protocol/contracts/exchange/test/signature_validator.ts

1293 lines
64 KiB
TypeScript

import { encodeERC20AssetData, ERC20ProxyContract, ERC20Wrapper } from '@0x/contracts-asset-proxy';
import { DummyERC20TokenContract } from '@0x/contracts-erc20';
import {
blockchainTests,
constants,
expect,
LogDecoder,
OrderFactory,
orderHashUtils,
orderUtils,
randomAddress,
TransactionFactory,
transactionHashUtils,
} from '@0x/contracts-test-utils';
import { SignatureType, SignedOrder, SignedZeroExTransaction } from '@0x/types';
import { BigNumber, ExchangeRevertErrors, hexUtils, StringRevertError } from '@0x/utils';
import { LogWithDecodedArgs } from 'ethereum-types';
import ethUtil = require('ethereumjs-util');
import { artifacts } from './artifacts';
import {
ExchangeContract,
ExchangeSignatureValidatorApprovalEventArgs,
IEIP1271DataContract,
TestValidatorWalletContract,
} from './wrappers';
enum ValidatorWalletAction {
Reject = 0,
Accept = 1,
Revert = 2,
UpdateState = 3,
MatchSignatureHash = 4,
ReturnTrue = 5,
ReturnNothing = 6,
NTypes = 7,
}
// tslint:disable:no-unnecessary-type-assertion
blockchainTests.resets('MixinSignatureValidator', env => {
let chainId: number;
let exchange: ExchangeContract;
let validatorWallet: TestValidatorWalletContract;
let validatorWalletRevertReason: string;
let signerAddress: string;
let signerPrivateKey: Buffer;
let notSignerAddress: string;
let accounts: string[];
let owner: string;
let makerAddress: string;
let takerAddress: string;
let feeRecipientAddress: string;
const eip1271Data = new IEIP1271DataContract(constants.NULL_ADDRESS, env.provider, env.txDefaults);
before(async () => {
chainId = await env.getChainIdAsync();
accounts = await env.getAccountAddressesAsync();
[owner, signerAddress, notSignerAddress, makerAddress, takerAddress, feeRecipientAddress] = accounts;
exchange = await ExchangeContract.deployFrom0xArtifactAsync(
artifacts.Exchange,
env.provider,
env.txDefaults,
{},
new BigNumber(chainId),
);
validatorWallet = await TestValidatorWalletContract.deployFrom0xArtifactAsync(
artifacts.TestValidatorWallet,
env.provider,
env.txDefaults,
{},
exchange.address,
);
validatorWalletRevertReason = await validatorWallet.REVERT_REASON().callAsync();
// Approve the validator for both signers.
await Promise.all(
[signerAddress, notSignerAddress].map(async (addr: string) => {
return exchange
.setSignatureValidatorApproval(validatorWallet.address, true)
.awaitTransactionSuccessAsync({ from: addr });
}),
);
signerPrivateKey = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(signerAddress)];
});
const SIGNATURE_LENGTH = 65;
const generateRandomSignature = (): string => hexUtils.random(SIGNATURE_LENGTH);
const hashBytes = (bytesHex: string): string => ethUtil.bufferToHex(ethUtil.sha3(ethUtil.toBuffer(bytesHex)));
const signDataHex = (dataHex: string, privateKey: Buffer): string => {
const ecSignature = ethUtil.ecsign(ethUtil.toBuffer(dataHex), privateKey);
return hexUtils.concat(ecSignature.v, ecSignature.r, ecSignature.s);
};
type ValidateHashSignatureAsync = (
hashHex: string,
signerAddress: string,
signatureHex: string,
validatorAction?: ValidatorWalletAction,
validatorExpectedSignatureHex?: string,
) => Promise<any>;
const createHashSignatureTests = (
getCurrentHashHex: (signerAddress?: string) => string,
validateAsync: ValidateHashSignatureAsync,
) => {
it('should revert when signature is empty', async () => {
const hashHex = getCurrentHashHex();
const emptySignature = constants.NULL_BYTES;
const expectedError = new ExchangeRevertErrors.SignatureError(
ExchangeRevertErrors.SignatureErrorCode.InvalidLength,
hashHex,
signerAddress,
emptySignature,
);
const tx = validateAsync(hashHex, signerAddress, emptySignature);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when signature type is unsupported', async () => {
const hashHex = getCurrentHashHex();
const signatureHex = hexUtils.concat(SignatureType.NSignatureTypes);
const expectedError = new ExchangeRevertErrors.SignatureError(
ExchangeRevertErrors.SignatureErrorCode.Unsupported,
hashHex,
signerAddress,
signatureHex,
);
const tx = validateAsync(hashHex, signerAddress, signatureHex);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when SignatureType=Illegal', async () => {
const hashHex = getCurrentHashHex();
const signatureHex = hexUtils.concat(SignatureType.Illegal);
const expectedError = new ExchangeRevertErrors.SignatureError(
ExchangeRevertErrors.SignatureErrorCode.Illegal,
hashHex,
signerAddress,
signatureHex,
);
const tx = validateAsync(hashHex, signerAddress, signatureHex);
return expect(tx).to.revertWith(expectedError);
});
it('should return false when SignatureType=Invalid and signature has a length of zero', async () => {
const hashHex = getCurrentHashHex();
const signatureHex = hexUtils.concat(SignatureType.Invalid);
const isValidSignature = await validateAsync(hashHex, signerAddress, signatureHex);
expect(isValidSignature).to.be.false();
});
it('should revert when SignatureType=Invalid and signature length is non-zero', async () => {
const hashHex = getCurrentHashHex();
const signatureHex = hexUtils.concat('0xdeadbeef', SignatureType.Invalid);
const expectedError = new ExchangeRevertErrors.SignatureError(
ExchangeRevertErrors.SignatureErrorCode.InvalidLength,
hashHex,
signerAddress,
signatureHex,
);
const tx = validateAsync(hashHex, signerAddress, signatureHex);
return expect(tx).to.revertWith(expectedError);
});
it('should return true when SignatureType=EIP712 and signature is valid', async () => {
const hashHex = getCurrentHashHex();
const signatureHex = hexUtils.concat(signDataHex(hashHex, signerPrivateKey), SignatureType.EIP712);
const isValidSignature = await validateAsync(hashHex, signerAddress, signatureHex);
expect(isValidSignature).to.be.true();
});
it('should return false when SignatureType=EIP712 and signature is invalid', async () => {
const hashHex = getCurrentHashHex();
const signatureHex = hexUtils.concat(generateRandomSignature(), SignatureType.EIP712);
const isValidSignature = await validateAsync(hashHex, signerAddress, signatureHex);
expect(isValidSignature).to.be.false();
});
it('should return true when SignatureType=EthSign and signature is valid', async () => {
// Create EthSign signature
