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-rw-r--r--packages/contract-wrappers/src/contract_wrappers.ts2
-rw-r--r--packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts79
-rw-r--r--packages/contract-wrappers/src/fetchers/asset_balance_and_proxy_allowance_fetcher.ts77
-rw-r--r--packages/contract-wrappers/src/fetchers/order_filled_cancelled_fetcher.ts30
-rw-r--r--packages/contract-wrappers/src/index.ts6
5 files changed, 192 insertions, 2 deletions
diff --git a/packages/contract-wrappers/src/contract_wrappers.ts b/packages/contract-wrappers/src/contract_wrappers.ts
index 8ca0fc93c..4272cc943 100644
--- a/packages/contract-wrappers/src/contract_wrappers.ts
+++ b/packages/contract-wrappers/src/contract_wrappers.ts
@@ -111,6 +111,8 @@ export class ContractWrappers {
this.exchange = new ExchangeWrapper(
this._web3Wrapper,
config.networkId,
+ this.erc20Token,
+ this.erc721Token,
config.exchangeContractAddress,
config.zrxContractAddress,
blockPollingIntervalMs,
diff --git a/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts b/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts
index cfef0f107..dc9ffcbf7 100644
--- a/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts
+++ b/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts
@@ -1,12 +1,19 @@
import { schemas } from '@0xproject/json-schemas';
-import { assetDataUtils } from '@0xproject/order-utils';
+import {
+ assetDataUtils,
+ BalanceAndProxyAllowanceLazyStore,
+ ExchangeTransferSimulator,
+ OrderValidationUtils,
+} from '@0xproject/order-utils';
import { AssetProxyId, Order, SignedOrder } from '@0xproject/types';
import { BigNumber } from '@0xproject/utils';
import { Web3Wrapper } from '@0xproject/web3-wrapper';
-import { ContractAbi, LogWithDecodedArgs } from 'ethereum-types';
+import { BlockParamLiteral, ContractAbi, LogWithDecodedArgs } from 'ethereum-types';
import * as _ from 'lodash';
import { artifacts } from '../artifacts';
+import { AssetBalanceAndProxyAllowanceFetcher } from '../fetchers/asset_balance_and_proxy_allowance_fetcher';
+import { OrderFilledCancelledFetcher } from '../fetchers/order_filled_cancelled_fetcher';
import { methodOptsSchema } from '../schemas/method_opts_schema';
import { orderTxOptsSchema } from '../schemas/order_tx_opts_schema';
import { txOptsSchema } from '../schemas/tx_opts_schema';
@@ -17,13 +24,17 @@ import {
IndexedFilterValues,
MethodOpts,
OrderInfo,
+ OrderStatus,
OrderTransactionOpts,
+ ValidateOrderFillableOpts,
} from '../types';
import { assert } from '../utils/assert';
import { decorators } from '../utils/decorators';
import { TransactionEncoder } from '../utils/transaction_encoder';
import { ContractWrapper } from './contract_wrapper';
+import { ERC20TokenWrapper } from './erc20_token_wrapper';
+import { ERC721TokenWrapper } from './erc721_token_wrapper';
import { ExchangeContract, ExchangeEventArgs, ExchangeEvents } from './generated/exchange';
/**
@@ -33,6 +44,8 @@ import { ExchangeContract, ExchangeEventArgs, ExchangeEvents } from './generated
export class ExchangeWrapper extends ContractWrapper {
public abi: ContractAbi = artifacts.Exchange.compilerOutput.abi;
private _exchangeContractIfExists?: ExchangeContract;
+ private _erc721TokenWrapper: ERC721TokenWrapper;
+ private _erc20TokenWrapper: ERC20TokenWrapper;
private _contractAddressIfExists?: string;
private _zrxContractAddressIfExists?: string;
/**
@@ -48,11 +61,15 @@ export class ExchangeWrapper extends ContractWrapper {
constructor(
web3Wrapper: Web3Wrapper,
networkId: number,
+ erc20TokenWrapper: ERC20TokenWrapper,
+ erc721TokenWrapper: ERC721TokenWrapper,
contractAddressIfExists?: string,
zrxContractAddressIfExists?: string,
blockPollingIntervalMs?: number,
) {
super(web3Wrapper, networkId, blockPollingIntervalMs);
+ this._erc20TokenWrapper = erc20TokenWrapper;
+ this._erc721TokenWrapper = erc721TokenWrapper;
this._contractAddressIfExists = contractAddressIfExists;
this._zrxContractAddressIfExists = zrxContractAddressIfExists;
}
@@ -1085,6 +1102,64 @@ export class ExchangeWrapper extends ContractWrapper {
return logs;
}
/**
+ * Validate if the supplied order is fillable, and throw if it isn't
+ * @param signedOrder SignedOrder of interest
+ * @param opts ValidateOrderFillableOpts options (e.g expectedFillTakerTokenAmount.
