Merge pull request #1576 from 0xProject/feat/transaction-hash

Add transactionHashUtils to order-utils package
This commit is contained in:
Amir Bandeali
2019-02-05 10:03:30 -08:00
committed by GitHub
23 changed files with 298 additions and 94 deletions

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@@ -8,14 +8,13 @@ import {
OrderFactory,
orderUtils,
provider,
SignedTransaction,
TransactionFactory,
txDefaults,
web3Wrapper,
} from '@0x/contracts-test-utils';
import { BlockchainLifecycle } from '@0x/dev-utils';
import { assetDataUtils, generatePseudoRandomSalt } from '@0x/order-utils';
import { OrderWithoutExchangeAddress, RevertReason, SignedOrder } from '@0x/types';
import { OrderWithoutExchangeAddress, RevertReason, SignedOrder, SignedZeroExTransaction } from '@0x/types';
import { BigNumber } from '@0x/utils';
import * as chai from 'chai';
import * as _ from 'lodash';
@@ -41,7 +40,7 @@ describe('Exchange transactions', () => {
let erc20Balances: ERC20BalancesByOwner;
let signedOrder: SignedOrder;
let signedTx: SignedTransaction;
let signedTx: SignedZeroExTransaction;
let orderWithoutExchangeAddress: OrderWithoutExchangeAddress;
let orderFactory: OrderFactory;
let makerTransactionFactory: TransactionFactory;

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@@ -1,14 +1,7 @@
import { artifacts as erc20Artifacts } from '@0x/contracts-erc20';
import { artifacts as erc721Artifacts } from '@0x/contracts-erc721';
import {
FillResults,
formatters,
LogDecoder,
OrderInfo,
orderUtils,
SignedTransaction,
} from '@0x/contracts-test-utils';
import { SignedOrder } from '@0x/types';
import { FillResults, formatters, LogDecoder, OrderInfo, orderUtils } from '@0x/contracts-test-utils';
import { SignedOrder, SignedZeroExTransaction } from '@0x/types';
import { AbiEncoder, BigNumber } from '@0x/utils';
import { Web3Wrapper } from '@0x/web3-wrapper';
import { MethodAbi, Provider, TransactionReceiptWithDecodedLogs } from 'ethereum-types';
@@ -206,7 +199,7 @@ export class ExchangeWrapper {
return tx;
}
public async executeTransactionAsync(
signedTx: SignedTransaction,
signedTx: SignedZeroExTransaction,
from: string,
): Promise<TransactionReceiptWithDecodedLogs> {
const txHash = await this._exchange.executeTransaction.sendTransactionAsync(

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@@ -5,6 +5,10 @@
{
"note": "Upgrade the bignumber.js to v8.0.2",
"pr": 1517
},
{
"note": "Import `ZeroExTransaction` type instead of using type defined in this package",
"pr": 1576
}
],
"timestamp": 1549373905

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@@ -31,7 +31,6 @@ export {
MarketBuyOrders,
MarketSellOrders,
ERC721TokenIdsByOwner,
SignedTransaction,
OrderStatus,
AllowanceAmountScenario,
AssetDataScenario,

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@@ -1,10 +1,8 @@
import { eip712Utils, generatePseudoRandomSalt } from '@0x/order-utils';
import { SignatureType } from '@0x/types';
import { signTypedDataUtils } from '@0x/utils';
import { generatePseudoRandomSalt, transactionHashUtils } from '@0x/order-utils';
import { SignatureType, SignedZeroExTransaction } from '@0x/types';
import * as ethUtil from 'ethereumjs-util';
import { signingUtils } from './signing_utils';
import { SignedTransaction } from './types';
export class TransactionFactory {
private readonly _signerBuff: Buffer;
@@ -15,23 +13,25 @@ export class TransactionFactory {
this._exchangeAddress = exchangeAddress;
this._signerBuff = ethUtil.privateToAddress(this._privateKey);
}
public newSignedTransaction(data: string, signatureType: SignatureType = SignatureType.EthSign): SignedTransaction {
public newSignedTransaction(
data: string,
signatureType: SignatureType = SignatureType.EthSign,
): SignedZeroExTransaction {
const salt = generatePseudoRandomSalt();
const signerAddress = `0x${this._signerBuff.toString('hex')}`;
const executeTransactionData = {
const transaction = {
salt,
signerAddress,
data,
verifyingContractAddress: this._exchangeAddress,
};
const typedData = eip712Utils.createZeroExTransactionTypedData(executeTransactionData, this._exchangeAddress);
const eip712MessageBuffer = signTypedDataUtils.generateTypedDataHash(typedData);
const signature = signingUtils.signMessage(eip712MessageBuffer, this._privateKey, signatureType);
const signedTx = {
exchangeAddress: this._exchangeAddress,
const transactionHashBuffer = transactionHashUtils.getTransactionHashBuffer(transaction);
const signature = signingUtils.signMessage(transactionHashBuffer, this._privateKey, signatureType);
const signedTransaction = {
...transaction,
signature: `0x${signature.toString('hex')}`,
...executeTransactionData,
};
return signedTx;
return signedTransaction;
}
}

