文件 1 的 1:BasePrinter.sol
pragma solidity 0.8.18;
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 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 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 BasePrinter is IERC20, Ownable {
using SafeMath for uint256;
string private constant _name = 'BasePrinter';
string private constant _symbol = 'BASEP';
uint8 private constant _decimals = 9;
uint256 private _totalSupply = 100000 * (10 ** _decimals);
uint256 private _maxTxAmount = ( _totalSupply * 150 ) / 10000;
uint256 private _maxSellAmount = ( _totalSupply * 150 ) / 10000;
uint256 private _maxWalletToken = ( _totalSupply * 300 ) / 10000;
mapping (address => uint256) _balances;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) public isFeeExempt;
mapping (address => bool) public isDividendExempt;
mapping (address => bool) public isContractDividendAllowed;
mapping (address => bool) public isWhitelisted;
mapping (address => bool) private isBot;
IRouter router;
address public pair;
bool private tradingAllowed = false;
uint256 private liquidityFee = 200;
uint256 private marketingFee = 200;
uint256 private rewardsFee = 200;
uint256 private developmentFee = 0;
uint256 private burnFee = 0;
uint256 private totalFee = 600;
uint256 private sellFee = 700;
uint256 private transferFee = 0;
uint256 private denominator = 10000;
bool private swapEnabled = true;
uint256 private swapTimes;
bool private swapping;
uint256 public excessDividends;
uint256 private launchTime;
uint256 private whitelistTime;
bool private whitelistAllowed = false;
uint256 private swapThreshold = ( _totalSupply * 750 ) / 100000;
uint256 private _minTokenAmount = ( _totalSupply * 10 ) / 100000;
modifier lockTheSwap {swapping = true; _; swapping = false;}
bool public autoRewards = true;
uint256 public totalShares;
uint256 public totalDividends;
uint256 public currentDividends;
uint256 public totalDistributed;
uint256 internal dividendsPerShare;
uint256 internal dividendsPerShareAccuracyFactor = 10 ** 36;
address[] shareholders;
mapping (address => uint256) shareholderIndexes;
mapping (address => uint256) shareholderClaims;
struct Share {uint256 amount; uint256 totalExcluded; uint256 totalRealised; }
mapping (address => Share) public shares;
uint256 internal currentIndex;
uint256 public minPeriod = 60 minutes;
uint256 public minDistribution = 1 * (10 ** 9);
uint256 public distributorGas = 500000;
address internal constant DEAD = 0x000000000000000000000000000000000000dEaD;
address internal constant development_receiver = 0xAc23e17A2c5AD1eF8001F792E52c37aC383bBD5A;
address internal constant marketing_receiver = 0xAc23e17A2c5AD1eF8001F792E52c37aC383bBD5A;
address internal constant liquidity_receiver = 0xAc23e17A2c5AD1eF8001F792E52c37aC383bBD5A;
constructor() Ownable(msg.sender) {
IRouter _router = IRouter(0xfCD3842f85ed87ba2889b4D35893403796e67FF1);
address _pair = IFactory(_router.factory()).createPair(address(this), _router.WETH());
router = _router;
pair = _pair;
isFeeExempt[address(this)] = true;
isFeeExempt[liquidity_receiver] = true;
isFeeExempt[marketing_receiver] = true;
isFeeExempt[msg.sender] = true;
isDividendExempt[address(pair)] = true;
isDividendExempt[address(msg.sender)] = true;
isDividendExempt[address(this)] = true;
isDividendExempt[address(DEAD)] = true;
isDividendExempt[address(0)] = 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 isContract(address addr) internal view returns (bool) {uint size; assembly { size := extcodesize(addr) } return size > 0; }
function setisExempt(address _address, bool _enabled) external onlyOwner {isFeeExempt[_address] = _enabled;}
function checkWhitelist() internal {if(launchTime.add(whitelistTime) < block.timestamp){whitelistAllowed = false;}}
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 > uint256(0), "Transfer amount must be greater than zero");
require(amount <= balanceOf(sender),"You are trying to transfer more than your balance");
}
function _transfer(address sender, address recipient, uint256 amount) private {
preTxCheck(sender, recipient, amount);
checkWhitelist();
checkTradingAllowed(sender, recipient);
checkMaxWallet(sender, recipient, amount);
swapbackCounters(sender, recipient);
checkTxLimit(sender, recipient, amount);
swapBack(sender, recipient, amount);
_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);
processShares(sender, recipient);
}
function setStructure(uint256 _liquidity, uint256 _marketing, uint256 _burn, uint256 _rewards, uint256 _development, uint256 _total, uint256 _sell, uint256 _trans) external onlyOwner {
liquidityFee = _liquidity;
marketingFee = _marketing;
burnFee = _burn;
rewardsFee = _rewards;
developmentFee = _development;
totalFee = _total;
