diff options
Diffstat (limited to 'src/contract_wrappers')
| -rw-r--r-- | src/contract_wrappers/exchange_wrapper.ts | 206 | ||||
| -rw-r--r-- | src/contract_wrappers/proxy_wrapper.ts | 33 |
2 files changed, 178 insertions, 61 deletions
diff --git a/src/contract_wrappers/exchange_wrapper.ts b/src/contract_wrappers/exchange_wrapper.ts index 7ee7a04ee..2d46b99de 100644 --- a/src/contract_wrappers/exchange_wrapper.ts +++ b/src/contract_wrappers/exchange_wrapper.ts @@ -8,6 +8,7 @@ import { ExchangeContract, ExchangeContractErrCodes, ExchangeContractErrs, + ZeroExError, OrderValues, OrderAddresses, Order, @@ -28,11 +29,14 @@ import { LogCancelContractEventArgs, EventCallback, ContractEventArg, + ExchangeContractByAddress, + ContractArtifact, } from '../types'; import {assert} from '../utils/assert'; import {utils} from '../utils/utils'; import {ContractWrapper} from './contract_wrapper'; -import * as ExchangeArtifacts from '../artifacts/Exchange.json'; +import {ProxyWrapper} from './proxy_wrapper'; +import {ExchangeArtifactsByName} from '../exchange_artifacts_by_name'; import {ecSignatureSchema} from '../schemas/ec_signature_schema'; import {signedOrdersSchema} from '../schemas/signed_orders_schema'; import {orderFillRequestsSchema} from '../schemas/order_fill_requests_schema'; @@ -56,9 +60,10 @@ export class ExchangeWrapper extends ContractWrapper { [ExchangeContractErrCodes.ERROR_FILL_TRUNCATION]: ExchangeContractErrs.ORDER_FILL_ROUNDING_ERROR, [ExchangeContractErrCodes.ERROR_FILL_BALANCE_ALLOWANCE]: ExchangeContractErrs.FILL_BALANCE_ALLOWANCE_ERROR, }; - private _exchangeContractIfExists?: ExchangeContract; + private _exchangeContractByAddress: ExchangeContractByAddress; private _exchangeLogEventEmitters: ContractEventEmitter[]; private _tokenWrapper: TokenWrapper; + private _proxyWrapper: ProxyWrapper; private static _getOrderAddressesAndValues(order: Order): [OrderAddresses, OrderValues] { const orderAddresses: OrderAddresses = [ order.maker, @@ -77,27 +82,31 @@ export class ExchangeWrapper extends ContractWrapper { ]; return [orderAddresses, orderValues]; } - constructor(web3Wrapper: Web3Wrapper, tokenWrapper: TokenWrapper) { + constructor(web3Wrapper: Web3Wrapper, tokenWrapper: TokenWrapper, proxyWrapper: ProxyWrapper) { super(web3Wrapper); this._tokenWrapper = tokenWrapper; + this._proxyWrapper = proxyWrapper; this._exchangeLogEventEmitters = []; + this._exchangeContractByAddress = {}; } - public async invalidateContractInstanceAsync(): Promise<void> { + public async invalidateContractInstancesAsync(): Promise<void> { await this.stopWatchingAllEventsAsync(); - delete this._exchangeContractIfExists; + this._exchangeContractByAddress = {}; } /** * Returns the unavailable takerAmount of an order. Unavailable amount is defined as the total * amount that has been filled or cancelled. The remaining takerAmount can be calculated by * subtracting the unavailable amount from the total order takerAmount. - * @param orderHash The hex encoded orderHash for which you would like to retrieve the - * unavailable takerAmount. + * @param orderHash The hex encoded orderHash for which you would like to retrieve the + * unavailable takerAmount. + * @param exchangeContractAddress The hex encoded address of the Exchange contract to use. * @return The amount of the order (in taker tokens) that has either been filled or canceled. */ - public async getUnavailableTakerAmountAsync(orderHash: string): Promise<BigNumber.BigNumber> { + public async getUnavailableTakerAmountAsync(orderHash: string, + exchangeContractAddress: string): Promise<BigNumber.BigNumber> { assert.isValidOrderHash('orderHash', orderHash); - const exchangeContract = await this._getExchangeContractAsync(); + const exchangeContract = await this._getExchangeContractAsync(exchangeContractAddress); let