zellic-audit
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// This contract is part of Zellic’s smart contract dataset, which is a collection of publicly available contract code gathered as of March 2023.
// SPDX-License-Identifier: Unlicensed
pragma solidity 0.8.15;
abstract contract Context
{
function _msgSender() internal view virtual returns (address payable) {
return payable(msg.sender);
}
function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
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);
}
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;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
library Address {
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
contract Ownable is Context
{
address private _owner;
address private _previousOwner;
uint256 private _lockTime;
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);
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
function getUnlockTime() public view returns (uint256) {
return _lockTime;
}
function getTime() public view returns (uint256) {
return block.timestamp;
}
function lock(uint256 time) public virtual onlyOwner {
_previousOwner = _owner;
_owner = address(0);
_lockTime = block.timestamp + time;
emit OwnershipTransferred(_owner, address(0));
}
function unlock() public virtual {
require(_previousOwner == msg.sender, "You don't have permission to unlock");
require(block.timestamp > _lockTime , "Contract is locked until 7 days");
emit OwnershipTransferred(_owner, _previousOwner);
_owner = _previousOwner;
}
}
// pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// pragma solidity >=0.6.2;
interface IUniswapV2Router01 {
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 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);
}
// pragma solidity >=0.6.2;
interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountETH);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
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 swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
contract LockToken is Ownable {
bool public isOpen = false;
mapping(address => bool) private _whiteList;
modifier open(address from, address to) {
require(isOpen || _whiteList[from] || _whiteList[to] || owner() == _msgSender(), "Not Open");
_;
}
constructor() {
_whiteList[owner()] = true;
_whiteList[address(this)] = true;
}
function includeToWhiteList(address[] memory _users) external onlyOwner {
for(uint8 i = 0; i < _users.length; i++) {
_whiteList[_users[i]] = true;
}
}
}
contract MIKAWAINU is Context, IERC20, LockToken
{
using SafeMath for uint256;
using Address for address;
address payable public marketingAddress = payable(0x457935749AA13508390F807edFb25D5Ead8e484F);
mapping (address => uint256) private _rOwned;
mapping (address => uint256) private _tOwned;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _isExcludedFromFee;
mapping (address => bool) private _isExcluded;
mapping (address => bool) private _isExemptFromTxLimit;
address[] private _excluded;
uint256 private constant MAX = ~uint256(0);
uint256 private _tTotal = 100000000000 * 10**18;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
string private _name = "MIKAWA INU";
string private _symbol = "MIKA";
uint8 private _decimals = 18;
uint256 public _lpFee = 10; // 1%
uint256 private _previouslpFee = _lpFee;
uint256 public _marketingFee = 10; // 1%
uint256 private _previousMarketingFee = _marketingFee;
uint256 _salelpFee = 30; // 3%
uint256 _saleMarketingFee = 20; //2%
uint256 public _maxTxAmount = _tTotal / 100; // 1%
uint256 private _minimumTokensBeforeSwap = 10000 * 10**18;
IUniswapV2Router02 public immutable uniswapV2Router;
address public uniswapV2Pair;
IUniswapV2Router02 _uniswapV2Router;
bool inSwapAndLiquify;
bool public swapAndLiquifyEnabled = false;
event RewardLiquidityProviders(uint256 tokenAmount);
event SwapAndLiquifyEnabledUpdated(bool enabled);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiqudity
);
