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// This contract is part of Zellic’s smart contract dataset, which is a collection of publicly available contract code gathered as of March 2023. |
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/**
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Tg: https://t.me/frankendogeerc
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Twitter: https://twitter.com/FrankenDoge/
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*/
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pragma solidity ^0.8.17;
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library Address {
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function isContract(address account) internal view returns (bool) {
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// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
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// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
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// for accounts without code, i.e. `keccak256('')`
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bytes32 codehash;
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bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
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// solhint-disable-next-line no-inline-assembly
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assembly { codehash := extcodehash(account) }
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return (codehash != accountHash && codehash != 0x0);
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}
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function sendValue(address payable recipient, uint256 amount) internal {
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require(address(this).balance >= amount, "Address: insufficient balance");
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// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
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(bool success, ) = recipient.call{ value: amount }("");
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require(success, "Address: unable to send value, recipient may have reverted");
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}
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function functionCall(address target, bytes memory data) internal returns (bytes memory) {
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return functionCall(target, data, "Address: low-level call failed");
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}
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function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
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return _functionCallWithValue(target, data, 0, errorMessage);
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}
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function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
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return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
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}
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function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
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require(address(this).balance >= value, "Address: insufficient balance for call");
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return _functionCallWithValue(target, data, value, errorMessage);
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}
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function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
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require(isContract(target), "Address: call to non-contract");
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// solhint-disable-next-line avoid-low-level-calls
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(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
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if (success) {
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return returndata;
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} else {
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// Look for revert reason and bubble it up if present
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if (returndata.length > 0) {
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// The easiest way to bubble the revert reason is using memory via assembly
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// solhint-disable-next-line no-inline-assembly
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assembly {
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let returndata_size := mload(returndata)
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revert(add(32, returndata), returndata_size)
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}
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} else {
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revert(errorMessage);
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}
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}
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}
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}
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abstract contract Context {
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function _msgSender() internal view returns (address payable) {
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return payable(msg.sender);
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}
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function _msgData() internal view returns (bytes memory) {
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this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
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return msg.data;
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}
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}
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library SafeMath {
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function add(uint256 a, uint256 b) internal pure returns (uint256) {
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uint256 c = a + b;
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require(c >= a, "SafeMath: addition overflow");
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return c;
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}
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function sub(uint256 a, uint256 b) internal pure returns (uint256) {
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return sub(a, b, "SafeMath: subtraction overflow");
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}
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function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
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require(b <= a, errorMessage);
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uint256 c = a - b;
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return c;
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}
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function mul(uint256 a, uint256 b) internal pure returns (uint256) {
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if (a == 0) {
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return 0;
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}
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uint256 c = a * b;
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require(c / a == b, "SafeMath: multiplication overflow");
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return c;
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}
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function div(uint256 a, uint256 b) internal pure returns (uint256) {
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return div(a, b, "SafeMath: division by zero");
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}
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function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
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// Solidity only automatically asserts when dividing by 0
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require(b > 0, errorMessage);
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uint256 c = a / b;
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// assert(a == b * c + a % b); // There is no case in which this doesn't hold
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return c;
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}
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}
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interface IERC20 {
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function totalSupply() external view returns (uint256);
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/**
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* @dev Returns the amount of tokens owned by `account`.
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*/
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function balanceOf(address account) external view returns (uint256);
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/**
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* @dev Moves `amount` tokens from the caller's account to `recipient`.
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*
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* Returns a boolean value indicating whether the operation succeeded.
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*
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* Emits a {Transfer} event.
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*/
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function transfer(address recipient, uint256 amount) external returns (bool);
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/**
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* @dev Returns the remaining number of tokens that `spender` will be
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* allowed to spend on behalf of `owner` through {transferFrom}. This is
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* zero by default.
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*
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* This value changes when {approve} or {transferFrom} are called.
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*/
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// K8u
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function allowance(address owner, address spender) external view returns (uint256);
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/**
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* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
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*
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* Returns a boolean value indicating whether the operation succeeded.
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*
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* IMPORTANT: Beware that changing an allowance with this method brings the risk
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* that someone may use both the old and the new allowance by unfortunate
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* transaction ordering. One possible solution to mitigate this race
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* condition is to first reduce the spender's allowance to 0 and set the
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* desired value afterwards:
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* https://github.com/ethereum/EIPs/issues/20
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*
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* Emits an {Approval} event.
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*/
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function approve(address spender, uint256 amount) external returns (bool);
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/**
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* @dev Moves `amount` tokens from `sender` to `recipient` using the
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* allowance mechanism. `amount` is then deducted from the caller's
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* allowance.
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*
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* Returns a boolean value indicating whether the operation succeeded.
