Contract Address Details

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

import "./libraries/TransferHelper.sol";
import "./libraries/BytesLibrary.sol";
import "./libraries/StringLibrary.sol";
import "./interfaces/ITransporter.sol";

import "./libraries/upgrade/PauseUpgradeSafe.sol";
import "./libraries/upgrade/OwnerOperatorUpgradeSafe.sol";
import "@openzeppelin/contracts/utils/Counters.sol";

contract NativeVault is OwnerOperatorUpgradeSafe, PauseUpgradeSafe {
    using StringLibrary for string;
    using BytesLibrary for bytes32;
    struct SavedData {
        address sender;
        uint256 value;
    }

    struct SwapData {
        address payable sender;
        string token;
        uint256 blockExpired;
        uint256 amount;
        string nonce;
        uint8 v;
        bytes32 r;
        bytes32 s;
    }

    mapping(string => SavedData) public withdrawData;
    mapping(string => SavedData) public depositData;
    mapping(string => SavedData) public swapData;
    mapping(bytes32 => bool) public swapCompleted;

    event DepositVault(string nonce, address from, uint256 amount);
    event WithdrawVault(string nonce, address to, uint256 amount);
    event SwapToken(string nonce, address from, uint256 amount, string token);

    function initialize() public initializer {
        __OwnerOperator_init();
        __Pause_init();
    }

    /**
     * @dev pauses all deposits, claims. See {Pausable-_pause}.
     */
    function pause() external virtual onlyOwner {
        _pause();
    }

    /**
     * @dev unpauses all deposits, claims. See {Pausable-_pause}.
     */
    function unpause() external virtual onlyOwner {
        _unpause();
    }

    /**
     * @dev withdraw tokens that do not belong to the vault.
     */
    function withdraw(string memory nonce, uint256 amount) external onlyOwner {
        require(amount > 0, "NativeVault: zero out amount");

        TransferHelper.safeTransferETH(msg.sender, amount);
        withdrawData[nonce] = SavedData(msg.sender, amount);

        emit WithdrawVault(nonce, msg.sender, amount);
    }

    receive() external payable {}

    function deposit(string memory nonce) external payable {
        require(msg.value > 0, "NativeVault: zero out amount");
        depositData[nonce] = SavedData(msg.sender, msg.value);

        emit DepositVault(nonce, msg.sender, msg.value);
    }

    function swapToken(SwapData memory data) external payable whenNotPaused {
        require(
            keccak256(abi.encodePacked((data.token))) == keccak256(abi.encodePacked(("kuda"))) ||
                keccak256(abi.encodePacked((data.token))) == keccak256(abi.encodePacked(("merah"))),
            "NativeVault: swap token invalid"
        );
        require(data.amount > 0, "NativeVault: zero out amount");

        bytes32 message = _verifySwap(data);
        swapCompleted[message] = true;

        TransferHelper.safeTransferETH(msg.sender, data.amount);
        swapData[data.nonce] = SavedData(msg.sender, data.amount);

        emit SwapToken(data.nonce, msg.sender, msg.value, data.token);
    }

    function swapAdil(SwapData memory data) external payable whenNotPaused {
        require(
            keccak256(abi.encodePacked((data.token))) == keccak256(abi.encodePacked(("kuda"))) ||
                keccak256(abi.encodePacked((data.token))) == keccak256(abi.encodePacked(("merah"))),
            "NativeVault: swap token invalid"
        );
        bytes32 message = _verifySwap(data);
        swapCompleted[message] = true;
        require(data.amount > 0, "NativeVault: zero out amount");
        TransferHelper.safeTransferETH(address(this), data.amount);
        swapData[data.nonce] = SavedData(msg.sender, data.amount);

        emit SwapToken(data.nonce, msg.sender, data.amount, "adil");
    }

    function _verifySwap(SwapData memory data) internal view returns (bytes32) {
        bytes32 message = keccak256(
            abi.encode(address(this), "Swap", data.sender, data.token, data.blockExpired, data.amount, data.nonce)
        );
        address signer = message.toString().recover(data.v, data.r, data.s);

        require(!swapCompleted[message], "NativeVault: swap completed");
        require(operators[signer], "NativeVault: swap not verify");
        require(block.number < data.blockExpired, "NativeVault: swap expired");

        return message;
    }
}
        

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

import "./ContextUpgradeSafe.sol";

abstract contract OwnableUpgradeSafe is ContextUpgradeSafe {
    // Empty internal constructor, to prevent people from mistakenly deploying
    // an instance of this contract, which should be used via inheritance.

