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author | Jacob Evans <jacob@dekz.net> | 2018-10-05 09:45:53 +0800 |
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committer | Jacob Evans <jacob@dekz.net> | 2018-10-05 15:12:17 +0800 |
commit | 75d274f330dc0c18577e764ca77ffb36d5a3f27e (patch) | |
tree | 9a70714a89783dfe58ffa002d39f3967de957bdc /packages/order-utils/src/signature_utils.ts | |
parent | 6e462b7dba61611a5347c9aa181d4ae69294d7af (diff) | |
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Return SignedOrder from signing utils.
Create a helper back in EIP712Utils for code cleanup.
Moved constants in order-utils into the constants object
Diffstat (limited to 'packages/order-utils/src/signature_utils.ts')
-rw-r--r-- | packages/order-utils/src/signature_utils.ts | 64 |
1 files changed, 31 insertions, 33 deletions
diff --git a/packages/order-utils/src/signature_utils.ts b/packages/order-utils/src/signature_utils.ts index 2d7fcfc9e..8c92b87dd 100644 --- a/packages/order-utils/src/signature_utils.ts +++ b/packages/order-utils/src/signature_utils.ts @@ -1,5 +1,5 @@ import { schemas } from '@0xproject/json-schemas'; -import { ECSignature, Order, SignatureType, ValidatorSignature } from '@0xproject/types'; +import { ECSignature, Order, SignatureType, SignedOrder, ValidatorSignature } from '@0xproject/types'; import { Web3Wrapper } from '@0xproject/web3-wrapper'; import { Provider } from 'ethereum-types'; import * as ethUtil from 'ethereumjs-util'; @@ -7,11 +7,11 @@ import * as _ from 'lodash'; import { artifacts } from './artifacts'; import { assert } from './assert'; -import { EIP712_DOMAIN_NAME, EIP712_DOMAIN_SCHEMA, EIP712_DOMAIN_VERSION } from './constants'; +import { eip712Utils } from './eip712_utils'; import { ExchangeContract } from './generated_contract_wrappers/exchange'; import { IValidatorContract } from './generated_contract_wrappers/i_validator'; import { IWalletContract } from './generated_contract_wrappers/i_wallet'; -import { EIP712_ORDER_SCHEMA, orderHashUtils } from './order_hash'; +import { orderHashUtils } from './order_hash'; import { OrderError } from './types'; import { utils } from './utils'; @@ -195,53 +195,45 @@ export const signatureUtils = { }, /** * Signs an order and returns its elliptic curve signature and signature type. First `eth_signTypedData` is requested - * then a fallback to `eth_sign` if not available on this provider. + * then a fallback to `eth_sign` if not available on the supplied provider. * @param order The Order to sign. * @param signerAddress The hex encoded Ethereum address you wish to sign it with. This address - * must be available via the Provider supplied to 0x.js. - * @return A hex encoded string containing the Elliptic curve signature generated by signing the orderHash and the Signature Type. + * must be available via the supplied Provider. + * @return A SignedOrder containing the order and Elliptic curve signature with Signature Type. */ - async ecSignOrderAsync(provider: Provider, order: Order, signerAddress: string): Promise<string> { + async ecSignOrderAsync(provider: Provider, order: Order, signerAddress: string): Promise<SignedOrder> { try { - const signatureHex = signatureUtils.ecSignTypedDataOrderAsync(provider, order, signerAddress); - return signatureHex; + const signedOrder = signatureUtils.ecSignTypedDataOrderAsync(provider, order, signerAddress); + return signedOrder; } catch (err) { // Fallback to using EthSign when ethSignTypedData is not supported const orderHash = orderHashUtils.getOrderHashHex(order); const signatureHex = await signatureUtils.ecSignHashAsync(provider, orderHash, signerAddress); - return signatureHex; + const signedOrder = { + ...order, + signature: signatureHex, + }; + return signedOrder; } }, /** * Signs an order using `eth_signTypedData` and returns its elliptic curve signature and signature type. * @param order The Order to sign. * @param signerAddress The hex encoded Ethereum address you wish to sign it with. This address - * must be available via the Provider supplied to 0x.js. - * @return A hex encoded string containing the Elliptic curve signature generated by signing the order with `eth_signTypedData` - * and the Signature Type. + * must be available via the supplied Provider. + * @return A SignedOrder containing the order and Elliptic curve signature with Signature Type. */ - async ecSignTypedDataOrderAsync(provider: Provider, order: Order, signerAddress: string): Promise<string> { + async ecSignTypedDataOrderAsync(provider: Provider, order: Order, signerAddress: string): Promise<SignedOrder> { assert.isWeb3Provider('provider', provider); assert.isETHAddressHex('signerAddress', signerAddress); const web3Wrapper = new Web3Wrapper(provider); await assert.isSenderAddressAsync('signerAddress', signerAddress, web3Wrapper); + // Detect if Metamask to transition users to the MetamaskSubprovider + if ((provider as any).isMetaMask) { + throw new Error('Unsupported Provider, please use MetamaskSubprovider.'); + } const normalizedSignerAddress = signerAddress.toLowerCase(); - const normalizedOrder = _.mapValues(order, value => { - return _.isObject(value) ? value.toString() : value; - }); - const typedData = { - types: { - EIP712Domain: EIP712_DOMAIN_SCHEMA.parameters, - Order: EIP712_ORDER_SCHEMA.parameters, - }, - domain: { - name: EIP712_DOMAIN_NAME, - version: EIP712_DOMAIN_VERSION, - verifyingContract: order.exchangeAddress, - }, - message: normalizedOrder, - primaryType: 'Order', - }; + const typedData = eip712Utils.createOrderTypedData(order); const signature = await web3Wrapper.signTypedDataAsync(normalizedSignerAddress, typedData); const ecSignatureRSV = parseSignatureHexAsRSV(signature); const signatureBuffer = Buffer.concat([ @@ -251,14 +243,16 @@ export const signatureUtils = { ethUtil.toBuffer(SignatureType.EIP712), ]); const signatureHex = `0x${signatureBuffer.toString('hex')}`; - return signatureHex; + return { + ...order, + signature: signatureHex, + }; }, /** * Signs a hash and returns its elliptic curve signature and signature type. - * This method currently supports TestRPC, Geth and Parity above and below V1.6.6 * @param msgHash Hex encoded message to sign. * @param signerAddress The hex encoded Ethereum address you wish to sign it with. This address - * must be available via the Provider supplied to 0x.js. + * must be available via the supplied Provider. * @return A hex encoded string containing the Elliptic curve signature generated by signing the msgHash and the Signature Type. */ async ecSignHashAsync(provider: Provider, msgHash: string, signerAddress: string): Promise<string> { @@ -268,6 +262,10 @@ export const signatureUtils = { const web3Wrapper = new Web3Wrapper(provider); await assert.isSenderAddressAsync('signerAddress', signerAddress, web3Wrapper); const normalizedSignerAddress = signerAddress.toLowerCase(); + // Detect if Metamask to transition users to the MetamaskSubprovider + if ((provider as any).isMetaMask) { + throw new Error('Unsupported Provider, please use MetamaskSubprovider.'); + } const signature = await web3Wrapper.signMessageAsync(normalizedSignerAddress, msgHash); const prefixedMsgHashHex = signatureUtils.addSignedMessagePrefix(msgHash); |