mirror of
https://github.com/xinnan-tech/xiaozhi-esp32-server.git
synced 2026-07-23 15:43:54 +08:00
379 lines
13 KiB
Python
379 lines
13 KiB
Python
import copy
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import uuid
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import time
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import queue
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import asyncio
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import threading
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from dataclasses import dataclass, field
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from typing import Any, Dict, Optional, List, Callable, Awaitable, Union
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from collections import deque
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from concurrent.futures import ThreadPoolExecutor
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from core.utils.dialogue import Dialogue
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from core.auth import AuthMiddleware
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from core.utils.prompt_manager import PromptManager
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from core.utils.voiceprint_provider import VoiceprintProvider
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from config.logger import setup_logging
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@dataclass
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class SessionContext:
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"""
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会话上下文：完全替换ConnectionHandler的所有功能
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承载单连接生命周期内的状态、组件、资源管理
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与传输层解耦，支持WebSocket/MQTT/UDP等多协议
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"""
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# === 基础标识 ===
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session_id: str = field(default_factory=lambda: str(uuid.uuid4()))
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device_id: Optional[str] = None
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client_ip: Optional[str] = None
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headers: Dict[str, str] = field(default_factory=dict)
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# === 配置管理 ===
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config: Dict[str, Any] = field(default_factory=dict)
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common_config: Dict[str, Any] = field(default_factory=dict)
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private_config: Dict[str, Any] = field(default_factory=dict)
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selected_module_str: str = ""
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# === 认证与绑定 ===
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is_authenticated: bool = False
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need_bind: bool = False
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bind_code: Optional[str] = None
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read_config_from_api: bool = False
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max_output_size: int = 0
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chat_history_conf: int = 0
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# === 会话状态 ===
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is_speaking: bool = False
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listen_mode: str = "auto"
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abort_requested: bool = False
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close_after_chat: bool = False
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just_woken_up: bool = False
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load_function_plugin: bool = False
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intent_type: str = "nointent"
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# === 音频相关 ===
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audio_format: str = "opus"
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client_have_voice: bool = False
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client_voice_stop: bool = False
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client_audio_buffer: bytearray = field(default_factory=bytearray)
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client_voice_window: deque = field(default_factory=lambda: deque(maxlen=5))
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last_is_voice: bool = False
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audio_flow_control: Dict[str, Any] = field(default_factory=dict)
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# === ASR相关 ===
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asr_audio: List[bytes] = field(default_factory=list)
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asr_audio_queue: queue.Queue = field(default_factory=queue.Queue)
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asr_priority_thread: Optional[threading.Thread] = None
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# === LLM相关 ===
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llm_finish_task: bool = True
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dialogue: Optional[Dialogue] = None
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current_speaker: Optional[str] = None
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sentence_id: Optional[str] = None
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# === TTS相关 ===
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tts_MessageText: str = ""
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# === IoT相关 ===
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iot_descriptors: Dict[str, Any] = field(default_factory=dict)
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func_handler: Optional[Any] = None
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# === 时间管理 ===
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last_activity_time_ms: float = field(default_factory=lambda: time.time() * 1000)
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created_at: float = field(default_factory=lambda: time.time())
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timeout_seconds: int = 180 # 默认超时时间
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timeout_task: Optional[asyncio.Task] = None
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# === 组件实例 ===
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# components属性通过@property方法提供，指向component_manager
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# === 其他状态 ===
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welcome_msg: Optional[Dict[str, Any]] = None
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prompt: Optional[str] = None
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features: Optional[Dict[str, Any]] = None
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mcp_client: Optional[Any] = None
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cmd_exit: List[str] = field(default_factory=list)
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# === 线程与并发 ===
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loop: Optional[asyncio.AbstractEventLoop] = None
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stop_event: Optional[threading.Event] = None
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executor: Optional[ThreadPoolExecutor] = None
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# === 队列管理 ===
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report_queue: queue.Queue = field(default_factory=queue.Queue)
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report_thread: Optional[threading.Thread] = None
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report_asr_enable: bool = False
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report_tts_enable: bool = False
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# === 组件管理器 ===
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component_manager: Optional[Any] = None
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# === 兼容属性（用于向后兼容TTS处理） ===
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tts: Optional[Any] = None
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websocket: Optional[Any] = None # 兼容旧TTS组件
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transport: Optional[Any] = None # 新的transport接口
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# === 工具类 ===
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auth: Optional[AuthMiddleware] = None
