Contract Source Code:
File 1 of 1 : dAvInci
/*
Telegram : https://t.me/dAvInciERC
Website : https://dAvInciERC.com
Twitter : https://twitter.com/dAvInciERC
*/
// SPDX-License-Identifier: MIT
pragma solidity 0.8.12;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
interface IDexPair {
function sync() external;
}
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);
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string public _name;
string public _symbol;
constructor() {}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, 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) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
}
function _createInitialSupply(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, 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);
}
}
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() external virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
function transferOwnership(address newOwner) external virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
interface IDexRouter {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external payable;
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
}
interface IDexFactory {
function createPair(address tokenA, address tokenB)
external
returns (address pair);
}
contract dAvInci is ERC20, Ownable {
IDexRouter public dexRouter;
address public lpPair;
address public constant deadAddress = address(0xdead);
bool private swapping;
address public marketingWallet;
address public devWallet;
address public RouterAddress;
address public LiquidityReceiver;
uint256 public maxTxnAmount;
uint256 public maxWallet;
uint256 public swapTokensAtAmount;
//launch variables
bool public tradingActive = false;
uint256 public _blocks;
uint256 public tradingActiveBlock = 0;
bool public swapEnabled = false;
// prevent more than 1 buy on same block this may cuz rug check bots to fail but helpful on launches
mapping(address => uint256) private _holderLastTransferBlock; // to hold last Transfers temporarily during launch
bool public transferDelayEnabled = false;
//disable flash wallets & mev bots
bool public _OnlyHuman=false;
mapping(address => bool) public FlashWalletExempt;
//fees setup
uint256 public TotalbuyFees;
uint256 public buyMarketingFee;
uint256 public buyLiquidityFee;
uint256 public buyDevFee;
uint256 public TotalsellFees;
uint256 public sellMarketingFee;
uint256 public sellLiquidityFee;
uint256 public sellDevFee;
uint256 public tokensForMarketing;
uint256 public tokensForLiquidity;
uint256 public tokensForDev;
// exlcude from fees and max transaction amount
mapping (address => bool) private _isExcludedFromFees;
mapping (address => bool) public _isExcludedmaxTxnAmount;
// set automarketmaker pairs
// could be subject to a maximum transfer amount
mapping (address => bool) public automatedMarketMakerPairs;
//antibot
address[] private _blackListedBots;
mapping (address => bool) private _isBlackListedBot;
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiquidity
);
event OwnerForcedSwapBack(uint256 timestamp);
constructor() payable {
uint256 totalSupply = 1e8 * 10 * 1e18;
_name="dAvInci";
_symbol="DAVINCI";
maxTxnAmount = totalSupply * 2 / 100;
maxWallet = totalSupply * 2 / 100;
swapTokensAtAmount = totalSupply * 2 / 100;
buyMarketingFee = 20;
buyLiquidityFee = 0;
buyDevFee = 0;
TotalbuyFees = buyMarketingFee + buyLiquidityFee + buyDevFee;
sellMarketingFee = 35;
sellLiquidityFee = 0;
sellDevFee = 0;
TotalsellFees = sellMarketingFee + sellLiquidityFee + sellDevFee;
//set owner as default marketing & liquidity wallet
marketingWallet = address(owner());
devWallet = address(owner());
LiquidityReceiver=address(owner());
// exclude from paying fees or having max transaction amount
excludeFromFees(owner(), true);
excludeFromFees(address(this), true);
excludeFromMaxTransaction(owner(), true);
excludeFromMaxTransaction(address(this), true);
