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Merge pull request #277 from 0xProject/feature/weth-events

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Add etherToken.getLogsAsync and etherToken.subscribe with tests
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Leonid 2017-12-20 15:33:15 +01:00 committed by GitHub
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19 changed files with 1178 additions and 305 deletions
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2
.circleci/config.yml
View File

@ -5,7 +5,7 @@ jobs:
docker:
- image: circleci/node:6.12
environment:
CONTRACTS_COMMIT_HASH: '6bda6a2'
CONTRACTS_COMMIT_HASH: '9ed05f5'
steps:
- checkout
- run: echo 'export PATH=$HOME/CIRCLE_PROJECT_REPONAME/node_modules/.bin:$PATH' >> $BASH_ENV

4
packages/0x.js/CHANGELOG.md
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@ -6,6 +6,10 @@ v0.x.x - _TBD, 2017_
* Removed accidentally included `unsubscribeAll` method from `zeroEx.proxy`, `zeroEx.etherToken` and `zeroEx.tokenRegistry` (#267)
* Removed `etherTokenContractAddress` from `ZeroEx` constructor arg `ZeroExConfig` (#267)
* Rename `SubscriptionOpts` to `BlockRange` (#272)
* Add `zeroEx.etherToken.subscribe`, `zeroEx.etherToken.unsubscribe`, `zeroEx.etherToken.unsubscribeAll` (#277)
* Add `zeroEx.etherToken.getLogsAsync` (#277)
* Add new public types `BlockParamLiteral`, `EtherTokenEvents`, `EtherTokenContractEventArgs`, `DepositContractEventArgs`, `WithdrawalContractEventArgs` (#277)
* Support `Deposit` and `Withdraw` events on etherToken (#277)
* Improve the error message when taker is not a string (#278)
v0.27.1 - _November 28, 2017_

2
packages/0x.js/src/0x.ts
View File

@ -201,7 +201,7 @@ export class ZeroEx {
this._web3Wrapper, config.networkId, config.tokenRegistryContractAddress,
);
this.etherToken = new EtherTokenWrapper(
this._web3Wrapper, config.networkId, this.token,
this._web3Wrapper, config.networkId, this._abiDecoder, this.token,
);
this.orderStateWatcher = new OrderStateWatcher(
this._web3Wrapper, this._abiDecoder, this.token, this.exchange, config.orderWatcherConfig,

38
packages/0x.js/src/artifacts/EtherToken.json
View File

@ -231,17 +231,51 @@
],
"name": "Approval",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"name": "_owner",
"type": "address"
},
{
"indexed": false,
"name": "_value",
"type": "uint256"
}
],
"name": "Deposit",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"name": "_owner",
"type": "address"
},
{
"indexed": false,
"name": "_value",
"type": "uint256"
}
],
"name": "Withdrawal",
"type": "event"
}
],
"networks": {
"1": {
"address": "0x2956356cd2a2bf3202f771f50d3d14a367b48070"
"address": "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2"
},
"3": {
"address": "0xc00fd9820cd2898cc4c054b7bf142de637ad129a"
},
"42": {
"address": "0x05d090b51c40b020eab3bfcb6a2dff130df22e9c"
"address": "0x653e49e301e508a13237c0ddc98ae7d4cd2667a1"
},
"50": {
"address": "0x871dd7c2b4b25e1aa18728e9d5f2af4c4e431f5c"

