diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/0x.js.ts | 69 |
1 files changed, 41 insertions, 28 deletions
diff --git a/src/0x.js.ts b/src/0x.js.ts index a29c25e0c..19e38aafe 100644 --- a/src/0x.js.ts +++ b/src/0x.js.ts @@ -19,6 +19,7 @@ import {TokenWrapper} from './contract_wrappers/token_wrapper'; import {SolidityTypes, ECSignature, ZeroExError} from './types'; import {Order} from './types'; import {orderSchema} from './schemas/order_schemas'; +import * as ExchangeArtifacts from '../artifacts/Exchange.json'; // Customize our BigNumber instances bigNumberConfigs.configure(); @@ -33,34 +34,6 @@ export class ZeroEx { public token: TokenWrapper; private web3Wrapper: Web3Wrapper; /** - * Computes the orderHash given the order parameters and returns it as a hex encoded string. - */ - public static getOrderHashHex(exchangeContractAddr: string, order: Order): string { - assert.doesConformToSchema('order', - SchemaValidator.convertToJSONSchemaCompatibleObject(order as object), - orderSchema); - - const orderParts = [ - {value: exchangeContractAddr, type: SolidityTypes.address}, - {value: order.maker, type: SolidityTypes.address}, - {value: order.taker, type: SolidityTypes.address}, - {value: order.makerTokenAddress, type: SolidityTypes.address}, - {value: order.takerTokenAddress, type: SolidityTypes.address}, - {value: order.feeRecipient, type: SolidityTypes.address}, - {value: utils.bigNumberToBN(order.makerTokenAmount), type: SolidityTypes.uint256}, - {value: utils.bigNumberToBN(order.takerTokenAmount), type: SolidityTypes.uint256}, - {value: utils.bigNumberToBN(order.makerFee), type: SolidityTypes.uint256}, - {value: utils.bigNumberToBN(order.takerFee), type: SolidityTypes.uint256}, - {value: utils.bigNumberToBN(order.expirationUnixTimestampSec), type: SolidityTypes.uint256}, - {value: utils.bigNumberToBN(order.salt), type: SolidityTypes.uint256}, - ]; - const types = _.map(orderParts, o => o.type); - const values = _.map(orderParts, o => o.value); - const hashBuff = ethABI.soliditySHA3(types, values); - const hashHex = ethUtil.bufferToHex(hashBuff); - return hashHex; - } - /** * Verifies that the elliptic curve signature `signature` was generated * by signing `data` with the private key corresponding to the `signerAddressHex` address. */ @@ -151,6 +124,35 @@ export class ZeroEx { this.web3Wrapper.setDefaultAccount(account); } /** + * Computes the orderHash given the order parameters and returns it as a hex encoded string. + */ + public async getOrderHashHexAsync(order: Order): Promise<string> { + const exchangeContractAddr = await this.getExchangeAddressAsync(); + assert.doesConformToSchema('order', + SchemaValidator.convertToJSONSchemaCompatibleObject(order as object), + orderSchema); + + const orderParts = [ + {value: exchangeContractAddr, type: SolidityTypes.address}, + {value: order.maker, type: SolidityTypes.address}, + {value: order.taker, type: SolidityTypes.address}, + {value: order.makerTokenAddress, type: SolidityTypes.address}, + {value: order.takerTokenAddress, type: SolidityTypes.address}, + {value: order.feeRecipient, type: SolidityTypes.address}, + {value: utils.bigNumberToBN(order.makerTokenAmount), type: SolidityTypes.uint256}, + {value: utils.bigNumberToBN(order.takerTokenAmount), type: SolidityTypes.uint256}, + {value: utils.bigNumberToBN(order.makerFee), type: SolidityTypes.uint256}, + {value: utils.bigNumberToBN(order.takerFee), type: SolidityTypes.uint256}, + {value: utils.bigNumberToBN(order.expirationUnixTimestampSec), type: SolidityTypes.uint256}, + {value: utils.bigNumberToBN(order.salt), type: SolidityTypes.uint256}, + ]; + const types = _.map(orderParts, o => o.type); + const values = _.map(orderParts, o => o.value); + const hashBuff = ethABI.soliditySHA3(types, values); + const hashHex = ethUtil.bufferToHex(hashBuff); + return hashHex; + } + /** * Signs an orderHash and returns it's elliptic curve signature * This method currently supports TestRPC, Geth and Parity above and below V1.6.6 */ @@ -207,4 +209,15 @@ export class ZeroEx { } return ecSignature; } + private async getExchangeAddressAsync() { + const networkIdIfExists = await this.web3Wrapper.getNetworkIdIfExistsAsync(); + const exchangeNetworkConfigsIfExists = _.isUndefined(networkIdIfExists) ? + undefined : + (ExchangeArtifacts as any).networks[networkIdIfExists]; + if (_.isUndefined(exchangeNetworkConfigsIfExists)) { + throw new Error(ZeroExError.CONTRACT_NOT_DEPLOYED_ON_NETWORK); + } + const exchangeAddress = exchangeNetworkConfigsIfExists.address; + return exchangeAddress; + } } |