文件 1 的 1:BankOfX.sol
pragma solidity 0.8.13;
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;
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 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;
}
interface IDividendDistributor {
function setRewardToken(address newRewardToken) external;
function setDistributionCriteria(uint256 _minPeriod, uint256 _minDistribution) external;
function setShare(address shareholder, uint256 amount) external;
function deposit(uint256 amount) external;
function claimDividend(address shareholder) external;
function getDividendsClaimedOf (address shareholder) external returns (uint256);
function process(uint256 gas) external;
}
contract DividendDistributor is IDividendDistributor {
using SafeMath for uint256;
address public _token;
address public _owner;
address public RewardToken;
struct Share {
uint256 amount;
uint256 totalExcluded;
uint256 totalClaimed;
}
address[] shareholders;
mapping (address => uint256) shareholderIndexes;
mapping (address => uint256) shareholderClaims;
mapping (address => Share) public shares;
uint256 public totalShares;
uint256 public totalDividends;
uint256 public totalClaimed;
uint256 public dividendsPerShare;
uint256 private dividendsPerShareAccuracyFactor = 10 ** 36;
uint256 public minPeriod;
uint256 public minDistribution;
uint256 currentIndex;
bool initialized;
modifier initialization() {
require(!initialized);
_;
initialized = true;
}
modifier onlyToken() {
require(msg.sender == _token); _;
}
modifier onlyOwner() {
require(msg.sender == _owner); _;
}
constructor (address owner) {
_token = msg.sender;
_owner = owner;
}
receive() external payable { }
function setRewardToken(address newRewardToken) external override onlyToken {
RewardToken = newRewardToken;
}
function setDistributionCriteria(uint256 newMinPeriod, uint256 newMinDistribution) external override onlyToken {
minPeriod = newMinPeriod;
minDistribution = newMinDistribution;
}
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(uint256 amount) external override onlyToken {
if (amount > 0) {
totalDividends = totalDividends.add(amount);
dividendsPerShare = dividendsPerShare.add(dividendsPerShareAccuracyFactor.mul(amount).div(totalShares));
}
}
function process(uint256 gas) external override onlyToken {
uint256 shareholderCount = shareholders.length;
if(shareholderCount == 0) { return; }
uint256 iterations = 0;
uint256 gasUsed = 0;
uint256 gasLeft = gasleft();
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 distributeDividend(address shareholder) internal {
if(shares[shareholder].amount == 0){ return; }
uint256 amount = getClaimableDividendOf(shareholder);
if(amount > 0){
totalClaimed = totalClaimed.add(amount);
shares[shareholder].totalClaimed = shares[shareholder].totalClaimed.add(amount);
shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount);
IERC20(RewardToken).transfer(shareholder, amount);
}
}
function claimDividend(address shareholder) external override onlyToken {
distributeDividend(shareholder);
}
function getClaimableDividendOf(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 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 manualSend(uint256 amount, address holder) external onlyOwner {
uint256 contractETHBalance = address(this).balance;
payable(holder).transfer(amount > 0 ? amount : contractETHBalance);
}
function getDividendsClaimedOf (address shareholder) external view returns (uint256) {
require (shares[shareholder].amount > 0, "You're not a BANKX shareholder!");
return shares[shareholder].totalClaimed;
}
}
contract BankOfX is IERC20, Auth {
using SafeMath for uint256;
address public RewardToken;
string private constant _name = "BANK OF X";
string private constant _symbol = "BANKX";
uint8 private constant _decimals = 9;
uint256 private _totalSupply = 10000000 * (10 ** _decimals);
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
mapping (address => uint256) private cooldown;
address private WETH;
address DEAD = 0x000000000000000000000000000000000000dEaD;
address ZERO = 0x0000000000000000000000000000000000000000;
bool public limitsInEffect = true;
bool public antiBot = true;
mapping (address => bool) private bots;
mapping (address => bool) public isFeeExempt;
mapping (address => bool) public isTxLimitExempt;
mapping (address => bool) public isDividendExempt;
uint256 public launchedAt;
uint256 public devFeeBuy = 10;
uint256 public rewardFeeBuy = 40;
uint256 public lpFeeBuy = 20;
uint256 public marketingFeeBuy = 30;
uint256 public rewardFeeSell = 40;
uint256 public lpFeeSell = 20;
uint256 public marketingFeeSell = 30;
uint256 public devFeeSell = 10;
uint public feeDenominator = 1000;
uint256 public totalFeeBuy = devFeeBuy.add(lpFeeBuy).add(rewardFeeBuy).add(marketingFeeBuy);
