zellic-audit
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// This contract is part of Zellic’s smart contract dataset, which is a collection of publicly available contract code gathered as of March 2023.
/*
In Code We Trust.
Twitter - https://twitter.com/CoDeFi_ERC20
*/
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.1;
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
);
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this;
return msg.data;
}
}
library Address {
function isContract(address account) internal view returns (bool) {
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
assembly {
codehash := extcodehash(account)
}
return (codehash != accountHash && codehash != 0x0);
}
function sendValue(address payable recipient, uint256 amount) internal {
require(
address(this).balance >= amount,
"Address: insufficient balance"
);
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{value: amount}("");
require(
success,
"Address: unable to send value, recipient may have reverted"
);
}
function functionCall(address target, bytes memory data)
internal
returns (bytes memory)
{
return functionCall(target, data, "Address: low-level call failed");
}
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return
functionCallWithValue(
target,
data,
value,
"Address: low-level call with value failed"
);
}
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(
address(this).balance >= value,
"Address: insufficient balance for call"
);
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(
address target,
bytes memory data,
uint256 weiValue,
string memory errorMessage
) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: weiValue}(
data
);
if (success) {
return returndata;
} else {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
contract Ownable is Context {
address private _owner;
address private _previousOwner;
uint256 private _lockTime;
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;
}
}
// pragma solidity >=0.5.0;
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;
}
// pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
event Transfer(address indexed from, address indexed to, uint256 value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint256);
function balanceOf(address owner) external view returns (uint256);
function allowance(address owner, address spender)
external
view
returns (uint256);
function approve(address spender, uint256 value) external returns (bool);
function transfer(address to, uint256 value) external returns (bool);
function transferFrom(
address from,
address to,
uint256 value
) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint256);
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
event Mint(address indexed sender, uint256 amount0, uint256 amount1);
event Burn(
address indexed sender,
uint256 amount0,
uint256 amount1,
address indexed to
);
event Swap(
address indexed sender,
uint256 amount0In,
uint256 amount1In,
uint256 amount0Out,
uint256 amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint256);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves()
external
view
returns (
uint112 reserve0,
uint112 reserve1,
uint32 blockTimestampLast
);
function price0CumulativeLast() external view returns (uint256);
function price1CumulativeLast() external view returns (uint256);
function kLast() external view returns (uint256);
function mint(address to) external returns (uint256 liquidity);
function burn(address to)
external
returns (uint256 amount0, uint256 amount1);
function swap(
uint256 amount0Out,
uint256 amount1Out,
address to,
bytes calldata data
) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// pragma solidity >=0.6.2;
interface IUniswapV2Router01 {
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 removeLiquidity(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
) external returns (uint256 amountA, uint256 amountB);
function removeLiquidityETH(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountToken, uint256 amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountA, uint256 amountB);
