Update Order utils to use eip712

1 files changed, 2 insertions, 54 deletions

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),