte array encoded for the respective asset proxy. + /// @param amount Amount of asset to transfer to sender. + function transferAssetToSender( + bytes memory assetData, + uint256 amount + ) + internal; + + /// @dev Decodes ERC20 assetData and transfers given amount to sender. + /// @param assetData Byte array encoded for the respective asset proxy. + /// @param amount Amount of asset to transfer to sender. + function transferERC20Token( + bytes memory assetData, + uint256 amount + ) + internal; + + /// @dev Decodes ERC721 assetData and transfers given amount to sender. + /// @param assetData Byte array encoded for the respective asset proxy. + /// @param amount Amount of asset to transfer to sender. + function transferERC721Token( + bytes memory assetData, + uint256 amount + ) + internal; +} diff --git a/contracts/core/contracts/extensions/Forwarder/mixins/MExchangeWrapper.sol b/contracts/core/contracts/extensions/Forwarder/mixins/MExchangeWrapper.sol new file mode 100644 index 000000000..d9e71786a --- /dev/null +++ b/contracts/core/contracts/extensions/Forwarder/mixins/MExchangeWrapper.sol @@ -0,0 +1,87 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; +import "@0x/contracts-libs/contracts/libs/LibFillResults.sol"; + + +contract MExchangeWrapper { + + /// @dev Fills the input order. + /// Returns false if the transaction would otherwise revert. + /// @param order Order struct containing order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param signature Proof that order has been created by maker. + /// @return Amounts filled and fees paid by maker and taker. + function fillOrderNoThrow( + LibOrder.Order memory order, + uint256 takerAssetFillAmount, + bytes memory signature + ) + internal + returns (LibFillResults.FillResults memory fillResults); + + /// @dev Synchronously executes multiple calls of fillOrder until total amount of WETH has been sold by taker. + /// Returns false if the transaction would otherwise revert. + /// @param orders Array of order specifications. + /// @param wethSellAmount Desired amount of WETH to sell. + /// @param signatures Proofs that orders have been signed by makers. + /// @return Amounts filled and fees paid by makers and taker. + function marketSellWeth( + LibOrder.Order[] memory orders, + uint256 wethSellAmount, + bytes[] memory signatures + ) + internal + returns (LibFillResults.FillResults memory totalFillResults); + + /// @dev Synchronously executes multiple fill orders in a single transaction until total amount is bought by taker. + /// Returns false if the transaction would otherwise revert. + /// The asset being sold by taker must always be WETH. + /// @param orders Array of order specifications. + /// @param makerAssetFillAmount Desired amount of makerAsset to buy. + /// @param signatures Proofs that orders have been signed by makers. + /// @return Amounts filled and fees paid by makers and taker. + function marketBuyExactAmountWithWeth( + LibOrder.Order[] memory orders, + uint256 makerAssetFillAmount, + bytes[] memory signatures + ) + internal + returns (LibFillResults.FillResults memory totalFillResults); + + /// @dev Buys zrxBuyAmount of ZRX fee tokens, taking into account ZRX fees for each order. This will guarantee + /// that at least zrxBuyAmount of ZRX is purchased (sometimes slightly over due to rounding issues). + /// It is possible that a request to buy 200 ZRX will require purchasing 202 ZRX + /// as 2 ZRX is required to purchase the 200 ZRX fee tokens. This guarantees at least 200 ZRX for future purchases. + /// The asset being sold by taker must always be WETH. + /// @param orders Array of order specifications containing ZRX as makerAsset and WETH as takerAsset. + /// @param zrxBuyAmount Desired amount of ZRX to buy. + /// @param signatures Proofs that orders have been created by makers. + /// @return totalFillResults Amounts filled and fees paid by maker and taker. + function marketBuyExactZrxWithWeth( + LibOrder.Order[] memory orders, + uint256 zrxBuyAmount, + bytes[] memory signatures + ) + internal + returns (LibFillResults.FillResults memory totalFillResults); +} diff --git a/contracts/core/contracts/extensions/Forwarder/mixins/MWeth.sol b/contracts/core/contracts/extensions/Forwarder/mixins/MWeth.sol new file mode 100644 index 000000000..88e77be4e --- /dev/null +++ b/contracts/core/contracts/extensions/Forwarder/mixins/MWeth.sol @@ -0,0 +1,41 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + + +contract MWeth { + + /// @dev Converts message call's ETH value into WETH. + function convertEthToWeth() + internal; + + /// @dev Transfers feePercentage of WETH spent on primary orders to feeRecipient. + /// Refunds any excess ETH to msg.sender. + /// @param wethSoldExcludingFeeOrders Amount of WETH sold when filling primary orders. + /// @param wethSoldForZrx Amount of WETH sold when purchasing ZRX required for primary order fees. + /// @param feePercentage Percentage of WETH sold that will payed as fee to forwarding contract feeRecipient. + /// @param feeRecipient Address that will receive ETH when orders are filled. + function transferEthFeeAndRefund( + uint256 wethSoldExcludingFeeOrders, + uint256 wethSoldForZrx, + uint256 feePercentage, + address feeRecipient + ) + internal; +} diff --git a/contracts/core/contracts/extensions/OrderValidator/OrderValidator.sol b/contracts/core/contracts/extensions/OrderValidator/OrderValidator.sol new file mode 100644 index 000000000..9e9e63e9b --- /dev/null +++ b/contracts/core/contracts/extensions/OrderValidator/OrderValidator.sol @@ -0,0 +1,218 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "../../protocol/Exchange/interfaces/IExchange.sol"; +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; +import "../../tokens/ERC20Token/IERC20Token.sol"; +import "../../tokens/ERC721Token/IERC721Token.sol"; +import "@0x/contracts-utils/contracts/utils/LibBytes/LibBytes.sol"; + + +contract OrderValidator { + + using LibBytes for bytes; + + bytes4 constant internal ERC20_DATA_ID = bytes4(keccak256("ERC20Token(address)")); + bytes4 constant internal ERC721_DATA_ID = bytes4(keccak256("ERC721Token(address,uint256)")); + + struct TraderInfo { + uint256 makerBalance; // Maker's balance of makerAsset + uint256 makerAllowance; // Maker's allowance to corresponding AssetProxy + uint256 takerBalance; // Taker's balance of takerAsset + uint256 takerAllowance; // Taker's allowance to corresponding AssetProxy + uint256 makerZrxBalance; // Maker's balance of ZRX + uint256 makerZrxAllowance; // Maker's allowance of ZRX to ERC20Proxy + uint256 takerZrxBalance; // Taker's balance of ZRX + uint256 takerZrxAllowance; // Taker's allowance of ZRX to ERC20Proxy + } + + // solhint-disable var-name-mixedcase + IExchange internal EXCHANGE; + bytes internal ZRX_ASSET_DATA; + // solhint-enable var-name-mixedcase + + constructor (address _exchange, bytes memory _zrxAssetData) + public + { + EXCHANGE = IExchange(_exchange); + ZRX_ASSET_DATA = _zrxAssetData; + } + + /// @dev Fetches information for order and maker/taker of order. + /// @param order The order structure. + /// @param takerAddress Address that will be filling the order. + /// @return OrderInfo and TraderInfo instances for given order. + function getOrderAndTraderInfo(LibOrder.Order memory order, address takerAddress) + public + view + returns (LibOrder.OrderInfo memory orderInfo, TraderInfo memory traderInfo) + { + orderInfo = EXCHANGE.getOrderInfo(order); + traderInfo = getTraderInfo(order, takerAddress); + return (orderInfo, traderInfo); + } + + /// @dev Fetches information for all passed in orders and the makers/takers of each order. + /// @param orders Array of order specifications. + /// @param takerAddresses Array of taker addresses corresponding to each order. + /// @return Arrays of OrderInfo and TraderInfo instances that correspond to each order. + function getOrdersAndTradersInfo(LibOrder.Order[] memory orders, address[] memory takerAddresses) + public + view + returns (LibOrder.OrderInfo[] memory ordersInfo, TraderInfo[] memory tradersInfo) + { + ordersInfo = EXCHANGE.getOrdersInfo(orders); + tradersInfo = getTradersInfo(orders, takerAddresses); + return (ordersInfo, tradersInfo); + } + + /// @dev Fetches balance and allowances for maker and taker of order. + /// @param order The order structure. + /// @param takerAddress Address that will be filling the order. + /// @return Balances and allowances of maker and taker of order. + function getTraderInfo(LibOrder.Order memory order, address takerAddress) + public + view + returns (TraderInfo memory traderInfo) + { + (traderInfo.makerBalance, traderInfo.makerAllowance) = getBalanceAndAllowance(order.makerAddress, order.makerAssetData); + (traderInfo.takerBalance, traderInfo.takerAllowance) = getBalanceAndAllowance(takerAddress, order.takerAssetData); + bytes memory zrxAssetData = ZRX_ASSET_DATA; + (traderInfo.makerZrxBalance, traderInfo.makerZrxAllowance) = getBalanceAndAllowance(order.makerAddress, zrxAssetData); + (traderInfo.takerZrxBalance, traderInfo.takerZrxAllowance) = getBalanceAndAllowance(takerAddress, zrxAssetData); + return traderInfo; + } + + /// @dev Fetches balances and allowances of maker and taker for each provided order. + /// @param orders Array of order specifications. + /// @param takerAddresses Array of taker addresses corresponding to each order. + /// @return Array of balances and allowances for maker and taker of each order. + function getTradersInfo(LibOrder.Order[] memory orders, address[] memory takerAddresses) + public + view + returns (TraderInfo[] memory) + { + uint256 ordersLength = orders.length; + TraderInfo[] memory tradersInfo = new TraderInfo[](ordersLength); + for (uint256 i = 0; i != ordersLength; i++) { + tradersInfo[i] = getTraderInfo(orders[i], takerAddresses[i]); + } + return tradersInfo; + } + + /// @dev Fetches token balances and allowances of an address to given assetProxy. Supports ERC20 and ERC721. + /// @param target Address to fetch balances and allowances of. + /// @param assetData Encoded data that can be decoded by a specified proxy contract when transferring asset. + /// @return Balance of asset and allowance set to given proxy of asset. + /// For ERC721 tokens, these values will always be 1 or 0. + function getBalanceAndAllowance(address target, bytes memory assetData) + public + view + returns (uint256 balance, uint256 allowance) + { + bytes4 assetProxyId = assetData.readBytes4(0); + address token = assetData.readAddress(16); + address assetProxy = EXCHANGE.getAssetProxy(assetProxyId); + + if (assetProxyId == ERC20_DATA_ID) { + // Query balance + balance = IERC20Token(token).balanceOf(target); + + // Query allowance + allowance = IERC20Token(token).allowance(target, assetProxy); + } else if (assetProxyId == ERC721_DATA_ID) { + uint256 tokenId = assetData.readUint256(36); + + // Query owner of tokenId + address owner = getERC721TokenOwner(token, tokenId); + + // Set balance to 1 if tokenId is owned by target + balance = target == owner ? 1 : 0; + + // Check if ERC721Proxy is approved to spend tokenId + bool isApproved = IERC721Token(token).isApprovedForAll(target, assetProxy); + + // Set alowance to 1 if ERC721Proxy is approved to spend tokenId + allowance = isApproved ? 1 : 0; + } else { + revert("UNSUPPORTED_ASSET_PROXY"); + } + return (balance, allowance); + } + + /// @dev Fetches token balances and allowances of an address for each given assetProxy. Supports ERC20 and ERC721. + /// @param target Address to fetch balances and allowances of. + /// @param assetData Array of encoded byte arrays that can be decoded by a specified proxy contract when transferring asset. + /// @return Balances and allowances of assets. + /// For ERC721 tokens, these values will always be 1 or 0. + function getBalancesAndAllowances(address target, bytes[] memory assetData) + public + view + returns (uint256[] memory, uint256[] memory) + { + uint256 length = assetData.length; + uint256[] memory balances = new uint256[](length); + uint256[] memory allowances = new uint256[](length); + for (uint256 i = 0; i != length; i++) { + (balances[i], allowances[i]) = getBalanceAndAllowance(target, assetData[i]); + } + return (balances, allowances); + } + + /// @dev Calls `token.ownerOf(tokenId)`, but returns a null owner instead of reverting on an unowned token. + /// @param token Address of ERC721 token. + /// @param tokenId The identifier for the specific NFT. + /// @return Owner of tokenId or null address if unowned. + function getERC721TokenOwner(address token, uint256 tokenId) + public + view + returns (address owner) + { + assembly { + // load free memory pointer + let cdStart := mload(64) + + // bytes4(keccak256(ownerOf(uint256))) = 0x6352211e + mstore(cdStart, 0x6352211e00000000000000000000000000000000000000000000000000000000) + mstore(add(cdStart, 4), tokenId) + + // staticcall `ownerOf(tokenId)` + // `ownerOf` will revert if tokenId is not owned + let success := staticcall( + gas, // forward all gas + token, // call token contract + cdStart, // start of calldata + 36, // length of input is 36 bytes + cdStart, // write output over input + 32 // size of output is 32 bytes + ) + + // Success implies that tokenId is owned + // Copy owner from return data if successful + if success { + owner := mload(cdStart) + } + } + + // Owner initialized to address(0), no need to modify if call is unsuccessful + return owner; + } +} diff --git a/contracts/core/contracts/protocol/AssetProxy/ERC20Proxy.sol b/contracts/core/contracts/protocol/AssetProxy/ERC20Proxy.sol new file mode 100644 index 000000000..258443bca --- /dev/null +++ b/contracts/core/contracts/protocol/AssetProxy/ERC20Proxy.sol @@ -0,0 +1,184 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "./MixinAuthorizable.sol"; + + +contract ERC20Proxy is + MixinAuthorizable +{ + // Id of this proxy. + bytes4 constant internal PROXY_ID = bytes4(keccak256("ERC20Token(address)")); + + // solhint-disable-next-line payable-fallback + function () + external + { + assembly { + // The first 4 bytes of calldata holds the function selector + let selector := and(calldataload(0), 0xffffffff00000000000000000000000000000000000000000000000000000000) + + // `transferFrom` will be called with the following parameters: + // assetData Encoded byte array. + // from Address to transfer asset from. + // to Address to transfer asset to. + // amount Amount of asset to transfer. + // bytes4(keccak256("transferFrom(bytes,address,address,uint256)")) = 0xa85e59e4 + if eq(selector, 0xa85e59e400000000000000000000000000000000000000000000000000000000) { + + // To lookup a value in a mapping, we load from the storage location keccak256(k, p), + // where k is the key left padded to 32 bytes and p is the storage slot + let start := mload(64) + mstore(start, and(caller, 0xffffffffffffffffffffffffffffffffffffffff)) + mstore(add(start, 32), authorized_slot) + + // Revert if authorized[msg.sender] == false + if iszero(sload(keccak256(start, 64))) { + // Revert with `Error("SENDER_NOT_AUTHORIZED")` + mstore(0, 0x08c379a000000000000000000000000000000000000000000000000000000000) + mstore(32, 0x0000002000000000000000000000000000000000000000000000000000000000) + mstore(64, 0x0000001553454e4445525f4e4f545f415554484f52495a454400000000000000) + mstore(96, 0) + revert(0, 100) + } + + // `transferFrom`. + // The function is marked `external`, so no abi decodeding is done for + // us. Instead, we expect the `calldata` memory to contain the + // following: + // + // | Area | Offset | Length | Contents | + // |----------|--------|---------|-------------------------------------| + // | Header | 0 | 4 | function selector | + // | Params | | 4 * 32 | function parameters: | + // | | 4 | | 1. offset to assetData (*) | + // | | 36 | | 2. from | + // | | 68 | | 3. to | + // | | 100 | | 4. amount | + // | Data | | | assetData: | + // | | 132 | 32 | assetData Length | + // | | 164 | ** | assetData Contents | + // + // (*): offset is computed from start of function parameters, so offset + // by an additional 4 bytes in the calldata. + // + // (**): see table below to compute length of assetData Contents + // + // WARNING: The ABIv2 specification allows additional padding between + // the Params and Data section. This will result in a larger + // offset to assetData. + + // Asset data itself is encoded as follows: + // + // | Area | Offset | Length | Contents | + // |----------|--------|---------|-------------------------------------| + // | Header | 0 | 4 | function selector | + // | Params | | 1 * 32 | function parameters: | + // | | 4 | 12 + 20 | 1. token address | + + // We construct calldata for the `token.transferFrom` ABI. + // The layout of this calldata is in the table below. + // + // | Area | Offset | Length | Contents | + // |----------|--------|---------|-------------------------------------| + // | Header | 0 | 4 | function selector | + // | Params | | 3 * 32 | function parameters: | + // | | 4 | | 1. from | + // | | 36 | | 2. to | + // | | 68 | | 3. amount | + + /////// Read token address from calldata /////// + // * The token address is stored in `assetData`. + // + // * The "offset to assetData" is stored at offset 4 in the calldata (table 1). + // [assetDataOffsetFromParams = calldataload(4)] + // + // * Notes that the "offset to assetData" is relative to the "Params" area of calldata; + // add 4 bytes to account for the length of the "Header" area (table 1). + // [assetDataOffsetFromHeader = assetDataOffsetFromParams + 4] + // + // * The "token address" is offset 32+4=36 bytes into "assetData" (tables 1 & 2). + // [tokenOffset = assetDataOffsetFromHeader + 36 = calldataload(4) + 4 + 36] + let token := calldataload(add(calldataload(4), 40)) + + /////// Setup Header Area /////// + // This area holds the 4-byte `transferFrom` selector. + // Any trailing data in transferFromSelector will be + // overwritten in the next `mstore` call. + mstore(0, 0x23b872dd00000000000000000000000000000000000000000000000000000000) + + /////// Setup Params Area /////// + // We copy the fields `from`, `to` and `amount` in bulk + // from our own calldata to the new calldata. + calldatacopy(4, 36, 96) + + /////// Call `token.transferFrom` using the calldata /////// + let success := call( + gas, // forward all gas + token, // call address of token contract + 0, // don't send any ETH + 0, // pointer to start of input + 100, // length of input + 0, // write output over input + 32 // output size should be 32 bytes + ) + + /////// Check return data. /////// + // If there is no return data, we assume the token incorrectly + // does not return a bool. In this case we expect it to revert + // on failure, which was handled above. + // If the token does return data, we require that it is a single + // nonzero 32 bytes value. + // So the transfer succeeded if the call succeeded and either + // returned nothing, or returned a non-zero 32 byte value. + success := and(success, or( + iszero(returndatasize), + and( + eq(returndatasize, 32), + gt(mload(0), 0) + ) + )) + if success { + return(0, 0) + } + + // Revert with `Error("TRANSFER_FAILED")` + mstore(0, 0x08c379a000000000000000000000000000000000000000000000000000000000) + mstore(32, 0x0000002000000000000000000000000000000000000000000000000000000000) + mstore(64, 0x0000000f5452414e534645525f4641494c454400000000000000000000000000) + mstore(96, 0) + revert(0, 100) + } + + // Revert if undefined function is called + revert(0, 0) + } + } + + /// @dev Gets the proxy id associated with the proxy address. + /// @return Proxy id. + function getProxyId() + external + pure + returns (bytes4) + { + return PROXY_ID; + } +} diff --git a/contracts/core/contracts/protocol/AssetProxy/ERC721Proxy.sol b/contracts/core/contracts/protocol/AssetProxy/ERC721Proxy.sol new file mode 100644 index 000000000..65b664b8b --- /dev/null +++ b/contracts/core/contracts/protocol/AssetProxy/ERC721Proxy.sol @@ -0,0 +1,171 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "./MixinAuthorizable.sol"; + + +contract ERC721Proxy is + MixinAuthorizable +{ + // Id of this proxy. + bytes4 constant internal PROXY_ID = bytes4(keccak256("ERC721Token(address,uint256)")); + + // solhint-disable-next-line payable-fallback + function () + external + { + assembly { + // The first 4 bytes of calldata holds the function selector + let selector := and(calldataload(0), 0xffffffff00000000000000000000000000000000000000000000000000000000) + + // `transferFrom` will be called with the following parameters: + // assetData Encoded byte array. + // from Address to transfer asset from. + // to Address to transfer asset to. + // amount Amount of asset to transfer. + // bytes4(keccak256("transferFrom(bytes,address,address,uint256)")) = 0xa85e59e4 + if eq(selector, 0xa85e59e400000000000000000000000000000000000000000000000000000000) { + + // To lookup a value in a mapping, we load from the storage location keccak256(k, p), + // where k is the key left padded to 32 bytes and p is the storage slot + let start := mload(64) + mstore(start, and(caller, 0xffffffffffffffffffffffffffffffffffffffff)) + mstore(add(start, 32), authorized_slot) + + // Revert if authorized[msg.sender] == false + if iszero(sload(keccak256(start, 64))) { + // Revert with `Error("SENDER_NOT_AUTHORIZED")` + mstore(0, 0x08c379a000000000000000000000000000000000000000000000000000000000) + mstore(32, 0x0000002000000000000000000000000000000000000000000000000000000000) + mstore(64, 0x0000001553454e4445525f4e4f545f415554484f52495a454400000000000000) + mstore(96, 0) + revert(0, 100) + } + + // `transferFrom`. + // The function is marked `external`, so no abi decodeding is done for + // us. Instead, we expect the `calldata` memory to contain the + // following: + // + // | Area | Offset | Length | Contents | + // |----------|--------|---------|-------------------------------------| + // | Header | 0 | 4 | function selector | + // | Params | | 4 * 32 | function parameters: | + // | | 4 | | 1. offset to assetData (*) | + // | | 36 | | 2. from | + // | | 68 | | 3. to | + // | | 100 | | 4. amount | + // | Data | | | assetData: | + // | | 132 | 32 | assetData Length | + // | | 164 | ** | assetData Contents | + // + // (*): offset is computed from start of function parameters, so offset + // by an additional 4 bytes in the calldata. + // + // (**): see table below to compute length of assetData Contents + // + // WARNING: The ABIv2 specification allows additional padding between + // the Params and Data section. This will result in a larger + // offset to assetData. + + // Asset data itself is encoded as follows: + // + // | Area | Offset | Length | Contents | + // |----------|--------|---------|-------------------------------------| + // | Header | 0 | 4 | function selector | + // | Params | | 2 * 32 | function parameters: | + // | | 4 | 12 + 20 | 1. token address | + // | | 36 | | 2. tokenId | + + // We construct calldata for the `token.transferFrom` ABI. + // The layout of this calldata is in the table below. + // + // | Area | Offset | Length | Contents | + // |----------|--------|---------|-------------------------------------| + // | Header | 0 | 4 | function selector | + // | Params | | 3 * 32 | function parameters: | + // | | 4 | | 1. from | + // | | 36 | | 2. to | + // | | 68 | | 3. tokenId | + + // There exists only 1 of each token. + // require(amount == 1, "INVALID_AMOUNT") + if sub(calldataload(100), 1) { + // Revert with `Error("INVALID_AMOUNT")` + mstore(0, 0x08c379a000000000000000000000000000000000000000000000000000000000) + mstore(32, 0x0000002000000000000000000000000000000000000000000000000000000000) + mstore(64, 0x0000000e494e56414c49445f414d4f554e540000000000000000000000000000) + mstore(96, 0) + revert(0, 100) + } + + /////// Setup Header Area /////// + // This area holds the 4-byte `transferFrom` selector. + // Any trailing data in transferFromSelector will be + // overwritten in the next `mstore` call. + mstore(0, 0x23b872dd00000000000000000000000000000000000000000000000000000000) + + /////// Setup Params Area /////// + // We copy the fields `from` and `to` in bulk + // from our own calldata to the new calldata. + calldatacopy(4, 36, 64) + + // Copy `tokenId` field from our own calldata to the new calldata. + let assetDataOffset := calldataload(4) + calldatacopy(68, add(assetDataOffset, 72), 32) + + /////// Call `token.transferFrom` using the calldata /////// + let token := calldataload(add(assetDataOffset, 40)) + let success := call( + gas, // forward all gas + token, // call address of token contract + 0, // don't send any ETH + 0, // pointer to start of input + 100, // length of input + 0, // write output to null + 0 // output size is 0 bytes + ) + if success { + return(0, 0) + } + + // Revert with `Error("TRANSFER_FAILED")` + mstore(0, 0x08c379a000000000000000000000000000000000000000000000000000000000) + mstore(32, 0x0000002000000000000000000000000000000000000000000000000000000000) + mstore(64, 0x0000000f5452414e534645525f4641494c454400000000000000000000000000) + mstore(96, 0) + revert(0, 100) + } + + // Revert if undefined function is called + revert(0, 0) + } + } + + /// @dev Gets the proxy id associated with the proxy address. + /// @return Proxy id. + function getProxyId() + external + pure + returns (bytes4) + { + return PROXY_ID; + } +} diff --git a/contracts/core/contracts/protocol/AssetProxy/MixinAuthorizable.sol b/contracts/core/contracts/protocol/AssetProxy/MixinAuthorizable.sol new file mode 100644 index 000000000..08f9b94dc --- /dev/null +++ b/contracts/core/contracts/protocol/AssetProxy/MixinAuthorizable.sol @@ -0,0 +1,117 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "@0x/contracts-utils/contracts/utils/Ownable/Ownable.sol"; +import "./mixins/MAuthorizable.sol"; + + +contract MixinAuthorizable is + Ownable, + MAuthorizable +{ + /// @dev Only authorized addresses can invoke functions with this modifier. + modifier onlyAuthorized { + require( + authorized[msg.sender], + "SENDER_NOT_AUTHORIZED" + ); + _; + } + + mapping (address => bool) public authorized; + address[] public authorities; + + /// @dev Authorizes an address. + /// @param target Address to authorize. + function addAuthorizedAddress(address target) + external + onlyOwner + { + require( + !authorized[target], + "TARGET_ALREADY_AUTHORIZED" + ); + + authorized[target] = true; + authorities.push(target); + emit AuthorizedAddressAdded(target, msg.sender); + } + + /// @dev Removes authorizion of an address. + /// @param target Address to remove authorization from. + function removeAuthorizedAddress(address target) + external + onlyOwner + { + require( + authorized[target], + "TARGET_NOT_AUTHORIZED" + ); + + delete authorized[target]; + for (uint256 i = 0; i < authorities.length; i++) { + if (authorities[i] == target) { + authorities[i] = authorities[authorities.length - 1]; + authorities.length -= 1; + break; + } + } + emit AuthorizedAddressRemoved(target, msg.sender); + } + + /// @dev Removes authorizion of an address. + /// @param target Address to remove authorization from. + /// @param index Index of target in authorities array. + function removeAuthorizedAddressAtIndex( + address target, + uint256 index + ) + external + onlyOwner + { + require( + authorized[target], + "TARGET_NOT_AUTHORIZED" + ); + require( + index < authorities.length, + "INDEX_OUT_OF_BOUNDS" + ); + require( + authorities[index] == target, + "AUTHORIZED_ADDRESS_MISMATCH" + ); + + delete authorized[target]; + authorities[index] = authorities[authorities.length - 1]; + authorities.length -= 1; + emit AuthorizedAddressRemoved(target, msg.sender); + } + + /// @dev Gets all authorized addresses. + /// @return Array of authorized addresses. + function getAuthorizedAddresses() + external + view + returns (address[] memory) + { + return authorities; + } +} diff --git a/contracts/core/contracts/protocol/AssetProxy/MultiAssetProxy.sol b/contracts/core/contracts/protocol/AssetProxy/MultiAssetProxy.sol new file mode 100644 index 000000000..42231e73b --- /dev/null +++ b/contracts/core/contracts/protocol/AssetProxy/MultiAssetProxy.sol @@ -0,0 +1,300 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "../Exchange/MixinAssetProxyDispatcher.sol"; +import "./MixinAuthorizable.sol"; + + +contract MultiAssetProxy is + MixinAssetProxyDispatcher, + MixinAuthorizable +{ + // Id of this proxy. + bytes4 constant internal PROXY_ID = bytes4(keccak256("MultiAsset(uint256[],bytes[])")); + + // solhint-disable-next-line payable-fallback + function () + external + { + assembly { + // The first 4 bytes of calldata holds the function selector + let selector := and(calldataload(0), 0xffffffff00000000000000000000000000000000000000000000000000000000) + + // `transferFrom` will be called with the following parameters: + // assetData Encoded byte array. + // from Address to transfer asset from. + // to Address to transfer asset to. + // amount Amount of asset to transfer. + // bytes4(keccak256("transferFrom(bytes,address,address,uint256)")) = 0xa85e59e4 + if eq(selector, 0xa85e59e400000000000000000000000000000000000000000000000000000000) { + + // To lookup a value in a mapping, we load from the storage location keccak256(k, p), + // where k is the key left padded to 32 bytes and p is the storage slot + mstore(0, caller) + mstore(32, authorized_slot) + + // Revert if authorized[msg.sender] == false + if iszero(sload(keccak256(0, 64))) { + // Revert with `Error("SENDER_NOT_AUTHORIZED")` + mstore(0, 0x08c379a000000000000000000000000000000000000000000000000000000000) + mstore(32, 0x0000002000000000000000000000000000000000000000000000000000000000) + mstore(64, 0x0000001553454e4445525f4e4f545f415554484f52495a454400000000000000) + mstore(96, 0) + revert(0, 100) + } + + // `transferFrom`. + // The function is marked `external`, so no abi decoding is done for + // us. Instead, we expect the `calldata` memory to contain the + // following: + // + // | Area | Offset | Length | Contents | + // |----------|--------|---------|-------------------------------------| + // | Header | 0 | 4 | function selector | + // | Params | | 4 * 32 | function parameters: | + // | | 4 | | 1. offset to assetData (*) | + // | | 36 | | 2. from | + // | | 68 | | 3. to | + // | | 100 | | 4. amount | + // | Data | | | assetData: | + // | | 132 | 32 | assetData Length | + // | | 164 | ** | assetData Contents | + // + // (*): offset is computed from start of function parameters, so offset + // by an additional 4 bytes in the calldata. + // + // (**): see table below to compute length of assetData Contents + // + // WARNING: The ABIv2 specification allows additional padding between + // the Params and Data section. This will result in a larger + // offset to assetData. + + // Load offset to `assetData` + let assetDataOffset := calldataload(4) + + // Asset data itself is encoded as follows: + // + // | Area | Offset | Length | Contents | + // |----------|-------------|---------|-------------------------------------| + // | Header | 0 | 4 | assetProxyId | + // | Params | | 2 * 32 | function parameters: | + // | | 4 | | 1. offset to amounts (*) | + // | | 36 | | 2. offset to nestedAssetData (*) | + // | Data | | | amounts: | + // | | 68 | 32 | amounts Length | + // | | 100 | a | amounts Contents | + // | | | | nestedAssetData: | + // | | 100 + a | 32 | nestedAssetData Length | + // | | 132 + a | b | nestedAssetData Contents (offsets) | + // | | 132 + a + b | | nestedAssetData[0, ..., len] | + + // In order to find the offset to `amounts`, we must add: + // 4 (function selector) + // + assetDataOffset + // + 32 (assetData len) + // + 4 (assetProxyId) + let amountsOffset := calldataload(add(assetDataOffset, 40)) + + // In order to find the offset to `nestedAssetData`, we must add: + // 4 (function selector) + // + assetDataOffset + // + 32 (assetData len) + // + 4 (assetProxyId) + // + 32 (amounts offset) + let nestedAssetDataOffset := calldataload(add(assetDataOffset, 72)) + + // In order to find the start of the `amounts` contents, we must add: + // 4 (function selector) + // + assetDataOffset + // + 32 (assetData len) + // + 4 (assetProxyId) + // + amountsOffset + // + 32 (amounts len) + let amountsContentsStart := add(assetDataOffset, add(amountsOffset, 72)) + + // Load number of elements in `amounts` + let amountsLen := calldataload(sub(amountsContentsStart, 32)) + + // In order to find the start of the `nestedAssetData` contents, we must add: + // 4 (function selector) + // + assetDataOffset + // + 32 (assetData len) + // + 4 (assetProxyId) + // + nestedAssetDataOffset + // + 32 (nestedAssetData len) + let nestedAssetDataContentsStart := add(assetDataOffset, add(nestedAssetDataOffset, 72)) + + // Load number of elements in `nestedAssetData` + let nestedAssetDataLen := calldataload(sub(nestedAssetDataContentsStart, 32)) + + // Revert if number of elements in `amounts` differs from number of elements in `nestedAssetData` + if iszero(eq(amountsLen, nestedAssetDataLen)) { + // Revert with `Error("LENGTH_MISMATCH")` + mstore(0, 0x08c379a000000000000000000000000000000000000000000000000000000000) + mstore(32, 0x0000002000000000000000000000000000000000000000000000000000000000) + mstore(64, 0x0000000f4c454e4754485f4d49534d4154434800000000000000000000000000) + mstore(96, 0) + revert(0, 100) + } + + // Copy `transferFrom` selector, offset to `assetData`, `from`, and `to` from calldata to memory + calldatacopy( + 0, // memory can safely be overwritten from beginning + 0, // start of calldata + 100 // length of selector (4) and 3 params (32 * 3) + ) + + // Overwrite existing offset to `assetData` with our own + mstore(4, 128) + + // Load `amount` + let amount := calldataload(100) + + // Calculate number of bytes in `amounts` contents + let amountsByteLen := mul(amountsLen, 32) + + // Initialize `assetProxyId` and `assetProxy` to 0 + let assetProxyId := 0 + let assetProxy := 0 + + // Loop through `amounts` and `nestedAssetData`, calling `transferFrom` for each respective element + for {let i := 0} lt(i, amountsByteLen) {i := add(i, 32)} { + + // Calculate the total amount + let amountsElement := calldataload(add(amountsContentsStart, i)) + let totalAmount := mul(amountsElement, amount) + + // Revert if multiplication resulted in an overflow + if iszero(eq(div(totalAmount, amount), amountsElement)) { + // Revert with `Error("UINT256_OVERFLOW")` + mstore(0, 0x08c379a000000000000000000000000000000000000000000000000000000000) + mstore(32, 0x0000002000000000000000000000000000000000000000000000000000000000) + mstore(64, 0x0000001055494e543235365f4f564552464c4f57000000000000000000000000) + mstore(96, 0) + revert(0, 100) + } + + // Write `totalAmount` to memory + mstore(100, totalAmount) + + // Load offset to `nestedAssetData[i]` + let nestedAssetDataElementOffset := calldataload(add(nestedAssetDataContentsStart, i)) + + // In order to find the start of the `nestedAssetData[i]` contents, we must add: + // 4 (function selector) + // + assetDataOffset + // + 32 (assetData len) + // + 4 (assetProxyId) + // + nestedAssetDataOffset + // + 32 (nestedAssetData len) + // + nestedAssetDataElementOffset + // + 32 (nestedAssetDataElement len) + let nestedAssetDataElementContentsStart := add(assetDataOffset, add(nestedAssetDataOffset, add(nestedAssetDataElementOffset, 104))) + + // Load length of `nestedAssetData[i]` + let nestedAssetDataElementLenStart := sub(nestedAssetDataElementContentsStart, 32) + let nestedAssetDataElementLen := calldataload(nestedAssetDataElementLenStart) + + // Revert if the `nestedAssetData` does not contain a 4 byte `assetProxyId` + if lt(nestedAssetDataElementLen, 4) { + // Revert with `Error("LENGTH_GREATER_THAN_3_REQUIRED")` + mstore(0, 0x08c379a000000000000000000000000000000000000000000000000000000000) + mstore(32, 0x0000002000000000000000000000000000000000000000000000000000000000) + mstore(64, 0x0000001e4c454e4754485f475245415445525f5448414e5f335f524551554952) + mstore(96, 0x4544000000000000000000000000000000000000000000000000000000000000) + revert(0, 100) + } + + // Load AssetProxy id + let currentAssetProxyId := and( + calldataload(nestedAssetDataElementContentsStart), + 0xffffffff00000000000000000000000000000000000000000000000000000000 + ) + + // Only load `assetProxy` if `currentAssetProxyId` does not equal `assetProxyId` + // We do not need to check if `currentAssetProxyId` is 0 since `assetProxy` is also initialized to 0 + if iszero(eq(currentAssetProxyId, assetProxyId)) { + // Update `assetProxyId` + assetProxyId := currentAssetProxyId + // To lookup a value in a mapping, we load from the storage location keccak256(k, p), + // where k is the key left padded to 32 bytes and p is the storage slot + mstore(132, assetProxyId) + mstore(164, assetProxies_slot) + assetProxy := sload(keccak256(132, 64)) + } + + // Revert if AssetProxy with given id does not exist + if iszero(assetProxy) { + // Revert with `Error("ASSET_PROXY_DOES_NOT_EXIST")` + mstore(0, 0x08c379a000000000000000000000000000000000000000000000000000000000) + mstore(32, 0x0000002000000000000000000000000000000000000000000000000000000000) + mstore(64, 0x0000001a41535345545f50524f58595f444f45535f4e4f545f45584953540000) + mstore(96, 0) + revert(0, 100) + } + + // Copy `nestedAssetData[i]` from calldata to memory + calldatacopy( + 132, // memory slot after `amounts[i]` + nestedAssetDataElementLenStart, // location of `nestedAssetData[i]` in calldata + add(nestedAssetDataElementLen, 32) // `nestedAssetData[i].length` plus 32 byte length + ) + + // call `assetProxy.transferFrom` + let success := call( + gas, // forward all gas + assetProxy, // call address of asset proxy + 0, // don't send any ETH + 0, // pointer to start of input + add(164, nestedAssetDataElementLen), // length of input + 0, // write output over memory that won't be reused + 0 // don't copy output to memory + ) + + // Revert with reason given by AssetProxy if `transferFrom` call failed + if iszero(success) { + returndatacopy( + 0, // copy to memory at 0 + 0, // copy from return data at 0 + returndatasize() // copy all return data + ) + revert(0, returndatasize()) + } + } + + // Return if no `transferFrom` calls reverted + return(0, 0) + } + + // Revert if undefined function is called + revert(0, 0) + } + } + + /// @dev Gets the proxy id associated with the proxy address. + /// @return Proxy id. + function getProxyId() + external + pure + returns (bytes4) + { + return PROXY_ID; + } +} diff --git a/contracts/core/contracts/protocol/AssetProxy/interfaces/IAssetData.sol b/contracts/core/contracts/protocol/AssetProxy/interfaces/IAssetData.sol new file mode 100644 index 000000000..e2da68919 --- /dev/null +++ b/contracts/core/contracts/protocol/AssetProxy/interfaces/IAssetData.sol @@ -0,0 +1,44 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +// solhint-disable +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + + +// @dev Interface of the asset proxy's assetData. +// The asset proxies take an ABI encoded `bytes assetData` as argument. +// This argument is ABI encoded as one of the methods of this interface. +interface IAssetData { + + function ERC20Token(address tokenContract) + external; + + function ERC721Token( + address tokenContract, + uint256 tokenId + ) + external; + + function MultiAsset( + uint256[] amounts, + bytes[] nestedAssetData + ) + external; + +} diff --git a/contracts/core/contracts/protocol/AssetProxy/interfaces/IAssetProxy.sol b/contracts/core/contracts/protocol/AssetProxy/interfaces/IAssetProxy.sol new file mode 100644 index 000000000..b25d2d75a --- /dev/null +++ b/contracts/core/contracts/protocol/AssetProxy/interfaces/IAssetProxy.sol @@ -0,0 +1,46 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "./IAuthorizable.sol"; + + +contract IAssetProxy is + IAuthorizable +{ + /// @dev Transfers assets. Either succeeds or throws. + /// @param assetData Byte array encoded for the respective asset proxy. + /// @param from Address to transfer asset from. + /// @param to Address to transfer asset to. + /// @param amount Amount of asset to transfer. + function transferFrom( + bytes assetData, + address from, + address to, + uint256 amount + ) + external; + + /// @dev Gets the proxy id associated with the proxy address. + /// @return Proxy id. + function getProxyId() + external + pure + returns (bytes4); +} diff --git a/contracts/core/contracts/protocol/AssetProxy/interfaces/IAuthorizable.sol b/contracts/core/contracts/protocol/AssetProxy/interfaces/IAuthorizable.sol new file mode 100644 index 000000000..96ee05dee --- /dev/null +++ b/contracts/core/contracts/protocol/AssetProxy/interfaces/IAuthorizable.sol @@ -0,0 +1,52 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "@0x/contracts-utils/contracts/utils/Ownable/IOwnable.sol"; + + +contract IAuthorizable is + IOwnable +{ + /// @dev Authorizes an address. + /// @param target Address to authorize. + function addAuthorizedAddress(address target) + external; + + /// @dev Removes authorizion of an address. + /// @param target Address to remove authorization from. + function removeAuthorizedAddress(address target) + external; + + /// @dev Removes authorizion of an address. + /// @param target Address to remove authorization from. + /// @param index Index of target in authorities array. + function removeAuthorizedAddressAtIndex( + address target, + uint256 index + ) + external; + + /// @dev Gets all authorized addresses. + /// @return Array of authorized addresses. + function getAuthorizedAddresses() + external + view + returns (address[] memory); +} diff --git a/contracts/core/contracts/protocol/AssetProxy/mixins/MAuthorizable.sol b/contracts/core/contracts/protocol/AssetProxy/mixins/MAuthorizable.sol new file mode 100644 index 000000000..d63fb7f6d --- /dev/null +++ b/contracts/core/contracts/protocol/AssetProxy/mixins/MAuthorizable.sol @@ -0,0 +1,41 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "../interfaces/IAuthorizable.sol"; + + +contract MAuthorizable is + IAuthorizable +{ + // Event logged when a new address is authorized. + event AuthorizedAddressAdded( + address indexed target, + address indexed caller + ); + + // Event logged when a currently authorized address is unauthorized. + event AuthorizedAddressRemoved( + address indexed target, + address indexed caller + ); + + /// @dev Only authorized addresses can invoke functions with this modifier. + modifier onlyAuthorized { revert(); _; } +} diff --git a/contracts/core/contracts/protocol/AssetProxyOwner/AssetProxyOwner.sol b/contracts/core/contracts/protocol/AssetProxyOwner/AssetProxyOwner.sol new file mode 100644 index 000000000..bfc7b5a66 --- /dev/null +++ b/contracts/core/contracts/protocol/AssetProxyOwner/AssetProxyOwner.sol @@ -0,0 +1,108 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "@0x/contracts-multisig/contracts/multisig/MultiSigWalletWithTimeLock.sol"; +import "@0x/contracts-utils/contracts/utils/LibBytes/LibBytes.sol"; + + +contract AssetProxyOwner is + MultiSigWalletWithTimeLock +{ + using LibBytes for bytes; + + event AssetProxyRegistration(address assetProxyContract, bool isRegistered); + + // Mapping of AssetProxy contract address => + // if this contract is allowed to call the AssetProxy's `removeAuthorizedAddressAtIndex` method without a time lock. + mapping (address => bool) public isAssetProxyRegistered; + + bytes4 constant internal REMOVE_AUTHORIZED_ADDRESS_AT_INDEX_SELECTOR = bytes4(keccak256("removeAuthorizedAddressAtIndex(address,uint256)")); + + /// @dev Function will revert if the transaction does not call `removeAuthorizedAddressAtIndex` + /// on an approved AssetProxy contract. + modifier validRemoveAuthorizedAddressAtIndexTx(uint256 transactionId) { + Transaction storage txn = transactions[transactionId]; + require( + isAssetProxyRegistered[txn.destination], + "UNREGISTERED_ASSET_PROXY" + ); + require( + txn.data.readBytes4(0) == REMOVE_AUTHORIZED_ADDRESS_AT_INDEX_SELECTOR, + "INVALID_FUNCTION_SELECTOR" + ); + _; + } + + /// @dev Contract constructor sets initial owners, required number of confirmations, + /// time lock, and list of AssetProxy addresses. + /// @param _owners List of initial owners. + /// @param _assetProxyContracts Array of AssetProxy contract addresses. + /// @param _required Number of required confirmations. + /// @param _secondsTimeLocked Duration needed after a transaction is confirmed and before it becomes executable, in seconds. + constructor ( + address[] memory _owners, + address[] memory _assetProxyContracts, + uint256 _required, + uint256 _secondsTimeLocked + ) + public + MultiSigWalletWithTimeLock(_owners, _required, _secondsTimeLocked) + { + for (uint256 i = 0; i < _assetProxyContracts.length; i++) { + address assetProxy = _assetProxyContracts[i]; + require( + assetProxy != address(0), + "INVALID_ASSET_PROXY" + ); + isAssetProxyRegistered[assetProxy] = true; + } + } + + /// @dev Registers or deregisters an AssetProxy to be able to execute + /// `removeAuthorizedAddressAtIndex` without a timelock. + /// @param assetProxyContract Address of AssetProxy contract. + /// @param isRegistered Status of approval for AssetProxy contract. + function registerAssetProxy(address assetProxyContract, bool isRegistered) + public + onlyWallet + notNull(assetProxyContract) + { + isAssetProxyRegistered[assetProxyContract] = isRegistered; + emit AssetProxyRegistration(assetProxyContract, isRegistered); + } + + /// @dev Allows execution of `removeAuthorizedAddressAtIndex` without time lock. + /// @param transactionId Transaction ID. + function executeRemoveAuthorizedAddressAtIndex(uint256 transactionId) + public + notExecuted(transactionId) + fullyConfirmed(transactionId) + validRemoveAuthorizedAddressAtIndexTx(transactionId) + { + Transaction storage txn = transactions[transactionId]; + txn.executed = true; + if (external_call(txn.destination, txn.value, txn.data.length, txn.data)) { + emit Execution(transactionId); + } else { + emit ExecutionFailure(transactionId); + txn.executed = false; + } + } +} diff --git a/contracts/core/contracts/protocol/Exchange/Exchange.sol b/contracts/core/contracts/protocol/Exchange/Exchange.sol new file mode 100644 index 000000000..65ca742ea --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/Exchange.sol @@ -0,0 +1,53 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "@0x/contracts-libs/contracts/libs/LibConstants.sol"; +import "./MixinExchangeCore.sol"; +import "./MixinSignatureValidator.sol"; +import "./MixinWrapperFunctions.sol"; +import "./MixinAssetProxyDispatcher.sol"; +import "./MixinTransactions.sol"; +import "./MixinMatchOrders.sol"; + + +// solhint-disable no-empty-blocks +contract Exchange is + MixinExchangeCore, + MixinMatchOrders, + MixinSignatureValidator, + MixinTransactions, + MixinAssetProxyDispatcher, + MixinWrapperFunctions +{ + string constant public VERSION = "2.0.1-alpha"; + + // Mixins are instantiated in the order they are inherited + constructor (bytes memory _zrxAssetData) + public + LibConstants(_zrxAssetData) // @TODO: Remove when we deploy. + MixinExchangeCore() + MixinMatchOrders() + MixinSignatureValidator() + MixinTransactions() + MixinAssetProxyDispatcher() + MixinWrapperFunctions() + {} +} diff --git a/contracts/core/contracts/protocol/Exchange/MixinAssetProxyDispatcher.sol b/contracts/core/contracts/protocol/Exchange/MixinAssetProxyDispatcher.sol new file mode 100644 index 000000000..02aeb4a13 --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/MixinAssetProxyDispatcher.sol @@ -0,0 +1,174 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "@0x/contracts-utils/contracts/utils/Ownable/Ownable.sol"; +import "./mixins/MAssetProxyDispatcher.sol"; +import "../AssetProxy/interfaces/IAssetProxy.sol"; + + +contract MixinAssetProxyDispatcher is + Ownable, + MAssetProxyDispatcher +{ + // Mapping from Asset Proxy Id's to their respective Asset Proxy + mapping (bytes4 => IAssetProxy) public assetProxies; + + /// @dev Registers an asset proxy to its asset proxy id. + /// Once an asset proxy is registered, it cannot be unregistered. + /// @param assetProxy Address of new asset proxy to register. + function registerAssetProxy(address assetProxy) + external + onlyOwner + { + IAssetProxy assetProxyContract = IAssetProxy(assetProxy); + + // Ensure that no asset proxy exists with current id. + bytes4 assetProxyId = assetProxyContract.getProxyId(); + address currentAssetProxy = assetProxies[assetProxyId]; + require( + currentAssetProxy == address(0), + "ASSET_PROXY_ALREADY_EXISTS" + ); + + // Add asset proxy and log registration. + assetProxies[assetProxyId] = assetProxyContract; + emit AssetProxyRegistered( + assetProxyId, + assetProxy + ); + } + + /// @dev Gets an asset proxy. + /// @param assetProxyId Id of the asset proxy. + /// @return The asset proxy registered to assetProxyId. Returns 0x0 if no proxy is registered. + function getAssetProxy(bytes4 assetProxyId) + external + view + returns (address) + { + return assetProxies[assetProxyId]; + } + + /// @dev Forwards arguments to assetProxy and calls `transferFrom`. Either succeeds or throws. + /// @param assetData Byte array encoded for the asset. + /// @param from Address to transfer token from. + /// @param to Address to transfer token to. + /// @param amount Amount of token to transfer. + function dispatchTransferFrom( + bytes memory assetData, + address from, + address to, + uint256 amount + ) + internal + { + // Do nothing if no amount should be transferred. + if (amount > 0 && from != to) { + // Ensure assetData length is valid + require( + assetData.length > 3, + "LENGTH_GREATER_THAN_3_REQUIRED" + ); + + // Lookup assetProxy. We do not use `LibBytes.readBytes4` for gas efficiency reasons. + bytes4 assetProxyId; + assembly { + assetProxyId := and(mload( + add(assetData, 32)), + 0xFFFFFFFF00000000000000000000000000000000000000000000000000000000 + ) + } + address assetProxy = assetProxies[assetProxyId]; + + // Ensure that assetProxy exists + require( + assetProxy != address(0), + "ASSET_PROXY_DOES_NOT_EXIST" + ); + + // We construct calldata for the `assetProxy.transferFrom` ABI. + // The layout of this calldata is in the table below. + // + // | Area | Offset | Length | Contents | + // | -------- |--------|---------|-------------------------------------------- | + // | Header | 0 | 4 | function selector | + // | Params | | 4 * 32 | function parameters: | + // | | 4 | | 1. offset to assetData (*) | + // | | 36 | | 2. from | + // | | 68 | | 3. to | + // | | 100 | | 4. amount | + // | Data | | | assetData: | + // | | 132 | 32 | assetData Length | + // | | 164 | ** | assetData Contents | + + assembly { + /////// Setup State /////// + // `cdStart` is the start of the calldata for `assetProxy.transferFrom` (equal to free memory ptr). + let cdStart := mload(64) + // `dataAreaLength` is the total number of words needed to store `assetData` + // As-per the ABI spec, this value is padded up to the nearest multiple of 32, + // and includes 32-bytes for length. + let dataAreaLength := and(add(mload(assetData), 63), 0xFFFFFFFFFFFE0) + // `cdEnd` is the end of the calldata for `assetProxy.transferFrom`. + let cdEnd := add(cdStart, add(132, dataAreaLength)) + + + /////// Setup Header Area /////// + // This area holds the 4-byte `transferFromSelector`. + // bytes4(keccak256("transferFrom(bytes,address,address,uint256)")) = 0xa85e59e4 + mstore(cdStart, 0xa85e59e400000000000000000000000000000000000000000000000000000000) + + /////// Setup Params Area /////// + // Each parameter is padded to 32-bytes. The entire Params Area is 128 bytes. + // Notes: + // 1. The offset to `assetData` is the length of the Params Area (128 bytes). + // 2. A 20-byte mask is applied to addresses to zero-out the unused bytes. + mstore(add(cdStart, 4), 128) + mstore(add(cdStart, 36), and(from, 0xffffffffffffffffffffffffffffffffffffffff)) + mstore(add(cdStart, 68), and(to, 0xffffffffffffffffffffffffffffffffffffffff)) + mstore(add(cdStart, 100), amount) + + /////// Setup Data Area /////// + // This area holds `assetData`. + let dataArea := add(cdStart, 132) + // solhint-disable-next-line no-empty-blocks + for {} lt(dataArea, cdEnd) {} { + mstore(dataArea, mload(assetData)) + dataArea := add(dataArea, 32) + assetData := add(assetData, 32) + } + + /////// Call `assetProxy.transferFrom` using the constructed calldata /////// + let success := call( + gas, // forward all gas + assetProxy, // call address of asset proxy + 0, // don't send any ETH + cdStart, // pointer to start of input + sub(cdEnd, cdStart), // length of input + cdStart, // write output over input + 512 // reserve 512 bytes for output + ) + if iszero(success) { + revert(cdStart, returndatasize()) + } + } + } + } +} diff --git a/contracts/core/contracts/protocol/Exchange/MixinExchangeCore.sol b/contracts/core/contracts/protocol/Exchange/MixinExchangeCore.sol new file mode 100644 index 000000000..68d6a3897 --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/MixinExchangeCore.sol @@ -0,0 +1,529 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "@0x/contracts-utils/contracts/utils/ReentrancyGuard/ReentrancyGuard.sol"; +import "@0x/contracts-libs/contracts/libs/LibConstants.sol"; +import "@0x/contracts-libs/contracts/libs/LibFillResults.sol"; +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; +import "@0x/contracts-libs/contracts/libs/LibMath.sol"; +import "./mixins/MExchangeCore.sol"; +import "./mixins/MSignatureValidator.sol"; +import "./mixins/MTransactions.sol"; +import "./mixins/MAssetProxyDispatcher.sol"; + + +contract MixinExchangeCore is + ReentrancyGuard, + LibConstants, + LibMath, + LibOrder, + LibFillResults, + MAssetProxyDispatcher, + MExchangeCore, + MSignatureValidator, + MTransactions +{ + // Mapping of orderHash => amount of takerAsset already bought by maker + mapping (bytes32 => uint256) public filled; + + // Mapping of orderHash => cancelled + mapping (bytes32 => bool) public cancelled; + + // Mapping of makerAddress => senderAddress => lowest salt an order can have in order to be fillable + // Orders with specified senderAddress and with a salt less than their epoch are considered cancelled + mapping (address => mapping (address => uint256)) public orderEpoch; + + /// @dev Cancels all orders created by makerAddress with a salt less than or equal to the targetOrderEpoch + /// and senderAddress equal to msg.sender (or null address if msg.sender == makerAddress). + /// @param targetOrderEpoch Orders created with a salt less or equal to this value will be cancelled. + function cancelOrdersUpTo(uint256 targetOrderEpoch) + external + nonReentrant + { + address makerAddress = getCurrentContextAddress(); + // If this function is called via `executeTransaction`, we only update the orderEpoch for the makerAddress/msg.sender combination. + // This allows external filter contracts to add rules to how orders are cancelled via this function. + address senderAddress = makerAddress == msg.sender ? address(0) : msg.sender; + + // orderEpoch is initialized to 0, so to cancelUpTo we need salt + 1 + uint256 newOrderEpoch = targetOrderEpoch + 1; + uint256 oldOrderEpoch = orderEpoch[makerAddress][senderAddress]; + + // Ensure orderEpoch is monotonically increasing + require( + newOrderEpoch > oldOrderEpoch, + "INVALID_NEW_ORDER_EPOCH" + ); + + // Update orderEpoch + orderEpoch[makerAddress][senderAddress] = newOrderEpoch; + emit CancelUpTo( + makerAddress, + senderAddress, + newOrderEpoch + ); + } + + /// @dev Fills the input order. + /// @param order Order struct containing order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param signature Proof that order has been created by maker. + /// @return Amounts filled and fees paid by maker and taker. + function fillOrder( + Order memory order, + uint256 takerAssetFillAmount, + bytes memory signature + ) + public + nonReentrant + returns (FillResults memory fillResults) + { + fillResults = fillOrderInternal( + order, + takerAssetFillAmount, + signature + ); + return fillResults; + } + + /// @dev After calling, the order can not be filled anymore. + /// Throws if order is invalid or sender does not have permission to cancel. + /// @param order Order to cancel. Order must be OrderStatus.FILLABLE. + function cancelOrder(Order memory order) + public + nonReentrant + { + cancelOrderInternal(order); + } + + /// @dev Gets information about an order: status, hash, and amount filled. + /// @param order Order to gather information on. + /// @return OrderInfo Information about the order and its state. + /// See LibOrder.OrderInfo for a complete description. + function getOrderInfo(Order memory order) + public + view + returns (OrderInfo memory orderInfo) + { + // Compute the order hash + orderInfo.orderHash = getOrderHash(order); + + // Fetch filled amount + orderInfo.orderTakerAssetFilledAmount = filled[orderInfo.orderHash]; + + // If order.makerAssetAmount is zero, we also reject the order. + // While the Exchange contract handles them correctly, they create + // edge cases in the supporting infrastructure because they have + // an 'infinite' price when computed by a simple division. + if (order.makerAssetAmount == 0) { + orderInfo.orderStatus = uint8(OrderStatus.INVALID_MAKER_ASSET_AMOUNT); + return orderInfo; + } + + // If order.takerAssetAmount is zero, then the order will always + // be considered filled because 0 == takerAssetAmount == orderTakerAssetFilledAmount + // Instead of distinguishing between unfilled and filled zero taker + // amount orders, we choose not to support them. + if (order.takerAssetAmount == 0) { + orderInfo.orderStatus = uint8(OrderStatus.INVALID_TAKER_ASSET_AMOUNT); + return orderInfo; + } + + // Validate order availability + if (orderInfo.orderTakerAssetFilledAmount >= order.takerAssetAmount) { + orderInfo.orderStatus = uint8(OrderStatus.FULLY_FILLED); + return orderInfo; + } + + // Validate order expiration + // solhint-disable-next-line not-rely-on-time + if (block.timestamp >= order.expirationTimeSeconds) { + orderInfo.orderStatus = uint8(OrderStatus.EXPIRED); + return orderInfo; + } + + // Check if order has been cancelled + if (cancelled[orderInfo.orderHash]) { + orderInfo.orderStatus = uint8(OrderStatus.CANCELLED); + return orderInfo; + } + if (orderEpoch[order.makerAddress][order.senderAddress] > order.salt) { + orderInfo.orderStatus = uint8(OrderStatus.CANCELLED); + return orderInfo; + } + + // All other statuses are ruled out: order is Fillable + orderInfo.orderStatus = uint8(OrderStatus.FILLABLE); + return orderInfo; + } + + /// @dev Fills the input order. + /// @param order Order struct containing order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param signature Proof that order has been created by maker. + /// @return Amounts filled and fees paid by maker and taker. + function fillOrderInternal( + Order memory order, + uint256 takerAssetFillAmount, + bytes memory signature + ) + internal + returns (FillResults memory fillResults) + { + // Fetch order info + OrderInfo memory orderInfo = getOrderInfo(order); + + // Fetch taker address + address takerAddress = getCurrentContextAddress(); + + // Assert that the order is fillable by taker + assertFillableOrder( + order, + orderInfo, + takerAddress, + signature + ); + + // Get amount of takerAsset to fill + uint256 remainingTakerAssetAmount = safeSub(order.takerAssetAmount, orderInfo.orderTakerAssetFilledAmount); + uint256 takerAssetFilledAmount = min256(takerAssetFillAmount, remainingTakerAssetAmount); + + // Validate context + assertValidFill( + order, + orderInfo, + takerAssetFillAmount, + takerAssetFilledAmount, + fillResults.makerAssetFilledAmount + ); + + // Compute proportional fill amounts + fillResults = calculateFillResults(order, takerAssetFilledAmount); + + // Update exchange internal state + updateFilledState( + order, + takerAddress, + orderInfo.orderHash, + orderInfo.orderTakerAssetFilledAmount, + fillResults + ); + + // Settle order + settleOrder( + order, + takerAddress, + fillResults + ); + + return fillResults; + } + + /// @dev After calling, the order can not be filled anymore. + /// Throws if order is invalid or sender does not have permission to cancel. + /// @param order Order to cancel. Order must be OrderStatus.FILLABLE. + function cancelOrderInternal(Order memory order) + internal + { + // Fetch current order status + OrderInfo memory orderInfo = getOrderInfo(order); + + // Validate context + assertValidCancel(order, orderInfo); + + // Perform cancel + updateCancelledState(order, orderInfo.orderHash); + } + + /// @dev Updates state with results of a fill order. + /// @param order that was filled. + /// @param takerAddress Address of taker who filled the order. + /// @param orderTakerAssetFilledAmount Amount of order already filled. + function updateFilledState( + Order memory order, + address takerAddress, + bytes32 orderHash, + uint256 orderTakerAssetFilledAmount, + FillResults memory fillResults + ) + internal + { + // Update state + filled[orderHash] = safeAdd(orderTakerAssetFilledAmount, fillResults.takerAssetFilledAmount); + + // Log order + emit Fill( + order.makerAddress, + order.feeRecipientAddress, + takerAddress, + msg.sender, + fillResults.makerAssetFilledAmount, + fillResults.takerAssetFilledAmount, + fillResults.makerFeePaid, + fillResults.takerFeePaid, + orderHash, + order.makerAssetData, + order.takerAssetData + ); + } + + /// @dev Updates state with results of cancelling an order. + /// State is only updated if the order is currently fillable. + /// Otherwise, updating state would have no effect. + /// @param order that was cancelled. + /// @param orderHash Hash of order that was cancelled. + function updateCancelledState( + Order memory order, + bytes32 orderHash + ) + internal + { + // Perform cancel + cancelled[orderHash] = true; + + // Log cancel + emit Cancel( + order.makerAddress, + order.feeRecipientAddress, + msg.sender, + orderHash, + order.makerAssetData, + order.takerAssetData + ); + } + + /// @dev Validates context for fillOrder. Succeeds or throws. + /// @param order to be filled. + /// @param orderInfo OrderStatus, orderHash, and amount already filled of order. + /// @param takerAddress Address of order taker. + /// @param signature Proof that the orders was created by its maker. + function assertFillableOrder( + Order memory order, + OrderInfo memory orderInfo, + address takerAddress, + bytes memory signature + ) + internal + view + { + // An order can only be filled if its status is FILLABLE. + require( + orderInfo.orderStatus == uint8(OrderStatus.FILLABLE), + "ORDER_UNFILLABLE" + ); + + // Validate sender is allowed to fill this order + if (order.senderAddress != address(0)) { + require( + order.senderAddress == msg.sender, + "INVALID_SENDER" + ); + } + + // Validate taker is allowed to fill this order + if (order.takerAddress != address(0)) { + require( + order.takerAddress == takerAddress, + "INVALID_TAKER" + ); + } + + // Validate Maker signature (check only if first time seen) + if (orderInfo.orderTakerAssetFilledAmount == 0) { + require( + isValidSignature( + orderInfo.orderHash, + order.makerAddress, + signature + ), + "INVALID_ORDER_SIGNATURE" + ); + } + } + + /// @dev Validates context for fillOrder. Succeeds or throws. + /// @param order to be filled. + /// @param orderInfo OrderStatus, orderHash, and amount already filled of order. + /// @param takerAssetFillAmount Desired amount of order to fill by taker. + /// @param takerAssetFilledAmount Amount of takerAsset that will be filled. + /// @param makerAssetFilledAmount Amount of makerAsset that will be transfered. + function assertValidFill( + Order memory order, + OrderInfo memory orderInfo, + uint256 takerAssetFillAmount, // TODO: use FillResults + uint256 takerAssetFilledAmount, + uint256 makerAssetFilledAmount + ) + internal + view + { + // Revert if fill amount is invalid + // TODO: reconsider necessity for v2.1 + require( + takerAssetFillAmount != 0, + "INVALID_TAKER_AMOUNT" + ); + + // Make sure taker does not pay more than desired amount + // NOTE: This assertion should never fail, it is here + // as an extra defence against potential bugs. + require( + takerAssetFilledAmount <= takerAssetFillAmount, + "TAKER_OVERPAY" + ); + + // Make sure order is not overfilled + // NOTE: This assertion should never fail, it is here + // as an extra defence against potential bugs. + require( + safeAdd(orderInfo.orderTakerAssetFilledAmount, takerAssetFilledAmount) <= order.takerAssetAmount, + "ORDER_OVERFILL" + ); + + // Make sure order is filled at acceptable price. + // The order has an implied price from the makers perspective: + // order price = order.makerAssetAmount / order.takerAssetAmount + // i.e. the number of makerAsset maker is paying per takerAsset. The + // maker is guaranteed to get this price or a better (lower) one. The + // actual price maker is getting in this fill is: + // fill price = makerAssetFilledAmount / takerAssetFilledAmount + // We need `fill price <= order price` for the fill to be fair to maker. + // This amounts to: + // makerAssetFilledAmount order.makerAssetAmount + // ------------------------ <= ----------------------- + // takerAssetFilledAmount order.takerAssetAmount + // or, equivalently: + // makerAssetFilledAmount * order.takerAssetAmount <= + // order.makerAssetAmount * takerAssetFilledAmount + // NOTE: This assertion should never fail, it is here + // as an extra defence against potential bugs. + require( + safeMul(makerAssetFilledAmount, order.takerAssetAmount) + <= + safeMul(order.makerAssetAmount, takerAssetFilledAmount), + "INVALID_FILL_PRICE" + ); + } + + /// @dev Validates context for cancelOrder. Succeeds or throws. + /// @param order to be cancelled. + /// @param orderInfo OrderStatus, orderHash, and amount already filled of order. + function assertValidCancel( + Order memory order, + OrderInfo memory orderInfo + ) + internal + view + { + // Ensure order is valid + // An order can only be cancelled if its status is FILLABLE. + require( + orderInfo.orderStatus == uint8(OrderStatus.FILLABLE), + "ORDER_UNFILLABLE" + ); + + // Validate sender is allowed to cancel this order + if (order.senderAddress != address(0)) { + require( + order.senderAddress == msg.sender, + "INVALID_SENDER" + ); + } + + // Validate transaction signed by maker + address makerAddress = getCurrentContextAddress(); + require( + order.makerAddress == makerAddress, + "INVALID_MAKER" + ); + } + + /// @dev Calculates amounts filled and fees paid by maker and taker. + /// @param order to be filled. + /// @param takerAssetFilledAmount Amount of takerAsset that will be filled. + /// @return fillResults Amounts filled and fees paid by maker and taker. + function calculateFillResults( + Order memory order, + uint256 takerAssetFilledAmount + ) + internal + pure + returns (FillResults memory fillResults) + { + // Compute proportional transfer amounts + fillResults.takerAssetFilledAmount = takerAssetFilledAmount; + fillResults.makerAssetFilledAmount = safeGetPartialAmountFloor( + takerAssetFilledAmount, + order.takerAssetAmount, + order.makerAssetAmount + ); + fillResults.makerFeePaid = safeGetPartialAmountFloor( + fillResults.makerAssetFilledAmount, + order.makerAssetAmount, + order.makerFee + ); + fillResults.takerFeePaid = safeGetPartialAmountFloor( + takerAssetFilledAmount, + order.takerAssetAmount, + order.takerFee + ); + + return fillResults; + } + + /// @dev Settles an order by transferring assets between counterparties. + /// @param order Order struct containing order specifications. + /// @param takerAddress Address selling takerAsset and buying makerAsset. + /// @param fillResults Amounts to be filled and fees paid by maker and taker. + function settleOrder( + LibOrder.Order memory order, + address takerAddress, + LibFillResults.FillResults memory fillResults + ) + private + { + bytes memory zrxAssetData = ZRX_ASSET_DATA; + dispatchTransferFrom( + order.makerAssetData, + order.makerAddress, + takerAddress, + fillResults.makerAssetFilledAmount + ); + dispatchTransferFrom( + order.takerAssetData, + takerAddress, + order.makerAddress, + fillResults.takerAssetFilledAmount + ); + dispatchTransferFrom( + zrxAssetData, + order.makerAddress, + order.feeRecipientAddress, + fillResults.makerFeePaid + ); + dispatchTransferFrom( + zrxAssetData, + takerAddress, + order.feeRecipientAddress, + fillResults.takerFeePaid + ); + } +} diff --git a/contracts/core/contracts/protocol/Exchange/MixinMatchOrders.sol b/contracts/core/contracts/protocol/Exchange/MixinMatchOrders.sol new file mode 100644 index 000000000..fc6d73482 --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/MixinMatchOrders.sol @@ -0,0 +1,335 @@ +/* + Copyright 2018 ZeroEx Intl. + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + http://www.apache.org/licenses/LICENSE-2.0 + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "@0x/contracts-utils/contracts/utils/ReentrancyGuard/ReentrancyGuard.sol"; +import "@0x/contracts-libs/contracts/libs/LibConstants.sol"; +import "@0x/contracts-libs/contracts/libs/LibMath.sol"; +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; +import "@0x/contracts-libs/contracts/libs/LibFillResults.sol"; +import "./mixins/MExchangeCore.sol"; +import "./mixins/MMatchOrders.sol"; +import "./mixins/MTransactions.sol"; +import "./mixins/MAssetProxyDispatcher.sol"; + + +contract MixinMatchOrders is + ReentrancyGuard, + LibConstants, + LibMath, + MAssetProxyDispatcher, + MExchangeCore, + MMatchOrders, + MTransactions +{ + /// @dev Match two complementary orders that have a profitable spread. + /// Each order is filled at their respective price point. However, the calculations are + /// carried out as though the orders are both being filled at the right order's price point. + /// The profit made by the left order goes to the taker (who matched the two orders). + /// @param leftOrder First order to match. + /// @param rightOrder Second order to match. + /// @param leftSignature Proof that order was created by the left maker. + /// @param rightSignature Proof that order was created by the right maker. + /// @return matchedFillResults Amounts filled and fees paid by maker and taker of matched orders. + function matchOrders( + LibOrder.Order memory leftOrder, + LibOrder.Order memory rightOrder, + bytes memory leftSignature, + bytes memory rightSignature + ) + public + nonReentrant + returns (LibFillResults.MatchedFillResults memory matchedFillResults) + { + // We assume that rightOrder.takerAssetData == leftOrder.makerAssetData and rightOrder.makerAssetData == leftOrder.takerAssetData. + // If this assumption isn't true, the match will fail at signature validation. + rightOrder.makerAssetData = leftOrder.takerAssetData; + rightOrder.takerAssetData = leftOrder.makerAssetData; + + // Get left & right order info + LibOrder.OrderInfo memory leftOrderInfo = getOrderInfo(leftOrder); + LibOrder.OrderInfo memory rightOrderInfo = getOrderInfo(rightOrder); + + // Fetch taker address + address takerAddress = getCurrentContextAddress(); + + // Either our context is valid or we revert + assertFillableOrder( + leftOrder, + leftOrderInfo, + takerAddress, + leftSignature + ); + assertFillableOrder( + rightOrder, + rightOrderInfo, + takerAddress, + rightSignature + ); + assertValidMatch(leftOrder, rightOrder); + + // Compute proportional fill amounts + matchedFillResults = calculateMatchedFillResults( + leftOrder, + rightOrder, + leftOrderInfo.orderTakerAssetFilledAmount, + rightOrderInfo.orderTakerAssetFilledAmount + ); + + // Validate fill contexts + assertValidFill( + leftOrder, + leftOrderInfo, + matchedFillResults.left.takerAssetFilledAmount, + matchedFillResults.left.takerAssetFilledAmount, + matchedFillResults.left.makerAssetFilledAmount + ); + assertValidFill( + rightOrder, + rightOrderInfo, + matchedFillResults.right.takerAssetFilledAmount, + matchedFillResults.right.takerAssetFilledAmount, + matchedFillResults.right.makerAssetFilledAmount + ); + + // Update exchange state + updateFilledState( + leftOrder, + takerAddress, + leftOrderInfo.orderHash, + leftOrderInfo.orderTakerAssetFilledAmount, + matchedFillResults.left + ); + updateFilledState( + rightOrder, + takerAddress, + rightOrderInfo.orderHash, + rightOrderInfo.orderTakerAssetFilledAmount, + matchedFillResults.right + ); + + // Settle matched orders. Succeeds or throws. + settleMatchedOrders( + leftOrder, + rightOrder, + takerAddress, + matchedFillResults + ); + + return matchedFillResults; + } + + /// @dev Validates context for matchOrders. Succeeds or throws. + /// @param leftOrder First order to match. + /// @param rightOrder Second order to match. + function assertValidMatch( + LibOrder.Order memory leftOrder, + LibOrder.Order memory rightOrder + ) + internal + pure + { + // Make sure there is a profitable spread. + // There is a profitable spread iff the cost per unit bought (OrderA.MakerAmount/OrderA.TakerAmount) for each order is greater + // than the profit per unit sold of the matched order (OrderB.TakerAmount/OrderB.MakerAmount). + // This is satisfied by the equations below: + // <leftOrder.makerAssetAmount> / <leftOrder.takerAssetAmount> >= <rightOrder.takerAssetAmount> / <rightOrder.makerAssetAmount> + // AND + // <rightOrder.makerAssetAmount> / <rightOrder.takerAssetAmount> >= <leftOrder.takerAssetAmount> / <leftOrder.makerAssetAmount> + // These equations can be combined to get the following: + require( + safeMul(leftOrder.makerAssetAmount, rightOrder.makerAssetAmount) >= + safeMul(leftOrder.takerAssetAmount, rightOrder.takerAssetAmount), + "NEGATIVE_SPREAD_REQUIRED" + ); + } + + /// @dev Calculates fill amounts for the matched orders. + /// Each order is filled at their respective price point. However, the calculations are + /// carried out as though the orders are both being filled at the right order's price point. + /// The profit made by the leftOrder order goes to the taker (who matched the two orders). + /// @param leftOrder First order to match. + /// @param rightOrder Second order to match. + /// @param leftOrderTakerAssetFilledAmount Amount of left order already filled. + /// @param rightOrderTakerAssetFilledAmount Amount of right order already filled. + /// @param matchedFillResults Amounts to fill and fees to pay by maker and taker of matched orders. + function calculateMatchedFillResults( + LibOrder.Order memory leftOrder, + LibOrder.Order memory rightOrder, + uint256 leftOrderTakerAssetFilledAmount, + uint256 rightOrderTakerAssetFilledAmount + ) + internal + pure + returns (LibFillResults.MatchedFillResults memory matchedFillResults) + { + // Derive maker asset amounts for left & right orders, given store taker assert amounts + uint256 leftTakerAssetAmountRemaining = safeSub(leftOrder.takerAssetAmount, leftOrderTakerAssetFilledAmount); + uint256 leftMakerAssetAmountRemaining = safeGetPartialAmountFloor( + leftOrder.makerAssetAmount, + leftOrder.takerAssetAmount, + leftTakerAssetAmountRemaining + ); + uint256 rightTakerAssetAmountRemaining = safeSub(rightOrder.takerAssetAmount, rightOrderTakerAssetFilledAmount); + uint256 rightMakerAssetAmountRemaining = safeGetPartialAmountFloor( + rightOrder.makerAssetAmount, + rightOrder.takerAssetAmount, + rightTakerAssetAmountRemaining + ); + + // Calculate fill results for maker and taker assets: at least one order will be fully filled. + // The maximum amount the left maker can buy is `leftTakerAssetAmountRemaining` + // The maximum amount the right maker can sell is `rightMakerAssetAmountRemaining` + // We have two distinct cases for calculating the fill results: + // Case 1. + // If the left maker can buy more than the right maker can sell, then only the right order is fully filled. + // If the left maker can buy exactly what the right maker can sell, then both orders are fully filled. + // Case 2. + // If the left maker cannot buy more than the right maker can sell, then only the left order is fully filled. + if (leftTakerAssetAmountRemaining >= rightMakerAssetAmountRemaining) { + // Case 1: Right order is fully filled + matchedFillResults.right.makerAssetFilledAmount = rightMakerAssetAmountRemaining; + matchedFillResults.right.takerAssetFilledAmount = rightTakerAssetAmountRemaining; + matchedFillResults.left.takerAssetFilledAmount = matchedFillResults.right.makerAssetFilledAmount; + // Round down to ensure the maker's exchange rate does not exceed the price specified by the order. + // We favor the maker when the exchange rate must be rounded. + matchedFillResults.left.makerAssetFilledAmount = safeGetPartialAmountFloor( + leftOrder.makerAssetAmount, + leftOrder.takerAssetAmount, + matchedFillResults.left.takerAssetFilledAmount + ); + } else { + // Case 2: Left order is fully filled + matchedFillResults.left.makerAssetFilledAmount = leftMakerAssetAmountRemaining; + matchedFillResults.left.takerAssetFilledAmount = leftTakerAssetAmountRemaining; + matchedFillResults.right.makerAssetFilledAmount = matchedFillResults.left.takerAssetFilledAmount; + // Round up to ensure the maker's exchange rate does not exceed the price specified by the order. + // We favor the maker when the exchange rate must be rounded. + matchedFillResults.right.takerAssetFilledAmount = safeGetPartialAmountCeil( + rightOrder.takerAssetAmount, + rightOrder.makerAssetAmount, + matchedFillResults.right.makerAssetFilledAmount + ); + } + + // Calculate amount given to taker + matchedFillResults.leftMakerAssetSpreadAmount = safeSub( + matchedFillResults.left.makerAssetFilledAmount, + matchedFillResults.right.takerAssetFilledAmount + ); + + // Compute fees for left order + matchedFillResults.left.makerFeePaid = safeGetPartialAmountFloor( + matchedFillResults.left.makerAssetFilledAmount, + leftOrder.makerAssetAmount, + leftOrder.makerFee + ); + matchedFillResults.left.takerFeePaid = safeGetPartialAmountFloor( + matchedFillResults.left.takerAssetFilledAmount, + leftOrder.takerAssetAmount, + leftOrder.takerFee + ); + + // Compute fees for right order + matchedFillResults.right.makerFeePaid = safeGetPartialAmountFloor( + matchedFillResults.right.makerAssetFilledAmount, + rightOrder.makerAssetAmount, + rightOrder.makerFee + ); + matchedFillResults.right.takerFeePaid = safeGetPartialAmountFloor( + matchedFillResults.right.takerAssetFilledAmount, + rightOrder.takerAssetAmount, + rightOrder.takerFee + ); + + // Return fill results + return matchedFillResults; + } + + /// @dev Settles matched order by transferring appropriate funds between order makers, taker, and fee recipient. + /// @param leftOrder First matched order. + /// @param rightOrder Second matched order. + /// @param takerAddress Address that matched the orders. The taker receives the spread between orders as profit. + /// @param matchedFillResults Struct holding amounts to transfer between makers, taker, and fee recipients. + function settleMatchedOrders( + LibOrder.Order memory leftOrder, + LibOrder.Order memory rightOrder, + address takerAddress, + LibFillResults.MatchedFillResults memory matchedFillResults + ) + private + { + bytes memory zrxAssetData = ZRX_ASSET_DATA; + // Order makers and taker + dispatchTransferFrom( + leftOrder.makerAssetData, + leftOrder.makerAddress, + rightOrder.makerAddress, + matchedFillResults.right.takerAssetFilledAmount + ); + dispatchTransferFrom( + rightOrder.makerAssetData, + rightOrder.makerAddress, + leftOrder.makerAddress, + matchedFillResults.left.takerAssetFilledAmount + ); + dispatchTransferFrom( + leftOrder.makerAssetData, + leftOrder.makerAddress, + takerAddress, + matchedFillResults.leftMakerAssetSpreadAmount + ); + + // Maker fees + dispatchTransferFrom( + zrxAssetData, + leftOrder.makerAddress, + leftOrder.feeRecipientAddress, + matchedFillResults.left.makerFeePaid + ); + dispatchTransferFrom( + zrxAssetData, + rightOrder.makerAddress, + rightOrder.feeRecipientAddress, + matchedFillResults.right.makerFeePaid + ); + + // Taker fees + if (leftOrder.feeRecipientAddress == rightOrder.feeRecipientAddress) { + dispatchTransferFrom( + zrxAssetData, + takerAddress, + leftOrder.feeRecipientAddress, + safeAdd( + matchedFillResults.left.takerFeePaid, + matchedFillResults.right.takerFeePaid + ) + ); + } else { + dispatchTransferFrom( + zrxAssetData, + takerAddress, + leftOrder.feeRecipientAddress, + matchedFillResults.left.takerFeePaid + ); + dispatchTransferFrom( + zrxAssetData, + takerAddress, + rightOrder.feeRecipientAddress, + matchedFillResults.right.takerFeePaid + ); + } + } +} diff --git a/contracts/core/contracts/protocol/Exchange/MixinSignatureValidator.sol b/contracts/core/contracts/protocol/Exchange/MixinSignatureValidator.sol new file mode 100644 index 000000000..711535aa8 --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/MixinSignatureValidator.sol @@ -0,0 +1,324 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "@0x/contracts-utils/contracts/utils/LibBytes/LibBytes.sol"; +import "@0x/contracts-utils/contracts/utils/ReentrancyGuard/ReentrancyGuard.sol"; +import "./mixins/MSignatureValidator.sol"; +import "./mixins/MTransactions.sol"; +import "./interfaces/IWallet.sol"; +import "./interfaces/IValidator.sol"; + + +contract MixinSignatureValidator is + ReentrancyGuard, + MSignatureValidator, + MTransactions +{ + using LibBytes for bytes; + + // Mapping of hash => signer => signed + mapping (bytes32 => mapping (address => bool)) public preSigned; + + // Mapping of signer => validator => approved + mapping (address => mapping (address => bool)) public allowedValidators; + + /// @dev Approves a hash on-chain using any valid signature type. + /// After presigning a hash, the preSign signature type will become valid for that hash and signer. + /// @param signerAddress Address that should have signed the given hash. + /// @param signature Proof that the hash has been signed by signer. + function preSign( + bytes32 hash, + address signerAddress, + bytes signature + ) + external + { + if (signerAddress != msg.sender) { + require( + isValidSignature( + hash, + signerAddress, + signature + ), + "INVALID_SIGNATURE" + ); + } + preSigned[hash][signerAddress] = true; + } + + /// @dev Approves/unnapproves a Validator contract to verify signatures on signer's behalf. + /// @param validatorAddress Address of Validator contract. + /// @param approval Approval or disapproval of Validator contract. + function setSignatureValidatorApproval( + address validatorAddress, + bool approval + ) + external + nonReentrant + { + address signerAddress = getCurrentContextAddress(); + allowedValidators[signerAddress][validatorAddress] = approval; + emit SignatureValidatorApproval( + signerAddress, + validatorAddress, + approval + ); + } + + /// @dev Verifies that a hash has been signed by the given signer. + /// @param hash Any 32 byte hash. + /// @param signerAddress Address that should have signed the given hash. + /// @param signature Proof that the hash has been signed by signer. + /// @return True if the address recovered from the provided signature matches the input signer address. + function isValidSignature( + bytes32 hash, + address signerAddress, + bytes memory signature + ) + public + view + returns (bool isValid) + { + require( + signature.length > 0, + "LENGTH_GREATER_THAN_0_REQUIRED" + ); + + // Pop last byte off of signature byte array. + uint8 signatureTypeRaw = uint8(signature.popLastByte()); + + // Ensure signature is supported + require( + signatureTypeRaw < uint8(SignatureType.NSignatureTypes), + "SIGNATURE_UNSUPPORTED" + ); + + SignatureType signatureType = SignatureType(signatureTypeRaw); + + // Variables are not scoped in Solidity. + uint8 v; + bytes32 r; + bytes32 s; + address recovered; + + // Always illegal signature. + // This is always an implicit option since a signer can create a + // signature array with invalid type or length. We may as well make + // it an explicit option. This aids testing and analysis. It is + // also the initialization value for the enum type. + if (signatureType == SignatureType.Illegal) { + revert("SIGNATURE_ILLEGAL"); + + // Always invalid signature. + // Like Illegal, this is always implicitly available and therefore + // offered explicitly. It can be implicitly created by providing + // a correctly formatted but incorrect signature. + } else if (signatureType == SignatureType.Invalid) { + require( + signature.length == 0, + "LENGTH_0_REQUIRED" + ); + isValid = false; + return isValid; + + // Signature using EIP712 + } else if (signatureType == SignatureType.EIP712) { + require( + signature.length == 65, + "LENGTH_65_REQUIRED" + ); + v = uint8(signature[0]); + r = signature.readBytes32(1); + s = signature.readBytes32(33); + recovered = ecrecover( + hash, + v, + r, + s + ); + isValid = signerAddress == recovered; + return isValid; + + // Signed using web3.eth_sign + } else if (signatureType == SignatureType.EthSign) { + require( + signature.length == 65, + "LENGTH_65_REQUIRED" + ); + v = uint8(signature[0]); + r = signature.readBytes32(1); + s = signature.readBytes32(33); + recovered = ecrecover( + keccak256(abi.encodePacked( + "\x19Ethereum Signed Message:\n32", + hash + )), + v, + r, + s + ); + isValid = signerAddress == recovered; + return isValid; + + // Signature verified by wallet contract. + // If used with an order, the maker of the order is the wallet contract. + } else if (signatureType == SignatureType.Wallet) { + isValid = isValidWalletSignature( + hash, + signerAddress, + signature + ); + return isValid; + + // Signature verified by validator contract. + // If used with an order, the maker of the order can still be an EOA. + // A signature using this type should be encoded as: + // | Offset | Length | Contents | + // | 0x00 | x | Signature to validate | + // | 0x00 + x | 20 | Address of validator contract | + // | 0x14 + x | 1 | Signature type is always "\x06" | + } else if (signatureType == SignatureType.Validator) { + // Pop last 20 bytes off of signature byte array. + address validatorAddress = signature.popLast20Bytes(); + + // Ensure signer has approved validator. + if (!allowedValidators[signerAddress][validatorAddress]) { + return false; + } + isValid = isValidValidatorSignature( + validatorAddress, + hash, + signerAddress, + signature + ); + return isValid; + + // Signer signed hash previously using the preSign function. + } else if (signatureType == SignatureType.PreSigned) { + isValid = preSigned[hash][signerAddress]; + return isValid; + } + + // Anything else is illegal (We do not return false because + // the signature may actually be valid, just not in a format + // that we currently support. In this case returning false + // may lead the caller to incorrectly believe that the + // signature was invalid.) + revert("SIGNATURE_UNSUPPORTED"); + } + + /// @dev Verifies signature using logic defined by Wallet contract. + /// @param hash Any 32 byte hash. + /// @param walletAddress Address that should have signed the given hash + /// and defines its own signature verification method. + /// @param signature Proof that the hash has been signed by signer. + /// @return True if signature is valid for given wallet.. + function isValidWalletSignature( + bytes32 hash, + address walletAddress, + bytes signature + ) + internal + view + returns (bool isValid) + { + bytes memory callData = abi.encodeWithSelector( + IWallet(walletAddress).isValidSignature.selector, + hash, + signature + ); + assembly { + let cdStart := add(callData, 32) + let success := staticcall( + gas, // forward all gas + walletAddress, // address of Wallet contract + cdStart, // pointer to start of input + mload(callData), // length of input + cdStart, // write output over input + 32 // output size is 32 bytes + ) + + switch success + case 0 { + // Revert with `Error("WALLET_ERROR")` + mstore(0, 0x08c379a000000000000000000000000000000000000000000000000000000000) + mstore(32, 0x0000002000000000000000000000000000000000000000000000000000000000) + mstore(64, 0x0000000c57414c4c45545f4552524f5200000000000000000000000000000000) + mstore(96, 0) + revert(0, 100) + } + case 1 { + // Signature is valid if call did not revert and returned true + isValid := mload(cdStart) + } + } + return isValid; + } + + /// @dev Verifies signature using logic defined by Validator contract. + /// @param validatorAddress Address of validator contract. + /// @param hash Any 32 byte hash. + /// @param signerAddress Address that should have signed the given hash. + /// @param signature Proof that the hash has been signed by signer. + /// @return True if the address recovered from the provided signature matches the input signer address. + function isValidValidatorSignature( + address validatorAddress, + bytes32 hash, + address signerAddress, + bytes signature + ) + internal + view + returns (bool isValid) + { + bytes memory callData = abi.encodeWithSelector( + IValidator(signerAddress).isValidSignature.selector, + hash, + signerAddress, + signature + ); + assembly { + let cdStart := add(callData, 32) + let success := staticcall( + gas, // forward all gas + validatorAddress, // address of Validator contract + cdStart, // pointer to start of input + mload(callData), // length of input + cdStart, // write output over input + 32 // output size is 32 bytes + ) + + switch success + case 0 { + // Revert with `Error("VALIDATOR_ERROR")` + mstore(0, 0x08c379a000000000000000000000000000000000000000000000000000000000) + mstore(32, 0x0000002000000000000000000000000000000000000000000000000000000000) + mstore(64, 0x0000000f56414c494441544f525f4552524f5200000000000000000000000000) + mstore(96, 0) + revert(0, 100) + } + case 1 { + // Signature is valid if call did not revert and returned true + isValid := mload(cdStart) + } + } + return isValid; + } +} diff --git a/contracts/core/contracts/protocol/Exchange/MixinTransactions.sol b/contracts/core/contracts/protocol/Exchange/MixinTransactions.sol new file mode 100644 index 000000000..87c614382 --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/MixinTransactions.sol @@ -0,0 +1,152 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ +pragma solidity 0.4.24; + +import "@0x/contracts-libs/contracts/libs/LibExchangeErrors.sol"; +import "./mixins/MSignatureValidator.sol"; +import "./mixins/MTransactions.sol"; +import "@0x/contracts-libs/contracts/libs/LibEIP712.sol"; + + +contract MixinTransactions is + LibEIP712, + MSignatureValidator, + MTransactions +{ + // Mapping of transaction hash => executed + // This prevents transactions from being executed more than once. + mapping (bytes32 => bool) public transactions; + + // Address of current transaction signer + address public currentContextAddress; + + /// @dev Executes an exchange method call in the context of signer. + /// @param salt Arbitrary number to ensure uniqueness of transaction hash. + /// @param signerAddress Address of transaction signer. + /// @param data AbiV2 encoded calldata. + /// @param signature Proof of signer transaction by signer. + function executeTransaction( + uint256 salt, + address signerAddress, + bytes data, + bytes signature + ) + external + { + // Prevent reentrancy + require( + currentContextAddress == address(0), + "REENTRANCY_ILLEGAL" + ); + + bytes32 transactionHash = hashEIP712Message(hashZeroExTransaction( + salt, + signerAddress, + data + )); + + // Validate transaction has not been executed + require( + !transactions[transactionHash], + "INVALID_TX_HASH" + ); + + // Transaction always valid if signer is sender of transaction + if (signerAddress != msg.sender) { + // Validate signature + require( + isValidSignature( + transactionHash, + signerAddress, + signature + ), + "INVALID_TX_SIGNATURE" + ); + + // Set the current transaction signer + currentContextAddress = signerAddress; + } + + // Execute transaction + transactions[transactionHash] = true; + require( + address(this).delegatecall(data), + "FAILED_EXECUTION" + ); + + // Reset current transaction signer if it was previously updated + if (signerAddress != msg.sender) { + currentContextAddress = address(0); + } + } + + /// @dev Calculates EIP712 hash of the Transaction. + /// @param salt Arbitrary number to ensure uniqueness of transaction hash. + /// @param signerAddress Address of transaction signer. + /// @param data AbiV2 encoded calldata. + /// @return EIP712 hash of the Transaction. + function hashZeroExTransaction( + uint256 salt, + address signerAddress, + bytes memory data + ) + internal + pure + returns (bytes32 result) + { + bytes32 schemaHash = EIP712_ZEROEX_TRANSACTION_SCHEMA_HASH; + bytes32 dataHash = keccak256(data); + + // Assembly for more efficiently computing: + // keccak256(abi.encodePacked( + // EIP712_ZEROEX_TRANSACTION_SCHEMA_HASH, + // salt, + // bytes32(signerAddress), + // keccak256(data) + // )); + + assembly { + // Load free memory pointer + let memPtr := mload(64) + + mstore(memPtr, schemaHash) // hash of schema + mstore(add(memPtr, 32), salt) // salt + mstore(add(memPtr, 64), and(signerAddress, 0xffffffffffffffffffffffffffffffffffffffff)) // signerAddress + mstore(add(memPtr, 96), dataHash) // hash of data + + // Compute hash + result := keccak256(memPtr, 128) + } + return result; + } + + /// @dev The current function will be called in the context of this address (either 0x transaction signer or `msg.sender`). + /// If calling a fill function, this address will represent the taker. + /// If calling a cancel function, this address will represent the maker. + /// @return Signer of 0x transaction if entry point is `executeTransaction`. + /// `msg.sender` if entry point is any other function. + function getCurrentContextAddress() + internal + view + returns (address) + { + address currentContextAddress_ = currentContextAddress; + address contextAddress = currentContextAddress_ == address(0) ? msg.sender : currentContextAddress_; + return contextAddress; + } +} diff --git a/contracts/core/contracts/protocol/Exchange/MixinWrapperFunctions.sol