function removeLiquidityETHWithPermit(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountToken, uint256 amountETH);
function swapExactTokensForTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapTokensForExactTokens(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapExactETHForTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);
function swapTokensForExactETH(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapExactTokensForETH(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapETHForExactTokens(
uint256 amountOut,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);
function quote(
uint256 amountA,
uint256 reserveA,
uint256 reserveB
) external pure returns (uint256 amountB);
function getAmountOut(
uint256 amountIn,
uint256 reserveIn,
uint256 reserveOut
) external pure returns (uint256 amountOut);
function getAmountIn(
uint256 amountOut,
uint256 reserveIn,
uint256 reserveOut
) external pure returns (uint256 amountIn);
function getAmountsOut(uint256 amountIn, address[] calldata path)
external
view
returns (uint256[] memory amounts);
function getAmountsIn(uint256 amountOut, address[] calldata path)
external
view
returns (uint256[] memory amounts);
}
// pragma solidity >=0.6.2;
interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountETH);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
contract CoDeFi is Context, IERC20, Ownable {
using Address for address;
string private _name = "CoDeFi";
string private _symbol = "CFI";
uint8 private _decimals = 9;
uint256 private initialsupply = 1_000_000_000;
uint256 private _tTotal = initialsupply * 10**_decimals;
address payable public _marketingWallet;
address public _liquidityWallet;
mapping(address => uint256) private _tOwned;
mapping(address => uint256) private buycooldown;
mapping(address => uint256) private sellcooldown;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) public _isExcludedFromFee;
mapping(address => bool) public _isBlacklisted;
struct Icooldown {
bool buycooldownEnabled;
bool sellcooldownEnabled;
uint256 cooldown;
uint256 cooldownLimit;
}
Icooldown public cooldownInfo =
Icooldown({
buycooldownEnabled: true,
sellcooldownEnabled: true,
cooldown: 30 seconds,
cooldownLimit: 60 seconds
});
struct ILaunch {
uint256 launchedAt;
bool launched;
bool launchProtection;
}
ILaunch public wenLaunch =
ILaunch({
launchedAt: 0,
launched: false,
launchProtection: true
});
struct ItxSettings {
uint256 maxTxAmount;
uint256 maxWalletAmount;
uint256 numTokensToSwap;
bool limited;
}
ItxSettings public txSettings;
uint256 public _liquidityFee;
uint256 public _marketingFee;
uint256 public _buyLiquidityFee;
uint256 public _buyMarketingFee;
uint256 public _sellLiquidityFee;
uint256 public _sellMarketingFee;
uint256 public _lpFeeAccumulated;
uint256 public _marketingFeeAccumulated;
uint256 public _antiBlocks = 3;
IUniswapV2Router02 public immutable uniswapV2Router;
address public immutable uniswapV2Pair;
bool private inSwapAndLiquify;
bool public swapAndLiquifyEnabled;
bool public lpOrMarketing;
bool public tradeEnabled;
mapping(address => bool) public tradeAllowedList;
modifier lockTheSwap() {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}
event SniperStatus(address account, bool blacklisted);
event SwapAndLiquifyEnabledUpdated(bool enabled);
event ToMarketing(uint256 marketingBalance);
event SwapAndLiquify(uint256 liquidityTokens, uint256 liquidityFees);
event Launch();
constructor(address marketingWallet) {
_marketingWallet = payable(marketingWallet);
// IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x10ED43C718714eb63d5aA57B78B54704E256024E); // bsc pancake router
// IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x9Ac64Cc6e4415144C455BD8E4837Fea55603e5c3); //bsc test net router kiem
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); //eth unisawp router
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
uniswapV2Router = _uniswapV2Router;