unavailableAmountInBaseUnits = await exchangeContract.getUnavailableValueT.call(orderHash); // Wrap BigNumbers returned from web3 with our own (later) version of BigNumber unavailableAmountInBaseUnits = new BigNumber(unavailableAmountInBaseUnits); @@ -106,12 +115,14 @@ export class ExchangeWrapper extends ContractWrapper { /** * Retrieve the takerAmount of an order that has already been filled. * @param orderHash The hex encoded orderHash for which you would like to retrieve the filled takerAmount. + * @param exchangeContractAddress The hex encoded address of the Exchange contract to use. * @return The amount of the order (in taker tokens) that has already been filled. */ - public async getFilledTakerAmountAsync(orderHash: string): Promise<BigNumber.BigNumber> { + public async getFilledTakerAmountAsync(orderHash: string, + exchangeContractAddress: string): Promise<BigNumber.BigNumber> { assert.isValidOrderHash('orderHash', orderHash); - const exchangeContract = await this._getExchangeContractAsync(); + const exchangeContract = await this._getExchangeContractAsync(exchangeContractAddress); let fillAmountInBaseUnits = await exchangeContract.filled.call(orderHash); // Wrap BigNumbers returned from web3 with our own (later) version of BigNumber fillAmountInBaseUnits = new BigNumber(fillAmountInBaseUnits); @@ -121,12 +132,14 @@ export class ExchangeWrapper extends ContractWrapper { * Retrieve the takerAmount of an order that has been cancelled. * @param orderHash The hex encoded orderHash for which you would like to retrieve the * cancelled takerAmount. + * @param exchangeContractAddress The hex encoded address of the Exchange contract to use. * @return The amount of the order (in taker tokens) that has been cancelled. */ - public async getCanceledTakerAmountAsync(orderHash: string): Promise<BigNumber.BigNumber> { + public async getCanceledTakerAmountAsync(orderHash: string, + exchangeContractAddress: string): Promise<BigNumber.BigNumber> { assert.isValidOrderHash('orderHash', orderHash); - const exchangeContract = await this._getExchangeContractAsync(); + const exchangeContract = await this._getExchangeContractAsync(exchangeContractAddress); let cancelledAmountInBaseUnits = await exchangeContract.cancelled.call(orderHash); // Wrap BigNumbers returned from web3 with our own (later) version of BigNumber cancelledAmountInBaseUnits = new BigNumber(cancelledAmountInBaseUnits); @@ -155,7 +168,7 @@ export class ExchangeWrapper extends ContractWrapper { assert.isBoolean('shouldCheckTransfer', shouldCheckTransfer); await assert.isSenderAddressAsync('takerAddress', takerAddress, this._web3Wrapper); - const exchangeInstance = await this._getExchangeContractAsync(); + const exchangeInstance = await this._getExchangeContractAsync(signedOrder.exchangeContractAddress); await this._validateFillOrderAndThrowIfInvalidAsync(signedOrder, takerTokenFillAmount, takerAddress); const [orderAddresses, orderValues] = ExchangeWrapper._getOrderAddressesAndValues(signedOrder); @@ -208,12 +221,15 @@ export class ExchangeWrapper extends ContractWrapper { @decorators.contractCallErrorHandler public async fillOrdersUpToAsync(signedOrders: SignedOrder[], takerTokenFillAmount: BigNumber.BigNumber, shouldCheckTransfer: boolean, takerAddress: string): Promise<BigNumber.BigNumber> { + assert.doesConformToSchema('signedOrders', signedOrders, signedOrdersSchema); const takerTokenAddresses = _.map(signedOrders, signedOrder => signedOrder.takerTokenAddress); assert.hasAtMostOneUniqueValue(takerTokenAddresses, - ExchangeContractErrs.MULTIPLE_TAKER_TOKENS_IN_FILL_UP_TO_DISALLOWED); + ExchangeContractErrs.MULTIPLE_TAKER_TOKENS_IN_FILL_UP_TO_DISALLOWED); + const exchangeContractAddresses = _.map(signedOrders, signedOrder => signedOrder.exchangeContractAddress); + assert.hasAtMostOneUniqueValue(exchangeContractAddresses, + ExchangeContractErrs.BATCH_ORDERS_MUST_HAVE_SAME_EXCHANGE_ADDRESS); assert.isBigNumber('takerTokenFillAmount', takerTokenFillAmount); assert.isBoolean('shouldCheckTransfer', shouldCheckTransfer); - assert.doesConformToSchema('signedOrders', signedOrders, signedOrdersSchema); await assert.isSenderAddressAsync('takerAddress', takerAddress, this._web3Wrapper); for (const signedOrder of signedOrders) { await this._validateFillOrderAndThrowIfInvalidAsync( @@ -236,7 +252,7 @@ export class ExchangeWrapper extends ContractWrapper { orderAddressesValuesAndSignatureArray, ); - const exchangeInstance = await this._getExchangeContractAsync(); + const exchangeInstance = await this._getExchangeContractAsync(exchangeContractAddresses[0]); const gas = await exchangeInstance.fillUpTo.estimateGas( orderAddressesArray, orderValuesArray, @@ -285,9 +301,15 @@ export class ExchangeWrapper extends ContractWrapper { @decorators.contractCallErrorHandler public async batchFillOrderAsync(orderFillRequests: OrderFillRequest[], shouldCheckTransfer: boolean, takerAddress: string): Promise<void> { + assert.doesConformToSchema('orderFillRequests', orderFillRequests, orderFillRequestsSchema); + const exchangeContractAddresses = _.map( + orderFillRequests, + orderFillRequest => orderFillRequest.signedOrder.exchangeContractAddress, + ); + assert.hasAtMostOneUniqueValue(exchangeContractAddresses, + ExchangeContractErrs.BATCH_ORDERS_MUST_HAVE_SAME_EXCHANGE_ADDRESS); assert.isBoolean('shouldCheckTransfer', shouldCheckTransfer); await assert.isSenderAddressAsync('takerAddress', takerAddress, this._web3Wrapper); - assert.doesConformToSchema('orderFillRequests', orderFillRequests, orderFillRequestsSchema); for (const orderFillRequest of orderFillRequests) { await this._validateFillOrderAndThrowIfInvalidAsync( orderFillRequest.signedOrder, orderFillRequest.takerTokenFillAmount, takerAddress); @@ -310,7 +332,7 @@ export class ExchangeWrapper extends ContractWrapper { orderAddressesValuesAmountsAndSignatureArray, ); - const exchangeInstance = await this._getExchangeContractAsync(); + const exchangeInstance = await this._getExchangeContractAsync(exchangeContractAddresses[0]); const gas = await exchangeInstance.batchFill.estimateGas( orderAddressesArray, orderValuesArray, @@ -354,7 +376,7 @@ export class ExchangeWrapper extends ContractWrapper { assert.isBigNumber('takerTokenFillAmount', takerTokenFillAmount); await assert.isSenderAddressAsync('takerAddress', takerAddress, this._web3Wrapper); - const exchangeInstance = await this._getExchangeContractAsync(); + const exchangeInstance = await this._getExchangeContractAsync(signedOrder.exchangeContractAddress); await this._validateFillOrderAndThrowIfInvalidAsync(signedOrder, takerTokenFillAmount, takerAddress); await this._validateFillOrKillOrderAndThrowIfInvalidAsync(signedOrder, exchangeInstance.address, @@ -397,9 +419,18 @@ export class ExchangeWrapper extends ContractWrapper { @decorators.contractCallErrorHandler public async batchFillOrKillAsync(orderFillOrKillRequests: OrderFillOrKillRequest[], takerAddress: string): Promise<void> { - await assert.isSenderAddressAsync('takerAddress', takerAddress, this._web3Wrapper); assert.doesConformToSchema('orderFillOrKillRequests', orderFillOrKillRequests, orderFillOrKillRequestsSchema); - const exchangeInstance = await this._getExchangeContractAsync(); + const exchangeContractAddresses = _.map( + orderFillOrKillRequests, + orderFillOrKillRequest => orderFillOrKillRequest.signedOrder.exchangeContractAddress, + ); + assert.hasAtMostOneUniqueValue(exchangeContractAddresses, + ExchangeContractErrs.BATCH_ORDERS_MUST_HAVE_SAME_EXCHANGE_ADDRESS); + await