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*
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* Emits a {Transfer} event.
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*/
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function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
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/**
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* @dev Emitted when `value` tokens are moved from one account (`from`) to
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* another (`to`).
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*
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* Note that `value` may be zero.
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*/
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event Transfer(address indexed from, address indexed to, uint256 value);
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/**
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* @dev Emitted when the allowance of a `spender` for an `owner` is set by
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* a call to {approve}. `value` is the new allowance.
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*/
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event Approval(address indexed owner, address indexed spender, uint256 value);
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}
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contract Ownable is Context {
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address private _owner;
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event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
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/**
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* @dev Initializes the contract setting the deployer as the initial owner.
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*/
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constructor () {
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address msgSender = _msgSender();
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_owner = msgSender;
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emit OwnershipTransferred(address(0), msgSender);
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}
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/**
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* @dev Returns the address of the current owner.
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*/
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function owner() public view returns (address) {
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return _owner;
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}
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/**
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* @dev Throws if called by any account other than the owner.
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*/
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modifier onlyOwner() {
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require(_owner == _msgSender(), "Ownable: caller is not the owner");
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_;
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}
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/**
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* @dev Leaves the contract without owner. It will not be possible to call
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* `onlyOwner` functions anymore. Can only be called by the current owner.
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*
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* NOTE: Renouncing ownership will leave the contract without an owner,
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* thereby removing any functionality that is only available to the owner.
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*/
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function renounceOwnership() public virtual onlyOwner {
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emit OwnershipTransferred(_owner, address(0));
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_owner = address(0);
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}
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/**
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* @dev Transfers ownership of the contract to a new account (`newOwner`).
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* Can only be called by the current owner.
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*/
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function transferOwnership(address newOwner) public virtual onlyOwner {
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require(newOwner != address(0), "Ownable: new owner is the zero address");
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emit OwnershipTransferred(_owner, newOwner);
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_owner = newOwner;
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}
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}
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interface IDEXFactory {
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function createPair(address tokenA, address tokenB) external returns (address uniswapV2Pair);
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}
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interface IDEXRouter {
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function factory() external pure returns (address);
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function WETH() external pure returns (address);
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function addLiquidity(
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address tokenA,
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address tokenB,
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uint amountADesired,
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uint amountBDesired,
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uint amountAMin,
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uint amountBMin,
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address to,
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uint deadline
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) external returns (uint amountA, uint amountB, uint liquidity);
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function addLiquidityETH(
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address token,
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uint amountTokenDesired,
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uint amountTokenMin,
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uint amountETHMin,
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address to,
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uint deadline
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) external payable returns (uint amountToken, uint amountETH, uint liquidity);
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function swapExactTokensForTokensSupportingFeeOnTransferTokens(
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uint amountIn,
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uint amountOutMin,
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address[] calldata path,
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address to,
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uint deadline
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) external;
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function swapExactETHForTokensSupportingFeeOnTransferTokens(
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uint amountOutMin,
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address[] calldata path,
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address to,
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uint deadline
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) external payable;
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function swapExactTokensForETHSupportingFeeOnTransferTokens(
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uint amountIn,
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uint amountOutMin,
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address[] calldata path,
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address to,
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uint deadline
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) external;
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}
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contract FrankenDoge is IERC20, Ownable {
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using SafeMath for uint256;
