houhuan
c7b8b01fe2
Receives messages from WeChat Work bot via WebSocket long connection and speaks them through XiaoAi smart speaker TTS. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
141 lines
4.1 KiB
Python
141 lines
4.1 KiB
Python
import asyncio
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import json
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import logging
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import uuid
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import aiohttp
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from app.services.tts import speak
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import config
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logger = logging.getLogger(__name__)
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WSS_URL = "wss://openws.work.weixin.qq.com"
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PING_INTERVAL = 30
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async def _send(ws, cmd: str, body: dict | None = None, req_id: str | None = None):
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if req_id is None:
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req_id = uuid.uuid4().hex[:16]
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msg = {"cmd": cmd, "headers": {"req_id": req_id}}
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if body is not None:
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msg["body"] = body
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await ws.send_str(json.dumps(msg, ensure_ascii=False))
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return req_id
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async def _recv(ws) -> dict:
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msg = await ws.receive()
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if msg.type == aiohttp.WSMsgType.TEXT:
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return json.loads(msg.data)
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if msg.type == aiohttp.WSMsgType.CLOSED:
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raise ConnectionError(f"WebSocket closed gracefully (code={msg.data})")
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if msg.type == aiohttp.WSMsgType.ERROR:
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raise ConnectionError(f"WebSocket error: {ws.exception()}")
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if msg.type == aiohttp.WSMsgType.CLOSE:
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raise ConnectionError(f"WebSocket closing (code={msg.data})")
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# PING, PONG, BINARY etc - ignore
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return {}
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def _extract_text(msg: dict) -> str | None:
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body = msg.get("body", {})
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msgtype = body.get("msgtype", "")
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if msgtype == "text":
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return body.get("text", {}).get("content", "").strip() or None
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if msgtype == "voice":
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return body.get("voice", {}).get("content", "").strip() or None
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return None
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async def _handle_message(ws, msg: dict):
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text = _extract_text(msg)
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if not text:
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return
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logger.info("Received: %s", text)
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loop = asyncio.get_running_loop()
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success, result = await loop.run_in_executor(None, speak, text)
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req_id = msg.get("headers", {}).get("req_id", "")
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if success:
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logger.info("TTS success")
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reply_text = "已播报"
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else:
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logger.error("TTS failed: %s", result)
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reply_text = f"播报失败: {result.get('error', 'unknown')}"
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await _send(ws, "aibot_respond_msg", {
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"msgtype": "stream",
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"stream": {
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"id": uuid.uuid4().hex[:16],
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"finish": True,
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"content": reply_text,
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},
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}, req_id=req_id)
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async def _ping_loop(ws):
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while True:
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try:
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await asyncio.sleep(PING_INTERVAL)
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await _send(ws, "ping")
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except asyncio.CancelledError:
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break
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except Exception:
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logger.exception("Ping failed")
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break
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async def connect_and_serve():
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while True:
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try:
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await _run_connection()
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except Exception:
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logger.exception("Connection lost, reconnecting in 5s...")
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await asyncio.sleep(5)
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async def _run_connection():
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logger.info("Connecting to %s ...", WSS_URL)
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async with aiohttp.ClientSession() as session:
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async with session.ws_connect(
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WSS_URL, heartbeat=30, receive_timeout=300
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) as ws:
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logger.info("WebSocket connected")
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await _send(ws, "aibot_subscribe", {
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"bot_id": config.WECOM_BOT_ID,
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"secret": config.WECOM_BOT_SECRET,
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})
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resp = await _recv(ws)
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if resp.get("errcode") != 0:
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logger.error("Subscribe failed: %s", resp)
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return
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logger.info("Subscribed successfully")
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ping_task = asyncio.create_task(_ping_loop(ws))
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try:
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while True:
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msg = await _recv(ws)
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cmd = msg.get("cmd", "")
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if cmd == "aibot_msg_callback":
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asyncio.create_task(_handle_message(ws, msg))
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elif cmd == "aibot_event_callback":
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event_type = msg.get("body", {}).get("event", {}).get("eventtype", "")
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logger.info("Event: %s", event_type)
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elif cmd == "ping_response":
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pass
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elif cmd:
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logger.debug("Cmd: %s", cmd)
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finally:
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ping_task.cancel()
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try:
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await ping_task
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except asyncio.CancelledError:
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pass
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