Contract

Contract Source Code (Solidity)

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Outline

•  contract Context
•    - function _msgSender()
•    - function _msgData()
•  contract Ownable is Context
•    - function owner()
•    - function isOwner()
•    - function renounceOwnership()
•    - function transferOwnership(address ne ...
•    - function _transferOwnership(address n ...
•  contract KingdomPay is Ownable *
•    - function ()
•    - function take(uint256 code)
•    - function buy(uint256 code)
•    - function setReceiver(address payable ...
•    - function withdraw()

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/**
 *Submitted for verification at Etherscan.io on 2022-01-20
*/

pragma solidity ^0.5.12;

// import "./ownership/Ownable.sol";
contract Context {
    // Empty internal constructor, to prevent people from mistakenly deploying
    // an instance of this contract, which should be used via inheritance.
    constructor () internal { }
    // solhint-disable-previous-line no-empty-blocks

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

    function _msgData() internal view returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

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 () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

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

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(isOwner(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Returns true if the caller is the current owner.
     */
    function isOwner() public view returns (bool) {
        return _msgSender() == _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 onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = 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 onlyOwner {
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     */
    function _transferOwnership(address newOwner) internal {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

contract KingdomPay is Ownable {
    event Buy(uint256 code, uint256 value);
    event Take(uint256 code, uint256 value);
    
    address payable private receiver;

    constructor() public
    {
    }

    function () payable external {}

    function take(uint256 code) public payable {
        emit Take(code, msg.value);
    }

    function buy(uint256 code) public payable {
        emit Buy(code, msg.value);
    }

    function setReceiver(address payable r) public onlyOwner{
        receiver = r;
    }

    function withdraw() public {
        require(_msgSender() == receiver || _msgSender() == owner(), "Incorrect address");
        receiver.transfer(address(this).balance);
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"code","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Buy","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"code","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Take","type":"event"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"constant":false,"inputs":[{"internalType":"uint256","name":"code","type":"uint256"}],"name":"buy","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"isOwner","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"renounceOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address payable","name":"r","type":"address"}],"name":"setReceiver","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"code","type":"uint256"}],"name":"take","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]

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