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-rw-r--r--packages/contracts/compiler.json1
-rw-r--r--packages/contracts/package.json11
-rw-r--r--packages/contracts/src/2.0.0/extensions/Forwarder/MixinExchangeWrapper.sol4
-rw-r--r--packages/contracts/src/2.0.0/extensions/Forwarder/MixinForwarderCore.sol4
-rw-r--r--packages/contracts/src/2.0.0/extensions/Forwarder/MixinWeth.sol2
-rw-r--r--packages/contracts/src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol2
-rw-r--r--packages/contracts/src/2.0.0/protocol/Exchange/MixinExchangeCore.sol112
-rw-r--r--packages/contracts/src/2.0.0/protocol/Exchange/MixinMatchOrders.sol7
-rw-r--r--packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol3
-rw-r--r--packages/contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol3
-rw-r--r--packages/contracts/src/2.0.0/protocol/Exchange/MixinWrapperFunctions.sol62
-rw-r--r--packages/contracts/src/2.0.0/protocol/Exchange/libs/LibMath.sol122
-rw-r--r--packages/contracts/src/2.0.0/protocol/Exchange/mixins/MExchangeCore.sol13
-rw-r--r--packages/contracts/src/2.0.0/protocol/Exchange/mixins/MWrapperFunctions.sol40
-rw-r--r--packages/contracts/src/2.0.0/test/ReentrantERC20Token/ReentrantERC20Token.sol182
-rw-r--r--packages/contracts/src/2.0.0/test/TestExchangeInternals/TestExchangeInternals.sol44
-rw-r--r--packages/contracts/src/2.0.0/test/TestLibs/TestLibs.sol42
-rw-r--r--packages/contracts/src/2.0.0/utils/ReentrancyGuard/ReentrancyGuard.sol44
-rw-r--r--packages/contracts/test/exchange/core.ts30
-rw-r--r--packages/contracts/test/exchange/internal.ts158
-rw-r--r--packages/contracts/test/exchange/libs.ts72
-rw-r--r--packages/contracts/test/exchange/match_orders.ts173
-rw-r--r--packages/contracts/test/exchange/wrapper.ts193
-rw-r--r--packages/contracts/test/utils/artifacts.ts2
-rw-r--r--packages/contracts/test/utils/constants.ts12
-rw-r--r--packages/contracts/test/utils/fill_order_combinatorial_utils.ts12
-rw-r--r--packages/contracts/test/utils/order_utils.ts2
-rw-r--r--packages/order-utils/src/order_state_utils.ts4
-rw-r--r--packages/order-utils/src/order_validation_utils.ts10
-rw-r--r--packages/order-utils/src/utils.ts2
-rw-r--r--packages/order-utils/test/order_validation_utils_test.ts12
-rw-r--r--packages/types/src/index.ts1
32 files changed, 1081 insertions, 300 deletions
diff --git a/packages/contracts/compiler.json b/packages/contracts/compiler.json
index 27bb69a36..f66114e87 100644
--- a/packages/contracts/compiler.json
+++ b/packages/contracts/compiler.json
@@ -40,6 +40,7 @@
"MultiSigWallet",
"MultiSigWalletWithTimeLock",
"OrderValidator",
+ "ReentrantERC20Token",
"TestAssetProxyOwner",
"TestAssetProxyDispatcher",
"TestConstants",
diff --git a/packages/contracts/package.json b/packages/contracts/package.json
index 0ead2f43f..1c1ac81da 100644
--- a/packages/contracts/package.json
+++ b/packages/contracts/package.json
@@ -20,11 +20,14 @@
"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",
+ "run_mocha":
+ "mocha --require source-map-support/register --require make-promises-safe 'lib/test/**/*.js' --timeout 100000 --bail --exit",
"compile": "sol-compiler --contracts-dir src",
"clean": "shx rm -rf lib generated_contract_wrappers",
- "generate_contract_wrappers": "abi-gen --abis ${npm_package_config_abis} --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output generated_contract_wrappers --backend ethers",
- "lint": "tslint --project . --exclude **/src/generated_contract_wrappers/**/* --exclude **/lib/**/* && yarn lint-contracts",
+ "generate_contract_wrappers":
+ "abi-gen --abis ${npm_package_config_abis} --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output generated_contract_wrappers --backend ethers",
+ "lint":
+ "tslint --project . --exclude **/src/generated_contract_wrappers/**/* --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",
@@ -34,7 +37,7 @@
},
"config": {
"abis":
- "../migrations/artifacts/2.0.0/@(AssetProxyOwner|DummyERC20Token|DummyERC721Receiver|DummyERC721Token|DummyNoReturnERC20Token|ERC20Proxy|ERC721Proxy|Forwarder|Exchange|ExchangeWrapper|IAssetData|IAssetProxy|InvalidERC721Receiver|MixinAuthorizable|MultiSigWallet|MultiSigWalletWithTimeLock|OrderValidator|TestAssetProxyOwner|TestAssetProxyDispatcher|TestConstants|TestExchangeInternals|TestLibBytes|TestLibs|TestSignatureValidator|TestStaticCallReceiver|Validator|Wallet|TokenRegistry|Whitelist|WETH9|ZRXToken).json"
+ "../migrations/artifacts/2.0.0/@(AssetProxyOwner|DummyERC20Token|DummyERC721Receiver|DummyERC721Token|DummyNoReturnERC20Token|ERC20Proxy|ERC721Proxy|Forwarder|Exchange|ExchangeWrapper|IAssetData|IAssetProxy|InvalidERC721Receiver|MixinAuthorizable|MultiSigWallet|MultiSigWalletWithTimeLock|OrderValidator|ReentrantERC20Token|TestAssetProxyOwner|TestAssetProxyDispatcher|TestConstants|TestExchangeInternals|TestLibBytes|TestLibs|TestSignatureValidator|TestStaticCallReceiver|Validator|Wallet|TokenRegistry|Whitelist|WETH9|ZRXToken).json"
},
"repository": {
"type": "git",
diff --git a/packages/contracts/src/2.0.0/extensions/Forwarder/MixinExchangeWrapper.sol b/packages/contracts/src/2.0.0/extensions/Forwarder/MixinExchangeWrapper.sol
index 218713d3c..a7ff400b9 100644
--- a/packages/contracts/src/2.0.0/extensions/Forwarder/MixinExchangeWrapper.sol
+++ b/packages/contracts/src/2.0.0/extensions/Forwarder/MixinExchangeWrapper.sol
@@ -163,7 +163,7 @@ contract MixinExchangeWrapper is
// 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 = getPartialAmount(
+ uint256 remainingTakerAssetFillAmount = getPartialAmountFloor(
orders[i].takerAssetAmount,
orders[i].makerAssetAmount,
remainingMakerAssetFillAmount
@@ -231,7 +231,7 @@ contract MixinExchangeWrapper is
// 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.
- uint256 remainingWethSellAmount = getPartialAmount(
+ uint256 remainingWethSellAmount = getPartialAmountFloor(
orders[i].takerAssetAmount,
safeSub(orders[i].makerAssetAmount, orders[i].takerFee), // our exchange rate after fees
remainingZrxBuyAmount
diff --git a/packages/contracts/src/2.0.0/extensions/Forwarder/MixinForwarderCore.sol b/packages/contracts/src/2.0.0/extensions/Forwarder/MixinForwarderCore.sol
index 42cec4d36..14f191879 100644
--- a/packages/contracts/src/2.0.0/extensions/Forwarder/MixinForwarderCore.sol
+++ b/packages/contracts/src/2.0.0/extensions/Forwarder/MixinForwarderCore.sol
@@ -87,7 +87,7 @@ contract MixinForwarderCore is
uint256 makerAssetAmountPurchased;
if (orders[0].makerAssetData.equals(ZRX_ASSET_DATA)) {
// Calculate amount of WETH that won't be spent on ETH fees.
- wethSellAmount = getPartialAmount(
+ wethSellAmount = getPartialAmountFloor(
PERCENTAGE_DENOMINATOR,
safeAdd(PERCENTAGE_DENOMINATOR, feePercentage),
msg.value
@@ -103,7 +103,7 @@ contract MixinForwarderCore is
makerAssetAmountPurchased = safeSub(orderFillResults.makerAssetFilledAmount, orderFillResults.takerFeePaid);
} else {
// 5% of WETH is reserved for filling feeOrders and paying feeRecipient.
- wethSellAmount = getPartialAmount(
+ wethSellAmount = getPartialAmountFloor(
MAX_WETH_FILL_PERCENTAGE,
PERCENTAGE_DENOMINATOR,
msg.value
diff --git a/packages/contracts/src/2.0.0/extensions/Forwarder/MixinWeth.sol b/packages/contracts/src/2.0.0/extensions/Forwarder/MixinWeth.sol
index 93e85e599..5863b522d 100644
--- a/packages/contracts/src/2.0.0/extensions/Forwarder/MixinWeth.sol
+++ b/packages/contracts/src/2.0.0/extensions/Forwarder/MixinWeth.sol
@@ -82,7 +82,7 @@ contract MixinWeth is
uint256 wethRemaining = safeSub(msg.value, wethSold);
// Calculate ETH fee to pay to feeRecipient.
