diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/contract_wrappers/exchange_wrapper.ts | 111 | ||||
| -rw-r--r-- | src/types.ts | 11 |
2 files changed, 98 insertions, 24 deletions
diff --git a/src/contract_wrappers/exchange_wrapper.ts b/src/contract_wrappers/exchange_wrapper.ts index 72ae0d07e..6ef87b7ed 100644 --- a/src/contract_wrappers/exchange_wrapper.ts +++ b/src/contract_wrappers/exchange_wrapper.ts @@ -10,6 +10,7 @@ import { OrderValues, OrderAddresses, Order, + OrderFillOrKillRequest, SignedOrder, ContractEvent, ExchangeEvents, @@ -71,23 +72,6 @@ export class ExchangeWrapper extends ContractWrapper { await this.stopWatchingExchangeLogEventsAsync(); delete this.exchangeContractIfExists; } - private async isValidSignatureUsingContractCallAsync(dataHex: string, ecSignature: ECSignature, - signerAddressHex: string): Promise<boolean> { - assert.isHexString('dataHex', dataHex); - assert.doesConformToSchema('ecSignature', ecSignature, ecSignatureSchema); - assert.isETHAddressHex('signerAddressHex', signerAddressHex); - - const exchangeInstance = await this.getExchangeContractAsync(); - - const isValidSignature = await exchangeInstance.isValidSignature.call( - signerAddressHex, - dataHex, - ecSignature.v, - ecSignature.r, - ecSignature.s, - ); - return isValidSignature; - } /** * 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 @@ -255,13 +239,8 @@ export class ExchangeWrapper extends ContractWrapper { const exchangeInstance = await this.getExchangeContractAsync(); await this.validateFillOrderAndThrowIfInvalidAsync(signedOrder, fillTakerAmount, takerAddress); - // Check that fillValue available >= fillTakerAmount - const orderHashHex = await this.getOrderHashHexAsync(signedOrder); - const unavailableTakerAmount = await this.getUnavailableTakerAmountAsync(orderHashHex); - const remainingTakerAmount = signedOrder.takerTokenAmount.minus(unavailableTakerAmount); - if (remainingTakerAmount < fillTakerAmount) { - throw new Error(ExchangeContractErrs.INSUFFICIENT_REMAINING_FILL_AMOUNT); - } + await this.validateFillOrKillOrderAndThrowIfInvalidAsync(signedOrder, exchangeInstance.address, + fillTakerAmount); const [orderAddresses, orderValues] = ExchangeWrapper.getOrderAddressesAndValues(signedOrder); @@ -291,6 +270,62 @@ export class ExchangeWrapper extends ContractWrapper { this.throwErrorLogsAsErrors(response.logs); } /** + * Batch version of fillOrKill. Allows a taker to specify a batch of orders that will either be atomically + * filled to the desired fillAmount or aborted. + */ + public async batchFillOrKillAsync(orderFillOrKillRequests: OrderFillOrKillRequest[], + takerAddress: string) { + await assert.isSenderAddressAsync('takerAddress', takerAddress, this.web3Wrapper); + const exchangeInstance = await this.getExchangeContractAsync(); + _.each(orderFillOrKillRequests, request => { + assert.doesConformToSchema('signedOrder', + SchemaValidator.convertToJSONSchemaCompatibleObject(request.signedOrder as object), + signedOrderSchema); + assert.isBigNumber('fillTakerAmount', request.fillTakerAmount); + this.validateFillOrKillOrderAndThrowIfInvalidAsync(request.signedOrder, + exchangeInstance.address, + request.fillTakerAmount); + }); + + const orderAddressesValuesAndTakerTokenFillAmounts = _.map(orderFillOrKillRequests, request => { + return [ + ...ExchangeWrapper.getOrderAddressesAndValues(request.signedOrder), + request.fillTakerAmount, + request.signedOrder.ecSignature.v, + request.signedOrder.ecSignature.r, + request.signedOrder.ecSignature.s, + ]; + }); + + const [orderAddresses, orderValues, fillTakerAmounts, vParams, rParams, sParams] = + _.unzip<any>(orderAddressesValuesAndTakerTokenFillAmounts); + + const