assert.isSenderAddressAsync('takerAddress', takerAddress, this._web3Wrapper); + if (_.isEmpty(orderFillOrKillRequests)) { + return; // no-op + } + const exchangeInstance = await this._getExchangeContractAsync(exchangeContractAddresses[0]); for (const request of orderFillOrKillRequests) { await this._validateFillOrKillOrderAndThrowIfInvalidAsync(request.signedOrder, exchangeInstance.address, request.fillTakerAmount); @@ -458,7 +489,7 @@ export class ExchangeWrapper extends ContractWrapper { assert.isBigNumber('takerTokenCancelAmount', takerTokenCancelAmount); await assert.isSenderAddressAsync('order.maker', order.maker, this._web3Wrapper); - const exchangeInstance = await this._getExchangeContractAsync(); + const exchangeInstance = await this._getExchangeContractAsync(order.exchangeContractAddress); await this._validateCancelOrderAndThrowIfInvalidAsync(order, takerTokenCancelAmount); const [orderAddresses, orderValues] = ExchangeWrapper._getOrderAddressesAndValues(order); @@ -492,12 +523,18 @@ export class ExchangeWrapper extends ContractWrapper { */ @decorators.contractCallErrorHandler public async batchCancelOrderAsync(orderCancellationRequests: OrderCancellationRequest[]): Promise<void> { + assert.doesConformToSchema('orderCancellationRequests', orderCancellationRequests, + orderCancellationRequestsSchema); + const exchangeContractAddresses = _.map( + orderCancellationRequests, + orderCancellationRequest => orderCancellationRequest.order.exchangeContractAddress, + ); + assert.hasAtMostOneUniqueValue(exchangeContractAddresses, + ExchangeContractErrs.BATCH_ORDERS_MUST_HAVE_SAME_EXCHANGE_ADDRESS); const makers = _.map(orderCancellationRequests, cancellationRequest => cancellationRequest.order.maker); assert.hasAtMostOneUniqueValue(makers, ExchangeContractErrs.MULTIPLE_MAKERS_IN_SINGLE_CANCEL_BATCH_DISALLOWED); const maker = makers[0]; await assert.isSenderAddressAsync('maker', maker, this._web3Wrapper); - assert.doesConformToSchema('orderCancellationRequests', orderCancellationRequests, - orderCancellationRequestsSchema); for (const cancellationRequest of orderCancellationRequests) { await this._validateCancelOrderAndThrowIfInvalidAsync( cancellationRequest.order, cancellationRequest.takerTokenCancelAmount, @@ -506,7 +543,7 @@ export class ExchangeWrapper extends ContractWrapper { if (_.isEmpty(orderCancellationRequests)) { return; // no-op } - const exchangeInstance = await this._getExchangeContractAsync(); + const exchangeInstance = await this._getExchangeContractAsync(exchangeContractAddresses[0]); const orderAddressesValuesAndTakerTokenCancelAmounts = _.map(orderCancellationRequests, cancellationRequest => { return [ ...ExchangeWrapper._getOrderAddressesAndValues(cancellationRequest.order), @@ -537,16 +574,17 @@ export class ExchangeWrapper extends ContractWrapper { } /** * Subscribe to an event type emitted by the Exchange smart contract - * @param eventName The exchange contract event you would like to subscribe to. - * @param subscriptionOpts Subscriptions options that let you configure the subscription. - * @param indexFilterValues An object where the keys are indexed args returned by the event and - * the value is the value you are interested in. E.g `{maker: aUserAddressHex}` + * @param eventName The exchange contract event you would like to subscribe to. + * @param subscriptionOpts Subscriptions options that let you configure the subscription. + * @param indexFilterValues An object where the keys are indexed args returned by the event and + * the value is the value you are interested in. E.g `{maker: aUserAddressHex}` + * @param exchangeContractAddress The hex encoded address of the Exchange contract to use. * @return ContractEventEmitter object */ public async subscribeAsync(eventName: ExchangeEvents, subscriptionOpts: SubscriptionOpts, - indexFilterValues: IndexedFilterValues): + indexFilterValues: IndexedFilterValues, exchangeContractAddress: string): Promise<ContractEventEmitter> { - const exchangeContract = await this._getExchangeContractAsync(); + const exchangeContract = await this._getExchangeContractAsync(exchangeContractAddress); let createLogEvent: CreateContractEvent; switch (eventName) { case ExchangeEvents.LogFill: @@ -568,13 +606,41 @@ export class ExchangeWrapper extends ContractWrapper { return eventEmitter; } /** - * Returns the ethereum address of the current exchange contract + * Returns the ethereum addresses of all available exchange contracts * on the network that the provided web3 instance is connected to - * @return The ethereum address of the current exchange contract. + * @return The ethereum addresses of all available exchange contracts. */ - public async getContractAddressAsync(): Promise<string> { - const exchangeContract = await this._getExchangeContractAsync(); - return exchangeContract.address; + public async getAvailableContractAddressesAsync(): Promise<string[]> { + const networkId = await this._web3Wrapper.getNetworkIdIfExistsAsync(); + if (_.isUndefined(networkId)) { + return []; + } else { + const exchangeArtifacts = _.values(ExchangeArtifactsByName); + const networkSpecificExchangeArtifacts = _.compact(_.map( + exchangeArtifacts, exchangeArtifact => exchangeArtifact.networks[networkId])); + const exchangeAddresses = _.map( + networkSpecificExchangeArtifacts, + networkSpecificExchangeArtifact => networkSpecificExchangeArtifact.address, + ); + return exchangeAddresses; + } + } + /** + * Returns the ethereum addresses of all available exchange contracts + * on the network that the provided web3 instance is connected to + * that are currently authorized on the Proxy contract + * @return The ethereum addresses of all available and authorized exchange contract. + */ + public async getProxyAuthorizedContractAddressesAsync(): Promise<string[]> { + const exchangeContractAddresses = await this.getAvailableContractAddressesAsync(); + const proxyAuthorizedExchangeContractAddresses = []; + for (const exchangeContractAddress of exchangeContractAddresses) { + const isAuthorized = await this._isExchangeContractAddressProxyAuthorizedAsync(exchangeContractAddress); + if (isAuthorized) { + proxyAuthorizedExchangeContractAddresses.push(exchangeContractAddress); + } + } + return proxyAuthorizedExchangeContractAddresses; } /** * Stops watching for all exchange events @@ -585,6 +651,10 @@ export class ExchangeWrapper extends ContractWrapper { await Promise.all(stopWatchingPromises); this._exchangeLogEventEmitters = []; } + private async _isExchangeContractAddressProxyAuthorizedAsync(exchangeContractAddress: string): Promise<boolean> { + const isAuthorized = await this._proxyWrapper.isAuthorizedAsync(exchangeContractAddress); + return isAuthorized; + } private _wrapEventEmitter(event: ContractEventObj): ContractEventEmitter { const watch = (eventCallback: EventCallback) => { const bignumberWrappingEventCallback = this._wrapEventCallback(eventCallback); @@ -617,12 +687,13 @@ export class ExchangeWrapper extends ContractWrapper { return bignumberWrappingEventCallback; } private async _isValidSignatureUsingContractCallAsync(dataHex: string, ecSignature: ECSignature, - signerAddressHex: string): Promise<boolean> { + signerAddressHex: string, + exchangeContractAddress: string): Promise<boolean> { assert.isHexString('dataHex', dataHex); assert.doesConformToSchema('ecSignature', ecSignature, ecSignatureSchema); assert.isETHAddressHex('signerAddressHex', signerAddressHex); - const exchangeInstance = await this._getExchangeContractAsync(); + const exchangeInstance = await this._getExchangeContractAsync(exchangeContractAddress); const