event SwapETHForTokens(
uint256 amountIn,
address[] path
);
event SwapTokensForETH(
uint256 amountIn,
address[] path
);
modifier lockTheSwap {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}
constructor ()
{
_rOwned[owner()] = _rTotal;
_uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
uniswapV2Router = _uniswapV2Router;
emit Transfer(address(0), owner(), _tTotal);
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[marketingAddress] = true;
_isExemptFromTxLimit[owner()] = true;
_isExemptFromTxLimit[address(this)] = true;
_isExemptFromTxLimit[marketingAddress] = true;
excludeWalletsFromWhales();
}
function name() public view returns (string memory) {
return _name;
}
function symbol() public view returns (string memory) {
return _symbol;
}
function decimals() public view returns (uint8) {
return _decimals;
}
function totalSupply() public view override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
if (_isExcluded[account]) return _tOwned[account];
return tokenFromReflection(_rOwned[account]);
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(_msgSender(), 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(_msgSender(), spender, amount);
return true;
}
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 increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
function isExcludedFromReward(address account) public view returns (bool)
{
return _isExcluded[account];
}
function totalFees() public view returns (uint256)
{
return _tFeeTotal;
}
function _minimumTokensBeforeSwapAmount() public view returns (uint256)
{
return _minimumTokensBeforeSwap;
}
function tokenFromReflection(uint256 rAmount) public view returns(uint256)
{
require(rAmount <= _rTotal, "Amount must be less than total reflections");
uint256 currentRate = _getRate();
return rAmount.div(currentRate);
}
function excludeFromReward(address account) public onlyOwner()
{
require(!_isExcluded[account], "Account is already excluded");
if(_rOwned[account] > 0) {
_tOwned[account] = tokenFromReflection(_rOwned[account]);
}
_isExcluded[account] = true;
_excluded.push(account);
}
function includeInReward(address account) external onlyOwner() {
require(_isExcluded[account], "Account is already excluded");
for (uint256 i = 0; i < _excluded.length; i++) {
if (_excluded[i] == account) {
_excluded[i] = _excluded[_excluded.length - 1];
_tOwned[account] = 0;
_isExcluded[account] = false;
_excluded.pop();
break;
}
}
}
function isExcludedFromFee(address account) external view returns(bool) {
return _isExcludedFromFee[account];
}
function excludeFromFee(address account) external onlyOwner {
_isExcludedFromFee[account] = true;
}
function includeInFee(address account) external onlyOwner {
_isExcludedFromFee[account] = false;
}
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);
}
function _transfer(address from, address to, uint256 amount) private open(from, to)
{
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
if(!_isExemptFromTxLimit[from] && !_isExemptFromTxLimit[to])
{
require(amount <= _maxTxAmount, "Exceeds Max Tx Amount");
}
checkForWhale(from, to, amount);
checkForBlackList(from, to);
uint256 contractTokenBalance = balanceOf(address(this));
bool overMinimumTokenBalance = contractTokenBalance >= _minimumTokensBeforeSwap;
if (!inSwapAndLiquify && swapAndLiquifyEnabled && from != uniswapV2Pair) {
if (overMinimumTokenBalance)
{
contractTokenBalance = _minimumTokensBeforeSwap;
swapAndLiquify(contractTokenBalance);
}
}
if(to==uniswapV2Pair) { setSaleFee(); }
bool takeFee = true;
//if any account belongs to _isExcludedFromFee account then remove the fee
if(_isExcludedFromFee[from] || _isExcludedFromFee[to])
{
takeFee = false;
}
_tokenTransfer(from, to, amount, takeFee);
}
function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap
{
uint256 __totalFee = _marketingFee.add(_lpFee);
uint256 initialBalance = address(this).balance;
uint256 amountToLiquify = contractTokenBalance.mul(_lpFee).div(__totalFee).div(2);
