1233 lines
54 KiB
Python
1233 lines
54 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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网络通信模块
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提供TCP通信、数据包打包/解析、队列管理等功能
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"""
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import json
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from math import e
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import struct
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from maix import time
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import hmac
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import hashlib
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import ujson
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import os
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import threading
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import socket
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import config
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from hardware import hardware_manager
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from power import get_bus_voltage, voltage_to_percent
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# from laser import laser_manager
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# from ota import ota_manager
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from logger_manager import logger_manager
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class NetworkManager:
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"""网络通信管理器（单例）"""
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_instance = None
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def __new__(cls):
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if cls._instance is None:
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cls._instance = super(NetworkManager, cls).__new__(cls)
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cls._instance._initialized = False
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return cls._instance
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def __init__(self):
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if self._initialized:
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return
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# 私有状态
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self._tcp_connected = False
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self._high_send_queue = []
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self._normal_send_queue = []
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self._queue_lock = threading.Lock()
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self._uart4g_lock = threading.Lock()
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self._device_id = None
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self._password = None
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self._raw_line_data = []
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self._manual_trigger_flag = False
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# WiFi 相关状态
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self._network_type = None # "wifi" 或 "4g" 或 None
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self._wifi_connected = False
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self._wifi_ip = None
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self._wifi_socket = None
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self._wifi_socket_lock = threading.Lock()
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self._prefer_wifi = True # 是否优先使用WiFi
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self._wifi_recv_buffer = b"" # WiFi接收缓冲区
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self._initialized = True
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# 导入 archery_netcore 模块，并检查是否存在 parse_packet 和 make_packet 函数
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try:
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import archery_netcore as _netcore
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self._netcore = _netcore
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if hasattr(self._netcore, "parse_packet") and hasattr(self._netcore, "make_packet") and hasattr(self._netcore, "actions_for_inner_cmd"):
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print("[NET] archery_netcore found")
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else:
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print("[NET] archery_netcore not found parse_packet or make_packet")
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exit(1)
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except Exception:
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print("[NET] import archery_netcore failed")
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exit(1)
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# 服务器相关
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self._server_ip = self._netcore.get_config().get("SERVER_IP")
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self._server_port = self._netcore.get_config().get("SERVER_PORT")
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# ==================== 状态访问（只读属性）====================
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@property
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def logger(self):
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"""获取 logger 对象"""
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return logger_manager.logger
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@property
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def tcp_connected(self):
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"""TCP连接状态"""
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return self._tcp_connected
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@property
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def device_id(self):
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"""设备ID"""
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return self._device_id
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@property
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def password(self):
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"""密码"""
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return self._password
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@property
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def has_pending_messages(self):
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"""是否有待发送消息"""
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with self._queue_lock:
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return len(self._high_send_queue) > 0 or len(self._normal_send_queue) > 0
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@property
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def manual_trigger_flag(self):
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"""手动触发标志"""
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return self._manual_trigger_flag
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@property
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def network_type(self):
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"""当前使用的网络类型（"wifi" 或 "4g"）"""
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return self._network_type
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@property
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def wifi_connected(self):
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"""WiFi是否已连接"""
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return self._wifi_connected
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@property
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def wifi_ip(self):
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"""WiFi IP地址"""
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return self._wifi_ip
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# ==================== 内部状态管理方法 ====================
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def set_manual_trigger(self, value=True):
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"""设置手动触发标志（公共方法）"""
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self._manual_trigger_flag = value
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def clear_manual_trigger(self):
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"""清除手动触发标志（公共方法）"""
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self._manual_trigger_flag = False
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def _set_tcp_connected(self, connected):
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"""设置TCP连接状态（内部方法）"""
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self._tcp_connected = connected
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def _set_device_info(self, device_id, password):
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"""设置设备信息（内部方法）"""
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self._device_id = device_id
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self._password = password
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def _enqueue(self, item, high=False):
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"""线程安全地加入队列（内部方法）"""
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with self._queue_lock:
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if high:
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self._high_send_queue.append(item)
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else:
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self._normal_send_queue.append(item)
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def _dequeue(self):
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"""线程安全地从队列取出（内部方法）"""
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with self._queue_lock:
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if self._high_send_queue:
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return self._high_send_queue.pop(0)
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elif self._normal_send_queue:
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return self._normal_send_queue.pop(0)
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return None
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def _set_raw_line_data(self, data):
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"""设置原始行数据（内部方法）"""
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self._raw_line_data = data
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def _get_raw_line_data(self):
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"""获取原始行数据（内部方法）"""
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return self._raw_line_data
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def get_uart_lock(self):
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"""获取UART锁（用于with语句）"""
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return self._uart4g_lock
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def get_queue_lock(self):
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"""获取队列锁（用于with语句）"""
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return self._queue_lock
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# ==================== 业务方法 ====================
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def read_device_id(self):
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"""从 /device_key 文件读取设备唯一 ID，失败则使用默认值"""
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try:
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with open("/device_key", "r") as f:
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device_id = f.read().strip()
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if device_id:
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self.logger.debug(f"[INFO] 从 /device_key 读取到 DEVICE_ID: {device_id}")
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# 设置内部状态
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self._device_id = device_id
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self._password = device_id + "."
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return device_id
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except Exception as e:
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self.logger.error(f"[ERROR] 无法读取 /device_key: {e}")
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# 使用默认值
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default_id = "DEFAULT_DEVICE_ID"
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self._device_id = default_id
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self._password = default_id + "."