86
packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts
View File

@ -1,9 +1,20 @@
import {schemas} from '@0xproject/json-schemas';
import {Web3Wrapper} from '@0xproject/web3-wrapper';
import BigNumber from 'bignumber.js';
import * as _ from 'lodash';
import {artifacts} from '../artifacts';
import {TransactionOpts, ZeroExError} from '../types';
import {
BlockRange,
EtherTokenContractEventArgs,
EtherTokenEvents,
EventCallback,
IndexedFilterValues,
LogWithDecodedArgs,
TransactionOpts,
ZeroExError,
} from '../types';
import {AbiDecoder} from '../utils/abi_decoder';
import {assert} from '../utils/assert';
import {ContractWrapper} from './contract_wrapper';
@ -15,10 +26,10 @@ import {TokenWrapper} from './token_wrapper';
* The caller can convert ETH into the equivalent number of wrapped ETH ERC20 tokens and back.
*/
export class EtherTokenWrapper extends ContractWrapper {
private _etherTokenContractIfExists?: EtherTokenContract;
private _etherTokenContractsByAddress: {[address: string]: EtherTokenContract} = {};
private _tokenWrapper: TokenWrapper;
constructor(web3Wrapper: Web3Wrapper, networkId: number, tokenWrapper: TokenWrapper) {
super(web3Wrapper, networkId);
constructor(web3Wrapper: Web3Wrapper, networkId: number, abiDecoder: AbiDecoder, tokenWrapper: TokenWrapper) {
super(web3Wrapper, networkId, abiDecoder);
this._tokenWrapper = tokenWrapper;
}
/**
@ -75,15 +86,76 @@ export class EtherTokenWrapper extends ContractWrapper {
});
return txHash;
}
/**
* Gets historical logs without creating a subscription
* @param etherTokenAddress An address of the ether token that emmited the logs.
* @param eventName The ether token contract event you would like to subscribe to.
* @param blockRange Block range to get logs from.
* @param indexFilterValues An object where the keys are indexed args returned by the event and
* the value is the value you are interested in. E.g `{_owner: aUserAddressHex}`
* @return Array of logs that match the parameters
*/
public async getLogsAsync<ArgsType extends EtherTokenContractEventArgs>(
etherTokenAddress: string, eventName: EtherTokenEvents, blockRange: BlockRange,
indexFilterValues: IndexedFilterValues): Promise<Array<LogWithDecodedArgs<ArgsType>>> {
assert.isETHAddressHex('etherTokenAddress', etherTokenAddress);
assert.doesBelongToStringEnum('eventName', eventName, EtherTokenEvents);
assert.doesConformToSchema('blockRange', blockRange, schemas.blockRangeSchema);
assert.doesConformToSchema('indexFilterValues', indexFilterValues, schemas.indexFilterValuesSchema);
const logs = await this._getLogsAsync<ArgsType>(
etherTokenAddress, eventName, blockRange, indexFilterValues, artifacts.EtherTokenArtifact.abi,
);
return logs;
}
/**
* Subscribe to an event type emitted by the Token contract.
* @param etherTokenAddress The hex encoded address where the ether token is deployed.
* @param eventName The ether token contract event you would like to subscribe to.
* @param indexFilterValues An object where the keys are indexed args returned by the event and
* the value is the value you are interested in. E.g `{_owner: aUserAddressHex}`
* @param callback Callback that gets called when a log is added/removed
* @return Subscription token used later to unsubscribe
*/
public subscribe<ArgsType extends EtherTokenContractEventArgs>(
etherTokenAddress: string, eventName: EtherTokenEvents, indexFilterValues: IndexedFilterValues,
callback: EventCallback<ArgsType>): string {
assert.isETHAddressHex('etherTokenAddress', etherTokenAddress);
assert.doesBelongToStringEnum('eventName', eventName, EtherTokenEvents);
assert.doesConformToSchema('indexFilterValues', indexFilterValues, schemas.indexFilterValuesSchema);
assert.isFunction('callback', callback);
const subscriptionToken = this._subscribe<ArgsType>(
etherTokenAddress, eventName, indexFilterValues, artifacts.EtherTokenArtifact.abi, callback,
);
return subscriptionToken;
}
/**
* Cancel a subscription
* @param subscriptionToken Subscription token returned by `subscribe()`
*/
public unsubscribe(subscriptionToken: string): void {
this._unsubscribe(subscriptionToken);
}
/**
* Cancels all existing subscriptions
*/
public unsubscribeAll(): void {
super.unsubscribeAll();
}
private _invalidateContractInstance(): void {
delete this._etherTokenContractIfExists;
this.unsubscribeAll();
this._etherTokenContractsByAddress = {};
}
private async _getEtherTokenContractAsync(etherTokenAddress: string): Promise<EtherTokenContract> {
let etherTokenContract = this._etherTokenContractsByAddress[etherTokenAddress];
if (!_.isUndefined(etherTokenContract)) {
return etherTokenContract;
}
const web3ContractInstance = await this._instantiateContractIfExistsAsync(
artifacts.EtherTokenArtifact, etherTokenAddress,
);
const contractInstance = new EtherTokenContract(web3ContractInstance, this._web3Wrapper.getContractDefaults());
this._etherTokenContractIfExists = contractInstance;
return this._etherTokenContractIfExists;
etherTokenContract = contractInstance;
this._etherTokenContractsByAddress[etherTokenAddress] = etherTokenContract;
return etherTokenContract;
}
}

5
packages/0x.js/src/index.ts
View File

@ -2,6 +2,7 @@ export {ZeroEx} from './0x';
export {
Order,
BlockParamLiteral,
SignedOrder,
ECSignature,
ZeroExError,
@ -23,10 +24,14 @@ export {
TransferContractEventArgs,
ApprovalContractEventArgs,
TokenContractEventArgs,
EtherTokenContractEventArgs,
WithdrawalContractEventArgs,
DepositContractEventArgs,
ContractEventArgs,
ContractEventArg,
Web3Provider,
ZeroExConfig,
EtherTokenEvents,
TransactionReceiptWithDecodedLogs,
LogWithDecodedArgs,
MethodOpts,