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@@ -107,14 +107,6 @@ export enum ContractName {
BalanceThresholdFilter = 'BalanceThresholdFilter',
}
export interface SignedTransaction {
exchangeAddress: string;
salt: BigNumber;
signerAddress: string;
data: string;
signature: string;
}
export interface TransferAmountsByMatchOrders {
// Left Maker
amountBoughtByLeftMaker: BigNumber;

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@@ -1,10 +1,18 @@
[
{
"version": "6.0.1",
"version": "7.0.0",
"changes": [
{
"note": "Fix OrderValidatorWrapper constructor to use the correct address",
"pr": 1568
},
{
"note": "Use new `ZeroExTransaction` interface",
"pr": 1576
},
{
"note": "Rename `getTransactionHex` to `getTransactionHashHex`",
"pr": 1576
}
],
"timestamp": 1549373905

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@@ -1,9 +1,9 @@
import { ExchangeContract } from '@0x/abi-gen-wrappers';
import { schemas } from '@0x/json-schemas';
import { eip712Utils } from '@0x/order-utils';
import { transactionHashUtils } from '@0x/order-utils';
import { Order, SignedOrder } from '@0x/types';
import { BigNumber, signTypedDataUtils } from '@0x/utils';
import { BigNumber } from '@0x/utils';
import _ = require('lodash');
import { assert } from './assert';
@@ -19,23 +19,22 @@ export class TransactionEncoder {
this._exchangeInstance = exchangeInstance;
}
/**
* Encodes the transaction data for use with the Exchange contract.
* Hashes the transaction data for use with the Exchange contract.
* @param data The ABI Encoded 0x Exchange method. I.e fillOrder
* @param salt A random value to provide uniqueness and prevent replay attacks.
* @param signerAddress The address which will sign this transaction.
* @return An unsigned hex encoded transaction for use in 0x Exchange executeTransaction.
* @return The hash of the 0x transaction.
*/
public getTransactionHex(data: string, salt: BigNumber, signerAddress: string): string {
public getTransactionHashHex(data: string, salt: BigNumber, signerAddress: string): string {
const exchangeAddress = this._getExchangeContract().address;
const executeTransactionData = {
const transaction = {
verifyingContractAddress: exchangeAddress,
salt,
signerAddress,
data,
};
const typedData = eip712Utils.createZeroExTransactionTypedData(executeTransactionData, exchangeAddress);
const eip712MessageBuffer = signTypedDataUtils.generateTypedDataHash(typedData);
const messageHex = `0x${eip712MessageBuffer.toString('hex')}`;
return messageHex;
const hashHex = transactionHashUtils.getTransactionHashHex(transaction);
return hashHex;
}
/**
* Encodes a fillOrder transaction.