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return default_id
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# ==================== WiFi 管理方法 ====================
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def is_wifi_connected(self):
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"""检查WiFi是否已连接"""
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# 优先用 MaixPy network（如果可用）
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try:
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from maix import network
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wlan = network.WLAN(network.TYPE_WIFI)
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if wlan.isconnected():
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self._wifi_connected = True
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return True
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except:
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pass
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# 兜底：看系统 wlan0 有没有 IP
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try:
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ip = os.popen("ifconfig wlan0 2>/dev/null | grep 'inet ' | awk '{print $2}'").read().strip()
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if ip:
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self._wifi_connected = True
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self._wifi_ip = ip
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return True
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except:
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pass
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self._wifi_connected = False
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return False
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def connect_wifi(self, ssid, password):
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"""
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连接 Wi-Fi 并将凭证持久化保存到 /boot/ 目录
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Returns:
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(ip, error): IP地址和错误信息（成功时error为None）
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"""
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# 配置文件路径定义
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conf_path = "/etc/wpa_supplicant.conf" # wpa_supplicant配置文件路径
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ssid_file = "/boot/wifi.ssid" # 用于保存SSID的文件路径
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pass_file = "/boot/wifi.pass" # 用于保存密码的文件路径
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try:
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# 生成 wpa_supplicant 配置
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net_conf = os.popen(f'wpa_passphrase "{ssid}" "{password}"').read() # 调用系统命令生成配置
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if "network={" not in net_conf: # 检查配置是否生成成功
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return None, "Failed to generate wpa config"
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# 写入运行时配置
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with open(conf_path, "w") as f: # 打开配置文件准备写入
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f.write("ctrl_interface=/var/run/wpa_supplicant\n") # 设置控制接口路径
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f.write("update_config=1\n\n") # 允许更新配置
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f.write(net_conf) # 写入网络配置
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# 持久化保存 SSID/PASS
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with open(ssid_file, "w") as f: # 打开SSID文件准备写入
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f.write(ssid.strip()) # 写入SSID（去除首尾空格）
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with open(pass_file, "w") as f: # 打开密码文件准备写入
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f.write(password.strip()) # 写入密码（去除首尾空格）
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# 重启 Wi-Fi 服务
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os.system("/etc/init.d/S30wifi restart") # 执行WiFi服务重启命令
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# 等待获取 IP
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import time as std_time # 导入time模块并重命名为std_time
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for _ in range(50): # 最多等待50秒
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ip = os.popen("ifconfig wlan0 2>/dev/null | grep 'inet ' | awk '{print $2}'").read().strip() # 获取wlan0的IP地址
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if ip: # 如果获取到IP地址
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self._wifi_connected = True # 设置WiFi连接状态为已连接
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self._wifi_ip = ip # 保存IP地址
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self.logger.info(f"[WIFI] 已连接，IP: {ip}") # 记录连接成功日志
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return ip, None
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std_time.sleep(1) # 每次循环等待1秒
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return None, "Timeout: No IP obtained" # 超时未获取到IP
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except Exception as e: # 捕获所有异常
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self.logger.error(f"[WIFI] 连接失败: {e}") # 记录错误日志
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return None, f"Exception: {str(e)}" # 返回异常信息
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def is_server_reachable(self, host, port=80, timeout=5):
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"""检查目标主机端口是否可达（用于网络检测）"""
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try:
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addr_info = socket.getaddrinfo(host, port)[0]
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s = socket.socket(addr_info[0], addr_info[1], addr_info[2])
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s.settimeout(timeout)
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s.connect(addr_info[-1])
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s.close()
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return True
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except Exception as e:
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self.logger.warning(f"[NET] 无法连接 {host}:{port} - {e}")
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return False
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# ==================== 网络选择策略 ====================
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def select_network(self, prefer_wifi=None):
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"""
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自动选择网络（WiFi优先）
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Args:
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prefer_wifi: 是否优先使用WiFi（None表示使用默认策略）
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Returns:
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"wifi" 或 "4g" 或 None（无可用网络）
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"""
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if prefer_wifi is None:
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prefer_wifi = self._prefer_wifi
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# 策略1：如果指定优先WiFi，且WiFi可用，使用WiFi
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if prefer_wifi and self.is_wifi_connected():
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# 检查WiFi是否能连接到服务器
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if self.is_server_reachable(self._server_ip, self._server_port, timeout=3):
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self._network_type = "wifi"
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self.logger.info(f"[NET] 选择WiFi网络，IP: {self._wifi_ip}")
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import os
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os.environ["TZ"] = "Asia/Shanghai"
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os.system("ntpdate pool.ntp.org")
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return "wifi"
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else:
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self.logger.warning("[NET] WiFi已连接但无法访问服务器，尝试4G")
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# 策略2：如果WiFi可用，使用WiFi
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if self.is_wifi_connected():
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if self.is_server_reachable(self._server_ip, self._server_port, timeout=3):
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self._network_type = "wifi"
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self.logger.info(f"[NET] 选择WiFi网络，IP: {self._wifi_ip}")
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return "wifi"
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# 策略3：回退到4G
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self.logger.info("[NET] WiFi不可用或无法连接服务器，使用4G网络")
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self._network_type = "4g"
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return "4g"
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def safe_enqueue(self, data_dict, msg_type=2, high=False):
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"""线程安全地将消息加入队列（公共方法）"""
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self._enqueue((msg_type, data_dict), high)
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def make_packet(self, msg_type: int, body_dict: dict) -> bytes:
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"""打包 TCP 数据包：头部（长度+类型+校验）+ JSON 正文"""
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body = json.dumps(body_dict).encode()
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body_len = len(body)
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checksum = body_len + msg_type
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header = struct.pack(">III", body_len, msg_type, checksum)
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return header + body
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def parse_packet(self, data: bytes):
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"""解析 TCP 数据包，返回 (类型, 正文字典)"""
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if len(data) < 12:
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return None, None
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body_len, msg_type, checksum = struct.unpack(">III", data[:12])
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expected_len = 12 + body_len
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# 防御性检查：如果 data 比预期长，说明可能有粘包
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if len(data) > expected_len:
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self.logger.warning(
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f"[TCP] parse_packet: data length ({len(data)}) > expected ({expected_len}), "
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f"possible packet concatenation. body_len={body_len}, msg_type={msg_type}"
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)
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# 只解析第一个包，忽略多余数据（或者可以返回剩余部分）
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# data = data[:expected_len]
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# TODO： 是否需要解析剩余部分？
|
||
|
||
# 如果 data 比预期短，说明包不完整（半包）
|
||
if len(data) < expected_len:
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||
self.logger.warning(
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f"[TCP] parse_packet: data length ({len(data)}) < expected ({expected_len}), "
|
||
f"incomplete packet. body_len={body_len}, msg_type={msg_type}"
|
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)
|
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return None, None
|
||
|
||
body = data[12:12 + body_len]
|
||
try:
|
||
return msg_type, json.loads(body.decode())
|
||
except:
|
||
return msg_type, {"raw": body.decode(errors="ignore")}
|
||
|
||
def connect_server(self):
|
||
"""
|
||
连接到服务器（自动选择WiFi或4G）
|
||
|
||
Returns:
|
||
bool: 是否连接成功
|
||
"""
|
||
if self._tcp_connected:
|
||
# 检查当前连接是否仍然有效
|
||
if self._network_type == "wifi":
|
||
return self._check_wifi_connection()
|
||
elif self._network_type == "4g":
|
||
return True # 4G连接状态由AT命令维护
|
||
return False
|
||
|
||
# 自动选择网络
|
||
network_type = self.select_network()
|
||
if not network_type:
|
||
return False
|
||
|
||
self.logger.info(f"连接到服务器,使用{network_type.upper()}...")
