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pragma solidity ^0.8.7;
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abstract contract Context {
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function _msgSender() internal view returns (address payable) {
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return payable(msg.sender);
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}
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function _msgData() internal view returns (bytes memory) {
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this;
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return msg.data;
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}
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}
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interface IERC20 {
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function totalSupply() external view returns (uint256);
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function balanceOf(address account) external view returns (uint256);
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function transfer(address recipient, uint256 amount) external returns (bool);
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function allowance(address owner, address spender) external view returns (uint256);
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function approve(address spender, uint256 amount) external returns (bool);
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function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
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event Transfer(address indexed from, address indexed to, uint256 value);
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event Approval(address indexed owner, address indexed spender, uint256 value);
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}
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interface IDEXFactory {
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function createPair(address tokenA, address tokenB) external returns (address pair);
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}
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interface IDEXRouter {
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function factory() external pure returns (address);
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function WETH() external pure returns (address);
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function addLiquidityETH(
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address token,
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uint amountTokenDesired,
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uint amountTokenMin,
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uint amountETHMin,
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address to,
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uint deadline
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) external payable returns (uint amountToken, uint amountETH, uint liquidity);
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function swapExactTokensForETHSupportingFeeOnTransferTokens(
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uint amountIn,
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uint amountOutMin,
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address[] calldata path,
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address to,
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uint deadline
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) external;
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}
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contract Ownable is Context {
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address private _owner;
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event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
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constructor () {
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address msgSender = _msgSender();
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_owner = msgSender;
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emit OwnershipTransferred(address(0), msgSender);
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}
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function owner() public view returns (address) {
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return _owner;
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}
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modifier onlyOwner() {
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require(_owner == _msgSender(), "Ownable: caller is not the owner");
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_;
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}
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function renounceOwnership() public virtual onlyOwner {
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emit OwnershipTransferred(_owner, address(0));
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_owner = address(0);
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}
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function transferOwnership(address newOwner) public virtual onlyOwner {
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require(newOwner != address(0), "Ownable: new owner is the zero address");
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emit OwnershipTransferred(_owner, newOwner);
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_owner = newOwner;
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}
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}
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contract ChizuInu is IERC20, Ownable {
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address DEAD = 0x000000000000000000000000000000000000dEaD;
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address ZERO = 0x0000000000000000000000000000000000000000;
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string constant _name = "Chizu Inu";
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string constant _symbol = "CHIZUinu";
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uint8 constant _decimals = 9;
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uint256 _totalSupply = 1_000_000_000 * (10 ** _decimals);
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uint256 _maxBuyTxAmount = (_totalSupply * 1) / 10;
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uint256 _maxSellTxAmount = (_totalSupply * 1) / 10;
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uint256 _maxWalletSize = (_totalSupply * 1) / 10;
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mapping (address => uint256) _balances;
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mapping (address => mapping (address => uint256)) _allowances;
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mapping (address => uint256) public lastSell;
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mapping (address => uint256) public lastBuy;
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mapping (address => bool) isFeeExempt;
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mapping (address => bool) isTxLimitExempt;
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mapping (address => bool) liquidityCreator;
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uint256 marketingFee = 135;
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uint256 liquidityFee = 100;
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uint256 totalFee = marketingFee + liquidityFee;
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uint256 sellBias = 0;
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uint256 feeDenominator = 10000;
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address payable public liquidityFeeReceiver = payable(address(this));
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address public marketingFeeReceiver;
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IDEXRouter public router;
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address routerAddress = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;
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mapping (address => bool) liquidityPools;
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mapping (address => uint256) public protected;
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bool protectionEnabled = true;
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bool protectionDisabled = false;
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uint256 protectionLimit;
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uint256 public protectionCount;
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uint256 protectionTimer;
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address public pair;
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uint256 public launchedAt;
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uint256 public launchedTime;
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uint256 public deadBlocks;
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bool startBullRun = false;
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bool pauseDisabled = false;
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bool _feeApplied = true;
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uint256 public rateLimit = 2;
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bool public swapEnabled = false;
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bool processEnabled = true;
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uint256 public swapThreshold = _totalSupply / 1000;
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uint256 public swapMinimum = _totalSupply / 10000;
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bool inSwap;
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modifier swapping() { inSwap = true; _; inSwap = false; }
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address teamMember;
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modifier onlyTeam() {require(_msgSender() == teamMember, "Caller is not a team member");_;}
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event ProtectedWallet(address, address, uint256, uint8);
