tcp_server.py

import socket


class TCPServer:
    def __init__(self, host="127.0.0.1", port=8888):
        self.host = host
        self.port = port
        self.socket = None

    def start(self):
        self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        self.socket.bind((self.host, self.port))
        self.socket.listen(5)
        print(f"Server listening on {self.host}:{self.port}")

        try:
            while True:
                conn, addr = self.socket.accept()
                print(f"Connection from {addr}")
                try:
                    data = conn.recv(1024)
                    response = self.handle_request(data)
                    conn.sendall(response)
                except Exception as e:
                    print(f"Error handling request: {e}")
                finally:
                    conn.close()
        except KeyboardInterrupt:
            print("Server shutting down")
            self.socket.close()

    def handle_request(self, data):
        raise NotImplementedError("Subclasses must implement handle_request")