Contract Source Code:
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.0;
import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
* - the caller must have allowance for ``from``'s tokens of at least
* `amount`.
*/
function transferFrom(
address from,
address to,
uint256 amount
) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `from` to `to`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
*/
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
}
_balances[to] += amount;
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
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);
}
/**
* @dev Updates `owner` s allowance for `spender` based on spent `amount`.
*
* Does not update the allowance amount in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Might emit an {Approval} event.
*/
function _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity ^0.8.0;
interface ILeetSwapV2Factory {
function allPairsLength() external view returns (uint256);
function isPair(address pair) external view returns (bool);
function pairCodeHash() external pure returns (bytes32);
function getPair(
address tokenA,
address token,
bool stable
) external view returns (address);
function createPair(
address tokenA,
address tokenB,
bool stable
) external returns (address);
function createPair(address tokenA, address tokenB)
external
returns (address);
function getInitializable()
external
view
returns (
address token0,
address token1,
bool stable
);
function protocolFeesShare() external view returns (uint256);
function protocolFeesRecipient() external view returns (address);
function tradingFees(address pair, address to)
external
view
returns (uint256);
function isPaused() external view returns (bool);
}
// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity ^0.8.0;
interface ILeetSwapV2Pair {
function factory() external view returns (address);
function fees() external view returns (address);
function transferFrom(
address src,
address dst,
uint256 amount
) external returns (bool);
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
function swap(
uint256 amount0Out,
uint256 amount1Out,
address to,
bytes calldata data
) external;
function burn(address to)
external
returns (uint256 amount0, uint256 amount1);
function mint(address to) external returns (uint256 liquidity);
function getReserves()
external
view
returns (
uint256 _reserve0,
uint256 _reserve1,
uint256 _blockTimestampLast
);
function getAmountOut(uint256, address) external view returns (uint256);
function current(address tokenIn, uint256 amountIn)
external
view
returns (uint256);
function token0() external view returns (address);
function token1() external view returns (address);
function stable() external view returns (bool);
function balanceOf(address) external view returns (uint256);
//LP token pricing
function sample(
address tokenIn,
uint256 amountIn,
uint256 points,
uint256 window
) external view returns (uint256[] memory);
function quote(
address tokenIn,
uint256 amountIn,
uint256 granularity
) external view returns (uint256);
function claimFeesFor(address account)
external
returns (uint256 claimed0, uint256 claimed1);
function claimFees() external returns (uint256 claimed0, uint256 claimed1);
function claimableFeesFor(address account)
external
returns (uint256 claimed0, uint256 claimed1);
function claimableFees()
external
returns (uint256 claimed0, uint256 claimed1);
}
// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity ^0.8.0;