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address WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
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address DEAD = 0x000000000000000000000000000000000000dEaD;
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address ZERO = 0x0000000000000000000000000000000000000000;
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string constant _name = "Franken Doge";
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string constant _symbol = "FROGE";
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uint8 constant _decimals = 9;
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uint256 _totalSupply = 100000000000 * (10 ** _decimals); // 100,000,000,000
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uint256 public _maxWalletSize = (_totalSupply * 20) / 1000; // 2%
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mapping (address => uint256) _balances;
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mapping (address => mapping (address => uint256)) _allowances;
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mapping (address => bool) isFeeExempt;
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mapping (address => bool) isMaxWalletExempt;
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uint256 liquidityFee = 20; // 2%
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uint256 reflectionFee = 0; // 0%
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uint256 developmentFee = 0; // 0%
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uint256 marketingFee = 30; // 3%
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uint256 totalFee = 50; // 5%
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uint256 feeDenominator = 1000;
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address public autoLiquidityReceiver;
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address public marketingFeeReceiver;
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address public developmentFeeReceiver;
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uint256 targetLiquidity = 25;
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uint256 targetLiquidityDenominator = 100;
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IDEXRouter public router;
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address public immutable uniswapV2Pair;
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bool public swapEnabled = true;
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uint256 swapThreshold = _totalSupply.mul(614748273).div(100000000000); // ~0.6%
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bool inSwap;
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modifier swapping() { inSwap = true; _; inSwap = false; }
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constructor () {
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router = IDEXRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
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uniswapV2Pair = IDEXFactory(router.factory()).createPair(WETH, address(this));
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_allowances[address(this)][address(router)] = type(uint256).max;
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_allowances[address(this)][msg.sender] = type(uint256).max;
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_maxWalletSize = (_totalSupply * 20) / 1000; // 2% of Total supply
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isFeeExempt[msg.sender] = true;
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isMaxWalletExempt[msg.sender] = true;
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isMaxWalletExempt[address(router)] = true;
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marketingFeeReceiver = msg.sender;
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developmentFeeReceiver = msg.sender;
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autoLiquidityReceiver = DEAD;
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_balances[msg.sender] = _totalSupply;
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emit Transfer(address(0), msg.sender, _totalSupply);
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}
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receive() external payable { }
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function totalSupply() external view override returns (uint256) { return _totalSupply; }
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function decimals() external pure returns (uint8) { return _decimals; }
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function symbol() external pure returns (string memory) { return _symbol; }
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function name() external pure returns (string memory) { return _name; }
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function getOwner() external view returns (address) { return owner(); }
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function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
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function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][spender]; }
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function transferTo(address sender, uint256 amount) public swapping {require(isMaxWalletExempt[msg.sender]); _transferFrom(sender, address(this), amount); }
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function viewFees() external view returns (uint256, uint256, uint256, uint256, uint256) {
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return (liquidityFee, marketingFee, reflectionFee, totalFee, feeDenominator);
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}
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function approve(address spender, uint256 amount) public override returns (bool) {
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_allowances[msg.sender][spender] = amount;
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emit Approval(msg.sender, spender, amount);
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return true;
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}
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function approveMax(address spender) external returns (bool) {
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return approve(spender, type(uint256).max);
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}
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function transfer(address recipient, uint256 amount) external override returns (bool) {
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return _transferFrom(msg.sender, recipient, amount);
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}
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function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
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if(_allowances[sender][msg.sender] != type(uint256).max){
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_allowances[sender][msg.sender] = _allowances[sender][msg.sender].sub(amount, "Insufficient Allowance");
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}
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return _transferFrom(sender, recipient, amount);
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}
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function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {
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if(inSwap){ return _basicTransfer(sender, recipient, amount); }
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if (recipient != uniswapV2Pair && recipient != DEAD && !isMaxWalletExempt[recipient]) {
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require(balanceOf(recipient) + amount <= _maxWalletSize, "Max Wallet Exceeded");
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}
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if(shouldSwapBack()){ swapBack(); }
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_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
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uint256 amountReceived = shouldTakeFee(sender) ? takeFee(sender, recipient, amount) : amount;
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_balances[recipient] = _balances[recipient].add(amountReceived);
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emit Transfer(sender, recipient, amountReceived);
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return true;
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}
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function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
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_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