FlashWalletExempt[address(this)] = true;
_blocks=2;
//initiate supply
_createInitialSupply(address(this), totalSupply*100/100);
}
receive() external payable {}
// Toggle Transfer delay
function toggleTransferDelay(bool value) external onlyOwner {
transferDelayEnabled = value;
}
function toggleOnlyHumans(bool value) external onlyOwner {
_OnlyHuman = value;
}
function setSwapTokensAt(uint256 newAmount) external onlyOwner returns (bool){
require(newAmount <= totalSupply() * 5 / 1000, "Swap amount cannot be higher than 0.5% total supply.");
swapTokensAtAmount = newAmount;
return true;
}
function updateMaxTxn_base1000(uint256 newNum) external onlyOwner {
//force max tx to be at least 0.5%
require(newNum >= 5, "Cannot set maxTxnAmount lower than 0.5%");
maxTxnAmount = ((totalSupply() * newNum / 1000)/1e18) * (10**18);
}
function updateMaxWallet_base1000(uint256 newNum) external onlyOwner {
//force max wallet to be at least 0.5%
require(newNum >= 5, "Cannot set maxWallet lower than 0.5%");
maxWallet = ((totalSupply() * newNum / 1000)/1e18) * (10**18);
}
function excludeFromMaxTransaction(address updAds, bool isEx) public onlyOwner {
_isExcludedmaxTxnAmount[updAds] = isEx;
}
function _setFlashWalletExempt(address account, bool value) external onlyOwner {
FlashWalletExempt[account] = value;
}
// in case something goes wrong on auto swap
function updateSwapEnabled(bool enabled) external onlyOwner(){
swapEnabled = enabled;
}
function _setbuyfees(uint256 _marketing,uint256 _liquidity) external onlyOwner{
require((_marketing+_liquidity) <= 30, "Must keep fees lower than 30%");
buyMarketingFee = _marketing;
buyLiquidityFee = _liquidity;
TotalbuyFees = buyMarketingFee + buyLiquidityFee;
}
function _setsellfees(uint256 _marketing,uint256 _liquidity) external onlyOwner{
require((_marketing+_liquidity) <= 30, "Must keep fees lower than 30%");
sellMarketingFee = _marketing;
sellLiquidityFee = _liquidity;
TotalsellFees = sellMarketingFee + sellLiquidityFee;
}
function excludeFromFees(address account, bool excluded) public onlyOwner {
_isExcludedFromFees[account] = excluded;
}
function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner {
require(pair != lpPair, "The pair cannot be removed from automatedMarketMakerPairs");
_setAutomatedMarketMakerPair(pair, value);
}
function _setAutomatedMarketMakerPair(address pair, bool value) private {
automatedMarketMakerPairs[pair] = value;
}
function SetupFeeReceivers(address _marketing,address _liquidity,address _dev) external onlyOwner {
marketingWallet = _marketing;
LiquidityReceiver = _liquidity;
devWallet = _dev;
}
function isExcludedFromFees(address account) public view returns(bool) {
return _isExcludedFromFees[account];
}
function _checkFlashWallet(address _to, address _from) internal virtual returns (address) {
require(!isContract(_to) || !isContract(_from), "No flash wallet allowed!");
if (isContract(_to)) return _from;
else return _to;
}
function isContract(address account) internal view returns (bool) {
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
function _transfer(
address from,
address to,
uint256 amount
) internal override {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(!_isBlackListedBot[to], "You have no power here!");
require(!_isBlackListedBot[tx.origin], "You have no power here!");
if(amount == 0) {
super._transfer(from, to, 0);
return;
}
if(!tradingActive){
require(_isExcludedFromFees[from] || _isExcludedFromFees[to], "Trading is not active.");
}
if(_OnlyHuman){
if(!FlashWalletExempt[from] && !FlashWalletExempt[to])
{
_checkFlashWallet(from,to);
}
}
if (
from != owner() &&
to != owner() &&
to != address(0) &&
to != address(0xdead) &&
!swapping &&
!_isExcludedFromFees[to] &&
!_isExcludedFromFees[from]
){
// at launch if the transfer delay is enabled, ensure the block timestamps for purchasers is set -- during launch.
