Contract Source Code:
File 1 of 1 : peppino
/**
peppino
TG: https://t.me/peppinoERC
Website: https://peppino.io
this is your opportunity at the next meme, do not miss it...
*/
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {return a + b;}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {return a - b;}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {return a * b;}
function div(uint256 a, uint256 b) internal pure returns (uint256) {return a / b;}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {return a % b;}
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {uint256 c = a + b; if(c < a) return(false, 0); return(true, c);}}
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {if(b > a) return(false, 0); return(true, a - b);}}
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {if (a == 0) return(true, 0); uint256 c = a * b;
if(c / a != b) return(false, 0); return(true, c);}}
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {if(b == 0) return(false, 0); return(true, a / b);}}
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {if(b == 0) return(false, 0); return(true, a % b);}}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked{require(b <= a, errorMessage); return a - b;}}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked{require(b > 0, errorMessage); return a / b;}}
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked{require(b > 0, errorMessage); return a % b;}}}
interface IERC20 {
function totalSupply() external view returns (uint256);
function circulatingSupply() 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 getOwner() external view returns (address);
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);}
abstract contract Ownable {
address internal owner;
constructor(address _owner) {owner = _owner;}
modifier onlyOwner() {require(isOwner(msg.sender), "!OWNER"); _;}
function isOwner(address account) public view returns (bool) {return account == owner;}
function transferOwnership(address payable adr) public onlyOwner {owner = adr; emit OwnershipTransferred(adr);}
event OwnershipTransferred(address owner);
}
interface IFactory{
function createPair(address tokenA, address tokenB) external returns (address pair);
function getPair(address tokenA, address tokenB) external view returns (address pair);
}
interface IRouter {
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 swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
contract peppino is IERC20, Ownable {
using SafeMath for uint256;
string private constant _name = 'peppino';
string private constant _symbol = 'PEPPINO';
uint8 private constant _decimals = 9;
uint256 private _totalSupply = 1000000000 * (10 ** _decimals);
uint256 public _maxTxAmount = ( _totalSupply * 200 ) / 10000;
uint256 public _maxWalletToken = ( _totalSupply * 200 ) / 10000;
mapping (address => uint256) _balances;
mapping (address => mapping (address => uint256)) private _allowances;
mapping(address => bool) private isFeeExempt;
IRouter router;
address public pair;
uint256 private totalFee = 200;
uint256 private sellFee = 200;
uint256 private transferFee = 0;
uint256 private denominator = 10000;
bool private swapEnabled = true;
bool private tradingAllowed = false;
uint256 private swapTimes;
bool private swapping;
uint256 private swapAmount = 1;
uint256 private swapThreshold = ( _totalSupply * 300 ) / 100000;
uint256 private minTokenAmount = ( _totalSupply * 10 ) / 100000;
modifier lockTheSwap {swapping = true; _; swapping = false;}
address internal constant DEAD = 0x000000000000000000000000000000000000dEaD;
address internal contract_receiver;
event TradingEnabled(address indexed account, uint256 indexed timestamp);
event ExcludeFromFees(address indexed account, bool indexed isExcluded, uint256 indexed timestamp);
event SetInternalAddresses(address indexed contract_receiver, uint256 timestamp);
event SetSwapBackSettings(uint256 indexed swapAmount, uint256 indexed swapThreshold, uint256 indexed swapMinAmount, uint256 timestamp);
event SetParameters(uint256 indexed maxTxAmount, uint256 indexed maxWalletToken, uint256 indexed timestamp);
event SetStructure(uint256 indexed total, uint256 indexed sell, uint256 transfer, uint256 indexed timestamp);
event CreateLiquidity(uint256 indexed tokenAmount, uint256 indexed ETHAmount, address indexed wallet, uint256 timestamp);
constructor() Ownable(msg.sender) {
IRouter _router = IRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
address _pair = IFactory(_router.factory()).createPair(address(this), _router.WETH());
router = _router;
pair = _pair;
contract_receiver = msg.sender;
isFeeExempt[address(this)] = true;
isFeeExempt[contract_receiver] = true;
isFeeExempt[address(DEAD)] = true;
isFeeExempt[msg.sender] = true;
_balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
}
receive() external payable {}
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 getOwner() external view override returns (address) { return owner; }
function totalSupply() public view override returns (uint256) {return _totalSupply;}
function balanceOf(address account) public view override returns (uint256) {return _balances[account];}
