tornado-contracts/contracts/Governance/Testnet/TestnetAdminProxy.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.6.12;

import { OwnableLibrary } from "../libraries/OwnableLibrary.sol";
import { TransparentUpgradeableProxy } from "@openzeppelin/contracts-v3/proxy/TransparentUpgradeableProxy.sol";

/**
 * @dev Enables testnet contracts to be upgraded by the governance and maintainer, since we don't want to waste time
 */
contract TestnetAdminProxy is TransparentUpgradeableProxy {
    modifier onlyOwner {
        require(OwnableLibrary.getOwner() == msg.sender, "Not an owner");
        _;
    }

    constructor(
        address _logic,
        address _admin,
        bytes memory _data
    ) public payable TransparentUpgradeableProxy(_logic, _admin, _data) {
        OwnableLibrary.setOwner(msg.sender);
    }

    function getCurrentOwner() external view returns (address) {
        return OwnableLibrary.getOwner();
    }

    function changeOwner(address newOwner) external onlyOwner {
        OwnableLibrary.setOwner(newOwner);
    }

    function upgradeToOwner(address newImplementation) external onlyOwner {
        _upgradeTo(newImplementation);
    }

    function callToOwner(address target, bytes memory data) external payable onlyOwner {
        (bool success, bytes memory returnData) = target.call{ value: msg.value }(data);
        if (!success) {
            assembly {
                revert(add(32, returnData), mload(returnData))
            }
        }
    }

    function delegateToOwner(address target, bytes memory data) external payable onlyOwner {
        (bool success, bytes memory returnData) = target.delegatecall(data);
        if (!success) {
            assembly {
                revert(add(32, returnData), mload(returnData))
            }
        }
    }
}