diff options
Diffstat (limited to 'packages/contracts/util/order.ts')
| -rw-r--r-- | packages/contracts/util/order.ts | 188 |
1 files changed, 94 insertions, 94 deletions
diff --git a/packages/contracts/util/order.ts b/packages/contracts/util/order.ts index e202d485b..31194c03e 100644 --- a/packages/contracts/util/order.ts +++ b/packages/contracts/util/order.ts @@ -11,98 +11,98 @@ import { OrderParams } from './types'; const web3: Web3 = (global as any).web3; export class Order { - public params: OrderParams; - constructor(params: OrderParams) { - this.params = params; - } - public isValidSignature() { - const { v, r, s } = this.params; - if (_.isUndefined(v) || _.isUndefined(r) || _.isUndefined(s)) { - throw new Error('Cannot call isValidSignature on unsigned order'); - } - const orderHash = this._getOrderHash(); - const msgHash = ethUtil.hashPersonalMessage(ethUtil.toBuffer(orderHash)); - try { - const pubKey = ethUtil.ecrecover(msgHash, v, ethUtil.toBuffer(r), ethUtil.toBuffer(s)); - const recoveredAddress = ethUtil.bufferToHex(ethUtil.pubToAddress(pubKey)); - return recoveredAddress === this.params.maker; - } catch (err) { - return false; - } - } - public async signAsync() { - const orderHash = this._getOrderHash(); - const signature = await promisify<string>(web3.eth.sign)(this.params.maker, orderHash); - const { v, r, s } = ethUtil.fromRpcSig(signature); - this.params = _.assign(this.params, { - orderHashHex: orderHash, - v, - r: ethUtil.bufferToHex(r), - s: ethUtil.bufferToHex(s), - }); - } - public createFill(shouldThrowOnInsufficientBalanceOrAllowance?: boolean, fillTakerTokenAmount?: BigNumber) { - const fill = { - orderAddresses: [ - this.params.maker, - this.params.taker, - this.params.makerToken, - this.params.takerToken, - this.params.feeRecipient, - ], - orderValues: [ - this.params.makerTokenAmount, - this.params.takerTokenAmount, - this.params.makerFee, - this.params.takerFee, - this.params.expirationTimestampInSec, - this.params.salt, - ], - fillTakerTokenAmount: fillTakerTokenAmount || this.params.takerTokenAmount, - shouldThrowOnInsufficientBalanceOrAllowance: !!shouldThrowOnInsufficientBalanceOrAllowance, - v: this.params.v, - r: this.params.r, - s: this.params.s, - }; - return fill; - } - public createCancel(cancelTakerTokenAmount?: BigNumber) { - const cancel = { - orderAddresses: [ - this.params.maker, - this.params.taker, - this.params.makerToken, - this.params.takerToken, - this.params.feeRecipient, - ], - orderValues: [ - this.params.makerTokenAmount, - this.params.takerTokenAmount, - this.params.makerFee, - this.params.takerFee, - this.params.expirationTimestampInSec, - this.params.salt, - ], - cancelTakerTokenAmount: cancelTakerTokenAmount || this.params.takerTokenAmount, - }; - return cancel; - } - private _getOrderHash(): string { - const orderHash = crypto.solSHA3([ - this.params.exchangeContractAddress, - this.params.maker, - this.params.taker, - this.params.makerToken, - this.params.takerToken, - this.params.feeRecipient, - this.params.makerTokenAmount, - this.params.takerTokenAmount, - this.params.makerFee, - this.params.takerFee, - this.params.expirationTimestampInSec, - this.params.salt, - ]); - const orderHashHex = ethUtil.bufferToHex(orderHash); - return orderHashHex; - } + public params: OrderParams; + constructor(params: OrderParams) { + this.params = params; + } + public isValidSignature() { + const { v, r, s } = this.params; + if (_.isUndefined(v) || _.isUndefined(r) || _.isUndefined(s)) { + throw new Error('Cannot call isValidSignature on unsigned order'); + } + const orderHash = this._getOrderHash(); + const msgHash = ethUtil.hashPersonalMessage(ethUtil.toBuffer(orderHash)); + try { + const pubKey = ethUtil.ecrecover(msgHash, v, ethUtil.toBuffer(r), ethUtil.toBuffer(s)); + const recoveredAddress = ethUtil.bufferToHex(ethUtil.pubToAddress(pubKey)); + return recoveredAddress === this.params.maker; + } catch (err) { + return false; + } + } + public async signAsync() { + const orderHash = this._getOrderHash(); + const signature = await promisify<string>(web3.eth.sign)(this.params.maker, orderHash); + const { v, r, s } = ethUtil.fromRpcSig(signature); + this.params = _.assign(this.params, { + orderHashHex: orderHash, + v, + r: ethUtil.bufferToHex(r), + s: ethUtil.bufferToHex(s), + }); + } + public createFill(shouldThrowOnInsufficientBalanceOrAllowance?: boolean, fillTakerTokenAmount?: BigNumber) { + const fill = { + orderAddresses: [ + this.params.maker, + this.params.taker, + this.params.makerToken, + this.params.takerToken, + this.params.feeRecipient, + ], + orderValues: [ + this.params.makerTokenAmount, + this.params.takerTokenAmount, + this.params.makerFee, + this.params.takerFee, + this.params.expirationTimestampInSec, + this.params.salt, + ], + fillTakerTokenAmount: fillTakerTokenAmount || this.params.takerTokenAmount, + shouldThrowOnInsufficientBalanceOrAllowance: !!shouldThrowOnInsufficientBalanceOrAllowance, + v: this.params.v, + r: this.params.r, + s: this.params.s, + }; + return fill; + } + public createCancel(cancelTakerTokenAmount?: BigNumber) { + const cancel = { + orderAddresses: [ + this.params.maker, + this.params.taker, + this.params.makerToken, + this.params.takerToken, + this.params.feeRecipient, + ], + orderValues: [ + this.params.makerTokenAmount, + this.params.takerTokenAmount, + this.params.makerFee, + this.params.takerFee, + this.params.expirationTimestampInSec, + this.params.salt, + ], + cancelTakerTokenAmount: cancelTakerTokenAmount || this.params.takerTokenAmount, + }; + return cancel; + } + private _getOrderHash(): string { + const orderHash = crypto.solSHA3([ + this.params.exchangeContractAddress, + this.params.maker, + this.params.taker, + this.params.makerToken, + this.params.takerToken, + this.params.feeRecipient, + this.params.makerTokenAmount, + this.params.takerTokenAmount, + this.params.makerFee, + this.params.takerFee, + this.params.expirationTimestampInSec, + this.params.salt, + ]); + const orderHashHex = ethUtil.bufferToHex(orderHash); + return orderHashHex; + } } |