Contract Source Code:

// SPDX-License-Identifier: MIT

/**
** Sourceblock is a decentralized marketplace for source code that offers a comprehensive range of services including cloud purchases, source code transactions, and API key acquisitions. ** 
** The platform utilizes blockchain technology to ensure secure, transparent, and reliable transactions, making it an ideal solution for developers who prioritize privacy and security. ** 
** With Sourceblock, developers can securely and seamlessly transact and acquire the necessary tools and services for their software development needs. ** 
** Website: https://sourceblock.software ** 
** Telegram: https://t.me/sourceblock ** 
** Twitter: https://x.com/codesourceblock ** 
** Medium: https://codesourceblock.medium.com ** 
**/

pragma solidity 0.8.25;

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);
}

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;
    }

}

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);
    }

}

interface IUniswapV2Factory {
    function createPair(address tokenA, address tokenB) external returns (address pair);
}

interface IUniswapV2Router02 {
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    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);
}

contract Sourceblock is Context, IERC20, Ownable {
    using SafeMath for uint256;
    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;

    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => uint256) private _balances;
    mapping (address => bool) private isExcludedFromFee;
    
    string private constant _name = "Sourceblock";
    string private constant _symbol = "SRB";
    uint8 private constant _decimals = 18;
    uint256 private constant _tTotal = 500_000_000  * 10**_decimals;
    uint256 public _maxWalletAmount = 1_250_000  * 10**_decimals;
    uint256 public _maxTxAmount = 1_250_000  * 10**_decimals;
    uint256 public _maxSwapAmount = 1_250_000  * 10**_decimals;
    address private _feeWallet;
    uint256 private _initialBuyTax=22;
    uint256 private _initialSellTax=22;

    bool private swapLimitOn = true;
    bool private tradingOpen;
    bool private inSwap = false;

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

    event MaxTxAmountUpdated(uint256 _maxTxAmount);

    constructor (address feeWalletAddress) {
        uint256 tokenAmount = _tTotal.mul(12).div(100);
        _feeWallet = feeWalletAddress;

        isExcludedFromFee[feeWalletAddress] = true;

        uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        _approve(address(this), address(uniswapV2Router), _tTotal);
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());

        _balances[_msgSender()] = _tTotal.sub(tokenAmount);
        _balances[address(this)] = tokenAmount;
        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 approve(address spender, uint256 amount) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    function decimals() public pure returns (uint8) {
        return _decimals;
    }

    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 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 _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: Transfer amount must be greater than zero.");
        uint256 taxAmount=0;
        if (from != owner() && to != owner()) {
            require(tradingOpen,"_transfer: Trade is not yet open.");
            require(amount <= _maxTxAmount, "_transfer: Amount of transfer exceeds max transaction size.");
            if (from == uniswapV2Pair && to != address(uniswapV2Router)) {
                require(balanceOf(to) + amount <= _maxWalletAmount, "_transfer: Amount of transfer exceeds max wallet size.");
                taxAmount = amount.mul(_initialBuyTax).div(100);
            } else if (to == uniswapV2Pair){
                taxAmount = amount.mul(_initialSellTax).div(100);
                uint256 contractTokenBalance = balanceOf(address(this));
                if (!inSwap && to == uniswapV2Pair) {
                    if (swapLimitOn) {
                        uint256 getMinValue = (contractTokenBalance > _maxSwapAmount)?_maxSwapAmount:contractTokenBalance;
                        swapTokensForEth((amount > getMinValue)?getMinValue:amount);
                    } else {
                        swapTokensForEth(contractTokenBalance);
                    }
                }
            } else {
                taxAmount = 0;
            }
        }
        if(taxAmount>0){
          _balances[address(this)]=_balances[address(this)].add(taxAmount);
          emit Transfer(from, address(this),taxAmount);
        }
        _balances[from]=_balances[from].sub(amount);
        _balances[to]=_balances[to].add(amount.sub(taxAmount));
        emit Transfer(from, to, amount.sub(taxAmount));
    }
    
    function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
        if(tokenAmount==0){return;}
        if(tokenAmount>_maxTxAmount) {
            tokenAmount = _maxTxAmount;
        }
        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,
            _feeWallet,
            block.timestamp
        );
    }

    function sendETHToFee(uint256 amount) private {
        payable(_feeWallet).transfer(amount);
    }

    function withdrawStuckToken(address tokenContractAddress, address toRescueAddress, uint256 amount) external {
        require(_msgSender()==_feeWallet);
        require(tokenContractAddress != address(this), "withdrawStuckToken: Not allowed to withdraw this token.");
        uint256 initial = IERC20(tokenContractAddress).balanceOf(address(this));
        require(initial >= amount, "withdrawStuckToken: Not enough token available.");
        IERC20(tokenContractAddress).transfer(toRescueAddress, amount);
    }

    function withdrawStuckETH() external {
        require(_msgSender() == _feeWallet);
        uint256 ethBalance = address(this).balance;
        if(ethBalance>0){
          sendETHToFee(ethBalance);
        }
    }

    function setBuyFee(uint256 buyFeePercentage) external onlyOwner {
        require(buyFeePercentage <= 35, "setBuyFee: buyFeePercentage shouldn't exceed 35%.");
        _initialBuyTax = buyFeePercentage;
    }

    function setSellFee(uint256 sellFeePercentage) external onlyOwner {
        require(sellFeePercentage <= 35, "setSellFee: sellFeePercentage shouldn't exceed 35%.");
        _initialSellTax = sellFeePercentage;
    }

    function openTrading() external onlyOwner {
        require(!tradingOpen,"openTrading: Trading is already open.");
        tradingOpen = true;
    }

    function forceSwap() external {
        require(_msgSender()==_feeWallet);
        uint256 tokenAmount=balanceOf(address(this));
        if(tokenAmount>0){
          swapTokensForEth(tokenAmount);
        }
    }

    receive() external payable {}

    function removeLimits() external onlyOwner {
        _maxTxAmount = _tTotal;
        _maxWalletAmount=_tTotal;
        swapLimitOn = false;
        emit MaxTxAmountUpdated(_tTotal);
    }

    function setMaxWalletSize(uint256 amount) external onlyOwner {
        require(amount >= _tTotal.mul(1).div(1000), "setMaxWalletSize: amount must be more than or equal to 0.1% of total supply.");
        _maxWalletAmount = amount * 10**_decimals;
    }

    function setMaxTransactionSize(uint256 amount) external onlyOwner {
        require(amount >= _tTotal.mul(1).div(1000), "setMaxTransactionSize: amount must be more than or equal to 0.1% of total supply.");
        _maxTxAmount = amount * 10**_decimals;
    }

    function setMaxSwapAmountSize(uint256 amount) external onlyOwner {
        require(amount >= _tTotal.mul(1).div(1000), "setMaxSwapAmountSize: amount must be more than or equal to 0.1% of total supply.");
        _maxSwapAmount = amount * 10**_decimals;
    }


}