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@@ -83,8 +83,8 @@ describe('TransactionEncoder', () => {
signerAddress: string = takerAddress,
): Promise<void> => {
const salt = generatePseudoRandomSalt();
const encodedTransaction = encoder.getTransactionHex(data, salt, signerAddress);
const signature = await signatureUtils.ecSignHashAsync(provider, encodedTransaction, signerAddress);
const transactionHash = encoder.getTransactionHashHex(data, salt, signerAddress);
const signature = await signatureUtils.ecSignHashAsync(provider, transactionHash, signerAddress);
txHash = await contractWrappers.exchange.executeTransactionAsync(
salt,
signerAddress,

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@@ -5,6 +5,10 @@
{
"note": "Upgrade the bignumber.js to v8.0.2",
"pr": 1517
},
{
"note": "Add `verifyingContractAddress` to `zeroExTransactionSchema`",
"pr": 1576
}
],
"timestamp": 1549373905

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@@ -1,10 +1,11 @@
{
"id": "/zeroExTransactionSchema",
"properties": {
"verifyingContractAddress": { "$ref": "/addressSchema" },
"data": { "$ref": "/hexSchema" },
"signerAddress": { "$ref": "/addressSchema" },
"salt": { "$ref": "/wholeNumberSchema" }
},
"required": ["data", "salt", "signerAddress"],
"required": ["verifyingContractAddress", "data", "salt", "signerAddress"],
"type": "object"
}

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@@ -1,4 +1,21 @@
[
{
"version": "5.0.0",
"changes": [
{
"note": "Add `transactionHashUtils`",
"pr": 1576
},
{
"note": "Refactor `eip712Utils` to allow custom domain params",
"pr": 1576
},
{
"note": "Export constant EIP712 params",
"pr": 1576
}
]
},
{
"version": "4.0.0",
"changes": [

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@@ -68,9 +68,9 @@ export const constants = {
SELECTOR_CHAR_LENGTH_WITH_PREFIX: 10,
INFINITE_TIMESTAMP_SEC: new BigNumber(2524604400), // Close to infinite
ZERO_AMOUNT: new BigNumber(0),
EIP712_DOMAIN_NAME: '0x Protocol',
EIP712_DOMAIN_VERSION: '2',
EIP712_DOMAIN_SCHEMA: {
EXCHANGE_DOMAIN_NAME: '0x Protocol',
EXCHANGE_DOMAIN_VERSION: '2',
DEFAULT_DOMAIN_SCHEMA: {
name: 'EIP712Domain',
parameters: [
{ name: 'name', type: 'string' },
@@ -78,7 +78,7 @@ export const constants = {
{ name: 'verifyingContract', type: 'address' },
],
},
EIP712_ORDER_SCHEMA: {
EXCHANGE_ORDER_SCHEMA: {
name: 'Order',
parameters: [
{ name: 'makerAddress', type: 'address' },
@@ -95,7 +95,7 @@ export const constants = {
{ name: 'takerAssetData', type: 'bytes' },
],
},
EIP712_ZEROEX_TRANSACTION_SCHEMA: {
EXCHANGE_ZEROEX_TRANSACTION_SCHEMA: {
name: 'ZeroExTransaction',
parameters: [
{ name: 'salt', type: 'uint256' },

