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-rw-r--r--packages/contracts/src/contracts/current/protocol/Exchange/libs/LibEIP712.sol35
-rw-r--r--packages/contracts/src/contracts/current/protocol/Exchange/libs/LibOrder.sol30
-rw-r--r--packages/contracts/src/utils/order_factory.ts4
-rw-r--r--packages/contracts/src/utils/order_utils.ts56
-rw-r--r--packages/contracts/src/utils/transaction_factory.ts16
-rw-r--r--packages/contracts/src/utils/types.ts10
-rw-r--r--packages/contracts/test/exchange/core.ts5
-rw-r--r--packages/contracts/test/exchange/libs.ts9
-rw-r--r--packages/order-utils/src/eip712_utils.ts (renamed from packages/contracts/src/utils/eip712_utils.ts)51
-rw-r--r--packages/order-utils/src/index.ts3
-rw-r--r--packages/order-utils/src/order_hash.ts75
-rw-r--r--packages/order-utils/src/types.ts10
12 files changed, 121 insertions, 183 deletions
diff --git a/packages/contracts/src/contracts/current/protocol/Exchange/libs/LibEIP712.sol b/packages/contracts/src/contracts/current/protocol/Exchange/libs/LibEIP712.sol
index d28ef876f..7704e3db4 100644
--- a/packages/contracts/src/contracts/current/protocol/Exchange/libs/LibEIP712.sol
+++ b/packages/contracts/src/contracts/current/protocol/Exchange/libs/LibEIP712.sol
@@ -20,16 +20,19 @@ pragma solidity ^0.4.24;
contract LibEIP712 {
string public constant EIP191_HEADER = "\x19\x01";
+
bytes32 public constant EIP712_DOMAIN_SEPARATOR_NAME_HASH = keccak256("0x Protocol");
- bytes32 public constant EIP712_DOMAIN_SEPARATOR_VERSION_HASH = keccak256("1");
+ bytes32 public constant EIP712_DOMAIN_SEPARATOR_VERSION_HASH = keccak256("2");
bytes32 public constant EIP712_DOMAIN_SEPARATOR_SCHEMA_HASH = keccak256(
- "DomainSeparator(",
- "string name,",
- "string version,",
- "address contract",
- ")"
+ abi.encodePacked(
+ "DomainSeparator(",
+ "string name,",
+ "string version,",
+ "address contract",
+ ")"
+ )
);
function createEIP712Message(bytes32 hashStruct)
@@ -41,14 +44,18 @@ contract LibEIP712 {
// Source: https://github.com/ethereum/EIPs/pull/712
// TODO: Cache the Domain Separator
message = keccak256(
- EIP191_HEADER,
- keccak256(
- EIP712_DOMAIN_SEPARATOR_SCHEMA_HASH,
- EIP712_DOMAIN_SEPARATOR_NAME_HASH,
- EIP712_DOMAIN_SEPARATOR_VERSION_HASH,
- bytes32(address(this))
- ),
- hashStruct
+ abi.encodePacked(
+ EIP191_HEADER,
+ keccak256(
+ abi.encodePacked(
+ EIP712_DOMAIN_SEPARATOR_SCHEMA_HASH,
+ EIP712_DOMAIN_SEPARATOR_NAME_HASH,
+ EIP712_DOMAIN_SEPARATOR_VERSION_HASH,
+ bytes32(address(this))
+ )
+ ),
+ hashStruct
+ )
);
return message;
}
diff --git a/packages/contracts/src/contracts/current/protocol/Exchange/libs/LibOrder.sol b/packages/contracts/src/contracts/current/protocol/Exchange/libs/LibOrder.sol
index 6888918e2..ed532fd59 100644
--- a/packages/contracts/src/contracts/current/protocol/Exchange/libs/LibOrder.sol
+++ b/packages/contracts/src/contracts/current/protocol/Exchange/libs/LibOrder.sol
@@ -89,20 +89,22 @@ contract LibOrder is
orderHash = createEIP712Message(
keccak256(
abi.encodePacked(
- EIP712_ORDER_SCHEMA_HASH,
- bytes32(order.makerAddress),
- bytes32(order.takerAddress),
- bytes32(order.feeRecipientAddress),
- bytes32(order.senderAddress),
- order.makerAssetAmount,
- order.takerAssetAmount,
- order.makerFee,
- order.takerFee,
- order.expirationTimeSeconds,
