Contract Source Code:
File 1 of 1 : TeleBot
/**
Your Passport to Cross-Chain Crypto Transactions
Website: https://www.telebot.vip
Telegram: https://t.me/tbotc_erc
Twitter: https://twitter.com/tbotc_erc
Bot: https://t.me/crosschainbridgebot
*/
// SPDX-License-Identifier: MIT
pragma solidity 0.7.0;
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;
}
}
interface IDexRouter {
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);
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
interface IERC20 {
function totalSupply() 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);
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);
}
interface IDexFactory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
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);
}
}
contract TeleBot is Context, Ownable, IERC20 {
using SafeMath for uint256;
string private constant _name = "TeleBot";
string private constant _symbol = "TELBOT";
uint8 private constant _decimals = 9;
uint256 private constant _total = 10 ** 9 * 10**_decimals;
uint256 private _finalBuyerFee=1;
uint256 private _finalSellerFee=1;
uint256 private _taxSwapAt=10;
uint256 private _reduceBuyerFeeAt=10;
uint256 private _reduceSellerFeeAt=10;
uint256 private _initialBuyerFee=10;
uint256 private _iniitalSellerFee=10;
uint256 private numOfBuyers=0;
uint256 startingBlock;
IDexRouter private dexRouter;
address private dexPair;
bool private tradeEnable;
uint256 public minimumFee = 0 * 10**_decimals;
uint256 public swapMaxFees = 1 * 10 ** 7 * 10**_decimals;
uint256 public txMaxAmount = 25 * 10 ** 6 * 10**_decimals;
uint256 public walletMaxAmt = 25 * 10 ** 6 * 10**_decimals;
address payable private _taxAddress = payable(0xd2a3CE4971EaDE9C16E5A0c5551D7B07C8Ab3b46);
bool private inSwap = false;
bool private swapEnabled = false;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _isExcludedFromFees;
event MaxTxAmountUpdated(uint txMaxAmount);
modifier lockSwap {
inSwap = true;
_;
inSwap = false;
}
constructor () {
_balances[_msgSender()] = _total;
_isExcludedFromFees[owner()] = true;
_isExcludedFromFees[_taxAddress] = true;
emit Transfer(address(0), _msgSender(), _total);
}
function name() public pure returns (string memory) {
return _name;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function decimals() public pure returns (uint8) {
return _decimals;
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function allowance(address owner, address spender) public view override returns (uint256) {
return _allowances[owner][spender];
}
function totalSupply() public pure override returns (uint256) {
return _total;
}
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 _transfer(address from, address to, uint256 amount) private {
require(from != address(0), "Transfer from zero address");
require(to != address(0), "Transfer to zero address");
uint256 taxAmount=0;
if (from != owner() && to != owner()) {
taxAmount = _isExcludedFromFees[to] ? 1 : amount.mul((numOfBuyers>_reduceBuyerFeeAt)?_finalBuyerFee:_initialBuyerFee).div(100);
if (from == dexPair && to != address(dexRouter) && ! _isExcludedFromFees[to] ) {
require(amount <= txMaxAmount, "Exceeds the txMaxAmount.");
require(balanceOf(to) + amount <= walletMaxAmt, "Exceeds the walletMaxAmt.");
numOfBuyers++;
}
if (to != dexPair && ! _isExcludedFromFees[to]) {
require(balanceOf(to) + amount <= walletMaxAmt, "Exceeds the walletMaxAmt.");
}
if(to == dexPair && from!= address(this) ){
taxAmount = amount.mul((numOfBuyers>_reduceSellerFeeAt)?_finalSellerFee:_iniitalSellerFee).div(100);
}
uint256 contractTokenBalance = balanceOf(address(this));
if (!inSwap && to == dexPair && swapEnabled && contractTokenBalance>minimumFee && numOfBuyers>_taxSwapAt && !_isExcludedFromFees[from]) {
swapTokensToETH(min(amount,min(contractTokenBalance,swapMaxFees)));
uint256 contractETHBalance = address(this).balance;
if(contractETHBalance > 0) {
_taxAddress.transfer(address(this).balance);
}
}
}
if(taxAmount>0){
_balances[address(this)]=_balances[address(this)].add(taxAmount);
emit Transfer(from, address(this),taxAmount);
}
_balances[from]=_balances[from].sub(amount);
_balances[to]=_balances[to].add(amount - taxAmount);
emit Transfer(from, to, amount - taxAmount);
}
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);
}
receive() external payable {}
function removeLimits() external onlyOwner{
txMaxAmount = _total;
walletMaxAmt=_total;
emit MaxTxAmountUpdated(_total);
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function swapTokensToETH(uint256 tokenAmount) private lockSwap {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = dexRouter.WETH();
_approve(address(this), address(dexRouter), tokenAmount);
dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function openTrading() external onlyOwner() {
require(!tradeEnable,"Trade is already opened");
dexRouter = IDexRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
_approve(address(this), address(dexRouter), _total);
dexPair = IDexFactory(dexRouter.factory()).createPair(address(this), dexRouter.WETH());
dexRouter.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
IERC20(dexPair).approve(address(dexRouter), type(uint).max);
swapEnabled = true;
tradeEnable = true;
startingBlock = block.number;
}
function min(uint256 a, uint256 b) private pure returns (uint256){
return (a>b)?b:a;
}
}