- uint256 ethFee = getPartialAmount(
+ uint256 ethFee = getPartialAmountFloor(
feePercentage,
PERCENTAGE_DENOMINATOR,
wethSoldExcludingFeeOrders
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol
index e9f882194..80475e6e3 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol
@@ -83,7 +83,7 @@ contract MixinAssetProxyDispatcher is
internal
{
// Do nothing if no amount should be transferred.
- if (amount > 0) {
+ if (amount > 0 && from != to) {
// Ensure assetData length is valid
require(
assetData.length > 3,
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinExchangeCore.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinExchangeCore.sol
index 515606cb9..be163ec97 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinExchangeCore.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinExchangeCore.sol
@@ -19,6 +19,7 @@
pragma solidity 0.4.24;
pragma experimental ABIEncoderV2;
+import "../../utils/ReentrancyGuard/ReentrancyGuard.sol";
import "./libs/LibConstants.sol";
import "./libs/LibFillResults.sol";
import "./libs/LibOrder.sol";
@@ -30,6 +31,7 @@ import "./mixins/MAssetProxyDispatcher.sol";
contract MixinExchangeCore is
+ ReentrancyGuard,
LibConstants,
LibMath,
LibOrder,
@@ -54,6 +56,7 @@ contract MixinExchangeCore is
/// @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.
@@ -86,50 +89,14 @@ contract MixinExchangeCore is
bytes memory signature
)
public
+ nonReentrant
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(
+ fillResults = fillOrderInternal(
order,
- orderInfo,
- takerAddress,
- signature
- );
-
- // Get amount of takerAsset to fill
- uint256 remainingTakerAssetAmount = safeSub(order.takerAssetAmount, orderInfo.orderTakerAssetFilledAmount);
- uint256 takerAssetFilledAmount = min256(takerAssetFillAmount, remainingTakerAssetAmount);
-
- // Compute proportional fill amounts
- fillResults = calculateFillResults(order, takerAssetFilledAmount);
-
- // Validate context
- assertValidFill(
- order,
- orderInfo,
takerAssetFillAmount,
- takerAssetFilledAmount,
- fillResults.makerAssetFilledAmount
- );
-
- // Update exchange internal state
- updateFilledState(
- order,
- takerAddress,
- orderInfo.orderHash,
- orderInfo.orderTakerAssetFilledAmount,
- fillResults
+ signature
);
-
- // Settle order
- settleOrder(order, takerAddress, fillResults);
-
return fillResults;
}
@@ -138,6 +105,7 @@ contract MixinExchangeCore is
/// @param order Order to cancel. Order must be OrderStatus.FILLABLE.
function cancelOrder(Order memory order)
public
+ nonReentrant
{
// Fetch current order status
OrderInfo memory orderInfo = getOrderInfo(order);
@@ -210,6 +178,64 @@ contract MixinExchangeCore is
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 Updates state with results of a fill order.
/// @param order that was filled.
/// @param takerAddress Address of taker who filled the order.
@@ -381,7 +407,7 @@ contract MixinExchangeCore is
// Validate fill order rounding
require(
- !isRoundingError(
+ !isRoundingErrorFloor(
takerAssetFilledAmount,
order.takerAssetAmount,
order.makerAssetAmount
@@ -437,17 +463,17 @@ contract MixinExchangeCore is
{
// Compute proportional transfer amounts
fillResults.takerAssetFilledAmount = takerAssetFilledAmount;
- fillResults.makerAssetFilledAmount = getPartialAmount(
+ fillResults.makerAssetFilledAmount = getPartialAmountFloor(
takerAssetFilledAmount,
order.takerAssetAmount,
order.makerAssetAmount
);
- fillResults.makerFeePaid = getPartialAmount(
+ fillResults.makerFeePaid = getPartialAmountFloor(
takerAssetFilledAmount,
order.takerAssetAmount,
order.makerFee
);
- fillResults.takerFeePaid = getPartialAmount(
+ fillResults.takerFeePaid = getPartialAmountFloor(
takerAssetFilledAmount,
order.takerAssetAmount,
order.takerFee
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinMatchOrders.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinMatchOrders.sol
index c860640c4..bf97557d6 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinMatchOrders.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinMatchOrders.sol
@@ -14,6 +14,7 @@
pragma solidity 0.4.24;
pragma experimental ABIEncoderV2;
+import "../../utils/ReentrancyGuard/ReentrancyGuard.sol";
import "./libs/LibConstants.sol";
import "./libs/LibMath.sol";
import "./libs/LibOrder.sol";
@@ -25,6 +26,7 @@ import "./mixins/MAssetProxyDispatcher.sol";
contract MixinMatchOrders is
+ ReentrancyGuard,
LibConstants,
LibMath,
MAssetProxyDispatcher,
@@ -48,6 +50,7 @@ contract MixinMatchOrders is
bytes memory rightSignature
)
public
+ nonReentrant
returns (LibFillResults.MatchedFillResults memory matchedFillResults)
{
// We assume that rightOrder.takerAssetData == leftOrder.makerAssetData and rightOrder.makerAssetData == leftOrder.takerAssetData.
@@ -193,7 +196,7 @@ contract MixinMatchOrders is
leftTakerAssetFilledAmount = leftTakerAssetAmountRemaining;
// The right order receives an amount proportional to how much was spent.
- rightTakerAssetFilledAmount = getPartialAmount(
+ rightTakerAssetFilledAmount = getPartialAmountFloor(
rightOrder.takerAssetAmount,
rightOrder.makerAssetAmount,
leftTakerAssetFilledAmount
@@ -203,7 +206,7 @@ contract MixinMatchOrders is
rightTakerAssetFilledAmount = rightTakerAssetAmountRemaining;
// The left order receives an amount proportional to how much was spent.
- leftTakerAssetFilledAmount = getPartialAmount(
+ leftTakerAssetFilledAmount = getPartialAmountFloor(
rightOrder.makerAssetAmount,
rightOrder.takerAssetAmount,
rightTakerAssetFilledAmount
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol
index f30adcdb8..4eb6a2fa6 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol
@@ -19,6 +19,7 @@
pragma solidity 0.4.24;
import "../../utils/LibBytes/LibBytes.sol";
+import "../../utils/ReentrancyGuard/ReentrancyGuard.sol";
import "./mixins/MSignatureValidator.sol";
import "./mixins/MTransactions.sol";
import "./interfaces/IWallet.sol";
@@ -26,6 +27,7 @@ import "./interfaces/IValidator.sol";
contract MixinSignatureValidator is
+ ReentrancyGuard,
MSignatureValidator,
MTransactions
{
@@ -69,6 +71,7 @@ contract MixinSignatureValidator is
bool approval
)
external
+ nonReentrant
{
address signerAddress = getCurrentContextAddress();
allowedValidators[signerAddress][validatorAddress] = approval;
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol
index 821d30279..4a59b6c0f 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol
@@ -155,7 +155,8 @@ contract MixinTransactions is
view
returns (address)
{
- address contextAddress = currentContextAddress == address(0) ? msg.sender : currentContextAddress;
+ address currentContextAddress_ = currentContextAddress;
+ address contextAddress = currentContextAddress_ == address(0) ? msg.sender : currentContextAddress_;
return contextAddress;
}
}
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinWrapperFunctions.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinWrapperFunctions.sol
index 86194f461..39fa724cc 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinWrapperFunctions.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinWrapperFunctions.sol
@@ -19,18 +19,22 @@
pragma solidity 0.4.24;
pragma experimental ABIEncoderV2;
+import "../../utils/ReentrancyGuard/ReentrancyGuard.sol";
import "./libs/LibMath.sol";
import "./libs/LibOrder.sol";
import "./libs/LibFillResults.sol";
import "./libs/LibAbiEncoder.sol";
import "./mixins/MExchangeCore.sol";
+import "./mixins/MWrapperFunctions.sol";
contract MixinWrapperFunctions is
+ ReentrancyGuard,
LibMath,
LibFillResults,
LibAbiEncoder,
- MExchangeCore
+ MExchangeCore,
+ MWrapperFunctions
{
/// @dev Fills the input order. Reverts if exact takerAssetFillAmount not filled.