+ * If it isn't supplied, we check if the order is fillable for a non-zero amount)
+ */
+ public async validateOrderFillableOrThrowAsync(
+ signedOrder: SignedOrder,
+ opts: ValidateOrderFillableOpts = {},
+ ): Promise<void> {
+ const balanceAllowanceFetcher = new AssetBalanceAndProxyAllowanceFetcher(
+ this._erc20TokenWrapper,
+ this._erc721TokenWrapper,
+ BlockParamLiteral.Latest,
+ );
+ const balanceAllowanceStore = new BalanceAndProxyAllowanceLazyStore(balanceAllowanceFetcher);
+ const exchangeTradeSimulator = new ExchangeTransferSimulator(balanceAllowanceStore);
+
+ const expectedFillTakerTokenAmountIfExists = opts.expectedFillTakerTokenAmount;
+ const filledCancelledFetcher = new OrderFilledCancelledFetcher(this, BlockParamLiteral.Latest);
+ const orderValidationUtils = new OrderValidationUtils(filledCancelledFetcher);
+ await orderValidationUtils.validateOrderFillableOrThrowAsync(
+ exchangeTradeSimulator,
+ signedOrder,
+ this.getZRXAssetData(),
+ expectedFillTakerTokenAmountIfExists,
+ );
+ }
+ /**
+ * Validate a call to FillOrder and throw if it wouldn't succeed
+ * @param signedOrder SignedOrder of interest
+ * @param fillTakerAssetAmount Amount we'd like to fill the order for
+ * @param takerAddress The taker of the order
+ */
+ public async validateFillOrderThrowIfInvalidAsync(
+ signedOrder: SignedOrder,
+ fillTakerAssetAmount: BigNumber,
+ takerAddress: string,
+ ): Promise<void> {
+ const balanceAllowanceFetcher = new AssetBalanceAndProxyAllowanceFetcher(
+ this._erc20TokenWrapper,
+ this._erc721TokenWrapper,
+ BlockParamLiteral.Latest,
+ );
+ const balanceAllowanceStore = new BalanceAndProxyAllowanceLazyStore(balanceAllowanceFetcher);
+ const exchangeTradeSimulator = new ExchangeTransferSimulator(balanceAllowanceStore);
+
+ const filledCancelledFetcher = new OrderFilledCancelledFetcher(this, BlockParamLiteral.Latest);
+ const orderValidationUtils = new OrderValidationUtils(filledCancelledFetcher);
+ await orderValidationUtils.validateFillOrderThrowIfInvalidAsync(
+ exchangeTradeSimulator,
+ this._web3Wrapper.getProvider(),
+ signedOrder,
+ fillTakerAssetAmount,
+ takerAddress,
+ this.getZRXAssetData(),
+ );
+ }
+ /**
* Retrieves the Ethereum address of the Exchange contract deployed on the network
* that the user-passed web3 provider is connected to.
* @returns The Ethereum address of the Exchange contract being used.
diff --git a/packages/contract-wrappers/src/fetchers/asset_balance_and_proxy_allowance_fetcher.ts b/packages/contract-wrappers/src/fetchers/asset_balance_and_proxy_allowance_fetcher.ts
new file mode 100644
index 000000000..023cd5ac3
--- /dev/null
+++ b/packages/contract-wrappers/src/fetchers/asset_balance_and_proxy_allowance_fetcher.ts
@@ -0,0 +1,77 @@
+// tslint:disable:no-unnecessary-type-assertion
+import { AbstractBalanceAndProxyAllowanceFetcher, assetDataUtils } from '@0xproject/order-utils';
+import { AssetProxyId, ERC20AssetData, ERC721AssetData } from '@0xproject/types';
+import { BigNumber } from '@0xproject/utils';
+import { BlockParamLiteral } from 'ethereum-types';
+
+import { ERC20TokenWrapper } from '../contract_wrappers/erc20_token_wrapper';
+import { ERC721TokenWrapper } from '../contract_wrappers/erc721_token_wrapper';
+
+export class AssetBalanceAndProxyAllowanceFetcher implements AbstractBalanceAndProxyAllowanceFetcher {
+ private readonly _erc20Token: ERC20TokenWrapper;
+ private readonly _erc721Token: ERC721TokenWrapper;
+ private readonly _stateLayer: BlockParamLiteral;
+ constructor(erc20Token: ERC20TokenWrapper, erc721Token: ERC721TokenWrapper, stateLayer: BlockParamLiteral) {
+ this._erc20Token = erc20Token;
+ this._erc721Token = erc721Token;
+ this._stateLayer = stateLayer;
+ }
+ public async getBalanceAsync(assetData: string, userAddress: string): Promise<BigNumber> {
+ const decodedAssetData = assetDataUtils.decodeAssetDataOrThrow(assetData);
+ if (decodedAssetData.assetProxyId === AssetProxyId.ERC20) {
+ const decodedERC20AssetData = decodedAssetData as ERC20AssetData;
+ const balance = await this._erc20Token.getBalanceAsync(decodedERC20AssetData.tokenAddress, userAddress, {
