114 lines
3.4 KiB
Solidity
114 lines
3.4 KiB
Solidity
// SPDX-License-Identifier: Apache-2.0
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/*
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Copyright 2020 ZeroEx Intl.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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pragma solidity ^0.6.5;
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pragma experimental ABIEncoderV2;
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import "../src/features/interfaces/IMetaTransactionsFeature.sol";
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import "../src/features/TransformERC20Feature.sol";
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contract TestMetaTransactionsTransformERC20Feature is
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TransformERC20Feature
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{
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event TransformERC20Called(
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address sender,
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uint256 value,
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address taker,
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IERC20TokenV06 inputToken,
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IERC20TokenV06 outputToken,
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uint256 inputTokenAmount,
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uint256 minOutputTokenAmount,
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Transformation[] transformations
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);
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constructor() public TransformERC20Feature() {}
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function _transformERC20(TransformERC20Args memory args)
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public
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override
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payable
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returns (uint256 outputTokenAmount)
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{
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if (msg.value == 555) {
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tx.origin.transfer(1);
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}
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if (msg.value == 666) {
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revert('FAIL');
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}
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if (msg.value == 777) {
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LibSignature.Signature memory signature;
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// Try to reenter `executeMetaTransaction()`
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IMetaTransactionsFeature(address(this)).executeMetaTransaction(
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IMetaTransactionsFeature.MetaTransactionData({
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signer: address(0),
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sender: address(0),
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minGasPrice: 0,
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maxGasPrice: 0,
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expirationTimeSeconds: 0,
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salt: 0,
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callData: "",
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value: 0,
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feeToken: IERC20TokenV06(0),
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feeAmount: 0
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}),
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signature
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);
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}
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if (msg.value == 888) {
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// Try to reenter `batchExecuteMetaTransactions()`
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IMetaTransactionsFeature.MetaTransactionData[] memory mtxs =
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new IMetaTransactionsFeature.MetaTransactionData[](1);
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LibSignature.Signature[] memory signatures = new LibSignature.Signature[](1);
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mtxs[0] = IMetaTransactionsFeature.MetaTransactionData({
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signer: address(0),
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sender: address(0),
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minGasPrice: 0,
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maxGasPrice: 0,
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expirationTimeSeconds: 0,
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salt: 0,
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callData: "",
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value: 0,
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feeToken: IERC20TokenV06(0),
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feeAmount: 0
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});
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IMetaTransactionsFeature(address(this)).batchExecuteMetaTransactions(
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mtxs,
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signatures
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);
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}
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emit TransformERC20Called(
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msg.sender,
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msg.value,
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args.taker,
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args.inputToken,
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args.outputToken,
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args.inputTokenAmount,
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args.minOutputTokenAmount,
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args.transformations
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);
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return 1337;
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}
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}
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