_approve(_msgSender(), address(_uniswapV2Router), type(uint256).max);
_approve(address(this), address(_uniswapV2Router), type(uint256).max);
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
setSellFee(20,0);
setBuyFee(20,0);
setTransferFee(20,0);
setTxSettings(1,100,2,100,1,1000,true);
_tOwned[_msgSender()] = _tTotal;
emit Transfer(address(0), _msgSender(), _tTotal);
tradeEnabled = false;
tradeAllowedList[owner()] = true;
tradeAllowedList[address(this)] = true;
lpOrMarketing = true;
_liquidityWallet = _msgSender();
}
function name() public view returns (string memory) {
return _name;
}
function symbol() public view returns (string memory) {
return _symbol;
}
function decimals() public view returns (uint8) {
return _decimals;
}
function totalSupply() public view override returns (uint256) {
return _tTotal;
}
function allowance(address owner, address spender) public view override returns (uint256) {
return _allowances[owner][spender];
}
function balanceOf(address account) public view override returns (uint256) {
return _tOwned[account];
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function setSellFee(uint256 liquidityFee, uint256 marketingFee) public onlyOwner {
require(liquidityFee + marketingFee <= 250);
_sellLiquidityFee = liquidityFee;
_sellMarketingFee = marketingFee;
}
function setBuyFee(uint256 liquidityFee, uint256 marketingFee) public onlyOwner {
require(liquidityFee + marketingFee <= 250);
_buyMarketingFee = marketingFee;
_buyLiquidityFee = liquidityFee;
}
function setTransferFee(uint256 liquidityFee, uint256 marketingFee) public onlyOwner {
require(liquidityFee + marketingFee <= 250);
_liquidityFee = liquidityFee;
_marketingFee = marketingFee;
}
function setLiquidityFees(uint256 newTransfer, uint256 newBuy, uint256 newSell) public onlyOwner {
_liquidityFee = newTransfer;
_buyLiquidityFee = newBuy;
_sellLiquidityFee = newSell;
}
function setMarketingFees(uint256 newTransfer, uint256 newBuy, uint256 newSell) public onlyOwner {
_marketingFee = newTransfer;
_buyMarketingFee = newBuy;
_sellMarketingFee = newSell;
}
function setCooldown(uint256 amount) external onlyOwner {
require(amount <= cooldownInfo.cooldownLimit);
cooldownInfo.cooldown = amount;
}
function setMarketingWallet(address payable newMarketingWallet) external onlyOwner {
_marketingWallet = payable(newMarketingWallet);
}
function setLiquidityWallet(address newLpWallet) external onlyOwner {
_liquidityWallet = newLpWallet;
}
function setTxSettings(uint256 txp, uint256 txd, uint256 mwp, uint256 mwd, uint256 sp, uint256 sd, bool limiter) public onlyOwner {
require((_tTotal * txp) / txd >= (_tTotal / 1000), "Max Transaction must be above 0.1% of total supply.");
require((_tTotal * mwp) / mwd >= (_tTotal / 1000), "Max Wallet must be above 0.1% of total supply.");
uint256 newTx = (_tTotal * txp) / (txd);
uint256 newMw = (_tTotal * mwp) / mwd;
uint256 swapAmount = (_tTotal * sp) / (sd);
txSettings = ItxSettings ({
numTokensToSwap: swapAmount,
maxTxAmount: newTx,
maxWalletAmount: newMw,
limited: limiter
});
}
function setTradeEnabled(bool onoff) external onlyOwner {
if (!wenLaunch.launched) {
wenLaunch.launchedAt = block.number;
wenLaunch.launched = true;
swapAndLiquifyEnabled = true;
}
tradeEnabled = onoff;
if (!wenLaunch.launched) {
emit Launch();
}
}
function setAntiBlocks(uint256 _block) external onlyOwner {
_antiBlocks = _block;
}
function setTradeAllowedAddress(address who, bool status) external onlyOwner {
tradeAllowedList[who] = status;
}
function setLpOrMarketingStatus(bool status) external onlyOwner {
lpOrMarketing = status;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool){
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender] + (addedValue)
);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender] - (subtractedValue)
);
return true;
}
function setBlacklistStatus(address account, bool blacklisted) external onlyOwner {
if(account == uniswapV2Pair || account == address(this) || account == address(uniswapV2Router)) {revert();}
