Contract Source Code:
File 1 of 1 : JOHN
// SPDX-License-Identifier: MIT
/*
Website: https://McAfee.One
Telegram: https://t.me/mcafee_erc
Twitter: https://twitter.com/mcafee_erc
**/
pragma solidity ^0.8.15;
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
);
}
contract Ownable is Context {
address private _owner;
address private _previousOwner;
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;
}
}
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;
}
}
interface IUniswapV2Factory {
function createPair(
address tokenA,
address tokenB
) external returns (address pair);
}
interface IUniswapV2Router02 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
}
contract JOHN is Context, IERC20, Ownable {
using SafeMath for uint256;
string private constant _name = "McAfee";
string private constant _symbol = "MCAFEE";
uint8 private constant _decimals = 9;
mapping(address => uint256) private _rOwned;
mapping(address => uint256) private _tOwned;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedFromFee;
uint256 private constant MAX = ~uint256(0);
uint256 private constant _tTotal = 100000000000 * 10 ** 9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
//Buy Fee
uint256 private _feeOnBuy = 0;
uint256 private _taxOnBuy = 22;
//Sell Fee
uint256 private _feeOnSell = 0;
uint256 private _taxOnSell = 22;
uint256 public totalFees;
//Original Fee
uint256 private _redisFee = _feeOnSell;
uint256 private _taxFee = _taxOnSell;
uint256 private _previousredisFee = _redisFee;
uint256 private _previoustaxFee = _taxFee;
uint256 public liquidityFee = 2;
uint256 public marketingFee = 20;
address public LpReceiver =
payable(0xD91f300Ad6BBdB7E9f8c7d259530eB1341176D58);
mapping(address => uint256) private cooldown;
address payable private _developmentWalletAddress =
payable(0xD91f300Ad6BBdB7E9f8c7d259530eB1341176D58);
address payable private _marketingWalletAddress =
payable(0xD91f300Ad6BBdB7E9f8c7d259530eB1341176D58);
IUniswapV2Router02 public uniswapV2Router;
address public uniswapV2Pair;
bool private tradingOpen = false;
bool private inSwap = false;
bool private swapEnabled = true;
uint256 public _maxTxAmount = 2000000000 * 10 ** 9;
uint256 public _maxWalletSize = 2000000000 * 10 ** 9;
uint256 public _swapTokensAtAmount = 10000 * 10 ** 9;
event MaxTxAmountUpdated(uint256 _maxTxAmount);
modifier lockTheSwap() {
inSwap = true;
_;
inSwap = false;
}
constructor() {
_rOwned[_msgSender()] = _rTotal;
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_developmentWalletAddress] = true;
_isExcludedFromFee[_marketingWalletAddress] = 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 tokenFromReflection(_rOwned[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 tokenFromReflection(
uint256 rAmount
) private view returns (uint256) {
require(
rAmount <= _rTotal,
"Amount must be less than total reflections"
);
uint256 currentRate = _getRate();
return rAmount.div(currentRate);
}
function removeAllFee() private {
if (_redisFee == 0 && _taxFee == 0) return;
_previousredisFee = _redisFee;
_previoustaxFee = _taxFee;
_redisFee = 0;
_taxFee = 0;
}
function restoreAllFee() private {
_redisFee = _previousredisFee;
_taxFee = _previoustaxFee;
}
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");
if (from != owner() && to != owner()) {
//Trade start check
if (!tradingOpen) {
require(
from == owner(),
"TOKEN: This account cannot send tokens until trading is enabled"
);
}
require(amount <= _maxTxAmount, "TOKEN: Max Transaction Limit");
if (to != uniswapV2Pair) {
require(
balanceOf(to) + amount < _maxWalletSize,
"TOKEN: Balance exceeds wallet size!"