@@ -43,17 +47,14 @@ contract MixinWrapperFunctions is
bytes memory signature
)
public
+ nonReentrant
returns (FillResults memory fillResults)
{
- fillResults = fillOrder(
+ fillResults = fillOrKillOrderInternal(
order,
takerAssetFillAmount,
signature
);
- require(
- fillResults.takerAssetFilledAmount == takerAssetFillAmount,
- "COMPLETE_FILL_FAILED"
- );
return fillResults;
}
@@ -88,14 +89,7 @@ contract MixinWrapperFunctions is
fillOrderCalldata, // write output over input
128 // output size is 128 bytes
)
- switch success
- case 0 {
- mstore(fillResults, 0)
- mstore(add(fillResults, 32), 0)
- mstore(add(fillResults, 64), 0)
- mstore(add(fillResults, 96), 0)
- }
- case 1 {
+ if success {
mstore(fillResults, mload(fillOrderCalldata))
mstore(add(fillResults, 32), mload(add(fillOrderCalldata, 32)))
mstore(add(fillResults, 64), mload(add(fillOrderCalldata, 64)))
@@ -117,11 +111,12 @@ contract MixinWrapperFunctions is
bytes[] memory signatures
)
public
+ nonReentrant
returns (FillResults memory totalFillResults)
{
uint256 ordersLength = orders.length;
for (uint256 i = 0; i != ordersLength; i++) {
- FillResults memory singleFillResults = fillOrder(
+ FillResults memory singleFillResults = fillOrderInternal(
orders[i],
takerAssetFillAmounts[i],
signatures[i]
@@ -143,11 +138,12 @@ contract MixinWrapperFunctions is
bytes[] memory signatures
)
public
+ nonReentrant
returns (FillResults memory totalFillResults)
{
uint256 ordersLength = orders.length;
for (uint256 i = 0; i != ordersLength; i++) {
- FillResults memory singleFillResults = fillOrKillOrder(
+ FillResults memory singleFillResults = fillOrKillOrderInternal(
orders[i],
takerAssetFillAmounts[i],
signatures[i]
@@ -195,6 +191,7 @@ contract MixinWrapperFunctions is
bytes[] memory signatures
)
public
+ nonReentrant
returns (FillResults memory totalFillResults)
{
bytes memory takerAssetData = orders[0].takerAssetData;
@@ -210,7 +207,7 @@ contract MixinWrapperFunctions is
uint256 remainingTakerAssetFillAmount = safeSub(takerAssetFillAmount, totalFillResults.takerAssetFilledAmount);
// Attempt to sell the remaining amount of takerAsset
- FillResults memory singleFillResults = fillOrder(
+ FillResults memory singleFillResults = fillOrderInternal(
orders[i],
remainingTakerAssetFillAmount,
signatures[i]
@@ -282,6 +279,7 @@ contract MixinWrapperFunctions is
bytes[] memory signatures
)
public
+ nonReentrant
returns (FillResults memory totalFillResults)
{
bytes memory makerAssetData = orders[0].makerAssetData;
@@ -298,14 +296,14 @@ contract MixinWrapperFunctions is
// 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 = getPartialAmount(
+ uint256 remainingTakerAssetFillAmount = getPartialAmountFloor(
orders[i].takerAssetAmount,
orders[i].makerAssetAmount,
remainingMakerAssetFillAmount
);
// Attempt to sell the remaining amount of takerAsset
- FillResults memory singleFillResults = fillOrder(
+ FillResults memory singleFillResults = fillOrderInternal(
orders[i],
remainingTakerAssetFillAmount,
signatures[i]
@@ -350,7 +348,7 @@ contract MixinWrapperFunctions is
// 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 = getPartialAmount(
+ uint256 remainingTakerAssetFillAmount = getPartialAmountFloor(
orders[i].takerAssetAmount,
orders[i].makerAssetAmount,
remainingMakerAssetFillAmount
@@ -400,4 +398,28 @@ contract MixinWrapperFunctions is
}
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/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibMath.sol b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibMath.sol
index fa09da6ac..0e0fba5d2 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibMath.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibMath.sol
@@ -25,12 +25,12 @@ contract LibMath is
SafeMath
{
- /// @dev Calculates partial value given a numerator and denominator.
+ /// @dev Calculates partial value given a numerator and denominator rounded down.
/// @param numerator Numerator.
/// @param denominator Denominator.
/// @param target Value to calculate partial of.
- /// @return Partial value of target.
- function getPartialAmount(
+ /// @return Partial value of target rounded down.
+ function getPartialAmountFloor(
uint256 numerator,
uint256 denominator,
uint256 target
@@ -39,19 +39,56 @@ contract LibMath is
pure
returns (uint256 partialAmount)
{
+ require(
+ denominator > 0,
+ "DIVISION_BY_ZERO"
+ );
+
partialAmount = safeDiv(
safeMul(numerator, target),
denominator
);
return partialAmount;
}
-
- /// @dev Checks if rounding error > 0.1%.
+
+ /// @dev Calculates partial value given a numerator and denominator rounded down.
+ /// @param numerator Numerator.
+ /// @param denominator Denominator.
+ /// @param target Value to calculate partial of.
+ /// @return Partial value of target rounded up.
+ function getPartialAmountCeil(
+ uint256 numerator,
+ uint256 denominator,
+ uint256 target
+ )
+ internal
+ pure
+ returns (uint256 partialAmount)
+ {
+ require(
+ denominator > 0,
+ "DIVISION_BY_ZERO"
+ );
+
+ // safeDiv computes `floor(a / b)`. We use the identity (a, b integer):
+ // ceil(a / b) = floor((a + b - 1) / b)
+ // To implement `ceil(a / b)` using safeDiv.
+ partialAmount = safeDiv(
+ safeAdd(
+ safeMul(numerator, target),
+ safeSub(denominator, 1)
+ ),
+ denominator
+ );
+ return partialAmount;
+ }
+
+ /// @dev Checks if rounding error >= 0.1% when rounding down.
/// @param numerator Numerator.
/// @param denominator Denominator.
/// @param target Value to multiply with numerator/denominator.
/// @return Rounding error is present.
- function isRoundingError(
+ function isRoundingErrorFloor(
uint256 numerator,
uint256 denominator,
uint256 target
@@ -60,16 +97,73 @@ contract LibMath is
pure
returns (bool isError)
{
- uint256 remainder = mulmod(target, numerator, denominator);
- if (remainder == 0) {
- return false; // No rounding error.
+ require(
+ denominator > 0,
+ "DIVISION_BY_ZERO"
+ );
+
+ // The absolute rounding error is the difference between the rounded
+ // value and the ideal value. The relative rounding error is the
+ // absolute rounding error divided by the absolute value of the
+ // ideal value. This is undefined when the ideal value is zero.
+ //
+ // The ideal value is `numerator * target / denominator`.
+ // Let's call `numerator * target % denominator` the remainder.
+ // The absolute error is `remainder / denominator`.
+ //
+ // When the ideal value is zero, we require the absolute error to
+ // be zero. Fortunately, this is always the case. The ideal value is
+ // zero iff `numerator == 0` and/or `target == 0`. In this case the
+ // remainder and absolute error are also zero.
+ if (target == 0 || numerator == 0) {
+ return false;
}
-
- uint256 errPercentageTimes1000000 = safeDiv(
- safeMul(remainder, 1000000),
- safeMul(numerator, target)
+
+ // Otherwise, we want the relative rounding error to be strictly
+ // less than 0.1%.
+ // The relative error is `remainder / (numerator * target)`.
+ // We want the relative error less than 1 / 1000:
+ // remainder / (numerator * denominator) < 1 / 1000
+ // or equivalently:
+ // 1000 * remainder < numerator * target
+ // so we have a rounding error iff:
+ // 1000 * remainder >= numerator * target
+ uint256 remainder = mulmod(target, numerator, denominator);
+ isError = safeMul(1000, remainder) >= safeMul(numerator, target);
+ return isError;
+ }
+
+ /// @dev Checks if rounding error >= 0.1% when rounding up.
+ /// @param numerator Numerator.
+ /// @param denominator Denominator.
+ /// @param target Value to multiply with numerator/denominator.
+ /// @return Rounding error is present.
+ function isRoundingErrorCeil(
+ uint256 numerator,
+ uint256 denominator,
+ uint256 target
+ )
+ internal
+ pure
+ returns (bool isError)
+ {
+ require(
+ denominator > 0,
+ "DIVISION_BY_ZERO"
);
- isError = errPercentageTimes1000000 > 1000;
+
+ // See the comments in `isRoundingError`.
+ if (target == 0 || numerator == 0) {
+ // When either is zero, the ideal value and rounded value are zero
+ // and there is no rounding error. (Although the relative error
+ // is undefined.)
+ return false;
+ }
+ // Compute remainder as before
+ uint256 remainder = mulmod(target, numerator, denominator);
+ // TODO: safeMod
+ remainder = safeSub(denominator, remainder) % denominator;
+ isError = safeMul(1000, remainder) >= safeMul(numerator, target);
return isError;
}
}
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MExchangeCore.sol b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MExchangeCore.sol
index 708cb329e..d85913e0f 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MExchangeCore.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MExchangeCore.sol
@@ -59,6 +59,19 @@ contract MExchangeCore is
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 Updates state with results of a fill order.
/// @param order that was filled.
/// @param takerAddress Address of taker who filled the order.