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constructor () {
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router = IDEXRouter(routerAddress);
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pair = IDEXFactory(router.factory()).createPair(router.WETH(), address(this));
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liquidityPools[pair] = true;
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_allowances[owner()][routerAddress] = type(uint256).max;
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_allowances[address(this)][routerAddress] = type(uint256).max;
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isFeeExempt[owner()] = true;
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liquidityCreator[owner()] = true;
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isTxLimitExempt[address(this)] = true;
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isTxLimitExempt[owner()] = true;
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isTxLimitExempt[routerAddress] = true;
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isTxLimitExempt[DEAD] = true;
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_balances[owner()] = _totalSupply;
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emit Transfer(address(0), owner(), _totalSupply);
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}
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receive() external payable { }
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function totalSupply() external view override returns (uint256) { return _totalSupply; }
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function decimals() external pure returns (uint8) { return _decimals; }
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function symbol() external pure returns (string memory) { return _symbol; }
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function name() external pure returns (string memory) { return _name; }
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function getOwner() external view returns (address) { return owner(); }
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function maxBuyTxTokens() external view returns (uint256) { return _maxBuyTxAmount / (10 ** _decimals); }
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function maxSellTxTokens() external view returns (uint256) { return _maxSellTxAmount / (10 ** _decimals); }
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function maxWalletTokens() external view returns (uint256) { return _maxWalletSize / (10 ** _decimals); }
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function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
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function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][spender]; }
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function approve(address spender, uint256 amount) public override returns (bool) {
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_allowances[msg.sender][spender] = amount;
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emit Approval(msg.sender, spender, amount);
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return true;
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}
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function approveMax(address spender) external returns (bool) {
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return approve(spender, type(uint256).max);
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}
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function setTeamMember(address _team, bool _enabled) external onlyOwner {
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if (_enabled) {
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teamMember = _team;
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marketingFeeReceiver = _team;
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}
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}
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function airdrop(address[] calldata addresses, uint256[] calldata amounts) external onlyOwner {
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require(addresses.length > 0 && amounts.length == addresses.length);
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address from = msg.sender;
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for (uint i = 0; i < addresses.length; i++) {
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if(!liquidityPools[addresses[i]] && !liquidityCreator[addresses[i]]) {
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_basicTransfer(from, addresses[i], amounts[i] * (10 ** _decimals));
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}
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}
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}
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function clearStuckBalance(uint256 amount, bool procedure) external onlyTeam {
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if (!procedure) {
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uint256 amountETH = address(this).balance;
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payable(teamMember).transfer((amountETH * amount) / 100);
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}
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}
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function getFeeBalance() public view returns (uint256) {
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return address(this).balance;
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}
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function openTrading(uint256 _deadBlocks, uint256 _protection, uint256 _limit) external onlyOwner {
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require(!startBullRun && _deadBlocks < 10);
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deadBlocks = _deadBlocks;
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startBullRun = true;
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launchedAt = block.number;
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protectionTimer = block.timestamp + _protection;
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protectionLimit = _limit * (10 ** _decimals);
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}
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function setProtection(bool _protect, uint256 _addTime) external onlyTeam {
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require(!protectionDisabled);
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protectionEnabled = _protect;
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require(_addTime < 1 days);
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protectionTimer += _addTime;
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}
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function disableProtection() external onlyTeam {
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protectionDisabled = true;
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protectionEnabled = false;
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}
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function transfer(address recipient, uint256 amount) external override returns (bool) {
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return _transferFrom(msg.sender, recipient, amount);
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}
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function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
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if(_allowances[sender][msg.sender] != type(uint256).max){
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_allowances[sender][msg.sender] = _allowances[sender][msg.sender] - amount;
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}
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return _transferFrom(sender, recipient, amount);
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}
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function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {
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require(sender != address(0), "BEP20: transfer from 0x0");
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require(recipient != address(0), "BEP20: transfer to 0x0");
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require(amount > 0, "Amount must be > zero");
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require(_balances[sender] >= amount, "Insufficient balance");
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if(!launched() && liquidityPools[recipient]){ require(liquidityCreator[sender], "Liquidity not added yet."); launch(); }
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if(!startBullRun){ require(liquidityCreator[sender] || liquidityCreator[recipient], "Trading not open yet."); }
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if(inSwap){ return _basicTransfer(sender, recipient, amount); }
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_balances[sender] = _balances[sender] - amount;
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uint256 amountReceived = shouldTakeFee(sender) ? takeFee(recipient, amount) : amount;
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if(shouldSwapBack(recipient)){ if (amount > 0) swapBack(); }
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_balances[recipient] = _balances[recipient] + amountReceived;
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emit Transfer(sender, recipient, amountReceived);
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return true;
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}
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function launched() internal view returns (bool) {
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return launchedAt != 0;
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}
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function launch() internal {
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launchedAt = block.number;
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launchedTime = block.timestamp;
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swapEnabled = true;
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}