const hashHex = getCurrentHashHex();
const orderHashWithEthSignPrefixHex = ethUtil.bufferToHex(
ethUtil.hashPersonalMessage(ethUtil.toBuffer(hashHex)),
);
const signatureHex = hexUtils.concat(
signDataHex(orderHashWithEthSignPrefixHex, signerPrivateKey),
SignatureType.EthSign,
);
const isValidSignature = await validateAsync(hashHex, signerAddress, signatureHex);
expect(isValidSignature).to.be.true();
});
it('should return false when SignatureType=EthSign and signature is invalid', async () => {
const hashHex = getCurrentHashHex();
// Create EthSign signature
const signatureHex = hexUtils.concat(generateRandomSignature(), SignatureType.EthSign);
const isValidSignature = await validateAsync(hashHex, signerAddress, signatureHex);
expect(isValidSignature).to.be.false();
});
it('should return true when SignatureType=Wallet and signature is valid', async () => {
const hashHex = getCurrentHashHex(validatorWallet.address);
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, SignatureType.Wallet);
const isValidSignature = await validateAsync(
hashHex,
validatorWallet.address,
signatureHex,
ValidatorWalletAction.MatchSignatureHash,
signatureDataHex,
);
expect(isValidSignature).to.be.true();
});
it('should return false when SignatureType=Wallet and signature is invalid', async () => {
const hashHex = getCurrentHashHex(validatorWallet.address);
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureDataHex = generateRandomSignature();
const notSignatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(notSignatureDataHex, SignatureType.Wallet);
// Validate signature
const isValidSignature = await validateAsync(
hashHex,
validatorWallet.address,
signatureHex,
ValidatorWalletAction.MatchSignatureHash,
signatureDataHex,
);
expect(isValidSignature).to.be.false();
});
it('should revert when validator attempts to update state and SignatureType=Wallet', async () => {
const hashHex = getCurrentHashHex(validatorWallet.address);
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureHex = hexUtils.concat(generateRandomSignature(), SignatureType.Wallet);
const expectedError = new ExchangeRevertErrors.SignatureWalletError(
hashHex,
validatorWallet.address,
signatureHex,
constants.NULL_BYTES,
);
const tx = validateAsync(hashHex, validatorWallet.address, signatureHex, ValidatorWalletAction.UpdateState);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when signer is an EOA and SignatureType=Wallet', async () => {
const hashHex = getCurrentHashHex();
const signatureHex = hexUtils.concat(SignatureType.Wallet);
const expectedError = new ExchangeRevertErrors.SignatureWalletError(
hashHex,
signerAddress,
signatureHex,
constants.NULL_BYTES,
);
const tx = validateAsync(hashHex, signerAddress, signatureHex);
return expect(tx).to.revertWith(expectedError);
});
it('should return false when validator returns `true` and SignatureType=Wallet', async () => {
const hashHex = getCurrentHashHex();
const signatureHex = hexUtils.concat(SignatureType.Wallet);
const isValidSignature = await validateAsync(
hashHex,
validatorWallet.address,
signatureHex,
ValidatorWalletAction.ReturnTrue,
);
expect(isValidSignature).to.be.false();
});
it('should revert when validator returns nothing and SignatureType=Wallet', async () => {
const hashHex = getCurrentHashHex(validatorWallet.address);
const signatureHex = hexUtils.concat(SignatureType.Wallet);
const expectedError = new ExchangeRevertErrors.SignatureWalletError(
hashHex,
validatorWallet.address,
signatureHex,
constants.NULL_BYTES,
);
const tx = validateAsync(
hashHex,
validatorWallet.address,
signatureHex,
ValidatorWalletAction.ReturnNothing,
);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when validator reverts and SignatureType=Wallet', async () => {
const hashHex = getCurrentHashHex(validatorWallet.address);
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureHex = hexUtils.concat(generateRandomSignature(), SignatureType.Wallet);
const expectedError = new ExchangeRevertErrors.SignatureWalletError(
hashHex,
validatorWallet.address,
signatureHex,
new StringRevertError(validatorWalletRevertReason).encode(),
);
const tx = validateAsync(hashHex, validatorWallet.address, signatureHex, ValidatorWalletAction.Revert);
return expect(tx).to.revertWith(expectedError);
});
it('should return true when SignatureType=Presigned and signer has presigned hash', async () => {
const hashHex = getCurrentHashHex();
// Presign the hash
await exchange.preSign(hashHex).awaitTransactionSuccessAsync({ from: signerAddress });
// Validate presigned signature
const signatureHex = hexUtils.concat(SignatureType.PreSigned);
const isValidSignature = await validateAsync(hashHex, signerAddress, signatureHex);
expect(isValidSignature).to.be.true();
});
it('should return false when SignatureType=Presigned and signer has not presigned hash', async () => {
const hashHex = getCurrentHashHex();
const signatureHex = hexUtils.concat(SignatureType.PreSigned);
const isValidSignature = await validateAsync(hashHex, signerAddress, signatureHex);
expect(isValidSignature).to.be.false();
});
};
describe('isValidHashSignature', () => {
let hashHex: string;
beforeEach(async () => {
hashHex = orderUtils.generatePseudoRandomOrderHash();
});
const validateAsync = async (
_hashHex: string,
_signerAddress: string,
signatureHex: string,
validatorAction?: ValidatorWalletAction,
validatorExpectedSignatureHex?: string,
) => {
const expectedSignatureHashHex =
validatorExpectedSignatureHex === undefined
? constants.NULL_BYTES
: hashBytes(validatorExpectedSignatureHex);
if (validatorAction !== undefined) {
await validatorWallet
.prepare(_hashHex, validatorAction, expectedSignatureHashHex)
.awaitTransactionSuccessAsync();
}
return exchange.isValidHashSignature(_hashHex, _signerAddress, signatureHex).callAsync();
};
it('should revert when signerAddress == 0', async () => {
const signatureHex = hexUtils.concat(SignatureType.EIP712);
const expectedError = new ExchangeRevertErrors.SignatureError(
ExchangeRevertErrors.SignatureErrorCode.InvalidSigner,
hashHex,
constants.NULL_ADDRESS,
signatureHex,
);
const tx = validateAsync(hashHex, constants.NULL_ADDRESS, signatureHex);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when SignatureType=Validator', async () => {