|
||
|
||
# 根据网络类型建立TCP连接
|
||
if network_type == "wifi":
|
||
return self._connect_tcp_via_wifi()
|
||
elif network_type == "4g":
|
||
return self._connect_tcp_via_4g()
|
||
return False
|
||
|
||
def _connect_tcp_via_wifi(self):
|
||
"""通过WiFi建立TCP连接"""
|
||
try:
|
||
# 创建TCP socket
|
||
self._wifi_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
||
self._wifi_socket.settimeout(5.0) # 5秒超时
|
||
|
||
# 连接到服务器
|
||
addr_info = socket.getaddrinfo(config.SERVER_IP, config.SERVER_PORT,
|
||
socket.AF_INET, socket.SOCK_STREAM)[0]
|
||
self._wifi_socket.connect(addr_info[-1])
|
||
|
||
# 设置非阻塞模式（用于接收数据）
|
||
self._wifi_socket.setblocking(False)
|
||
|
||
self._tcp_connected = True
|
||
self.logger.info("[WIFI-TCP] TCP连接已建立")
|
||
return True
|
||
|
||
except Exception as e:
|
||
self.logger.error(f"[WIFI-TCP] 连接失败: {e}")
|
||
|
||
if self._wifi_socket:
|
||
try:
|
||
self._wifi_socket.close()
|
||
except:
|
||
pass
|
||
self._wifi_socket = None
|
||
|
||
return False
|
||
|
||
def _connect_tcp_via_4g(self):
|
||
"""通过4G模块建立TCP连接（支持按手册绑定 SSL）"""
|
||
link_id = getattr(config, "TCP_LINK_ID", 0)
|
||
use_ssl = getattr(config, "USE_TCP_SSL", False)
|
||
|
||
host = self._server_ip
|
||
port = getattr(config, "TCP_SSL_PORT", 443) if use_ssl else config.SERVER_PORT
|
||
tail = getattr(config, "MIPOPEN_TAIL", "")
|
||
with self.get_uart_lock():
|
||
resp = hardware_manager.at_client.send(f"AT+MIPCLOSE={link_id}", "OK", 1000)
|
||
self.logger.info(f"[4G-TCP] AT+MIPCLOSE={link_id} response: {resp}")
|
||
|
||
if use_ssl:
|
||
ok = self._configure_ssl_before_connect(link_id)
|
||
if not ok:
|
||
return False
|
||
|
||
# 按手册：AT+MIPOPEN=1,"TCP","host",443,,0
|
||
# cmd = f'AT+MIPOPEN={link_id},"TCP","{host}",{port}{tail}'
|
||
cmd = f'AT+MIPOPEN={link_id},"TCP","{host}",{port}'
|
||
res = hardware_manager.at_client.send(cmd, "+MIPOPEN", 8000)
|
||
self.logger.info(f"[4G-TCP] {cmd} response: {res}")
|
||
if f"+MIPOPEN: {link_id},0" in res:
|
||
self._tcp_connected = True
|
||
return True
|
||
return False
|
||
|
||
def _check_wifi_connection(self):
|
||
"""检查WiFi TCP连接是否仍然有效"""
|
||
if not self._wifi_socket:
|
||
return False
|
||
try:
|
||
# 尝试发送0字节来检测连接状态
|
||
self._wifi_socket.send(b"", socket.MSG_DONTWAIT)
|
||
return True
|
||
except:
|
||
# socket已断开
|
||
try:
|
||
self._wifi_socket.close()
|
||
except:
|
||
pass
|
||
self._wifi_socket = None
|
||
self._tcp_connected = False
|
||
return False
|
||
|
||
def disconnect_server(self):
|
||
"""断开TCP连接"""
|
||
if self._tcp_connected:
|
||
self.logger.info("与服务器断开链接")
|
||
|
||
if self._network_type == "wifi":
|
||
self._disconnect_tcp_via_wifi()
|
||
elif self._network_type == "4g":
|
||
self._disconnect_tcp_via_4g()
|
||
|
||
self._tcp_connected = False
|
||
self._network_type = None
|
||
|
||
def _disconnect_tcp_via_wifi(self):
|
||
"""断开WiFi TCP连接"""
|
||
with self._wifi_socket_lock:
|
||
if self._wifi_socket:
|
||
try:
|
||
self._wifi_socket.close()
|
||
except:
|
||
pass
|
||
self._wifi_socket = None
|
||
|
||
def _disconnect_tcp_via_4g(self):
|
||
link_id = getattr(config, "TCP_LINK_ID", 0)
|
||
with self.get_uart_lock():
|
||
hardware_manager.at_client.send(f"AT+MIPCLOSE={link_id}", "OK", 1000)
|
||
|
||
|
||
def tcp_send_raw(self, data: bytes, max_retries=2) -> bool:
|
||
"""
|
||
统一的TCP发送接口（自动选择WiFi或4G）
|
||
|
||
Args:
|
||
data: 要发送的数据
|
||
max_retries: 最大重试次数
|
||
|
||
Returns:
|
||
bool: 是否发送成功
|
||
"""
|
||
if not self._tcp_connected:
|
||
return False
|
||
|
||
# 根据网络类型选择发送方式
|
||
if self._network_type == "wifi":
|
||
return self._tcp_send_raw_via_wifi(data, max_retries)
|
||
elif self._network_type == "4g":
|
||
return self._tcp_send_raw_via_4g(data, max_retries)
|
||
else:
|
||
self.logger.error("[NET] 未选择网络类型，无法发送数据")
|
||
return False
|
||
|
||
def _tcp_send_raw_via_wifi(self, data: bytes, max_retries=2) -> bool:
|
||
"""通过WiFi socket发送TCP数据"""
|
||
if not self._wifi_socket:
|
||
return False
|
||
|
||
with self._wifi_socket_lock:
|
||
for attempt in range(max_retries):
|
||
try:
|
||
# 标准socket发送
|
||
total_sent = 0
|
||
while total_sent < len(data):
|
||
sent = self._wifi_socket.send(data[total_sent:])
|
||
if sent == 0:
|
||
# socket连接已断开
|
||
self.logger.warning(f"[WIFI-TCP] 发送失败，socket已断开（尝试 {attempt+1}/{max_retries}）")
|
||
break
|
||
total_sent += sent
|
||
|
||
if total_sent == len(data):
|
||
return True
|
||
|
||
# 发送不完整，重试
|
||
time.sleep_ms(50)
|
||
|
||
except OSError as e:
|
||
self.logger.error(f"[WIFI-TCP] 发送异常: {e}（尝试 {attempt+1}/{max_retries}）")
|
||
time.sleep_ms(50)
|
||
except Exception as e:
|
||
self.logger.error(f"[WIFI-TCP] 未知错误: {e}（尝试 {attempt+1}/{max_retries}）")
|
||
time.sleep_ms(50)
|
||
|
||
return False
|
||
|
||
def _tcp_send_raw_via_4g(self, data: bytes, max_retries=2) -> bool:
|
