文件 1 的 1：zkOS.sol
pragma solidity 0.8.20;
interface IERC20 {
event Transfer(address indexed sender, address indexed recipient, uint256 amount);
event Approval(address indexed owner, address indexed spender, uint256 amount);
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
contract Ownable is Context {
address private _contractOwner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
address msgSender = _msgSender();
_contractOwner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view returns (address) {
return _contractOwner;
}
modifier onlyOwner() {
require(_contractOwner == _msgSender(), "Ownable: caller is not the owner");
_;
}
function transferOwnership(address newOwner) public onlyOwner {
_updateOwnership(newOwner);
}
function _updateOwnership(address newOwner) internal {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_contractOwner, newOwner);
_contractOwner = newOwner;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_contractOwner, address(0));
_contractOwner = address(0);
}
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IUniswapV2Router02 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 tokenAmount,
uint256 minETHAmount,
address[] calldata path,
address to,
uint256 deadline
) external;
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint tokenDesired,
uint tokenMin,
uint ethMin,
address to,
uint deadline
) external payable returns (uint tokenAmount, uint ethAmount, uint liquidity);
}
contract zkOS is Context, IERC20, Ownable {
string private constant _tokenName = "zkOS";
string private constant _tokenSymbol = "ZKOS";
uint8 private constant _tokenDecimals = 18;
uint256 private constant _totalSupply = 100000000 * 10**_tokenDecimals;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => uint256) private _excludedAccounts;
uint256 private constant _minSwapAmount = 40000 * 10**_tokenDecimals;
uint256 private _maxSwapAmount = 800000 * 10**_tokenDecimals;
uint256 public maxTxAmount = 200000 * 10**_tokenDecimals;
uint256 public maxWalletBalance = 300000 * 10**_tokenDecimals;
uint256 private _startBlock;
uint256 buyFee = 30;
uint256 sellFee = 30;
IUniswapV2Router02 private _swapRouter;
address public liquidityPair;
address zkOSXOO1;
address zkOSXOO2;
address zkOSXOO3;
bool private _tradingIsEnabled = false;
event TradingActivated(address indexed owner, address liquidityPair, uint256 startBlock);
event ExcludedAccountsModified(address indexed account, uint256 value);
event LimitsRemoved(uint256 maxTxAmount, uint256 maxWalletBalance);
constructor() {
zkOSXOO1 = 0xAAA4b4068C0A5511A159C573bB0C1DDd0386c49D;
zkOSXOO2 = 0xa5b6cDc831743130f83b4EBA2b17c579A848C48b;
zkOSXOO3 = 0x4f15584c4f61F9B9153700d4a2830a037aD5A1aC;
_balances[msg.sender] = _totalSupply;
_excludedAccounts[msg.sender] = 1;
_excludedAccounts[address(this)] = 1;
emit Transfer(address(0), _msgSender(), _totalSupply);
}
function name() public pure returns (string memory) {
return _tokenName;
}
function symbol() public pure returns (string memory) {
return _tokenSymbol;
}
function decimals() public pure returns (uint8) {
return _tokenDecimals;
}
function totalSupply() public pure override returns (uint256) {
return _totalSupply;
}
function getTaxeRates() external view returns (uint256 buyTax, uint256 sellTax) {
buyTax = buyFee;
sellTax = sellFee;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_executeTransfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address _owner, address spender) public view override returns (uint256) {
return _allowances[_owner][spender];
}
function approve(address spender, uint256 amount) public override returns (bool) {
_setTokenAllowance(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_executeTransfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_setTokenAllowance(sender, _msgSender(), currentAllowance - amount);
}
}
return true;
}
function _setTokenAllowance(address _owner, address spender, uint256 amount) private {
require(_owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[_owner][spender] = amount;