- order.salt,
- keccak256(abi.encodePacked(order.makerAssetData)),
- keccak256(abi.encodePacked(order.takerAssetData))
- )));
+ EIP712_ORDER_SCHEMA_HASH,
+ bytes32(order.makerAddress),
+ bytes32(order.takerAddress),
+ bytes32(order.feeRecipientAddress),
+ bytes32(order.senderAddress),
+ order.makerAssetAmount,
+ order.takerAssetAmount,
+ order.makerFee,
+ order.takerFee,
+ order.expirationTimeSeconds,
+ order.salt,
+ keccak256(abi.encodePacked(order.makerAssetData)),
+ keccak256(abi.encodePacked(order.takerAssetData))
+ )
+ )
+ );
return orderHash;
}
}
diff --git a/packages/contracts/src/utils/order_factory.ts b/packages/contracts/src/utils/order_factory.ts
index bfe5013e8..dd02e1f5c 100644
--- a/packages/contracts/src/utils/order_factory.ts
+++ b/packages/contracts/src/utils/order_factory.ts
@@ -1,5 +1,5 @@
import { generatePseudoRandomSalt, orderHashUtils } from '@0xproject/order-utils';
-import { Order, SignatureType, SignedOrder, UnsignedOrder } from '@0xproject/types';
+import { Order, SignatureType, SignedOrder } from '@0xproject/types';
import { BigNumber } from '@0xproject/utils';
import * as _ from 'lodash';
@@ -26,7 +26,7 @@ export class OrderFactory {
takerAddress: constants.NULL_ADDRESS,
...this._defaultOrderParams,
...customOrderParams,
- } as any) as UnsignedOrder;
+ } as any) as Order;
const orderHashBuff = orderHashUtils.getOrderHashBuffer(order);
const signature = signingUtils.signMessage(orderHashBuff, this._privateKey, signatureType);
const signedOrder = {
diff --git a/packages/contracts/src/utils/order_utils.ts b/packages/contracts/src/utils/order_utils.ts
index 316350ffb..180761f2c 100644
--- a/packages/contracts/src/utils/order_utils.ts
+++ b/packages/contracts/src/utils/order_utils.ts
@@ -1,29 +1,8 @@
-import { Order, OrderWithoutExchangeAddress, SignedOrder, UnsignedOrder } from '@0xproject/types';
+import { OrderWithoutExchangeAddress, SignedOrder } from '@0xproject/types';
import { BigNumber } from '@0xproject/utils';
import ethUtil = require('ethereumjs-util');
-import * as _ from 'lodash';
-import { crypto } from './crypto';
-import { EIP712Utils } from './eip712_utils';
-import { CancelOrder, EIP712Schema, MatchOrder } from './types';
-
-const EIP712_ORDER_SCHEMA: EIP712Schema = {
- name: 'Order',
- parameters: [
- { name: 'makerAddress', type: 'address' },
- { name: 'takerAddress', type: 'address' },
- { name: 'feeRecipientAddress', type: 'address' },
- { name: 'senderAddress', type: 'address' },
- { name: 'makerAssetAmount', type: 'uint256' },
- { name: 'takerAssetAmount', type: 'uint256' },
- { name: 'makerFee', type: 'uint256' },
- { name: 'takerFee', type: 'uint256' },
- { name: 'expirationTimeSeconds', type: 'uint256' },
- { name: 'salt', type: 'uint256' },
- { name: 'makerAssetData', type: 'bytes' },
- { name: 'takerAssetData', type: 'bytes' },
- ],
-};
+import { CancelOrder, MatchOrder } from './types';
export const orderUtils = {
createFill: (signedOrder: SignedOrder, takerAssetFillAmount?: BigNumber) => {
@@ -58,37 +37,6 @@ export const orderUtils = {
};
return orderStruct;
},
- getOrderSchemaBuffer(): Buffer {
- return EIP712Utils.compileSchema(EIP712_ORDER_SCHEMA);
- },
- getOrderHashBuffer(order: SignedOrder | UnsignedOrder): Buffer {