33
packages/0x.js/src/order_watcher/order_state_watcher.ts
View File

@ -12,6 +12,8 @@ import {
ApprovalContractEventArgs,
BlockParamLiteral,
ContractEventArgs,
DepositContractEventArgs,
EtherTokenEvents,
ExchangeContractErrs,
ExchangeEvents,
LogCancelContractEventArgs,
@ -24,6 +26,7 @@ import {
SignedOrder,
TokenEvents,
TransferContractEventArgs,
WithdrawalContractEventArgs,
ZeroExError,
} from '../types';
import {AbiDecoder} from '../utils/abi_decoder';
@ -243,6 +246,36 @@ export class OrderStateWatcher {
}
break;
}
case EtherTokenEvents.Deposit:
{
// Invalidate cache
const args = decodedLog.args as DepositContractEventArgs;
this._balanceAndProxyAllowanceLazyStore.deleteBalance(decodedLog.address, args._owner);
// Revalidate orders
makerToken = decodedLog.address;
makerAddress = args._owner;
if (!_.isUndefined(this._dependentOrderHashes[makerAddress]) &&
!_.isUndefined(this._dependentOrderHashes[makerAddress][makerToken])) {
const orderHashes = Array.from(this._dependentOrderHashes[makerAddress][makerToken]);
await this._emitRevalidateOrdersAsync(orderHashes);
}
break;
}
case EtherTokenEvents.Withdrawal:
{
// Invalidate cache
const args = decodedLog.args as WithdrawalContractEventArgs;
this._balanceAndProxyAllowanceLazyStore.deleteBalance(decodedLog.address, args._owner);
// Revalidate orders
makerToken = decodedLog.address;
makerAddress = args._owner;
if (!_.isUndefined(this._dependentOrderHashes[makerAddress]) &&
!_.isUndefined(this._dependentOrderHashes[makerAddress][makerToken])) {
const orderHashes = Array.from(this._dependentOrderHashes[makerAddress][makerToken]);
await this._emitRevalidateOrdersAsync(orderHashes);
}
break;
}
case ExchangeEvents.LogFill:
{
// Invalidate cache

21
packages/0x.js/src/types.ts
View File

@ -28,6 +28,7 @@ export enum ZeroExError {
export enum InternalZeroExError {
NoAbiDecoder = 'NO_ABI_DECODER',
ZrxNotInTokenRegistry = 'ZRX_NOT_IN_TOKEN_REGISTRY',
WethNotInTokenRegistry = 'WETH_NOT_IN_TOKEN_REGISTRY',
}
/**
@ -146,8 +147,17 @@ export interface ApprovalContractEventArgs {
_spender: string;
_value: BigNumber;
}
export interface DepositContractEventArgs {
_owner: string;
_value: BigNumber;
}
export interface WithdrawalContractEventArgs {
_owner: string;
_value: BigNumber;
}
export type TokenContractEventArgs = TransferContractEventArgs|ApprovalContractEventArgs;
export type ContractEventArgs = ExchangeContractEventArgs|TokenContractEventArgs;
export type EtherTokenContractEventArgs = TokenContractEventArgs|DepositContractEventArgs|WithdrawalContractEventArgs;
export type ContractEventArgs = ExchangeContractEventArgs|TokenContractEventArgs|EtherTokenContractEventArgs;
export type ContractEventArg = string|BigNumber;
export interface Order {
@ -201,7 +211,14 @@ export enum TokenEvents {
Approval = 'Approval',
}
export type ContractEvents = TokenEvents|ExchangeEvents;
export enum EtherTokenEvents {
Transfer = 'Transfer',
Approval = 'Approval',
Deposit = 'Deposit',
Withdrawal = 'Withdrawal',
}
export type ContractEvents = TokenEvents|ExchangeEvents|EtherTokenEvents;
export interface IndexedFilterValues {
[index: string]: ContractEventArg;

