在Python中为dovecot创建基于Unix套接字的认证服务器

import socket
import os

def handle_client(client_socket):
    # 接收客户端的认证请求并返回认证结果
    client_data = client_socket.recv(1024).decode()
    
    # 进行dovecot认证逻辑，比如查询用户信息、验证密码等
    
    # 认证成功
    if authenticated:
        response = "OK\n"
    else:
        response = "FAIL\n"
    
    client_socket.send(response.encode())
    client_socket.close()

def create_auth_server(socket_path):
    # 删除之前存在的套接字文件
    if os.path.exists(socket_path):
        os.remove(socket_path)
    
    # 创建Unix套接字并监听
    server_socket = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
    server_socket.bind(socket_path)
    server_socket.listen(5)
    
    print("Authentication server started. Listening on", socket_path)
    
    while True:
        # 接收客户端连接
        client_socket, _ = server_socket.accept()
        print("New client connected.")
        
        # 处理认证请求
        handle_client(client_socket)

# 使用示例
socket_path = '/path/to/socket/file.sock'
create_auth_server(socket_path)