Contract Source Code:
File 1 of 1 : June
// SPDX-License-Identifier: Unlicensed
pragma solidity ^0.8.0;
//website: https://www.buyinjune.com/
//twitter: https://twitter.com/buyinjune
/**
* Standard SafeMath, stripped down to just add/sub/mul/div
*/
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) {
// Solidity only automatically asserts when dividing by 0
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;
}
}
/**
* ERC20 standard interface.
*/
interface IERC20 {
function totalSupply() 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);
}
/**
* Allows for contract ownership along with multi-address authorization
*/
abstract contract Auth {
address internal owner;
constructor(address _owner) {
owner = _owner;
}
/**
* Function modifier to require caller to be contract deployer
*/
modifier onlyOwner() {
require(isOwner(msg.sender), "!Owner"); _;
}
/**
* Check if address is owner
*/
function isOwner(address account) public view returns (bool) {
return account == owner;
}
/**
* Transfer ownership to new address. Caller must be deployer. Leaves old deployer authorized
*/
function transferOwnership(address payable adr) public onlyOwner {
owner = adr;
emit OwnershipTransferred(adr);
}
event OwnershipTransferred(address owner);
}
interface IDEXFactory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IDEXRouter {
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 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 June is IERC20, Auth {
using SafeMath for uint256;
address private WETH;
string private constant _name = "June";
string private constant _symbol = "JUNE";
uint8 public constant _decimals = 18;
uint256 private _totalSupply = 1000000000000 * (10 ** _decimals);
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => uint256) private cooldown;
mapping (address => bool) private isFeeExempt;
mapping (address => bool) private isBot;
uint256 public buyFee = 17;
uint256 public sellFee = 17;
uint256 private feeDenominator = 100;
address payable public teamWallet = payable(0x7AA6B1A6B0afD24C6943819881Ee01826bE470b7);
uint256 public swapThresholdAmount = 10000000000 * (10**_decimals);
IDEXRouter public router;
address public pair;
uint256 public launchedAt;
bool private tradingOpen;
bool private buyLimit = true;
uint256 private maxBuy = 10000000001 * (10 ** _decimals);
bool public blacklistEnabled = false;
bool private inSwap;
modifier swapping() { inSwap = true; _; inSwap = false; }
constructor (
address _owner
) Auth(_owner) {
router = IDEXRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
WETH = router.WETH();
pair = IDEXFactory(router.factory()).createPair(WETH, address(this));
approve(address(router), type(uint).max);
IERC20(pair).approve(address(router), type(uint).max);
_allowances[address(this)][address(router)] = type(uint256).max;
isFeeExempt[_owner] = true;
isFeeExempt[teamWallet] = true;
isFeeExempt[address(this)] = true;
isBot[0x6b75d8AF000000e20B7a7DDf000Ba900b4009A80] = true;
_balances[_owner] = _totalSupply;
emit Transfer(address(0), _owner, _totalSupply);
}
receive() external payable { }
function totalSupply() external view override returns (uint256) { return _totalSupply; }
function decimals() external pure override returns (uint8) { return _decimals; }
function symbol() external pure override returns (string memory) { return _symbol; }
function name() external pure override returns (string memory) { return _name; }
function getOwner() external view override returns (address) { return owner; }
function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][spender]; }
function approve(address spender, uint256 amount) public override returns (bool) {
_allowances[msg.sender][spender] = amount;
emit Approval(msg.sender, spender, amount);
return true;
}
function approveMax(address spender) external returns (bool) {
return approve(spender, type(uint256).max);
}
function transfer(address recipient, uint256 amount) external override returns (bool) {
return _transferFrom(msg.sender, recipient, amount);
}
function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
if(_allowances[sender][msg.sender] != type(uint256).max){