const signatureHex = hexUtils.concat(SignatureType.Validator);
const expectedError = new ExchangeRevertErrors.SignatureError(
ExchangeRevertErrors.SignatureErrorCode.InappropriateSignatureType,
hashHex,
signerAddress,
signatureHex,
);
const tx = validateAsync(hashHex, signerAddress, signatureHex);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when SignatureType=EIP1271Wallet', async () => {
const signatureHex = hexUtils.concat(SignatureType.EIP1271Wallet);
const expectedError = new ExchangeRevertErrors.SignatureError(
ExchangeRevertErrors.SignatureErrorCode.InappropriateSignatureType,
hashHex,
signerAddress,
signatureHex,
);
const tx = validateAsync(hashHex, signerAddress, signatureHex);
return expect(tx).to.revertWith(expectedError);
});
it('should return true when message was signed by a Trezor One (firmware version 1.6.2)', async () => {
// messageHash translates to 0x2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b
const messageHash = ethUtil.bufferToHex(ethUtil.toBuffer('++++++++++++++++++++++++++++++++'));
const signer = '0xc28b145f10f0bcf0fc000e778615f8fd73490bad';
const v = ethUtil.toBuffer('0x1c');
const r = ethUtil.toBuffer('0x7b888b596ccf87f0bacab0dcb483124973f7420f169b4824d7a12534ac1e9832');
const s = ethUtil.toBuffer('0x0c8e14f7edc01459e13965f1da56e0c23ed11e2cca932571eee1292178f90424');
const trezorSignatureType = ethUtil.toBuffer(`0x${SignatureType.EthSign}`);
const signature = Buffer.concat([v, r, s, trezorSignatureType]);
const signatureHex = ethUtil.bufferToHex(signature);
const isValidSignature = await exchange.isValidHashSignature(messageHash, signer, signatureHex).callAsync();
expect(isValidSignature).to.be.true();
});
it('should return true when message was signed by a Trezor Model T (firmware version 2.0.7)', async () => {
// messageHash translates to 0x2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b
const messageHash = ethUtil.bufferToHex(ethUtil.toBuffer('++++++++++++++++++++++++++++++++'));
const signer = '0x98ce6d9345e8ffa7d99ee0822272fae9d2c0e895';
const v = ethUtil.toBuffer('0x1c');
const r = ethUtil.toBuffer('0x423b71062c327f0ec4fe199b8da0f34185e59b4c1cb4cc23df86cac4a601fb3f');
const s = ethUtil.toBuffer('0x53810d6591b5348b7ee08ee812c874b0fdfb942c9849d59512c90e295221091f');
const trezorSignatureType = ethUtil.toBuffer(`0x${SignatureType.EthSign}`);
const signature = Buffer.concat([v, r, s, trezorSignatureType]);
const signatureHex = ethUtil.bufferToHex(signature);
const isValidSignature = await exchange.isValidHashSignature(messageHash, signer, signatureHex).callAsync();
expect(isValidSignature).to.be.true();
});
createHashSignatureTests((_signerAddress?: string) => hashHex, validateAsync);
});
describe('isValidOrderSignature', () => {
let orderFactory: OrderFactory;
let signedOrder: SignedOrder;
before(async () => {
const defaultOrderParams = {
...constants.STATIC_ORDER_PARAMS,
makerAddress: signerAddress,
feeRecipientAddress: randomAddress(),
makerAssetData: encodeERC20AssetData(randomAddress()),
takerAssetData: encodeERC20AssetData(randomAddress()),
makerFeeAssetData: encodeERC20AssetData(randomAddress()),
takerFeeAssetData: encodeERC20AssetData(randomAddress()),
makerFee: constants.ZERO_AMOUNT,
takerFee: constants.ZERO_AMOUNT,
exchangeAddress: exchange.address,
chainId,
};
orderFactory = new OrderFactory(signerPrivateKey, defaultOrderParams);
});
beforeEach(async () => {
signedOrder = await orderFactory.newSignedOrderAsync();
});
const validateAsync = async (
order: SignedOrder,
signatureHex: string,
validatorAction?: ValidatorWalletAction,
validatorExpectedSignatureHex?: string,
) => {
const orderHashHex = orderHashUtils.getOrderHashHex(order);
const expectedSignatureHashHex =
validatorExpectedSignatureHex === undefined
? constants.NULL_BYTES
: hashBytes(validatorExpectedSignatureHex);
if (validatorAction !== undefined) {
await validatorWallet
.prepare(orderHashHex, validatorAction, expectedSignatureHashHex)
.awaitTransactionSuccessAsync();
}
return exchange.isValidOrderSignature(order, signatureHex).callAsync();
};
it('should revert when signerAddress == 0', async () => {
const signatureHex = hexUtils.concat(SignatureType.EIP712);
const nullMakerOrder = {
...signedOrder,
makerAddress: constants.NULL_ADDRESS,
};
const orderHashHex = orderHashUtils.getOrderHashHex(nullMakerOrder);
const expectedError = new ExchangeRevertErrors.SignatureError(
ExchangeRevertErrors.SignatureErrorCode.InvalidSigner,
orderHashHex,
constants.NULL_ADDRESS,
signatureHex,
);
const tx = exchange.isValidOrderSignature(nullMakerOrder, signatureHex).callAsync();
return expect(tx).to.revertWith(expectedError);
});
it('should return true when SignatureType=Validator, signature is valid and validator is approved', async () => {
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, validatorWallet.address, SignatureType.Validator);
const isValidSignature = await validateAsync(
signedOrder,
signatureHex,
ValidatorWalletAction.MatchSignatureHash,
signatureDataHex,
);
expect(isValidSignature).to.be.true();
});
it('should return false when SignatureType=Validator, signature is invalid and validator is approved', async () => {
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureDataHex = generateRandomSignature();
const notSignatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(notSignatureDataHex, validatorWallet.address, SignatureType.Validator);
const isValidSignature = await validateAsync(
signedOrder,
signatureHex,
ValidatorWalletAction.MatchSignatureHash,
signatureDataHex,
);
expect(isValidSignature).to.be.false();
});
it('should return false when validator returns `true` and SignatureType=Validator', async () => {
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, validatorWallet.address, SignatureType.Validator);
const isValidSignature = await validateAsync(
signedOrder,
signatureHex,
ValidatorWalletAction.ReturnTrue,
signatureDataHex,
);
expect(isValidSignature).to.be.false();
});
it('should revert when validator returns nothing and SignatureType=Validator', async () => {
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, validatorWallet.address, SignatureType.Validator);
const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder);
