Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta

More Options

• Is this a proxy?
• Similar
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0 <0.9.0;

import './GatewayStorage.sol';

contract Gateway is GatewayStorage {

    fallback() external payable {
        address imp = implementation;
        assembly {
            calldatacopy(0, 0, calldatasize())
            let result := delegatecall(gas(), imp, 0, calldatasize(), 0, 0)
            returndatacopy(0, 0, returndatasize())
            switch result
            case 0 { revert(0, returndatasize()) }
            default { return(0, returndatasize()) }
        }
    }

    receive() external payable {}

}

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0 <0.9.0;

import '../../utils/Admin.sol';
import '../../utils/Implementation.sol';
import '../../utils/ReentryLock.sol';

abstract contract GatewayStorage is Admin, Implementation, ReentryLock {

    // stateId => value
    mapping(uint8 => bytes32) internal _gatewayStates;

    // bToken => stateId => value
    mapping(address => mapping(uint8 => bytes32)) internal _bTokenStates;

    // dTokenId => stateId => value
    mapping(uint256 => mapping(uint8 => bytes32)) internal _dTokenStates;

    // actionId => executionFee
    mapping(uint256 => uint256) internal _executionFees;

}

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0 <0.9.0;

abstract contract Admin {

    error OnlyAdmin();

    event NewAdmin(address newAdmin);

    address public admin;

    modifier _onlyAdmin_() {
        if (msg.sender != admin) {
            revert OnlyAdmin();
        }
        _;
    }

    constructor () {
        admin = msg.sender;
        emit NewAdmin(admin);
    }

    /**
     * @notice Set a new admin for the contract.
     * @dev This function allows the current admin to assign a new admin address without performing any explicit verification.
     *      It's the current admin's responsibility to ensure that the 'newAdmin' address is correct and secure.
     * @param newAdmin The address of the new admin.
     */
    function setAdmin(address newAdmin) external _onlyAdmin_ {
        admin = newAdmin;
        emit NewAdmin(newAdmin);
    }

}

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0 <0.9.0;

import './Admin.sol';

abstract contract Implementation is Admin {

    event NewImplementation(address newImplementation);

    address public implementation;

    // @notice Set a new implementation address for the contract
    function setImplementation(address newImplementation) external _onlyAdmin_ {
        implementation = newImplementation;
        emit NewImplementation(newImplementation);
    }

}

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0 <0.9.0;

abstract contract ReentryLock {

    error Reentry();

    bool internal _mutex;

    // @notice Lock for preventing reentrancy attacks
    modifier _reentryLock_() {
        if (_mutex) {
            revert Reentry();
        }
        _mutex = true;
        _;
        _mutex = false;
    }

}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"name":"OnlyAdmin","type":"error"},{"inputs":[],"name":"Reentry","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"NewAdmin","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newImplementation","type":"address"}],"name":"NewImplementation","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newAdmin","type":"address"}],"name":"setAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"}],"name":"setImplementation","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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