b/contracts/core/contracts/protocol/Exchange/MixinWrapperFunctions.sol new file mode 100644 index 000000000..2d43432ff --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/MixinWrapperFunctions.sol @@ -0,0 +1,426 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "@0x/contracts-utils/contracts/utils/ReentrancyGuard/ReentrancyGuard.sol"; +import "@0x/contracts-libs/contracts/libs/LibMath.sol"; +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; +import "@0x/contracts-libs/contracts/libs/LibFillResults.sol"; +import "@0x/contracts-libs/contracts/libs/LibAbiEncoder.sol"; +import "./mixins/MExchangeCore.sol"; +import "./mixins/MWrapperFunctions.sol"; + + +contract MixinWrapperFunctions is + ReentrancyGuard, + LibMath, + LibFillResults, + LibAbiEncoder, + MExchangeCore, + MWrapperFunctions +{ + /// @dev Fills the input order. Reverts if exact takerAssetFillAmount not filled. + /// @param order Order struct containing order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param signature Proof that order has been created by maker. + function fillOrKillOrder( + LibOrder.Order memory order, + uint256 takerAssetFillAmount, + bytes memory signature + ) + public + nonReentrant + returns (FillResults memory fillResults) + { + fillResults = fillOrKillOrderInternal( + order, + takerAssetFillAmount, + signature + ); + return fillResults; + } + + /// @dev Fills the input order. + /// Returns false if the transaction would otherwise revert. + /// @param order Order struct containing order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param signature Proof that order has been created by maker. + /// @return Amounts filled and fees paid by maker and taker. + function fillOrderNoThrow( + LibOrder.Order memory order, + uint256 takerAssetFillAmount, + bytes memory signature + ) + public + returns (FillResults memory fillResults) + { + // ABI encode calldata for `fillOrder` + bytes memory fillOrderCalldata = abiEncodeFillOrder( + order, + takerAssetFillAmount, + signature + ); + + // Delegate to `fillOrder` and handle any exceptions gracefully + assembly { + let success := delegatecall( + gas, // forward all gas + address, // call address of this contract + add(fillOrderCalldata, 32), // pointer to start of input (skip array length in first 32 bytes) + mload(fillOrderCalldata), // length of input + fillOrderCalldata, // write output over input + 128 // output size is 128 bytes + ) + if success { + mstore(fillResults, mload(fillOrderCalldata)) + mstore(add(fillResults, 32), mload(add(fillOrderCalldata, 32))) + mstore(add(fillResults, 64), mload(add(fillOrderCalldata, 64))) + mstore(add(fillResults, 96), mload(add(fillOrderCalldata, 96))) + } + } + // fillResults values will be 0 by default if call was unsuccessful + return fillResults; + } + + /// @dev Synchronously executes multiple calls of fillOrder. + /// @param orders Array of order specifications. + /// @param takerAssetFillAmounts Array of desired amounts of takerAsset to sell in orders. + /// @param signatures Proofs that orders have been created by makers. + /// @return Amounts filled and fees paid by makers and taker. + /// NOTE: makerAssetFilledAmount and takerAssetFilledAmount may include amounts filled of different assets. + function batchFillOrders( + LibOrder.Order[] memory orders, + uint256[] memory takerAssetFillAmounts, + bytes[] memory signatures + ) + public + nonReentrant + returns (FillResults memory totalFillResults) + { + uint256 ordersLength = orders.length; + for (uint256 i = 0; i != ordersLength; i++) { + FillResults memory singleFillResults = fillOrderInternal( + orders[i], + takerAssetFillAmounts[i], + signatures[i] + ); + addFillResults(totalFillResults, singleFillResults); + } + return totalFillResults; + } + + /// @dev Synchronously executes multiple calls of fillOrKill. + /// @param orders Array of order specifications. + /// @param takerAssetFillAmounts Array of desired amounts of takerAsset to sell in orders. + /// @param signatures Proofs that orders have been created by makers. + /// @return Amounts filled and fees paid by makers and taker. + /// NOTE: makerAssetFilledAmount and takerAssetFilledAmount may include amounts filled of different assets. + function batchFillOrKillOrders( + LibOrder.Order[] memory orders, + uint256[] memory takerAssetFillAmounts, + bytes[] memory signatures + ) + public + nonReentrant + returns (FillResults memory totalFillResults) + { + uint256 ordersLength = orders.length; + for (uint256 i = 0; i != ordersLength; i++) { + FillResults memory singleFillResults = fillOrKillOrderInternal( + orders[i], + takerAssetFillAmounts[i], + signatures[i] + ); + addFillResults(totalFillResults, singleFillResults); + } + return totalFillResults; + } + + /// @dev Fills an order with specified parameters and ECDSA signature. + /// Returns false if the transaction would otherwise revert. + /// @param orders Array of order specifications. + /// @param takerAssetFillAmounts Array of desired amounts of takerAsset to sell in orders. + /// @param signatures Proofs that orders have been created by makers. + /// @return Amounts filled and fees paid by makers and taker. + /// NOTE: makerAssetFilledAmount and takerAssetFilledAmount may include amounts filled of different assets. + function batchFillOrdersNoThrow( + LibOrder.Order[] memory orders, + uint256[] memory takerAssetFillAmounts, + bytes[] memory signatures + ) + public + returns (FillResults memory totalFillResults) + { + uint256 ordersLength = orders.length; + for (uint256 i = 0; i != ordersLength; i++) { + FillResults memory singleFillResults = fillOrderNoThrow( + orders[i], + takerAssetFillAmounts[i], + signatures[i] + ); + addFillResults(totalFillResults, singleFillResults); + } + return totalFillResults; + } + + /// @dev Synchronously executes multiple calls of fillOrder until total amount of takerAsset is sold by taker. + /// @param orders Array of order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param signatures Proofs that orders have been created by makers. + /// @return Amounts filled and fees paid by makers and taker. + function marketSellOrders( + LibOrder.Order[] memory orders, + uint256 takerAssetFillAmount, + bytes[] memory signatures + ) + public + nonReentrant + returns (FillResults memory totalFillResults) + { + bytes memory takerAssetData = orders[0].takerAssetData; + + uint256 ordersLength = orders.length; + for (uint256 i = 0; i != ordersLength; i++) { + + // We assume that asset being sold by taker is the same for each order. + // Rather than passing this in as calldata, we use the takerAssetData from the first order in all later orders. + orders[i].takerAssetData = takerAssetData; + + // Calculate the remaining amount of takerAsset to sell + uint256 remainingTakerAssetFillAmount = safeSub(takerAssetFillAmount, totalFillResults.takerAssetFilledAmount); + + // Attempt to sell the remaining amount of takerAsset + FillResults memory singleFillResults = fillOrderInternal( + orders[i], + remainingTakerAssetFillAmount, + signatures[i] + ); + + // Update amounts filled and fees paid by maker and taker + addFillResults(totalFillResults, singleFillResults); + + // Stop execution if the entire amount of takerAsset has been sold + if (totalFillResults.takerAssetFilledAmount >= takerAssetFillAmount) { + break; + } + } + return totalFillResults; + } + + /// @dev Synchronously executes multiple calls of fillOrder until total amount of takerAsset is sold by taker. + /// Returns false if the transaction would otherwise revert. + /// @param orders Array of order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param signatures Proofs that orders have been signed by makers. + /// @return Amounts filled and fees paid by makers and taker. + function marketSellOrdersNoThrow( + LibOrder.Order[] memory orders, + uint256 takerAssetFillAmount, + bytes[] memory signatures + ) + public + returns (FillResults memory totalFillResults) + { + bytes memory takerAssetData = orders[0].takerAssetData; + + uint256 ordersLength = orders.length; + for (uint256 i = 0; i != ordersLength; i++) { + + // We assume that asset being sold by taker is the same for each order. + // Rather than passing this in as calldata, we use the takerAssetData from the first order in all later orders. + orders[i].takerAssetData = takerAssetData; + + // Calculate the remaining amount of takerAsset to sell + uint256 remainingTakerAssetFillAmount = safeSub(takerAssetFillAmount, totalFillResults.takerAssetFilledAmount); + + // Attempt to sell the remaining amount of takerAsset + FillResults memory singleFillResults = fillOrderNoThrow( + orders[i], + remainingTakerAssetFillAmount, + signatures[i] + ); + + // Update amounts filled and fees paid by maker and taker + addFillResults(totalFillResults, singleFillResults); + + // Stop execution if the entire amount of takerAsset has been sold + if (totalFillResults.takerAssetFilledAmount >= takerAssetFillAmount) { + break; + } + } + return totalFillResults; + } + + /// @dev Synchronously executes multiple calls of fillOrder until total amount of makerAsset is bought by taker. + /// @param orders Array of order specifications. + /// @param makerAssetFillAmount Desired amount of makerAsset to buy. + /// @param signatures Proofs that orders have been signed by makers. + /// @return Amounts filled and fees paid by makers and taker. + function marketBuyOrders( + LibOrder.Order[] memory orders, + uint256 makerAssetFillAmount, + bytes[] memory signatures + ) + public + nonReentrant + returns (FillResults memory totalFillResults) + { + bytes memory makerAssetData = orders[0].makerAssetData; + + uint256 ordersLength = orders.length; + for (uint256 i = 0; i != ordersLength; i++) { + + // We assume that asset being bought by taker is the same for each order. + // Rather than passing this in as calldata, we copy the makerAssetData from the first order onto all later orders. + orders[i].makerAssetData = makerAssetData; + + // Calculate the remaining amount of makerAsset to buy + uint256 remainingMakerAssetFillAmount = safeSub(makerAssetFillAmount, totalFillResults.makerAssetFilledAmount); + + // Convert the remaining amount of makerAsset to buy into remaining amount + // of takerAsset to sell, assuming entire amount can be sold in the current order + uint256 remainingTakerAssetFillAmount = getPartialAmountFloor( + orders[i].takerAssetAmount, + orders[i].makerAssetAmount, + remainingMakerAssetFillAmount + ); + + // Attempt to sell the remaining amount of takerAsset + FillResults memory singleFillResults = fillOrderInternal( + orders[i], + remainingTakerAssetFillAmount, + signatures[i] + ); + + // Update amounts filled and fees paid by maker and taker + addFillResults(totalFillResults, singleFillResults); + + // Stop execution if the entire amount of makerAsset has been bought + if (totalFillResults.makerAssetFilledAmount >= makerAssetFillAmount) { + break; + } + } + return totalFillResults; + } + + /// @dev Synchronously executes multiple fill orders in a single transaction until total amount is bought by taker. + /// Returns false if the transaction would otherwise revert. + /// @param orders Array of order specifications. + /// @param makerAssetFillAmount Desired amount of makerAsset to buy. + /// @param signatures Proofs that orders have been signed by makers. + /// @return Amounts filled and fees paid by makers and taker. + function marketBuyOrdersNoThrow( + LibOrder.Order[] memory orders, + uint256 makerAssetFillAmount, + bytes[] memory signatures + ) + public + returns (FillResults memory totalFillResults) + { + bytes memory makerAssetData = orders[0].makerAssetData; + + uint256 ordersLength = orders.length; + for (uint256 i = 0; i != ordersLength; i++) { + + // We assume that asset being bought by taker is the same for each order. + // Rather than passing this in as calldata, we copy the makerAssetData from the first order onto all later orders. + orders[i].makerAssetData = makerAssetData; + + // Calculate the remaining amount of makerAsset to buy + uint256 remainingMakerAssetFillAmount = safeSub(makerAssetFillAmount, totalFillResults.makerAssetFilledAmount); + + // Convert the remaining amount of makerAsset to buy into remaining amount + // of takerAsset to sell, assuming entire amount can be sold in the current order + uint256 remainingTakerAssetFillAmount = getPartialAmountFloor( + orders[i].takerAssetAmount, + orders[i].makerAssetAmount, + remainingMakerAssetFillAmount + ); + + // Attempt to sell the remaining amount of takerAsset + FillResults memory singleFillResults = fillOrderNoThrow( + orders[i], + remainingTakerAssetFillAmount, + signatures[i] + ); + + // Update amounts filled and fees paid by maker and taker + addFillResults(totalFillResults, singleFillResults); + + // Stop execution if the entire amount of makerAsset has been bought + if (totalFillResults.makerAssetFilledAmount >= makerAssetFillAmount) { + break; + } + } + return totalFillResults; + } + + /// @dev Synchronously cancels multiple orders in a single transaction. + /// @param orders Array of order specifications. + function batchCancelOrders(LibOrder.Order[] memory orders) + public + nonReentrant + { + uint256 ordersLength = orders.length; + for (uint256 i = 0; i != ordersLength; i++) { + cancelOrderInternal(orders[i]); + } + } + + /// @dev Fetches information for all passed in orders. + /// @param orders Array of order specifications. + /// @return Array of OrderInfo instances that correspond to each order. + function getOrdersInfo(LibOrder.Order[] memory orders) + public + view + returns (LibOrder.OrderInfo[] memory) + { + uint256 ordersLength = orders.length; + LibOrder.OrderInfo[] memory ordersInfo = new LibOrder.OrderInfo[](ordersLength); + for (uint256 i = 0; i != ordersLength; i++) { + ordersInfo[i] = getOrderInfo(orders[i]); + } + return ordersInfo; + } + + /// @dev Fills the input order. Reverts if exact takerAssetFillAmount not filled. + /// @param order Order struct containing order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param signature Proof that order has been created by maker. + function fillOrKillOrderInternal( + LibOrder.Order memory order, + uint256 takerAssetFillAmount, + bytes memory signature + ) + internal + returns (FillResults memory fillResults) + { + fillResults = fillOrderInternal( + order, + takerAssetFillAmount, + signature + ); + require( + fillResults.takerAssetFilledAmount == takerAssetFillAmount, + "COMPLETE_FILL_FAILED" + ); + return fillResults; + } +} diff --git a/contracts/core/contracts/protocol/Exchange/interfaces/IAssetProxyDispatcher.sol b/contracts/core/contracts/protocol/Exchange/interfaces/IAssetProxyDispatcher.sol new file mode 100644 index 000000000..8db8d6f6c --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/interfaces/IAssetProxyDispatcher.sol @@ -0,0 +1,37 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + + +contract IAssetProxyDispatcher { + + /// @dev Registers an asset proxy to its asset proxy id. + /// Once an asset proxy is registered, it cannot be unregistered. + /// @param assetProxy Address of new asset proxy to register. + function registerAssetProxy(address assetProxy) + external; + + /// @dev Gets an asset proxy. + /// @param assetProxyId Id of the asset proxy. + /// @return The asset proxy registered to assetProxyId. Returns 0x0 if no proxy is registered. + function getAssetProxy(bytes4 assetProxyId) + external + view + returns (address); +} diff --git a/contracts/core/contracts/protocol/Exchange/interfaces/IExchange.sol b/contracts/core/contracts/protocol/Exchange/interfaces/IExchange.sol new file mode 100644 index 000000000..b92abba04 --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/interfaces/IExchange.sol @@ -0,0 +1,38 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "./IExchangeCore.sol"; +import "./IMatchOrders.sol"; +import "./ISignatureValidator.sol"; +import "./ITransactions.sol"; +import "./IAssetProxyDispatcher.sol"; +import "./IWrapperFunctions.sol"; + + +// solhint-disable no-empty-blocks +contract IExchange is + IExchangeCore, + IMatchOrders, + ISignatureValidator, + ITransactions, + IAssetProxyDispatcher, + IWrapperFunctions +{} diff --git a/contracts/core/contracts/protocol/Exchange/interfaces/IExchangeCore.sol b/contracts/core/contracts/protocol/Exchange/interfaces/IExchangeCore.sol new file mode 100644 index 000000000..0da73529c --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/interfaces/IExchangeCore.sol @@ -0,0 +1,60 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; +import "@0x/contracts-libs/contracts/libs/LibFillResults.sol"; + + +contract IExchangeCore { + + /// @dev Cancels all orders created by makerAddress with a salt less than or equal to the targetOrderEpoch + /// and senderAddress equal to msg.sender (or null address if msg.sender == makerAddress). + /// @param targetOrderEpoch Orders created with a salt less or equal to this value will be cancelled. + function cancelOrdersUpTo(uint256 targetOrderEpoch) + external; + + /// @dev Fills the input order. + /// @param order Order struct containing order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param signature Proof that order has been created by maker. + /// @return Amounts filled and fees paid by maker and taker. + function fillOrder( + LibOrder.Order memory order, + uint256 takerAssetFillAmount, + bytes memory signature + ) + public + returns (LibFillResults.FillResults memory fillResults); + + /// @dev After calling, the order can not be filled anymore. + /// @param order Order struct containing order specifications. + function cancelOrder(LibOrder.Order memory order) + public; + + /// @dev Gets information about an order: status, hash, and amount filled. + /// @param order Order to gather information on. + /// @return OrderInfo Information about the order and its state. + /// See LibOrder.OrderInfo for a complete description. + function getOrderInfo(LibOrder.Order memory order) + public + view + returns (LibOrder.OrderInfo memory orderInfo); +} diff --git a/contracts/core/contracts/protocol/Exchange/interfaces/IMatchOrders.sol b/contracts/core/contracts/protocol/Exchange/interfaces/IMatchOrders.sol new file mode 100644 index 000000000..b88e158c3 --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/interfaces/IMatchOrders.sol @@ -0,0 +1,44 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; +import "@0x/contracts-libs/contracts/libs/LibFillResults.sol"; + + +contract IMatchOrders { + + /// @dev Match two complementary orders that have a profitable spread. + /// Each order is filled at their respective price point. However, the calculations are + /// carried out as though the orders are both being filled at the right order's price point. + /// The profit made by the left order goes to the taker (who matched the two orders). + /// @param leftOrder First order to match. + /// @param rightOrder Second order to match. + /// @param leftSignature Proof that order was created by the left maker. + /// @param rightSignature Proof that order was created by the right maker. + /// @return matchedFillResults Amounts filled and fees paid by maker and taker of matched orders. + function matchOrders( + LibOrder.Order memory leftOrder, + LibOrder.Order memory rightOrder, + bytes memory leftSignature, + bytes memory rightSignature + ) + public + returns (LibFillResults.MatchedFillResults memory matchedFillResults); +} diff --git a/contracts/core/contracts/protocol/Exchange/interfaces/ISignatureValidator.sol b/contracts/core/contracts/protocol/Exchange/interfaces/ISignatureValidator.sol new file mode 100644 index 000000000..1fd0eccf0 --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/interfaces/ISignatureValidator.sol @@ -0,0 +1,57 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + + +contract ISignatureValidator { + + /// @dev Approves a hash on-chain using any valid signature type. + /// After presigning a hash, the preSign signature type will become valid for that hash and signer. + /// @param signerAddress Address that should have signed the given hash. + /// @param signature Proof that the hash has been signed by signer. + function preSign( + bytes32 hash, + address signerAddress, + bytes signature + ) + external; + + /// @dev Approves/unnapproves a Validator contract to verify signatures on signer's behalf. + /// @param validatorAddress Address of Validator contract. + /// @param approval Approval or disapproval of Validator contract. + function setSignatureValidatorApproval( + address validatorAddress, + bool approval + ) + external; + + /// @dev Verifies that a signature is valid. + /// @param hash Message hash that is signed. + /// @param signerAddress Address of signer. + /// @param signature Proof of signing. + /// @return Validity of order signature. + function isValidSignature( + bytes32 hash, + address signerAddress, + bytes memory signature + ) + public + view + returns (bool isValid); +} diff --git a/contracts/core/contracts/protocol/Exchange/interfaces/ITransactions.sol b/contracts/core/contracts/protocol/Exchange/interfaces/ITransactions.sol new file mode 100644 index 000000000..4446c55ce --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/interfaces/ITransactions.sol @@ -0,0 +1,35 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ +pragma solidity 0.4.24; + + +contract ITransactions { + + /// @dev Executes an exchange method call in the context of signer. + /// @param salt Arbitrary number to ensure uniqueness of transaction hash. + /// @param signerAddress Address of transaction signer. + /// @param data AbiV2 encoded calldata. + /// @param signature Proof of signer transaction by signer. + function executeTransaction( + uint256 salt, + address signerAddress, + bytes data, + bytes signature + ) + external; +} diff --git a/contracts/core/contracts/protocol/Exchange/interfaces/IValidator.sol b/contracts/core/contracts/protocol/Exchange/interfaces/IValidator.sol new file mode 100644 index 000000000..2dd69100c --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/interfaces/IValidator.sol @@ -0,0 +1,37 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + + +contract IValidator { + + /// @dev Verifies that a signature is valid. + /// @param hash Message hash that is signed. + /// @param signerAddress Address that should have signed the given hash. + /// @param signature Proof of signing. + /// @return Validity of order signature. + function isValidSignature( + bytes32 hash, + address signerAddress, + bytes signature + ) + external + view + returns (bool isValid); +} diff --git a/contracts/core/contracts/protocol/Exchange/interfaces/IWallet.sol b/contracts/core/contracts/protocol/Exchange/interfaces/IWallet.sol new file mode 100644 index 000000000..c97161ca6 --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/interfaces/IWallet.sol @@ -0,0 +1,35 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + + +contract IWallet { + + /// @dev Verifies that a signature is valid. + /// @param hash Message hash that is signed. + /// @param signature Proof of signing. + /// @return Validity of order signature. + function isValidSignature( + bytes32 hash, + bytes signature + ) + external + view + returns (bool isValid); +} diff --git a/contracts/core/contracts/protocol/Exchange/interfaces/IWrapperFunctions.sol b/contracts/core/contracts/protocol/Exchange/interfaces/IWrapperFunctions.sol new file mode 100644 index 000000000..833bb7e88 --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/interfaces/IWrapperFunctions.sol @@ -0,0 +1,160 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; +import "@0x/contracts-libs/contracts/libs/LibFillResults.sol"; + + +contract IWrapperFunctions { + + /// @dev Fills the input order. Reverts if exact takerAssetFillAmount not filled. + /// @param order LibOrder.Order struct containing order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param signature Proof that order has been created by maker. + function fillOrKillOrder( + LibOrder.Order memory order, + uint256 takerAssetFillAmount, + bytes memory signature + ) + public + returns (LibFillResults.FillResults memory fillResults); + + /// @dev Fills an order with specified parameters and ECDSA signature. + /// Returns false if the transaction would otherwise revert. + /// @param order LibOrder.Order struct containing order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param signature Proof that order has been created by maker. + /// @return Amounts filled and fees paid by maker and taker. + function fillOrderNoThrow( + LibOrder.Order memory order, + uint256 takerAssetFillAmount, + bytes memory signature + ) + public + returns (LibFillResults.FillResults memory fillResults); + + /// @dev Synchronously executes multiple calls of fillOrder. + /// @param orders Array of order specifications. + /// @param takerAssetFillAmounts Array of desired amounts of takerAsset to sell in orders. + /// @param signatures Proofs that orders have been created by makers. + /// @return Amounts filled and fees paid by makers and taker. + function batchFillOrders( + LibOrder.Order[] memory orders, + uint256[] memory takerAssetFillAmounts, + bytes[] memory signatures + ) + public + returns (LibFillResults.FillResults memory totalFillResults); + + /// @dev Synchronously executes multiple calls of fillOrKill. + /// @param orders Array of order specifications. + /// @param takerAssetFillAmounts Array of desired amounts of takerAsset to sell in orders. + /// @param signatures Proofs that orders have been created by makers. + /// @return Amounts filled and fees paid by makers and taker. + function batchFillOrKillOrders( + LibOrder.Order[] memory orders, + uint256[] memory takerAssetFillAmounts, + bytes[] memory signatures + ) + public + returns (LibFillResults.FillResults memory totalFillResults); + + /// @dev Fills an order with specified parameters and ECDSA signature. + /// Returns false if the transaction would otherwise revert. + /// @param orders Array of order specifications. + /// @param takerAssetFillAmounts Array of desired amounts of takerAsset to sell in orders. + /// @param signatures Proofs that orders have been created by makers. + /// @return Amounts filled and fees paid by makers and taker. + function batchFillOrdersNoThrow( + LibOrder.Order[] memory orders, + uint256[] memory takerAssetFillAmounts, + bytes[] memory signatures + ) + public + returns (LibFillResults.FillResults memory totalFillResults); + + /// @dev Synchronously executes multiple calls of fillOrder until total amount of takerAsset is sold by taker. + /// @param orders Array of order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param signatures Proofs that orders have been created by makers. + /// @return Amounts filled and fees paid by makers and taker. + function marketSellOrders( + LibOrder.Order[] memory orders, + uint256 takerAssetFillAmount, + bytes[] memory signatures + ) + public + returns (LibFillResults.FillResults memory totalFillResults); + + /// @dev Synchronously executes multiple calls of fillOrder until total amount of takerAsset is sold by taker. + /// Returns false if the transaction would otherwise revert. + /// @param orders Array of order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param signatures Proofs that orders have been signed by makers. + /// @return Amounts filled and fees paid by makers and taker. + function marketSellOrdersNoThrow( + LibOrder.Order[] memory orders, + uint256 takerAssetFillAmount, + bytes[] memory signatures + ) + public + returns (LibFillResults.FillResults memory totalFillResults); + + /// @dev Synchronously executes multiple calls of fillOrder until total amount of makerAsset is bought by taker. + /// @param orders Array of order specifications. + /// @param makerAssetFillAmount Desired amount of makerAsset to buy. + /// @param signatures Proofs that orders have been signed by makers. + /// @return Amounts filled and fees paid by makers and taker. + function marketBuyOrders( + LibOrder.Order[] memory orders, + uint256 makerAssetFillAmount, + bytes[] memory signatures + ) + public + returns (LibFillResults.FillResults memory totalFillResults); + + /// @dev Synchronously executes multiple fill orders in a single transaction until total amount is bought by taker. + /// Returns false if the transaction would otherwise revert. + /// @param orders Array of order specifications. + /// @param makerAssetFillAmount Desired amount of makerAsset to buy. + /// @param signatures Proofs that orders have been signed by makers. + /// @return Amounts filled and fees paid by makers and taker. + function marketBuyOrdersNoThrow( + LibOrder.Order[] memory orders, + uint256 makerAssetFillAmount, + bytes[] memory signatures + ) + public + returns (LibFillResults.FillResults memory totalFillResults); + + /// @dev Synchronously cancels multiple orders in a single transaction. + /// @param orders Array of order specifications. + function batchCancelOrders(LibOrder.Order[] memory orders) + public; + + /// @dev Fetches information for all passed in orders + /// @param orders Array of order specifications. + /// @return Array of OrderInfo instances that correspond to each order. + function getOrdersInfo(LibOrder.Order[] memory orders) + public + view + returns (LibOrder.OrderInfo[] memory); +} diff --git a/contracts/core/contracts/protocol/Exchange/mixins/MAssetProxyDispatcher.sol b/contracts/core/contracts/protocol/Exchange/mixins/MAssetProxyDispatcher.sol new file mode 100644 index 000000000..0ddfca270 --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/mixins/MAssetProxyDispatcher.sol @@ -0,0 +1,45 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "../interfaces/IAssetProxyDispatcher.sol"; + + +contract MAssetProxyDispatcher is + IAssetProxyDispatcher +{ + // Logs registration of new asset proxy + event AssetProxyRegistered( + bytes4 id, // Id of new registered AssetProxy. + address assetProxy // Address of new registered AssetProxy. + ); + + /// @dev Forwards arguments to assetProxy and calls `transferFrom`. Either succeeds or throws. + /// @param assetData Byte array encoded for the asset. + /// @param from Address to transfer token from. + /// @param to Address to transfer token to. + /// @param amount Amount of token to transfer. + function dispatchTransferFrom( + bytes memory assetData, + address from, + address to, + uint256 amount + ) + internal; +} diff --git a/contracts/core/contracts/protocol/Exchange/mixins/MExchangeCore.sol b/contracts/core/contracts/protocol/Exchange/mixins/MExchangeCore.sol new file mode 100644 index 000000000..099bdcc33 --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/mixins/MExchangeCore.sol @@ -0,0 +1,157 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; +import "@0x/contracts-libs/contracts/libs/LibFillResults.sol"; +import "../interfaces/IExchangeCore.sol"; + + +contract MExchangeCore is + IExchangeCore +{ + // Fill event is emitted whenever an order is filled. + event Fill( + address indexed makerAddress, // Address that created the order. + address indexed feeRecipientAddress, // Address that received fees. + address takerAddress, // Address that filled the order. + address senderAddress, // Address that called the Exchange contract (msg.sender). + uint256 makerAssetFilledAmount, // Amount of makerAsset sold by maker and bought by taker. + uint256 takerAssetFilledAmount, // Amount of takerAsset sold by taker and bought by maker. + uint256 makerFeePaid, // Amount of ZRX paid to feeRecipient by maker. + uint256 takerFeePaid, // Amount of ZRX paid to feeRecipient by taker. + bytes32 indexed orderHash, // EIP712 hash of order (see LibOrder.getOrderHash). + bytes makerAssetData, // Encoded data specific to makerAsset. + bytes takerAssetData // Encoded data specific to takerAsset. + ); + + // Cancel event is emitted whenever an individual order is cancelled. + event Cancel( + address indexed makerAddress, // Address that created the order. + address indexed feeRecipientAddress, // Address that would have recieved fees if order was filled. + address senderAddress, // Address that called the Exchange contract (msg.sender). + bytes32 indexed orderHash, // EIP712 hash of order (see LibOrder.getOrderHash). + bytes makerAssetData, // Encoded data specific to makerAsset. + bytes takerAssetData // Encoded data specific to takerAsset. + ); + + // CancelUpTo event is emitted whenever `cancelOrdersUpTo` is executed succesfully. + event CancelUpTo( + address indexed makerAddress, // Orders cancelled must have been created by this address. + address indexed senderAddress, // Orders cancelled must have a `senderAddress` equal to this address. + uint256 orderEpoch // Orders with specified makerAddress and senderAddress with a salt less than this value are considered cancelled. + ); + + /// @dev Fills the input order. + /// @param order Order struct containing order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param signature Proof that order has been created by maker. + /// @return Amounts filled and fees paid by maker and taker. + function fillOrderInternal( + LibOrder.Order memory order, + uint256 takerAssetFillAmount, + bytes memory signature + ) + internal + returns (LibFillResults.FillResults memory fillResults); + + /// @dev After calling, the order can not be filled anymore. + /// @param order Order struct containing order specifications. + function cancelOrderInternal(LibOrder.Order memory order) + internal; + + /// @dev Updates state with results of a fill order. + /// @param order that was filled. + /// @param takerAddress Address of taker who filled the order. + /// @param orderTakerAssetFilledAmount Amount of order already filled. + /// @return fillResults Amounts filled and fees paid by maker and taker. + function updateFilledState( + LibOrder.Order memory order, + address takerAddress, + bytes32 orderHash, + uint256 orderTakerAssetFilledAmount, + LibFillResults.FillResults memory fillResults + ) + internal; + + /// @dev Updates state with results of cancelling an order. + /// State is only updated if the order is currently fillable. + /// Otherwise, updating state would have no effect. + /// @param order that was cancelled. + /// @param orderHash Hash of order that was cancelled. + function updateCancelledState( + LibOrder.Order memory order, + bytes32 orderHash + ) + internal; + + /// @dev Validates context for fillOrder. Succeeds or throws. + /// @param order to be filled. + /// @param orderInfo OrderStatus, orderHash, and amount already filled of order. + /// @param takerAddress Address of order taker. + /// @param signature Proof that the orders was created by its maker. + function assertFillableOrder( + LibOrder.Order memory order, + LibOrder.OrderInfo memory orderInfo, + address takerAddress, + bytes memory signature + ) + internal + view; + + /// @dev Validates context for fillOrder. Succeeds or throws. + /// @param order to be filled. + /// @param orderInfo Status, orderHash, and amount already filled of order. + /// @param takerAssetFillAmount Desired amount of order to fill by taker. + /// @param takerAssetFilledAmount Amount of takerAsset that will be filled. + /// @param makerAssetFilledAmount Amount of makerAsset that will be transfered. + function assertValidFill( + LibOrder.Order memory order, + LibOrder.OrderInfo memory orderInfo, + uint256 takerAssetFillAmount, + uint256 takerAssetFilledAmount, + uint256 makerAssetFilledAmount + ) + internal + view; + + /// @dev Validates context for cancelOrder. Succeeds or throws. + /// @param order to be cancelled. + /// @param orderInfo OrderStatus, orderHash, and amount already filled of order. + function assertValidCancel( + LibOrder.Order memory order, + LibOrder.OrderInfo memory orderInfo + ) + internal + view; + + /// @dev Calculates amounts filled and fees paid by maker and taker. + /// @param order to be filled. + /// @param takerAssetFilledAmount Amount of takerAsset that will be filled. + /// @return fillResults Amounts filled and fees paid by maker and taker. + function calculateFillResults( + LibOrder.Order memory order, + uint256 takerAssetFilledAmount + ) + internal + pure + returns (LibFillResults.FillResults memory fillResults); + +} diff --git a/contracts/core/contracts/protocol/Exchange/mixins/MMatchOrders.sol b/contracts/core/contracts/protocol/Exchange/mixins/MMatchOrders.sol new file mode 100644 index 000000000..bb285de03 --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/mixins/MMatchOrders.sol @@ -0,0 +1,58 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; +import "@0x/contracts-libs/contracts/libs/LibFillResults.sol"; +import "../interfaces/IMatchOrders.sol"; + + +contract MMatchOrders is + IMatchOrders +{ + /// @dev Validates context for matchOrders. Succeeds or throws. + /// @param leftOrder First order to match. + /// @param rightOrder Second order to match. + function assertValidMatch( + LibOrder.Order memory leftOrder, + LibOrder.Order memory rightOrder + ) + internal + pure; + + /// @dev Calculates fill amounts for the matched orders. + /// Each order is filled at their respective price point. However, the calculations are + /// carried out as though the orders are both being filled at the right order's price point. + /// The profit made by the leftOrder order goes to the taker (who matched the two orders). + /// @param leftOrder First order to match. + /// @param rightOrder Second order to match. + /// @param leftOrderTakerAssetFilledAmount Amount of left order already filled. + /// @param rightOrderTakerAssetFilledAmount Amount of right order already filled. + /// @param matchedFillResults Amounts to fill and fees to pay by maker and taker of matched orders. + function calculateMatchedFillResults( + LibOrder.Order memory leftOrder, + LibOrder.Order memory rightOrder, + uint256 leftOrderTakerAssetFilledAmount, + uint256 rightOrderTakerAssetFilledAmount + ) + internal + pure + returns (LibFillResults.MatchedFillResults memory matchedFillResults); + +} diff --git a/contracts/core/contracts/protocol/Exchange/mixins/MSignatureValidator.sol b/contracts/core/contracts/protocol/Exchange/mixins/MSignatureValidator.sol new file mode 100644 index 000000000..1fe88b908 --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/mixins/MSignatureValidator.sol @@ -0,0 +1,75 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "../interfaces/ISignatureValidator.sol"; + + +contract MSignatureValidator is + ISignatureValidator +{ + event SignatureValidatorApproval( + address indexed signerAddress, // Address that approves or disapproves a contract to verify signatures. + address indexed validatorAddress, // Address of signature validator contract. + bool approved // Approval or disapproval of validator contract. + ); + + // Allowed signature types. + enum SignatureType { + Illegal, // 0x00, default value + Invalid, // 0x01 + EIP712, // 0x02 + EthSign, // 0x03 + Wallet, // 0x04 + Validator, // 0x05 + PreSigned, // 0x06 + NSignatureTypes // 0x07, number of signature types. Always leave at end. + } + + /// @dev Verifies signature using logic defined by Wallet contract. + /// @param hash Any 32 byte hash. + /// @param walletAddress Address that should have signed the given hash + /// and defines its own signature verification method. + /// @param signature Proof that the hash has been signed by signer. + /// @return True if the address recovered from the provided signature matches the input signer address. + function isValidWalletSignature( + bytes32 hash, + address walletAddress, + bytes signature + ) + internal + view + returns (bool isValid); + + /// @dev Verifies signature using logic defined by Validator contract. + /// @param validatorAddress Address of validator contract. + /// @param hash Any 32 byte hash. + /// @param signerAddress Address that should have signed the given hash. + /// @param signature Proof that the hash has been signed by signer. + /// @return True if the address recovered from the provided signature matches the input signer address. + function isValidValidatorSignature( + address validatorAddress, + bytes32 hash, + address signerAddress, + bytes signature + ) + internal + view + returns (bool isValid); +} diff --git a/contracts/core/contracts/protocol/Exchange/mixins/MTransactions.sol b/contracts/core/contracts/protocol/Exchange/mixins/MTransactions.sol new file mode 100644 index 000000000..4f61a4945 --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/mixins/MTransactions.sol @@ -0,0 +1,58 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ +pragma solidity 0.4.24; + +import "../interfaces/ITransactions.sol"; + + +contract MTransactions is + ITransactions +{ + // Hash for the EIP712 ZeroEx Transaction Schema + bytes32 constant internal EIP712_ZEROEX_TRANSACTION_SCHEMA_HASH = keccak256(abi.encodePacked( + "ZeroExTransaction(", + "uint256 salt,", + "address signerAddress,", + "bytes data", + ")" + )); + + /// @dev Calculates EIP712 hash of the Transaction. + /// @param salt Arbitrary number to ensure uniqueness of transaction hash. + /// @param signerAddress Address of transaction signer. + /// @param data AbiV2 encoded calldata. + /// @return EIP712 hash of the Transaction. + function hashZeroExTransaction( + uint256 salt, + address signerAddress, + bytes memory data + ) + internal + pure + returns (bytes32 result); + + /// @dev The current function will be called in the context of this address (either 0x transaction signer or `msg.sender`). + /// If calling a fill function, this address will represent the taker. + /// If calling a cancel function, this address will represent the maker. + /// @return Signer of 0x transaction if entry point is `executeTransaction`. + /// `msg.sender` if entry point is any other function. + function getCurrentContextAddress() + internal + view + returns (address); +} diff --git a/contracts/core/contracts/protocol/Exchange/mixins/MWrapperFunctions.sol b/contracts/core/contracts/protocol/Exchange/mixins/MWrapperFunctions.sol new file mode 100644 index 000000000..2d21bf057 --- /dev/null +++ b/contracts/core/contracts/protocol/Exchange/mixins/MWrapperFunctions.sol @@ -0,0 +1,41 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; +import "@0x/contracts-libs/contracts/libs/LibFillResults.sol"; +import "../interfaces/IWrapperFunctions.sol"; + + +contract MWrapperFunctions is + IWrapperFunctions +{ + /// @dev Fills the input order. Reverts if exact takerAssetFillAmount not filled. + /// @param order LibOrder.Order struct containing order specifications. + /// @param takerAssetFillAmount Desired amount of takerAsset to sell. + /// @param signature Proof that order has been created by maker. + function fillOrKillOrderInternal( + LibOrder.Order memory order, + uint256 takerAssetFillAmount, + bytes memory signature + ) + internal + returns (LibFillResults.FillResults memory fillResults); +} diff --git a/contracts/core/contracts/test/DummyERC20Token/DummyERC20Token.sol b/contracts/core/contracts/test/DummyERC20Token/DummyERC20Token.sol new file mode 100644 index 000000000..33028db0c --- /dev/null +++ b/contracts/core/contracts/test/DummyERC20Token/DummyERC20Token.sol @@ -0,0 +1,77 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "@0x/contracts-utils/contracts/utils/Ownable/Ownable.sol"; +import "../../tokens/ERC20Token/MintableERC20Token.sol"; + + +contract DummyERC20Token is + Ownable, + MintableERC20Token +{ + string public name; + string public symbol; + uint256 public decimals; + uint256 public constant MAX_MINT_AMOUNT = 10000000000000000000000; + + constructor ( + string _name, + string _symbol, + uint256 _decimals, + uint256 _totalSupply + ) + public + { + name = _name; + symbol = _symbol; + decimals = _decimals; + _totalSupply = _totalSupply; + balances[msg.sender] = _totalSupply; + } + + /// @dev Sets the balance of target address + /// @param _target Address or which balance will be updated + /// @param _value New balance of target address + function setBalance(address _target, uint256 _value) + external + onlyOwner + { + uint256 currBalance = balances[_target]; + if (_value < currBalance) { + _totalSupply = safeSub(_totalSupply, safeSub(currBalance, _value)); + } else { + _totalSupply = safeAdd(_totalSupply, safeSub(_value, currBalance)); + } + balances[_target] = _value; + } + + /// @dev Mints new tokens for sender + /// @param _value Amount of tokens to mint + function mint(uint256 _value) + external + { + require( + _value <= MAX_MINT_AMOUNT, + "VALUE_TOO_LARGE" + ); + + _mint(msg.sender, _value); + } +} diff --git a/contracts/core/contracts/test/DummyERC20Token/DummyMultipleReturnERC20Token.sol b/contracts/core/contracts/test/DummyERC20Token/DummyMultipleReturnERC20Token.sol new file mode 100644 index 000000000..733d4437e --- /dev/null +++ b/contracts/core/contracts/test/DummyERC20Token/DummyMultipleReturnERC20Token.sol @@ -0,0 +1,69 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "./DummyERC20Token.sol"; + + +// solhint-disable no-empty-blocks +contract DummyMultipleReturnERC20Token is + DummyERC20Token +{ + constructor ( + string _name, + string _symbol, + uint256 _decimals, + uint256 _totalSupply + ) + public + DummyERC20Token( + _name, + _symbol, + _decimals, + _totalSupply + ) + {} + + /// @dev send `value` token to `to` from `from` on the condition it is approved by `from` + /// @param _from The address of the sender + /// @param _to The address of the recipient + /// @param _value The amount of token to be transferred + function transferFrom( + address _from, + address _to, + uint256 _value + ) + external + returns (bool) + { + emit Transfer( + _from, + _to, + _value + ); + + // HACK: This contract will not compile if we remove `returns (bool)`, so we manually return 64 bytes (equiavalent to true, true) + assembly { + mstore(0, 1) + mstore(32, 1) + return(0, 64) + } + } +} + diff --git a/contracts/core/contracts/test/DummyERC20Token/DummyNoReturnERC20Token.sol b/contracts/core/contracts/test/DummyERC20Token/DummyNoReturnERC20Token.sol new file mode 100644 index 000000000..e16825a16 --- /dev/null +++ b/contracts/core/contracts/test/DummyERC20Token/DummyNoReturnERC20Token.sol @@ -0,0 +1,115 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "./DummyERC20Token.sol"; + + +// solhint-disable no-empty-blocks +contract DummyNoReturnERC20Token is + DummyERC20Token +{ + constructor ( + string _name, + string _symbol, + uint256 _decimals, + uint256 _totalSupply + ) + public + DummyERC20Token( + _name, + _symbol, + _decimals, + _totalSupply + ) + {} + + /// @dev send `value` token to `to` from `msg.sender` + /// @param _to The address of the recipient + /// @param _value The amount of token to be transferred + function transfer(address _to, uint256 _value) + external + returns (bool) + { + require( + balances[msg.sender] >= _value, + "ERC20_INSUFFICIENT_BALANCE" + ); + require( + balances[_to] + _value >= balances[_to], + "UINT256_OVERFLOW" + ); + + balances[msg.sender] -= _value; + balances[_to] += _value; + + emit Transfer( + msg.sender, + _to, + _value + ); + + // HACK: This contract will not compile if we remove `returns (bool)`, so we manually return no data + assembly { + return(0, 0) + } + } + + /// @dev send `value` token to `to` from `from` on the condition it is approved by `from` + /// @param _from The address of the sender + /// @param _to The address of the recipient + /// @param _value The amount of token to be transferred + function transferFrom( + address _from, + address _to, + uint256 _value + ) + external + returns (bool) + { + require( + balances[_from] >= _value, + "ERC20_INSUFFICIENT_BALANCE" + ); + require( + allowed[_from][msg.sender] >= _value, + "ERC20_INSUFFICIENT_ALLOWANCE" + ); + require( + balances[_to] + _value >= balances[_to], + "UINT256_OVERFLOW" + ); + + balances[_to] += _value; + balances[_from] -= _value; + allowed[_from][msg.sender] -= _value; + + emit Transfer( + _from, + _to, + _value + ); + + // HACK: This contract will not compile if we remove `returns (bool)`, so we manually return no data + assembly { + return(0, 0) + } + } +} + diff --git a/contracts/core/contracts/test/DummyERC721Receiver/DummyERC721Receiver.sol b/contracts/core/contracts/test/DummyERC721Receiver/DummyERC721Receiver.sol new file mode 100644 index 000000000..6c8371559 --- /dev/null +++ b/contracts/core/contracts/test/DummyERC721Receiver/DummyERC721Receiver.sol @@ -0,0 +1,67 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "../../tokens/ERC721Token/IERC721Receiver.sol"; + + +contract DummyERC721Receiver is + IERC721Receiver +{ + // Function selector for ERC721Receiver.onERC721Received + // 0x150b7a02 + bytes4 constant internal ERC721_RECEIVED = bytes4(keccak256("onERC721Received(address,address,uint256,bytes)")); + + event TokenReceived( + address operator, + address from, + uint256 tokenId, + bytes data + ); + + /// @notice Handle the receipt of an NFT + /// @dev The ERC721 smart contract calls this function on the recipient + /// after a `transfer`. This function MAY throw to revert and reject the + /// transfer. Return of other than the magic value MUST result in the + /// transaction being reverted. + /// Note: the contract address is always the message sender. + /// @param _operator The address which called `safeTransferFrom` function + /// @param _from The address which previously owned the token + /// @param _tokenId The NFT identifier which is being transferred + /// @param _data Additional data with no specified format + /// @return `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))` + /// unless throwing + function onERC721Received( + address _operator, + address _from, + uint256 _tokenId, + bytes _data + ) + external + returns (bytes4) + { + emit TokenReceived( + _operator, + _from, + _tokenId, + _data + ); + return ERC721_RECEIVED; + } +} diff --git a/contracts/core/contracts/test/DummyERC721Receiver/InvalidERC721Receiver.sol b/contracts/core/contracts/test/DummyERC721Receiver/InvalidERC721Receiver.sol new file mode 100644 index 000000000..309633bf5 --- /dev/null +++ b/contracts/core/contracts/test/DummyERC721Receiver/InvalidERC721Receiver.sol @@ -0,0 +1,66 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "../../tokens/ERC721Token/IERC721Receiver.sol"; + + +contract InvalidERC721Receiver is + IERC721Receiver +{ + // Actual function signature is `onERC721Received(address,address,uint256,bytes)` + bytes4 constant internal INVALID_ERC721_RECEIVED = bytes4(keccak256("onERC721Received(address,uint256,bytes)")); + + event TokenReceived( + address operator, + address from, + uint256 tokenId, + bytes data + ); + + /// @notice Handle the receipt of an NFT + /// @dev The ERC721 smart contract calls this function on the recipient + /// after a `transfer`. This function MAY throw to revert and reject the + /// transfer. Return of other than the magic value MUST result in the + /// transaction being reverted. + /// Note: the contract address is always the message sender. + /// @param _operator The address which called `safeTransferFrom` function + /// @param _from The address which previously owned the token + /// @param _tokenId The NFT identifier which is being transferred + /// @param _data Additional data with no specified format + /// @return `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))` + /// unless throwing + function onERC721Received( + address _operator, + address _from, + uint256 _tokenId, + bytes _data + ) + external + returns (bytes4) + { + emit TokenReceived( + _operator, + _from, + _tokenId, + _data + ); + return INVALID_ERC721_RECEIVED; + } +} diff --git a/contracts/core/contracts/test/DummyERC721Token/DummyERC721Token.sol b/contracts/core/contracts/test/DummyERC721Token/DummyERC721Token.sol new file mode 100644 index 000000000..4c978b2df --- /dev/null +++ b/contracts/core/contracts/test/DummyERC721Token/DummyERC721Token.sol @@ -0,0 +1,63 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "../../tokens/ERC721Token/MintableERC721Token.sol"; +import "@0x/contracts-utils/contracts/utils/Ownable/Ownable.sol"; + + +// solhint-disable no-empty-blocks +contract DummyERC721Token is + Ownable, + MintableERC721Token +{ + string public name; + string public symbol; + + constructor ( + string _name, + string _symbol + ) + public + { + name = _name; + symbol = _symbol; + } + + /// @dev Function to mint a new token + /// Reverts if the given token ID already exists + /// @param _to Address of the beneficiary that will own the minted token + /// @param _tokenId ID of the token to be minted by the msg.sender + function mint(address _to, uint256 _tokenId) + external + { + _mint(_to, _tokenId); + } + + /// @dev Function to burn a token + /// Reverts if the given token ID doesn't exist or not called by contract owner + /// @param _owner Owner of token with given token ID + /// @param _tokenId ID of the token to be burned by the msg.sender + function burn(address _owner, uint256 _tokenId) + external + onlyOwner + { + _burn(_owner, _tokenId); + } +} diff --git a/contracts/core/contracts/test/ReentrantERC20Token/ReentrantERC20Token.sol b/contracts/core/contracts/test/ReentrantERC20Token/ReentrantERC20Token.sol new file mode 100644 index 000000000..8e077e3e8 --- /dev/null +++ b/contracts/core/contracts/test/ReentrantERC20Token/ReentrantERC20Token.sol @@ -0,0 +1,188 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "@0x/contracts-utils/contracts/utils/LibBytes/LibBytes.sol"; +import "../../tokens/ERC20Token/ERC20Token.sol"; +import "../../protocol/Exchange/interfaces/IExchange.sol"; +import "@0x/contracts-libs/contracts/libs/LibOrder.sol"; + + +// solhint-disable no-unused-vars +contract ReentrantERC20Token is + ERC20Token +{ + using LibBytes for bytes; + + // solhint-disable-next-line var-name-mixedcase + IExchange internal EXCHANGE; + + bytes internal constant REENTRANCY_ILLEGAL_REVERT_REASON = abi.encodeWithSelector( + bytes4(keccak256("Error(string)")), + "REENTRANCY_ILLEGAL" + ); + + // All of these functions are potentially vulnerable to reentrancy + // We do not test any "noThrow" functions because `fillOrderNoThrow` makes a delegatecall to `fillOrder` + enum ExchangeFunction { + FILL_ORDER, + FILL_OR_KILL_ORDER, + BATCH_FILL_ORDERS, + BATCH_FILL_OR_KILL_ORDERS, + MARKET_BUY_ORDERS, + MARKET_SELL_ORDERS, + MATCH_ORDERS, + CANCEL_ORDER, + BATCH_CANCEL_ORDERS, + CANCEL_ORDERS_UP_TO, + SET_SIGNATURE_VALIDATOR_APPROVAL + } + + uint8 internal currentFunctionId = 0; + + constructor (address _exchange) + public + { + EXCHANGE = IExchange(_exchange); + } + + /// @dev Set the current function that will be called when `transferFrom` is called. + /// @param _currentFunctionId Id that corresponds to function name. + function setCurrentFunction(uint8 _currentFunctionId) + external + { + currentFunctionId = _currentFunctionId; + } + + /// @dev A version of `transferFrom` that attempts to reenter the Exchange contract. + /// @param _from The address of the sender + /// @param _to The address of the recipient + /// @param _value The amount of token to be transferred + function transferFrom( + address _from, + address _to, + uint256 _value + ) + external + returns (bool) + { + // This order would normally be invalid, but it will be used strictly for testing reentrnacy. + // Any reentrancy checks will happen before any other checks that invalidate the order. + LibOrder.Order memory order; + + // Initialize remaining null parameters + bytes memory signature; + LibOrder.Order[] memory orders; + uint256[] memory takerAssetFillAmounts; + bytes[] memory signatures; + bytes memory callData; + + // Create callData for function that corresponds to currentFunctionId + if (currentFunctionId == uint8(ExchangeFunction.FILL_ORDER)) { + callData = abi.encodeWithSelector( + EXCHANGE.fillOrder.selector, + order, + 0, + signature + ); + } else if (currentFunctionId == uint8(ExchangeFunction.FILL_OR_KILL_ORDER)) { + callData = abi.encodeWithSelector( + EXCHANGE.fillOrKillOrder.selector, + order, + 0, + signature + ); + } else if (currentFunctionId == uint8(ExchangeFunction.BATCH_FILL_ORDERS)) { + callData = abi.encodeWithSelector( + EXCHANGE.batchFillOrders.selector, + orders, + takerAssetFillAmounts, + signatures + ); + } else if (currentFunctionId == uint8(ExchangeFunction.BATCH_FILL_OR_KILL_ORDERS)) { + callData = abi.encodeWithSelector( + EXCHANGE.batchFillOrKillOrders.selector, + orders, + takerAssetFillAmounts, + signatures + ); + } else if (currentFunctionId == uint8(ExchangeFunction.MARKET_BUY_ORDERS)) { + callData = abi.encodeWithSelector( + EXCHANGE.marketBuyOrders.selector, + orders, + 0, + signatures + ); + } else if (currentFunctionId == uint8(ExchangeFunction.MARKET_SELL_ORDERS)) { + callData = abi.encodeWithSelector( + EXCHANGE.marketSellOrders.selector, + orders, + 0, + signatures + ); + } else if (currentFunctionId == uint8(ExchangeFunction.MATCH_ORDERS)) { + callData = abi.encodeWithSelector( + EXCHANGE.matchOrders.selector, + order, + order, + signature, + signature + ); + } else if (currentFunctionId == uint8(ExchangeFunction.CANCEL_ORDER)) { + callData = abi.encodeWithSelector( + EXCHANGE.cancelOrder.selector, + order + ); + } else if (currentFunctionId == uint8(ExchangeFunction.BATCH_CANCEL_ORDERS)) { + callData = abi.encodeWithSelector( + EXCHANGE.batchCancelOrders.selector, + orders + ); + } else if (currentFunctionId == uint8(ExchangeFunction.CANCEL_ORDERS_UP_TO)) { + callData = abi.encodeWithSelector( + EXCHANGE.cancelOrdersUpTo.selector, + 0 + ); + } else if (currentFunctionId == uint8(ExchangeFunction.SET_SIGNATURE_VALIDATOR_APPROVAL)) { + callData = abi.encodeWithSelector( + EXCHANGE.setSignatureValidatorApproval.selector, + address(0), + false + ); + } + + // Call Exchange function, swallow error + address(EXCHANGE).call(callData); + + // Revert reason is 100 bytes + bytes memory returnData = new bytes(100); + + // Copy return data + assembly { + returndatacopy(add(returnData, 32), 0, 100) + } + + // Revert if function reverted with REENTRANCY_ILLEGAL error + require(!REENTRANCY_ILLEGAL_REVERT_REASON.equals(returnData)); + + // Transfer will return true if function failed for any other reason + return true; + } +}
\ No newline at end of file diff --git a/contracts/core/contracts/test/TestAssetProxyDispatcher/TestAssetProxyDispatcher.sol b/contracts/core/contracts/test/TestAssetProxyDispatcher/TestAssetProxyDispatcher.sol new file mode 100644 index 000000000..ad71fc9a1 --- /dev/null +++ b/contracts/core/contracts/test/TestAssetProxyDispatcher/TestAssetProxyDispatcher.sol @@ -0,0 +1,37 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "../../protocol/Exchange/MixinAssetProxyDispatcher.sol"; + + +contract TestAssetProxyDispatcher is + MixinAssetProxyDispatcher +{ + function publicDispatchTransferFrom( + bytes memory assetData, + address from, + address to, + uint256 amount + ) + public + { + dispatchTransferFrom(assetData, from, to, amount); + } +} diff --git a/contracts/core/contracts/test/TestAssetProxyOwner/TestAssetProxyOwner.sol b/contracts/core/contracts/test/TestAssetProxyOwner/TestAssetProxyOwner.sol new file mode 100644 index 000000000..52c66cb56 --- /dev/null +++ b/contracts/core/contracts/test/TestAssetProxyOwner/TestAssetProxyOwner.sol @@ -0,0 +1,58 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "../../protocol/AssetProxyOwner/AssetProxyOwner.sol"; + + +// solhint-disable no-empty-blocks +contract TestAssetProxyOwner is + AssetProxyOwner +{ + constructor ( + address[] memory _owners, + address[] memory _assetProxyContracts, + uint256 _required, + uint256 _secondsTimeLocked + ) + public + AssetProxyOwner(_owners, _assetProxyContracts, _required, _secondsTimeLocked) + {} + + function testValidRemoveAuthorizedAddressAtIndexTx(uint256 id) + public + view + validRemoveAuthorizedAddressAtIndexTx(id) + returns (bool) + { + // Do nothing. We expect reverts through the modifier + return true; + } + + /// @dev Compares first 4 bytes of byte array to `removeAuthorizedAddressAtIndex` function selector. + /// @param data Transaction data. + /// @return Successful if data is a call to `removeAuthorizedAddressAtIndex`. + function isFunctionRemoveAuthorizedAddressAtIndex(bytes memory data) + public + pure + returns (bool) + { + return data.readBytes4(0) == REMOVE_AUTHORIZED_ADDRESS_AT_INDEX_SELECTOR; + } +} diff --git a/contracts/core/contracts/test/TestExchangeInternals/TestExchangeInternals.sol b/contracts/core/contracts/test/TestExchangeInternals/TestExchangeInternals.sol new file mode 100644 index 000000000..27187f8f8 --- /dev/null +++ b/contracts/core/contracts/test/TestExchangeInternals/TestExchangeInternals.sol @@ -0,0 +1,191 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; +pragma experimental ABIEncoderV2; + +import "../../protocol/Exchange/Exchange.sol"; + + +// solhint-disable no-empty-blocks +contract TestExchangeInternals is + Exchange +{ + constructor () + public + Exchange("") + {} + + /// @dev Adds properties of both FillResults instances. + /// Modifies the first FillResults instance specified. + /// Note that this function has been modified from the original + // internal version to return the FillResults. + /// @param totalFillResults Fill results instance that will be added onto. + /// @param singleFillResults Fill results instance that will be added to totalFillResults. + /// @return newTotalFillResults The result of adding singleFillResults to totalFilResults. + function publicAddFillResults(FillResults memory totalFillResults, FillResults memory singleFillResults) + public + pure + returns (FillResults memory) + { + addFillResults(totalFillResults, singleFillResults); + return totalFillResults; + } + + /// @dev Calculates amounts filled and fees paid by maker and taker. + /// @param order to be filled. + /// @param takerAssetFilledAmount Amount of takerAsset that will be filled. + /// @return fillResults Amounts filled and fees paid by maker and taker. + function publicCalculateFillResults( + Order memory order, + uint256 takerAssetFilledAmount + ) + public + pure + returns (FillResults memory fillResults) + { + return calculateFillResults(order, takerAssetFilledAmount); + } + + /// @dev Calculates partial value given a numerator and denominator. + /// Reverts if rounding error is >= 0.1% + /// @param numerator Numerator. + /// @param denominator Denominator. + /// @param target Value to calculate partial of. + /// @return Partial value of target. + function publicSafeGetPartialAmountFloor( + uint256 numerator, + uint256 denominator, + uint256 target + ) + public + pure + returns (uint256 partialAmount) + { + return safeGetPartialAmountFloor(numerator, denominator, target); + } + + /// @dev Calculates partial value given a numerator and denominator. + /// Reverts if rounding error is >= 0.1% + /// @param numerator Numerator. + /// @param denominator Denominator. + /// @param target Value to calculate partial of. + /// @return Partial value of target. + function publicSafeGetPartialAmountCeil( + uint256 numerator, + uint256 denominator, + uint256 target + ) + public + pure + returns (uint256 partialAmount) + { + return safeGetPartialAmountCeil(numerator, denominator, target); + } + + /// @dev Calculates partial value given a numerator and denominator. + /// @param numerator Numerator. + /// @param denominator Denominator. + /// @param target Value to calculate partial of. + /// @return Partial value of target. + function publicGetPartialAmountFloor( + uint256 numerator, + uint256 denominator, + uint256 target + ) + public + pure + returns (uint256 partialAmount) + { + return getPartialAmountFloor(numerator, denominator, target); + } + + /// @dev Calculates partial value given a numerator and denominator. + /// @param numerator Numerator. + /// @param denominator Denominator. + /// @param target Value to calculate partial of. + /// @return Partial value of target. + function publicGetPartialAmountCeil( + uint256 numerator, + uint256 denominator, + uint256 target + ) + public + pure + returns (uint256 partialAmount) + { + return getPartialAmountCeil(numerator, denominator, target); + } + + /// @dev Checks if rounding error >= 0.1%. + /// @param numerator Numerator. + /// @param denominator Denominator. + /// @param target Value to multiply with numerator/denominator. + /// @return Rounding error is present. + function publicIsRoundingErrorFloor( + uint256 numerator, + uint256 denominator, + uint256 target + ) + public + pure + returns (bool isError) + { + return isRoundingErrorFloor(numerator, denominator, target); + } + + /// @dev Checks if rounding error >= 0.1%. + /// @param numerator Numerator. + /// @param denominator Denominator. + /// @param target Value to multiply with numerator/denominator. + /// @return Rounding error is present. + function publicIsRoundingErrorCeil( + uint256 numerator, + uint256 denominator, + uint256 target + ) + public + pure + returns (bool isError) + { + return isRoundingErrorCeil(numerator, denominator, target); + } + + /// @dev Updates state with results of a fill order. + /// @param order that was filled. + /// @param takerAddress Address of taker who filled the order. + /// @param orderTakerAssetFilledAmount Amount of order already filled. + /// @return fillResults Amounts filled and fees paid by maker and taker. + function publicUpdateFilledState( + Order memory order, + address takerAddress, + bytes32 orderHash, + uint256 orderTakerAssetFilledAmount, + FillResults memory fillResults + ) + public + { + updateFilledState( + order, + takerAddress, + orderHash, + orderTakerAssetFilledAmount, + fillResults + ); + } +} diff --git a/contracts/core/contracts/test/TestSignatureValidator/TestSignatureValidator.sol b/contracts/core/contracts/test/TestSignatureValidator/TestSignatureValidator.sol new file mode 100644 index 000000000..ea3e2de59 --- /dev/null +++ b/contracts/core/contracts/test/TestSignatureValidator/TestSignatureValidator.sol @@ -0,0 +1,45 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "../../protocol/Exchange/MixinSignatureValidator.sol"; +import "../../protocol/Exchange/MixinTransactions.sol"; + + +contract TestSignatureValidator is + MixinSignatureValidator, + MixinTransactions +{ + function publicIsValidSignature( + bytes32 hash, + address signer, + bytes memory signature + ) + public + view + returns (bool isValid) + { + isValid = isValidSignature( + hash, + signer, + signature + ); + return isValid; + } +} diff --git a/contracts/core/contracts/test/TestStaticCallReceiver/TestStaticCallReceiver.sol b/contracts/core/contracts/test/TestStaticCallReceiver/TestStaticCallReceiver.sol new file mode 100644 index 000000000..41aab01c8 --- /dev/null +++ b/contracts/core/contracts/test/TestStaticCallReceiver/TestStaticCallReceiver.sol @@ -0,0 +1,81 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "../../tokens/ERC20Token/IERC20Token.sol"; + + +// solhint-disable no-unused-vars +contract TestStaticCallReceiver { + + uint256 internal state = 1; + + /// @dev Updates state and returns true. Intended to be used with `Validator` signature type. + /// @param hash Message hash that is signed. + /// @param signerAddress Address that should have signed the given hash. + /// @param signature Proof of signing. + /// @return Validity of order signature. + function isValidSignature( + bytes32 hash, + address signerAddress, + bytes signature + ) + external + returns (bool isValid) + { + updateState(); + return true; + } + + /// @dev Updates state and returns true. Intended to be used with `Wallet` signature type. + /// @param hash Message hash that is signed. + /// @param signature Proof of signing. + /// @return Validity of order signature. + function isValidSignature( + bytes32 hash, + bytes signature + ) + external + returns (bool isValid) + { + updateState(); + return true; + } + + /// @dev Approves an ERC20 token to spend tokens from this address. + /// @param token Address of ERC20 token. + /// @param spender Address that will spend tokens. + /// @param value Amount of tokens spender is approved to spend. + function approveERC20( + address token, + address spender, + uint256 value + ) + external + { + IERC20Token(token).approve(spender, value); + } + + /// @dev Increments state variable. + function updateState() + internal + { + state++; + } +} diff --git a/contracts/core/contracts/tokens/ERC20Token/ERC20Token.sol b/contracts/core/contracts/tokens/ERC20Token/ERC20Token.sol new file mode 100644 index 000000000..725d304df --- /dev/null +++ b/contracts/core/contracts/tokens/ERC20Token/ERC20Token.sol @@ -0,0 +1,148 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "./IERC20Token.sol"; + + +contract ERC20Token is + IERC20Token +{ + mapping (address => uint256) internal balances; + mapping (address => mapping (address => uint256)) internal allowed; + + uint256 internal _totalSupply; + + /// @dev send `value` token to `to` from `msg.sender` + /// @param _to The address of the recipient + /// @param _value The amount of token to be transferred + /// @return True if transfer was successful + function transfer(address _to, uint256 _value) + external + returns (bool) + { + require( + balances[msg.sender] >= _value, + "ERC20_INSUFFICIENT_BALANCE" + ); + require( + balances[_to] + _value >= balances[_to], + "UINT256_OVERFLOW" + ); + + balances[msg.sender] -= _value; + balances[_to] += _value; + + emit Transfer( + msg.sender, + _to, + _value + ); + + return true; + } + + /// @dev send `value` token to `to` from `from` on the condition it is approved by `from` + /// @param _from The address of the sender + /// @param _to The address of the recipient + /// @param _value The amount of token to be transferred + /// @return True if transfer was successful + function transferFrom( + address _from, + address _to, + uint256 _value + ) + external + returns (bool) + { + require( + balances[_from] >= _value, + "ERC20_INSUFFICIENT_BALANCE" + ); + require( + allowed[_from][msg.sender] >= _value, + "ERC20_INSUFFICIENT_ALLOWANCE" + ); + require( + balances[_to] + _value >= balances[_to], + "UINT256_OVERFLOW" + ); + + balances[_to] += _value; + balances[_from] -= _value; + allowed[_from][msg.sender] -= _value; + + emit Transfer( + _from, + _to, + _value + ); + + return true; + } + + /// @dev `msg.sender` approves `_spender` to spend `_value` tokens + /// @param _spender The address of the account able to transfer the tokens + /// @param _value The amount of wei to be approved for transfer + /// @return Always true if the call has enough gas to complete execution + function approve(address _spender, uint256 _value) + external + returns (bool) + { + allowed[msg.sender][_spender] = _value; + emit Approval( + msg.sender, + _spender, + _value + ); + return true; + } + + /// @dev Query total supply of token + /// @return Total supply of token + function totalSupply() + external + view + returns (uint256) + { + return _totalSupply; + } + + /// @dev Query the balance of owner + /// @param _owner The address from which the balance will be retrieved + /// @return Balance of owner + function balanceOf(address _owner) + external + view + returns (uint256) + { + return balances[_owner]; + } + + /// @param _owner The address of the account owning tokens + /// @param _spender The address of the account able to transfer the tokens + /// @return Amount of remaining tokens allowed to spent + function allowance(address _owner, address _spender) + external + view + returns (uint256) + { + return allowed[_owner][_spender]; + } +} diff --git a/contracts/core/contracts/tokens/ERC20Token/IERC20Token.sol b/contracts/core/contracts/tokens/ERC20Token/IERC20Token.sol new file mode 100644 index 000000000..258d47393 --- /dev/null +++ b/contracts/core/contracts/tokens/ERC20Token/IERC20Token.sol @@ -0,0 +1,87 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + + +contract IERC20Token { + + // solhint-disable no-simple-event-func-name + event Transfer( + address indexed _from, + address indexed _to, + uint256 _value + ); + + event Approval( + address indexed _owner, + address indexed _spender, + uint256 _value + ); + + /// @dev send `value` token to `to` from `msg.sender` + /// @param _to The address of the recipient + /// @param _value The amount of token to be transferred + /// @return True if transfer was successful + function transfer(address _to, uint256 _value) + external + returns (bool); + + /// @dev send `value` token to `to` from `from` on the condition it is approved by `from` + /// @param _from The address of the sender + /// @param _to The address of the recipient + /// @param _value The amount of token to be transferred + /// @return True if transfer was successful + function transferFrom( + address _from, + address _to, + uint256 _value + ) + external + returns (bool); + + /// @dev `msg.sender` approves `_spender` to spend `_value` tokens + /// @param _spender The address of the account able to transfer the tokens + /// @param _value The amount of wei to be approved for transfer + /// @return Always true if the call has enough gas to complete execution + function approve(address _spender, uint256 _value) + external + returns (bool); + + /// @dev Query total supply of token + /// @return Total supply of token + function totalSupply() + external + view + returns (uint256); + + /// @param _owner The address from which the balance will be retrieved + /// @return Balance of owner + function balanceOf(address _owner) + external + view + returns (uint256); + + /// @param _owner The address of the account owning tokens + /// @param _spender The address of the account able to transfer the tokens + /// @return Amount of remaining tokens allowed to spent + function allowance(address _owner, address _spender) + external + view + returns (uint256); +} diff --git a/contracts/core/contracts/tokens/ERC20Token/MintableERC20Token.sol b/contracts/core/contracts/tokens/ERC20Token/MintableERC20Token.sol new file mode 100644 index 000000000..58bccb5a1 --- /dev/null +++ b/contracts/core/contracts/tokens/ERC20Token/MintableERC20Token.sol @@ -0,0 +1,60 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "@0x/contracts-utils/contracts/utils/SafeMath/SafeMath.sol"; +import "./UnlimitedAllowanceERC20Token.sol"; + + +contract MintableERC20Token is + SafeMath, + UnlimitedAllowanceERC20Token +{ + /// @dev Mints new tokens + /// @param _to Address of the beneficiary that will own the minted token + /// @param _value Amount of tokens to mint + function _mint(address _to, uint256 _value) + internal + { + balances[_to] = safeAdd(_value, balances[_to]); + _totalSupply = safeAdd(_totalSupply, _value); + + emit Transfer( + address(0), + _to, + _value + ); + } + + /// @dev Mints new tokens + /// @param _owner Owner of tokens that will be burned + /// @param _value Amount of tokens to burn + function _burn(address _owner, uint256 _value) + internal + { + balances[_owner] = safeSub(balances[_owner], _value); + _totalSupply = safeSub(_totalSupply, _value); + + emit Transfer( + _owner, + address(0), + _value + ); + } +} diff --git a/contracts/core/contracts/tokens/ERC20Token/UnlimitedAllowanceERC20Token.sol b/contracts/core/contracts/tokens/ERC20Token/UnlimitedAllowanceERC20Token.sol new file mode 100644 index 000000000..2e5bd4348 --- /dev/null +++ b/contracts/core/contracts/tokens/ERC20Token/UnlimitedAllowanceERC20Token.sol @@ -0,0 +1,70 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "../ERC20Token/ERC20Token.sol"; + + +contract UnlimitedAllowanceERC20Token is + ERC20Token +{ + uint256 constant internal MAX_UINT = 2**256 - 1; + + /// @dev ERC20 transferFrom, modified such that an allowance of MAX_UINT represents an unlimited allowance. See https://github.com/ethereum/EIPs/issues/717 + /// @param _from Address to transfer from. + /// @param _to Address to transfer to. + /// @param _value Amount to transfer. + /// @return Success of transfer. + function transferFrom( + address _from, + address _to, + uint256 _value + ) + external + returns (bool) + { + uint256 allowance = allowed[_from][msg.sender]; + require( + balances[_from] >= _value, + "ERC20_INSUFFICIENT_BALANCE" + ); + require( + allowance >= _value, + "ERC20_INSUFFICIENT_ALLOWANCE" + ); + require( + balances[_to] + _value >= balances[_to], + "UINT256_OVERFLOW" + ); + + balances[_to] += _value; + balances[_from] -= _value; + if (allowance < MAX_UINT) { + allowed[_from][msg.sender] -= _value; + } + + emit Transfer( + _from, + _to, + _value + ); + + return true; + } +} diff --git a/contracts/core/contracts/tokens/ERC721Token/ERC721Token.sol b/contracts/core/contracts/tokens/ERC721Token/ERC721Token.sol new file mode 100644 index 000000000..600cee1ab --- /dev/null +++ b/contracts/core/contracts/tokens/ERC721Token/ERC721Token.sol @@ -0,0 +1,277 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "./IERC721Token.sol"; +import "./IERC721Receiver.sol"; +import "@0x/contracts-utils/contracts/utils/SafeMath/SafeMath.sol"; + + +contract ERC721Token is + IERC721Token, + SafeMath +{ + // Function selector for ERC721Receiver.onERC721Received + // 0x150b7a02 + bytes4 constant internal ERC721_RECEIVED = bytes4(keccak256("onERC721Received(address,address,uint256,bytes)")); + + // Mapping of tokenId => owner + mapping (uint256 => address) internal owners; + + // Mapping of tokenId => approved address + mapping (uint256 => address) internal approvals; + + // Mapping of owner => number of tokens owned + mapping (address => uint256) internal balances; + + // Mapping of owner => operator => approved + mapping (address => mapping (address => bool)) internal operatorApprovals; + + /// @notice Transfers the ownership of an NFT from one address to another address + /// @dev Throws unless `msg.sender` is the current owner, an authorized + /// operator, or the approved address for this NFT. Throws if `_from` is + /// not the current owner. Throws if `_to` is the zero address. Throws if + /// `_tokenId` is not a valid NFT. When transfer is complete, this function + /// checks if `_to` is a smart contract (code size > 0). If so, it calls + /// `onERC721Received` on `_to` and throws if the return value is not + /// `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`. + /// @param _from The current owner of the NFT + /// @param _to The new owner + /// @param _tokenId The NFT to transfer + /// @param _data Additional data with no specified format, sent in call to `_to` + function safeTransferFrom( + address _from, + address _to, + uint256 _tokenId, + bytes _data + ) + external + { + transferFrom( + _from, + _to, + _tokenId + ); + + uint256 receiverCodeSize; + assembly { + receiverCodeSize := extcodesize(_to) + } + if (receiverCodeSize > 0) { + bytes4 selector = IERC721Receiver(_to).onERC721Received( + msg.sender, + _from, + _tokenId, + _data + ); + require( + selector == ERC721_RECEIVED, + "ERC721_INVALID_SELECTOR" + ); + } + } + + /// @notice Transfers the ownership of an NFT from one address to another address + /// @dev This works identically to the other function with an extra data parameter, + /// except this function just sets data to "". + /// @param _from The current owner of the NFT + /// @param _to The new owner + /// @param _tokenId The NFT to transfer + function safeTransferFrom( + address _from, + address _to, + uint256 _tokenId + ) + external + { + transferFrom( + _from, + _to, + _tokenId + ); + + uint256 receiverCodeSize; + assembly { + receiverCodeSize := extcodesize(_to) + } + if (receiverCodeSize > 0) { + bytes4 selector = IERC721Receiver(_to).onERC721Received( + msg.sender, + _from, + _tokenId, + "" + ); + require( + selector == ERC721_RECEIVED, + "ERC721_INVALID_SELECTOR" + ); + } + } + + /// @notice Change or reaffirm the approved address for an NFT + /// @dev The zero address indicates there is no approved address. + /// Throws unless `msg.sender` is the current NFT owner, or an authorized + /// operator of the current owner. + /// @param _approved The new approved NFT controller + /// @param _tokenId The NFT to approve + function approve(address _approved, uint256 _tokenId) + external + { + address owner = ownerOf(_tokenId); + require( + msg.sender == owner || isApprovedForAll(owner, msg.sender), + "ERC721_INVALID_SENDER" + ); + + approvals[_tokenId] = _approved; + emit Approval( + owner, + _approved, + _tokenId + ); + } + + /// @notice Enable or disable approval for a third party ("operator") to manage + /// all of `msg.sender`'s assets + /// @dev Emits the ApprovalForAll event. The contract MUST allow + /// multiple operators per owner. + /// @param _operator Address to add to the set of authorized operators + /// @param _approved True if the operator is approved, false to revoke approval + function setApprovalForAll(address _operator, bool _approved) + external + { + operatorApprovals[msg.sender][_operator] = _approved; + emit ApprovalForAll( + msg.sender, + _operator, + _approved + ); + } + + /// @notice Count all NFTs assigned to an owner + /// @dev NFTs assigned to the zero address are considered invalid, and this + /// function throws for queries about the zero address. + /// @param _owner An address for whom to query the balance + /// @return The number of NFTs owned by `_owner`, possibly zero + function balanceOf(address _owner) + external + view + returns (uint256) + { + require( + _owner != address(0), + "ERC721_ZERO_OWNER" + ); + return balances[_owner]; + } + + /// @notice Transfer ownership of an NFT -- THE CALLER IS RESPONSIBLE + /// TO CONFIRM THAT `_to` IS CAPABLE OF RECEIVING NFTS OR ELSE + /// THEY MAY BE PERMANENTLY LOST + /// @dev Throws unless `msg.sender` is the current owner, an authorized + /// operator, or the approved address for this NFT. Throws if `_from` is + /// not the current owner. Throws if `_to` is the zero address. Throws if + /// `_tokenId` is not a valid NFT. + /// @param _from The current owner of the NFT + /// @param _to The new owner + /// @param _tokenId The NFT to transfer + function transferFrom( + address _from, + address _to, + uint256 _tokenId + ) + public + { + require( + _to != address(0), + "ERC721_ZERO_TO_ADDRESS" + ); + + address owner = ownerOf(_tokenId); + require( + _from == owner, + "ERC721_OWNER_MISMATCH" + ); + + address spender = msg.sender; + address approvedAddress = getApproved(_tokenId); + require( + spender == owner || + isApprovedForAll(owner, spender) || + approvedAddress == spender, + "ERC721_INVALID_SPENDER" + ); + + if (approvedAddress != address(0)) { + approvals[_tokenId] = address(0); + } + + owners[_tokenId] = _to; + balances[_from] = safeSub(balances[_from], 1); + balances[_to] = safeAdd(balances[_to], 1); + + emit Transfer( + _from, + _to, + _tokenId + ); + } + + /// @notice Find the owner of an NFT + /// @dev NFTs assigned to zero address are considered invalid, and queries + /// about them do throw. + /// @param _tokenId The identifier for an NFT + /// @return The address of the owner of the NFT + function ownerOf(uint256 _tokenId) + public + view + returns (address) + { + address owner = owners[_tokenId]; + require( + owner != address(0), + "ERC721_ZERO_OWNER" + ); + return owner; + } + + /// @notice Get the approved address for a single NFT + /// @dev Throws if `_tokenId` is not a valid NFT. + /// @param _tokenId The NFT to find the approved address for + /// @return The approved address for this NFT, or the zero address if there is none + function getApproved(uint256 _tokenId) + public + view + returns (address) + { + return approvals[_tokenId]; + } + + /// @notice Query if an address is an authorized operator for another address + /// @param _owner The address that owns the NFTs + /// @param _operator The address that acts on behalf of the owner + /// @return True if `_operator` is an approved operator for `_owner`, false otherwise + function isApprovedForAll(address _owner, address _operator) + public + view + returns (bool) + { + return operatorApprovals[_owner][_operator]; + } +} diff --git a/contracts/core/contracts/tokens/ERC721Token/IERC721Receiver.sol b/contracts/core/contracts/tokens/ERC721Token/IERC721Receiver.sol new file mode 100644 index 000000000..8e0e32ab2 --- /dev/null +++ b/contracts/core/contracts/tokens/ERC721Token/IERC721Receiver.sol @@ -0,0 +1,44 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + + +contract IERC721Receiver { + + /// @notice Handle the receipt of an NFT + /// @dev The ERC721 smart contract calls this function on the recipient + /// after a `transfer`. This function MAY throw to revert and reject the + /// transfer. Return of other than the magic value MUST result in the + /// transaction being reverted. + /// Note: the contract address is always the message sender. + /// @param _operator The address which called `safeTransferFrom` function + /// @param _from The address which previously owned the token + /// @param _tokenId The NFT identifier which is being transferred + /// @param _data Additional data with no specified format + /// @return `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))` + /// unless throwing + function onERC721Received( + address _operator, + address _from, + uint256 _tokenId, + bytes _data + ) + external + returns (bytes4); +} diff --git a/contracts/core/contracts/tokens/ERC721Token/IERC721Token.sol b/contracts/core/contracts/tokens/ERC721Token/IERC721Token.sol new file mode 100644 index 000000000..ac992c80d --- /dev/null +++ b/contracts/core/contracts/tokens/ERC721Token/IERC721Token.sol @@ -0,0 +1,158 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + + +contract IERC721Token { + + /// @dev This emits when ownership of any NFT changes by any mechanism. + /// This event emits when NFTs are created (`from` == 0) and destroyed + /// (`to` == 0). Exception: during contract creation, any number of NFTs + /// may be created and assigned without emitting Transfer. At the time of + /// any transfer, the approved address for that NFT (if any) is reset to none. + event Transfer( + address indexed _from, + address indexed _to, + uint256 indexed _tokenId + ); + + /// @dev This emits when the approved address for an NFT is changed or + /// reaffirmed. The zero address indicates there is no approved address. + /// When a Transfer event emits, this also indicates that the approved + /// address for that NFT (if any) is reset to none. + event Approval( + address indexed _owner, + address indexed _approved, + uint256 indexed _tokenId + ); + + /// @dev This emits when an operator is enabled or disabled for an owner. + /// The operator can manage all NFTs of the owner. + event ApprovalForAll( + address indexed _owner, + address indexed _operator, + bool _approved + ); + + /// @notice Transfers the ownership of an NFT from one address to another address + /// @dev Throws unless `msg.sender` is the current owner, an authorized + /// perator, or the approved address for this NFT. Throws if `_from` is + /// not the current owner. Throws if `_to` is the zero address. Throws if + /// `_tokenId` is not a valid NFT. When transfer is complete, this function + /// checks if `_to` is a smart contract (code size > 0). If so, it calls + /// `onERC721Received` on `_to` and throws if the return value is not + /// `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`. + /// @param _from The current owner of the NFT + /// @param _to The new owner + /// @param _tokenId The NFT to transfer + /// @param _data Additional data with no specified format, sent in call to `_to` + function safeTransferFrom( + address _from, + address _to, + uint256 _tokenId, + bytes _data + ) + external; + + /// @notice Transfers the ownership of an NFT from one address to another address + /// @dev This works identically to the other function with an extra data parameter, + /// except this function just sets data to "". + /// @param _from The current owner of the NFT + /// @param _to The new owner + /// @param _tokenId The NFT to transfer + function safeTransferFrom( + address _from, + address _to, + uint256 _tokenId + ) + external; + + /// @notice Change or reaffirm the approved address for an NFT + /// @dev The zero address indicates there is no approved address. + /// Throws unless `msg.sender` is the current NFT owner, or an authorized + /// operator of the current owner. + /// @param _approved The new approved NFT controller + /// @param _tokenId The NFT to approve + function approve(address _approved, uint256 _tokenId) + external; + + /// @notice Enable or disable approval for a third party ("operator") to manage + /// all of `msg.sender`'s assets + /// @dev Emits the ApprovalForAll event. The contract MUST allow + /// multiple operators per owner. + /// @param _operator Address to add to the set of authorized operators + /// @param _approved True if the operator is approved, false to revoke approval + function setApprovalForAll(address _operator, bool _approved) + external; + + /// @notice Count all NFTs assigned to an owner + /// @dev NFTs assigned to the zero address are considered invalid, and this + /// function throws for queries about the zero address. + /// @param _owner An address for whom to query the balance + /// @return The number of NFTs owned by `_owner`, possibly zero + function balanceOf(address _owner) + external + view + returns (uint256); + + /// @notice Transfer ownership of an NFT -- THE CALLER IS RESPONSIBLE + /// TO CONFIRM THAT `_to` IS CAPABLE OF RECEIVING NFTS OR ELSE + /// THEY MAY BE PERMANENTLY LOST + /// @dev Throws unless `msg.sender` is the current owner, an authorized + /// operator, or the approved address for this NFT. Throws if `_from` is + /// not the current owner. Throws if `_to` is the zero address. Throws if + /// `_tokenId` is not a valid NFT. + /// @param _from The current owner of the NFT + /// @param _to The new owner + /// @param _tokenId The NFT to transfer + function transferFrom( + address _from, + address _to, + uint256 _tokenId + ) + public; + + /// @notice Find the owner of an NFT + /// @dev NFTs assigned to zero address are considered invalid, and queries + /// about them do throw. + /// @param _tokenId The identifier for an NFT + /// @return The address of the owner of the NFT + function ownerOf(uint256 _tokenId) + public + view + returns (address); + + /// @notice Get the approved address for a single NFT + /// @dev Throws if `_tokenId` is not a valid NFT. + /// @param _tokenId The NFT to find the approved address for + /// @return The approved address for this NFT, or the zero address if there is none + function getApproved(uint256 _tokenId) + public + view + returns (address); + + /// @notice Query if an address is an authorized operator for another address + /// @param _owner The address that owns the NFTs + /// @param _operator The address that acts on behalf of the owner + /// @return True if `_operator` is an approved operator for `_owner`, false otherwise + function isApprovedForAll(address _owner, address _operator) + public + view + returns (bool); +} diff --git a/contracts/core/contracts/tokens/ERC721Token/MintableERC721Token.sol b/contracts/core/contracts/tokens/ERC721Token/MintableERC721Token.sol new file mode 100644 index 000000000..bc5cd2cc2 --- /dev/null +++ b/contracts/core/contracts/tokens/ERC721Token/MintableERC721Token.sol @@ -0,0 +1,82 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "./ERC721Token.sol"; + + +contract MintableERC721Token is + ERC721Token +{ + /// @dev Function to mint a new token + /// Reverts if the given token ID already exists + /// @param _to Address of the beneficiary that will own the minted token + /// @param _tokenId ID of the token to be minted by the msg.sender + function _mint(address _to, uint256 _tokenId) + internal + { + require( + _to != address(0), + "ERC721_ZERO_TO_ADDRESS" + ); + + address owner = owners[_tokenId]; + require( + owner == address(0), + "ERC721_OWNER_ALREADY_EXISTS" + ); + + owners[_tokenId] = _to; + balances[_to] = safeAdd(balances[_to], 1); + + emit Transfer( + address(0), + _to, + _tokenId + ); + } + + /// @dev Function to burn a token + /// Reverts if the given token ID doesn't exist + /// @param _owner Owner of token with given token ID + /// @param _tokenId ID of the token to be burned by the msg.sender + function _burn(address _owner, uint256 _tokenId) + internal + { + require( + _owner != address(0), + "ERC721_ZERO_OWNER_ADDRESS" + ); + + address owner = owners[_tokenId]; + require( + owner == _owner, + "ERC721_OWNER_MISMATCH" + ); + + owners[_tokenId] = address(0); + balances[_owner] = safeSub(balances[_owner], 1); + + emit Transfer( + _owner, + address(0), + _tokenId + ); + } +} diff --git a/contracts/core/contracts/tokens/EtherToken/IEtherToken.sol b/contracts/core/contracts/tokens/EtherToken/IEtherToken.sol new file mode 100644 index 000000000..9e2e68766 --- /dev/null +++ b/contracts/core/contracts/tokens/EtherToken/IEtherToken.sol @@ -0,0 +1,33 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.24; + +import "../ERC20Token/IERC20Token.sol"; + + +contract IEtherToken is + IERC20Token +{ + function deposit() + public + payable; + + function withdraw(uint256 amount) + public; +} diff --git a/contracts/core/contracts/tokens/EtherToken/WETH9.sol b/contracts/core/contracts/tokens/EtherToken/WETH9.sol new file mode 100644 index 000000000..17876b86d --- /dev/null +++ b/contracts/core/contracts/tokens/EtherToken/WETH9.sol @@ -0,0 +1,758 @@ +// Copyright (C) 2015, 2016, 2017 Dapphub + +// This program is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. + +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License +// along with this program. If not, see <http://www.gnu.org/licenses/>. + +// solhint-disable +pragma solidity ^0.4.18; + + +contract WETH9 { + string public name = "Wrapped Ether"; + string public symbol = "WETH"; + uint8 public decimals = 18; + + event Approval(address indexed _owner, address indexed _spender, uint _value); + event Transfer(address indexed _from, address indexed _to, uint _value); + event Deposit(address indexed _owner, uint _value); + event Withdrawal(address indexed _owner, uint _value); + + mapping (address => uint) public balanceOf; + mapping (address => mapping (address => uint)) public allowance; + + function() public payable { + deposit(); + } + function deposit() public payable { + balanceOf[msg.sender] += msg.value; + Deposit(msg.sender, msg.value); + } + function withdraw(uint wad) public { + require(balanceOf[msg.sender] >= wad); + balanceOf[msg.sender] -= wad; + msg.sender.transfer(wad); + Withdrawal(msg.sender, wad); + } + + function totalSupply() public view returns (uint) { + return this.balance; + } + + function approve(address guy, uint wad) public returns (bool) { + allowance[msg.sender][guy] = wad; + Approval(msg.sender, guy, wad); + return true; + } + + function transfer(address dst, uint wad) public returns (bool) { + return transferFrom(msg.sender, dst, wad); + } + + function transferFrom(address src, address dst, uint wad) + public + returns (bool) + { + require(balanceOf[src] >= wad); + + if (src != msg.sender && allowance[src][msg.sender] != uint(-1)) { + require(allowance[src][msg.sender] >= wad); + allowance[src][msg.sender] -= wad; + } + + balanceOf[src] -= wad; + balanceOf[dst] += wad; + + Transfer(src, dst, wad); + + return true; + } +} + + +/* + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If not, see <http://www.gnu.org/licenses/>. + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + <program> Copyright (C) <year> <name of author> + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +<http://www.gnu.org/licenses/>. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +<http://www.gnu.org/philosophy/why-not-lgpl.html>. + +*/ diff --git a/contracts/core/contracts/tokens/ZRXToken/ERC20Token_v1.sol b/contracts/core/contracts/tokens/ZRXToken/ERC20Token_v1.sol new file mode 100644 index 000000000..4920c4aac --- /dev/null +++ b/contracts/core/contracts/tokens/ZRXToken/ERC20Token_v1.sol @@ -0,0 +1,44 @@ +pragma solidity ^0.4.11; + +import { Token_v1 as Token } from "./Token_v1.sol"; + +contract ERC20Token_v1 is Token { + + function transfer(address _to, uint _value) returns (bool) { + //Default assumes totalSupply can't be over max (2^256 - 1). + if (balances[msg.sender] >= _value && balances[_to] + _value >= balances[_to]) { + balances[msg.sender] -= _value; + balances[_to] += _value; + Transfer(msg.sender, _to, _value); + return true; + } else { return false; } + } + + function transferFrom(address _from, address _to, uint _value) returns (bool) { + if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && balances[_to] + _value >= balances[_to]) { + balances[_to] += _value; + balances[_from] -= _value; + allowed[_from][msg.sender] -= _value; + Transfer(_from, _to, _value); + return true; + } else { return false; } + } + + function balanceOf(address _owner) constant returns (uint) { + return balances[_owner]; + } + + function approve(address _spender, uint _value) returns (bool) { + allowed[msg.sender][_spender] = _value; + Approval(msg.sender, _spender, _value); + return true; + } + + function allowance(address _owner, address _spender) constant returns (uint) { + return allowed[_owner][_spender]; + } + + mapping (address => uint) balances; + mapping (address => mapping (address => uint)) allowed; + uint public totalSupply; +} diff --git a/contracts/core/contracts/tokens/ZRXToken/Token_v1.sol b/contracts/core/contracts/tokens/ZRXToken/Token_v1.sol new file mode 100644 index 000000000..de619fb7e --- /dev/null +++ b/contracts/core/contracts/tokens/ZRXToken/Token_v1.sol @@ -0,0 +1,39 @@ +pragma solidity ^0.4.11; + +contract Token_v1 { + + /// @return total amount of tokens + function totalSupply() constant returns (uint supply) {} + + /// @param _owner The address from which the balance will be retrieved + /// @return The balance + function balanceOf(address _owner) constant returns (uint balance) {} + + /// @notice send `_value` token to `_to` from `msg.sender` + /// @param _to The address of the recipient + /// @param _value The amount of token to be transferred + /// @return Whether the transfer was successful or not + function transfer(address _to, uint _value) returns (bool success) {} + + /// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from` + /// @param _from The address of the sender + /// @param _to The address of the recipient + /// @param _value The amount of token to be transferred + /// @return Whether the transfer was successful or not + function transferFrom(address _from, address _to, uint _value) returns (bool success) {} + + /// @notice `msg.sender` approves `_addr` to spend `_value` tokens + /// @param _spender The address of the account able to transfer the tokens + /// @param _value The amount of wei to be approved for transfer + /// @return Whether the approval was successful or not + function approve(address _spender, uint _value) returns (bool success) {} + + /// @param _owner The address of the account owning tokens + /// @param _spender The address of the account able to transfer the tokens + /// @return Amount of remaining tokens allowed to spent + function allowance(address _owner, address _spender) constant returns (uint remaining) {} + + event Transfer(address indexed _from, address indexed _to, uint _value); + event Approval(address indexed _owner, address indexed _spender, uint _value); +} + diff --git a/contracts/core/contracts/tokens/ZRXToken/UnlimitedAllowanceToken_v1.sol b/contracts/core/contracts/tokens/ZRXToken/UnlimitedAllowanceToken_v1.sol new file mode 100644 index 000000000..bf1b0335a --- /dev/null +++ b/contracts/core/contracts/tokens/ZRXToken/UnlimitedAllowanceToken_v1.sol @@ -0,0 +1,52 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity ^0.4.11; + +import { ERC20Token_v1 as ERC20Token } from "./ERC20Token_v1.sol"; + +contract UnlimitedAllowanceToken_v1 is ERC20Token { + + uint constant MAX_UINT = 2**256 - 1; + + /// @dev ERC20 transferFrom, modified such that an allowance of MAX_UINT represents an unlimited allowance. + /// @param _from Address to transfer from. + /// @param _to Address to transfer to. + /// @param _value Amount to transfer. + /// @return Success of transfer. + function transferFrom(address _from, address _to, uint _value) + public + returns (bool) + { + uint allowance = allowed[_from][msg.sender]; + if (balances[_from] >= _value + && allowance >= _value + && balances[_to] + _value >= balances[_to] + ) { + balances[_to] += _value; + balances[_from] -= _value; + if (allowance < MAX_UINT) { + allowed[_from][msg.sender] -= _value; + } + Transfer(_from, _to, _value); + return true; + } else { + return false; + } + } +} diff --git a/contracts/core/contracts/tokens/ZRXToken/ZRXToken.sol b/contracts/core/contracts/tokens/ZRXToken/ZRXToken.sol new file mode 100644 index 000000000..831e1822c --- /dev/null +++ b/contracts/core/contracts/tokens/ZRXToken/ZRXToken.sol @@ -0,0 +1,41 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity 0.4.11; + +// solhint-disable-next-line max-line-length +import { UnlimitedAllowanceToken_v1 as UnlimitedAllowanceToken } from "./UnlimitedAllowanceToken_v1.sol"; + + +contract ZRXToken is + UnlimitedAllowanceToken +{ + + // solhint-disable const-name-snakecase + uint8 constant public decimals = 18; + uint256 public totalSupply = 10**27; // 1 billion tokens, 18 decimal places + string constant public name = "0x Protocol Token"; + string constant public symbol = "ZRX"; + // solhint-enableconst-name-snakecase + + function ZRXToken() + public + { + balances[msg.sender] = totalSupply; + } +} diff --git a/contracts/core/package.json b/contracts/core/package.json new file mode 100644 index 000000000..43fa9370e --- /dev/null +++ b/contracts/core/package.json @@ -0,0 +1,93 @@ +{ + "private": true, + "name": "@0x/contracts-core", + "version": "2.1.56", + "engines": { + "node": ">=6.12" + }, + "description": "Smart contract components of 0x protocol", + "main": "lib/src/index.js", + "directories": { + "test": "test" + }, + "scripts": { + "build": "yarn pre_build && tsc -b", + "build:ci": "yarn build", + "pre_build": "run-s compile generate_contract_wrappers", + "test": "yarn run_mocha", + "rebuild_and_test": "run-s build test", + "test:coverage": "SOLIDITY_COVERAGE=true run-s build run_mocha coverage:report:text coverage:report:lcov", + "test:profiler": "SOLIDITY_PROFILER=true run-s build run_mocha profiler:report:html", + "test:trace": "SOLIDITY_REVERT_TRACE=true run-s build run_mocha", + "run_mocha": + "mocha --require source-map-support/register --require make-promises-safe 'lib/test/**/*.js' --timeout 100000 --bail --exit", + "compile": "sol-compiler --contracts-dir contracts", + "clean": "shx rm -rf lib generated-artifacts generated-wrappers", + "generate_contract_wrappers": "abi-gen --abis ${npm_package_config_abis} --template ../../node_modules/@0x/abi-gen-templates/contract.handlebars --partials '../../node_modules/@0x/abi-gen-templates/partials/**/*.handlebars' --output generated-wrappers --backend ethers", + "lint": "tslint --format stylish --project . --exclude ./generated-wrappers/**/* --exclude ./generated-artifacts/**/* --exclude **/lib/**/* && yarn lint-contracts", + "coverage:report:text": "istanbul report text", + "coverage:report:html": "istanbul report html && open coverage/index.html", + "profiler:report:html": "istanbul report html && open coverage/index.html", + "coverage:report:lcov": "istanbul report lcov", + "test:circleci": "yarn test", + "lint-contracts": "solhint contracts/**/**/**/**/*.sol" + }, + "config": { + "abis": "generated-artifacts/@(AssetProxyOwner|DummyERC20Token|DummyERC721Receiver|DummyERC721Token|DummyMultipleReturnERC20Token|DummyNoReturnERC20Token|DutchAuction|ERC20Token|ERC20Proxy|ERC721Token|ERC721Proxy|Forwarder|Exchange|ExchangeWrapper|IAssetData|IAssetProxy|InvalidERC721Receiver|MixinAuthorizable|MultiAssetProxy|OrderValidator|ReentrantERC20Token|TestAssetProxyOwner|TestAssetProxyDispatcher|TestConstants|TestExchangeInternals|TestLibBytes|TestSignatureValidator|TestStaticCallReceiver|Validator|Wallet|Whitelist|WETH9|ZRXToken).json" + }, + "repository": { + "type": "git", + "url": "https://github.com/0xProject/0x-monorepo.git" + }, + "license": "Apache-2.0", + "bugs": { + "url": "https://github.com/0xProject/0x-monorepo/issues" + }, + "homepage": "https://github.com/0xProject/0x-monorepo/contracts/core/README.md", + "devDependencies": { + "@0x/contracts-test-utils": "^1.0.0", + "@0x/abi-gen": "^1.0.17", + "@0x/dev-utils": "^1.0.19", + "@0x/sol-compiler": "^1.1.14", + "@0x/sol-cov": "^2.1.14", + "@0x/subproviders": "^2.1.6", + "@0x/tslint-config": "^1.0.10", + "@types/bn.js": "^4.11.0", + "@types/lodash": "4.14.104", + "@types/node": "*", + "@types/yargs": "^10.0.0", + "chai": "^4.0.1", + "chai-as-promised": "^7.1.0", + "chai-bignumber": "^2.0.1", + "dirty-chai": "^2.0.1", + "make-promises-safe": "^1.1.0", + "ethereumjs-abi": "0.6.5", + "mocha": "^4.1.0", + "npm-run-all": "^4.1.2", + "shx": "^0.2.2", + "solc": "^0.4.24", + "solhint": "^1.2.1", + "tslint": "5.11.0", + "typescript": "3.0.1", + "yargs": "^10.0.3" + }, + "dependencies": { + "@0x/base-contract": "^3.0.8", + "@0x/order-utils": "^3.0.4", + "@0x/contracts-multisig": "^1.0.0", + "@0x/contracts-utils": "^1.0.0", + "@0x/contracts-libs": "^1.0.0", + "@0x/types": "^1.3.0", + "@0x/typescript-typings": "^3.0.4", + "@0x/utils": "^2.0.6", + "@0x/web3-wrapper": "^3.1.6", + "@types/js-combinatorics": "^0.5.29", + "bn.js": "^4.11.8", + "ethereum-types": "^1.1.2", + "ethereumjs-util": "^5.1.1", + "lodash": "^4.17.5" + }, + "publishConfig": { + "access": "public" + } +} diff --git a/contracts/core/src/artifacts/index.ts b/contracts/core/src/artifacts/index.ts new file mode 100644 index 000000000..d578c36fe --- /dev/null +++ b/contracts/core/src/artifacts/index.ts @@ -0,0 +1,73 @@ +import { ContractArtifact } from 'ethereum-types'; + +import * as AssetProxyOwner from '../../generated-artifacts/AssetProxyOwner.json'; +import * as DummyERC20Token from '../../generated-artifacts/DummyERC20Token.json'; +import * as DummyERC721Receiver from '../../generated-artifacts/DummyERC721Receiver.json'; +import * as DummyERC721Token from '../../generated-artifacts/DummyERC721Token.json'; +import * as DummyMultipleReturnERC20Token from '../../generated-artifacts/DummyMultipleReturnERC20Token.json'; +import * as DummyNoReturnERC20Token from '../../generated-artifacts/DummyNoReturnERC20Token.json'; +import * as DutchAuction from '../../generated-artifacts/DutchAuction.json'; +import * as ERC20Proxy from '../../generated-artifacts/ERC20Proxy.json'; +import * as ERC20Token from '../../generated-artifacts/ERC20Token.json'; +import * as ERC721Proxy from '../../generated-artifacts/ERC721Proxy.json'; +import * as ERC721Token from '../../generated-artifacts/ERC721Token.json'; +import * as Exchange from '../../generated-artifacts/Exchange.json'; +import * as ExchangeWrapper from '../../generated-artifacts/ExchangeWrapper.json'; +import * as Forwarder from '../../generated-artifacts/Forwarder.json'; +import * as IAssetData from '../../generated-artifacts/IAssetData.json'; +import * as IAssetProxy from '../../generated-artifacts/IAssetProxy.json'; +import * as InvalidERC721Receiver from '../../generated-artifacts/InvalidERC721Receiver.json'; +import * as IValidator from '../../generated-artifacts/IValidator.json'; +import * as IWallet from '../../generated-artifacts/IWallet.json'; +import * as MixinAuthorizable from '../../generated-artifacts/MixinAuthorizable.json'; +import * as MultiAssetProxy from '../../generated-artifacts/MultiAssetProxy.json'; +import * as OrderValidator from '../../generated-artifacts/OrderValidator.json'; +import * as ReentrantERC20Token from '../../generated-artifacts/ReentrantERC20Token.json'; +import * as TestAssetProxyDispatcher from '../../generated-artifacts/TestAssetProxyDispatcher.json'; +import * as TestAssetProxyOwner from '../../generated-artifacts/TestAssetProxyOwner.json'; +import * as TestExchangeInternals from '../../generated-artifacts/TestExchangeInternals.json'; +import * as TestSignatureValidator from '../../generated-artifacts/TestSignatureValidator.json'; +import * as TestStaticCallReceiver from '../../generated-artifacts/TestStaticCallReceiver.json'; +import * as Validator from '../../generated-artifacts/Validator.json'; +import * as Wallet from '../../generated-artifacts/Wallet.json'; +import * as WETH9 from '../../generated-artifacts/WETH9.json'; +import * as Whitelist from '../../generated-artifacts/Whitelist.json'; +import * as ZRXToken from '../../generated-artifacts/ZRXToken.json'; + +export const artifacts = { + AssetProxyOwner: AssetProxyOwner as ContractArtifact, + DummyERC20Token: DummyERC20Token as ContractArtifact, + DummyERC721Receiver: DummyERC721Receiver as ContractArtifact, + DummyERC721Token: DummyERC721Token as ContractArtifact, + DummyMultipleReturnERC20Token: DummyMultipleReturnERC20Token as ContractArtifact, + DummyNoReturnERC20Token: DummyNoReturnERC20Token as ContractArtifact, + DutchAuction: DutchAuction as ContractArtifact, + ERC20Proxy: ERC20Proxy as ContractArtifact, + ERC20Token: ERC20Token as ContractArtifact, + ERC721Proxy: ERC721Proxy as ContractArtifact, + ERC721Token: ERC721Token as ContractArtifact, + Exchange: Exchange as ContractArtifact, + ExchangeWrapper: ExchangeWrapper as ContractArtifact, + Forwarder: Forwarder as ContractArtifact, + IAssetData: IAssetData as ContractArtifact, + IAssetProxy: IAssetProxy as ContractArtifact, + IValidator: IValidator as ContractArtifact, + IWallet: IWallet as ContractArtifact, + InvalidERC721Receiver: InvalidERC721Receiver as ContractArtifact, + MixinAuthorizable: MixinAuthorizable as ContractArtifact, + MultiAssetProxy: MultiAssetProxy as ContractArtifact, + OrderValidator: OrderValidator as ContractArtifact, + ReentrantERC20Token: ReentrantERC20Token as ContractArtifact, + TestAssetProxyDispatcher: TestAssetProxyDispatcher as ContractArtifact, + TestAssetProxyOwner: TestAssetProxyOwner as ContractArtifact, + TestExchangeInternals: TestExchangeInternals as ContractArtifact, + TestSignatureValidator: TestSignatureValidator as ContractArtifact, + TestStaticCallReceiver: TestStaticCallReceiver as ContractArtifact, + Validator: Validator as ContractArtifact, + WETH9: WETH9 as ContractArtifact, + Wallet: Wallet as ContractArtifact, + Whitelist: Whitelist as ContractArtifact, + // Note(albrow): "as any" hack still required here because ZRXToken does not + // conform to the v2 artifact type. + ZRXToken: (ZRXToken as any) as ContractArtifact, +}; diff --git a/contracts/core/src/wrappers/index.ts b/contracts/core/src/wrappers/index.ts new file mode 100644 index 000000000..ed9d8ef47 --- /dev/null +++ b/contracts/core/src/wrappers/index.ts @@ -0,0 +1,30 @@ +export * from '../../generated-wrappers/asset_proxy_owner'; +export * from '../../generated-wrappers/dummy_erc20_token'; +export * from '../../generated-wrappers/dummy_erc721_receiver'; +export * from '../../generated-wrappers/dummy_erc721_token'; +export * from '../../generated-wrappers/dummy_multiple_return_erc20_token'; +export * from '../../generated-wrappers/dummy_no_return_erc20_token'; +export * from '../../generated-wrappers/dutch_auction'; +export * from '../../generated-wrappers/erc20_proxy'; +export * from '../../generated-wrappers/erc721_proxy'; +export * from '../../generated-wrappers/erc20_token'; +export * from '../../generated-wrappers/erc721_token'; +export * from '../../generated-wrappers/exchange'; +export * from '../../generated-wrappers/exchange_wrapper'; +export * from '../../generated-wrappers/forwarder'; +export * from '../../generated-wrappers/i_asset_data'; +export * from '../../generated-wrappers/i_asset_proxy'; +export * from '../../generated-wrappers/invalid_erc721_receiver'; +export * from '../../generated-wrappers/mixin_authorizable'; +export * from '../../generated-wrappers/order_validator'; +export * from '../../generated-wrappers/reentrant_erc20_token'; +export * from '../../generated-wrappers/test_asset_proxy_dispatcher'; +export * from '../../generated-wrappers/test_asset_proxy_owner'; +export * from '../../generated-wrappers/test_exchange_internals'; +export * from '../../generated-wrappers/test_signature_validator'; +export * from '../../generated-wrappers/test_static_call_receiver'; +export * from '../../generated-wrappers/validator'; +export * from '../../generated-wrappers/wallet'; +export * from '../../generated-wrappers/weth9'; +export * from '../../generated-wrappers/whitelist'; +export * from '../../generated-wrappers/zrx_token'; diff --git a/contracts/core/test/asset_proxy/authorizable.ts b/contracts/core/test/asset_proxy/authorizable.ts new file mode 100644 index 000000000..853d18be0 --- /dev/null +++ b/contracts/core/test/asset_proxy/authorizable.ts @@ -0,0 +1,211 @@ +import { + chaiSetup, + constants, + expectTransactionFailedAsync, + provider, + txDefaults, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { RevertReason } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import * as chai from 'chai'; +import * as _ from 'lodash'; + +import { MixinAuthorizableContract } from '../../generated-wrappers/mixin_authorizable'; +import { artifacts } from '../../src/artifacts'; + +chaiSetup.configure(); +const expect = chai.expect; +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); + +describe('Authorizable', () => { + let owner: string; + let notOwner: string; + let address: string; + let authorizable: MixinAuthorizableContract; + + before(async () => { + await blockchainLifecycle.startAsync(); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + before(async () => { + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + [owner, address, notOwner] = _.slice(accounts, 0, 3); + authorizable = await MixinAuthorizableContract.deployFrom0xArtifactAsync( + artifacts.MixinAuthorizable, + provider, + txDefaults, + ); + }); + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + describe('addAuthorizedAddress', () => { + it('should throw if not called by owner', async () => { + return expectTransactionFailedAsync( + authorizable.addAuthorizedAddress.sendTransactionAsync(notOwner, { from: notOwner }), + RevertReason.OnlyContractOwner, + ); + }); + it('should allow owner to add an authorized address', async () => { + await web3Wrapper.awaitTransactionSuccessAsync( + await authorizable.addAuthorizedAddress.sendTransactionAsync(address, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const isAuthorized = await authorizable.authorized.callAsync(address); + expect(isAuthorized).to.be.true(); + }); + it('should throw if owner attempts to authorize a duplicate address', async () => { + await web3Wrapper.awaitTransactionSuccessAsync( + await authorizable.addAuthorizedAddress.sendTransactionAsync(address, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + return expectTransactionFailedAsync( + authorizable.addAuthorizedAddress.sendTransactionAsync(address, { from: owner }), + RevertReason.TargetAlreadyAuthorized, + ); + }); + }); + + describe('removeAuthorizedAddress', () => { + it('should throw if not called by owner', async () => { + await web3Wrapper.awaitTransactionSuccessAsync( + await authorizable.addAuthorizedAddress.sendTransactionAsync(address, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + return expectTransactionFailedAsync( + authorizable.removeAuthorizedAddress.sendTransactionAsync(address, { + from: notOwner, + }), + RevertReason.OnlyContractOwner, + ); + }); + + it('should allow owner to remove an authorized address', async () => { + await web3Wrapper.awaitTransactionSuccessAsync( + await authorizable.addAuthorizedAddress.sendTransactionAsync(address, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await authorizable.removeAuthorizedAddress.sendTransactionAsync(address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const isAuthorized = await authorizable.authorized.callAsync(address); + expect(isAuthorized).to.be.false(); + }); + + it('should throw if owner attempts to remove an address that is not authorized', async () => { + return expectTransactionFailedAsync( + authorizable.removeAuthorizedAddress.sendTransactionAsync(address, { + from: owner, + }), + RevertReason.TargetNotAuthorized, + ); + }); + }); + + describe('removeAuthorizedAddressAtIndex', () => { + it('should throw if not called by owner', async () => { + await web3Wrapper.awaitTransactionSuccessAsync( + await authorizable.addAuthorizedAddress.sendTransactionAsync(address, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const index = new BigNumber(0); + return expectTransactionFailedAsync( + authorizable.removeAuthorizedAddressAtIndex.sendTransactionAsync(address, index, { + from: notOwner, + }), + RevertReason.OnlyContractOwner, + ); + }); + it('should throw if index is >= authorities.length', async () => { + await web3Wrapper.awaitTransactionSuccessAsync( + await authorizable.addAuthorizedAddress.sendTransactionAsync(address, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const index = new BigNumber(1); + return expectTransactionFailedAsync( + authorizable.removeAuthorizedAddressAtIndex.sendTransactionAsync(address, index, { + from: owner, + }), + RevertReason.IndexOutOfBounds, + ); + }); + it('should throw if owner attempts to remove an address that is not authorized', async () => { + const index = new BigNumber(0); + return expectTransactionFailedAsync( + authorizable.removeAuthorizedAddressAtIndex.sendTransactionAsync(address, index, { + from: owner, + }), + RevertReason.TargetNotAuthorized, + ); + }); + it('should throw if address at index does not match target', async () => { + const address1 = address; + const address2 = notOwner; + await web3Wrapper.awaitTransactionSuccessAsync( + await authorizable.addAuthorizedAddress.sendTransactionAsync(address1, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await authorizable.addAuthorizedAddress.sendTransactionAsync(address2, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const address1Index = new BigNumber(0); + return expectTransactionFailedAsync( + authorizable.removeAuthorizedAddressAtIndex.sendTransactionAsync(address2, address1Index, { + from: owner, + }), + RevertReason.AuthorizedAddressMismatch, + ); + }); + it('should allow owner to remove an authorized address', async () => { + await web3Wrapper.awaitTransactionSuccessAsync( + await authorizable.addAuthorizedAddress.sendTransactionAsync(address, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const index = new BigNumber(0); + await web3Wrapper.awaitTransactionSuccessAsync( + await authorizable.removeAuthorizedAddressAtIndex.sendTransactionAsync(address, index, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const isAuthorized = await authorizable.authorized.callAsync(address); + expect(isAuthorized).to.be.false(); + }); + }); + + describe('getAuthorizedAddresses', () => { + it('should return all authorized addresses', async () => { + const initial = await authorizable.getAuthorizedAddresses.callAsync(); + expect(initial).to.have.length(0); + await web3Wrapper.awaitTransactionSuccessAsync( + await authorizable.addAuthorizedAddress.sendTransactionAsync(address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const afterAdd = await authorizable.getAuthorizedAddresses.callAsync(); + expect(afterAdd).to.have.length(1); + expect(afterAdd).to.include(address); + + await web3Wrapper.awaitTransactionSuccessAsync( + await authorizable.removeAuthorizedAddress.sendTransactionAsync(address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const afterRemove = await authorizable.getAuthorizedAddresses.callAsync(); + expect(afterRemove).to.have.length(0); + }); + }); +}); diff --git a/contracts/core/test/asset_proxy/proxies.ts b/contracts/core/test/asset_proxy/proxies.ts new file mode 100644 index 000000000..2527b0fbf --- /dev/null +++ b/contracts/core/test/asset_proxy/proxies.ts @@ -0,0 +1,1251 @@ +import { + chaiSetup, + constants, + expectTransactionFailedAsync, + expectTransactionFailedWithoutReasonAsync, + LogDecoder, + provider, + txDefaults, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { assetDataUtils } from '@0x/order-utils'; +import { RevertReason } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import * as chai from 'chai'; +import * as _ from 'lodash'; + +import { DummyERC20TokenContract } from '../../generated-wrappers/dummy_erc20_token'; +import { DummyERC721ReceiverContract } from '../../generated-wrappers/dummy_erc721_receiver'; +import { DummyERC721TokenContract } from '../../generated-wrappers/dummy_erc721_token'; +import { DummyMultipleReturnERC20TokenContract } from '../../generated-wrappers/dummy_multiple_return_erc20_token'; +import { DummyNoReturnERC20TokenContract } from '../../generated-wrappers/dummy_no_return_erc20_token'; +import { ERC20ProxyContract } from '../../generated-wrappers/erc20_proxy'; +import { ERC721ProxyContract } from '../../generated-wrappers/erc721_proxy'; +import { IAssetDataContract } from '../../generated-wrappers/i_asset_data'; +import { IAssetProxyContract } from '../../generated-wrappers/i_asset_proxy'; +import { MultiAssetProxyContract } from '../../generated-wrappers/multi_asset_proxy'; +import { artifacts } from '../../src/artifacts'; +import { ERC20Wrapper } from '../utils/erc20_wrapper'; +import { ERC721Wrapper } from '../utils/erc721_wrapper'; + +chaiSetup.configure(); +const expect = chai.expect; +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); +const assetProxyInterface = new IAssetProxyContract( + artifacts.IAssetProxy.compilerOutput.abi, + constants.NULL_ADDRESS, + provider, +); +const assetDataInterface = new IAssetDataContract( + artifacts.IAssetData.compilerOutput.abi, + constants.NULL_ADDRESS, + provider, +); + +// tslint:disable:no-unnecessary-type-assertion +describe('Asset Transfer Proxies', () => { + let owner: string; + let notAuthorized: string; + let authorized: string; + let fromAddress: string; + let toAddress: string; + + let erc20TokenA: DummyERC20TokenContract; + let erc20TokenB: DummyERC20TokenContract; + let erc721TokenA: DummyERC721TokenContract; + let erc721TokenB: DummyERC721TokenContract; + let erc721Receiver: DummyERC721ReceiverContract; + let erc20Proxy: ERC20ProxyContract; + let erc721Proxy: ERC721ProxyContract; + let noReturnErc20Token: DummyNoReturnERC20TokenContract; + let multipleReturnErc20Token: DummyMultipleReturnERC20TokenContract; + let multiAssetProxy: MultiAssetProxyContract; + + let erc20Wrapper: ERC20Wrapper; + let erc721Wrapper: ERC721Wrapper; + let erc721AFromTokenId: BigNumber; + let erc721BFromTokenId: BigNumber; + + before(async () => { + await blockchainLifecycle.startAsync(); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + before(async () => { + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + const usedAddresses = ([owner, notAuthorized, authorized, fromAddress, toAddress] = _.slice(accounts, 0, 5)); + + erc20Wrapper = new ERC20Wrapper(provider, usedAddresses, owner); + erc721Wrapper = new ERC721Wrapper(provider, usedAddresses, owner); + + // Deploy AssetProxies + erc20Proxy = await erc20Wrapper.deployProxyAsync(); + erc721Proxy = await erc721Wrapper.deployProxyAsync(); + multiAssetProxy = await MultiAssetProxyContract.deployFrom0xArtifactAsync( + artifacts.MultiAssetProxy, + provider, + txDefaults, + ); + + // Configure ERC20Proxy + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Proxy.addAuthorizedAddress.sendTransactionAsync(authorized, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Proxy.addAuthorizedAddress.sendTransactionAsync(multiAssetProxy.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + // Configure ERC721Proxy + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Proxy.addAuthorizedAddress.sendTransactionAsync(authorized, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Proxy.addAuthorizedAddress.sendTransactionAsync(multiAssetProxy.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + // Configure MultiAssetProxy + await web3Wrapper.awaitTransactionSuccessAsync( + await multiAssetProxy.addAuthorizedAddress.sendTransactionAsync(authorized, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await multiAssetProxy.registerAssetProxy.sendTransactionAsync(erc20Proxy.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await multiAssetProxy.registerAssetProxy.sendTransactionAsync(erc721Proxy.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + // Deploy and configure ERC20 tokens + const numDummyErc20ToDeploy = 2; + [erc20TokenA, erc20TokenB] = await erc20Wrapper.deployDummyTokensAsync( + numDummyErc20ToDeploy, + constants.DUMMY_TOKEN_DECIMALS, + ); + noReturnErc20Token = await DummyNoReturnERC20TokenContract.deployFrom0xArtifactAsync( + artifacts.DummyNoReturnERC20Token, + provider, + txDefaults, + constants.DUMMY_TOKEN_NAME, + constants.DUMMY_TOKEN_SYMBOL, + constants.DUMMY_TOKEN_DECIMALS, + constants.DUMMY_TOKEN_TOTAL_SUPPLY, + ); + multipleReturnErc20Token = await DummyMultipleReturnERC20TokenContract.deployFrom0xArtifactAsync( + artifacts.DummyMultipleReturnERC20Token, + provider, + txDefaults, + constants.DUMMY_TOKEN_NAME, + constants.DUMMY_TOKEN_SYMBOL, + constants.DUMMY_TOKEN_DECIMALS, + constants.DUMMY_TOKEN_TOTAL_SUPPLY, + ); + + await erc20Wrapper.setBalancesAndAllowancesAsync(); + await web3Wrapper.awaitTransactionSuccessAsync( + await noReturnErc20Token.setBalance.sendTransactionAsync(fromAddress, constants.INITIAL_ERC20_BALANCE), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await noReturnErc20Token.approve.sendTransactionAsync( + erc20Proxy.address, + constants.INITIAL_ERC20_ALLOWANCE, + { from: fromAddress }, + ), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await multipleReturnErc20Token.setBalance.sendTransactionAsync( + fromAddress, + constants.INITIAL_ERC20_BALANCE, + ), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await multipleReturnErc20Token.approve.sendTransactionAsync( + erc20Proxy.address, + constants.INITIAL_ERC20_ALLOWANCE, + { from: fromAddress }, + ), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + // Deploy and configure ERC721 tokens and receiver + [erc721TokenA, erc721TokenB] = await erc721Wrapper.deployDummyTokensAsync(); + erc721Receiver = await DummyERC721ReceiverContract.deployFrom0xArtifactAsync( + artifacts.DummyERC721Receiver, + provider, + txDefaults, + ); + + await erc721Wrapper.setBalancesAndAllowancesAsync(); + const erc721Balances = await erc721Wrapper.getBalancesAsync(); + erc721AFromTokenId = erc721Balances[fromAddress][erc721TokenA.address][0]; + erc721BFromTokenId = erc721Balances[fromAddress][erc721TokenB.address][0]; + }); + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + + describe('ERC20Proxy', () => { + it('should revert if undefined function is called', async () => { + const undefinedSelector = '0x01020304'; + await expectTransactionFailedWithoutReasonAsync( + web3Wrapper.sendTransactionAsync({ + from: owner, + to: erc20Proxy.address, + value: constants.ZERO_AMOUNT, + data: undefinedSelector, + }), + ); + }); + it('should have an id of 0xf47261b0', async () => { + const proxyId = await erc20Proxy.getProxyId.callAsync(); + const expectedProxyId = '0xf47261b0'; + expect(proxyId).to.equal(expectedProxyId); + }); + describe('transferFrom', () => { + it('should successfully transfer tokens', async () => { + // Construct ERC20 asset data + const encodedAssetData = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + // Perform a transfer from fromAddress to toAddress + const erc20Balances = await erc20Wrapper.getBalancesAsync(); + const amount = new BigNumber(10); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + encodedAssetData, + fromAddress, + toAddress, + amount, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await web3Wrapper.sendTransactionAsync({ + to: erc20Proxy.address, + data, + from: authorized, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + // Verify transfer was successful + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances[fromAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[fromAddress][erc20TokenA.address].minus(amount), + ); + expect(newBalances[toAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[toAddress][erc20TokenA.address].add(amount), + ); + }); + + it('should successfully transfer tokens that do not return a value', async () => { + // Construct ERC20 asset data + const encodedAssetData = assetDataUtils.encodeERC20AssetData(noReturnErc20Token.address); + // Perform a transfer from fromAddress to toAddress + const initialFromBalance = await noReturnErc20Token.balanceOf.callAsync(fromAddress); + const initialToBalance = await noReturnErc20Token.balanceOf.callAsync(toAddress); + const amount = new BigNumber(10); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + encodedAssetData, + fromAddress, + toAddress, + amount, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await web3Wrapper.sendTransactionAsync({ + to: erc20Proxy.address, + data, + from: authorized, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + // Verify transfer was successful + const newFromBalance = await noReturnErc20Token.balanceOf.callAsync(fromAddress); + const newToBalance = await noReturnErc20Token.balanceOf.callAsync(toAddress); + expect(newFromBalance).to.be.bignumber.equal(initialFromBalance.minus(amount)); + expect(newToBalance).to.be.bignumber.equal(initialToBalance.plus(amount)); + }); + + it('should successfully transfer tokens and ignore extra assetData', async () => { + // Construct ERC20 asset data + const extraData = '0102030405060708'; + const encodedAssetData = `${assetDataUtils.encodeERC20AssetData(erc20TokenA.address)}${extraData}`; + // Perform a transfer from fromAddress to toAddress + const erc20Balances = await erc20Wrapper.getBalancesAsync(); + const amount = new BigNumber(10); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + encodedAssetData, + fromAddress, + toAddress, + amount, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await web3Wrapper.sendTransactionAsync({ + to: erc20Proxy.address, + data, + from: authorized, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + // Verify transfer was successful + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances[fromAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[fromAddress][erc20TokenA.address].minus(amount), + ); + expect(newBalances[toAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[toAddress][erc20TokenA.address].add(amount), + ); + }); + + it('should do nothing if transferring 0 amount of a token', async () => { + // Construct ERC20 asset data + const encodedAssetData = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + // Perform a transfer from fromAddress to toAddress + const erc20Balances = await erc20Wrapper.getBalancesAsync(); + const amount = new BigNumber(0); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + encodedAssetData, + fromAddress, + toAddress, + amount, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await web3Wrapper.sendTransactionAsync({ + to: erc20Proxy.address, + data, + from: authorized, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + // Verify transfer was successful + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances[fromAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[fromAddress][erc20TokenA.address], + ); + expect(newBalances[toAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[toAddress][erc20TokenA.address], + ); + }); + + it('should revert if allowances are too low', async () => { + // Construct ERC20 asset data + const encodedAssetData = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + // Create allowance less than transfer amount. Set allowance on proxy. + const allowance = new BigNumber(0); + const amount = new BigNumber(10); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + encodedAssetData, + fromAddress, + toAddress, + amount, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20TokenA.approve.sendTransactionAsync(erc20Proxy.address, allowance, { + from: fromAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const erc20Balances = await erc20Wrapper.getBalancesAsync(); + // Perform a transfer; expect this to fail. + await expectTransactionFailedAsync( + web3Wrapper.sendTransactionAsync({ + to: erc20Proxy.address, + data, + from: authorized, + }), + RevertReason.TransferFailed, + ); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.deep.equal(erc20Balances); + }); + + it('should revert if allowances are too low and token does not return a value', async () => { + // Construct ERC20 asset data + const encodedAssetData = assetDataUtils.encodeERC20AssetData(noReturnErc20Token.address); + // Create allowance less than transfer amount. Set allowance on proxy. + const allowance = new BigNumber(0); + const amount = new BigNumber(10); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + encodedAssetData, + fromAddress, + toAddress, + amount, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await noReturnErc20Token.approve.sendTransactionAsync(erc20Proxy.address, allowance, { + from: fromAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const initialFromBalance = await noReturnErc20Token.balanceOf.callAsync(fromAddress); + const initialToBalance = await noReturnErc20Token.balanceOf.callAsync(toAddress); + // Perform a transfer; expect this to fail. + await expectTransactionFailedAsync( + web3Wrapper.sendTransactionAsync({ + to: erc20Proxy.address, + data, + from: authorized, + }), + RevertReason.TransferFailed, + ); + const newFromBalance = await noReturnErc20Token.balanceOf.callAsync(fromAddress); + const newToBalance = await noReturnErc20Token.balanceOf.callAsync(toAddress); + expect(newFromBalance).to.be.bignumber.equal(initialFromBalance); + expect(newToBalance).to.be.bignumber.equal(initialToBalance); + }); + + it('should revert if caller is not authorized', async () => { + // Construct ERC20 asset data + const encodedAssetData = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + // Perform a transfer from fromAddress to toAddress + const amount = new BigNumber(10); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + encodedAssetData, + fromAddress, + toAddress, + amount, + ); + const erc20Balances = await erc20Wrapper.getBalancesAsync(); + await expectTransactionFailedAsync( + web3Wrapper.sendTransactionAsync({ + to: erc20Proxy.address, + data, + from: notAuthorized, + }), + RevertReason.SenderNotAuthorized, + ); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.deep.equal(erc20Balances); + }); + + it('should revert if token returns more than 32 bytes', async () => { + // Construct ERC20 asset data + const encodedAssetData = assetDataUtils.encodeERC20AssetData(multipleReturnErc20Token.address); + const amount = new BigNumber(10); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + encodedAssetData, + fromAddress, + toAddress, + amount, + ); + const initialFromBalance = await multipleReturnErc20Token.balanceOf.callAsync(fromAddress); + const initialToBalance = await multipleReturnErc20Token.balanceOf.callAsync(toAddress); + // Perform a transfer; expect this to fail. + await expectTransactionFailedAsync( + web3Wrapper.sendTransactionAsync({ + to: erc20Proxy.address, + data, + from: authorized, + }), + RevertReason.TransferFailed, + ); + const newFromBalance = await multipleReturnErc20Token.balanceOf.callAsync(fromAddress); + const newToBalance = await multipleReturnErc20Token.balanceOf.callAsync(toAddress); + expect(newFromBalance).to.be.bignumber.equal(initialFromBalance); + expect(newToBalance).to.be.bignumber.equal(initialToBalance); + }); + }); + }); + + describe('ERC721Proxy', () => { + it('should revert if undefined function is called', async () => { + const undefinedSelector = '0x01020304'; + await expectTransactionFailedWithoutReasonAsync( + web3Wrapper.sendTransactionAsync({ + from: owner, + to: erc721Proxy.address, + value: constants.ZERO_AMOUNT, + data: undefinedSelector, + }), + ); + }); + it('should have an id of 0x02571792', async () => { + const proxyId = await erc721Proxy.getProxyId.callAsync(); + const expectedProxyId = '0x02571792'; + expect(proxyId).to.equal(expectedProxyId); + }); + describe('transferFrom', () => { + it('should successfully transfer tokens', async () => { + // Construct ERC721 asset data + const encodedAssetData = assetDataUtils.encodeERC721AssetData(erc721TokenA.address, erc721AFromTokenId); + // Verify pre-condition + const ownerFromAsset = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(ownerFromAsset).to.be.equal(fromAddress); + // Perform a transfer from fromAddress to toAddress + const amount = new BigNumber(1); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + encodedAssetData, + fromAddress, + toAddress, + amount, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await web3Wrapper.sendTransactionAsync({ + to: erc721Proxy.address, + data, + from: authorized, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + // Verify transfer was successful + const newOwnerFromAsset = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(newOwnerFromAsset).to.be.bignumber.equal(toAddress); + }); + + it('should successfully transfer tokens and ignore extra assetData', async () => { + // Construct ERC721 asset data + const extraData = '0102030405060708'; + const encodedAssetData = `${assetDataUtils.encodeERC721AssetData( + erc721TokenA.address, + erc721AFromTokenId, + )}${extraData}`; + // Verify pre-condition + const ownerFromAsset = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(ownerFromAsset).to.be.equal(fromAddress); + // Perform a transfer from fromAddress to toAddress + const amount = new BigNumber(1); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + encodedAssetData, + fromAddress, + toAddress, + amount, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await web3Wrapper.sendTransactionAsync({ + to: erc721Proxy.address, + data, + from: authorized, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + // Verify transfer was successful + const newOwnerFromAsset = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(newOwnerFromAsset).to.be.bignumber.equal(toAddress); + }); + + it('should not call onERC721Received when transferring to a smart contract', async () => { + // Construct ERC721 asset data + const encodedAssetData = assetDataUtils.encodeERC721AssetData(erc721TokenA.address, erc721AFromTokenId); + // Verify pre-condition + const ownerFromAsset = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(ownerFromAsset).to.be.equal(fromAddress); + // Perform a transfer from fromAddress to toAddress + const amount = new BigNumber(1); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + encodedAssetData, + fromAddress, + erc721Receiver.address, + amount, + ); + const logDecoder = new LogDecoder(web3Wrapper, artifacts); + const tx = await logDecoder.getTxWithDecodedLogsAsync( + await web3Wrapper.sendTransactionAsync({ + to: erc721Proxy.address, + data, + from: authorized, + gas: constants.MAX_TRANSFER_FROM_GAS, + }), + ); + // Verify that no log was emitted by erc721 receiver + expect(tx.logs.length).to.be.equal(1); + // Verify transfer was successful + const newOwnerFromAsset = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(newOwnerFromAsset).to.be.bignumber.equal(erc721Receiver.address); + }); + + it('should revert if transferring 0 amount of a token', async () => { + // Construct ERC721 asset data + const encodedAssetData = assetDataUtils.encodeERC721AssetData(erc721TokenA.address, erc721AFromTokenId); + // Verify pre-condition + const ownerFromAsset = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(ownerFromAsset).to.be.equal(fromAddress); + // Perform a transfer from fromAddress to toAddress + const amount = new BigNumber(0); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + encodedAssetData, + fromAddress, + toAddress, + amount, + ); + await expectTransactionFailedAsync( + web3Wrapper.sendTransactionAsync({ + to: erc721Proxy.address, + data, + from: authorized, + }), + RevertReason.InvalidAmount, + ); + const newOwner = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(newOwner).to.be.equal(ownerFromAsset); + }); + + it('should revert if transferring > 1 amount of a token', async () => { + // Construct ERC721 asset data + const encodedAssetData = assetDataUtils.encodeERC721AssetData(erc721TokenA.address, erc721AFromTokenId); + // Verify pre-condition + const ownerFromAsset = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(ownerFromAsset).to.be.equal(fromAddress); + // Perform a transfer from fromAddress to toAddress + const amount = new BigNumber(500); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + encodedAssetData, + fromAddress, + toAddress, + amount, + ); + await expectTransactionFailedAsync( + web3Wrapper.sendTransactionAsync({ + to: erc721Proxy.address, + data, + from: authorized, + }), + RevertReason.InvalidAmount, + ); + const newOwner = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(newOwner).to.be.equal(ownerFromAsset); + }); + + it('should revert if allowances are too low', async () => { + // Construct ERC721 asset data + const encodedAssetData = assetDataUtils.encodeERC721AssetData(erc721TokenA.address, erc721AFromTokenId); + // Verify pre-condition + const ownerFromAsset = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(ownerFromAsset).to.be.equal(fromAddress); + // Remove transfer approval for fromAddress. + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721TokenA.approve.sendTransactionAsync(constants.NULL_ADDRESS, erc721AFromTokenId, { + from: fromAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + // Perform a transfer; expect this to fail. + const amount = new BigNumber(1); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + encodedAssetData, + fromAddress, + toAddress, + amount, + ); + await expectTransactionFailedAsync( + web3Wrapper.sendTransactionAsync({ + to: erc721Proxy.address, + data, + from: authorized, + }), + RevertReason.TransferFailed, + ); + const newOwner = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(newOwner).to.be.equal(ownerFromAsset); + }); + + it('should revert if caller is not authorized', async () => { + // Construct ERC721 asset data + const encodedAssetData = assetDataUtils.encodeERC721AssetData(erc721TokenA.address, erc721AFromTokenId); + // Verify pre-condition + const ownerFromAsset = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(ownerFromAsset).to.be.equal(fromAddress); + // Perform a transfer from fromAddress to toAddress + const amount = new BigNumber(1); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + encodedAssetData, + fromAddress, + toAddress, + amount, + ); + await expectTransactionFailedAsync( + web3Wrapper.sendTransactionAsync({ + to: erc721Proxy.address, + data, + from: notAuthorized, + }), + RevertReason.SenderNotAuthorized, + ); + const newOwner = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(newOwner).to.be.equal(ownerFromAsset); + }); + }); + }); + describe('MultiAssetProxy', () => { + it('should revert if undefined function is called', async () => { + const undefinedSelector = '0x01020304'; + await expectTransactionFailedWithoutReasonAsync( + web3Wrapper.sendTransactionAsync({ + from: owner, + to: multiAssetProxy.address, + value: constants.ZERO_AMOUNT, + data: undefinedSelector, + }), + ); + }); + it('should have an id of 0x94cfcdd7', async () => { + const proxyId = await multiAssetProxy.getProxyId.callAsync(); + // first 4 bytes of `keccak256('MultiAsset(uint256[],bytes[])')` + const expectedProxyId = '0x94cfcdd7'; + expect(proxyId).to.equal(expectedProxyId); + }); + describe('transferFrom', () => { + it('should transfer a single ERC20 token', async () => { + const inputAmount = new BigNumber(1); + const erc20Amount = new BigNumber(10); + const erc20AssetData = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + const amounts = [erc20Amount]; + const nestedAssetData = [erc20AssetData]; + const assetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData(amounts, nestedAssetData); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + assetData, + fromAddress, + toAddress, + inputAmount, + ); + const erc20Balances = await erc20Wrapper.getBalancesAsync(); + await web3Wrapper.awaitTransactionSuccessAsync( + await web3Wrapper.sendTransactionAsync({ + to: multiAssetProxy.address, + data, + from: authorized, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const newBalances = await erc20Wrapper.getBalancesAsync(); + const totalAmount = inputAmount.times(erc20Amount); + expect(newBalances[fromAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[fromAddress][erc20TokenA.address].minus(totalAmount), + ); + expect(newBalances[toAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[toAddress][erc20TokenA.address].add(totalAmount), + ); + }); + it('should successfully transfer multiple of the same ERC20 token', async () => { + const inputAmount = new BigNumber(1); + const erc20Amount1 = new BigNumber(10); + const erc20Amount2 = new BigNumber(20); + const erc20AssetData1 = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + const erc20AssetData2 = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + const amounts = [erc20Amount1, erc20Amount2]; + const nestedAssetData = [erc20AssetData1, erc20AssetData2]; + const assetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData(amounts, nestedAssetData); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + assetData, + fromAddress, + toAddress, + inputAmount, + ); + const erc20Balances = await erc20Wrapper.getBalancesAsync(); + await web3Wrapper.awaitTransactionSuccessAsync( + await web3Wrapper.sendTransactionAsync({ + to: multiAssetProxy.address, + data, + from: authorized, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const newBalances = await erc20Wrapper.getBalancesAsync(); + const totalAmount = inputAmount.times(erc20Amount1).plus(inputAmount.times(erc20Amount2)); + expect(newBalances[fromAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[fromAddress][erc20TokenA.address].minus(totalAmount), + ); + expect(newBalances[toAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[toAddress][erc20TokenA.address].add(totalAmount), + ); + }); + it('should successfully transfer multiple different ERC20 tokens', async () => { + const inputAmount = new BigNumber(1); + const erc20Amount1 = new BigNumber(10); + const erc20Amount2 = new BigNumber(20); + const erc20AssetData1 = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + const erc20AssetData2 = assetDataUtils.encodeERC20AssetData(erc20TokenB.address); + const amounts = [erc20Amount1, erc20Amount2]; + const nestedAssetData = [erc20AssetData1, erc20AssetData2]; + const assetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData(amounts, nestedAssetData); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + assetData, + fromAddress, + toAddress, + inputAmount, + ); + const erc20Balances = await erc20Wrapper.getBalancesAsync(); + await web3Wrapper.awaitTransactionSuccessAsync( + await web3Wrapper.sendTransactionAsync({ + to: multiAssetProxy.address, + data, + from: authorized, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const newBalances = await erc20Wrapper.getBalancesAsync(); + const totalErc20AAmount = inputAmount.times(erc20Amount1); + const totalErc20BAmount = inputAmount.times(erc20Amount2); + expect(newBalances[fromAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[fromAddress][erc20TokenA.address].minus(totalErc20AAmount), + ); + expect(newBalances[toAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[toAddress][erc20TokenA.address].add(totalErc20AAmount), + ); + expect(newBalances[fromAddress][erc20TokenB.address]).to.be.bignumber.equal( + erc20Balances[fromAddress][erc20TokenB.address].minus(totalErc20BAmount), + ); + expect(newBalances[toAddress][erc20TokenB.address]).to.be.bignumber.equal( + erc20Balances[toAddress][erc20TokenB.address].add(totalErc20BAmount), + ); + }); + it('should transfer a single ERC721 token', async () => { + const inputAmount = new BigNumber(1); + const erc721Amount = new BigNumber(1); + const erc721AssetData = assetDataUtils.encodeERC721AssetData(erc721TokenA.address, erc721AFromTokenId); + const amounts = [erc721Amount]; + const nestedAssetData = [erc721AssetData]; + const assetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData(amounts, nestedAssetData); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + assetData, + fromAddress, + toAddress, + inputAmount, + ); + const ownerFromAsset = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(ownerFromAsset).to.be.equal(fromAddress); + await web3Wrapper.awaitTransactionSuccessAsync( + await web3Wrapper.sendTransactionAsync({ + to: multiAssetProxy.address, + data, + from: authorized, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const newOwnerFromAsset = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(newOwnerFromAsset).to.be.equal(toAddress); + }); + it('should successfully transfer multiple of the same ERC721 token', async () => { + const erc721Balances = await erc721Wrapper.getBalancesAsync(); + const erc721AFromTokenId2 = erc721Balances[fromAddress][erc721TokenA.address][1]; + const erc721AssetData1 = assetDataUtils.encodeERC721AssetData(erc721TokenA.address, erc721AFromTokenId); + const erc721AssetData2 = assetDataUtils.encodeERC721AssetData( + erc721TokenA.address, + erc721AFromTokenId2, + ); + const inputAmount = new BigNumber(1); + const erc721Amount = new BigNumber(1); + const amounts = [erc721Amount, erc721Amount]; + const nestedAssetData = [erc721AssetData1, erc721AssetData2]; + const assetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData(amounts, nestedAssetData); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + assetData, + fromAddress, + toAddress, + inputAmount, + ); + const ownerFromAsset1 = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(ownerFromAsset1).to.be.equal(fromAddress); + const ownerFromAsset2 = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId2); + expect(ownerFromAsset2).to.be.equal(fromAddress); + await web3Wrapper.awaitTransactionSuccessAsync( + await web3Wrapper.sendTransactionAsync({ + to: multiAssetProxy.address, + data, + from: authorized, + gas: constants.MAX_TRANSFER_FROM_GAS, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const newOwnerFromAsset1 = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + const newOwnerFromAsset2 = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId2); + expect(newOwnerFromAsset1).to.be.equal(toAddress); + expect(newOwnerFromAsset2).to.be.equal(toAddress); + }); + it('should successfully transfer multiple different ERC721 tokens', async () => { + const erc721AssetData1 = assetDataUtils.encodeERC721AssetData(erc721TokenA.address, erc721AFromTokenId); + const erc721AssetData2 = assetDataUtils.encodeERC721AssetData(erc721TokenB.address, erc721BFromTokenId); + const inputAmount = new BigNumber(1); + const erc721Amount = new BigNumber(1); + const amounts = [erc721Amount, erc721Amount]; + const nestedAssetData = [erc721AssetData1, erc721AssetData2]; + const assetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData(amounts, nestedAssetData); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + assetData, + fromAddress, + toAddress, + inputAmount, + ); + const ownerFromAsset1 = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(ownerFromAsset1).to.be.equal(fromAddress); + const ownerFromAsset2 = await erc721TokenB.ownerOf.callAsync(erc721BFromTokenId); + expect(ownerFromAsset2).to.be.equal(fromAddress); + await web3Wrapper.awaitTransactionSuccessAsync( + await web3Wrapper.sendTransactionAsync({ + to: multiAssetProxy.address, + data, + from: authorized, + gas: constants.MAX_TRANSFER_FROM_GAS, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const newOwnerFromAsset1 = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + const newOwnerFromAsset2 = await erc721TokenB.ownerOf.callAsync(erc721BFromTokenId); + expect(newOwnerFromAsset1).to.be.equal(toAddress); + expect(newOwnerFromAsset2).to.be.equal(toAddress); + }); + it('should successfully transfer a combination of ERC20 and ERC721 tokens', async () => { + const inputAmount = new BigNumber(1); + const erc20Amount = new BigNumber(10); + const erc20AssetData = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + const erc721Amount = new BigNumber(1); + const erc721AssetData = assetDataUtils.encodeERC721AssetData(erc721TokenA.address, erc721AFromTokenId); + const amounts = [erc20Amount, erc721Amount]; + const nestedAssetData = [erc20AssetData, erc721AssetData]; + const assetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData(amounts, nestedAssetData); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + assetData, + fromAddress, + toAddress, + inputAmount, + ); + const erc20Balances = await erc20Wrapper.getBalancesAsync(); + const ownerFromAsset = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(ownerFromAsset).to.be.equal(fromAddress); + await web3Wrapper.awaitTransactionSuccessAsync( + await web3Wrapper.sendTransactionAsync({ + to: multiAssetProxy.address, + data, + from: authorized, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const newBalances = await erc20Wrapper.getBalancesAsync(); + const totalAmount = inputAmount.times(erc20Amount); + expect(newBalances[fromAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[fromAddress][erc20TokenA.address].minus(totalAmount), + ); + expect(newBalances[toAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[toAddress][erc20TokenA.address].add(totalAmount), + ); + const newOwnerFromAsset = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(newOwnerFromAsset).to.be.equal(toAddress); + }); + it('should successfully transfer tokens and ignore extra assetData', async () => { + const inputAmount = new BigNumber(1); + const erc20Amount = new BigNumber(10); + const erc20AssetData = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + const erc721Amount = new BigNumber(1); + const erc721AssetData = assetDataUtils.encodeERC721AssetData(erc721TokenA.address, erc721AFromTokenId); + const amounts = [erc20Amount, erc721Amount]; + const nestedAssetData = [erc20AssetData, erc721AssetData]; + const extraData = '0102030405060708'; + const assetData = `${assetDataInterface.MultiAsset.getABIEncodedTransactionData( + amounts, + nestedAssetData, + )}${extraData}`; + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + assetData, + fromAddress, + toAddress, + inputAmount, + ); + const erc20Balances = await erc20Wrapper.getBalancesAsync(); + const ownerFromAsset = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(ownerFromAsset).to.be.equal(fromAddress); + await web3Wrapper.awaitTransactionSuccessAsync( + await web3Wrapper.sendTransactionAsync({ + to: multiAssetProxy.address, + data, + from: authorized, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const newBalances = await erc20Wrapper.getBalancesAsync(); + const totalAmount = inputAmount.times(erc20Amount); + expect(newBalances[fromAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[fromAddress][erc20TokenA.address].minus(totalAmount), + ); + expect(newBalances[toAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[toAddress][erc20TokenA.address].add(totalAmount), + ); + const newOwnerFromAsset = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(newOwnerFromAsset).to.be.equal(toAddress); + }); + it('should successfully transfer correct amounts when the `amount` > 1', async () => { + const inputAmount = new BigNumber(100); + const erc20Amount1 = new BigNumber(10); + const erc20Amount2 = new BigNumber(20); + const erc20AssetData1 = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + const erc20AssetData2 = assetDataUtils.encodeERC20AssetData(erc20TokenB.address); + const amounts = [erc20Amount1, erc20Amount2]; + const nestedAssetData = [erc20AssetData1, erc20AssetData2]; + const assetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData(amounts, nestedAssetData); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + assetData, + fromAddress, + toAddress, + inputAmount, + ); + const erc20Balances = await erc20Wrapper.getBalancesAsync(); + await web3Wrapper.awaitTransactionSuccessAsync( + await web3Wrapper.sendTransactionAsync({ + to: multiAssetProxy.address, + data, + from: authorized, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const newBalances = await erc20Wrapper.getBalancesAsync(); + const totalErc20AAmount = inputAmount.times(erc20Amount1); + const totalErc20BAmount = inputAmount.times(erc20Amount2); + expect(newBalances[fromAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[fromAddress][erc20TokenA.address].minus(totalErc20AAmount), + ); + expect(newBalances[toAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[toAddress][erc20TokenA.address].add(totalErc20AAmount), + ); + expect(newBalances[fromAddress][erc20TokenB.address]).to.be.bignumber.equal( + erc20Balances[fromAddress][erc20TokenB.address].minus(totalErc20BAmount), + ); + expect(newBalances[toAddress][erc20TokenB.address]).to.be.bignumber.equal( + erc20Balances[toAddress][erc20TokenB.address].add(totalErc20BAmount), + ); + }); + it('should successfully transfer a large amount of tokens', async () => { + const inputAmount = new BigNumber(1); + const erc20Amount1 = new BigNumber(10); + const erc20Amount2 = new BigNumber(20); + const erc20AssetData1 = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + const erc20AssetData2 = assetDataUtils.encodeERC20AssetData(erc20TokenB.address); + const erc721Amount = new BigNumber(1); + const erc721Balances = await erc721Wrapper.getBalancesAsync(); + const erc721AFromTokenId2 = erc721Balances[fromAddress][erc721TokenA.address][1]; + const erc721BFromTokenId2 = erc721Balances[fromAddress][erc721TokenB.address][1]; + const erc721AssetData1 = assetDataUtils.encodeERC721AssetData(erc721TokenA.address, erc721AFromTokenId); + const erc721AssetData2 = assetDataUtils.encodeERC721AssetData( + erc721TokenA.address, + erc721AFromTokenId2, + ); + const erc721AssetData3 = assetDataUtils.encodeERC721AssetData(erc721TokenB.address, erc721BFromTokenId); + const erc721AssetData4 = assetDataUtils.encodeERC721AssetData( + erc721TokenB.address, + erc721BFromTokenId2, + ); + const amounts = [erc721Amount, erc20Amount1, erc721Amount, erc20Amount2, erc721Amount, erc721Amount]; + const nestedAssetData = [ + erc721AssetData1, + erc20AssetData1, + erc721AssetData2, + erc20AssetData2, + erc721AssetData3, + erc721AssetData4, + ]; + const assetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData(amounts, nestedAssetData); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + assetData, + fromAddress, + toAddress, + inputAmount, + ); + const ownerFromAsset1 = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + expect(ownerFromAsset1).to.be.equal(fromAddress); + const ownerFromAsset2 = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId2); + expect(ownerFromAsset2).to.be.equal(fromAddress); + const ownerFromAsset3 = await erc721TokenB.ownerOf.callAsync(erc721BFromTokenId); + expect(ownerFromAsset3).to.be.equal(fromAddress); + const ownerFromAsset4 = await erc721TokenB.ownerOf.callAsync(erc721BFromTokenId2); + expect(ownerFromAsset4).to.be.equal(fromAddress); + const erc20Balances = await erc20Wrapper.getBalancesAsync(); + await web3Wrapper.awaitTransactionSuccessAsync( + await web3Wrapper.sendTransactionAsync({ + to: multiAssetProxy.address, + data, + from: authorized, + gas: constants.MAX_EXECUTE_TRANSACTION_GAS, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const newOwnerFromAsset1 = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId); + const newOwnerFromAsset2 = await erc721TokenA.ownerOf.callAsync(erc721AFromTokenId2); + const newOwnerFromAsset3 = await erc721TokenB.ownerOf.callAsync(erc721BFromTokenId); + const newOwnerFromAsset4 = await erc721TokenB.ownerOf.callAsync(erc721BFromTokenId2); + expect(newOwnerFromAsset1).to.be.equal(toAddress); + expect(newOwnerFromAsset2).to.be.equal(toAddress); + expect(newOwnerFromAsset3).to.be.equal(toAddress); + expect(newOwnerFromAsset4).to.be.equal(toAddress); + const newBalances = await erc20Wrapper.getBalancesAsync(); + const totalErc20AAmount = inputAmount.times(erc20Amount1); + const totalErc20BAmount = inputAmount.times(erc20Amount2); + expect(newBalances[fromAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[fromAddress][erc20TokenA.address].minus(totalErc20AAmount), + ); + expect(newBalances[toAddress][erc20TokenA.address]).to.be.bignumber.equal( + erc20Balances[toAddress][erc20TokenA.address].add(totalErc20AAmount), + ); + expect(newBalances[fromAddress][erc20TokenB.address]).to.be.bignumber.equal( + erc20Balances[fromAddress][erc20TokenB.address].minus(totalErc20BAmount), + ); + expect(newBalances[toAddress][erc20TokenB.address]).to.be.bignumber.equal( + erc20Balances[toAddress][erc20TokenB.address].add(totalErc20BAmount), + ); + }); + it('should revert if a single transfer fails', async () => { + const inputAmount = new BigNumber(1); + const erc20Amount = new BigNumber(10); + const erc20AssetData = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + // 2 is an invalid erc721 amount + const erc721Amount = new BigNumber(2); + const erc721AssetData = assetDataUtils.encodeERC721AssetData(erc721TokenA.address, erc721AFromTokenId); + const amounts = [erc20Amount, erc721Amount]; + const nestedAssetData = [erc20AssetData, erc721AssetData]; + const assetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData(amounts, nestedAssetData); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + assetData, + fromAddress, + toAddress, + inputAmount, + ); + await expectTransactionFailedAsync( + web3Wrapper.sendTransactionAsync({ + to: multiAssetProxy.address, + data, + from: authorized, + }), + RevertReason.InvalidAmount, + ); + }); + it('should revert if an AssetProxy is not registered', async () => { + const inputAmount = new BigNumber(1); + const erc20Amount = new BigNumber(10); + const erc20AssetData = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + const erc721Amount = new BigNumber(1); + const erc721AssetData = assetDataUtils.encodeERC721AssetData(erc721TokenA.address, erc721AFromTokenId); + const invalidProxyId = '0x12345678'; + const invalidErc721AssetData = `${invalidProxyId}${erc721AssetData.slice(10)}`; + const amounts = [erc20Amount, erc721Amount]; + const nestedAssetData = [erc20AssetData, invalidErc721AssetData]; + const assetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData(amounts, nestedAssetData); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + assetData, + fromAddress, + toAddress, + inputAmount, + ); + await expectTransactionFailedAsync( + web3Wrapper.sendTransactionAsync({ + to: multiAssetProxy.address, + data, + from: authorized, + }), + RevertReason.AssetProxyDoesNotExist, + ); + }); + it('should revert if the length of `amounts` does not match the length of `nestedAssetData`', async () => { + const inputAmount = new BigNumber(1); + const erc20Amount = new BigNumber(10); + const erc20AssetData = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + const erc721AssetData = assetDataUtils.encodeERC721AssetData(erc721TokenA.address, erc721AFromTokenId); + const amounts = [erc20Amount]; + const nestedAssetData = [erc20AssetData, erc721AssetData]; + const assetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData(amounts, nestedAssetData); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + assetData, + fromAddress, + toAddress, + inputAmount, + ); + await expectTransactionFailedAsync( + web3Wrapper.sendTransactionAsync({ + to: multiAssetProxy.address, + data, + from: authorized, + }), + RevertReason.LengthMismatch, + ); + }); + it('should revert if amounts multiplication results in an overflow', async () => { + const inputAmount = new BigNumber(2).pow(128); + const erc20Amount = new BigNumber(2).pow(128); + const erc20AssetData = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + const amounts = [erc20Amount]; + const nestedAssetData = [erc20AssetData]; + const assetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData(amounts, nestedAssetData); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + assetData, + fromAddress, + toAddress, + inputAmount, + ); + await expectTransactionFailedAsync( + web3Wrapper.sendTransactionAsync({ + to: multiAssetProxy.address, + data, + from: authorized, + }), + RevertReason.Uint256Overflow, + ); + }); + it('should revert if an element of `nestedAssetData` is < 4 bytes long', async () => { + const inputAmount = new BigNumber(1); + const erc20Amount = new BigNumber(10); + const erc20AssetData = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + const erc721Amount = new BigNumber(1); + const erc721AssetData = '0x123456'; + const amounts = [erc20Amount, erc721Amount]; + const nestedAssetData = [erc20AssetData, erc721AssetData]; + const assetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData(amounts, nestedAssetData); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + assetData, + fromAddress, + toAddress, + inputAmount, + ); + await expectTransactionFailedAsync( + web3Wrapper.sendTransactionAsync({ + to: multiAssetProxy.address, + data, + from: authorized, + }), + RevertReason.LengthGreaterThan3Required, + ); + }); + it('should revert if caller is not authorized', async () => { + const inputAmount = new BigNumber(1); + const erc20Amount = new BigNumber(10); + const erc20AssetData = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); + const erc721Amount = new BigNumber(1); + const erc721AssetData = assetDataUtils.encodeERC721AssetData(erc721TokenA.address, erc721AFromTokenId); + const amounts = [erc20Amount, erc721Amount]; + const nestedAssetData = [erc20AssetData, erc721AssetData]; + const assetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData(amounts, nestedAssetData); + const data = assetProxyInterface.transferFrom.getABIEncodedTransactionData( + assetData, + fromAddress, + toAddress, + inputAmount, + ); + await expectTransactionFailedAsync( + web3Wrapper.sendTransactionAsync({ + to: multiAssetProxy.address, + data, + from: notAuthorized, + }), + RevertReason.SenderNotAuthorized, + ); + }); + }); + }); +}); +// tslint:enable:no-unnecessary-type-assertion +// tslint:disable:max-file-line-count diff --git a/contracts/core/test/exchange/core.ts b/contracts/core/test/exchange/core.ts new file mode 100644 index 000000000..fd6b9ee6b --- /dev/null +++ b/contracts/core/test/exchange/core.ts @@ -0,0 +1,1174 @@ +import { + chaiSetup, + constants, + ERC20BalancesByOwner, + expectTransactionFailedAsync, + getLatestBlockTimestampAsync, + increaseTimeAndMineBlockAsync, + OrderFactory, + OrderStatus, + provider, + txDefaults, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { assetDataUtils, orderHashUtils } from '@0x/order-utils'; +import { RevertReason, SignatureType, SignedOrder } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; +import * as chai from 'chai'; +import { LogWithDecodedArgs } from 'ethereum-types'; +import ethUtil = require('ethereumjs-util'); +import * as _ from 'lodash'; + +import { DummyERC20TokenContract, DummyERC20TokenTransferEventArgs } from '../../generated-wrappers/dummy_erc20_token'; +import { DummyERC721TokenContract } from '../../generated-wrappers/dummy_erc721_token'; +import { DummyNoReturnERC20TokenContract } from '../../generated-wrappers/dummy_no_return_erc20_token'; +import { ERC20ProxyContract } from '../../generated-wrappers/erc20_proxy'; +import { ERC721ProxyContract } from '../../generated-wrappers/erc721_proxy'; +import { ExchangeCancelEventArgs, ExchangeContract } from '../../generated-wrappers/exchange'; +import { IAssetDataContract } from '../../generated-wrappers/i_asset_data'; +import { MultiAssetProxyContract } from '../../generated-wrappers/multi_asset_proxy'; +import { ReentrantERC20TokenContract } from '../../generated-wrappers/reentrant_erc20_token'; +import { TestStaticCallReceiverContract } from '../../generated-wrappers/test_static_call_receiver'; +import { artifacts } from '../../src/artifacts'; +import { ERC20Wrapper } from '../utils/erc20_wrapper'; +import { ERC721Wrapper } from '../utils/erc721_wrapper'; +import { ExchangeWrapper } from '../utils/exchange_wrapper'; + +chaiSetup.configure(); +const expect = chai.expect; +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); +const assetDataInterface = new IAssetDataContract( + artifacts.IAssetData.compilerOutput.abi, + constants.NULL_ADDRESS, + provider, +); +// tslint:disable:no-unnecessary-type-assertion +describe('Exchange core', () => { + let makerAddress: string; + let owner: string; + let takerAddress: string; + let feeRecipientAddress: string; + + let erc20TokenA: DummyERC20TokenContract; + let erc20TokenB: DummyERC20TokenContract; + let zrxToken: DummyERC20TokenContract; + let erc721Token: DummyERC721TokenContract; + let noReturnErc20Token: DummyNoReturnERC20TokenContract; + let reentrantErc20Token: ReentrantERC20TokenContract; + let exchange: ExchangeContract; + let erc20Proxy: ERC20ProxyContract; + let erc721Proxy: ERC721ProxyContract; + let multiAssetProxy: MultiAssetProxyContract; + let maliciousWallet: TestStaticCallReceiverContract; + let maliciousValidator: TestStaticCallReceiverContract; + + let signedOrder: SignedOrder; + let erc20Balances: ERC20BalancesByOwner; + let exchangeWrapper: ExchangeWrapper; + let erc20Wrapper: ERC20Wrapper; + let erc721Wrapper: ERC721Wrapper; + let orderFactory: OrderFactory; + + let erc721MakerAssetIds: BigNumber[]; + let erc721TakerAssetIds: BigNumber[]; + + let defaultMakerAssetAddress: string; + let defaultTakerAssetAddress: string; + + before(async () => { + await blockchainLifecycle.startAsync(); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + before(async () => { + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + const usedAddresses = ([owner, makerAddress, takerAddress, feeRecipientAddress] = _.slice(accounts, 0, 4)); + + erc20Wrapper = new ERC20Wrapper(provider, usedAddresses, owner); + erc721Wrapper = new ERC721Wrapper(provider, usedAddresses, owner); + + // Deploy AssetProxies, Exchange, tokens, and malicious contracts + erc20Proxy = await erc20Wrapper.deployProxyAsync(); + erc721Proxy = await erc721Wrapper.deployProxyAsync(); + multiAssetProxy = await MultiAssetProxyContract.deployFrom0xArtifactAsync( + artifacts.MultiAssetProxy, + provider, + txDefaults, + ); + const numDummyErc20ToDeploy = 3; + [erc20TokenA, erc20TokenB, zrxToken] = await erc20Wrapper.deployDummyTokensAsync( + numDummyErc20ToDeploy, + constants.DUMMY_TOKEN_DECIMALS, + ); + [erc721Token] = await erc721Wrapper.deployDummyTokensAsync(); + exchange = await ExchangeContract.deployFrom0xArtifactAsync( + artifacts.Exchange, + provider, + txDefaults, + assetDataUtils.encodeERC20AssetData(zrxToken.address), + ); + maliciousWallet = maliciousValidator = await TestStaticCallReceiverContract.deployFrom0xArtifactAsync( + artifacts.TestStaticCallReceiver, + provider, + txDefaults, + ); + reentrantErc20Token = await ReentrantERC20TokenContract.deployFrom0xArtifactAsync( + artifacts.ReentrantERC20Token, + provider, + txDefaults, + exchange.address, + ); + + // Configure ERC20Proxy + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Proxy.addAuthorizedAddress.sendTransactionAsync(exchange.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Proxy.addAuthorizedAddress.sendTransactionAsync(multiAssetProxy.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + // Configure ERC721Proxy + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Proxy.addAuthorizedAddress.sendTransactionAsync(exchange.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Proxy.addAuthorizedAddress.sendTransactionAsync(multiAssetProxy.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + // Configure MultiAssetProxy + await web3Wrapper.awaitTransactionSuccessAsync( + await multiAssetProxy.addAuthorizedAddress.sendTransactionAsync(exchange.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await multiAssetProxy.registerAssetProxy.sendTransactionAsync(erc20Proxy.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await multiAssetProxy.registerAssetProxy.sendTransactionAsync(erc721Proxy.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + // Configure Exchange + exchangeWrapper = new ExchangeWrapper(exchange, provider); + await exchangeWrapper.registerAssetProxyAsync(erc20Proxy.address, owner); + await exchangeWrapper.registerAssetProxyAsync(erc721Proxy.address, owner); + await exchangeWrapper.registerAssetProxyAsync(multiAssetProxy.address, owner); + + // Configure ERC20 tokens + await erc20Wrapper.setBalancesAndAllowancesAsync(); + + // Configure ERC721 tokens + await erc721Wrapper.setBalancesAndAllowancesAsync(); + const erc721Balances = await erc721Wrapper.getBalancesAsync(); + erc721MakerAssetIds = erc721Balances[makerAddress][erc721Token.address]; + erc721TakerAssetIds = erc721Balances[takerAddress][erc721Token.address]; + + // Configure order defaults + defaultMakerAssetAddress = erc20TokenA.address; + defaultTakerAssetAddress = erc20TokenB.address; + const defaultOrderParams = { + ...constants.STATIC_ORDER_PARAMS, + exchangeAddress: exchange.address, + makerAddress, + feeRecipientAddress, + makerAssetData: assetDataUtils.encodeERC20AssetData(defaultMakerAssetAddress), + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultTakerAssetAddress), + }; + const privateKey = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(makerAddress)]; + orderFactory = new OrderFactory(privateKey, defaultOrderParams); + }); + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + describe('fillOrder', () => { + beforeEach(async () => { + erc20Balances = await erc20Wrapper.getBalancesAsync(); + signedOrder = await orderFactory.newSignedOrderAsync(); + }); + + const reentrancyTest = (functionNames: string[]) => { + _.forEach(functionNames, async (functionName: string, functionId: number) => { + const description = `should not allow fillOrder to reenter the Exchange contract via ${functionName}`; + it(description, async () => { + signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(reentrantErc20Token.address), + }); + await web3Wrapper.awaitTransactionSuccessAsync( + await reentrantErc20Token.setCurrentFunction.sendTransactionAsync(functionId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await expectTransactionFailedAsync( + exchangeWrapper.fillOrderAsync(signedOrder, takerAddress), + RevertReason.TransferFailed, + ); + }); + }); + }; + describe('fillOrder reentrancy tests', () => reentrancyTest(constants.FUNCTIONS_WITH_MUTEX)); + + it('should throw if signature is invalid', async () => { + signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + }); + + const v = ethUtil.toBuffer(signedOrder.signature.slice(0, 4)); + const invalidR = ethUtil.sha3('invalidR'); + const invalidS = ethUtil.sha3('invalidS'); + const signatureType = ethUtil.toBuffer(`0x${signedOrder.signature.slice(-2)}`); + const invalidSigBuff = Buffer.concat([v, invalidR, invalidS, signatureType]); + const invalidSigHex = `0x${invalidSigBuff.toString('hex')}`; + signedOrder.signature = invalidSigHex; + return expectTransactionFailedAsync( + exchangeWrapper.fillOrderAsync(signedOrder, takerAddress), + RevertReason.InvalidOrderSignature, + ); + }); + + it('should throw if no value is filled', async () => { + signedOrder = await orderFactory.newSignedOrderAsync(); + await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); + return expectTransactionFailedAsync( + exchangeWrapper.fillOrderAsync(signedOrder, takerAddress), + RevertReason.OrderUnfillable, + ); + }); + + it('should revert if `isValidSignature` tries to update state when SignatureType=Wallet', async () => { + const maliciousMakerAddress = maliciousWallet.address; + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20TokenA.setBalance.sendTransactionAsync( + maliciousMakerAddress, + constants.INITIAL_ERC20_BALANCE, + ), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await maliciousWallet.approveERC20.sendTransactionAsync( + erc20TokenA.address, + erc20Proxy.address, + constants.INITIAL_ERC20_ALLOWANCE, + ), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + signedOrder = await orderFactory.newSignedOrderAsync({ + makerAddress: maliciousMakerAddress, + makerFee: constants.ZERO_AMOUNT, + }); + signedOrder.signature = `0x0${SignatureType.Wallet}`; + await expectTransactionFailedAsync( + exchangeWrapper.fillOrderAsync(signedOrder, takerAddress), + RevertReason.WalletError, + ); + }); + + it('should revert if `isValidSignature` tries to update state when SignatureType=Validator', async () => { + const isApproved = true; + await web3Wrapper.awaitTransactionSuccessAsync( + await exchange.setSignatureValidatorApproval.sendTransactionAsync( + maliciousValidator.address, + isApproved, + { from: makerAddress }, + ), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + signedOrder.signature = `${maliciousValidator.address}0${SignatureType.Validator}`; + await expectTransactionFailedAsync( + exchangeWrapper.fillOrderAsync(signedOrder, takerAddress), + RevertReason.ValidatorError, + ); + }); + + it('should not emit transfer events for transfers where from == to', async () => { + const txReceipt = await exchangeWrapper.fillOrderAsync(signedOrder, makerAddress); + const logs = txReceipt.logs; + const transferLogs = _.filter( + logs, + log => (log as LogWithDecodedArgs<DummyERC20TokenTransferEventArgs>).event === 'Transfer', + ); + expect(transferLogs.length).to.be.equal(2); + expect((transferLogs[0] as LogWithDecodedArgs<DummyERC20TokenTransferEventArgs>).address).to.be.equal( + zrxToken.address, + ); + expect((transferLogs[0] as LogWithDecodedArgs<DummyERC20TokenTransferEventArgs>).args._from).to.be.equal( + makerAddress, + ); + expect((transferLogs[0] as LogWithDecodedArgs<DummyERC20TokenTransferEventArgs>).args._to).to.be.equal( + feeRecipientAddress, + ); + expect( + (transferLogs[0] as LogWithDecodedArgs<DummyERC20TokenTransferEventArgs>).args._value, + ).to.be.bignumber.equal(signedOrder.makerFee); + expect((transferLogs[1] as LogWithDecodedArgs<DummyERC20TokenTransferEventArgs>).address).to.be.equal( + zrxToken.address, + ); + expect((transferLogs[1] as LogWithDecodedArgs<DummyERC20TokenTransferEventArgs>).args._from).to.be.equal( + makerAddress, + ); + expect((transferLogs[1] as LogWithDecodedArgs<DummyERC20TokenTransferEventArgs>).args._to).to.be.equal( + feeRecipientAddress, + ); + expect( + (transferLogs[1] as LogWithDecodedArgs<DummyERC20TokenTransferEventArgs>).args._value, + ).to.be.bignumber.equal(signedOrder.takerFee); + }); + }); + + describe('Testing exchange of ERC20 tokens with no return values', () => { + before(async () => { + noReturnErc20Token = await DummyNoReturnERC20TokenContract.deployFrom0xArtifactAsync( + artifacts.DummyNoReturnERC20Token, + provider, + txDefaults, + constants.DUMMY_TOKEN_NAME, + constants.DUMMY_TOKEN_SYMBOL, + constants.DUMMY_TOKEN_DECIMALS, + constants.DUMMY_TOKEN_TOTAL_SUPPLY, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await noReturnErc20Token.setBalance.sendTransactionAsync(makerAddress, constants.INITIAL_ERC20_BALANCE), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await noReturnErc20Token.approve.sendTransactionAsync( + erc20Proxy.address, + constants.INITIAL_ERC20_ALLOWANCE, + { from: makerAddress }, + ), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + }); + it('should transfer the correct amounts when makerAssetAmount === takerAssetAmount', async () => { + signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(noReturnErc20Token.address), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), + }); + + const initialMakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(makerAddress); + const initialMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); + const initialMakerZrxBalance = await zrxToken.balanceOf.callAsync(makerAddress); + const initialTakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(takerAddress); + const initialTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); + const initialTakerZrxBalance = await zrxToken.balanceOf.callAsync(takerAddress); + const initialFeeRecipientZrxBalance = await zrxToken.balanceOf.callAsync(feeRecipientAddress); + + await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); + + const finalMakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(makerAddress); + const finalMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); + const finalMakerZrxBalance = await zrxToken.balanceOf.callAsync(makerAddress); + const finalTakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(takerAddress); + const finalTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); + const finalTakerZrxBalance = await zrxToken.balanceOf.callAsync(takerAddress); + const finalFeeRecipientZrxBalance = await zrxToken.balanceOf.callAsync(feeRecipientAddress); + + expect(finalMakerBalanceA).to.be.bignumber.equal(initialMakerBalanceA.minus(signedOrder.makerAssetAmount)); + expect(finalMakerBalanceB).to.be.bignumber.equal(initialMakerBalanceB.plus(signedOrder.takerAssetAmount)); + expect(finalTakerBalanceA).to.be.bignumber.equal(initialTakerBalanceA.plus(signedOrder.makerAssetAmount)); + expect(finalTakerBalanceB).to.be.bignumber.equal(initialTakerBalanceB.minus(signedOrder.takerAssetAmount)); + expect(finalMakerZrxBalance).to.be.bignumber.equal(initialMakerZrxBalance.minus(signedOrder.makerFee)); + expect(finalTakerZrxBalance).to.be.bignumber.equal(initialTakerZrxBalance.minus(signedOrder.takerFee)); + expect(finalFeeRecipientZrxBalance).to.be.bignumber.equal( + initialFeeRecipientZrxBalance.plus(signedOrder.makerFee.plus(signedOrder.takerFee)), + ); + }); + it('should transfer the correct amounts when makerAssetAmount > takerAssetAmount', async () => { + signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(noReturnErc20Token.address), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(200), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), + }); + + const initialMakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(makerAddress); + const initialMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); + const initialMakerZrxBalance = await zrxToken.balanceOf.callAsync(makerAddress); + const initialTakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(takerAddress); + const initialTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); + const initialTakerZrxBalance = await zrxToken.balanceOf.callAsync(takerAddress); + const initialFeeRecipientZrxBalance = await zrxToken.balanceOf.callAsync(feeRecipientAddress); + + await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); + + const finalMakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(makerAddress); + const finalMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); + const finalMakerZrxBalance = await zrxToken.balanceOf.callAsync(makerAddress); + const finalTakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(takerAddress); + const finalTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); + const finalTakerZrxBalance = await zrxToken.balanceOf.callAsync(takerAddress); + const finalFeeRecipientZrxBalance = await zrxToken.balanceOf.callAsync(feeRecipientAddress); + + expect(finalMakerBalanceA).to.be.bignumber.equal(initialMakerBalanceA.minus(signedOrder.makerAssetAmount)); + expect(finalMakerBalanceB).to.be.bignumber.equal(initialMakerBalanceB.plus(signedOrder.takerAssetAmount)); + expect(finalTakerBalanceA).to.be.bignumber.equal(initialTakerBalanceA.plus(signedOrder.makerAssetAmount)); + expect(finalTakerBalanceB).to.be.bignumber.equal(initialTakerBalanceB.minus(signedOrder.takerAssetAmount)); + expect(finalMakerZrxBalance).to.be.bignumber.equal(initialMakerZrxBalance.minus(signedOrder.makerFee)); + expect(finalTakerZrxBalance).to.be.bignumber.equal(initialTakerZrxBalance.minus(signedOrder.takerFee)); + expect(finalFeeRecipientZrxBalance).to.be.bignumber.equal( + initialFeeRecipientZrxBalance.plus(signedOrder.makerFee.plus(signedOrder.takerFee)), + ); + }); + it('should transfer the correct amounts when makerAssetAmount < takerAssetAmount', async () => { + signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(noReturnErc20Token.address), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(200), 18), + }); + + const initialMakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(makerAddress); + const initialMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); + const initialMakerZrxBalance = await zrxToken.balanceOf.callAsync(makerAddress); + const initialTakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(takerAddress); + const initialTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); + const initialTakerZrxBalance = await zrxToken.balanceOf.callAsync(takerAddress); + const initialFeeRecipientZrxBalance = await zrxToken.balanceOf.callAsync(feeRecipientAddress); + + await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); + + const finalMakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(makerAddress); + const finalMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); + const finalMakerZrxBalance = await zrxToken.balanceOf.callAsync(makerAddress); + const finalTakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(takerAddress); + const finalTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); + const finalTakerZrxBalance = await zrxToken.balanceOf.callAsync(takerAddress); + const finalFeeRecipientZrxBalance = await zrxToken.balanceOf.callAsync(feeRecipientAddress); + + expect(finalMakerBalanceA).to.be.bignumber.equal(initialMakerBalanceA.minus(signedOrder.makerAssetAmount)); + expect(finalMakerBalanceB).to.be.bignumber.equal(initialMakerBalanceB.plus(signedOrder.takerAssetAmount)); + expect(finalTakerBalanceA).to.be.bignumber.equal(initialTakerBalanceA.plus(signedOrder.makerAssetAmount)); + expect(finalTakerBalanceB).to.be.bignumber.equal(initialTakerBalanceB.minus(signedOrder.takerAssetAmount)); + expect(finalMakerZrxBalance).to.be.bignumber.equal(initialMakerZrxBalance.minus(signedOrder.makerFee)); + expect(finalTakerZrxBalance).to.be.bignumber.equal(initialTakerZrxBalance.minus(signedOrder.takerFee)); + expect(finalFeeRecipientZrxBalance).to.be.bignumber.equal( + initialFeeRecipientZrxBalance.plus(signedOrder.makerFee.plus(signedOrder.takerFee)), + ); + }); + }); + + describe('cancelOrder', () => { + beforeEach(async () => { + erc20Balances = await erc20Wrapper.getBalancesAsync(); + signedOrder = await orderFactory.newSignedOrderAsync(); + }); + + it('should throw if not sent by maker', async () => { + return expectTransactionFailedAsync( + exchangeWrapper.cancelOrderAsync(signedOrder, takerAddress), + RevertReason.InvalidMaker, + ); + }); + + it('should throw if makerAssetAmount is 0', async () => { + signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber(0), + }); + + return expectTransactionFailedAsync( + exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress), + RevertReason.OrderUnfillable, + ); + }); + + it('should throw if takerAssetAmount is 0', async () => { + signedOrder = await orderFactory.newSignedOrderAsync({ + takerAssetAmount: new BigNumber(0), + }); + + return expectTransactionFailedAsync( + exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress), + RevertReason.OrderUnfillable, + ); + }); + + it('should be able to cancel a full order', async () => { + await exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); + return expectTransactionFailedAsync( + exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { + takerAssetFillAmount: signedOrder.takerAssetAmount.div(2), + }), + RevertReason.OrderUnfillable, + ); + }); + + it('should log 1 event with correct arguments', async () => { + const res = await exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); + expect(res.logs).to.have.length(1); + + const log = res.logs[0] as LogWithDecodedArgs<ExchangeCancelEventArgs>; + const logArgs = log.args; + + expect(signedOrder.makerAddress).to.be.equal(logArgs.makerAddress); + expect(signedOrder.makerAddress).to.be.equal(logArgs.senderAddress); + expect(signedOrder.feeRecipientAddress).to.be.equal(logArgs.feeRecipientAddress); + expect(signedOrder.makerAssetData).to.be.equal(logArgs.makerAssetData); + expect(signedOrder.takerAssetData).to.be.equal(logArgs.takerAssetData); + expect(orderHashUtils.getOrderHashHex(signedOrder)).to.be.equal(logArgs.orderHash); + }); + + it('should throw if already cancelled', async () => { + await exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); + return expectTransactionFailedAsync( + exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress), + RevertReason.OrderUnfillable, + ); + }); + + it('should throw if order is expired', async () => { + const currentTimestamp = await getLatestBlockTimestampAsync(); + signedOrder = await orderFactory.newSignedOrderAsync({ + expirationTimeSeconds: new BigNumber(currentTimestamp).sub(10), + }); + return expectTransactionFailedAsync( + exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress), + RevertReason.OrderUnfillable, + ); + }); + + it('should throw if rounding error is greater than 0.1%', async () => { + signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber(1001), + takerAssetAmount: new BigNumber(3), + }); + + const fillTakerAssetAmount1 = new BigNumber(2); + await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { + takerAssetFillAmount: fillTakerAssetAmount1, + }); + + const fillTakerAssetAmount2 = new BigNumber(1); + return expectTransactionFailedAsync( + exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { + takerAssetFillAmount: fillTakerAssetAmount2, + }), + RevertReason.RoundingError, + ); + }); + }); + + describe('cancelOrdersUpTo', () => { + it('should fail to set orderEpoch less than current orderEpoch', async () => { + const orderEpoch = new BigNumber(1); + await exchangeWrapper.cancelOrdersUpToAsync(orderEpoch, makerAddress); + const lesserOrderEpoch = new BigNumber(0); + return expectTransactionFailedAsync( + exchangeWrapper.cancelOrdersUpToAsync(lesserOrderEpoch, makerAddress), + RevertReason.InvalidNewOrderEpoch, + ); + }); + + it('should fail to set orderEpoch equal to existing orderEpoch', async () => { + const orderEpoch = new BigNumber(1); + await exchangeWrapper.cancelOrdersUpToAsync(orderEpoch, makerAddress); + return expectTransactionFailedAsync( + exchangeWrapper.cancelOrdersUpToAsync(orderEpoch, makerAddress), + RevertReason.InvalidNewOrderEpoch, + ); + }); + + it('should cancel only orders with a orderEpoch less than existing orderEpoch', async () => { + // Cancel all transactions with a orderEpoch less than 1 + const orderEpoch = new BigNumber(1); + await exchangeWrapper.cancelOrdersUpToAsync(orderEpoch, makerAddress); + + // Create 3 orders with orderEpoch values: 0,1,2,3 + // Since we cancelled with orderEpoch=1, orders with orderEpoch<=1 will not be processed + erc20Balances = await erc20Wrapper.getBalancesAsync(); + const signedOrders = [ + await orderFactory.