Contract Source Code:
File 1 of 1 : FkCancer
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0 <0.9.0;
abstract contract Context {
function _msgSender() internal view returns (address payable) {
return payable(msg.sender);
}
function _msgData() internal view returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the token decimals.
*/
function decimals() external view returns (uint8);
/**
* @dev Returns the token symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the token name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the bep token owner.
*/
function getOwner() external view returns (address);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address _owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
interface IFactoryV2 {
event PairCreated(address indexed token0, address indexed token1, address lpPair, uint);
function getPair(address tokenA, address tokenB) external view returns (address lpPair);
function createPair(address tokenA, address tokenB) external returns (address lpPair);
}
interface IV2Pair {
function factory() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
}
interface IRouter01 {
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);
function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}
interface IRouter02 is IRouter01 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
interface AntiSnipe {
function checkUser(address from, address to, uint256 amt) external returns (bool);
function setLaunch(address _initialLpPair, uint32 _liqAddBlock, uint64 _liqAddStamp, uint8 dec) external;
function setLpPair(address pair, bool enabled) external;
function setProtections(bool _as, bool _ag, bool _ab, bool _algo) external;
function setGasPriceLimit(uint256 gas) external;
function removeSniper(address account) external;
function getSniperAmt() external view returns (uint256);
function removeBlacklisted(address account) external;
function isBlacklisted(address account) external view returns (bool);
function transfer(address sender) external;
function setBlacklistEnabled(address account, bool enabled) external;
function setBlacklistEnabledMultiple(address[] memory accounts, bool enabled) external;
function setBuyCooldownEnabled(bool enabled) external;
function setBuyCooldown(uint256 time) external;
function getBuyCooldownTime() external view returns (bool, uint256);
}
contract FkCancer is Context, IERC20 {
// Ownership moved to in-contract for customizability.
address private _owner;
mapping (address => uint256) private _tOwned;
mapping (address => bool) lpPairs;
uint256 private timeSinceLastPair = 0;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _isExcludedFromFees;
mapping (address => bool) private _isExcluded;
address[] private _excluded;
mapping (address => bool) private presaleAddresses;
bool private allowedPresaleExclusion = true;
mapping (address => bool) private _liquidityHolders;
uint256 private startingSupply = 1_000_000_000_000;
string constant private _name = "FkCancer";
string constant private _symbol = "CANCER";
uint8 private _decimals = 9;
uint256 private constant MAX = ~uint256(0);
uint256 private _tTotal = startingSupply * 10**_decimals;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
struct Fees {
uint16 buyFee;
uint16 sellFee;
uint16 transferFee;
}
struct StaticValuesStruct {
uint16 maxBuyTaxes;
uint16 maxSellTaxes;
uint16 maxTransferTaxes;
uint16 masterTaxDivisor;
}
struct Ratios {
uint16 team;
uint16 marketing;
uint16 donation;
uint16 total;
}
Fees public _taxRates = Fees({
buyFee: 1000,
sellFee: 1000,
transferFee: 1000
});
Ratios public _ratios = Ratios({
team: 3,
marketing: 5,
donation: 2,
total: 10
});
StaticValuesStruct public staticVals = StaticValuesStruct({
maxBuyTaxes: 2000,
maxSellTaxes: 2000,
maxTransferTaxes: 2000,
masterTaxDivisor: 10000
});
IRouter02 public dexRouter;
address public lpPair;
address public currentRouter;
// PCS ROUTER
address private pcsV2Router = 0x10ED43C718714eb63d5aA57B78B54704E256024E;
// UNI ROUTER
address private uniswapV2Router = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;
address constant public DEAD = 0x000000000000000000000000000000000000dEaD;
struct TaxWallets {
address payable marketing;
address payable team;
address payable donation;
}
TaxWallets public _taxWallets = TaxWallets({
marketing: payable(0xBDA33274230Db5b221068F134923D7D446a346C5),
team: payable(0xBDA33274230Db5b221068F134923D7D446a346C5),
donation: payable(0x307CC8F84eFccb4d22a4e24229c3641808010877)
});
bool inSwap;
bool public contractSwapEnabled = false;
uint256 private _maxTxAmount = (_tTotal * 5) / 1000;
uint256 private _maxWalletSize = (_tTotal * 2) / 100;
uint256 private swapThreshold = (_tTotal * 5) / 10000;
uint256 private swapAmount = (_tTotal * 25) / 10000;
bool public tradingEnabled = false;
bool public _hasLiqBeenAdded = false;
AntiSnipe antiSnipe;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap);
event ContractSwapEnabledUpdated(bool enabled);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiqudity
);
event SniperCaught(address sniperAddress);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Caller =/= owner.");
_;
}
constructor () payable {
_tOwned[_msgSender()] = _tTotal;
// Set the owner.