- const makerAssetDataHash = crypto.solSHA3([ethUtil.toBuffer(order.makerAssetData)]);
- const takerAssetDataHash = crypto.solSHA3([ethUtil.toBuffer(order.takerAssetData)]);
-
- const orderParamsHashBuff = crypto.solSHA3([
- orderUtils.getOrderSchemaBuffer(),
- EIP712Utils.pad32Address(order.makerAddress),
- EIP712Utils.pad32Address(order.takerAddress),
- EIP712Utils.pad32Address(order.feeRecipientAddress),
- EIP712Utils.pad32Address(order.senderAddress),
- order.makerAssetAmount,
- order.takerAssetAmount,
- order.makerFee,
- order.takerFee,
- order.expirationTimeSeconds,
- order.salt,
- makerAssetDataHash,
- takerAssetDataHash,
- ]);
- const orderParamsHashHex = `0x${orderParamsHashBuff.toString('hex')}`;
- const orderHashBuff = EIP712Utils.createEIP712Message(orderParamsHashHex, order.exchangeAddress);
- return orderHashBuff;
- },
- getOrderHashHex(order: SignedOrder | UnsignedOrder): string {
- const orderHashBuff = orderUtils.getOrderHashBuffer(order);
- const orderHashHex = `0x${orderHashBuff.toString('hex')}`;
- return orderHashHex;
- },
createMatchOrders(signedOrderLeft: SignedOrder, signedOrderRight: SignedOrder): MatchOrder {
const fill = {
left: orderUtils.getOrderWithoutExchangeAddress(signedOrderLeft),
diff --git a/packages/contracts/src/utils/transaction_factory.ts b/packages/contracts/src/utils/transaction_factory.ts
index 1c1029d62..7aaf3691c 100644
--- a/packages/contracts/src/utils/transaction_factory.ts
+++ b/packages/contracts/src/utils/transaction_factory.ts
@@ -1,14 +1,9 @@
-import { crypto, generatePseudoRandomSalt } from '@0xproject/order-utils';
+import { crypto, EIP712Schema, EIP712Utils, generatePseudoRandomSalt } from '@0xproject/order-utils';
import { SignatureType } from '@0xproject/types';
-import { BigNumber } from '@0xproject/utils';
import * as ethUtil from 'ethereumjs-util';
-import * as _ from 'lodash';
-import { crypto } from './crypto';
-import { EIP712Utils } from './eip712_utils';
-import { orderUtils } from './order_utils';
import { signingUtils } from './signing_utils';
-import { EIP712Schema, SignatureType, SignedTransaction } from './types';
+import { SignedTransaction } from './types';
const EIP712_EXECUTE_TRANSACTION_SCHEMA: EIP712Schema = {
name: 'ExecuteTransaction',
@@ -30,20 +25,15 @@ export class TransactionFactory {
}
public newSignedTransaction(data: string, signatureType: SignatureType = SignatureType.EthSign): SignedTransaction {
const executeTransactionSchemaHashBuff = EIP712Utils.compileSchema(EIP712_EXECUTE_TRANSACTION_SCHEMA);
-
const salt = generatePseudoRandomSalt();
const dataHash = crypto.solSHA3([ethUtil.toBuffer(data)]);
-
const executeTransactionDataHash = crypto.solSHA3([
executeTransactionSchemaHashBuff,
salt,
EIP712Utils.pad32Buffer(this._signerBuff),
dataHash,
]);
-
- const executeTransactionMessageHex = `0x${executeTransactionDataHash.toString('hex')}`;
-
- const txHash = EIP712Utils.createEIP712Message(executeTransactionMessageHex, this._exchangeAddress);
+ const txHash = EIP712Utils.createEIP712Message(executeTransactionDataHash, this._exchangeAddress);
const signature = signingUtils.signMessage(txHash, this._privateKey, signatureType);
const signedTx = {
exchangeAddress: this._exchangeAddress,
diff --git a/packages/contracts/src/utils/types.ts b/packages/contracts/src/utils/types.ts