View File

@@ -1,36 +1,49 @@
import { assert } from '@0x/assert';
import { schemas } from '@0x/json-schemas';
import { EIP712Object, EIP712TypedData, EIP712Types, Order, ZeroExTransaction } from '@0x/types';
import {
EIP712DomainWithDefaultSchema,
EIP712Object,
EIP712TypedData,
EIP712Types,
Order,
ZeroExTransaction,
} from '@0x/types';
import * as _ from 'lodash';
import { constants } from './constants';
export const DEFAULT_DOMAIN_SCHEMA = constants.DEFAULT_DOMAIN_SCHEMA;
export const EXCHANGE_DOMAIN_NAME = constants.EXCHANGE_DOMAIN_NAME;
export const EXCHANGE_DOMAIN_VERSION = constants.EXCHANGE_DOMAIN_VERSION;
export const EXCHANGE_ORDER_SCHEMA = constants.EXCHANGE_ORDER_SCHEMA;
export const EXCHANGE_ZEROEX_TRANSACTION_SCHEMA = constants.EXCHANGE_ZEROEX_TRANSACTION_SCHEMA;
export const eip712Utils = {
/**
* Creates a EIP712TypedData object specific to the 0x protocol for use with signTypedData.
* @param primaryType The primary type found in message
* @param types The additional types for the data in message
* @param message The contents of the message
* @param exchangeAddress The address of the exchange contract
* @param domain Domain containing a name (optional), version (optional), and verifying contract address
* @return A typed data object
*/
createTypedData: (
primaryType: string,
types: EIP712Types,
message: EIP712Object,
exchangeAddress: string,
domain: EIP712DomainWithDefaultSchema,
): EIP712TypedData => {
assert.isETHAddressHex('exchangeAddress', exchangeAddress);
assert.isETHAddressHex('verifyingContractAddress', domain.verifyingContractAddress);
assert.isString('primaryType', primaryType);
const typedData = {
types: {
EIP712Domain: constants.EIP712_DOMAIN_SCHEMA.parameters,
EIP712Domain: DEFAULT_DOMAIN_SCHEMA.parameters,
...types,
},
domain: {
name: constants.EIP712_DOMAIN_NAME,
version: constants.EIP712_DOMAIN_VERSION,
verifyingContract: exchangeAddress,
name: _.isUndefined(domain.name) ? EXCHANGE_DOMAIN_NAME : domain.name,
version: _.isUndefined(domain.version) ? EXCHANGE_DOMAIN_VERSION : domain.version,
verifyingContract: domain.verifyingContractAddress,
},
message,
primaryType,
@@ -48,11 +61,14 @@ export const eip712Utils = {
const normalizedOrder = _.mapValues(order, value => {
return !_.isString(value) ? value.toString() : value;
});
const domain = {
verifyingContractAddress: order.exchangeAddress,
};
const typedData = eip712Utils.createTypedData(
constants.EIP712_ORDER_SCHEMA.name,
{ Order: constants.EIP712_ORDER_SCHEMA.parameters },
EXCHANGE_ORDER_SCHEMA.name,
{ Order: EXCHANGE_ORDER_SCHEMA.parameters },
normalizedOrder,
order.exchangeAddress,
domain,
);
return typedData;
},
@@ -60,23 +76,22 @@ export const eip712Utils = {
* Creates an ExecuteTransaction EIP712TypedData object for use with signTypedData and
* 0x Exchange executeTransaction.
* @param ZeroExTransaction the 0x transaction
* @param exchangeAddress The address of the exchange contract
* @return A typed data object
*/
createZeroExTransactionTypedData: (
zeroExTransaction: ZeroExTransaction,
exchangeAddress: string,
): EIP712TypedData => {
assert.isETHAddressHex('exchangeAddress', exchangeAddress);
createZeroExTransactionTypedData: (zeroExTransaction: ZeroExTransaction): EIP712TypedData => {
assert.isETHAddressHex('verifyingContractAddress', zeroExTransaction.verifyingContractAddress);
assert.doesConformToSchema('zeroExTransaction', zeroExTransaction, schemas.zeroExTransactionSchema);
const normalizedTransaction = _.mapValues(zeroExTransaction, value => {
return !_.isString(value) ? value.toString() : value;
});
const domain = {
verifyingContractAddress: zeroExTransaction.verifyingContractAddress,
};
const typedData = eip712Utils.createTypedData(
constants.EIP712_ZEROEX_TRANSACTION_SCHEMA.name,
{ ZeroExTransaction: constants.EIP712_ZEROEX_TRANSACTION_SCHEMA.parameters },
EXCHANGE_ZEROEX_TRANSACTION_SCHEMA.name,
{ ZeroExTransaction: EXCHANGE_ZEROEX_TRANSACTION_SCHEMA.parameters },
normalizedTransaction,
exchangeAddress,
domain,
);
return typedData;
},

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@@ -3,6 +3,7 @@ export { signatureUtils } from './signature_utils';
export { generatePseudoRandomSalt } from './salt';
export { assetDataUtils } from './asset_data_utils';
export { marketUtils } from './market_utils';
export { transactionHashUtils } from './transaction_hash';
export { rateUtils } from './rate_utils';
export { sortingUtils } from './sorting_utils';
export { orderParsingUtils } from './parsing_utils';
@@ -18,7 +19,14 @@ export { ExchangeTransferSimulator } from './exchange_transfer_simulator';
export { BalanceAndProxyAllowanceLazyStore } from './store/balance_and_proxy_allowance_lazy_store';
export { OrderFilledCancelledLazyStore } from './store/order_filled_cancelled_lazy_store';
export { eip712Utils } from './eip712_utils';
export {
eip712Utils,
DEFAULT_DOMAIN_SCHEMA,
EXCHANGE_DOMAIN_NAME,
EXCHANGE_DOMAIN_VERSION,
EXCHANGE_ORDER_SCHEMA,
EXCHANGE_ZEROEX_TRANSACTION_SCHEMA,
} from './eip712_utils';
export {
Provider,
@@ -50,7 +58,9 @@ export {
EIP712Types,
EIP712Object,
EIP712ObjectValue,
EIP712DomainWithDefaultSchema,
ZeroExTransaction,
SignedZeroExTransaction,
} from '@0x/types';
export {
OrderError,

