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// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity =0.8.24;

import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";

import {Enum} from "./interfaces/external/ISafe.sol";
import {IGuard} from "./interfaces/external/IGuard.sol";

/// @notice Rumpel Safe Guard with a blocklist for the Rumpel Wallet.
/// @dev Compatible with Safe v1.3.0-libs.0, the last Safe Ethereum mainnet release, so it can't use module execution hooks.
contract RumpelGuard is Ownable, IGuard {
    mapping(address => mapping(bytes4 => AllowListState)) public allowedCalls; // target => functionSelector => allowListState

    address public immutable signMessageLib;

    enum AllowListState {
        OFF,
        ON,
        PERMANENTLY_ON
    }

    event SetCallAllowed(address indexed target, bytes4 indexed functionSelector, AllowListState allowListState);

    error CallNotAllowed(address target, bytes4 functionSelector);
    error PermanentlyOn();

    constructor(address _signMessageLib) Ownable(msg.sender) {
        signMessageLib = _signMessageLib;
    }

    /// @notice Called by the Safe contract before a transaction is executed.
    /// @dev Safe user execution hook that blocks all calls by default, including delegatecalls, unless explicitly added to the allowlist.
    function checkTransaction(
        address to,
        uint256,
        bytes memory data,
        Enum.Operation operation,
        uint256,
        uint256,
        uint256,
        address,
        address payable,
        bytes memory,
        address
    ) external view {
        // Disallow calls with function selectors that will be padded with 0s.
        // Allow calls with data length 0 for ETH transfers.
        if (data.length > 0 && data.length < 4) {
            revert CallNotAllowed(to, bytes4(data));
        }

        bytes4 functionSelector = bytes4(data);

        // Only allow delegatecalls to the signMessageLib.
        if (operation == Enum.Operation.DelegateCall) {
            if (to == signMessageLib) {
                return;
            } else {
                revert CallNotAllowed(to, functionSelector);
            }
        }

        bool toSafe = msg.sender == to;

        if (toSafe) {
            // If this transaction is to a Safe itself, to e.g. update config, we check the zero address for allowed calls.
            if (allowedCalls[address(0)][functionSelector] == AllowListState.OFF) {
                revert CallNotAllowed(to, functionSelector);
            }
        } else if (data.length == 0) {
            // If this transaction is a simple ETH transfer, we check the zero address with the zero function selector to see if it's allowed.
            if (allowedCalls[address(0)][bytes4(0)] == AllowListState.OFF) {
                revert CallNotAllowed(address(0), bytes4(0));
            }
        } else {
            // For all other calls, we check the allowedCalls mapping normally.
            if (allowedCalls[to][functionSelector] == AllowListState.OFF) {
                revert CallNotAllowed(to, functionSelector);
            }
        }
    }

    /// @notice Called by the Safe contract after a transaction is executed.
    /// @dev No-op.
    function checkAfterExecution(bytes32, bool) external view {}

    function supportsInterface(bytes4 interfaceId) public view returns (bool) {
        return interfaceId == type(IGuard).interfaceId;
    }

    // Admin ----

    /// @notice Enable or disable Safes from calling a function.
    /// @dev Scoped to <address>.<selector>, so all calls to added address <> selector pairs are allowed.
    /// @dev Function arguments aren't checked, so any arguments are allowed for the enabled functions.
    /// @dev Calls can be enabled, disabled, or permanently enabled, that last of which guarantees the call can't be rugged.
    function setCallAllowed(address target, bytes4 functionSelector, AllowListState allowListState)
        external
        onlyOwner
    {
        if (allowedCalls[target][functionSelector] == AllowListState.PERMANENTLY_ON) {
            revert PermanentlyOn();
        }

        allowedCalls[target][functionSelector] = allowListState;
        emit SetCallAllowed(target, functionSelector, allowListState);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is set to the address provided by the deployer. This can
 * later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity =0.8.24;

import {Enum} from "./ISafe.sol";