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MWrapperFunctions.sol b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MWrapperFunctions.sol
new file mode 100644
index 000000000..e04d4a429
--- /dev/null
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MWrapperFunctions.sol
@@ -0,0 +1,40 @@
+/*
+
+ 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/LibOrder.sol";
+import "../libs/LibFillResults.sol";
+import "../interfaces/IWrapperFunctions.sol";
+
+
+contract MWrapperFunctions {
+
+ /// @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/packages/contracts/src/2.0.0/test/ReentrantERC20Token/ReentrantERC20Token.sol b/packages/contracts/src/2.0.0/test/ReentrantERC20Token/ReentrantERC20Token.sol
new file mode 100644
index 000000000..8bfdd2e66
--- /dev/null
+++ b/packages/contracts/src/2.0.0/test/ReentrantERC20Token/ReentrantERC20Token.sol
@@ -0,0 +1,182 @@
+/*
+
+ 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 "../../utils/LibBytes/LibBytes.sol";
+import "../../tokens/ERC20Token/ERC20Token.sol";
+import "../../protocol/Exchange/interfaces/IExchange.sol";
+import "../../protocol/Exchange/libs/LibOrder.sol";
+
+
+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,
+ 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.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/packages/contracts/src/2.0.0/test/TestExchangeInternals/TestExchangeInternals.sol b/packages/contracts/src/2.0.0/test/TestExchangeInternals/TestExchangeInternals.sol
index d9cec9edc..da9313e02 100644
--- a/packages/contracts/src/2.0.0/test/TestExchangeInternals/TestExchangeInternals.sol
+++ b/packages/contracts/src/2.0.0/test/TestExchangeInternals/TestExchangeInternals.sol
@@ -67,7 +67,7 @@ contract TestExchangeInternals is
/// @param denominator Denominator.
/// @param target Value to calculate partial of.
/// @return Partial value of target.
- function publicGetPartialAmount(
+ function publicGetPartialAmountFloor(
uint256 numerator,
uint256 denominator,
uint256 target
@@ -76,15 +76,49 @@ contract TestExchangeInternals is
pure
returns (uint256 partialAmount)
{
- return getPartialAmount(numerator, denominator, target);
+ return getPartialAmountFloor(numerator, denominator, target);
}
- /// @dev Checks if rounding error > 0.1%.
+ /// @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 publicIsRoundingError(
+ function publicIsRoundingErrorCeil(
uint256 numerator,
uint256 denominator,
uint256 target
@@ -93,7 +127,7 @@ contract TestExchangeInternals is
pure
returns (bool isError)
{
- return isRoundingError(numerator, denominator, target);
+ return isRoundingErrorCeil(numerator, denominator, target);
}
/// @dev Updates state with results of a fill order.
diff --git a/packages/contracts/src/2.0.0/test/TestLibs/TestLibs.sol b/packages/contracts/src/2.0.0/test/TestLibs/TestLibs.sol
index 4a99dd9c1..c8c58545f 100644
--- a/packages/contracts/src/2.0.0/test/TestLibs/TestLibs.sol
+++ b/packages/contracts/src/2.0.0/test/TestLibs/TestLibs.sol
@@ -49,7 +49,7 @@ contract TestLibs is
return fillOrderCalldata;
}
- function publicGetPartialAmount(
+ function publicGetPartialAmountFloor(
uint256 numerator,
uint256 denominator,
uint256 target
@@ -58,7 +58,7 @@ contract TestLibs is
pure
returns (uint256 partialAmount)
{
- partialAmount = getPartialAmount(
+ partialAmount = getPartialAmountFloor(
numerator,
denominator,
target
@@ -66,7 +66,41 @@ contract TestLibs is
return partialAmount;
}
- function publicIsRoundingError(
+ function publicGetPartialAmountCeil(
+ uint256 numerator,
+ uint256 denominator,
+ uint256 target
+ )
+ public
+ pure
+ returns (uint256 partialAmount)
+ {
+ partialAmount = getPartialAmountCeil(
+ numerator,
+ denominator,
+ target
+ );
+ return partialAmount;
+ }
+
+ function publicIsRoundingErrorFloor(
+ uint256 numerator,
+ uint256 denominator,
+ uint256 target
+ )
+ public
+ pure
+ returns (bool isError)
+ {
+ isError = isRoundingErrorFloor(
+ numerator,
+ denominator,
+ target
+ );
+ return isError;
+ }
+
+ function publicIsRoundingErrorCeil(
uint256 numerator,
uint256 denominator,
uint256 target
@@ -75,7 +109,7 @@ contract TestLibs is
pure
returns (bool isError)
{
- isError = isRoundingError(
+ isError = isRoundingErrorCeil(
numerator,
denominator,
target
diff --git a/packages/contracts/src/2.0.0/utils/ReentrancyGuard/ReentrancyGuard.sol b/packages/contracts/src/2.0.0/utils/ReentrancyGuard/ReentrancyGuard.sol
new file mode 100644
index 000000000..1dee512d4
--- /dev/null
+++ b/packages/contracts/src/2.0.0/utils/ReentrancyGuard/ReentrancyGuard.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 ReentrancyGuard {
+
+ // Locked state of mutex
+ bool private locked = false;
+
+ /// @dev Functions with this modifer cannot be reentered. The mutex will be locked
+ /// before function execution and unlocked after.
+ modifier nonReentrant() {
+ // Ensure mutex is unlocked
+ require(
+ !locked,
+ "REENTRANCY_ILLEGAL"
+ );
+
+ // Lock mutex before function call
+ locked = true;
+
+ // Perform function call
+ _;
+
+ // Unlock mutex after function call
+ locked = false;
+ }
+}
diff --git a/packages/contracts/test/exchange/core.ts b/packages/contracts/test/exchange/core.ts
index f9d8b7783..3bb71b58f 100644
--- a/packages/contracts/test/exchange/core.ts
+++ b/packages/contracts/test/exchange/core.ts
@@ -14,6 +14,7 @@ import { DummyNoReturnERC20TokenContract } from '../../generated_contract_wrappe
import { ERC20ProxyContract } from '../../generated_contract_wrappers/erc20_proxy';
import { ERC721ProxyContract } from '../../generated_contract_wrappers/erc721_proxy';
import { ExchangeCancelEventArgs, ExchangeContract } from '../../generated_contract_wrappers/exchange';
+import { ReentrantERC20TokenContract } from '../../generated_contract_wrappers/reentrant_erc20_token';
import { TestStaticCallReceiverContract } from '../../generated_contract_wrappers/test_static_call_receiver';
import { artifacts } from '../utils/artifacts';
import { expectTransactionFailedAsync } from '../utils/assertions';
@@ -42,6 +43,7 @@ describe('Exchange core', () => {
let zrxToken: DummyERC20TokenContract;
let erc721Token: DummyERC721TokenContract;
let noReturnErc20Token: DummyNoReturnERC20TokenContract;
+ let reentrantErc20Token: ReentrantERC20TokenContract;
let exchange: ExchangeContract;
let erc20Proxy: ERC20ProxyContract;
let erc721Proxy: ERC721ProxyContract;
@@ -117,6 +119,12 @@ describe('Exchange core', () => {
provider,
txDefaults,
);
+ reentrantErc20Token = await ReentrantERC20TokenContract.deployFrom0xArtifactAsync(
+ artifacts.ReentrantERC20Token,
+ provider,
+ txDefaults,
+ exchange.address,
+ );
defaultMakerAssetAddress = erc20TokenA.address;
defaultTakerAssetAddress = erc20TokenB.address;
@@ -144,6 +152,26 @@ describe('Exchange core', () => {
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),
@@ -502,7 +530,7 @@ describe('Exchange core', () => {
// 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: 490000,
+ gas: 600000,
});
const newBalances = await erc20Wrapper.getBalancesAsync();
diff --git a/packages/contracts/test/exchange/internal.ts b/packages/contracts/test/exchange/internal.ts
index 67d1d2d2c..2521665c2 100644
--- a/packages/contracts/test/exchange/internal.ts
+++ b/packages/contracts/test/exchange/internal.ts
@@ -1,6 +1,7 @@
import { BlockchainLifecycle } from '@0xproject/dev-utils';
import { Order, RevertReason, SignedOrder } from '@0xproject/types';
import { BigNumber } from '@0xproject/utils';
+import * as chai from 'chai';
import * as _ from 'lodash';
import { TestExchangeInternalsContract } from '../../generated_contract_wrappers/test_exchange_internals';
@@ -16,6 +17,8 @@ import { FillResults } from '../utils/types';
import { provider, txDefaults, web3Wrapper } from '../utils/web3_wrapper';
chaiSetup.configure();
+const expect = chai.expect;
+
const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
const MAX_UINT256 = new BigNumber(2).pow(256).minus(1);
@@ -43,26 +46,11 @@ const emptySignedOrder: SignedOrder = {
const overflowErrorForCall = new Error(RevertReason.Uint256Overflow);
-async function referenceGetPartialAmountAsync(
- numerator: BigNumber,
- denominator: BigNumber,
- target: BigNumber,
-): Promise<BigNumber> {
- const invalidOpcodeErrorForCall = new Error(await getInvalidOpcodeErrorMessageForCallAsync());
- const product = numerator.mul(target);
- if (product.greaterThan(MAX_UINT256)) {
- throw overflowErrorForCall;
- }
- if (denominator.eq(0)) {
- throw invalidOpcodeErrorForCall;
- }
- return product.dividedToIntegerBy(denominator);
-}
-
describe('Exchange core internal functions', () => {
let testExchange: TestExchangeInternalsContract;
let invalidOpcodeErrorForCall: Error | undefined;
let overflowErrorForSendTransaction: Error | undefined;
+ let divisionByZeroErrorForCall: Error | undefined;
before(async () => {
await blockchainLifecycle.startAsync();
@@ -79,11 +67,29 @@ describe('Exchange core internal functions', () => {
overflowErrorForSendTransaction = new Error(
await getRevertReasonOrErrorMessageForSendTransactionAsync(RevertReason.Uint256Overflow),
);
+ divisionByZeroErrorForCall = new Error(
+ await getRevertReasonOrErrorMessageForSendTransactionAsync(RevertReason.DivisionByZero),
+ );
invalidOpcodeErrorForCall = new Error(await getInvalidOpcodeErrorMessageForCallAsync());
});
// Note(albrow): Don't forget to add beforeEach and afterEach calls to reset
// the blockchain state for any tests which modify it!