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@@ -4,6 +4,7 @@ import { signTypedDataUtils } from '@0x/utils';
import * as _ from 'lodash';
import { assert } from './assert';
import { constants } from './constants';
import { eip712Utils } from './eip712_utils';
const INVALID_TAKER_FORMAT = 'instance.takerAddress is not of a type(s) string';
@@ -34,8 +35,9 @@ export const orderHashUtils = {
assert.doesConformToSchema('order', order, schemas.orderSchema, [schemas.hexSchema]);
} catch (error) {
if (_.includes(error.message, INVALID_TAKER_FORMAT)) {
const errMsg =
'Order taker must be of type string. If you want anyone to be able to fill an order - pass ZeroEx.NULL_ADDRESS';
const errMsg = `Order taker must be of type string. If you want anyone to be able to fill an order - pass ${
constants.NULL_ADDRESS
}`;
throw new Error(errMsg);
}
throw error;
@@ -51,6 +53,17 @@ export const orderHashUtils = {
* @return A Buffer containing the resulting orderHash from hashing the supplied order
*/
getOrderHashBuffer(order: SignedOrder | Order): Buffer {
try {
assert.doesConformToSchema('order', order, schemas.orderSchema, [schemas.hexSchema]);
} catch (error) {
if (_.includes(error.message, INVALID_TAKER_FORMAT)) {
const errMsg = `Order taker must be of type string. If you want anyone to be able to fill an order - pass ${
constants.NULL_ADDRESS
}`;
throw new Error(errMsg);
}
throw error;
}
const typedData = eip712Utils.createOrderTypedData(order);
const orderHashBuff = signTypedDataUtils.generateTypedDataHash(typedData);
return orderHashBuff;

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@@ -0,0 +1,46 @@
import { schemas, SchemaValidator } from '@0x/json-schemas';
import { SignedZeroExTransaction, ZeroExTransaction } from '@0x/types';
import { signTypedDataUtils } from '@0x/utils';
import * as _ from 'lodash';
import { assert } from './assert';
import { eip712Utils } from './eip712_utils';
export const transactionHashUtils = {
/**
* Checks if the supplied hex encoded 0x transaction hash is valid.
* Note: Valid means it has the expected format, not that a transaction with the transactionHash exists.
* Use this method when processing transactionHashes submitted as user input.
* @param transactionHash Hex encoded transactionHash.
* @return Whether the supplied transactionHash has the expected format.
*/
isValidTransactionHash(transactionHash: string): boolean {
// Since this method can be called to check if any arbitrary string conforms to an transactionHash's
// format, we only assert that we were indeed passed a string.
assert.isString('transactionHash', transactionHash);
const schemaValidator = new SchemaValidator();
const isValid = schemaValidator.validate(transactionHash, schemas.orderHashSchema).valid;
return isValid;
},
/**
* Computes the transactionHash for a supplied 0x transaction.
* @param transaction An object that conforms to the ZeroExTransaction or SignedZeroExTransaction interface definitions.
* @return Hex encoded string transactionHash from hashing the supplied order.
*/
getTransactionHashHex(transaction: ZeroExTransaction | SignedZeroExTransaction): string {
assert.doesConformToSchema('transaction', transaction, schemas.zeroExTransactionSchema, [schemas.hexSchema]);
const transactionHashBuff = transactionHashUtils.getTransactionHashBuffer(transaction);
const transactionHashHex = `0x${transactionHashBuff.toString('hex')}`;
return transactionHashHex;
},
/**
* Computes the transactionHash for a supplied 0x transaction.
* @param transaction An object that conforms to the ZeroExTransaction or SignedZeroExTransaction interface definitions.
* @return A Buffer containing the resulting transactionHash from hashing the supplied 0x transaction.
*/
getTransactionHashBuffer(transaction: ZeroExTransaction | SignedZeroExTransaction): Buffer {
const typedData = eip712Utils.createZeroExTransactionTypedData(transaction);
const transactionHashBuff = signTypedDataUtils.generateTypedDataHash(typedData);
return transactionHashBuff;
},
};