const data = eip1271Data.OrderWithHash(signedOrder, orderHashHex).getABIEncodedTransactionData();
const expectedError = new ExchangeRevertErrors.EIP1271SignatureError(
validatorWallet.address,
data,
signatureHex,
constants.NULL_BYTES,
);
const tx = validateAsync(signedOrder, signatureHex, ValidatorWalletAction.ReturnNothing, signatureDataHex);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when validator attempts to update state and SignatureType=Validator', async () => {
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, validatorWallet.address, SignatureType.Validator);
const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder);
const data = eip1271Data.OrderWithHash(signedOrder, orderHashHex).getABIEncodedTransactionData();
const expectedError = new ExchangeRevertErrors.EIP1271SignatureError(
validatorWallet.address,
data,
signatureHex,
constants.NULL_BYTES,
);
const tx = validateAsync(signedOrder, signatureHex, ValidatorWalletAction.UpdateState);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when validator reverts and SignatureType=Validator', async () => {
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, validatorWallet.address, SignatureType.Validator);
const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder);
const data = eip1271Data.OrderWithHash(signedOrder, orderHashHex).getABIEncodedTransactionData();
const expectedError = new ExchangeRevertErrors.EIP1271SignatureError(
validatorWallet.address,
data,
signatureHex,
new StringRevertError(validatorWalletRevertReason).encode(),
);
const tx = validateAsync(signedOrder, signatureHex, ValidatorWalletAction.Revert);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when SignatureType=Validator and signature is shorter than 21 bytes', async () => {
// Set approval of signature validator to false
await exchange
.setSignatureValidatorApproval(validatorWallet.address, false)
.awaitTransactionSuccessAsync({ from: signedOrder.makerAddress });
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureHex = hexUtils.concat(SignatureType.Validator);
const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder);
const expectedError = new ExchangeRevertErrors.SignatureError(
ExchangeRevertErrors.SignatureErrorCode.InvalidLength,
orderHashHex,
signedOrder.makerAddress,
signatureHex,
);
const tx = validateAsync(signedOrder, signatureHex, ValidatorWalletAction.MatchSignatureHash);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when SignatureType=Validator, signature is valid and validator is not approved', async () => {
// Set approval of signature validator to false
await exchange
.setSignatureValidatorApproval(validatorWallet.address, false)
.awaitTransactionSuccessAsync({ from: signedOrder.makerAddress });
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, validatorWallet.address, SignatureType.Validator);
const expectedError = new ExchangeRevertErrors.SignatureValidatorNotApprovedError(
signedOrder.makerAddress,
validatorWallet.address,
);
const tx = validateAsync(signedOrder, signatureHex, ValidatorWalletAction.Revert);
return expect(tx).to.revertWith(expectedError);
});
it('should return true when SignatureType=EIP1271Wallet and signature is valid', async () => {
signedOrder.makerAddress = validatorWallet.address;
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, SignatureType.EIP1271Wallet);
// Validate signature
const isValidSignature = await validateAsync(
signedOrder,
signatureHex,
ValidatorWalletAction.MatchSignatureHash,
signatureDataHex,
);
expect(isValidSignature).to.be.true();
});
it('should return false when SignatureType=EIP1271Wallet and signature is invalid', async () => {
signedOrder.makerAddress = validatorWallet.address;
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureDataHex = generateRandomSignature();
const notSignatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(notSignatureDataHex, SignatureType.EIP1271Wallet);
// Validate signature
const isValidSignature = await validateAsync(
signedOrder,
signatureHex,
ValidatorWalletAction.MatchSignatureHash,
signatureDataHex,
);
expect(isValidSignature).to.be.false();
});
it('should return false when validator returns `true` and SignatureType=EIP1271Wallet', async () => {
signedOrder.makerAddress = validatorWallet.address;
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, SignatureType.EIP1271Wallet);
// Validate signature
const isValidSignature = await validateAsync(
signedOrder,
signatureHex,
ValidatorWalletAction.ReturnTrue,
signatureDataHex,
);
expect(isValidSignature).to.be.false();
});
it('should revert when validator returns nothing and SignatureType=EIP1271Wallet', async () => {
signedOrder.makerAddress = validatorWallet.address;
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, SignatureType.EIP1271Wallet);
const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder);
const data = eip1271Data.OrderWithHash(signedOrder, orderHashHex).getABIEncodedTransactionData();
const expectedError = new ExchangeRevertErrors.EIP1271SignatureError(
validatorWallet.address,
data,
signatureHex,
constants.NULL_BYTES,
);
const tx = validateAsync(signedOrder, signatureHex, ValidatorWalletAction.ReturnNothing, signatureDataHex);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when validator attempts to update state and SignatureType=EIP1271Wallet', async () => {
signedOrder.makerAddress = validatorWallet.address;
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureHex = hexUtils.concat(generateRandomSignature(), SignatureType.EIP1271Wallet);
const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder);
const data = eip1271Data.OrderWithHash(signedOrder, orderHashHex).getABIEncodedTransactionData();
const expectedError = new ExchangeRevertErrors.EIP1271SignatureError(
validatorWallet.address,
data,
signatureHex,
constants.NULL_BYTES,
);
const tx = validateAsync(signedOrder, signatureHex, ValidatorWalletAction.UpdateState);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when validator reverts and SignatureType=EIP1271Wallet', async () => {
signedOrder.makerAddress = validatorWallet.address;
const signatureHex = hexUtils.concat(SignatureType.EIP1271Wallet);
const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder);