+ 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);
+ }
+
describe('addFillResults', async () => {
function makeFillResults(value: BigNumber): FillResults {
return {
@@ -159,18 +165,18 @@ describe('Exchange core internal functions', () => {
// implementation or the Solidity implementation of
// calculateFillResults.
return {
- makerAssetFilledAmount: await referenceGetPartialAmountAsync(
+ makerAssetFilledAmount: await referenceGetPartialAmountFloorAsync(
takerAssetFilledAmount,
orderTakerAssetAmount,
otherAmount,
),
takerAssetFilledAmount,
- makerFeePaid: await referenceGetPartialAmountAsync(
+ makerFeePaid: await referenceGetPartialAmountFloorAsync(
takerAssetFilledAmount,
orderTakerAssetAmount,
otherAmount,
),
- takerFeePaid: await referenceGetPartialAmountAsync(
+ takerFeePaid: await referenceGetPartialAmountFloorAsync(
takerAssetFilledAmount,
orderTakerAssetAmount,
otherAmount,
@@ -193,18 +199,55 @@ describe('Exchange core internal functions', () => {
);
});
- describe('getPartialAmount', async () => {
- async function testGetPartialAmountAsync(
+ describe('getPartialAmountFloor', async () => {
+ async function testGetPartialAmountFloorAsync(
numerator: BigNumber,
denominator: BigNumber,
target: BigNumber,
): Promise<BigNumber> {
- return testExchange.publicGetPartialAmount.callAsync(numerator, denominator, target);
+ return testExchange.publicGetPartialAmountFloor.callAsync(numerator, denominator, target);
}
await testCombinatoriallyWithReferenceFuncAsync(
'getPartialAmount',
- referenceGetPartialAmountAsync,
- testGetPartialAmountAsync,
+ 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],
);
});
@@ -215,33 +258,33 @@ describe('Exchange core internal functions', () => {
denominator: BigNumber,
target: BigNumber,
): Promise<boolean> {
- const product = numerator.mul(target);
if (denominator.eq(0)) {
- throw invalidOpcodeErrorForCall;
+ throw divisionByZeroErrorForCall;
}
- const remainder = product.mod(denominator);
- if (remainder.eq(0)) {
+ 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.gt(product);
if (product.greaterThan(MAX_UINT256)) {
throw overflowErrorForCall;
}
- if (product.eq(0)) {
- throw invalidOpcodeErrorForCall;
- }
- const remainderTimes1000000 = remainder.mul('1000000');
- if (remainderTimes1000000.greaterThan(MAX_UINT256)) {
+ if (remainderTimes1000.greaterThan(MAX_UINT256)) {
throw overflowErrorForCall;
}
- const errPercentageTimes1000000 = remainderTimes1000000.dividedToIntegerBy(product);
- return errPercentageTimes1000000.greaterThan('1000');
+ return isError;
}
async function testIsRoundingErrorAsync(
numerator: BigNumber,
denominator: BigNumber,
target: BigNumber,
): Promise<boolean> {
- return testExchange.publicIsRoundingError.callAsync(numerator, denominator, target);
+ return testExchange.publicIsRoundingErrorFloor.callAsync(numerator, denominator, target);
}
await testCombinatoriallyWithReferenceFuncAsync(
'isRoundingError',
@@ -251,6 +294,49 @@ describe('Exchange core internal functions', () => {
);
});
+ describe('isRoundingErrorCeil', async () => {
+ async function referenceIsRoundingErrorAsync(
+ 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.gt(product);
+ if (product.greaterThan(MAX_UINT256)) {
+ throw overflowErrorForCall;
+ }
+ if (errorTimes1000.greaterThan(MAX_UINT256)) {
+ throw overflowErrorForCall;
+ }
+ return isError;
+ }
+ async function testIsRoundingErrorCeilAsync(
+ numerator: BigNumber,
+ denominator: BigNumber,
+ target: BigNumber,
+ ): Promise<boolean> {
+ return testExchange.publicIsRoundingErrorCeil.callAsync(numerator, denominator, target);
+ }
+ await testCombinatoriallyWithReferenceFuncAsync(
+ 'isRoundingErrorCeil',
+ referenceIsRoundingErrorAsync,
+ 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.
diff --git a/packages/contracts/test/exchange/libs.ts b/packages/contracts/test/exchange/libs.ts
index 6c3305d1d..37234489e 100644
--- a/packages/contracts/test/exchange/libs.ts
+++ b/packages/contracts/test/exchange/libs.ts
@@ -71,29 +71,57 @@ describe('Exchange libs', () => {
// combinatorial tests in test/exchange/internal. They test specific edge
// cases that are not covered by the combinatorial tests.
describe('LibMath', () => {
- it('should return false if there is a rounding error of 0.1%', async () => {
- const numerator = new BigNumber(20);
- const denominator = new BigNumber(999);
- const target = new BigNumber(50);
- // rounding error = ((20*50/999) - floor(20*50/999)) / (20*50/999) = 0.1%
- const isRoundingError = await libs.publicIsRoundingError.callAsync(numerator, denominator, target);
- expect(isRoundingError).to.be.false();
- });
- it('should return false if there is a rounding of 0.09%', async () => {
- const numerator = new BigNumber(20);
- const denominator = new BigNumber(9991);
- const target = new BigNumber(500);
- // rounding error = ((20*500/9991) - floor(20*500/9991)) / (20*500/9991) = 0.09%
- const isRoundingError = await libs.publicIsRoundingError.callAsync(numerator, denominator, target);
- expect(isRoundingError).to.be.false();
+ describe('isRoundingError', () => {
+ it('should return true if there is a rounding error of 0.1%', async () => {
+ const numerator = new BigNumber(20);
+ const denominator = new BigNumber(999);
+ const target = new BigNumber(50);
+ // rounding error = ((20*50/999) - floor(20*50/999)) / (20*50/999) = 0.1%
+ const isRoundingError = await libs.publicIsRoundingErrorFloor.callAsync(numerator, denominator, target);
+ expect(isRoundingError).to.be.true();
+ });
+ it('should return false if there is a rounding of 0.09%', async () => {
+ const numerator = new BigNumber(20);
+ const denominator = new BigNumber(9991);
+ const target = new BigNumber(500);
+ // rounding error = ((20*500/9991) - floor(20*500/9991)) / (20*500/9991) = 0.09%
+ const isRoundingError = await libs.publicIsRoundingErrorFloor.callAsync(numerator, denominator, target);
+ expect(isRoundingError).to.be.false();
+ });
+ it('should return true if there is a rounding error of 0.11%', async () => {
+ const numerator = new BigNumber(20);
+ const denominator = new BigNumber(9989);
+ const target = new BigNumber(500);
+ // rounding error = ((20*500/9989) - floor(20*500/9989)) / (20*500/9989) = 0.011%
+ const isRoundingError = await libs.publicIsRoundingErrorFloor.callAsync(numerator, denominator, target);
+ expect(isRoundingError).to.be.true();
+ });
});
- it('should return true if there is a rounding error of 0.11%', async () => {
- const numerator = new BigNumber(20);
- const denominator = new BigNumber(9989);
- const target = new BigNumber(500);
- // rounding error = ((20*500/9989) - floor(20*500/9989)) / (20*500/9989) = 0.011%
- const isRoundingError = await libs.publicIsRoundingError.callAsync(numerator, denominator, target);
- expect(isRoundingError).to.be.true();
+ describe('isRoundingErrorCeil', () => {
+ it('should return true if there is a rounding error of 0.1%', async () => {
+ const numerator = new BigNumber(20);
+ const denominator = new BigNumber(1001);
+ const target = new BigNumber(50);
+ // rounding error = (ceil(20*50/1001) - (20*50/1001)) / (20*50/1001) = 0.1%
+ const isRoundingError = await libs.publicIsRoundingErrorCeil.callAsync(numerator, denominator, target);
+ expect(isRoundingError).to.be.true();
+ });
+ it('should return false if there is a rounding of 0.09%', async () => {
+ const numerator = new BigNumber(20);
+ const denominator = new BigNumber(10009);
+ const target = new BigNumber(500);
+ // rounding error = (ceil(20*500/10009) - (20*500/10009)) / (20*500/10009) = 0.09%
+ const isRoundingError = await libs.publicIsRoundingErrorCeil.callAsync(numerator, denominator, target);
+ expect(isRoundingError).to.be.false();
+ });
+ it('should return true if there is a rounding error of 0.11%', async () => {
+ const numerator = new BigNumber(20);
+ const denominator = new BigNumber(10011);
+ const target = new BigNumber(500);
+ // rounding error = (ceil(20*500/10011) - (20*500/10011)) / (20*500/10011) = 0.11%
+ const isRoundingError = await libs.publicIsRoundingErrorCeil.callAsync(numerator, denominator, target);
+ expect(isRoundingError).to.be.true();
+ });
});
});
diff --git a/packages/contracts/test/exchange/match_orders.ts b/packages/contracts/test/exchange/match_orders.ts
index 46b3569bd..8cd873a85 100644
--- a/packages/contracts/test/exchange/match_orders.ts
+++ b/packages/contracts/test/exchange/match_orders.ts
@@ -11,6 +11,7 @@ import { DummyERC721TokenContract } from '../../generated_contract_wrappers/dumm
import { ERC20ProxyContract } from '../../generated_contract_wrappers/erc20_proxy';