index 5b7f1bcee..360e1fdbc 100644
--- a/packages/contracts/src/utils/types.ts
+++ b/packages/contracts/src/utils/types.ts
@@ -147,13 +147,3 @@ export interface MatchOrder {
leftSignature: string;
rightSignature: string;
}
-
-export interface EIP712Parameter {
- name: string;
- type: string;
-}
-
-export interface EIP712Schema {
- name: string;
- parameters: EIP712Parameter[];
-}
diff --git a/packages/contracts/test/exchange/core.ts b/packages/contracts/test/exchange/core.ts
index 91ead93f0..6d62c2b86 100644
--- a/packages/contracts/test/exchange/core.ts
+++ b/packages/contracts/test/exchange/core.ts
@@ -1,5 +1,5 @@
import { BlockchainLifecycle } from '@0xproject/dev-utils';
-import { assetProxyUtils, crypto, orderHashUtils } from '@0xproject/order-utils';
+import { assetProxyUtils, orderHashUtils } from '@0xproject/order-utils';
import { AssetProxyId, SignedOrder } from '@0xproject/types';
import { BigNumber } from '@0xproject/utils';
import { Web3Wrapper } from '@0xproject/web3-wrapper';
@@ -24,8 +24,7 @@ import { ERC20Wrapper } from '../../src/utils/erc20_wrapper';
import { ERC721Wrapper } from '../../src/utils/erc721_wrapper';
import { ExchangeWrapper } from '../../src/utils/exchange_wrapper';
import { OrderFactory } from '../../src/utils/order_factory';
-import { orderUtils } from '../../src/utils/order_utils';
-import { ContractName, ERC20BalancesByOwner, OrderStatus } from '../../src/utils/types';
+import { ERC20BalancesByOwner } from '../../src/utils/types';
import { provider, txDefaults, web3Wrapper } from '../../src/utils/web3_wrapper';
chaiSetup.configure();
diff --git a/packages/contracts/test/exchange/libs.ts b/packages/contracts/test/exchange/libs.ts
index b6de4d3b0..ac9020bce 100644
--- a/packages/contracts/test/exchange/libs.ts
+++ b/packages/contracts/test/exchange/libs.ts
@@ -1,5 +1,5 @@
import { BlockchainLifecycle } from '@0xproject/dev-utils';
-import { assetProxyUtils, orderHashUtils } from '@0xproject/order-utils';
+import { assetProxyUtils, EIP712Utils, orderHashUtils } from '@0xproject/order-utils';
import { SignedOrder } from '@0xproject/types';
import { BigNumber } from '@0xproject/utils';
import * as chai from 'chai';
@@ -10,7 +10,6 @@ import { addressUtils } from '../../src/utils/address_utils';
import { artifacts } from '../../src/utils/artifacts';
import { chaiSetup } from '../../src/utils/chai_setup';
import { constants } from '../../src/utils/constants';
-import { EIP712Utils } from '../../src/utils/eip712_utils';
import { OrderFactory } from '../../src/utils/order_factory';
import { provider, txDefaults, web3Wrapper } from '../../src/utils/web3_wrapper';
@@ -58,15 +57,15 @@ describe('Exchange libs', () => {
describe('getOrderSchema', () => {
it('should output the correct order schema hash', async () => {
const orderSchema = await libs.getOrderSchemaHash.callAsync();
- const orderSchemaBuffer = orderHashUtils._getOrderSchemaHex();
- const schemaHashHex = `0x${orderSchemaBuffer.toString('hex')}`;
+ const schemaHashBuffer = orderHashUtils._getOrderSchemaBuffer();
+ const schemaHashHex = `0x${schemaHashBuffer.toString('hex')}`;
expect(schemaHashHex).to.be.equal(orderSchema);
});
});
describe('getDomainSeparatorSchema', () => {
it('should output the correct domain separator schema hash', async () => {