uint256 public totalFeeSell = devFeeSell.add(lpFeeSell).add(rewardFeeSell).add(marketingFeeSell);
IDEXRouter public router;
address public pair;
DividendDistributor public distributor;
uint256 public distributorGas = 0;
address payable public marketingWallet = payable(0xcB08Bc1287aCc495DFC981dD2F24e255B8E0b5bE);
address payable public devWallet = payable(0xDebe14e19a1D351654e7916a3Cf7ced0ffFFFAb8);
bool inSwapAndLiquify;
bool public swapAndLiquifyEnabled = true;
bool public tradingActive = false;
modifier lockTheSwap {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}
uint256 public maxTx = _totalSupply.div(200);
uint256 public maxWallet = _totalSupply.div(50);
uint256 public swapThreshold = _totalSupply.div(250);
constructor (
address _owner
) Auth(_owner) {
router = IDEXRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
WETH = router.WETH();
pair = IDEXFactory(router.factory()).createPair(WETH, address(this));
_allowances[address(this)][address(router)] = type(uint256).max;
distributor = new DividendDistributor(_owner);
isFeeExempt[_owner] = true;
isFeeExempt[marketingWallet] = true;
isFeeExempt[devWallet] = true;
isDividendExempt[pair] = true;
isDividendExempt[address(this)] = true;
isDividendExempt[DEAD] = true;
isTxLimitExempt[_owner] = true;
isTxLimitExempt[pair] = true;
isTxLimitExempt[DEAD] = true;
_balances[_owner] = _totalSupply;
emit Transfer(address(0), _owner, _totalSupply);
}
receive() external payable { }
function _updateRewardToken(address newRewardToken) internal {
distributor.setRewardToken(newRewardToken);
}
function updateRewardToken(address newRewardToken) external onlyOwner {
RewardToken = newRewardToken;
_updateRewardToken(newRewardToken);
}
function changeDistributor(DividendDistributor newDistributor) external onlyOwner {
distributor = newDistributor;
}
function changeFees(uint256 newDevFeeBuy, uint256 newDevFeeSell, uint256 newRewardFeeBuy, uint256 newRewardFeeSell, uint256 newLpFeeBuy, uint256 newLpFeeSell,
uint256 newMarketingFeeBuy, uint256 newMarketingFeeSell) external onlyOwner {
rewardFeeBuy = newRewardFeeBuy;
lpFeeBuy = newLpFeeBuy;
marketingFeeBuy = newMarketingFeeBuy;
devFeeBuy = newDevFeeBuy;
rewardFeeSell = newRewardFeeSell;
lpFeeSell = newLpFeeSell;
marketingFeeSell = newMarketingFeeSell;
devFeeSell = newDevFeeSell;
totalFeeBuy = devFeeBuy.add(lpFeeBuy).add(rewardFeeBuy).add(marketingFeeBuy);
totalFeeSell = devFeeSell.add(lpFeeSell).add(rewardFeeSell).add(marketingFeeSell);
require(totalFeeBuy <= 10, "don't be greedy dev");
require(totalFeeSell <= 10, "don't be greedy dev");
}
function changeMaxTx(uint256 newMaxTx) external onlyOwner {
maxTx = newMaxTx;
}
function changeMaxWallet(uint256 newMaxWallet) external onlyOwner {
maxWallet = newMaxWallet;
}
function removeLimits(bool) external onlyOwner {
limitsInEffect = false;
}
function changeIsFeeExempt(address holder, bool exempt) external onlyOwner {
isFeeExempt[holder] = exempt;
}
function changeIsTxLimitExempt(address holder, bool exempt) external onlyOwner {
isTxLimitExempt[holder] = exempt;
}
function setMarketingWallet(address payable newMarketingWallet) external onlyOwner {
marketingWallet = payable(newMarketingWallet);
}
function setDevWallet(address payable newDevWallet) external onlyOwner {
devWallet = payable(newDevWallet);
}
function setOwnerWallet(address payable newOwnerWallet) external onlyOwner {
owner = newOwnerWallet;
}
function changeSwapBackSettings(bool enableSwapBack, uint256 newSwapBackLimit) external onlyOwner {
swapAndLiquifyEnabled = enableSwapBack;
swapThreshold = newSwapBackLimit;
}
function setDistributionCriteria(uint256 newMinPeriod, uint256 newMinDistribution) external onlyOwner {
distributor.setDistributionCriteria(newMinPeriod, newMinDistribution);
}
function setBots(address[] memory bots_) external onlyOwner {
for (uint i = 0; i < bots_.length; i++) {
bots[bots_[i]] = true;
}
}
function delBot(address notbot) external onlyOwner {
bots[notbot] = false;
}
function _setIsDividendExempt(address holder, bool exempt) internal {
require(holder != address(this) && holder != pair);
isDividendExempt[holder] = exempt;
if(exempt){
distributor.setShare(holder, 0);
}else{
distributor.setShare(holder, _balances[holder]);
}
}
function setIsDividendExempt(address holder, bool exempt) external onlyOwner {
_setIsDividendExempt(holder, exempt);
}
function changeDistributorGas(uint256 _distributorGas) external onlyOwner {
distributorGas = _distributorGas;
}
function getCirculatingSupply() public view returns (uint256) {
return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(ZERO));
}
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 _transfer(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 _transfer(sender, recipient, amount);
}