isValidSignature = await exchangeInstance.isValidSignature.call( signerAddressHex, @@ -633,13 +704,8 @@ export class ExchangeWrapper extends ContractWrapper { ); return isValidSignature; } - private async _getOrderHashHexAsync(order: Order|SignedOrder): Promise<string> { - const exchangeInstance = await this._getExchangeContractAsync(); - const orderHashHex = utils.getOrderHashHex(order, exchangeInstance.address); - return orderHashHex; - } private async _getOrderHashHexUsingContractCallAsync(order: Order|SignedOrder): Promise<string> { - const exchangeInstance = await this._getExchangeContractAsync(); + const exchangeInstance = await this._getExchangeContractAsync(order.exchangeContractAddress); const [orderAddresses, orderValues] = ExchangeWrapper._getOrderAddressesAndValues(order); const orderHashHex = await exchangeInstance.getOrderHash.call(orderAddresses, orderValues); return orderHashHex; @@ -657,12 +723,13 @@ export class ExchangeWrapper extends ContractWrapper { if (signedOrder.expirationUnixTimestampSec.lessThan(currentUnixTimestampSec)) { throw new Error(ExchangeContractErrs.ORDER_FILL_EXPIRED); } - const zrxTokenAddress = await this._getZRXTokenAddressAsync(); + const zrxTokenAddress = await this._getZRXTokenAddressAsync(signedOrder.exchangeContractAddress); await this._validateFillOrderBalancesAndAllowancesAndThrowIfInvalidAsync(signedOrder, fillTakerAmount, senderAddress, zrxTokenAddress); const wouldRoundingErrorOccur = await this._isRoundingErrorAsync( signedOrder.takerTokenAmount, fillTakerAmount, signedOrder.makerTokenAmount, + signedOrder.exchangeContractAddress, ); if (wouldRoundingErrorOccur) { throw new Error(ExchangeContractErrs.ORDER_FILL_ROUNDING_ERROR); @@ -673,8 +740,8 @@ export class ExchangeWrapper extends ContractWrapper { if (takerTokenCancelAmount.eq(0)) { throw new Error(ExchangeContractErrs.ORDER_CANCEL_AMOUNT_ZERO); } - const orderHash = await this._getOrderHashHexAsync(order); - const unavailableAmount = await this.getUnavailableTakerAmountAsync(orderHash); + const orderHash = utils.getOrderHashHex(order); + const unavailableAmount = await this.getUnavailableTakerAmountAsync(orderHash, order.exchangeContractAddress); if (order.takerTokenAmount.minus(unavailableAmount).eq(0)) { throw new Error(ExchangeContractErrs.ORDER_ALREADY_CANCELLED_OR_FILLED); } @@ -684,11 +751,11 @@ export class ExchangeWrapper extends ContractWrapper { } } private async _validateFillOrKillOrderAndThrowIfInvalidAsync(signedOrder: SignedOrder, - exchangeAddress: string, + exchangeContractAddress: string, fillTakerAmount: BigNumber.BigNumber) { // Check that fillValue available >= fillTakerAmount - const orderHashHex = utils.getOrderHashHex(signedOrder, exchangeAddress); - const unavailableTakerAmount = await this.getUnavailableTakerAmountAsync(orderHashHex); + const orderHashHex = utils.getOrderHashHex(signedOrder); + const unavailableTakerAmount = await this.getUnavailableTakerAmountAsync(orderHashHex, exchangeContractAddress); const remainingTakerAmount = signedOrder.takerTokenAmount.minus(unavailableTakerAmount); if (remainingTakerAmount < fillTakerAmount) { throw new Error(ExchangeContractErrs.INSUFFICIENT_REMAINING_FILL_AMOUNT); @@ -765,24 +832,41 @@ export class ExchangeWrapper extends ContractWrapper { } private async _isRoundingErrorAsync(takerTokenAmount: BigNumber.BigNumber, fillTakerAmount: BigNumber.BigNumber, - makerTokenAmount: BigNumber.BigNumber): Promise<boolean> { + makerTokenAmount: BigNumber.BigNumber, + exchangeContractAddress: string): Promise<boolean> { await assert.isUserAddressAvailableAsync(this._web3Wrapper); - const exchangeInstance = await this._getExchangeContractAsync(); + const exchangeInstance = await this._getExchangeContractAsync(exchangeContractAddress); const isRoundingError = await exchangeInstance.isRoundingError.call( takerTokenAmount, fillTakerAmount, makerTokenAmount, ); return isRoundingError; } - private async _getExchangeContractAsync(): Promise<ExchangeContract> { - if (!