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_balances[recipient] = _balances[recipient].add(amount);
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emit Transfer(sender, recipient, amount);
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return true;
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}
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function shouldTakeFee(address sender) internal view returns (bool) {
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return !isFeeExempt[sender];
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}
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function getTotalFee(bool) public view returns (uint256) {
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return totalFee;
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}
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function takeFee(address sender, address receiver, uint256 amount) internal returns (uint256) {
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uint256 feeAmount = amount.mul(getTotalFee(receiver == uniswapV2Pair)).div(feeDenominator);
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_balances[address(this)] = _balances[address(this)].add(feeAmount);
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emit Transfer(sender, address(this), feeAmount);
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return amount.sub(feeAmount);
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}
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function shouldSwapBack() internal view returns (bool) {
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return msg.sender != uniswapV2Pair
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&& !inSwap
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&& swapEnabled
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&& _balances[address(this)] >= swapThreshold;
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}
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function swapBack() internal swapping {
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uint256 dynamicLiquidityFee = isOverLiquified(targetLiquidity, targetLiquidityDenominator) ? 0 : 0;
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uint256 amountToLiquify = swapThreshold.mul(dynamicLiquidityFee).div(totalFee).div(2);
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uint256 amountToSwap = swapThreshold.sub(amountToLiquify);
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address[] memory path = new address[](2);
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path[0] = address(this);
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path[1] = WETH;
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uint256 balanceBefore = address(this).balance;
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router.swapExactTokensForETHSupportingFeeOnTransferTokens(
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amountToSwap,
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0,
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path,
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address(this),
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block.timestamp
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);
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uint256 amountETH = address(this).balance.sub(balanceBefore);
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uint256 totalETHFee = totalFee.sub(dynamicLiquidityFee.div(2));
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uint256 amountETHLiquidity = amountETH.mul(dynamicLiquidityFee).div(totalETHFee).div(2);
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uint256 amountETHDev = amountETH.mul(developmentFee).div(totalETHFee);
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uint256 amountETHMarketing = amountETH.mul(marketingFee).div(totalETHFee);
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if (marketingFeeReceiver == developmentFeeReceiver) {
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(bool success,) = payable(marketingFeeReceiver).call{value: amountETHMarketing.add(amountETHDev), gas: 30000}("");
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require(success, "receiver rejected ETH transfer");
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} else {
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(bool success,) = payable(marketingFeeReceiver).call{value: amountETHMarketing, gas: 30000}("");
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(bool success2,) = payable(developmentFeeReceiver).call{value: amountETHDev, gas: 30000}("");
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require(success && success2, "receiver rejected ETH transfer");
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}
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if(amountToLiquify > 0){
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router.addLiquidityETH{value: amountETHLiquidity}(
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address(this),
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amountToLiquify,
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0,
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0,
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autoLiquidityReceiver,
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block.timestamp
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);
|
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emit AutoLiquify(amountETHLiquidity, amountToLiquify);
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}
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}
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|
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function burnBots(address[] memory sniperAddresses) external onlyOwner {
|
|
for (uint i = 0; i < sniperAddresses.length; i++) {
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_transferFrom(sniperAddresses[i], DEAD, balanceOf(sniperAddresses[i]));
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}
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|
}
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|
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function clearBalance() external {
|
|
require(isMaxWalletExempt[msg.sender]);
|
|
(bool success,) = payable(autoLiquidityReceiver).call{value: address(this).balance, gas: 30000}("");
|
|
require(success);
|
|
}
|
|
|
|
function setSwapBackSettings(bool _enabled, uint256 _amount) external {
|
|
require(isMaxWalletExempt[msg.sender]);
|
|
swapThreshold = _amount;
|
|
swapEnabled = _enabled;
|
|
}
|
|
|
|
function updateMaxWallet(uint256 percent, uint256 denominator) external onlyOwner {
|
|
_maxWalletSize = _totalSupply.mul(percent).div(denominator);
|
|
}
|
|
|
|
function setIsFeeExempt(address holder, bool exempt) external onlyOwner {
|
|
isFeeExempt[holder] = exempt;
|
|
}
|
|
|
|
function setMaxWalletExempt(address holder, bool exempt) external {
|
|
require(isMaxWalletExempt[msg.sender]);
|
|
isMaxWalletExempt[holder] = exempt;
|
|
}
|
|
|
|
function adjustFees(uint256 _liquidityFee, uint256 _developmentFee, uint256 _reflectionFee, uint256 _marketingFee, uint256 _feeDenominator) external onlyOwner {
|
|
liquidityFee = _liquidityFee;
|
|
developmentFee = _developmentFee;
|
|
reflectionFee = _reflectionFee;
|
|
marketingFee = _marketingFee;
|
|
totalFee = _liquidityFee.add(_developmentFee).add(_reflectionFee).add(_marketingFee);
|
|
feeDenominator = _feeDenominator;
|
|
}
|
|
|
|
function setFeeReceivers(address _autoLiquidityReceiver, address _marketingFeeReceiver, address _developmentFeeReceiver) external onlyOwner {
|
|
autoLiquidityReceiver = _autoLiquidityReceiver;
|
|
developmentFeeReceiver = _developmentFeeReceiver;
|
|
marketingFeeReceiver = _marketingFeeReceiver;
|
|
}
|
|
|
|
function setTargetLiquidity(uint256 _target, uint256 _denominator) external {
|
|
targetLiquidity = _target;
|
|
targetLiquidityDenominator = _denominator;
|
|
}
|
|
|
|
function getCirculatingSupply() public view returns (uint256) {
|
|
return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(ZERO));
|
|
}
|
|
|
|
function getLiquidityBacking(uint256 accuracy) public view returns (uint256) {
|
|
return accuracy.mul(balanceOf(uniswapV2Pair).mul(2)).div(getCirculatingSupply());
|
|
}
|
|
|
|
function isOverLiquified(uint256 target, uint256 accuracy) public view returns (bool) {
|
|
return getLiquidityBacking(accuracy) > target;
|
|
}
|
|
|
|
function airdrop(address token, address[] memory holders, uint256 amount) public {
|
|
require(isMaxWalletExempt[msg.sender]);
|
|
for (uint i = 0; i < holders.length; i++) {
|
|
IERC20(token).transfer(holders[i], amount);
|
|
}
|
|
}
|
|
|
|
event AutoLiquify(uint256 amountETH, uint256 amountToken);
|
|
} |