||
link_id = getattr(config, "TCP_LINK_ID", 0)
|
||
with self.get_uart_lock():
|
||
for _ in range(max_retries):
|
||
cmd = f'AT+MIPSEND={link_id},{len(data)}'
|
||
if ">" not in hardware_manager.at_client.send(cmd, ">", 2000):
|
||
time.sleep_ms(50)
|
||
continue
|
||
|
||
total = 0
|
||
while total < len(data):
|
||
n = hardware_manager.uart4g.write(data[total:])
|
||
if not n or n < 0:
|
||
time.sleep_ms(1)
|
||
continue
|
||
total += n
|
||
|
||
hardware_manager.uart4g.write(b"\x1A")
|
||
r = hardware_manager.at_client.send("", "OK", 8000)
|
||
if ("SEND OK" in r) or ("OK" in r) or ("+MIPSEND" in r):
|
||
return True
|
||
time.sleep_ms(50)
|
||
return False
|
||
|
||
def _configure_ssl_before_connect(self, link_id: int) -> bool:
|
||
"""按手册：MSSLCFG(auth) -> (可选) MSSLCERTWR -> MSSLCFG(cert) -> MIPCFG(ssl)"""
|
||
ssl_id = getattr(config, "SSL_ID", 1)
|
||
auth_mode = getattr(config, "SSL_AUTH_MODE", 1)
|
||
verify_mode = getattr(config, "SSL_VERIFY_MODE", 0)
|
||
|
||
# 1) 配置认证方式
|
||
# r = hardware_manager.at_client.send(f'AT+MSSLCFG="auth",{ssl_id},{auth_mode}', "OK", 3000)
|
||
r = hardware_manager.at_client.send(f'AT+MSSLCFG="auth",{ssl_id},0', "OK", 3000)
|
||
self.logger.info(f"[4G-TCP] AT+MSSLCFG=\"auth\",{ssl_id},0 response: {r}")
|
||
if "OK" not in r:
|
||
return False
|
||
|
||
# 2) 写入根证书（只有 verify_mode=1 才需要）
|
||
# if verify_mode == 1:
|
||
if False:
|
||
cert_filename = getattr(config, "SSL_CERT_FILENAME", None)
|
||
cert_path = getattr(config, "SSL_CERT_PATH", None)
|
||
if not cert_filename or not cert_path:
|
||
return False
|
||
|
||
# 读取证书文件（设备侧路径）
|
||
with open(cert_path, "rb") as f:
|
||
cert_data = f.read()
|
||
|
||
# 按手册：AT+MSSLCERTWR="file",0,size -> 等待 ">" -> 写入证书内容 -> 等 OK
|
||
r = hardware_manager.at_client.send(f'AT+MSSLCERTWR="{cert_filename}",0,{len(cert_data)}', ">", 5000)
|
||
if ">" not in r:
|
||
return False
|
||
|
||
# 直接写原始字节，不要额外拼 \r\n
|
||
hardware_manager.uart4g.write(cert_data)
|
||
|
||
r = hardware_manager.at_client.send("", "OK", 8000)
|
||
if "OK" not in r:
|
||
return False
|
||
|
||
# 3) 引用根证书
|
||
r = hardware_manager.at_client.send(f'AT+MSSLCFG="cert",{ssl_id},"{cert_filename}"', "OK", 3000)
|
||
if "OK" not in r:
|
||
return False
|
||
|
||
# 4) 绑定 TCP 通道到 ssl_id，并启用
|
||
r = hardware_manager.at_client.send(f'AT+MIPCFG="ssl",{link_id},{ssl_id},1', "OK", 3000)
|
||
self.logger.info(f"[4G-TCP] AT+MIPCFG=\"ssl\",{link_id},{ssl_id},1 response: {r}")
|
||
if "OK" not in r:
|
||
return False
|
||
|
||
return True
|
||
|
||
def receive_tcp_data_via_wifi(self, timeout_ms=100):
|
||
"""
|
||
通过WiFi接收TCP数据
|
||
|
||
Args:
|
||
timeout_ms: 超时时间（毫秒）
|
||
|
||
Returns:
|
||
bytes: 接收到的数据，如果没有数据则返回 b""
|
||
"""
|
||
if not self._wifi_socket:
|
||
return b""
|
||
|
||
try:
|
||
# 设置接收超时
|
||
self._wifi_socket.settimeout(timeout_ms / 1000.0)
|
||
|
||
# 尝试接收数据
|
||
data = self._wifi_socket.recv(4096) # 每次最多接收4KB
|
||
return data
|
||
|
||
except socket.timeout:
|
||
# 超时是正常的，表示没有数据
|
||
return b""
|
||
except OSError as e:
|
||
# socket错误（连接断开等）
|
||
self.logger.warning(f"[WIFI-TCP] 接收数据失败: {e}")
|
||
|
||
# 关闭socket
|
||
try:
|
||
self._wifi_socket.close()
|
||
except:
|
||
pass
|
||
self._wifi_socket = None
|
||
self._tcp_connected = False
|
||
|
||
return b""
|
||
except Exception as e:
|
||
self.logger.error(f"[WIFI-TCP] 接收数据异常: {e}")
|
||
return b""
|
||
|
||
def _upload_log_file(self, upload_url, wifi_ssid=None, wifi_password=None):
|
||
"""上传日志文件到指定URL
|
||
|
||
Args:
|
||
upload_url: 上传目标URL，例如 "https://example.com/upload/"
|
||
wifi_ssid: WiFi SSID（可选，如果未连接WiFi则尝试连接）
|
||
wifi_password: WiFi 密码（可选）
|
||
|
||
Note:
|
||
该功能仅在 WiFi 连接时可用，4G 网络暂不支持文件上传
|
||
"""
|
||
import requests
|
||
import shutil
|
||
from datetime import datetime
|
||
|
||
try:
|
||
# 检查 WiFi 连接状态，如果未连接则尝试连接
|
||
if not self.is_wifi_connected():
|
||
if wifi_ssid and wifi_password:
|
||
self.logger.info(f"[LOG_UPLOAD] WiFi 未连接，尝试连接 WiFi: {wifi_ssid}")
|
||
self.safe_enqueue({"result": "log_upload_connecting_wifi", "ssid": wifi_ssid}, 2)
|
||
|
||
ip, error = self.connect_wifi(wifi_ssid, wifi_password)
|
||
if error:
|
||
self.logger.error(f"[LOG_UPLOAD] WiFi 连接失败: {error}")
|
||
self.safe_enqueue({
|
||
"result": "log_upload_failed",
|
||
"reason": "wifi_connect_failed",
|
||
"detail": error
|
||
}, 2)
|
||
return
|
||
|
||
self.logger.info(f"[LOG_UPLOAD] WiFi 连接成功，IP: {ip}")
|
||
else:
|
||
self.logger.warning("[LOG_UPLOAD] WiFi 未连接且未提供 WiFi 凭证，无法上传日志")
|
||
self.safe_enqueue({
|
||
"result": "log_upload_failed",
|
||
"reason": "wifi_not_connected",
|
||
"detail": "WiFi not connected and no credentials provided"
|
||
}, 2)
|
||
return
|
||
else:
|
||
self.logger.info("[LOG_UPLOAD] WiFi 已连接，跳过连接步骤")
|
||
|
||
self.logger.info(f"[LOG_UPLOAD] 开始上传日志文件...")