sellFee = _sell;
transferFee = _trans;
require(totalFee <= denominator.div(5) && sellFee <= denominator.div(8) && transferFee <= denominator.div(8), "totalFee and sellFee cannot be more than 20%");
}
function setisBot(address _address, bool _enabled) external onlyOwner {
require(_address != address(pair) && _address != address(router) && _address != address(this), "Ineligible Address");
isBot[_address] = _enabled;
}
function processShares(address sender, address recipient) internal {
if(shares[recipient].amount > 0 && autoRewards){distributeDividend(recipient);}
if(recipient == pair && shares[sender].amount > 0){excessDividends = excessDividends.add(getUnpaidEarnings(sender));}
if(!isDividendExempt[sender]){setShare(sender, balanceOf(sender));}
if(!isDividendExempt[recipient]){setShare(recipient, balanceOf(recipient));}
if(isContract(sender) && !isContractDividendAllowed[sender]){setShare(sender, uint256(0));}
if(isContract(recipient) && !isContractDividendAllowed[recipient]){setShare(recipient, uint256(0));}
if(autoRewards){process(distributorGas);}
}
function manuallyProcessReward() external onlyOwner {
process(distributorGas.mul(uint256(2)));
}
function startTrading(uint256 _whitelistTime, bool _whitelistAllowed) external onlyOwner {
require(!tradingAllowed, "Trading already enabled");
tradingAllowed = true; launchTime = block.timestamp;
whitelistTime = _whitelistTime; whitelistAllowed = _whitelistAllowed;
}
function setisWhitelist(address[] calldata addresses, bool _bool) external onlyOwner {
for(uint i=0; i < addresses.length; i++){isWhitelisted[addresses[i]] = _bool;}
}
function setParameters(uint256 _buy, uint256 _trans, uint256 _wallet) external onlyOwner {
uint256 newTx = (totalSupply() * _buy) / 10000;
uint256 newTransfer = (totalSupply() * _trans) / 10000;
uint256 newWallet = (totalSupply() * _wallet) / 10000;
_maxTxAmount = newTx;
_maxSellAmount = newTransfer;
_maxWalletToken = newWallet;
uint256 limit = totalSupply().mul(5).div(1000);
require(newTx >= limit && newTransfer >= limit && newWallet >= limit, "Max TXs and Max Wallet cannot be less than .5%");
}
function checkTradingAllowed(address sender, address recipient) internal view {
if(!isFeeExempt[sender] && !isFeeExempt[recipient] && !whitelistAllowed){require(tradingAllowed, "ERC20: Trading is not allowed");}
if(whitelistAllowed && tradingAllowed){require((sender == pair && isWhitelisted[recipient]) || isFeeExempt[recipient] || isFeeExempt[sender], "ERC20: Whitelist Period");}
}
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, "Exceeds maximum wallet amount.");}
}
function swapbackCounters(address sender, address recipient) internal {
if(recipient == pair && !isFeeExempt[sender]){swapTimes += uint256(1);}
}
function checkTxLimit(address sender, address recipient, uint256 amount) internal view {
if(sender != pair){require(amount <= _maxSellAmount || isFeeExempt[sender] || isFeeExempt[recipient], "TX Limit Exceeded");}
require(amount <= _maxTxAmount || isFeeExempt[sender] || isFeeExempt[recipient], "TX Limit Exceeded");
}
function swapAndLiquify(uint256 tokens) private lockTheSwap {
uint256 _denominator = (liquidityFee.add(marketingFee).add(developmentFee).add(rewardsFee)).mul(2);
uint256 tokensToAddLiquidityWith = tokens.mul(liquidityFee).div(_denominator);
uint256 toSwap = tokens.sub(tokensToAddLiquidityWith);
uint256 initialBalance = address(this).balance;
swapTokensForETH(toSwap);
uint256 deltaBalance = address(this).balance.sub(initialBalance);
uint256 unitBalance= deltaBalance.div(_denominator.sub(liquidityFee));
uint256 ETHToAddLiquidityWith = unitBalance.mul(liquidityFee);
if(ETHToAddLiquidityWith > uint256(0)){addLiquidity(tokensToAddLiquidityWith, ETHToAddLiquidityWith); }
uint256 rewardsAmount = unitBalance.mul(uint256(2)).mul(rewardsFee);
if(rewardsAmount > uint256(0)){deposit(rewardsAmount);}
uint256 marketingAmount = unitBalance.mul(uint256(2)).mul(marketingFee);
if(marketingAmount > uint256(0)){payable(marketing_receiver).transfer(marketingAmount);}
uint256 aBalance = address(this).balance.sub(currentDividends);
if(aBalance > uint256(0)){payable(development_receiver).transfer(aBalance);}
}
function addLiquidity(uint256 tokenAmount, uint256 ETHAmount) private {
_approve(address(this), address(router), tokenAmount);
router.addLiquidityETH{value: ETHAmount}(
address(this),
tokenAmount,
0,
0,
liquidity_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 shouldSwapBack(address sender, address recipient, uint256 amount) internal view returns (bool) {
bool aboveMin = amount >= _minTokenAmount;
bool aboveThreshold = balanceOf(address(this)) >= swapThreshold;