import "@leetswap/interfaces/IWCANTO.sol";
interface ILeetSwapV2Router01 {
function factory() external view returns (address);
function WETH() external view returns (address);
function wcanto() external view returns (IWCANTO);
function addLiquidity(
address tokenA,
address tokenB,
uint256 amountADesired,
uint256 amountBDesired,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
)
external
returns (
uint256 amountA,
uint256 amountB,
uint256 liquidity
);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
function removeLiquidity(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
) external returns (uint256 amountA, uint256 amountB);
function removeLiquidityETH(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountToken, uint256 amountETH);
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountCANTOMin,
address to,
uint256 deadline
) external returns (uint256 amountCANTO);
function swapExactTokensForTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapExactETHForTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);
function swapExactTokensForETH(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function getAmountOut(
uint256 amountIn,
address tokenIn,
address tokenOut
) external view returns (uint256 amount);
function getAmountsOut(uint256 amountIn, address[] calldata path)
external
view
returns (uint256[] memory amounts);
function pairFor(address tokenA, address tokenB)
external
view
returns (address pair);
}
// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity ^0.8.0;
interface ILiquidityManageable {
function setLiquidityManagementPhase(bool _isManagingLiquidity) external;
function isLiquidityManager(address _addr) external returns (bool);
function isLiquidityManagementPhase() external returns (bool);
}
// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity ^0.8.0;
interface IWCANTO {
function deposit() external payable;
function transfer(address to, uint256 value) external returns (bool);
function withdraw(uint256) external;
}
// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity =0.8.17;
import "@leetswap/interfaces/ILiquidityManageable.sol";
import "@leetswap/dex/v2/interfaces/ILeetSwapV2Router01.sol";
import "@leetswap/dex/v2/interfaces/ILeetSwapV2Factory.sol";
import "@leetswap/dex/v2/interfaces/ILeetSwapV2Pair.sol";
import "@leetswap/tokens/interfaces/IFeeDiscountOracle.sol";
import {ERC20, IERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
contract LeetToken is ERC20, Ownable, ILiquidityManageable {
address public constant DEAD = 0x000000000000000000000000000000000000dEaD;
uint256 public constant FEE_DENOMINATOR = 1e4;
uint256 public constant MAX_FEE = 1000;
uint256 public burnBuyFee;
uint256 public farmsBuyFee;
uint256 public stakingBuyFee;
uint256 public treasuryBuyFee;
uint256 public totalBuyFee;
uint256 public burnSellFee;
uint256 public farmsSellFee;
uint256 public stakingSellFee;
uint256 public treasurySellFee;
uint256 public totalSellFee;
address public farmsFeeRecipient;
address public stakingFeeRecipient;
address public treasuryFeeRecipient;
bool public tradingEnabled;
uint256 public tradingEnabledTimestamp = 0; // 0 means trading is not active
ILeetSwapV2Router01 public swapFeesRouter;
IFeeDiscountOracle public feeDiscountOracle;
address public swapPairToken;
bool public swappingFeesEnabled;
bool public isSwappingFees;
uint256 public swapFeesAtAmount;
uint256 public maxSwapFeesAmount;
uint256 public maxWalletAmount;
uint256 public sniperBuyBaseFee = 2000;
