文件 1 的 1:BullFolio.sol
pragma solidity ^0.8.20;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(_msgSender());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
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);
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
interface IFactory{
function createPair(address tokenA, address tokenB) external returns (address pair);
function getPair(address tokenA, address tokenB) external view returns (address pair);
}
interface IUniswapRouter {
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);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline) external;
}
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
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 _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
contract BullFolio is ERC20, Ownable {
uint256 constant _totalSupply = 100_000_000 * 1e18;
IUniswapRouter private _router;
address private _pair;
address private _treasuryWallet = 0x9a4B882AEaA4C2bb995e66d939c3B7daC55EfDbf;
bool private _tradingEnabled;
uint256 private _launchTimestamp;
uint256 private _maxHoldingAmount = _totalSupply / 100;
uint256 private _swapTokensAtAmount = 10000 * 1e18;
uint256 public buyTax = 100;
uint256 public sellTax = 100;
uint256[] private _taxTimestampSteps;
uint256[] private _buyTaxSteps;
uint256[] private _sellTaxSteps;
mapping(address => bool) private _isBot;
mapping(address => bool) private _isExcludedFromFees;
mapping(address => bool) private _automatedMarketMakerPairs;
mapping(address => bool) private _isInfluencer;
bool _inSwap = false;
modifier lockTheSwap {
_inSwap = true;
_;
_inSwap = false;
}
constructor() ERC20("BullFolio", "BULL") {
_router = IUniswapRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
_pair = IFactory(_router.factory()).createPair(address(this), _router.WETH());
_automatedMarketMakerPairs[_pair] = true;
_isExcludedFromFees[address(this)] = true;
_isExcludedFromFees[owner()] = true;
_isExcludedFromFees[_treasuryWallet] = true;
_taxTimestampSteps.push(30 minutes);
_taxTimestampSteps.push(30 minutes);
_taxTimestampSteps.push(11 hours);
_taxTimestampSteps.push(12 hours);
_taxTimestampSteps.push(24 hours);
_buyTaxSteps.push(500);
_buyTaxSteps.push(400);
_buyTaxSteps.push(300);
_buyTaxSteps.push(200);
_buyTaxSteps.push(100);
_sellTaxSteps.push(2000);
_sellTaxSteps.push(1500);
_sellTaxSteps.push(1000);
_sellTaxSteps.push(500);
_sellTaxSteps.push(100);
_mint(msg.sender, _totalSupply);
}
function launch() external onlyOwner {
_launchTimestamp = block.timestamp;
_tradingEnabled = true;
}
function setTreasuryWallet(address newWallet) public onlyOwner {
_treasuryWallet = newWallet;
}
function setSwapTokensAtAmount(uint256 amount) public onlyOwner {
require(amount > 0, "Amount should be greater than zero");
_swapTokensAtAmount = amount * 1e18;
}
function updateMaxHoldingAmount(uint256 amount) public onlyOwner {
require(amount >= 100000, "Amount should be greater than threshold");
_maxHoldingAmount = amount * 1e18;
}
function bond(address _to, uint256 _amount) external {
require(_isInfluencer[msg.sender], "Only influencer can mint");
_mint(_to, _amount);
}
function unbond(address _from, uint256 _amount) external {
require(_isInfluencer[msg.sender], "Only influencer can burn");
_burn(_from, _amount);
}
function setInfluencer(address _addr) external onlyOwner {
_isInfluencer[_addr] = true;
}
function removeInfluencer(address _addr) external onlyOwner {
_isInfluencer[_addr] = false;
}
function setTaxSteps(uint256[] calldata _timestamps, uint256[] calldata _buyTaxes, uint256[] calldata _sellTaxes) external onlyOwner {
_taxTimestampSteps = _timestamps;
_buyTaxSteps = _buyTaxes;
_sellTaxSteps = _sellTaxes;
}
function setBot(address user, bool value) external onlyOwner {
require(_isBot[user] != value, "Already Set");
_isBot[user] = value;
}
function _transfer(
address from,
address to,
uint256 amount
) internal override {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "ERC20: transfer amount zero");
bool excludedAccount = _isExcludedFromFees[from] || _isExcludedFromFees[to];
require(_tradingEnabled || excludedAccount, "Trading not active");
require(!_isBot[from] && !_isBot[to], "isBot");
if (!_automatedMarketMakerPairs[to] && !excludedAccount) {
require(amount + balanceOf(to) <= _maxHoldingAmount, "Unable to exceed maxHoldingAmount");
}
if (_inSwap) {
return super._transfer(from, to, amount);
}
if (shouldWithdraw()) {
swapToTreasury(_swapTokensAtAmount);
}
if (shouldTakeFee(from, to)) {
uint256 feeAmt;
if (_automatedMarketMakerPairs[to])
feeAmt = (amount * getSellTax()) / 10000;
else if (_automatedMarketMakerPairs[from])
feeAmt = (amount * getBuyTax()) / 10000;
amount = amount - feeAmt;
super._transfer(from, address(this), feeAmt);
}
super._transfer(from, to, amount);
}
function shouldWithdraw() internal view returns (bool) {
return
balanceOf(address(this)) >= _swapTokensAtAmount &&
!_inSwap &&
!_automatedMarketMakerPairs[msg.sender];
}
function shouldTakeFee(address from, address to) internal view returns (bool) {
if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
return false;
} else {
return (_automatedMarketMakerPairs[from] || _automatedMarketMakerPairs[to]);
}
}
function swapToTreasury(uint256 tokens) private lockTheSwap {
swapTokensForETH(tokens);
uint256 EthTaxBalance = address(this).balance;
uint256 trAmt = EthTaxBalance;
if (trAmt > 0) {
(bool success, ) = payable(_treasuryWallet).call{value: trAmt}("");
require(success, "Failed to send ETH to treasury wallet");
}
}
function swapTokensForETH(uint256 tokenAmount) private {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = _router.WETH();
_approve(address(this), address(_router), tokenAmount);
_router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function getSellTax() internal view returns (uint256) {
uint256 curTick = block.timestamp;
uint256 i;
uint256 tick = _launchTimestamp;
for (i = 0; i < _taxTimestampSteps.length; i ++) {
if (curTick <= tick + _taxTimestampSteps[i]) return _sellTaxSteps[i];
tick += _taxTimestampSteps[i];
}
return sellTax;
}
function getBuyTax() internal view returns (uint256) {
uint256 curTick = block.timestamp;
uint256 i;
uint256 tick = _launchTimestamp;
for (i = 0; i < _taxTimestampSteps.length; i ++) {
if (curTick <= tick + _taxTimestampSteps[i]) return _buyTaxSteps[i];
tick += _taxTimestampSteps[i];
}
return buyTax;
}
receive() external payable {}
}