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 0.8.23;

import {InitProxy} from "@axelar-network/axelar-gmp-sdk-solidity/contracts/upgradable/InitProxy.sol";

/// @notice Proxy contract for Squid router. Enable id checking for secure updates.
contract SquidRouterProxy is InitProxy {
    /// @notice Set implementation contract expected id.
    /// @return id Identifier used to match proxy and implementation.
    function contractId() internal pure override returns (bytes32 id) {
        id = keccak256("squid-router");
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

// General interface for upgradable contracts
interface IContractIdentifier {
    /**
     * @notice Returns the contract ID. It can be used as a check during upgrades.
     * @dev Meant to be overridden in derived contracts.
     * @return bytes32 The contract ID
     */
    function contractId() external pure returns (bytes32);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import { IProxy } from './IProxy.sol';

// General interface for upgradable contracts
interface IInitProxy is IProxy {
    function init(
        address implementationAddress,
        address newOwner,
        bytes memory params
    ) external;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

// General interface for upgradable contracts
interface IProxy {
    error InvalidOwner();
    error InvalidImplementation();
    error SetupFailed();
    error NotOwner();
    error AlreadyInitialized();

    function implementation() external view returns (address);

    function setup(bytes calldata setupParams) external;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import { IProxy } from '../interfaces/IProxy.sol';

/**
 * @title BaseProxy Contract
 * @dev This abstract contract implements a basic proxy that stores an implementation address. Fallback function
 * calls are delegated to the implementation. This contract is meant to be inherited by other proxy contracts.
 */
abstract contract BaseProxy is IProxy {
    // bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1)
    bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
    // keccak256('owner')
    bytes32 internal constant _OWNER_SLOT = 0x02016836a56b71f0d02689e69e326f4f4c1b9057164ef592671cf0d37c8040c0;

    /**
     * @dev Returns the current implementation address.
     * @return implementation_ The address of the current implementation contract
     */
    function implementation() public view virtual returns (address implementation_) {
        assembly {
            implementation_ := sload(_IMPLEMENTATION_SLOT)
        }
    }

    /**
     * @dev Shadows the setup function of the implementation contract so it can't be called directly via the proxy.
     * @param params The setup parameters for the implementation contract.
     */
    function setup(bytes calldata params) external {}

    /**
     * @dev Returns the contract ID. It can be used as a check during upgrades. Meant to be implemented in derived contracts.
     * @return bytes32 The contract ID
     */
    function contractId() internal pure virtual returns (bytes32);

    /**
     * @dev Fallback function. Delegates the call to the current implementation contract.
     */
    fallback() external payable virtual {
        address implementation_ = implementation();
        assembly {
            calldatacopy(0, 0, calldatasize())

            let result := delegatecall(gas(), implementation_, 0, calldatasize(), 0, 0)
            returndatacopy(0, 0, returndatasize())

            switch result
            case 0 {
                revert(0, returndatasize())
            }
            default {
                return(0, returndatasize())
            }
        }
    }

    /**
     * @dev Payable fallback function. Can be overridden in derived contracts.
     */
    receive() external payable virtual {}
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import { IInitProxy } from '../interfaces/IInitProxy.sol';
import { IContractIdentifier } from '../interfaces/IContractIdentifier.sol';
import { BaseProxy } from './BaseProxy.sol';

/**
 * @title InitProxy Contract
 * @notice A proxy contract that can be initialized to use a specified implementation and owner. Inherits from BaseProxy
 * and implements the IInitProxy interface.
 * @dev This proxy is constructed empty and then later initialized with the implementation contract address, new owner address,
 * and any optional setup parameters.
 */
contract InitProxy is BaseProxy, IInitProxy {
    /**
     * @dev Initializes the contract and sets the caller as the owner of the contract.
     */
    constructor() {
        assembly {
            sstore(_OWNER_SLOT, caller())
        }
    }

    function contractId() internal pure virtual override returns (bytes32) {
        return bytes32(0);
    }

    /**
     * @notice Initializes the proxy contract with the specified implementation, new owner, and any optional setup parameters.
     * @param implementationAddress The address of the implementation contract
     * @param newOwner The address of the new proxy owner
     * @param params Optional parameters to be passed to the setup function of the implementation contract
     * @dev This function is only callable by the owner of the proxy. If the proxy has already been initialized, it will revert.
     * If the contract ID of the implementation is incorrect, it will also revert. It then stores the implementation address and
     * new owner address in the designated storage slots and calls the setup function on the implementation (if setup params exist).
     */
    function init(
        address implementationAddress,
        address newOwner,
        bytes memory params
    ) external {
        address owner;

        assembly {
            owner := sload(_OWNER_SLOT)
        }

        if (msg.sender != owner) revert NotOwner();
        if (implementation() != address(0)) revert AlreadyInitialized();

        bytes32 id = contractId();
        // Skipping the check if contractId() is not set by an inheriting proxy contract
        if (id != bytes32(0) && IContractIdentifier(implementationAddress).contractId() != id)
            revert InvalidImplementation();

        assembly {
            sstore(_IMPLEMENTATION_SLOT, implementationAddress)
            sstore(_OWNER_SLOT, newOwner)
        }

        if (params.length != 0) {
            (bool success, ) = implementationAddress.delegatecall(
                abi.encodeWithSelector(BaseProxy.setup.selector, params)
            );
            if (!success) revert SetupFailed();
        }
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 99999
  },
  "viaIR": true,
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"name":"AlreadyInitialized","type":"error"},{"inputs":[],"name":"InvalidImplementation","type":"error"},{"inputs":[],"name":"InvalidOwner","type":"error"},{"inputs":[],"name":"NotOwner","type":"error"},{"inputs":[],"name":"SetupFailed","type":"error"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"implementation_","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"implementationAddress","type":"address"},{"internalType":"address","name":"newOwner","type":"address"},{"internalType":"bytes","name":"params","type":"bytes"}],"name":"init","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes","name":"params","type":"bytes"}],"name":"setup","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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