gas = await exchangeInstance.batchFillOrKill.estimateGas( + orderAddresses, + orderValues, + fillTakerAmounts, + vParams, + rParams, + sParams, + { + from: takerAddress, + }, + ); + const response: ContractResponse = await exchangeInstance.batchFillOrKill( + orderAddresses, + orderValues, + fillTakerAmounts, + vParams, + rParams, + sParams, + { + from: takerAddress, + gas, + }, + ); + this.throwErrorLogsAsErrors(response.logs); + } + /** * Cancel a given fill amount of an order. Cancellations are cumulative. */ public async cancelOrderAsync( @@ -403,6 +438,23 @@ export class ExchangeWrapper extends ContractWrapper { logEventObj.watch(callback); this.exchangeLogEventObjs.push(logEventObj); } + private async isValidSignatureUsingContractCallAsync(dataHex: string, ecSignature: ECSignature, + signerAddressHex: string): Promise<boolean> { + assert.isHexString('dataHex', dataHex); + assert.doesConformToSchema('ecSignature', ecSignature, ecSignatureSchema); + assert.isETHAddressHex('signerAddressHex', signerAddressHex); + + const exchangeInstance = await this.getExchangeContractAsync(); + + const isValidSignature = await exchangeInstance.isValidSignature.call( + signerAddressHex, + dataHex, + ecSignature.v, + ecSignature.r, + ecSignature.s, + ); + return isValidSignature; + } private async getOrderHashHexAsync(order: Order|SignedOrder): Promise<string> { const exchangeInstance = await this.getExchangeContractAsync(); const orderHashHex = utils.getOrderHashHex(order, exchangeInstance.address); @@ -460,6 +512,17 @@ export class ExchangeWrapper extends ContractWrapper { throw new Error(ExchangeContractErrs.ORDER_CANCEL_EXPIRED); } } + private async validateFillOrKillOrderAndThrowIfInvalidAsync(signedOrder: SignedOrder, + exchangeAddress: string, + fillTakerAmount: BigNumber.BigNumber) { + // Check that fillValue available >= fillTakerAmount + const orderHashHex = utils.getOrderHashHex(signedOrder, exchangeAddress); + const unavailableTakerAmount = await this.getUnavailableTakerAmountAsync(orderHashHex); + const remainingTakerAmount = signedOrder.takerTokenAmount.minus(unavailableTakerAmount); + if (remainingTakerAmount < fillTakerAmount) { + throw new Error(ExchangeContractErrs.INSUFFICIENT_REMAINING_FILL_AMOUNT); + } + } /** * This method does not currently validate the edge-case where the makerToken or takerToken is also the token used * to pay fees (ZRX). It is possible for them to have enough for fees and the transfer but not both. diff --git a/src/types.ts b/src/types.ts index edd7f2d33..dc5a5e6b3 100644 --- a/src/types.ts +++ b/src/types.ts @@ -92,6 +92,12 @@ export interface ExchangeContract extends ContractInstance { estimateGas: (orderAddresses: OrderAddresses, orderValues: OrderValues, fillAmount: BigNumber.BigNumber, v: number, r: string, s: string, txOpts?: TxOpts) => number; }; + batchFillOrKill: { + (orderAddresses: OrderAddresses[], orderValues: OrderValues[], fillValuesT: BigNumber.BigNumber[], + v: number[], r: string[], s: string[], txOpts: TxOpts): ContractResponse; + estimateGas: (orderAddresses: OrderAddresses[], orderValues: OrderValues[], fillValuesT: BigNumber.BigNumber[], + v: number[], r: string[], s: string[], txOpts?: TxOpts) => number; + }; filled: { call: (orderHash: string) => BigNumber.BigNumber; }; @@ -236,6 +242,11 @@ export interface SubscriptionOpts { export type DoneCallback = (err?: Error) => void; +export interface OrderFillOrKillRequest { + signedOrder: SignedOrder; + fillTakerAmount: BigNumber.BigNumber; +} + export interface OrderCancellationRequest { order: Order|SignedOrder; takerTokenCancelAmount: BigNumber.BigNumber; |