_allowances[sender][msg.sender] = _allowances[sender][msg.sender].sub(amount, "Insufficient Allowance");
}
return _transferFrom(sender, recipient, amount);
}
function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {
if (!tradingOpen) {
require (sender == owner || sender == address (this));
return _basicTransfer(sender, recipient, amount);
}
if (blacklistEnabled) {
require (!isBot[sender] && !isBot[recipient], "Bot!");
}
if (buyLimit) {
require (amount<=maxBuy, "Too much sir");
}
if (sender == pair && recipient != address(router) && !isFeeExempt[recipient]) {
require (cooldown[recipient] < block.timestamp);
cooldown[recipient] = block.timestamp + 60 seconds;
if (block.number <= (launchedAt + 1)) {
isBot[recipient] = true;
}
}
if(inSwap){ return _basicTransfer(sender, recipient, amount); }
uint256 contractTokenBalance = balanceOf(address(this));
bool overMinTokenBalance = contractTokenBalance >= swapThresholdAmount;
bool shouldSwapBack = (overMinTokenBalance && recipient==pair && balanceOf(address(this)) > 0);
if(shouldSwapBack){ swapBack(); }
_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
uint256 amountReceived = shouldTakeFee(sender, recipient) ? takeFee(sender, amount) : amount;
_balances[recipient] = _balances[recipient].add(amountReceived);
emit Transfer(sender, recipient, amountReceived);
return true;
}
function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
return true;
}
function shouldTakeFee(address sender, address recipient) internal view returns (bool) {
return ( !(isFeeExempt[sender] || isFeeExempt[recipient]) && (sender == pair || recipient == pair) );
}
function takeFee(address sender, uint256 amount) internal returns (uint256) {
uint256 feeAmount;
if(sender != pair) {
feeAmount = amount.mul(sellFee).div(feeDenominator);
}
else {
feeAmount = amount.mul(buyFee).div(feeDenominator);
}
_balances[address(this)] = _balances[address(this)].add(feeAmount);
emit Transfer(sender, address(this), feeAmount);
return amount.sub(feeAmount);
}
function swapBack() internal swapping {
uint256 contractTokenBalance = balanceOf(address(this));
uint256 amountToSwap;
if (contractTokenBalance >= swapThresholdAmount) {
amountToSwap = swapThresholdAmount;
}
else {
amountToSwap = contractTokenBalance;
}
swapTokensForEth(amountToSwap);
uint256 contractETHBalance = address(this).balance;
payable(teamWallet).transfer(contractETHBalance);
}
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] = WETH;
// make the swap
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
function launch() external onlyOwner {
router.addLiquidityETH{value: address(this).balance}(
address(this),
balanceOf(address(this)),
0, // slippage is unavoidable
0, // slippage is unavoidable
owner,
block.timestamp
);
launchedAt = block.number;
tradingOpen = true;
}
function removeBuyLimit() external onlyOwner {
buyLimit = false;
}
function setBuyFee (uint256 _fee) external onlyOwner {
require(buyFee != 0); //once set to 0, fee can't be increased
buyFee = _fee;
}
function setSellFee (uint256 _fee) external onlyOwner {
require(sellFee != 0); //once set to 0, fee can't be increased
sellFee = _fee;
}
function setTeamWallet(address _teamWallet) external onlyOwner {
teamWallet = payable(_teamWallet);
}
function setIsFeeExempt(address holder, bool exempt) external onlyOwner {
isFeeExempt[holder] = exempt;
}
function setBlacklistEnabled() external onlyOwner {
require (blacklistEnabled == false, "can only be called once");
blacklistEnabled = true;
}
function setBot(address _address, bool toggle) public onlyOwner {
isBot[_address] = toggle;
}
function checkBot(address account) public view returns (bool) {
return isBot[account];
}
function blacklistArray (address[] calldata bots) external onlyOwner {
require (bots.length > 0);
uint i =0;
while (i < bots.length) {
setBot(bots[i], true);
i++;
}
}
function setSwapThresholdAmount (uint256 amount) external onlyOwner {
swapThresholdAmount = _totalSupply.mul(amount).div(1000);
}
function manualSend() external onlyOwner {
uint256 contractETHBalance = address(this).balance;
payable(teamWallet).transfer(contractETHBalance);
}
}