uint256 public sniperBuyFeeDecayPeriod = 15 minutes;
uint256 public sniperBuyFeeBurnShare = 2500;
bool public sniperBuyFeeEnabled = true;
uint256 public sniperSellBaseFee = 2000;
uint256 public sniperSellFeeDecayPeriod = 24 hours;
uint256 public sniperSellFeeBurnShare = 2500;
bool public sniperSellFeeEnabled = true;
bool public pairAutoDetectionEnabled;
bool public indirectSwapFeeEnabled;
bool public maxWalletEnabled;
mapping(address => bool) public isExcludedFromFee;
mapping(address => bool) public isLiquidityManager;
mapping(address => bool) public isWhitelistedFactory;
mapping(address => bool) public isBot;
bool internal _isLiquidityManagementPhase;
uint256 internal _currentCacheVersion;
mapping(address => bool) internal _isLeetPair;
mapping(uint256 => mapping(address => bool))
internal _isCachedAutodetectedLeetPair;
mapping(address => bool) internal _isExcludedFromMaxWallet;
event BuyFeeUpdated(uint256 _fee, uint256 _previousFee);
event SellFeeUpdated(uint256 _fee, uint256 _previousFee);
event LeetPairAdded(address _pair);
event LeetPairRemoved(address _pair);
event AddressExcludedFromFees(address _address);
event AddressIncludedInFees(address _address);
event WhitelistedFactoryAdded(address _factory);
event WhitelistedFactoryRemoved(address _factory);
error TradingNotEnabled();
error TradingAlreadyEnabled();
error SniperBotDetected();
error MaxWalletReached();
error TimestampIsInThePast();
error FeeTooHigh();
error InvalidFeeRecipient();
error NotLiquidityManager();
error TransferFailed();
error ArrayLengthMismatch();
constructor(address _router, address _swapPairToken) ERC20("Leet", "LEET") {
ILeetSwapV2Router01 router = ILeetSwapV2Router01(_router);
ILeetSwapV2Factory factory = ILeetSwapV2Factory(router.factory());
swapPairToken = _swapPairToken;
isExcludedFromFee[owner()] = true;
isExcludedFromFee[address(this)] = true;
isExcludedFromFee[DEAD] = true;
_isExcludedFromMaxWallet[owner()] = true;
_isExcludedFromMaxWallet[address(this)] = true;
_isExcludedFromMaxWallet[DEAD] = true;
burnBuyFee = 0;
farmsBuyFee = 75;
stakingBuyFee = 25;
treasuryBuyFee = 0;
setBuyFees(burnBuyFee, farmsBuyFee, stakingBuyFee, treasuryBuyFee);
burnSellFee = 0;
farmsSellFee = 150;
stakingSellFee = 100;
treasurySellFee = 50;
setSellFees(burnSellFee, farmsSellFee, stakingSellFee, treasurySellFee);
farmsFeeRecipient = owner();
stakingFeeRecipient = owner();
treasuryFeeRecipient = owner();
isLiquidityManager[address(router)] = true;
isWhitelistedFactory[address(factory)] = true;
address pair = factory.createPair(address(this), swapPairToken);
address feesVault = ILeetSwapV2Pair(pair).fees();
_isExcludedFromMaxWallet[feesVault] = true;
isExcludedFromFee[feesVault] = true;
_isLeetPair[pair] = true;
maxWalletEnabled = true;
// pairAutoDetectionEnabled = true;
_mint(owner(), 1337000 * 10**decimals());
swapFeesRouter = router;
swapFeesAtAmount = (totalSupply() * 3) / 1e5;
maxSwapFeesAmount = (totalSupply() * 2) / 1e4;
maxWalletAmount = (totalSupply() * 1) / 1e3; // 1.337% of the CIRCULATING supply
}
modifier onlyLiquidityManager() {
if (!isLiquidityManager[msg.sender]) {
revert NotLiquidityManager();
}
_;
}
/************************************************************************/
function isLeetPair(address _pair) public returns (bool isPair) {
if (_isLeetPair[_pair]) {
return true;
}
if (!pairAutoDetectionEnabled) {
return false;
}
if (_isCachedAutodetectedLeetPair[_currentCacheVersion][_pair]) {
return true;
}
if (_pair.code.length == 0) {
return false;
