NativeTokenReceiver

{{
  "language": "Solidity",
  "sources": {
    "@openzeppelin/contracts/access/Ownable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../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.
 *
 * 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. 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 {
        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);
    }
}
"
    },
    "@openzeppelin/contracts/security/ReentrancyGuard.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == _ENTERED;
    }
}
"
    },
    "@openzeppelin/contracts/utils/Context.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (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;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}
"
    },
    "contracts/NativeTokenReceiver.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";

/**
 * @title NativeTokenReceiver
 * @dev A contract that receives native token deposits and allows authorized admin to withdraw to NATIVE_INTERACTIVE_ADDRESS
 * This contract acts as a secure vault for native tokens (ETH, PLS, etc.)
 */
contract NativeTokenReceiver is Ownable, ReentrancyGuard {
    
    // Events
    event NativeTokenDeposited(
        address indexed depositor,
        uint256 amount,
        uint256 timestamp
    );
    
    event NativeTokenWithdrawn(
        address indexed to,
        uint256 amount,
        uint256 timestamp
    );
    
    event AuthorizedOperatorUpdated(
        address indexed operator,
        bool authorized
    );

    // Mapping to track authorized operators (admin addresses)
    mapping(address => bool) public authorizedOperators;
    
    // Total deposits counter
    uint256 public totalDeposits;
    
    // Total withdrawals counter
    uint256 public totalWithdrawals;

    modifier onlyAuthorized() {
        require(authorizedOperators[msg.sender] || msg.sender == owner(), "Not authorized");
        _;
    }

    constructor() {
        // Owner is automatically authorized
        authorizedOperators[msg.sender] = true;
    }

    /**
     * @dev Add or remove authorized operators (admin addresses)
     * @param operator The address to authorize/unauthorize
     * @param authorized Whether to authorize or not
     */
    function setAuthorizedOperator(address operator, bool authorized) external onlyOwner {
        authorizedOperators[operator] = authorized;
        emit AuthorizedOperatorUpdated(operator, authorized);
    }

    /**
     * @dev Receive native tokens (ETH, PLS, etc.)
     * This function is called when the contract receives native tokens
     */
    receive() external payable {
        if (msg.value > 0) {
            totalDeposits += msg.value;
            emit NativeTokenDeposited(msg.sender, msg.value, block.timestamp);
        }
    }

    /**
     * @dev Fallback function to receive native tokens
     */
    fallback() external payable {
        if (msg.value > 0) {
            totalDeposits += msg.value;
            emit NativeTokenDeposited(msg.sender, msg.value, block.timestamp);
        }
    }

    /**
     * @dev Withdraw native tokens to NATIVE_INTERACTIVE_ADDRESS
     * @param amount The amount to withdraw (0 = withdraw all)
     * @param to The destination address (must be NATIVE_INTERACTIVE_ADDRESS)
     */
    function withdrawNativeTokens(uint256 amount, address to) external onlyAuthorized nonReentrant {
        require(to != address(0), "Invalid destination address");
        
        uint256 contractBalance = address(this).balance;
        require(contractBalance > 0, "No native tokens to withdraw");
        
        uint256 withdrawAmount = amount == 0 ? contractBalance : amount;
        require(withdrawAmount <= contractBalance, "Insufficient balance");
        require(withdrawAmount > 0, "Amount must be greater than 0");
        
        totalWithdrawals += withdrawAmount;
        
        // Transfer native tokens to destination
        (bool success, ) = payable(to).call{value: withdrawAmount}("");
        require(success, "Native token transfer failed");
        
        emit NativeTokenWithdrawn(to, withdrawAmount, block.timestamp);
    }

    /**
     * @dev Emergency withdraw function (only owner)
     * @param amount The amount to withdraw (0 = withdraw all)
     * @param to The destination address
     */
    function emergencyWithdraw(uint256 amount, address to) external onlyOwner nonReentrant {
        require(to != address(0), "Invalid destination address");
        
        uint256 contractBalance = address(this).balance;
        require(contractBalance > 0, "No native tokens to withdraw");
        
        uint256 withdrawAmount = amount == 0 ? contractBalance : amount;
        require(withdrawAmount <= contractBalance, "Insufficient balance");
        require(withdrawAmount > 0, "Amount must be greater than 0");
        
        totalWithdrawals += withdrawAmount;
        
        // Transfer native tokens to destination
        (bool success, ) = payable(to).call{value: withdrawAmount}("");
        require(success, "Native token transfer failed");
        
        emit NativeTokenWithdrawn(to, withdrawAmount, block.timestamp);
    }

    /**
     * @dev Get the current native token balance of this contract
     * @return The balance in wei
     */
    function getNativeBalance() external view returns (uint256) {
        return address(this).balance;
    }

    /**
     * @dev Get contract statistics
     * @return _totalDeposits Total amount deposited
     * @return _totalWithdrawals Total amount withdrawn
     * @return currentBalance Current contract balance
     */
    function getContractStats() external view returns (
        uint256 _totalDeposits,
        uint256 _totalWithdrawals,
        uint256 currentBalance
    ) {
        return (
            totalDeposits,
            totalWithdrawals,
            address(this).balance
        );
    }

    /**
     * @dev Check if an address is authorized to withdraw
     * @param operator The address to check
     * @return Whether the address is authorized
     */
    function isAuthorized(address operator) external view returns (bool) {
        return authorizedOperators[operator] || operator == owner();
    }
}
"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": true,
      "runs": 200
    },
    "viaIR": true,
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    }
  }
}}