_owner = msg.sender;
if (block.chainid == 56 || block.chainid == 97) {
currentRouter = pcsV2Router;
} else if (block.chainid == 1) {
currentRouter = uniswapV2Router;
}
dexRouter = IRouter02(currentRouter);
lpPair = IFactoryV2(dexRouter.factory()).createPair(dexRouter.WETH(), address(this));
lpPairs[lpPair] = true;
_approve(msg.sender, currentRouter, type(uint256).max);
_approve(address(this), currentRouter, type(uint256).max);
_isExcludedFromFees[owner()] = true;
_isExcludedFromFees[address(this)] = true;
_isExcludedFromFees[DEAD] = true;
_liquidityHolders[owner()] = true;
emit Transfer(address(0), _msgSender(), _tTotal);
}
receive() external payable {}
//===============================================================================================================
//===============================================================================================================
//===============================================================================================================
// Ownable removed as a lib and added here to allow for custom transfers and renouncements.
// This allows for removal of ownership privileges from the owner once renounced or transferred.
function owner() public view returns (address) {
return _owner;
}
function transferOwner(address newOwner) external onlyOwner() {
require(newOwner != address(0), "Call renounceOwnership to transfer owner to the zero address.");
require(newOwner != DEAD, "Call renounceOwnership to transfer owner to the zero address.");
setExcludedFromFees(_owner, false);
setExcludedFromFees(newOwner, true);
if(balanceOf(_owner) > 0) {
_transfer(_owner, newOwner, balanceOf(_owner));
}
_owner = newOwner;
emit OwnershipTransferred(_owner, newOwner);
}
function renounceOwnership() public virtual onlyOwner() {
setExcludedFromFees(_owner, false);
_owner = address(0);
emit OwnershipTransferred(_owner, address(0));
}
//===============================================================================================================
//===============================================================================================================
//===============================================================================================================
function totalSupply() external view override returns (uint256) { return _tTotal; }
function decimals() external view override returns (uint8) { return _decimals; }
function symbol() external pure override returns (string memory) { return _symbol; }
function name() external pure override returns (string memory) { return _name; }
function getOwner() external view override returns (address) { return owner(); }
function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][spender]; }
function balanceOf(address account) public view override returns (uint256) {
return _tOwned[account];
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function _approve(address sender, address spender, uint256 amount) private {
require(sender != address(0), "ERC20: Zero Address");
require(spender != address(0), "ERC20: Zero Address");
_allowances[sender][spender] = amount;
emit Approval(sender, spender, amount);
}
function approveContractContingency() public onlyOwner returns (bool) {
_approve(address(this), address(dexRouter), type(uint256).max);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
if (_allowances[sender][msg.sender] != type(uint256).max) {
_allowances[sender][msg.sender] -= amount;
}
return _transfer(sender, recipient, amount);
}
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 setNewRouter(address newRouter) public onlyOwner() {
IRouter02 _newRouter = IRouter02(newRouter);
address get_pair = IFactoryV2(_newRouter.factory()).getPair(address(this), _newRouter.WETH());
if (get_pair == address(0)) {
lpPair = IFactoryV2(_newRouter.factory()).createPair(address(this), _newRouter.WETH());
}
else {
lpPair = get_pair;
}
dexRouter = _newRouter;
_approve(address(this), address(dexRouter), type(uint256).max);
}
function setLpPair(address pair, bool enabled) external onlyOwner {