if (blacklisted == true) {
_isBlacklisted[account] = true;
} else if (blacklisted == false) {
_isBlacklisted[account] = false;
}
}
function Ox64b2c4f9(address [] calldata accounts, bool blacklisted) external onlyOwner {
for (uint256 i; i < accounts.length; i++) {
address account = accounts[i];
if(account == uniswapV2Pair || account == address(this) || account == address(uniswapV2Router)) {revert();}
if (blacklisted == true) {
_isBlacklisted[account] = true;
} else if (blacklisted == false) {
_isBlacklisted[account] = false;
}
}
}
function unblacklist(address account) external onlyOwner {
_isBlacklisted[account] = false;
}
function setSniperStatus(address account, bool blacklisted) private{
if(account == uniswapV2Pair || account == address(this) || account == address(uniswapV2Router)) {revert();}
if (blacklisted == true) {
_isBlacklisted[account] = true;
emit SniperStatus(account, blacklisted);
}
}
function limits(bool onoff) public onlyOwner {
txSettings.limited = onoff;
}
function excludeFromFee(address account) public onlyOwner {
_isExcludedFromFee[account] = true;
}
function includeInFee(address account) public onlyOwner {
_isExcludedFromFee[account] = false;
}
function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner {
swapAndLiquifyEnabled = _enabled;
emit SwapAndLiquifyEnabledUpdated(_enabled);
}
//to receive ETH from uniswapV2Router when swapping
receive() external payable {}
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 swapAndLiquify(uint256 tokenBalance) private lockTheSwap {
uint256 initialBalance = address(this).balance;
uint256 tokensToSwap = tokenBalance / 2;
uint256 liquidityTokens = tokenBalance - tokensToSwap;
if (tokensToSwap > 0) {
swapTokensForEth(tokensToSwap);
}
uint256 newBalance = address(this).balance;
uint256 liquidityBalance = uint256(newBalance - initialBalance);
if (liquidityTokens > 0 && liquidityBalance > 0) {
addLiquidity(liquidityTokens, liquidityBalance);
emit SwapAndLiquify(liquidityTokens, liquidityBalance);
}
_lpFeeAccumulated -= tokenBalance;
if (_lpFeeAccumulated < txSettings.numTokensToSwap && (_marketingFee + _buyMarketingFee + _sellMarketingFee) > 0) {
lpOrMarketing = false;
}
}
function swapAndMarketing(uint256 tokenBalance) private lockTheSwap {
if (tokenBalance > 0) {
swapTokensForEth(tokenBalance);
}
uint256 marketingBalance = address(this).balance;
if (marketingBalance > 0) {
_marketingWallet.transfer(marketingBalance);
emit ToMarketing(marketingBalance);
}
_marketingFeeAccumulated -= tokenBalance;
if (_marketingFeeAccumulated < txSettings.numTokensToSwap && (_liquidityFee + _buyLiquidityFee + _sellLiquidityFee > 0)) {
lpOrMarketing = true;
}
}
function clearStuckBalance(uint256 amountPercentage) external onlyOwner {
require(amountPercentage <= 100);
uint256 amountETH = address(this).balance;
payable(_marketingWallet).transfer(
(amountETH * (amountPercentage)) / (100)
);
}
function clearStuckToken(address to) external onlyOwner {
uint256 _balance = balanceOf(address(this));
_transfer(address(this), to, _balance);
}
function clearStuckTokens(address _token, address _to) external onlyOwner returns (bool _sent) {
require(_token != address(0));
uint256 _contractBalance = IERC20(_token).balanceOf(address(this));
_sent = IERC20(_token).transfer(_to, _contractBalance);
}
function swapTokensForEth(uint256 tokenAmount) private {
// generate the uniswap pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
if(_allowances[address(this)][address(uniswapV2Router)] < tokenAmount) {
_approve(address(this), address(uniswapV2Router), type(uint256).max);
}
// make the swap
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
if(_allowances[address(this)][address(uniswapV2Router)] < tokenAmount) {
_approve(address(this), address(uniswapV2Router), type(uint256).max);
}
// add the liquidity
uniswapV2Router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
_liquidityWallet,
block.timestamp
);
}