}
(bool success, bytes memory data) = _pair.staticcall(
abi.encodeWithSignature("factory()")
);
if (!success) return false;
address factory = abi.decode(data, (address));
if (factory == address(0)) return false;
bool isVerifiedPair = isWhitelistedFactory[factory] &&
ILeetSwapV2Factory(factory).isPair(_pair);
(success, data) = _pair.staticcall(abi.encodeWithSignature("token0()"));
if (!success) return false;
address token0 = abi.decode(data, (address));
if (token0 == address(this)) {
if (isVerifiedPair) {
_isCachedAutodetectedLeetPair[_currentCacheVersion][
_pair
] = true;
}
return true;
}
(success, data) = _pair.staticcall(abi.encodeWithSignature("token1()"));
if (!success) return false;
address token1 = abi.decode(data, (address));
if (token1 == address(this)) {
if (isVerifiedPair) {
_isCachedAutodetectedLeetPair[_currentCacheVersion][
_pair
] = true;
}
return true;
}
return false;
}
function _shouldTakeTransferTax(address sender, address recipient)
internal
returns (bool)
{
if (isExcludedFromFee[sender] || isExcludedFromFee[recipient]) {
return false;
}
return
!_isLiquidityManagementPhase &&
(isLeetPair(sender) || isLeetPair(recipient));
}
function sniperBuyFee() public view returns (uint256) {
if (!sniperBuyFeeEnabled) {
return 0;
}
uint256 timeSinceLaunch = block.timestamp - tradingEnabledTimestamp;
if (timeSinceLaunch >= sniperBuyFeeDecayPeriod) {
return 0;
}
return
sniperBuyBaseFee -
(sniperBuyBaseFee * timeSinceLaunch) /
sniperBuyFeeDecayPeriod;
}
function sniperSellFee() public view returns (uint256) {
if (!sniperSellFeeEnabled) {
return 0;
}
uint256 timeSinceLaunch = block.timestamp - tradingEnabledTimestamp;
if (timeSinceLaunch >= sniperSellFeeDecayPeriod) {
return 0;
}
return
sniperSellBaseFee -
(sniperSellBaseFee * timeSinceLaunch) /
sniperSellFeeDecayPeriod;
}
/************************************************************************/
function buyFeeDiscountFor(address account, uint256 totalFeeAmount)
public
view
returns (uint256)
{
if (address(feeDiscountOracle) == address(0)) return 0;
return feeDiscountOracle.buyFeeDiscountFor(account, totalFeeAmount);
}
function sellFeeDiscountFor(address account, uint256 totalFeeAmount)
public
view
returns (uint256)
{
if (address(feeDiscountOracle) == address(0)) return 0;
return feeDiscountOracle.sellFeeDiscountFor(account, totalFeeAmount);
}
function _takeBuyFee(
address sender,
address user,
uint256 amount
) internal returns (uint256) {
if (totalBuyFee == 0) return 0;
uint256 totalFeeAmount = (amount * totalBuyFee) / FEE_DENOMINATOR;
uint256 feeDiscountAmount = buyFeeDiscountFor(user, totalFeeAmount);
totalFeeAmount -= feeDiscountAmount;
if (totalFeeAmount == 0) return 0;
uint256 burnFeeAmount = (totalFeeAmount * burnBuyFee) / totalBuyFee;
uint256 farmsFeeAmount = (totalFeeAmount * farmsBuyFee) / totalBuyFee;
uint256 stakingFeeAmount = (totalFeeAmount * stakingBuyFee) /
totalBuyFee;
uint256 treasuryFeeAmount = totalFeeAmount -
burnFeeAmount -
farmsFeeAmount -
stakingFeeAmount;
if (burnFeeAmount > 0) super._transfer(sender, DEAD, burnFeeAmount);
if (farmsFeeAmount > 0)
super._transfer(sender, farmsFeeRecipient, farmsFeeAmount);
if (stakingFeeAmount > 0)
super._transfer(sender, stakingFeeRecipient, stakingFeeAmount);
if (treasuryFeeAmount > 0)
super._transfer(sender, address(this), treasuryFeeAmount);
return totalFeeAmount;
}
function _takeSellFee(
address sender,
address user,
uint256 amount
) internal returns (uint256) {
if (totalSellFee == 0) return 0;