229
packages/0x.js/test/ether_token_wrapper_test.ts
View File

@ -4,11 +4,25 @@ import * as chai from 'chai';
import 'mocha';
import * as Web3 from 'web3';
import {ZeroEx, ZeroExError} from '../src';
import {
ApprovalContractEventArgs,
BlockParamLiteral,
BlockRange,
DecodedLogEvent,
DepositContractEventArgs,
EtherTokenEvents,
Token,
TransferContractEventArgs,
WithdrawalContractEventArgs,
ZeroEx,
ZeroExError,
} from '../src';
import {artifacts} from '../src/artifacts';
import {DoneCallback} from '../src/types';
import {chaiSetup} from './utils/chai_setup';
import {constants} from './utils/constants';
import {TokenUtils} from './utils/token_utils';
import {web3Factory} from './utils/web3_factory';
chaiSetup.configure();
@ -24,24 +38,32 @@ const MAX_REASONABLE_GAS_COST_IN_WEI = 62517;
describe('EtherTokenWrapper', () => {
let web3: Web3;
let zeroEx: ZeroEx;
let tokens: Token[];
let userAddresses: string[];
let addressWithETH: string;
let wethContractAddress: string;
let depositWeiAmount: BigNumber;
let decimalPlaces: number;
let addressWithoutFunds: string;
const gasPrice = new BigNumber(1);
const zeroExConfig = {
gasPrice,
networkId: constants.TESTRPC_NETWORK_ID,
};
const transferAmount = new BigNumber(42);
const allowanceAmount = new BigNumber(42);
const depositAmount = new BigNumber(42);
const withdrawalAmount = new BigNumber(42);
before(async () => {
web3 = web3Factory.create();
zeroEx = new ZeroEx(web3.currentProvider, zeroExConfig);
tokens = await zeroEx.tokenRegistry.getTokensAsync();
userAddresses = await zeroEx.getAvailableAddressesAsync();
addressWithETH = userAddresses[0];
wethContractAddress = (zeroEx.etherToken as any)._getContractAddress(artifacts.EtherTokenArtifact);
depositWeiAmount = (zeroEx as any)._web3Wrapper.toWei(new BigNumber(5));
decimalPlaces = 7;
addressWithoutFunds = userAddresses[1];
});
beforeEach(async () => {
await blockchainLifecycle.startAsync();
@ -113,4 +135,209 @@ describe('EtherTokenWrapper', () => {
).to.be.rejectedWith(ZeroExError.InsufficientWEthBalanceForWithdrawal);
});
});
describe('#subscribe', () => {
const indexFilterValues = {};
let etherTokenAddress: string;
before(() => {
const tokenUtils = new TokenUtils(tokens);
const etherToken = tokenUtils.getWethTokenOrThrow();
etherTokenAddress = etherToken.address;
});
afterEach(() => {
zeroEx.etherToken.unsubscribeAll();
});
// Hack: Mocha does not allow a test to be both async and have a `done` callback
// Since we need to await the receipt of the event in the `subscribe` callback,
// we do need both. A hack is to make the top-level async fn w/ a done callback and then
// wrap the rest of the test in an async block
// Source: https://github.com/mochajs/mocha/issues/2407
it('Should receive the Transfer event when tokens are transfered', (done: DoneCallback) => {
(async () => {
const callback = (err: Error, logEvent: DecodedLogEvent<TransferContractEventArgs>) => {
expect(err).to.be.null();
expect(logEvent).to.not.be.undefined();
expect(logEvent.isRemoved).to.be.false();
expect(logEvent.log.logIndex).to.be.equal(0);
expect(logEvent.log.transactionIndex).to.be.equal(0);
expect(logEvent.log.blockNumber).to.be.a('number');
const args = logEvent.log.args;
expect(args._from).to.be.equal(addressWithETH);
expect(args._to).to.be.equal(addressWithoutFunds);
expect(args._value).to.be.bignumber.equal(transferAmount);
done();
};
await zeroEx.etherToken.depositAsync(etherTokenAddress, transferAmount, addressWithETH);
zeroEx.etherToken.subscribe(
etherTokenAddress, EtherTokenEvents.Transfer, indexFilterValues, callback);
await zeroEx.token.transferAsync(
etherTokenAddress, addressWithETH, addressWithoutFunds, transferAmount,
);
})().catch(done);
});
it('Should receive the Approval event when allowance is being set', (done: DoneCallback) => {
(async () => {
const callback = (err: Error, logEvent: DecodedLogEvent<ApprovalContractEventArgs>) => {
expect(err).to.be.null();
expect(logEvent).to.not.be.undefined();
expect(logEvent.isRemoved).to.be.false();
const args = logEvent.log.args;
expect(args._owner).to.be.equal(addressWithETH);
expect(args._spender).to.be.equal(addressWithoutFunds);
expect(args._value).to.be.bignumber.equal(allowanceAmount);
done();
};
zeroEx.etherToken.subscribe(
etherTokenAddress, EtherTokenEvents.Approval, indexFilterValues, callback);
await zeroEx.token.setAllowanceAsync(
etherTokenAddress, addressWithETH, addressWithoutFunds, allowanceAmount,
);
})().catch(done);
});
it('Should receive the Deposit event when ether is being deposited', (done: DoneCallback) => {
(async () => {
const callback = (err: Error, logEvent: DecodedLogEvent<DepositContractEventArgs>) => {
expect(err).to.be.null();
expect(logEvent).to.not.be.undefined();
expect(logEvent.isRemoved).to.be.false();
const args = logEvent.log.args;
expect(args._owner).to.be.equal(addressWithETH);
expect(args._value).to.be.bignumber.equal(depositAmount);
done();
};
zeroEx.etherToken.subscribe(
etherTokenAddress, EtherTokenEvents.Deposit, indexFilterValues, callback);
await zeroEx.etherToken.depositAsync(
etherTokenAddress, depositAmount, addressWithETH,
);
})().catch(done);
});
it('Should receive the Withdrawal event when ether is being withdrawn', (done: DoneCallback) => {
(async () => {
const callback = (err: Error, logEvent: DecodedLogEvent<WithdrawalContractEventArgs>) => {