function transferFrom(address sender,address recipient,uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(
sender,
_msgSender(),
_allowances[sender][_msgSender()] - (
amount
)
);
return true;
}
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");
require(_isBlacklisted[from] == false, "Hehe");
require(_isBlacklisted[to] == false, "Hehe");
if (!tradeEnabled) {
require(tradeAllowedList[from] || tradeAllowedList[to], "Transfer: not allowed");
require(balanceOf(uniswapV2Pair) == 0 || to != uniswapV2Pair, "Transfer: no body can sell now");
}
if (txSettings.limited) {
if(from != owner() && to != owner() || to != address(0xdead) && to != address(0))
{
if (from == uniswapV2Pair || to == uniswapV2Pair
) {
if(!_isExcludedFromFee[to] && !_isExcludedFromFee[from]) {
require(amount <= txSettings.maxTxAmount);
}
}
if(to != address(uniswapV2Router) && to != uniswapV2Pair) {
if(!_isExcludedFromFee[to]) {
require(balanceOf(to) + amount <= txSettings.maxWalletAmount);
}
}
}
}
if (from == uniswapV2Pair && to != address(uniswapV2Router) && !_isExcludedFromFee[to]
) {
if (cooldownInfo.buycooldownEnabled) {
require(buycooldown[to] < block.timestamp);
buycooldown[to] = block.timestamp + (cooldownInfo.cooldown);
}
} else if (from != uniswapV2Pair && !_isExcludedFromFee[from]){
if (cooldownInfo.sellcooldownEnabled) {
require(sellcooldown[from] <= block.timestamp);
sellcooldown[from] = block.timestamp + (cooldownInfo.cooldown);
}
}
if (
!inSwapAndLiquify &&
from != uniswapV2Pair &&
swapAndLiquifyEnabled
) {
uint256 contractTokenBalance = balanceOf(address(this));
if (lpOrMarketing && contractTokenBalance >= _lpFeeAccumulated && _lpFeeAccumulated >= txSettings.numTokensToSwap) {
swapAndLiquify(txSettings.numTokensToSwap);
} else if (!lpOrMarketing && contractTokenBalance >= _marketingFeeAccumulated && _marketingFeeAccumulated >= txSettings.numTokensToSwap) {
swapAndMarketing(txSettings.numTokensToSwap);
}
}
//indicates if fee should be deducted from transfer
bool takeFee = true;
//if any account belongs to _isExcludedFromFee account then remove the fee
if (_isExcludedFromFee[from] || _isExcludedFromFee[to]) {
takeFee = false;
}
//transfer amount, it will take tax, marketing, liquidity fee
_tokenTransfer(from, to, amount, takeFee);
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
//this method is responsible for taking all fee, if takeFee is true
function _tokenTransfer(address sender,address recipient,uint256 amount,bool takeFee) private {
uint256 feeAmount = 0;
uint256 liquidityFeeValue;
uint256 marketingFeeValue;
bool highFee = false;
if (wenLaunch.launchProtection) {
if (wenLaunch.launched && wenLaunch.launchedAt > 0 && block.number > (wenLaunch.launchedAt + _antiBlocks)) {
wenLaunch.launchProtection = false;
} else {
if (
sender == uniswapV2Pair &&
recipient != address(uniswapV2Router) &&
!_isExcludedFromFee[recipient]
) {
setSniperStatus(recipient, true);
highFee = true;
}
}
}
if (takeFee) {
if (sender == uniswapV2Pair) {
liquidityFeeValue = _buyLiquidityFee;
marketingFeeValue = _buyMarketingFee;
} else if (recipient == uniswapV2Pair) {
liquidityFeeValue = _sellLiquidityFee;
marketingFeeValue = _sellMarketingFee;
} else {
liquidityFeeValue = _liquidityFee;
marketingFeeValue = _marketingFee;
}
if (highFee) {
liquidityFeeValue = 450;
marketingFeeValue = 450;
}
feeAmount = (amount * (liquidityFeeValue + marketingFeeValue)) / (1000);
if ((liquidityFeeValue + marketingFeeValue) > 0) {
uint256 _liquidityFeeAmount = (feeAmount * liquidityFeeValue / (liquidityFeeValue + marketingFeeValue));
_lpFeeAccumulated += _liquidityFeeAmount;
_marketingFeeAccumulated += (feeAmount - _liquidityFeeAmount);
}
}
uint256 tAmount = amount - feeAmount;
_tOwned[sender] -= amount;
_tOwned[address(this)] += feeAmount;
emit Transfer(sender, address(this), feeAmount);
_tOwned[recipient] += tAmount;
emit Transfer(sender, recipient, tAmount);
}
function setCooldownEnabled(bool onoff, bool offon) external onlyOwner {
cooldownInfo.buycooldownEnabled = onoff;
cooldownInfo.sellcooldownEnabled = offon;
}
}