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(9), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(9), 18), + salt: new BigNumber(0), + }), + await orderFactory.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(79), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(79), 18), + salt: new BigNumber(1), + }), + await orderFactory.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(979), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(979), 18), + salt: new BigNumber(2), + }), + await orderFactory.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(7979), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(7979), 18), + salt: new BigNumber(3), + }), + ]; + await exchangeWrapper.batchFillOrdersNoThrowAsync(signedOrders, takerAddress, { + // HACK(albrow): We need to hardcode the gas estimate here because + // the Geth gas estimator doesn't work with the way we use + // delegatecall and swallow errors. + gas: 600000, + }); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + const fillMakerAssetAmount = signedOrders[2].makerAssetAmount.add(signedOrders[3].makerAssetAmount); + const fillTakerAssetAmount = signedOrders[2].takerAssetAmount.add(signedOrders[3].takerAssetAmount); + const makerFee = signedOrders[2].makerFee.add(signedOrders[3].makerFee); + const takerFee = signedOrders[2].takerFee.add(signedOrders[3].takerFee); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(fillMakerAssetAmount), + ); + expect(newBalances[makerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultTakerAssetAddress].add(fillTakerAssetAmount), + ); + expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][zrxToken.address].minus(makerFee), + ); + expect(newBalances[takerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultTakerAssetAddress].minus(fillTakerAssetAmount), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].add(fillMakerAssetAmount), + ); + expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[takerAddress][zrxToken.address].minus(takerFee), + ); + expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[feeRecipientAddress][zrxToken.address].add(makerFee.add(takerFee)), + ); + }); + }); + + describe('Testing Exchange of ERC721 Tokens', () => { + it('should throw when maker does not own the token with id makerAssetId', async () => { + // Construct Exchange parameters + const makerAssetId = erc721TakerAssetIds[0]; + const takerAssetId = erc721TakerAssetIds[1]; + signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber(1), + takerAssetAmount: new BigNumber(1), + makerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), + takerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, takerAssetId), + }); + // Verify pre-conditions + const initialOwnerMakerAsset = await erc721Token.ownerOf.callAsync(makerAssetId); + expect(initialOwnerMakerAsset).to.be.bignumber.not.equal(makerAddress); + const initialOwnerTakerAsset = await erc721Token.ownerOf.callAsync(takerAssetId); + expect(initialOwnerTakerAsset).to.be.bignumber.equal(takerAddress); + // Call Exchange + const takerAssetFillAmount = signedOrder.takerAssetAmount; + return expectTransactionFailedAsync( + exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }), + RevertReason.TransferFailed, + ); + }); + + it('should throw when taker does not own the token with id takerAssetId', async () => { + // Construct Exchange parameters + const makerAssetId = erc721MakerAssetIds[0]; + const takerAssetId = erc721MakerAssetIds[1]; + signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber(1), + takerAssetAmount: new BigNumber(1), + makerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), + takerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, takerAssetId), + }); + // Verify pre-conditions + const initialOwnerMakerAsset = await erc721Token.ownerOf.callAsync(makerAssetId); + expect(initialOwnerMakerAsset).to.be.bignumber.equal(makerAddress); + const initialOwnerTakerAsset = await erc721Token.ownerOf.callAsync(takerAssetId); + expect(initialOwnerTakerAsset).to.be.bignumber.not.equal(takerAddress); + // Call Exchange + const takerAssetFillAmount = signedOrder.takerAssetAmount; + return expectTransactionFailedAsync( + exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }), + RevertReason.TransferFailed, + ); + }); + + it('should throw when makerAssetAmount is greater than 1', async () => { + // Construct Exchange parameters + const makerAssetId = erc721MakerAssetIds[0]; + const takerAssetId = erc721TakerAssetIds[0]; + signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber(2), + takerAssetAmount: new BigNumber(1), + makerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), + takerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, takerAssetId), + }); + // Verify pre-conditions + const initialOwnerMakerAsset = await erc721Token.ownerOf.callAsync(makerAssetId); + expect(initialOwnerMakerAsset).to.be.bignumber.equal(makerAddress); + const initialOwnerTakerAsset = await erc721Token.ownerOf.callAsync(takerAssetId); + expect(initialOwnerTakerAsset).to.be.bignumber.equal(takerAddress); + // Call Exchange + const takerAssetFillAmount = signedOrder.takerAssetAmount; + return expectTransactionFailedAsync( + exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }), + RevertReason.InvalidAmount, + ); + }); + + it('should throw when takerAssetAmount is greater than 1', async () => { + // Construct Exchange parameters + const makerAssetId = erc721MakerAssetIds[0]; + const takerAssetId = erc721TakerAssetIds[0]; + signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber(1), + takerAssetAmount: new BigNumber(500), + makerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), + takerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, takerAssetId), + }); + // Verify pre-conditions + const initialOwnerMakerAsset = await erc721Token.ownerOf.callAsync(makerAssetId); + expect(initialOwnerMakerAsset).to.be.bignumber.equal(makerAddress); + const initialOwnerTakerAsset = await erc721Token.ownerOf.callAsync(takerAssetId); + expect(initialOwnerTakerAsset).to.be.bignumber.equal(takerAddress); + // Call Exchange + const takerAssetFillAmount = signedOrder.takerAssetAmount; + return expectTransactionFailedAsync( + exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }), + RevertReason.InvalidAmount, + ); + }); + + it('should throw on partial fill', async () => { + // Construct Exchange parameters + const makerAssetId = erc721MakerAssetIds[0]; + signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber(1), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), + makerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultTakerAssetAddress), + }); + // Call Exchange + const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); + return expectTransactionFailedAsync( + exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }), + RevertReason.RoundingError, + ); + }); + }); + + describe('Testing exchange of multiple assets', () => { + it('should allow multiple assets to be exchanged for a single asset', async () => { + const makerAmounts = [new BigNumber(10), new BigNumber(20)]; + const makerNestedAssetData = [ + assetDataUtils.encodeERC20AssetData(erc20TokenA.address), + assetDataUtils.encodeERC20AssetData(erc20TokenB.address), + ]; + const makerAssetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData( + makerAmounts, + makerNestedAssetData, + ); + const makerAssetAmount = new BigNumber(1); + const takerAssetData = assetDataUtils.encodeERC20AssetData(zrxToken.address); + const takerAssetAmount = new BigNumber(10); + signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData, + takerAssetData, + makerAssetAmount, + takerAssetAmount, + makerFee: constants.ZERO_AMOUNT, + takerFee: constants.ZERO_AMOUNT, + }); + + const initialMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); + const initialMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); + const initialMakerZrxBalance = await zrxToken.balanceOf.callAsync(makerAddress); + const initialTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); + const initialTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); + const initialTakerZrxBalance = await zrxToken.balanceOf.callAsync(takerAddress); + + await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); + + const finalMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); + const finalMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); + const finalMakerZrxBalance = await zrxToken.balanceOf.callAsync(makerAddress); + const finalTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); + const finalTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); + const finalTakerZrxBalance = await zrxToken.balanceOf.callAsync(takerAddress); + + expect(finalMakerBalanceA).to.be.bignumber.equal( + initialMakerBalanceA.minus(makerAmounts[0].times(makerAssetAmount)), + ); + expect(finalMakerBalanceB).to.be.bignumber.equal( + initialMakerBalanceB.minus(makerAmounts[1].times(makerAssetAmount)), + ); + expect(finalMakerZrxBalance).to.be.bignumber.equal(initialMakerZrxBalance.plus(takerAssetAmount)); + expect(finalTakerBalanceA).to.be.bignumber.equal( + initialTakerBalanceA.plus(makerAmounts[0].times(makerAssetAmount)), + ); + expect(finalTakerBalanceB).to.be.bignumber.equal( + initialTakerBalanceB.plus(makerAmounts[1].times(makerAssetAmount)), + ); + expect(finalTakerZrxBalance).to.be.bignumber.equal(initialTakerZrxBalance.minus(takerAssetAmount)); + }); + it('should allow multiple assets to be exchanged for multiple assets', async () => { + const makerAmounts = [new BigNumber(10), new BigNumber(20)]; + const makerNestedAssetData = [ + assetDataUtils.encodeERC20AssetData(erc20TokenA.address), + assetDataUtils.encodeERC20AssetData(erc20TokenB.address), + ]; + const makerAssetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData( + makerAmounts, + makerNestedAssetData, + ); + const makerAssetAmount = new BigNumber(1); + const takerAmounts = [new BigNumber(10), new BigNumber(1)]; + const takerAssetId = erc721TakerAssetIds[0]; + const takerNestedAssetData = [ + assetDataUtils.encodeERC20AssetData(zrxToken.address), + assetDataUtils.encodeERC721AssetData(erc721Token.address, takerAssetId), + ]; + const takerAssetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData( + takerAmounts, + takerNestedAssetData, + ); + const takerAssetAmount = new BigNumber(1); + signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData, + takerAssetData, + makerAssetAmount, + takerAssetAmount, + makerFee: constants.ZERO_AMOUNT, + takerFee: constants.ZERO_AMOUNT, + }); + + const initialMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); + const initialMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); + const initialMakerZrxBalance = await zrxToken.balanceOf.callAsync(makerAddress); + const initialTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); + const initialTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); + const initialTakerZrxBalance = await zrxToken.balanceOf.callAsync(takerAddress); + const initialOwnerTakerAsset = await erc721Token.ownerOf.callAsync(takerAssetId); + expect(initialOwnerTakerAsset).to.be.bignumber.equal(takerAddress); + + await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); + + const finalMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); + const finalMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); + const finalMakerZrxBalance = await zrxToken.balanceOf.callAsync(makerAddress); + const finalTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); + const finalTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); + const finalTakerZrxBalance = await zrxToken.balanceOf.callAsync(takerAddress); + const finalOwnerTakerAsset = await erc721Token.ownerOf.callAsync(takerAssetId); + + expect(finalMakerBalanceA).to.be.bignumber.equal( + initialMakerBalanceA.minus(makerAmounts[0].times(makerAssetAmount)), + ); + expect(finalMakerBalanceB).to.be.bignumber.equal( + initialMakerBalanceB.minus(makerAmounts[1].times(makerAssetAmount)), + ); + expect(finalMakerZrxBalance).to.be.bignumber.equal( + initialMakerZrxBalance.plus(takerAmounts[0].times(takerAssetAmount)), + ); + expect(finalTakerBalanceA).to.be.bignumber.equal( + initialTakerBalanceA.plus(makerAmounts[0].times(makerAssetAmount)), + ); + expect(finalTakerBalanceB).to.be.bignumber.equal( + initialTakerBalanceB.plus(makerAmounts[1].times(makerAssetAmount)), + ); + expect(finalTakerZrxBalance).to.be.bignumber.equal( + initialTakerZrxBalance.minus(takerAmounts[0].times(takerAssetAmount)), + ); + expect(finalOwnerTakerAsset).to.be.equal(makerAddress); + }); + it('should allow an order selling multiple assets to be partially filled', async () => { + const makerAmounts = [new BigNumber(10), new BigNumber(20)]; + const makerNestedAssetData = [ + assetDataUtils.encodeERC20AssetData(erc20TokenA.address), + assetDataUtils.encodeERC20AssetData(erc20TokenB.address), + ]; + const makerAssetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData( + makerAmounts, + makerNestedAssetData, + ); + const makerAssetAmount = new BigNumber(30); + const takerAssetData = assetDataUtils.encodeERC20AssetData(zrxToken.address); + const takerAssetAmount = new BigNumber(10); + signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData, + takerAssetData, + makerAssetAmount, + takerAssetAmount, + makerFee: constants.ZERO_AMOUNT, + takerFee: constants.ZERO_AMOUNT, + }); + + const initialMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); + const initialMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); + const initialMakerZrxBalance = await zrxToken.balanceOf.callAsync(makerAddress); + const initialTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); + const initialTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); + const initialTakerZrxBalance = await zrxToken.balanceOf.callAsync(takerAddress); + + const takerAssetFillAmount = takerAssetAmount.dividedToIntegerBy(2); + await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { + takerAssetFillAmount, + }); + + const finalMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); + const finalMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); + const finalMakerZrxBalance = await zrxToken.balanceOf.callAsync(makerAddress); + const finalTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); + const finalTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); + const finalTakerZrxBalance = await zrxToken.balanceOf.callAsync(takerAddress); + + expect(finalMakerBalanceA).to.be.bignumber.equal( + initialMakerBalanceA.minus( + makerAmounts[0].times( + makerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), + ), + ), + ); + expect(finalMakerBalanceB).to.be.bignumber.equal( + initialMakerBalanceB.minus( + makerAmounts[1].times( + makerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), + ), + ), + ); + expect(finalMakerZrxBalance).to.be.bignumber.equal( + initialMakerZrxBalance.plus( + takerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), + ), + ); + expect(finalTakerBalanceA).to.be.bignumber.equal( + initialTakerBalanceA.plus( + makerAmounts[0].times( + makerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), + ), + ), + ); + expect(finalTakerBalanceB).to.be.bignumber.equal( + initialTakerBalanceB.plus( + makerAmounts[1].times( + makerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), + ), + ), + ); + expect(finalTakerZrxBalance).to.be.bignumber.equal( + initialTakerZrxBalance.minus( + takerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), + ), + ); + }); + it('should allow an order buying multiple assets to be partially filled', async () => { + const takerAmounts = [new BigNumber(10), new BigNumber(20)]; + const takerNestedAssetData = [ + assetDataUtils.encodeERC20AssetData(erc20TokenA.address), + assetDataUtils.encodeERC20AssetData(erc20TokenB.address), + ]; + const takerAssetData = assetDataInterface.MultiAsset.getABIEncodedTransactionData( + takerAmounts, + takerNestedAssetData, + ); + const takerAssetAmount = new BigNumber(30); + const makerAssetData = assetDataUtils.encodeERC20AssetData(zrxToken.address); + const makerAssetAmount = new BigNumber(10); + signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData, + takerAssetData, + makerAssetAmount, + takerAssetAmount, + makerFee: constants.ZERO_AMOUNT, + takerFee: constants.ZERO_AMOUNT, + }); + + const initialMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); + const initialMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); + const initialMakerZrxBalance = await zrxToken.balanceOf.callAsync(makerAddress); + const initialTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); + const initialTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); + const initialTakerZrxBalance = await zrxToken.balanceOf.callAsync(takerAddress); + + const takerAssetFillAmount = takerAssetAmount.dividedToIntegerBy(2); + await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { + takerAssetFillAmount, + }); + + const finalMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); + const finalMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); + const finalMakerZrxBalance = await zrxToken.balanceOf.callAsync(makerAddress); + const finalTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); + const finalTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); + const finalTakerZrxBalance = await zrxToken.balanceOf.callAsync(takerAddress); + + expect(finalMakerBalanceA).to.be.bignumber.equal( + initialMakerBalanceA.plus( + takerAmounts[0].times( + takerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), + ), + ), + ); + expect(finalMakerBalanceB).to.be.bignumber.equal( + initialMakerBalanceB.plus( + takerAmounts[1].times( + takerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), + ), + ), + ); + expect(finalMakerZrxBalance).to.be.bignumber.equal( + initialMakerZrxBalance.minus( + makerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), + ), + ); + expect(finalTakerBalanceA).to.be.bignumber.equal( + initialTakerBalanceA.minus( + takerAmounts[0].times( + takerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), + ), + ), + ); + expect(finalTakerBalanceB).to.be.bignumber.equal( + initialTakerBalanceB.minus( + takerAmounts[1].times( + takerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), + ), + ), + ); + expect(finalTakerZrxBalance).to.be.bignumber.equal( + initialTakerZrxBalance.plus( + makerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), + ), + ); + }); + }); + + describe('getOrderInfo', () => { + beforeEach(async () => { + signedOrder = await orderFactory.newSignedOrderAsync(); + }); + it('should return the correct orderInfo for an unfilled valid order', async () => { + const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + const expectedTakerAssetFilledAmount = new BigNumber(0); + const expectedOrderStatus = OrderStatus.FILLABLE; + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); + expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); + }); + it('should return the correct orderInfo for a fully filled order', async () => { + await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); + const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + const expectedTakerAssetFilledAmount = signedOrder.takerAssetAmount; + const expectedOrderStatus = OrderStatus.FULLY_FILLED; + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); + expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); + }); + it('should return the correct orderInfo for a partially filled order', async () => { + const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); + await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); + const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + const expectedTakerAssetFilledAmount = takerAssetFillAmount; + const expectedOrderStatus = OrderStatus.FILLABLE; + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); + expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); + }); + it('should return the correct orderInfo for a cancelled and unfilled order', async () => { + await exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); + const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + const expectedTakerAssetFilledAmount = new BigNumber(0); + const expectedOrderStatus = OrderStatus.CANCELLED; + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); + expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); + }); + it('should return the correct orderInfo for a cancelled and partially filled order', async () => { + const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); + await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); + await exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); + const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + const expectedTakerAssetFilledAmount = takerAssetFillAmount; + const expectedOrderStatus = OrderStatus.CANCELLED; + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); + expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); + }); + it('should return the correct orderInfo for an expired and unfilled order', async () => { + const currentTimestamp = await getLatestBlockTimestampAsync(); + const timeUntilExpiration = signedOrder.expirationTimeSeconds.minus(currentTimestamp).toNumber(); + await increaseTimeAndMineBlockAsync(timeUntilExpiration); + const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + const expectedTakerAssetFilledAmount = new BigNumber(0); + const expectedOrderStatus = OrderStatus.EXPIRED; + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); + expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); + }); + it('should return the correct orderInfo for an expired and partially filled order', async () => { + const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); + await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); + const currentTimestamp = await getLatestBlockTimestampAsync(); + const timeUntilExpiration = signedOrder.expirationTimeSeconds.minus(currentTimestamp).toNumber(); + await increaseTimeAndMineBlockAsync(timeUntilExpiration); + const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + const expectedTakerAssetFilledAmount = takerAssetFillAmount; + const expectedOrderStatus = OrderStatus.EXPIRED; + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); + expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); + }); + it('should return the correct orderInfo for an expired and fully filled order', async () => { + await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); + const currentTimestamp = await getLatestBlockTimestampAsync(); + const timeUntilExpiration = signedOrder.expirationTimeSeconds.minus(currentTimestamp).toNumber(); + await increaseTimeAndMineBlockAsync(timeUntilExpiration); + const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + const expectedTakerAssetFilledAmount = signedOrder.takerAssetAmount; + // FULLY_FILLED takes precedence over EXPIRED + const expectedOrderStatus = OrderStatus.FULLY_FILLED; + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); + expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); + }); + it('should return the correct orderInfo for an order with a makerAssetAmount of 0', async () => { + signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetAmount: new BigNumber(0) }); + const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + const expectedTakerAssetFilledAmount = new BigNumber(0); + const expectedOrderStatus = OrderStatus.INVALID_MAKER_ASSET_AMOUNT; + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); + expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); + }); + it('should return the correct orderInfo for an order with a takerAssetAmount of 0', async () => { + signedOrder = await orderFactory.newSignedOrderAsync({ takerAssetAmount: new BigNumber(0) }); + const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + const expectedTakerAssetFilledAmount = new BigNumber(0); + const expectedOrderStatus = OrderStatus.INVALID_TAKER_ASSET_AMOUNT; + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); + expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); + }); + }); +}); +// tslint:disable:max-file-line-count +// tslint:enable:no-unnecessary-type-assertion diff --git a/contracts/core/test/exchange/dispatcher.ts b/contracts/core/test/exchange/dispatcher.ts new file mode 100644 index 000000000..9bc5cbcce --- /dev/null +++ b/contracts/core/test/exchange/dispatcher.ts @@ -0,0 +1,284 @@ +import { + chaiSetup, + constants, + expectTransactionFailedAsync, + LogDecoder, + provider, + txDefaults, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { assetDataUtils } from '@0x/order-utils'; +import { AssetProxyId, RevertReason } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import * as chai from 'chai'; +import { LogWithDecodedArgs } from 'ethereum-types'; +import * as _ from 'lodash'; + +import { DummyERC20TokenContract } from '../../generated-wrappers/dummy_erc20_token'; +import { ERC20ProxyContract } from '../../generated-wrappers/erc20_proxy'; +import { ERC721ProxyContract } from '../../generated-wrappers/erc721_proxy'; +import { + TestAssetProxyDispatcherAssetProxyRegisteredEventArgs, + TestAssetProxyDispatcherContract, +} from '../../generated-wrappers/test_asset_proxy_dispatcher'; +import { artifacts } from '../../src/artifacts'; +import { ERC20Wrapper } from '../utils/erc20_wrapper'; +import { ERC721Wrapper } from '../utils/erc721_wrapper'; + +chaiSetup.configure(); +const expect = chai.expect; +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); +// tslint:disable:no-unnecessary-type-assertion +describe('AssetProxyDispatcher', () => { + let owner: string; + let notOwner: string; + let makerAddress: string; + let takerAddress: string; + + let zrxToken: DummyERC20TokenContract; + let erc20Proxy: ERC20ProxyContract; + let erc721Proxy: ERC721ProxyContract; + let assetProxyDispatcher: TestAssetProxyDispatcherContract; + + let erc20Wrapper: ERC20Wrapper; + let erc721Wrapper: ERC721Wrapper; + + before(async () => { + await blockchainLifecycle.startAsync(); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + before(async () => { + // Setup accounts & addresses + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + const usedAddresses = ([owner, notOwner, makerAddress, takerAddress] = _.slice(accounts, 0, 4)); + + erc20Wrapper = new ERC20Wrapper(provider, usedAddresses, owner); + erc721Wrapper = new ERC721Wrapper(provider, usedAddresses, owner); + + const numDummyErc20ToDeploy = 1; + [zrxToken] = await erc20Wrapper.deployDummyTokensAsync(numDummyErc20ToDeploy, constants.DUMMY_TOKEN_DECIMALS); + erc20Proxy = await erc20Wrapper.deployProxyAsync(); + await erc20Wrapper.setBalancesAndAllowancesAsync(); + + erc721Proxy = await erc721Wrapper.deployProxyAsync(); + + assetProxyDispatcher = await TestAssetProxyDispatcherContract.deployFrom0xArtifactAsync( + artifacts.TestAssetProxyDispatcher, + provider, + txDefaults, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Proxy.addAuthorizedAddress.sendTransactionAsync(assetProxyDispatcher.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Proxy.addAuthorizedAddress.sendTransactionAsync(assetProxyDispatcher.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + }); + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + describe('registerAssetProxy', () => { + it('should record proxy upon registration', async () => { + await web3Wrapper.awaitTransactionSuccessAsync( + await assetProxyDispatcher.registerAssetProxy.sendTransactionAsync(erc20Proxy.address, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const proxyAddress = await assetProxyDispatcher.getAssetProxy.callAsync(AssetProxyId.ERC20); + expect(proxyAddress).to.be.equal(erc20Proxy.address); + }); + + it('should be able to record multiple proxies', async () => { + // Record first proxy + await web3Wrapper.awaitTransactionSuccessAsync( + await assetProxyDispatcher.registerAssetProxy.sendTransactionAsync(erc20Proxy.address, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + let proxyAddress = await assetProxyDispatcher.getAssetProxy.callAsync(AssetProxyId.ERC20); + expect(proxyAddress).to.be.equal(erc20Proxy.address); + // Record another proxy + await web3Wrapper.awaitTransactionSuccessAsync( + await assetProxyDispatcher.registerAssetProxy.sendTransactionAsync(erc721Proxy.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + proxyAddress = await assetProxyDispatcher.getAssetProxy.callAsync(AssetProxyId.ERC721); + expect(proxyAddress).to.be.equal(erc721Proxy.address); + }); + + it('should throw if a proxy with the same id is already registered', async () => { + // Initial registration + await web3Wrapper.awaitTransactionSuccessAsync( + await assetProxyDispatcher.registerAssetProxy.sendTransactionAsync(erc20Proxy.address, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const proxyAddress = await assetProxyDispatcher.getAssetProxy.callAsync(AssetProxyId.ERC20); + expect(proxyAddress).to.be.equal(erc20Proxy.address); + // Deploy a new version of the ERC20 Transfer Proxy contract + const newErc20TransferProxy = await ERC20ProxyContract.deployFrom0xArtifactAsync( + artifacts.ERC20Proxy, + provider, + txDefaults, + ); + // Register new ERC20 Transfer Proxy contract + return expectTransactionFailedAsync( + assetProxyDispatcher.registerAssetProxy.sendTransactionAsync(newErc20TransferProxy.address, { + from: owner, + }), + RevertReason.AssetProxyAlreadyExists, + ); + }); + + it('should throw if requesting address is not owner', async () => { + return expectTransactionFailedAsync( + assetProxyDispatcher.registerAssetProxy.sendTransactionAsync(erc20Proxy.address, { from: notOwner }), + RevertReason.OnlyContractOwner, + ); + }); + + it('should log an event with correct arguments when an asset proxy is registered', async () => { + const logDecoder = new LogDecoder(web3Wrapper, artifacts); + const txReceipt = await logDecoder.getTxWithDecodedLogsAsync( + await assetProxyDispatcher.registerAssetProxy.sendTransactionAsync(erc20Proxy.address, { from: owner }), + ); + const logs = txReceipt.logs; + const log = logs[0] as LogWithDecodedArgs<TestAssetProxyDispatcherAssetProxyRegisteredEventArgs>; + expect(log.args.id).to.equal(AssetProxyId.ERC20); + expect(log.args.assetProxy).to.equal(erc20Proxy.address); + }); + }); + + describe('getAssetProxy', () => { + it('should return correct address of registered proxy', async () => { + await web3Wrapper.awaitTransactionSuccessAsync( + await assetProxyDispatcher.registerAssetProxy.sendTransactionAsync(erc20Proxy.address, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const proxyAddress = await assetProxyDispatcher.getAssetProxy.callAsync(AssetProxyId.ERC20); + expect(proxyAddress).to.be.equal(erc20Proxy.address); + }); + + it('should return NULL address if requesting non-existent proxy', async () => { + const proxyAddress = await assetProxyDispatcher.getAssetProxy.callAsync(AssetProxyId.ERC20); + expect(proxyAddress).to.be.equal(constants.NULL_ADDRESS); + }); + }); + + describe('dispatchTransferFrom', () => { + it('should dispatch transfer to registered proxy', async () => { + // Register ERC20 proxy + await web3Wrapper.awaitTransactionSuccessAsync( + await assetProxyDispatcher.registerAssetProxy.sendTransactionAsync(erc20Proxy.address, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + // Construct metadata for ERC20 proxy + const encodedAssetData = assetDataUtils.encodeERC20AssetData(zrxToken.address); + + // Perform a transfer from makerAddress to takerAddress + const erc20Balances = await erc20Wrapper.getBalancesAsync(); + const amount = new BigNumber(10); + await web3Wrapper.awaitTransactionSuccessAsync( + await assetProxyDispatcher.publicDispatchTransferFrom.sendTransactionAsync( + encodedAssetData, + makerAddress, + takerAddress, + amount, + { from: owner }, + ), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + // Verify transfer was successful + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][zrxToken.address].minus(amount), + ); + expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[takerAddress][zrxToken.address].add(amount), + ); + }); + + it('should not dispatch a transfer if amount == 0', async () => { + // Register ERC20 proxy + await web3Wrapper.awaitTransactionSuccessAsync( + await assetProxyDispatcher.registerAssetProxy.sendTransactionAsync(erc20Proxy.address, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + // Construct metadata for ERC20 proxy + const encodedAssetData = assetDataUtils.encodeERC20AssetData(zrxToken.address); + + // Perform a transfer from makerAddress to takerAddress + const erc20Balances = await erc20Wrapper.getBalancesAsync(); + const amount = constants.ZERO_AMOUNT; + const txReceipt = await web3Wrapper.awaitTransactionSuccessAsync( + await assetProxyDispatcher.publicDispatchTransferFrom.sendTransactionAsync( + encodedAssetData, + makerAddress, + takerAddress, + amount, + { from: owner }, + ), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + expect(txReceipt.logs.length).to.be.equal(0); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.deep.equal(erc20Balances); + }); + + it('should not dispatch a transfer if from == to', async () => { + // Register ERC20 proxy + await web3Wrapper.awaitTransactionSuccessAsync( + await assetProxyDispatcher.registerAssetProxy.sendTransactionAsync(erc20Proxy.address, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + // Construct metadata for ERC20 proxy + const encodedAssetData = assetDataUtils.encodeERC20AssetData(zrxToken.address); + + // Perform a transfer from makerAddress to takerAddress + const erc20Balances = await erc20Wrapper.getBalancesAsync(); + const amount = new BigNumber(10); + const txReceipt = await web3Wrapper.awaitTransactionSuccessAsync( + await assetProxyDispatcher.publicDispatchTransferFrom.sendTransactionAsync( + encodedAssetData, + makerAddress, + makerAddress, + amount, + { from: owner }, + ), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + expect(txReceipt.logs.length).to.be.equal(0); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.deep.equal(erc20Balances); + }); + + it('should throw if dispatching to unregistered proxy', async () => { + // Construct metadata for ERC20 proxy + const encodedAssetData = assetDataUtils.encodeERC20AssetData(zrxToken.address); + // Perform a transfer from makerAddress to takerAddress + const amount = new BigNumber(10); + return expectTransactionFailedAsync( + assetProxyDispatcher.publicDispatchTransferFrom.sendTransactionAsync( + encodedAssetData, + makerAddress, + takerAddress, + amount, + { from: owner }, + ), + RevertReason.AssetProxyDoesNotExist, + ); + }); + }); +}); +// tslint:enable:no-unnecessary-type-assertion diff --git a/contracts/core/test/exchange/fill_order.ts b/contracts/core/test/exchange/fill_order.ts new file mode 100644 index 000000000..2bdbe4855 --- /dev/null +++ b/contracts/core/test/exchange/fill_order.ts @@ -0,0 +1,314 @@ +import { + AllowanceAmountScenario, + AssetDataScenario, + BalanceAmountScenario, + chaiSetup, + ExpirationTimeSecondsScenario, + FeeRecipientAddressScenario, + FillScenario, + OrderAssetAmountScenario, + provider, + TakerAssetFillAmountScenario, + TakerScenario, + txDefaults, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import * as _ from 'lodash'; + +import { + FillOrderCombinatorialUtils, + fillOrderCombinatorialUtilsFactoryAsync, +} from '../utils/fill_order_combinatorial_utils'; + +chaiSetup.configure(); +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); + +const defaultFillScenario = { + orderScenario: { + takerScenario: TakerScenario.Unspecified, + feeRecipientScenario: FeeRecipientAddressScenario.EthUserAddress, + makerAssetAmountScenario: OrderAssetAmountScenario.Large, + takerAssetAmountScenario: OrderAssetAmountScenario.Large, + makerFeeScenario: OrderAssetAmountScenario.Large, + takerFeeScenario: OrderAssetAmountScenario.Large, + expirationTimeSecondsScenario: ExpirationTimeSecondsScenario.InFuture, + makerAssetDataScenario: AssetDataScenario.ERC20NonZRXEighteenDecimals, + takerAssetDataScenario: AssetDataScenario.ERC20NonZRXEighteenDecimals, + }, + takerAssetFillAmountScenario: TakerAssetFillAmountScenario.LessThanRemainingFillableTakerAssetAmount, + makerStateScenario: { + traderAssetBalance: BalanceAmountScenario.Higher, + traderAssetAllowance: AllowanceAmountScenario.Higher, + zrxFeeBalance: BalanceAmountScenario.Higher, + zrxFeeAllowance: AllowanceAmountScenario.Higher, + }, + takerStateScenario: { + traderAssetBalance: BalanceAmountScenario.Higher, + traderAssetAllowance: AllowanceAmountScenario.Higher, + zrxFeeBalance: BalanceAmountScenario.Higher, + zrxFeeAllowance: AllowanceAmountScenario.Higher, + }, +}; + +describe('FillOrder Tests', () => { + let fillOrderCombinatorialUtils: FillOrderCombinatorialUtils; + + before(async () => { + await blockchainLifecycle.startAsync(); + fillOrderCombinatorialUtils = await fillOrderCombinatorialUtilsFactoryAsync(web3Wrapper, txDefaults); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + describe('fillOrder', () => { + const test = (fillScenarios: FillScenario[]) => { + _.forEach(fillScenarios, fillScenario => { + const description = `Combinatorial OrderFill: ${JSON.stringify(fillScenario)}`; + it(description, async () => { + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + }); + }; + + const allFillScenarios = FillOrderCombinatorialUtils.generateFillOrderCombinations(); + describe('Combinatorially generated fills orders', () => test(allFillScenarios)); + + it('should transfer the correct amounts when makerAssetAmount === takerAssetAmount', async () => { + const fillScenario = { + ...defaultFillScenario, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + it('should transfer the correct amounts when makerAssetAmount > takerAssetAmount', async () => { + const fillScenario = { + ...defaultFillScenario, + orderScenario: { + ...defaultFillScenario.orderScenario, + takerAssetAmountScenario: OrderAssetAmountScenario.Small, + }, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + it('should transfer the correct amounts when makerAssetAmount < takerAssetAmount', async () => { + const fillScenario = { + ...defaultFillScenario, + orderScenario: { + ...defaultFillScenario.orderScenario, + makerAssetAmountScenario: OrderAssetAmountScenario.Small, + }, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + it('should transfer the correct amounts when makerAssetAmount < takerAssetAmount with zero decimals', async () => { + const fillScenario = { + ...defaultFillScenario, + orderScenario: { + ...defaultFillScenario.orderScenario, + makerAssetAmountScenario: OrderAssetAmountScenario.Small, + makerAssetDataScenario: AssetDataScenario.ERC20ZeroDecimals, + }, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + it('should transfer the correct amounts when taker is specified and order is claimed by taker', async () => { + const fillScenario = { + ...defaultFillScenario, + orderScenario: { + ...defaultFillScenario.orderScenario, + takerScenario: TakerScenario.CorrectlySpecified, + }, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + it('should fill remaining value if takerAssetFillAmount > remaining takerAssetAmount', async () => { + const fillScenario = { + ...defaultFillScenario, + takerAssetFillAmountScenario: TakerAssetFillAmountScenario.GreaterThanRemainingFillableTakerAssetAmount, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + it('should throw when taker is specified and order is claimed by other', async () => { + const fillScenario = { + ...defaultFillScenario, + orderScenario: { + ...defaultFillScenario.orderScenario, + takerScenario: TakerScenario.IncorrectlySpecified, + }, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + + it('should throw if makerAssetAmount is 0', async () => { + const fillScenario = { + ...defaultFillScenario, + orderScenario: { + ...defaultFillScenario.orderScenario, + makerAssetAmountScenario: OrderAssetAmountScenario.Zero, + }, + takerAssetFillAmountScenario: TakerAssetFillAmountScenario.GreaterThanRemainingFillableTakerAssetAmount, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + + it('should throw if takerAssetAmount is 0', async () => { + const fillScenario = { + ...defaultFillScenario, + orderScenario: { + ...defaultFillScenario.orderScenario, + takerAssetAmountScenario: OrderAssetAmountScenario.Zero, + }, + takerAssetFillAmountScenario: TakerAssetFillAmountScenario.GreaterThanRemainingFillableTakerAssetAmount, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + + it('should throw if takerAssetFillAmount is 0', async () => { + const fillScenario = { + ...defaultFillScenario, + takerAssetFillAmountScenario: TakerAssetFillAmountScenario.Zero, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + + it('should throw if an order is expired', async () => { + const fillScenario = { + ...defaultFillScenario, + orderScenario: { + ...defaultFillScenario.orderScenario, + expirationTimeSecondsScenario: ExpirationTimeSecondsScenario.InPast, + }, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + + it('should throw if maker erc20Balances are too low to fill order', async () => { + const fillScenario = { + ...defaultFillScenario, + makerStateScenario: { + ...defaultFillScenario.makerStateScenario, + traderAssetBalance: BalanceAmountScenario.TooLow, + }, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + + it('should throw if taker erc20Balances are too low to fill order', async () => { + const fillScenario = { + ...defaultFillScenario, + takerStateScenario: { + ...defaultFillScenario.makerStateScenario, + traderAssetBalance: BalanceAmountScenario.TooLow, + }, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + + it('should throw if maker allowances are too low to fill order', async () => { + const fillScenario = { + ...defaultFillScenario, + makerStateScenario: { + ...defaultFillScenario.makerStateScenario, + traderAssetAllowance: AllowanceAmountScenario.TooLow, + }, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + + it('should throw if taker allowances are too low to fill order', async () => { + const fillScenario = { + ...defaultFillScenario, + takerStateScenario: { + ...defaultFillScenario.makerStateScenario, + traderAssetAllowance: AllowanceAmountScenario.TooLow, + }, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + }); + + describe('Testing exchange of ERC721 Tokens', () => { + it('should successfully exchange a single token between the maker and taker (via fillOrder)', async () => { + const fillScenario = { + ...defaultFillScenario, + orderScenario: { + ...defaultFillScenario.orderScenario, + makerAssetDataScenario: AssetDataScenario.ERC721, + takerAssetDataScenario: AssetDataScenario.ERC721, + }, + takerAssetFillAmountScenario: TakerAssetFillAmountScenario.ExactlyRemainingFillableTakerAssetAmount, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + + it('should successfully fill order when makerAsset is ERC721 and takerAsset is ERC20', async () => { + const fillScenario = { + ...defaultFillScenario, + orderScenario: { + ...defaultFillScenario.orderScenario, + makerAssetDataScenario: AssetDataScenario.ERC721, + takerAssetDataScenario: AssetDataScenario.ERC20NonZRXEighteenDecimals, + }, + takerAssetFillAmountScenario: TakerAssetFillAmountScenario.ExactlyRemainingFillableTakerAssetAmount, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario, true); + }); + + it('should successfully fill order when makerAsset is ERC20 and takerAsset is ERC721', async () => { + const fillScenario = { + ...defaultFillScenario, + orderScenario: { + ...defaultFillScenario.orderScenario, + makerAssetDataScenario: AssetDataScenario.ERC20NonZRXEighteenDecimals, + takerAssetDataScenario: AssetDataScenario.ERC721, + }, + takerAssetFillAmountScenario: TakerAssetFillAmountScenario.ExactlyRemainingFillableTakerAssetAmount, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + + it('should successfully fill order when makerAsset is ERC721 and approveAll is set for it', async () => { + const fillScenario = { + ...defaultFillScenario, + orderScenario: { + ...defaultFillScenario.orderScenario, + makerAssetDataScenario: AssetDataScenario.ERC721, + takerAssetDataScenario: AssetDataScenario.ERC20NonZRXEighteenDecimals, + }, + takerAssetFillAmountScenario: TakerAssetFillAmountScenario.ExactlyRemainingFillableTakerAssetAmount, + makerStateScenario: { + ...defaultFillScenario.makerStateScenario, + traderAssetAllowance: AllowanceAmountScenario.Unlimited, + }, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + + it('should successfully fill order when makerAsset and takerAsset are ERC721 and approveAll is set for them', async () => { + const fillScenario = { + ...defaultFillScenario, + orderScenario: { + ...defaultFillScenario.orderScenario, + makerAssetDataScenario: AssetDataScenario.ERC721, + takerAssetDataScenario: AssetDataScenario.ERC721, + }, + takerAssetFillAmountScenario: TakerAssetFillAmountScenario.ExactlyRemainingFillableTakerAssetAmount, + makerStateScenario: { + ...defaultFillScenario.makerStateScenario, + traderAssetAllowance: AllowanceAmountScenario.Unlimited, + }, + takerStateScenario: { + ...defaultFillScenario.takerStateScenario, + traderAssetAllowance: AllowanceAmountScenario.Unlimited, + }, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); + }); +}); diff --git a/contracts/core/test/exchange/internal.ts b/contracts/core/test/exchange/internal.ts new file mode 100644 index 000000000..972f5efb6 --- /dev/null +++ b/contracts/core/test/exchange/internal.ts @@ -0,0 +1,472 @@ +import { + bytes32Values, + chaiSetup, + constants, + FillResults, + getRevertReasonOrErrorMessageForSendTransactionAsync, + provider, + testCombinatoriallyWithReferenceFuncAsync, + txDefaults, + uint256Values, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { Order, RevertReason, SignedOrder } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import * as chai from 'chai'; +import * as _ from 'lodash'; + +import { TestExchangeInternalsContract } from '../../generated-wrappers/test_exchange_internals'; +import { artifacts } from '../../src/artifacts'; + +chaiSetup.configure(); +const expect = chai.expect; + +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); + +const MAX_UINT256 = new BigNumber(2).pow(256).minus(1); + +const emptyOrder: Order = { + senderAddress: constants.NULL_ADDRESS, + makerAddress: constants.NULL_ADDRESS, + takerAddress: constants.NULL_ADDRESS, + makerFee: new BigNumber(0), + takerFee: new BigNumber(0), + makerAssetAmount: new BigNumber(0), + takerAssetAmount: new BigNumber(0), + makerAssetData: '0x', + takerAssetData: '0x', + salt: new BigNumber(0), + exchangeAddress: constants.NULL_ADDRESS, + feeRecipientAddress: constants.NULL_ADDRESS, + expirationTimeSeconds: new BigNumber(0), +}; + +const emptySignedOrder: SignedOrder = { + ...emptyOrder, + signature: '', +}; + +const overflowErrorForCall = new Error(RevertReason.Uint256Overflow); + +describe('Exchange core internal functions', () => { + let testExchange: TestExchangeInternalsContract; + let overflowErrorForSendTransaction: Error | undefined; + let divisionByZeroErrorForCall: Error | undefined; + let roundingErrorForCall: Error | undefined; + + before(async () => { + await blockchainLifecycle.startAsync(); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + before(async () => { + testExchange = await TestExchangeInternalsContract.deployFrom0xArtifactAsync( + artifacts.TestExchangeInternals, + provider, + txDefaults, + ); + overflowErrorForSendTransaction = new Error( + await getRevertReasonOrErrorMessageForSendTransactionAsync(RevertReason.Uint256Overflow), + ); + divisionByZeroErrorForCall = new Error(RevertReason.DivisionByZero); + roundingErrorForCall = new Error(RevertReason.RoundingError); + }); + // Note(albrow): Don't forget to add beforeEach and afterEach calls to reset + // the blockchain state for any tests which modify it! + + async function referenceIsRoundingErrorFloorAsync( + numerator: BigNumber, + denominator: BigNumber, + target: BigNumber, + ): Promise<boolean> { + if (denominator.eq(0)) { + throw divisionByZeroErrorForCall; + } + if (numerator.eq(0)) { + return false; + } + if (target.eq(0)) { + return false; + } + const product = numerator.mul(target); + const remainder = product.mod(denominator); + const remainderTimes1000 = remainder.mul('1000'); + const isError = remainderTimes1000.gte(product); + if (product.greaterThan(MAX_UINT256)) { + throw overflowErrorForCall; + } + if (remainderTimes1000.greaterThan(MAX_UINT256)) { + throw overflowErrorForCall; + } + return isError; + } + + async function referenceIsRoundingErrorCeilAsync( + numerator: BigNumber, + denominator: BigNumber, + target: BigNumber, + ): Promise<boolean> { + if (denominator.eq(0)) { + throw divisionByZeroErrorForCall; + } + if (numerator.eq(0)) { + return false; + } + if (target.eq(0)) { + return false; + } + const product = numerator.mul(target); + const remainder = product.mod(denominator); + const error = denominator.sub(remainder).mod(denominator); + const errorTimes1000 = error.mul('1000'); + const isError = errorTimes1000.gte(product); + if (product.greaterThan(MAX_UINT256)) { + throw overflowErrorForCall; + } + if (errorTimes1000.greaterThan(MAX_UINT256)) { + throw overflowErrorForCall; + } + return isError; + } + + async function referenceSafeGetPartialAmountFloorAsync( + numerator: BigNumber, + denominator: BigNumber, + target: BigNumber, + ): Promise<BigNumber> { + if (denominator.eq(0)) { + throw divisionByZeroErrorForCall; + } + const isRoundingError = await referenceIsRoundingErrorFloorAsync(numerator, denominator, target); + if (isRoundingError) { + throw roundingErrorForCall; + } + const product = numerator.mul(target); + if (product.greaterThan(MAX_UINT256)) { + throw overflowErrorForCall; + } + return product.dividedToIntegerBy(denominator); + } + + describe('addFillResults', async () => { + function makeFillResults(value: BigNumber): FillResults { + return { + makerAssetFilledAmount: value, + takerAssetFilledAmount: value, + makerFeePaid: value, + takerFeePaid: value, + }; + } + async function referenceAddFillResultsAsync( + totalValue: BigNumber, + singleValue: BigNumber, + ): Promise<FillResults> { + // Note(albrow): Here, each of totalFillResults and + // singleFillResults will consist of fields with the same values. + // This should be safe because none of the fields in a given + // FillResults are ever used together in a mathemetical operation. + // They are only used with the corresponding field from *the other* + // FillResults, which are different. + const totalFillResults = makeFillResults(totalValue); + const singleFillResults = makeFillResults(singleValue); + // HACK(albrow): _.mergeWith mutates the first argument! To + // workaround this we use _.cloneDeep. + return _.mergeWith( + _.cloneDeep(totalFillResults), + singleFillResults, + (totalVal: BigNumber, singleVal: BigNumber) => { + const newTotal = totalVal.add(singleVal); + if (newTotal.greaterThan(MAX_UINT256)) { + throw overflowErrorForCall; + } + return newTotal; + }, + ); + } + async function testAddFillResultsAsync(totalValue: BigNumber, singleValue: BigNumber): Promise<FillResults> { + const totalFillResults = makeFillResults(totalValue); + const singleFillResults = makeFillResults(singleValue); + return testExchange.publicAddFillResults.callAsync(totalFillResults, singleFillResults); + } + await testCombinatoriallyWithReferenceFuncAsync( + 'addFillResults', + referenceAddFillResultsAsync, + testAddFillResultsAsync, + [uint256Values, uint256Values], + ); + }); + + describe('calculateFillResults', async () => { + function makeOrder( + makerAssetAmount: BigNumber, + takerAssetAmount: BigNumber, + makerFee: BigNumber, + takerFee: BigNumber, + ): Order { + return { + ...emptyOrder, + makerAssetAmount, + takerAssetAmount, + makerFee, + takerFee, + }; + } + async function referenceCalculateFillResultsAsync( + orderTakerAssetAmount: BigNumber, + takerAssetFilledAmount: BigNumber, + otherAmount: BigNumber, + ): Promise<FillResults> { + // Note(albrow): Here we are re-using the same value (otherAmount) + // for order.makerAssetAmount, order.makerFee, and order.takerFee. + // This should be safe because they are never used with each other + // in any mathematical operation in either the reference TypeScript + // implementation or the Solidity implementation of + // calculateFillResults. + const makerAssetFilledAmount = await referenceSafeGetPartialAmountFloorAsync( + takerAssetFilledAmount, + orderTakerAssetAmount, + otherAmount, + ); + const order = makeOrder(otherAmount, orderTakerAssetAmount, otherAmount, otherAmount); + const orderMakerAssetAmount = order.makerAssetAmount; + return { + makerAssetFilledAmount, + takerAssetFilledAmount, + makerFeePaid: await referenceSafeGetPartialAmountFloorAsync( + makerAssetFilledAmount, + orderMakerAssetAmount, + otherAmount, + ), + takerFeePaid: await referenceSafeGetPartialAmountFloorAsync( + takerAssetFilledAmount, + orderTakerAssetAmount, + otherAmount, + ), + }; + } + async function testCalculateFillResultsAsync( + orderTakerAssetAmount: BigNumber, + takerAssetFilledAmount: BigNumber, + otherAmount: BigNumber, + ): Promise<FillResults> { + const order = makeOrder(otherAmount, orderTakerAssetAmount, otherAmount, otherAmount); + return testExchange.publicCalculateFillResults.callAsync(order, takerAssetFilledAmount); + } + await testCombinatoriallyWithReferenceFuncAsync( + 'calculateFillResults', + referenceCalculateFillResultsAsync, + testCalculateFillResultsAsync, + [uint256Values, uint256Values, uint256Values], + ); + }); + + describe('getPartialAmountFloor', async () => { + async function referenceGetPartialAmountFloorAsync( + numerator: BigNumber, + denominator: BigNumber, + target: BigNumber, + ): Promise<BigNumber> { + if (denominator.eq(0)) { + throw divisionByZeroErrorForCall; + } + const product = numerator.mul(target); + if (product.greaterThan(MAX_UINT256)) { + throw overflowErrorForCall; + } + return product.dividedToIntegerBy(denominator); + } + async function testGetPartialAmountFloorAsync( + numerator: BigNumber, + denominator: BigNumber, + target: BigNumber, + ): Promise<BigNumber> { + return testExchange.publicGetPartialAmountFloor.callAsync(numerator, denominator, target); + } + await testCombinatoriallyWithReferenceFuncAsync( + 'getPartialAmountFloor', + referenceGetPartialAmountFloorAsync, + testGetPartialAmountFloorAsync, + [uint256Values, uint256Values, uint256Values], + ); + }); + + describe('getPartialAmountCeil', async () => { + async function referenceGetPartialAmountCeilAsync( + numerator: BigNumber, + denominator: BigNumber, + target: BigNumber, + ): Promise<BigNumber> { + if (denominator.eq(0)) { + throw divisionByZeroErrorForCall; + } + const product = numerator.mul(target); + const offset = product.add(denominator.sub(1)); + if (offset.greaterThan(MAX_UINT256)) { + throw overflowErrorForCall; + } + const result = offset.dividedToIntegerBy(denominator); + if (product.mod(denominator).eq(0)) { + expect(result.mul(denominator)).to.be.bignumber.eq(product); + } else { + expect(result.mul(denominator)).to.be.bignumber.gt(product); + } + return result; + } + async function testGetPartialAmountCeilAsync( + numerator: BigNumber, + denominator: BigNumber, + target: BigNumber, + ): Promise<BigNumber> { + return testExchange.publicGetPartialAmountCeil.callAsync(numerator, denominator, target); + } + await testCombinatoriallyWithReferenceFuncAsync( + 'getPartialAmountCeil', + referenceGetPartialAmountCeilAsync, + testGetPartialAmountCeilAsync, + [uint256Values, uint256Values, uint256Values], + ); + }); + + describe('safeGetPartialAmountFloor', async () => { + async function testSafeGetPartialAmountFloorAsync( + numerator: BigNumber, + denominator: BigNumber, + target: BigNumber, + ): Promise<BigNumber> { + return testExchange.publicSafeGetPartialAmountFloor.callAsync(numerator, denominator, target); + } + await testCombinatoriallyWithReferenceFuncAsync( + 'safeGetPartialAmountFloor', + referenceSafeGetPartialAmountFloorAsync, + testSafeGetPartialAmountFloorAsync, + [uint256Values, uint256Values, uint256Values], + ); + }); + + describe('safeGetPartialAmountCeil', async () => { + async function referenceSafeGetPartialAmountCeilAsync( + numerator: BigNumber, + denominator: BigNumber, + target: BigNumber, + ): Promise<BigNumber> { + if (denominator.eq(0)) { + throw divisionByZeroErrorForCall; + } + const isRoundingError = await referenceIsRoundingErrorCeilAsync(numerator, denominator, target); + if (isRoundingError) { + throw roundingErrorForCall; + } + const product = numerator.mul(target); + const offset = product.add(denominator.sub(1)); + if (offset.greaterThan(MAX_UINT256)) { + throw overflowErrorForCall; + } + const result = offset.dividedToIntegerBy(denominator); + if (product.mod(denominator).eq(0)) { + expect(result.mul(denominator)).to.be.bignumber.eq(product); + } else { + expect(result.mul(denominator)).to.be.bignumber.gt(product); + } + return result; + } + async function testSafeGetPartialAmountCeilAsync( + numerator: BigNumber, + denominator: BigNumber, + target: BigNumber, + ): Promise<BigNumber> { + return testExchange.publicSafeGetPartialAmountCeil.callAsync(numerator, denominator, target); + } + await testCombinatoriallyWithReferenceFuncAsync( + 'safeGetPartialAmountCeil', + referenceSafeGetPartialAmountCeilAsync, + testSafeGetPartialAmountCeilAsync, + [uint256Values, uint256Values, uint256Values], + ); + }); + + describe('isRoundingErrorFloor', async () => { + async function testIsRoundingErrorFloorAsync( + numerator: BigNumber, + denominator: BigNumber, + target: BigNumber, + ): Promise<boolean> { + return testExchange.publicIsRoundingErrorFloor.callAsync(numerator, denominator, target); + } + await testCombinatoriallyWithReferenceFuncAsync( + 'isRoundingErrorFloor', + referenceIsRoundingErrorFloorAsync, + testIsRoundingErrorFloorAsync, + [uint256Values, uint256Values, uint256Values], + ); + }); + + describe('isRoundingErrorCeil', async () => { + async function testIsRoundingErrorCeilAsync( + numerator: BigNumber, + denominator: BigNumber, + target: BigNumber, + ): Promise<boolean> { + return testExchange.publicIsRoundingErrorCeil.callAsync(numerator, denominator, target); + } + await testCombinatoriallyWithReferenceFuncAsync( + 'isRoundingErrorCeil', + referenceIsRoundingErrorCeilAsync, + testIsRoundingErrorCeilAsync, + [uint256Values, uint256Values, uint256Values], + ); + }); + + describe('updateFilledState', async () => { + // Note(albrow): Since updateFilledState modifies the state by calling + // sendTransaction, we must reset the state after each test. + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + async function referenceUpdateFilledStateAsync( + takerAssetFilledAmount: BigNumber, + orderTakerAssetFilledAmount: BigNumber, + // tslint:disable-next-line:no-unused-variable + orderHash: string, + ): Promise<BigNumber> { + const totalFilledAmount = takerAssetFilledAmount.add(orderTakerAssetFilledAmount); + if (totalFilledAmount.greaterThan(MAX_UINT256)) { + throw overflowErrorForSendTransaction; + } + return totalFilledAmount; + } + async function testUpdateFilledStateAsync( + takerAssetFilledAmount: BigNumber, + orderTakerAssetFilledAmount: BigNumber, + orderHash: string, + ): Promise<BigNumber> { + const fillResults = { + makerAssetFilledAmount: new BigNumber(0), + takerAssetFilledAmount, + makerFeePaid: new BigNumber(0), + takerFeePaid: new BigNumber(0), + }; + await web3Wrapper.awaitTransactionSuccessAsync( + await testExchange.publicUpdateFilledState.sendTransactionAsync( + emptySignedOrder, + constants.NULL_ADDRESS, + orderHash, + orderTakerAssetFilledAmount, + fillResults, + ), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + return testExchange.filled.callAsync(orderHash); + } + await testCombinatoriallyWithReferenceFuncAsync( + 'updateFilledState', + referenceUpdateFilledStateAsync, + testUpdateFilledStateAsync, + [uint256Values, uint256Values, bytes32Values], + ); + }); +}); diff --git a/contracts/core/test/exchange/match_orders.ts b/contracts/core/test/exchange/match_orders.ts new file mode 100644 index 000000000..0e841b359 --- /dev/null +++ b/contracts/core/test/exchange/match_orders.ts @@ -0,0 +1,1281 @@ +import { + chaiSetup, + constants, + ERC20BalancesByOwner, + ERC721TokenIdsByOwner, + expectTransactionFailedAsync, + OrderFactory, + provider, + txDefaults, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { assetDataUtils } from '@0x/order-utils'; +import { RevertReason } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; +import * as chai from 'chai'; +import * as _ from 'lodash'; + +import { DummyERC20TokenContract } from '../../generated-wrappers/dummy_erc20_token'; +import { DummyERC721TokenContract } from '../../generated-wrappers/dummy_erc721_token'; +import { ERC20ProxyContract } from '../../generated-wrappers/erc20_proxy'; +import { ERC721ProxyContract } from '../../generated-wrappers/erc721_proxy'; +import { ExchangeContract } from '../../generated-wrappers/exchange'; +import { ReentrantERC20TokenContract } from '../../generated-wrappers/reentrant_erc20_token'; +import { TestExchangeInternalsContract } from '../../generated-wrappers/test_exchange_internals'; +import { artifacts } from '../../src/artifacts'; +import { ERC20Wrapper } from '../utils/erc20_wrapper'; +import { ERC721Wrapper } from '../utils/erc721_wrapper'; +import { ExchangeWrapper } from '../utils/exchange_wrapper'; +import { MatchOrderTester } from '../utils/match_order_tester'; + +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); +chaiSetup.configure(); +const expect = chai.expect; + +describe('matchOrders', () => { + let makerAddressLeft: string; + let makerAddressRight: string; + let owner: string; + let takerAddress: string; + let feeRecipientAddressLeft: string; + let feeRecipientAddressRight: string; + + let erc20TokenA: DummyERC20TokenContract; + let erc20TokenB: DummyERC20TokenContract; + let zrxToken: DummyERC20TokenContract; + let erc721Token: DummyERC721TokenContract; + let reentrantErc20Token: ReentrantERC20TokenContract; + let exchange: ExchangeContract; + let erc20Proxy: ERC20ProxyContract; + let erc721Proxy: ERC721ProxyContract; + + let erc20BalancesByOwner: ERC20BalancesByOwner; + let erc721TokenIdsByOwner: ERC721TokenIdsByOwner; + let exchangeWrapper: ExchangeWrapper; + let erc20Wrapper: ERC20Wrapper; + let erc721Wrapper: ERC721Wrapper; + let orderFactoryLeft: OrderFactory; + let orderFactoryRight: OrderFactory; + + let erc721LeftMakerAssetIds: BigNumber[]; + let erc721RightMakerAssetIds: BigNumber[]; + + let defaultERC20MakerAssetAddress: string; + let defaultERC20TakerAssetAddress: string; + let defaultERC721AssetAddress: string; + + let matchOrderTester: MatchOrderTester; + + let testExchange: TestExchangeInternalsContract; + + before(async () => { + await blockchainLifecycle.startAsync(); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + before(async () => { + // Create accounts + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + // Hack(albrow): Both Prettier and TSLint insert a trailing comma below + // but that is invalid syntax as of TypeScript version >= 2.8. We don't + // have the right fine-grained configuration options in TSLint, + // Prettier, or TypeScript, to reconcile this, so we will just have to + // wait for them to sort it out. We disable TSLint and Prettier for + // this part of the code for now. This occurs several times in this + // file. See https://github.com/prettier/prettier/issues/4624. + // prettier-ignore + const usedAddresses = ([ + owner, + makerAddressLeft, + makerAddressRight, + takerAddress, + feeRecipientAddressLeft, + // tslint:disable-next-line:trailing-comma + feeRecipientAddressRight + ] = _.slice(accounts, 0, 6)); + // Create wrappers + erc20Wrapper = new ERC20Wrapper(provider, usedAddresses, owner); + erc721Wrapper = new ERC721Wrapper(provider, usedAddresses, owner); + // Deploy ERC20 token & ERC20 proxy + const numDummyErc20ToDeploy = 3; + [erc20TokenA, erc20TokenB, zrxToken] = await erc20Wrapper.deployDummyTokensAsync( + numDummyErc20ToDeploy, + constants.DUMMY_TOKEN_DECIMALS, + ); + erc20Proxy = await erc20Wrapper.deployProxyAsync(); + await erc20Wrapper.setBalancesAndAllowancesAsync(); + // Deploy ERC721 token and proxy + [erc721Token] = await erc721Wrapper.deployDummyTokensAsync(); + erc721Proxy = await erc721Wrapper.deployProxyAsync(); + await erc721Wrapper.setBalancesAndAllowancesAsync(); + const erc721Balances = await erc721Wrapper.getBalancesAsync(); + erc721LeftMakerAssetIds = erc721Balances[makerAddressLeft][erc721Token.address]; + erc721RightMakerAssetIds = erc721Balances[makerAddressRight][erc721Token.address]; + // Depoy exchange + exchange = await ExchangeContract.deployFrom0xArtifactAsync( + artifacts.Exchange, + provider, + txDefaults, + assetDataUtils.encodeERC20AssetData(zrxToken.address), + ); + exchangeWrapper = new ExchangeWrapper(exchange, provider); + await exchangeWrapper.registerAssetProxyAsync(erc20Proxy.address, owner); + await exchangeWrapper.registerAssetProxyAsync(erc721Proxy.address, owner); + // Authorize ERC20 and ERC721 trades by exchange + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Proxy.addAuthorizedAddress.sendTransactionAsync(exchange.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Proxy.addAuthorizedAddress.sendTransactionAsync(exchange.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + reentrantErc20Token = await ReentrantERC20TokenContract.deployFrom0xArtifactAsync( + artifacts.ReentrantERC20Token, + provider, + txDefaults, + exchange.address, + ); + + // Set default addresses + defaultERC20MakerAssetAddress = erc20TokenA.address; + defaultERC20TakerAssetAddress = erc20TokenB.address; + defaultERC721AssetAddress = erc721Token.address; + // Create default order parameters + const defaultOrderParamsLeft = { + ...constants.STATIC_ORDER_PARAMS, + makerAddress: makerAddressLeft, + exchangeAddress: exchange.address, + makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress), + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress), + feeRecipientAddress: feeRecipientAddressLeft, + }; + const defaultOrderParamsRight = { + ...constants.STATIC_ORDER_PARAMS, + makerAddress: makerAddressRight, + exchangeAddress: exchange.address, + makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress), + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress), + feeRecipientAddress: feeRecipientAddressRight, + }; + const privateKeyLeft = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(makerAddressLeft)]; + orderFactoryLeft = new OrderFactory(privateKeyLeft, defaultOrderParamsLeft); + const privateKeyRight = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(makerAddressRight)]; + orderFactoryRight = new OrderFactory(privateKeyRight, defaultOrderParamsRight); + // Set match order tester + matchOrderTester = new MatchOrderTester(exchangeWrapper, erc20Wrapper, erc721Wrapper, zrxToken.address); + testExchange = await TestExchangeInternalsContract.deployFrom0xArtifactAsync( + artifacts.TestExchangeInternals, + provider, + txDefaults, + ); + }); + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + describe('matchOrders', () => { + beforeEach(async () => { + erc20BalancesByOwner = await erc20Wrapper.getBalancesAsync(); + erc721TokenIdsByOwner = await erc721Wrapper.getBalancesAsync(); + }); + + it('Should transfer correct amounts when right order is fully filled and values pass isRoundingErrorFloor but fail isRoundingErrorCeil', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAddress: makerAddressLeft, + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(17), 0), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(98), 0), + feeRecipientAddress: feeRecipientAddressLeft, + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAddress: makerAddressRight, + makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress), + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(75), 0), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(13), 0), + feeRecipientAddress: feeRecipientAddressRight, + }); + // Assert is rounding error ceil & not rounding error floor + // These assertions are taken from MixinMatchOrders::calculateMatchedFillResults + // The rounding error is derived computating how much the left maker will sell. + const numerator = signedOrderLeft.makerAssetAmount; + const denominator = signedOrderLeft.takerAssetAmount; + const target = signedOrderRight.makerAssetAmount; + const isRoundingErrorCeil = await testExchange.publicIsRoundingErrorCeil.callAsync( + numerator, + denominator, + target, + ); + expect(isRoundingErrorCeil).to.be.true(); + const isRoundingErrorFloor = await testExchange.publicIsRoundingErrorFloor.callAsync( + numerator, + denominator, + target, + ); + expect(isRoundingErrorFloor).to.be.false(); + // Match signedOrderLeft with signedOrderRight + // Note that the left maker received a slightly better sell price. + // This is intentional; see note in MixinMatchOrders.calculateMatchedFillResults. + // Because the left maker received a slightly more favorable sell price, the fee + // paid by the left taker is slightly higher than that paid by the left maker. + // Fees can be thought of as a tax paid by the seller, derived from the sale price. + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(13), 0), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(75), 0), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber('76.4705882352941176'), 16), // 76.47% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(75), 0), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(13), 0), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(0), 0), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber('76.5306122448979591'), 16), // 76.53% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + }; + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + it('Should transfer correct amounts when left order is fully filled and values pass isRoundingErrorCeil but fail isRoundingErrorFloor', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAddress: makerAddressLeft, + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(15), 0), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(90), 0), + feeRecipientAddress: feeRecipientAddressLeft, + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAddress: makerAddressRight, + makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress), + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(97), 0), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(14), 0), + feeRecipientAddress: feeRecipientAddressRight, + }); + // Assert is rounding error floor & not rounding error ceil + // These assertions are taken from MixinMatchOrders::calculateMatchedFillResults + // The rounding error is derived computating how much the right maker will buy. + const numerator = signedOrderRight.takerAssetAmount; + const denominator = signedOrderRight.makerAssetAmount; + const target = signedOrderLeft.takerAssetAmount; + const isRoundingErrorFloor = await testExchange.publicIsRoundingErrorFloor.callAsync( + numerator, + denominator, + target, + ); + expect(isRoundingErrorFloor).to.be.true(); + const isRoundingErrorCeil = await testExchange.publicIsRoundingErrorCeil.callAsync( + numerator, + denominator, + target, + ); + expect(isRoundingErrorCeil).to.be.false(); + // Match signedOrderLeft with signedOrderRight + // Note that the right maker received a slightly better purchase price. + // This is intentional; see note in MixinMatchOrders.calculateMatchedFillResults. + // Because the right maker received a slightly more favorable buy price, the fee + // paid by the right taker is slightly higher than that paid by the right maker. + // Fees can be thought of as a tax paid by the seller, derived from the sale price. + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(15), 0), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(90), 0), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(90), 0), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(13), 0), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber('92.7835051546391752'), 16), // 92.78% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 0), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber('92.8571428571428571'), 16), // 92.85% + }; + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + it('Should give right maker a better buy price when rounding', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAddress: makerAddressLeft, + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(16), 0), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(22), 0), + feeRecipientAddress: feeRecipientAddressLeft, + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAddress: makerAddressRight, + makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress), + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(83), 0), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(49), 0), + feeRecipientAddress: feeRecipientAddressRight, + }); + // Note: + // The correct price buy price for the right maker would yield (49/83) * 22 = 12.988 units + // of the left maker asset. This gets rounded up to 13, giving the right maker a better price. + // Note: + // The maker/taker fee percentage paid on the right order differs because + // they received different sale prices. The right maker pays a + // fee slightly lower than the right taker. + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(16), 0), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(22), 0), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(22), 0), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(13), 0), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber('26.5060240963855421'), 16), // 26.506% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(3), 0), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber('26.5306122448979591'), 16), // 26.531% + }; + // Match signedOrderLeft with signedOrderRight + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + it('Should give left maker a better sell price when rounding', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAddress: makerAddressLeft, + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(12), 0), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(97), 0), + feeRecipientAddress: feeRecipientAddressLeft, + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAddress: makerAddressRight, + makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress), + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(89), 0), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), 0), + feeRecipientAddress: feeRecipientAddressRight, + }); + // Note: + // The maker/taker fee percentage paid on the left order differs because + // they received different sale prices. The left maker pays a fee + // slightly lower than the left taker. + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(11), 0), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(89), 0), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber('91.6666666666666666'), 16), // 91.6% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(89), 0), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), 0), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 0), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber('91.7525773195876288'), 16), // 91.75% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + }; + // Match signedOrderLeft with signedOrderRight + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + it('Should give right maker and right taker a favorable fee price when rounding', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAddress: makerAddressLeft, + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(16), 0), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(22), 0), + feeRecipientAddress: feeRecipientAddressLeft, + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAddress: makerAddressRight, + makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress), + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(83), 0), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(49), 0), + feeRecipientAddress: feeRecipientAddressRight, + makerFee: Web3Wrapper.toBaseUnitAmount(new BigNumber(10000), 0), + takerFee: Web3Wrapper.toBaseUnitAmount(new BigNumber(10000), 0), + }); + // Note: + // The maker/taker fee percentage paid on the right order differs because + // they received different sale prices. The right maker pays a + // fee slightly lower than the right taker. + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(16), 0), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(22), 0), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(22), 0), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(13), 0), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(2650), 0), // 2650.6 rounded down tro 2650 + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(3), 0), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(2653), 0), // 2653.1 rounded down to 2653 + }; + // Match signedOrderLeft with signedOrderRight + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + it('Should give left maker and left taker a favorable fee price when rounding', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAddress: makerAddressLeft, + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(12), 0), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(97), 0), + feeRecipientAddress: feeRecipientAddressLeft, + makerFee: Web3Wrapper.toBaseUnitAmount(new BigNumber(10000), 0), + takerFee: Web3Wrapper.toBaseUnitAmount(new BigNumber(10000), 0), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAddress: makerAddressRight, + makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress), + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(89), 0), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), 0), + feeRecipientAddress: feeRecipientAddressRight, + }); + // Note: + // The maker/taker fee percentage paid on the left order differs because + // they received different sale prices. The left maker pays a + // fee slightly lower than the left taker. + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(11), 0), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(89), 0), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(9166), 0), // 9166.6 rounded down to 9166 + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(89), 0), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), 0), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 0), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(9175), 0), // 9175.2 rounded down to 9175 + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + }; + // Match signedOrderLeft with signedOrderRight + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + it('Should transfer correct amounts when right order fill amount deviates from amount derived by `Exchange.fillOrder`', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAddress: makerAddressLeft, + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(1000), 0), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(1005), 0), + feeRecipientAddress: feeRecipientAddressLeft, + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAddress: makerAddressRight, + makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress), + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2126), 0), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(1063), 0), + feeRecipientAddress: feeRecipientAddressRight, + }); + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(1000), 0), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(1005), 0), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Right Maker + // Notes: + // i. + // The left order is fully filled by the right order, so the right maker must sell 1005 units of their asset to the left maker. + // By selling 1005 units, the right maker should theoretically receive 502.5 units of the left maker's asset. + // Since the transfer amount must be an integer, this value must be rounded down to 502 or up to 503. + // ii. + // If the right order were filled via `Exchange.fillOrder` the respective fill amounts would be [1004, 502] or [1006, 503]. + // It follows that we cannot trigger a sale of 1005 units of the right maker's asset through `Exchange.fillOrder`. + // iii. + // For an optimal match, the algorithm must choose either [1005, 502] or [1005, 503] as fill amounts for the right order. + // The algorithm favors the right maker when the exchange rate must be rounded, so the final fill for the right order is [1005, 503]. + // iv. + // The right maker fee differs from the right taker fee because their exchange rate differs. + // The right maker always receives the better exchange and fee price. + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(1005), 0), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(503), 0), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber('47.2718720602069614'), 16), // 47.27% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(497), 0), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber('47.3189087488240827'), 16), // 47.31% + }; + // Match signedOrderLeft with signedOrderRight + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + const reentrancyTest = (functionNames: string[]) => { + _.forEach(functionNames, async (functionName: string, functionId: number) => { + const description = `should not allow matchOrders to reenter the Exchange contract via ${functionName}`; + it(description, async () => { + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(reentrantErc20Token.address), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAddress: makerAddressRight, + takerAssetData: assetDataUtils.encodeERC20AssetData(reentrantErc20Token.address), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + feeRecipientAddress: feeRecipientAddressRight, + }); + await web3Wrapper.awaitTransactionSuccessAsync( + await reentrantErc20Token.setCurrentFunction.sendTransactionAsync(functionId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await expectTransactionFailedAsync( + exchangeWrapper.matchOrdersAsync(signedOrderLeft, signedOrderRight, takerAddress), + RevertReason.TransferFailed, + ); + }); + }); + }; + describe('matchOrders reentrancy tests', () => reentrancyTest(constants.FUNCTIONS_WITH_MUTEX)); + + it('should transfer the correct amounts when orders completely fill each other', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + }); + // Match signedOrderLeft with signedOrderRight + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(3), 18), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + }; + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + it('should transfer the correct amounts when orders completely fill each other and taker doesnt take a profit', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + }); + // Match signedOrderLeft with signedOrderRight + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(0), 18), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + }; + // Match signedOrderLeft with signedOrderRight + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + it('should transfer the correct amounts when left order is completely filled and right order is partially filled', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(20), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(4), 18), + }); + // Match signedOrderLeft with signedOrderRight + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), 16), // 50% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(3), 18), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), 16), // 50% + }; + // Match signedOrderLeft with signedOrderRight + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + it('should transfer the correct amounts when right order is completely filled and left order is partially filled', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + }); + // Match signedOrderLeft with signedOrderRight + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 16), // 10% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(3), 18), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 16), // 10% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + }; + // Match signedOrderLeft with signedOrderRight + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + it('should transfer the correct amounts when consecutive calls are used to completely fill the left order', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + }); + // Match orders + let newERC20BalancesByOwner: ERC20BalancesByOwner; + let newERC721TokenIdsByOwner: ERC721TokenIdsByOwner; + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 16), // 10% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(3), 18), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 16), // 10% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + }; + // prettier-ignore + [ + newERC20BalancesByOwner, + // tslint:disable-next-line:trailing-comma + newERC721TokenIdsByOwner + ] = await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + // Construct second right order + // Note: This order needs makerAssetAmount=90/takerAssetAmount=[anything <= 45] to fully fill the right order. + // However, we use 100/50 to ensure a partial fill as we want to go down the "left fill" + // branch in the contract twice for this test. + const signedOrderRight2 = await orderFactoryRight.