uint256 totalFeeAmount = (amount * totalSellFee) / FEE_DENOMINATOR;
uint256 feeDiscountAmount = sellFeeDiscountFor(user, totalFeeAmount);
totalFeeAmount -= feeDiscountAmount;
if (totalFeeAmount == 0) return 0;
uint256 burnFeeAmount = (totalFeeAmount * burnSellFee) / totalSellFee;
uint256 farmsFeeAmount = (totalFeeAmount * farmsSellFee) / totalSellFee;
uint256 stakingFeeAmount = (totalFeeAmount * stakingSellFee) /
totalSellFee;
uint256 treasuryFeeAmount = totalFeeAmount -
burnFeeAmount -
farmsFeeAmount -
stakingFeeAmount;
if (burnFeeAmount > 0) super._transfer(sender, DEAD, burnFeeAmount);
if (farmsFeeAmount > 0)
super._transfer(sender, farmsFeeRecipient, farmsFeeAmount);
if (stakingFeeAmount > 0)
super._transfer(sender, stakingFeeRecipient, stakingFeeAmount);
if (treasuryFeeAmount > 0)
super._transfer(sender, address(this), treasuryFeeAmount);
return totalFeeAmount;
}
function _takeSniperBuyFee(address sender, uint256 amount)
internal
returns (uint256)
{
uint256 totalFeeAmount = (amount * sniperBuyFee()) / FEE_DENOMINATOR;
uint256 burnFeeAmount = (totalFeeAmount * sniperBuyFeeBurnShare) /
FEE_DENOMINATOR;
uint256 treasuryFeeAmount = totalFeeAmount - burnFeeAmount;
if (burnFeeAmount > 0) super._transfer(sender, DEAD, burnFeeAmount);
if (treasuryFeeAmount > 0)
super._transfer(sender, address(this), treasuryFeeAmount);
return totalFeeAmount;
}
function _takeSniperSellFee(address sender, uint256 amount)
internal
returns (uint256)
{
uint256 totalFeeAmount = (amount * sniperSellFee()) / FEE_DENOMINATOR;
uint256 burnFeeAmount = (totalFeeAmount * sniperSellFeeBurnShare) /
FEE_DENOMINATOR;
uint256 treasuryFeeAmount = totalFeeAmount - burnFeeAmount;
if (burnFeeAmount > 0) super._transfer(sender, DEAD, burnFeeAmount);
if (treasuryFeeAmount > 0)
super._transfer(sender, address(this), treasuryFeeAmount);
return totalFeeAmount;
}
function _transfer(
address sender,
address recipient,
uint256 amount
) internal override {
if (
!(tradingEnabled && tradingEnabledTimestamp <= block.timestamp) &&
!isExcludedFromFee[sender] &&
!isExcludedFromFee[recipient]
) {
revert TradingNotEnabled();
}
if (isBot[sender] || isBot[recipient]) revert SniperBotDetected();
if (
maxWalletEnabled &&
!isExcludedFromMaxWallet(recipient) &&
balanceOf(recipient) + amount > maxWalletAmount
) revert MaxWalletReached();
bool takeFee = !isSwappingFees &&
_shouldTakeTransferTax(sender, recipient);
bool isBuy = isLeetPair(sender);
bool isSell = isLeetPair(recipient);
bool isIndirectSwap = (_isLeetPair[sender] ||
_isCachedAutodetectedLeetPair[_currentCacheVersion][sender]) &&
(_isLeetPair[recipient] ||
_isCachedAutodetectedLeetPair[_currentCacheVersion][recipient]);
takeFee = takeFee && (indirectSwapFeeEnabled || !isIndirectSwap);
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwapFees = contractTokenBalance >= swapFeesAtAmount;
bool isEOATransfer = sender.code.length == 0 &&
recipient.code.length == 0;
if (
canSwapFees &&
swappingFeesEnabled &&
!isSwappingFees &&
!_isLiquidityManagementPhase &&
!isIndirectSwap &&
(isSell || isEOATransfer) &&
!isExcludedFromFee[sender] &&
!isExcludedFromFee[recipient]
) {
isSwappingFees = true;
_swapFees();
isSwappingFees = false;
}
uint256 totalFeeAmount;
if (takeFee) {
if (isSell) {
totalFeeAmount = _takeSellFee(sender, sender, amount);
totalFeeAmount += _takeSniperSellFee(sender, amount);
} else if (isBuy) {
totalFeeAmount = _takeBuyFee(sender, recipient, amount);
totalFeeAmount += _takeSniperBuyFee(sender, amount);
}
}
