Contract

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Is this a proxy?
• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
pragma solidity ^0.7.0;

import "./Proxy.sol";

interface ERC165 {
    function supportsInterface(bytes4 id) external view returns (bool);
}

///@notice Proxy implementing EIP173 for ownership management
contract EIP173Proxy is Proxy {
    // ////////////////////////// EVENTS ///////////////////////////////////////////////////////////////////////

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    // /////////////////////// CONSTRUCTOR //////////////////////////////////////////////////////////////////////

    constructor(
        address implementationAddress,
        bytes memory data,
        address ownerAddress
    ) {
        _setImplementation(implementationAddress, data);
        _setOwner(ownerAddress);
    }

    // ///////////////////// EXTERNAL ///////////////////////////////////////////////////////////////////////////

    function owner() external view returns (address) {
        return _owner();
    }

    function supportsInterface(bytes4 id) external view returns (bool) {
        if (id == 0x01ffc9a7 || id == 0x7f5828d0) {
            return true;
        }
        if (id == 0xFFFFFFFF) {
            return false;
        }

        ERC165 implementation;
        // solhint-disable-next-line security/no-inline-assembly
        assembly {
            implementation := sload(0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc)
        }

        // This technically is not standard compliant as it ERC-165 require 30,000 gas which that call cannot ensure, since it is itself inside `supportsInterface`
        // in practise this is unlikely to be an issue
        try implementation.supportsInterface(id) returns (bool support) {
            return support;
        } catch {
            return false;
        }
    }

    function transferOwnership(address newOwner) external onlyOwner {
        _setOwner(newOwner);
    }

    function changeImplementation(address newImplementation, bytes calldata data) external onlyOwner {
        _setImplementation(newImplementation, data);
    }

    // /////////////////////// MODIFIERS ////////////////////////////////////////////////////////////////////////

    modifier onlyOwner() {
        require(msg.sender == _owner(), "NOT_AUTHORIZED");
        _;
    }

    // ///////////////////////// INTERNAL //////////////////////////////////////////////////////////////////////

    function _owner() internal view returns (address adminAddress) {
        // solhint-disable-next-line security/no-inline-assembly
        assembly {
            adminAddress := sload(0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103)
        }
    }

    function _setOwner(address newOwner) internal {
        address previousOwner = _owner();
        // solhint-disable-next-line security/no-inline-assembly
        assembly {
            sstore(0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103, newOwner)
        }
        emit OwnershipTransferred(previousOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.7.0;

// EIP-1967
abstract contract Proxy {
    // /////////////////////// EVENTS ///////////////////////////////////////////////////////////////////////////

    event ProxyImplementationUpdated(address indexed previousImplementation, address indexed newImplementation);

    // ///////////////////// EXTERNAL ///////////////////////////////////////////////////////////////////////////

    receive() external payable {
        _fallback();
    }

    fallback() external payable {
        _fallback();
    }

    // ///////////////////////// INTERNAL //////////////////////////////////////////////////////////////////////

    function _fallback() internal {
        // solhint-disable-next-line security/no-inline-assembly
        assembly {
            let implementationAddress := sload(0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc)
            calldatacopy(0x0, 0x0, calldatasize())
            let success := delegatecall(gas(), implementationAddress, 0x0, calldatasize(), 0, 0)
            let retSz := returndatasize()
            returndatacopy(0, 0, retSz)
            switch success
                case 0 {
                    revert(0, retSz)
                }
                default {
                    return(0, retSz)
                }
        }
    }

    function _setImplementation(address newImplementation, bytes memory data) internal {
        address previousImplementation;
        // solhint-disable-next-line security/no-inline-assembly
        assembly {
            previousImplementation := sload(0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc)
        }

        // solhint-disable-next-line security/no-inline-assembly
        assembly {
            sstore(0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc, newImplementation)
        }

        emit ProxyImplementationUpdated(previousImplementation, newImplementation);

        if (data.length > 0) {
            (bool success, ) = newImplementation.delegatecall(data);
            if (!success) {
                assembly {
                    // This assembly ensure the revert contains the exact string data
                    let returnDataSize := returndatasize()
                    returndatacopy(0, 0, returnDataSize)
                    revert(0, returnDataSize)
                }
            }
        }
    }
}

{
  "evmVersion": "istanbul",
  "libraries": {
    "solc_0.7/proxy/EIP173Proxy.sol:EIP173Proxy": {
      "Accountant": "0x22225d74Bab7E0c7232864EaA0F143B30C811481"
    }
  },
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 2000
  },
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"implementationAddress","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"address","name":"ownerAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousImplementation","type":"address"},{"indexed":true,"internalType":"address","name":"newImplementation","type":"address"}],"name":"ProxyImplementationUpdated","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"changeImplementation","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"id","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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

000000000000000000000000b2bea2610feefa4868c3e094d2e44b113b6d61380000000000000000000000000000000000000000000000000000000000000060000000000000000000000000a083880f7a5df37bf00a25380c3eb9af9cd92d8f0000000000000000000000000000000000000000000000000000000000000044485cc955000000000000000000000000c840b3e21ff0eba77468ad450d868d4362cf67fe00000000000000000000000011cc14a8d097e5b5e299fba983bbaea4d1e7325f00000000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : implementationAddress (address): 0xb2Bea2610FEEfA4868C3e094D2E44b113b6D6138
Arg [1] : data (bytes): 0x485cc955000000000000000000000000c840b3e21ff0eba77468ad450d868d4362cf67fe00000000000000000000000011cc14a8d097e5b5e299fba983bbaea4d1e7325f
Arg [2] : ownerAddress (address): 0xa083880F7a5df37Bf00a25380C3eB9AF9cD92D8f

-----Encoded View---------------
7 Constructor Arguments found :
Arg [0] : 000000000000000000000000b2bea2610feefa4868c3e094d2e44b113b6d6138
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [2] : 000000000000000000000000a083880f7a5df37bf00a25380c3eb9af9cd92d8f
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000044
Arg [4] : 485cc955000000000000000000000000c840b3e21ff0eba77468ad450d868d43
Arg [5] : 62cf67fe00000000000000000000000011cc14a8d097e5b5e299fba983bbaea4
Arg [6] : d1e7325f00000000000000000000000000000000000000000000000000000000