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), 18), + }); + // Match signedOrderLeft with signedOrderRight2 + const leftTakerAssetFilledAmount = signedOrderRight.makerAssetAmount; + const rightTakerAssetFilledAmount = new BigNumber(0); + const expectedTransferAmounts2 = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(45), 18), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(90), 18), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(90), 16), // 90% (10% paid earlier) + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(90), 18), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(45), 18), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(90), 16), // 90% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(0), 18), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(90), 16), // 90% (10% paid earlier) + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(90), 16), // 90% + }; + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight2, + takerAddress, + newERC20BalancesByOwner, + newERC721TokenIdsByOwner, + expectedTransferAmounts2, + leftTakerAssetFilledAmount, + rightTakerAssetFilledAmount, + ); + }); + + it('should transfer the correct amounts when consecutive calls are used to completely fill the right order', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + }); + + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), + }); + // Match orders + let newERC20BalancesByOwner: ERC20BalancesByOwner; + let newERC721TokenIdsByOwner: ERC721TokenIdsByOwner; + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(4), 18), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(4), 16), // 4% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(6), 18), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(4), 16), // 4% + }; + // prettier-ignore + [ + newERC20BalancesByOwner, + // tslint:disable-next-line:trailing-comma + newERC721TokenIdsByOwner + ] = await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + + // Create second left order + // Note: This order needs makerAssetAmount=96/takerAssetAmount=48 to fully fill the right order. + // However, we use 100/50 to ensure a partial fill as we want to go down the "right fill" + // branch in the contract twice for this test. + const signedOrderLeft2 = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), 18), + }); + // Match signedOrderLeft2 with signedOrderRight + const leftTakerAssetFilledAmount = new BigNumber(0); + const takerAmountReceived = newERC20BalancesByOwner[takerAddress][defaultERC20MakerAssetAddress].minus( + erc20BalancesByOwner[takerAddress][defaultERC20MakerAssetAddress], + ); + const rightTakerAssetFilledAmount = signedOrderLeft.makerAssetAmount.minus(takerAmountReceived); + const expectedTransferAmounts2 = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(96), 18), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(48), 18), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(96), 16), // 96% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(48), 18), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(96), 18), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(96), 16), // 96% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(0), 18), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(96), 16), // 96% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(96), 16), // 96% + }; + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft2, + signedOrderRight, + takerAddress, + newERC20BalancesByOwner, + newERC721TokenIdsByOwner, + expectedTransferAmounts2, + leftTakerAssetFilledAmount, + rightTakerAssetFilledAmount, + ); + }); + + it('should transfer the correct amounts if fee recipient is the same across both matched orders', async () => { + const feeRecipientAddress = feeRecipientAddressLeft; + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + feeRecipientAddress, + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + feeRecipientAddress, + }); + // Match orders + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(3), 18), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + }; + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + it('should transfer the correct amounts if taker is also the left order maker', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + }); + // Match orders + takerAddress = signedOrderLeft.makerAddress; + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(3), 18), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + }; + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + it('should transfer the correct amounts if taker is also the right order maker', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + }); + // Match orders + takerAddress = signedOrderRight.makerAddress; + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(3), 18), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + }; + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + it('should transfer the correct amounts if taker is also the left fee recipient', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + }); + // Match orders + takerAddress = feeRecipientAddressLeft; + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(3), 18), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + }; + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + it('should transfer the correct amounts if taker is also the right fee recipient', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + }); + // Match orders + takerAddress = feeRecipientAddressRight; + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(3), 18), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + }; + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + it('should transfer the correct amounts if left maker is the left fee recipient and right maker is the right fee recipient', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + }); + // Match orders + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(3), 18), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + }; + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + it('Should throw if left order is not fillable', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + }); + // Cancel left order + await exchangeWrapper.cancelOrderAsync(signedOrderLeft, signedOrderLeft.makerAddress); + // Match orders + return expectTransactionFailedAsync( + exchangeWrapper.matchOrdersAsync(signedOrderLeft, signedOrderRight, takerAddress), + RevertReason.OrderUnfillable, + ); + }); + + it('Should throw if right order is not fillable', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + }); + // Cancel right order + await exchangeWrapper.cancelOrderAsync(signedOrderRight, signedOrderRight.makerAddress); + // Match orders + return expectTransactionFailedAsync( + exchangeWrapper.matchOrdersAsync(signedOrderLeft, signedOrderRight, takerAddress), + RevertReason.OrderUnfillable, + ); + }); + + it('should throw if there is not a positive spread', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(200), 18), + }); + // Match orders + return expectTransactionFailedAsync( + exchangeWrapper.matchOrdersAsync(signedOrderLeft, signedOrderRight, takerAddress), + RevertReason.NegativeSpreadRequired, + ); + }); + + it('should throw if the left maker asset is not equal to the right taker asset ', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + }); + // Match orders + return expectTransactionFailedAsync( + exchangeWrapper.matchOrdersAsync(signedOrderLeft, signedOrderRight, takerAddress), + // We are assuming assetData fields of the right order are the + // reverse of the left order, rather than checking equality. This + // saves a bunch of gas, but as a result if the assetData fields are + // off then the failure ends up happening at signature validation + RevertReason.InvalidOrderSignature, + ); + }); + + it('should throw if the right maker asset is not equal to the left taker asset', async () => { + // Create orders to match + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + }); + // Match orders + return expectTransactionFailedAsync( + exchangeWrapper.matchOrdersAsync(signedOrderLeft, signedOrderRight, takerAddress), + RevertReason.InvalidOrderSignature, + ); + }); + + it('should transfer correct amounts when left order maker asset is an ERC721 token', async () => { + // Create orders to match + const erc721TokenToTransfer = erc721LeftMakerAssetIds[0]; + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC721AssetData(defaultERC721AssetAddress, erc721TokenToTransfer), + makerAssetAmount: new BigNumber(1), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + takerAssetData: assetDataUtils.encodeERC721AssetData(defaultERC721AssetAddress, erc721TokenToTransfer), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: new BigNumber(1), + }); + // Match orders + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), 0), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), 0), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(0), 18), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 50% + }; + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + + it('should transfer correct amounts when right order maker asset is an ERC721 token', async () => { + // Create orders to match + const erc721TokenToTransfer = erc721RightMakerAssetIds[0]; + const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({ + takerAssetData: assetDataUtils.encodeERC721AssetData(defaultERC721AssetAddress, erc721TokenToTransfer), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + takerAssetAmount: new BigNumber(1), + }); + const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC721AssetData(defaultERC721AssetAddress, erc721TokenToTransfer), + makerAssetAmount: new BigNumber(1), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(8), 18), + }); + // Match orders + const expectedTransferAmounts = { + // Left Maker + amountSoldByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), + amountBoughtByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), 0), + feePaidByLeftMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Right Maker + amountSoldByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), 0), + amountBoughtByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(8), 18), + feePaidByRightMaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + // Taker + amountReceivedByTaker: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18), + feePaidByTakerLeft: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + feePaidByTakerRight: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 16), // 100% + }; + await matchOrderTester.matchOrdersAndAssertEffectsAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + expectedTransferAmounts, + ); + }); + }); +}); // tslint:disable-line:max-file-line-count diff --git a/contracts/core/test/exchange/signature_validator.ts b/contracts/core/test/exchange/signature_validator.ts new file mode 100644 index 000000000..b84a488a1 --- /dev/null +++ b/contracts/core/test/exchange/signature_validator.ts @@ -0,0 +1,526 @@ +import { + addressUtils, + chaiSetup, + constants, + expectContractCallFailedAsync, + LogDecoder, + OrderFactory, + provider, + txDefaults, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { assetDataUtils, orderHashUtils, signatureUtils } from '@0x/order-utils'; +import { RevertReason, SignatureType, SignedOrder } from '@0x/types'; +import * as chai from 'chai'; +import { LogWithDecodedArgs } from 'ethereum-types'; +import ethUtil = require('ethereumjs-util'); + +import { + TestSignatureValidatorContract, + TestSignatureValidatorSignatureValidatorApprovalEventArgs, +} from '../../generated-wrappers/test_signature_validator'; +import { TestStaticCallReceiverContract } from '../../generated-wrappers/test_static_call_receiver'; +import { ValidatorContract } from '../../generated-wrappers/validator'; +import { WalletContract } from '../../generated-wrappers/wallet'; +import { artifacts } from '../../src/artifacts'; + +chaiSetup.configure(); +const expect = chai.expect; + +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); +// tslint:disable:no-unnecessary-type-assertion +describe('MixinSignatureValidator', () => { + let signedOrder: SignedOrder; + let orderFactory: OrderFactory; + let signatureValidator: TestSignatureValidatorContract; + let testWallet: WalletContract; + let testValidator: ValidatorContract; + let maliciousWallet: TestStaticCallReceiverContract; + let maliciousValidator: TestStaticCallReceiverContract; + let signerAddress: string; + let signerPrivateKey: Buffer; + let notSignerAddress: string; + let notSignerPrivateKey: Buffer; + let signatureValidatorLogDecoder: LogDecoder; + + before(async () => { + await blockchainLifecycle.startAsync(); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + before(async () => { + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + const makerAddress = accounts[0]; + signerAddress = makerAddress; + notSignerAddress = accounts[1]; + signatureValidator = await TestSignatureValidatorContract.deployFrom0xArtifactAsync( + artifacts.TestSignatureValidator, + provider, + txDefaults, + ); + testWallet = await WalletContract.deployFrom0xArtifactAsync( + artifacts.Wallet, + provider, + txDefaults, + signerAddress, + ); + testValidator = await ValidatorContract.deployFrom0xArtifactAsync( + artifacts.Validator, + provider, + txDefaults, + signerAddress, + ); + maliciousWallet = maliciousValidator = await TestStaticCallReceiverContract.deployFrom0xArtifactAsync( + artifacts.TestStaticCallReceiver, + provider, + txDefaults, + ); + signatureValidatorLogDecoder = new LogDecoder(web3Wrapper, artifacts); + await web3Wrapper.awaitTransactionSuccessAsync( + await signatureValidator.setSignatureValidatorApproval.sendTransactionAsync(testValidator.address, true, { + from: signerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await signatureValidator.setSignatureValidatorApproval.sendTransactionAsync( + maliciousValidator.address, + true, + { + from: signerAddress, + }, + ), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const defaultOrderParams = { + ...constants.STATIC_ORDER_PARAMS, + exchangeAddress: signatureValidator.address, + makerAddress, + feeRecipientAddress: addressUtils.generatePseudoRandomAddress(), + makerAssetData: assetDataUtils.encodeERC20AssetData(addressUtils.generatePseudoRandomAddress()), + takerAssetData: assetDataUtils.encodeERC20AssetData(addressUtils.generatePseudoRandomAddress()), + }; + signerPrivateKey = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(makerAddress)]; + notSignerPrivateKey = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(notSignerAddress)]; + orderFactory = new OrderFactory(signerPrivateKey, defaultOrderParams); + }); + + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + + describe('isValidSignature', () => { + beforeEach(async () => { + signedOrder = await orderFactory.newSignedOrderAsync(); + }); + + it('should revert when signature is empty', async () => { + const emptySignature = '0x'; + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + return expectContractCallFailedAsync( + signatureValidator.publicIsValidSignature.callAsync( + orderHashHex, + signedOrder.makerAddress, + emptySignature, + ), + RevertReason.LengthGreaterThan0Required, + ); + }); + + it('should revert when signature type is unsupported', async () => { + const unsupportedSignatureType = SignatureType.NSignatureTypes; + const unsupportedSignatureHex = '0x' + Buffer.from([unsupportedSignatureType]).toString('hex'); + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + return expectContractCallFailedAsync( + signatureValidator.publicIsValidSignature.callAsync( + orderHashHex, + signedOrder.makerAddress, + unsupportedSignatureHex, + ), + RevertReason.SignatureUnsupported, + ); + }); + + it('should revert when SignatureType=Illegal', async () => { + const unsupportedSignatureHex = '0x' + Buffer.from([SignatureType.Illegal]).toString('hex'); + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + return expectContractCallFailedAsync( + signatureValidator.publicIsValidSignature.callAsync( + orderHashHex, + signedOrder.makerAddress, + unsupportedSignatureHex, + ), + RevertReason.SignatureIllegal, + ); + }); + + it('should return false when SignatureType=Invalid and signature has a length of zero', async () => { + const signatureHex = '0x' + Buffer.from([SignatureType.Invalid]).toString('hex'); + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + const isValidSignature = await signatureValidator.publicIsValidSignature.callAsync( + orderHashHex, + signedOrder.makerAddress, + signatureHex, + ); + expect(isValidSignature).to.be.false(); + }); + + it('should revert when SignatureType=Invalid and signature length is non-zero', async () => { + const fillerData = ethUtil.toBuffer('0xdeadbeef'); + const signatureType = ethUtil.toBuffer(`0x${SignatureType.Invalid}`); + const signatureBuffer = Buffer.concat([fillerData, signatureType]); + const signatureHex = ethUtil.bufferToHex(signatureBuffer); + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + return expectContractCallFailedAsync( + signatureValidator.publicIsValidSignature.callAsync( + orderHashHex, + signedOrder.makerAddress, + signatureHex, + ), + RevertReason.Length0Required, + ); + }); + + it('should return true when SignatureType=EIP712 and signature is valid', async () => { + // Create EIP712 signature + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + const orderHashBuffer = ethUtil.toBuffer(orderHashHex); + const ecSignature = ethUtil.ecsign(orderHashBuffer, signerPrivateKey); + // Create 0x signature from EIP712 signature + const signature = Buffer.concat([ + ethUtil.toBuffer(ecSignature.v), + ecSignature.r, + ecSignature.s, + ethUtil.toBuffer(`0x${SignatureType.EIP712}`), + ]); + const signatureHex = ethUtil.bufferToHex(signature); + // Validate signature + const isValidSignature = await signatureValidator.publicIsValidSignature.callAsync( + orderHashHex, + signerAddress, + signatureHex, + ); + expect(isValidSignature).to.be.true(); + }); + + it('should return false when SignatureType=EIP712 and signature is invalid', async () => { + // Create EIP712 signature + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + const orderHashBuffer = ethUtil.toBuffer(orderHashHex); + const ecSignature = ethUtil.ecsign(orderHashBuffer, signerPrivateKey); + // Create 0x signature from EIP712 signature + const signature = Buffer.concat([ + ethUtil.toBuffer(ecSignature.v), + ecSignature.r, + ecSignature.s, + ethUtil.toBuffer(`0x${SignatureType.EIP712}`), + ]); + const signatureHex = ethUtil.bufferToHex(signature); + // Validate signature. + // This will fail because `signerAddress` signed the message, but we're passing in `notSignerAddress` + const isValidSignature = await signatureValidator.publicIsValidSignature.callAsync( + orderHashHex, + notSignerAddress, + signatureHex, + ); + expect(isValidSignature).to.be.false(); + }); + + it('should return true when SignatureType=EthSign and signature is valid', async () => { + // Create EthSign signature + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + const orderHashWithEthSignPrefixHex = signatureUtils.addSignedMessagePrefix(orderHashHex); + const orderHashWithEthSignPrefixBuffer = ethUtil.toBuffer(orderHashWithEthSignPrefixHex); + const ecSignature = ethUtil.ecsign(orderHashWithEthSignPrefixBuffer, signerPrivateKey); + // Create 0x signature from EthSign signature + const signature = Buffer.concat([ + ethUtil.toBuffer(ecSignature.v), + ecSignature.r, + ecSignature.s, + ethUtil.toBuffer(`0x${SignatureType.EthSign}`), + ]); + const signatureHex = ethUtil.bufferToHex(signature); + // Validate signature + const isValidSignature = await signatureValidator.publicIsValidSignature.callAsync( + orderHashHex, + signerAddress, + signatureHex, + ); + expect(isValidSignature).to.be.true(); + }); + + it('should return false when SignatureType=EthSign and signature is invalid', async () => { + // Create EthSign signature + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + const orderHashWithEthSignPrefixHex = signatureUtils.addSignedMessagePrefix(orderHashHex); + const orderHashWithEthSignPrefixBuffer = ethUtil.toBuffer(orderHashWithEthSignPrefixHex); + const ecSignature = ethUtil.ecsign(orderHashWithEthSignPrefixBuffer, signerPrivateKey); + // Create 0x signature from EthSign signature + const signature = Buffer.concat([ + ethUtil.toBuffer(ecSignature.v), + ecSignature.r, + ecSignature.s, + ethUtil.toBuffer(`0x${SignatureType.EthSign}`), + ]); + const signatureHex = ethUtil.bufferToHex(signature); + // Validate signature. + // This will fail because `signerAddress` signed the message, but we're passing in `notSignerAddress` + const isValidSignature = await signatureValidator.publicIsValidSignature.callAsync( + orderHashHex, + notSignerAddress, + signatureHex, + ); + expect(isValidSignature).to.be.false(); + }); + + it('should return true when SignatureType=Wallet and signature is valid', async () => { + // Create EIP712 signature + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + const orderHashBuffer = ethUtil.toBuffer(orderHashHex); + const ecSignature = ethUtil.ecsign(orderHashBuffer, signerPrivateKey); + // Create 0x signature from EIP712 signature + const signature = Buffer.concat([ + ethUtil.toBuffer(ecSignature.v), + ecSignature.r, + ecSignature.s, + ethUtil.toBuffer(`0x${SignatureType.Wallet}`), + ]); + const signatureHex = ethUtil.bufferToHex(signature); + // Validate signature + const isValidSignature = await signatureValidator.publicIsValidSignature.callAsync( + orderHashHex, + testWallet.address, + signatureHex, + ); + expect(isValidSignature).to.be.true(); + }); + + it('should return false when SignatureType=Wallet and signature is invalid', async () => { + // Create EIP712 signature using a private key that does not belong to the wallet owner. + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + const orderHashBuffer = ethUtil.toBuffer(orderHashHex); + const notWalletOwnerPrivateKey = notSignerPrivateKey; + const ecSignature = ethUtil.ecsign(orderHashBuffer, notWalletOwnerPrivateKey); + // Create 0x signature from EIP712 signature + const signature = Buffer.concat([ + ethUtil.toBuffer(ecSignature.v), + ecSignature.r, + ecSignature.s, + ethUtil.toBuffer(`0x${SignatureType.Wallet}`), + ]); + const signatureHex = ethUtil.bufferToHex(signature); + // Validate signature + const isValidSignature = await signatureValidator.publicIsValidSignature.callAsync( + orderHashHex, + testWallet.address, + signatureHex, + ); + expect(isValidSignature).to.be.false(); + }); + + it('should revert when `isValidSignature` attempts to update state and SignatureType=Wallet', async () => { + // Create EIP712 signature + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + const orderHashBuffer = ethUtil.toBuffer(orderHashHex); + const ecSignature = ethUtil.ecsign(orderHashBuffer, signerPrivateKey); + // Create 0x signature from EIP712 signature + const signature = Buffer.concat([ + ethUtil.toBuffer(ecSignature.v), + ecSignature.r, + ecSignature.s, + ethUtil.toBuffer(`0x${SignatureType.Wallet}`), + ]); + const signatureHex = ethUtil.bufferToHex(signature); + await expectContractCallFailedAsync( + signatureValidator.publicIsValidSignature.callAsync( + orderHashHex, + maliciousWallet.address, + signatureHex, + ), + RevertReason.WalletError, + ); + }); + + it('should return true when SignatureType=Validator, signature is valid and validator is approved', async () => { + const validatorAddress = ethUtil.toBuffer(`${testValidator.address}`); + const signatureType = ethUtil.toBuffer(`0x${SignatureType.Validator}`); + const signature = Buffer.concat([validatorAddress, signatureType]); + const signatureHex = ethUtil.bufferToHex(signature); + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + const isValidSignature = await signatureValidator.publicIsValidSignature.callAsync( + orderHashHex, + signerAddress, + signatureHex, + ); + expect(isValidSignature).to.be.true(); + }); + + it('should return false when SignatureType=Validator, signature is invalid and validator is approved', async () => { + const validatorAddress = ethUtil.toBuffer(`${testValidator.address}`); + const signatureType = ethUtil.toBuffer(`0x${SignatureType.Validator}`); + const signature = Buffer.concat([validatorAddress, signatureType]); + const signatureHex = ethUtil.bufferToHex(signature); + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + // This will return false because we signed the message with `signerAddress`, but + // are validating against `notSignerAddress` + const isValidSignature = await signatureValidator.publicIsValidSignature.callAsync( + orderHashHex, + notSignerAddress, + signatureHex, + ); + expect(isValidSignature).to.be.false(); + }); + + it('should revert when `isValidSignature` attempts to update state and SignatureType=Validator', async () => { + const validatorAddress = ethUtil.toBuffer(`${maliciousValidator.address}`); + const signatureType = ethUtil.toBuffer(`0x${SignatureType.Validator}`); + const signature = Buffer.concat([validatorAddress, signatureType]); + const signatureHex = ethUtil.bufferToHex(signature); + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + await expectContractCallFailedAsync( + signatureValidator.publicIsValidSignature.callAsync(orderHashHex, signerAddress, signatureHex), + RevertReason.ValidatorError, + ); + }); + it('should return false when SignatureType=Validator, signature is valid and validator is not approved', async () => { + // Set approval of signature validator to false + await web3Wrapper.awaitTransactionSuccessAsync( + await signatureValidator.setSignatureValidatorApproval.sendTransactionAsync( + testValidator.address, + false, + { from: signerAddress }, + ), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + // Validate signature + const validatorAddress = ethUtil.toBuffer(`${testValidator.address}`); + const signatureType = ethUtil.toBuffer(`0x${SignatureType.Validator}`); + const signature = Buffer.concat([validatorAddress, signatureType]); + const signatureHex = ethUtil.bufferToHex(signature); + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + const isValidSignature = await signatureValidator.publicIsValidSignature.callAsync( + orderHashHex, + signerAddress, + signatureHex, + ); + expect(isValidSignature).to.be.false(); + }); + + it('should return true when SignatureType=Presigned and signer has presigned hash', async () => { + // Presign hash + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + await web3Wrapper.awaitTransactionSuccessAsync( + await signatureValidator.preSign.sendTransactionAsync( + orderHashHex, + signedOrder.makerAddress, + signedOrder.signature, + ), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + // Validate presigned signature + const signature = ethUtil.toBuffer(`0x${SignatureType.PreSigned}`); + const signatureHex = ethUtil.bufferToHex(signature); + const isValidSignature = await signatureValidator.publicIsValidSignature.callAsync( + orderHashHex, + signedOrder.makerAddress, + signatureHex, + ); + expect(isValidSignature).to.be.true(); + }); + + it('should return false when SignatureType=Presigned and signer has not presigned hash', async () => { + const signature = ethUtil.toBuffer(`0x${SignatureType.PreSigned}`); + const signatureHex = ethUtil.bufferToHex(signature); + const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); + const isValidSignature = await signatureValidator.publicIsValidSignature.callAsync( + orderHashHex, + signedOrder.makerAddress, + signatureHex, + ); + expect(isValidSignature).to.be.false(); + }); + + it('should return true when message was signed by a Trezor One (firmware version 1.6.2)', async () => { + // messageHash translates to 0x2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b + const messageHash = ethUtil.bufferToHex(ethUtil.toBuffer('++++++++++++++++++++++++++++++++')); + const signer = '0xc28b145f10f0bcf0fc000e778615f8fd73490bad'; + const v = ethUtil.toBuffer('0x1c'); + const r = ethUtil.toBuffer('0x7b888b596ccf87f0bacab0dcb483124973f7420f169b4824d7a12534ac1e9832'); + const s = ethUtil.toBuffer('0x0c8e14f7edc01459e13965f1da56e0c23ed11e2cca932571eee1292178f90424'); + const trezorSignatureType = ethUtil.toBuffer(`0x${SignatureType.EthSign}`); + const signature = Buffer.concat([v, r, s, trezorSignatureType]); + const signatureHex = ethUtil.bufferToHex(signature); + const isValidSignature = await signatureValidator.publicIsValidSignature.callAsync( + messageHash, + signer, + signatureHex, + ); + expect(isValidSignature).to.be.true(); + }); + + it('should return true when message was signed by a Trezor Model T (firmware version 2.0.7)', async () => { + // messageHash translates to 0x2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b + const messageHash = ethUtil.bufferToHex(ethUtil.toBuffer('++++++++++++++++++++++++++++++++')); + const signer = '0x98ce6d9345e8ffa7d99ee0822272fae9d2c0e895'; + const v = ethUtil.toBuffer('0x1c'); + const r = ethUtil.toBuffer('0x423b71062c327f0ec4fe199b8da0f34185e59b4c1cb4cc23df86cac4a601fb3f'); + const s = ethUtil.toBuffer('0x53810d6591b5348b7ee08ee812c874b0fdfb942c9849d59512c90e295221091f'); + const trezorSignatureType = ethUtil.toBuffer(`0x${SignatureType.EthSign}`); + const signature = Buffer.concat([v, r, s, trezorSignatureType]); + const signatureHex = ethUtil.bufferToHex(signature); + const isValidSignature = await signatureValidator.publicIsValidSignature.callAsync( + messageHash, + signer, + signatureHex, + ); + expect(isValidSignature).to.be.true(); + }); + }); + + describe('setSignatureValidatorApproval', () => { + it('should emit a SignatureValidatorApprovalSet with correct args when a validator is approved', async () => { + const approval = true; + const res = await signatureValidatorLogDecoder.getTxWithDecodedLogsAsync( + await signatureValidator.setSignatureValidatorApproval.sendTransactionAsync( + testValidator.address, + approval, + { + from: signerAddress, + }, + ), + ); + expect(res.logs.length).to.equal(1); + const log = res.logs[0] as LogWithDecodedArgs<TestSignatureValidatorSignatureValidatorApprovalEventArgs>; + const logArgs = log.args; + expect(logArgs.signerAddress).to.equal(signerAddress); + expect(logArgs.validatorAddress).to.equal(testValidator.address); + expect(logArgs.approved).to.equal(approval); + }); + it('should emit a SignatureValidatorApprovalSet with correct args when a validator is disapproved', async () => { + const approval = false; + const res = await signatureValidatorLogDecoder.getTxWithDecodedLogsAsync( + await signatureValidator.setSignatureValidatorApproval.sendTransactionAsync( + testValidator.address, + approval, + { + from: signerAddress, + }, + ), + ); + expect(res.logs.length).to.equal(1); + const log = res.logs[0] as LogWithDecodedArgs<TestSignatureValidatorSignatureValidatorApprovalEventArgs>; + const logArgs = log.args; + expect(logArgs.signerAddress).to.equal(signerAddress); + expect(logArgs.validatorAddress).to.equal(testValidator.address); + expect(logArgs.approved).to.equal(approval); + }); + }); +}); +// tslint:disable:max-file-line-count +// tslint:enable:no-unnecessary-type-assertion diff --git a/contracts/core/test/exchange/transactions.ts b/contracts/core/test/exchange/transactions.ts new file mode 100644 index 000000000..c4086d9be --- /dev/null +++ b/contracts/core/test/exchange/transactions.ts @@ -0,0 +1,467 @@ +import { + chaiSetup, + constants, + ERC20BalancesByOwner, + expectTransactionFailedAsync, + OrderFactory, + orderUtils, + provider, + SignedTransaction, + TransactionFactory, + txDefaults, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { assetDataUtils, generatePseudoRandomSalt } from '@0x/order-utils'; +import { OrderWithoutExchangeAddress, RevertReason, SignedOrder } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import * as chai from 'chai'; +import * as _ from 'lodash'; + +import { DummyERC20TokenContract } from '../../generated-wrappers/dummy_erc20_token'; +import { ERC20ProxyContract } from '../../generated-wrappers/erc20_proxy'; +import { ExchangeContract } from '../../generated-wrappers/exchange'; +import { ExchangeWrapperContract } from '../../generated-wrappers/exchange_wrapper'; +import { WhitelistContract } from '../../generated-wrappers/whitelist'; +import { artifacts } from '../../src/artifacts'; +import { ERC20Wrapper } from '../utils/erc20_wrapper'; +import { ExchangeWrapper } from '../utils/exchange_wrapper'; + +chaiSetup.configure(); +const expect = chai.expect; +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); + +describe('Exchange transactions', () => { + let senderAddress: string; + let owner: string; + let makerAddress: string; + let takerAddress: string; + let feeRecipientAddress: string; + + let erc20TokenA: DummyERC20TokenContract; + let erc20TokenB: DummyERC20TokenContract; + let zrxToken: DummyERC20TokenContract; + let exchange: ExchangeContract; + let erc20Proxy: ERC20ProxyContract; + + let erc20Balances: ERC20BalancesByOwner; + let signedOrder: SignedOrder; + let signedTx: SignedTransaction; + let orderWithoutExchangeAddress: OrderWithoutExchangeAddress; + let orderFactory: OrderFactory; + let makerTransactionFactory: TransactionFactory; + let takerTransactionFactory: TransactionFactory; + let exchangeWrapper: ExchangeWrapper; + let erc20Wrapper: ERC20Wrapper; + + let defaultMakerTokenAddress: string; + let defaultTakerTokenAddress: string; + let makerPrivateKey: Buffer; + let takerPrivateKey: Buffer; + + before(async () => { + await blockchainLifecycle.startAsync(); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + before(async () => { + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + const usedAddresses = ([owner, senderAddress, makerAddress, takerAddress, feeRecipientAddress] = _.slice( + accounts, + 0, + 5, + )); + + erc20Wrapper = new ERC20Wrapper(provider, usedAddresses, owner); + + const numDummyErc20ToDeploy = 3; + [erc20TokenA, erc20TokenB, zrxToken] = await erc20Wrapper.deployDummyTokensAsync( + numDummyErc20ToDeploy, + constants.DUMMY_TOKEN_DECIMALS, + ); + erc20Proxy = await erc20Wrapper.deployProxyAsync(); + await erc20Wrapper.setBalancesAndAllowancesAsync(); + + exchange = await ExchangeContract.deployFrom0xArtifactAsync( + artifacts.Exchange, + provider, + txDefaults, + assetDataUtils.encodeERC20AssetData(zrxToken.address), + ); + exchangeWrapper = new ExchangeWrapper(exchange, provider); + await exchangeWrapper.registerAssetProxyAsync(erc20Proxy.address, owner); + + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Proxy.addAuthorizedAddress.sendTransactionAsync(exchange.address, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + defaultMakerTokenAddress = erc20TokenA.address; + defaultTakerTokenAddress = erc20TokenB.address; + + const defaultOrderParams = { + ...constants.STATIC_ORDER_PARAMS, + senderAddress, + exchangeAddress: exchange.address, + makerAddress, + feeRecipientAddress, + makerAssetData: assetDataUtils.encodeERC20AssetData(defaultMakerTokenAddress), + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultTakerTokenAddress), + }; + makerPrivateKey = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(makerAddress)]; + takerPrivateKey = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(takerAddress)]; + orderFactory = new OrderFactory(makerPrivateKey, defaultOrderParams); + makerTransactionFactory = new TransactionFactory(makerPrivateKey, exchange.address); + takerTransactionFactory = new TransactionFactory(takerPrivateKey, exchange.address); + }); + describe('executeTransaction', () => { + describe('fillOrder', () => { + let takerAssetFillAmount: BigNumber; + beforeEach(async () => { + erc20Balances = await erc20Wrapper.getBalancesAsync(); + signedOrder = await orderFactory.newSignedOrderAsync(); + orderWithoutExchangeAddress = orderUtils.getOrderWithoutExchangeAddress(signedOrder); + + takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); + const data = exchange.fillOrder.getABIEncodedTransactionData( + orderWithoutExchangeAddress, + takerAssetFillAmount, + signedOrder.signature, + ); + signedTx = takerTransactionFactory.newSignedTransaction(data); + }); + + it('should throw if not called by specified sender', async () => { + return expectTransactionFailedAsync( + exchangeWrapper.executeTransactionAsync(signedTx, takerAddress), + RevertReason.FailedExecution, + ); + }); + + it('should transfer the correct amounts when signed by taker and called by sender', async () => { + await exchangeWrapper.executeTransactionAsync(signedTx, senderAddress); + const newBalances = await erc20Wrapper.getBalancesAsync(); + const makerAssetFillAmount = takerAssetFillAmount + .times(signedOrder.makerAssetAmount) + .dividedToIntegerBy(signedOrder.takerAssetAmount); + const makerFeePaid = signedOrder.makerFee + .times(makerAssetFillAmount) + .dividedToIntegerBy(signedOrder.makerAssetAmount); + const takerFeePaid = signedOrder.takerFee + .times(makerAssetFillAmount) + .dividedToIntegerBy(signedOrder.makerAssetAmount); + expect(newBalances[makerAddress][defaultMakerTokenAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerTokenAddress].minus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][defaultTakerTokenAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultTakerTokenAddress].add(takerAssetFillAmount), + ); + expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][zrxToken.address].minus(makerFeePaid), + ); + expect(newBalances[takerAddress][defaultTakerTokenAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultTakerTokenAddress].minus(takerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerTokenAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerTokenAddress].add(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[takerAddress][zrxToken.address].minus(takerFeePaid), + ); + expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[feeRecipientAddress][zrxToken.address].add(makerFeePaid.add(takerFeePaid)), + ); + }); + + it('should throw if the a 0x transaction with the same transactionHash has already been executed', async () => { + await exchangeWrapper.executeTransactionAsync(signedTx, senderAddress); + return expectTransactionFailedAsync( + exchangeWrapper.executeTransactionAsync(signedTx, senderAddress), + RevertReason.InvalidTxHash, + ); + }); + + it('should reset the currentContextAddress', async () => { + await exchangeWrapper.executeTransactionAsync(signedTx, senderAddress); + const currentContextAddress = await exchange.currentContextAddress.callAsync(); + expect(currentContextAddress).to.equal(constants.NULL_ADDRESS); + }); + }); + + describe('cancelOrder', () => { + beforeEach(async () => { + const data = exchange.cancelOrder.getABIEncodedTransactionData(orderWithoutExchangeAddress); + signedTx = makerTransactionFactory.newSignedTransaction(data); + }); + + it('should throw if not called by specified sender', async () => { + return expectTransactionFailedAsync( + exchangeWrapper.executeTransactionAsync(signedTx, makerAddress), + RevertReason.FailedExecution, + ); + }); + + it('should cancel the order when signed by maker and called by sender', async () => { + await exchangeWrapper.executeTransactionAsync(signedTx, senderAddress); + return expectTransactionFailedAsync( + exchangeWrapper.fillOrderAsync(signedOrder, senderAddress), + RevertReason.OrderUnfillable, + ); + }); + }); + + describe('cancelOrdersUpTo', () => { + let exchangeWrapperContract: ExchangeWrapperContract; + + before(async () => { + exchangeWrapperContract = await ExchangeWrapperContract.deployFrom0xArtifactAsync( + artifacts.ExchangeWrapper, + provider, + txDefaults, + exchange.address, + ); + }); + + it("should cancel an order if called from the order's sender", async () => { + const orderSalt = new BigNumber(0); + signedOrder = await orderFactory.newSignedOrderAsync({ + senderAddress: exchangeWrapperContract.address, + salt: orderSalt, + }); + const targetOrderEpoch = orderSalt.add(1); + const cancelData = exchange.cancelOrdersUpTo.getABIEncodedTransactionData(targetOrderEpoch); + const signedCancelTx = makerTransactionFactory.newSignedTransaction(cancelData); + await exchangeWrapperContract.cancelOrdersUpTo.sendTransactionAsync( + targetOrderEpoch, + signedCancelTx.salt, + signedCancelTx.signature, + { + from: makerAddress, + }, + ); + + const takerAssetFillAmount = signedOrder.takerAssetAmount; + orderWithoutExchangeAddress = orderUtils.getOrderWithoutExchangeAddress(signedOrder); + const fillData = exchange.fillOrder.getABIEncodedTransactionData( + orderWithoutExchangeAddress, + takerAssetFillAmount, + signedOrder.signature, + ); + const signedFillTx = takerTransactionFactory.newSignedTransaction(fillData); + return expectTransactionFailedAsync( + exchangeWrapperContract.fillOrder.sendTransactionAsync( + orderWithoutExchangeAddress, + takerAssetFillAmount, + signedFillTx.salt, + signedOrder.signature, + signedFillTx.signature, + { from: takerAddress }, + ), + RevertReason.FailedExecution, + ); + }); + + it("should not cancel an order if not called from the order's sender", async () => { + const orderSalt = new BigNumber(0); + signedOrder = await orderFactory.newSignedOrderAsync({ + senderAddress: exchangeWrapperContract.address, + salt: orderSalt, + }); + const targetOrderEpoch = orderSalt.add(1); + await exchangeWrapper.cancelOrdersUpToAsync(targetOrderEpoch, makerAddress); + + erc20Balances = await erc20Wrapper.getBalancesAsync(); + const takerAssetFillAmount = signedOrder.takerAssetAmount; + orderWithoutExchangeAddress = orderUtils.getOrderWithoutExchangeAddress(signedOrder); + const data = exchange.fillOrder.getABIEncodedTransactionData( + orderWithoutExchangeAddress, + takerAssetFillAmount, + signedOrder.signature, + ); + signedTx = takerTransactionFactory.newSignedTransaction(data); + await exchangeWrapperContract.fillOrder.sendTransactionAsync( + orderWithoutExchangeAddress, + takerAssetFillAmount, + signedTx.salt, + signedOrder.signature, + signedTx.signature, + { from: takerAddress }, + ); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + const makerAssetFillAmount = takerAssetFillAmount + .times(signedOrder.makerAssetAmount) + .dividedToIntegerBy(signedOrder.takerAssetAmount); + const makerFeePaid = signedOrder.makerFee + .times(makerAssetFillAmount) + .dividedToIntegerBy(signedOrder.makerAssetAmount); + const takerFeePaid = signedOrder.takerFee + .times(makerAssetFillAmount) + .dividedToIntegerBy(signedOrder.makerAssetAmount); + expect(newBalances[makerAddress][defaultMakerTokenAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerTokenAddress].minus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][defaultTakerTokenAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultTakerTokenAddress].add(takerAssetFillAmount), + ); + expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][zrxToken.address].minus(makerFeePaid), + ); + expect(newBalances[takerAddress][defaultTakerTokenAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultTakerTokenAddress].minus(takerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerTokenAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerTokenAddress].add(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[takerAddress][zrxToken.address].minus(takerFeePaid), + ); + expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[feeRecipientAddress][zrxToken.address].add(makerFeePaid.add(takerFeePaid)), + ); + }); + }); + }); + + describe('Whitelist', () => { + let whitelist: WhitelistContract; + let whitelistOrderFactory: OrderFactory; + + before(async () => { + whitelist = await WhitelistContract.deployFrom0xArtifactAsync( + artifacts.Whitelist, + provider, + txDefaults, + exchange.address, + ); + const isApproved = true; + await web3Wrapper.awaitTransactionSuccessAsync( + await exchange.setSignatureValidatorApproval.sendTransactionAsync(whitelist.address, isApproved, { + from: takerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const defaultOrderParams = { + ...constants.STATIC_ORDER_PARAMS, + senderAddress: whitelist.address, + exchangeAddress: exchange.address, + makerAddress, + feeRecipientAddress, + makerAssetData: assetDataUtils.encodeERC20AssetData(defaultMakerTokenAddress), + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultTakerTokenAddress), + }; + whitelistOrderFactory = new OrderFactory(makerPrivateKey, defaultOrderParams); + }); + + beforeEach(async () => { + signedOrder = await whitelistOrderFactory.newSignedOrderAsync(); + erc20Balances = await erc20Wrapper.getBalancesAsync(); + }); + + it('should revert if maker has not been whitelisted', async () => { + const isApproved = true; + await web3Wrapper.awaitTransactionSuccessAsync( + await whitelist.updateWhitelistStatus.sendTransactionAsync(takerAddress, isApproved, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + orderWithoutExchangeAddress = orderUtils.getOrderWithoutExchangeAddress(signedOrder); + const takerAssetFillAmount = signedOrder.takerAssetAmount; + const salt = generatePseudoRandomSalt(); + return expectTransactionFailedAsync( + whitelist.fillOrderIfWhitelisted.sendTransactionAsync( + orderWithoutExchangeAddress, + takerAssetFillAmount, + salt, + signedOrder.signature, + { from: takerAddress }, + ), + RevertReason.MakerNotWhitelisted, + ); + }); + + it('should revert if taker has not been whitelisted', async () => { + const isApproved = true; + await web3Wrapper.awaitTransactionSuccessAsync( + await whitelist.updateWhitelistStatus.sendTransactionAsync(makerAddress, isApproved, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + orderWithoutExchangeAddress = orderUtils.getOrderWithoutExchangeAddress(signedOrder); + const takerAssetFillAmount = signedOrder.takerAssetAmount; + const salt = generatePseudoRandomSalt(); + return expectTransactionFailedAsync( + whitelist.fillOrderIfWhitelisted.sendTransactionAsync( + orderWithoutExchangeAddress, + takerAssetFillAmount, + salt, + signedOrder.signature, + { from: takerAddress }, + ), + RevertReason.TakerNotWhitelisted, + ); + }); + + it('should fill the order if maker and taker have been whitelisted', async () => { + const isApproved = true; + await web3Wrapper.awaitTransactionSuccessAsync( + await whitelist.updateWhitelistStatus.sendTransactionAsync(makerAddress, isApproved, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + await web3Wrapper.awaitTransactionSuccessAsync( + await whitelist.updateWhitelistStatus.sendTransactionAsync(takerAddress, isApproved, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + orderWithoutExchangeAddress = orderUtils.getOrderWithoutExchangeAddress(signedOrder); + const takerAssetFillAmount = signedOrder.takerAssetAmount; + const salt = generatePseudoRandomSalt(); + await web3Wrapper.awaitTransactionSuccessAsync( + await whitelist.fillOrderIfWhitelisted.sendTransactionAsync( + orderWithoutExchangeAddress, + takerAssetFillAmount, + salt, + signedOrder.signature, + { from: takerAddress }, + ), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const makerAssetFillAmount = signedOrder.makerAssetAmount; + const makerFeePaid = signedOrder.makerFee; + const takerFeePaid = signedOrder.takerFee; + + expect(newBalances[makerAddress][defaultMakerTokenAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerTokenAddress].minus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][defaultTakerTokenAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultTakerTokenAddress].add(takerAssetFillAmount), + ); + expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][zrxToken.address].minus(makerFeePaid), + ); + expect(newBalances[takerAddress][defaultTakerTokenAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultTakerTokenAddress].minus(takerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerTokenAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerTokenAddress].add(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[takerAddress][zrxToken.address].minus(takerFeePaid), + ); + expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[feeRecipientAddress][zrxToken.address].add(makerFeePaid.add(takerFeePaid)), + ); + }); + }); +}); diff --git a/contracts/core/test/exchange/wrapper.ts b/contracts/core/test/exchange/wrapper.ts new file mode 100644 index 000000000..17cb7a3bb --- /dev/null +++ b/contracts/core/test/exchange/wrapper.ts @@ -0,0 +1,1458 @@ +import { + chaiSetup, + constants, + ERC20BalancesByOwner, + expectTransactionFailedAsync, + getLatestBlockTimestampAsync, + increaseTimeAndMineBlockAsync, + OrderFactory, + OrderStatus, + provider, + txDefaults, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { assetDataUtils, orderHashUtils } from '@0x/order-utils'; +import { RevertReason, SignedOrder } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; +import * as chai from 'chai'; +import * as _ from 'lodash'; + +import { DummyERC20TokenContract } from '../../generated-wrappers/dummy_erc20_token'; +import { DummyERC721TokenContract } from '../../generated-wrappers/dummy_erc721_token'; +import { ERC20ProxyContract } from '../../generated-wrappers/erc20_proxy'; +import { ERC721ProxyContract } from '../../generated-wrappers/erc721_proxy'; +import { ExchangeContract } from '../../generated-wrappers/exchange'; +import { ReentrantERC20TokenContract } from '../../generated-wrappers/reentrant_erc20_token'; +import { artifacts } from '../../src/artifacts'; +import { ERC20Wrapper } from '../utils/erc20_wrapper'; +import { ERC721Wrapper } from '../utils/erc721_wrapper'; +import { ExchangeWrapper } from '../utils/exchange_wrapper'; + +chaiSetup.configure(); +const expect = chai.expect; +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); + +describe('Exchange wrappers', () => { + let makerAddress: string; + let owner: string; + let takerAddress: string; + let feeRecipientAddress: string; + + let erc20TokenA: DummyERC20TokenContract; + let erc20TokenB: DummyERC20TokenContract; + let zrxToken: DummyERC20TokenContract; + let erc721Token: DummyERC721TokenContract; + let exchange: ExchangeContract; + let erc20Proxy: ERC20ProxyContract; + let erc721Proxy: ERC721ProxyContract; + let reentrantErc20Token: ReentrantERC20TokenContract; + + let exchangeWrapper: ExchangeWrapper; + let erc20Wrapper: ERC20Wrapper; + let erc721Wrapper: ERC721Wrapper; + let erc20Balances: ERC20BalancesByOwner; + let orderFactory: OrderFactory; + + let erc721MakerAssetId: BigNumber; + let erc721TakerAssetId: BigNumber; + + let defaultMakerAssetAddress: string; + let defaultTakerAssetAddress: string; + + before(async () => { + await blockchainLifecycle.startAsync(); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + before(async () => { + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + const usedAddresses = ([owner, makerAddress, takerAddress, feeRecipientAddress] = _.slice(accounts, 0, 4)); + + erc20Wrapper = new ERC20Wrapper(provider, usedAddresses, owner); + erc721Wrapper = new ERC721Wrapper(provider, usedAddresses, owner); + + const numDummyErc20ToDeploy = 3; + [erc20TokenA, erc20TokenB, zrxToken] = await erc20Wrapper.deployDummyTokensAsync( + numDummyErc20ToDeploy, + constants.DUMMY_TOKEN_DECIMALS, + ); + erc20Proxy = await erc20Wrapper.deployProxyAsync(); + await erc20Wrapper.setBalancesAndAllowancesAsync(); + + [erc721Token] = await erc721Wrapper.deployDummyTokensAsync(); + erc721Proxy = await erc721Wrapper.deployProxyAsync(); + await erc721Wrapper.setBalancesAndAllowancesAsync(); + const erc721Balances = await erc721Wrapper.getBalancesAsync(); + erc721MakerAssetId = erc721Balances[makerAddress][erc721Token.address][0]; + erc721TakerAssetId = erc721Balances[takerAddress][erc721Token.address][0]; + + exchange = await ExchangeContract.deployFrom0xArtifactAsync( + artifacts.Exchange, + provider, + txDefaults, + assetDataUtils.encodeERC20AssetData(zrxToken.address), + ); + exchangeWrapper = new ExchangeWrapper(exchange, provider); + await exchangeWrapper.registerAssetProxyAsync(erc20Proxy.address, owner); + await exchangeWrapper.registerAssetProxyAsync(erc721Proxy.address, owner); + + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Proxy.addAuthorizedAddress.sendTransactionAsync(exchange.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Proxy.addAuthorizedAddress.sendTransactionAsync(exchange.address, { + from: owner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + reentrantErc20Token = await ReentrantERC20TokenContract.deployFrom0xArtifactAsync( + artifacts.ReentrantERC20Token, + provider, + txDefaults, + exchange.address, + ); + + defaultMakerAssetAddress = erc20TokenA.address; + defaultTakerAssetAddress = erc20TokenB.address; + + const defaultOrderParams = { + ...constants.STATIC_ORDER_PARAMS, + exchangeAddress: exchange.address, + makerAddress, + feeRecipientAddress, + makerAssetData: assetDataUtils.encodeERC20AssetData(defaultMakerAssetAddress), + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultTakerAssetAddress), + }; + const privateKey = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(makerAddress)]; + orderFactory = new OrderFactory(privateKey, defaultOrderParams); + }); + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + erc20Balances = await erc20Wrapper.getBalancesAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + describe('fillOrKillOrder', () => { + const reentrancyTest = (functionNames: string[]) => { + _.forEach(functionNames, async (functionName: string, functionId: number) => { + const description = `should not allow fillOrKillOrder to reenter the Exchange contract via ${functionName}`; + it(description, async () => { + const signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(reentrantErc20Token.address), + }); + await web3Wrapper.awaitTransactionSuccessAsync( + await reentrantErc20Token.setCurrentFunction.sendTransactionAsync(functionId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await expectTransactionFailedAsync( + exchangeWrapper.fillOrKillOrderAsync(signedOrder, takerAddress), + RevertReason.TransferFailed, + ); + }); + }); + }; + describe('fillOrKillOrder reentrancy tests', () => reentrancyTest(constants.FUNCTIONS_WITH_MUTEX)); + + it('should transfer the correct amounts', async () => { + const signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(200), 18), + }); + const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); + await exchangeWrapper.fillOrKillOrderAsync(signedOrder, takerAddress, { + takerAssetFillAmount, + }); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const makerAssetFilledAmount = takerAssetFillAmount + .times(signedOrder.makerAssetAmount) + .dividedToIntegerBy(signedOrder.takerAssetAmount); + const makerFee = signedOrder.makerFee + .times(makerAssetFilledAmount) + .dividedToIntegerBy(signedOrder.makerAssetAmount); + const takerFee = signedOrder.takerFee + .times(makerAssetFilledAmount) + .dividedToIntegerBy(signedOrder.makerAssetAmount); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFilledAmount), + ); + expect(newBalances[makerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultTakerAssetAddress].add(takerAssetFillAmount), + ); + expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][zrxToken.address].minus(makerFee), + ); + expect(newBalances[takerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultTakerAssetAddress].minus(takerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].add(makerAssetFilledAmount), + ); + expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[takerAddress][zrxToken.address].minus(takerFee), + ); + expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[feeRecipientAddress][zrxToken.address].add(makerFee.add(takerFee)), + ); + }); + + it('should throw if a signedOrder is expired', async () => { + const currentTimestamp = await getLatestBlockTimestampAsync(); + const signedOrder = await orderFactory.newSignedOrderAsync({ + expirationTimeSeconds: new BigNumber(currentTimestamp).sub(10), + }); + + return expectTransactionFailedAsync( + exchangeWrapper.fillOrKillOrderAsync(signedOrder, takerAddress), + RevertReason.OrderUnfillable, + ); + }); + + it('should throw if entire takerAssetFillAmount not filled', async () => { + const signedOrder = await orderFactory.newSignedOrderAsync(); + + await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { + takerAssetFillAmount: signedOrder.takerAssetAmount.div(2), + }); + + return expectTransactionFailedAsync( + exchangeWrapper.fillOrKillOrderAsync(signedOrder, takerAddress), + RevertReason.CompleteFillFailed, + ); + }); + }); + + describe('fillOrderNoThrow', () => { + const reentrancyTest = (functionNames: string[]) => { + _.forEach(functionNames, async (functionName: string, functionId: number) => { + const description = `should not allow fillOrderNoThrow to reenter the Exchange contract via ${functionName}`; + it(description, async () => { + const signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(reentrantErc20Token.address), + }); + await web3Wrapper.awaitTransactionSuccessAsync( + await reentrantErc20Token.setCurrentFunction.sendTransactionAsync(functionId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await exchangeWrapper.fillOrderNoThrowAsync(signedOrder, takerAddress); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(erc20Balances).to.deep.equal(newBalances); + }); + }); + }; + describe('fillOrderNoThrow reentrancy tests', () => reentrancyTest(constants.FUNCTIONS_WITH_MUTEX)); + + it('should transfer the correct amounts', async () => { + const signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(200), 18), + }); + const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); + + await exchangeWrapper.fillOrderNoThrowAsync(signedOrder, takerAddress, { + takerAssetFillAmount, + // HACK(albrow): We need to hardcode the gas estimate here because + // the Geth gas estimator doesn't work with the way we use + // delegatecall and swallow errors. + gas: 250000, + }); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + const makerAssetFilledAmount = takerAssetFillAmount + .times(signedOrder.makerAssetAmount) + .dividedToIntegerBy(signedOrder.takerAssetAmount); + const makerFee = signedOrder.makerFee + .times(makerAssetFilledAmount) + .dividedToIntegerBy(signedOrder.makerAssetAmount); + const takerFee = signedOrder.takerFee + .times(makerAssetFilledAmount) + .dividedToIntegerBy(signedOrder.makerAssetAmount); + + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFilledAmount), + ); + expect(newBalances[makerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultTakerAssetAddress].add(takerAssetFillAmount), + ); + expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][zrxToken.address].minus(makerFee), + ); + expect(newBalances[takerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultTakerAssetAddress].minus(takerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].add(makerAssetFilledAmount), + ); + expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[takerAddress][zrxToken.address].minus(takerFee), + ); + expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[feeRecipientAddress][zrxToken.address].add(makerFee.add(takerFee)), + ); + }); + + it('should not change erc20Balances if maker erc20Balances are too low to fill order', async () => { + const signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100000), 18), + }); + + await exchangeWrapper.fillOrderNoThrowAsync(signedOrder, takerAddress); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + + it('should not change erc20Balances if taker erc20Balances are too low to fill order', async () => { + const signedOrder = await orderFactory.newSignedOrderAsync({ + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100000), 18), + }); + + await exchangeWrapper.fillOrderNoThrowAsync(signedOrder, takerAddress); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + + it('should not change erc20Balances if maker allowances are too low to fill order', async () => { + const signedOrder = await orderFactory.newSignedOrderAsync(); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20TokenA.approve.sendTransactionAsync(erc20Proxy.address, new BigNumber(0), { + from: makerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await exchangeWrapper.fillOrderNoThrowAsync(signedOrder, takerAddress); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20TokenA.approve.sendTransactionAsync(erc20Proxy.address, constants.INITIAL_ERC20_ALLOWANCE, { + from: makerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + + it('should not change erc20Balances if taker allowances are too low to fill order', async () => { + const signedOrder = await orderFactory.newSignedOrderAsync(); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20TokenB.approve.sendTransactionAsync(erc20Proxy.address, new BigNumber(0), { + from: takerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await exchangeWrapper.fillOrderNoThrowAsync(signedOrder, takerAddress); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20TokenB.approve.sendTransactionAsync(erc20Proxy.address, constants.INITIAL_ERC20_ALLOWANCE, { + from: takerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + + it('should not change erc20Balances if makerAssetAddress is ZRX, makerAssetAmount + makerFee > maker balance', async () => { + const makerZRXBalance = new BigNumber(erc20Balances[makerAddress][zrxToken.address]); + const signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: makerZRXBalance, + makerFee: new BigNumber(1), + makerAssetData: assetDataUtils.encodeERC20AssetData(zrxToken.address), + }); + await exchangeWrapper.fillOrderNoThrowAsync(signedOrder, takerAddress); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + + it('should not change erc20Balances if makerAssetAddress is ZRX, makerAssetAmount + makerFee > maker allowance', async () => { + const makerZRXAllowance = await zrxToken.allowance.callAsync(makerAddress, erc20Proxy.address); + const signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber(makerZRXAllowance), + makerFee: new BigNumber(1), + makerAssetData: assetDataUtils.encodeERC20AssetData(zrxToken.address), + }); + await exchangeWrapper.fillOrderNoThrowAsync(signedOrder, takerAddress); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + + it('should not change erc20Balances if takerAssetAddress is ZRX, takerAssetAmount + takerFee > taker balance', async () => { + const takerZRXBalance = new BigNumber(erc20Balances[takerAddress][zrxToken.address]); + const signedOrder = await orderFactory.newSignedOrderAsync({ + takerAssetAmount: takerZRXBalance, + takerFee: new BigNumber(1), + takerAssetData: assetDataUtils.encodeERC20AssetData(zrxToken.address), + }); + await exchangeWrapper.fillOrderNoThrowAsync(signedOrder, takerAddress); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + + it('should not change erc20Balances if takerAssetAddress is ZRX, takerAssetAmount + takerFee > taker allowance', async () => { + const takerZRXAllowance = await zrxToken.allowance.callAsync(takerAddress, erc20Proxy.address); + const signedOrder = await orderFactory.newSignedOrderAsync({ + takerAssetAmount: new BigNumber(takerZRXAllowance), + takerFee: new BigNumber(1), + takerAssetData: assetDataUtils.encodeERC20AssetData(zrxToken.address), + }); + await exchangeWrapper.fillOrderNoThrowAsync(signedOrder, takerAddress); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + + it('should successfully exchange ERC721 tokens', async () => { + // Construct Exchange parameters + const makerAssetId = erc721MakerAssetId; + const takerAssetId = erc721TakerAssetId; + const signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber(1), + takerAssetAmount: new BigNumber(1), + makerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), + takerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, takerAssetId), + }); + // Verify pre-conditions + const initialOwnerMakerAsset = await erc721Token.ownerOf.callAsync(makerAssetId); + expect(initialOwnerMakerAsset).to.be.bignumber.equal(makerAddress); + const initialOwnerTakerAsset = await erc721Token.ownerOf.callAsync(takerAssetId); + expect(initialOwnerTakerAsset).to.be.bignumber.equal(takerAddress); + // Call Exchange + const takerAssetFillAmount = signedOrder.takerAssetAmount; + await exchangeWrapper.fillOrderNoThrowAsync(signedOrder, takerAddress, { + takerAssetFillAmount, + // HACK(albrow): We need to hardcode the gas estimate here because + // the Geth gas estimator doesn't work with the way we use + // delegatecall and swallow errors. + gas: 280000, + }); + // Verify post-conditions + const newOwnerMakerAsset = await erc721Token.ownerOf.callAsync(makerAssetId); + expect(newOwnerMakerAsset).to.be.bignumber.equal(takerAddress); + const newOwnerTakerAsset = await erc721Token.ownerOf.callAsync(takerAssetId); + expect(newOwnerTakerAsset).to.be.bignumber.equal(makerAddress); + }); + }); + + describe('batch functions', () => { + let signedOrders: SignedOrder[]; + beforeEach(async () => { + signedOrders = [ + await orderFactory.newSignedOrderAsync(), + await orderFactory.newSignedOrderAsync(), + await orderFactory.newSignedOrderAsync(), + ]; + }); + + describe('batchFillOrders', () => { + const reentrancyTest = (functionNames: string[]) => { + _.forEach(functionNames, async (functionName: string, functionId: number) => { + const description = `should not allow batchFillOrders to reenter the Exchange contract via ${functionName}`; + it(description, async () => { + const signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(reentrantErc20Token.address), + }); + await web3Wrapper.awaitTransactionSuccessAsync( + await reentrantErc20Token.setCurrentFunction.sendTransactionAsync(functionId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await expectTransactionFailedAsync( + exchangeWrapper.batchFillOrdersAsync([signedOrder], takerAddress), + RevertReason.TransferFailed, + ); + }); + }); + }; + describe('batchFillOrders reentrancy tests', () => reentrancyTest(constants.FUNCTIONS_WITH_MUTEX)); + + it('should transfer the correct amounts', async () => { + const takerAssetFillAmounts: BigNumber[] = []; + const makerAssetAddress = erc20TokenA.address; + const takerAssetAddress = erc20TokenB.address; + _.forEach(signedOrders, signedOrder => { + const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); + const makerAssetFilledAmount = takerAssetFillAmount + .times(signedOrder.makerAssetAmount) + .dividedToIntegerBy(signedOrder.takerAssetAmount); + const makerFee = signedOrder.makerFee + .times(makerAssetFilledAmount) + .dividedToIntegerBy(signedOrder.makerAssetAmount); + const takerFee = signedOrder.takerFee + .times(makerAssetFilledAmount) + .dividedToIntegerBy(signedOrder.makerAssetAmount); + takerAssetFillAmounts.push(takerAssetFillAmount); + erc20Balances[makerAddress][makerAssetAddress] = erc20Balances[makerAddress][ + makerAssetAddress + ].minus(makerAssetFilledAmount); + erc20Balances[makerAddress][takerAssetAddress] = erc20Balances[makerAddress][takerAssetAddress].add( + takerAssetFillAmount, + ); + erc20Balances[makerAddress][zrxToken.address] = erc20Balances[makerAddress][zrxToken.address].minus( + makerFee, + ); + erc20Balances[takerAddress][makerAssetAddress] = erc20Balances[takerAddress][makerAssetAddress].add( + makerAssetFilledAmount, + ); + erc20Balances[takerAddress][takerAssetAddress] = erc20Balances[takerAddress][ + takerAssetAddress + ].minus(takerAssetFillAmount); + erc20Balances[takerAddress][zrxToken.address] = erc20Balances[takerAddress][zrxToken.address].minus( + takerFee, + ); + erc20Balances[feeRecipientAddress][zrxToken.address] = erc20Balances[feeRecipientAddress][ + zrxToken.address + ].add(makerFee.add(takerFee)); + }); + + await exchangeWrapper.batchFillOrdersAsync(signedOrders, takerAddress, { + takerAssetFillAmounts, + }); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + }); + + describe('batchFillOrKillOrders', () => { + const reentrancyTest = (functionNames: string[]) => { + _.forEach(functionNames, async (functionName: string, functionId: number) => { + const description = `should not allow batchFillOrKillOrders to reenter the Exchange contract via ${functionName}`; + it(description, async () => { + const signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(reentrantErc20Token.address), + }); + await web3Wrapper.awaitTransactionSuccessAsync( + await reentrantErc20Token.setCurrentFunction.sendTransactionAsync(functionId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await expectTransactionFailedAsync( + exchangeWrapper.batchFillOrKillOrdersAsync([signedOrder], takerAddress), + RevertReason.TransferFailed, + ); + }); + }); + }; + describe('batchFillOrKillOrders reentrancy tests', () => reentrancyTest(constants.FUNCTIONS_WITH_MUTEX)); + + it('should transfer the correct amounts', async () => { + const takerAssetFillAmounts: BigNumber[] = []; + const makerAssetAddress = erc20TokenA.address; + const takerAssetAddress = erc20TokenB.address; + _.forEach(signedOrders, signedOrder => { + const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); + const makerAssetFilledAmount = takerAssetFillAmount + .times(signedOrder.makerAssetAmount) + .dividedToIntegerBy(signedOrder.takerAssetAmount); + const makerFee = signedOrder.makerFee + .times(makerAssetFilledAmount) + .dividedToIntegerBy(signedOrder.makerAssetAmount); + const takerFee = signedOrder.takerFee + .times(makerAssetFilledAmount) + .dividedToIntegerBy(signedOrder.makerAssetAmount); + takerAssetFillAmounts.push(takerAssetFillAmount); + erc20Balances[makerAddress][makerAssetAddress] = erc20Balances[makerAddress][ + makerAssetAddress + ].minus(makerAssetFilledAmount); + erc20Balances[makerAddress][takerAssetAddress] = erc20Balances[makerAddress][takerAssetAddress].add( + takerAssetFillAmount, + ); + erc20Balances[makerAddress][zrxToken.address] = erc20Balances[makerAddress][zrxToken.address].minus( + makerFee, + ); + erc20Balances[takerAddress][makerAssetAddress] = erc20Balances[takerAddress][makerAssetAddress].add( + makerAssetFilledAmount, + ); + erc20Balances[takerAddress][takerAssetAddress] = erc20Balances[takerAddress][ + takerAssetAddress + ].minus(takerAssetFillAmount); + erc20Balances[takerAddress][zrxToken.address] = erc20Balances[takerAddress][zrxToken.address].minus( + takerFee, + ); + erc20Balances[feeRecipientAddress][zrxToken.address] = erc20Balances[feeRecipientAddress][ + zrxToken.address + ].add(makerFee.add(takerFee)); + }); + + await exchangeWrapper.batchFillOrKillOrdersAsync(signedOrders, takerAddress, { + takerAssetFillAmounts, + }); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + + it('should throw if a single signedOrder does not fill the expected amount', async () => { + const takerAssetFillAmounts: BigNumber[] = []; + _.forEach(signedOrders, signedOrder => { + const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); + takerAssetFillAmounts.push(takerAssetFillAmount); + }); + + await exchangeWrapper.fillOrKillOrderAsync(signedOrders[0], takerAddress); + + return expectTransactionFailedAsync( + exchangeWrapper.batchFillOrKillOrdersAsync(signedOrders, takerAddress, { + takerAssetFillAmounts, + }), + RevertReason.OrderUnfillable, + ); + }); + }); + + describe('batchFillOrdersNoThrow', async () => { + const reentrancyTest = (functionNames: string[]) => { + _.forEach(functionNames, async (functionName: string, functionId: number) => { + const description = `should not allow batchFillOrdersNoThrow to reenter the Exchange contract via ${functionName}`; + it(description, async () => { + const signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(reentrantErc20Token.address), + }); + await web3Wrapper.awaitTransactionSuccessAsync( + await reentrantErc20Token.setCurrentFunction.sendTransactionAsync(functionId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await exchangeWrapper.batchFillOrdersNoThrowAsync([signedOrder], takerAddress); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(erc20Balances).to.deep.equal(newBalances); + }); + }); + }; + describe('batchFillOrdersNoThrow reentrancy tests', () => reentrancyTest(constants.FUNCTIONS_WITH_MUTEX)); + + it('should transfer the correct amounts', async () => { + const takerAssetFillAmounts: BigNumber[] = []; + const makerAssetAddress = erc20TokenA.address; + const takerAssetAddress = erc20TokenB.address; + _.forEach(signedOrders, signedOrder => { + const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); + const makerAssetFilledAmount = takerAssetFillAmount + .times(signedOrder.makerAssetAmount) + .dividedToIntegerBy(signedOrder.takerAssetAmount); + const makerFee = signedOrder.makerFee + .times(makerAssetFilledAmount) + .dividedToIntegerBy(signedOrder.makerAssetAmount); + const takerFee = signedOrder.takerFee + .times(makerAssetFilledAmount) + .dividedToIntegerBy(signedOrder.makerAssetAmount); + takerAssetFillAmounts.push(takerAssetFillAmount); + erc20Balances[makerAddress][makerAssetAddress] = erc20Balances[makerAddress][ + makerAssetAddress + ].minus(makerAssetFilledAmount); + erc20Balances[makerAddress][takerAssetAddress] = erc20Balances[makerAddress][takerAssetAddress].add( + takerAssetFillAmount, + ); + erc20Balances[makerAddress][zrxToken.address] = erc20Balances[makerAddress][zrxToken.address].minus( + makerFee, + ); + erc20Balances[takerAddress][makerAssetAddress] = erc20Balances[takerAddress][makerAssetAddress].add( + makerAssetFilledAmount, + ); + erc20Balances[takerAddress][takerAssetAddress] = erc20Balances[takerAddress][ + takerAssetAddress + ].minus(takerAssetFillAmount); + erc20Balances[takerAddress][zrxToken.address] = erc20Balances[takerAddress][zrxToken.address].minus( + takerFee, + ); + erc20Balances[feeRecipientAddress][zrxToken.address] = erc20Balances[feeRecipientAddress][ + zrxToken.address + ].add(makerFee.add(takerFee)); + }); + + await exchangeWrapper.batchFillOrdersNoThrowAsync(signedOrders, takerAddress, { + takerAssetFillAmounts, + // HACK(albrow): We need to hardcode the gas estimate here because + // the Geth gas estimator doesn't work with the way we use + // delegatecall and swallow errors. + gas: 600000, + }); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + + it('should not throw if an order is invalid and fill the remaining orders', async () => { + const takerAssetFillAmounts: BigNumber[] = []; + const makerAssetAddress = erc20TokenA.address; + const takerAssetAddress = erc20TokenB.address; + + const invalidOrder = { + ...signedOrders[0], + signature: '0x00', + }; + const validOrders = signedOrders.slice(1); + + takerAssetFillAmounts.push(invalidOrder.takerAssetAmount.div(2)); + _.forEach(validOrders, signedOrder => { + const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); + const makerAssetFilledAmount = takerAssetFillAmount + .times(signedOrder.makerAssetAmount) + .dividedToIntegerBy(signedOrder.takerAssetAmount); + const makerFee = signedOrder.makerFee + .times(makerAssetFilledAmount) + .dividedToIntegerBy(signedOrder.makerAssetAmount); + const takerFee = signedOrder.takerFee + .times(makerAssetFilledAmount) + .dividedToIntegerBy(signedOrder.makerAssetAmount); + takerAssetFillAmounts.push(takerAssetFillAmount); + erc20Balances[makerAddress][makerAssetAddress] = erc20Balances[makerAddress][ + makerAssetAddress + ].minus(makerAssetFilledAmount); + erc20Balances[makerAddress][takerAssetAddress] = erc20Balances[makerAddress][takerAssetAddress].add( + takerAssetFillAmount, + ); + erc20Balances[makerAddress][zrxToken.address] = erc20Balances[makerAddress][zrxToken.address].minus( + makerFee, + ); + erc20Balances[takerAddress][makerAssetAddress] = erc20Balances[takerAddress][makerAssetAddress].add( + makerAssetFilledAmount, + ); + erc20Balances[takerAddress][takerAssetAddress] = erc20Balances[takerAddress][ + takerAssetAddress + ].minus(takerAssetFillAmount); + erc20Balances[takerAddress][zrxToken.address] = erc20Balances[takerAddress][zrxToken.address].minus( + takerFee, + ); + erc20Balances[feeRecipientAddress][zrxToken.address] = erc20Balances[feeRecipientAddress][ + zrxToken.address + ].add(makerFee.add(takerFee)); + }); + + const newOrders = [invalidOrder, ...validOrders]; + await exchangeWrapper.batchFillOrdersNoThrowAsync(newOrders, takerAddress, { + takerAssetFillAmounts, + // HACK(albrow): We need to hardcode the gas estimate here because + // the Geth gas estimator doesn't work with the way we use + // delegatecall and swallow errors. + gas: 450000, + }); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + }); + + describe('marketSellOrders', () => { + const reentrancyTest = (functionNames: string[]) => { + _.forEach(functionNames, async (functionName: string, functionId: number) => { + const description = `should not allow marketSellOrders to reenter the Exchange contract via ${functionName}`; + it(description, async () => { + const signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(reentrantErc20Token.address), + }); + await web3Wrapper.awaitTransactionSuccessAsync( + await reentrantErc20Token.setCurrentFunction.sendTransactionAsync(functionId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await expectTransactionFailedAsync( + exchangeWrapper.marketSellOrdersAsync([signedOrder], takerAddress, { + takerAssetFillAmount: signedOrder.takerAssetAmount, + }), + RevertReason.TransferFailed, + ); + }); + }); + }; + describe('marketSellOrders reentrancy tests', () => reentrancyTest(constants.FUNCTIONS_WITH_MUTEX)); + + it('should stop when the entire takerAssetFillAmount is filled', async () => { + const takerAssetFillAmount = signedOrders[0].takerAssetAmount.plus( + signedOrders[1].takerAssetAmount.div(2), + ); + await exchangeWrapper.marketSellOrdersAsync(signedOrders, takerAddress, { + takerAssetFillAmount, + }); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const makerAssetFilledAmount = signedOrders[0].makerAssetAmount.add( + signedOrders[1].makerAssetAmount.dividedToIntegerBy(2), + ); + const makerFee = signedOrders[0].makerFee.add(signedOrders[1].makerFee.dividedToIntegerBy(2)); + const takerFee = signedOrders[0].takerFee.add(signedOrders[1].takerFee.dividedToIntegerBy(2)); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFilledAmount), + ); + expect(newBalances[makerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultTakerAssetAddress].add(takerAssetFillAmount), + ); + expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][zrxToken.address].minus(makerFee), + ); + expect(newBalances[takerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultTakerAssetAddress].minus(takerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].add(makerAssetFilledAmount), + ); + expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[takerAddress][zrxToken.address].minus(takerFee), + ); + expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[feeRecipientAddress][zrxToken.address].add(makerFee.add(takerFee)), + ); + }); + + it('should fill all signedOrders if cannot fill entire takerAssetFillAmount', async () => { + const takerAssetFillAmount = Web3Wrapper.toBaseUnitAmount(new BigNumber(100000), 18); + _.forEach(signedOrders, signedOrder => { + erc20Balances[makerAddress][defaultMakerAssetAddress] = erc20Balances[makerAddress][ + defaultMakerAssetAddress + ].minus(signedOrder.makerAssetAmount); + erc20Balances[makerAddress][defaultTakerAssetAddress] = erc20Balances[makerAddress][ + defaultTakerAssetAddress + ].add(signedOrder.takerAssetAmount); + erc20Balances[makerAddress][zrxToken.address] = erc20Balances[makerAddress][zrxToken.address].minus( + signedOrder.makerFee, + ); + erc20Balances[takerAddress][defaultMakerAssetAddress] = erc20Balances[takerAddress][ + defaultMakerAssetAddress + ].add(signedOrder.makerAssetAmount); + erc20Balances[takerAddress][defaultTakerAssetAddress] = erc20Balances[takerAddress][ + defaultTakerAssetAddress + ].minus(signedOrder.takerAssetAmount); + erc20Balances[takerAddress][zrxToken.address] = erc20Balances[takerAddress][zrxToken.address].minus( + signedOrder.takerFee, + ); + erc20Balances[feeRecipientAddress][zrxToken.address] = erc20Balances[feeRecipientAddress][ + zrxToken.address + ].add(signedOrder.makerFee.add(signedOrder.takerFee)); + }); + await exchangeWrapper.marketSellOrdersAsync(signedOrders, takerAddress, { + takerAssetFillAmount, + }); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + + it('should throw when a signedOrder does not use the same takerAssetAddress', async () => { + signedOrders = [ + await orderFactory.newSignedOrderAsync(), + await orderFactory.newSignedOrderAsync({ + takerAssetData: assetDataUtils.encodeERC20AssetData(zrxToken.address), + }), + await orderFactory.newSignedOrderAsync(), + ]; + + return expectTransactionFailedAsync( + exchangeWrapper.marketSellOrdersAsync(signedOrders, takerAddress, { + takerAssetFillAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(1000), 18), + }), + // We simply use the takerAssetData from the first order for all orders. + // If they are not the same, the contract throws when validating the order signature + RevertReason.InvalidOrderSignature, + ); + }); + }); + + describe('marketSellOrdersNoThrow', () => { + const reentrancyTest = (functionNames: string[]) => { + _.forEach(functionNames, async (functionName: string, functionId: number) => { + const description = `should not allow marketSellOrdersNoThrow to reenter the Exchange contract via ${functionName}`; + it(description, async () => { + const signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(reentrantErc20Token.address), + }); + await web3Wrapper.awaitTransactionSuccessAsync( + await reentrantErc20Token.setCurrentFunction.sendTransactionAsync(functionId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await exchangeWrapper.marketSellOrdersNoThrowAsync([signedOrder], takerAddress, { + takerAssetFillAmount: signedOrder.takerAssetAmount, + }); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(erc20Balances).to.deep.equal(newBalances); + }); + }); + }; + describe('marketSellOrdersNoThrow reentrancy tests', () => reentrancyTest(constants.FUNCTIONS_WITH_MUTEX)); + + it('should stop when the entire takerAssetFillAmount is filled', async () => { + const takerAssetFillAmount = signedOrders[0].takerAssetAmount.plus( + signedOrders[1].takerAssetAmount.div(2), + ); + await exchangeWrapper.marketSellOrdersNoThrowAsync(signedOrders, takerAddress, { + takerAssetFillAmount, + // HACK(albrow): We need to hardcode the gas estimate here because + // the Geth gas estimator doesn't work with the way we use + // delegatecall and swallow errors. + gas: 6000000, + }); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const makerAssetFilledAmount = signedOrders[0].makerAssetAmount.add( + signedOrders[1].makerAssetAmount.dividedToIntegerBy(2), + ); + const makerFee = signedOrders[0].makerFee.add(signedOrders[1].makerFee.dividedToIntegerBy(2)); + const takerFee = signedOrders[0].takerFee.add(signedOrders[1].takerFee.dividedToIntegerBy(2)); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFilledAmount), + ); + expect(newBalances[makerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultTakerAssetAddress].add(takerAssetFillAmount), + ); + expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][zrxToken.address].minus(makerFee), + ); + expect(newBalances[takerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultTakerAssetAddress].minus(takerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].add(makerAssetFilledAmount), + ); + expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[takerAddress][zrxToken.address].minus(takerFee), + ); + expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[feeRecipientAddress][zrxToken.address].add(makerFee.add(takerFee)), + ); + }); + + it('should fill all signedOrders if cannot fill entire takerAssetFillAmount', async () => { + const takerAssetFillAmount = Web3Wrapper.toBaseUnitAmount(new BigNumber(100000), 18); + _.forEach(signedOrders, signedOrder => { + erc20Balances[makerAddress][defaultMakerAssetAddress] = erc20Balances[makerAddress][ + defaultMakerAssetAddress + ].minus(signedOrder.makerAssetAmount); + erc20Balances[makerAddress][defaultTakerAssetAddress] = erc20Balances[makerAddress][ + defaultTakerAssetAddress + ].add(signedOrder.takerAssetAmount); + erc20Balances[makerAddress][zrxToken.address] = erc20Balances[makerAddress][zrxToken.address].minus( + signedOrder.makerFee, + ); + erc20Balances[takerAddress][defaultMakerAssetAddress] = erc20Balances[takerAddress][ + defaultMakerAssetAddress + ].add(signedOrder.makerAssetAmount); + erc20Balances[takerAddress][defaultTakerAssetAddress] = erc20Balances[takerAddress][ + defaultTakerAssetAddress + ].minus(signedOrder.takerAssetAmount); + erc20Balances[takerAddress][zrxToken.address] = erc20Balances[takerAddress][zrxToken.address].minus( + signedOrder.takerFee, + ); + erc20Balances[feeRecipientAddress][zrxToken.address] = erc20Balances[feeRecipientAddress][ + zrxToken.address + ].add(signedOrder.makerFee.add(signedOrder.takerFee)); + }); + await exchangeWrapper.marketSellOrdersNoThrowAsync(signedOrders, takerAddress, { + takerAssetFillAmount, + // HACK(albrow): We need to hardcode the gas estimate here because + // the Geth gas estimator doesn't work with the way we use + // delegatecall and swallow errors. + gas: 600000, + }); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + + it('should not fill a signedOrder that does not use the same takerAssetAddress', async () => { + signedOrders = [ + await orderFactory.newSignedOrderAsync(), + await orderFactory.newSignedOrderAsync(), + await orderFactory.newSignedOrderAsync({ + takerAssetData: assetDataUtils.encodeERC20AssetData(zrxToken.address), + }), + ]; + const takerAssetFillAmount = Web3Wrapper.toBaseUnitAmount(new BigNumber(100000), 18); + const filledSignedOrders = signedOrders.slice(0, -1); + _.forEach(filledSignedOrders, signedOrder => { + erc20Balances[makerAddress][defaultMakerAssetAddress] = erc20Balances[makerAddress][ + defaultMakerAssetAddress + ].minus(signedOrder.makerAssetAmount); + erc20Balances[makerAddress][defaultTakerAssetAddress] = erc20Balances[makerAddress][ + defaultTakerAssetAddress + ].add(signedOrder.takerAssetAmount); + erc20Balances[makerAddress][zrxToken.address] = erc20Balances[makerAddress][zrxToken.address].minus( + signedOrder.makerFee, + ); + erc20Balances[takerAddress][defaultMakerAssetAddress] = erc20Balances[takerAddress][ + defaultMakerAssetAddress + ].add(signedOrder.makerAssetAmount); + erc20Balances[takerAddress][defaultTakerAssetAddress] = erc20Balances[takerAddress][ + defaultTakerAssetAddress + ].minus(signedOrder.takerAssetAmount); + erc20Balances[takerAddress][zrxToken.address] = erc20Balances[takerAddress][zrxToken.address].minus( + signedOrder.takerFee, + ); + erc20Balances[feeRecipientAddress][zrxToken.address] = erc20Balances[feeRecipientAddress][ + zrxToken.address + ].add(signedOrder.makerFee.add(signedOrder.takerFee)); + }); + await exchangeWrapper.marketSellOrdersNoThrowAsync(signedOrders, takerAddress, { + takerAssetFillAmount, + // HACK(albrow): We need to hardcode the gas estimate here because + // the Geth gas estimator doesn't work with the way we use + // delegatecall and swallow errors. + gas: 600000, + }); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + }); + + describe('marketBuyOrders', () => { + const reentrancyTest = (functionNames: string[]) => { + _.forEach(functionNames, async (functionName: string, functionId: number) => { + const description = `should not allow marketBuyOrders to reenter the Exchange contract via ${functionName}`; + it(description, async () => { + const signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(reentrantErc20Token.address), + }); + await web3Wrapper.awaitTransactionSuccessAsync( + await reentrantErc20Token.setCurrentFunction.sendTransactionAsync(functionId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await expectTransactionFailedAsync( + exchangeWrapper.marketBuyOrdersAsync([signedOrder], takerAddress, { + makerAssetFillAmount: signedOrder.makerAssetAmount, + }), + RevertReason.TransferFailed, + ); + }); + }); + }; + describe('marketBuyOrders reentrancy tests', () => reentrancyTest(constants.FUNCTIONS_WITH_MUTEX)); + + it('should stop when the entire makerAssetFillAmount is filled', async () => { + const makerAssetFillAmount = signedOrders[0].makerAssetAmount.plus( + signedOrders[1].makerAssetAmount.div(2), + ); + await exchangeWrapper.marketBuyOrdersAsync(signedOrders, takerAddress, { + makerAssetFillAmount, + }); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const makerAmountBought = signedOrders[0].takerAssetAmount.add( + signedOrders[1].takerAssetAmount.dividedToIntegerBy(2), + ); + const makerFee = signedOrders[0].makerFee.add(signedOrders[1].makerFee.dividedToIntegerBy(2)); + const takerFee = signedOrders[0].takerFee.add(signedOrders[1].takerFee.dividedToIntegerBy(2)); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultTakerAssetAddress].add(makerAmountBought), + ); + expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][zrxToken.address].minus(makerFee), + ); + expect(newBalances[takerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultTakerAssetAddress].minus(makerAmountBought), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].add(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[takerAddress][zrxToken.address].minus(takerFee), + ); + expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[feeRecipientAddress][zrxToken.address].add(makerFee.add(takerFee)), + ); + }); + + it('should fill all signedOrders if cannot fill entire makerAssetFillAmount', async () => { + const makerAssetFillAmount = Web3Wrapper.toBaseUnitAmount(new BigNumber(100000), 18); + _.forEach(signedOrders, signedOrder => { + erc20Balances[makerAddress][defaultMakerAssetAddress] = erc20Balances[makerAddress][ + defaultMakerAssetAddress + ].minus(signedOrder.makerAssetAmount); + erc20Balances[makerAddress][defaultTakerAssetAddress] = erc20Balances[makerAddress][ + defaultTakerAssetAddress + ].add(signedOrder.takerAssetAmount); + erc20Balances[makerAddress][zrxToken.address] = erc20Balances[makerAddress][zrxToken.address].minus( + signedOrder.makerFee, + ); + erc20Balances[takerAddress][defaultMakerAssetAddress] = erc20Balances[takerAddress][ + defaultMakerAssetAddress + ].add(signedOrder.makerAssetAmount); + erc20Balances[takerAddress][defaultTakerAssetAddress] = erc20Balances[takerAddress][ + defaultTakerAssetAddress + ].minus(signedOrder.takerAssetAmount); + erc20Balances[takerAddress][zrxToken.address] = erc20Balances[takerAddress][zrxToken.address].minus( + signedOrder.takerFee, + ); + erc20Balances[feeRecipientAddress][zrxToken.address] = erc20Balances[feeRecipientAddress][ + zrxToken.address + ].add(signedOrder.makerFee.add(signedOrder.takerFee)); + }); + await exchangeWrapper.marketBuyOrdersAsync(signedOrders, takerAddress, { + makerAssetFillAmount, + }); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + + it('should throw when a signedOrder does not use the same makerAssetAddress', async () => { + signedOrders = [ + await orderFactory.newSignedOrderAsync(), + await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(zrxToken.address), + }), + await orderFactory.newSignedOrderAsync(), + ]; + + return expectTransactionFailedAsync( + exchangeWrapper.marketBuyOrdersAsync(signedOrders, takerAddress, { + makerAssetFillAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(1000), 18), + }), + RevertReason.InvalidOrderSignature, + ); + }); + }); + + describe('marketBuyOrdersNoThrow', () => { + const reentrancyTest = (functionNames: string[]) => { + _.forEach(functionNames, async (functionName: string, functionId: number) => { + const description = `should not allow marketBuyOrdersNoThrow to reenter the Exchange contract via ${functionName}`; + it(description, async () => { + const signedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(reentrantErc20Token.address), + }); + await web3Wrapper.awaitTransactionSuccessAsync( + await reentrantErc20Token.setCurrentFunction.sendTransactionAsync(functionId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await exchangeWrapper.marketBuyOrdersNoThrowAsync([signedOrder], takerAddress, { + makerAssetFillAmount: signedOrder.makerAssetAmount, + }); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(erc20Balances).to.deep.equal(newBalances); + }); + }); + }; + describe('marketBuyOrdersNoThrow reentrancy tests', () => reentrancyTest(constants.FUNCTIONS_WITH_MUTEX)); + + it('should stop when the entire makerAssetFillAmount is filled', async () => { + const makerAssetFillAmount = signedOrders[0].makerAssetAmount.plus( + signedOrders[1].makerAssetAmount.div(2), + ); + await exchangeWrapper.marketBuyOrdersNoThrowAsync(signedOrders, takerAddress, { + makerAssetFillAmount, + // HACK(albrow): We need to hardcode the gas estimate here because + // the Geth gas estimator doesn't work with the way we use + // delegatecall and swallow errors. + gas: 600000, + }); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const makerAmountBought = signedOrders[0].takerAssetAmount.add( + signedOrders[1].takerAssetAmount.dividedToIntegerBy(2), + ); + const makerFee = signedOrders[0].makerFee.add(signedOrders[1].makerFee.dividedToIntegerBy(2)); + const takerFee = signedOrders[0].takerFee.add(signedOrders[1].takerFee.dividedToIntegerBy(2)); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultTakerAssetAddress].add(makerAmountBought), + ); + expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][zrxToken.address].minus(makerFee), + ); + expect(newBalances[takerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultTakerAssetAddress].minus(makerAmountBought), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].add(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[takerAddress][zrxToken.address].minus(takerFee), + ); + expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[feeRecipientAddress][zrxToken.address].add(makerFee.add(takerFee)), + ); + }); + + it('should fill all signedOrders if cannot fill entire makerAssetFillAmount', async () => { + const makerAssetFillAmount = Web3Wrapper.toBaseUnitAmount(new BigNumber(100000), 18); + _.forEach(signedOrders, signedOrder => { + erc20Balances[makerAddress][defaultMakerAssetAddress] = erc20Balances[makerAddress][ + defaultMakerAssetAddress + ].minus(signedOrder.makerAssetAmount); + erc20Balances[makerAddress][defaultTakerAssetAddress] = erc20Balances[makerAddress][ + defaultTakerAssetAddress + ].add(signedOrder.takerAssetAmount); + erc20Balances[makerAddress][zrxToken.address] = erc20Balances[makerAddress][zrxToken.address].minus( + signedOrder.makerFee, + ); + erc20Balances[takerAddress][defaultMakerAssetAddress] = erc20Balances[takerAddress][ + defaultMakerAssetAddress + ].add(signedOrder.makerAssetAmount); + erc20Balances[takerAddress][defaultTakerAssetAddress] = erc20Balances[takerAddress][ + defaultTakerAssetAddress + ].minus(signedOrder.takerAssetAmount); + erc20Balances[takerAddress][zrxToken.address] = erc20Balances[takerAddress][zrxToken.address].minus( + signedOrder.takerFee, + ); + erc20Balances[feeRecipientAddress][zrxToken.address] = erc20Balances[feeRecipientAddress][ + zrxToken.address + ].add(signedOrder.makerFee.add(signedOrder.takerFee)); + }); + await exchangeWrapper.marketBuyOrdersNoThrowAsync(signedOrders, takerAddress, { + makerAssetFillAmount, + // HACK(albrow): We need to hardcode the gas estimate here because + // the Geth gas estimator doesn't work with the way we use + // delegatecall and swallow errors. + gas: 600000, + }); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + + it('should not fill a signedOrder that does not use the same makerAssetAddress', async () => { + signedOrders = [ + await orderFactory.newSignedOrderAsync(), + await orderFactory.newSignedOrderAsync(), + await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(zrxToken.address), + }), + ]; + + const makerAssetFillAmount = Web3Wrapper.toBaseUnitAmount(new BigNumber(100000), 18); + const filledSignedOrders = signedOrders.slice(0, -1); + _.forEach(filledSignedOrders, signedOrder => { + erc20Balances[makerAddress][defaultMakerAssetAddress] = erc20Balances[makerAddress][ + defaultMakerAssetAddress + ].minus(signedOrder.makerAssetAmount); + erc20Balances[makerAddress][defaultTakerAssetAddress] = erc20Balances[makerAddress][ + defaultTakerAssetAddress + ].add(signedOrder.takerAssetAmount); + erc20Balances[makerAddress][zrxToken.address] = erc20Balances[makerAddress][zrxToken.address].minus( + signedOrder.makerFee, + ); + erc20Balances[takerAddress][defaultMakerAssetAddress] = erc20Balances[takerAddress][ + defaultMakerAssetAddress + ].add(signedOrder.makerAssetAmount); + erc20Balances[takerAddress][defaultTakerAssetAddress] = erc20Balances[takerAddress][ + defaultTakerAssetAddress + ].minus(signedOrder.takerAssetAmount); + erc20Balances[takerAddress][zrxToken.address] = erc20Balances[takerAddress][zrxToken.address].minus( + signedOrder.takerFee, + ); + erc20Balances[feeRecipientAddress][zrxToken.address] = erc20Balances[feeRecipientAddress][ + zrxToken.address + ].add(signedOrder.makerFee.add(signedOrder.takerFee)); + }); + await exchangeWrapper.marketBuyOrdersNoThrowAsync(signedOrders, takerAddress, { + makerAssetFillAmount, + // HACK(albrow): We need to hardcode the gas estimate here because + // the Geth gas estimator doesn't work with the way we use + // delegatecall and swallow errors. + gas: 600000, + }); + + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances).to.be.deep.equal(erc20Balances); + }); + }); + + describe('batchCancelOrders', () => { + it('should be able to cancel multiple signedOrders', async () => { + const takerAssetCancelAmounts = _.map(signedOrders, signedOrder => signedOrder.takerAssetAmount); + await exchangeWrapper.batchCancelOrdersAsync(signedOrders, makerAddress); + + await exchangeWrapper.batchFillOrdersNoThrowAsync(signedOrders, takerAddress, { + takerAssetFillAmounts: takerAssetCancelAmounts, + }); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(erc20Balances).to.be.deep.equal(newBalances); + }); + }); + + describe('getOrdersInfo', () => { + beforeEach(async () => { + signedOrders = [ + await orderFactory.newSignedOrderAsync(), + await orderFactory.newSignedOrderAsync(), + await orderFactory.newSignedOrderAsync(), + ]; + }); + it('should get the correct information for multiple unfilled orders', async () => { + const ordersInfo = await exchangeWrapper.getOrdersInfoAsync(signedOrders); + expect(ordersInfo.length).to.be.equal(3); + _.forEach(signedOrders, (signedOrder, index) => { + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + const expectedTakerAssetFilledAmount = new BigNumber(0); + const expectedOrderStatus = OrderStatus.FILLABLE; + const orderInfo = ordersInfo[index]; + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); + expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); + }); + }); + it('should get the correct information for multiple partially filled orders', async () => { + const takerAssetFillAmounts = _.map(signedOrders, signedOrder => signedOrder.takerAssetAmount.div(2)); + await exchangeWrapper.batchFillOrdersAsync(signedOrders, takerAddress, { takerAssetFillAmounts }); + const ordersInfo = await exchangeWrapper.getOrdersInfoAsync(signedOrders); + expect(ordersInfo.length).to.be.equal(3); + _.forEach(signedOrders, (signedOrder, index) => { + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + const expectedTakerAssetFilledAmount = signedOrder.takerAssetAmount.div(2); + const expectedOrderStatus = OrderStatus.FILLABLE; + const orderInfo = ordersInfo[index]; + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); + expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); + }); + }); + it('should get the correct information for multiple fully filled orders', async () => { + await exchangeWrapper.batchFillOrdersAsync(signedOrders, takerAddress); + const ordersInfo = await exchangeWrapper.getOrdersInfoAsync(signedOrders); + expect(ordersInfo.length).to.be.equal(3); + _.forEach(signedOrders, (signedOrder, index) => { + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + const expectedTakerAssetFilledAmount = signedOrder.takerAssetAmount; + const expectedOrderStatus = OrderStatus.FULLY_FILLED; + const orderInfo = ordersInfo[index]; + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); + expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); + }); + }); + it('should get the correct information for multiple cancelled and unfilled orders', async () => { + await exchangeWrapper.batchCancelOrdersAsync(signedOrders, makerAddress); + const ordersInfo = await exchangeWrapper.getOrdersInfoAsync(signedOrders); + expect(ordersInfo.length).to.be.equal(3); + _.forEach(signedOrders, (signedOrder, index) => { + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + const expectedTakerAssetFilledAmount = new BigNumber(0); + const expectedOrderStatus = OrderStatus.CANCELLED; + const orderInfo = ordersInfo[index]; + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); + expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); + }); + }); + it('should get the correct information for multiple cancelled and partially filled orders', async () => { + const takerAssetFillAmounts = _.map(signedOrders, signedOrder => signedOrder.takerAssetAmount.div(2)); + await exchangeWrapper.batchFillOrdersAsync(signedOrders, takerAddress, { takerAssetFillAmounts }); + await exchangeWrapper.batchCancelOrdersAsync(signedOrders, makerAddress); + const ordersInfo = await exchangeWrapper.getOrdersInfoAsync(signedOrders); + expect(ordersInfo.length).to.be.equal(3); + _.forEach(signedOrders, (signedOrder, index) => { + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + const expectedTakerAssetFilledAmount = signedOrder.takerAssetAmount.div(2); + const expectedOrderStatus = OrderStatus.CANCELLED; + const orderInfo = ordersInfo[index]; + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); + expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); + }); + }); + it('should get the correct information for multiple expired and unfilled orders', async () => { + const currentTimestamp = await getLatestBlockTimestampAsync(); + const timeUntilExpiration = signedOrders[0].expirationTimeSeconds.minus(currentTimestamp).toNumber(); + await increaseTimeAndMineBlockAsync(timeUntilExpiration); + const ordersInfo = await exchangeWrapper.getOrdersInfoAsync(signedOrders); + expect(ordersInfo.length).to.be.equal(3); + _.forEach(signedOrders, (signedOrder, index) => { + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + const expectedTakerAssetFilledAmount = new BigNumber(0); + const expectedOrderStatus = OrderStatus.EXPIRED; + const orderInfo = ordersInfo[index]; + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); + expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); + }); + }); + it('should get the correct information for multiple expired and partially filled orders', async () => { + const takerAssetFillAmounts = _.map(signedOrders, signedOrder => signedOrder.takerAssetAmount.div(2)); + await exchangeWrapper.batchFillOrdersAsync(signedOrders, takerAddress, { takerAssetFillAmounts }); + const currentTimestamp = await getLatestBlockTimestampAsync(); + const timeUntilExpiration = signedOrders[0].expirationTimeSeconds.minus(currentTimestamp).toNumber(); + await increaseTimeAndMineBlockAsync(timeUntilExpiration); + const ordersInfo = await exchangeWrapper.getOrdersInfoAsync(signedOrders); + expect(ordersInfo.length).to.be.equal(3); + _.forEach(signedOrders, (signedOrder, index) => { + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + const expectedTakerAssetFilledAmount = signedOrder.takerAssetAmount.div(2); + const expectedOrderStatus = OrderStatus.EXPIRED; + const orderInfo = ordersInfo[index]; + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); + expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); + }); + }); + it('should get the correct information for a mix of unfilled, partially filled, fully filled, cancelled, and expired orders', async () => { + const unfilledOrder = await orderFactory.newSignedOrderAsync(); + const partiallyFilledOrder = await orderFactory.newSignedOrderAsync(); + await exchangeWrapper.fillOrderAsync(partiallyFilledOrder, takerAddress, { + takerAssetFillAmount: partiallyFilledOrder.takerAssetAmount.div(2), + }); + const fullyFilledOrder = await orderFactory.newSignedOrderAsync(); + await exchangeWrapper.fillOrderAsync(fullyFilledOrder, takerAddress); + const cancelledOrder = await orderFactory.newSignedOrderAsync(); + await exchangeWrapper.cancelOrderAsync(cancelledOrder, makerAddress); + const currentTimestamp = await getLatestBlockTimestampAsync(); + const expiredOrder = await orderFactory.newSignedOrderAsync({ + expirationTimeSeconds: new BigNumber(currentTimestamp), + }); + signedOrders = [unfilledOrder, partiallyFilledOrder, fullyFilledOrder, cancelledOrder, expiredOrder]; + const ordersInfo = await exchangeWrapper.getOrdersInfoAsync(signedOrders); + expect(ordersInfo.length).to.be.equal(5); + + const expectedUnfilledOrderHash = orderHashUtils.getOrderHashHex(unfilledOrder); + const expectedUnfilledTakerAssetFilledAmount = new BigNumber(0); + const expectedUnfilledOrderStatus = OrderStatus.FILLABLE; + const unfilledOrderInfo = ordersInfo[0]; + expect(unfilledOrderInfo.orderHash).to.be.equal(expectedUnfilledOrderHash); + expect(unfilledOrderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal( + expectedUnfilledTakerAssetFilledAmount, + ); + expect(unfilledOrderInfo.orderStatus).to.be.equal(expectedUnfilledOrderStatus); + + const expectedPartialOrderHash = orderHashUtils.getOrderHashHex(partiallyFilledOrder); + const expectedPartialTakerAssetFilledAmount = partiallyFilledOrder.takerAssetAmount.div(2); + const expectedPartialOrderStatus = OrderStatus.FILLABLE; + const partialOrderInfo = ordersInfo[1]; + expect(partialOrderInfo.orderHash).to.be.equal(expectedPartialOrderHash); + expect(partialOrderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal( + expectedPartialTakerAssetFilledAmount, + ); + expect(partialOrderInfo.orderStatus).to.be.equal(expectedPartialOrderStatus); + + const expectedFilledOrderHash = orderHashUtils.getOrderHashHex(fullyFilledOrder); + const expectedFilledTakerAssetFilledAmount = fullyFilledOrder.takerAssetAmount; + const expectedFilledOrderStatus = OrderStatus.FULLY_FILLED; + const filledOrderInfo = ordersInfo[2]; + expect(filledOrderInfo.orderHash).to.be.equal(expectedFilledOrderHash); + expect(filledOrderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal( + expectedFilledTakerAssetFilledAmount, + ); + expect(filledOrderInfo.orderStatus).to.be.equal(expectedFilledOrderStatus); + + const expectedCancelledOrderHash = orderHashUtils.getOrderHashHex(cancelledOrder); + const expectedCancelledTakerAssetFilledAmount = new BigNumber(0); + const expectedCancelledOrderStatus = OrderStatus.CANCELLED; + const cancelledOrderInfo = ordersInfo[3]; + expect(cancelledOrderInfo.orderHash).to.be.equal(expectedCancelledOrderHash); + expect(cancelledOrderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal( + expectedCancelledTakerAssetFilledAmount, + ); + expect(cancelledOrderInfo.orderStatus).to.be.equal(expectedCancelledOrderStatus); + + const expectedExpiredOrderHash = orderHashUtils.getOrderHashHex(expiredOrder); + const expectedExpiredTakerAssetFilledAmount = new BigNumber(0); + const expectedExpiredOrderStatus = OrderStatus.EXPIRED; + const expiredOrderInfo = ordersInfo[4]; + expect(expiredOrderInfo.orderHash).to.be.equal(expectedExpiredOrderHash); + expect(expiredOrderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal( + expectedExpiredTakerAssetFilledAmount, + ); + expect(expiredOrderInfo.orderStatus).to.be.equal(expectedExpiredOrderStatus); + }); + }); + }); +}); // tslint:disable-line:max-file-line-count diff --git a/contracts/core/test/extensions/dutch_auction.ts b/contracts/core/test/extensions/dutch_auction.ts new file mode 100644 index 000000000..54e6092d7 --- /dev/null +++ b/contracts/core/test/extensions/dutch_auction.ts @@ -0,0 +1,452 @@ +import { + chaiSetup, + constants, + ContractName, + ERC20BalancesByOwner, + expectTransactionFailedAsync, + getLatestBlockTimestampAsync, + OrderFactory, + provider, + txDefaults, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { assetDataUtils, generatePseudoRandomSalt } from '@0x/order-utils'; +import { RevertReason, SignedOrder } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; +import * as chai from 'chai'; +import ethAbi = require('ethereumjs-abi'); +import * as ethUtil from 'ethereumjs-util'; +import * as _ from 'lodash'; + +import { DummyERC20TokenContract } from '../../generated-wrappers/dummy_erc20_token'; +import { DummyERC721TokenContract } from '../../generated-wrappers/dummy_erc721_token'; +import { DutchAuctionContract } from '../../generated-wrappers/dutch_auction'; +import { ExchangeContract } from '../../generated-wrappers/exchange'; +import { WETH9Contract } from '../../generated-wrappers/weth9'; +import { artifacts } from '../../src/artifacts'; +import { ERC20Wrapper } from '../utils/erc20_wrapper'; +import { ERC721Wrapper } from '../utils/erc721_wrapper'; +import { ExchangeWrapper } from '../utils/exchange_wrapper'; + +chaiSetup.configure(); +const expect = chai.expect; +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); +const DECIMALS_DEFAULT = 18; + +describe(ContractName.DutchAuction, () => { + let makerAddress: string; + let owner: string; + let takerAddress: string; + let feeRecipientAddress: string; + let defaultMakerAssetAddress: string; + + let zrxToken: DummyERC20TokenContract; + let erc20TokenA: DummyERC20TokenContract; + let erc721Token: DummyERC721TokenContract; + let dutchAuctionContract: DutchAuctionContract; + let wethContract: WETH9Contract; + + let sellerOrderFactory: OrderFactory; + let buyerOrderFactory: OrderFactory; + let erc20Wrapper: ERC20Wrapper; + let erc20Balances: ERC20BalancesByOwner; + let currentBlockTimestamp: number; + let auctionBeginTimeSeconds: BigNumber; + let auctionEndTimeSeconds: BigNumber; + let auctionBeginAmount: BigNumber; + let auctionEndAmount: BigNumber; + let sellOrder: SignedOrder; + let buyOrder: SignedOrder; + let erc721MakerAssetIds: BigNumber[]; + const tenMinutesInSeconds = 10 * 60; + + function extendMakerAssetData(makerAssetData: string, beginTimeSeconds: BigNumber, beginAmount: BigNumber): string { + return ethUtil.bufferToHex( + Buffer.concat([ + ethUtil.toBuffer(makerAssetData), + ethUtil.toBuffer( + (ethAbi as any).rawEncode( + ['uint256', 'uint256'], + [beginTimeSeconds.toString(), beginAmount.toString()], + ), + ), + ]), + ); + } + + before(async () => { + await blockchainLifecycle.startAsync(); + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + const usedAddresses = ([owner, makerAddress, takerAddress, feeRecipientAddress] = accounts); + + erc20Wrapper = new ERC20Wrapper(provider, usedAddresses, owner); + + const numDummyErc20ToDeploy = 2; + [erc20TokenA, zrxToken] = await erc20Wrapper.deployDummyTokensAsync( + numDummyErc20ToDeploy, + constants.DUMMY_TOKEN_DECIMALS, + ); + const erc20Proxy = await erc20Wrapper.deployProxyAsync(); + await erc20Wrapper.setBalancesAndAllowancesAsync(); + + const erc721Wrapper = new ERC721Wrapper(provider, usedAddresses, owner); + [erc721Token] = await erc721Wrapper.deployDummyTokensAsync(); + const erc721Proxy = await erc721Wrapper.deployProxyAsync(); + await erc721Wrapper.setBalancesAndAllowancesAsync(); + const erc721Balances = await erc721Wrapper.getBalancesAsync(); + erc721MakerAssetIds = erc721Balances[makerAddress][erc721Token.address]; + + wethContract = await WETH9Contract.deployFrom0xArtifactAsync(artifacts.WETH9, provider, txDefaults); + erc20Wrapper.addDummyTokenContract(wethContract as any); + + const zrxAssetData = assetDataUtils.encodeERC20AssetData(zrxToken.address); + const exchangeInstance = await ExchangeContract.deployFrom0xArtifactAsync( + artifacts.Exchange, + provider, + txDefaults, + zrxAssetData, + ); + const exchangeWrapper = new ExchangeWrapper(exchangeInstance, provider); + await exchangeWrapper.registerAssetProxyAsync(erc20Proxy.address, owner); + await exchangeWrapper.registerAssetProxyAsync(erc721Proxy.address, owner); + + await erc20Proxy.addAuthorizedAddress.sendTransactionAsync(exchangeInstance.address, { + from: owner, + }); + await erc721Proxy.addAuthorizedAddress.sendTransactionAsync(exchangeInstance.address, { + from: owner, + }); + + const dutchAuctionInstance = await DutchAuctionContract.deployFrom0xArtifactAsync( + artifacts.DutchAuction, + provider, + txDefaults, + exchangeInstance.address, + ); + dutchAuctionContract = new DutchAuctionContract( + dutchAuctionInstance.abi, + dutchAuctionInstance.address, + provider, + ); + + defaultMakerAssetAddress = erc20TokenA.address; + const defaultTakerAssetAddress = wethContract.address; + + // Set up taker WETH balance and allowance + await web3Wrapper.awaitTransactionSuccessAsync( + await wethContract.deposit.sendTransactionAsync({ + from: takerAddress, + value: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), DECIMALS_DEFAULT), + }), + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await wethContract.approve.sendTransactionAsync( + erc20Proxy.address, + constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS, + { from: takerAddress }, + ), + ); + web3Wrapper.abiDecoder.addABI(exchangeInstance.abi); + web3Wrapper.abiDecoder.addABI(zrxToken.abi); + erc20Wrapper.addTokenOwnerAddress(dutchAuctionContract.address); + + currentBlockTimestamp = await getLatestBlockTimestampAsync(); + // Default auction begins 10 minutes ago + auctionBeginTimeSeconds = new BigNumber(currentBlockTimestamp).minus(tenMinutesInSeconds); + // Default auction ends 10 from now + auctionEndTimeSeconds = new BigNumber(currentBlockTimestamp).plus(tenMinutesInSeconds); + auctionBeginAmount = Web3Wrapper.toBaseUnitAmount(new BigNumber(10), DECIMALS_DEFAULT); + auctionEndAmount = Web3Wrapper.toBaseUnitAmount(new BigNumber(1), DECIMALS_DEFAULT); + + // Default sell order and buy order are exact mirrors + const sellerDefaultOrderParams = { + salt: generatePseudoRandomSalt(), + exchangeAddress: exchangeInstance.address, + makerAddress, + feeRecipientAddress, + // taker address or sender address should be set to the ducth auction contract + takerAddress: dutchAuctionContract.address, + makerAssetData: extendMakerAssetData( + assetDataUtils.encodeERC20AssetData(defaultMakerAssetAddress), + auctionBeginTimeSeconds, + auctionBeginAmount, + ), + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultTakerAssetAddress), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(200), DECIMALS_DEFAULT), + takerAssetAmount: auctionEndAmount, + expirationTimeSeconds: auctionEndTimeSeconds, + makerFee: constants.ZERO_AMOUNT, + takerFee: constants.ZERO_AMOUNT, + }; + // Default buy order is for the auction begin price + const buyerDefaultOrderParams = { + ...sellerDefaultOrderParams, + makerAddress: takerAddress, + makerAssetData: sellerDefaultOrderParams.takerAssetData, + takerAssetData: sellerDefaultOrderParams.makerAssetData, + makerAssetAmount: auctionBeginAmount, + takerAssetAmount: sellerDefaultOrderParams.makerAssetAmount, + }; + const makerPrivateKey = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(makerAddress)]; + const takerPrivateKey = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(takerAddress)]; + sellerOrderFactory = new OrderFactory(makerPrivateKey, sellerDefaultOrderParams); + buyerOrderFactory = new OrderFactory(takerPrivateKey, buyerDefaultOrderParams); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + erc20Balances = await erc20Wrapper.getBalancesAsync(); + sellOrder = await sellerOrderFactory.newSignedOrderAsync(); + buyOrder = await buyerOrderFactory.newSignedOrderAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + describe('matchOrders', () => { + it('should be worth the begin price at the begining of the auction', async () => { + auctionBeginTimeSeconds = new BigNumber(currentBlockTimestamp + 2); + sellOrder = await sellerOrderFactory.newSignedOrderAsync({ + makerAssetData: extendMakerAssetData( + assetDataUtils.encodeERC20AssetData(defaultMakerAssetAddress), + auctionBeginTimeSeconds, + auctionBeginAmount, + ), + }); + const auctionDetails = await dutchAuctionContract.getAuctionDetails.callAsync(sellOrder); + expect(auctionDetails.currentAmount).to.be.bignumber.equal(auctionBeginAmount); + expect(auctionDetails.beginAmount).to.be.bignumber.equal(auctionBeginAmount); + }); + it('should be be worth the end price at the end of the auction', async () => { + auctionBeginTimeSeconds = new BigNumber(currentBlockTimestamp - tenMinutesInSeconds * 2); + auctionEndTimeSeconds = new BigNumber(currentBlockTimestamp - tenMinutesInSeconds); + sellOrder = await sellerOrderFactory.newSignedOrderAsync({ + makerAssetData: extendMakerAssetData( + assetDataUtils.encodeERC20AssetData(defaultMakerAssetAddress), + auctionBeginTimeSeconds, + auctionBeginAmount, + ), + expirationTimeSeconds: auctionEndTimeSeconds, + }); + const auctionDetails = await dutchAuctionContract.getAuctionDetails.callAsync(sellOrder); + expect(auctionDetails.currentAmount).to.be.bignumber.equal(auctionEndAmount); + expect(auctionDetails.beginAmount).to.be.bignumber.equal(auctionBeginAmount); + }); + it('should match orders at current amount and send excess to buyer', async () => { + const beforeAuctionDetails = await dutchAuctionContract.getAuctionDetails.callAsync(sellOrder); + buyOrder = await buyerOrderFactory.newSignedOrderAsync({ + makerAssetAmount: beforeAuctionDetails.currentAmount.times(2), + }); + await web3Wrapper.awaitTransactionSuccessAsync( + await dutchAuctionContract.matchOrders.sendTransactionAsync( + buyOrder, + sellOrder, + buyOrder.signature, + sellOrder.signature, + { + from: takerAddress, + }, + ), + ); + const afterAuctionDetails = await dutchAuctionContract.getAuctionDetails.callAsync(sellOrder); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances[dutchAuctionContract.address][wethContract.address]).to.be.bignumber.equal( + constants.ZERO_AMOUNT, + ); + // HACK gte used here due to a bug in ganache where the timestamp can change + // between multiple calls to the same block. Which can move the amount in our case + // ref: https://github.com/trufflesuite/ganache-core/issues/111 + expect(newBalances[makerAddress][wethContract.address]).to.be.bignumber.gte( + erc20Balances[makerAddress][wethContract.address].plus(afterAuctionDetails.currentAmount), + ); + expect(newBalances[takerAddress][wethContract.address]).to.be.bignumber.gte( + erc20Balances[takerAddress][wethContract.address].minus(beforeAuctionDetails.currentAmount), + ); + }); + it('maker fees on sellOrder are paid to the fee receipient', async () => { + sellOrder = await sellerOrderFactory.newSignedOrderAsync({ + makerFee: new BigNumber(1), + }); + const txHash = await dutchAuctionContract.matchOrders.sendTransactionAsync( + buyOrder, + sellOrder, + buyOrder.signature, + sellOrder.signature, + { + from: takerAddress, + }, + ); + await web3Wrapper.awaitTransactionSuccessAsync(txHash); + const afterAuctionDetails = await dutchAuctionContract.getAuctionDetails.callAsync(sellOrder); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances[makerAddress][wethContract.address]).to.be.bignumber.gte( + erc20Balances[makerAddress][wethContract.address].plus(afterAuctionDetails.currentAmount), + ); + expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[feeRecipientAddress][zrxToken.address].plus(sellOrder.makerFee), + ); + }); + it('maker fees on buyOrder are paid to the fee receipient', async () => { + buyOrder = await buyerOrderFactory.newSignedOrderAsync({ + makerFee: new BigNumber(1), + }); + const txHash = await dutchAuctionContract.matchOrders.sendTransactionAsync( + buyOrder, + sellOrder, + buyOrder.signature, + sellOrder.signature, + { + from: takerAddress, + }, + ); + await web3Wrapper.awaitTransactionSuccessAsync(txHash); + const newBalances = await erc20Wrapper.getBalancesAsync(); + const afterAuctionDetails = await dutchAuctionContract.getAuctionDetails.callAsync(sellOrder); + expect(newBalances[makerAddress][wethContract.address]).to.be.bignumber.gte( + erc20Balances[makerAddress][wethContract.address].plus(afterAuctionDetails.currentAmount), + ); + expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[feeRecipientAddress][zrxToken.address].plus(buyOrder.makerFee), + ); + }); + it('should revert when auction expires', async () => { + auctionBeginTimeSeconds = new BigNumber(currentBlockTimestamp - tenMinutesInSeconds * 2); + auctionEndTimeSeconds = new BigNumber(currentBlockTimestamp - tenMinutesInSeconds); + sellOrder = await sellerOrderFactory.newSignedOrderAsync({ + expirationTimeSeconds: auctionEndTimeSeconds, + makerAssetData: extendMakerAssetData( + assetDataUtils.encodeERC20AssetData(defaultMakerAssetAddress), + auctionBeginTimeSeconds, + auctionBeginAmount, + ), + }); + return expectTransactionFailedAsync( + dutchAuctionContract.matchOrders.sendTransactionAsync( + buyOrder, + sellOrder, + buyOrder.signature, + sellOrder.signature, + { + from: takerAddress, + }, + ), + RevertReason.AuctionExpired, + ); + }); + it('cannot be filled for less than the current price', async () => { + buyOrder = await buyerOrderFactory.newSignedOrderAsync({ + makerAssetAmount: sellOrder.takerAssetAmount, + }); + return expectTransactionFailedAsync( + dutchAuctionContract.matchOrders.sendTransactionAsync( + buyOrder, + sellOrder, + buyOrder.signature, + sellOrder.signature, + { + from: takerAddress, + }, + ), + RevertReason.AuctionInvalidAmount, + ); + }); + it('auction begin amount must be higher than final amount ', async () => { + sellOrder = await sellerOrderFactory.newSignedOrderAsync({ + takerAssetAmount: auctionBeginAmount.plus(1), + }); + return expectTransactionFailedAsync( + dutchAuctionContract.matchOrders.sendTransactionAsync( + buyOrder, + sellOrder, + buyOrder.signature, + sellOrder.signature, + { + from: takerAddress, + }, + ), + RevertReason.AuctionInvalidAmount, + ); + }); + it('begin time is less than end time', async () => { + auctionBeginTimeSeconds = new BigNumber(auctionEndTimeSeconds).plus(tenMinutesInSeconds); + sellOrder = await sellerOrderFactory.newSignedOrderAsync({ + expirationTimeSeconds: auctionEndTimeSeconds, + makerAssetData: extendMakerAssetData( + assetDataUtils.encodeERC20AssetData(defaultMakerAssetAddress), + auctionBeginTimeSeconds, + auctionBeginAmount, + ), + }); + return expectTransactionFailedAsync( + dutchAuctionContract.matchOrders.sendTransactionAsync( + buyOrder, + sellOrder, + buyOrder.signature, + sellOrder.signature, + { + from: takerAddress, + }, + ), + RevertReason.AuctionInvalidBeginTime, + ); + }); + it('asset data contains auction parameters', async () => { + sellOrder = await sellerOrderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(defaultMakerAssetAddress), + }); + return expectTransactionFailedAsync( + dutchAuctionContract.matchOrders.sendTransactionAsync( + buyOrder, + sellOrder, + buyOrder.signature, + sellOrder.signature, + { + from: takerAddress, + }, + ), + RevertReason.InvalidAssetData, + ); + }); + describe('ERC721', () => { + it('should match orders when ERC721', async () => { + const makerAssetId = erc721MakerAssetIds[0]; + sellOrder = await sellerOrderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber(1), + makerAssetData: extendMakerAssetData( + assetDataUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), + auctionBeginTimeSeconds, + auctionBeginAmount, + ), + }); + buyOrder = await buyerOrderFactory.newSignedOrderAsync({ + takerAssetAmount: new BigNumber(1), + takerAssetData: sellOrder.makerAssetData, + }); + await web3Wrapper.awaitTransactionSuccessAsync( + await dutchAuctionContract.matchOrders.sendTransactionAsync( + buyOrder, + sellOrder, + buyOrder.signature, + sellOrder.signature, + { + from: takerAddress, + }, + ), + ); + const afterAuctionDetails = await dutchAuctionContract.getAuctionDetails.callAsync(sellOrder); + const newBalances = await erc20Wrapper.getBalancesAsync(); + // HACK gte used here due to a bug in ganache where the timestamp can change + // between multiple calls to the same block. Which can move the amount in our case + // ref: https://github.com/trufflesuite/ganache-core/issues/111 + expect(newBalances[makerAddress][wethContract.address]).to.be.bignumber.gte( + erc20Balances[makerAddress][wethContract.address].plus(afterAuctionDetails.currentAmount), + ); + const newOwner = await erc721Token.ownerOf.callAsync(makerAssetId); + expect(newOwner).to.be.bignumber.equal(takerAddress); + }); + }); + }); +}); diff --git a/contracts/core/test/extensions/forwarder.ts b/contracts/core/test/extensions/forwarder.ts new file mode 100644 index 000000000..44ad4d6ff --- /dev/null +++ b/contracts/core/test/extensions/forwarder.ts @@ -0,0 +1,1285 @@ +import { + chaiSetup, + constants, + ContractName, + ERC20BalancesByOwner, + expectContractCreationFailedAsync, + expectTransactionFailedAsync, + OrderFactory, + provider, + sendTransactionResult, + txDefaults, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { assetDataUtils } from '@0x/order-utils'; +import { RevertReason, SignedOrder } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; +import * as chai from 'chai'; +import { TransactionReceiptWithDecodedLogs } from 'ethereum-types'; + +import { DummyERC20TokenContract } from '../../generated-wrappers/dummy_erc20_token'; +import { DummyERC721TokenContract } from '../../generated-wrappers/dummy_erc721_token'; +import { ExchangeContract } from '../../generated-wrappers/exchange'; +import { ForwarderContract } from '../../generated-wrappers/forwarder'; +import { WETH9Contract } from '../../generated-wrappers/weth9'; +import { artifacts } from '../../src/artifacts'; +import { ERC20Wrapper } from '../utils/erc20_wrapper'; +import { ERC721Wrapper } from '../utils/erc721_wrapper'; +import { ExchangeWrapper } from '../utils/exchange_wrapper'; +import { ForwarderWrapper } from '../utils/forwarder_wrapper'; + +chaiSetup.configure(); +const expect = chai.expect; +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); +const DECIMALS_DEFAULT = 18; +const MAX_WETH_FILL_PERCENTAGE = 95; + +describe(ContractName.Forwarder, () => { + let makerAddress: string; + let owner: string; + let takerAddress: string; + let feeRecipientAddress: string; + let otherAddress: string; + let defaultMakerAssetAddress: string; + let zrxAssetData: string; + let wethAssetData: string; + + let weth: DummyERC20TokenContract; + let zrxToken: DummyERC20TokenContract; + let erc20TokenA: DummyERC20TokenContract; + let erc721Token: DummyERC721TokenContract; + let forwarderContract: ForwarderContract; + let wethContract: WETH9Contract; + let forwarderWrapper: ForwarderWrapper; + let exchangeWrapper: ExchangeWrapper; + + let orderWithoutFee: SignedOrder; + let orderWithFee: SignedOrder; + let feeOrder: SignedOrder; + let orderFactory: OrderFactory; + let erc20Wrapper: ERC20Wrapper; + let erc20Balances: ERC20BalancesByOwner; + let tx: TransactionReceiptWithDecodedLogs; + + let erc721MakerAssetIds: BigNumber[]; + let takerEthBalanceBefore: BigNumber; + let feePercentage: BigNumber; + let gasPrice: BigNumber; + + before(async () => { + await blockchainLifecycle.startAsync(); + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + const usedAddresses = ([owner, makerAddress, takerAddress, feeRecipientAddress, otherAddress] = accounts); + + const txHash = await web3Wrapper.sendTransactionAsync({ from: accounts[0], to: accounts[0], value: 0 }); + const transaction = await web3Wrapper.getTransactionByHashAsync(txHash); + gasPrice = new BigNumber(transaction.gasPrice); + + const erc721Wrapper = new ERC721Wrapper(provider, usedAddresses, owner); + erc20Wrapper = new ERC20Wrapper(provider, usedAddresses, owner); + + const numDummyErc20ToDeploy = 3; + [erc20TokenA, zrxToken] = await erc20Wrapper.deployDummyTokensAsync( + numDummyErc20ToDeploy, + constants.DUMMY_TOKEN_DECIMALS, + ); + const erc20Proxy = await erc20Wrapper.deployProxyAsync(); + await erc20Wrapper.setBalancesAndAllowancesAsync(); + + [erc721Token] = await erc721Wrapper.deployDummyTokensAsync(); + const erc721Proxy = await erc721Wrapper.deployProxyAsync(); + await erc721Wrapper.setBalancesAndAllowancesAsync(); + const erc721Balances = await erc721Wrapper.getBalancesAsync(); + erc721MakerAssetIds = erc721Balances[makerAddress][erc721Token.address]; + + wethContract = await WETH9Contract.deployFrom0xArtifactAsync(artifacts.WETH9, provider, txDefaults); + weth = new DummyERC20TokenContract(wethContract.abi, wethContract.address, provider); + erc20Wrapper.addDummyTokenContract(weth); + + wethAssetData = assetDataUtils.encodeERC20AssetData(wethContract.address); + zrxAssetData = assetDataUtils.encodeERC20AssetData(zrxToken.address); + const exchangeInstance = await ExchangeContract.deployFrom0xArtifactAsync( + artifacts.Exchange, + provider, + txDefaults, + zrxAssetData, + ); + exchangeWrapper = new ExchangeWrapper(exchangeInstance, provider); + await exchangeWrapper.registerAssetProxyAsync(erc20Proxy.address, owner); + await exchangeWrapper.registerAssetProxyAsync(erc721Proxy.address, owner); + + await erc20Proxy.addAuthorizedAddress.sendTransactionAsync(exchangeInstance.address, { + from: owner, + }); + await erc721Proxy.addAuthorizedAddress.sendTransactionAsync(exchangeInstance.address, { + from: owner, + }); + + defaultMakerAssetAddress = erc20TokenA.address; + const defaultTakerAssetAddress = wethContract.address; + const defaultOrderParams = { + exchangeAddress: exchangeInstance.address, + makerAddress, + feeRecipientAddress, + makerAssetData: assetDataUtils.encodeERC20AssetData(defaultMakerAssetAddress), + takerAssetData: assetDataUtils.encodeERC20AssetData(defaultTakerAssetAddress), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(200), DECIMALS_DEFAULT), + takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), DECIMALS_DEFAULT), + makerFee: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), DECIMALS_DEFAULT), + takerFee: Web3Wrapper.toBaseUnitAmount(new BigNumber(0), DECIMALS_DEFAULT), + }; + const privateKey = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(makerAddress)]; + orderFactory = new OrderFactory(privateKey, defaultOrderParams); + + const forwarderInstance = await ForwarderContract.deployFrom0xArtifactAsync( + artifacts.Forwarder, + provider, + txDefaults, + exchangeInstance.address, + zrxAssetData, + wethAssetData, + ); + forwarderContract = new ForwarderContract(forwarderInstance.abi, forwarderInstance.address, provider); + forwarderWrapper = new ForwarderWrapper(forwarderContract, provider); + const zrxDepositAmount = Web3Wrapper.toBaseUnitAmount(new BigNumber(10000), 18); + await web3Wrapper.awaitTransactionSuccessAsync( + await zrxToken.transfer.sendTransactionAsync(forwarderContract.address, zrxDepositAmount), + ); + erc20Wrapper.addTokenOwnerAddress(forwarderInstance.address); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + erc20Balances = await erc20Wrapper.getBalancesAsync(); + takerEthBalanceBefore = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + orderWithoutFee = await orderFactory.newSignedOrderAsync(); + feeOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(zrxToken.address), + takerFee: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), DECIMALS_DEFAULT), + }); + orderWithFee = await orderFactory.newSignedOrderAsync({ + takerFee: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), DECIMALS_DEFAULT), + }); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + + describe('constructor', () => { + it('should revert if assetProxy is unregistered', async () => { + const exchangeInstance = await ExchangeContract.deployFrom0xArtifactAsync( + artifacts.Exchange, + provider, + txDefaults, + zrxAssetData, + ); + return expectContractCreationFailedAsync( + (ForwarderContract.deployFrom0xArtifactAsync( + artifacts.Forwarder, + provider, + txDefaults, + exchangeInstance.address, + zrxAssetData, + wethAssetData, + ) as any) as sendTransactionResult, + RevertReason.UnregisteredAssetProxy, + ); + }); + }); + describe('marketSellOrdersWithEth without extra fees', () => { + it('should fill a single order', async () => { + const ordersWithoutFee = [orderWithoutFee]; + const feeOrders: SignedOrder[] = []; + const ethValue = orderWithoutFee.takerAssetAmount.dividedToIntegerBy(2); + + tx = await forwarderWrapper.marketSellOrdersWithEthAsync(ordersWithoutFee, feeOrders, { + value: ethValue, + from: takerAddress, + }); + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const primaryTakerAssetFillAmount = ForwarderWrapper.getPercentageOfValue( + ethValue, + MAX_WETH_FILL_PERCENTAGE, + ); + const makerAssetFillAmount = primaryTakerAssetFillAmount + .times(orderWithoutFee.makerAssetAmount) + .dividedToIntegerBy(orderWithoutFee.takerAssetAmount); + const totalEthSpent = primaryTakerAssetFillAmount.plus(gasPrice.times(tx.gasUsed)); + + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].plus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(newBalances[forwarderContract.address][defaultMakerAssetAddress]).to.be.bignumber.equal( + constants.ZERO_AMOUNT, + ); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should fill multiple orders', async () => { + const secondOrderWithoutFee = await orderFactory.newSignedOrderAsync(); + const ordersWithoutFee = [orderWithoutFee, secondOrderWithoutFee]; + const feeOrders: SignedOrder[] = []; + const ethValue = ordersWithoutFee[0].takerAssetAmount.plus( + ordersWithoutFee[1].takerAssetAmount.dividedToIntegerBy(2), + ); + + tx = await forwarderWrapper.marketSellOrdersWithEthAsync(ordersWithoutFee, feeOrders, { + value: ethValue, + from: takerAddress, + }); + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const primaryTakerAssetFillAmount = ForwarderWrapper.getPercentageOfValue( + ethValue, + MAX_WETH_FILL_PERCENTAGE, + ); + const firstTakerAssetFillAmount = ordersWithoutFee[0].takerAssetAmount; + const secondTakerAssetFillAmount = primaryTakerAssetFillAmount.minus(firstTakerAssetFillAmount); + + const makerAssetFillAmount = ordersWithoutFee[0].makerAssetAmount.plus( + ordersWithoutFee[1].makerAssetAmount + .times(secondTakerAssetFillAmount) + .dividedToIntegerBy(ordersWithoutFee[1].takerAssetAmount), + ); + const totalEthSpent = primaryTakerAssetFillAmount.plus(gasPrice.times(tx.gasUsed)); + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].plus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(newBalances[forwarderContract.address][defaultMakerAssetAddress]).to.be.bignumber.equal( + constants.ZERO_AMOUNT, + ); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should fill the order and pay ZRX fees from a single feeOrder', async () => { + const ordersWithFee = [orderWithFee]; + const feeOrders = [feeOrder]; + const ethValue = orderWithFee.takerAssetAmount.dividedToIntegerBy(2); + + tx = await forwarderWrapper.marketSellOrdersWithEthAsync(ordersWithFee, feeOrders, { + value: ethValue, + from: takerAddress, + }); + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const primaryTakerAssetFillAmount = ForwarderWrapper.getPercentageOfValue( + ethValue, + MAX_WETH_FILL_PERCENTAGE, + ); + const makerAssetFillAmount = primaryTakerAssetFillAmount + .times(orderWithoutFee.makerAssetAmount) + .dividedToIntegerBy(orderWithoutFee.takerAssetAmount); + const feeAmount = ForwarderWrapper.getPercentageOfValue( + orderWithFee.takerFee.dividedToIntegerBy(2), + MAX_WETH_FILL_PERCENTAGE, + ); + const wethSpentOnFeeOrders = ForwarderWrapper.getWethForFeeOrders(feeAmount, feeOrders); + const totalEthSpent = primaryTakerAssetFillAmount + .plus(wethSpentOnFeeOrders) + .plus(gasPrice.times(tx.gasUsed)); + + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].plus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount).plus(wethSpentOnFeeOrders), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(newBalances[forwarderContract.address][defaultMakerAssetAddress]).to.be.bignumber.equal( + constants.ZERO_AMOUNT, + ); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should fill the orders and pay ZRX from multiple feeOrders', async () => { + const ordersWithFee = [orderWithFee]; + const ethValue = orderWithFee.takerAssetAmount; + const makerAssetData = assetDataUtils.encodeERC20AssetData(zrxToken.address); + const makerAssetAmount = orderWithFee.takerFee.dividedToIntegerBy(2); + const takerAssetAmount = feeOrder.takerAssetAmount + .times(makerAssetAmount) + .dividedToIntegerBy(feeOrder.makerAssetAmount); + + const firstFeeOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData, + makerAssetAmount, + takerAssetAmount, + }); + const secondFeeOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData, + makerAssetAmount, + takerAssetAmount, + }); + const feeOrders = [firstFeeOrder, secondFeeOrder]; + + tx = await forwarderWrapper.marketSellOrdersWithEthAsync(ordersWithFee, feeOrders, { + value: ethValue, + from: takerAddress, + }); + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const primaryTakerAssetFillAmount = ForwarderWrapper.getPercentageOfValue( + ethValue, + MAX_WETH_FILL_PERCENTAGE, + ); + const makerAssetFillAmount = primaryTakerAssetFillAmount + .times(orderWithoutFee.makerAssetAmount) + .dividedToIntegerBy(orderWithoutFee.takerAssetAmount); + const feeAmount = ForwarderWrapper.getPercentageOfValue(orderWithFee.takerFee, MAX_WETH_FILL_PERCENTAGE); + const wethSpentOnFeeOrders = ForwarderWrapper.getWethForFeeOrders(feeAmount, feeOrders); + const totalEthSpent = primaryTakerAssetFillAmount + .plus(wethSpentOnFeeOrders) + .plus(gasPrice.times(tx.gasUsed)); + + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].plus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount).plus(wethSpentOnFeeOrders), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(newBalances[forwarderContract.address][defaultMakerAssetAddress]).to.be.bignumber.equal( + constants.ZERO_AMOUNT, + ); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should fill the order when token is ZRX with fees', async () => { + orderWithFee = await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(zrxToken.address), + takerFee: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), DECIMALS_DEFAULT), + }); + const ordersWithFee = [orderWithFee]; + const feeOrders: SignedOrder[] = []; + const ethValue = orderWithFee.takerAssetAmount.dividedToIntegerBy(2); + + tx = await forwarderWrapper.marketSellOrdersWithEthAsync(ordersWithFee, feeOrders, { + value: ethValue, + from: takerAddress, + }); + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const makerAssetFillAmount = orderWithFee.makerAssetAmount.dividedToIntegerBy(2); + const totalEthSpent = ethValue.plus(gasPrice.times(tx.gasUsed)); + const takerFeePaid = orderWithFee.takerFee.dividedToIntegerBy(2); + const makerFeePaid = orderWithFee.makerFee.dividedToIntegerBy(2); + + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][zrxToken.address].minus(makerAssetFillAmount).minus(makerFeePaid), + ); + expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[takerAddress][zrxToken.address].plus(makerAssetFillAmount).minus(takerFeePaid), + ); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(ethValue), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(newBalances[forwarderContract.address][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[forwarderContract.address][zrxToken.address], + ); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should refund remaining ETH if amount is greater than takerAssetAmount', async () => { + const ordersWithoutFee = [orderWithoutFee]; + const feeOrders: SignedOrder[] = []; + const ethValue = orderWithoutFee.takerAssetAmount.times(2); + + tx = await forwarderWrapper.marketSellOrdersWithEthAsync(ordersWithoutFee, feeOrders, { + value: ethValue, + from: takerAddress, + }); + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const totalEthSpent = orderWithoutFee.takerAssetAmount.plus(gasPrice.times(tx.gasUsed)); + + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + }); + it('should revert if ZRX cannot be fully repurchased', async () => { + orderWithFee = await orderFactory.newSignedOrderAsync({ + takerFee: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), DECIMALS_DEFAULT), + }); + const ordersWithFee = [orderWithFee]; + feeOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(zrxToken.address), + makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), DECIMALS_DEFAULT), + }); + const feeOrders = [feeOrder]; + const ethValue = orderWithFee.takerAssetAmount; + return expectTransactionFailedAsync( + forwarderWrapper.marketSellOrdersWithEthAsync(ordersWithFee, feeOrders, { + value: ethValue, + from: takerAddress, + }), + RevertReason.CompleteFillFailed, + ); + }); + it('should not fill orders with different makerAssetData than the first order', async () => { + const makerAssetId = erc721MakerAssetIds[0]; + const erc721SignedOrder = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber(1), + makerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), + }); + const erc20SignedOrder = await orderFactory.newSignedOrderAsync(); + const ordersWithoutFee = [erc20SignedOrder, erc721SignedOrder]; + const feeOrders: SignedOrder[] = []; + const ethValue = erc20SignedOrder.takerAssetAmount.plus(erc721SignedOrder.takerAssetAmount); + + tx = await forwarderWrapper.marketSellOrdersWithEthAsync(ordersWithoutFee, feeOrders, { + value: ethValue, + from: takerAddress, + }); + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const totalEthSpent = erc20SignedOrder.takerAssetAmount.plus(gasPrice.times(tx.gasUsed)); + + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + }); + }); + describe('marketSellOrdersWithEth with extra fees', () => { + it('should fill the order and send fee to feeRecipient', async () => { + const ordersWithoutFee = [orderWithoutFee]; + const feeOrders: SignedOrder[] = []; + const ethValue = orderWithoutFee.takerAssetAmount.div(2); + + const baseFeePercentage = 2; + feePercentage = ForwarderWrapper.getPercentageOfValue(constants.PERCENTAGE_DENOMINATOR, baseFeePercentage); + const feeRecipientEthBalanceBefore = await web3Wrapper.getBalanceInWeiAsync(feeRecipientAddress); + tx = await forwarderWrapper.marketSellOrdersWithEthAsync( + ordersWithoutFee, + feeOrders, + { + value: ethValue, + from: takerAddress, + }, + { feePercentage, feeRecipient: feeRecipientAddress }, + ); + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const feeRecipientEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(feeRecipientAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const primaryTakerAssetFillAmount = ForwarderWrapper.getPercentageOfValue( + ethValue, + MAX_WETH_FILL_PERCENTAGE, + ); + const makerAssetFillAmount = primaryTakerAssetFillAmount + .times(orderWithoutFee.makerAssetAmount) + .dividedToIntegerBy(orderWithoutFee.takerAssetAmount); + const ethSpentOnFee = ForwarderWrapper.getPercentageOfValue(primaryTakerAssetFillAmount, baseFeePercentage); + const totalEthSpent = primaryTakerAssetFillAmount.plus(ethSpentOnFee).plus(gasPrice.times(tx.gasUsed)); + + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].plus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(newBalances[forwarderContract.address][defaultMakerAssetAddress]).to.be.bignumber.equal( + constants.ZERO_AMOUNT, + ); + expect(feeRecipientEthBalanceAfter).to.be.bignumber.equal(feeRecipientEthBalanceBefore.plus(ethSpentOnFee)); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should fail if the fee is set too high', async () => { + const ethValue = orderWithoutFee.takerAssetAmount.div(2); + const baseFeePercentage = 6; + feePercentage = ForwarderWrapper.getPercentageOfValue(ethValue, baseFeePercentage); + const ordersWithoutFee = [orderWithoutFee]; + const feeOrders: SignedOrder[] = []; + await expectTransactionFailedAsync( + forwarderWrapper.marketSellOrdersWithEthAsync( + ordersWithoutFee, + feeOrders, + { from: takerAddress, value: ethValue, gasPrice }, + { feePercentage, feeRecipient: feeRecipientAddress }, + ), + RevertReason.FeePercentageTooLarge, + ); + }); + it('should fail if there is not enough ETH remaining to pay the fee', async () => { + const ethValue = orderWithoutFee.takerAssetAmount.div(2); + const baseFeePercentage = 5; + feePercentage = ForwarderWrapper.getPercentageOfValue(constants.PERCENTAGE_DENOMINATOR, baseFeePercentage); + const ordersWithFee = [orderWithFee]; + const feeOrders = [feeOrder]; + await expectTransactionFailedAsync( + forwarderWrapper.marketSellOrdersWithEthAsync( + ordersWithFee, + feeOrders, + { from: takerAddress, value: ethValue, gasPrice }, + { feePercentage, feeRecipient: feeRecipientAddress }, + ), + RevertReason.InsufficientEthRemaining, + ); + }); + }); + describe('marketBuyOrdersWithEth without extra fees', () => { + it('should buy the exact amount of makerAsset in a single order', async () => { + const ordersWithoutFee = [orderWithoutFee]; + const feeOrders: SignedOrder[] = []; + const makerAssetFillAmount = orderWithoutFee.makerAssetAmount.dividedToIntegerBy(2); + const ethValue = orderWithoutFee.takerAssetAmount.dividedToIntegerBy(2); + + tx = await forwarderWrapper.marketBuyOrdersWithEthAsync(ordersWithoutFee, feeOrders, makerAssetFillAmount, { + value: ethValue, + from: takerAddress, + }); + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const primaryTakerAssetFillAmount = ethValue; + const totalEthSpent = primaryTakerAssetFillAmount.plus(gasPrice.times(tx.gasUsed)); + + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].plus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(newBalances[forwarderContract.address][defaultMakerAssetAddress]).to.be.bignumber.equal( + constants.ZERO_AMOUNT, + ); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should buy the exact amount of makerAsset in multiple orders', async () => { + const secondOrderWithoutFee = await orderFactory.newSignedOrderAsync(); + const ordersWithoutFee = [orderWithoutFee, secondOrderWithoutFee]; + const feeOrders: SignedOrder[] = []; + const makerAssetFillAmount = ordersWithoutFee[0].makerAssetAmount.plus( + ordersWithoutFee[1].makerAssetAmount.dividedToIntegerBy(2), + ); + const ethValue = ordersWithoutFee[0].takerAssetAmount.plus( + ordersWithoutFee[1].takerAssetAmount.dividedToIntegerBy(2), + ); + + tx = await forwarderWrapper.marketBuyOrdersWithEthAsync(ordersWithoutFee, feeOrders, makerAssetFillAmount, { + value: ethValue, + from: takerAddress, + }); + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const primaryTakerAssetFillAmount = ethValue; + const totalEthSpent = primaryTakerAssetFillAmount.plus(gasPrice.times(tx.gasUsed)); + + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].plus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(newBalances[forwarderContract.address][defaultMakerAssetAddress]).to.be.bignumber.equal( + constants.ZERO_AMOUNT, + ); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should buy the exact amount of makerAsset and return excess ETH', async () => { + const ordersWithoutFee = [orderWithoutFee]; + const feeOrders: SignedOrder[] = []; + const makerAssetFillAmount = orderWithoutFee.makerAssetAmount.dividedToIntegerBy(2); + const ethValue = orderWithoutFee.takerAssetAmount; + + tx = await forwarderWrapper.marketBuyOrdersWithEthAsync(ordersWithoutFee, feeOrders, makerAssetFillAmount, { + value: ethValue, + from: takerAddress, + }); + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const primaryTakerAssetFillAmount = ethValue.dividedToIntegerBy(2); + const totalEthSpent = primaryTakerAssetFillAmount.plus(gasPrice.times(tx.gasUsed)); + + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].plus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(newBalances[forwarderContract.address][defaultMakerAssetAddress]).to.be.bignumber.equal( + constants.ZERO_AMOUNT, + ); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should buy the exact amount of makerAsset and pay ZRX from feeOrders', async () => { + const ordersWithFee = [orderWithFee]; + const feeOrders = [feeOrder]; + const makerAssetFillAmount = orderWithFee.makerAssetAmount.dividedToIntegerBy(2); + const ethValue = orderWithFee.takerAssetAmount; + + tx = await forwarderWrapper.marketBuyOrdersWithEthAsync(ordersWithFee, feeOrders, makerAssetFillAmount, { + value: ethValue, + from: takerAddress, + }); + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const primaryTakerAssetFillAmount = orderWithFee.takerAssetAmount.dividedToIntegerBy(2); + const feeAmount = orderWithFee.takerFee.dividedToIntegerBy(2); + const wethSpentOnFeeOrders = ForwarderWrapper.getWethForFeeOrders(feeAmount, feeOrders); + const totalEthSpent = primaryTakerAssetFillAmount + .plus(wethSpentOnFeeOrders) + .plus(gasPrice.times(tx.gasUsed)); + + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].plus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount).plus(wethSpentOnFeeOrders), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(newBalances[forwarderContract.address][defaultMakerAssetAddress]).to.be.bignumber.equal( + constants.ZERO_AMOUNT, + ); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should buy slightly greater than makerAssetAmount when buying ZRX', async () => { + orderWithFee = await orderFactory.newSignedOrderAsync({ + makerAssetData: assetDataUtils.encodeERC20AssetData(zrxToken.address), + takerFee: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), DECIMALS_DEFAULT), + }); + const ordersWithFee = [orderWithFee]; + const feeOrders: SignedOrder[] = []; + const makerAssetFillAmount = orderWithFee.makerAssetAmount.dividedToIntegerBy(2); + const ethValue = orderWithFee.takerAssetAmount; + tx = await forwarderWrapper.marketBuyOrdersWithEthAsync(ordersWithFee, feeOrders, makerAssetFillAmount, { + value: ethValue, + from: takerAddress, + }); + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const primaryTakerAssetFillAmount = ForwarderWrapper.getWethForFeeOrders( + makerAssetFillAmount, + ordersWithFee, + ); + const totalEthSpent = primaryTakerAssetFillAmount.plus(gasPrice.times(tx.gasUsed)); + const makerAssetFilledAmount = orderWithFee.makerAssetAmount + .times(primaryTakerAssetFillAmount) + .dividedToIntegerBy(orderWithFee.takerAssetAmount); + const takerFeePaid = orderWithFee.takerFee + .times(primaryTakerAssetFillAmount) + .dividedToIntegerBy(orderWithFee.takerAssetAmount); + const makerFeePaid = orderWithFee.makerFee + .times(primaryTakerAssetFillAmount) + .dividedToIntegerBy(orderWithFee.takerAssetAmount); + const totalZrxPurchased = makerAssetFilledAmount.minus(takerFeePaid); + // Up to 1 wei worth of ZRX will be overbought per order + const maxOverboughtZrx = new BigNumber(1) + .times(orderWithFee.makerAssetAmount) + .dividedToIntegerBy(orderWithFee.takerAssetAmount); + + expect(totalZrxPurchased).to.be.bignumber.gte(makerAssetFillAmount); + expect(totalZrxPurchased).to.be.bignumber.lte(makerAssetFillAmount.plus(maxOverboughtZrx)); + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][zrxToken.address].minus(makerAssetFilledAmount).minus(makerFeePaid), + ); + expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[takerAddress][zrxToken.address].plus(totalZrxPurchased), + ); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(newBalances[forwarderContract.address][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[forwarderContract.address][zrxToken.address], + ); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should revert if the amount of ETH sent is too low to fill the makerAssetAmount', async () => { + const ordersWithoutFee = [orderWithoutFee]; + const feeOrders: SignedOrder[] = []; + const makerAssetFillAmount = orderWithoutFee.makerAssetAmount.dividedToIntegerBy(2); + const ethValue = orderWithoutFee.takerAssetAmount.dividedToIntegerBy(4); + return expectTransactionFailedAsync( + forwarderWrapper.marketBuyOrdersWithEthAsync(ordersWithoutFee, feeOrders, makerAssetFillAmount, { + value: ethValue, + from: takerAddress, + }), + RevertReason.CompleteFillFailed, + ); + }); + it('should buy an ERC721 asset from a single order', async () => { + const makerAssetId = erc721MakerAssetIds[0]; + orderWithoutFee = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber(1), + makerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), + }); + const ordersWithoutFee = [orderWithoutFee]; + const feeOrders: SignedOrder[] = []; + const makerAssetFillAmount = new BigNumber(1); + const ethValue = orderWithFee.takerAssetAmount; + + tx = await forwarderWrapper.marketBuyOrdersWithEthAsync(ordersWithoutFee, feeOrders, makerAssetFillAmount, { + from: takerAddress, + value: ethValue, + }); + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newOwner = await erc721Token.ownerOf.callAsync(makerAssetId); + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const primaryTakerAssetFillAmount = ethValue; + const totalEthSpent = primaryTakerAssetFillAmount.plus(gasPrice.times(tx.gasUsed)); + expect(newOwner).to.be.bignumber.equal(takerAddress); + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(newBalances[forwarderContract.address][defaultMakerAssetAddress]).to.be.bignumber.equal( + constants.ZERO_AMOUNT, + ); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should revert if buying an ERC721 asset when later orders contain different makerAssetData', async () => { + const makerAssetId = erc721MakerAssetIds[0]; + orderWithoutFee = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber(1), + makerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), + }); + const differentMakerAssetDataOrder = await orderFactory.newSignedOrderAsync(); + const ordersWithoutFee = [orderWithoutFee, differentMakerAssetDataOrder]; + const feeOrders: SignedOrder[] = []; + const makerAssetFillAmount = new BigNumber(1).plus(differentMakerAssetDataOrder.makerAssetAmount); + const ethValue = orderWithFee.takerAssetAmount; + return expectTransactionFailedAsync( + forwarderWrapper.marketBuyOrdersWithEthAsync(ordersWithoutFee, feeOrders, makerAssetFillAmount, { + value: ethValue, + from: takerAddress, + }), + RevertReason.CompleteFillFailed, + ); + }); + it('should buy an ERC721 asset and pay ZRX fees from a single fee order', async () => { + const makerAssetId = erc721MakerAssetIds[0]; + orderWithFee = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber(1), + makerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), + takerFee: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), DECIMALS_DEFAULT), + }); + const ordersWithFee = [orderWithFee]; + const feeOrders = [feeOrder]; + const makerAssetFillAmount = orderWithFee.makerAssetAmount; + const primaryTakerAssetFillAmount = orderWithFee.takerAssetAmount; + const feeAmount = orderWithFee.takerFee; + const wethSpentOnFeeOrders = ForwarderWrapper.getWethForFeeOrders(feeAmount, feeOrders); + const ethValue = primaryTakerAssetFillAmount.plus(wethSpentOnFeeOrders); + + tx = await forwarderWrapper.marketBuyOrdersWithEthAsync(ordersWithFee, feeOrders, makerAssetFillAmount, { + value: ethValue, + from: takerAddress, + }); + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newOwner = await erc721Token.ownerOf.callAsync(makerAssetId); + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const totalEthSpent = ethValue.plus(gasPrice.times(tx.gasUsed)); + + expect(newOwner).to.be.bignumber.equal(takerAddress); + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount).plus(wethSpentOnFeeOrders), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(newBalances[forwarderContract.address][defaultMakerAssetAddress]).to.be.bignumber.equal( + constants.ZERO_AMOUNT, + ); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should buy an ERC721 asset and pay ZRX fees from multiple fee orders', async () => { + const makerAssetId = erc721MakerAssetIds[0]; + orderWithFee = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber(1), + makerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), + takerFee: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), DECIMALS_DEFAULT), + }); + const ordersWithFee = [orderWithFee]; + const makerAssetData = assetDataUtils.encodeERC20AssetData(zrxToken.address); + const makerAssetAmount = orderWithFee.takerFee.dividedToIntegerBy(2); + const takerAssetAmount = feeOrder.takerAssetAmount + .times(makerAssetAmount) + .dividedToIntegerBy(feeOrder.makerAssetAmount); + + const firstFeeOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData, + makerAssetAmount, + takerAssetAmount, + }); + const secondFeeOrder = await orderFactory.newSignedOrderAsync({ + makerAssetData, + makerAssetAmount, + takerAssetAmount, + }); + const feeOrders = [firstFeeOrder, secondFeeOrder]; + + const makerAssetFillAmount = orderWithFee.makerAssetAmount; + const primaryTakerAssetFillAmount = orderWithFee.takerAssetAmount; + const feeAmount = orderWithFee.takerFee; + const wethSpentOnFeeOrders = ForwarderWrapper.getWethForFeeOrders(feeAmount, feeOrders); + const ethValue = primaryTakerAssetFillAmount.plus(wethSpentOnFeeOrders); + + tx = await forwarderWrapper.marketBuyOrdersWithEthAsync(ordersWithFee, feeOrders, makerAssetFillAmount, { + value: ethValue, + from: takerAddress, + }); + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newOwner = await erc721Token.ownerOf.callAsync(makerAssetId); + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const totalEthSpent = ethValue.plus(gasPrice.times(tx.gasUsed)); + + expect(newOwner).to.be.bignumber.equal(takerAddress); + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount).plus(wethSpentOnFeeOrders), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(newBalances[forwarderContract.address][defaultMakerAssetAddress]).to.be.bignumber.equal( + constants.ZERO_AMOUNT, + ); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('Should buy slightly greater MakerAsset when exchange rate is rounded', async () => { + // The 0x Protocol contracts round the exchange rate in favor of the Maker. + // In this case, the taker must round up how much they're going to spend, which + // in turn increases the amount of MakerAsset being purchased. + // Example: + // The taker wants to buy 5 units of the MakerAsset at a rate of 3M/2T. + // For every 2 units of TakerAsset, the taker will receive 3 units of MakerAsset. + // To purchase 5 units, the taker must spend 10/3 = 3.33 units of TakerAssset. + // However, the Taker can only spend whole units. + // Spending floor(10/3) = 3 units will yield a profit of Floor(3*3/2) = Floor(4.5) = 4 units of MakerAsset. + // Spending ceil(10/3) = 4 units will yield a profit of Floor(4*3/2) = 6 units of MakerAsset. + // + // The forwarding contract will opt for the second option, which overbuys, to ensure the taker + // receives at least the amount of MakerAsset they requested. + // + // Construct test case using values from example above + orderWithoutFee = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber('30'), + takerAssetAmount: new BigNumber('20'), + makerAssetData: assetDataUtils.encodeERC20AssetData(erc20TokenA.address), + takerAssetData: assetDataUtils.encodeERC20AssetData(weth.address), + makerFee: new BigNumber(0), + takerFee: new BigNumber(0), + }); + const ordersWithoutFee = [orderWithoutFee]; + const feeOrders: SignedOrder[] = []; + const desiredMakerAssetFillAmount = new BigNumber('5'); + const makerAssetFillAmount = new BigNumber('6'); + const ethValue = new BigNumber('4'); + // Execute test case + tx = await forwarderWrapper.marketBuyOrdersWithEthAsync( + ordersWithoutFee, + feeOrders, + desiredMakerAssetFillAmount, + { + value: ethValue, + from: takerAddress, + }, + ); + // Fetch end balances and construct expected outputs + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newBalances = await erc20Wrapper.getBalancesAsync(); + const primaryTakerAssetFillAmount = ethValue; + const totalEthSpent = primaryTakerAssetFillAmount.plus(gasPrice.times(tx.gasUsed)); + // Validate test case + expect(makerAssetFillAmount).to.be.bignumber.greaterThan(desiredMakerAssetFillAmount); + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].plus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(newBalances[forwarderContract.address][defaultMakerAssetAddress]).to.be.bignumber.equal( + constants.ZERO_AMOUNT, + ); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('Should buy slightly greater MakerAsset when exchange rate is rounded, and MakerAsset is ZRX', async () => { + // See the test case above for a detailed description of this case. + // The difference here is that the MakerAsset is ZRX. We expect the same result as above, + // but this tests a different code path. + // + // Construct test case using values from example above + orderWithoutFee = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber('30'), + takerAssetAmount: new BigNumber('20'), + makerAssetData: zrxAssetData, + takerAssetData: assetDataUtils.encodeERC20AssetData(weth.address), + makerFee: new BigNumber(0), + takerFee: new BigNumber(0), + }); + const ordersWithoutFee = [orderWithoutFee]; + const feeOrders: SignedOrder[] = []; + const desiredMakerAssetFillAmount = new BigNumber('5'); + const makerAssetFillAmount = new BigNumber('6'); + const ethValue = new BigNumber('4'); + // Execute test case + tx = await forwarderWrapper.marketBuyOrdersWithEthAsync( + ordersWithoutFee, + feeOrders, + desiredMakerAssetFillAmount, + { + value: ethValue, + from: takerAddress, + }, + ); + // Fetch end balances and construct expected outputs + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newBalances = await erc20Wrapper.getBalancesAsync(); + const primaryTakerAssetFillAmount = ethValue; + const totalEthSpent = primaryTakerAssetFillAmount.plus(gasPrice.times(tx.gasUsed)); + // Validate test case + expect(makerAssetFillAmount).to.be.bignumber.greaterThan(desiredMakerAssetFillAmount); + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][zrxToken.address].minus(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[takerAddress][zrxToken.address].plus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('Should buy slightly greater MakerAsset when exchange rate is rounded (Regression Test)', async () => { + // Order taken from a transaction on mainnet that failed due to a rounding error. + orderWithoutFee = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber('268166666666666666666'), + takerAssetAmount: new BigNumber('219090625878836371'), + makerAssetData: assetDataUtils.encodeERC20AssetData(erc20TokenA.address), + takerAssetData: assetDataUtils.encodeERC20AssetData(weth.address), + makerFee: new BigNumber(0), + takerFee: new BigNumber(0), + }); + const ordersWithoutFee = [orderWithoutFee]; + const feeOrders: SignedOrder[] = []; + // The taker will receive more than the desired amount of makerAsset due to rounding + const desiredMakerAssetFillAmount = new BigNumber('5000000000000000000'); + const ethValue = new BigNumber('4084971271824171'); + const makerAssetFillAmount = ethValue + .times(orderWithoutFee.makerAssetAmount) + .dividedToIntegerBy(orderWithoutFee.takerAssetAmount); + // Execute test case + tx = await forwarderWrapper.marketBuyOrdersWithEthAsync( + ordersWithoutFee, + feeOrders, + desiredMakerAssetFillAmount, + { + value: ethValue, + from: takerAddress, + }, + ); + // Fetch end balances and construct expected outputs + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newBalances = await erc20Wrapper.getBalancesAsync(); + const primaryTakerAssetFillAmount = ethValue; + const totalEthSpent = primaryTakerAssetFillAmount.plus(gasPrice.times(tx.gasUsed)); + // Validate test case + expect(makerAssetFillAmount).to.be.bignumber.greaterThan(desiredMakerAssetFillAmount); + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].plus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(newBalances[forwarderContract.address][defaultMakerAssetAddress]).to.be.bignumber.equal( + constants.ZERO_AMOUNT, + ); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('Should buy slightly greater MakerAsset when exchange rate is rounded, and MakerAsset is ZRX (Regression Test)', async () => { + // Order taken from a transaction on mainnet that failed due to a rounding error. + orderWithoutFee = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber('268166666666666666666'), + takerAssetAmount: new BigNumber('219090625878836371'), + makerAssetData: zrxAssetData, + takerAssetData: assetDataUtils.encodeERC20AssetData(weth.address), + makerFee: new BigNumber(0), + takerFee: new BigNumber(0), + }); + const ordersWithoutFee = [orderWithoutFee]; + const feeOrders: SignedOrder[] = []; + // The taker will receive more than the desired amount of makerAsset due to rounding + const desiredMakerAssetFillAmount = new BigNumber('5000000000000000000'); + const ethValue = new BigNumber('4084971271824171'); + const makerAssetFillAmount = ethValue + .times(orderWithoutFee.makerAssetAmount) + .dividedToIntegerBy(orderWithoutFee.takerAssetAmount); + // Execute test case + tx = await forwarderWrapper.marketBuyOrdersWithEthAsync( + ordersWithoutFee, + feeOrders, + desiredMakerAssetFillAmount, + { + value: ethValue, + from: takerAddress, + }, + ); + // Fetch end balances and construct expected outputs + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newBalances = await erc20Wrapper.getBalancesAsync(); + const primaryTakerAssetFillAmount = ethValue; + const totalEthSpent = primaryTakerAssetFillAmount.plus(gasPrice.times(tx.gasUsed)); + // Validate test case + expect(makerAssetFillAmount).to.be.bignumber.greaterThan(desiredMakerAssetFillAmount); + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][zrxToken.address].minus(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[takerAddress][zrxToken.address].plus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('Should buy correct MakerAsset when exchange rate is NOT rounded, and MakerAsset is ZRX (Regression Test)', async () => { + // An extra unit of TakerAsset was sent to the exchange contract to account for rounding errors, in Forwarder v1. + // Specifically, the takerFillAmount was calculated using Floor(desiredMakerAmount * exchangeRate) + 1 + // We have since changed this to be Ceil(desiredMakerAmount * exchangeRate) + // These calculations produce different results when `desiredMakerAmount * exchangeRate` is an integer. + // + // This test verifies that `ceil` is sufficient: + // Let TakerAssetAmount = MakerAssetAmount * 2 + // -> exchangeRate = TakerAssetAmount / MakerAssetAmount = (2*MakerAssetAmount)/MakerAssetAmount = 2 + // .: desiredMakerAmount * exchangeRate is an integer. + // + // Construct test case using values from example above + orderWithoutFee = await orderFactory.newSignedOrderAsync({ + makerAssetAmount: new BigNumber('30'), + takerAssetAmount: new BigNumber('60'), + makerAssetData: zrxAssetData, + takerAssetData: assetDataUtils.encodeERC20AssetData(weth.address), + makerFee: new BigNumber(0), + takerFee: new BigNumber(0), + }); + const ordersWithoutFee = [orderWithoutFee]; + const feeOrders: SignedOrder[] = []; + const makerAssetFillAmount = new BigNumber('5'); + const ethValue = new BigNumber('10'); + // Execute test case + tx = await forwarderWrapper.marketBuyOrdersWithEthAsync(ordersWithoutFee, feeOrders, makerAssetFillAmount, { + value: ethValue, + from: takerAddress, + }); + // Fetch end balances and construct expected outputs + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const newBalances = await erc20Wrapper.getBalancesAsync(); + const primaryTakerAssetFillAmount = ethValue; + const totalEthSpent = primaryTakerAssetFillAmount.plus(gasPrice.times(tx.gasUsed)); + // Validate test case + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][zrxToken.address].minus(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[takerAddress][zrxToken.address].plus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + }); + describe('marketBuyOrdersWithEth with extra fees', () => { + it('should buy an asset and send fee to feeRecipient', async () => { + const ordersWithoutFee = [orderWithoutFee]; + const feeOrders: SignedOrder[] = []; + const makerAssetFillAmount = orderWithoutFee.makerAssetAmount.dividedToIntegerBy(2); + const ethValue = orderWithoutFee.takerAssetAmount; + + const baseFeePercentage = 2; + feePercentage = ForwarderWrapper.getPercentageOfValue(constants.PERCENTAGE_DENOMINATOR, baseFeePercentage); + const feeRecipientEthBalanceBefore = await web3Wrapper.getBalanceInWeiAsync(feeRecipientAddress); + tx = await forwarderWrapper.marketBuyOrdersWithEthAsync( + ordersWithoutFee, + feeOrders, + makerAssetFillAmount, + { + value: ethValue, + from: takerAddress, + }, + { feePercentage, feeRecipient: feeRecipientAddress }, + ); + const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress); + const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address); + const feeRecipientEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(feeRecipientAddress); + const newBalances = await erc20Wrapper.getBalancesAsync(); + + const primaryTakerAssetFillAmount = orderWithoutFee.takerAssetAmount.dividedToIntegerBy(2); + const ethSpentOnFee = ForwarderWrapper.getPercentageOfValue(primaryTakerAssetFillAmount, baseFeePercentage); + const totalEthSpent = primaryTakerAssetFillAmount.plus(ethSpentOnFee).plus(gasPrice.times(tx.gasUsed)); + + expect(feeRecipientEthBalanceAfter).to.be.bignumber.equal(feeRecipientEthBalanceBefore.plus(ethSpentOnFee)); + expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent)); + expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFillAmount), + ); + expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( + erc20Balances[takerAddress][defaultMakerAssetAddress].plus(makerAssetFillAmount), + ); + expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal( + erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount), + ); + expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(newBalances[forwarderContract.address][defaultMakerAssetAddress]).to.be.bignumber.equal( + constants.ZERO_AMOUNT, + ); + expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should fail if the fee is set too high', async () => { + const ordersWithoutFee = [orderWithoutFee]; + const feeOrders: SignedOrder[] = []; + const makerAssetFillAmount = orderWithoutFee.makerAssetAmount.dividedToIntegerBy(2); + const ethValue = orderWithoutFee.takerAssetAmount; + + const baseFeePercentage = 6; + feePercentage = ForwarderWrapper.getPercentageOfValue(constants.PERCENTAGE_DENOMINATOR, baseFeePercentage); + await expectTransactionFailedAsync( + forwarderWrapper.marketBuyOrdersWithEthAsync( + ordersWithoutFee, + feeOrders, + makerAssetFillAmount, + { + value: ethValue, + from: takerAddress, + }, + { feePercentage, feeRecipient: feeRecipientAddress }, + ), + RevertReason.FeePercentageTooLarge, + ); + }); + it('should fail if there is not enough ETH remaining to pay the fee', async () => { + const ordersWithoutFee = [orderWithoutFee]; + const feeOrders: SignedOrder[] = []; + const makerAssetFillAmount = orderWithoutFee.makerAssetAmount.dividedToIntegerBy(2); + const ethValue = orderWithoutFee.takerAssetAmount.dividedToIntegerBy(2); + + const baseFeePercentage = 2; + feePercentage = ForwarderWrapper.getPercentageOfValue(constants.PERCENTAGE_DENOMINATOR, baseFeePercentage); + await expectTransactionFailedAsync( + forwarderWrapper.marketBuyOrdersWithEthAsync( + ordersWithoutFee, + feeOrders, + makerAssetFillAmount, + { + value: ethValue, + from: takerAddress, + }, + { feePercentage, feeRecipient: feeRecipientAddress }, + ), + RevertReason.InsufficientEthRemaining, + ); + }); + }); + describe('withdrawAsset', () => { + it('should allow owner to withdraw ERC20 tokens', async () => { + const zrxWithdrawAmount = erc20Balances[forwarderContract.address][zrxToken.address]; + await forwarderWrapper.withdrawAssetAsync(zrxAssetData, zrxWithdrawAmount, { from: owner }); + const newBalances = await erc20Wrapper.getBalancesAsync(); + expect(newBalances[owner][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[owner][zrxToken.address].plus(zrxWithdrawAmount), + ); + expect(newBalances[forwarderContract.address][zrxToken.address]).to.be.bignumber.equal( + erc20Balances[forwarderContract.address][zrxToken.address].minus(zrxWithdrawAmount), + ); + }); + it('should revert if not called by owner', async () => { + const zrxWithdrawAmount = erc20Balances[forwarderContract.address][zrxToken.address]; + await expectTransactionFailedAsync( + forwarderWrapper.withdrawAssetAsync(zrxAssetData, zrxWithdrawAmount, { from: makerAddress }), + RevertReason.OnlyContractOwner, + ); + }); + }); +}); +// tslint:disable:max-file-line-count +// tslint:enable:no-unnecessary-type-assertion diff --git a/contracts/core/test/extensions/order_validator.ts b/contracts/core/test/extensions/order_validator.ts new file mode 100644 index 000000000..3dbe76f6e --- /dev/null +++ b/contracts/core/test/extensions/order_validator.ts @@ -0,0 +1,607 @@ +import { + chaiSetup, + constants, + OrderFactory, + OrderStatus, + provider, + txDefaults, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { assetDataUtils, orderHashUtils } from '@0x/order-utils'; +import { SignedOrder } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import * as chai from 'chai'; +import * as _ from 'lodash'; + +import { DummyERC20TokenContract } from '../../generated-wrappers/dummy_erc20_token'; +import { DummyERC721TokenContract } from '../../generated-wrappers/dummy_erc721_token'; +import { ERC20ProxyContract } from '../../generated-wrappers/erc20_proxy'; +import { ERC721ProxyContract } from '../../generated-wrappers/erc721_proxy'; +import { ExchangeContract } from '../../generated-wrappers/exchange'; +import { OrderValidatorContract } from '../../generated-wrappers/order_validator'; +import { artifacts } from '../../src/artifacts'; +import { ERC20Wrapper } from '../utils/erc20_wrapper'; +import { ERC721Wrapper } from '../utils/erc721_wrapper'; +import { ExchangeWrapper } from '../utils/exchange_wrapper'; + +chaiSetup.configure(); +const expect = chai.expect; +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); + +describe('OrderValidator', () => { + let makerAddress: string; + let owner: string; + let takerAddress: string; + let erc20AssetData: string; + let erc721AssetData: string; + + let erc20Token: DummyERC20TokenContract; + let zrxToken: DummyERC20TokenContract; + let erc721Token: DummyERC721TokenContract; + let exchange: ExchangeContract; + let orderValidator: OrderValidatorContract; + let erc20Proxy: ERC20ProxyContract; + let erc721Proxy: ERC721ProxyContract; + + let signedOrder: SignedOrder; + let signedOrder2: SignedOrder; + let orderFactory: OrderFactory; + + const tokenId = new BigNumber(123456789); + const tokenId2 = new BigNumber(987654321); + const ERC721_BALANCE = new BigNumber(1); + const ERC721_ALLOWANCE = new BigNumber(1); + + before(async () => { + await blockchainLifecycle.startAsync(); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + + before(async () => { + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + const usedAddresses = ([owner, makerAddress, takerAddress] = _.slice(accounts, 0, 3)); + + const erc20Wrapper = new ERC20Wrapper(provider, usedAddresses, owner); + const erc721Wrapper = new ERC721Wrapper(provider, usedAddresses, owner); + + const numDummyErc20ToDeploy = 2; + [erc20Token, zrxToken] = await erc20Wrapper.deployDummyTokensAsync( + numDummyErc20ToDeploy, + constants.DUMMY_TOKEN_DECIMALS, + ); + erc20Proxy = await erc20Wrapper.deployProxyAsync(); + + [erc721Token] = await erc721Wrapper.deployDummyTokensAsync(); + erc721Proxy = await erc721Wrapper.deployProxyAsync(); + + const zrxAssetData = assetDataUtils.encodeERC20AssetData(zrxToken.address); + exchange = await ExchangeContract.deployFrom0xArtifactAsync( + artifacts.Exchange, + provider, + txDefaults, + zrxAssetData, + ); + const exchangeWrapper = new ExchangeWrapper(exchange, provider); + await exchangeWrapper.registerAssetProxyAsync(erc20Proxy.address, owner); + await exchangeWrapper.registerAssetProxyAsync(erc721Proxy.address, owner); + + orderValidator = await OrderValidatorContract.deployFrom0xArtifactAsync( + artifacts.OrderValidator, + provider, + txDefaults, + exchange.address, + zrxAssetData, + ); + + erc20AssetData = assetDataUtils.encodeERC20AssetData(erc20Token.address); + erc721AssetData = assetDataUtils.encodeERC721AssetData(erc721Token.address, tokenId); + const defaultOrderParams = { + ...constants.STATIC_ORDER_PARAMS, + exchangeAddress: exchange.address, + makerAddress, + feeRecipientAddress: constants.NULL_ADDRESS, + makerAssetData: erc20AssetData, + takerAssetData: erc721AssetData, + }; + const privateKey = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(makerAddress)]; + orderFactory = new OrderFactory(privateKey, defaultOrderParams); + }); + + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + + describe('getBalanceAndAllowance', () => { + describe('getERC721TokenOwner', async () => { + it('should return the null address when tokenId is not owned', async () => { + const tokenOwner = await orderValidator.getERC721TokenOwner.callAsync(makerAddress, tokenId); + expect(tokenOwner).to.be.equal(constants.NULL_ADDRESS); + }); + it('should return the owner address when tokenId is owned', async () => { + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Token.mint.sendTransactionAsync(makerAddress, tokenId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const tokenOwner = await orderValidator.getERC721TokenOwner.callAsync(erc721Token.address, tokenId); + expect(tokenOwner).to.be.equal(makerAddress); + }); + }); + describe('ERC20 assetData', () => { + it('should return the correct balances and allowances when both values are 0', async () => { + const [newBalance, newAllowance] = await orderValidator.getBalanceAndAllowance.callAsync( + makerAddress, + erc20AssetData, + ); + expect(constants.ZERO_AMOUNT).to.be.bignumber.equal(newBalance); + expect(constants.ZERO_AMOUNT).to.be.bignumber.equal(newAllowance); + }); + it('should return the correct balance and allowance when both values are non-zero', async () => { + const balance = new BigNumber(123); + const allowance = new BigNumber(456); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Token.setBalance.sendTransactionAsync(makerAddress, balance), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Token.approve.sendTransactionAsync(erc20Proxy.address, allowance, { + from: makerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const [newBalance, newAllowance] = await orderValidator.getBalanceAndAllowance.callAsync( + makerAddress, + erc20AssetData, + ); + expect(balance).to.be.bignumber.equal(newBalance); + expect(allowance).to.be.bignumber.equal(newAllowance); + }); + }); + describe('ERC721 assetData', () => { + it('should return a balance of 0 when the tokenId is not owned by target', async () => { + const [newBalance] = await orderValidator.getBalanceAndAllowance.callAsync( + makerAddress, + erc721AssetData, + ); + expect(newBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should return an allowance of 0 when no approval is set', async () => { + const [, newAllowance] = await orderValidator.getBalanceAndAllowance.callAsync( + makerAddress, + erc721AssetData, + ); + expect(newAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should return a balance of 1 when the tokenId is owned by target', async () => { + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Token.mint.sendTransactionAsync(makerAddress, tokenId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const [newBalance] = await orderValidator.getBalanceAndAllowance.callAsync( + makerAddress, + erc721AssetData, + ); + expect(newBalance).to.be.bignumber.equal(ERC721_BALANCE); + }); + it('should return an allowance of 1 when ERC721Proxy is approved for all', async () => { + const isApproved = true; + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Token.setApprovalForAll.sendTransactionAsync(erc721Proxy.address, isApproved, { + from: makerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const [, newAllowance] = await orderValidator.getBalanceAndAllowance.callAsync( + makerAddress, + erc721AssetData, + ); + expect(newAllowance).to.be.bignumber.equal(ERC721_ALLOWANCE); + }); + it('should return an allowance of 0 when ERC721Proxy is approved for specific tokenId', async () => { + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Token.mint.sendTransactionAsync(makerAddress, tokenId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Token.approve.sendTransactionAsync(erc721Proxy.address, tokenId, { + from: makerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const [, newAllowance] = await orderValidator.getBalanceAndAllowance.callAsync( + makerAddress, + erc721AssetData, + ); + expect(newAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + }); + }); + describe('getBalancesAndAllowances', () => { + it('should return the correct balances and allowances when all values are 0', async () => { + const [ + [erc20Balance, erc721Balance], + [erc20Allowance, erc721Allowance], + ] = await orderValidator.getBalancesAndAllowances.callAsync(makerAddress, [ + erc20AssetData, + erc721AssetData, + ]); + expect(erc20Balance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(erc721Balance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(erc20Allowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(erc721Allowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should return the correct balances and allowances when balances and allowances are non-zero', async () => { + const balance = new BigNumber(123); + const allowance = new BigNumber(456); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Token.setBalance.sendTransactionAsync(makerAddress, balance), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Token.approve.sendTransactionAsync(erc20Proxy.address, allowance, { + from: makerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Token.mint.sendTransactionAsync(makerAddress, tokenId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const isApproved = true; + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Token.setApprovalForAll.sendTransactionAsync(erc721Proxy.address, isApproved, { + from: makerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const [ + [erc20Balance, erc721Balance], + [erc20Allowance, erc721Allowance], + ] = await orderValidator.getBalancesAndAllowances.callAsync(makerAddress, [ + erc20AssetData, + erc721AssetData, + ]); + expect(erc20Balance).to.be.bignumber.equal(balance); + expect(erc721Balance).to.be.bignumber.equal(ERC721_BALANCE); + expect(erc20Allowance).to.be.bignumber.equal(allowance); + expect(erc721Allowance).to.be.bignumber.equal(ERC721_ALLOWANCE); + }); + }); + describe('getTraderInfo', () => { + beforeEach(async () => { + signedOrder = await orderFactory.newSignedOrderAsync(); + }); + it('should return the correct info when no balances or allowances are set', async () => { + const traderInfo = await orderValidator.getTraderInfo.callAsync(signedOrder, takerAddress); + expect(traderInfo.makerBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.makerAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.takerBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.takerAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.makerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.makerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.takerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.takerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should return the correct info when balances and allowances are set', async () => { + const makerBalance = new BigNumber(123); + const makerAllowance = new BigNumber(456); + const makerZrxBalance = new BigNumber(789); + const takerZrxAllowance = new BigNumber(987); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Token.setBalance.sendTransactionAsync(makerAddress, makerBalance), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Token.approve.sendTransactionAsync(erc20Proxy.address, makerAllowance, { + from: makerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await zrxToken.setBalance.sendTransactionAsync(makerAddress, makerZrxBalance), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await zrxToken.approve.sendTransactionAsync(erc20Proxy.address, takerZrxAllowance, { + from: takerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Token.mint.sendTransactionAsync(takerAddress, tokenId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const isApproved = true; + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Token.setApprovalForAll.sendTransactionAsync(erc721Proxy.address, isApproved, { + from: takerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const traderInfo = await orderValidator.getTraderInfo.callAsync(signedOrder, takerAddress); + expect(traderInfo.makerBalance).to.be.bignumber.equal(makerBalance); + expect(traderInfo.makerAllowance).to.be.bignumber.equal(makerAllowance); + expect(traderInfo.takerBalance).to.be.bignumber.equal(ERC721_BALANCE); + expect(traderInfo.takerAllowance).to.be.bignumber.equal(ERC721_ALLOWANCE); + expect(traderInfo.makerZrxBalance).to.be.bignumber.equal(makerZrxBalance); + expect(traderInfo.makerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.takerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.takerZrxAllowance).to.be.bignumber.equal(takerZrxAllowance); + }); + }); + describe('getTradersInfo', () => { + beforeEach(async () => { + signedOrder = await orderFactory.newSignedOrderAsync(); + signedOrder2 = await orderFactory.newSignedOrderAsync({ + takerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, tokenId2), + }); + }); + it('should return the correct info when no balances or allowances have been set', async () => { + const orders = [signedOrder, signedOrder2]; + const takers = [takerAddress, takerAddress]; + const [traderInfo1, traderInfo2] = await orderValidator.getTradersInfo.callAsync(orders, takers); + expect(traderInfo1.makerBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.makerAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.takerBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.takerAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.makerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.makerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.takerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.takerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.makerBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.makerAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.takerBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.takerAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.makerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.makerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.takerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.takerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should return the correct info when balances and allowances are set', async () => { + const makerBalance = new BigNumber(123); + const makerAllowance = new BigNumber(456); + const makerZrxBalance = new BigNumber(789); + const takerZrxAllowance = new BigNumber(987); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Token.setBalance.sendTransactionAsync(makerAddress, makerBalance), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Token.approve.sendTransactionAsync(erc20Proxy.address, makerAllowance, { + from: makerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await zrxToken.setBalance.sendTransactionAsync(makerAddress, makerZrxBalance), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await zrxToken.approve.sendTransactionAsync(erc20Proxy.address, takerZrxAllowance, { + from: takerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const isApproved = true; + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Token.setApprovalForAll.sendTransactionAsync(erc721Proxy.address, isApproved, { + from: takerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Token.mint.sendTransactionAsync(takerAddress, tokenId2), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const orders = [signedOrder, signedOrder2]; + const takers = [takerAddress, takerAddress]; + const [traderInfo1, traderInfo2] = await orderValidator.getTradersInfo.callAsync(orders, takers); + + expect(traderInfo1.makerBalance).to.be.bignumber.equal(makerBalance); + expect(traderInfo1.makerAllowance).to.be.bignumber.equal(makerAllowance); + expect(traderInfo1.takerBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.takerAllowance).to.be.bignumber.equal(ERC721_ALLOWANCE); + expect(traderInfo1.makerZrxBalance).to.be.bignumber.equal(makerZrxBalance); + expect(traderInfo1.makerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.takerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.takerZrxAllowance).to.be.bignumber.equal(takerZrxAllowance); + expect(traderInfo2.makerBalance).to.be.bignumber.equal(makerBalance); + expect(traderInfo2.makerAllowance).to.be.bignumber.equal(makerAllowance); + expect(traderInfo2.takerBalance).to.be.bignumber.equal(ERC721_BALANCE); + expect(traderInfo2.takerAllowance).to.be.bignumber.equal(ERC721_ALLOWANCE); + expect(traderInfo2.makerZrxBalance).to.be.bignumber.equal(makerZrxBalance); + expect(traderInfo2.makerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.takerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.takerZrxAllowance).to.be.bignumber.equal(takerZrxAllowance); + }); + }); + describe('getOrderAndTraderInfo', () => { + beforeEach(async () => { + signedOrder = await orderFactory.newSignedOrderAsync(); + }); + it('should return the correct info when no balances or allowances are set', async () => { + const [orderInfo, traderInfo] = await orderValidator.getOrderAndTraderInfo.callAsync( + signedOrder, + takerAddress, + ); + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + expect(orderInfo.orderStatus).to.be.equal(OrderStatus.FILLABLE); + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.makerBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.makerAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.takerBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.takerAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.makerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.makerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.takerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.takerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should return the correct info when balances and allowances are set', async () => { + const makerBalance = new BigNumber(123); + const makerAllowance = new BigNumber(456); + const makerZrxBalance = new BigNumber(789); + const takerZrxAllowance = new BigNumber(987); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Token.setBalance.sendTransactionAsync(makerAddress, makerBalance), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Token.approve.sendTransactionAsync(erc20Proxy.address, makerAllowance, { + from: makerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await zrxToken.setBalance.sendTransactionAsync(makerAddress, makerZrxBalance), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await zrxToken.approve.sendTransactionAsync(erc20Proxy.address, takerZrxAllowance, { + from: takerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Token.mint.sendTransactionAsync(takerAddress, tokenId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const isApproved = true; + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Token.setApprovalForAll.sendTransactionAsync(erc721Proxy.address, isApproved, { + from: takerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const [orderInfo, traderInfo] = await orderValidator.getOrderAndTraderInfo.callAsync( + signedOrder, + takerAddress, + ); + const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); + expect(orderInfo.orderStatus).to.be.equal(OrderStatus.FILLABLE); + expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); + expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.makerBalance).to.be.bignumber.equal(makerBalance); + expect(traderInfo.makerAllowance).to.be.bignumber.equal(makerAllowance); + expect(traderInfo.takerBalance).to.be.bignumber.equal(ERC721_BALANCE); + expect(traderInfo.takerAllowance).to.be.bignumber.equal(ERC721_ALLOWANCE); + expect(traderInfo.makerZrxBalance).to.be.bignumber.equal(makerZrxBalance); + expect(traderInfo.makerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.takerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo.takerZrxAllowance).to.be.bignumber.equal(takerZrxAllowance); + }); + }); + describe('getOrdersAndTradersInfo', () => { + beforeEach(async () => { + signedOrder = await orderFactory.newSignedOrderAsync(); + signedOrder2 = await orderFactory.newSignedOrderAsync({ + takerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, tokenId2), + }); + }); + it('should return the correct info when no balances or allowances have been set', async () => { + const orders = [signedOrder, signedOrder2]; + const takers = [takerAddress, takerAddress]; + const [ + [orderInfo1, orderInfo2], + [traderInfo1, traderInfo2], + ] = await orderValidator.getOrdersAndTradersInfo.callAsync(orders, takers); + const expectedOrderHash1 = orderHashUtils.getOrderHashHex(signedOrder); + const expectedOrderHash2 = orderHashUtils.getOrderHashHex(signedOrder2); + expect(orderInfo1.orderStatus).to.be.equal(OrderStatus.FILLABLE); + expect(orderInfo1.orderHash).to.be.equal(expectedOrderHash1); + expect(orderInfo1.orderTakerAssetFilledAmount).