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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;
import {Ownable} from "solady/src/auth/Ownable.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {IERC20Router} from "../src/types/interfaces/IERC20Router.sol";
contract ApprovalProxy is Ownable {
    using SafeERC20 for IERC20;
    error ArrayLengthsMismatch();
    error ERC20TransferFromFailed();
    error NativeTransferFailed();
    event RouterUpdated(address newRouter);
    address public router;
    receive() external payable {}
    constructor(address _owner, address _router) {
        _initializeOwner(_owner);
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pragma solidity ^0.4.24;
// File: zos-lib/contracts/upgradeability/Proxy.sol
/**
 * @title Proxy
 * @dev Implements delegation of calls to other contracts, with proper
 * forwarding of return values and bubbling of failures.
 * It defines a fallback function that delegates all calls to the address
 * returned by the abstract _implementation() internal function.
 */
contract Proxy {
  /**
   * @dev Fallback function.
   * Implemented entirely in `_fallback`.
   */
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/*
  Copyright 2020 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 ^0.6.5;
pragma experimental ABIEncoderV2;
import "@0x/contracts-utils/contracts/src/v06/LibBytesV06.sol";
import "./migrations/LibBootstrap.sol";
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// 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;
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/**
 * SPDX-License-Identifier: Apache-2.0
 *
 * Copyright (c) 2023, Circle Internet Financial, LLC.
 *
 * 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.
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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.25;
import {Ownable} from "solady/src/auth/Ownable.sol";
import {Tstorish} from "tstorish/src/Tstorish.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {IERC721} from "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import {IERC1155} from "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {IAllowanceTransfer} from "permit2-relay/src/interfaces/IAllowanceTransfer.sol";
import {ISignatureTransfer} from "permit2-relay/src/interfaces/ISignatureTransfer.sol";
import {IPermit2} from "permit2-relay/src/interfaces/IPermit2.sol";
import {RelayerWitness} from "./types/lib/RelayStructs.sol";
import {IMulticaller} from "./types/interfaces/IMulticaller.sol";
contract ERC20Router is Ownable, Tstorish {
    using SafeERC20 for IERC20;
    // --- Errors --- //
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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/**
 * @title Multicaller
 * @author vectorized.eth
 * @notice Contract that allows for efficient aggregation
 *         of multiple calls in a single transaction.
 */
contract Multicaller {
    // =============================================================
    //                            ERRORS
    // =============================================================
    /**
     * @dev The lengths of the input arrays are not the same.
     */
    error ArrayLengthsMismatch();
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// SPDX-License-Identifier: Apache-2.0
/*
  Copyright 2023 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 >=0.6.5 <0.9;
interface IERC20Token {
    event Transfer(address indexed from, address indexed to, uint256 value);
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