expect(err).to.be.null();
expect(logEvent).to.not.be.undefined();
expect(logEvent.isRemoved).to.be.false();
const args = logEvent.log.args;
expect(args._owner).to.be.equal(addressWithETH);
expect(args._value).to.be.bignumber.equal(depositAmount);
done();
};
await zeroEx.etherToken.depositAsync(
etherTokenAddress, depositAmount, addressWithETH,
);
zeroEx.etherToken.subscribe(
etherTokenAddress, EtherTokenEvents.Withdrawal, indexFilterValues, callback);
await zeroEx.etherToken.withdrawAsync(
etherTokenAddress, withdrawalAmount, addressWithETH,
);
})().catch(done);
});
it('should cancel outstanding subscriptions when ZeroEx.setProvider is called', (done: DoneCallback) => {
(async () => {
const callbackNeverToBeCalled = (err: Error, logEvent: DecodedLogEvent<ApprovalContractEventArgs>) => {
done(new Error('Expected this subscription to have been cancelled'));
};
zeroEx.etherToken.subscribe(
etherTokenAddress, EtherTokenEvents.Transfer, indexFilterValues, callbackNeverToBeCalled,
);
const callbackToBeCalled = (err: Error, logEvent: DecodedLogEvent<ApprovalContractEventArgs>) => {
done();
};
const newProvider = web3Factory.getRpcProvider();
zeroEx.setProvider(newProvider, constants.TESTRPC_NETWORK_ID);
await zeroEx.etherToken.depositAsync(etherTokenAddress, transferAmount, addressWithETH);
zeroEx.etherToken.subscribe(
etherTokenAddress, EtherTokenEvents.Transfer, indexFilterValues, callbackToBeCalled,
);
await zeroEx.token.transferAsync(
etherTokenAddress, addressWithETH, addressWithoutFunds, transferAmount,
);
})().catch(done);
});
it('Should cancel subscription when unsubscribe called', (done: DoneCallback) => {
(async () => {
const callbackNeverToBeCalled = (err: Error, logEvent: DecodedLogEvent<ApprovalContractEventArgs>) => {
done(new Error('Expected this subscription to have been cancelled'));
};
await zeroEx.etherToken.depositAsync(etherTokenAddress, transferAmount, addressWithETH);
const subscriptionToken = zeroEx.etherToken.subscribe(
etherTokenAddress, EtherTokenEvents.Transfer, indexFilterValues, callbackNeverToBeCalled);
zeroEx.etherToken.unsubscribe(subscriptionToken);
await zeroEx.token.transferAsync(
etherTokenAddress, addressWithETH, addressWithoutFunds, transferAmount,
);
done();
})().catch(done);
});
});
describe('#getLogsAsync', () => {
let etherTokenAddress: string;
let tokenTransferProxyAddress: string;
const blockRange: BlockRange = {
fromBlock: 0,
toBlock: BlockParamLiteral.Latest,
};
let txHash: string;
before(() => {
addressWithETH = userAddresses[0];
const tokenUtils = new TokenUtils(tokens);
const etherToken = tokenUtils.getWethTokenOrThrow();
etherTokenAddress = etherToken.address;
tokenTransferProxyAddress = zeroEx.proxy.getContractAddress();
});
it('should get logs with decoded args emitted by Approval', async () => {
txHash = await zeroEx.token.setUnlimitedProxyAllowanceAsync(etherTokenAddress, addressWithETH);
await zeroEx.awaitTransactionMinedAsync(txHash);
const eventName = EtherTokenEvents.Approval;
const indexFilterValues = {};
const logs = await zeroEx.etherToken.getLogsAsync<ApprovalContractEventArgs>(
etherTokenAddress, eventName, blockRange, indexFilterValues,
);
expect(logs).to.have.length(1);
const args = logs[0].args;
expect(logs[0].event).to.be.equal(eventName);
expect(args._owner).to.be.equal(addressWithETH);
expect(args._spender).to.be.equal(tokenTransferProxyAddress);
expect(args._value).to.be.bignumber.equal(zeroEx.token.UNLIMITED_ALLOWANCE_IN_BASE_UNITS);
});
it('should get logs with decoded args emitted by Deposit', async () => {
await zeroEx.etherToken.depositAsync(etherTokenAddress, depositAmount, addressWithETH);
const eventName = EtherTokenEvents.Deposit;
const indexFilterValues = {};
const logs = await zeroEx.etherToken.getLogsAsync<DepositContractEventArgs>(
etherTokenAddress, eventName, blockRange, indexFilterValues,
);
expect(logs).to.have.length(1);
const args = logs[0].args;
expect(logs[0].event).to.be.equal(eventName);
expect(args._owner).to.be.equal(addressWithETH);
expect(args._value).to.be.bignumber.equal(depositAmount);
});
it('should only get the logs with the correct event name', async () => {
txHash = await zeroEx.token.setUnlimitedProxyAllowanceAsync(etherTokenAddress, addressWithETH);
await zeroEx.awaitTransactionMinedAsync(txHash);
const differentEventName = EtherTokenEvents.Transfer;
const indexFilterValues = {};
const logs = await zeroEx.etherToken.getLogsAsync(
etherTokenAddress, differentEventName, blockRange, indexFilterValues,
);
expect(logs).to.have.length(0);
});
it('should only get the logs with the correct indexed fields', async () => {
txHash = await zeroEx.token.setUnlimitedProxyAllowanceAsync(etherTokenAddress, addressWithETH);
await zeroEx.awaitTransactionMinedAsync(txHash);
txHash = await zeroEx.token.setUnlimitedProxyAllowanceAsync(etherTokenAddress, addressWithoutFunds);
await zeroEx.awaitTransactionMinedAsync(txHash);
const eventName = EtherTokenEvents.Approval;
const indexFilterValues = {
_owner: addressWithETH,
};
const logs = await zeroEx.etherToken.getLogsAsync<ApprovalContractEventArgs>(
etherTokenAddress, eventName, blockRange, indexFilterValues,
);
expect(logs).to.have.length(1);
const args = logs[0].args;
expect(args._owner).to.be.equal(addressWithETH);
});
});
});

