文件 1 的 1:ArbiShiba.sol
pragma solidity ^0.7.4;
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;
return c;
}
}
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);
}
abstract contract Auth {
address internal owner;
mapping (address => bool) internal authorizations;
constructor(address _owner) {
owner = _owner;
authorizations[_owner] = true;
}
modifier onlyOwner() {
require(isOwner(msg.sender), "!OWNER"); _;
}
modifier authorized() {
require(isAuthorized(msg.sender), "!AUTHORIZED"); _;
}
function authorize(address adr) public onlyOwner {
authorizations[adr] = true;
}
function unauthorize(address adr) public onlyOwner {
authorizations[adr] = false;
}
function isOwner(address account) public view returns (bool) {
return account == owner;
}
function isAuthorized(address adr) public view returns (bool) {
return authorizations[adr];
}
function transferOwnership(address payable adr) public onlyOwner {
owner = adr;
authorizations[adr] = true;
emit OwnershipTransferred(adr);
}
event OwnershipTransferred(address owner);
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IUniswapV2Router {
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;
}
interface IDividendDistributor {
function setDistributionCriteria(uint256 _minPeriod, uint256 _minDistribution) external;
function setShare(address shareholder, uint256 amount) external;
function deposit() external payable;
function process(uint256 gas) external;
}
contract DividendDistributor is IDividendDistributor {
using SafeMath for uint256;
address _token;
struct Share {
uint256 amount;
uint256 totalExcluded;
uint256 totalRealised;
}
address WETH = 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1;
IUniswapV2Router router;
address[] shareholders;
mapping (address => uint256) shareholderIndexes;
mapping (address => uint256) shareholderClaims;
mapping (address => Share) public shares;
uint256 public totalShares;
uint256 public totalDividends;
uint256 public totalDistributed;
uint256 public dividendsPerShare;
uint256 public dividendsPerShareAccuracyFactor = 10 ** 36;
uint256 public minPeriod = 1 hours;
uint256 public minDistribution = 1 * (10 ** 18) / (100);
uint256 currentIndex;
bool initialized;
modifier initialization() {
require(!initialized);
_;
initialized = true;
}
modifier onlyToken() {
require(msg.sender == _token); _;
}
constructor (address _router) {
router = _router != address(0)
? IUniswapV2Router(_router)
: IUniswapV2Router(0x1b02dA8Cb0d097eB8D57A175b88c7D8b47997506);
_token = msg.sender;
}
function setDistributionCriteria(uint256 _minPeriod, uint256 _minDistribution) external override onlyToken {
minPeriod = _minPeriod;
minDistribution = _minDistribution;
}
function setShare(address shareholder, uint256 amount) external override onlyToken {
if(shares[shareholder].amount > 0){
distributeDividend(shareholder);
}
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() external payable override onlyToken {
totalDividends = totalDividends.add(msg.value);
dividendsPerShare = dividendsPerShare.add(dividendsPerShareAccuracyFactor.mul(msg.value).div(totalShares));
}
function process(uint256 gas) external override onlyToken {
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 shouldDistribute(address shareholder) internal view returns (bool) {
return shareholderClaims[shareholder] + minPeriod < block.timestamp
&& getUnpaidEarnings(shareholder) > minDistribution;
}
function TimeLeftToDistribute(address shareholder) public view returns (uint256) {
uint256 timeleft;
if (shareholderClaims[shareholder] + minPeriod > block.timestamp) {
timeleft = shareholderClaims[shareholder] + minPeriod - block.timestamp;
} else {
timeleft = 0;
}
return timeleft;
}
function distributeDividend(address shareholder) public payable {
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);
}
}
function claimDividend() external {
distributeDividend(msg.sender);
}
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();
}
}
contract ArbiShiba is IERC20, Auth {
using SafeMath for uint256;
address WETH = 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1;
address DEAD = 0x000000000000000000000000000000000000dEaD;
address ZERO = 0x0000000000000000000000000000000000000000;
string constant _name = "ArbiShiba";
string constant _symbol = "ArbShib";
uint8 constant _decimals = 18;
uint256 _totalSupply = 100000000 * (10 ** _decimals);
uint256 public _maxBuyTxAmount = 500000 * (10 ** _decimals);
uint256 public _maxSellTxAmount = 500000 * (10 ** _decimals);
uint256 public _maxWalletAmount = 2000000 * (10 ** _decimals);
mapping (address => uint256) _balances;
mapping (address => mapping (address => uint256)) _allowances;
mapping (address => bool) public automatedMarketMakerPairs;
mapping (address => bool) public isFeeExempt;
mapping (address => bool) public isMaxWalletExempt;
mapping (address => bool) public isTxLimitExempt;
mapping (address => bool) public isDividendExempt;