import { ERC721ProxyContract } from '../../generated_contract_wrappers/erc721_proxy';
import { ExchangeContract } from '../../generated_contract_wrappers/exchange';
+import { ReentrantERC20TokenContract } from '../../generated_contract_wrappers/reentrant_erc20_token';
import { artifacts } from '../utils/artifacts';
import { expectTransactionFailedAsync } from '../utils/assertions';
import { chaiSetup } from '../utils/chai_setup';
@@ -39,6 +40,7 @@ describe('matchOrders', () => {
let erc20TokenB: DummyERC20TokenContract;
let zrxToken: DummyERC20TokenContract;
let erc721Token: DummyERC721TokenContract;
+ let reentrantErc20Token: ReentrantERC20TokenContract;
let exchange: ExchangeContract;
let erc20Proxy: ERC20ProxyContract;
let erc721Proxy: ERC721ProxyContract;
@@ -127,21 +129,39 @@ describe('matchOrders', () => {
}),
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 defaultOrderParams = {
+ 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, defaultOrderParams);
+ orderFactoryLeft = new OrderFactory(privateKeyLeft, defaultOrderParamsLeft);
const privateKeyRight = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(makerAddressRight)];
- orderFactoryRight = new OrderFactory(privateKeyRight, defaultOrderParams);
+ orderFactoryRight = new OrderFactory(privateKeyRight, defaultOrderParamsRight);
// Set match order tester
matchOrderTester = new MatchOrderTester(exchangeWrapper, erc20Wrapper, erc721Wrapper, zrxToken.address);
});
@@ -157,21 +177,44 @@ describe('matchOrders', () => {
erc721TokenIdsByOwner = await erc721Wrapper.getBalancesAsync();
});
+ 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({
- makerAddress: makerAddressLeft,
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
- feeRecipientAddress: feeRecipientAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Match signedOrderLeft with signedOrderRight
await matchOrderTester.matchOrdersAndVerifyBalancesAsync(
@@ -192,18 +235,12 @@ describe('matchOrders', () => {
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({
- makerAddress: makerAddressLeft,
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
- feeRecipientAddress: feeRecipientAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Store original taker balance
const takerInitialBalances = _.cloneDeep(erc20BalancesByOwner[takerAddress][defaultERC20MakerAssetAddress]);
@@ -237,18 +274,12 @@ describe('matchOrders', () => {
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({
- makerAddress: makerAddressLeft,
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
- feeRecipientAddress: feeRecipientAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(20), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(4), 18),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Match orders
await matchOrderTester.matchOrdersAndVerifyBalancesAsync(
@@ -269,18 +300,12 @@ describe('matchOrders', () => {
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({
- makerAddress: makerAddressLeft,
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18),
- feeRecipientAddress: feeRecipientAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Match orders
await matchOrderTester.matchOrdersAndVerifyBalancesAsync(
@@ -301,18 +326,12 @@ describe('matchOrders', () => {
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({
- makerAddress: makerAddressLeft,
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18),
- feeRecipientAddress: feeRecipientAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Match orders
let newERC20BalancesByOwner: ERC20BalancesByOwner;
@@ -340,12 +359,8 @@ describe('matchOrders', () => {
// 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({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), 18),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Match signedOrderLeft with signedOrderRight2
const leftTakerAssetFilledAmount = signedOrderRight.makerAssetAmount;
@@ -370,19 +385,13 @@ describe('matchOrders', () => {
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({
- makerAddress: makerAddressLeft,
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
- feeRecipientAddress: feeRecipientAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Match orders
let newERC20BalancesByOwner: ERC20BalancesByOwner;
@@ -410,10 +419,8 @@ describe('matchOrders', () => {
// 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({
- makerAddress: makerAddressLeft,
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(50), 18),
- feeRecipientAddress: feeRecipientAddressLeft,
});
// Match signedOrderLeft2 with signedOrderRight
const leftTakerAssetFilledAmount = new BigNumber(0);
@@ -441,15 +448,11 @@ describe('matchOrders', () => {
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({
- makerAddress: makerAddressLeft,
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
feeRecipientAddress,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
feeRecipientAddress,
@@ -467,18 +470,12 @@ describe('matchOrders', () => {
it('should transfer the correct amounts if taker is also the left order maker', async () => {
// Create orders to match
const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({
- makerAddress: makerAddressLeft,
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
- feeRecipientAddress: feeRecipientAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Match orders
takerAddress = signedOrderLeft.makerAddress;
@@ -494,18 +491,12 @@ describe('matchOrders', () => {
it('should transfer the correct amounts if taker is also the right order maker', async () => {
// Create orders to match
const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({
- makerAddress: makerAddressLeft,
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
- feeRecipientAddress: feeRecipientAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Match orders
takerAddress = signedOrderRight.makerAddress;
@@ -521,18 +512,12 @@ describe('matchOrders', () => {
it('should transfer the correct amounts if taker is also the left fee recipient', async () => {
// Create orders to match
const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({
- makerAddress: makerAddressLeft,
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
- feeRecipientAddress: feeRecipientAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Match orders
takerAddress = feeRecipientAddressLeft;
@@ -548,18 +533,12 @@ describe('matchOrders', () => {
it('should transfer the correct amounts if taker is also the right fee recipient', async () => {
// Create orders to match
const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({
- makerAddress: makerAddressLeft,
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
- feeRecipientAddress: feeRecipientAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Match orders
takerAddress = feeRecipientAddressRight;
@@ -575,18 +554,12 @@ describe('matchOrders', () => {
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({
- makerAddress: makerAddressLeft,
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
- feeRecipientAddress: makerAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
- feeRecipientAddress: makerAddressRight,
});
// Match orders
await matchOrderTester.matchOrdersAndVerifyBalancesAsync(
@@ -601,18 +574,12 @@ describe('matchOrders', () => {
it('Should throw if left order is not fillable', async () => {
// Create orders to match
const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({
- makerAddress: makerAddressLeft,
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
- feeRecipientAddress: feeRecipientAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Cancel left order
await exchangeWrapper.cancelOrderAsync(signedOrderLeft, signedOrderLeft.makerAddress);
@@ -626,18 +593,12 @@ describe('matchOrders', () => {
it('Should throw if right order is not fillable', async () => {
// Create orders to match
const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({
- makerAddress: makerAddressLeft,
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
- feeRecipientAddress: feeRecipientAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Cancel right order
await exchangeWrapper.cancelOrderAsync(signedOrderRight, signedOrderRight.makerAddress);
@@ -651,18 +612,12 @@ describe('matchOrders', () => {
it('should throw if there is not a positive spread', async () => {
// Create orders to match
const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({
- makerAddress: makerAddressLeft,
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18),
- feeRecipientAddress: feeRecipientAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(1), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(200), 18),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Match orders