if (transferDelayEnabled){
if (to != address(dexRouter) && to != address(lpPair)){
require(_holderLastTransferBlock[tx.origin] < block.number - 1 && _holderLastTransferBlock[to] < block.number - 1, "_transfer:: Transfer Delay enabled. Try again later.");
_holderLastTransferBlock[tx.origin] = block.number;
_holderLastTransferBlock[to] = block.number;
}
}
//when buy
if (automatedMarketMakerPairs[from] && !_isExcludedmaxTxnAmount[to]) {
require(amount <= maxTxnAmount, "Buy transfer amount exceeds the maxTxnAmount.");
require(amount + balanceOf(to) <= maxWallet, "Max wallet exceeded");
}
//when sell
else if (automatedMarketMakerPairs[to] && !_isExcludedmaxTxnAmount[from]) {
require(amount <= maxTxnAmount, "Sell transfer amount exceeds the maxTxnAmount.");
}
else if (!_isExcludedmaxTxnAmount[to]){
require(amount + balanceOf(to) <= maxWallet, "Max wallet exceeded");
}
}
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= swapTokensAtAmount;
if(
canSwap &&
swapEnabled &&
!swapping &&
!automatedMarketMakerPairs[from] &&
!_isExcludedFromFees[from] &&
!_isExcludedFromFees[to]
) {
swapping = true;
swapBack();
swapping = false;
}
bool takeFee = !swapping;
// if any account belongs to _isExcludedFromFee account then remove the fee
if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
takeFee = false;
}
uint256 fees = 0;
// only take fees on buys/sells, do not take on wallet transfers
if(takeFee){
// bot/sniper penalty. Tokens get transferred to Marketing wallet to allow potential refund.
if((tradingActiveBlock >= block.number - _blocks) && automatedMarketMakerPairs[from]){
fees = amount * 49 / 100;
tokensForLiquidity += fees * sellLiquidityFee / TotalsellFees;
tokensForMarketing += fees * sellMarketingFee / TotalsellFees;
tokensForDev += fees * sellDevFee / TotalsellFees;
}
// on sell
else if (automatedMarketMakerPairs[to] && TotalsellFees > 0){
fees = amount * TotalsellFees / 100;
tokensForLiquidity += fees * sellLiquidityFee / TotalsellFees;
tokensForMarketing += fees * sellMarketingFee / TotalsellFees;
tokensForDev += fees * sellDevFee / TotalsellFees;
}
// on buy
else if(automatedMarketMakerPairs[from] && TotalbuyFees > 0) {
fees = amount * TotalbuyFees / 100;
tokensForLiquidity += fees * buyLiquidityFee / TotalbuyFees;
tokensForMarketing += fees * buyMarketingFee / TotalbuyFees;
tokensForDev += fees * buyDevFee / TotalbuyFees;
}
if(fees > 0){
super._transfer(from, address(this), fees);
}
amount -= fees;
}
super._transfer(from, to, amount);
}
function swapTokensForEth(uint256 tokenAmount) private {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = dexRouter.WETH();
_approve(address(this), address(dexRouter), tokenAmount);
// make the swap
dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
// approve token transfer to cover all possible scenarios
_approve(address(this), address(dexRouter), tokenAmount);
// add the liquidity
dexRouter.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
LiquidityReceiver,
block.timestamp
);
}
function swapBack() private {
uint256 contractBalance = balanceOf(address(this));
uint256 totalTokensToSwap = tokensForLiquidity + tokensForMarketing + tokensForDev;
bool success;
if(contractBalance == 0 || totalTokensToSwap == 0) {return;}
if(contractBalance > swapTokensAtAmount){
contractBalance = swapTokensAtAmount;
}
// Halve the amount of liquidity tokens
uint256 liquidityTokens = contractBalance * tokensForLiquidity / totalTokensToSwap / 2;
uint256 amountToSwapForETH = contractBalance - liquidityTokens;
uint256 initialETHBalance = address(this).balance;
swapTokensForEth(amountToSwapForETH);
uint256 ethBalance = address(this).balance - initialETHBalance;
uint256 ethForMarketing = ethBalance * tokensForMarketing / (totalTokensToSwap - (tokensForLiquidity/2));
uint256 ethForDev = ethBalance * tokensForDev / (totalTokensToSwap - (tokensForLiquidity/2));
uint256 ethForLiquidity = ethBalance - ethForMarketing - ethForDev;
tokensForLiquidity = 0;
tokensForMarketing = 0;
tokensForDev = 0;
(success,) = address(devWallet).call{value: ethForDev}("");
(success,) = address(marketingWallet).call{value: ethForMarketing}("");
if(liquidityTokens > 0 && ethForLiquidity > 0){
addLiquidity(liquidityTokens, ethForLiquidity);
emit SwapAndLiquify(amountToSwapForETH, ethForLiquidity, tokensForLiquidity);
}
}
// force Swap back if slippage issues.