uint256 public reflectionFee = 3;
uint256 public marketingFee = 2;
uint256 public liquidityFee = 1;
uint256 public totalFee = reflectionFee.add(marketingFee).add(liquidityFee);
address public marketingFeeReceiver;
address public liquidityFeeReceiver;
IUniswapV2Router public router;
address public pair;
event SwapETHForTokens(
uint256 amountIn,
address[] path
);
event SwapTokensForETH(
uint256 amountIn,
address[] path
);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiqudity
);
event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
DividendDistributor public distributor;
uint256 distributorGas = 500000;
bool public swapEnabled = true;
uint256 public swapThreshold = _totalSupply / 20000;
bool inSwap;
modifier swapping() { inSwap = true; _; inSwap = false; }
bool public tradingOn = false;
constructor () Auth(msg.sender) {
router = IUniswapV2Router(0x1b02dA8Cb0d097eB8D57A175b88c7D8b47997506);
_allowances[address(this)][address(router)] = uint256(-1);
pair = IUniswapV2Factory(router.factory()).createPair(WETH, address(this));
distributor = new DividendDistributor(address(router));
isFeeExempt[msg.sender] = true;
isFeeExempt[address(this)] = true;
isFeeExempt[DEAD] = true;
isFeeExempt[marketingFeeReceiver] = true;
isTxLimitExempt[msg.sender] = true;
isTxLimitExempt[address(this)] = true;
isTxLimitExempt[DEAD] = true;
isTxLimitExempt[marketingFeeReceiver] = true;
isMaxWalletExempt[msg.sender] = true;
isMaxWalletExempt[pair] = true;
isMaxWalletExempt[address(this)] = true;
isMaxWalletExempt[DEAD] = true;
isMaxWalletExempt[marketingFeeReceiver] = true;
isDividendExempt[pair] = true;
isDividendExempt[address(this)] = true;
isDividendExempt[DEAD] = true;
isDividendExempt[marketingFeeReceiver] = true;
marketingFeeReceiver = 0xD1E3f5133e5eD6a45eb119FA901a6908A08fF642;
liquidityFeeReceiver = msg.sender;
automatedMarketMakerPairs[pair] = true;
_balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
}
receive() external payable { }
function getUnpaidEarnings(address shareholder) public view returns (uint256) {
return distributor.getUnpaidEarnings(shareholder);
}
function claimDividend() public {
distributor.claimDividend();
}
function TimeLeftToDistribute(address shareholder) public view returns (uint256) {
return distributor.TimeLeftToDistribute(shareholder);
}
function totalShares() public view returns (uint256) {
return distributor.totalShares();
}
function totalDividends() public view returns (uint256) {
return distributor.totalDividends();
}
function totalDistributed() public view returns (uint256) {
return distributor.totalDistributed();
}
function dividendsPerShare() public view returns (uint256) {
return distributor.dividendsPerShare();
}
function minDistribution() public view returns (uint256) {
return distributor.minDistribution();
}
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, uint256(-1));
}
function transfer(address recipient, uint256 amount) external override returns (bool) {
return _transferFrom(msg.sender, recipient, amount);
}
function enableTrading() public onlyOwner {
if (!tradingOn) {
tradingOn = true;
}
}
function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
if(_allowances[sender][msg.sender] != uint256(-1)){
_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 (sender != owner && recipient != owner) {
require(tradingOn, "Trading is not turned on yet");
}
if(inSwap){ return _basicTransfer(sender, recipient, amount); }
checkTxLimit(sender, recipient, amount);
if(shouldSwapBack()){ swapBack(); }
_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
uint256 amountReceived = shouldTakeFee(sender) ? takeFee(sender, amount) : amount;
_balances[recipient] = _balances[recipient].add(amountReceived);
if(!isDividendExempt[sender]){ try distributor.setShare(sender, _balances[sender]) {} catch {} }
if(!isDividendExempt[recipient]){ try distributor.setShare(recipient, _balances[recipient]) {} catch {} }
try distributor.process(distributorGas) {} catch {}
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);
checkWalletLimit(recipient);
emit Transfer(sender, recipient, amount);
return true;
}
function checkTxLimit(address sender, address recipient, uint256 amount) internal view {
if (automatedMarketMakerPairs[sender]) {
if (!isTxLimitExempt[recipient]) {
require(amount <= _maxBuyTxAmount, "TX Limit Exceeded");
}
if (!isMaxWalletExempt[recipient]) {
require((_balances[recipient] + amount) <= _maxWalletAmount, "Wallet Amount Limit Exceeded");
}
} else if (automatedMarketMakerPairs[recipient]) {
if (!isTxLimitExempt[sender]) {
require(amount <= _maxSellTxAmount);
}
}
}
function checkWalletLimit(address recipient) internal view {
require(_balances[recipient] <= _maxWalletAmount || isMaxWalletExempt[recipient], "Wallet Amount Limit Exceeded");
}
function shouldTakeFee(address sender) internal view returns (bool) {
return !isFeeExempt[sender];
}
function takeFee(address sender, uint256 amount) internal returns (uint256) {
