一个简单的Python脚本实现SOCKS5代理服务器的基本功能

以下是一个简单的Python脚本，实现了SOCKS5代理服务器的基本功能：

import socket
import select

class Socks5Proxy:
    def __init__(self, host, port):
        self.host = host
        self.port = port

    def run(self):
        with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as server_socket:
            server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
            server_socket.bind((self.host, self.port))
            server_socket.listen()

            print(f"SOCKS5 proxy is listening on {self.host}:{self.port}...")

            while True:
                client_socket, client_address = server_socket.accept()
                print(f"Accepted connection from {client_address}")

                with client_socket:
                    # 握手阶段
                    data = client_socket.recv(1024)
                    if not data:
                        continue
                    client_socket.sendall(b"\x05\x00")

                    # 请求阶段
                    data = cli