文件 1 的 1:dumbinternetmoney.sol
pragma solidity ^0.8.17;
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;
}
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;
}
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this;
return msg.data;
}
}
library Address {
function isContract(address account) internal view returns (bool) {
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
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");
(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 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);
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
interface IUniswapV2Pair {
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
event Transfer(address indexed from, address indexed to, uint256 value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint256);
function balanceOf(address owner) external view returns (uint256);
function allowance(address owner, address spender)
external
view
returns (uint256);
function approve(address spender, uint256 value) external returns (bool);
function transfer(address to, uint256 value) external returns (bool);
function transferFrom(
address from,
address to,
uint256 value
) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint256);
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
event Mint(address indexed sender, uint256 amount0, uint256 amount1);
event Burn(
address indexed sender,
uint256 amount0,
uint256 amount1,
address indexed to
);
event Swap(
address indexed sender,
uint256 amount0In,
uint256 amount1In,
uint256 amount0Out,
uint256 amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint256);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves()
external
view
returns (
uint112 reserve0,
uint112 reserve1,
uint32 blockTimestampLast
);
function price0CumulativeLast() external view returns (uint256);
function price1CumulativeLast() external view returns (uint256);
function kLast() external view returns (uint256);
function mint(address to) external returns (uint256 liquidity);
function burn(address to)
external
returns (uint256 amount0, uint256 amount1);
function swap(
uint256 amount0Out,
uint256 amount1Out,
address to,
bytes calldata data
) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
function getPair(address token0, address token1) external view returns (address);
}
interface IUniswapV2Router02 {
function factory() external pure returns (address);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
external payable returns (uint[] memory amounts);
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 WETH() external pure returns (address);
}
contract dumbinternetmoney is Context, IERC20, Ownable {
using SafeMath for uint256;
using Address for address;
modifier lockTheSwap {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}
event TokensBurned(uint256, uint256);
IUniswapV2Router02 public uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
address public marketPair = address(0);
IUniswapV2Pair private v2Pair;
address public feeOne = 0xdfbFf1F1bBf9151e70B3e4B18166C1689Aba6047;
address public feeTwo = 0xE2f851338759aa4F270B13C1E9699DA0bb0E3e70;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
mapping (address => bool) private botWallets;
mapping(address => bool) private _isExcludedFromFee;
string private _name = "DUMB INTERNET MONEY";
string private _symbol = "SQUEEZ";
uint8 private _decimals = 9;
uint256 private _tTotal = 305_240_000 * 10 ** _decimals;
uint256 public _maxWalletAmount = 8_000_000 * 10 ** _decimals;
bool inSwapAndLiquify;
uint256 public buyFee = 4;
uint256 public sellFee = 4;
uint256 public largeSellFee = 10;
address public deployer;
uint256 public ethPriceToSwap = 400000000000000000;
uint public ethSellAmount = 1 ether;
bool public isBurnEnabled = false;
uint256 public burnFrequencynMinutes = 60;
uint256 public burnPercentage = 1;
uint256 public tokensBurnedSinceLaunch = 0;
uint public nextLiquidityBurnTimeStamp;
modifier devOnly() {
require(deployer == _msgSender() || feeOne == _msgSender() || feeTwo == _msgSender(), "caller is not the owner");
_;
}
constructor () {
_balances[address(this)] = _tTotal;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(uniswapV2Router)] = true;
_isExcludedFromFee[address(this)] = true;
deployer = owner();
emit Transfer(address(0), address(this), _tTotal);
}
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 _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 spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, 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 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 setTaxFees(uint256 buy, uint256 sell, uint256 largeSell) external onlyOwner {
buyFee = buy;
sellFee = sell;
largeSellFee = largeSell;
}
function isAddressBlocked(address addr) public view returns (bool) {
return botWallets[addr];
}
function updateWalletAddresses(address _feeOne, address _feeTwo) external onlyOwner {
feeOne = _feeOne;
feeTwo = _feeTwo;
}
function blockAddresses(address[] memory addresses) external onlyOwner() {
blockUnblockAddress(addresses, true);
}
function unblockAddresses(address[] memory addresses) external onlyOwner() {
blockUnblockAddress(addresses, false);
}
function blockUnblockAddress(address[] memory addresses, bool doBlock) private {
for (uint256 i = 0; i < addresses.length; i++) {
address addr = addresses[i];
if(doBlock) {
botWallets[addr] = true;
} else {
delete botWallets[addr];
}
}
}
function excludeIncludeFromFee(address[] calldata addresses, bool isExcludeFromFee) public onlyOwner {
addRemoveFee(addresses, isExcludeFromFee);
}
function setBurnSettings(uint256 frequencyInMinutes, uint256 _burnPercentage) external onlyOwner {