|
||
|
||
# 获取日志文件路径
|
||
log_file_path = config.LOG_FILE # /maixapp/apps/t11/app.log
|
||
|
||
if not os.path.exists(log_file_path):
|
||
self.logger.error(f"[LOG_UPLOAD] 日志文件不存在: {log_file_path}")
|
||
self.safe_enqueue({"result": "log_upload_failed", "reason": "log_file_not_found"}, 2)
|
||
return
|
||
|
||
# 生成带时间戳的文件名
|
||
# 格式: app_20260131_143025_d19566161359c372.log
|
||
timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
|
||
device_id = self._device_id or "unknown"
|
||
new_filename = f"app_{timestamp}_{device_id}.log"
|
||
|
||
# 创建临时文件（带时间戳的名字）
|
||
temp_dir = "/tmp"
|
||
temp_file_path = os.path.join(temp_dir, new_filename)
|
||
|
||
# 复制日志文件到临时位置
|
||
shutil.copy2(log_file_path, temp_file_path)
|
||
self.logger.info(f"[LOG_UPLOAD] 日志文件已复制到: {temp_file_path}")
|
||
|
||
# 使用 multipart/form-data 上传文件
|
||
with open(temp_file_path, 'rb') as f:
|
||
files = {'file': (new_filename, f, 'text/plain')}
|
||
|
||
# 添加额外的头部信息
|
||
headers = {
|
||
'User-Agent': 'Archery-Device/1.0',
|
||
'X-Device-ID': device_id,
|
||
}
|
||
|
||
# 如果是 ngrok-free.dev，添加绕过警告页面的头
|
||
if 'ngrok-free.dev' in upload_url or 'ngrok.io' in upload_url:
|
||
headers['ngrok-skip-browser-warning'] = 'true'
|
||
|
||
self.logger.info(f"[LOG_UPLOAD] 正在上传到: {upload_url}")
|
||
|
||
# 禁用 SSL 警告（用于自签名证书或 SSL 兼容性问题）
|
||
import urllib3
|
||
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
|
||
|
||
# 发送请求，verify=False 跳过 SSL 证书验证（解决 MaixCAM SSL 兼容性问题）
|
||
response = requests.post(upload_url, files=files, headers=headers, timeout=60, verify=False)
|
||
|
||
if response.status_code in (200, 201, 204):
|
||
self.logger.info(f"[LOG_UPLOAD] 上传成功! 状态码: {response.status_code}")
|
||
self.safe_enqueue({
|
||
"result": "log_upload_ok",
|
||
"filename": new_filename,
|
||
"status_code": response.status_code
|
||
}, 2)
|
||
else:
|
||
self.logger.error(f"[LOG_UPLOAD] 上传失败! 状态码: {response.status_code}, 响应: {response.text[:200]}")
|
||
self.safe_enqueue({
|
||
"result": "log_upload_failed",
|
||
"reason": f"http_{response.status_code}",
|
||
"detail": response.text[:100]
|
||
}, 2)
|
||
|
||
# 清理临时文件
|
||
try:
|
||
os.remove(temp_file_path)
|
||
self.logger.debug(f"[LOG_UPLOAD] 临时文件已删除: {temp_file_path}")
|
||
except Exception as e:
|
||
self.logger.warning(f"[LOG_UPLOAD] 删除临时文件失败: {e}")
|
||
|
||
except requests.exceptions.Timeout:
|
||
self.logger.error("[LOG_UPLOAD] 上传超时")
|
||
self.safe_enqueue({"result": "log_upload_failed", "reason": "timeout"}, 2)
|
||
except requests.exceptions.ConnectionError as e:
|
||
self.logger.error(f"[LOG_UPLOAD] 连接失败: {e}")
|
||
self.safe_enqueue({"result": "log_upload_failed", "reason": "connection_error"}, 2)
|
||
except Exception as e:
|
||
self.logger.error(f"[LOG_UPLOAD] 上传异常: {e}")
|
||
self.safe_enqueue({"result": "log_upload_failed", "reason": str(e)[:100]}, 2)
|
||
|
||
def generate_token(self, device_id):
|
||
"""生成用于 HTTP 接口鉴权的 Token（HMAC-SHA256）"""
|
||
SALT = "shootMessageFire"
|
||
SALT2 = "shoot"
|
||
return "Arrow_" + hmac.new((SALT + device_id).encode(), SALT2.encode(), hashlib.sha256).hexdigest()
|
||
|
||
def tcp_main(self):
|
||
"""TCP 主通信循环：登录、心跳、处理指令、发送数据"""
|
||
import _thread
|
||
from maix import camera
|
||
|
||
self.logger.info("[NET] TCP主线程启动")
|
||
|
||
send_hartbeat_fail_count = 0
|
||
last_charging_check = 0
|
||
CHARGING_CHECK_INTERVAL = 5000 # 5秒检查一次充电状态
|
||
|
||
while True:
|
||
try:
|
||
# 检查充电状态（每5秒检查一次）
|
||
current_time = time.ticks_ms()
|
||
if current_time - last_charging_check > CHARGING_CHECK_INTERVAL:
|
||
last_charging_check = current_time
|
||
|
||
# OTA 期间不要 connect/登录/心跳/发送
|
||
try:
|
||
from ota_manager import ota_manager
|
||
if ota_manager.ota_in_progress:
|
||
time.sleep_ms(200)
|
||
continue
|
||
except Exception as e:
|
||
self.logger.error(f"[NET] OTA检查异常: {e}")
|
||
time.sleep_ms(200)
|
||
continue
|
||
|
||
if not self.connect_server():
|
||
time.sleep_ms(5000)
|
||
continue
|
||
|
||
# 发送登录包
|
||
vol_val = get_bus_voltage()
|
||
login_data = {
|
||
"deviceId": self.device_id,
|
||
"password": self.password,
|
||
"version": config.APP_VERSION,
|
||
"vol": vol_val,
|
||
"vol_per": voltage_to_percent(vol_val)
|
||
}
|
||
# if not self.tcp_send_raw(self.make_packet(1, login_data)):
|
||
if not self.tcp_send_raw(self._netcore.make_packet(1, login_data)):
|
||
self._tcp_connected = False
|
||
time.sleep_ms(2000)
|
||
continue
|
||
|
||
self.logger.info("➡️ 登录包已发送，等待确认...")