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@@ -3,7 +3,12 @@ import * as chai from 'chai';
import 'mocha';
import { constants } from '../src/constants';
import { eip712Utils } from '../src/eip712_utils';
import {
eip712Utils,
EXCHANGE_DOMAIN_NAME,
EXCHANGE_DOMAIN_VERSION,
EXCHANGE_ZEROEX_TRANSACTION_SCHEMA,
} from '../src/eip712_utils';
import { chaiSetup } from './utils/chai_setup';
@@ -12,33 +17,55 @@ const expect = chai.expect;
describe('EIP712 Utils', () => {
describe('createTypedData', () => {
it('adds in the EIP712DomainSeparator', () => {
it('adds in the EIP712DomainSeparator with default values', () => {
const primaryType = 'Test';
const typedData = eip712Utils.createTypedData(
primaryType,
{ Test: [{ name: 'testValue', type: 'uint256' }] },
{ testValue: '1' },
constants.NULL_ADDRESS,
{ verifyingContractAddress: constants.NULL_ADDRESS },
);
expect(typedData.domain).to.not.be.undefined();
expect(typedData.types.EIP712Domain).to.not.be.undefined();
const domainObject = typedData.domain;
expect(domainObject.name).to.eq(constants.EIP712_DOMAIN_NAME);
expect(domainObject.name).to.eq(EXCHANGE_DOMAIN_NAME);
expect(domainObject.version).to.eq(EXCHANGE_DOMAIN_VERSION);
expect(domainObject.verifyingContract).to.eq(constants.NULL_ADDRESS);
expect(typedData.primaryType).to.eq(primaryType);
});
it('adds in the EIP712DomainSeparator without default values', () => {
const primaryType = 'Test';
const domainName = 'testDomain';
const domainVersion = 'testVersion';
const typedData = eip712Utils.createTypedData(
primaryType,
{ Test: [{ name: 'testValue', type: 'uint256' }] },
{ testValue: '1' },
{ name: domainName, version: domainVersion, verifyingContractAddress: constants.NULL_ADDRESS },
);
expect(typedData.domain).to.not.be.undefined();
expect(typedData.types.EIP712Domain).to.not.be.undefined();
const domainObject = typedData.domain;
expect(domainObject.name).to.eq(domainName);
expect(domainObject.version).to.eq(domainVersion);
expect(domainObject.verifyingContract).to.eq(constants.NULL_ADDRESS);
expect(typedData.primaryType).to.eq(primaryType);
});
});
describe('createTypedData', () => {
describe('createZeroExTransactionTypedData', () => {
it('adds in the EIP712DomainSeparator', () => {
const typedData = eip712Utils.createZeroExTransactionTypedData(
{
salt: new BigNumber('0'),
data: constants.NULL_BYTES,
signerAddress: constants.NULL_ADDRESS,
},
constants.NULL_ADDRESS,
);
expect(typedData.primaryType).to.eq(constants.EIP712_ZEROEX_TRANSACTION_SCHEMA.name);
const typedData = eip712Utils.createZeroExTransactionTypedData({
salt: new BigNumber('0'),
data: constants.NULL_BYTES,
signerAddress: constants.NULL_ADDRESS,
verifyingContractAddress: constants.NULL_ADDRESS,
});
expect(typedData.primaryType).to.eq(EXCHANGE_ZEROEX_TRANSACTION_SCHEMA.name);
expect(typedData.types.EIP712Domain).to.not.be.undefined();
const domainObject = typedData.domain;
expect(domainObject.name).to.eq(EXCHANGE_DOMAIN_NAME);
expect(domainObject.version).to.eq(EXCHANGE_DOMAIN_VERSION);
expect(domainObject.verifyingContract).to.eq(constants.NULL_ADDRESS);
});
});
});