+ defaultBlock: this._stateLayer,
+ });
+ return balance;
+ } else {
+ const decodedERC721AssetData = decodedAssetData as ERC721AssetData;
+ const tokenOwner = await this._erc721Token.getOwnerOfAsync(
+ decodedERC721AssetData.tokenAddress,
+ decodedERC721AssetData.tokenId,
+ {
+ defaultBlock: this._stateLayer,
+ },
+ );
+ const balance = tokenOwner === userAddress ? new BigNumber(1) : new BigNumber(0);
+ return balance;
+ }
+ }
+ public async getProxyAllowanceAsync(assetData: string, userAddress: string): Promise<BigNumber> {
+ const decodedAssetData = assetDataUtils.decodeAssetDataOrThrow(assetData);
+ if (decodedAssetData.assetProxyId === AssetProxyId.ERC20) {
+ const decodedERC20AssetData = decodedAssetData as ERC20AssetData;
+ const proxyAllowance = await this._erc20Token.getProxyAllowanceAsync(
+ decodedERC20AssetData.tokenAddress,
+ userAddress,
+ {
+ defaultBlock: this._stateLayer,
+ },
+ );
+ return proxyAllowance;
+ } else {
+ const decodedERC721AssetData = decodedAssetData as ERC721AssetData;
+
+ const isApprovedForAll = await this._erc721Token.isProxyApprovedForAllAsync(
+ decodedERC721AssetData.tokenAddress,
+ userAddress,
+ {
+ defaultBlock: this._stateLayer,
+ },
+ );
+ if (isApprovedForAll) {
+ return new BigNumber(this._erc20Token.UNLIMITED_ALLOWANCE_IN_BASE_UNITS);
+ } else {
+ const isApproved = await this._erc721Token.isProxyApprovedAsync(
+ decodedERC721AssetData.tokenAddress,
+ decodedERC721AssetData.tokenId,
+ {
+ defaultBlock: this._stateLayer,
+ },
+ );
+ const proxyAllowance = isApproved ? new BigNumber(1) : new BigNumber(0);
+ return proxyAllowance;
+ }
+ }
+ }
+}
diff --git a/packages/contract-wrappers/src/fetchers/order_filled_cancelled_fetcher.ts b/packages/contract-wrappers/src/fetchers/order_filled_cancelled_fetcher.ts
new file mode 100644
index 000000000..ba6f5fb5e
--- /dev/null
+++ b/packages/contract-wrappers/src/fetchers/order_filled_cancelled_fetcher.ts
@@ -0,0 +1,30 @@
+// tslint:disable:no-unnecessary-type-assertion
+import { AbstractOrderFilledCancelledFetcher } from '@0xproject/order-utils';
+import { BigNumber } from '@0xproject/utils';
+import { BlockParamLiteral } from 'ethereum-types';
+
+import { ERC20TokenWrapper } from '../contract_wrappers/erc20_token_wrapper';
+import { ExchangeWrapper } from '../contract_wrappers/exchange_wrapper';
+
+export class OrderFilledCancelledFetcher implements AbstractOrderFilledCancelledFetcher {
+ private readonly _exchange: ExchangeWrapper;
+ private readonly _stateLayer: BlockParamLiteral;
+ constructor(exchange: ExchangeWrapper, stateLayer: BlockParamLiteral) {
+ this._exchange = exchange;
+ this._stateLayer = stateLayer;
+ }
+ public async getFilledTakerAmountAsync(orderHash: string): Promise<BigNumber> {
+ const filledTakerAmount = this._exchange.getFilledTakerAssetAmountAsync(orderHash, {
+ defaultBlock: this._stateLayer,
+ });
+ return filledTakerAmount;
+ }
+ public async isOrderCancelledAsync(orderHash: string): Promise<boolean> {
+ const isCancelled = await this._exchange.isCancelledAsync(orderHash);
+ return isCancelled;
+ }
+ public getZRXAssetData(): string {
+ const zrxAssetData = this._exchange.getZRXAssetData();
+ return zrxAssetData;
+ }
+}
diff --git a/packages/contract-wrappers/src/index.ts b/packages/contract-wrappers/src/index.ts
index b66d8460e..2fcdd2ddb 100644
--- a/packages/contract-wrappers/src/index.ts
+++ b/packages/contract-wrappers/src/index.ts
@@ -25,6 +25,7 @@ export {
BalanceAndAllowance,
OrderAndTraderInfo,
TraderInfo,
+ ValidateOrderFillableOpts,
} from './types';
export { Order, SignedOrder, AssetProxyId } from '@0xproject/types';
@@ -85,3 +86,8 @@ export {
ExchangeEventArgs,
ExchangeEvents,
} from './contract_wrappers/generated/exchange';
+
+export { AbstractBalanceAndProxyAllowanceFetcher, AbstractOrderFilledCancelledFetcher } from '@0xproject/order-utils';
+
+export { AssetBalanceAndProxyAllowanceFetcher } from './fetchers/asset_balance_and_proxy_allowance_fetcher';
+export { OrderFilledCancelledFetcher } from './fetchers/order_filled_cancelled_fetcher';