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(orderInfo2.orderStatus).to.be.equal(OrderStatus.FILLABLE); + expect(orderInfo2.orderHash).to.be.equal(expectedOrderHash2); + expect(orderInfo2.orderTakerAssetFilledAmount).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.makerBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.makerAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.takerBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.takerAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.makerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.makerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.takerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.takerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.makerBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.makerAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.takerBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.takerAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.makerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.makerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.takerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.takerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + }); + it('should return the correct info when balances and allowances are set', async () => { + const makerBalance = new BigNumber(123); + const makerAllowance = new BigNumber(456); + const makerZrxBalance = new BigNumber(789); + const takerZrxAllowance = new BigNumber(987); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Token.setBalance.sendTransactionAsync(makerAddress, makerBalance), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Token.approve.sendTransactionAsync(erc20Proxy.address, makerAllowance, { + from: makerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await zrxToken.setBalance.sendTransactionAsync(makerAddress, makerZrxBalance), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await zrxToken.approve.sendTransactionAsync(erc20Proxy.address, takerZrxAllowance, { + from: takerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const isApproved = true; + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Token.setApprovalForAll.sendTransactionAsync(erc721Proxy.address, isApproved, { + from: takerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Token.mint.sendTransactionAsync(takerAddress, tokenId2), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const orders = [signedOrder, signedOrder2]; + const takers = [takerAddress, takerAddress]; + const [ + [orderInfo1, orderInfo2], + [traderInfo1, traderInfo2], + ] = await orderValidator.getOrdersAndTradersInfo.callAsync(orders, takers); + const expectedOrderHash1 = orderHashUtils.getOrderHashHex(signedOrder); + const expectedOrderHash2 = orderHashUtils.getOrderHashHex(signedOrder2); + expect(orderInfo1.orderStatus).to.be.equal(OrderStatus.FILLABLE); + expect(orderInfo1.orderHash).to.be.equal(expectedOrderHash1); + expect(orderInfo1.orderTakerAssetFilledAmount).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(orderInfo2.orderStatus).to.be.equal(OrderStatus.FILLABLE); + expect(orderInfo2.orderHash).to.be.equal(expectedOrderHash2); + expect(orderInfo2.orderTakerAssetFilledAmount).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.makerBalance).to.be.bignumber.equal(makerBalance); + expect(traderInfo1.makerAllowance).to.be.bignumber.equal(makerAllowance); + expect(traderInfo1.takerBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.takerAllowance).to.be.bignumber.equal(ERC721_ALLOWANCE); + expect(traderInfo1.makerZrxBalance).to.be.bignumber.equal(makerZrxBalance); + expect(traderInfo1.makerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.takerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo1.takerZrxAllowance).to.be.bignumber.equal(takerZrxAllowance); + expect(traderInfo2.makerBalance).to.be.bignumber.equal(makerBalance); + expect(traderInfo2.makerAllowance).to.be.bignumber.equal(makerAllowance); + expect(traderInfo2.takerBalance).to.be.bignumber.equal(ERC721_BALANCE); + expect(traderInfo2.takerAllowance).to.be.bignumber.equal(ERC721_ALLOWANCE); + expect(traderInfo2.makerZrxBalance).to.be.bignumber.equal(makerZrxBalance); + expect(traderInfo2.makerZrxAllowance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.takerZrxBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT); + expect(traderInfo2.takerZrxAllowance).to.be.bignumber.equal(takerZrxAllowance); + }); + }); +}); +// tslint:disable:max-file-line-count diff --git a/contracts/core/test/global_hooks.ts b/contracts/core/test/global_hooks.ts new file mode 100644 index 000000000..f8ace376a --- /dev/null +++ b/contracts/core/test/global_hooks.ts @@ -0,0 +1,17 @@ +import { env, EnvVars } from '@0x/dev-utils'; + +import { coverage, profiler, provider } from '@0x/contracts-test-utils'; +before('start web3 provider', () => { + provider.start(); +}); +after('generate coverage report', async () => { + if (env.parseBoolean(EnvVars.SolidityCoverage)) { + const coverageSubprovider = coverage.getCoverageSubproviderSingleton(); + await coverageSubprovider.writeCoverageAsync(); + } + if (env.parseBoolean(EnvVars.SolidityProfiler)) { + const profilerSubprovider = profiler.getProfilerSubproviderSingleton(); + await profilerSubprovider.writeProfilerOutputAsync(); + } + provider.stop(); +}); diff --git a/contracts/core/test/multisig/asset_proxy_owner.ts b/contracts/core/test/multisig/asset_proxy_owner.ts new file mode 100644 index 000000000..daebfb7fb --- /dev/null +++ b/contracts/core/test/multisig/asset_proxy_owner.ts @@ -0,0 +1,506 @@ +import { + chaiSetup, + constants, + expectContractCallFailedAsync, + expectContractCreationFailedAsync, + expectTransactionFailedAsync, + expectTransactionFailedWithoutReasonAsync, + increaseTimeAndMineBlockAsync, + provider, + sendTransactionResult, + txDefaults, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { RevertReason } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import * as chai from 'chai'; +import { LogWithDecodedArgs } from 'ethereum-types'; + +import { + AssetProxyOwnerAssetProxyRegistrationEventArgs, + AssetProxyOwnerContract, + AssetProxyOwnerExecutionEventArgs, + AssetProxyOwnerExecutionFailureEventArgs, + AssetProxyOwnerSubmissionEventArgs, +} from '../../generated-wrappers/asset_proxy_owner'; +import { MixinAuthorizableContract } from '../../generated-wrappers/mixin_authorizable'; +import { TestAssetProxyOwnerContract } from '../../generated-wrappers/test_asset_proxy_owner'; +import { artifacts } from '../../src/artifacts'; +import { AssetProxyOwnerWrapper } from '../utils/asset_proxy_owner_wrapper'; + +chaiSetup.configure(); +const expect = chai.expect; +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); +// tslint:disable:no-unnecessary-type-assertion +describe('AssetProxyOwner', () => { + let owners: string[]; + let authorized: string; + let notOwner: string; + const REQUIRED_APPROVALS = new BigNumber(2); + const SECONDS_TIME_LOCKED = new BigNumber(1000000); + + let erc20Proxy: MixinAuthorizableContract; + let erc721Proxy: MixinAuthorizableContract; + let testAssetProxyOwner: TestAssetProxyOwnerContract; + let assetProxyOwnerWrapper: AssetProxyOwnerWrapper; + + before(async () => { + await blockchainLifecycle.startAsync(); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + before(async () => { + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + owners = [accounts[0], accounts[1]]; + authorized = accounts[2]; + notOwner = accounts[3]; + const initialOwner = accounts[0]; + erc20Proxy = await MixinAuthorizableContract.deployFrom0xArtifactAsync( + artifacts.MixinAuthorizable, + provider, + txDefaults, + ); + erc721Proxy = await MixinAuthorizableContract.deployFrom0xArtifactAsync( + artifacts.MixinAuthorizable, + provider, + txDefaults, + ); + const defaultAssetProxyContractAddresses: string[] = []; + testAssetProxyOwner = await TestAssetProxyOwnerContract.deployFrom0xArtifactAsync( + artifacts.TestAssetProxyOwner, + provider, + txDefaults, + owners, + defaultAssetProxyContractAddresses, + REQUIRED_APPROVALS, + SECONDS_TIME_LOCKED, + ); + assetProxyOwnerWrapper = new AssetProxyOwnerWrapper(testAssetProxyOwner, provider); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Proxy.transferOwnership.sendTransactionAsync(testAssetProxyOwner.address, { + from: initialOwner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Proxy.transferOwnership.sendTransactionAsync(testAssetProxyOwner.address, { + from: initialOwner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + }); + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + + describe('constructor', () => { + it('should register passed in assetProxyContracts', async () => { + const assetProxyContractAddresses = [erc20Proxy.address, erc721Proxy.address]; + const newMultiSig = await AssetProxyOwnerContract.deployFrom0xArtifactAsync( + artifacts.AssetProxyOwner, + provider, + txDefaults, + owners, + assetProxyContractAddresses, + REQUIRED_APPROVALS, + SECONDS_TIME_LOCKED, + ); + const isErc20ProxyRegistered = await newMultiSig.isAssetProxyRegistered.callAsync(erc20Proxy.address); + const isErc721ProxyRegistered = await newMultiSig.isAssetProxyRegistered.callAsync(erc721Proxy.address); + expect(isErc20ProxyRegistered).to.equal(true); + expect(isErc721ProxyRegistered).to.equal(true); + }); + it('should throw if a null address is included in assetProxyContracts', async () => { + const assetProxyContractAddresses = [erc20Proxy.address, constants.NULL_ADDRESS]; + return expectContractCreationFailedAsync( + (AssetProxyOwnerContract.deployFrom0xArtifactAsync( + artifacts.AssetProxyOwner, + provider, + txDefaults, + owners, + assetProxyContractAddresses, + REQUIRED_APPROVALS, + SECONDS_TIME_LOCKED, + ) as any) as sendTransactionResult, + RevertReason.InvalidAssetProxy, + ); + }); + }); + + describe('isFunctionRemoveAuthorizedAddressAtIndex', () => { + it('should return false if data is not for removeAuthorizedAddressAtIndex', async () => { + const notRemoveAuthorizedAddressData = erc20Proxy.addAuthorizedAddress.getABIEncodedTransactionData( + owners[0], + ); + + const isFunctionRemoveAuthorizedAddressAtIndex = await testAssetProxyOwner.isFunctionRemoveAuthorizedAddressAtIndex.callAsync( + notRemoveAuthorizedAddressData, + ); + expect(isFunctionRemoveAuthorizedAddressAtIndex).to.be.false(); + }); + + it('should return true if data is for removeAuthorizedAddressAtIndex', async () => { + const index = new BigNumber(0); + const removeAuthorizedAddressAtIndexData = erc20Proxy.removeAuthorizedAddressAtIndex.getABIEncodedTransactionData( + owners[0], + index, + ); + const isFunctionRemoveAuthorizedAddressAtIndex = await testAssetProxyOwner.isFunctionRemoveAuthorizedAddressAtIndex.callAsync( + removeAuthorizedAddressAtIndexData, + ); + expect(isFunctionRemoveAuthorizedAddressAtIndex).to.be.true(); + }); + }); + + describe('registerAssetProxy', () => { + it('should throw if not called by multisig', async () => { + const isRegistered = true; + return expectTransactionFailedWithoutReasonAsync( + testAssetProxyOwner.registerAssetProxy.sendTransactionAsync(erc20Proxy.address, isRegistered, { + from: owners[0], + }), + ); + }); + + it('should register an address if called by multisig after timelock', async () => { + const addressToRegister = erc20Proxy.address; + const isRegistered = true; + const registerAssetProxyData = testAssetProxyOwner.registerAssetProxy.getABIEncodedTransactionData( + addressToRegister, + isRegistered, + ); + const submitTxRes = await assetProxyOwnerWrapper.submitTransactionAsync( + testAssetProxyOwner.address, + registerAssetProxyData, + owners[0], + ); + + const log = submitTxRes.logs[0] as LogWithDecodedArgs<AssetProxyOwnerSubmissionEventArgs>; + const txId = log.args.transactionId; + + await assetProxyOwnerWrapper.confirmTransactionAsync(txId, owners[1]); + await increaseTimeAndMineBlockAsync(SECONDS_TIME_LOCKED.toNumber()); + + const executeTxRes = await assetProxyOwnerWrapper.executeTransactionAsync(txId, owners[0]); + const registerLog = executeTxRes.logs[0] as LogWithDecodedArgs< + AssetProxyOwnerAssetProxyRegistrationEventArgs + >; + expect(registerLog.args.assetProxyContract).to.equal(addressToRegister); + expect(registerLog.args.isRegistered).to.equal(isRegistered); + + const isAssetProxyRegistered = await testAssetProxyOwner.isAssetProxyRegistered.callAsync( + addressToRegister, + ); + expect(isAssetProxyRegistered).to.equal(isRegistered); + }); + + it('should fail if registering a null address', async () => { + const addressToRegister = constants.NULL_ADDRESS; + const isRegistered = true; + const registerAssetProxyData = testAssetProxyOwner.registerAssetProxy.getABIEncodedTransactionData( + addressToRegister, + isRegistered, + ); + const submitTxRes = await assetProxyOwnerWrapper.submitTransactionAsync( + testAssetProxyOwner.address, + registerAssetProxyData, + owners[0], + ); + const log = submitTxRes.logs[0] as LogWithDecodedArgs<AssetProxyOwnerSubmissionEventArgs>; + const txId = log.args.transactionId; + + await assetProxyOwnerWrapper.confirmTransactionAsync(txId, owners[1]); + await increaseTimeAndMineBlockAsync(SECONDS_TIME_LOCKED.toNumber()); + + const executeTxRes = await assetProxyOwnerWrapper.executeTransactionAsync(txId, owners[0]); + const failureLog = executeTxRes.logs[0] as LogWithDecodedArgs<AssetProxyOwnerExecutionFailureEventArgs>; + expect(failureLog.args.transactionId).to.be.bignumber.equal(txId); + + const isAssetProxyRegistered = await testAssetProxyOwner.isAssetProxyRegistered.callAsync( + addressToRegister, + ); + expect(isAssetProxyRegistered).to.equal(false); + }); + }); + + describe('Calling removeAuthorizedAddressAtIndex', () => { + const erc20Index = new BigNumber(0); + const erc721Index = new BigNumber(1); + before('authorize both proxies and register erc20 proxy', async () => { + // Only register ERC20 proxy + const addressToRegister = erc20Proxy.address; + const isRegistered = true; + const registerAssetProxyData = testAssetProxyOwner.registerAssetProxy.getABIEncodedTransactionData( + addressToRegister, + isRegistered, + ); + const registerAssetProxySubmitRes = await assetProxyOwnerWrapper.submitTransactionAsync( + testAssetProxyOwner.address, + registerAssetProxyData, + owners[0], + ); + const registerAssetProxySubmitLog = registerAssetProxySubmitRes.logs[0] as LogWithDecodedArgs< + AssetProxyOwnerSubmissionEventArgs + >; + + const addAuthorizedAddressData = erc20Proxy.addAuthorizedAddress.getABIEncodedTransactionData(authorized); + const erc20AddAuthorizedAddressSubmitRes = await assetProxyOwnerWrapper.submitTransactionAsync( + erc20Proxy.address, + addAuthorizedAddressData, + owners[0], + ); + const erc721AddAuthorizedAddressSubmitRes = await assetProxyOwnerWrapper.submitTransactionAsync( + erc721Proxy.address, + addAuthorizedAddressData, + owners[0], + ); + const erc20AddAuthorizedAddressSubmitLog = erc20AddAuthorizedAddressSubmitRes.logs[0] as LogWithDecodedArgs< + AssetProxyOwnerSubmissionEventArgs + >; + const erc721AddAuthorizedAddressSubmitLog = erc721AddAuthorizedAddressSubmitRes + .logs[0] as LogWithDecodedArgs<AssetProxyOwnerSubmissionEventArgs>; + + const registerAssetProxyTxId = registerAssetProxySubmitLog.args.transactionId; + const erc20AddAuthorizedAddressTxId = erc20AddAuthorizedAddressSubmitLog.args.transactionId; + const erc721AddAuthorizedAddressTxId = erc721AddAuthorizedAddressSubmitLog.args.transactionId; + + await assetProxyOwnerWrapper.confirmTransactionAsync(registerAssetProxyTxId, owners[1]); + await assetProxyOwnerWrapper.confirmTransactionAsync(erc20AddAuthorizedAddressTxId, owners[1]); + await assetProxyOwnerWrapper.confirmTransactionAsync(erc721AddAuthorizedAddressTxId, owners[1]); + await increaseTimeAndMineBlockAsync(SECONDS_TIME_LOCKED.toNumber()); + await assetProxyOwnerWrapper.executeTransactionAsync(registerAssetProxyTxId, owners[0]); + await assetProxyOwnerWrapper.executeTransactionAsync(erc20AddAuthorizedAddressTxId, owners[0], { + gas: constants.MAX_EXECUTE_TRANSACTION_GAS, + }); + await assetProxyOwnerWrapper.executeTransactionAsync(erc721AddAuthorizedAddressTxId, owners[0], { + gas: constants.MAX_EXECUTE_TRANSACTION_GAS, + }); + }); + + describe('validRemoveAuthorizedAddressAtIndexTx', () => { + it('should revert if data is not for removeAuthorizedAddressAtIndex and proxy is registered', async () => { + const notRemoveAuthorizedAddressData = erc20Proxy.addAuthorizedAddress.getABIEncodedTransactionData( + authorized, + ); + const submitTxRes = await assetProxyOwnerWrapper.submitTransactionAsync( + erc20Proxy.address, + notRemoveAuthorizedAddressData, + owners[0], + ); + const log = submitTxRes.logs[0] as LogWithDecodedArgs<AssetProxyOwnerSubmissionEventArgs>; + const txId = log.args.transactionId; + return expectContractCallFailedAsync( + testAssetProxyOwner.testValidRemoveAuthorizedAddressAtIndexTx.callAsync(txId), + RevertReason.InvalidFunctionSelector, + ); + }); + + it('should return true if data is for removeAuthorizedAddressAtIndex and proxy is registered', async () => { + const removeAuthorizedAddressAtIndexData = erc20Proxy.removeAuthorizedAddressAtIndex.getABIEncodedTransactionData( + authorized, + erc20Index, + ); + const submitTxRes = await assetProxyOwnerWrapper.submitTransactionAsync( + erc20Proxy.address, + removeAuthorizedAddressAtIndexData, + owners[0], + ); + const log = submitTxRes.logs[0] as LogWithDecodedArgs<AssetProxyOwnerSubmissionEventArgs>; + const txId = log.args.transactionId; + const isValidRemoveAuthorizedAddressAtIndexTx = await testAssetProxyOwner.testValidRemoveAuthorizedAddressAtIndexTx.callAsync( + txId, + ); + expect(isValidRemoveAuthorizedAddressAtIndexTx).to.be.true(); + }); + + it('should revert if data is for removeAuthorizedAddressAtIndex and proxy is not registered', async () => { + const removeAuthorizedAddressAtIndexData = erc721Proxy.removeAuthorizedAddressAtIndex.getABIEncodedTransactionData( + authorized, + erc721Index, + ); + const submitTxRes = await assetProxyOwnerWrapper.submitTransactionAsync( + erc721Proxy.address, + removeAuthorizedAddressAtIndexData, + owners[0], + ); + const log = submitTxRes.logs[0] as LogWithDecodedArgs<AssetProxyOwnerSubmissionEventArgs>; + const txId = log.args.transactionId; + return expectContractCallFailedAsync( + testAssetProxyOwner.testValidRemoveAuthorizedAddressAtIndexTx.callAsync(txId), + RevertReason.UnregisteredAssetProxy, + ); + }); + }); + + describe('executeRemoveAuthorizedAddressAtIndex', () => { + it('should throw without the required confirmations', async () => { + const removeAuthorizedAddressAtIndexData = erc20Proxy.removeAuthorizedAddressAtIndex.getABIEncodedTransactionData( + authorized, + erc20Index, + ); + const res = await assetProxyOwnerWrapper.submitTransactionAsync( + erc20Proxy.address, + removeAuthorizedAddressAtIndexData, + owners[0], + ); + const log = res.logs[0] as LogWithDecodedArgs<AssetProxyOwnerSubmissionEventArgs>; + const txId = log.args.transactionId; + + return expectTransactionFailedAsync( + testAssetProxyOwner.executeRemoveAuthorizedAddressAtIndex.sendTransactionAsync(txId, { + from: owners[1], + }), + RevertReason.TxNotFullyConfirmed, + ); + }); + + it('should throw if tx destination is not registered', async () => { + const removeAuthorizedAddressAtIndexData = erc721Proxy.removeAuthorizedAddressAtIndex.getABIEncodedTransactionData( + authorized, + erc721Index, + ); + const res = await assetProxyOwnerWrapper.submitTransactionAsync( + erc721Proxy.address, + removeAuthorizedAddressAtIndexData, + owners[0], + ); + const log = res.logs[0] as LogWithDecodedArgs<AssetProxyOwnerSubmissionEventArgs>; + const txId = log.args.transactionId; + + await assetProxyOwnerWrapper.confirmTransactionAsync(txId, owners[1]); + + return expectTransactionFailedAsync( + testAssetProxyOwner.executeRemoveAuthorizedAddressAtIndex.sendTransactionAsync(txId, { + from: owners[1], + }), + RevertReason.UnregisteredAssetProxy, + ); + }); + + it('should throw if tx data is not for removeAuthorizedAddressAtIndex', async () => { + const newAuthorized = owners[1]; + const addAuthorizedAddressData = erc20Proxy.addAuthorizedAddress.getABIEncodedTransactionData( + newAuthorized, + ); + const res = await assetProxyOwnerWrapper.submitTransactionAsync( + erc20Proxy.address, + addAuthorizedAddressData, + owners[0], + ); + const log = res.logs[0] as LogWithDecodedArgs<AssetProxyOwnerSubmissionEventArgs>; + const txId = log.args.transactionId; + + await assetProxyOwnerWrapper.confirmTransactionAsync(txId, owners[1]); + + return expectTransactionFailedAsync( + testAssetProxyOwner.executeRemoveAuthorizedAddressAtIndex.sendTransactionAsync(txId, { + from: owners[1], + }), + RevertReason.InvalidFunctionSelector, + ); + }); + + it('should execute removeAuthorizedAddressAtIndex for registered address if fully confirmed and called by owner', async () => { + const isAuthorizedBefore = await erc20Proxy.authorized.callAsync(authorized); + expect(isAuthorizedBefore).to.equal(true); + + const removeAuthorizedAddressAtIndexData = erc20Proxy.removeAuthorizedAddressAtIndex.getABIEncodedTransactionData( + authorized, + erc20Index, + ); + const submitRes = await assetProxyOwnerWrapper.submitTransactionAsync( + erc20Proxy.address, + removeAuthorizedAddressAtIndexData, + owners[0], + ); + const submitLog = submitRes.logs[0] as LogWithDecodedArgs<AssetProxyOwnerSubmissionEventArgs>; + const txId = submitLog.args.transactionId; + + await assetProxyOwnerWrapper.confirmTransactionAsync(txId, owners[1]); + + const execRes = await assetProxyOwnerWrapper.executeRemoveAuthorizedAddressAtIndexAsync( + txId, + owners[0], + ); + const execLog = execRes.logs[1] as LogWithDecodedArgs<AssetProxyOwnerExecutionEventArgs>; + expect(execLog.args.transactionId).to.be.bignumber.equal(txId); + + const tx = await testAssetProxyOwner.transactions.callAsync(txId); + const isExecuted = tx[3]; + expect(isExecuted).to.equal(true); + + const isAuthorizedAfter = await erc20Proxy.authorized.callAsync(authorized); + expect(isAuthorizedAfter).to.equal(false); + }); + + it('should execute removeAuthorizedAddressAtIndex for registered address if fully confirmed and called by non-owner', async () => { + const isAuthorizedBefore = await erc20Proxy.authorized.callAsync(authorized); + expect(isAuthorizedBefore).to.equal(true); + + const removeAuthorizedAddressAtIndexData = erc20Proxy.removeAuthorizedAddressAtIndex.getABIEncodedTransactionData( + authorized, + erc20Index, + ); + const submitRes = await assetProxyOwnerWrapper.submitTransactionAsync( + erc20Proxy.address, + removeAuthorizedAddressAtIndexData, + owners[0], + ); + const submitLog = submitRes.logs[0] as LogWithDecodedArgs<AssetProxyOwnerSubmissionEventArgs>; + const txId = submitLog.args.transactionId; + + await assetProxyOwnerWrapper.confirmTransactionAsync(txId, owners[1]); + + const execRes = await assetProxyOwnerWrapper.executeRemoveAuthorizedAddressAtIndexAsync(txId, notOwner); + const execLog = execRes.logs[1] as LogWithDecodedArgs<AssetProxyOwnerExecutionEventArgs>; + expect(execLog.args.transactionId).to.be.bignumber.equal(txId); + + const tx = await testAssetProxyOwner.transactions.callAsync(txId); + const isExecuted = tx[3]; + expect(isExecuted).to.equal(true); + + const isAuthorizedAfter = await erc20Proxy.authorized.callAsync(authorized); + expect(isAuthorizedAfter).to.equal(false); + }); + + it('should throw if already executed', async () => { + const removeAuthorizedAddressAtIndexData = erc20Proxy.removeAuthorizedAddressAtIndex.getABIEncodedTransactionData( + authorized, + erc20Index, + ); + const submitRes = await assetProxyOwnerWrapper.submitTransactionAsync( + erc20Proxy.address, + removeAuthorizedAddressAtIndexData, + owners[0], + ); + const submitLog = submitRes.logs[0] as LogWithDecodedArgs<AssetProxyOwnerSubmissionEventArgs>; + const txId = submitLog.args.transactionId; + + await assetProxyOwnerWrapper.confirmTransactionAsync(txId, owners[1]); + + const execRes = await assetProxyOwnerWrapper.executeRemoveAuthorizedAddressAtIndexAsync( + txId, + owners[0], + ); + const execLog = execRes.logs[1] as LogWithDecodedArgs<AssetProxyOwnerExecutionEventArgs>; + expect(execLog.args.transactionId).to.be.bignumber.equal(txId); + + const tx = await testAssetProxyOwner.transactions.callAsync(txId); + const isExecuted = tx[3]; + expect(isExecuted).to.equal(true); + + return expectTransactionFailedWithoutReasonAsync( + testAssetProxyOwner.executeRemoveAuthorizedAddressAtIndex.sendTransactionAsync(txId, { + from: owners[1], + }), + ); + }); + }); + }); +}); +// tslint:disable-line max-file-line-count diff --git a/contracts/core/test/tokens/erc721_token.ts b/contracts/core/test/tokens/erc721_token.ts new file mode 100644 index 000000000..3b0a5f001 --- /dev/null +++ b/contracts/core/test/tokens/erc721_token.ts @@ -0,0 +1,284 @@ +import { + chaiSetup, + constants, + expectTransactionFailedAsync, + expectTransactionFailedWithoutReasonAsync, + LogDecoder, + provider, + txDefaults, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { RevertReason } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import * as chai from 'chai'; +import { LogWithDecodedArgs } from 'ethereum-types'; + +import { + DummyERC721ReceiverContract, + DummyERC721ReceiverTokenReceivedEventArgs, +} from '../../generated-wrappers/dummy_erc721_receiver'; +import { + DummyERC721TokenContract, + DummyERC721TokenTransferEventArgs, +} from '../../generated-wrappers/dummy_erc721_token'; +import { InvalidERC721ReceiverContract } from '../../generated-wrappers/invalid_erc721_receiver'; +import { artifacts } from '../../src/artifacts'; + +chaiSetup.configure(); +const expect = chai.expect; +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); +// tslint:disable:no-unnecessary-type-assertion +describe('ERC721Token', () => { + let owner: string; + let spender: string; + let token: DummyERC721TokenContract; + let erc721Receiver: DummyERC721ReceiverContract; + let logDecoder: LogDecoder; + const tokenId = new BigNumber(1); + before(async () => { + await blockchainLifecycle.startAsync(); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + before(async () => { + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + owner = accounts[0]; + spender = accounts[1]; + token = await DummyERC721TokenContract.deployFrom0xArtifactAsync( + artifacts.DummyERC721Token, + provider, + txDefaults, + constants.DUMMY_TOKEN_NAME, + constants.DUMMY_TOKEN_SYMBOL, + ); + erc721Receiver = await DummyERC721ReceiverContract.deployFrom0xArtifactAsync( + artifacts.DummyERC721Receiver, + provider, + txDefaults, + ); + logDecoder = new LogDecoder(web3Wrapper, artifacts); + await web3Wrapper.awaitTransactionSuccessAsync( + await token.mint.sendTransactionAsync(owner, tokenId, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + }); + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + + describe('transferFrom', () => { + it('should revert if the tokenId is not owner', async () => { + const from = owner; + const to = erc721Receiver.address; + const unownedTokenId = new BigNumber(2); + await expectTransactionFailedAsync( + token.transferFrom.sendTransactionAsync(from, to, unownedTokenId), + RevertReason.Erc721ZeroOwner, + ); + }); + it('should revert if transferring to a null address', async () => { + const from = owner; + const to = constants.NULL_ADDRESS; + await expectTransactionFailedAsync( + token.transferFrom.sendTransactionAsync(from, to, tokenId), + RevertReason.Erc721ZeroToAddress, + ); + }); + it('should revert if the from address does not own the token', async () => { + const from = spender; + const to = erc721Receiver.address; + await expectTransactionFailedAsync( + token.transferFrom.sendTransactionAsync(from, to, tokenId), + RevertReason.Erc721OwnerMismatch, + ); + }); + it('should revert if spender does not own the token, is not approved, and is not approved for all', async () => { + const from = owner; + const to = erc721Receiver.address; + await expectTransactionFailedAsync( + token.transferFrom.sendTransactionAsync(from, to, tokenId, { from: spender }), + RevertReason.Erc721InvalidSpender, + ); + }); + it('should transfer the token if called by owner', async () => { + const from = owner; + const to = erc721Receiver.address; + const txReceipt = await logDecoder.getTxWithDecodedLogsAsync( + await token.transferFrom.sendTransactionAsync(from, to, tokenId), + ); + const newOwner = await token.ownerOf.callAsync(tokenId); + expect(newOwner).to.be.equal(to); + const log = txReceipt.logs[0] as LogWithDecodedArgs<DummyERC721TokenTransferEventArgs>; + expect(log.args._from).to.be.equal(from); + expect(log.args._to).to.be.equal(to); + expect(log.args._tokenId).to.be.bignumber.equal(tokenId); + }); + it('should transfer the token if spender is approved for all', async () => { + const isApproved = true; + await web3Wrapper.awaitTransactionSuccessAsync( + await token.setApprovalForAll.sendTransactionAsync(spender, isApproved), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const from = owner; + const to = erc721Receiver.address; + const txReceipt = await logDecoder.getTxWithDecodedLogsAsync( + await token.transferFrom.sendTransactionAsync(from, to, tokenId), + ); + const newOwner = await token.ownerOf.callAsync(tokenId); + expect(newOwner).to.be.equal(to); + const log = txReceipt.logs[0] as LogWithDecodedArgs<DummyERC721TokenTransferEventArgs>; + expect(log.args._from).to.be.equal(from); + expect(log.args._to).to.be.equal(to); + expect(log.args._tokenId).to.be.bignumber.equal(tokenId); + }); + it('should transfer the token if spender is individually approved', async () => { + await web3Wrapper.awaitTransactionSuccessAsync( + await token.approve.sendTransactionAsync(spender, tokenId), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const from = owner; + const to = erc721Receiver.address; + const txReceipt = await logDecoder.getTxWithDecodedLogsAsync( + await token.transferFrom.sendTransactionAsync(from, to, tokenId), + ); + const newOwner = await token.ownerOf.callAsync(tokenId); + expect(newOwner).to.be.equal(to); + + const approvedAddress = await token.getApproved.callAsync(tokenId); + expect(approvedAddress).to.be.equal(constants.NULL_ADDRESS); + const log = txReceipt.logs[0] as LogWithDecodedArgs<DummyERC721TokenTransferEventArgs>; + expect(log.args._from).to.be.equal(from); + expect(log.args._to).to.be.equal(to); + expect(log.args._tokenId).to.be.bignumber.equal(tokenId); + }); + }); + describe('safeTransferFrom without data', () => { + it('should transfer token to a non-contract address if called by owner', async () => { + const from = owner; + const to = spender; + const txReceipt = await logDecoder.getTxWithDecodedLogsAsync( + await token.safeTransferFrom1.sendTransactionAsync(from, to, tokenId), + ); + const newOwner = await token.ownerOf.callAsync(tokenId); + expect(newOwner).to.be.equal(to); + const log = txReceipt.logs[0] as LogWithDecodedArgs<DummyERC721TokenTransferEventArgs>; + expect(log.args._from).to.be.equal(from); + expect(log.args._to).to.be.equal(to); + expect(log.args._tokenId).to.be.bignumber.equal(tokenId); + }); + it('should revert if transferring to a contract address without onERC721Received', async () => { + const contract = await DummyERC721TokenContract.deployFrom0xArtifactAsync( + artifacts.DummyERC721Token, + provider, + txDefaults, + constants.DUMMY_TOKEN_NAME, + constants.DUMMY_TOKEN_SYMBOL, + ); + const from = owner; + const to = contract.address; + await expectTransactionFailedWithoutReasonAsync( + token.safeTransferFrom1.sendTransactionAsync(from, to, tokenId), + ); + }); + it('should revert if onERC721Received does not return the correct value', async () => { + const invalidErc721Receiver = await InvalidERC721ReceiverContract.deployFrom0xArtifactAsync( + artifacts.InvalidERC721Receiver, + provider, + txDefaults, + ); + const from = owner; + const to = invalidErc721Receiver.address; + await expectTransactionFailedAsync( + token.safeTransferFrom1.sendTransactionAsync(from, to, tokenId), + RevertReason.Erc721InvalidSelector, + ); + }); + it('should transfer to contract and call onERC721Received with correct return value', async () => { + const from = owner; + const to = erc721Receiver.address; + const txReceipt = await logDecoder.getTxWithDecodedLogsAsync( + await token.safeTransferFrom1.sendTransactionAsync(from, to, tokenId), + ); + const newOwner = await token.ownerOf.callAsync(tokenId); + expect(newOwner).to.be.equal(to); + const transferLog = txReceipt.logs[0] as LogWithDecodedArgs<DummyERC721TokenTransferEventArgs>; + const receiverLog = txReceipt.logs[1] as LogWithDecodedArgs<DummyERC721ReceiverTokenReceivedEventArgs>; + expect(transferLog.args._from).to.be.equal(from); + expect(transferLog.args._to).to.be.equal(to); + expect(transferLog.args._tokenId).to.be.bignumber.equal(tokenId); + expect(receiverLog.args.operator).to.be.equal(owner); + expect(receiverLog.args.from).to.be.equal(from); + expect(receiverLog.args.tokenId).to.be.bignumber.equal(tokenId); + expect(receiverLog.args.data).to.be.equal(constants.NULL_BYTES); + }); + }); + describe('safeTransferFrom with data', () => { + const data = '0x0102030405060708090a0b0c0d0e0f'; + it('should transfer token to a non-contract address if called by owner', async () => { + const from = owner; + const to = spender; + const txReceipt = await logDecoder.getTxWithDecodedLogsAsync( + await token.safeTransferFrom2.sendTransactionAsync(from, to, tokenId, data), + ); + const newOwner = await token.ownerOf.callAsync(tokenId); + expect(newOwner).to.be.equal(to); + const log = txReceipt.logs[0] as LogWithDecodedArgs<DummyERC721TokenTransferEventArgs>; + expect(log.args._from).to.be.equal(from); + expect(log.args._to).to.be.equal(to); + expect(log.args._tokenId).to.be.bignumber.equal(tokenId); + }); + it('should revert if transferring to a contract address without onERC721Received', async () => { + const contract = await DummyERC721TokenContract.deployFrom0xArtifactAsync( + artifacts.DummyERC721Token, + provider, + txDefaults, + constants.DUMMY_TOKEN_NAME, + constants.DUMMY_TOKEN_SYMBOL, + ); + const from = owner; + const to = contract.address; + await expectTransactionFailedWithoutReasonAsync( + token.safeTransferFrom2.sendTransactionAsync(from, to, tokenId, data), + ); + }); + it('should revert if onERC721Received does not return the correct value', async () => { + const invalidErc721Receiver = await InvalidERC721ReceiverContract.deployFrom0xArtifactAsync( + artifacts.InvalidERC721Receiver, + provider, + txDefaults, + ); + const from = owner; + const to = invalidErc721Receiver.address; + await expectTransactionFailedAsync( + token.safeTransferFrom2.sendTransactionAsync(from, to, tokenId, data), + RevertReason.Erc721InvalidSelector, + ); + }); + it('should transfer to contract and call onERC721Received with correct return value', async () => { + const from = owner; + const to = erc721Receiver.address; + const txReceipt = await logDecoder.getTxWithDecodedLogsAsync( + await token.safeTransferFrom2.sendTransactionAsync(from, to, tokenId, data), + ); + const newOwner = await token.ownerOf.callAsync(tokenId); + expect(newOwner).to.be.equal(to); + const transferLog = txReceipt.logs[0] as LogWithDecodedArgs<DummyERC721TokenTransferEventArgs>; + const receiverLog = txReceipt.logs[1] as LogWithDecodedArgs<DummyERC721ReceiverTokenReceivedEventArgs>; + expect(transferLog.args._from).to.be.equal(from); + expect(transferLog.args._to).to.be.equal(to); + expect(transferLog.args._tokenId).to.be.bignumber.equal(tokenId); + expect(receiverLog.args.operator).to.be.equal(owner); + expect(receiverLog.args.from).to.be.equal(from); + expect(receiverLog.args.tokenId).to.be.bignumber.equal(tokenId); + expect(receiverLog.args.data).to.be.equal(data); + }); + }); +}); +// tslint:enable:no-unnecessary-type-assertion diff --git a/contracts/core/test/tokens/unlimited_allowance_token.ts b/contracts/core/test/tokens/unlimited_allowance_token.ts new file mode 100644 index 000000000..c3e4072c5 --- /dev/null +++ b/contracts/core/test/tokens/unlimited_allowance_token.ts @@ -0,0 +1,195 @@ +import { + chaiSetup, + constants, + expectContractCallFailedAsync, + provider, + txDefaults, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { RevertReason } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import * as chai from 'chai'; + +import { DummyERC20TokenContract } from '../../generated-wrappers/dummy_erc20_token'; +import { artifacts } from '../../src/artifacts'; + +chaiSetup.configure(); +const expect = chai.expect; +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); + +describe('UnlimitedAllowanceToken', () => { + let owner: string; + let spender: string; + const MAX_MINT_VALUE = new BigNumber(10000000000000000000000); + let token: DummyERC20TokenContract; + + before(async () => { + await blockchainLifecycle.startAsync(); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + before(async () => { + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + owner = accounts[0]; + spender = accounts[1]; + token = await DummyERC20TokenContract.deployFrom0xArtifactAsync( + artifacts.DummyERC20Token, + provider, + txDefaults, + constants.DUMMY_TOKEN_NAME, + constants.DUMMY_TOKEN_SYMBOL, + constants.DUMMY_TOKEN_DECIMALS, + constants.DUMMY_TOKEN_TOTAL_SUPPLY, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await token.mint.sendTransactionAsync(MAX_MINT_VALUE, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + }); + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + describe('transfer', () => { + it('should throw if owner has insufficient balance', async () => { + const ownerBalance = await token.balanceOf.callAsync(owner); + const amountToTransfer = ownerBalance.plus(1); + return expectContractCallFailedAsync( + token.transfer.callAsync(spender, amountToTransfer, { from: owner }), + RevertReason.Erc20InsufficientBalance, + ); + }); + + it('should transfer balance from sender to receiver', async () => { + const receiver = spender; + const initOwnerBalance = await token.balanceOf.callAsync(owner); + const amountToTransfer = new BigNumber(1); + await web3Wrapper.awaitTransactionSuccessAsync( + await token.transfer.sendTransactionAsync(receiver, amountToTransfer, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const finalOwnerBalance = await token.balanceOf.callAsync(owner); + const finalReceiverBalance = await token.balanceOf.callAsync(receiver); + + const expectedFinalOwnerBalance = initOwnerBalance.minus(amountToTransfer); + const expectedFinalReceiverBalance = amountToTransfer; + expect(finalOwnerBalance).to.be.bignumber.equal(expectedFinalOwnerBalance); + expect(finalReceiverBalance).to.be.bignumber.equal(expectedFinalReceiverBalance); + }); + + it('should return true on a 0 value transfer', async () => { + const didReturnTrue = await token.transfer.callAsync(spender, new BigNumber(0), { + from: owner, + }); + expect(didReturnTrue).to.be.true(); + }); + }); + + describe('transferFrom', () => { + it('should throw if owner has insufficient balance', async () => { + const ownerBalance = await token.balanceOf.callAsync(owner); + const amountToTransfer = ownerBalance.plus(1); + await web3Wrapper.awaitTransactionSuccessAsync( + await token.approve.sendTransactionAsync(spender, amountToTransfer, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + return expectContractCallFailedAsync( + token.transferFrom.callAsync(owner, spender, amountToTransfer, { + from: spender, + }), + RevertReason.Erc20InsufficientBalance, + ); + }); + + it('should throw if spender has insufficient allowance', async () => { + const ownerBalance = await token.balanceOf.callAsync(owner); + const amountToTransfer = ownerBalance; + + const spenderAllowance = await token.allowance.callAsync(owner, spender); + const isSpenderAllowanceInsufficient = spenderAllowance.cmp(amountToTransfer) < 0; + expect(isSpenderAllowanceInsufficient).to.be.true(); + + return expectContractCallFailedAsync( + token.transferFrom.callAsync(owner, spender, amountToTransfer, { + from: spender, + }), + RevertReason.Erc20InsufficientAllowance, + ); + }); + + it('should return true on a 0 value transfer', async () => { + const amountToTransfer = new BigNumber(0); + const didReturnTrue = await token.transferFrom.callAsync(owner, spender, amountToTransfer, { + from: spender, + }); + expect(didReturnTrue).to.be.true(); + }); + + it('should not modify spender allowance if spender allowance is 2^256 - 1', async () => { + const initOwnerBalance = await token.balanceOf.callAsync(owner); + const amountToTransfer = initOwnerBalance; + const initSpenderAllowance = constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS; + await web3Wrapper.awaitTransactionSuccessAsync( + await token.approve.sendTransactionAsync(spender, initSpenderAllowance, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await token.transferFrom.sendTransactionAsync(owner, spender, amountToTransfer, { + from: spender, + gas: constants.MAX_TOKEN_TRANSFERFROM_GAS, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const newSpenderAllowance = await token.allowance.callAsync(owner, spender); + expect(initSpenderAllowance).to.be.bignumber.equal(newSpenderAllowance); + }); + + it('should transfer the correct balances if spender has sufficient allowance', async () => { + const initOwnerBalance = await token.balanceOf.callAsync(owner); + const amountToTransfer = initOwnerBalance; + const initSpenderAllowance = initOwnerBalance; + await web3Wrapper.awaitTransactionSuccessAsync( + await token.approve.sendTransactionAsync(spender, initSpenderAllowance, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await token.transferFrom.sendTransactionAsync(owner, spender, amountToTransfer, { + from: spender, + gas: constants.MAX_TOKEN_TRANSFERFROM_GAS, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const newOwnerBalance = await token.balanceOf.callAsync(owner); + const newSpenderBalance = await token.balanceOf.callAsync(spender); + + expect(newOwnerBalance).to.be.bignumber.equal(0); + expect(newSpenderBalance).to.be.bignumber.equal(initOwnerBalance); + }); + + it('should modify allowance if spender has sufficient allowance less than 2^256 - 1', async () => { + const initOwnerBalance = await token.balanceOf.callAsync(owner); + const amountToTransfer = initOwnerBalance; + const initSpenderAllowance = initOwnerBalance; + await web3Wrapper.awaitTransactionSuccessAsync( + await token.approve.sendTransactionAsync(spender, initSpenderAllowance, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await token.transferFrom.sendTransactionAsync(owner, spender, amountToTransfer, { + from: spender, + gas: constants.MAX_TOKEN_TRANSFERFROM_GAS, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const newSpenderAllowance = await token.allowance.callAsync(owner, spender); + expect(newSpenderAllowance).to.be.bignumber.equal(0); + }); + }); +}); diff --git a/contracts/core/test/tokens/weth9.ts b/contracts/core/test/tokens/weth9.ts new file mode 100644 index 000000000..225481904 --- /dev/null +++ b/contracts/core/test/tokens/weth9.ts @@ -0,0 +1,143 @@ +import { + chaiSetup, + constants, + expectInsufficientFundsAsync, + expectTransactionFailedWithoutReasonAsync, + provider, + txDefaults, + web3Wrapper, +} from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { BigNumber } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; +import * as chai from 'chai'; + +import { WETH9Contract } from '../../generated-wrappers/weth9'; +import { artifacts } from '../../src/artifacts'; + +chaiSetup.configure(); +const expect = chai.expect; +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); + +describe('EtherToken', () => { + let account: string; + const gasPrice = Web3Wrapper.toBaseUnitAmount(new BigNumber(20), 9); + let etherToken: WETH9Contract; + + before(async () => { + await blockchainLifecycle.startAsync(); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + before(async () => { + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + account = accounts[0]; + + etherToken = await WETH9Contract.deployFrom0xArtifactAsync(artifacts.WETH9, provider, { + gasPrice, + ...txDefaults, + }); + }); + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + describe('deposit', () => { + it('should throw if caller attempts to deposit more Ether than caller balance', async () => { + const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account); + const ethToDeposit = initEthBalance.plus(1); + + return expectInsufficientFundsAsync(etherToken.deposit.sendTransactionAsync({ value: ethToDeposit })); + }); + + it('should convert deposited Ether to wrapped Ether tokens', async () => { + const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account); + const initEthTokenBalance = await etherToken.balanceOf.callAsync(account); + + const ethToDeposit = new BigNumber(Web3Wrapper.toWei(new BigNumber(1))); + + const txHash = await etherToken.deposit.sendTransactionAsync({ value: ethToDeposit }); + const receipt = await web3Wrapper.awaitTransactionSuccessAsync( + txHash, + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const ethSpentOnGas = gasPrice.times(receipt.gasUsed); + const finalEthBalance = await web3Wrapper.getBalanceInWeiAsync(account); + const finalEthTokenBalance = await etherToken.balanceOf.callAsync(account); + + expect(finalEthBalance).to.be.bignumber.equal(initEthBalance.minus(ethToDeposit.plus(ethSpentOnGas))); + expect(finalEthTokenBalance).to.be.bignumber.equal(initEthTokenBalance.plus(ethToDeposit)); + }); + }); + + describe('withdraw', () => { + it('should throw if caller attempts to withdraw greater than caller balance', async () => { + const initEthTokenBalance = await etherToken.balanceOf.callAsync(account); + const ethTokensToWithdraw = initEthTokenBalance.plus(1); + + return expectTransactionFailedWithoutReasonAsync( + etherToken.withdraw.sendTransactionAsync(ethTokensToWithdraw), + ); + }); + + it('should convert ether tokens to ether with sufficient balance', async () => { + const ethToDeposit = new BigNumber(Web3Wrapper.toWei(new BigNumber(1))); + await web3Wrapper.awaitTransactionSuccessAsync( + await etherToken.deposit.sendTransactionAsync({ value: ethToDeposit }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const initEthTokenBalance = await etherToken.balanceOf.callAsync(account); + const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account); + const ethTokensToWithdraw = initEthTokenBalance; + expect(ethTokensToWithdraw).to.not.be.bignumber.equal(0); + const txHash = await etherToken.withdraw.sendTransactionAsync(ethTokensToWithdraw, { + gas: constants.MAX_ETHERTOKEN_WITHDRAW_GAS, + }); + const receipt = await web3Wrapper.awaitTransactionSuccessAsync( + txHash, + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const ethSpentOnGas = gasPrice.times(receipt.gasUsed); + const finalEthBalance = await web3Wrapper.getBalanceInWeiAsync(account); + const finalEthTokenBalance = await etherToken.balanceOf.callAsync(account); + + expect(finalEthBalance).to.be.bignumber.equal( + initEthBalance.plus(ethTokensToWithdraw.minus(ethSpentOnGas)), + ); + expect(finalEthTokenBalance).to.be.bignumber.equal(initEthTokenBalance.minus(ethTokensToWithdraw)); + }); + }); + + describe('fallback', () => { + it('should convert sent ether to ether tokens', async () => { + const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account); + const initEthTokenBalance = await etherToken.balanceOf.callAsync(account); + + const ethToDeposit = Web3Wrapper.toBaseUnitAmount(new BigNumber(1), 18); + + const txHash = await web3Wrapper.sendTransactionAsync({ + from: account, + to: etherToken.address, + value: ethToDeposit, + gasPrice, + }); + + const receipt = await web3Wrapper.awaitTransactionSuccessAsync( + txHash, + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const ethSpentOnGas = gasPrice.times(receipt.gasUsed); + const finalEthBalance = await web3Wrapper.getBalanceInWeiAsync(account); + const finalEthTokenBalance = await etherToken.balanceOf.callAsync(account); + + expect(finalEthBalance).to.be.bignumber.equal(initEthBalance.minus(ethToDeposit.plus(ethSpentOnGas))); + expect(finalEthTokenBalance).to.be.bignumber.equal(initEthTokenBalance.plus(ethToDeposit)); + }); + }); +}); diff --git a/contracts/core/test/tokens/zrx_token.ts b/contracts/core/test/tokens/zrx_token.ts new file mode 100644 index 000000000..6bc5e164c --- /dev/null +++ b/contracts/core/test/tokens/zrx_token.ts @@ -0,0 +1,204 @@ +import { chaiSetup, constants, provider, txDefaults, web3Wrapper } from '@0x/contracts-test-utils'; +import { BlockchainLifecycle } from '@0x/dev-utils'; +import { BigNumber } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; +import * as chai from 'chai'; + +import { ZRXTokenContract } from '../../generated-wrappers/zrx_token'; +import { artifacts } from '../../src/artifacts'; + +chaiSetup.configure(); +const expect = chai.expect; +const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); + +describe('ZRXToken', () => { + let owner: string; + let spender: string; + let MAX_UINT: BigNumber; + let zrxToken: ZRXTokenContract; + + before(async () => { + await blockchainLifecycle.startAsync(); + }); + after(async () => { + await blockchainLifecycle.revertAsync(); + }); + before(async () => { + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + owner = accounts[0]; + spender = accounts[1]; + zrxToken = await ZRXTokenContract.deployFrom0xArtifactAsync(artifacts.ZRXToken, provider, txDefaults); + MAX_UINT = constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS; + }); + beforeEach(async () => { + await blockchainLifecycle.startAsync(); + }); + afterEach(async () => { + await blockchainLifecycle.revertAsync(); + }); + describe('constants', () => { + it('should have 18 decimals', async () => { + const decimals = new BigNumber(await zrxToken.decimals.callAsync()); + const expectedDecimals = 18; + expect(decimals).to.be.bignumber.equal(expectedDecimals); + }); + + it('should have a total supply of 1 billion tokens', async () => { + const totalSupply = new BigNumber(await zrxToken.totalSupply.callAsync()); + const expectedTotalSupply = 1000000000; + expect(Web3Wrapper.toUnitAmount(totalSupply, 18)).to.be.bignumber.equal(expectedTotalSupply); + }); + + it('should be named 0x Protocol Token', async () => { + const name = await zrxToken.name.callAsync(); + const expectedName = '0x Protocol Token'; + expect(name).to.be.equal(expectedName); + }); + + it('should have the symbol ZRX', async () => { + const symbol = await zrxToken.symbol.callAsync(); + const expectedSymbol = 'ZRX'; + expect(symbol).to.be.equal(expectedSymbol); + }); + }); + + describe('constructor', () => { + it('should initialize owner balance to totalSupply', async () => { + const ownerBalance = await zrxToken.balanceOf.callAsync(owner); + const totalSupply = new BigNumber(await zrxToken.totalSupply.callAsync()); + expect(totalSupply).to.be.bignumber.equal(ownerBalance); + }); + }); + + describe('transfer', () => { + it('should transfer balance from sender to receiver', async () => { + const receiver = spender; + const initOwnerBalance = await zrxToken.balanceOf.callAsync(owner); + const amountToTransfer = new BigNumber(1); + await web3Wrapper.awaitTransactionSuccessAsync( + await zrxToken.transfer.sendTransactionAsync(receiver, amountToTransfer, { from: owner }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const finalOwnerBalance = await zrxToken.balanceOf.callAsync(owner); + const finalReceiverBalance = await zrxToken.balanceOf.callAsync(receiver); + + const expectedFinalOwnerBalance = initOwnerBalance.minus(amountToTransfer); + const expectedFinalReceiverBalance = amountToTransfer; + expect(finalOwnerBalance).to.be.bignumber.equal(expectedFinalOwnerBalance); + expect(finalReceiverBalance).to.be.bignumber.equal(expectedFinalReceiverBalance); + }); + + it('should return true on a 0 value transfer', async () => { + const didReturnTrue = await zrxToken.transfer.callAsync(spender, new BigNumber(0), { + from: owner, + }); + expect(didReturnTrue).to.be.true(); + }); + }); + + describe('transferFrom', () => { + it('should return false if owner has insufficient balance', async () => { + const ownerBalance = await zrxToken.balanceOf.callAsync(owner); + const amountToTransfer = ownerBalance.plus(1); + await web3Wrapper.awaitTransactionSuccessAsync( + await zrxToken.approve.sendTransactionAsync(spender, amountToTransfer, { + from: owner, + gas: constants.MAX_TOKEN_APPROVE_GAS, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + const didReturnTrue = await zrxToken.transferFrom.callAsync(owner, spender, amountToTransfer, { + from: spender, + }); + expect(didReturnTrue).to.be.false(); + }); + + it('should return false if spender has insufficient allowance', async () => { + const ownerBalance = await zrxToken.balanceOf.callAsync(owner); + const amountToTransfer = ownerBalance; + + const spenderAllowance = await zrxToken.allowance.callAsync(owner, spender); + const isSpenderAllowanceInsufficient = spenderAllowance.cmp(amountToTransfer) < 0; + expect(isSpenderAllowanceInsufficient).to.be.true(); + + const didReturnTrue = await zrxToken.transferFrom.callAsync(owner, spender, amountToTransfer, { + from: spender, + }); + expect(didReturnTrue).to.be.false(); + }); + + it('should return true on a 0 value transfer', async () => { + const amountToTransfer = new BigNumber(0); + const didReturnTrue = await zrxToken.transferFrom.callAsync(owner, spender, amountToTransfer, { + from: spender, + }); + expect(didReturnTrue).to.be.true(); + }); + + it('should not modify spender allowance if spender allowance is 2^256 - 1', async () => { + const initOwnerBalance = await zrxToken.balanceOf.callAsync(owner); + const amountToTransfer = initOwnerBalance; + const initSpenderAllowance = MAX_UINT; + await web3Wrapper.awaitTransactionSuccessAsync( + await zrxToken.approve.sendTransactionAsync(spender, initSpenderAllowance, { + from: owner, + gas: constants.MAX_TOKEN_APPROVE_GAS, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await zrxToken.transferFrom.sendTransactionAsync(owner, spender, amountToTransfer, { + from: spender, + gas: constants.MAX_TOKEN_TRANSFERFROM_GAS, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const newSpenderAllowance = await zrxToken.allowance.callAsync(owner, spender); + expect(initSpenderAllowance).to.be.bignumber.equal(newSpenderAllowance); + }); + + it('should transfer the correct balances if spender has sufficient allowance', async () => { + const initOwnerBalance = await zrxToken.balanceOf.callAsync(owner); + const initSpenderBalance = await zrxToken.balanceOf.callAsync(spender); + const amountToTransfer = initOwnerBalance; + const initSpenderAllowance = initOwnerBalance; + await web3Wrapper.awaitTransactionSuccessAsync( + await zrxToken.approve.sendTransactionAsync(spender, initSpenderAllowance), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await zrxToken.transferFrom.sendTransactionAsync(owner, spender, amountToTransfer, { + from: spender, + gas: constants.MAX_TOKEN_TRANSFERFROM_GAS, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const newOwnerBalance = await zrxToken.balanceOf.callAsync(owner); + const newSpenderBalance = await zrxToken.balanceOf.callAsync(spender); + + expect(newOwnerBalance).to.be.bignumber.equal(0); + expect(newSpenderBalance).to.be.bignumber.equal(initSpenderBalance.plus(initOwnerBalance)); + }); + + it('should modify allowance if spender has sufficient allowance less than 2^256 - 1', async () => { + const initOwnerBalance = await zrxToken.balanceOf.callAsync(owner); + const amountToTransfer = initOwnerBalance; + await web3Wrapper.awaitTransactionSuccessAsync( + await zrxToken.approve.sendTransactionAsync(spender, amountToTransfer), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await zrxToken.transferFrom.sendTransactionAsync(owner, spender, amountToTransfer, { + from: spender, + gas: constants.MAX_TOKEN_TRANSFERFROM_GAS, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const newSpenderAllowance = await zrxToken.allowance.callAsync(owner, spender); + expect(newSpenderAllowance).to.be.bignumber.equal(0); + }); + }); +}); diff --git a/contracts/core/test/tutorials/arbitrage.ts b/contracts/core/test/tutorials/arbitrage.ts new file mode 100644 index 000000000..78e0bc238 --- /dev/null +++ b/contracts/core/test/tutorials/arbitrage.ts @@ -0,0 +1,260 @@ +// import { ECSignature, SignedOrder, ZeroEx } from '0x.js'; +// import { BlockchainLifecycle, devConstants, web3Factory } from '@0x/dev-utils'; +// import { ExchangeContractErrs } from 'ethereum-types'; +// import { BigNumber } from '@0x/utils'; +// import { Web3Wrapper } from '@0x/web3-wrapper'; +// import * as chai from 'chai'; +// import ethUtil = require('ethereumjs-util'); +// import * as Web3 from 'web3'; + +// import { AccountLevelsContract } from '../../src/generated_contract_wrappers/account_levels'; +// import { ArbitrageContract } from '../../src/generated_contract_wrappers/arbitrage'; +// import { DummyTokenContract } from '../../src/generated_contract_wrappers/dummy_token'; +// import { EtherDeltaContract } from '../../src/generated_contract_wrappers/ether_delta'; +// import { ExchangeContract } from '../../src/generated_contract_wrappers/exchange'; +// import { TokenTransferProxyContract } from '../../src/generated_contract_wrappers/token_transfer_proxy'; +// import { artifacts } from '../../util/artifacts'; +// import { Balances } from '../../util/balances'; +// import { constants } from '../../util/constants'; +// import { crypto } from '../../util/crypto'; +// import { ExchangeWrapper } from '../../util/exchange_wrapper'; +// import { OrderFactory } from '../../util/order_factory'; +// import { BalancesByOwner, ContractName } from '../../util/types'; +// import { chaiSetup } from '../utils/chai_setup'; + +// import { provider, txDefaults, web3Wrapper } from '../utils/web3_wrapper'; + +// chaiSetup.configure(); +// const expect = chai.expect; +// const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); + +// describe('Arbitrage', () => { +// let coinbase: string; +// let maker: string; +// let edMaker: string; +// let edFrontRunner: string; +// let amountGet: BigNumber; +// let amountGive: BigNumber; +// let makerTokenAmount: BigNumber; +// let takerTokenAmount: BigNumber; +// const feeRecipient = constants.NULL_ADDRESS; +// const INITIAL_BALANCE = ZeroEx.toBaseUnitAmount(new BigNumber(10000), 18); +// const INITIAL_ALLOWANCE = ZeroEx.toBaseUnitAmount(new BigNumber(10000), 18); + +// let weth: DummyTokenContract; +// let zrx: DummyTokenContract; +// let arbitrage: ArbitrageContract; +// let etherDelta: EtherDeltaContract; + +// let signedOrder: SignedOrder; +// let exWrapper: ExchangeWrapper; +// let orderFactory: OrderFactory; + +// let zeroEx: ZeroEx; + +// // From a bird's eye view - we create two orders. +// // 0x order of 1 ZRX (maker) for 1 WETH (taker) +// // ED order of 2 WETH (tokenGive) for 1 ZRX (tokenGet) +// // And then we do an atomic arbitrage between them which gives us 1 WETH. +// before(async () => { +// const accounts = await web3Wrapper.getAvailableAddressesAsync(); +// [coinbase, maker, edMaker, edFrontRunner] = accounts; +// weth = await DummyTokenContract.deployFrom0xArtifactAsync( +// artifacts.DummyToken, +// provider, +// txDefaults, +// constants.DUMMY_TOKEN_NAME, +// constants.DUMMY_TOKEN_SYMBOL, +// constants.DUMMY_TOKEN_DECIMALS, +// constants.DUMMY_TOKEN_TOTAL_SUPPLY, +// ); +// zrx = await DummyTokenContract.deployFrom0xArtifactAsync( +// artifacts.DummyToken, +// provider, +// txDefaults, +// constants.DUMMY_TOKEN_NAME, +// constants.DUMMY_TOKEN_SYMBOL, +// constants.DUMMY_TOKEN_DECIMALS, +// constants.DUMMY_TOKEN_TOTAL_SUPPLY, +// ); +// const accountLevels = await AccountLevelsContract.deployFrom0xArtifactAsync( +// artifacts.AccountLevels, +// provider, +// txDefaults, +// ); +// const edAdminAddress = accounts[0]; +// const edMakerFee = new BigNumber(0); +// const edTakerFee = new BigNumber(0); +// const edFeeRebate = new BigNumber(0); +// etherDelta = await EtherDeltaContract.deployFrom0xArtifactAsync( +// artifacts.EtherDelta, +// provider, +// txDefaults, +// edAdminAddress, +// feeRecipient, +// accountLevels.address, +// edMakerFee, +// edTakerFee, +// edFeeRebate, +// ); +// const tokenTransferProxy = await TokenTransferProxyContract.deployFrom0xArtifactAsync( +// artifacts.TokenTransferProxy, +// provider, +// txDefaults, +// ); +// const exchange = await ExchangeContract.deployFrom0xArtifactAsync( +// artifacts.Exchange, +// provider, +// txDefaults, +// zrx.address, +// tokenTransferProxy.address, +// ); +// await tokenTransferProxy.addAuthorizedAddress.sendTransactionAsync(exchange.address, { from: accounts[0] }); +// zeroEx = new ZeroEx(provider, { +// exchangeContractAddress: exchange.address, +// networkId: constants.TESTRPC_NETWORK_ID, +// }); +// exWrapper = new ExchangeWrapper(exchange, provider); + +// makerTokenAmount = ZeroEx.toBaseUnitAmount(new BigNumber(1), 18); +// takerTokenAmount = makerTokenAmount; +// const defaultOrderParams = { +// exchangeContractAddress: exchange.address, +// maker, +// feeRecipient, +// makerTokenAddress: zrx.address, +// takerTokenAddress: weth.address, +// makerTokenAmount, +// takerTokenAmount, +// makerFee: new BigNumber(0), +// takerFee: new BigNumber(0), +// }; +// orderFactory = new OrderFactory(zeroEx, defaultOrderParams); +// arbitrage = await ArbitrageContract.deployFrom0xArtifactAsync( +// artifacts.Arbitrage, +// provider, +// txDefaults, +// exchange.address, +// etherDelta.address, +// tokenTransferProxy.address, +// ); +// // Enable arbitrage and withdrawals of tokens +// await arbitrage.setAllowances.sendTransactionAsync(weth.address, { from: coinbase }); +// await arbitrage.setAllowances.sendTransactionAsync(zrx.address, { from: coinbase }); + +// // Give some tokens to arbitrage contract +// await weth.setBalance.sendTransactionAsync(arbitrage.address, takerTokenAmount, { from: coinbase }); + +// // Fund the maker on exchange side +// await zrx.setBalance.sendTransactionAsync(maker, makerTokenAmount, { from: coinbase }); +// // Set the allowance for the maker on Exchange side +// await zrx.approve.sendTransactionAsync(tokenTransferProxy.address, INITIAL_ALLOWANCE, { from: maker }); + +// amountGive = ZeroEx.toBaseUnitAmount(new BigNumber(2), 18); +// // Fund the maker on EtherDelta side +// await weth.setBalance.sendTransactionAsync(edMaker, amountGive, { from: coinbase }); +// // Set the allowance for the maker on EtherDelta side +// await weth.approve.sendTransactionAsync(etherDelta.address, INITIAL_ALLOWANCE, { from: edMaker }); +// // Deposit maker funds into EtherDelta +// await etherDelta.depositToken.sendTransactionAsync(weth.address, amountGive, { from: edMaker }); + +// amountGet = makerTokenAmount; +// // Fund the front runner on EtherDelta side +// await zrx.setBalance.sendTransactionAsync(edFrontRunner, amountGet, { from: coinbase }); +// // Set the allowance for the front-runner on EtherDelta side +// await zrx.approve.sendTransactionAsync(etherDelta.address, INITIAL_ALLOWANCE, { from: edFrontRunner }); +// // Deposit front runner funds into EtherDelta +// await etherDelta.depositToken.sendTransactionAsync(zrx.address, amountGet, { from: edFrontRunner }); +// }); +// beforeEach(async () => { +// await blockchainLifecycle.startAsync(); +// }); +// afterEach(async () => { +// await blockchainLifecycle.revertAsync(); +// }); +// describe('makeAtomicTrade', () => { +// let addresses: string[]; +// let values: BigNumber[]; +// let v: number[]; +// let r: string[]; +// let s: string[]; +// let tokenGet: string; +// let tokenGive: string; +// let expires: BigNumber; +// let nonce: BigNumber; +// let edSignature: ECSignature; +// before(async () => { +// signedOrder = await orderFactory.newSignedOrderAsync(); +// tokenGet = zrx.address; +// tokenGive = weth.address; +// const blockNumber = await web3Wrapper.getBlockNumberAsync(); +// const ED_ORDER_EXPIRATION_IN_BLOCKS = 10; +// expires = new BigNumber(blockNumber + ED_ORDER_EXPIRATION_IN_BLOCKS); +// nonce = new BigNumber(42); +// const edOrderHash = `0x${crypto +// .solSHA256([etherDelta.address, tokenGet, amountGet, tokenGive, amountGive, expires, nonce]) +// .toString('hex')}`; +// const shouldAddPersonalMessagePrefix = false; +// edSignature = await zeroEx.signOrderHashAsync(edOrderHash, edMaker, shouldAddPersonalMessagePrefix); +// addresses = [ +// signedOrder.maker, +// signedOrder.taker, +// signedOrder.makerTokenAddress, +// signedOrder.takerTokenAddress, +// signedOrder.feeRecipient, +// edMaker, +// ]; +// const fillTakerTokenAmount = takerTokenAmount; +// const edFillAmount = makerTokenAmount; +// values = [ +// signedOrder.makerTokenAmount, +// signedOrder.takerTokenAmount, +// signedOrder.makerFee, +// signedOrder.takerFee, +// signedOrder.expirationUnixTimestampSec, +// signedOrder.salt, +// fillTakerTokenAmount, +// amountGet, +// amountGive, +// expires, +// nonce, +// edFillAmount, +// ]; +// v = [signedOrder.ecSignature.v, edSignature.v]; +// r = [signedOrder.ecSignature.r, edSignature.r]; +// s = [signedOrder.ecSignature.s, edSignature.s]; +// }); +// it('should successfully execute the arbitrage if not front-runned', async () => { +// const txHash = await arbitrage.makeAtomicTrade.sendTransactionAsync(addresses, values, v, r, s, { +// from: coinbase, +// }); +// const res = await zeroEx.awaitTransactionMinedAsync(txHash); +// const postBalance = await weth.balanceOf.callAsync(arbitrage.address); +// expect(postBalance).to.be.bignumber.equal(amountGive); +// }); +// it('should fail and revert if front-runned', async () => { +// const preBalance = await weth.balanceOf.callAsync(arbitrage.address); +// // Front-running transaction +// await etherDelta.trade.sendTransactionAsync( +// tokenGet, +// amountGet, +// tokenGive, +// amountGive, +// expires, +// nonce, +// edMaker, +// edSignature.v, +// edSignature.r, +// edSignature.s, +// amountGet, +// { from: edFrontRunner }, +// ); +// // tslint:disable-next-line:await-promise +// await expect( +// arbitrage.makeAtomicTrade.sendTransactionAsync(addresses, values, v, r, s, { from: coinbase }), +// ).to.be.rejectedWith(constants.REVERT); +// const postBalance = await weth.balanceOf.callAsync(arbitrage.address); +// expect(preBalance).to.be.bignumber.equal(postBalance); +// }); +// }); +// }); diff --git a/contracts/core/test/utils/asset_proxy_owner_wrapper.ts b/contracts/core/test/utils/asset_proxy_owner_wrapper.ts new file mode 100644 index 000000000..d5aaaf519 --- /dev/null +++ b/contracts/core/test/utils/asset_proxy_owner_wrapper.ts @@ -0,0 +1,69 @@ +import { LogDecoder } from '@0x/contracts-test-utils'; +import { BigNumber } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; +import { Provider, TransactionReceiptWithDecodedLogs } from 'ethereum-types'; +import * as _ from 'lodash'; + +import { AssetProxyOwnerContract } from '../../generated-wrappers/asset_proxy_owner'; +import { artifacts } from '../../src/artifacts'; + +export class AssetProxyOwnerWrapper { + private readonly _assetProxyOwner: AssetProxyOwnerContract; + private readonly _web3Wrapper: Web3Wrapper; + private readonly _logDecoder: LogDecoder; + constructor(assetproxyOwnerContract: AssetProxyOwnerContract, provider: Provider) { + this._assetProxyOwner = assetproxyOwnerContract; + this._web3Wrapper = new Web3Wrapper(provider); + this._logDecoder = new LogDecoder(this._web3Wrapper, artifacts); + } + public async submitTransactionAsync( + destination: string, + data: string, + from: string, + opts: { value?: BigNumber } = {}, + ): Promise<TransactionReceiptWithDecodedLogs> { + const value = _.isUndefined(opts.value) ? new BigNumber(0) : opts.value; + const txHash = await this._assetProxyOwner.submitTransaction.sendTransactionAsync(destination, value, data, { + from, + }); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async confirmTransactionAsync(txId: BigNumber, from: string): Promise<TransactionReceiptWithDecodedLogs> { + const txHash = await this._assetProxyOwner.confirmTransaction.sendTransactionAsync(txId, { from }); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async revokeConfirmationAsync(txId: BigNumber, from: string): Promise<TransactionReceiptWithDecodedLogs> { + const txHash = await this._assetProxyOwner.revokeConfirmation.sendTransactionAsync(txId, { from }); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async executeTransactionAsync( + txId: BigNumber, + from: string, + opts: { gas?: number } = {}, + ): Promise<TransactionReceiptWithDecodedLogs> { + const txHash = await this._assetProxyOwner.executeTransaction.sendTransactionAsync(txId, { + from, + gas: opts.gas, + }); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async executeRemoveAuthorizedAddressAtIndexAsync( + txId: BigNumber, + from: string, + ): Promise<TransactionReceiptWithDecodedLogs> { + // tslint:disable-next-line:no-unnecessary-type-assertion + const txHash = await (this + ._assetProxyOwner as AssetProxyOwnerContract).executeRemoveAuthorizedAddressAtIndex.sendTransactionAsync( + txId, + { + from, + }, + ); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } +} diff --git a/contracts/core/test/utils/asset_wrapper.ts b/contracts/core/test/utils/asset_wrapper.ts new file mode 100644 index 000000000..e4090ad74 --- /dev/null +++ b/contracts/core/test/utils/asset_wrapper.ts @@ -0,0 +1,222 @@ +import { AbstractAssetWrapper, constants } from '@0x/contracts-test-utils'; +import { assetDataUtils } from '@0x/order-utils'; +import { AssetProxyId } from '@0x/types'; +import { BigNumber, errorUtils } from '@0x/utils'; +import * as _ from 'lodash'; + +import { ERC20Wrapper } from './erc20_wrapper'; +import { ERC721Wrapper } from './erc721_wrapper'; + +interface ProxyIdToAssetWrappers { + [proxyId: string]: AbstractAssetWrapper; +} + +/** + * This class abstracts away the differences between ERC20 and ERC721 tokens so that + * the logic that uses it does not need to care what standard a token belongs to. + */ +export class AssetWrapper { + private readonly _proxyIdToAssetWrappers: ProxyIdToAssetWrappers; + constructor(assetWrappers: AbstractAssetWrapper[]) { + this._proxyIdToAssetWrappers = {}; + _.each(assetWrappers, assetWrapper => { + const proxyId = assetWrapper.getProxyId(); + this._proxyIdToAssetWrappers[proxyId] = assetWrapper; + }); + } + public async getBalanceAsync(userAddress: string, assetData: string): Promise<BigNumber> { + const proxyId = assetDataUtils.decodeAssetProxyId(assetData); + switch (proxyId) { + case AssetProxyId.ERC20: { + const erc20Wrapper = this._proxyIdToAssetWrappers[proxyId] as ERC20Wrapper; + const balance = await erc20Wrapper.getBalanceAsync(userAddress, assetData); + return balance; + } + case AssetProxyId.ERC721: { + const assetWrapper = this._proxyIdToAssetWrappers[proxyId] as ERC721Wrapper; + const assetProxyData = assetDataUtils.decodeERC721AssetData(assetData); + const isOwner = await assetWrapper.isOwnerAsync( + userAddress, + assetProxyData.tokenAddress, + assetProxyData.tokenId, + ); + const balance = isOwner ? new BigNumber(1) : new BigNumber(0); + return balance; + } + default: + throw errorUtils.spawnSwitchErr('proxyId', proxyId); + } + } + public async setBalanceAsync(userAddress: string, assetData: string, desiredBalance: BigNumber): Promise<void> { + const proxyId = assetDataUtils.decodeAssetProxyId(assetData); + switch (proxyId) { + case AssetProxyId.ERC20: { + const erc20Wrapper = this._proxyIdToAssetWrappers[proxyId] as ERC20Wrapper; + await erc20Wrapper.setBalanceAsync(userAddress, assetData, desiredBalance); + return; + } + case AssetProxyId.ERC721: { + if (!desiredBalance.eq(0) && !desiredBalance.eq(1)) { + throw new Error(`Balance for ERC721 token can only be set to 0 or 1. Got: ${desiredBalance}`); + } + const erc721Wrapper = this._proxyIdToAssetWrappers[proxyId] as ERC721Wrapper; + const assetProxyData = assetDataUtils.decodeERC721AssetData(assetData); + const doesTokenExist = erc721Wrapper.doesTokenExistAsync( + assetProxyData.tokenAddress, + assetProxyData.tokenId, + ); + if (!doesTokenExist && desiredBalance.eq(1)) { + await erc721Wrapper.mintAsync(assetProxyData.tokenAddress, assetProxyData.tokenId, userAddress); + return; + } else if (!doesTokenExist && desiredBalance.eq(0)) { + return; // noop + } + const tokenOwner = await erc721Wrapper.ownerOfAsync( + assetProxyData.tokenAddress, + assetProxyData.tokenId, + ); + if (userAddress !== tokenOwner && desiredBalance.eq(1)) { + await erc721Wrapper.transferFromAsync( + assetProxyData.tokenAddress, + assetProxyData.tokenId, + tokenOwner, + userAddress, + ); + } else if (tokenOwner === userAddress && desiredBalance.eq(0)) { + // Transfer token to someone else + const userAddresses = await (erc721Wrapper as any)._web3Wrapper.getAvailableAddressesAsync(); + const nonOwner = _.find(userAddresses, a => a !== userAddress); + await erc721Wrapper.transferFromAsync( + assetProxyData.tokenAddress, + assetProxyData.tokenId, + tokenOwner, + nonOwner, + ); + return; + } else if ( + (userAddress !== tokenOwner && desiredBalance.eq(0)) || + (tokenOwner === userAddress && desiredBalance.eq(1)) + ) { + return; // noop + } + break; + } + default: + throw errorUtils.spawnSwitchErr('proxyId', proxyId); + } + } + public async getProxyAllowanceAsync(userAddress: string, assetData: string): Promise<BigNumber> { + const proxyId = assetDataUtils.decodeAssetProxyId(assetData); + switch (proxyId) { + case AssetProxyId.ERC20: { + const erc20Wrapper = this._proxyIdToAssetWrappers[proxyId] as ERC20Wrapper; + const allowance = await erc20Wrapper.getProxyAllowanceAsync(userAddress, assetData); + return allowance; + } + case AssetProxyId.ERC721: { + const assetWrapper = this._proxyIdToAssetWrappers[proxyId] as ERC721Wrapper; + const erc721ProxyData = assetDataUtils.decodeERC721AssetData(assetData); + const isProxyApprovedForAll = await assetWrapper.isProxyApprovedForAllAsync( + userAddress, + erc721ProxyData.tokenAddress, + ); + if (isProxyApprovedForAll) { + return constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS; + } + + const isProxyApproved = await assetWrapper.isProxyApprovedAsync( + erc721ProxyData.tokenAddress, + erc721ProxyData.tokenId, + ); + const allowance = isProxyApproved ? new BigNumber(1) : new BigNumber(0); + return allowance; + } + default: + throw errorUtils.spawnSwitchErr('proxyId', proxyId); + } + } + public async setProxyAllowanceAsync( + userAddress: string, + assetData: string, + desiredAllowance: BigNumber, + ): Promise<void> { + const proxyId = assetDataUtils.decodeAssetProxyId(assetData); + switch (proxyId) { + case AssetProxyId.ERC20: { + const erc20Wrapper = this._proxyIdToAssetWrappers[proxyId] as ERC20Wrapper; + await erc20Wrapper.setAllowanceAsync(userAddress, assetData, desiredAllowance); + return; + } + case AssetProxyId.ERC721: { + if ( + !desiredAllowance.eq(0) && + !desiredAllowance.eq(1) && + !desiredAllowance.eq(constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS) + ) { + throw new Error( + `Allowance for ERC721 token can only be set to 0, 1 or 2^256-1. Got: ${desiredAllowance}`, + ); + } + const erc721Wrapper = this._proxyIdToAssetWrappers[proxyId] as ERC721Wrapper; + const assetProxyData = assetDataUtils.decodeERC721AssetData(assetData); + + const doesTokenExist = await erc721Wrapper.doesTokenExistAsync( + assetProxyData.tokenAddress, + assetProxyData.tokenId, + ); + if (!doesTokenExist) { + throw new Error( + `Cannot setProxyAllowance on non-existent token: ${assetProxyData.tokenAddress} ${ + assetProxyData.tokenId + }`, + ); + } + const isProxyApprovedForAll = await erc721Wrapper.isProxyApprovedForAllAsync( + userAddress, + assetProxyData.tokenAddress, + ); + if (!isProxyApprovedForAll && desiredAllowance.eq(constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS)) { + const isApproved = true; + await erc721Wrapper.approveProxyForAllAsync( + assetProxyData.tokenAddress, + assetProxyData.tokenId, + isApproved, + ); + } else if (isProxyApprovedForAll && desiredAllowance.eq(0)) { + const isApproved = false; + await erc721Wrapper.approveProxyForAllAsync( + assetProxyData.tokenAddress, + assetProxyData.tokenId, + isApproved, + ); + } else if (isProxyApprovedForAll && desiredAllowance.eq(constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS)) { + return; // Noop + } + + const isProxyApproved = await erc721Wrapper.isProxyApprovedAsync( + assetProxyData.tokenAddress, + assetProxyData.tokenId, + ); + if (!isProxyApproved && desiredAllowance.eq(1)) { + await erc721Wrapper.approveProxyAsync(assetProxyData.tokenAddress, assetProxyData.tokenId); + } else if (isProxyApproved && desiredAllowance.eq(0)) { + // Remove approval + await erc721Wrapper.approveAsync( + constants.NULL_ADDRESS, + assetProxyData.tokenAddress, + assetProxyData.tokenId, + ); + } else if ( + (!isProxyApproved && desiredAllowance.eq(0)) || + (isProxyApproved && desiredAllowance.eq(1)) + ) { + return; // noop + } + + break; + } + default: + throw errorUtils.spawnSwitchErr('proxyId', proxyId); + } + } +} diff --git a/contracts/core/test/utils/erc20_wrapper.ts b/contracts/core/test/utils/erc20_wrapper.ts new file mode 100644 index 000000000..d6210646c --- /dev/null +++ b/contracts/core/test/utils/erc20_wrapper.ts @@ -0,0 +1,179 @@ +import { constants, ERC20BalancesByOwner, txDefaults } from '@0x/contracts-test-utils'; +import { assetDataUtils } from '@0x/order-utils'; +import { BigNumber } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; +import { Provider } from 'ethereum-types'; +import * as _ from 'lodash'; + +import { DummyERC20TokenContract } from '../../generated-wrappers/dummy_erc20_token'; +import { ERC20ProxyContract } from '../../generated-wrappers/erc20_proxy'; +import { artifacts } from '../../src/artifacts'; + +export class ERC20Wrapper { + private readonly _tokenOwnerAddresses: string[]; + private readonly _contractOwnerAddress: string; + private readonly _web3Wrapper: Web3Wrapper; + private readonly _provider: Provider; + private readonly _dummyTokenContracts: DummyERC20TokenContract[]; + private _proxyContract?: ERC20ProxyContract; + private _proxyIdIfExists?: string; + /** + * Instanitates an ERC20Wrapper + * @param provider Web3 provider to use for all JSON RPC requests + * @param tokenOwnerAddresses Addresses that we want to endow as owners for dummy ERC20 tokens + * @param contractOwnerAddress Desired owner of the contract + * Instance of ERC20Wrapper + */ + constructor(provider: Provider, tokenOwnerAddresses: string[], contractOwnerAddress: string) { + this._dummyTokenContracts = []; + this._web3Wrapper = new Web3Wrapper(provider); + this._provider = provider; + this._tokenOwnerAddresses = tokenOwnerAddresses; + this._contractOwnerAddress = contractOwnerAddress; + } + public async deployDummyTokensAsync( + numberToDeploy: number, + decimals: BigNumber, + ): Promise<DummyERC20TokenContract[]> { + for (let i = 0; i < numberToDeploy; i++) { + this._dummyTokenContracts.push( + await DummyERC20TokenContract.deployFrom0xArtifactAsync( + artifacts.DummyERC20Token, + this._provider, + txDefaults, + constants.DUMMY_TOKEN_NAME, + constants.DUMMY_TOKEN_SYMBOL, + decimals, + constants.DUMMY_TOKEN_TOTAL_SUPPLY, + ), + ); + } + return this._dummyTokenContracts; + } + public async deployProxyAsync(): Promise<ERC20ProxyContract> { + this._proxyContract = await ERC20ProxyContract.deployFrom0xArtifactAsync( + artifacts.ERC20Proxy, + this._provider, + txDefaults, + ); + this._proxyIdIfExists = await this._proxyContract.getProxyId.callAsync(); + return this._proxyContract; + } + public getProxyId(): string { + this._validateProxyContractExistsOrThrow(); + return this._proxyIdIfExists as string; + } + public async setBalancesAndAllowancesAsync(): Promise<void> { + this._validateDummyTokenContractsExistOrThrow(); + this._validateProxyContractExistsOrThrow(); + for (const dummyTokenContract of this._dummyTokenContracts) { + for (const tokenOwnerAddress of this._tokenOwnerAddresses) { + await this._web3Wrapper.awaitTransactionSuccessAsync( + await dummyTokenContract.setBalance.sendTransactionAsync( + tokenOwnerAddress, + constants.INITIAL_ERC20_BALANCE, + { from: this._contractOwnerAddress }, + ), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await this._web3Wrapper.awaitTransactionSuccessAsync( + await dummyTokenContract.approve.sendTransactionAsync( + (this._proxyContract as ERC20ProxyContract).address, + constants.INITIAL_ERC20_ALLOWANCE, + { from: tokenOwnerAddress }, + ), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + } + } + } + public async getBalanceAsync(userAddress: string, assetData: string): Promise<BigNumber> { + const tokenContract = this._getTokenContractFromAssetData(assetData); + const balance = new BigNumber(await tokenContract.balanceOf.callAsync(userAddress)); + return balance; + } + public async setBalanceAsync(userAddress: string, assetData: string, amount: BigNumber): Promise<void> { + const tokenContract = this._getTokenContractFromAssetData(assetData); + await this._web3Wrapper.awaitTransactionSuccessAsync( + await tokenContract.setBalance.sendTransactionAsync(userAddress, amount, { + from: this._contractOwnerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + } + public async getProxyAllowanceAsync(userAddress: string, assetData: string): Promise<BigNumber> { + const tokenContract = this._getTokenContractFromAssetData(assetData); + const proxyAddress = (this._proxyContract as ERC20ProxyContract).address; + const allowance = new BigNumber(await tokenContract.allowance.callAsync(userAddress, proxyAddress)); + return allowance; + } + public async setAllowanceAsync(userAddress: string, assetData: string, amount: BigNumber): Promise<void> { + const tokenContract = this._getTokenContractFromAssetData(assetData); + const proxyAddress = (this._proxyContract as ERC20ProxyContract).address; + await this._web3Wrapper.awaitTransactionSuccessAsync( + await tokenContract.approve.sendTransactionAsync(proxyAddress, amount, { + from: userAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + } + public async getBalancesAsync(): Promise<ERC20BalancesByOwner> { + this._validateDummyTokenContractsExistOrThrow(); + const balancesByOwner: ERC20BalancesByOwner = {}; + const balances: BigNumber[] = []; + const balanceInfo: Array<{ tokenOwnerAddress: string; tokenAddress: string }> = []; + for (const dummyTokenContract of this._dummyTokenContracts) { + for (const tokenOwnerAddress of this._tokenOwnerAddresses) { + balances.push(await dummyTokenContract.balanceOf.callAsync(tokenOwnerAddress)); + balanceInfo.push({ + tokenOwnerAddress, + tokenAddress: dummyTokenContract.address, + }); + } + } + _.forEach(balances, (balance, balanceIndex) => { + const tokenAddress = balanceInfo[balanceIndex].tokenAddress; + const tokenOwnerAddress = balanceInfo[balanceIndex].tokenOwnerAddress; + if (_.isUndefined(balancesByOwner[tokenOwnerAddress])) { + balancesByOwner[tokenOwnerAddress] = {}; + } + const wrappedBalance = new BigNumber(balance); + balancesByOwner[tokenOwnerAddress][tokenAddress] = wrappedBalance; + }); + return balancesByOwner; + } + public addDummyTokenContract(dummy: DummyERC20TokenContract): void { + if (!_.isUndefined(this._dummyTokenContracts)) { + this._dummyTokenContracts.push(dummy); + } + } + public addTokenOwnerAddress(address: string): void { + this._tokenOwnerAddresses.push(address); + } + public getTokenOwnerAddresses(): string[] { + return this._tokenOwnerAddresses; + } + public getTokenAddresses(): string[] { + const tokenAddresses = _.map(this._dummyTokenContracts, dummyTokenContract => dummyTokenContract.address); + return tokenAddresses; + } + private _getTokenContractFromAssetData(assetData: string): DummyERC20TokenContract { + const erc20ProxyData = assetDataUtils.decodeERC20AssetData(assetData); + const tokenAddress = erc20ProxyData.tokenAddress; + const tokenContractIfExists = _.find(this._dummyTokenContracts, c => c.address === tokenAddress); + if (_.isUndefined(tokenContractIfExists)) { + throw new Error(`Token: ${tokenAddress} was not deployed through ERC20Wrapper`); + } + return tokenContractIfExists; + } + private _validateDummyTokenContractsExistOrThrow(): void { + if (_.isUndefined(this._dummyTokenContracts)) { + throw new Error('Dummy ERC20 tokens not yet deployed, please call "deployDummyTokensAsync"'); + } + } + private _validateProxyContractExistsOrThrow(): void { + if (_.isUndefined(this._proxyContract)) { + throw new Error('ERC20 proxy contract not yet deployed, please call "deployProxyAsync"'); + } + } +} diff --git a/contracts/core/test/utils/erc721_wrapper.ts b/contracts/core/test/utils/erc721_wrapper.ts new file mode 100644 index 000000000..b5ae34e60 --- /dev/null +++ b/contracts/core/test/utils/erc721_wrapper.ts @@ -0,0 +1,236 @@ +import { constants, ERC721TokenIdsByOwner, txDefaults } from '@0x/contracts-test-utils'; +import { generatePseudoRandomSalt } from '@0x/order-utils'; +import { BigNumber } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; +import { Provider } from 'ethereum-types'; +import * as _ from 'lodash'; + +import { DummyERC721TokenContract } from '../../generated-wrappers/dummy_erc721_token'; +import { ERC721ProxyContract } from '../../generated-wrappers/erc721_proxy'; +import { artifacts } from '../../src/artifacts'; + +export class ERC721Wrapper { + private readonly _tokenOwnerAddresses: string[]; + private readonly _contractOwnerAddress: string; + private readonly _web3Wrapper: Web3Wrapper; + private readonly _provider: Provider; + private readonly _dummyTokenContracts: DummyERC721TokenContract[]; + private _proxyContract?: ERC721ProxyContract; + private _proxyIdIfExists?: string; + private _initialTokenIdsByOwner: ERC721TokenIdsByOwner = {}; + constructor(provider: Provider, tokenOwnerAddresses: string[], contractOwnerAddress: string) { + this._web3Wrapper = new Web3Wrapper(provider); + this._provider = provider; + this._dummyTokenContracts = []; + this._tokenOwnerAddresses = tokenOwnerAddresses; + this._contractOwnerAddress = contractOwnerAddress; + } + public async deployDummyTokensAsync(): Promise<DummyERC721TokenContract[]> { + // tslint:disable-next-line:no-unused-variable + for (const i of _.times(constants.NUM_DUMMY_ERC721_TO_DEPLOY)) { + this._dummyTokenContracts.push( + await DummyERC721TokenContract.deployFrom0xArtifactAsync( + artifacts.DummyERC721Token, + this._provider, + txDefaults, + constants.DUMMY_TOKEN_NAME, + constants.DUMMY_TOKEN_SYMBOL, + ), + ); + } + return this._dummyTokenContracts; + } + public async deployProxyAsync(): Promise<ERC721ProxyContract> { + this._proxyContract = await ERC721ProxyContract.deployFrom0xArtifactAsync( + artifacts.ERC721Proxy, + this._provider, + txDefaults, + ); + this._proxyIdIfExists = await this._proxyContract.getProxyId.callAsync(); + return this._proxyContract; + } + public getProxyId(): string { + this._validateProxyContractExistsOrThrow(); + return this._proxyIdIfExists as string; + } + public async setBalancesAndAllowancesAsync(): Promise<void> { + this._validateDummyTokenContractsExistOrThrow(); + this._validateProxyContractExistsOrThrow(); + this._initialTokenIdsByOwner = {}; + for (const dummyTokenContract of this._dummyTokenContracts) { + for (const tokenOwnerAddress of this._tokenOwnerAddresses) { + // tslint:disable-next-line:no-unused-variable + for (const i of _.times(constants.NUM_ERC721_TOKENS_TO_MINT)) { + const tokenId = generatePseudoRandomSalt(); + await this.mintAsync(dummyTokenContract.address, tokenId, tokenOwnerAddress); + if (_.isUndefined(this._initialTokenIdsByOwner[tokenOwnerAddress])) { + this._initialTokenIdsByOwner[tokenOwnerAddress] = { + [dummyTokenContract.address]: [], + }; + } + if (_.isUndefined(this._initialTokenIdsByOwner[tokenOwnerAddress][dummyTokenContract.address])) { + this._initialTokenIdsByOwner[tokenOwnerAddress][dummyTokenContract.address] = []; + } + this._initialTokenIdsByOwner[tokenOwnerAddress][dummyTokenContract.address].push(tokenId); + + await this.approveProxyAsync(dummyTokenContract.address, tokenId); + } + } + } + } + public async doesTokenExistAsync(tokenAddress: string, tokenId: BigNumber): Promise<boolean> { + const tokenContract = this._getTokenContractFromAssetData(tokenAddress); + const owner = await tokenContract.ownerOf.callAsync(tokenId); + const doesExist = owner !