interface IGuard {
    function checkTransaction(
        address to,
        uint256 value,
        bytes memory data,
        Enum.Operation operation,
        uint256 safeTxGas,
        uint256 baseGas,
        uint256 gasPrice,
        address gasToken,
        address payable refundReceiver,
        bytes memory signatures,
        address msgSender
    ) external;

    function checkAfterExecution(bytes32 txHash, bool success) external;
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity =0.8.24;

library Enum {
    enum Operation {
        Call,
        DelegateCall
    }
}

interface ISafe {
    function getTransactionHash(
        address to,
        uint256 value,
        bytes calldata data,
        Enum.Operation operation,
        uint256 safeTxGas,
        uint256 baseGas,
        uint256 gasPrice,
        address gasToken,
        address refundReceiver,
        uint256 _nonce
    ) external view returns (bytes32);

    function execTransaction(
        address to,
        uint256 value,
        bytes calldata data,
        Enum.Operation operation,
        uint256 safeTxGas,
        uint256 baseGas,
        uint256 gasPrice,
        address gasToken,
        address payable refundReceiver,
        bytes memory signatures
    ) external payable returns (bool success);

    function execTransactionFromModule(address to, uint256 value, bytes memory data, Enum.Operation operation)
        external
        returns (bool success);

    function setup(
        address[] calldata _owners,
        uint256 _threshold,
        address to,
        bytes calldata data,
        address fallbackHandler,
        address paymentToken,
        uint256 payment,
        address payable paymentReceiver
    ) external;

    function enableModule(address module) external;

    function disableModule(address prevModule, address module) external;

    function setGuard(address guard) external;

    function getGuard() external view returns (address);

    function getOwners() external view returns (address[] memory);

    function getThreshold() external view returns (uint256);

    function isModuleEnabled(address module) external view returns (bool);

    function nonce() external view returns (uint256);

    function execute(address to, uint256 value, bytes memory data, Enum.Operation operation, uint256 txGas)
        external
        returns (bool success);

    function domainSeparator() external view returns (bytes32);

    function signedMessages(bytes32 messageHash) external returns (uint256);

    function addOwnerWithThreshold(address owner, uint256 _threshold) external;

    function removeOwner(address prevOwner, address owner, uint256 _threshold) external;

    function swapOwner(address prevOwner, address oldOwner, address newOwner) external;

    // Fallback handler functions

    function isValidSignature(bytes32 _dataHash, bytes calldata _signature) external view returns (bytes4);

    function isValidSignature(bytes calldata _data, bytes calldata _signature) external view returns (bytes4);
}

{
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "appendCBOR": true,
    "bytecodeHash": "ipfs",
    "useLiteralContent": false
  },
  "optimizer": {
    "enabled": true,
    "runs": 100
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "remappings": [
    "@openzeppelin/=lib/openzeppelin-contracts/",
    "solmate/=lib/solmate/src/",
    "forge-std/=lib/forge-std/src/",
    "safe-smart-account/=safe-smart-account/",
    "create3-factory/=lib/point-tokenization-vault/lib/create3-factory/",
    "ds-test/=lib/solmate/lib/ds-test/src/",
    "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    "forge-safe/=lib/point-tokenization-vault/lib/forge-safe/",
    "openzeppelin-contracts-upgradeable/=lib/point-tokenization-vault/lib/openzeppelin-contracts-upgradeable/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "openzeppelin-foundry-upgrades/=lib/point-tokenization-vault/lib/openzeppelin-foundry-upgrades/src/",
    "point-tokenization-vault/=lib/point-tokenization-vault/contracts/",
    "solady/=lib/point-tokenization-vault/lib/solady/src/",
    "solidity-stringutils/=lib/point-tokenization-vault/lib/openzeppelin-foundry-upgrades/lib/solidity-stringutils/",
    "surl/=lib/point-tokenization-vault/lib/forge-safe/lib/surl/"
  ],
  "viaIR": false
}

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00000000000000000000000098ffbbf51bb33a056b08ddf711f289936aaff717

-----Decoded View---------------
Arg [0] : _signMessageLib (address): 0x98FFBBF51bb33A056B08ddf711f289936AafF717

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000098ffbbf51bb33a056b08ddf711f289936aaff717