return expectTransactionFailedAsync(
@@ -674,18 +629,13 @@ describe('matchOrders', () => {
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({
- makerAddress: makerAddressLeft,
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
- feeRecipientAddress: feeRecipientAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Match orders
return expectTransactionFailedAsync(
@@ -701,20 +651,13 @@ describe('matchOrders', () => {
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({
- makerAddress: makerAddressLeft,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(5), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
- feeRecipientAddress: feeRecipientAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(2), 18),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Match orders
return expectTransactionFailedAsync(
@@ -727,20 +670,14 @@ describe('matchOrders', () => {
// Create orders to match
const erc721TokenToTransfer = erc721LeftMakerAssetIds[0];
const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({
- makerAddress: makerAddressLeft,
makerAssetData: assetDataUtils.encodeERC721AssetData(defaultERC721AssetAddress, erc721TokenToTransfer),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
makerAssetAmount: new BigNumber(1),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
- feeRecipientAddress: feeRecipientAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20TakerAssetAddress),
takerAssetData: assetDataUtils.encodeERC721AssetData(defaultERC721AssetAddress, erc721TokenToTransfer),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
takerAssetAmount: new BigNumber(1),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Match orders
await matchOrderTester.matchOrdersAndVerifyBalancesAsync(
@@ -762,20 +699,14 @@ describe('matchOrders', () => {
// Create orders to match
const erc721TokenToTransfer = erc721RightMakerAssetIds[0];
const signedOrderLeft = await orderFactoryLeft.newSignedOrderAsync({
- makerAddress: makerAddressLeft,
- makerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
takerAssetData: assetDataUtils.encodeERC721AssetData(defaultERC721AssetAddress, erc721TokenToTransfer),
makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
takerAssetAmount: new BigNumber(1),
- feeRecipientAddress: feeRecipientAddressLeft,
});
const signedOrderRight = await orderFactoryRight.newSignedOrderAsync({
- makerAddress: makerAddressRight,
makerAssetData: assetDataUtils.encodeERC721AssetData(defaultERC721AssetAddress, erc721TokenToTransfer),
- takerAssetData: assetDataUtils.encodeERC20AssetData(defaultERC20MakerAssetAddress),
makerAssetAmount: new BigNumber(1),
takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18),
- feeRecipientAddress: feeRecipientAddressRight,
});
// Match orders
await matchOrderTester.matchOrdersAndVerifyBalancesAsync(
diff --git a/packages/contracts/test/exchange/wrapper.ts b/packages/contracts/test/exchange/wrapper.ts
index d48441dca..aadb5ab59 100644
--- a/packages/contracts/test/exchange/wrapper.ts
+++ b/packages/contracts/test/exchange/wrapper.ts
@@ -11,6 +11,7 @@ import { DummyERC721TokenContract } from '../../generated_contract_wrappers/dumm
import { ERC20ProxyContract } from '../../generated_contract_wrappers/erc20_proxy';
import { ERC721ProxyContract } from '../../generated_contract_wrappers/erc721_proxy';
import { ExchangeContract } from '../../generated_contract_wrappers/exchange';
+import { ReentrantERC20TokenContract } from '../../generated_contract_wrappers/reentrant_erc20_token';
import { artifacts } from '../utils/artifacts';
import { expectTransactionFailedAsync } from '../utils/assertions';
import { getLatestBlockTimestampAsync, increaseTimeAndMineBlockAsync } from '../utils/block_timestamp';
@@ -40,6 +41,7 @@ describe('Exchange wrappers', () => {
let exchange: ExchangeContract;
let erc20Proxy: ERC20ProxyContract;
let erc721Proxy: ERC721ProxyContract;
+ let reentrantErc20Token: ReentrantERC20TokenContract;
let exchangeWrapper: ExchangeWrapper;
let erc20Wrapper: ERC20Wrapper;
@@ -104,6 +106,13 @@ describe('Exchange wrappers', () => {
constants.AWAIT_TRANSACTION_MINED_MS,
);
+ reentrantErc20Token = await ReentrantERC20TokenContract.deployFrom0xArtifactAsync(
+ artifacts.ReentrantERC20Token,
+ provider,
+ txDefaults,
+ exchange.address,
+ );
+
defaultMakerAssetAddress = erc20TokenA.address;
defaultTakerAssetAddress = erc20TokenB.address;
@@ -126,6 +135,26 @@ describe('Exchange wrappers', () => {
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),
@@ -197,6 +226,25 @@ describe('Exchange wrappers', () => {
});
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),
@@ -397,6 +445,26 @@ describe('Exchange wrappers', () => {
});
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;
@@ -446,6 +514,26 @@ describe('Exchange wrappers', () => {
});
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;
@@ -512,6 +600,25 @@ describe('Exchange wrappers', () => {
});
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;
@@ -625,6 +732,28 @@ describe('Exchange wrappers', () => {
});
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),
@@ -717,6 +846,27 @@ describe('Exchange wrappers', () => {
});
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),
@@ -843,6 +993,28 @@ describe('Exchange wrappers', () => {
});
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),
@@ -933,6 +1105,27 @@ describe('Exchange wrappers', () => {
});
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),
diff --git a/packages/contracts/test/utils/artifacts.ts b/packages/contracts/test/utils/artifacts.ts
index 2f6fcef71..5ddb5cc7f 100644
--- a/packages/contracts/test/utils/artifacts.ts
+++ b/packages/contracts/test/utils/artifacts.ts
@@ -16,6 +16,7 @@ import * as MixinAuthorizable from '../../artifacts/MixinAuthorizable.json';
import * as MultiSigWallet from '../../artifacts/MultiSigWallet.json';
import * as MultiSigWalletWithTimeLock from '../../artifacts/MultiSigWalletWithTimeLock.json';
import * as OrderValidator from '../../artifacts/OrderValidator.json';
+import * as ReentrantERC20Token from '../../artifacts/ReentrantERC20Token.json';
import * as TestAssetProxyDispatcher from '../../artifacts/TestAssetProxyDispatcher.json';
import * as TestAssetProxyOwner from '../../artifacts/TestAssetProxyOwner.json';
import * as TestConstants from '../../artifacts/TestConstants.json';
@@ -49,6 +50,7 @@ export const artifacts = {
MultiSigWallet: (MultiSigWallet as any) as ContractArtifact,
MultiSigWalletWithTimeLock: (MultiSigWalletWithTimeLock as any) as ContractArtifact,
OrderValidator: (OrderValidator as any) as ContractArtifact,
+ ReentrantERC20Token: (ReentrantERC20Token as any) as ContractArtifact,
TestAssetProxyOwner: (TestAssetProxyOwner as any) as ContractArtifact,
TestAssetProxyDispatcher: (TestAssetProxyDispatcher as any) as ContractArtifact,
TestConstants: (TestConstants as any) as ContractArtifact,
diff --git a/packages/contracts/test/utils/constants.ts b/packages/contracts/test/utils/constants.ts
index 65eaee398..ee4378d2e 100644
--- a/packages/contracts/test/utils/constants.ts
+++ b/packages/contracts/test/utils/constants.ts
@@ -51,4 +51,16 @@ export const constants = {
WORD_LENGTH: 32,
ZERO_AMOUNT: new BigNumber(0),
PERCENTAGE_DENOMINATOR: new BigNumber(10).pow(18),
+ FUNCTIONS_WITH_MUTEX: [
+ 'FILL_ORDER',
+ 'FILL_OR_KILL_ORDER',
+ 'BATCH_FILL_ORDERS',
+ 'BATCH_FILL_OR_KILL_ORDERS',
+ 'MARKET_BUY_ORDERS',
+ 'MARKET_SELL_ORDERS',
+ 'MATCH_ORDERS',
+ 'CANCEL_ORDER',
+ 'CANCEL_ORDERS_UP_TO',
+ 'SET_SIGNATURE_VALIDATOR_APPROVAL',
+ ],
};
diff --git a/packages/contracts/test/utils/fill_order_combinatorial_utils.ts b/packages/contracts/test/utils/fill_order_combinatorial_utils.ts
index a9318571c..92d0f4003 100644
--- a/packages/contracts/test/utils/fill_order_combinatorial_utils.ts
+++ b/packages/contracts/test/utils/fill_order_combinatorial_utils.ts
@@ -467,17 +467,17 @@ export class FillOrderCombinatorialUtils {
? remainingTakerAmountToFill
: alreadyFilledTakerAmount.add(takerAssetFillAmount);
- const expFilledMakerAmount = orderUtils.getPartialAmount(
+ const expFilledMakerAmount = orderUtils.getPartialAmountFloor(
expFilledTakerAmount,
signedOrder.takerAssetAmount,
signedOrder.makerAssetAmount,
);
- const expMakerFeePaid = orderUtils.getPartialAmount(
+ const expMakerFeePaid = orderUtils.getPartialAmountFloor(
expFilledTakerAmount,
signedOrder.takerAssetAmount,
signedOrder.makerFee,
);
- const expTakerFeePaid = orderUtils.getPartialAmount(
+ const expTakerFeePaid = orderUtils.getPartialAmountFloor(
expFilledTakerAmount,
signedOrder.takerAssetAmount,
