// SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;

import {Ownable} from "./Ownable.sol";

/**
 * @title Proxy
 * @dev Based on Origin Protocol InitializeGovernedUpgradeabilityProxy
 * https://github.com/OriginProtocol/origin-dollar/blob/master/contracts/contracts/proxies/InitializeGovernedUpgradeabilityProxy.sol
 * @author Origin Protocol Inc
 */
contract Proxy is Ownable {
    /**
     * @notice Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @notice Emitted when the implementation is upgraded.
     * @param implementation Address of the new implementation.
     */
    event Upgraded(address indexed implementation);

    /**
     * @notice Contract initializer with Owner enforcement
     * @param _logic Address of the initial implementation.
     * @param _initOwner Address of the initial Owner.
     * @param _data Data to send as msg.data to the implementation to initialize
     * the proxied contract.
     * It should include the signature and the parameters of the function to be
     * called, as described in
     * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
     * This parameter is optional, if no data is given the initialization call
     * to proxied contract will be skipped.
     */
    function initialize(address _logic, address _initOwner, bytes calldata _data) public onlyOwner {
        require(_implementation() == address(0));
        assert(IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
        _upgradeTo(_logic);
        if (_data.length > 0) {
            (bool success,) = _logic.delegatecall(_data);
            require(success);
        }
        _setOwner(_initOwner);
    }

    /**
     * @notice The address of the proxy admin. This is also the contract owner.
     */
    function admin() external view returns (address) {
        return _owner();
    }

    /**
     * @notice The address of the implementation contract.
     */
    function implementation() external view returns (address) {
        return _implementation();
    }

    /**
     * @notice Upgrade the backing implementation of the proxy.
     * Only the admin can call this function.
     * @param newImplementation Address of the new implementation.
     */
    function upgradeTo(address newImplementation) external onlyOwner {
        _upgradeTo(newImplementation);
    }

    /**
     * @notice Upgrade the backing implementation of the proxy and call a function
     * on the new implementation.
     * This is useful to initialize the proxied contract.
     * @param newImplementation Address of the new implementation.
     * @param data Data to send as msg.data in the low level call.
     * It should include the signature and the parameters of the function to be called, as described in
     * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
     */
    function upgradeToAndCall(address newImplementation, bytes calldata data) external onlyOwner {
        _upgradeTo(newImplementation);
        (bool success,) = newImplementation.delegatecall(data);
        require(success);
    }

    /**
     * @notice Fallback function.
     * Implemented entirely in `_delegate`.
     */
    fallback() external payable {
        _delegate(_implementation());
    }

    /**
     * @dev Delegates execution to an implementation contract.
     * This is a low level function that doesn't return to its internal call site.
     * It will return to the external caller whatever the implementation returns.
     * @param _impl Address to delegate.
     */
    function _delegate(address _impl) internal {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            // Copy msg.data. We take full control of memory in this inline assembly
            // block because it will not return to Solidity code. We overwrite the
            // Solidity scratch pad at memory position 0.
            calldatacopy(0, 0, calldatasize())

            // Call the implementation.
            // out and outsize are 0 because we don't know the size yet.
            let result := delegatecall(gas(), _impl, 0, calldatasize(), 0, 0)

            // Copy the returned data.
            returndatacopy(0, 0, returndatasize())

            switch result
            // delegatecall returns 0 on error.
            case 0 { revert(0, returndatasize()) }
            default { return(0, returndatasize()) }
        }
    }

    /**
     * @dev Returns the current implementation.
     * @return impl Address of the current implementation
     */
    function _implementation() internal view returns (address impl) {
        bytes32 slot = IMPLEMENTATION_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            impl := sload(slot)
        }
    }

    /**
     * @dev Upgrades the proxy to a new implementation.
     * @param newImplementation Address of the new implementation.
     */
    function _upgradeTo(address newImplementation) internal {
        require(newImplementation.code.length > 0, "Cannot set a proxy implementation to a non-contract address");
        bytes32 slot = IMPLEMENTATION_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(slot, newImplementation)
        }
        emit Upgraded(newImplementation);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;

/**
 * @title Base contract that provides ownership control
 * @author Origin Protocol Inc
 */
contract Ownable {
    /// @notice The slot used to store the owner of the contract.
    /// This is also used as the proxy admin.
    /// keccak256(“eip1967.proxy.admin”) - 1 per EIP 1967
    bytes32 internal constant OWNER_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    event AdminChanged(address previousAdmin, address newAdmin);

    constructor() {
        assert(OWNER_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1));
        _setOwner(msg.sender);
    }

    /// @notice The contract owner and proxy admin.
    function owner() external view returns (address) {
        return _owner();
    }

    /// @notice Set the owner and proxy admin of the contract.
    /// @param newOwner The address of the new owner.
    function setOwner(address newOwner) external onlyOwner {
        _setOwner(newOwner);
    }

    function _owner() internal view returns (address ownerOut) {
        bytes32 position = OWNER_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            ownerOut := sload(position)
        }
    }

    function _setOwner(address newOwner) internal {
        emit AdminChanged(_owner(), newOwner);
        bytes32 position = OWNER_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(position, newOwner)
        }
    }

    function _onlyOwner() internal view {
        require(msg.sender == _owner(), "ARM: Only owner can call this function.");
    }

    modifier onlyOwner() {
        _onlyOwner();
        _;
    }
}

{
  "remappings": [
    "contracts/=src/contracts/",
    "script/=script/",
    "test/=test/",
    "utils/=src/contracts/utils/",
    "forge-std/=dependencies/forge-std-1.9.3/src/",
    "@openzeppelin/contracts/=dependencies/@openzeppelin-contracts-5.0.2/",
    "@openzeppelin/contracts-upgradeable/=dependencies/@openzeppelin-contracts-upgradeable-5.0.2/",
    "@solmate/=dependencies/solmate-6.7.0/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "shanghai",
  "viaIR": false,
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"previousAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","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":"_logic","type":"address"},{"internalType":"address","name":"_initOwner","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"setOwner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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