const domainSeparatorSchema = await libs.getDomainSeparatorSchemaHash.callAsync();
- const domainSchemaBuffer = EIP712Utils.getDomainSeparatorSchemaBuffer();
+ const domainSchemaBuffer = EIP712Utils._getDomainSeparatorSchemaBuffer();
const schemaHashHex = `0x${domainSchemaBuffer.toString('hex')}`;
expect(schemaHashHex).to.be.equal(domainSeparatorSchema);
});
diff --git a/packages/contracts/src/utils/eip712_utils.ts b/packages/order-utils/src/eip712_utils.ts
index 07b45c8af..f7583f8d5 100644
--- a/packages/contracts/src/utils/eip712_utils.ts
+++ b/packages/order-utils/src/eip712_utils.ts
@@ -7,7 +7,8 @@ import { EIP712Schema } from './types';
const EIP191_PREFIX = '\x19\x01';
const EIP712_DOMAIN_NAME = '0x Protocol';
-const EIP712_DOMAIN_VERSION = '1';
+const EIP712_DOMAIN_VERSION = '2';
+const EIP712_VALUE_LENGTH = 32;
const EIP712_DOMAIN_SCHEMA: EIP712Schema = {
name: 'DomainSeparator',
@@ -19,6 +20,11 @@ const EIP712_DOMAIN_SCHEMA: EIP712Schema = {
};
export const EIP712Utils = {
+ /**
+ * Compiles the EIP712Schema and returns the hash of the schema.
+ * @param schema The EIP712 schema.
+ * @return The hash of the compiled schema
+ */
compileSchema(schema: EIP712Schema): Buffer {
const namedTypes = _.map(schema.parameters, parameter => `${parameter.type} ${parameter.name}`);
const namedTypesJoined = namedTypes.join(',');
@@ -26,20 +32,31 @@ export const EIP712Utils = {
const eip712SchemaHashBuffer = crypto.solSHA3([eip712Schema]);
return eip712SchemaHashBuffer;
},
- createEIP712Message(hashStruct: string, contractAddress: string): Buffer {
- const domainSeparatorHashHex = EIP712Utils.getDomainSeparatorHashHex(contractAddress);
- const messageBuff = crypto.solSHA3([
- EIP191_PREFIX,
- new BigNumber(domainSeparatorHashHex),
- new BigNumber(hashStruct),
- ]);
+ /**
+ * Merges the EIP712 hash of a struct with the DomainSeparator for 0x v2.
+ * @param hashStruct the EIP712 hash of a struct
+ * @param contractAddress the exchange contract address
+ * @return The hash of an EIP712 message with domain separator prefixed
+ */
+ createEIP712Message(hashStruct: Buffer, contractAddress: string): Buffer {
+ const domainSeparatorHashBuffer = EIP712Utils._getDomainSeparatorHashBuffer(contractAddress);
+ const messageBuff = crypto.solSHA3([EIP191_PREFIX, domainSeparatorHashBuffer, hashStruct]);
return messageBuff;
},
- getDomainSeparatorSchemaBuffer(): Buffer {
+ pad32Address(address: string): Buffer {
+ const addressBuffer = ethUtil.toBuffer(address);
+ const addressPadded = EIP712Utils.pad32Buffer(addressBuffer);
+ return addressPadded;
+ },
+ pad32Buffer(buffer: Buffer): Buffer {
+ const bufferPadded = ethUtil.setLengthLeft(buffer, EIP712_VALUE_LENGTH);
+ return bufferPadded;
+ },
+ _getDomainSeparatorSchemaBuffer(): Buffer {
return EIP712Utils.compileSchema(EIP712_DOMAIN_SCHEMA);
},
- getDomainSeparatorHashHex(exchangeAddress: string): string {
- const domainSeparatorSchemaBuffer = EIP712Utils.getDomainSeparatorSchemaBuffer();
+ _getDomainSeparatorHashBuffer(exchangeAddress: string): Buffer {
+ const domainSeparatorSchemaBuffer = EIP712Utils._getDomainSeparatorSchemaBuffer();
const nameHash = crypto.solSHA3([EIP712_DOMAIN_NAME]);
const versionHash = crypto.solSHA3([EIP712_DOMAIN_VERSION]);
