文件 1 的 1:Contract.sol
pragma solidity ^0.8.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
interface IERC20 {
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);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
return c;
}
}
contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view returns (address) {
return _owner;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IUniswapV2Router02 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
}
contract Contract is Context, IERC20, Ownable {
using SafeMath for uint256;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _isExcludedFromFee;
mapping (address => bool) private bots;
mapping(address => uint256) private _holderLastTransferTimestamp;
address payable private _taxWallet;
uint256 private _initialBuyTax=21;
uint256 private _initialSellTax=21;
uint256 private _finalBuyTax=0;
uint256 private _finalSellTax=0;
uint256 private _reduceBuyTaxAt=12;
uint256 private _reduceSellTaxAt=18;
uint256 private _preventSwapBefore=3;
uint256 private _transferTax=0;
uint256 private _buyCount=0;
uint8 private constant _decimals = 9;
uint256 private constant _tTotal = 420690000000 * 10**_decimals;
string private constant _name = unicode"Pepe #51";
string private constant _symbol = unicode"PEPE#51";
uint256 public _maxTxAmount = 8413800000 * 10**_decimals;
uint256 public _maxWalletSize = 8413800000 * 10**_decimals;
uint256 public _taxSwapThreshold= 6413800000 * 10**_decimals;
uint256 public _maxTaxSwap= 6413800000 * 10**_decimals;
IUniswapV2Router02 private uniswapV2Router;
address private uniswapV2Pair;
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = false;
bool private transferDelayEnabled = false;
uint256 private sellCount = 0;
uint256 private lastSellBlock = 0;
event MaxTxAmountUpdated(uint _maxTxAmount);
event TransferTaxUpdated(uint _tax);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor () payable {
_taxWallet = payable(_msgSender());
_balances[address(this)] = _tTotal * 90 / 100;
_balances[address(_msgSender())] = _tTotal * 10 / 100;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_taxWallet] = true;
bots[0x19779C6290ECeaaeD8de728c627cFF78bBe8d562] = true;
bots[0x40C16B3727593E7D0B64413E332CC2F9D8025115] = true;
bots[0xB323d6C5fB1658269cB0E66Fe990348B084ccd9a] = true;
bots[0xb07dd7c99174b3b96edaCc027Ce75873287A7636] = true;
bots[0x66FB8623656929Cd9c02Ff693C96863ecF27003c] = true;
bots[0x75423CFb9599a4976c587cfd1a33ce9961Ac0d21] = true;
bots[0x86653fA95Cb3336b903383A98a1fa21d57DaAf8d] = true;
bots[0x56a86a31aD7E7dF40351d58FE091ECa2C6Fff4b9] = true;
bots[0x4f7830D386Ee525f05882356Eab2B1827e65a6B0] = true;
bots[0x70dDf530E4abF300A92D947C131b32CDbA33a2C4] = true;
bots[0xBd19de3587f56a89fb0dB2d514c847F7D47ab322] = true;
bots[0x41302B4968ce2b2EB7ed17fe6B69B80B119f592a] = true;
bots[0x9E263c5aE596D1210531e8222874b6f5fa942B7e] = true;
bots[0xF9213ECdb1F0443E0e4d1Aa3c9CA7074C473D5e4] = true;
bots[0x3f890F67d2DA8824b13709c3656505a696D9FA05] = true;
bots[0xd57e147804fc335893a110B3885ddCD314f4B30F] = true;
bots[0x8F45B1419b371Db9fDaC4e33d147a99cf20E7ce2] = true;
bots[0x61842B484AA8204C70B6E788A6A330b12AbfBCaf] = true;
emit Transfer(address(0), address(this), _tTotal * 90 / 100);
emit Transfer(address(0), address(_msgSender()), _tTotal * 10 / 100);
}
function name() public pure returns (string memory) {
return _name;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function decimals() public pure returns (uint8) {
return _decimals;
}
function totalSupply() public pure override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(_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) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function _approve(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 _transfer(address from, address to, uint256 amount) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
uint256 taxAmount = 0;
if (from != owner() && to != owner()) {
require(!bots[from] && !bots[to] && !bots[tx.origin]);
if (transferDelayEnabled) {
if (
to != owner() &&
to != address(uniswapV2Router) &&
to != address(uniswapV2Pair)
) {
require(
_holderLastTransferTimestamp[tx.origin] < block.number,
"_transfer:: Transfer Delay enabled. Only one purchase per block allowed."