uint256 amountToSwap = contractTokenBalance.sub(amountToLiquify);
swapTokensForEth(amountToSwap);
uint256 newBalance = address(this).balance.sub(initialBalance);
uint256 ethForlp = newBalance.mul(_lpFee).div(__totalFee).div(2);
uint256 ethForMarketing = newBalance.sub(ethForlp);
marketingAddress.transfer(ethForMarketing);
if (amountToLiquify > 0) {
_approve(address(this), address(uniswapV2Router), amountToLiquify);
_uniswapV2Router.addLiquidityETH{value: ethForlp}(
address(this),
amountToLiquify,
0,
0,
0x000000000000000000000000000000000000dEaD,
block.timestamp
);
}
emit SwapAndLiquify(contractTokenBalance, newBalance, contractTokenBalance);
}
function swapTokensForEth(uint256 tokenAmount) private {
// generate the uniswap pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
// make the swap
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this), // The contract
block.timestamp
);
emit SwapTokensForETH(tokenAmount, path);
}
function _tokenTransfer(address sender, address recipient, uint256 amount, bool takeFee) private
{
if(!takeFee) { removeAllFee(); }
if (_isExcluded[sender] && !_isExcluded[recipient])
{
_transferFromExcluded(sender, recipient, amount);
}
else if (!_isExcluded[sender] && _isExcluded[recipient])
{
_transferToExcluded(sender, recipient, amount);
}
else if(_isExcluded[sender] && _isExcluded[recipient])
{
_transferBothExcluded(sender, recipient, amount);
}
else
{
_transferStandard(sender, recipient, amount);
}
restoreAllFee();
}
function _transferStandard(address sender, address recipient, uint256 tAmount) private
{
(uint256 rAmount, uint256 rTransferAmount, uint256 tTransferAmount, uint256 tLiquidity) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeWalletsFees(tLiquidity);
emit Transfer(sender, recipient, tTransferAmount);
if(tLiquidity>0) { emit Transfer(sender, address(this), tLiquidity); }
}
function _transferToExcluded(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 tTransferAmount, uint256 tLiquidity) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeWalletsFees(tLiquidity);
emit Transfer(sender, recipient, tTransferAmount);
if(tLiquidity>0) { emit Transfer(sender, address(this), tLiquidity); }
}
function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 tTransferAmount, uint256 tLiquidity) = _getValues(tAmount);
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeWalletsFees(tLiquidity);
emit Transfer(sender, recipient, tTransferAmount);
if(tLiquidity>0) { emit Transfer(sender, address(this), tLiquidity); }
}
function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 tTransferAmount, uint256 tLiquidity) = _getValues(tAmount);
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeWalletsFees(tLiquidity);
emit Transfer(sender, recipient, tTransferAmount);
if(tLiquidity>0) { emit Transfer(sender, address(this), tLiquidity); }
}
function excludeFromTxLimit(address account, bool _value) external onlyOwner
{
_isExemptFromTxLimit[account] = _value;
}
function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256)
{
(uint256 tTransferAmount, uint256 tLiquidity) = _getTValues(tAmount);
(uint256 rAmount, uint256 rTransferAmount) = _getRValues(tAmount, tLiquidity, _getRate());
return (rAmount, rTransferAmount, tTransferAmount, tLiquidity);
}
function _getTValues(uint256 tAmount) private view returns (uint256, uint256) {
uint256 tLiquidity = calculateWalletsFees(tAmount);
uint256 tTransferAmount = tAmount.sub(tLiquidity);
return (tTransferAmount, tLiquidity);
}
function _getRValues(uint256 tAmount, uint256 tLiquidity, uint256 currentRate) private pure returns (uint256, uint256) {
uint256 rAmount = tAmount.mul(currentRate);
uint256 rLiquidity = tLiquidity.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(rLiquidity);
return (rAmount, rTransferAmount);
}
function _getRate() private view returns(uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply.div(tSupply);
}
function _getCurrentSupply() private view returns(uint256, uint256) {
uint256 rSupply = _rTotal;