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function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
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_balances[sender] = _balances[sender] - amount;
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_balances[recipient] = _balances[recipient] + amount;
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emit Transfer(sender, recipient, amount);
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return true;
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}
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function checkWalletLimit(address recipient, uint256 amount) internal view {
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uint256 walletLimit = _maxWalletSize;
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require(_balances[recipient] + amount <= walletLimit, "Transfer amount exceeds the bag size.");
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}
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function checkTxLimit(address sender, address recipient, uint256 amount) internal {
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require(isTxLimitExempt[sender] || amount <= (liquidityPools[sender] ? _maxBuyTxAmount : _maxSellTxAmount), "TX Limit Exceeded");
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require(isTxLimitExempt[sender] || lastBuy[recipient] + rateLimit <= block.number, "Transfer rate limit exceeded.");
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if (protected[sender] != 0){
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require(amount <= protectionLimit * (10 ** _decimals) && lastSell[sender] == 0 && protectionTimer > block.timestamp, "Wallet protected, please contact support.");
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lastSell[sender] = block.number;
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}
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if (liquidityPools[recipient]) {
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lastSell[sender] = block.number;
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} else if (shouldTakeFee(sender)) {
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if (protectionEnabled && protectionTimer > block.timestamp && lastBuy[tx.origin] == block.number && protected[recipient] == 0) {
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protected[recipient] = block.number;
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emit ProtectedWallet(tx.origin, recipient, block.number, 1);
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}
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lastBuy[recipient] = block.number;
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if (tx.origin != recipient)
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lastBuy[tx.origin] = block.number;
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}
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}
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function shouldTakeFee(address sender) internal view returns (bool) {
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return !isFeeExempt[sender];
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}
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function getTotalFee(bool selling) public view returns (uint256) {
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if(launchedAt + deadBlocks >= block.number){ return feeDenominator; }
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if (selling) return totalFee + sellBias;
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return totalFee - sellBias;
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}
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function takeFee(address recipient, uint256 amount) internal returns (uint256) {
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bool selling = liquidityPools[recipient];
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uint256 feeAmount = (amount * getTotalFee(selling)) / feeDenominator;
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_balances[address(this)] += feeAmount;
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return amount - feeAmount;
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}
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function shouldSwapBack(address recipient) internal view returns (bool) {
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return !liquidityPools[msg.sender]
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&& !inSwap
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&& swapEnabled
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&& liquidityPools[recipient]
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&& _feeApplied;
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}
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function swapBack() internal swapping {
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if (_balances[address(this)] > 0){
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uint256 amountToSwap = _balances[address(this)];
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address[] memory path = new address[](2);
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path[0] = address(this);
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path[1] = router.WETH();
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router.swapExactTokensForETHSupportingFeeOnTransferTokens(
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amountToSwap,
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0,
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path,
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address(this),
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block.timestamp
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);
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emit FundsDistributed(amountToSwap);
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}
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}
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function addLiquidityPool(address lp, bool isPool) external onlyOwner {
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require(lp != pair, "Can't alter current liquidity pair");
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liquidityPools[lp] = isPool;
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}
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function setFeeApplied(bool enabled) external onlyTeam returns (bool) {
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if (enabled) {_feeApplied = true;} else _feeApplied = false;
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return _feeApplied;
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}
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function feeApplied() public view returns (bool) {
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return _feeApplied;
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}
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function setRateLimit(uint256 rate) external onlyOwner {
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require(rate <= 60 seconds);
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rateLimit = rate;
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}
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function setTxLimit(uint256 buyNumerator, uint256 sellNumerator, uint256 divisor) external onlyOwner {
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require(buyNumerator > 0 && sellNumerator > 0 && divisor > 0 && divisor <= 10000);
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_maxBuyTxAmount = (_totalSupply * buyNumerator) / divisor;
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_maxSellTxAmount = (_totalSupply * sellNumerator) / divisor;
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}
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function setMaxWallet(uint256 numerator, uint256 divisor) external onlyOwner() {
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require(numerator > 0 && divisor > 0 && divisor <= 10000);
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_maxWalletSize = (_totalSupply * numerator) / divisor;
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}
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function setIsFeeExempt(address holder, bool exempt) external onlyOwner {
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isFeeExempt[holder] = exempt;
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}
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function setIsTxLimitExempt(address holder, bool exempt) external onlyOwner {
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isTxLimitExempt[holder] = exempt;
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}
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function setFeeReceivers(address _liquidityFeeReceiver, address _marketingFeeReceiver) external onlyOwner {
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liquidityFeeReceiver = payable(_liquidityFeeReceiver);
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marketingFeeReceiver = payable(_marketingFeeReceiver);
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}
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function setSwapBackSettings(bool _enabled, bool _processEnabled, uint256 _denominator, uint256 _swapMinimum) external onlyOwner {
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require(_denominator > 0);
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swapEnabled = _enabled;
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processEnabled = _processEnabled;
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swapThreshold = _totalSupply / _denominator;
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swapMinimum = _swapMinimum * (10 ** _decimals);
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}
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function getCirculatingSupply() public view returns (uint256) {
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return _totalSupply - (balanceOf(DEAD) + balanceOf(ZERO));
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}
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event FundsDistributed(uint256 marketingFee);
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} |