if (enabled == false) {
lpPairs[pair] = false;
antiSnipe.setLpPair(pair, false);
} else {
if (timeSinceLastPair != 0) {
require(block.timestamp - timeSinceLastPair > 3 days, "3 Day cooldown.!");
}
lpPairs[pair] = true;
timeSinceLastPair = block.timestamp;
antiSnipe.setLpPair(pair, true);
}
}
function changeRouterContingency(address router) external onlyOwner {
require(!_hasLiqBeenAdded);
currentRouter = router;
}
function getCirculatingSupply() public view returns (uint256) {
return (_tTotal - (balanceOf(DEAD) + balanceOf(address(0))));
}
function isExcludedFromFees(address account) public view returns(bool) {
return _isExcludedFromFees[account];
}
function setExcludedFromFees(address account, bool enabled) public onlyOwner {
_isExcludedFromFees[account] = enabled;
}
function setInitializer(address initializer) external onlyOwner {
require(!_hasLiqBeenAdded, "Liquidity is already in.");
require(initializer != address(this), "Can't be self.");
antiSnipe = AntiSnipe(initializer);
}
function setBlacklistEnabled(address account, bool enabled) external onlyOwner {
antiSnipe.setBlacklistEnabled(account, enabled);
}
function setBlacklistEnabledMultiple(address[] memory accounts, bool enabled) external onlyOwner {
antiSnipe.setBlacklistEnabledMultiple(accounts, enabled);
}
function removeBlacklisted(address account) external onlyOwner {
antiSnipe.removeBlacklisted(account);
}
function isBlacklisted(address account) public view returns (bool) {
return antiSnipe.isBlacklisted(account);
}
function getSniperAmt() public view returns (uint256) {
return antiSnipe.getSniperAmt();
}
function removeSniper(address account) external onlyOwner {
antiSnipe.removeSniper(account);
}
function setProtectionSettings(bool _antiSnipe, bool _antiGas, bool _antiBlock, bool _algo) external onlyOwner {
antiSnipe.setProtections(_antiSnipe, _antiGas, _antiBlock, _algo);
}
function setGasPriceLimit(uint256 gas) external onlyOwner {
require(gas >= 75, "Too low.");
antiSnipe.setGasPriceLimit(gas);
}
function setBuyCooldownEnabled(bool enabled) external onlyOwner {
antiSnipe.setBuyCooldownEnabled(enabled);
}
function setBuyCooldown(uint256 time) external onlyOwner {
require(time <= 5 minutes, "Cannot be above 5 min cooldown.");
antiSnipe.setBuyCooldown(time);
}
function getBuyCooldownTime() public view returns (bool, uint256) {
return antiSnipe.getBuyCooldownTime();
}
function setTaxes(uint16 buyFee, uint16 sellFee, uint16 transferFee) external onlyOwner {
require(buyFee <= staticVals.maxBuyTaxes
&& sellFee <=staticVals. maxSellTaxes
&& transferFee <= staticVals.maxTransferTaxes,
"Cannot exceed maximums.");
_taxRates.buyFee = buyFee;
_taxRates.sellFee = sellFee;
_taxRates.transferFee = transferFee;
}
function setRatios(uint16 team, uint16 marketing, uint16 donation) external onlyOwner {
_ratios.team = team;
_ratios.marketing = marketing;
_ratios.donation = donation;
_ratios.total = team + marketing + donation;
}
function setMaxTxPercent(uint256 percent, uint256 divisor) external onlyOwner {
require((_tTotal * percent) / divisor >= (_tTotal / 1000), "Max Transaction amt must be above 0.1% of total supply.");
_maxTxAmount = (_tTotal * percent) / divisor;
}
function setMaxWalletSize(uint256 percent, uint256 divisor) external onlyOwner {
require((_tTotal * percent) / divisor >= (_tTotal / 1000), "Max Wallet amt must be above 0.1% of total supply.");
_maxWalletSize = (_tTotal * percent) / divisor;
}
function getMaxTX() public view returns (uint256) {
return _maxTxAmount / (10**_decimals);
}
function getMaxWallet() public view returns (uint256) {
return _maxWalletSize / (10**_decimals);
}
function setSwapSettings(uint256 thresholdPercent, uint256 thresholdDivisor, uint256 amountPercent, uint256 amountDivisor) external onlyOwner {
swapThreshold = (_tTotal * thresholdPercent) / thresholdDivisor;
swapAmount = (_tTotal * amountPercent) / amountDivisor;
}
function setWallets(address payable marketing) external onlyOwner {
_taxWallets.marketing = payable(marketing);
