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// SPDX-License-Identifier: MIT
pragma solidity 0.8.15;

import { ISemver } from "src/universal/interfaces/ISemver.sol";

/// @custom:legacy true
/// @custom:proxied true
/// @custom:predeployed 0x4200000000000000000000000000000000000002
/// @title DeployerWhitelist
/// @notice DeployerWhitelist is a legacy contract that was originally used to act as a whitelist of
///         addresses allowed to the Optimism network. The DeployerWhitelist has since been
///         disabled, but the code is kept in state for the sake of full backwards compatibility.
///         As of the Bedrock upgrade, the DeployerWhitelist is completely unused by the Optimism
///         system and could, in theory, be removed entirely.
contract DeployerWhitelist is ISemver {
    /// @notice Address of the owner of this contract. Note that when this address is set to
    ///         address(0), the whitelist is disabled.
    address public owner;

    /// @notice Mapping of deployer addresses to boolean whitelist status.
    mapping(address => bool) public whitelist;

    /// @notice Emitted when the owner of this contract changes.
    /// @param oldOwner Address of the previous owner.
    /// @param newOwner Address of the new owner.
    event OwnerChanged(address oldOwner, address newOwner);

    /// @notice Emitted when the whitelist status of a deployer changes.
    /// @param deployer    Address of the deployer.
    /// @param whitelisted Boolean indicating whether the deployer is whitelisted.
    event WhitelistStatusChanged(address deployer, bool whitelisted);

    /// @notice Emitted when the whitelist is disabled.
    /// @param oldOwner Address of the final owner of the whitelist.
    event WhitelistDisabled(address oldOwner);

    /// @notice Blocks functions to anyone except the contract owner.
    modifier onlyOwner() {
        require(msg.sender == owner, "DeployerWhitelist: function can only be called by the owner of this contract");
        _;
    }

    /// @notice Semantic version.
    /// @custom:semver 1.1.1-beta.1
    string public constant version = "1.1.1-beta.1";

    /// @notice Adds or removes an address from the deployment whitelist.
    /// @param _deployer      Address to update permissions for.
    /// @param _isWhitelisted Whether or not the address is whitelisted.
    function setWhitelistedDeployer(address _deployer, bool _isWhitelisted) external onlyOwner {
        whitelist[_deployer] = _isWhitelisted;
        emit WhitelistStatusChanged(_deployer, _isWhitelisted);
    }

    /// @notice Updates the owner of this contract.
    /// @param _owner Address of the new owner.
    function setOwner(address _owner) external onlyOwner {
        // Prevent users from setting the whitelist owner to address(0) except via
        // enableArbitraryContractDeployment. If you want to burn the whitelist owner, send it to
        // any other address that doesn't have a corresponding knowable private key.
        require(_owner != address(0), "DeployerWhitelist: can only be disabled via enableArbitraryContractDeployment");

        emit OwnerChanged(owner, _owner);
        owner = _owner;
    }

    /// @notice Permanently enables arbitrary contract deployment and deletes the owner.
    function enableArbitraryContractDeployment() external onlyOwner {
        emit WhitelistDisabled(owner);
        owner = address(0);
    }

    /// @notice Checks whether an address is allowed to deploy contracts.
    /// @param _deployer Address to check.
    /// @return Whether or not the address can deploy contracts.
    function isDeployerAllowed(address _deployer) external view returns (bool) {
        return (owner == address(0) || whitelist[_deployer]);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/// @title ISemver
/// @notice ISemver is a simple contract for ensuring that contracts are
///         versioned using semantic versioning.
interface ISemver {
    /// @notice Getter for the semantic version of the contract. This is not
    ///         meant to be used onchain but instead meant to be used by offchain
    ///         tooling.
    /// @return Semver contract version as a string.
    function version() external view returns (string memory);
}

{
  "evmVersion": "london",
  "metadata": {
    "bytecodeHash": "none",
    "useLiteralContent": false
  },
  "optimizer": {
    "enabled": true,
    "runs": 999999
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  },
  "remappings": [
    "@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
    "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    "@openzeppelin/contracts-v5/=lib/openzeppelin-contracts-v5/contracts/",
    "@rari-capital/solmate/=lib/solmate/",
    "@lib-keccak/=lib/lib-keccak/contracts/lib/",
    "@solady/=lib/solady/src/",
    "forge-std/=lib/forge-std/src/",
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "safe-contracts/=lib/safe-contracts/contracts/",
    "kontrol-cheatcodes/=lib/kontrol-cheatcodes/src/",
    "gelato/=lib/automate/contracts/",
    "@solady-test/=lib/lib-keccak/lib/solady/test/",
    "automate/=lib/automate/contracts/",
    "erc4626-tests/=lib/openzeppelin-contracts-v5/lib/erc4626-tests/",
    "hardhat/=lib/automate/node_modules/hardhat/",
    "lib-keccak/=lib/lib-keccak/contracts/",
    "openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/",
    "openzeppelin-contracts-v5/=lib/openzeppelin-contracts-v5/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "prb-test/=lib/automate/lib/prb-test/src/",
    "prb/-est/=lib/automate/lib/prb-test/src/",
    "solady/=lib/solady/",
    "solmate/=lib/solmate/src/"
  ],
  "viaIR": false
}

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