    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal initializer {
        _setOwner(_msgSender());
    }

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

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

    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}
          

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     */
    bool private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Modifier to protect an initializer function from being invoked twice.
     */
    modifier initializer() {
        require(_initializing || !_initialized, "Initializable: contract is already initialized");

        bool isTopLevelCall = !_initializing;
        if (isTopLevelCall) {
            _initializing = true;
            _initialized = true;
        }

        _;

        if (isTopLevelCall) {
            _initializing = false;
        }
    }
}
          

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 */
library Counters {
    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        unchecked {
            counter._value += 1;
        }
    }

    function decrement(Counter storage counter) internal {
        uint256 value = counter._value;
        require(value > 0, "Counter: decrement overflow");
        unchecked {
            counter._value = value - 1;
        }
    }

    function reset(Counter storage counter) internal {
        counter._value = 0;
    }
}
          

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.

/**
 * @dev Wrappers over Solidity's arithmetic operations.
 *
 * NOTE: `SafeMath` is no longer needed starting with Solidity 0.8. The compiler
 * now has built in overflow checking.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        return a + b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        return a * b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator.
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b <= a, errorMessage);
            return a - b;
        }
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a / b;
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}
          

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

interface ITransporter {
    function safeTransferTokenFrom(
        address token_,
        address from_,
        address to_,
        uint256 amount_
    ) external;

    function safeTransferNFT721From(
        address token_,
        address from_,
        address to_,
        uint256 tokenId_
    ) external;

    function safeBurnNFT721From(address token_, uint256 tokenId_) external;

    function safeTransferNFT1155From(
        address token_,
        address from_,
        address to_,
        uint256 tokenId_,
        uint256 amount_
    ) external;

    function safeBurnNFT1155From(
        address token_,
        address from_,
        uint256 tokenId_,
        uint256 amount_
    ) external;

    function safeBurnBatchNFT1155From(
        address token_,
        address from_,
        uint256[] memory tokenId_,
        uint256[] memory amount_
    ) external;
}
          

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev BytesLibrary operations.
 */
library BytesLibrary {
    function toString(bytes32 value) internal pure returns (string memory) {
        bytes memory alphabet = "0123456789abcdef";
        bytes memory str = new bytes(64);
        for (uint256 i = 0; i < 32; i++) {
            str[i * 2] = alphabet[uint8(value[i] >> 4)];
            str[1 + i * 2] = alphabet[uint8(value[i] & 0x0f)];
        }
        return string(str);
    }
}
          

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./UintLibrary.sol";

library StringLibrary {
    using UintLibrary for uint256;

    function append(string memory a, string memory b) internal pure returns (string memory) {
        bytes memory ba = bytes(a);
        bytes memory bb = bytes(b);
        bytes memory bab = new bytes(ba.length + bb.length);
        uint256 k = 0;
        for (uint256 i = 0; i < ba.length; i++) bab[k++] = ba[i];
        for (uint256 i = 0; i < bb.length; i++) bab[k++] = bb[i];
        return string(bab);
    }

    function append(
        string memory a,
        string memory b,
        string memory c
    ) internal pure returns (string memory) {
        bytes memory ba = bytes(a);
        bytes memory bb = bytes(b);
        bytes memory bc = bytes(c);
        bytes memory bbb = new bytes(ba.length + bb.length + bc.length);
        uint256 k = 0;
        for (uint256 i = 0; i < ba.length; i++) bbb[k++] = ba[i];
        for (uint256 i = 0; i < bb.length; i++) bbb[k++] = bb[i];
        for (uint256 i = 0; i < bc.length; i++) bbb[k++] = bc[i];
        return string(bbb);
    }

    function recover(
        string memory message,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address) {
        bytes memory msgBytes = bytes(message);
        bytes memory fullMessage = concat(
            bytes("\x19Ethereum Signed Message:\n"),
            bytes(msgBytes.length.toString()),
            msgBytes,
            new bytes(0),
            new bytes(0),
            new bytes(0),
            new bytes(0)
        );
        return ecrecover(keccak256(fullMessage), v, r, s);
    }