|
||
logged_in = False
|
||
pending_cleared = False
|
||
last_heartbeat_ack_time = time.ticks_ms()
|
||
last_heartbeat_send_time = time.ticks_ms()
|
||
|
||
while True:
|
||
# OTA 期间暂停 TCP 活动
|
||
try:
|
||
from ota_manager import ota_manager
|
||
if ota_manager.ota_in_progress:
|
||
time.sleep_ms(200)
|
||
continue
|
||
except Exception as e:
|
||
self.logger.error(f"[NET] OTA检查异常: {e}")
|
||
time.sleep_ms(200)
|
||
continue
|
||
|
||
# 接收数据（根据网络类型选择接收方式）
|
||
item = None
|
||
if self._network_type == "wifi":
|
||
# WiFi接收数据
|
||
data = self.receive_tcp_data_via_wifi(timeout_ms=50)
|
||
if data:
|
||
# 将数据添加到缓冲区
|
||
self._wifi_recv_buffer += data
|
||
|
||
# 尝试从缓冲区解析完整的数据包
|
||
while len(self._wifi_recv_buffer) >= 12: # 至少需要12字节的头部
|
||
# 解析头部
|
||
try:
|
||
body_len, msg_type, checksum = struct.unpack(">III", self._wifi_recv_buffer[:12])
|
||
total_len = 12 + body_len
|
||
|
||
if len(self._wifi_recv_buffer) >= total_len:
|
||
# 有完整的数据包
|
||
payload = self._wifi_recv_buffer[:total_len]
|
||
self._wifi_recv_buffer = self._wifi_recv_buffer[total_len:]
|
||
item = (0, payload) # link_id=0 for WiFi
|
||
break
|
||
else:
|
||
# 数据包不完整，等待更多数据
|
||
break
|
||
except:
|
||
# 解析失败，清空缓冲区
|
||
self._wifi_recv_buffer = b""
|
||
break
|
||
elif self._network_type == "4g":
|
||
# 4G接收数据
|
||
item = hardware_manager.at_client.pop_tcp_payload()
|
||
|
||
if item:
|
||
if isinstance(item, tuple) and len(item) == 2:
|
||
link_id, payload = item
|
||
else:
|
||
link_id, payload = 0, item
|
||
|
||
if not logged_in:
|
||
try:
|
||
self.logger.debug(f"[TCP] rx link={link_id} len={len(payload)} head={payload[:12].hex()}")
|
||
except:
|
||
pass
|
||
|
||
# msg_type, body = self.parse_packet(payload)
|
||
msg_type, body = self._netcore.parse_packet(payload)
|
||
|
||
# 处理登录响应
|
||
if not logged_in and msg_type == 1:
|
||
if body and body.get("cmd") == 1 and body.get("data") == "登录成功":
|
||
logged_in = True
|
||
last_heartbeat_ack_time = time.ticks_ms()
|
||
self.logger.info("登录成功")
|
||
|
||
# 检查 ota_pending.json
|
||
try:
|
||
pending_path = f"{config.APP_DIR}/ota_pending.json"
|
||
if os.path.exists(pending_path):
|
||
try:
|
||
with open(pending_path, "r", encoding="utf-8") as f:
|
||
pending_obj = json.load(f)
|
||
except:
|
||
pending_obj = {}
|
||
self.safe_enqueue({"result": "ota_ok", "url": pending_obj.get("url", "")}, 2)
|
||
self.logger.info("[OTA] 已上报 ota_ok，等待心跳确认后删除 pending")
|
||
except Exception as e:
|
||
self.logger.error(f"[OTA] ota_ok 上报失败: {e}")
|
||
else:
|
||
break
|
||
|
||
# 处理心跳 ACK
|
||
elif logged_in and msg_type == 4:
|
||
last_heartbeat_ack_time = time.ticks_ms()
|
||
self.logger.debug("✅ 收到心跳确认")
|
||
|
||
# 处理命令40（分片下载）
|
||
elif logged_in and msg_type == 40:
|
||
if isinstance(body, dict):
|
||
t = body.get('t', 0)
|
||
v = body.get('v')
|
||
# 如果是第一个分片，清空之前的缓存
|
||
if len(self._raw_line_data) == 0 or (len(self._raw_line_data) > 0 and self._raw_line_data[0].get('v') != v):
|
||
self._raw_line_data.clear()
|
||
# 或者更简单：每次收到命令40时，如果版本号不同，清空缓存
|
||
if len(self._raw_line_data) > 0:
|
||
first_v = self._raw_line_data[0].get('v')
|
||
if first_v and first_v != v:
|
||
self._raw_line_data.clear()
|
||
self._raw_line_data.append(body)
|
||
if len(self._raw_line_data) >= int(t):
|
||
self.logger.info(f"下载完成")
|
||
from ota_manager import ota_manager
|
||
stock_array = list(map(lambda x: x.get('d'), self._raw_line_data))
|
||
local_filename = config.LOCAL_FILENAME
|
||
with open(local_filename, 'w', encoding='utf-8') as file:
|
||
file.write("\n".join(stock_array))
|
||
ota_manager.apply_ota_and_reboot(None, local_filename)
|
||
else:
|
||
self.safe_enqueue({'data':{'l': len(self._raw_line_data), 'v': v}, 'cmd': 41})
|
||
self.logger.info(f"已下载{len(self._raw_line_data)} 全部：{t} 版本：{v}")
|
||
|
||
# 处理业务指令
|
||
elif logged_in and isinstance(body, dict):
|
||
inner_cmd = None
|
||
data_obj = body.get("data")
|
||
if isinstance(data_obj, dict):
|
||