super._transfer(sender, recipient, amount - totalFeeAmount);
}
/************************************************************************/
function _swapFees() internal {
uint256 contractTokenBalance = balanceOf(address(this));
uint256 amountToSwap = contractTokenBalance > maxSwapFeesAmount
? maxSwapFeesAmount
: contractTokenBalance;
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = swapPairToken;
_approve(address(this), address(swapFeesRouter), amountToSwap);
swapFeesRouter.swapExactTokensForTokens(
amountToSwap,
0,
path,
treasuryFeeRecipient,
block.timestamp
);
}
/************************************************************************/
function isLiquidityManagementPhase() external view returns (bool) {
return _isLiquidityManagementPhase;
}
function setLiquidityManagementPhase(bool isLiquidityManagementPhase_)
external
onlyLiquidityManager
{
_isLiquidityManagementPhase = isLiquidityManagementPhase_;
}
/************************************************************************/
function withdrawStuckEth(uint256 amount) public onlyOwner {
(bool success, ) = address(msg.sender).call{value: amount}("");
if (!success) revert TransferFailed();
}
function withdrawStuckEth() public onlyOwner {
withdrawStuckEth(address(this).balance);
}
function withdrawStuckTokens(IERC20 token, uint256 amount)
public
onlyOwner
{
bool success = token.transfer(msg.sender, amount);
if (!success) revert TransferFailed();
}
function withdrawStuckTokens(IERC20 token) public onlyOwner {
uint256 balance = token.balanceOf(address(this));
withdrawStuckTokens(token, balance);
}
function airdropHolders(address[] memory wallets, uint256[] memory amounts)
external
onlyOwner
{
if (wallets.length != amounts.length) {
revert ArrayLengthMismatch();
}
for (uint256 i = 0; i < wallets.length; i++) {
address wallet = wallets[i];
uint256 amount = amounts[i];
_transfer(msg.sender, wallet, amount);
}
}
/************************************************************************/
function isExcludedFromMaxWallet(address account)
public
view
returns (bool)
{
return _isExcludedFromMaxWallet[account] || _isLeetPair[account];
}
function excludeFromMaxWallet(address account) external onlyOwner {
_isExcludedFromMaxWallet[account] = true;
}
function includeInMaxWallet(address account) external onlyOwner {
_isExcludedFromMaxWallet[account] = false;
}
function setMaxWalletEnabled(bool enabled) external onlyOwner {
maxWalletEnabled = enabled;
}
/************************************************************************/
function addLeetPair(address _pair) external onlyOwner {
_isLeetPair[_pair] = true;
emit LeetPairAdded(_pair);
}
function removeLeetPair(address _pair) external onlyOwner {
_isLeetPair[_pair] = false;
emit LeetPairRemoved(_pair);
}
function excludeFromFee(address _account) external onlyOwner {
isExcludedFromFee[_account] = true;
emit AddressExcludedFromFees(_account);
}
function includeInFee(address _account) external onlyOwner {
isExcludedFromFee[_account] = false;
emit AddressIncludedInFees(_account);
}
function setFarmsFeeRecipient(address _account) external onlyOwner {
if (_account == address(0)) {
revert InvalidFeeRecipient();
}
farmsFeeRecipient = _account;
}
function setStakingFeeRecipient(address _account) external onlyOwner {
if (_account == address(0)) {
revert InvalidFeeRecipient();
}
stakingFeeRecipient = _account;
}
function setTreasuryFeeRecipient(address _account) external onlyOwner {
if (_account == address(0)) {
revert InvalidFeeRecipient();
}