const data = eip1271Data.OrderWithHash(signedOrder, orderHashHex).getABIEncodedTransactionData();
const expectedError = new ExchangeRevertErrors.EIP1271SignatureError(
validatorWallet.address,
data,
signatureHex,
new StringRevertError(validatorWalletRevertReason).encode(),
);
const tx = validateAsync(signedOrder, signatureHex, ValidatorWalletAction.Revert);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when signer is an EOA and SignatureType=EIP1271Wallet', async () => {
const signatureHex = hexUtils.concat(SignatureType.EIP1271Wallet);
signedOrder.makerAddress = notSignerAddress;
const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder);
const data = eip1271Data.OrderWithHash(signedOrder, orderHashHex).getABIEncodedTransactionData();
const expectedError = new ExchangeRevertErrors.EIP1271SignatureError(
notSignerAddress,
data,
signatureHex,
constants.NULL_BYTES,
);
const tx = exchange.isValidOrderSignature(signedOrder, signatureHex).callAsync();
return expect(tx).to.revertWith(expectedError);
});
it('should revert when signer is an EOA and SignatureType=Validator', async () => {
const signatureHex = hexUtils.concat(notSignerAddress, SignatureType.Validator);
const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder);
const data = eip1271Data.OrderWithHash(signedOrder, orderHashHex).getABIEncodedTransactionData();
const expectedError = new ExchangeRevertErrors.EIP1271SignatureError(
notSignerAddress,
data,
signatureHex,
constants.NULL_BYTES,
);
// Register an EOA as a validator.
await exchange
.setSignatureValidatorApproval(notSignerAddress, true)
.awaitTransactionSuccessAsync({ from: signerAddress });
const tx = exchange.isValidOrderSignature(signedOrder, signatureHex).callAsync();
return expect(tx).to.revertWith(expectedError);
});
// Run hash-only signature type tests as well.
const validateOrderHashAsync = async (
_hashHex: string,
_signerAddress: string,
signatureHex: string,
validatorAction?: ValidatorWalletAction,
validatorExpectedSignatureHex?: string,
): Promise<any> => {
signedOrder.makerAddress = _signerAddress;
return validateAsync(signedOrder, signatureHex, validatorAction, validatorExpectedSignatureHex);
};
createHashSignatureTests((_signerAddress?: string) => {
signedOrder.makerAddress = _signerAddress === undefined ? signerAddress : _signerAddress;
return orderHashUtils.getOrderHashHex(signedOrder);
}, validateOrderHashAsync);
});
describe('isValidTransactionSignature', () => {
let transactionFactory: TransactionFactory;
let signedTransaction: SignedZeroExTransaction;
const TRANSACTION_DATA_LENGTH = 100;
before(async () => {
transactionFactory = new TransactionFactory(signerPrivateKey, exchange.address, chainId);
});
beforeEach(async () => {
// We don't actually do anything with the transaction so we can just
// fill it with random data.
signedTransaction = await transactionFactory.newSignedTransactionAsync({
data: hexUtils.random(TRANSACTION_DATA_LENGTH),
});
});
const validateAsync = async (
transaction: SignedZeroExTransaction,
signatureHex: string,
validatorAction?: ValidatorWalletAction,
validatorExpectedSignatureHex?: string,
) => {
const transactionHashHex = transactionHashUtils.getTransactionHashHex(transaction);
const expectedSignatureHashHex =
validatorExpectedSignatureHex === undefined
? constants.NULL_BYTES
: hashBytes(validatorExpectedSignatureHex);
if (validatorAction !== undefined) {
await validatorWallet
.prepare(transactionHashHex, validatorAction, expectedSignatureHashHex)
.awaitTransactionSuccessAsync();
}
return exchange.isValidTransactionSignature(transaction, signatureHex).callAsync();
};
it('should revert when signerAddress == 0', async () => {
const signatureHex = hexUtils.concat(SignatureType.EIP712);
const nullSignerTransaction = {
...signedTransaction,
signerAddress: constants.NULL_ADDRESS,
};
const transactionHashHex = transactionHashUtils.getTransactionHashHex(nullSignerTransaction);
const expectedError = new ExchangeRevertErrors.SignatureError(
ExchangeRevertErrors.SignatureErrorCode.InvalidSigner,
transactionHashHex,
constants.NULL_ADDRESS,
signatureHex,
);
const tx = exchange.isValidTransactionSignature(nullSignerTransaction, signatureHex).callAsync();
return expect(tx).to.revertWith(expectedError);
});
it('should return true when SignatureType=Validator, signature is valid and validator is approved', async () => {
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, validatorWallet.address, SignatureType.Validator);
const isValidSignature = await validateAsync(
signedTransaction,
signatureHex,
ValidatorWalletAction.MatchSignatureHash,
signatureDataHex,
);
expect(isValidSignature).to.be.true();
});
it('should return false when SignatureType=Validator, signature is invalid and validator is approved', async () => {
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureDataHex = generateRandomSignature();
const notSignatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(notSignatureDataHex, validatorWallet.address, SignatureType.Validator);
const isValidSignature = await validateAsync(
signedTransaction,
signatureHex,
ValidatorWalletAction.MatchSignatureHash,
signatureDataHex,
);
expect(isValidSignature).to.be.false();
});
it('should return false when validator returns `true` and SignatureType=Validator', async () => {
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, validatorWallet.address, SignatureType.Validator);
const isValidSignature = await validateAsync(
signedTransaction,
signatureHex,
ValidatorWalletAction.ReturnTrue,
signatureDataHex,
);
expect(isValidSignature).to.be.false();
});
it('should revert when SignatureType=Validator and signature is shorter than 21 bytes', async () => {
// Set approval of signature validator to false
await exchange
.setSignatureValidatorApproval(validatorWallet.address, false)
.awaitTransactionSuccessAsync({ from: signedTransaction.signerAddress });
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureHex = hexUtils.concat(SignatureType.Validator);
const transactionHashHex = transactionHashUtils.getTransactionHashHex(signedTransaction);
const expectedError = new ExchangeRevertErrors.SignatureError(
ExchangeRevertErrors.SignatureErrorCode.InvalidLength,
transactionHashHex,
signedTransaction.signerAddress,
signatureHex,
);