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prompt_manager: Optional[PromptManager] = None
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voiceprint_provider: Optional[VoiceprintProvider] = None
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server: Optional[Any] = None # WebSocket服务器引用
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# === 会话级清理回调 ===
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_cleanup_callbacks: List[Callable[[], Union[None, Awaitable[None]]]] = field(default_factory=list)
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def __post_init__(self):
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"""初始化后处理"""
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# 深拷贝配置避免污染
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if self.config:
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self.common_config = self.config
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self.config = copy.deepcopy(self.config)
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# 从配置中读取相关设置
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self.read_config_from_api = self.config.get("read_config_from_api", False)
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self.max_output_size = self.config.get("max_output_size", 0)
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self.chat_history_conf = self.config.get("chat_history_conf", 0)
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self.cmd_exit = self.config.get("exit_commands", [])
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self.timeout_seconds = int(self.config.get("close_connection_no_voice_time", 120)) + 60
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# 初始化认证中间件
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self.auth = AuthMiddleware(self.config)
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# 初始化提示词管理器
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self.prompt_manager = PromptManager(self.config, setup_logging())
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# 初始化对话管理
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if not self.dialogue:
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self.dialogue = Dialogue()
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# 初始化线程相关
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if not self.loop:
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try:
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self.loop = asyncio.get_event_loop()
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except RuntimeError:
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self.loop = asyncio.new_event_loop()
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if not self.stop_event:
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self.stop_event = threading.Event()
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if not self.executor:
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self.executor = ThreadPoolExecutor(max_workers=5)
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# 初始化上报设置
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self.report_asr_enable = self.read_config_from_api
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self.report_tts_enable = self.read_config_from_api
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def update_activity(self) -> None:
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"""刷新最后活跃时间"""
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self.last_activity_time_ms = time.time() * 1000
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def clearSpeakStatus(self) -> None:
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"""清除服务端讲话状态（兼容方法）"""
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self.is_speaking = False
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logger = setup_logging()
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logger.debug("清除服务端讲话状态")
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def reset_vad_states(self) -> None:
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"""重置VAD状态（兼容方法）"""
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self.client_audio_buffer = bytearray()
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self.client_have_voice = False
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self.client_voice_stop = False
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logger = setup_logging()
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logger.debug("VAD states reset.")
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def is_timeout(self, timeout_seconds: int) -> bool:
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"""检查是否超时"""
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now_ms = time.time() * 1000
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return (now_ms - self.last_activity_time_ms) > (timeout_seconds * 1000)
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def register_cleanup(self, callback: Callable[[], Union[None, Awaitable[None]]]) -> None:
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"""注册会话结束时需要执行的清理回调"""
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self._cleanup_callbacks.append(callback)
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async def run_cleanup(self) -> None:
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"""执行所有注册的清理回调"""
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logger = setup_logging()
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logger.info(f"Session {self.session_id} 开始执行会话级清理 ({len(self._cleanup_callbacks)} 个回调)")
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# 停止所有线程
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if self.stop_event:
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self.stop_event.set()
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# 关闭线程池
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if self.executor:
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self.executor.shutdown(wait=False)
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# 取消超时任务
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if self.timeout_task and not self.timeout_task.done():
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self.timeout_task.cancel()
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# 执行清理回调
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for callback in reversed(self._cleanup_callbacks):
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try:
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result = callback()
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if asyncio.iscoroutine(result):
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await result
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except Exception as e:
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logger.error(f"Session {self.session_id} 清理回调执行失败: {e}", exc_info=True)
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self._cleanup_callbacks.clear()
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logger.info(f"Session {self.session_id} 会话级清理完成")
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# === 兼容旧代码的属性访问 ===
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@property
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def client_is_speaking(self) -> bool:
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"""兼容旧代码的属性名"""
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return self.is_speaking
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@client_is_speaking.setter
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def client_is_speaking(self, value: bool):
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self.is_speaking = value
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@property
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def client_listen_mode(self) -> str:
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"""兼容旧代码的属性名"""
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return self.listen_mode
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@client_listen_mode.setter
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def client_listen_mode(self, value: str):
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self.listen_mode = value
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@property
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def client_abort(self) -> bool:
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"""兼容旧代码的属性名"""
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return self.abort_requested
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@client_abort.setter
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def client_abort(self, value: bool):