}
function setContractSwapEnabled(bool _enabled) public onlyOwner {
contractSwapEnabled = _enabled;
emit ContractSwapEnabledUpdated(_enabled);
}
function _hasLimits(address from, address to) private view returns (bool) {
return from != owner()
&& to != owner()
&& !_liquidityHolders[to]
&& !_liquidityHolders[from]
&& to != DEAD
&& to != address(0)
&& from != address(this);
}
function _transfer(address from, address to, uint256 amount) internal returns (bool) {
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");
if(_hasLimits(from, to)) {
if(!tradingEnabled) {
revert("Trading not yet enabled!");
}
if(lpPairs[from] || lpPairs[to]){
require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
}
if(to != currentRouter && !lpPairs[to]) {
require(balanceOf(to) + amount <= _maxWalletSize, "Transfer amount exceeds the maxWalletSize.");
}
}
bool takeFee = true;
if(_isExcludedFromFees[from] || _isExcludedFromFees[to]){
takeFee = false;
}
if (lpPairs[to]) {
if (!inSwap
&& contractSwapEnabled
) {
uint256 contractTokenBalance = balanceOf(address(this));
if (contractTokenBalance >= swapThreshold) {
if(contractTokenBalance >= swapAmount) { contractTokenBalance = swapAmount; }
contractSwap(contractTokenBalance);
}
}
}
return _finalizeTransfer(from, to, amount, takeFee);
}
function contractSwap(uint256 contractTokenBalance) private lockTheSwap {
if (_ratios.total == 0)
return;
if(_allowances[address(this)][address(dexRouter)] != type(uint256).max) {
_allowances[address(this)][address(dexRouter)] = type(uint256).max;
}
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = dexRouter.WETH();
dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
contractTokenBalance,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
if (address(this).balance > 0) {
uint256 amountBNB = address(this).balance;
_taxWallets.team.transfer((amountBNB * _ratios.team) / _ratios.total);
_taxWallets.donation.transfer((amountBNB * _ratios.donation) / _ratios.total);
_taxWallets.marketing.transfer(address(this).balance);
}
}
function _checkLiquidityAdd(address from, address to) private {
require(!_hasLiqBeenAdded, "Liquidity already added and marked.");
if (!_hasLimits(from, to) && to == lpPair) {
_liquidityHolders[from] = true;
_hasLiqBeenAdded = true;
if(address(antiSnipe) == address(0)){
antiSnipe = AntiSnipe(address(this));
}
contractSwapEnabled = true;
emit ContractSwapEnabledUpdated(true);
}
}
function enableTrading() public onlyOwner {
require(!tradingEnabled, "Trading already enabled!");
require(_hasLiqBeenAdded, "Liquidity must be added.");
if(address(antiSnipe) == address(0)){
antiSnipe = AntiSnipe(address(this));
}
try antiSnipe.setLaunch(lpPair, uint32(block.number), uint64(block.timestamp), _decimals) {} catch {}
tradingEnabled = true;
}
function sweepContingency() external onlyOwner {
require(!_hasLiqBeenAdded, "Cannot call after liquidity.");
payable(owner()).transfer(address(this).balance);
}
function _finalizeTransfer(address from, address to, uint256 amount, bool takeFee) private returns (bool) {
if (!_hasLiqBeenAdded) {
_checkLiquidityAdd(from, to);
if (!_hasLiqBeenAdded && _hasLimits(from, to)) {
revert("Only owner can transfer at this time.");
}
}
if (_hasLimits(from, to)) {
bool checked;
try antiSnipe.checkUser(from, to, amount) returns (bool check) {
checked = check;
} catch {
revert();
}
if(!checked) {
revert();
}
}
_tOwned[from] -= amount;
uint256 amountReceived = (takeFee) ? takeTaxes(from, to, amount) : amount;
_tOwned[to] += amountReceived;
emit Transfer(from, to, amountReceived);
return true;
}
function takeTaxes(address from, address to, uint256 amount) internal returns (uint256) {
uint256 currentFee;
if (from == lpPair) {
currentFee = _taxRates.buyFee;
} else if (to == lpPair) {
currentFee = _taxRates.sellFee;
} else {
currentFee = _taxRates.transferFee;
}
uint256 feeAmount = amount * currentFee / staticVals.masterTaxDivisor;
_tOwned[address(this)] += feeAmount;
emit Transfer(from, address(this), feeAmount);
return amount - feeAmount;
}
}