const tx = validateAsync(signedTransaction, signatureHex, ValidatorWalletAction.MatchSignatureHash);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when validator returns nothing and SignatureType=Validator', async () => {
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, validatorWallet.address, SignatureType.Validator);
const transactionHashHex = transactionHashUtils.getTransactionHashHex(signedTransaction);
const data = eip1271Data
.ZeroExTransactionWithHash(signedTransaction, transactionHashHex)
.getABIEncodedTransactionData();
const expectedError = new ExchangeRevertErrors.EIP1271SignatureError(
validatorWallet.address,
data,
signatureHex,
constants.NULL_BYTES,
);
const tx = validateAsync(
signedTransaction,
signatureHex,
ValidatorWalletAction.ReturnNothing,
signatureDataHex,
);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when validator attempts to update state and SignatureType=Validator', async () => {
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, validatorWallet.address, SignatureType.Validator);
const transactionHashHex = transactionHashUtils.getTransactionHashHex(signedTransaction);
const data = eip1271Data
.ZeroExTransactionWithHash(signedTransaction, transactionHashHex)
.getABIEncodedTransactionData();
const expectedError = new ExchangeRevertErrors.EIP1271SignatureError(
validatorWallet.address,
data,
signatureHex,
constants.NULL_BYTES,
);
const tx = validateAsync(signedTransaction, signatureHex, ValidatorWalletAction.UpdateState);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when validator reverts and SignatureType=Validator', async () => {
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, validatorWallet.address, SignatureType.Validator);
const transactionHashHex = transactionHashUtils.getTransactionHashHex(signedTransaction);
const data = eip1271Data
.ZeroExTransactionWithHash(signedTransaction, transactionHashHex)
.getABIEncodedTransactionData();
const expectedError = new ExchangeRevertErrors.EIP1271SignatureError(
validatorWallet.address,
data,
signatureHex,
new StringRevertError(validatorWalletRevertReason).encode(),
);
const tx = validateAsync(signedTransaction, signatureHex, ValidatorWalletAction.Revert);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when SignatureType=Validator, signature is valid and validator is not approved', async () => {
// Set approval of signature validator to false
await exchange
.setSignatureValidatorApproval(validatorWallet.address, false)
.awaitTransactionSuccessAsync({ from: signedTransaction.signerAddress });
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, validatorWallet.address, SignatureType.Validator);
const expectedError = new ExchangeRevertErrors.SignatureValidatorNotApprovedError(
signedTransaction.signerAddress,
validatorWallet.address,
);
const tx = validateAsync(signedTransaction, signatureHex, ValidatorWalletAction.Revert);
return expect(tx).to.revertWith(expectedError);
});
it('should return true when SignatureType=EIP1271Wallet and signature is valid', async () => {
signedTransaction.signerAddress = validatorWallet.address;
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, SignatureType.EIP1271Wallet);
// Validate signature
const isValidSignature = await validateAsync(
signedTransaction,
signatureHex,
ValidatorWalletAction.MatchSignatureHash,
signatureDataHex,
);
expect(isValidSignature).to.be.true();
});
it('should return false when SignatureType=EIP1271Wallet and signature is invalid', async () => {
signedTransaction.signerAddress = validatorWallet.address;
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureDataHex = generateRandomSignature();
const notSignatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(notSignatureDataHex, SignatureType.EIP1271Wallet);
// Validate signature
const isValidSignature = await validateAsync(
signedTransaction,
signatureHex,
ValidatorWalletAction.MatchSignatureHash,
signatureDataHex,
);
expect(isValidSignature).to.be.false();
});
it('should return false when validator returns `true` and SignatureType=EIP1271Wallet', async () => {
signedTransaction.signerAddress = validatorWallet.address;
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, SignatureType.EIP1271Wallet);
// Validate signature
const isValidSignature = await validateAsync(
signedTransaction,
signatureHex,
ValidatorWalletAction.ReturnTrue,
signatureDataHex,
);
expect(isValidSignature).to.be.false();
});
it('should revert when validator returns nothing and SignatureType=EIP1271Wallet', async () => {
signedTransaction.signerAddress = validatorWallet.address;
const signatureDataHex = generateRandomSignature();
const signatureHex = hexUtils.concat(signatureDataHex, SignatureType.EIP1271Wallet);
const transactionHashHex = transactionHashUtils.getTransactionHashHex(signedTransaction);
const data = eip1271Data
.ZeroExTransactionWithHash(signedTransaction, transactionHashHex)
.getABIEncodedTransactionData();
const expectedError = new ExchangeRevertErrors.EIP1271SignatureError(
validatorWallet.address,
data,
signatureHex,
constants.NULL_BYTES,
);
const tx = validateAsync(
signedTransaction,
signatureHex,
ValidatorWalletAction.ReturnNothing,
signatureDataHex,
);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when validator attempts to update state and SignatureType=EIP1271Wallet', async () => {
signedTransaction.signerAddress = validatorWallet.address;
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureHex = hexUtils.concat(generateRandomSignature(), SignatureType.EIP1271Wallet);
const transactionHashHex = transactionHashUtils.getTransactionHashHex(signedTransaction);
const data = eip1271Data
.ZeroExTransactionWithHash(signedTransaction, transactionHashHex)
.getABIEncodedTransactionData();
const expectedError = new ExchangeRevertErrors.EIP1271SignatureError(
validatorWallet.address,
data,
signatureHex,
constants.NULL_BYTES,
);
const tx = validateAsync(signedTransaction, signatureHex, ValidatorWalletAction.UpdateState);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when validator reverts and SignatureType=EIP1271Wallet', async () => {
signedTransaction.signerAddress = validatorWallet.address;
// Doesn't have to contain a real signature since our wallet contract
// just does a hash comparison.
