文件 1 的 1:Got_Milk.sol
pragma solidity ^0.8.19;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
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;
return c;
}
}
contract Ownable is Context {
address private _owner;
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);
}
}
interface IUniswapV2Factory {
function createPair(
address tokenA,
address tokenB
) external returns (address pair);
}
interface IUniswapV2Router02 {
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
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);
}
interface IDividendDistributor {
function setDistributionCriteria(
uint256 _minPeriod,
uint256 _minDistribution
) external;
function setShare(address shareholder, uint256 amount) external;
function deposit(uint256 amount) external;
function process(uint256 gas) external;
function claimDividend(address _user) external;
function getPaidEarnings(
address shareholder
) external view returns (uint256);
function getUnpaidEarnings(
address shareholder
) external view returns (uint256);
function totalDistributed() external view returns (uint256);
}
contract DividendDistributor is IDividendDistributor {
using SafeMath for uint256;
address public token;
IUniswapV2Router02 public router;
struct Share {
uint256 amount;
uint256 totalExcluded;
uint256 totalRealised;
}
address[] public shareholders;
mapping(address => uint256) public shareholderIndexes;
mapping(address => uint256) public 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**9);
uint256 currentIndex;
bool initialized;
modifier initializer() {
require(!initialized);
_;
initialized = true;
}
modifier onlyToken() {
require(msg.sender == token);
_;
}
constructor(address router_) {
token = msg.sender;
router = IUniswapV2Router02(router_);
}
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(uint256 amount) external override onlyToken {
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 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 distributeDividend(address shareholder) internal {
if (shares[shareholder].amount == 0) {
return;
}
uint256 amount = getUnpaidEarnings(shareholder);
if (amount > 0) {
totalDistributed = totalDistributed.add(amount);
IERC20(token).transfer(shareholder, amount);
shareholderClaims[shareholder] = block.timestamp;
shares[shareholder].totalRealised = shares[shareholder]
.totalRealised
.add(amount);
shares[shareholder].totalExcluded = getCumulativeDividends(
shares[shareholder].amount
);
}
}
function claimDividend(address _user) external {
distributeDividend(_user);
}
function getPaidEarnings(address shareholder)
public
view
returns (uint256)
{
return shares[shareholder].totalRealised;
}
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 Got_Milk is Context, IERC20, Ownable {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedFromFee;
mapping(address => bool) private _isDividendExempt;
mapping(address => bool) private bots;
address payable private _taxWallet;
uint256 firstBlock;
uint256 private _initialBuyTax = 15;
uint256 private _initialSellTax = 45;
uint256 private _finalBuyTax = 2;
uint256 private _finalSellTax = 4;
uint256 private _reduceBuyTaxAt = 20;
uint256 private _reduceSellTaxAt = 40;
uint256 private reflectionFeeOnBuying = 1;
uint256 private taxFeeOnBuying = 1;
uint256 private reflectionFeeOnSelling = 3;
uint256 private taxFeeOnSelling = 1;
uint256 private _preventSwapBefore = 35;
uint256 private _buyCount = 0;
uint256 private reflectionFeeCounter = 0;
uint256 private taxFeeCounter = 0;
uint8 private constant _decimals = 9;
uint256 private constant _tTotal = 1_000_000_000 * 10 ** _decimals;
string private constant _name = unicode"got milk?";
string private constant _symbol = unicode"CALCIUM";
uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;
uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;
uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;
uint256 public _maxTaxSwap = 10000000 * 10 ** _decimals;
uint256 public distributorGas = 500000;
DividendDistributor public distributor;
IUniswapV2Router02 private uniswapV2Router;
address public uniswapV2Pair;
bool public tradingOpen;
bool private inSwap = false;
bool private swapEnabled = false;
event MaxTxAmountUpdated(uint _maxTxAmount);
modifier lockTheSwap() {
inSwap = true;
_;
inSwap = false;
}
constructor() {
_taxWallet = payable(msg.sender);
distributor = new DividendDistributor(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
_balances[_msgSender()] = _tTotal;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_taxWallet] = true;
_isDividendExempt[uniswapV2Pair] = true;
_isDividendExempt[address(uniswapV2Router)] = true;
_isDividendExempt[address(this)] = true;
emit Transfer(address(0), _msgSender(), _tTotal);
}
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 totalSupply() public pure override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[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 _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 {
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(from == address(distributor)){
basicTransfer(from, to, amount);
return;
}
uint256 taxAmount = 0;
uint256 totalFee = 0;
if (from != owner() && to != owner()) {
require(!bots[from] && !bots[to]);
taxAmount = amount
.mul(
(_buyCount > _reduceBuyTaxAt)
? _finalBuyTax
: _initialBuyTax
)
.div(100);
totalFee = reflectionFeeOnBuying.add(taxFeeOnBuying);
reflectionFeeCounter = taxAmount.mul(reflectionFeeOnBuying).div(
totalFee
);
taxFeeCounter = taxAmount.mul(taxFeeOnBuying).div(totalFee);
if (
from == uniswapV2Pair &&
to != address(uniswapV2Router) &&
!_isExcludedFromFee[to]
) {
require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
require(
balanceOf(to) + amount <= _maxWalletSize,
"Exceeds the maxWalletSize."