== constants.NULL_ADDRESS; + return doesExist; + } + public async approveProxyAsync(tokenAddress: string, tokenId: BigNumber): Promise<void> { + const proxyAddress = (this._proxyContract as ERC721ProxyContract).address; + await this.approveAsync(proxyAddress, tokenAddress, tokenId); + } + public async approveProxyForAllAsync(tokenAddress: string, tokenId: BigNumber, isApproved: boolean): Promise<void> { + const tokenContract = this._getTokenContractFromAssetData(tokenAddress); + const tokenOwner = await this.ownerOfAsync(tokenAddress, tokenId); + const proxyAddress = (this._proxyContract as ERC721ProxyContract).address; + await this._web3Wrapper.awaitTransactionSuccessAsync( + await tokenContract.setApprovalForAll.sendTransactionAsync(proxyAddress, isApproved, { + from: tokenOwner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + } + public async approveAsync(to: string, tokenAddress: string, tokenId: BigNumber): Promise<void> { + const tokenContract = this._getTokenContractFromAssetData(tokenAddress); + const tokenOwner = await this.ownerOfAsync(tokenAddress, tokenId); + await this._web3Wrapper.awaitTransactionSuccessAsync( + await tokenContract.approve.sendTransactionAsync(to, tokenId, { + from: tokenOwner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + } + public async transferFromAsync( + tokenAddress: string, + tokenId: BigNumber, + currentOwner: string, + userAddress: string, + ): Promise<void> { + const tokenContract = this._getTokenContractFromAssetData(tokenAddress); + await this._web3Wrapper.awaitTransactionSuccessAsync( + await tokenContract.transferFrom.sendTransactionAsync(currentOwner, userAddress, tokenId, { + from: currentOwner, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + } + public async mintAsync(tokenAddress: string, tokenId: BigNumber, userAddress: string): Promise<void> { + const tokenContract = this._getTokenContractFromAssetData(tokenAddress); + await this._web3Wrapper.awaitTransactionSuccessAsync( + await tokenContract.mint.sendTransactionAsync(userAddress, tokenId, { + from: this._contractOwnerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + } + public async burnAsync(tokenAddress: string, tokenId: BigNumber, owner: string): Promise<void> { + const tokenContract = this._getTokenContractFromAssetData(tokenAddress); + await this._web3Wrapper.awaitTransactionSuccessAsync( + await tokenContract.burn.sendTransactionAsync(owner, tokenId, { + from: this._contractOwnerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + } + public async ownerOfAsync(tokenAddress: string, tokenId: BigNumber): Promise<string> { + const tokenContract = this._getTokenContractFromAssetData(tokenAddress); + const owner = await tokenContract.ownerOf.callAsync(tokenId); + return owner; + } + public async isOwnerAsync(userAddress: string, tokenAddress: string, tokenId: BigNumber): Promise<boolean> { + const tokenContract = this._getTokenContractFromAssetData(tokenAddress); + const tokenOwner = await tokenContract.ownerOf.callAsync(tokenId); + const isOwner = tokenOwner === userAddress; + return isOwner; + } + public async isProxyApprovedForAllAsync(userAddress: string, tokenAddress: string): Promise<boolean> { + this._validateProxyContractExistsOrThrow(); + const tokenContract = this._getTokenContractFromAssetData(tokenAddress); + const operator = (this._proxyContract as ERC721ProxyContract).address; + const didApproveAll = await tokenContract.isApprovedForAll.callAsync(userAddress, operator); + return didApproveAll; + } + public async isProxyApprovedAsync(tokenAddress: string, tokenId: BigNumber): Promise<boolean> { + this._validateProxyContractExistsOrThrow(); + const tokenContract = this._getTokenContractFromAssetData(tokenAddress); + const approvedAddress = await tokenContract.getApproved.callAsync(tokenId); + const proxyAddress = (this._proxyContract as ERC721ProxyContract).address; + const isProxyAnApprovedOperator = approvedAddress === proxyAddress; + return isProxyAnApprovedOperator; + } + public async getBalancesAsync(): Promise<ERC721TokenIdsByOwner> { + this._validateDummyTokenContractsExistOrThrow(); + this._validateBalancesAndAllowancesSetOrThrow(); + const tokenIdsByOwner: ERC721TokenIdsByOwner = {}; + const tokenOwnerAddresses: string[] = []; + const tokenInfo: Array<{ tokenId: BigNumber; tokenAddress: string }> = []; + for (const dummyTokenContract of this._dummyTokenContracts) { + for (const tokenOwnerAddress of this._tokenOwnerAddresses) { + const initialTokenOwnerIds = this._initialTokenIdsByOwner[tokenOwnerAddress][ + dummyTokenContract.address + ]; + for (const tokenId of initialTokenOwnerIds) { + tokenOwnerAddresses.push(await dummyTokenContract.ownerOf.callAsync(tokenId)); + tokenInfo.push({ + tokenId, + tokenAddress: dummyTokenContract.address, + }); + } + } + } + _.forEach(tokenOwnerAddresses, (tokenOwnerAddress, ownerIndex) => { + const tokenAddress = tokenInfo[ownerIndex].tokenAddress; + const tokenId = tokenInfo[ownerIndex].tokenId; + if (_.isUndefined(tokenIdsByOwner[tokenOwnerAddress])) { + tokenIdsByOwner[tokenOwnerAddress] = { + [tokenAddress]: [], + }; + } + if (_.isUndefined(tokenIdsByOwner[tokenOwnerAddress][tokenAddress])) { + tokenIdsByOwner[tokenOwnerAddress][tokenAddress] = []; + } + tokenIdsByOwner[tokenOwnerAddress][tokenAddress].push(tokenId); + }); + return tokenIdsByOwner; + } + public getTokenOwnerAddresses(): string[] { + return this._tokenOwnerAddresses; + } + public getTokenAddresses(): string[] { + const tokenAddresses = _.map(this._dummyTokenContracts, dummyTokenContract => dummyTokenContract.address); + return tokenAddresses; + } + private _getTokenContractFromAssetData(tokenAddress: string): DummyERC721TokenContract { + const tokenContractIfExists = _.find(this._dummyTokenContracts, c => c.address === tokenAddress); + if (_.isUndefined(tokenContractIfExists)) { + throw new Error(`Token: ${tokenAddress} was not deployed through ERC20Wrapper`); + } + return tokenContractIfExists; + } + private _validateDummyTokenContractsExistOrThrow(): void { + if (_.isUndefined(this._dummyTokenContracts)) { + throw new Error('Dummy ERC721 tokens not yet deployed, please call "deployDummyTokensAsync"'); + } + } + private _validateProxyContractExistsOrThrow(): void { + if (_.isUndefined(this._proxyContract)) { + throw new Error('ERC721 proxy contract not yet deployed, please call "deployProxyAsync"'); + } + } + private _validateBalancesAndAllowancesSetOrThrow(): void { + if (_.keys(this._initialTokenIdsByOwner).length === 0) { + throw new Error( + 'Dummy ERC721 balances and allowances not yet set, please call "setBalancesAndAllowancesAsync"', + ); + } + } +} diff --git a/contracts/core/test/utils/exchange_wrapper.ts b/contracts/core/test/utils/exchange_wrapper.ts new file mode 100644 index 000000000..2a24b880f --- /dev/null +++ b/contracts/core/test/utils/exchange_wrapper.ts @@ -0,0 +1,280 @@ +import { + FillResults, + formatters, + LogDecoder, + OrderInfo, + orderUtils, + SignedTransaction, +} from '@0x/contracts-test-utils'; +import { SignedOrder } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; +import { Provider, TransactionReceiptWithDecodedLogs } from 'ethereum-types'; + +import { ExchangeContract } from '../../generated-wrappers/exchange'; +import { artifacts } from '../../src/artifacts'; + +export class ExchangeWrapper { + private readonly _exchange: ExchangeContract; + private readonly _web3Wrapper: Web3Wrapper; + private readonly _logDecoder: LogDecoder; + constructor(exchangeContract: ExchangeContract, provider: Provider) { + this._exchange = exchangeContract; + this._web3Wrapper = new Web3Wrapper(provider); + this._logDecoder = new LogDecoder(this._web3Wrapper, artifacts); + } + public async fillOrderAsync( + signedOrder: SignedOrder, + from: string, + opts: { takerAssetFillAmount?: BigNumber } = {}, + ): Promise<TransactionReceiptWithDecodedLogs> { + const params = orderUtils.createFill(signedOrder, opts.takerAssetFillAmount); + const txHash = await this._exchange.fillOrder.sendTransactionAsync( + params.order, + params.takerAssetFillAmount, + params.signature, + { from }, + ); + const txReceipt = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return txReceipt; + } + public async cancelOrderAsync(signedOrder: SignedOrder, from: string): Promise<TransactionReceiptWithDecodedLogs> { + const params = orderUtils.createCancel(signedOrder); + const txHash = await this._exchange.cancelOrder.sendTransactionAsync(params.order, { from }); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async fillOrKillOrderAsync( + signedOrder: SignedOrder, + from: string, + opts: { takerAssetFillAmount?: BigNumber } = {}, + ): Promise<TransactionReceiptWithDecodedLogs> { + const params = orderUtils.createFill(signedOrder, opts.takerAssetFillAmount); + const txHash = await this._exchange.fillOrKillOrder.sendTransactionAsync( + params.order, + params.takerAssetFillAmount, + params.signature, + { from }, + ); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async fillOrderNoThrowAsync( + signedOrder: SignedOrder, + from: string, + opts: { takerAssetFillAmount?: BigNumber; gas?: number } = {}, + ): Promise<TransactionReceiptWithDecodedLogs> { + const params = orderUtils.createFill(signedOrder, opts.takerAssetFillAmount); + const txHash = await this._exchange.fillOrderNoThrow.sendTransactionAsync( + params.order, + params.takerAssetFillAmount, + params.signature, + { from, gas: opts.gas }, + ); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async batchFillOrdersAsync( + orders: SignedOrder[], + from: string, + opts: { takerAssetFillAmounts?: BigNumber[] } = {}, + ): Promise<TransactionReceiptWithDecodedLogs> { + const params = formatters.createBatchFill(orders, opts.takerAssetFillAmounts); + const txHash = await this._exchange.batchFillOrders.sendTransactionAsync( + params.orders, + params.takerAssetFillAmounts, + params.signatures, + { from }, + ); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async batchFillOrKillOrdersAsync( + orders: SignedOrder[], + from: string, + opts: { takerAssetFillAmounts?: BigNumber[] } = {}, + ): Promise<TransactionReceiptWithDecodedLogs> { + const params = formatters.createBatchFill(orders, opts.takerAssetFillAmounts); + const txHash = await this._exchange.batchFillOrKillOrders.sendTransactionAsync( + params.orders, + params.takerAssetFillAmounts, + params.signatures, + { from }, + ); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async batchFillOrdersNoThrowAsync( + orders: SignedOrder[], + from: string, + opts: { takerAssetFillAmounts?: BigNumber[]; gas?: number } = {}, + ): Promise<TransactionReceiptWithDecodedLogs> { + const params = formatters.createBatchFill(orders, opts.takerAssetFillAmounts); + const txHash = await this._exchange.batchFillOrdersNoThrow.sendTransactionAsync( + params.orders, + params.takerAssetFillAmounts, + params.signatures, + { from, gas: opts.gas }, + ); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async marketSellOrdersAsync( + orders: SignedOrder[], + from: string, + opts: { takerAssetFillAmount: BigNumber }, + ): Promise<TransactionReceiptWithDecodedLogs> { + const params = formatters.createMarketSellOrders(orders, opts.takerAssetFillAmount); + const txHash = await this._exchange.marketSellOrders.sendTransactionAsync( + params.orders, + params.takerAssetFillAmount, + params.signatures, + { from }, + ); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async marketSellOrdersNoThrowAsync( + orders: SignedOrder[], + from: string, + opts: { takerAssetFillAmount: BigNumber; gas?: number }, + ): Promise<TransactionReceiptWithDecodedLogs> { + const params = formatters.createMarketSellOrders(orders, opts.takerAssetFillAmount); + const txHash = await this._exchange.marketSellOrdersNoThrow.sendTransactionAsync( + params.orders, + params.takerAssetFillAmount, + params.signatures, + { from, gas: opts.gas }, + ); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async marketBuyOrdersAsync( + orders: SignedOrder[], + from: string, + opts: { makerAssetFillAmount: BigNumber }, + ): Promise<TransactionReceiptWithDecodedLogs> { + const params = formatters.createMarketBuyOrders(orders, opts.makerAssetFillAmount); + const txHash = await this._exchange.marketBuyOrders.sendTransactionAsync( + params.orders, + params.makerAssetFillAmount, + params.signatures, + { from }, + ); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async marketBuyOrdersNoThrowAsync( + orders: SignedOrder[], + from: string, + opts: { makerAssetFillAmount: BigNumber; gas?: number }, + ): Promise<TransactionReceiptWithDecodedLogs> { + const params = formatters.createMarketBuyOrders(orders, opts.makerAssetFillAmount); + const txHash = await this._exchange.marketBuyOrdersNoThrow.sendTransactionAsync( + params.orders, + params.makerAssetFillAmount, + params.signatures, + { from, gas: opts.gas }, + ); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async batchCancelOrdersAsync( + orders: SignedOrder[], + from: string, + ): Promise<TransactionReceiptWithDecodedLogs> { + const params = formatters.createBatchCancel(orders); + const txHash = await this._exchange.batchCancelOrders.sendTransactionAsync(params.orders, { from }); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async cancelOrdersUpToAsync(salt: BigNumber, from: string): Promise<TransactionReceiptWithDecodedLogs> { + const txHash = await this._exchange.cancelOrdersUpTo.sendTransactionAsync(salt, { from }); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async registerAssetProxyAsync( + assetProxyAddress: string, + from: string, + ): Promise<TransactionReceiptWithDecodedLogs> { + const txHash = await this._exchange.registerAssetProxy.sendTransactionAsync(assetProxyAddress, { from }); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async executeTransactionAsync( + signedTx: SignedTransaction, + from: string, + ): Promise<TransactionReceiptWithDecodedLogs> { + const txHash = await this._exchange.executeTransaction.sendTransactionAsync( + signedTx.salt, + signedTx.signerAddress, + signedTx.data, + signedTx.signature, + { from }, + ); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async getTakerAssetFilledAmountAsync(orderHashHex: string): Promise<BigNumber> { + const filledAmount = await this._exchange.filled.callAsync(orderHashHex); + return filledAmount; + } + public async isCancelledAsync(orderHashHex: string): Promise<boolean> { + const isCancelled = await this._exchange.cancelled.callAsync(orderHashHex); + return isCancelled; + } + public async getOrderEpochAsync(makerAddress: string, senderAddress: string): Promise<BigNumber> { + const orderEpoch = await this._exchange.orderEpoch.callAsync(makerAddress, senderAddress); + return orderEpoch; + } + public async getOrderInfoAsync(signedOrder: SignedOrder): Promise<OrderInfo> { + const orderInfo = (await this._exchange.getOrderInfo.callAsync(signedOrder)) as OrderInfo; + return orderInfo; + } + public async getOrdersInfoAsync(signedOrders: SignedOrder[]): Promise<OrderInfo[]> { + const ordersInfo = (await this._exchange.getOrdersInfo.callAsync(signedOrders)) as OrderInfo[]; + return ordersInfo; + } + public async matchOrdersAsync( + signedOrderLeft: SignedOrder, + signedOrderRight: SignedOrder, + from: string, + ): Promise<TransactionReceiptWithDecodedLogs> { + const params = orderUtils.createMatchOrders(signedOrderLeft, signedOrderRight); + const txHash = await this._exchange.matchOrders.sendTransactionAsync( + params.left, + params.right, + params.leftSignature, + params.rightSignature, + { from }, + ); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async getFillOrderResultsAsync( + signedOrder: SignedOrder, + from: string, + opts: { takerAssetFillAmount?: BigNumber } = {}, + ): Promise<FillResults> { + const params = orderUtils.createFill(signedOrder, opts.takerAssetFillAmount); + const fillResults = await this._exchange.fillOrder.callAsync( + params.order, + params.takerAssetFillAmount, + params.signature, + { from }, + ); + return fillResults; + } + public abiEncodeFillOrder(signedOrder: SignedOrder, opts: { takerAssetFillAmount?: BigNumber } = {}): string { + const params = orderUtils.createFill(signedOrder, opts.takerAssetFillAmount); + const data = this._exchange.fillOrder.getABIEncodedTransactionData( + params.order, + params.takerAssetFillAmount, + params.signature, + ); + return data; + } + public getExchangeAddress(): string { + return this._exchange.address; + } +} diff --git a/contracts/core/test/utils/fill_order_combinatorial_utils.ts b/contracts/core/test/utils/fill_order_combinatorial_utils.ts new file mode 100644 index 000000000..5d0ea07a8 --- /dev/null +++ b/contracts/core/test/utils/fill_order_combinatorial_utils.ts @@ -0,0 +1,928 @@ +import { artifacts as libsArtifacts, TestLibsContract } from '@0x/contracts-libs'; +import { + AllowanceAmountScenario, + AssetDataScenario, + BalanceAmountScenario, + chaiSetup, + constants, + expectTransactionFailedAsync, + ExpirationTimeSecondsScenario, + FeeRecipientAddressScenario, + FillScenario, + OrderAssetAmountScenario, + orderUtils, + signingUtils, + TakerAssetFillAmountScenario, + TakerScenario, + TraderStateScenario, +} from '@0x/contracts-test-utils'; +import { + assetDataUtils, + BalanceAndProxyAllowanceLazyStore, + ExchangeTransferSimulator, + orderHashUtils, + OrderStateUtils, + OrderValidationUtils, +} from '@0x/order-utils'; +import { AssetProxyId, RevertReason, SignatureType, SignedOrder } from '@0x/types'; +import { BigNumber, errorUtils, logUtils } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; +import * as chai from 'chai'; +import { LogWithDecodedArgs, Provider, TxData } from 'ethereum-types'; +import * as _ from 'lodash'; +import 'make-promises-safe'; + +import { ExchangeContract, ExchangeFillEventArgs } from '../../generated-wrappers/exchange'; +import { artifacts } from '../../src/artifacts'; + +import { AssetWrapper } from './asset_wrapper'; +import { ERC20Wrapper } from './erc20_wrapper'; +import { ERC721Wrapper } from './erc721_wrapper'; +import { ExchangeWrapper } from './exchange_wrapper'; +import { OrderFactoryFromScenario } from './order_factory_from_scenario'; +import { SimpleAssetBalanceAndProxyAllowanceFetcher } from './simple_asset_balance_and_proxy_allowance_fetcher'; +import { SimpleOrderFilledCancelledFetcher } from './simple_order_filled_cancelled_fetcher'; + +chaiSetup.configure(); +const expect = chai.expect; + +/** + * Instantiates a new instance of FillOrderCombinatorialUtils. Since this method has some + * required async setup, a factory method is required. + * @param web3Wrapper Web3Wrapper instance + * @param txDefaults Default Ethereum tx options + * @return FillOrderCombinatorialUtils instance + */ +export async function fillOrderCombinatorialUtilsFactoryAsync( + web3Wrapper: Web3Wrapper, + txDefaults: Partial<TxData>, +): Promise<FillOrderCombinatorialUtils> { + const accounts = await web3Wrapper.getAvailableAddressesAsync(); + const userAddresses = _.slice(accounts, 0, 5); + const [ownerAddress, makerAddress, takerAddress] = userAddresses; + const makerPrivateKey = constants.TESTRPC_PRIVATE_KEYS[userAddresses.indexOf(makerAddress)]; + + const provider = web3Wrapper.getProvider(); + const erc20Wrapper = new ERC20Wrapper(provider, userAddresses, ownerAddress); + const erc721Wrapper = new ERC721Wrapper(provider, userAddresses, ownerAddress); + + const erc20EighteenDecimalTokenCount = 3; + const eighteenDecimals = new BigNumber(18); + const [ + erc20EighteenDecimalTokenA, + erc20EighteenDecimalTokenB, + zrxToken, + ] = await erc20Wrapper.deployDummyTokensAsync(erc20EighteenDecimalTokenCount, eighteenDecimals); + const zrxAssetData = assetDataUtils.encodeERC20AssetData(zrxToken.address); + + const erc20FiveDecimalTokenCount = 2; + const fiveDecimals = new BigNumber(5); + const [erc20FiveDecimalTokenA, erc20FiveDecimalTokenB] = await erc20Wrapper.deployDummyTokensAsync( + erc20FiveDecimalTokenCount, + fiveDecimals, + ); + const zeroDecimals = new BigNumber(0); + const erc20ZeroDecimalTokenCount = 2; + const [erc20ZeroDecimalTokenA, erc20ZeroDecimalTokenB] = await erc20Wrapper.deployDummyTokensAsync( + erc20ZeroDecimalTokenCount, + zeroDecimals, + ); + const erc20Proxy = await erc20Wrapper.deployProxyAsync(); + await erc20Wrapper.setBalancesAndAllowancesAsync(); + + const [erc721Token] = await erc721Wrapper.deployDummyTokensAsync(); + const erc721Proxy = await erc721Wrapper.deployProxyAsync(); + await erc721Wrapper.setBalancesAndAllowancesAsync(); + const erc721Balances = await erc721Wrapper.getBalancesAsync(); + + const assetWrapper = new AssetWrapper([erc20Wrapper, erc721Wrapper]); + + const exchangeContract = await ExchangeContract.deployFrom0xArtifactAsync( + artifacts.Exchange, + provider, + txDefaults, + zrxAssetData, + ); + const exchangeWrapper = new ExchangeWrapper(exchangeContract, provider); + await exchangeWrapper.registerAssetProxyAsync(erc20Proxy.address, ownerAddress); + await exchangeWrapper.registerAssetProxyAsync(erc721Proxy.address, ownerAddress); + + await web3Wrapper.awaitTransactionSuccessAsync( + await erc20Proxy.addAuthorizedAddress.sendTransactionAsync(exchangeContract.address, { + from: ownerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + await web3Wrapper.awaitTransactionSuccessAsync( + await erc721Proxy.addAuthorizedAddress.sendTransactionAsync(exchangeContract.address, { + from: ownerAddress, + }), + constants.AWAIT_TRANSACTION_MINED_MS, + ); + + const orderFactory = new OrderFactoryFromScenario( + userAddresses, + zrxToken.address, + [erc20EighteenDecimalTokenA.address, erc20EighteenDecimalTokenB.address], + [erc20FiveDecimalTokenA.address, erc20FiveDecimalTokenB.address], + [erc20ZeroDecimalTokenA.address, erc20ZeroDecimalTokenB.address], + erc721Token, + erc721Balances, + exchangeContract.address, + ); + + const testLibsContract = await TestLibsContract.deployFrom0xArtifactAsync( + libsArtifacts.TestLibs, + provider, + txDefaults, + ); + + const fillOrderCombinatorialUtils = new FillOrderCombinatorialUtils( + orderFactory, + ownerAddress, + makerAddress, + makerPrivateKey, + takerAddress, + zrxAssetData, + exchangeWrapper, + assetWrapper, + testLibsContract, + ); + return fillOrderCombinatorialUtils; +} + +export class FillOrderCombinatorialUtils { + public orderFactory: OrderFactoryFromScenario; + public ownerAddress: string; + public makerAddress: string; + public makerPrivateKey: Buffer; + public takerAddress: string; + public zrxAssetData: string; + public exchangeWrapper: ExchangeWrapper; + public assetWrapper: AssetWrapper; + public testLibsContract: TestLibsContract; + public static generateFillOrderCombinations(): FillScenario[] { + const takerScenarios = [ + TakerScenario.Unspecified, + // TakerScenario.CorrectlySpecified, + // TakerScenario.IncorrectlySpecified, + ]; + const feeRecipientScenarios = [ + FeeRecipientAddressScenario.EthUserAddress, + // FeeRecipientAddressScenario.BurnAddress, + ]; + const makerAssetAmountScenario = [ + OrderAssetAmountScenario.Large, + // OrderAssetAmountScenario.Zero, + // OrderAssetAmountScenario.Small, + ]; + const takerAssetAmountScenario = [ + OrderAssetAmountScenario.Large, + // OrderAssetAmountScenario.Zero, + // OrderAssetAmountScenario.Small, + ]; + const makerFeeScenario = [ + OrderAssetAmountScenario.Large, + // OrderAssetAmountScenario.Small, + // OrderAssetAmountScenario.Zero, + ]; + const takerFeeScenario = [ + OrderAssetAmountScenario.Large, + // OrderAssetAmountScenario.Small, + // OrderAssetAmountScenario.Zero, + ]; + const expirationTimeSecondsScenario = [ + ExpirationTimeSecondsScenario.InFuture, + ExpirationTimeSecondsScenario.InPast, + ]; + const makerAssetDataScenario = [ + AssetDataScenario.ERC20FiveDecimals, + AssetDataScenario.ERC20NonZRXEighteenDecimals, + AssetDataScenario.ERC721, + AssetDataScenario.ZRXFeeToken, + ]; + const takerAssetDataScenario = [ + AssetDataScenario.ERC20FiveDecimals, + AssetDataScenario.ERC20NonZRXEighteenDecimals, + AssetDataScenario.ERC721, + AssetDataScenario.ZRXFeeToken, + ]; + const takerAssetFillAmountScenario = [ + TakerAssetFillAmountScenario.ExactlyRemainingFillableTakerAssetAmount, + // TakerAssetFillAmountScenario.GreaterThanRemainingFillableTakerAssetAmount, + // TakerAssetFillAmountScenario.LessThanRemainingFillableTakerAssetAmount, + ]; + const makerAssetBalanceScenario = [ + BalanceAmountScenario.Higher, + // BalanceAmountScenario.Exact, + // BalanceAmountScenario.TooLow, + ]; + const makerAssetAllowanceScenario = [ + AllowanceAmountScenario.Higher, + // AllowanceAmountScenario.Exact, + // AllowanceAmountScenario.TooLow, + // AllowanceAmountScenario.Unlimited, + ]; + const makerZRXBalanceScenario = [ + BalanceAmountScenario.Higher, + // BalanceAmountScenario.Exact, + // BalanceAmountScenario.TooLow, + ]; + const makerZRXAllowanceScenario = [ + AllowanceAmountScenario.Higher, + // AllowanceAmountScenario.Exact, + // AllowanceAmountScenario.TooLow, + // AllowanceAmountScenario.Unlimited, + ]; + const takerAssetBalanceScenario = [ + BalanceAmountScenario.Higher, + // BalanceAmountScenario.Exact, + // BalanceAmountScenario.TooLow, + ]; + const takerAssetAllowanceScenario = [ + AllowanceAmountScenario.Higher, + // AllowanceAmountScenario.Exact, + // AllowanceAmountScenario.TooLow, + // AllowanceAmountScenario.Unlimited, + ]; + const takerZRXBalanceScenario = [ + BalanceAmountScenario.Higher, + // BalanceAmountScenario.Exact, + // BalanceAmountScenario.TooLow, + ]; + const takerZRXAllowanceScenario = [ + AllowanceAmountScenario.Higher, + // AllowanceAmountScenario.Exact, + // AllowanceAmountScenario.TooLow, + // AllowanceAmountScenario.Unlimited, + ]; + const fillScenarioArrays = FillOrderCombinatorialUtils._getAllCombinations([ + takerScenarios, + feeRecipientScenarios, + makerAssetAmountScenario, + takerAssetAmountScenario, + makerFeeScenario, + takerFeeScenario, + expirationTimeSecondsScenario, + makerAssetDataScenario, + takerAssetDataScenario, + takerAssetFillAmountScenario, + makerAssetBalanceScenario, + makerAssetAllowanceScenario, + makerZRXBalanceScenario, + makerZRXAllowanceScenario, + takerAssetBalanceScenario, + takerAssetAllowanceScenario, + takerZRXBalanceScenario, + takerZRXAllowanceScenario, + ]); + + const fillScenarios = _.map(fillScenarioArrays, fillScenarioArray => { + // tslint:disable:custom-no-magic-numbers + const fillScenario: FillScenario = { + orderScenario: { + takerScenario: fillScenarioArray[0] as TakerScenario, + feeRecipientScenario: fillScenarioArray[1] as FeeRecipientAddressScenario, + makerAssetAmountScenario: fillScenarioArray[2] as OrderAssetAmountScenario, + takerAssetAmountScenario: fillScenarioArray[3] as OrderAssetAmountScenario, + makerFeeScenario: fillScenarioArray[4] as OrderAssetAmountScenario, + takerFeeScenario: fillScenarioArray[5] as OrderAssetAmountScenario, + expirationTimeSecondsScenario: fillScenarioArray[6] as ExpirationTimeSecondsScenario, + makerAssetDataScenario: fillScenarioArray[7] as AssetDataScenario, + takerAssetDataScenario: fillScenarioArray[8] as AssetDataScenario, + }, + takerAssetFillAmountScenario: fillScenarioArray[9] as TakerAssetFillAmountScenario, + makerStateScenario: { + traderAssetBalance: fillScenarioArray[10] as BalanceAmountScenario, + traderAssetAllowance: fillScenarioArray[11] as AllowanceAmountScenario, + zrxFeeBalance: fillScenarioArray[12] as BalanceAmountScenario, + zrxFeeAllowance: fillScenarioArray[13] as AllowanceAmountScenario, + }, + takerStateScenario: { + traderAssetBalance: fillScenarioArray[14] as BalanceAmountScenario, + traderAssetAllowance: fillScenarioArray[15] as AllowanceAmountScenario, + zrxFeeBalance: fillScenarioArray[16] as BalanceAmountScenario, + zrxFeeAllowance: fillScenarioArray[17] as AllowanceAmountScenario, + }, + }; + // tslint:enable:custom-no-magic-numbers + return fillScenario; + }); + + return fillScenarios; + } + /** + * Recursive implementation of generating all combinations of the supplied + * string-containing arrays. + */ + private static _getAllCombinations(arrays: string[][]): string[][] { + // Base case + if (arrays.length === 1) { + const remainingValues = _.map(arrays[0], val => { + return [val]; + }); + return remainingValues; + } else { + const result = []; + const restOfArrays = arrays.slice(1); + const allCombinationsOfRemaining = FillOrderCombinatorialUtils._getAllCombinations(restOfArrays); // recur with the rest of array + // tslint:disable:prefer-for-of + for (let i = 0; i < allCombinationsOfRemaining.length; i++) { + for (let j = 0; j < arrays[0].length; j++) { + result.push([arrays[0][j], ...allCombinationsOfRemaining[i]]); + } + } + // tslint:enable:prefer-for-of + return result; + } + } + constructor( + orderFactory: OrderFactoryFromScenario, + ownerAddress: string, + makerAddress: string, + makerPrivateKey: Buffer, + takerAddress: string, + zrxAssetData: string, + exchangeWrapper: ExchangeWrapper, + assetWrapper: AssetWrapper, + testLibsContract: TestLibsContract, + ) { + this.orderFactory = orderFactory; + this.ownerAddress = ownerAddress; + this.makerAddress = makerAddress; + this.makerPrivateKey = makerPrivateKey; + this.takerAddress = takerAddress; + this.zrxAssetData = zrxAssetData; + this.exchangeWrapper = exchangeWrapper; + this.assetWrapper = assetWrapper; + this.testLibsContract = testLibsContract; + } + public async testFillOrderScenarioAsync( + provider: Provider, + fillScenario: FillScenario, + isVerbose: boolean = false, + ): Promise<void> { + // 1. Generate order + const order = this.orderFactory.generateOrder(fillScenario.orderScenario); + + // 2. Sign order + const orderHashBuff = orderHashUtils.getOrderHashBuffer(order); + const signature = signingUtils.signMessage(orderHashBuff, this.makerPrivateKey, SignatureType.EthSign); + const signedOrder = { + ...order, + signature: `0x${signature.toString('hex')}`, + }; + + const balanceAndProxyAllowanceFetcher = new SimpleAssetBalanceAndProxyAllowanceFetcher(this.assetWrapper); + const orderFilledCancelledFetcher = new SimpleOrderFilledCancelledFetcher( + this.exchangeWrapper, + this.zrxAssetData, + ); + + // 3. Figure out fill amount + const takerAssetFillAmount = await this._getTakerAssetFillAmountAsync( + signedOrder, + fillScenario.takerAssetFillAmountScenario, + balanceAndProxyAllowanceFetcher, + orderFilledCancelledFetcher, + ); + + // 4. Permutate the maker and taker balance/allowance scenarios + await this._modifyTraderStateAsync( + fillScenario.makerStateScenario, + fillScenario.takerStateScenario, + signedOrder, + takerAssetFillAmount, + ); + + // 5. If I fill it by X, what are the resulting balances/allowances/filled amounts expected? + const orderValidationUtils = new OrderValidationUtils(orderFilledCancelledFetcher, provider); + const lazyStore = new BalanceAndProxyAllowanceLazyStore(balanceAndProxyAllowanceFetcher); + const exchangeTransferSimulator = new ExchangeTransferSimulator(lazyStore); + + let fillRevertReasonIfExists; + try { + await orderValidationUtils.validateFillOrderThrowIfInvalidAsync( + exchangeTransferSimulator, + provider, + signedOrder, + takerAssetFillAmount, + this.takerAddress, + this.zrxAssetData, + ); + if (isVerbose) { + logUtils.log(`Expecting fillOrder to succeed.`); + } + } catch (err) { + fillRevertReasonIfExists = err.message; + if (isVerbose) { + logUtils.log(`Expecting fillOrder to fail with:`); + logUtils.log(err); + } + } + + // 6. Fill the order + await this._fillOrderAndAssertOutcomeAsync( + signedOrder, + takerAssetFillAmount, + lazyStore, + fillRevertReasonIfExists, + ); + + await this._abiEncodeFillOrderAndAssertOutcomeAsync(signedOrder, takerAssetFillAmount); + } + private async _fillOrderAndAssertOutcomeAsync( + signedOrder: SignedOrder, + takerAssetFillAmount: BigNumber, + lazyStore: BalanceAndProxyAllowanceLazyStore, + fillRevertReasonIfExists: RevertReason | undefined, + ): Promise<void> { + if (!_.isUndefined(fillRevertReasonIfExists)) { + return expectTransactionFailedAsync( + this.exchangeWrapper.fillOrderAsync(signedOrder, this.takerAddress, { takerAssetFillAmount }), + fillRevertReasonIfExists, + ); + } + + const makerAddress = signedOrder.makerAddress; + const makerAssetData = signedOrder.makerAssetData; + const takerAssetData = signedOrder.takerAssetData; + const feeRecipient = signedOrder.feeRecipientAddress; + + const expMakerAssetBalanceOfMaker = await lazyStore.getBalanceAsync(makerAssetData, makerAddress); + const expMakerAssetAllowanceOfMaker = await lazyStore.getProxyAllowanceAsync(makerAssetData, makerAddress); + const expTakerAssetBalanceOfMaker = await lazyStore.getBalanceAsync(takerAssetData, makerAddress); + const expZRXAssetBalanceOfMaker = await lazyStore.getBalanceAsync(this.zrxAssetData, makerAddress); + const expZRXAssetAllowanceOfMaker = await lazyStore.getProxyAllowanceAsync(this.zrxAssetData, makerAddress); + const expTakerAssetBalanceOfTaker = await lazyStore.getBalanceAsync(takerAssetData, this.takerAddress); + const expTakerAssetAllowanceOfTaker = await lazyStore.getProxyAllowanceAsync(takerAssetData, this.takerAddress); + const expMakerAssetBalanceOfTaker = await lazyStore.getBalanceAsync(makerAssetData, this.takerAddress); + const expZRXAssetBalanceOfTaker = await lazyStore.getBalanceAsync(this.zrxAssetData, this.takerAddress); + const expZRXAssetAllowanceOfTaker = await lazyStore.getProxyAllowanceAsync( + this.zrxAssetData, + this.takerAddress, + ); + const expZRXAssetBalanceOfFeeRecipient = await lazyStore.getBalanceAsync(this.zrxAssetData, feeRecipient); + + const orderHash = orderHashUtils.getOrderHashHex(signedOrder); + const alreadyFilledTakerAmount = await this.exchangeWrapper.getTakerAssetFilledAmountAsync(orderHash); + const remainingTakerAmountToFill = signedOrder.takerAssetAmount.minus(alreadyFilledTakerAmount); + const expFilledTakerAmount = takerAssetFillAmount.gt(remainingTakerAmountToFill) + ? remainingTakerAmountToFill + : alreadyFilledTakerAmount.add(takerAssetFillAmount); + + const expFilledMakerAmount = orderUtils.getPartialAmountFloor( + expFilledTakerAmount, + signedOrder.takerAssetAmount, + signedOrder.makerAssetAmount, + ); + const expMakerFeePaid = orderUtils.getPartialAmountFloor( + expFilledTakerAmount, + signedOrder.takerAssetAmount, + signedOrder.makerFee, + ); + const expTakerFeePaid = orderUtils.getPartialAmountFloor( + expFilledTakerAmount, + signedOrder.takerAssetAmount, + signedOrder.takerFee, + ); + const fillResults = await this.exchangeWrapper.getFillOrderResultsAsync(signedOrder, this.takerAddress, { + takerAssetFillAmount, + }); + expect(fillResults.takerAssetFilledAmount).to.be.bignumber.equal( + expFilledTakerAmount, + 'takerAssetFilledAmount', + ); + expect(fillResults.makerAssetFilledAmount).to.be.bignumber.equal( + expFilledMakerAmount, + 'makerAssetFilledAmount', + ); + expect(fillResults.takerFeePaid).to.be.bignumber.equal(expTakerFeePaid, 'takerFeePaid'); + expect(fillResults.makerFeePaid).to.be.bignumber.equal(expMakerFeePaid, 'makerFeePaid'); + + // - Let's fill the order! + const txReceipt = await this.exchangeWrapper.fillOrderAsync(signedOrder, this.takerAddress, { + takerAssetFillAmount, + }); + + const actFilledTakerAmount = await this.exchangeWrapper.getTakerAssetFilledAmountAsync(orderHash); + expect(actFilledTakerAmount).to.be.bignumber.equal(expFilledTakerAmount, 'filledTakerAmount'); + + const exchangeLogs = _.filter( + txReceipt.logs, + txLog => txLog.address === this.exchangeWrapper.getExchangeAddress(), + ); + expect(exchangeLogs.length).to.be.equal(1, 'logs length'); + // tslint:disable-next-line:no-unnecessary-type-assertion + const log = txReceipt.logs[0] as LogWithDecodedArgs<ExchangeFillEventArgs>; + expect(log.args.makerAddress).to.be.equal(makerAddress, 'log.args.makerAddress'); + expect(log.args.takerAddress).to.be.equal(this.takerAddress, 'log.args.this.takerAddress'); + expect(log.args.feeRecipientAddress).to.be.equal(feeRecipient, 'log.args.feeRecipientAddress'); + expect(log.args.makerAssetFilledAmount).to.be.bignumber.equal( + expFilledMakerAmount, + 'log.args.makerAssetFilledAmount', + ); + expect(log.args.takerAssetFilledAmount).to.be.bignumber.equal( + expFilledTakerAmount, + 'log.args.takerAssetFilledAmount', + ); + expect(log.args.makerFeePaid).to.be.bignumber.equal(expMakerFeePaid, 'log.args.makerFeePaid'); + expect(log.args.takerFeePaid).to.be.bignumber.equal(expTakerFeePaid, 'logs.args.takerFeePaid'); + expect(log.args.orderHash).to.be.equal(orderHash, 'log.args.orderHash'); + expect(log.args.makerAssetData).to.be.equal(makerAssetData, 'log.args.makerAssetData'); + expect(log.args.takerAssetData).to.be.equal(takerAssetData, 'log.args.takerAssetData'); + + const actMakerAssetBalanceOfMaker = await this.assetWrapper.getBalanceAsync(makerAddress, makerAssetData); + expect(actMakerAssetBalanceOfMaker).to.be.bignumber.equal( + expMakerAssetBalanceOfMaker, + 'makerAssetBalanceOfMaker', + ); + + const actMakerAssetAllowanceOfMaker = await this.assetWrapper.getProxyAllowanceAsync( + makerAddress, + makerAssetData, + ); + expect(actMakerAssetAllowanceOfMaker).to.be.bignumber.equal( + expMakerAssetAllowanceOfMaker, + 'makerAssetAllowanceOfMaker', + ); + + const actTakerAssetBalanceOfMaker = await this.assetWrapper.getBalanceAsync(makerAddress, takerAssetData); + expect(actTakerAssetBalanceOfMaker).to.be.bignumber.equal( + expTakerAssetBalanceOfMaker, + 'takerAssetBalanceOfMaker', + ); + + const actZRXAssetBalanceOfMaker = await this.assetWrapper.getBalanceAsync(makerAddress, this.zrxAssetData); + expect(actZRXAssetBalanceOfMaker).to.be.bignumber.equal(expZRXAssetBalanceOfMaker, 'ZRXAssetBalanceOfMaker'); + + const actZRXAssetAllowanceOfMaker = await this.assetWrapper.getProxyAllowanceAsync( + makerAddress, + this.zrxAssetData, + ); + expect(actZRXAssetAllowanceOfMaker).to.be.bignumber.equal( + expZRXAssetAllowanceOfMaker, + 'ZRXAssetAllowanceOfMaker', + ); + + const actTakerAssetBalanceOfTaker = await this.assetWrapper.getBalanceAsync(this.takerAddress, takerAssetData); + expect(actTakerAssetBalanceOfTaker).to.be.bignumber.equal( + expTakerAssetBalanceOfTaker, + 'TakerAssetBalanceOfTaker', + ); + + const actTakerAssetAllowanceOfTaker = await this.assetWrapper.getProxyAllowanceAsync( + this.takerAddress, + takerAssetData, + ); + + expect(actTakerAssetAllowanceOfTaker).to.be.bignumber.equal( + expTakerAssetAllowanceOfTaker, + 'TakerAssetAllowanceOfTaker', + ); + + const actMakerAssetBalanceOfTaker = await this.assetWrapper.getBalanceAsync(this.takerAddress, makerAssetData); + expect(actMakerAssetBalanceOfTaker).to.be.bignumber.equal( + expMakerAssetBalanceOfTaker, + 'MakerAssetBalanceOfTaker', + ); + + const actZRXAssetBalanceOfTaker = await this.assetWrapper.getBalanceAsync(this.takerAddress, this.zrxAssetData); + expect(actZRXAssetBalanceOfTaker).to.be.bignumber.equal(expZRXAssetBalanceOfTaker, 'ZRXAssetBalanceOfTaker'); + + const actZRXAssetAllowanceOfTaker = await this.assetWrapper.getProxyAllowanceAsync( + this.takerAddress, + this.zrxAssetData, + ); + expect(actZRXAssetAllowanceOfTaker).to.be.bignumber.equal( + expZRXAssetAllowanceOfTaker, + 'ZRXAssetAllowanceOfTaker', + ); + + const actZRXAssetBalanceOfFeeRecipient = await this.assetWrapper.getBalanceAsync( + feeRecipient, + this.zrxAssetData, + ); + expect(actZRXAssetBalanceOfFeeRecipient).to.be.bignumber.equal( + expZRXAssetBalanceOfFeeRecipient, + 'ZRXAssetBalanceOfFeeRecipient', + ); + } + private async _abiEncodeFillOrderAndAssertOutcomeAsync( + signedOrder: SignedOrder, + takerAssetFillAmount: BigNumber, + ): Promise<void> { + const params = orderUtils.createFill(signedOrder, takerAssetFillAmount); + const expectedAbiEncodedData = this.exchangeWrapper.abiEncodeFillOrder(signedOrder, { takerAssetFillAmount }); + const libsAbiEncodedData = await this.testLibsContract.publicAbiEncodeFillOrder.callAsync( + params.order, + params.takerAssetFillAmount, + params.signature, + ); + expect(libsAbiEncodedData).to.be.equal(expectedAbiEncodedData, 'ABIEncodedFillOrderData'); + } + private async _getTakerAssetFillAmountAsync( + signedOrder: SignedOrder, + takerAssetFillAmountScenario: TakerAssetFillAmountScenario, + balanceAndProxyAllowanceFetcher: SimpleAssetBalanceAndProxyAllowanceFetcher, + orderFilledCancelledFetcher: SimpleOrderFilledCancelledFetcher, + ): Promise<BigNumber> { + const orderStateUtils = new OrderStateUtils(balanceAndProxyAllowanceFetcher, orderFilledCancelledFetcher); + const fillableTakerAssetAmount = await orderStateUtils.getMaxFillableTakerAssetAmountAsync( + signedOrder, + this.takerAddress, + ); + + let takerAssetFillAmount; + switch (takerAssetFillAmountScenario) { + case TakerAssetFillAmountScenario.Zero: + takerAssetFillAmount = new BigNumber(0); + break; + + case TakerAssetFillAmountScenario.ExactlyRemainingFillableTakerAssetAmount: + takerAssetFillAmount = fillableTakerAssetAmount; + break; + + case TakerAssetFillAmountScenario.GreaterThanRemainingFillableTakerAssetAmount: + takerAssetFillAmount = fillableTakerAssetAmount.add(1); + break; + + case TakerAssetFillAmountScenario.LessThanRemainingFillableTakerAssetAmount: + const takerAssetProxyId = assetDataUtils.decodeAssetProxyId(signedOrder.takerAssetData); + const makerAssetProxyId = assetDataUtils.decodeAssetProxyId(signedOrder.makerAssetData); + const isEitherAssetERC721 = + takerAssetProxyId === AssetProxyId.ERC721 || makerAssetProxyId === AssetProxyId.ERC721; + if (isEitherAssetERC721) { + throw new Error( + 'Cannot test `TakerAssetFillAmountScenario.LessThanRemainingFillableTakerAssetAmount` together with ERC721 assets since orders involving ERC721 must always be filled exactly.', + ); + } + takerAssetFillAmount = fillableTakerAssetAmount.div(2).floor(); + break; + + default: + throw errorUtils.spawnSwitchErr('TakerAssetFillAmountScenario', takerAssetFillAmountScenario); + } + + return takerAssetFillAmount; + } + private async _modifyTraderStateAsync( + makerStateScenario: TraderStateScenario, + takerStateScenario: TraderStateScenario, + signedOrder: SignedOrder, + takerAssetFillAmount: BigNumber, + ): Promise<void> { + const makerAssetFillAmount = orderUtils.getPartialAmountFloor( + takerAssetFillAmount, + signedOrder.takerAssetAmount, + signedOrder.makerAssetAmount, + ); + switch (makerStateScenario.traderAssetBalance) { + case BalanceAmountScenario.Higher: + break; // Noop since this is already the default + + case BalanceAmountScenario.TooLow: + if (makerAssetFillAmount.eq(0)) { + throw new Error(`Cannot set makerAssetBalanceOfMaker TooLow if makerAssetFillAmount is 0`); + } + const tooLowBalance = makerAssetFillAmount.minus(1); + await this.assetWrapper.setBalanceAsync( + signedOrder.makerAddress, + signedOrder.makerAssetData, + tooLowBalance, + ); + break; + + case BalanceAmountScenario.Exact: + const exactBalance = makerAssetFillAmount; + await this.assetWrapper.setBalanceAsync( + signedOrder.makerAddress, + signedOrder.makerAssetData, + exactBalance, + ); + break; + + default: + throw errorUtils.spawnSwitchErr( + 'makerStateScenario.traderAssetBalance', + makerStateScenario.traderAssetBalance, + ); + } + + const makerFee = orderUtils.getPartialAmountFloor( + takerAssetFillAmount, + signedOrder.takerAssetAmount, + signedOrder.makerFee, + ); + switch (makerStateScenario.zrxFeeBalance) { + case BalanceAmountScenario.Higher: + break; // Noop since this is already the default + + case BalanceAmountScenario.TooLow: + if (makerFee.eq(0)) { + throw new Error(`Cannot set zrxAsserBalanceOfMaker TooLow if makerFee is 0`); + } + const tooLowBalance = makerFee.minus(1); + await this.assetWrapper.setBalanceAsync(signedOrder.makerAddress, this.zrxAssetData, tooLowBalance); + break; + + case BalanceAmountScenario.Exact: + const exactBalance = makerFee; + await this.assetWrapper.setBalanceAsync(signedOrder.makerAddress, this.zrxAssetData, exactBalance); + break; + + default: + throw errorUtils.spawnSwitchErr('makerStateScenario.zrxFeeBalance', makerStateScenario.zrxFeeBalance); + } + + switch (makerStateScenario.traderAssetAllowance) { + case AllowanceAmountScenario.Higher: + break; // Noop since this is already the default + + case AllowanceAmountScenario.TooLow: + const tooLowAllowance = makerAssetFillAmount.minus(1); + await this.assetWrapper.setProxyAllowanceAsync( + signedOrder.makerAddress, + signedOrder.makerAssetData, + tooLowAllowance, + ); + break; + + case AllowanceAmountScenario.Exact: + const exactAllowance = makerAssetFillAmount; + await this.assetWrapper.setProxyAllowanceAsync( + signedOrder.makerAddress, + signedOrder.makerAssetData, + exactAllowance, + ); + break; + + case AllowanceAmountScenario.Unlimited: + await this.assetWrapper.setProxyAllowanceAsync( + signedOrder.makerAddress, + signedOrder.makerAssetData, + constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS, + ); + break; + + default: + throw errorUtils.spawnSwitchErr( + 'makerStateScenario.traderAssetAllowance', + makerStateScenario.traderAssetAllowance, + ); + } + + switch (makerStateScenario.zrxFeeAllowance) { + case AllowanceAmountScenario.Higher: + break; // Noop since this is already the default + + case AllowanceAmountScenario.TooLow: + const tooLowAllowance = makerFee.minus(1); + await this.assetWrapper.setProxyAllowanceAsync( + signedOrder.makerAddress, + this.zrxAssetData, + tooLowAllowance, + ); + break; + + case AllowanceAmountScenario.Exact: + const exactAllowance = makerFee; + await this.assetWrapper.setProxyAllowanceAsync( + signedOrder.makerAddress, + this.zrxAssetData, + exactAllowance, + ); + break; + + case AllowanceAmountScenario.Unlimited: + await this.assetWrapper.setProxyAllowanceAsync( + signedOrder.makerAddress, + this.zrxAssetData, + constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS, + ); + break; + + default: + throw errorUtils.spawnSwitchErr( + 'makerStateScenario.zrxFeeAllowance', + makerStateScenario.zrxFeeAllowance, + ); + } + + switch (takerStateScenario.traderAssetBalance) { + case BalanceAmountScenario.Higher: + break; // Noop since this is already the default + + case BalanceAmountScenario.TooLow: + if (takerAssetFillAmount.eq(0)) { + throw new Error(`Cannot set takerAssetBalanceOfTaker TooLow if takerAssetFillAmount is 0`); + } + const tooLowBalance = takerAssetFillAmount.minus(1); + await this.assetWrapper.setBalanceAsync(this.takerAddress, signedOrder.takerAssetData, tooLowBalance); + break; + + case BalanceAmountScenario.Exact: + const exactBalance = takerAssetFillAmount; + await this.assetWrapper.setBalanceAsync(this.takerAddress, signedOrder.takerAssetData, exactBalance); + break; + + default: + throw errorUtils.spawnSwitchErr( + 'takerStateScenario.traderAssetBalance', + takerStateScenario.traderAssetBalance, + ); + } + + const takerFee = orderUtils.getPartialAmountFloor( + takerAssetFillAmount, + signedOrder.takerAssetAmount, + signedOrder.takerFee, + ); + switch (takerStateScenario.zrxFeeBalance) { + case BalanceAmountScenario.Higher: + break; // Noop since this is already the default + + case BalanceAmountScenario.TooLow: + if (takerFee.eq(0)) { + throw new Error(`Cannot set zrxAssetBalanceOfTaker TooLow if takerFee is 0`); + } + const tooLowBalance = takerFee.minus(1); + await this.assetWrapper.setBalanceAsync(this.takerAddress, this.zrxAssetData, tooLowBalance); + break; + + case BalanceAmountScenario.Exact: + const exactBalance = takerFee; + await this.assetWrapper.setBalanceAsync(this.takerAddress, this.zrxAssetData, exactBalance); + break; + + default: + throw errorUtils.spawnSwitchErr('takerStateScenario.zrxFeeBalance', takerStateScenario.zrxFeeBalance); + } + + switch (takerStateScenario.traderAssetAllowance) { + case AllowanceAmountScenario.Higher: + break; // Noop since this is already the default + + case AllowanceAmountScenario.TooLow: + const tooLowAllowance = takerAssetFillAmount.minus(1); + await this.assetWrapper.setProxyAllowanceAsync( + this.takerAddress, + signedOrder.takerAssetData, + tooLowAllowance, + ); + break; + + case AllowanceAmountScenario.Exact: + const exactAllowance = takerAssetFillAmount; + await this.assetWrapper.setProxyAllowanceAsync( + this.takerAddress, + signedOrder.takerAssetData, + exactAllowance, + ); + break; + + case AllowanceAmountScenario.Unlimited: + await this.assetWrapper.setProxyAllowanceAsync( + this.takerAddress, + signedOrder.takerAssetData, + constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS, + ); + break; + + default: + throw errorUtils.spawnSwitchErr( + 'takerStateScenario.traderAssetAllowance', + takerStateScenario.traderAssetAllowance, + ); + } + + switch (takerStateScenario.zrxFeeAllowance) { + case AllowanceAmountScenario.Higher: + break; // Noop since this is already the default + + case AllowanceAmountScenario.TooLow: + const tooLowAllowance = takerFee.minus(1); + await this.assetWrapper.setProxyAllowanceAsync(this.takerAddress, this.zrxAssetData, tooLowAllowance); + break; + + case AllowanceAmountScenario.Exact: + const exactAllowance = takerFee; + await this.assetWrapper.setProxyAllowanceAsync(this.takerAddress, this.zrxAssetData, exactAllowance); + break; + + case AllowanceAmountScenario.Unlimited: + await this.assetWrapper.setProxyAllowanceAsync( + this.takerAddress, + this.zrxAssetData, + constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS, + ); + break; + + default: + throw errorUtils.spawnSwitchErr( + 'takerStateScenario.zrxFeeAllowance', + takerStateScenario.zrxFeeAllowance, + ); + } + } +} // tslint:disable:max-file-line-count diff --git a/contracts/core/test/utils/forwarder_wrapper.ts b/contracts/core/test/utils/forwarder_wrapper.ts new file mode 100644 index 000000000..9c5560381 --- /dev/null +++ b/contracts/core/test/utils/forwarder_wrapper.ts @@ -0,0 +1,118 @@ +import { constants, formatters, LogDecoder, MarketSellOrders } from '@0x/contracts-test-utils'; +import { SignedOrder } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; +import { Provider, TransactionReceiptWithDecodedLogs, TxDataPayable } from 'ethereum-types'; +import * as _ from 'lodash'; + +import { ForwarderContract } from '../../generated-wrappers/forwarder'; +import { artifacts } from '../../src/artifacts'; + +export class ForwarderWrapper { + private readonly _web3Wrapper: Web3Wrapper; + private readonly _forwarderContract: ForwarderContract; + private readonly _logDecoder: LogDecoder; + public static getPercentageOfValue(value: BigNumber, percentage: number): BigNumber { + const numerator = constants.PERCENTAGE_DENOMINATOR.times(percentage).dividedToIntegerBy(100); + const newValue = value.times(numerator).dividedToIntegerBy(constants.PERCENTAGE_DENOMINATOR); + return newValue; + } + public static getWethForFeeOrders(feeAmount: BigNumber, feeOrders: SignedOrder[]): BigNumber { + let wethAmount = new BigNumber(0); + let remainingFeeAmount = feeAmount; + _.forEach(feeOrders, feeOrder => { + const feeAvailable = feeOrder.makerAssetAmount.minus(feeOrder.takerFee); + if (!remainingFeeAmount.isZero() && feeAvailable.gt(remainingFeeAmount)) { + wethAmount = wethAmount.plus( + feeOrder.takerAssetAmount + .times(remainingFeeAmount) + .dividedBy(feeAvailable) + .ceil(), + ); + remainingFeeAmount = new BigNumber(0); + } else if (!remainingFeeAmount.isZero()) { + wethAmount = wethAmount.plus(feeOrder.takerAssetAmount); + remainingFeeAmount = remainingFeeAmount.minus(feeAvailable); + } + }); + return wethAmount; + } + private static _createOptimizedOrders(signedOrders: SignedOrder[]): MarketSellOrders { + _.forEach(signedOrders, (signedOrder, index) => { + signedOrder.takerAssetData = constants.NULL_BYTES; + if (index > 0) { + signedOrder.makerAssetData = constants.NULL_BYTES; + } + }); + const params = formatters.createMarketSellOrders(signedOrders, constants.ZERO_AMOUNT); + return params; + } + private static _createOptimizedZrxOrders(signedOrders: SignedOrder[]): MarketSellOrders { + _.forEach(signedOrders, signedOrder => { + signedOrder.makerAssetData = constants.NULL_BYTES; + signedOrder.takerAssetData = constants.NULL_BYTES; + }); + const params = formatters.createMarketSellOrders(signedOrders, constants.ZERO_AMOUNT); + return params; + } + constructor(contractInstance: ForwarderContract, provider: Provider) { + this._forwarderContract = contractInstance; + this._web3Wrapper = new Web3Wrapper(provider); + this._logDecoder = new LogDecoder(this._web3Wrapper, artifacts); + } + public async marketSellOrdersWithEthAsync( + orders: SignedOrder[], + feeOrders: SignedOrder[], + txData: TxDataPayable, + opts: { feePercentage?: BigNumber; feeRecipient?: string } = {}, + ): Promise<TransactionReceiptWithDecodedLogs> { + const params = ForwarderWrapper._createOptimizedOrders(orders); + const feeParams = ForwarderWrapper._createOptimizedZrxOrders(feeOrders); + const feePercentage = _.isUndefined(opts.feePercentage) ? constants.ZERO_AMOUNT : opts.feePercentage; + const feeRecipient = _.isUndefined(opts.feeRecipient) ? constants.NULL_ADDRESS : opts.feeRecipient; + const txHash = await this._forwarderContract.marketSellOrdersWithEth.sendTransactionAsync( + params.orders, + params.signatures, + feeParams.orders, + feeParams.signatures, + feePercentage, + feeRecipient, + txData, + ); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async marketBuyOrdersWithEthAsync( + orders: SignedOrder[], + feeOrders: SignedOrder[], + makerAssetFillAmount: BigNumber, + txData: TxDataPayable, + opts: { feePercentage?: BigNumber; feeRecipient?: string } = {}, + ): Promise<TransactionReceiptWithDecodedLogs> { + const params = ForwarderWrapper._createOptimizedOrders(orders); + const feeParams = ForwarderWrapper._createOptimizedZrxOrders(feeOrders); + const feePercentage = _.isUndefined(opts.feePercentage) ? constants.ZERO_AMOUNT : opts.feePercentage; + const feeRecipient = _.isUndefined(opts.feeRecipient) ? constants.NULL_ADDRESS : opts.feeRecipient; + const txHash = await this._forwarderContract.marketBuyOrdersWithEth.sendTransactionAsync( + params.orders, + makerAssetFillAmount, + params.signatures, + feeParams.orders, + feeParams.signatures, + feePercentage, + feeRecipient, + txData, + ); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } + public async withdrawAssetAsync( + assetData: string, + amount: BigNumber, + txData: TxDataPayable, + ): Promise<TransactionReceiptWithDecodedLogs> { + const txHash = await this._forwarderContract.withdrawAsset.sendTransactionAsync(assetData, amount, txData); + const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); + return tx; + } +} diff --git a/contracts/core/test/utils/match_order_tester.ts b/contracts/core/test/utils/match_order_tester.ts new file mode 100644 index 000000000..8f574704e --- /dev/null +++ b/contracts/core/test/utils/match_order_tester.ts @@ -0,0 +1,562 @@ +import { + chaiSetup, + ERC20BalancesByOwner, + ERC721TokenIdsByOwner, + OrderInfo, + OrderStatus, + TransferAmountsByMatchOrders as TransferAmounts, + TransferAmountsLoggedByMatchOrders as LoggedTransferAmounts, +} from '@0x/contracts-test-utils'; +import { assetDataUtils, orderHashUtils } from '@0x/order-utils'; +import { AssetProxyId, SignedOrder } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import * as chai from 'chai'; +import * as _ from 'lodash'; + +import { TransactionReceiptWithDecodedLogs } from '../../../../node_modules/ethereum-types'; + +import { ERC20Wrapper } from './erc20_wrapper'; +import { ERC721Wrapper } from './erc721_wrapper'; +import { ExchangeWrapper } from './exchange_wrapper'; + +chaiSetup.configure(); +const expect = chai.expect; + +export class MatchOrderTester { + private readonly _exchangeWrapper: ExchangeWrapper; + private readonly _erc20Wrapper: ERC20Wrapper; + private readonly _erc721Wrapper: ERC721Wrapper; + private readonly _feeTokenAddress: string; + /// @dev Checks values from the logs produced by Exchange.matchOrders against the expected transfer amounts. + /// Values include the amounts transferred from the left/right makers and taker, along with + /// the fees paid on each matched order. These are also the return values of MatchOrders. + /// @param signedOrderLeft First matched order. + /// @param signedOrderRight Second matched order. + /// @param transactionReceipt Transaction receipt and logs produced by Exchange.matchOrders. + /// @param takerAddress Address of taker (account that called Exchange.matchOrders) + /// @param expectedTransferAmounts Expected amounts transferred as a result of order matching. + private static async _assertLogsAsync( + signedOrderLeft: SignedOrder, + signedOrderRight: SignedOrder, + transactionReceipt: TransactionReceiptWithDecodedLogs, + takerAddress: string, + expectedTransferAmounts: TransferAmounts, + ): Promise<void> { + // Should have two fill event logs -- one for each order. + const transactionFillLogs = _.filter(transactionReceipt.logs, ['event', 'Fill']); + expect(transactionFillLogs.length, 'Checking number of logs').to.be.equal(2); + // First log is for left fill + const leftLog = (transactionFillLogs[0] as any).args as LoggedTransferAmounts; + expect(leftLog.makerAddress, 'Checking logged maker address of left order').to.be.equal( + signedOrderLeft.makerAddress, + ); + expect(leftLog.takerAddress, 'Checking logged taker address of right order').to.be.equal(takerAddress); + const amountBoughtByLeftMaker = new BigNumber(leftLog.takerAssetFilledAmount); + const amountSoldByLeftMaker = new BigNumber(leftLog.makerAssetFilledAmount); + const feePaidByLeftMaker = new BigNumber(leftLog.makerFeePaid); + const feePaidByTakerLeft = new BigNumber(leftLog.takerFeePaid); + // Second log is for right fill + const rightLog = (transactionFillLogs[1] as any).args as LoggedTransferAmounts; + expect(rightLog.makerAddress, 'Checking logged maker address of right order').to.be.equal( + signedOrderRight.makerAddress, + ); + expect(rightLog.takerAddress, 'Checking loggerd taker address of right order').to.be.equal(takerAddress); + const amountBoughtByRightMaker = new BigNumber(rightLog.takerAssetFilledAmount); + const amountSoldByRightMaker = new BigNumber(rightLog.makerAssetFilledAmount); + const feePaidByRightMaker = new BigNumber(rightLog.makerFeePaid); + const feePaidByTakerRight = new BigNumber(rightLog.takerFeePaid); + // Derive amount received by taker + const amountReceivedByTaker = amountSoldByLeftMaker.sub(amountBoughtByRightMaker); + // Assert log values - left order + expect(amountBoughtByLeftMaker, 'Checking logged amount bought by left maker').to.be.bignumber.equal( + expectedTransferAmounts.amountBoughtByLeftMaker, + ); + expect(amountSoldByLeftMaker, 'Checking logged amount sold by left maker').to.be.bignumber.equal( + expectedTransferAmounts.amountSoldByLeftMaker, + ); + expect(feePaidByLeftMaker, 'Checking logged fee paid by left maker').to.be.bignumber.equal( + expectedTransferAmounts.feePaidByLeftMaker, + ); + expect(feePaidByTakerLeft, 'Checking logged fee paid on left order by taker').to.be.bignumber.equal( + expectedTransferAmounts.feePaidByTakerLeft, + ); + // Assert log values - right order + expect(amountBoughtByRightMaker, 'Checking logged amount bought by right maker').to.be.bignumber.equal( + expectedTransferAmounts.amountBoughtByRightMaker, + ); + expect(amountSoldByRightMaker, 'Checking logged amount sold by right maker').to.be.bignumber.equal( + expectedTransferAmounts.amountSoldByRightMaker, + ); + expect(feePaidByRightMaker, 'Checking logged fee paid by right maker').to.be.bignumber.equal( + expectedTransferAmounts.feePaidByRightMaker, + ); + expect(feePaidByTakerRight, 'Checking logged fee paid on right order by taker').to.be.bignumber.equal( + expectedTransferAmounts.feePaidByTakerRight, + ); + // Assert derived amount received by taker + expect(amountReceivedByTaker, 'Checking logged amount received by taker').to.be.bignumber.equal( + expectedTransferAmounts.amountReceivedByTaker, + ); + } + /// @dev Asserts all expected ERC20 and ERC721 account holdings match the real holdings. + /// @param expectedERC20BalancesByOwner Expected ERC20 balances. + /// @param realERC20BalancesByOwner Real ERC20 balances. + /// @param expectedERC721TokenIdsByOwner Expected ERC721 token owners. + /// @param realERC721TokenIdsByOwner Real ERC20 token owners. + private static async _assertAllKnownBalancesAsync( + expectedERC20BalancesByOwner: ERC20BalancesByOwner, + realERC20BalancesByOwner: ERC20BalancesByOwner, + expectedERC721TokenIdsByOwner: ERC721TokenIdsByOwner, + realERC721TokenIdsByOwner: ERC721TokenIdsByOwner, + ): Promise<void> { + // ERC20 Balances + const areERC20BalancesEqual = _.isEqual(expectedERC20BalancesByOwner, realERC20BalancesByOwner); + expect(areERC20BalancesEqual, 'Checking all known ERC20 account balances').to.be.true(); + // ERC721 Token Ids + const sortedExpectedNewERC721TokenIdsByOwner = _.mapValues(expectedERC721TokenIdsByOwner, tokenIdsByOwner => { + _.mapValues(tokenIdsByOwner, tokenIds => { + _.sortBy(tokenIds); + }); + }); + const sortedNewERC721TokenIdsByOwner = _.mapValues(realERC721TokenIdsByOwner, tokenIdsByOwner => { + _.mapValues(tokenIdsByOwner, tokenIds => { + _.sortBy(tokenIds); + }); + }); + const areERC721TokenIdsEqual = _.isEqual( + sortedExpectedNewERC721TokenIdsByOwner, + sortedNewERC721TokenIdsByOwner, + ); + expect(areERC721TokenIdsEqual, 'Checking all known ERC721 account balances').to.be.true(); + } + /// @dev Constructs new MatchOrderTester. + /// @param exchangeWrapper Used to call to the Exchange. + /// @param erc20Wrapper Used to fetch ERC20 balances. + /// @param erc721Wrapper Used to fetch ERC721 token owners. + /// @param feeTokenAddress Address of ERC20 fee token. + constructor( + exchangeWrapper: ExchangeWrapper, + erc20Wrapper: ERC20Wrapper, + erc721Wrapper: ERC721Wrapper, + feeTokenAddress: string, + ) { + this._exchangeWrapper = exchangeWrapper; + this._erc20Wrapper = erc20Wrapper; + this._erc721Wrapper = erc721Wrapper; + this._feeTokenAddress = feeTokenAddress; + } + /// @dev Matches two complementary orders and asserts results. + /// @param signedOrderLeft First matched order. + /// @param signedOrderRight Second matched order. + /// @param takerAddress Address of taker (the address who matched the two orders) + /// @param erc20BalancesByOwner Current ERC20 balances. + /// @param erc721TokenIdsByOwner Current ERC721 token owners. + /// @param expectedTransferAmounts Expected amounts transferred as a result of order matching. + /// @param initialLeftOrderFilledAmount How much left order has been filled, prior to matching orders. + /// @param initialRightOrderFilledAmount How much the right order has been filled, prior to matching orders. + /// @return New ERC20 balances & ERC721 token owners. + public async matchOrdersAndAssertEffectsAsync( + signedOrderLeft: SignedOrder, + signedOrderRight: SignedOrder, + takerAddress: string, + erc20BalancesByOwner: ERC20BalancesByOwner, + erc721TokenIdsByOwner: ERC721TokenIdsByOwner, + expectedTransferAmounts: TransferAmounts, + initialLeftOrderFilledAmount: BigNumber = new BigNumber(0), + initialRightOrderFilledAmount: BigNumber = new BigNumber(0), + ): Promise<[ERC20BalancesByOwner, ERC721TokenIdsByOwner]> { + // Assert initial order states + await this._assertInitialOrderStatesAsync( + signedOrderLeft, + signedOrderRight, + initialLeftOrderFilledAmount, + initialRightOrderFilledAmount, + ); + // Match left & right orders + const transactionReceipt = await this._exchangeWrapper.matchOrdersAsync( + signedOrderLeft, + signedOrderRight, + takerAddress, + ); + const newERC20BalancesByOwner = await this._erc20Wrapper.getBalancesAsync(); + const newERC721TokenIdsByOwner = await this._erc721Wrapper.getBalancesAsync(); + // Assert logs + await MatchOrderTester._assertLogsAsync( + signedOrderLeft, + signedOrderRight, + transactionReceipt, + takerAddress, + expectedTransferAmounts, + ); + // Assert exchange state + await this._assertExchangeStateAsync( + signedOrderLeft, + signedOrderRight, + initialLeftOrderFilledAmount, + initialRightOrderFilledAmount, + expectedTransferAmounts, + ); + // Assert balances of makers, taker, and fee recipients + await this._assertBalancesAsync( + signedOrderLeft, + signedOrderRight, + erc20BalancesByOwner, + erc721TokenIdsByOwner, + newERC20BalancesByOwner, + newERC721TokenIdsByOwner, + expectedTransferAmounts, + takerAddress, + ); + return [newERC20BalancesByOwner, newERC721TokenIdsByOwner]; + } + /// @dev Asserts initial exchange state for the left and right orders. + /// @param signedOrderLeft First matched order. + /// @param signedOrderRight Second matched order. + /// @param expectedOrderFilledAmountLeft How much left order has been filled, prior to matching orders. + /// @param expectedOrderFilledAmountRight How much the right order has been filled, prior to matching orders. + private async _assertInitialOrderStatesAsync( + signedOrderLeft: SignedOrder, + signedOrderRight: SignedOrder, + expectedOrderFilledAmountLeft: BigNumber, + expectedOrderFilledAmountRight: BigNumber, + ): Promise<void> { + // Assert left order initial state + const orderTakerAssetFilledAmountLeft = await this._exchangeWrapper.getTakerAssetFilledAmountAsync( + orderHashUtils.getOrderHashHex(signedOrderLeft), + ); + expect(orderTakerAssetFilledAmountLeft, 'Checking inital state of left order').to.be.bignumber.equal( + expectedOrderFilledAmountLeft, + ); + // Assert right order initial state + const orderTakerAssetFilledAmountRight = await this._exchangeWrapper.getTakerAssetFilledAmountAsync( + orderHashUtils.getOrderHashHex(signedOrderRight), + ); + expect(orderTakerAssetFilledAmountRight, 'Checking inital state of right order').to.be.bignumber.equal( + expectedOrderFilledAmountRight, + ); + } + /// @dev Asserts the exchange state against the expected amounts transferred by from matching orders. + /// @param signedOrderLeft First matched order. + /// @param signedOrderRight Second matched order. + /// @param initialLeftOrderFilledAmount How much left order has been filled, prior to matching orders. + /// @param initialRightOrderFilledAmount How much the right order has been filled, prior to matching orders. + /// @return TransferAmounts A struct containing the expected transfer amounts. + private async _assertExchangeStateAsync( + signedOrderLeft: SignedOrder, + signedOrderRight: SignedOrder, + initialLeftOrderFilledAmount: BigNumber, + initialRightOrderFilledAmount: BigNumber, + expectedTransferAmounts: TransferAmounts, + ): Promise<void> { + // Assert state for left order: amount bought by left maker + let amountBoughtByLeftMaker = await this._exchangeWrapper.getTakerAssetFilledAmountAsync( + orderHashUtils.getOrderHashHex(signedOrderLeft), + ); + amountBoughtByLeftMaker = amountBoughtByLeftMaker.minus(initialLeftOrderFilledAmount); + expect(amountBoughtByLeftMaker, 'Checking exchange state for left order').to.be.bignumber.equal( + expectedTransferAmounts.amountBoughtByLeftMaker, + ); + // Assert state for right order: amount bought by right maker + let amountBoughtByRightMaker = await this._exchangeWrapper.getTakerAssetFilledAmountAsync( + orderHashUtils.getOrderHashHex(signedOrderRight), + ); + amountBoughtByRightMaker = amountBoughtByRightMaker.minus(initialRightOrderFilledAmount); + expect(amountBoughtByRightMaker, 'Checking exchange state for right order').to.be.bignumber.equal( + expectedTransferAmounts.amountBoughtByRightMaker, + ); + // Assert left order status + const maxAmountBoughtByLeftMaker = signedOrderLeft.takerAssetAmount.minus(initialLeftOrderFilledAmount); + const leftOrderInfo: OrderInfo = await this._exchangeWrapper.getOrderInfoAsync(signedOrderLeft); + const leftExpectedStatus = expectedTransferAmounts.amountBoughtByLeftMaker.equals(maxAmountBoughtByLeftMaker) + ? OrderStatus.FULLY_FILLED + : OrderStatus.FILLABLE; + expect(leftOrderInfo.orderStatus, 'Checking exchange status for left order').to.be.equal(leftExpectedStatus); + // Assert right order status + const maxAmountBoughtByRightMaker = signedOrderRight.takerAssetAmount.minus(initialRightOrderFilledAmount); + const rightOrderInfo: OrderInfo = await this._exchangeWrapper.getOrderInfoAsync(signedOrderRight); + const rightExpectedStatus = expectedTransferAmounts.amountBoughtByRightMaker.equals(maxAmountBoughtByRightMaker) + ? OrderStatus.FULLY_FILLED + : OrderStatus.FILLABLE; + expect(rightOrderInfo.orderStatus, 'Checking exchange status for right order').to.be.equal(rightExpectedStatus); + } + /// @dev Asserts account balances after matching orders. + /// @param signedOrderLeft First matched order. + /// @param signedOrderRight Second matched order. + /// @param initialERC20BalancesByOwner ERC20 balances prior to order matching. + /// @param initialERC721TokenIdsByOwner ERC721 token owners prior to order matching. + /// @param finalERC20BalancesByOwner ERC20 balances after order matching. + /// @param finalERC721TokenIdsByOwner ERC721 token owners after order matching. + /// @param expectedTransferAmounts Expected amounts transferred as a result of order matching. + /// @param takerAddress Address of taker (account that called Exchange.matchOrders). + private async _assertBalancesAsync( + signedOrderLeft: SignedOrder, + signedOrderRight: SignedOrder, + initialERC20BalancesByOwner: ERC20BalancesByOwner, + initialERC721TokenIdsByOwner: ERC721TokenIdsByOwner, + finalERC20BalancesByOwner: ERC20BalancesByOwner, + finalERC721TokenIdsByOwner: ERC721TokenIdsByOwner, + expectedTransferAmounts: TransferAmounts, + takerAddress: string, + ): Promise<void> { + let expectedERC20BalancesByOwner: ERC20BalancesByOwner; + let expectedERC721TokenIdsByOwner: ERC721TokenIdsByOwner; + [expectedERC20BalancesByOwner, expectedERC721TokenIdsByOwner] = this._calculateExpectedBalances( + signedOrderLeft, + signedOrderRight, + takerAddress, + initialERC20BalancesByOwner, + initialERC721TokenIdsByOwner, + expectedTransferAmounts, + ); + // Assert balances of makers, taker, and fee recipients + await this._assertMakerTakerAndFeeRecipientBalancesAsync( + signedOrderLeft, + signedOrderRight, + expectedERC20BalancesByOwner, + finalERC20BalancesByOwner, + expectedERC721TokenIdsByOwner, + finalERC721TokenIdsByOwner, + takerAddress, + ); + // Assert balances for all known accounts + await MatchOrderTester._assertAllKnownBalancesAsync( + expectedERC20BalancesByOwner, + finalERC20BalancesByOwner, + expectedERC721TokenIdsByOwner, + finalERC721TokenIdsByOwner, + ); + } + /// @dev Calculates the expected balances of order makers, fee recipients, and the taker, + /// as a result of matching two orders. + /// @param signedOrderRight First matched order. + /// @param signedOrderRight Second matched order. + /// @param takerAddress Address of taker (the address who matched the two orders) + /// @param erc20BalancesByOwner Current ERC20 balances. + /// @param erc721TokenIdsByOwner Current ERC721 token owners. + /// @param expectedTransferAmounts Expected amounts transferred as a result of order matching. + /// @return Expected ERC20 balances & ERC721 token owners after orders have been matched. + private _calculateExpectedBalances( + signedOrderLeft: SignedOrder, + signedOrderRight: SignedOrder, + takerAddress: string, + erc20BalancesByOwner: ERC20BalancesByOwner, + erc721TokenIdsByOwner: ERC721TokenIdsByOwner, + expectedTransferAmounts: TransferAmounts, + ): [ERC20BalancesByOwner, ERC721TokenIdsByOwner] { + const makerAddressLeft = signedOrderLeft.makerAddress; + const makerAddressRight = signedOrderRight.makerAddress; + const feeRecipientAddressLeft = signedOrderLeft.feeRecipientAddress; + const feeRecipientAddressRight = signedOrderRight.feeRecipientAddress; + // Operations are performed on copies of the balances + const expectedNewERC20BalancesByOwner = _.cloneDeep(erc20BalancesByOwner); + const expectedNewERC721TokenIdsByOwner = _.cloneDeep(erc721TokenIdsByOwner); + // Left Maker Asset (Right Taker Asset) + const makerAssetProxyIdLeft = assetDataUtils.decodeAssetProxyId(signedOrderLeft.makerAssetData); + if (makerAssetProxyIdLeft === AssetProxyId.ERC20) { + // Decode asset data + const erc20AssetData = assetDataUtils.decodeERC20AssetData(signedOrderLeft.makerAssetData); + const makerAssetAddressLeft = erc20AssetData.tokenAddress; + const takerAssetAddressRight = makerAssetAddressLeft; + // Left Maker + expectedNewERC20BalancesByOwner[makerAddressLeft][makerAssetAddressLeft] = expectedNewERC20BalancesByOwner[ + makerAddressLeft + ][makerAssetAddressLeft].minus(expectedTransferAmounts.amountSoldByLeftMaker); + // Right Maker + expectedNewERC20BalancesByOwner[makerAddressRight][ + takerAssetAddressRight + ] = expectedNewERC20BalancesByOwner[makerAddressRight][takerAssetAddressRight].add( + expectedTransferAmounts.amountBoughtByRightMaker, + ); + // Taker + expectedNewERC20BalancesByOwner[takerAddress][makerAssetAddressLeft] = expectedNewERC20BalancesByOwner[ + takerAddress + ][makerAssetAddressLeft].add(expectedTransferAmounts.amountReceivedByTaker); + } else if (makerAssetProxyIdLeft === AssetProxyId.ERC721) { + // Decode asset data + const erc721AssetData = assetDataUtils.decodeERC721AssetData(signedOrderLeft.makerAssetData); + const makerAssetAddressLeft = erc721AssetData.tokenAddress; + const makerAssetIdLeft = erc721AssetData.tokenId; + const takerAssetAddressRight = makerAssetAddressLeft; + const takerAssetIdRight = makerAssetIdLeft; + // Left Maker + _.remove(expectedNewERC721TokenIdsByOwner[makerAddressLeft][makerAssetAddressLeft], makerAssetIdLeft); + // Right Maker + expectedNewERC721TokenIdsByOwner[makerAddressRight][takerAssetAddressRight].push(takerAssetIdRight); + // Taker: Since there is only 1 asset transferred, the taker does not receive any of the left maker asset. + } + // Left Taker Asset (Right Maker Asset) + // Note: This exchange is only between the order makers: the Taker does not receive any of the left taker asset. + const takerAssetProxyIdLeft = assetDataUtils.decodeAssetProxyId(signedOrderLeft.takerAssetData); + if (takerAssetProxyIdLeft === AssetProxyId.ERC20) { + // Decode asset data + const erc20AssetData = assetDataUtils.decodeERC20AssetData(signedOrderLeft.takerAssetData); + const takerAssetAddressLeft = erc20AssetData.tokenAddress; + const makerAssetAddressRight = takerAssetAddressLeft; + // Left Maker + expectedNewERC20BalancesByOwner[makerAddressLeft][takerAssetAddressLeft] = expectedNewERC20BalancesByOwner[ + makerAddressLeft + ][takerAssetAddressLeft].add(expectedTransferAmounts.amountBoughtByLeftMaker); + // Right Maker + expectedNewERC20BalancesByOwner[makerAddressRight][ + makerAssetAddressRight + ] = expectedNewERC20BalancesByOwner[makerAddressRight][makerAssetAddressRight].minus( + expectedTransferAmounts.amountSoldByRightMaker, + ); + } else if (takerAssetProxyIdLeft === AssetProxyId.ERC721) { + // Decode asset data + const erc721AssetData = assetDataUtils.decodeERC721AssetData(signedOrderRight.makerAssetData); + const makerAssetAddressRight = erc721AssetData.tokenAddress; + const makerAssetIdRight = erc721AssetData.tokenId; + const takerAssetAddressLeft = makerAssetAddressRight; + const takerAssetIdLeft = makerAssetIdRight; + // Right Maker + _.remove(expectedNewERC721TokenIdsByOwner[makerAddressRight][makerAssetAddressRight], makerAssetIdRight); + // Left Maker + expectedNewERC721TokenIdsByOwner[makerAddressLeft][takerAssetAddressLeft].push(takerAssetIdLeft); + } + // Left Maker Fees + expectedNewERC20BalancesByOwner[makerAddressLeft][this._feeTokenAddress] = expectedNewERC20BalancesByOwner[ + makerAddressLeft + ][this._feeTokenAddress].minus(expectedTransferAmounts.feePaidByLeftMaker); + // Right Maker Fees + expectedNewERC20BalancesByOwner[makerAddressRight][this._feeTokenAddress] = expectedNewERC20BalancesByOwner[ + makerAddressRight + ][this._feeTokenAddress].minus(expectedTransferAmounts.feePaidByRightMaker); + // Taker Fees + expectedNewERC20BalancesByOwner[takerAddress][this._feeTokenAddress] = expectedNewERC20BalancesByOwner[ + takerAddress + ][this._feeTokenAddress].minus( + expectedTransferAmounts.feePaidByTakerLeft.add(expectedTransferAmounts.feePaidByTakerRight), + ); + // Left Fee Recipient Fees + expectedNewERC20BalancesByOwner[feeRecipientAddressLeft][ + this._feeTokenAddress + ] = expectedNewERC20BalancesByOwner[feeRecipientAddressLeft][this._feeTokenAddress].add( + expectedTransferAmounts.feePaidByLeftMaker.add(expectedTransferAmounts.feePaidByTakerLeft), + ); + // Right Fee Recipient Fees + expectedNewERC20BalancesByOwner[feeRecipientAddressRight][ + this._feeTokenAddress + ] = expectedNewERC20BalancesByOwner[feeRecipientAddressRight][this._feeTokenAddress].add( + expectedTransferAmounts.feePaidByRightMaker.add(expectedTransferAmounts.feePaidByTakerRight), + ); + + return [expectedNewERC20BalancesByOwner, expectedNewERC721TokenIdsByOwner]; + } + /// @dev Asserts ERC20 account balances and ERC721 token holdings that result from order matching. + /// Specifically checks balances of makers, taker and fee recipients. + /// @param signedOrderLeft First matched order. + /// @param signedOrderRight Second matched order. + /// @param expectedERC20BalancesByOwner Expected ERC20 balances. + /// @param realERC20BalancesByOwner Real ERC20 balances. + /// @param expectedERC721TokenIdsByOwner Expected ERC721 token owners. + /// @param realERC721TokenIdsByOwner Real ERC20 token owners. + /// @param takerAddress Address of taker (account that called Exchange.matchOrders). + private async _assertMakerTakerAndFeeRecipientBalancesAsync( + signedOrderLeft: SignedOrder, + signedOrderRight: SignedOrder, + expectedERC20BalancesByOwner: ERC20BalancesByOwner, + realERC20BalancesByOwner: ERC20BalancesByOwner, + expectedERC721TokenIdsByOwner: ERC721TokenIdsByOwner, + realERC721TokenIdsByOwner: ERC721TokenIdsByOwner, + takerAddress: string, + ): Promise<void> { + // Individual balance comparisons + const makerAssetProxyIdLeft = assetDataUtils.decodeAssetProxyId(signedOrderLeft.makerAssetData); + const makerERC20AssetDataLeft = + makerAssetProxyIdLeft === AssetProxyId.ERC20 + ? assetDataUtils.decodeERC20AssetData(signedOrderLeft.makerAssetData) + : assetDataUtils.decodeERC721AssetData(signedOrderLeft.makerAssetData); + const makerAssetAddressLeft = makerERC20AssetDataLeft.tokenAddress; + const makerAssetProxyIdRight = assetDataUtils.decodeAssetProxyId(signedOrderRight.makerAssetData); + const makerERC20AssetDataRight = + makerAssetProxyIdRight === AssetProxyId.ERC20 + ? assetDataUtils.decodeERC20AssetData(signedOrderRight.makerAssetData) + : assetDataUtils.decodeERC721AssetData(signedOrderRight.makerAssetData); + const makerAssetAddressRight = makerERC20AssetDataRight.tokenAddress; + if (makerAssetProxyIdLeft === AssetProxyId.ERC20) { + expect( + realERC20BalancesByOwner[signedOrderLeft.makerAddress][makerAssetAddressLeft], + 'Checking left maker egress ERC20 account balance', + ).to.be.bignumber.equal(expectedERC20BalancesByOwner[signedOrderLeft.makerAddress][makerAssetAddressLeft]); + expect( + realERC20BalancesByOwner[signedOrderRight.makerAddress][makerAssetAddressLeft], + 'Checking right maker ingress ERC20 account balance', + ).to.be.bignumber.equal(expectedERC20BalancesByOwner[signedOrderRight.makerAddress][makerAssetAddressLeft]); + expect( + realERC20BalancesByOwner[takerAddress][makerAssetAddressLeft], + 'Checking taker ingress ERC20 account balance', + ).to.be.bignumber.equal(expectedERC20BalancesByOwner[takerAddress][makerAssetAddressLeft]); + } else if (makerAssetProxyIdLeft === AssetProxyId.ERC721) { + expect( + realERC721TokenIdsByOwner[signedOrderLeft.makerAddress][makerAssetAddressLeft].sort(), + 'Checking left maker egress ERC721 account holdings', + ).to.be.deep.equal( + expectedERC721TokenIdsByOwner[signedOrderLeft.makerAddress][makerAssetAddressLeft].sort(), + ); + expect( + realERC721TokenIdsByOwner[signedOrderRight.makerAddress][makerAssetAddressLeft].sort(), + 'Checking right maker ERC721 account holdings', + ).to.be.deep.equal( + expectedERC721TokenIdsByOwner[signedOrderRight.makerAddress][makerAssetAddressLeft].sort(), + ); + expect( + realERC721TokenIdsByOwner[takerAddress][makerAssetAddressLeft].sort(), + 'Checking taker ingress ERC721 account holdings', + ).to.be.deep.equal(expectedERC721TokenIdsByOwner[takerAddress][makerAssetAddressLeft].sort()); + } else { + throw new Error(`Unhandled Asset Proxy ID: ${makerAssetProxyIdLeft}`); + } + if (makerAssetProxyIdRight === AssetProxyId.ERC20) { + expect( + realERC20BalancesByOwner[signedOrderLeft.makerAddress][makerAssetAddressRight], + 'Checking left maker ingress ERC20 account balance', + ).to.be.bignumber.equal(expectedERC20BalancesByOwner[signedOrderLeft.makerAddress][makerAssetAddressRight]); + expect( + realERC20BalancesByOwner[signedOrderRight.makerAddress][makerAssetAddressRight], + 'Checking right maker egress ERC20 account balance', + ).to.be.bignumber.equal( + expectedERC20BalancesByOwner[signedOrderRight.makerAddress][makerAssetAddressRight], + ); + } else if (makerAssetProxyIdRight === AssetProxyId.ERC721) { + expect( + realERC721TokenIdsByOwner[signedOrderLeft.makerAddress][makerAssetAddressRight].sort(), + 'Checking left maker ingress ERC721 account holdings', + ).to.be.deep.equal( + expectedERC721TokenIdsByOwner[signedOrderLeft.makerAddress][makerAssetAddressRight].sort(), + ); + expect( + realERC721TokenIdsByOwner[signedOrderRight.makerAddress][makerAssetAddressRight], + 'Checking right maker agress ERC721 account holdings', + ).to.be.deep.equal(expectedERC721TokenIdsByOwner[signedOrderRight.makerAddress][makerAssetAddressRight]); + } else { + throw new Error(`Unhandled Asset Proxy ID: ${makerAssetProxyIdRight}`); + } + // Paid fees + expect( + realERC20BalancesByOwner[signedOrderLeft.makerAddress][this._feeTokenAddress], + 'Checking left maker egress ERC20 account fees', + ).to.be.bignumber.equal(expectedERC20BalancesByOwner[signedOrderLeft.makerAddress][this._feeTokenAddress]); + expect( + realERC20BalancesByOwner[signedOrderRight.makerAddress][this._feeTokenAddress], + 'Checking right maker egress ERC20 account fees', + ).to.be.bignumber.equal(expectedERC20BalancesByOwner[signedOrderRight.makerAddress][this._feeTokenAddress]); + expect( + realERC20BalancesByOwner[takerAddress][this._feeTokenAddress], + 'Checking taker egress ERC20 account fees', + ).to.be.bignumber.equal(expectedERC20BalancesByOwner[takerAddress][this._feeTokenAddress]); + // Received fees + expect( + realERC20BalancesByOwner[signedOrderLeft.feeRecipientAddress][this._feeTokenAddress], + 'Checking left fee recipient ingress ERC20 account fees', + ).to.be.bignumber.equal( + expectedERC20BalancesByOwner[signedOrderLeft.feeRecipientAddress][this._feeTokenAddress], + ); + expect( + realERC20BalancesByOwner[signedOrderRight.feeRecipientAddress][this._feeTokenAddress], + 'Checking right fee receipient ingress ERC20 account fees', + ).to.be.bignumber.equal( + expectedERC20BalancesByOwner[signedOrderRight.feeRecipientAddress][this._feeTokenAddress], + ); + } +} // tslint:disable-line:max-file-line-count diff --git a/contracts/core/test/utils/order_factory_from_scenario.ts b/contracts/core/test/utils/order_factory_from_scenario.ts new file mode 100644 index 000000000..1cc962020 --- /dev/null +++ b/contracts/core/test/utils/order_factory_from_scenario.ts @@ -0,0 +1,295 @@ +import { + AssetDataScenario, + constants, + ERC721TokenIdsByOwner, + ExpirationTimeSecondsScenario, + FeeRecipientAddressScenario, + OrderAssetAmountScenario, + OrderScenario, + TakerScenario, +} from '@0x/contracts-test-utils'; +import { assetDataUtils, generatePseudoRandomSalt } from '@0x/order-utils'; +import { Order } from '@0x/types'; +import { BigNumber, errorUtils } from '@0x/utils'; + +import { DummyERC721TokenContract } from '../../generated-wrappers/dummy_erc721_token'; + +const TEN_UNITS_EIGHTEEN_DECIMALS = new BigNumber(10_000_000_000_000_000_000); +const FIVE_UNITS_EIGHTEEN_DECIMALS = new BigNumber(5_000_000_000_000_000_000); +const POINT_ONE_UNITS_EIGHTEEN_DECIMALS = new BigNumber(100_000_000_000_000_000); +const POINT_ZERO_FIVE_UNITS_EIGHTEEN_DECIMALS = new BigNumber(50_000_000_000_000_000); +const TEN_UNITS_FIVE_DECIMALS = new BigNumber(1_000_000); +const FIVE_UNITS_FIVE_DECIMALS = new BigNumber(500_000); +const TEN_UNITS_ZERO_DECIMALS = new BigNumber(10); +const ONE_THOUSAND_UNITS_ZERO_DECIMALS = new BigNumber(1000); +const ONE_NFT_UNIT = new BigNumber(1); + +export class OrderFactoryFromScenario { + private readonly _userAddresses: string[]; + private readonly _zrxAddress: string; + private readonly _nonZrxERC20EighteenDecimalTokenAddresses: string[]; + private readonly _erc20FiveDecimalTokenAddresses: string[]; + private readonly _erc20ZeroDecimalTokenAddresses: string[]; + private readonly _erc721Token: DummyERC721TokenContract; + private readonly _erc721Balances: ERC721TokenIdsByOwner; + private readonly _exchangeAddress: string; + constructor( + userAddresses: string[], + zrxAddress: string, + nonZrxERC20EighteenDecimalTokenAddresses: string[], + erc20FiveDecimalTokenAddresses: string[], + erc20ZeroDecimalTokenAddresses: string[], + erc721Token: DummyERC721TokenContract, + erc721Balances: ERC721TokenIdsByOwner, + exchangeAddress: string, + ) { + this._userAddresses = userAddresses; + this._zrxAddress = zrxAddress; + this._nonZrxERC20EighteenDecimalTokenAddresses = nonZrxERC20EighteenDecimalTokenAddresses; + this._erc20FiveDecimalTokenAddresses = erc20FiveDecimalTokenAddresses; + this._erc20ZeroDecimalTokenAddresses = erc20ZeroDecimalTokenAddresses; + this._erc721Token = erc721Token; + this._erc721Balances = erc721Balances; + this._exchangeAddress = exchangeAddress; + } + public generateOrder(orderScenario: OrderScenario): Order { + const makerAddress = this._userAddresses[1]; + let takerAddress = this._userAddresses[2]; + const erc721MakerAssetIds = this._erc721Balances[makerAddress][this._erc721Token.address]; + const erc721TakerAssetIds = this._erc721Balances[takerAddress][this._erc721Token.address]; + let feeRecipientAddress; + let makerAssetAmount; + let takerAssetAmount; + let makerFee; + let takerFee; + let expirationTimeSeconds; + let makerAssetData; + let takerAssetData; + + switch (orderScenario.feeRecipientScenario) { + case FeeRecipientAddressScenario.BurnAddress: + feeRecipientAddress = constants.NULL_ADDRESS; + break; + case FeeRecipientAddressScenario.EthUserAddress: + feeRecipientAddress = this._userAddresses[4]; + break; + default: + throw errorUtils.spawnSwitchErr('FeeRecipientAddressScenario', orderScenario.feeRecipientScenario); + } + + switch (orderScenario.makerAssetDataScenario) { + case AssetDataScenario.ZRXFeeToken: + makerAssetData = assetDataUtils.encodeERC20AssetData(this._zrxAddress); + break; + case AssetDataScenario.ERC20NonZRXEighteenDecimals: + makerAssetData = assetDataUtils.encodeERC20AssetData(this._nonZrxERC20EighteenDecimalTokenAddresses[0]); + break; + case AssetDataScenario.ERC20FiveDecimals: + makerAssetData = assetDataUtils.encodeERC20AssetData(this._erc20FiveDecimalTokenAddresses[0]); + break; + case AssetDataScenario.ERC721: + makerAssetData = assetDataUtils.encodeERC721AssetData( + this._erc721Token.address, + erc721MakerAssetIds[0], + ); + break; + case AssetDataScenario.ERC20ZeroDecimals: + makerAssetData = assetDataUtils.encodeERC20AssetData(this._erc20ZeroDecimalTokenAddresses[0]); + break; + default: + throw errorUtils.spawnSwitchErr('AssetDataScenario', orderScenario.makerAssetDataScenario); + } + + switch (orderScenario.takerAssetDataScenario) { + case AssetDataScenario.ZRXFeeToken: + takerAssetData = assetDataUtils.encodeERC20AssetData(this._zrxAddress); + break; + case AssetDataScenario.ERC20NonZRXEighteenDecimals: + takerAssetData = assetDataUtils.encodeERC20AssetData(this._nonZrxERC20EighteenDecimalTokenAddresses[1]); + break; + case AssetDataScenario.ERC20FiveDecimals: + takerAssetData = assetDataUtils.encodeERC20AssetData(this._erc20FiveDecimalTokenAddresses[1]); + break; + case AssetDataScenario.ERC721: + takerAssetData = assetDataUtils.encodeERC721AssetData( + this._erc721Token.address, + erc721TakerAssetIds[0], + ); + break; + case AssetDataScenario.ERC20ZeroDecimals: + takerAssetData = assetDataUtils.encodeERC20AssetData(this._erc20ZeroDecimalTokenAddresses[1]); + break; + default: + throw errorUtils.spawnSwitchErr('AssetDataScenario', orderScenario.takerAssetDataScenario); + } + + switch (orderScenario.makerAssetAmountScenario) { + case OrderAssetAmountScenario.Large: + switch (orderScenario.makerAssetDataScenario) { + case AssetDataScenario.ZRXFeeToken: + case AssetDataScenario.ERC20NonZRXEighteenDecimals: + makerAssetAmount = TEN_UNITS_EIGHTEEN_DECIMALS; + break; + case AssetDataScenario.ERC20FiveDecimals: + makerAssetAmount = TEN_UNITS_FIVE_DECIMALS; + break; + case AssetDataScenario.ERC721: + makerAssetAmount = ONE_NFT_UNIT; + break; + case AssetDataScenario.ERC20ZeroDecimals: + makerAssetAmount = ONE_THOUSAND_UNITS_ZERO_DECIMALS; + break; + default: + throw errorUtils.spawnSwitchErr('AssetDataScenario', orderScenario.makerAssetDataScenario); + } + break; + case OrderAssetAmountScenario.Small: + switch (orderScenario.makerAssetDataScenario) { + case AssetDataScenario.ZRXFeeToken: + case AssetDataScenario.ERC20NonZRXEighteenDecimals: + makerAssetAmount = FIVE_UNITS_EIGHTEEN_DECIMALS; + break; + case AssetDataScenario.ERC20FiveDecimals: + makerAssetAmount = FIVE_UNITS_FIVE_DECIMALS; + break; + case AssetDataScenario.ERC721: + makerAssetAmount = ONE_NFT_UNIT; + break; + case AssetDataScenario.ERC20ZeroDecimals: + makerAssetAmount = TEN_UNITS_ZERO_DECIMALS; + break; + default: + throw errorUtils.spawnSwitchErr('AssetDataScenario', orderScenario.makerAssetDataScenario); + } + break; + case OrderAssetAmountScenario.Zero: + makerAssetAmount = new BigNumber(0); + break; + default: + throw errorUtils.spawnSwitchErr('OrderAssetAmountScenario', orderScenario.makerAssetAmountScenario); + } + + switch (orderScenario.takerAssetAmountScenario) { + case OrderAssetAmountScenario.Large: + switch (orderScenario.takerAssetDataScenario) { + case AssetDataScenario.ERC20NonZRXEighteenDecimals: + case AssetDataScenario.ZRXFeeToken: + takerAssetAmount = TEN_UNITS_EIGHTEEN_DECIMALS; + break; + case AssetDataScenario.ERC20FiveDecimals: + takerAssetAmount = TEN_UNITS_FIVE_DECIMALS; + break; + case AssetDataScenario.ERC721: + takerAssetAmount = ONE_NFT_UNIT; + break; + case AssetDataScenario.ERC20ZeroDecimals: + takerAssetAmount = ONE_THOUSAND_UNITS_ZERO_DECIMALS; + break; + default: + throw errorUtils.spawnSwitchErr('AssetDataScenario', orderScenario.takerAssetDataScenario); + } + break; + case OrderAssetAmountScenario.Small: + switch (orderScenario.takerAssetDataScenario) { + case AssetDataScenario.ERC20NonZRXEighteenDecimals: + case AssetDataScenario.ZRXFeeToken: + takerAssetAmount = FIVE_UNITS_EIGHTEEN_DECIMALS; + break; + case AssetDataScenario.ERC20FiveDecimals: + takerAssetAmount = FIVE_UNITS_FIVE_DECIMALS; + break; + case AssetDataScenario.ERC721: + takerAssetAmount = ONE_NFT_UNIT; + break; + case AssetDataScenario.ERC20ZeroDecimals: + takerAssetAmount = TEN_UNITS_ZERO_DECIMALS; + break; + default: + throw errorUtils.spawnSwitchErr('AssetDataScenario', orderScenario.takerAssetDataScenario); + } + break; + case OrderAssetAmountScenario.Zero: + takerAssetAmount = new BigNumber(0); + break; + default: + throw errorUtils.spawnSwitchErr('OrderAssetAmountScenario', orderScenario.takerAssetAmountScenario); + } + + switch (orderScenario.makerFeeScenario) { + case OrderAssetAmountScenario.Large: + makerFee = POINT_ONE_UNITS_EIGHTEEN_DECIMALS; + break; + case OrderAssetAmountScenario.Small: + makerFee = POINT_ZERO_FIVE_UNITS_EIGHTEEN_DECIMALS; + break; + case OrderAssetAmountScenario.Zero: + makerFee = new BigNumber(0); + break; + default: + throw errorUtils.spawnSwitchErr('OrderAssetAmountScenario', orderScenario.makerFeeScenario); + } + + switch (orderScenario.takerFeeScenario) { + case OrderAssetAmountScenario.Large: + takerFee = POINT_ONE_UNITS_EIGHTEEN_DECIMALS; + break; + case OrderAssetAmountScenario.Small: + takerFee = POINT_ZERO_FIVE_UNITS_EIGHTEEN_DECIMALS; + break; + case OrderAssetAmountScenario.Zero: + takerFee = new BigNumber(0); + break; + default: + throw errorUtils.spawnSwitchErr('OrderAssetAmountScenario', orderScenario.takerFeeScenario); + } + + switch (orderScenario.expirationTimeSecondsScenario) { + case ExpirationTimeSecondsScenario.InFuture: + expirationTimeSeconds = new BigNumber(2524604400); // Close to infinite + break; + case ExpirationTimeSecondsScenario.InPast: + expirationTimeSeconds = new BigNumber(0); // Jan 1, 1970 + break; + default: + throw errorUtils.spawnSwitchErr( + 'ExpirationTimeSecondsScenario', + orderScenario.expirationTimeSecondsScenario, + ); + } + + switch (orderScenario.takerScenario) { + case TakerScenario.CorrectlySpecified: + break; // noop since takerAddress is already specified + + case TakerScenario.IncorrectlySpecified: + const notTaker = this._userAddresses[3]; + takerAddress = notTaker; + break; + + case TakerScenario.Unspecified: + takerAddress = constants.NULL_ADDRESS; + break; + + default: + throw errorUtils.spawnSwitchErr('TakerScenario', orderScenario.takerScenario); + } + + const order = { + senderAddress: constants.NULL_ADDRESS, + makerAddress, + takerAddress, + makerFee, + takerFee, + makerAssetAmount, + takerAssetAmount, + makerAssetData, + takerAssetData, + salt: generatePseudoRandomSalt(), + exchangeAddress: this._exchangeAddress, + feeRecipientAddress, + expirationTimeSeconds, + }; + + return order; + } +} diff --git a/contracts/core/test/utils/simple_asset_balance_and_proxy_allowance_fetcher.ts b/contracts/core/test/utils/simple_asset_balance_and_proxy_allowance_fetcher.ts new file mode 100644 index 000000000..64b7dedbe --- /dev/null +++ b/contracts/core/test/utils/simple_asset_balance_and_proxy_allowance_fetcher.ts @@ -0,0 +1,19 @@ +import { AbstractBalanceAndProxyAllowanceFetcher } from '@0x/order-utils'; +import { BigNumber } from '@0x/utils'; + +import { AssetWrapper } from './asset_wrapper'; + +export class SimpleAssetBalanceAndProxyAllowanceFetcher implements AbstractBalanceAndProxyAllowanceFetcher { + private readonly _assetWrapper: AssetWrapper; + constructor(assetWrapper: AssetWrapper) { + this._assetWrapper = assetWrapper; + } + public async getBalanceAsync(assetData: string, userAddress: string): Promise<BigNumber> { + const balance = await this._assetWrapper.getBalanceAsync(userAddress, assetData); + return balance; + } + public async getProxyAllowanceAsync(assetData: string, userAddress: string): Promise<BigNumber> { + const proxyAllowance = await this._assetWrapper.getProxyAllowanceAsync(userAddress, assetData); + return proxyAllowance; + } +} diff --git a/contracts/core/test/utils/simple_order_filled_cancelled_fetcher.ts b/contracts/core/test/utils/simple_order_filled_cancelled_fetcher.ts new file mode 100644 index 000000000..af959e00e --- /dev/null +++ b/contracts/core/test/utils/simple_order_filled_cancelled_fetcher.ts @@ -0,0 +1,31 @@ +import { AbstractOrderFilledCancelledFetcher, orderHashUtils } from '@0x/order-utils'; +import { SignedOrder } from '@0x/types'; +import { BigNumber } from '@0x/utils'; + +import { ExchangeWrapper } from './exchange_wrapper'; + +export class SimpleOrderFilledCancelledFetcher implements AbstractOrderFilledCancelledFetcher { + private readonly _exchangeWrapper: ExchangeWrapper; + private readonly _zrxAssetData: string; + constructor(exchange: ExchangeWrapper, zrxAssetData: string) { + this._exchangeWrapper = exchange; + this._zrxAssetData = zrxAssetData; + } + public async getFilledTakerAmountAsync(orderHash: string): Promise<BigNumber> { + const filledTakerAmount = new BigNumber(await this._exchangeWrapper.getTakerAssetFilledAmountAsync(orderHash)); + return filledTakerAmount; + } + public async isOrderCancelledAsync(signedOrder: SignedOrder): Promise<boolean> { + const orderHash = orderHashUtils.getOrderHashHex(signedOrder); + const isCancelled = await this._exchangeWrapper.isCancelledAsync(orderHash); + const orderEpoch = await this._exchangeWrapper.getOrderEpochAsync( + signedOrder.makerAddress, + signedOrder.senderAddress, + ); + const isCancelledByOrderEpoch = orderEpoch > signedOrder.salt; + return isCancelled || isCancelledByOrderEpoch; + } + public getZRXAssetData(): string { + return this._zrxAssetData; + } +} diff --git a/contracts/core/tsconfig.json b/contracts/core/tsconfig.json new file mode 100644 index 000000000..f2f3c4e97 --- /dev/null +++ b/contracts/core/tsconfig.json @@ -0,0 +1,45 @@ +{ + "extends": "../../tsconfig", + "compilerOptions": { + "outDir": "lib", + "rootDir": ".", + "resolveJsonModule": true + }, + "include": ["./src/**/*", "./test/**/*", "./generated-wrappers/**/*"], + "files": [ + "./generated-artifacts/AssetProxyOwner.json", + "./generated-artifacts/DummyERC20Token.json", + "./generated-artifacts/DummyERC721Receiver.json", + "./generated-artifacts/DummyERC721Token.json", + "./generated-artifacts/DummyMultipleReturnERC20Token.json", + "./generated-artifacts/DummyNoReturnERC20Token.json", + "./generated-artifacts/DutchAuction.json", + "./generated-artifacts/ERC20Proxy.json", + "./generated-artifacts/ERC20Token.json", + "./generated-artifacts/ERC721Proxy.json", + "./generated-artifacts/ERC721Token.json", + "./generated-artifacts/Exchange.json", + "./generated-artifacts/ExchangeWrapper.json", + "./generated-artifacts/Forwarder.json", + "./generated-artifacts/IAssetData.json", + "./generated-artifacts/IAssetProxy.json", + "./generated-artifacts/IValidator.json", + "./generated-artifacts/IWallet.json", + "./generated-artifacts/InvalidERC721Receiver.json", + "./generated-artifacts/MixinAuthorizable.json", + "./generated-artifacts/MultiAssetProxy.json", + "./generated-artifacts/OrderValidator.json", + "./generated-artifacts/ReentrantERC20Token.json", + "./generated-artifacts/TestAssetProxyDispatcher.json", + "./generated-artifacts/TestAssetProxyOwner.json", + "./generated-artifacts/TestExchangeInternals.json", + "./generated-artifacts/TestSignatureValidator.json", + "./generated-artifacts/TestStaticCallReceiver.json", + "./generated-artifacts/Validator.json", + "./generated-artifacts/WETH9.json", + "./generated-artifacts/Wallet.json", + "./generated-artifacts/Whitelist.json", + "./generated-artifacts/ZRXToken.json" + ], + "exclude": ["./deploy/solc/solc_bin"] +} diff --git a/contracts/core/tslint.json b/contracts/core/tslint.json new file mode 100644 index 000000000..1bb3ac2a2 --- /dev/null +++ b/contracts/core/tslint.json @@ -0,0 +1,6 @@ +{ + "extends": ["@0x/tslint-config"], + "rules": { + "custom-no-magic-numbers": false + } +} |