const signatureHex = hexUtils.concat(generateRandomSignature(), SignatureType.EIP1271Wallet);
const transactionHashHex = transactionHashUtils.getTransactionHashHex(signedTransaction);
const data = eip1271Data
.ZeroExTransactionWithHash(signedTransaction, transactionHashHex)
.getABIEncodedTransactionData();
const expectedError = new ExchangeRevertErrors.EIP1271SignatureError(
validatorWallet.address,
data,
signatureHex,
new StringRevertError(validatorWalletRevertReason).encode(),
);
const tx = validateAsync(signedTransaction, signatureHex, ValidatorWalletAction.Revert);
return expect(tx).to.revertWith(expectedError);
});
it('should revert when signer is an EOA and SignatureType=EIP1271Wallet', async () => {
const signatureHex = hexUtils.concat(SignatureType.EIP1271Wallet);
const transactionHashHex = transactionHashUtils.getTransactionHashHex(signedTransaction);
const data = eip1271Data
.ZeroExTransactionWithHash(signedTransaction, transactionHashHex)
.getABIEncodedTransactionData();
const expectedError = new ExchangeRevertErrors.EIP1271SignatureError(
signedTransaction.signerAddress,
data,
signatureHex,
constants.NULL_BYTES,
);
const tx = exchange.isValidTransactionSignature(signedTransaction, signatureHex).callAsync();
return expect(tx).to.revertWith(expectedError);
});
it('should revert when signer is an EOA and SignatureType=Validator', async () => {
const signatureHex = hexUtils.concat(notSignerAddress, SignatureType.Validator);
const transactionHashHex = transactionHashUtils.getTransactionHashHex(signedTransaction);
const data = eip1271Data
.ZeroExTransactionWithHash(signedTransaction, transactionHashHex)
.getABIEncodedTransactionData();
const expectedError = new ExchangeRevertErrors.EIP1271SignatureError(
notSignerAddress,
data,
signatureHex,
constants.NULL_BYTES,
);
// Register an EOA as a validator.
await exchange
.setSignatureValidatorApproval(notSignerAddress, true)
.awaitTransactionSuccessAsync({ from: signerAddress });
const tx = exchange.isValidTransactionSignature(signedTransaction, signatureHex).callAsync();
return expect(tx).to.revertWith(expectedError);
});
// Run hash-only signature type tests as well.
const validateOrderHashAsync = async (
_hashHex: string,
_signerAddress: string,
signatureHex: string,
validatorAction?: ValidatorWalletAction,
validatorExpectedSignatureHex?: string,
): Promise<any> => {
signedTransaction.signerAddress = _signerAddress;
return validateAsync(signedTransaction, signatureHex, validatorAction, validatorExpectedSignatureHex);
};
createHashSignatureTests((_signerAddress?: string) => {
signedTransaction.signerAddress = _signerAddress === undefined ? signerAddress : _signerAddress;
return transactionHashUtils.getTransactionHashHex(signedTransaction);
}, validateOrderHashAsync);
});
describe('setSignatureValidatorApproval', () => {
let signatureValidatorLogDecoder: LogDecoder;
before(async () => {
signatureValidatorLogDecoder = new LogDecoder(env.web3Wrapper, artifacts);
});
it('should emit a SignatureValidatorApprovalSet with correct args when a validator is approved', async () => {
const approval = true;
const res = await exchange
.setSignatureValidatorApproval(validatorWallet.address, approval)
.awaitTransactionSuccessAsync({
from: signerAddress,
});
expect(res.logs.length).to.equal(1);
const log = signatureValidatorLogDecoder.decodeLogOrThrow(res.logs[0]) as LogWithDecodedArgs<
ExchangeSignatureValidatorApprovalEventArgs
>;
const logArgs = log.args;
expect(logArgs.signerAddress).to.equal(signerAddress);
expect(logArgs.validatorAddress).to.equal(validatorWallet.address);
expect(logArgs.isApproved).to.equal(approval);
});
it('should emit a SignatureValidatorApprovalSet with correct args when a validator is disapproved', async () => {
const approval = false;
const res = await exchange
.setSignatureValidatorApproval(validatorWallet.address, approval)
.awaitTransactionSuccessAsync({
from: signerAddress,
});
expect(res.logs.length).to.equal(1);
const log = signatureValidatorLogDecoder.decodeLogOrThrow(res.logs[0]) as LogWithDecodedArgs<
ExchangeSignatureValidatorApprovalEventArgs
>;
const logArgs = log.args;
expect(logArgs.signerAddress).to.equal(signerAddress);
expect(logArgs.validatorAddress).to.equal(validatorWallet.address);
expect(logArgs.isApproved).to.equal(approval);
});
});
describe('fillOrder integration tests', () => {
let erc20Wrapper: ERC20Wrapper;
let erc20Proxy: ERC20ProxyContract;
let erc20TokenA: DummyERC20TokenContract;
let erc20TokenB: DummyERC20TokenContract;
let feeToken: DummyERC20TokenContract;
let orderFactory: OrderFactory;
let signedOrder: SignedOrder;
before(async () => {
// Deploy ERC20 proxy and tokens
erc20Wrapper = new ERC20Wrapper(env.provider, accounts, owner);
erc20Proxy = await erc20Wrapper.deployProxyAsync();
const numDummyErc20ToDeploy = 3;
[erc20TokenA, erc20TokenB, feeToken] = await erc20Wrapper.deployDummyTokensAsync(
numDummyErc20ToDeploy,
constants.DUMMY_TOKEN_DECIMALS,
);
await erc20Wrapper.setBalancesAndAllowancesAsync();
// Configure ERC20 proxy and exchange
await erc20Proxy.addAuthorizedAddress(exchange.address).awaitTransactionSuccessAsync({ from: owner });
await exchange.registerAssetProxy(erc20Proxy.address).awaitTransactionSuccessAsync({ from: owner });
// Configure order defaults
const defaultMakerAssetAddress = erc20TokenA.address;
const defaultTakerAssetAddress = erc20TokenB.address;
const defaultFeeAssetAddress = feeToken.address;
const defaultOrderParams = {
...constants.STATIC_ORDER_PARAMS,
makerAddress,
feeRecipientAddress,
makerAssetData: encodeERC20AssetData(defaultMakerAssetAddress),
takerAssetData: encodeERC20AssetData(defaultTakerAssetAddress),
makerFeeAssetData: encodeERC20AssetData(defaultFeeAssetAddress),
takerFeeAssetData: encodeERC20AssetData(defaultFeeAssetAddress),
exchangeAddress: exchange.address,
chainId,
};
const privateKey = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(makerAddress)];
orderFactory = new OrderFactory(privateKey, defaultOrderParams);
// Approve the ERC20 proxy with the test validator wallet.
