Address io16pvy5zs9ldyl2h28j3vh5cdr2yrkv8kxutv4ax

// File: @openzeppelin/contracts/utils/Context.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @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;
    }
}

// File: @openzeppelin/contracts/access/Ownable.sol


// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

/**
 * @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.
 *
 * By default, the owner account will be the one that deploys the contract. 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;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @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 {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing 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 {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _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);
    }
}

// File: contracts/interfaces/MultiSign.sol



pragma solidity ^0.8.0;

interface MultiSign {
    function submitTransaction(address destination, uint256 value, bytes memory data) external returns(uint256 transactionId);
    function confirmTransaction(uint256 transactionId) external;
}

// File: contracts/interfaces/TimeLock.sol



pragma solidity ^0.8.0;

interface TimeLock {
    function queueTransaction(address target, uint256 value, string memory signature, bytes memory data, uint256 eta) external returns(bytes32);
    function executeTransaction(address target, uint256 value, string memory signature, bytes memory data, uint256 eta) external returns(bytes memory);
}

// File: contracts/interfaces/CToken.sol



pragma solidity ^0.8.0;

interface CToken {
    function _reduceReserves(uint reduceAmount) external returns (uint);
    function isNativeToken() external pure returns (bool);
    function underlying() external view returns (address);
}

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol


// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);
}

// File: contracts/SubmitTool.sol



pragma solidity ^0.8.0;





contract SubmitTool is Ownable {

    MultiSign public multisign;
    address public timelock;
    uint256 public startTransactionId;
    uint256 public length;

    event QueueSubmitted(uint256 transactionId, uint256 length);
    event ExecuteSubmitted(uint256 transactionId, uint256 length);

    constructor(address _multisign, address _timelock) {
        require(_multisign != address(0) && _timelock != address(0), "invalid param");

        multisign = MultiSign(_multisign);
        timelock = _timelock;
    }

    function submit(address[] memory ftokens, uint[] memory amounts, address receiver, uint256 eta)
            external onlyOwner returns(uint256 queueId, uint256 executeId) {
        require(ftokens.length == amounts.length, "Inconsistent length");
        
         for (uint8 i = 0; i < ftokens.length; i++) {
            bytes memory ftokenAbi = abi.encodeWithSelector(CToken._reduceReserves.selector, amounts[i]);
         
            uint256 trasactionId = multisign.submitTransaction(ftokens[i], 0, ftokenAbi);
            if (i == 0) {
                startTransactionId = queueId = trasactionId;
            }
        }

        for (uint8 i = 0; i < ftokens.length; i++) {
            CToken cTokenInstance = CToken(ftokens[i]);
            if (cTokenInstance.isNativeToken()) {
                multisign.submitTransaction(receiver, amounts[i], '');
            } else {
                bytes memory transferAbi = abi.encodeWithSelector(IERC20.transfer.selector, receiver, amounts[i]);
                multisign.submitTransaction(cTokenInstance.underlying(), 0, transferAbi);
            }
        }
        emit ExecuteSubmitted(queueId, ftokens.length);  
        length = ftokens.length;
    }
}

// File: contracts/ConfirmTool.sol



pragma solidity ^0.8.0;





contract ConfirmTool is Ownable {
    MultiSign public multisign;

    constructor(address _multisign) {
        require(_multisign != address(0), "invalid param");

        multisign = MultiSign(_multisign);
    }

    function confirmTxByIds(uint256[] memory ids) external onlyOwner {
        for (uint256 i = 0; i < ids.length; i++) {
            multisign.confirmTransaction(ids[i]);
        }
    }

    function confirmTxByScope(uint256 from, uint256 to) external onlyOwner {
        for (uint256 i = from; i <= to; i++) {
            multisign.confirmTransaction(i);
        }
    }
}

[{"inputs":[{"internalType":"address","name":"_multisign","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[{"internalType":"uint256[]","name":"ids","type":"uint256[]"}],"name":"confirmTxByIds","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"from","type":"uint256"},{"internalType":"uint256","name":"to","type":"uint256"}],"name":"confirmTxByScope","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"multisign","outputs":[{"internalType":"contract MultiSign","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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