function transfer(address recipient, uint256 amount) public override returns (bool) {_transfer(msg.sender, 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(msg.sender, spender, amount);return true;} function circulatingSupply() public view override returns (uint256) {return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(address(0)));}
function preTxCheck(address sender, address recipient, uint256 amount) internal view {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
require(amount <= balanceOf(sender),"ERC20: below available balance threshold");
}
function _transfer(address sender, address recipient, uint256 amount) private {
preTxCheck(sender, recipient, amount);
checkTradingAllowed(sender, recipient);
checkTxLimit(sender, recipient, amount);
checkMaxWallet(sender, recipient, amount);
swapbackCounters(sender, recipient, amount);
swapBack(sender, recipient);
_balances[sender] = _balances[sender].sub(amount);
uint256 amountReceived = shouldTakeFee(sender, recipient) ? takeFee(sender, recipient, amount) : amount;
_balances[recipient] = _balances[recipient].add(amountReceived);
emit Transfer(sender, recipient, amountReceived);
}
function checkTradingAllowed(address sender, address recipient) internal view {
if(!isFeeExempt[sender] && !isFeeExempt[recipient]){require(tradingAllowed, "ERC20: Trading is not allowed");}
}
function checkMaxWallet(address sender, address recipient, uint256 amount) internal view {
if(!isFeeExempt[sender] && !isFeeExempt[recipient] && recipient != address(pair) && recipient != address(DEAD)){
require((_balances[recipient].add(amount)) <= _maxWalletToken, "ERC20: exceeds maximum wallet amount.");}
}
function swapbackCounters(address sender, address recipient, uint256 amount) internal {
if(recipient == pair && !isFeeExempt[sender] && amount >= minTokenAmount && !swapping){swapTimes += uint256(1);}
}
function checkTxLimit(address sender, address recipient, uint256 amount) internal view {
require(amount <= _maxTxAmount || isFeeExempt[sender] || isFeeExempt[recipient], "ERC20: tx limit exceeded");
}
function swapAndLiquify(uint256 tokens) private lockTheSwap {
swapTokensForETH(tokens);
uint256 eBalance = address(this).balance;
if(eBalance > uint256(0)){payable(contract_receiver).transfer(eBalance);}
}
function addLiquidity(uint256 tokenAmount, uint256 ETHAmount, address receiver) private {
_approve(address(this), address(router), tokenAmount);
router.addLiquidityETH{value: ETHAmount}(
address(this),
tokenAmount,
0,
0,
address(receiver),
block.timestamp);
}
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 createLiquidity(uint256 tokenAmount) payable public {
swapping = true; _approve(msg.sender, address(this), tokenAmount);
_approve(msg.sender, address(router), tokenAmount);
_transfer(msg.sender, address(this), tokenAmount);
_approve(address(this), address(router), tokenAmount);
addLiquidity(tokenAmount, msg.value, msg.sender); swapping = false;
emit CreateLiquidity(tokenAmount, msg.value, msg.sender, block.timestamp);
}
function shouldSwapBack(address sender, address recipient) internal view returns (bool) {
bool aboveThreshold = balanceOf(address(this)) >= swapThreshold;
return !swapping && swapEnabled && tradingAllowed && !isFeeExempt[sender]
&& recipient == pair && swapTimes >= swapAmount && aboveThreshold;
}
function swapBack(address sender, address recipient) internal {
if(shouldSwapBack(sender, recipient)){swapAndLiquify(swapThreshold); swapTimes = uint256(0);}
}
function startTrading() external onlyOwner {
tradingAllowed = true;
emit TradingEnabled(msg.sender, block.timestamp);
}
function setInternalAddress(address _contract) external onlyOwner {
contract_receiver = _contract;
isFeeExempt[_contract] = true;
emit SetInternalAddresses(_contract, block.timestamp);
}
function setisExempt(address _address, bool _enabled) external onlyOwner {
isFeeExempt[_address] = _enabled;
emit ExcludeFromFees(_address, _enabled, block.timestamp);
}
function rescueERC20(address _address, uint256 _amount) external onlyOwner {
IERC20(_address).transfer(contract_receiver, _amount);
}
function setSwapbackSettings(uint256 _swapAmount, uint256 _swapThreshold, uint256 _minTokenAmount) external onlyOwner {
swapAmount = _swapAmount; swapThreshold = _totalSupply.mul(_swapThreshold).div(uint256(100000)); minTokenAmount = _totalSupply.mul(_minTokenAmount).div(uint256(100000));
}
function shouldTakeFee(address sender, address recipient) internal view returns (bool) {
return !isFeeExempt[sender] && !isFeeExempt[recipient];
}
function getTotalFee(address sender, address recipient) internal view returns (uint256) {
if(recipient == pair && sellFee > uint256(0)){return sellFee;}
if(sender == pair && totalFee > uint256(0)){return totalFee;}
return transferFee;
}
function takeFee(address sender, address recipient, uint256 amount) internal returns (uint256) {
if(getTotalFee(sender, recipient) > 0){
uint256 feeAmount = amount.div(denominator).mul(getTotalFee(sender, recipient));
_balances[address(this)] = _balances[address(this)].add(feeAmount);
emit Transfer(sender, address(this), feeAmount);
return amount.sub(feeAmount);} return amount;
}
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
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);
}
}