emit Approval(_owner, spender, amount);
}
function activeTrading() external onlyOwner {
require(!_tradingIsEnabled, "Trading is already enabled");
_swapRouter = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
liquidityPair = IUniswapV2Factory(_swapRouter.factory()).createPair(address(this), _swapRouter.WETH());
_setTokenAllowance(address(this), address(_swapRouter), _totalSupply);
_swapRouter.addLiquidityETH{value: address(this).balance}(
address(this),
balanceOf(address(this)),
0,
0,
owner(),
block.timestamp
);
IERC20(liquidityPair).approve(address(_swapRouter), type(uint).max);
_tradingIsEnabled = true;
_startBlock = block.number;
emit TradingActivated(owner(), liquidityPair, _startBlock);
}
function modifyExcludedAccounts(address account, uint256 value) external onlyOwner {
_excludedAccounts[account] = value;
emit ExcludedAccountsModified(account, value);
}
function removeLimits() external onlyOwner {
maxTxAmount = _totalSupply;
maxWalletBalance = _totalSupply;
emit LimitsRemoved(maxTxAmount, maxWalletBalance);
}
function updateTaxes(uint256 newTxRate) external onlyOwner {
require(newTxRate <= buyFee && newTxRate <= sellFee, "Tax cannot be increased");
buyFee = newTxRate;
sellFee = newTxRate;
}
function _executeTokenTransfer(address from, address to, uint256 amount, uint256 taxRate) private {
uint256 taxAmount = (amount * taxRate) / 100;
uint256 transferAmount = amount - taxAmount;
_balances[from] -= amount;
_balances[to] += transferAmount;
_balances[address(this)] += taxAmount;
emit Transfer(from, to, transferAmount);
}
function _executeTransfer(address from, address to, uint256 amount) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(amount > 0, "ERC20: transfer amount must be greater than zero");
uint256 taxRate = 0;
if (_excludedAccounts[from] == 0 && _excludedAccounts[to] == 0) {
require(_tradingIsEnabled, "Trading is not enabled yet");
require(amount <= maxTxAmount, "Transaction amount exceeds the maximum limit");
if (to != liquidityPair && to != address(0xdead)) {
require(balanceOf(to) + amount <= maxWalletBalance, "Recipient wallet exceeds the maximum limit");
}
if (block.number < _startBlock + 3) {
taxRate = (from == liquidityPair) ? 30 : 30;
} else {
if (from == liquidityPair) {
taxRate = buyFee;
} else if (to == liquidityPair) {
uint256 contractTokenBalance = balanceOf(address(this));
if (contractTokenBalance > _minSwapAmount) {
uint256 swapAmount = _maxSwapAmount;
if (contractTokenBalance > amount) contractTokenBalance = amount;
if (contractTokenBalance > swapAmount) contractTokenBalance = swapAmount;
_swapTokensForEth(contractTokenBalance);
}
taxRate = sellFee;
}
}
}
_executeTokenTransfer(from, to, amount, taxRate);
}
function withdrawEth() external onlyOwner {
(bool success, ) = owner().call{value: address(this).balance}("");
require(success, "ETH withdrawal failed");
}
function withdrawTokens() external onlyOwner {
uint256 contractTokenBalance = balanceOf(address(this));
require(contractTokenBalance > 0, "No tokens to withdraw");
_executeTokenTransfer(address(this), owner(), contractTokenBalance, 0);
}
function manualSwapExecution(uint256 percent) external onlyOwner {
uint256 contractTokenBalance = balanceOf(address(this));
uint256 swapAmount = (percent * contractTokenBalance) / 100;
_swapTokensForEth(swapAmount);
}
function _swapTokensForEth(uint256 tokenAmount) private {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = _swapRouter.WETH();
_setTokenAllowance(address(this), address(_swapRouter), tokenAmount);
_swapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
uint256 contractEthBalance = address(this).balance;
uint256 XOO1 = (contractEthBalance * 45) / 100;
uint256 XOO2 = (contractEthBalance * 45) / 100;
uint256 XOO3 = (contractEthBalance * 10) / 100;
(bool success, ) = zkOSXOO1.call{value: XOO1}("");
(success, ) = zkOSXOO2.call{value: XOO2}("");
(success, ) = zkOSXOO3.call{value: XOO3}("");
require(success, "Transfer failed");
}
receive() external payable {}
}