_.isUndefined(this._exchangeContractIfExists)) { - return this._exchangeContractIfExists; + private async _getExchangeContractAsync(exchangeContractAddress: string): Promise<ExchangeContract> { + if (!_.isUndefined(this._exchangeContractByAddress[exchangeContractAddress])) { + return this._exchangeContractByAddress[exchangeContractAddress]; } + const ExchangeArtifacts = this._getExchangeArtifactsByAddressOrThrow(exchangeContractAddress); const contractInstance = await this._instantiateContractIfExistsAsync((ExchangeArtifacts as any)); - this._exchangeContractIfExists = contractInstance as ExchangeContract; - return this._exchangeContractIfExists; + this._exchangeContractByAddress[exchangeContractAddress] = contractInstance as ExchangeContract; + return this._exchangeContractByAddress[exchangeContractAddress]; + } + private _getExchangeArtifactsByAddressOrThrow(exchangeContractAddress: string): ContractArtifact { + const exchangeArtifacts = _.values<ContractArtifact>(ExchangeArtifactsByName); + for (const exchangeArtifact of exchangeArtifacts) { + const networkSpecificExchangeArtifactValues = _.values(exchangeArtifact.networks); + const exchangeAddressesInArtifact = _.map( + networkSpecificExchangeArtifactValues, + networkSpecificExchangeArtifact => networkSpecificExchangeArtifact.address, + ); + if (_.includes(exchangeAddressesInArtifact, exchangeContractAddress)) { + return exchangeArtifact; + } + } + throw new Error(ZeroExError.EXCHANGE_CONTRACT_DOES_NOT_EXIST); } - private async _getZRXTokenAddressAsync(): Promise<string> { - const exchangeInstance = await this._getExchangeContractAsync(); - return exchangeInstance.ZRX.call(); + private async _getZRXTokenAddressAsync(exchangeContractAddress: string): Promise<string> { + const exchangeInstance = await this._getExchangeContractAsync(exchangeContractAddress); + const ZRXtokenAddress = await exchangeInstance.ZRX.call(); + return ZRXtokenAddress; } } diff --git a/src/contract_wrappers/proxy_wrapper.ts b/src/contract_wrappers/proxy_wrapper.ts new file mode 100644 index 000000000..862bce131 --- /dev/null +++ b/src/contract_wrappers/proxy_wrapper.ts @@ -0,0 +1,33 @@ +import * as _ from 'lodash'; +import {Web3Wrapper} from '../web3_wrapper'; +import {ContractWrapper} from './contract_wrapper'; +import * as ProxyArtifacts from '../artifacts/Proxy.json'; +import {ProxyContract} from '../types'; + +/** + * This class includes the functionality related to interacting with the Proxy contract. + */ +export class ProxyWrapper extends ContractWrapper { + private _proxyContractIfExists?: ProxyContract; + public invalidateContractInstance(): void { + delete this._proxyContractIfExists; + } + /** + * Check if the Exchange contract address is authorized by the Proxy contract. + * @param exchangeContractAddress The hex encoded address of the Exchange contract to use. + * @return Whether the exchangeContractAddress is authorized. + */ + public async isAuthorizedAsync(exchangeContractAddress: string): Promise<boolean> { + const proxyContractInstance = await this._getProxyContractAsync(); + const isAuthorized = await proxyContractInstance.authorized.call(exchangeContractAddress); + return isAuthorized; + } + private async _getProxyContractAsync(): Promise<ProxyContract> { + if (!_.isUndefined(this._proxyContractIfExists)) { + return this._proxyContractIfExists; + } + const contractInstance = await this._instantiateContractIfExistsAsync((ProxyArtifacts as any)); + this._proxyContractIfExists = contractInstance as ProxyContract; + return this._proxyContractIfExists; + } +} |