const domainSeparatorHashBuff = crypto.solSHA3([
@@ -48,16 +65,6 @@ export const EIP712Utils = {
versionHash,
EIP712Utils.pad32Address(exchangeAddress),
]);
- const domainSeparatorHashHex = `0x${domainSeparatorHashBuff.toString('hex')}`;
- return domainSeparatorHashHex;
- },
- pad32Address(address: string): Buffer {
- const addressBuffer = ethUtil.toBuffer(address);
- const addressPadded = EIP712Utils.pad32Buffer(addressBuffer);
- return addressPadded;
- },
- pad32Buffer(buffer: Buffer): Buffer {
- const bufferPadded = ethUtil.setLengthLeft(buffer, 32);
- return bufferPadded;
+ return domainSeparatorHashBuff;
},
};
diff --git a/packages/order-utils/src/index.ts b/packages/order-utils/src/index.ts
index b844fbfcb..caa996621 100644
--- a/packages/order-utils/src/index.ts
+++ b/packages/order-utils/src/index.ts
@@ -4,9 +4,10 @@ export { orderFactory } from './order_factory';
export { constants } from './constants';
export { crypto } from './crypto';
export { generatePseudoRandomSalt } from './salt';
-export { OrderError, MessagePrefixType, MessagePrefixOpts } from './types';
+export { OrderError, MessagePrefixType, MessagePrefixOpts, EIP712Parameter, EIP712Schema } from './types';
export { AbstractBalanceAndProxyAllowanceFetcher } from './abstract/abstract_balance_and_proxy_allowance_fetcher';
export { AbstractOrderFilledCancelledFetcher } from './abstract/abstract_order_filled_cancelled_fetcher';
export { RemainingFillableCalculator } from './remaining_fillable_calculator';
export { OrderStateUtils } from './order_state_utils';
export { assetProxyUtils } from './asset_proxy_utils';
+export { EIP712Utils } from './eip712_utils';
diff --git a/packages/order-utils/src/order_hash.ts b/packages/order-utils/src/order_hash.ts
index 2ef746ef8..b2414febc 100644
--- a/packages/order-utils/src/order_hash.ts
+++ b/packages/order-utils/src/order_hash.ts
@@ -9,9 +9,29 @@ import * as _ from 'lodash';
import { assert } from './assert';
import { crypto } from './crypto';
+import { EIP712Utils } from './eip712_utils';
+import { EIP712Schema } from './types';
const INVALID_TAKER_FORMAT = 'instance.takerAddress is not of a type(s) string';
+const EIP712_ORDER_SCHEMA: EIP712Schema = {
+ name: 'Order',
+ parameters: [
+ { name: 'makerAddress', type: 'address' },
+ { name: 'takerAddress', type: 'address' },
+ { name: 'feeRecipientAddress', type: 'address' },
+ { name: 'senderAddress', type: 'address' },
+ { name: 'makerAssetAmount', type: 'uint256' },
+ { name: 'takerAssetAmount', type: 'uint256' },
+ { name: 'makerFee', type: 'uint256' },
+ { name: 'takerFee', type: 'uint256' },
+ { name: 'expirationTimeSeconds', type: 'uint256' },
+ { name: 'salt', type: 'uint256' },
+ { name: 'makerAssetData', type: 'bytes' },
+ { name: 'takerAssetData', type: 'bytes' },
+ ],
+};
+
export const orderHashUtils = {
/**
* Checks if the supplied hex encoded order hash is valid.
@@ -45,7 +65,7 @@ export const orderHashUtils = {
throw error;
}
- const orderHashBuff = this.getOrderHashBuff(order);
+ const orderHashBuff = orderHashUtils.getOrderHashBuffer(order);
const orderHashHex = `0x${orderHashBuff.toString('hex')}`;
return orderHashHex;
},
@@ -54,15 +74,16 @@ export const orderHashUtils = {
* @param order An object that conforms to the Order or SignedOrder interface definitions.