uint256 feeAmount = amount.mul(totalFee).div(100);
_balances[address(this)] = _balances[address(this)].add(feeAmount);
emit Transfer(sender, address(this), feeAmount);
return amount.sub(feeAmount);
}
function shouldSwapBack() internal view returns (bool) {
return msg.sender != pair
&& !inSwap
&& swapEnabled
&& _balances[address(this)] >= swapThreshold;
}
function swapBack() internal swapping {
uint256 amountToSwap = _balances[address(this)];
uint256 amountReflection = amountToSwap.mul(reflectionFee).div(totalFee);
uint256 amountMarketing = amountToSwap.mul(marketingFee).div(totalFee);
uint256 amountLiquidity = amountToSwap.mul(liquidityFee).div(totalFee);
swapAndSendToMarketingFee(amountMarketing);
swapAndSendToRef(amountReflection);
swapAndLiquify(amountLiquidity);
}
function swapAndSendToMarketingFee(uint256 tokens) private {
uint256 initialBNBBalance = address(this).balance;
swapTokensForEth(tokens);
uint256 newBNBBalance = address(this).balance.sub(initialBNBBalance);
payable(marketingFeeReceiver).transfer(newBNBBalance);
}
function swapAndSendToRef(uint256 tokens) private {
uint256 initialBNBBalance = address(this).balance;
swapTokensForEth(tokens);
uint256 newBNBBalance = address(this).balance.sub(initialBNBBalance);
try distributor.deposit{value: newBNBBalance}() {} catch {}
}
function swapAndLiquify(uint256 tokens) private {
uint256 half = tokens.div(2);
uint256 otherhalf = tokens.sub(half);
uint256 initialBalance = address(this).balance;
swapTokensForEth(half);
uint256 newBalance = address(this).balance.sub(initialBalance);
addLiquidity(otherhalf, newBalance);
emit SwapAndLiquify(half, newBalance, otherhalf);
}
function swapTokensForEth(uint256 tokenAmount) private {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = router.WETH();
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
emit SwapTokensForETH(tokenAmount, path);
}
function addLiquidity(uint256 tokenAmount, uint256 bnbAmount) private {
router.addLiquidityETH{value: bnbAmount}(
address(this),
tokenAmount,
0,
0,
liquidityFeeReceiver,
block.timestamp
);
}
function setTxLimits(uint256 maxBuyTxAmount, uint256 maxSellTxAmount) external authorized {
require(maxBuyTxAmount >= 500000, "Maxbuy cant be below 0.5%");
require(maxSellTxAmount >= 500000, "Maxsell cant be below 0.5%");
_maxBuyTxAmount = maxBuyTxAmount * (10 ** _decimals);
_maxSellTxAmount = maxSellTxAmount * (10 ** _decimals);
}
function setWalletAmountLimit(uint256 amount) external authorized {
_maxWalletAmount = amount * (10 ** _decimals);
}
function setIsDividendExempt(address holder, bool exempt) external authorized {
require(holder != address(this) && holder != pair);
isDividendExempt[holder] = exempt;
if(exempt){
distributor.setShare(holder, 0);
}else{
distributor.setShare(holder, _balances[holder]);
}
}
function setIsFeeExempt(address holder, bool exempt) external authorized {
isFeeExempt[holder] = exempt;
}
function setIsTxLimitExempt(address holder, bool exempt) external authorized {
isTxLimitExempt[holder] = exempt;
}
function setIsMaxWalletExempt(address holder, bool exempt) external authorized {
isMaxWalletExempt[holder] = exempt;
}
function setFees(uint256 _reflectionFee, uint256 _marketingFee, uint256 _liquidityFee) external authorized {
reflectionFee = _reflectionFee;
marketingFee = _marketingFee;
liquidityFee = _liquidityFee;
totalFee = _reflectionFee.add(_marketingFee).add(_liquidityFee);
}
function setMarketingFeeReceiver(address _marketingFeeReceiver) external authorized {
marketingFeeReceiver = _marketingFeeReceiver;
}
function setSwapBackSettings(bool _enabled, uint256 _amount) external authorized {
swapEnabled = _enabled;
swapThreshold = _amount * (10 ** _decimals);
}
function setDistributionCriteria(uint256 _minPeriod, uint256 _minDistribution) external authorized {
distributor.setDistributionCriteria(_minPeriod, _minDistribution);
}
function setDistributorSettings(uint256 gas) external authorized {
require(gas < 750000);
distributorGas = gas;
}
function getCirculatingSupply() public view returns (uint256) {
return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(ZERO));
}
function setAutomatedMarketMakerPair(address _pair, bool value) public onlyOwner {
require(_pair != pair, "The PancakeSwap pair cannot be removed from automatedMarketMakerPairs");
_setAutomatedMarketMakerPair(_pair, value);
isMaxWalletExempt[pair] = true;
isDividendExempt[pair] = true;
}
function _setAutomatedMarketMakerPair(address _pair, bool value) private {
require(automatedMarketMakerPairs[_pair] != value, "Automated market maker pair is already set to that value");
automatedMarketMakerPairs[_pair] = value;
if(value) {
isDividendExempt[_pair] = true;
}
emit SetAutomatedMarketMakerPair(_pair, value);
}
function setpair(address _pair) public onlyOwner {
automatedMarketMakerPairs[_pair] = true;
isMaxWalletExempt[_pair] = true;
isDividendExempt[_pair] = true;
pair = _pair;
}
}