uint256 tSupply = _tTotal;
for (uint256 i = 0; i < _excluded.length; i++) {
if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal);
rSupply = rSupply.sub(_rOwned[_excluded[i]]);
tSupply = tSupply.sub(_tOwned[_excluded[i]]);
}
if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}
function _takeWalletsFees(uint256 tLiquidity) private {
uint256 currentRate = _getRate();
uint256 rLiquidity = tLiquidity.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity);
if(_isExcluded[address(this)])
_tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity);
}
function calculateWalletsFees(uint256 _amount) private view returns (uint256)
{
return _amount.mul(_lpFee+_marketingFee).div(1000);
}
function removeAllFee() private
{
_lpFee = 0;
_marketingFee = 0;
}
function restoreAllFee() private
{
_lpFee = _previouslpFee;
_marketingFee = _previousMarketingFee;
}
function setSaleFee() private
{
_lpFee = _salelpFee;
_marketingFee = _saleMarketingFee;
}
event updateBuyFee(uint256 totalFee, uint256 timestamp);
function setAllBuyFeePercentages(uint256 lpFee, uint256 marketingFee)
external onlyOwner()
{
_lpFee = lpFee;
_previouslpFee = lpFee;
_marketingFee = marketingFee;
_previousMarketingFee = marketingFee;
uint256 totalFee = _lpFee.add(_marketingFee);
require(totalFee<=150, "Too High Fee");
emit updateBuyFee(totalFee, block.timestamp);
}
event updateSellFee(uint256 totalFee, uint256 timestamp);
function setAllSaleFeePercentages(uint256 lpFee, uint256 marketingFee)
external onlyOwner()
{
_salelpFee = lpFee;
_saleMarketingFee = marketingFee;
uint256 totalFee = lpFee.add(marketingFee);
emit updateSellFee(totalFee, block.timestamp);
}
function setMaxTxAmount(uint256 _mount) external onlyOwner()
{
require(_mount>_tTotal.div(1000), "Too low Txn limit"); // Min 0.1%
_maxTxAmount = _mount;
}
function setNumTokensSellToAddToLiquidity(uint256 __minimumTokensBeforeSwap) external onlyOwner()
{
_minimumTokensBeforeSwap = __minimumTokensBeforeSwap;
}
function setMarketingAddress(address _marketingAddress) external onlyOwner()
{
marketingAddress = payable(_marketingAddress);
}
function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner
{
swapAndLiquifyEnabled = _enabled;
emit SwapAndLiquifyEnabledUpdated(_enabled);
}
//to recieve ETH from uniswapV2Router when swaping
receive() external payable {}
mapping (address => bool) private _isExcludedFromWhale;
uint256 public _walletHoldingMaxLimit = (_tTotal * 2) / 100;
function excludeWalletsFromWhales() private
{
_isExcludedFromWhale[owner()]=true;
_isExcludedFromWhale[address(this)]=true;
_isExcludedFromWhale[address(0)]=true;
_isExcludedFromWhale[uniswapV2Pair]=true;
}
function checkForWhale(address from, address to, uint256 amount)
private view
{
uint256 newBalance = balanceOf(to).add(amount);
if(!_isExcludedFromWhale[from] && !_isExcludedFromWhale[to])
{
require(newBalance <= _walletHoldingMaxLimit, "Exceeding max tokens limit in the wallet");
}
if(from==uniswapV2Pair && !_isExcludedFromWhale[to])
{
require(newBalance <= _walletHoldingMaxLimit, "Exceeding max tokens limit in the wallet");
}
}
function setExcludedFromWhale(address account, bool _enabled) public onlyOwner
{
_isExcludedFromWhale[account] = _enabled;
}
function setWalletMaxHoldingLimit(uint256 _amount) public onlyOwner
{
_walletHoldingMaxLimit = _amount;
require(_walletHoldingMaxLimit>_tTotal.div(1000), "Too less limit");
}
mapping(address => bool) public _isBlacklisted;
event AccountBlacklisted(address _account, bool _value, uint256 timestamp);
function blacklistAddress(address account, bool value) external onlyOwner
{
_isBlacklisted[account] = value;
emit AccountBlacklisted(account, value, block.timestamp);
}
function checkForBlackList(address from, address to) private view
{
require(!_isBlacklisted[from] && !_isBlacklisted[to], 'Blacklisted address');
}
function openTrade() external onlyOwner {
isOpen = true;
swapAndLiquifyEnabled = true;
emit SwapAndLiquifyEnabledUpdated(true);
}
}