Contract Source Code (Solidity Standard Json-Input format)

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// SPDX-License-Identifier: UNLICENSED
pragma solidity =0.8.28;

interface IStarknetMessaging {
    function consumeMessageFromL2(uint256 fromAddress, uint256[] calldata payload) external returns (bytes32);
}

contract StarknetOwnerProxy {
    error InvalidTarget();
    error InsufficientBalance();
    error InvalidNonce(uint64 current, uint64 nonce);
    error CallFailed(bytes data);

    IStarknetMessaging public immutable l2MessageBridge;
    uint256 public immutable l2Owner;

    uint64 public currentNonce;

    constructor(IStarknetMessaging _l2MessageBridge, uint256 _l2Owner) {
        l2MessageBridge = _l2MessageBridge;
        l2Owner = _l2Owner;
    }

    // Returns the payload split into 31-byte chunks,
    // ensuring each element is < 2^251
    function getPayload(address target, uint256 value, uint64 nonce, bytes calldata data)
        public
        pure
        returns (uint256[] memory)
    {
        // Each payload element can hold up to 31 bytes since it has to be expressed as felt252 on Starknet
        uint256 chunkCount = (data.length + 30) / 31;
        uint256[] memory payload = new uint256[](4 + chunkCount);

        payload[0] = uint256(uint160(target));
        payload[1] = value;
        payload[2] = nonce;
        payload[3] = data.length;

        for (uint256 i = 0; i < chunkCount; i++) {
            assembly ("memory-safe") {
                mstore(add(payload, mul(add(i, 5), 32)), shr(8, calldataload(add(data.offset, mul(i, 31)))))
            }
        }

        return payload;
    }

    function execute(address target, uint256 value, uint64 nonce, bytes calldata data)
        external
        returns (bytes memory)
    {
        if (target == address(0) || target == address(this)) {
            revert InvalidTarget();
        }
        if (address(this).balance < value) revert InsufficientBalance();

        if (currentNonce != nonce) revert InvalidNonce(currentNonce, nonce);
        currentNonce++;

        // Consume message from L2. This will fail if the message has not been sent from L2.
        l2MessageBridge.consumeMessageFromL2(l2Owner, getPayload(target, value, nonce, data));

        (bool success, bytes memory result) = target.call{value: value}(data);
        if (!success) revert CallFailed(result);
        return result;
    }

    // Allow contract to receive ETH
    receive() external payable {}
}

{
  "remappings": [
    "forge-std/=lib/forge-std/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 9999999
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "cancun",
  "viaIR": true,
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"contract IStarknetMessaging","name":"_l2MessageBridge","type":"address"},{"internalType":"uint256","name":"_l2Owner","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"CallFailed","type":"error"},{"inputs":[],"name":"InsufficientBalance","type":"error"},{"inputs":[{"internalType":"uint64","name":"current","type":"uint64"},{"internalType":"uint64","name":"nonce","type":"uint64"}],"name":"InvalidNonce","type":"error"},{"inputs":[],"name":"InvalidTarget","type":"error"},{"inputs":[],"name":"currentNonce","outputs":[{"internalType":"uint64","name":"","type":"uint64"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"target","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint64","name":"nonce","type":"uint64"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"execute","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"target","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint64","name":"nonce","type":"uint64"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"getPayload","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"l2MessageBridge","outputs":[{"internalType":"contract IStarknetMessaging","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"l2Owner","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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000000000000000000000000c662c410c0ecf747543f5ba90660f6abebd9c8c4053499f7aa2706395060fe72d00388803fb2dcc111429891ad7b2d9dcea29acd

-----Decoded View---------------
Arg [0] : _l2MessageBridge (address): 0xc662c410C0ECf747543f5bA90660f6ABeBD9C8c4
Arg [1] : _l2Owner (uint256): 2354502934501836923955011505963489193673442986857363336683304411560511969997

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000c662c410c0ecf747543f5ba90660f6abebd9c8c4
Arg [1] : 053499f7aa2706395060fe72d00388803fb2dcc111429891ad7b2d9dcea29acd