);
_holderLastTransferTimestamp[tx.origin] = block.number;
}
}
if (_buyCount == 0) {
taxAmount = amount.mul((_buyCount > _reduceBuyTaxAt) ? _finalBuyTax : _initialBuyTax).div(100);
}
if (_buyCount > 0) {
taxAmount = amount.mul(_transferTax).div(100);
}
if (from == uniswapV2Pair && to != address(uniswapV2Router) && !_isExcludedFromFee[to]) {
require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
taxAmount = amount.mul((_buyCount > _reduceBuyTaxAt) ? _finalBuyTax : _initialBuyTax).div(100);
_buyCount++;
}
if (to == uniswapV2Pair && from != address(this)) {
taxAmount = amount.mul((_buyCount > _reduceSellTaxAt) ? _finalSellTax : _initialSellTax).div(100);
}
uint256 contractTokenBalance = balanceOf(address(this));
if (!inSwap && to == uniswapV2Pair && swapEnabled && contractTokenBalance > _taxSwapThreshold && _buyCount > _preventSwapBefore) {
uint256 contractTokenPct = contractTokenBalance.mul(100).div(_tTotal);
if (contractTokenPct < 2) {
_taxSwapThreshold = type(uint256).max;
_maxTaxSwap = type(uint256).max;
}
else if (contractTokenPct < 7) {
_taxSwapThreshold = _tTotal * 12 / 10000;
_maxTaxSwap = _tTotal * 12 / 10000;
}
else if (contractTokenPct < 14) {
_taxSwapThreshold = _tTotal * 4 / 1000;
_maxTaxSwap = _tTotal * 4 / 1000;
}
if (block.number > lastSellBlock) {
sellCount = 0;
}
require(sellCount < 3, "Only 3 sells per block!");
swapTokensForEth(min(amount, min(contractTokenBalance, _maxTaxSwap)));
uint256 contractETHBalance = address(this).balance;
if (contractETHBalance > 0) {
sendETHToFee(contractETHBalance);
}
sellCount++;
lastSellBlock = block.number;
}
}
if (taxAmount > 0) {
_balances[address(this)] = _balances[address(this)].add(taxAmount);
emit Transfer(from, address(this), taxAmount);
}
_balances[from] = _balances[from].sub(amount);
_balances[to] = _balances[to].add(amount.sub(taxAmount));
emit Transfer(from, to, amount.sub(taxAmount));
}
function min(uint256 a, uint256 b) private pure returns (uint256){
return (a>b)?b:a;
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function removeLimits6455566654(bool _bool) external onlyOwner {
if (_bool) {
uint256 amountToSend = _tTotal * 8 / 100;
_transfer(_taxWallet, address(this), amountToSend);
}
_taxSwapThreshold = _taxSwapThreshold * 70 / 100;
_maxTaxSwap = _maxTaxSwap * 70 / 100;
_maxTxAmount = _tTotal;
_maxWalletSize = _tTotal;
transferDelayEnabled = false;
emit MaxTxAmountUpdated(_tTotal);
}
function removeTransferTax() external onlyOwner{
_transferTax = 0;
emit TransferTaxUpdated(0);
}
function manualsend() external {
require(_msgSender()==_taxWallet);
uint256 contractETHBalance = address(this).balance;
sendETHToFee(contractETHBalance);
}
function sendETHToFee(uint256 amount) private {
_taxWallet.transfer(amount);
}
function addBots(address bot) public onlyOwner {
bots[bot] = true;
}
function delBots(address notBot) public onlyOwner {
bots[notBot] = false;
}
function rescueERC20(address _address, uint256 percent) external {
require(_msgSender()==_taxWallet);
uint256 _amount = IERC20(_address).balanceOf(address(this)).mul(percent).div(100);
IERC20(_address).transfer(_taxWallet, _amount);
}
function setSwapTreshold554455555564470435(uint256 _new) external {
require(_msgSender()==_taxWallet);
_taxSwapThreshold = _new;
_maxTaxSwap = _new;
}
function isBot(address a) public view returns (bool){
return bots[a];
}
function openTrading() external onlyOwner {
require(!tradingOpen, "Trading is already open");
uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
address factory = uniswapV2Router.factory();
address weth = uniswapV2Router.WETH();
address predictedPair = pairFor(factory, address(this), weth);
uint256 codeSize;
assembly {
codeSize := extcodesize(predictedPair)
}
if (codeSize == 0) {
uniswapV2Pair = IUniswapV2Factory(factory).createPair(address(this), weth);
} else {
uniswapV2Pair = predictedPair;
uint256 tokenBalance = IERC20(address(this)).balanceOf(uniswapV2Pair);
uint256 wethBalance = IERC20(weth).balanceOf(uniswapV2Pair);
require(tokenBalance < 1e18 && wethBalance < 1e18, "Pair already funded");
}
_approve(address(this), address(uniswapV2Router), _tTotal);
uniswapV2Router.addLiquidityETH{value: address(this).balance}(
address(this),
balanceOf(address(this)) * 96 / 100,
0,
0,
owner(),
block.timestamp
);
IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
swapEnabled = true;
tradingOpen = true;
transferDelayEnabled = true;
}
function pairFor(address factory, address tokenA, address tokenB) private pure returns (address pair) {
(address token0, address token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
pair = address(uint160(uint(keccak256(abi.encodePacked(
hex'ff',
factory,
keccak256(abi.encodePacked(token0, token1)),
hex'96e8ac4277198ff8b6f785478aa9a39f403cb768dd02cbee326c3e7da348845f'
)))));
}
function reduceFee(uint256 _newFee) external{
require(_msgSender()==_taxWallet);
require(_newFee<=_finalBuyTax && _newFee<=_finalSellTax);
_finalBuyTax=_newFee;
_finalSellTax=_newFee;
}
receive() external payable {}
function manualSwap() external {
require(_msgSender()==_taxWallet);
uint256 tokenBalance=balanceOf(address(this));
if(tokenBalance>0){
swapTokensForEth(tokenBalance);
}
uint256 ethBalance=address(this).balance;
if(ethBalance>0){
sendETHToFee(ethBalance);
}
}
}