Contract

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: GPL-3.0

pragma solidity ^0.8.0;

import "@uniswap/lib/contracts/libraries/TransferHelper.sol";

/**
 * @title MetaRouterGateway
 * @notice During the `metaRoute` transaction `MetaRouter` (only) claims user's tokens
 * from `MetaRoutetGateway` contract and then operates with them.
 */
contract MetaRouterGateway {
    address public immutable metaRouter;

    modifier onlyMetarouter() {
        require(metaRouter == msg.sender, "Symb: caller is not the metarouter");
        _;
    }

    constructor(address _metaRouter) {
        metaRouter = _metaRouter;
    }

    function claimTokens(
        address _token,
        address _from,
        uint256 _amount
    ) external onlyMetarouter {
        TransferHelper.safeTransferFrom(_token, _from, metaRouter, _amount);
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity >=0.6.0;

// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
    function safeApprove(
        address token,
        address to,
        uint256 value
    ) internal {
        // bytes4(keccak256(bytes('approve(address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            'TransferHelper::safeApprove: approve failed'
        );
    }

    function safeTransfer(
        address token,
        address to,
        uint256 value
    ) internal {
        // bytes4(keccak256(bytes('transfer(address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            'TransferHelper::safeTransfer: transfer failed'
        );
    }

    function safeTransferFrom(
        address token,
        address from,
        address to,
        uint256 value
    ) internal {
        // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            'TransferHelper::transferFrom: transferFrom failed'
        );
    }

    function safeTransferETH(address to, uint256 value) internal {
        (bool success, ) = to.call{value: value}(new bytes(0));
        require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 2000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_metaRouter","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"address","name":"_from","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"claimTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"metaRouter","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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

000000000000000000000000b9e13785127bffcc3dc970a55f6c7bf0844a3c15

-----Decoded View---------------
Arg [0] : _metaRouter (address): 0xB9E13785127BFfCc3dc970A55F6c7bF0844a3C15

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000b9e13785127bffcc3dc970a55f6c7bf0844a3c15