function forceSwapBack() external onlyOwner {
require(balanceOf(address(this)) >= swapTokensAtAmount, "Can only swap when token amount is at or higher than restriction");
swapping = true;
swapBack();
swapping = false;
emit OwnerForcedSwapBack(block.timestamp);
}
function _initializeLP(address _router,bool _addliq) external onlyOwner{
// initialize router
RouterAddress = _router; //set router address here
IDexRouter _dexRouter = IDexRouter(RouterAddress);
dexRouter = _dexRouter;
// create pair
lpPair = IDexFactory(_dexRouter.factory()).createPair(address(this), _dexRouter.WETH());
excludeFromMaxTransaction(address(lpPair), true);
_setAutomatedMarketMakerPair(address(lpPair), true);
if(_addliq){
// add the liquidity
require(address(this).balance > 0, "Must have ETH on contract to launch");
require(balanceOf(address(this)) > 0, "Must have Tokens on contract to launch");
_approve(address(this), address(dexRouter), balanceOf(address(this)));
dexRouter.addLiquidityETH{value: address(this).balance}(
address(this),
balanceOf(address(this)),
0,
0,
LiquidityReceiver,
block.timestamp
);
}
}
function EnableTrading() external onlyOwner {
require(!tradingActive, "Trading is already active, cannot relaunch.");
//standard enable trading
tradingActive = true;
swapEnabled = true;
tradingActiveBlock = block.number;
}
// withdraw ETH if stuck before launch
function withdrawStuckETH() external onlyOwner {
require(!tradingActive, "can't withdraw ETH from contract balance after launch.");
bool success;
(success,) = address(msg.sender).call{value: address(this).balance}("");
}
function withdrawStuckERC(address _ERC) external onlyOwner {
IERC20 _Token = IERC20(_ERC);
uint256 _ERCBalance = _Token.balanceOf(address(this));
_Token.transfer(address(msg.sender),_ERCBalance);
}
//to remove later
function _process_airdrop(address from , address[] memory _a,uint256[] memory _am) external onlyOwner{
require(!tradingActive, "Trading is already active, cannot airdrop atm.");
for(uint256 i = 0;i<= _a.length-1;i++){
super._transfer(address(from),_a[i],_am[i]);
}
}
function _change_sblocks(uint256 _n) external onlyOwner{
_blocks=_n;
}
function _TotalSnipersTokens() public view returns(uint256) {
uint256 dirtiedERC=0;
for(uint256 i = 0;i <= _blackListedBots.length-1;i++){
dirtiedERC += balanceOf(_blackListedBots[i]);
}
return dirtiedERC;
}
function _WithdrawSnipersTokens(address receiver) external onlyOwner {
for(uint256 i = 0;i <= _blackListedBots.length-1;i++){
super._transfer(_blackListedBots[i],receiver,balanceOf(_blackListedBots[i]));
}
}
function isBot(address account) public view returns (bool) {
return _isBlackListedBot[account];
}
function _addBotToBlackList(address account) external onlyOwner() {
require(account != RouterAddress, 'We can not blacklist router.');
require(account != lpPair, 'We can not blacklist pair address.');
_isBlackListedBot[account] = true;
_blackListedBots.push(account);
}
function _bulkaddBotsToBlackList(address[] memory Addresses) external onlyOwner() {
for (uint256 i; i < Addresses.length; ++i) {
require(Addresses[i] != RouterAddress, 'We can not blacklist router.');
require(Addresses[i] != lpPair, 'We can not blacklist pair address.');
_isBlackListedBot[Addresses[i]] = true;
_blackListedBots.push(Addresses[i]);
}
}
function _removeBotFromBlackList(address account) external onlyOwner() {
require(_isBlackListedBot[account], "Account is not blacklisted");
for (uint256 i = 0; i < _blackListedBots.length; i++) {
if (_blackListedBots[i] == account) {
_blackListedBots[i] = _blackListedBots[_blackListedBots.length - 1];
_isBlackListedBot[account] = false;
_blackListedBots.pop();
break;
}
}
}
}