);
if (firstBlock + 3 > block.number) {
require(
!isContract(to) && msg.sender == tx.origin,
"No bots allowed"
);
}
_buyCount++;
}
if (to != uniswapV2Pair && !_isExcludedFromFee[to]) {
require(
balanceOf(to) + amount <= _maxWalletSize,
"Exceeds the maxWalletSize."
);
}
if (to == uniswapV2Pair && from != address(this)) {
taxAmount = amount
.mul(
(_buyCount > _reduceSellTaxAt)
? _finalSellTax
: _initialSellTax
)
.div(100);
totalFee = reflectionFeeOnSelling.add(taxFeeOnSelling);
reflectionFeeCounter = taxAmount
.mul(reflectionFeeOnSelling)
.div(totalFee);
taxFeeCounter = taxAmount.mul(taxFeeOnSelling).div(totalFee);
}
uint256 contractTokenBalance = balanceOf(address(this));
if (
!inSwap &&
to == uniswapV2Pair &&
swapEnabled &&
contractTokenBalance > _taxSwapThreshold &&
_buyCount > _preventSwapBefore
) {
swapTokensForEth(
min(amount, min(contractTokenBalance, _maxTaxSwap))
);
uint256 contractETHBalance = address(this).balance;
if (contractETHBalance > 0) {
sendETHToFee(contractETHBalance);
}
}
}
if (taxAmount > 0) {
_balances[address(distributor)] = _balances[address(distributor)].add(
reflectionFeeCounter
);
emit Transfer(from, address(distributor), reflectionFeeCounter);
_balances[address(this)] = _balances[address(this)].add(
taxFeeCounter
);
emit Transfer(from, address(this), taxFeeCounter);
}
_balances[from] = _balances[from].sub(amount);
_balances[to] = _balances[to].add(amount.sub(taxAmount));
emit Transfer(from, to, amount.sub(taxAmount));
if (!_isDividendExempt[from]) {
try distributor.setShare(from, _balances[from]) {} catch {}
}
if (!_isDividendExempt[to]) {
try distributor.setShare(to, _balances[to]) {} catch {}
}
try distributor.deposit(reflectionFeeCounter) {} catch {}
try distributor.process(distributorGas) {} catch {}
}
function basicTransfer(address from, address to, uint256 amount) private {
_balances[from] = _balances[from].sub(amount);
_balances[to] = _balances[to].add(amount);
emit Transfer(from, to, amount);
}
function min(uint256 a, uint256 b) private pure returns (uint256) {
return (a > b) ? b : a;
}
function isContract(address account) private view returns (bool) {
bool c = account.code.length == 0 ? false : true;
return c;
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function claimDividend() external {
distributor.claimDividend(msg.sender);
}
function getPaidDividend(
address shareholder
) public view returns (uint256) {
return distributor.getPaidEarnings(shareholder);
}
function getUnpaidDividend(
address shareholder
) external view returns (uint256) {
return distributor.getUnpaidEarnings(shareholder);
}
function getTotalDistributedDividend() external view returns (uint256) {
return distributor.totalDistributed();
}
function setIsDividendExempt(
address holder,
bool exempt
) external onlyOwner {
require(holder != address(this) && holder != uniswapV2Pair);
_isDividendExempt[holder] = exempt;
if (exempt) {
distributor.setShare(holder, 0);
} else {
distributor.setShare(holder, _balances[holder]);
}
}
function setDistributionCriteria(
uint256 _minPeriod,
uint256 _minDistribution
) external onlyOwner {
distributor.setDistributionCriteria(_minPeriod, _minDistribution);
}
function setDistributorSettings(uint256 gas) external onlyOwner {
require(gas < 750000, "Gas must be lower than 750000");
distributorGas = gas;
}
function forceCoolDownTax() external onlyOwner {
_initialBuyTax = 20;
_initialSellTax = 20;
}
function removeLimits() external onlyOwner {
_maxTxAmount = _tTotal;
_maxWalletSize = _tTotal;
emit MaxTxAmountUpdated(_tTotal);
}
function sendETHToFee(uint256 amount) private {
_taxWallet.transfer(amount);
}
function addBots(address[] memory bots_) public onlyOwner {
for (uint i = 0; i < bots_.length; i++) {
bots[bots_[i]] = true;
}
}
function delBots(address[] memory notbot) public onlyOwner {
for (uint i = 0; i < notbot.length; i++) {
bots[notbot[i]] = false;
}
}
function isBot(address a) public view returns (bool) {
return bots[a];
}
function openTrading() external onlyOwner {
require(!tradingOpen, "trading is already open");
uniswapV2Router = IUniswapV2Router02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
_approve(address(this), address(uniswapV2Router), _tTotal);
uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
address(this),
uniswapV2Router.WETH()
);
IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
swapEnabled = true;
tradingOpen = true;
firstBlock = block.number;
}
receive() external payable {}
}