* @return The resulting orderHash from hashing the supplied order as a Buffer
*/
- getOrderHashBuff(order: SignedOrder | Order): Buffer {
+ getOrderHashBuffer(order: SignedOrder | Order): Buffer {
const makerAssetDataHash = crypto.solSHA3([ethUtil.toBuffer(order.makerAssetData)]);
const takerAssetDataHash = crypto.solSHA3([ethUtil.toBuffer(order.takerAssetData)]);
const orderParamsHashBuff = crypto.solSHA3([
- order.makerAddress,
- order.takerAddress,
- order.feeRecipientAddress,
- order.senderAddress,
+ orderHashUtils._getOrderSchemaBuffer(),
+ EIP712Utils.pad32Address(order.makerAddress),
+ EIP712Utils.pad32Address(order.takerAddress),
+ EIP712Utils.pad32Address(order.feeRecipientAddress),
+ EIP712Utils.pad32Address(order.senderAddress),
order.makerAssetAmount,
order.takerAssetAmount,
order.makerFee,
@@ -72,46 +93,10 @@ export const orderHashUtils = {
makerAssetDataHash,
takerAssetDataHash,
]);
- const orderParamsHashHex = `0x${orderParamsHashBuff.toString('hex')}`;
- const orderSchemaHashHex = this._getOrderSchemaHex();
- const domainSeparatorHashHex = this._getDomainSeparatorHashHex(order.exchangeAddress);
- const domainSeparatorSchemaHex = this._getDomainSeparatorSchemaHex();
- const orderHashBuff = crypto.solSHA3([
- new BigNumber(domainSeparatorSchemaHex),
- new BigNumber(domainSeparatorHashHex),
- new BigNumber(orderSchemaHashHex),
- new BigNumber(orderParamsHashHex),
- ]);
+ const orderHashBuff = EIP712Utils.createEIP712Message(orderParamsHashBuff, order.exchangeAddress);
return orderHashBuff;
},
- _getOrderSchemaHex(): string {
- const orderSchemaHashBuff = crypto.solSHA3([
- 'Order(',
- 'address makerAddress,',
- 'address takerAddress,',
- 'address feeRecipientAddress,',
- 'address senderAddress,',
- 'uint256 makerAssetAmount,',
- 'uint256 takerAssetAmount,',
- 'uint256 makerFee,',
- 'uint256 takerFee,',
- 'uint256 expirationTimeSeconds,',
- 'uint256 salt,',
- 'bytes makerAssetData,',
- 'bytes takerAssetData,',
- ')',
- ]);
- const schemaHashHex = `0x${orderSchemaHashBuff.toString('hex')}`;
- return schemaHashHex;
- },
- _getDomainSeparatorSchemaHex(): string {
- const domainSeparatorSchemaHashBuff = crypto.solSHA3(['DomainSeparator(address contract)']);
- const schemaHashHex = `0x${domainSeparatorSchemaHashBuff.toString('hex')}`;
- return schemaHashHex;
- },
- _getDomainSeparatorHashHex(exchangeAddress: string): string {
- const domainSeparatorHashBuff = crypto.solSHA3([exchangeAddress]);
- const domainSeparatorHashHex = `0x${domainSeparatorHashBuff.toString('hex')}`;
- return domainSeparatorHashHex;
+ _getOrderSchemaBuffer(): Buffer {
+ return EIP712Utils.compileSchema(EIP712_ORDER_SCHEMA);
},
};
diff --git a/packages/order-utils/src/types.ts b/packages/order-utils/src/types.ts
index db0bfb249..858c0e18b 100644
--- a/packages/order-utils/src/types.ts
+++ b/packages/order-utils/src/types.ts
@@ -23,3 +23,13 @@ export interface MessagePrefixOpts {
prefixType: MessagePrefixType;
shouldAddPrefixBeforeCallingEthSign: boolean;
}
+
+export interface EIP712Parameter {
+ name: string;
+ type: string;
+}
+
+export interface EIP712Schema {
+ name: string;
+ parameters: EIP712Parameter[];
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-03 04:39:53 +0800