3
packages/0x.js/test/token_wrapper_test.ts
View File

@ -7,6 +7,7 @@ import * as Web3 from 'web3';
import {
ApprovalContractEventArgs,
BlockParamLiteral,
BlockRange,
DecodedLogEvent,
Token,
@ -15,7 +16,7 @@ import {
ZeroEx,
ZeroExError,
} from '../src';
import {BlockParamLiteral, DoneCallback} from '../src/types';
import {DoneCallback} from '../src/types';
import {chaiSetup} from './utils/chai_setup';
import {constants} from './utils/constants';

7
packages/0x.js/test/utils/token_utils.ts
View File

@ -17,6 +17,13 @@ export class TokenUtils {
}
return zrxToken;
}
public getWethTokenOrThrow(): Token {
const wethToken = _.find(this.tokens, {symbol: WETH_TOKEN_SYMBOL});
if (_.isUndefined(wethToken)) {
throw new Error(InternalZeroExError.WethNotInTokenRegistry);
}
return wethToken;
}
public getDummyTokens(): Token[] {
const dummyTokens = _.filter(this.tokens, token => {
return !_.includes([PROTOCOL_TOKEN_SYMBOL, WETH_TOKEN_SYMBOL], token.symbol);

57
packages/contracts/contracts/tokens/EtherToken.sol
View File

@ -1,57 +0,0 @@
/*
Copyright 2017 ZeroEx Intl.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
pragma solidity ^0.4.11;
import "./UnlimitedAllowanceToken.sol";
import "./../utils/SafeMath.sol";
contract EtherToken is UnlimitedAllowanceToken, SafeMath {
string constant public name = "Ether Token";
string constant public symbol = "WETH";
uint8 constant public decimals = 18;
/// @dev Fallback to calling deposit when ether is sent directly to contract.
function()
public
payable
{
deposit();
}
/// @dev Buys tokens with Ether, exchanging them 1:1.
function deposit()
public
payable
{
balances[msg.sender] = safeAdd(balances[msg.sender], msg.value);
totalSupply = safeAdd(totalSupply, msg.value);
}
/// @dev Sells tokens in exchange for Ether, exchanging them 1:1.
/// @param amount Number of tokens to sell.
function withdraw(uint amount)
public
{
balances[msg.sender] = safeSub(balances[msg.sender], amount);
totalSupply = safeSub(totalSupply, amount);
require(msg.sender.send(amount));
}
}

60
packages/contracts/contracts/tokens/EtherToken_v2.sol
View File

@ -1,60 +0,0 @@
/*
Copyright 2017 ZeroEx Intl.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
pragma solidity 0.4.18;
import "./UnlimitedAllowanceToken_v2.sol";
import "./../utils/SafeMath_v2.sol";
contract EtherToken_v2 is UnlimitedAllowanceToken_v2, SafeMath_v2 {
string constant public name = "Ether Token";
string constant public symbol = "WETH";
string constant public version = "2.0.0"; // version 1.0.0 deployed on mainnet at 0x2956356cd2a2bf3202f771f50d3d14a367b48070
uint8 constant public decimals = 18;
/// @dev Fallback to calling deposit when ether is sent directly to contract.
function()
public
payable
{
deposit();
}
/// @dev Buys tokens with Ether, exchanging them 1:1.
function deposit()
public
payable
{
balances[msg.sender] = safeAdd(balances[msg.sender], msg.value);
totalSupply = safeAdd(totalSupply, msg.value);
Transfer(address(0), msg.sender, msg.value);
}
/// @dev Sells tokens in exchange for Ether, exchanging them 1:1.
/// @param _value Number of tokens to sell.
function withdraw(uint _value)
public
{
balances[msg.sender] = safeSub(balances[msg.sender], _value);
totalSupply = safeSub(totalSupply, _value);
require(msg.sender.send(_value));
Transfer(msg.sender, address(0), _value);
}
}

756
packages/contracts/contracts/tokens/WETH9.sol Normal file
View File

@ -0,0 +1,756 @@
// Copyright (C) 2015, 2016, 2017 Dapphub
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
pragma solidity ^0.4.18;
contract WETH9 {
string public name = "Wrapped Ether";
string public symbol = "WETH";
uint8 public decimals = 18;
event Approval(address indexed src, address indexed guy, uint wad);
event Transfer(address indexed src, address indexed dst, uint wad);
event Deposit(address indexed dst, uint wad);
event Withdrawal(address indexed src, uint wad);
mapping (address => uint) public balanceOf;
mapping (address => mapping (address => uint)) public allowance;
function() public payable {
deposit();
}
function deposit() public payable {
balanceOf[msg.sender] += msg.value;
Deposit(msg.sender, msg.value);
}
function withdraw(uint wad) public {
require(balanceOf[msg.sender] >= wad);
balanceOf[msg.sender] -= wad;
msg.sender.transfer(wad);
Withdrawal(msg.sender, wad);
}
function totalSupply() public view returns (uint) {
return this.balance;
}
function approve(address guy, uint wad) public returns (bool) {
allowance[msg.sender][guy] = wad;
Approval(msg.sender, guy, wad);
return true;
}
function transfer(address dst, uint wad) public returns (bool) {
return transferFrom(msg.sender, dst, wad);
}
function transferFrom(address src, address dst, uint wad)
public
returns (bool)
{
require(balanceOf[src] >= wad);
if (src != msg.sender && allowance[src][msg.sender] != uint(-1)) {
require(allowance[src][msg.sender] >= wad);
allowance[src][msg.sender] -= wad;
}
balanceOf[src] -= wad;
balanceOf[dst] += wad;
Transfer(src, dst, wad);
return true;
}
}
/*
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public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.
Later license versions may give you additional or different
permissions. However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
*/