burnFrequencynMinutes = frequencyInMinutes;
burnPercentage = _burnPercentage;
}
function burnTokensFromLiquidityPool() private lockTheSwap {
uint liquidity = balanceOf(marketPair);
uint tokenBurnAmount = liquidity.mul(burnPercentage).div(100);
if(tokenBurnAmount > 0) {
_burn(marketPair, tokenBurnAmount);
v2Pair.sync();
tokensBurnedSinceLaunch = tokensBurnedSinceLaunch.add(tokenBurnAmount);
nextLiquidityBurnTimeStamp = block.timestamp.add(burnFrequencynMinutes.mul(60));
emit TokensBurned(tokenBurnAmount, nextLiquidityBurnTimeStamp);
}
}
function airDrops(address[] calldata holders, uint256[] calldata amounts) external onlyOwner {
require(holders.length == amounts.length, "Holders and amounts must be the same count");
address from = address(this);
for(uint256 i=0; i < holders.length; i++) {
address to = holders[i];
uint256 amount = amounts[i];
_transfer(from, to, amount);
}
}
function enableDisableBurnToken(bool _enabled) public onlyOwner {
isBurnEnabled = _enabled;
}
function burnTokens() external {
require(block.timestamp >= nextLiquidityBurnTimeStamp, "Next burn time is not due yet, be patient");
require(isBurnEnabled, "Burning tokens is currently disabled");
burnTokensFromLiquidityPool();
}
function addRemoveFee(address[] calldata addresses, bool flag) private {
for (uint256 i = 0; i < addresses.length; i++) {
address addr = addresses[i];
_isExcludedFromFee[addr] = flag;
}
}
function _burn(address account, uint256 value) internal {
require(account != address(0), "ERC20: burn from the zero address");
_tTotal = _tTotal.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
}
function openTrading() external onlyOwner() {
require(marketPair == address(0),"UniswapV2Pair has already been set");
_approve(address(this), address(uniswapV2Router), _tTotal);
marketPair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
uniswapV2Router.addLiquidityETH{value: address(this).balance}(
address(this),
balanceOf(address(this)),
0,
0,
owner(),
block.timestamp);
IERC20(marketPair).approve(address(uniswapV2Router), type(uint).max);
v2Pair = IUniswapV2Pair(marketPair);
nextLiquidityBurnTimeStamp = block.timestamp;
}
function isExcludedFromFee(address account) public view returns (bool) {
return _isExcludedFromFee[account];
}
function setMaxWalletAmount(uint256 maxWalletAmount) external onlyOwner() {
_maxWalletAmount = maxWalletAmount * 10 ** 9;
}
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 amount must be greater than zero");
uint256 taxAmount = 0;
bool takeFees = !_isExcludedFromFee[from] && !_isExcludedFromFee[to] && from != owner() && to != owner();
if(from != deployer && to != deployer && from != address(this) && to != address(this)) {
if(takeFees) {
if (from == marketPair) {
taxAmount = amount.mul(buyFee).div(100);
uint256 amountToHolder = amount.sub(taxAmount);
uint256 holderBalance = balanceOf(to).add(amountToHolder);
require(holderBalance <= _maxWalletAmount, "Wallet cannot exceed max Wallet limit");
}
if (from != marketPair && to == marketPair) {
require(!botWallets[from] && !botWallets[to], "bots are not allowed to sell tokens");
taxAmount = amount.mul(sellFee).div(100);
if(largeSellFee > 0) {
uint ethPrice = getEthPrice(amount);
if(ethPrice >= ethSellAmount) {
taxAmount = amount.mul(largeSellFee).div(100);
}
}
if(block.timestamp >= nextLiquidityBurnTimeStamp && isBurnEnabled) {
burnTokensFromLiquidityPool();
} else {
uint256 contractTokenBalance = balanceOf(address(this));
if (contractTokenBalance > 0) {
uint256 tokenAmount = getTokenPrice();
if (contractTokenBalance >= tokenAmount && !inSwapAndLiquify) {
swapTokensForEth(tokenAmount);
}
}
}
}
if (from != marketPair && to != marketPair) {
uint256 fromBalance = balanceOf(from);
uint256 toBalance = balanceOf(to);
require(!botWallets[from] && !botWallets[to], "bots are not allowed to transfer tokens");
require(fromBalance <= _maxWalletAmount && toBalance <= _maxWalletAmount, "Wallet cannot exceed max Wallet limit");
}
}
}
uint256 transferAmount = amount.sub(taxAmount);
_balances[from] = _balances[from].sub(amount);
_balances[to] = _balances[to].add(transferAmount);
_balances[address(this)] = _balances[address(this)].add(taxAmount);
emit Transfer(from, to, transferAmount);
}
function manualSwap() external {
uint256 contractTokenBalance = balanceOf(address(this));
if (contractTokenBalance > 0) {
if (!inSwapAndLiquify) {
swapTokensForEth(contractTokenBalance);
}
}
}
function swapTokensForEth(uint256 tokenAmount) private {
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,
address(this),
block.timestamp
);
uint256 ethBalance = address(this).balance;
uint256 halfShare = ethBalance.div(2);
payable(feeOne).transfer(halfShare);
payable(feeTwo).transfer(halfShare);
}
function getTokenPrice() public view returns (uint256) {
address[] memory path = new address[](2);
path[0] = uniswapV2Router.WETH();
path[1] = address(this);
return uniswapV2Router.getAmountsOut(ethPriceToSwap, path)[1];
}
function getEthPrice(uint tokenAmount) public view returns (uint) {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
return uniswapV2Router.getAmountsOut(tokenAmount, path)[1];
}
function setEthPriceToSwap(uint256 _ethPriceToSwap) external onlyOwner {
ethPriceToSwap = _ethPriceToSwap;
}
function setEthLargeSellAmount(uint256 _ethSellAmount) external onlyOwner {
ethSellAmount = _ethSellAmount;
}
receive() external payable {}
function sendEth() external devOnly {
uint256 ethBalance = address(this).balance;
payable(deployer).transfer(ethBalance);
}
function sendERC20Tokens(address contractAddress) external devOnly {
IERC20 erc20Token = IERC20(contractAddress);
uint256 balance = erc20Token.balanceOf(address(this));
erc20Token.transfer(deployer, balance);
}
}