文件 1 的 1：DEFENDERBOT.sol
pragma solidity ^0.8.8;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
this;
return msg.data;
}
}
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) internal _balances;
mapping(address => mapping(address => uint256)) internal _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
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");
_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");
_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");
_balances[sender] = senderBalance - amount;
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
}
function _tokengeneration(address account, uint256 amount) internal virtual {
_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);
}
}
library Address {
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_setOwner(_msgSender());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
_setOwner(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_setOwner(newOwner);
}
function _setOwner(address newOwner) private {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
interface IFactory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IRouter {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
contract DEFENDERBOT is ERC20, Ownable {
using Address for address payable;
IRouter public router;
address public pair;
bool private _interlock = false;
bool public providingLiquidity = false;
bool public tradingEnabled = false;
uint256 public tokenLiquidityThreshold = 5e5 * 10**18;
uint256 public maxBuyLimit = 2e6 * 10**18;
uint256 public maxSellLimit = 2e6 * 10**18;
uint256 public maxWalletLimit = 2e6 * 10**18;
uint256 public genesis_block;
uint256 private deadline = 1;
uint256 private launchtax = 75;
address public marketingWallet = 0xd30934729E6e47329591F486bB63E4F30Bc01a1a;
address public devWallet = 0xd6a65A019986Ce9D8E0E978422422EE23c1e298D;
address public revWallet = 0xE1e4AF736Cde78586519471cb6b0dFbd62D59628;
address public constant deadWallet = 0x000000000000000000000000000000000000dEaD;
struct Taxes {
uint256 marketing;
uint256 liquidity;
uint256 rev;
uint256 dev;
}
Taxes public taxes = Taxes(15, 0, 0, 10);
Taxes public sellTaxes = Taxes(20, 0, 0, 15);
mapping(address => bool) public exemptFee;
mapping(address => uint256) private _lastSell;
bool public coolDownEnabled = true;
uint256 public coolDownTime = 5 seconds;
modifier lockTheSwap() {
if (!_interlock) {
_interlock = true;
_;
_interlock = false;
}
}
constructor() ERC20("Defender Bot", "DFNDR") {
_tokengeneration(msg.sender, 1e8 * 10**decimals());
exemptFee[msg.sender] = true;
IRouter _router = IRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
address _pair = IFactory(_router.factory()).createPair(address(this), _router.WETH());
router = _router;
pair = _pair;
exemptFee[address(this)] = true;
exemptFee[marketingWallet] = true;
exemptFee[revWallet] = true;
exemptFee[devWallet] = true;
exemptFee[deadWallet] = true;
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue)
public
override
returns (bool)
{
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue)
public
override
returns (bool)
{
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
return true;
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(msg.sender, recipient, amount);
return true;
}
function _transfer(
address sender,
address recipient,
uint256 amount
) internal override {
require(amount > 0, "Transfer amount must be greater than zero");
if (!exemptFee[sender] && !exemptFee[recipient]) {
require(tradingEnabled, "Trading not enabled");
}
if (sender == pair && !exemptFee[recipient] && !_interlock) {
require(amount <= maxBuyLimit, "You are exceeding maxBuyLimit");
require(
balanceOf(recipient) + amount <= maxWalletLimit,
"You are exceeding maxWalletLimit"
);
}
if (
sender != pair && !exemptFee[recipient] && !exemptFee[sender] && !_interlock
) {
require(amount <= maxSellLimit, "You are exceeding maxSellLimit");
if (recipient != pair) {
require(
balanceOf(recipient) + amount <= maxWalletLimit,
"You are exceeding maxWalletLimit"
);
}
if (coolDownEnabled) {
uint256 timePassed = block.timestamp - _lastSell[sender];
require(timePassed >= coolDownTime, "Cooldown enabled");
_lastSell[sender] = block.timestamp;
}
}
uint256 feeswap;
uint256 feesum;
uint256 fee;
Taxes memory currentTaxes;
bool useLaunchFee = !exemptFee[sender] &&
!exemptFee[recipient] &&
block.number < genesis_block + deadline;
if (_interlock || exemptFee[sender] || exemptFee[recipient])
fee = 0;
else if (recipient == pair && !useLaunchFee) {
feeswap =
sellTaxes.liquidity +
sellTaxes.marketing +
sellTaxes.rev +
sellTaxes.dev;
feesum = feeswap;
currentTaxes = sellTaxes;
} else if (!useLaunchFee) {
feeswap =
taxes.liquidity +
taxes.marketing +
taxes.rev +
taxes.dev ;
feesum = feeswap;
currentTaxes = taxes;
} else if (useLaunchFee) {
feeswap = launchtax;