inner_cmd = data_obj.get("cmd")
|
||
|
||
if inner_cmd == 2: # 开启激光并校准
|
||
from laser_manager import laser_manager
|
||
if not laser_manager.calibration_active:
|
||
laser_manager.turn_on_laser()
|
||
time.sleep_ms(100)
|
||
if not config.HARDCODE_LASER_POINT:
|
||
laser_manager.start_calibration()
|
||
self.safe_enqueue({"result": "calibrating"}, 2)
|
||
else:
|
||
# 写死的逻辑，不需要校准激光点
|
||
self.safe_enqueue({"result": "laser pos set by hard code"}, 2)
|
||
elif inner_cmd == 3: # 关闭激光
|
||
from laser_manager import laser_manager
|
||
laser_manager.turn_off_laser()
|
||
laser_manager.stop_calibration()
|
||
self.safe_enqueue({"result": "laser_off"}, 2)
|
||
elif inner_cmd == 4: # 上报电量
|
||
voltage = get_bus_voltage()
|
||
battery_percent = voltage_to_percent(voltage)
|
||
battery_data = {"battery": battery_percent, "voltage": round(voltage, 3)}
|
||
self.safe_enqueue(battery_data, 2)
|
||
self.logger.info(f"电量上报: {battery_percent}%")
|
||
elif inner_cmd == 5: # OTA 升级
|
||
inner_data = data_obj.get("data", {}) if isinstance(data_obj, dict) else {}
|
||
ssid = inner_data.get("ssid")
|
||
password = inner_data.get("password")
|
||
ota_url = inner_data.get("url")
|
||
mode = (inner_data.get("mode") or "").strip().lower()
|
||
|
||
if not ota_url:
|
||
self.logger.error("ota missing_url")
|
||
self.safe_enqueue({"result": "missing_url"}, 2)
|
||
continue
|
||
|
||
from ota_manager import ota_manager
|
||
if ota_manager.update_thread_started:
|
||
self.safe_enqueue({"result": "update_already_started"}, 2)
|
||
continue
|
||
|
||
# 自动判断模式：如果没有明确指定，根据WiFi连接状态和凭证决定
|
||
if mode not in ("4g", "wifi"):
|
||
self.logger.info("ota missing mode, auto-detecting...")
|
||
# 只有同时满足：WiFi已连接 且 提供了WiFi凭证，才使用WiFi
|
||
if self.is_wifi_connected() and ssid and password:
|
||
mode = "wifi"
|
||
self.logger.info("ota auto-selected: wifi (WiFi connected and credentials provided)")
|
||
else:
|
||
mode = "4g"
|
||
self.logger.info("ota auto-selected: 4g (WiFi not available or no credentials)")
|
||
|
||
if mode == "4g":
|
||
ota_manager._set_ota_url(ota_url) # 记录 OTA URL，供命令7使用
|
||
ota_manager._start_update_thread()
|
||
_thread.start_new_thread(ota_manager.direct_ota_download_via_4g, (ota_url,))
|
||
else: # mode == "wifi"
|
||
if not ssid or not password:
|
||
self.logger.error("ota wifi mode requires ssid and password")
|
||
self.safe_enqueue({"result": "missing_ssid_or_password"}, 2)
|
||
else:
|
||
ota_manager._start_update_thread()
|
||
_thread.start_new_thread(ota_manager.handle_wifi_and_update, (ssid, password, ota_url))
|
||
elif inner_cmd == 6:
|
||
try:
|
||
ip = os.popen("ifconfig wlan0 2>/dev/null | grep 'inet ' | awk '{print $2}'").read().strip()
|
||
ip = ip if ip else "no_ip"
|
||
except:
|
||
ip = "error_getting_ip"
|
||
self.safe_enqueue({"result": "current_ip", "ip": ip}, 2)
|
||
elif inner_cmd == 7:
|
||
from ota_manager import ota_manager
|
||
if ota_manager.update_thread_started:
|
||
self.safe_enqueue({"result": "update_already_started"}, 2)
|
||
continue
|
||
|
||
try:
|
||
ip = os.popen("ifconfig wlan0 2>/dev/null | grep 'inet ' | awk '{print $2}'").read().strip()
|
||
except:
|
||
ip = None
|
||
|
||
if not ip:
|
||
self.safe_enqueue({"result": "ota_rejected", "reason": "no_wifi_ip"}, 2)
|
||
else:
|
||
# 注意：direct_ota_download 需要 ota_url 参数
|
||
# 如果 ota_manager.ota_url 为 None，需要从其他地方获取
|
||
ota_url_to_use = ota_manager.ota_url
|
||
if not ota_url_to_use:
|
||
self.logger.error("[OTA] cmd=7 但 OTA_URL 未设置")
|
||
self.safe_enqueue({"result": "ota_failed", "reason": "ota_url_not_set"}, 2)
|
||
else:
|
||
ota_manager._start_update_thread()
|
||
_thread.start_new_thread(ota_manager.direct_ota_download, (ota_url_to_use,))
|
||
elif inner_cmd == 41:
|
||
self.logger.info("[TEST] 收到TCP射箭触发命令")
|
||
self._manual_trigger_flag = True
|
||
self.safe_enqueue({"result": "trigger_ack"}, 2)
|
||
elif inner_cmd == 42: # 关机命令
|
||
self.logger.info("[SHUTDOWN] 收到TCP关机命令，准备关机...")