);
}
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= _swapTokensAtAmount;
if (
canSwap &&
!inSwap &&
from != uniswapV2Pair &&
swapEnabled &&
!_isExcludedFromFee[from] &&
!_isExcludedFromFee[to]
) {
if (contractTokenBalance > 0) {
uint256 halfLP = liquidityFee.div(2);
uint256 Fee = liquidityFee.add(marketingFee);
uint256 FeeToSwap = Fee.sub(halfLP);
uint256 amountToSwap = contractTokenBalance
.mul(FeeToSwap)
.div(Fee);
uint256 beforeETHBalance = address(this).balance;
swapTokensForEth(amountToSwap);
uint256 afterETHBalance = address(this).balance.sub(
beforeETHBalance
);
uint256 halfLPToken = balanceOf((address(this)));
uint256 liquidityShare = halfLP.mul(100).div(FeeToSwap);
uint256 amountToLiquify = afterETHBalance
.mul(liquidityShare)
.div(100);
if (amountToLiquify > 0) {
addLiquidityETH(amountToLiquify, halfLPToken);
}
if (address(this).balance > 0) {
sendETHToFee(address(this).balance);
}
}
}
}
bool takeFee = true;
//Transfer Tokens
if (
(_isExcludedFromFee[from] || _isExcludedFromFee[to]) ||
(from != uniswapV2Pair && to != uniswapV2Pair)
) {
takeFee = false;
} else {
//Set Fee for Buys
if (from == uniswapV2Pair && to != address(uniswapV2Router)) {
_redisFee = _feeOnBuy;
_taxFee = _taxOnBuy;
}
//Set Fee for Sells
if (to == uniswapV2Pair && from != address(uniswapV2Router)) {
_redisFee = _feeOnSell;
_taxFee = _taxOnSell;
}
}
_tokenTransfer(from, to, amount, takeFee);
}
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 addLiquidityETH(uint256 _ethAmount, uint256 _tokenAmount) private {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), _tokenAmount);
uniswapV2Router.addLiquidityETH{value: _ethAmount}(
address(this),
_tokenAmount,
0,
0,
LpReceiver,
block.timestamp
);
}
function sendETHToFee(uint256 amount) private {
payable(_marketingWalletAddress).transfer(amount);
}
function setTrading(bool _tradingOpen) public onlyOwner {
tradingOpen = _tradingOpen;
}
function _tokenTransfer(
address sender,
address recipient,
uint256 amount,
bool takeFee
) private {
if (!takeFee) removeAllFee();
_transferStandard(sender, recipient, amount);
if (!takeFee) restoreAllFee();
}
function _transferStandard(
address sender,
address recipient,
uint256 tAmount
) private {
(
uint256 rAmount,
uint256 rTransferAmount,
uint256 rFee,
uint256 tTransferAmount,
uint256 tFee,
uint256 tTeam
) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeTeam(tTeam);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function transferEth() public onlyOwner {
payable(msg.sender).transfer(address(this).balance);
}
function _takeTeam(uint256 tTeam) private {
uint256 currentRate = _getRate();
uint256 rTeam = tTeam.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rTeam);
}
function _reflectFee(uint256 rFee, uint256 tFee) private {
_rTotal = _rTotal.sub(rFee);
_tFeeTotal = _tFeeTotal.add(tFee);
}
receive() external payable {}
function _getValues(
uint256 tAmount
)
public
view
returns (uint256, uint256, uint256, uint256, uint256, uint256)
{
(uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(
tAmount,
_redisFee,
_taxFee
);
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(
tAmount,
tFee,
tTeam,
currentRate
);
return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam);
}
function _getTValues(
uint256 tAmount,
uint256 redisFee,
uint256 taxFee
) private pure returns (uint256, uint256, uint256) {
uint256 tFee = tAmount.mul(redisFee).div(100);
uint256 tTeam = tAmount.mul(taxFee).div(100);
uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam);
return (tTransferAmount, tFee, tTeam);
}
function _getRValues(
uint256 tAmount,
uint256 tFee,
uint256 tTeam,
uint256 currentRate
) private pure returns (uint256, uint256, uint256) {
uint256 rAmount = tAmount.mul(currentRate);
uint256 rFee = tFee.mul(currentRate);
uint256 rTeam = tTeam.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam);
return (rAmount, rTransferAmount, rFee);
}
function _getRate() private view returns (uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply.div(tSupply);
}
function _getCurrentSupply() private view returns (uint256, uint256) {
uint256 rSupply = _rTotal;
uint256 tSupply = _tTotal;
if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}
function setFee(
uint256 redisFeeOnBuy,
uint256 redisFeeOnSell,
uint256 _liquidityFee,
uint256 _marketingFee
) public onlyOwner {
_feeOnBuy = redisFeeOnBuy;
_feeOnSell = redisFeeOnSell;
_liquidityFee = liquidityFee;
_marketingFee = marketingFee;
_taxOnSell = _liquidityFee.add(_marketingFee);
_taxOnBuy = _liquidityFee.add(_marketingFee);
totalFees = _feeOnBuy + _feeOnSell + _taxOnBuy + _taxOnSell;
require(totalFees <= 100, "");
}
//Set minimum tokens required to swap.
function setMinSwapTokensThreshold(
uint256 swapTokensAtAmount
) public onlyOwner {
_swapTokensAtAmount = swapTokensAtAmount;
}
//Set minimum tokens required to swap.
function toggleSwap(bool _swapEnabled) public onlyOwner {
swapEnabled = _swapEnabled;
}
function noLimit() external onlyOwner {
_maxTxAmount = _tTotal;
_maxWalletSize = _tTotal;
}
//Set max buy amount
function setMaxTxnAmount(uint256 maxTxAmount) public onlyOwner {
_maxTxAmount = maxTxAmount;
}
function setWalletAddress(address payable _address) public onlyOwner {
_marketingWalletAddress = _address;
}
//Set max wallet amount
function setMaxWalletSize(uint256 maxWalletSize) public onlyOwner {
_maxWalletSize = maxWalletSize;
}
}