signedOrder.takerFee,
@@ -668,7 +668,7 @@ export class FillOrderCombinatorialUtils {
signedOrder: SignedOrder,
takerAssetFillAmount: BigNumber,
): Promise<void> {
- const makerAssetFillAmount = orderUtils.getPartialAmount(
+ const makerAssetFillAmount = orderUtils.getPartialAmountFloor(
takerAssetFillAmount,
signedOrder.takerAssetAmount,
signedOrder.makerAssetAmount,
@@ -705,7 +705,7 @@ export class FillOrderCombinatorialUtils {
);
}
- const makerFee = orderUtils.getPartialAmount(
+ const makerFee = orderUtils.getPartialAmountFloor(
takerAssetFillAmount,
signedOrder.takerAssetAmount,
signedOrder.makerFee,
@@ -829,7 +829,7 @@ export class FillOrderCombinatorialUtils {
);
}
- const takerFee = orderUtils.getPartialAmount(
+ const takerFee = orderUtils.getPartialAmountFloor(
takerAssetFillAmount,
signedOrder.takerAssetAmount,
signedOrder.takerFee,
diff --git a/packages/contracts/test/utils/order_utils.ts b/packages/contracts/test/utils/order_utils.ts
index 019f6e74b..444e27c44 100644
--- a/packages/contracts/test/utils/order_utils.ts
+++ b/packages/contracts/test/utils/order_utils.ts
@@ -5,7 +5,7 @@ import { constants } from './constants';
import { CancelOrder, MatchOrder } from './types';
export const orderUtils = {
- getPartialAmount(numerator: BigNumber, denominator: BigNumber, target: BigNumber): BigNumber {
+ getPartialAmountFloor(numerator: BigNumber, denominator: BigNumber, target: BigNumber): BigNumber {
const partialAmount = numerator
.mul(target)
.div(denominator)
diff --git a/packages/order-utils/src/order_state_utils.ts b/packages/order-utils/src/order_state_utils.ts
index a0e24acf0..8398776aa 100644
--- a/packages/order-utils/src/order_state_utils.ts
+++ b/packages/order-utils/src/order_state_utils.ts
@@ -81,7 +81,7 @@ export class OrderStateUtils {
const remainingTakerAssetAmount = signedOrder.takerAssetAmount.minus(
sidedOrderRelevantState.filledTakerAssetAmount,
);
- const isRoundingError = OrderValidationUtils.isRoundingError(
+ const isRoundingError = OrderValidationUtils.isRoundingErrorFloor(
remainingTakerAssetAmount,
signedOrder.takerAssetAmount,
signedOrder.makerAssetAmount,
@@ -191,7 +191,7 @@ export class OrderStateUtils {
);
const remainingFillableTakerAssetAmountGivenMakersStatus = signedOrder.makerAssetAmount.eq(0)
? new BigNumber(0)
- : utils.getPartialAmount(
+ : utils.getPartialAmountFloor(
orderRelevantMakerState.remainingFillableAssetAmount,
signedOrder.makerAssetAmount,
signedOrder.takerAssetAmount,
diff --git a/packages/order-utils/src/order_validation_utils.ts b/packages/order-utils/src/order_validation_utils.ts
index 972e6f6d6..8227fb07c 100644
--- a/packages/order-utils/src/order_validation_utils.ts
+++ b/packages/order-utils/src/order_validation_utils.ts
@@ -24,7 +24,7 @@ export class OrderValidationUtils {
* @param denominator Denominator value. When used to check an order, pass in `order.takerAssetAmount`
* @param target Target value. When used to check an order, pass in `order.makerAssetAmount`
*/
- public static isRoundingError(numerator: BigNumber, denominator: BigNumber, target: BigNumber): boolean {
+ public static isRoundingErrorFloor(numerator: BigNumber, denominator: BigNumber, target: BigNumber): boolean {
// Solidity's mulmod() in JS
// Source: https://solidity.readthedocs.io/en/latest/units-and-global-variables.html#mathematical-and-cryptographic-functions
if (denominator.eq(0)) {
@@ -58,7 +58,7 @@ export class OrderValidationUtils {
zrxAssetData: string,
): Promise<void> {
try {
- const fillMakerTokenAmount = utils.getPartialAmount(
+ const fillMakerTokenAmount = utils.getPartialAmountFloor(
fillTakerAssetAmount,
signedOrder.takerAssetAmount,
signedOrder.makerAssetAmount,
@@ -79,7 +79,7 @@ export class OrderValidationUtils {
TradeSide.Taker,
TransferType.Trade,
);
- const makerFeeAmount = utils.getPartialAmount(
+ const makerFeeAmount = utils.getPartialAmountFloor(
fillTakerAssetAmount,
signedOrder.takerAssetAmount,
signedOrder.makerFee,
@@ -92,7 +92,7 @@ export class OrderValidationUtils {
TradeSide.Maker,
TransferType.Fee,
);
- const takerFeeAmount = utils.getPartialAmount(
+ const takerFeeAmount = utils.getPartialAmountFloor(
fillTakerAssetAmount,
signedOrder.takerAssetAmount,
signedOrder.takerFee,
@@ -218,7 +218,7 @@ export class OrderValidationUtils {
zrxAssetData,
);
- const wouldRoundingErrorOccur = OrderValidationUtils.isRoundingError(
+ const wouldRoundingErrorOccur = OrderValidationUtils.isRoundingErrorFloor(
desiredFillTakerTokenAmount,
signedOrder.takerAssetAmount,
signedOrder.makerAssetAmount,
diff --git a/packages/order-utils/src/utils.ts b/packages/order-utils/src/utils.ts
index 7aaaf0609..0ff05e8ed 100644
--- a/packages/order-utils/src/utils.ts
+++ b/packages/order-utils/src/utils.ts
@@ -12,7 +12,7 @@ export const utils = {
const milisecondsInSecond = 1000;
return new BigNumber(Date.now() / milisecondsInSecond).round();
},
- getPartialAmount(numerator: BigNumber, denominator: BigNumber, target: BigNumber): BigNumber {
+ getPartialAmountFloor(numerator: BigNumber, denominator: BigNumber, target: BigNumber): BigNumber {
const fillMakerTokenAmount = numerator
.mul(target)
.div(denominator)
diff --git a/packages/order-utils/test/order_validation_utils_test.ts b/packages/order-utils/test/order_validation_utils_test.ts
index d3ff867d7..d3133c0a6 100644
--- a/packages/order-utils/test/order_validation_utils_test.ts
+++ b/packages/order-utils/test/order_validation_utils_test.ts
@@ -16,7 +16,7 @@ describe('OrderValidationUtils', () => {
const denominator = new BigNumber(999);
const target = new BigNumber(50);
// rounding error = ((20*50/999) - floor(20*50/999)) / (20*50/999) = 0.1%
- const isRoundingError = OrderValidationUtils.isRoundingError(numerator, denominator, target);
+ const isRoundingError = OrderValidationUtils.isRoundingErrorFloor(numerator, denominator, target);
expect(isRoundingError).to.be.false();
});
@@ -25,7 +25,7 @@ describe('OrderValidationUtils', () => {
const denominator = new BigNumber(9991);
const target = new BigNumber(500);
// rounding error = ((20*500/9991) - floor(20*500/9991)) / (20*500/9991) = 0.09%
- const isRoundingError = OrderValidationUtils.isRoundingError(numerator, denominator, target);
+ const isRoundingError = OrderValidationUtils.isRoundingErrorFloor(numerator, denominator, target);
expect(isRoundingError).to.be.false();
});
@@ -34,7 +34,7 @@ describe('OrderValidationUtils', () => {
const denominator = new BigNumber(9989);
const target = new BigNumber(500);
// rounding error = ((20*500/9989) - floor(20*500/9989)) / (20*500/9989) = 0.011%
- const isRoundingError = OrderValidationUtils.isRoundingError(numerator, denominator, target);
+ const isRoundingError = OrderValidationUtils.isRoundingErrorFloor(numerator, denominator, target);
expect(isRoundingError).to.be.true();
});
@@ -43,7 +43,7 @@ describe('OrderValidationUtils', () => {
const denominator = new BigNumber(7);
const target = new BigNumber(10);
// rounding error = ((3*10/7) - floor(3*10/7)) / (3*10/7) = 6.67%
- const isRoundingError = OrderValidationUtils.isRoundingError(numerator, denominator, target);
+ const isRoundingError = OrderValidationUtils.isRoundingErrorFloor(numerator, denominator, target);
expect(isRoundingError).to.be.true();
});
@@ -52,7 +52,7 @@ describe('OrderValidationUtils', () => {
const denominator = new BigNumber(2);
const target = new BigNumber(10);
- const isRoundingError = OrderValidationUtils.isRoundingError(numerator, denominator, target);
+ const isRoundingError = OrderValidationUtils.isRoundingErrorFloor(numerator, denominator, target);
expect(isRoundingError).to.be.false();
});
@@ -63,7 +63,7 @@ describe('OrderValidationUtils', () => {
const target = new BigNumber(105762562);
// rounding error = ((76564*105762562/676373677) - floor(76564*105762562/676373677)) /
// (76564*105762562/676373677) = 0.0007%
- const isRoundingError = OrderValidationUtils.isRoundingError(numerator, denominator, target);
+ const isRoundingError = OrderValidationUtils.isRoundingErrorFloor(numerator, denominator, target);
expect(isRoundingError).to.be.false();
});
});
diff --git a/packages/types/src/index.ts b/packages/types/src/index.ts
index 5576a6678..d8bffccf9 100644
--- a/packages/types/src/index.ts
+++ b/packages/types/src/index.ts
@@ -173,6 +173,7 @@ export enum RevertReason {
InvalidSender = 'INVALID_SENDER',
InvalidOrderSignature = 'INVALID_ORDER_SIGNATURE',
InvalidTakerAmount = 'INVALID_TAKER_AMOUNT',
+ DivisionByZero = 'DIVISION_BY_ZERO',
RoundingError = 'ROUNDING_ERROR',
InvalidSignature = 'INVALID_SIGNATURE',
SignatureIllegal = 'SIGNATURE_ILLEGAL',