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@@ -54,8 +54,9 @@ describe('Order hashing', () => {
...order,
takerAddress: (null as any) as string,
};
const expectedErrorMessage =
'Order taker must be of type string. If you want anyone to be able to fill an order - pass ZeroEx.NULL_ADDRESS';
const expectedErrorMessage = `Order taker must be of type string. If you want anyone to be able to fill an order - pass ${
constants.NULL_ADDRESS
}`;
expect(() => orderHashUtils.getOrderHashHex(orderWithInvalidtakerFormat)).to.throw(expectedErrorMessage);
});
});

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@@ -0,0 +1,56 @@
import { ZeroExTransaction } from '@0x/types';
import { BigNumber } from '@0x/utils';
import * as chai from 'chai';
import 'mocha';
import { transactionHashUtils } from '../src';
import { constants } from '../src/constants';
import { chaiSetup } from './utils/chai_setup';
chaiSetup.configure();
const expect = chai.expect;
describe('0x transaction hashing', () => {
describe('#getTransactionHashHex', () => {
const expectedTransactionHash = '0x82c9bb2dcac4f868ec7a15c20ff6175cfc384c20ae6a872aa0342a840f108c2b';
const fakeVerifyingContractAddress = '0x5e72914535f202659083db3a02c984188fa26e9f';
const transaction: ZeroExTransaction = {
verifyingContractAddress: fakeVerifyingContractAddress,
signerAddress: constants.NULL_ADDRESS,
salt: new BigNumber(0),
data: constants.NULL_BYTES,
};
it('calculates the transaction hash', async () => {
const transactionHash = transactionHashUtils.getTransactionHashHex(transaction);
expect(transactionHash).to.be.equal(expectedTransactionHash);
});
it('calculates the transaction hash if amounts are strings', async () => {
// It's common for developers using javascript to provide the amounts
// as strings. Since we eventually toString() the BigNumber
// before encoding we should result in the same orderHash in this scenario
// tslint:disable-next-line:no-unnecessary-type-assertion
const transactionHash = transactionHashUtils.getTransactionHashHex({
...transaction,
salt: '0',
} as any);
expect(transactionHash).to.be.equal(expectedTransactionHash);
});
});
describe('#isValidTransactionHash', () => {
it('returns false if the value is not a hex string', () => {
const isValid = transactionHashUtils.isValidTransactionHash('not a hex');
expect(isValid).to.be.false();
});
it('returns false if the length is wrong', () => {
const isValid = transactionHashUtils.isValidTransactionHash('0xdeadbeef');
expect(isValid).to.be.false();
});
it('returns true if order hash is correct', () => {
const orderHashLength = 65;
const isValid = transactionHashUtils.isValidTransactionHash(`0x${Array(orderHashLength).join('0')}`);
expect(isValid).to.be.true();
});
});
});

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@@ -5,6 +5,14 @@
{
"note": "Upgrade the bignumber.js to v8.0.2",
"pr": 1517
},
{
"note": "Update `ZeroExTransaction` type and add `SignedZeroExTransaction` type",
"pr": 1576
},
{
"note": "Add `EIP712DomainWithDefaultSchema` type",
"pr": 1576
}
],
"timestamp": 1549373905

View File

@@ -45,11 +45,16 @@ export interface SignedOrder extends Order {
* ZeroExTransaction for use with 0x Exchange executeTransaction
*/
export interface ZeroExTransaction {
verifyingContractAddress: string;
salt: BigNumber;
signerAddress: string;
data: string;
}
export interface SignedZeroExTransaction extends ZeroExTransaction {
signature: string;
}
/**
* Elliptic Curve signature
*/
@@ -685,3 +690,9 @@ export interface DutchAuctionDetails {
currentAmount: BigNumber;
currentTimeSeconds: BigNumber;
}
export interface EIP712DomainWithDefaultSchema {
name?: string;
version?: string;
verifyingContractAddress: string;
}

View File

@@ -1,10 +1,11 @@
{
"id": "/zeroExTransactionSchema",
"properties": {
"verifyingContractAddress": { "$ref": "/addressSchema" },
"data": { "$ref": "/hexSchema" },
"signerAddress": { "$ref": "/addressSchema" },
"salt": { "$ref": "/wholeNumberSchema" }
},
"required": ["data", "salt", "signerAddress"],
"required": ["verifyingContractAddress", "data", "salt", "signerAddress"],
"type": "object"
}