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"content": "\r\n\r\n// SPDX-License-Identifier: MIT\r\n/**\r\n$RT (RichTogether) is a ERC20 token thriving on the Ethereum Network. RT was born and conceived to achieve eternal wealth through the values of brotherhood and community 🦍\r\n\r\nTogether we stand, unite, hodl and become rich.\r\n\r\nTg: https://t.me/RichTogether_Portal\r\n\r\nTwitter: twitter.com/richtogether_\r\n**/\r\npragma solidity 0.8.17;\r\n\r\nabstract contract Context {\r\n function _msgSender() internal view virtual returns (address) {\r\n return msg.sender;\r\n }\r\n}\r\n\r\ninterface IERC20 {\r\n function totalSupply() external view returns (uint256);\r\n function balanceOf(address account) external view returns (uint256);\r\n function transfer(address recipient, uint256 amount) external returns (bool);\r\n function allowance(address owner, address spender) external view returns (uint256);\r\n function approve(address spender, uint256 amount) external returns (bool);\r\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\r\n event Transfer(address indexed from, address indexed to, uint256 value);\r\n event Approval(address indexed owner, address indexed spender, uint256 value);\r\n}\r\n\r\nlibrary SafeMath {\r\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\r\n uint256 c = a + b;\r\n require(c >= a, \"SafeMath: addition overflow\");\r\n return c;\r\n }\r\n\r\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\r\n return sub(a, b, \"SafeMath: subtraction overflow\");\r\n }\r\n\r\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\r\n require(b <= a, errorMessage);\r\n uint256 c = a - b;\r\n return c;\r\n }\r\n\r\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\r\n if (a == 0) {\r\n return 0;\r\n }\r\n uint256 c = a * b;\r\n require(c / a == b, \"SafeMath: multiplication overflow\");\r\n return c;\r\n }\r\n\r\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\r\n return div(a, b, \"SafeMath: division by zero\");\r\n }\r\n\r\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\r\n require(b > 0, errorMessage);\r\n uint256 c = a / b;\r\n return c;\r\n }\r\n\r\n}\r\n\r\ncontract Ownable is Context {\r\n address private _owner;\r\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\r\n\r\n constructor () {\r\n address msgSender = _msgSender();\r\n _owner = msgSender;\r\n emit OwnershipTransferred(address(0), msgSender);\r\n }\r\n\r\n function owner() public view returns (address) {\r\n return _owner;\r\n }\r\n\r\n modifier onlyOwner() {\r\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\r\n _;\r\n }\r\n\r\n function renounceOwnership() public virtual onlyOwner {\r\n emit OwnershipTransferred(_owner, address(0));\r\n _owner = address(0);\r\n }\r\n\r\n}\r\n\r\ninterface IUniswapV2Factory {\r\n function createPair(address tokenA, address tokenB) external returns (address pair);\r\n}\r\n\r\ninterface IUniswapV2Router02 {\r\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\r\n uint amountIn,\r\n uint amountOutMin,\r\n address[] calldata path,\r\n address to,\r\n uint deadline\r\n ) external;\r\n function factory() external pure returns (address);\r\n function WETH() external pure returns (address);\r\n function addLiquidityETH(\r\n address token,\r\n uint amountTokenDesired,\r\n uint amountTokenMin,\r\n uint amountETHMin,\r\n address to,\r\n uint deadline\r\n ) external payable returns (uint amountToken, uint amountETH, uint liquidity);\r\n}\r\n\r\ncontract RichTogether_Portal is Context, IERC20, Ownable {\r\n using SafeMath for uint256;\r\n mapping (address => uint256) private _balances;\r\n mapping (address => mapping (address => uint256)) private _allowances;\r\n mapping (address => bool) private _isExcludedFromFee;\r\n mapping (address => bool) private bots;\r\n mapping(address => uint256) private _holderLastTransferTimestamp;\r\n bool public transferDelayEnabled = true;\r\n address payable private _taxWallet;\r\n\r\n uint256 private _initialTax=10;\r\n uint256 private _finalTax=5;\r\n uint256 private _reduceTaxAt=20;\r\n uint256 private _preventSwapBefore=30;\r\n uint256 private _buyCount=0;\r\n\r\n uint8 private constant _decimals = 8;\r\n uint256 private constant _tTotal = 100000000 * 10**_decimals;\r\n string private constant _name = unicode\"Rich Together\";\r\n string private constant _symbol = unicode\"RT\";\r\n uint256 public _maxTxAmount = 2000000 * 10**_decimals;\r\n uint256 public _maxWalletSize = 2000000 * 10**_decimals;\r\n uint256 public _taxSwapThreshold= 800000 * 10**_decimals;\r\n uint256 public _maxTaxSwap= 800000 * 10**_decimals;\r\n\r\n IUniswapV2Router02 private uniswapV2Router;\r\n address private uniswapV2Pair;\r\n bool private tradingOpen;\r\n bool private inSwap = false;\r\n bool private swapEnabled = false;\r\n\r\n event MaxTxAmountUpdated(uint _maxTxAmount);\r\n modifier lockTheSwap {\r\n inSwap = true;\r\n _;\r\n inSwap = false;\r\n }\r\n\r\n constructor () {\r\n _taxWallet = payable(_msgSender());\r\n _balances[_msgSender()] = _tTotal;\r\n _isExcludedFromFee[owner()] = true;\r\n _isExcludedFromFee[address(this)] = true;\r\n _isExcludedFromFee[_taxWallet] = true;\r\n\r\n emit Transfer(address(0), _msgSender(), _tTotal);\r\n }\r\n\r\n function name() public pure returns (string memory) {\r\n return _name;\r\n }\r\n\r\n function symbol() public pure returns (string memory) {\r\n return _symbol;\r\n }\r\n\r\n function decimals() public pure returns (uint8) {\r\n return _decimals;\r\n }\r\n\r\n function totalSupply() public pure override returns (uint256) {\r\n return _tTotal;\r\n }\r\n\r\n function balanceOf(address account) public view override returns (uint256) {\r\n return _balances[account];\r\n }\r\n\r\n function transfer(address recipient, uint256 amount) public override returns (bool) {\r\n _transfer(_msgSender(), recipient, amount);\r\n return true;\r\n }\r\n\r\n function allowance(address owner, address spender) public view override returns (uint256) {\r\n return _allowances[owner][spender];\r\n }\r\n\r\n function approve(address spender, uint256 amount) public override returns (bool) {\r\n _approve(_msgSender(), spender, amount);\r\n return true;\r\n }\r\n\r\n function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {\r\n _transfer(sender, recipient, amount);\r\n _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, \"ERC20: transfer amount exceeds allowance\"));\r\n return true;\r\n }\r\n\r\n function _approve(address owner, address spender, uint256 amount) private {\r\n require(owner != address(0), \"ERC20: approve from the zero address\");\r\n require(spender != address(0), \"ERC20: approve to the zero address\");\r\n _allowances[owner][spender] = amount;\r\n emit Approval(owner, spender, amount);\r\n }\r\n\r\n function _transfer(address from, address to, uint256 amount) private {\r\n require(from != address(0), \"ERC20: transfer from the zero address\");\r\n require(to != address(0), \"ERC20: transfer to the zero address\");\r\n require(amount > 0, \"Transfer amount must be greater than zero\");\r\n uint256 taxAmount=0;\r\n if (from != owner() && to != owner()) {\r\n require(!bots[from] && !bots[to]);\r\n if(!inSwap){\r\n taxAmount = amount.mul((_buyCount>_reduceTaxAt)?_finalTax:_initialTax).div(100);\r\n }\r\n\r\n if (transferDelayEnabled) {\r\n if (to != address(uniswapV2Router) && to != address(uniswapV2Pair)) {\r\n require(\r\n _holderLastTransferTimestamp[tx.origin] <\r\n block.number,\r\n \"_transfer:: Transfer Delay enabled. Only one purchase per block allowed.\"\r\n );\r\n _holderLastTransferTimestamp[tx.origin] = block.number;\r\n }\r\n }\r\n\r\n if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] ) {\r\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\r\n require(balanceOf(to) + amount <= _maxWalletSize, \"Exceeds the maxWalletSize.\");\r\n _buyCount++;\r\n }\r\n\r\n uint256 contractTokenBalance = balanceOf(address(this));\r\n if (!inSwap && from != uniswapV2Pair && swapEnabled && contractTokenBalance>_taxSwapThreshold && _buyCount>_preventSwapBefore) {\r\n swapTokensForEth(min(amount,min(contractTokenBalance,_maxTaxSwap)));\r\n uint256 contractETHBalance = address(this).balance;\r\n if(contractETHBalance > 0) {\r\n sendETHToFee(address(this).balance);\r\n }\r\n }\r\n }\r\n\r\n _balances[from]=_balances[from].sub(amount);\r\n _balances[to]=_balances[to].add(amount.sub(taxAmount));\r\n emit Transfer(from, to, amount.sub(taxAmount));\r\n if(taxAmount>0){\r\n _balances[address(this)]=_balances[address(this)].add(taxAmount);\r\n emit Transfer(from, address(this),taxAmount);\r\n }\r\n }\r\n\r\n\r\n function min(uint256 a, uint256 b) private pure returns (uint256){\r\n return (a>b)?b:a;\r\n }\r\n\r\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\r\n address[] memory path = new address[](2);\r\n path[0] = address(this);\r\n path[1] = uniswapV2Router.WETH();\r\n _approve(address(this), address(uniswapV2Router), tokenAmount);\r\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\r\n tokenAmount,\r\n 0,\r\n path,\r\n address(this),\r\n block.timestamp\r\n );\r\n }\r\n\r\n function removeLimits() external onlyOwner{\r\n _maxTxAmount = _tTotal;\r\n _maxWalletSize=_tTotal;\r\n transferDelayEnabled=false;\r\n emit MaxTxAmountUpdated(_tTotal);\r\n }\r\n\r\n function sendETHToFee(uint256 amount) private {\r\n _taxWallet.transfer(amount);\r\n }\r\n\r\n function addBots(address[] memory bots_) public onlyOwner {\r\n for (uint i = 0; i < bots_.length; i++) {\r\n bots[bots_[i]] = true;\r\n }\r\n }\r\n\r\n function delBots(address[] memory notbot) public onlyOwner {\r\n for (uint i = 0; i < notbot.length; i++) {\r\n bots[notbot[i]] = false;\r\n }\r\n }\r\n\r\n function isBot(address a) public view returns (bool){\r\n return bots[a];\r\n }\r\n\r\n function openTrading() external onlyOwner() {\r\n require(!tradingOpen,\"trading is already open\");\r\n uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\r\n _approve(address(this), address(uniswapV2Router), _tTotal);\r\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());\r\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);\r\n swapEnabled = true;\r\n tradingOpen = true;\r\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\r\n }\r\n\r\n \r\n\r\n receive() external payable {}\r\n\r\n function manualSwap() external {\r\n uint256 tokenBalance=balanceOf(address(this));\r\n if(tokenBalance>0){\r\n swapTokensForEth(tokenBalance);\r\n }\r\n uint256 ethBalance=address(this).balance;\r\n if(ethBalance>0){\r\n sendETHToFee(ethBalance);\r\n }\r\n }\r\n}"
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