2
packages/contracts/deploy/migrations/migrate.ts
View File

@ -19,7 +19,7 @@ export const migrator = {
const tokenTransferProxy = await deployer.deployAndSaveAsync('TokenTransferProxy');
const zrxToken = await deployer.deployAndSaveAsync('ZRXToken');
const etherToken = await deployer.deployAndSaveAsync('EtherToken');
const etherToken = await deployer.deployAndSaveAsync('WETH9');
const tokenReg = await deployer.deployAndSaveAsync('TokenRegistry');
const exchangeArgs = [zrxToken.address, tokenTransferProxy.address];

3
packages/contracts/migrations/2_deploy_independent_contracts.ts
View File

@ -4,7 +4,6 @@ const {
MultiSigWalletWithTimeLock,
TokenTransferProxy,
EtherToken,
EtherTokenV2,
TokenRegistry,
} = new Artifacts(artifacts);
@ -34,8 +33,6 @@ module.exports = (deployer: any, network: string, accounts: string[]) => {
return deployer.deploy(TokenRegistry);
}).then(() => {
return deployer.deploy(EtherToken);
}).then(() => {
return deployer.deploy(EtherTokenV2);
});
} else {
deployer.deploy([

166
packages/contracts/test/ts/ether_token_v2.ts
View File

@ -1,166 +0,0 @@
import {ZeroEx, ZeroExError} from '0x.js';
import {promisify} from '@0xproject/utils';
import {BigNumber} from 'bignumber.js';
import * as chai from 'chai';
import Web3 = require('web3');
import {Artifacts} from '../../util/artifacts';
import {constants} from '../../util/constants';
import {chaiSetup} from './utils/chai_setup';
const {EtherTokenV2} = new Artifacts(artifacts);
chaiSetup.configure();
const expect = chai.expect;
// In order to benefit from type-safety, we re-assign the global web3 instance injected by Truffle
// with type `any` to a variable of type `Web3`.
const web3: Web3 = (global as any).web3;
contract('EtherTokenV2', (accounts: string[]) => {
const account = accounts[0];
const gasPrice = ZeroEx.toBaseUnitAmount(new BigNumber(20), 9);
let zeroEx: ZeroEx;
let etherTokenAddress: string;
beforeEach(async () => {
const etherToken = await EtherTokenV2.new();
etherTokenAddress = etherToken.address;
zeroEx = new ZeroEx(web3.currentProvider, {
gasPrice,
networkId: constants.TESTRPC_NETWORK_ID,
});
});
const sendTransactionAsync = promisify<string>(web3.eth.sendTransaction);
const getEthBalanceAsync = async (owner: string) => {
const balanceStr = await promisify<string>(web3.eth.getBalance)(owner);
const balance = new BigNumber(balanceStr);
return balance;
};
describe('deposit', () => {
it('should throw if caller attempts to deposit more Ether than caller balance', async () => {
const initEthBalance = await getEthBalanceAsync(account);
const ethToDeposit = initEthBalance.plus(1);
return expect(zeroEx.etherToken.depositAsync(etherTokenAddress, ethToDeposit, account))
.to.be.rejectedWith(ZeroExError.InsufficientEthBalanceForDeposit);
});
it('should convert deposited Ether to wrapped Ether tokens', async () => {
const initEthBalance = await getEthBalanceAsync(account);
const initEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
const ethToDeposit = new BigNumber(web3.toWei(1, 'ether'));
const txHash = await zeroEx.etherToken.depositAsync(etherTokenAddress, ethToDeposit, account);
const receipt = await zeroEx.awaitTransactionMinedAsync(txHash);
const ethSpentOnGas = gasPrice.times(receipt.gasUsed);
const finalEthBalance = await getEthBalanceAsync(account);
const finalEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
expect(finalEthBalance).to.be.bignumber.equal(initEthBalance.minus(ethToDeposit.plus(ethSpentOnGas)));
expect(finalEthTokenBalance).to.be.bignumber.equal(initEthTokenBalance.plus(ethToDeposit));
});
it('should log 1 event with correct arguments', async () => {
const ethToDeposit = new BigNumber(web3.toWei(1, 'ether'));
const txHash = await zeroEx.etherToken.depositAsync(etherTokenAddress, ethToDeposit, account);
const receipt = await zeroEx.awaitTransactionMinedAsync(txHash);
const logs = receipt.logs;
expect(logs.length).to.equal(1);
const expectedFrom = ZeroEx.NULL_ADDRESS;
const expectedTo = account;
const expectedValue = ethToDeposit;
const logArgs = (logs[0] as any).args;
expect(logArgs._from).to.equal(expectedFrom);
expect(logArgs._to).to.equal(expectedTo);
expect(logArgs._value).to.be.bignumber.equal(expectedValue);
});
});
describe('withdraw', () => {
beforeEach(async () => {
const ethToDeposit = new BigNumber(web3.toWei(1, 'ether'));
await zeroEx.etherToken.depositAsync(etherTokenAddress, ethToDeposit, account);
});
it('should throw if caller attempts to withdraw greater than caller balance', async () => {
const initEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
const ethTokensToWithdraw = initEthTokenBalance.plus(1);
return expect(zeroEx.etherToken.withdrawAsync(etherTokenAddress, ethTokensToWithdraw, account))
.to.be.rejectedWith(ZeroExError.InsufficientWEthBalanceForWithdrawal);
});
it('should convert ether tokens to ether with sufficient balance', async () => {
const initEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
const initEthBalance = await getEthBalanceAsync(account);
const ethTokensToWithdraw = initEthTokenBalance;
expect(ethTokensToWithdraw).to.not.be.bignumber.equal(0);
const txHash = await zeroEx.etherToken.withdrawAsync(etherTokenAddress, ethTokensToWithdraw, account, {
gasLimit: constants.MAX_ETHERTOKEN_WITHDRAW_GAS,
});
const receipt = await zeroEx.awaitTransactionMinedAsync(txHash);
const ethSpentOnGas = gasPrice.times(receipt.gasUsed);
const finalEthBalance = await getEthBalanceAsync(account);
const finalEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
expect(finalEthBalance).to.be.bignumber
.equal(initEthBalance.plus(ethTokensToWithdraw.minus(ethSpentOnGas)));
expect(finalEthTokenBalance).to.be.bignumber.equal(initEthTokenBalance.minus(ethTokensToWithdraw));
});
it('should log 1 event with correct arguments', async () => {
const initEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
const ethTokensToWithdraw = initEthTokenBalance;
expect(ethTokensToWithdraw).to.not.be.bignumber.equal(0);
const txHash = await zeroEx.etherToken.withdrawAsync(etherTokenAddress, ethTokensToWithdraw, account, {
gasLimit: constants.MAX_ETHERTOKEN_WITHDRAW_GAS,
});
const receipt = await zeroEx.awaitTransactionMinedAsync(txHash);
const logs = receipt.logs;
expect(logs.length).to.equal(1);
const expectedFrom = account;
const expectedTo = ZeroEx.NULL_ADDRESS;
const expectedValue = ethTokensToWithdraw;
const logArgs = (logs[0] as any).args;
expect(logArgs._from).to.equal(expectedFrom);
expect(logArgs._to).to.equal(expectedTo);
expect(logArgs._value).to.be.bignumber.equal(expectedValue);
});
});
describe('fallback', () => {
it('should convert sent ether to ether tokens', async () => {
const initEthBalance = await getEthBalanceAsync(account);
const initEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
const ethToDeposit = ZeroEx.toBaseUnitAmount(new BigNumber(1), 18);
const txHash = await sendTransactionAsync({
from: account,
to: etherTokenAddress,
value: ethToDeposit,
gasPrice,
});
const receipt = await zeroEx.awaitTransactionMinedAsync(txHash);
const ethSpentOnGas = gasPrice.times(receipt.gasUsed);
const finalEthBalance = await getEthBalanceAsync(account);
const finalEthTokenBalance = await zeroEx.token.getBalanceAsync(etherTokenAddress, account);
expect(finalEthBalance).to.be.bignumber.equal(initEthBalance.minus(ethToDeposit.plus(ethSpentOnGas)));
expect(finalEthTokenBalance).to.be.bignumber.equal(initEthTokenBalance.plus(ethToDeposit));
});
});
});