await validatorWallet
.approveERC20(erc20TokenA.address, erc20Proxy.address, constants.INITIAL_ERC20_ALLOWANCE)
.awaitTransactionSuccessAsync();
// Mint some ERC20 tokens to the test validator wallet.
await erc20TokenA
.setBalance(validatorWallet.address, constants.INITIAL_ERC20_BALANCE)
.awaitTransactionSuccessAsync();
// Approve the validator.
await exchange.setSignatureValidatorApproval(validatorWallet.address, true).awaitTransactionSuccessAsync({
from: makerAddress,
});
signedOrder = await orderFactory.newSignedOrderAsync({
makerFee: constants.ZERO_AMOUNT,
takerFee: constants.ZERO_AMOUNT,
});
});
it('should revert if `Validator` signature type rejects during a second fill', async () => {
const signatureHex = hexUtils.concat(validatorWallet.address, SignatureType.Validator);
signedOrder.signature = signatureHex;
const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder);
// Allow the signature check for the first fill.
await validatorWallet
.prepare(orderHashHex, ValidatorWalletAction.Accept, constants.NULL_BYTES)
.awaitTransactionSuccessAsync();
const fillAmount = signedOrder.takerAssetAmount.div(10);
await exchange.fillOrder(signedOrder, fillAmount, signedOrder.signature).awaitTransactionSuccessAsync({
from: takerAddress,
});
// Reject the signature check for the second fill.
await validatorWallet
.prepare(orderHashHex, ValidatorWalletAction.Reject, constants.NULL_BYTES)
.awaitTransactionSuccessAsync();
const tx = exchange.fillOrder(signedOrder, fillAmount, signedOrder.signature).awaitTransactionSuccessAsync({
from: takerAddress,
});
const expectedError = new ExchangeRevertErrors.SignatureError(
ExchangeRevertErrors.SignatureErrorCode.BadOrderSignature,
orderHashHex,
signedOrder.makerAddress,
signedOrder.signature,
);
return expect(tx).to.revertWith(expectedError);
});
it('should revert if `Wallet` signature type rejects during a second fill', async () => {
const signatureHex = hexUtils.concat(SignatureType.Wallet);
signedOrder.makerAddress = validatorWallet.address;
signedOrder.signature = signatureHex;
const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder);
// Allow the signature check for the first fill.
await validatorWallet
.prepare(orderHashHex, ValidatorWalletAction.Accept, constants.NULL_BYTES)
.awaitTransactionSuccessAsync();
const fillAmount = signedOrder.takerAssetAmount.div(10);
await exchange.fillOrder(signedOrder, fillAmount, signedOrder.signature).awaitTransactionSuccessAsync({
from: takerAddress,
});
// Reject the signature check for the second fill.
await validatorWallet
.prepare(orderHashHex, ValidatorWalletAction.Reject, constants.NULL_BYTES)
.awaitTransactionSuccessAsync();
const tx = exchange.fillOrder(signedOrder, fillAmount, signedOrder.signature).awaitTransactionSuccessAsync({
from: takerAddress,
});
const expectedError = new ExchangeRevertErrors.SignatureError(
ExchangeRevertErrors.SignatureErrorCode.BadOrderSignature,
orderHashHex,
signedOrder.makerAddress,
signedOrder.signature,
);
return expect(tx).to.revertWith(expectedError);
});
it('should revert if `EIP1271Wallet` signature type rejects during a second fill', async () => {
const signatureHex = hexUtils.concat(SignatureType.EIP1271Wallet);
signedOrder.makerAddress = validatorWallet.address;
signedOrder.signature = signatureHex;
const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder);
// Allow the signature check for the first fill.
await validatorWallet
.prepare(orderHashHex, ValidatorWalletAction.Accept, constants.NULL_BYTES)
.awaitTransactionSuccessAsync();
const fillAmount = signedOrder.takerAssetAmount.div(10);
await exchange.fillOrder(signedOrder, fillAmount, signedOrder.signature).awaitTransactionSuccessAsync({
from: takerAddress,
});
// Reject the signature check for the second fill.
await validatorWallet
.prepare(orderHashHex, ValidatorWalletAction.Reject, constants.NULL_BYTES)
.awaitTransactionSuccessAsync();
const tx = exchange.fillOrder(signedOrder, fillAmount, signedOrder.signature).awaitTransactionSuccessAsync({
from: takerAddress,
});
const expectedError = new ExchangeRevertErrors.SignatureError(
ExchangeRevertErrors.SignatureErrorCode.BadOrderSignature,
orderHashHex,
signedOrder.makerAddress,
signedOrder.signature,
);
return expect(tx).to.revertWith(expectedError);
});
});
});
// tslint:disable:max-file-line-count
// tslint:enable:no-unnecessary-type-assertion