function _transfer(address sender, address recipient, uint256 amount) internal returns (bool) {
if (sender!= owner && recipient!= owner) require(tradingActive, "Trading not yet active.");
require(!bots[sender] && !bots[recipient]);
if(inSwapAndLiquify){ return _basicTransfer(sender, recipient, amount); }
require(amount <= maxTx || isTxLimitExempt[sender], "tx");
if(!isTxLimitExempt[recipient] && antiBot)
{
require(_balances[recipient].add(amount) <= maxWallet, "wallet");
}
if(msg.sender != pair && !inSwapAndLiquify && swapAndLiquifyEnabled && _balances[address(this)] >= swapThreshold){ swapBack(); }
_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
uint256 finalAmount = !isFeeExempt[sender] && !isFeeExempt[recipient] ? takeFee(sender, recipient, amount) : amount;
_balances[recipient] = _balances[recipient].add(finalAmount);
if(!isDividendExempt[sender]) {
try distributor.setShare(sender, _balances[sender]) {} catch {}
}
if(!isDividendExempt[recipient]) {
try distributor.setShare(recipient, _balances[recipient]) {} catch {}
}
if (distributorGas > 0) {
try distributor.process(distributorGas) {} catch {}
}
emit Transfer(sender, recipient, finalAmount);
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 takeFee(address sender, address recipient, uint256 amount) internal returns (uint256) {
uint256 feeApplicable = pair == recipient ? totalFeeSell : totalFeeBuy;
uint256 feeAmount = amount.mul(feeApplicable).div(feeDenominator);
_balances[address(this)] = _balances[address(this)].add(feeAmount);
emit Transfer(sender, address(this), feeAmount);
return amount.sub(feeAmount);
}
function swapBack() internal lockTheSwap {
uint256 numTokensToSwap = _balances[address(this)];
uint256 amountForLp = numTokensToSwap.mul(lpFeeSell).div(totalFeeSell).div(2);
uint256 amountForRewardToken = numTokensToSwap.mul(rewardFeeSell).div(totalFeeSell);
uint256 amountToSwapForEth = numTokensToSwap.sub(amountForLp).sub(amountForRewardToken);
swapTokensForEth(amountToSwapForEth);
if (address(RewardToken) == address(this)) {
IERC20(RewardToken).transfer(address(distributor), amountForRewardToken);
distributor.deposit(amountForRewardToken);
}
if (address(RewardToken) != address(this)) {
swapTokensForRewardToken(amountForRewardToken);
}
}
function swapTokensForRewardToken(uint256 tokenAmount) private {
address[] memory path = new address[](3);
path[0] = address(this);
path[1] = WETH;
path[2] = RewardToken;
router.swapExactTokensForTokensSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
uint256 dividends = IERC20(RewardToken).balanceOf(address(this));
bool success = IERC20(RewardToken).transfer(address(distributor), dividends);
if (success) {
distributor.deposit(dividends);
}
}
function swapTokensForEth(uint256 tokenAmount) private {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = WETH;
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
uint256 amountETH = address(this).balance;
uint256 marketingBalance = amountETH.mul(marketingFeeSell).div(totalFeeSell);
uint256 devBalance = amountETH.mul(devFeeSell).div(totalFeeSell);
uint256 amountEthLiquidity = amountETH.mul(lpFeeSell).div(totalFeeSell).div(2);
if(amountETH > 0){
payable(devWallet).transfer(devBalance);
payable(marketingWallet).transfer(marketingBalance);
}
if(amountEthLiquidity > 0){
router.addLiquidityETH{value: amountEthLiquidity}(
address(this),
amountEthLiquidity,
0,
0,
0x000000000000000000000000000000000000dEaD,
block.timestamp
);
}
}
function manualSwapBack() external onlyOwner {
swapBack();
}
function manualSendEth() external onlyOwner {
uint256 contractETHBalance = address(this).balance;
uint256 marketingBalanceETH = contractETHBalance.mul(marketingFeeSell).div(totalFeeSell);
uint256 devBalanceETH = contractETHBalance.mul(devFeeSell).div(totalFeeSell);
if(contractETHBalance > 0){
payable(devWallet).transfer(devBalanceETH);
payable(marketingWallet).transfer(marketingBalanceETH);
}
}
function openTrading() external onlyOwner {
launchedAt = block.number;
tradingActive = true;
}
function claimDividend() external {
distributor.claimDividend(msg.sender);
}
function claimDividend(address holder) external onlyOwner {
distributor.claimDividend(holder);
}
function getClaimableDividendOf(address shareholder) public view returns (uint256) {
return distributor.getClaimableDividendOf(shareholder);
}
function getTotalDividends() external view returns (uint256) {
return distributor.totalDividends();
}
function getTotalClaimed() external view returns (uint256) {
return distributor.totalClaimed();
}
function getDividendsClaimedOf (address shareholder) external view returns (uint256) {
return distributor.getDividendsClaimedOf(shareholder);
}
function manualProcessGas(uint256 manualGas) external onlyOwner {
distributor.process(manualGas);
}
}