Contract Source Code (Solidity)

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Outline

• interface IProxy
•    - function masterCopy()
•  contract GnosisSafeProxy *

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/**
 *Submitted for verification at moonbeam.moonscan.io on 2022-03-24
*/

/**
 *Submitted for verification at moonriver.moonscan.io on 2022-02-07
*/

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;

/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
    function masterCopy() external view returns (address);
}

/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
    // singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
    // To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
    address internal singleton;

    /// @dev Constructor function sets address of singleton contract.
    /// @param _singleton Singleton address.
    constructor(address _singleton) {
        require(_singleton != address(0), "Invalid singleton address provided");
        singleton = _singleton;
    }

    /// @dev Fallback function forwards all transactions and returns all received return data.
    fallback() external payable {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
            // 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
            if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
                mstore(0, _singleton)
                return(0, 0x20)
            }
            calldatacopy(0, 0, calldatasize())
            let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
            returndatacopy(0, 0, returndatasize())
            if eq(success, 0) {
                revert(0, returndatasize())
            }
            return(0, returndatasize())
        }
    }
}

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[{"inputs":[{"internalType":"address","name":"_singleton","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"}]

0x608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033

604:1528:0:-:0;;;1456:42;1452:1;1446:8;1442:57;1636:66;1632:1;1619:15;1616:87;1613:2;;;1733:10;1730:1;1723:21;1772:4;1769:1;1762:15;1613:2;1825:14;1822:1;1819;1806:34;1923:1;1920;1904:14;1901:1;1889:10;1882:5;1869:56;1960:16;1957:1;1954;1939:38;2006:1;1997:7;1994:14;1991:2;;;2038:16;2035:1;2028:27;1991:2;2094:16;2091:1;2084:27

ipfs://d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b9552