    function concat(
        bytes memory ba,
        bytes memory bb,
        bytes memory bc,
        bytes memory bd,
        bytes memory be,
        bytes memory bf,
        bytes memory bg
    ) internal pure returns (bytes memory) {
        bytes memory resultBytes = new bytes(ba.length + bb.length + bc.length + bd.length + be.length + bf.length + bg.length);
        uint256 k = 0;
        for (uint256 i = 0; i < ba.length; i++) resultBytes[k++] = ba[i];
        for (uint256 i = 0; i < bb.length; i++) resultBytes[k++] = bb[i];
        for (uint256 i = 0; i < bc.length; i++) resultBytes[k++] = bc[i];
        for (uint256 i = 0; i < bd.length; i++) resultBytes[k++] = bd[i];
        for (uint256 i = 0; i < be.length; i++) resultBytes[k++] = be[i];
        for (uint256 i = 0; i < bf.length; i++) resultBytes[k++] = bf[i];
        for (uint256 i = 0; i < bg.length; i++) resultBytes[k++] = bg[i];
        return resultBytes;
    }
}
          

//SPDX-License-Identifier: MIT
pragma solidity >=0.6.0;

// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
    function safeApprove(address token, address to, uint256 value) internal {
        // bytes4(keccak256(bytes('approve(address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            "TransferHelper::safeApprove: approve failed"
        );
    }

    function safeTransfer(address token, address to, uint256 value) internal {
        // bytes4(keccak256(bytes('transfer(address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            "TransferHelper::safeTransfer: transfer failed"
        );
    }

    function safeTransferFrom(address token, address from, address to, uint256 value) internal {
        // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            "TransferHelper::transferFrom: transferFrom failed"
        );
    }

    function safeTransferETH(address to, uint256 value) internal {
        (bool success, ) = to.call{value: value}(new bytes(0));
        require(success, "TransferHelper::safeTransferETH: ETH transfer failed");
    }
}
          

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/utils/math/SafeMath.sol";

library UintLibrary {
    using SafeMath for uint256;

    function toString(uint256 i) internal pure returns (string memory) {
        if (i == 0) {
            return "0";
        }

        uint256 j = i;
        uint256 len;

        while (j != 0) {
            len++;
            j /= 10;
        }

        bytes memory bstr = new bytes(len);

        for (uint256 k = len; k > 0; k--) {
            bstr[k - 1] = bytes1(uint8(48 + (i % 10)));
            i /= 10;
        }

        return string(bstr);
    }

    function bp(uint256 value, uint256 bpValue) internal pure returns (uint256) {
        return value.mul(bpValue).div(10000);
    }
}
          

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

import "@openzeppelin/contracts/proxy/utils/Initializable.sol";

abstract contract ContextUpgradeSafe is Initializable {
    // Empty internal constructor, to prevent people from mistakenly deploying
    // an instance of this contract, which should be used via inheritance.

    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

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

    // Reserved storage space to allow for layout changes in the future.
    uint256[50] private __gap;
}
          

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

import "./OwnableUpgradeSafe.sol";

abstract contract OwnerOperatorUpgradeSafe is OwnableUpgradeSafe {
    // Empty internal constructor, to prevent people from mistakenly deploying
    // an instance of this contract, which should be used via inheritance.

    mapping(address => bool) public operators;
    event AddOperator(address indexed operator);
    event RemoveOperator(address indexed operator);

    function __OwnerOperator_init() internal initializer {
        __Ownable_init();
    }

    modifier operatorOrOwner() {
        require(operators[msg.sender] || owner() == msg.sender, "OwnerOperator: !operator, !owner");
        _;
    }

    modifier onlyOperator() {
        require(operators[msg.sender], "OwnerOperator: !operator");
        _;
    }

    function addOperator(address operator) external virtual onlyOwner {
        require(operator != address(0), "OwnerOperator: operator is the zero address");
        require(!operators[operator], "OwnerOperator: operator existed");
        operators[operator] = true;
        emit AddOperator(operator);
    }

    function removeOperator(address operator) external virtual onlyOwner {
        require(operator != address(0), "OwnerOperator: operator is the zero address");
        require(operators[operator], "OwnerOperator: operator not exist");
        operators[operator] = false;
        emit RemoveOperator(operator);
    }
}
          

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

import "./ContextUpgradeSafe.sol";

abstract contract PauseUpgradeSafe is ContextUpgradeSafe {
    // Empty internal constructor, to prevent people from mistakenly deploying
    // an instance of this contract, which should be used via inheritance.

    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    function __Pause_init() internal initializer {
        _paused = false;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        require(!paused(), "Pausable: paused");
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        require(paused(), "Pausable: not paused");
        _;
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}