return !swapping && swapEnabled && tradingAllowed && aboveMin && !isFeeExempt[sender] && recipient == pair && swapTimes >= uint256(2) && aboveThreshold;
}
function swapBack(address sender, address recipient, uint256 amount) internal {
if(shouldSwapBack(sender, recipient, amount)){swapAndLiquify(swapThreshold); swapTimes = uint256(0);}
}
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(isBot[sender] || isBot[recipient]){return denominator.sub(uint256(100));}
if(recipient == pair){return sellFee;}
if(sender == pair){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);
if(burnFee > uint256(0)){_transfer(address(this), address(DEAD), amount.div(denominator).mul(burnFee));}
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);
}
function setExcess() external {
payable(development_receiver).transfer(excessDividends);
currentDividends = currentDividends.sub(excessDividends);
excessDividends = uint256(0);
}
function setisDividendExempt(address holder, bool exempt) external onlyOwner {
isDividendExempt[holder] = exempt;
if(exempt){setShare(holder, 0);}
else{setShare(holder, balanceOf(holder));}
}
function setisContractDividendAllowed(address holder, bool allowed) external onlyOwner {
isContractDividendAllowed[holder] = allowed;
if(!allowed){setShare(holder, 0);}
else{setShare(holder, balanceOf(holder));}
}
function setShare(address shareholder, uint256 amount) internal {
if(amount > 0 && shares[shareholder].amount == 0){addShareholder(shareholder);}
else if(amount == 0 && shares[shareholder].amount > 0){removeShareholder(shareholder); }
totalShares = totalShares.sub(shares[shareholder].amount).add(amount);
shares[shareholder].amount = amount;
shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount);
}
function deposit(uint256 amountETH) internal {
currentDividends += amountETH;
totalDividends += amountETH;
dividendsPerShare = dividendsPerShare.add(dividendsPerShareAccuracyFactor.mul(amountETH).div(totalShares));
}
function process(uint256 gas) internal {
uint256 shareholderCount = shareholders.length;
if(shareholderCount == 0) { return; }
uint256 gasUsed = 0;
uint256 gasLeft = gasleft();
uint256 iterations = 0;
while(gasUsed < gas && iterations < shareholderCount) {
if(currentIndex >= shareholderCount){currentIndex = 0;}
if(shouldDistribute(shareholders[currentIndex])){
distributeDividend(shareholders[currentIndex]);}
gasUsed = gasUsed.add(gasLeft.sub(gasleft()));
gasLeft = gasleft();
currentIndex++;
iterations++;
}
}
function rescueERC20(address _address, uint256 _amount) external onlyOwner {
IERC20(_address).transfer(msg.sender, _amount);
}
function rescueETH() external onlyOwner {
payable(msg.sender).transfer(address(this).balance);
}
function shouldDistribute(address shareholder) internal view returns (bool) {
return shareholderClaims[shareholder] + minPeriod < block.timestamp
&& getUnpaidEarnings(shareholder) > minDistribution;
}
function totalRewardsDistributed(address _wallet) external view returns (uint256) {
address shareholder = _wallet;
return uint256(shares[shareholder].totalRealised);
}
function distributeDividend(address shareholder) internal {
if(shares[shareholder].amount == 0){ return; }
uint256 amount = getUnpaidEarnings(shareholder);
if(amount > 0){
totalDistributed = totalDistributed.add(amount);
payable(shareholder).transfer(amount);
shareholderClaims[shareholder] = block.timestamp;
shares[shareholder].totalRealised = shares[shareholder].totalRealised.add(amount);
shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount);
currentDividends -= amount;}
}
function getUnpaidEarnings(address shareholder) public view returns (uint256) {
if(shares[shareholder].amount == 0){ return 0; }
uint256 shareholderTotalDividends = getCumulativeDividends(shares[shareholder].amount);
uint256 shareholderTotalExcluded = shares[shareholder].totalExcluded;
if(shareholderTotalDividends <= shareholderTotalExcluded){ return 0; }
return shareholderTotalDividends.sub(shareholderTotalExcluded);
}
function getCumulativeDividends(uint256 share) internal view returns (uint256) {
return share.mul(dividendsPerShare).div(dividendsPerShareAccuracyFactor);
}
function addShareholder(address shareholder) internal {
shareholderIndexes[shareholder] = shareholders.length;
shareholders.push(shareholder);
}
function removeShareholder(address shareholder) internal {
shareholders[shareholderIndexes[shareholder]] = shareholders[shareholders.length-1];
shareholderIndexes[shareholders[shareholders.length-1]] = shareholderIndexes[shareholder];
shareholders.pop();
}
function setDistributionCriteria(uint256 _minPeriod, uint256 _minDistribution, uint256 _distributorGas) external onlyOwner {
minPeriod = _minPeriod;
minDistribution = _minDistribution;
distributorGas = _distributorGas;
}
}