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self.abort_requested = value
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@property
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def components(self):
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"""组件访问器（兼容属性）"""
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return self.component_manager
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@components.setter
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def components(self, value):
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"""组件设置器（兼容属性）- 实际设置到component_manager"""
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# 如果尝试设置components，我们忽略它或者给出警告
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# 因为components应该通过component_manager管理
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logger = setup_logging()
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logger.warning("尝试直接设置components属性，请使用component_manager")
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@property
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def last_activity_time(self) -> float:
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"""兼容旧代码：返回毫秒级时间戳"""
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return self.last_activity_time_ms
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@last_activity_time.setter
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def last_activity_time(self, value: float):
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"""兼容旧代码：接受毫秒级时间戳"""
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self.last_activity_time_ms = value
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# === 日志相关 ===
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@property
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def logger(self):
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"""获取日志记录器"""
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return setup_logging()
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# === 工具方法 ===
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def get_component(self, component_name: str) -> Optional[Any]:
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"""获取组件实例"""
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return self.components.get(component_name)
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def set_component(self, component_name: str, component_instance: Any) -> None:
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"""设置组件实例"""
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if self.component_manager:
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self.component_manager._components[component_name] = component_instance
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def has_component(self, component_name: str) -> bool:
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"""检查是否有指定组件"""
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return component_name in self.components
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def clear_audio_buffer(self) -> None:
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"""清空音频缓冲区"""
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self.client_audio_buffer.clear()
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self.asr_audio.clear()
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# 清空队列
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try:
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while not self.asr_audio_queue.empty():
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self.asr_audio_queue.get_nowait()
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except queue.Empty:
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pass
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def reset_voice_state(self) -> None:
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"""重置语音状态"""
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self.client_have_voice = False
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self.client_voice_stop = False
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self.last_is_voice = False
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self.client_voice_window.clear()
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def initialize_private_config(self) -> None:
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"""初始化差异化配置（从ConnectionHandler迁移）"""
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from config.config_loader import get_private_config_from_api
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from config.manage_api_client import DeviceNotFoundException, DeviceBindException
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if not self.read_config_from_api:
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return
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try:
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# 获取设备私有配置
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private_config = get_private_config_from_api(
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self.config, self.device_id, self.headers.get("client-id")
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)
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if private_config:
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self.private_config = private_config
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# 合并私有配置到主配置
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self.config.update(private_config)
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except DeviceNotFoundException:
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self.logger.error(f"设备 {self.device_id} 未找到")
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self.need_bind = True
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except DeviceBindException as e:
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self.logger.error(f"设备绑定异常: {e}")
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self.need_bind = True
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self.bind_code = str(e)
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except Exception as e:
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self.logger.error(f"获取私有配置失败: {e}")
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async def initialize_components(self) -> None:
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"""异步初始化组件（从ConnectionHandler迁移）"""
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if not self.component_manager:
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return
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try:
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# 初始化各个组件
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from core.components.component_registry import ComponentType
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# 按依赖顺序初始化组件
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component_types = [
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ComponentType.VAD,
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ComponentType.ASR,
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ComponentType.LLM,
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ComponentType.MEMORY,
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ComponentType.INTENT,
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ComponentType.TTS
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]
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for component_type in component_types:
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try:
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component = await self.component_manager.get_component(component_type, self)
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if component:
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self.logger.info(f"组件 {component_type} 初始化成功")
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except Exception as e:
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self.logger.error(f"组件 {component_type} 初始化失败: {e}")
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except Exception as e:
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self.logger.error(f"组件初始化失败: {e}")
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def __str__(self) -> str:
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return f"SessionContext(session_id={self.session_id}, device_id={self.device_id})"
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def __repr__(self) -> str:
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return self.__str__()
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