4
packages/contracts/util/artifacts.ts
View File

@ -8,7 +8,6 @@ export class Artifacts {
public DummyToken: any;
public DummyTokenV2: any;
public EtherToken: any;
public EtherTokenV2: any;
public MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress: any;
public MaliciousToken: any;
constructor(artifacts: any) {
@ -20,8 +19,7 @@ export class Artifacts {
this.ZRXToken = artifacts.require('ZRXToken');
this.DummyToken = artifacts.require('DummyToken');
this.DummyTokenV2 = artifacts.require('DummyToken_v2');
this.EtherToken = artifacts.require('EtherToken');
this.EtherTokenV2 = artifacts.require('EtherToken_v2');
this.EtherToken = artifacts.require('WETH9');
this.MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress = artifacts.require(
'MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress');
this.MaliciousToken = artifacts.require('MaliciousToken');

5
packages/website/ts/containers/zero_ex_js_documentation.tsx
View File

@ -108,6 +108,9 @@ const docsInfoConfig: DocsInfoConfig = {
'LogErrorContractEventArgs',
'LogFillContractEventArgs',
'LogCancelContractEventArgs',
'EtherTokenContractEventArgs',
'WithdrawalContractEventArgs',
'DepositContractEventArgs',
'TokenEvents',
'ExchangeContractEventArgs',
'TransferContractEventArgs',
@ -116,6 +119,8 @@ const docsInfoConfig: DocsInfoConfig = {
'ZeroExConfig',
'TransactionReceiptWithDecodedLogs',
'LogWithDecodedArgs',
'EtherTokenEvents',
'BlockParamLiteral',
'DecodedLogArgs',
'MethodOpts',
'ValidateOrderFillableOpts',