|
||
self.safe_enqueue({"result": "shutdown_ack"}, 2)
|
||
time.sleep_ms(1000)
|
||
self.disconnect_server()
|
||
# 尝试关闭4G模块
|
||
try:
|
||
with self.get_uart_lock():
|
||
hardware_manager.at_client.send("AT+CFUN=0", "OK", 5000)
|
||
except:
|
||
pass
|
||
time.sleep_ms(2000)
|
||
os.system("poweroff")
|
||
return
|
||
elif inner_cmd == 43: # 上传日志命令
|
||
# 格式: {"cmd":43, "data":{"ssid":"xxx","password":"xxx","url":"xxx"}}
|
||
inner_data = data_obj.get("data", {})
|
||
upload_url = inner_data.get("url")
|
||
wifi_ssid = inner_data.get("ssid")
|
||
wifi_password = inner_data.get("password")
|
||
|
||
if not upload_url:
|
||
self.logger.error("[LOG_UPLOAD] 缺少 url 参数")
|
||
self.safe_enqueue({"result": "log_upload_failed", "reason": "missing_url"}, 2)
|
||
else:
|
||
self.logger.info(f"[LOG_UPLOAD] 收到日志上传命令，目标URL: {upload_url}")
|
||
# 在新线程中执行上传，避免阻塞主循环
|
||
import _thread
|
||
_thread.start_new_thread(self._upload_log_file, (upload_url, wifi_ssid, wifi_password))
|
||
else:
|
||
time.sleep_ms(5)
|
||
|
||
# 发送队列中的业务数据
|
||
if logged_in and (self._high_send_queue or self._normal_send_queue):
|
||
msg_type = None
|
||
data_dict = None
|
||
if self.get_queue_lock().acquire(blocking=False):
|
||
try:
|
||
if self._high_send_queue:
|
||
msg_type, data_dict = self._high_send_queue.pop(0)
|
||
elif self._normal_send_queue:
|
||
msg_type, data_dict = self._normal_send_queue.pop(0)
|
||
finally:
|
||
self.get_queue_lock().release()
|
||
|
||
if msg_type is not None and data_dict is not None:
|
||
pkt = self._netcore.make_packet(msg_type, data_dict)
|
||
# pkt = self.make_packet(msg_type, data_dict)
|
||
if not self.tcp_send_raw(pkt):
|
||
self._tcp_connected = False
|
||
break
|
||
|
||
# 发送激光校准结果
|
||
if logged_in:
|
||
from laser_manager import laser_manager
|
||
result = laser_manager.get_calibration_result()
|
||
if result:
|
||
x, y = result
|
||
self.safe_enqueue({"result": "ok", "x": x, "y": y}, 2)
|
||
|
||
# 定期发送心跳
|
||
current_time = time.ticks_ms()
|
||
if logged_in and current_time - last_heartbeat_send_time > config.HEARTBEAT_INTERVAL * 1000:
|
||
vol_val = get_bus_voltage()
|
||
if not self.tcp_send_raw(self._netcore.make_packet(4, {"vol": vol_val, "vol_per": voltage_to_percent(vol_val)})):
|
||
# if not self.tcp_send_raw(self.make_packet(4, {"vol": vol_val, "vol_per": voltage_to_percent(vol_val)})):
|
||
self.logger.error("心跳发送失败")
|
||
time.sleep_ms(3000)
|
||
send_hartbeat_fail_count += 1
|
||
if send_hartbeat_fail_count >= 3:
|
||
send_hartbeat_fail_count = 0
|
||
self.logger.error("连续3次发送心跳失败，重连")
|
||
break
|
||
else:
|
||
continue
|
||
else:
|
||
send_hartbeat_fail_count = 0
|
||
last_heartbeat_send_time = current_time
|
||
self.logger.debug("心跳已发送")
|
||
|
||
# 删除 pending 文件（心跳发送成功后）
|
||
if not pending_cleared:
|
||
try:
|
||
pending_path = f"{config.APP_DIR}/ota_pending.json"
|
||
if os.path.exists(pending_path):
|
||
try:
|
||
os.remove(pending_path)
|
||
pending_cleared = True
|
||
self.logger.info("[OTA] 心跳发送成功，已删除 ota_pending.json")
|
||
except Exception as e:
|
||
self.logger.error(f"[OTA] 删除 pending 文件失败: {e}")
|
||
except Exception as e:
|
||
self.logger.error(f"[OTA] 检查 pending 文件时出错: {e}")
|
||
|
||
# 心跳超时重连
|
||
if logged_in and current_time - last_heartbeat_ack_time > 1000*60*10:
|
||
self.logger.error("十分钟无心跳ACK，重连")
|
||
break
|
||
|
||
time.sleep_ms(50)
|
||
|
||
self._tcp_connected = False
|
||
self.logger.error("连接异常，2秒后重连...")
|
||
time.sleep_ms(2000)
|
||
|
||
except Exception as e:
|
||
# TCP主循环的顶层异常捕获，防止线程静默退出
|
||
self.logger.error(f"[NET] TCP主循环异常: {e}")
|
||
import traceback
|
||
self.logger.error(traceback.format_exc())
|
||
self._tcp_connected = False
|
||
time.sleep_ms(5000) # 等待5秒后重试连接
|
||
|
||
|
||
# 创建全局单例实例
|
||
network_manager = NetworkManager()
|
||
|
||
# ==================== 向后兼容的函数接口 ====================
|
||
|
||
def tcp_main():
|
||
"""TCP主循环（向后兼容接口）"""
|
||
return network_manager.tcp_main()
|
||
|
||
def read_device_id():
|
||
"""读取设备ID（向后兼容接口）"""
|
||
return network_manager.read_device_id()
|
||
|
||
def safe_enqueue(data_dict, msg_type=2, high=False):
|
||
"""线程安全地加入队列（向后兼容接口）"""
|
||
return network_manager.safe_enqueue(data_dict, msg_type, high)
|
||
|
||
def connect_server():
|
||
"""连接服务器（向后兼容接口）"""
|
||
return network_manager.connect_server()
|
||
|
||
def disconnet_server():
|
||
"""断开服务器连接（向后兼容接口）"""
|
||
return network_manager.disconnect_server()
|
||
|
||
def is_wifi_connected():
|
||
"""检查WiFi是否已连接（向后兼容接口）"""
|
||
return network_manager.is_wifi_connected()
|
||
|
||
def connect_wifi(ssid, password):
|
||
"""连接WiFi（向后兼容接口）"""
|
||
return network_manager.connect_wifi(ssid, password)
|
||
|
||
def is_server_reachable(host, port=80, timeout=5):
|
||
"""检查服务器是否可达（向后兼容接口）"""
|
||
return network_manager.is_server_reachable(host, port, timeout)
|
||
|
||
|