treasuryFeeRecipient = _account;
}
function setBuyFees(
uint256 _burnBuyFee,
uint256 _farmsBuyFee,
uint256 _stakingBuyFee,
uint256 _treasuryBuyFee
) public onlyOwner {
if (
_burnBuyFee + _farmsBuyFee + _stakingBuyFee + _treasuryBuyFee >
MAX_FEE
) {
revert FeeTooHigh();
}
burnBuyFee = _burnBuyFee;
farmsBuyFee = _farmsBuyFee;
stakingBuyFee = _stakingBuyFee;
treasuryBuyFee = _treasuryBuyFee;
totalBuyFee = burnBuyFee + farmsBuyFee + stakingBuyFee + treasuryBuyFee;
}
function setSellFees(
uint256 _burnSellFee,
uint256 _farmsSellFee,
uint256 _stakingSellFee,
uint256 _treasurySellFee
) public onlyOwner {
if (
_burnSellFee + _farmsSellFee + _stakingSellFee + _treasurySellFee >
MAX_FEE
) {
revert FeeTooHigh();
}
burnSellFee = _burnSellFee;
farmsSellFee = _farmsSellFee;
stakingSellFee = _stakingSellFee;
treasurySellFee = _treasurySellFee;
totalSellFee =
burnSellFee +
farmsSellFee +
stakingSellFee +
treasurySellFee;
}
function setLiquidityManager(address _liquidityManager, bool _isManager)
public
onlyOwner
{
isLiquidityManager[_liquidityManager] = _isManager;
}
function addWhitelistedFactory(address _factory) public onlyOwner {
isWhitelistedFactory[_factory] = true;
}
function removeWhitelistedFactory(address _factory) public onlyOwner {
isWhitelistedFactory[_factory] = false;
_currentCacheVersion++;
}
function setIndirectSwapFeeEnabled(bool _indirectSwapFeeEnabled)
public
onlyOwner
{
indirectSwapFeeEnabled = _indirectSwapFeeEnabled;
}
function enableTrading() public onlyOwner {
if (tradingEnabled) revert TradingAlreadyEnabled();
tradingEnabled = true;
if (tradingEnabledTimestamp < block.timestamp) {
tradingEnabledTimestamp = block.timestamp;
}
swappingFeesEnabled = true;
}
function setTradingEnabledTimestamp(uint256 _timestamp) public onlyOwner {
if (tradingEnabled && tradingEnabledTimestamp <= block.timestamp) {
revert TradingAlreadyEnabled();
}
if (tradingEnabled && _timestamp < block.timestamp) {
revert TimestampIsInThePast();
}
tradingEnabledTimestamp = _timestamp;
}
function setPairAutoDetectionEnabled(bool _pairAutoDetectionEnabled)
public
onlyOwner
{
pairAutoDetectionEnabled = _pairAutoDetectionEnabled;
}
function setSniperBuyFeeEnabled(bool _sniperBuyFeeEnabled)
public
onlyOwner
{
sniperBuyFeeEnabled = _sniperBuyFeeEnabled;
}
function setSniperSellFeeEnabled(bool _sniperSellFeeEnabled)
public
onlyOwner
{
sniperSellFeeEnabled = _sniperSellFeeEnabled;
}
function setSwapFeesAtAmount(uint256 _swapFeesAtAmount) public onlyOwner {
swapFeesAtAmount = _swapFeesAtAmount;
}
function setMaxSwapFeesAmount(uint256 _maxSwapFeesAmount) public onlyOwner {
maxSwapFeesAmount = _maxSwapFeesAmount;
}
function setSwappingFeesEnabled(bool _swappingFeesEnabled)
public
onlyOwner
{
swappingFeesEnabled = _swappingFeesEnabled;
}
function setSwapFeesRouter(address _swapFeesRouter) public onlyOwner {
swapFeesRouter = ILeetSwapV2Router01(_swapFeesRouter);
}
function setFeeDiscountOracle(IFeeDiscountOracle _oracle) public onlyOwner {
feeDiscountOracle = _oracle;
}
function addBot(address account) public onlyOwner {
isBot[account] = true;
}
function removeBot(address account) public onlyOwner {
isBot[account] = false;
}
}
// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity ^0.8.0;
interface IFeeDiscountOracle {
function buyFeeDiscountFor(address account, uint256 totalFeeAmount)
external
view
returns (uint256 discountAmount);
function sellFeeDiscountFor(address account, uint256 totalFeeAmount)
external
view
returns (uint256 discountAmount);
}