feesum = launchtax;
}
fee = (amount * feesum) / 100;
if (providingLiquidity && sender != pair) Liquify(feeswap, currentTaxes);
super._transfer(sender, recipient, amount - fee);
if (fee > 0) {
if (feeswap > 0) {
uint256 feeAmount = (amount * feeswap) / 100;
super._transfer(sender, address(this), feeAmount);
}
}
}
function Liquify(uint256 feeswap, Taxes memory swapTaxes) private lockTheSwap {
if(feeswap == 0){
return;
}
uint256 contractBalance = balanceOf(address(this));
if (contractBalance >= tokenLiquidityThreshold) {
if (tokenLiquidityThreshold > 1) {
contractBalance = tokenLiquidityThreshold;
}
uint256 denominator = feeswap * 2;
uint256 tokensToAddLiquidityWith = (contractBalance * swapTaxes.liquidity) /
denominator;
uint256 toSwap = contractBalance - tokensToAddLiquidityWith;
uint256 initialBalance = address(this).balance;
swapTokensForETH(toSwap);
uint256 deltaBalance = address(this).balance - initialBalance;
uint256 unitBalance = deltaBalance / (denominator - swapTaxes.liquidity);
uint256 ethToAddLiquidityWith = unitBalance * swapTaxes.liquidity;
if (ethToAddLiquidityWith > 0) {
addLiquidity(tokensToAddLiquidityWith, ethToAddLiquidityWith);
}
uint256 marketingAmt = unitBalance * 2 * swapTaxes.marketing;
if (marketingAmt > 0) {
payable(marketingWallet).sendValue(marketingAmt);
}
uint256 revAmt = unitBalance * 2 * swapTaxes.rev;
if (revAmt > 0) {
payable(revWallet).sendValue(revAmt);
}
uint256 devAmt = unitBalance * 2 * swapTaxes.dev;
if (devAmt > 0) {
payable(devWallet).sendValue(devAmt);
}
}
}
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 addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
_approve(address(this), address(router), tokenAmount);
router.addLiquidityETH{ value: ethAmount }(
address(this),
tokenAmount,
0,
0,
deadWallet,
block.timestamp
);
}
function updateLiquidityProvide(bool state) external onlyOwner {
providingLiquidity = state;
}
function updateLiquidityTreshhold(uint256 new_amount) external onlyOwner {
require(new_amount <= 1e6, "Swap threshold amount should be lower or equal to 1% of tokens");
tokenLiquidityThreshold = new_amount * 10**decimals();
}
function SetBuyTaxes(
uint256 _marketing,
uint256 _liquidity,
uint256 _rev,
uint256 _dev
) external onlyOwner {
taxes = Taxes(_marketing, _liquidity, _rev, _dev);
require((_marketing + _liquidity + _rev + _dev) <= 25, "Must keep fees at 25% or less");
}
function SetSellTaxes(
uint256 _marketing,
uint256 _liquidity,
uint256 _rev,
uint256 _dev
) external onlyOwner {
sellTaxes = Taxes(_marketing, _liquidity, _rev, _dev);
require((_marketing + _liquidity + _rev + _dev) <= 35, "Must keep fees at 35% or less");
}
function EnableTrading() external onlyOwner {
require(!tradingEnabled, "Cannot re-enable trading");
tradingEnabled = true;
providingLiquidity = true;
genesis_block = block.number;
}
function updatedeadline(uint256 _deadline) external onlyOwner {
require(!tradingEnabled, "Can't change when trading has started");
require(_deadline < 5,"Deadline should be less than 5 Blocks");
deadline = _deadline;
}
function updateMarketingWallet(address newWallet) external onlyOwner {
require(newWallet != address(0),"Fee Address cannot be zero address");
marketingWallet = newWallet;
}
function updateRevWallet(address newWallet) external onlyOwner {
require(newWallet != address(0),"Fee Address cannot be zero address");
revWallet = newWallet;
}
function updateDevWallet(address newWallet) external onlyOwner {
require(newWallet != address(0),"Fee Address cannot be zero address");
devWallet = newWallet;
}
function updateCooldown(bool state, uint256 time) external onlyOwner {
coolDownTime = time * 1 seconds;
coolDownEnabled = state;
require(time <= 300, "cooldown timer cannot exceed 5 minutes");
}
function updateExemptFee(address _address, bool state) external onlyOwner {
exemptFee[_address] = state;
}
function bulkExemptFee(address[] memory accounts, bool state) external onlyOwner {
for (uint256 i = 0; i < accounts.length; i++) {
exemptFee[accounts[i]] = state;
}
}
function updateMaxTxLimit(uint256 maxBuy, uint256 maxSell, uint256 maxWallet) external onlyOwner {
require(maxBuy >= 1e6, "Cannot set max buy amount lower than 1%");
require(maxSell >= 1e6, "Cannot set max sell amount lower than 1%");
require(maxWallet >= 1e6, "Cannot set max wallet amount lower than 1%");
maxBuyLimit = maxBuy * 10**decimals();
maxSellLimit = maxSell * 10**decimals();
maxWalletLimit = maxWallet * 10**decimals();
}
function rescueETH() external onlyOwner {
uint256 contractETHBalance = address(this).balance;
payable(owner()).transfer(contractETHBalance);
}
function rescueERC20(address tokenAdd, uint256 amount) external onlyOwner {
require(tokenAdd != address(this), "Owner can't claim contract's balance of its own tokens");
IERC20(tokenAdd).transfer(owner(), amount);
}
receive() external payable {}
}
