""" GraphQL WebSocket сервис для мониторинга Twitch чата. Замена IRC — не требует OAuth токена. """ import asyncio import json import logging import re from typing import Optional, Callable, Awaitable, List from datetime import datetime from urllib.parse import urlparse import aiohttp logger = logging.getLogger(__name__) _GQL_WS_URL = "wss://gql.twitch.tv/gql" _CLIENT_ID = "kimne78kx3ncx6brgo4mv6wki5h1ko" _CHAT_SUBSCRIPTION = """\ subscription ChatMessages($channelLogin: String!) { chatEvents(input: { channelLogin: $channelLogin }) { ... on ChatMessageEvent { message { sender { displayName login } content { text fragments { ... on TextFragment { text } } } } } } }""" class TwitchGQLChatClient: """ Twitch чат клиент через GQL WebSocket. Интерфейс совместим с TwitchIRCClient. """ def __init__(self, channel: str, target_username: str): self.channel = channel.lower() self.target_username = target_username.lower() self._ws: Optional[aiohttp.ClientWebSocketResponse] = None self._session: Optional[aiohttp.ClientSession] = None self._connected = False self._url_pattern = re.compile(r'https?://[^\s<>"]+') async def connect(self) -> bool: try: self._session = aiohttp.ClientSession() self._ws = await self._session.ws_connect( _GQL_WS_URL, protocols=["graphql-ws"], headers={"Client-ID": _CLIENT_ID}, timeout=aiohttp.ClientTimeout(total=15), ) await self._ws.send_str(json.dumps({ "type": "connection_init", "payload": { "Authorization": "undefined", "Client-ID": _CLIENT_ID, } })) ack = await asyncio.wait_for(self._ws.receive(), timeout=10) msg = json.loads(ack.data) if msg.get("type") != "connection_ack": logger.error(f"GQL WS: unexpected init response: {msg}") await self._cleanup() return False await self._ws.send_str(json.dumps({ "type": "start", "id": "chat", "payload": { "query": _CHAT_SUBSCRIPTION, "variables": {"channelLogin": self.channel}, "operationName": "ChatMessages", } })) self._connected = True logger.info(f"✅ GQL подключен к #{self.channel}") return True except Exception as e: logger.error(f"❌ GQL ошибка подключения: {e}") await self._cleanup() return False async def _cleanup(self) -> None: self._connected = False try: if self._ws and not self._ws.closed: await self._ws.close() except Exception: pass try: if self._session and not self._session.closed: await self._session.close() except Exception: pass self._ws = None self._session = None def _extract_urls(self, text: str) -> List[str]: urls = [] for raw_url in self._url_pattern.findall(text): try: parsed = urlparse(raw_url) clean = f"{parsed.scheme}://{parsed.netloc}{parsed.path}" if parsed.query: clean += f"?{parsed.query}" urls.append(clean) except Exception: urls.append(raw_url.strip()) return urls def _is_domain_allowed(self, url: str, allowed_domains: List[str]) -> bool: if not allowed_domains: return True try: domain = urlparse(url).netloc.lower() return any(d.lower() in domain for d in allowed_domains) except Exception: return False async def listen_for_messages( self, on_url_found: Callable[[str, str], Awaitable[None]], duration: int, allowed_domains: Optional[List[str]] = None, is_active: Callable[[], bool] = None, on_drain_fail: Callable[[], Awaitable[None]] = None, ) -> dict: stats = {"links_found": 0, "messages": 0, "reconnects": 0} start_time = datetime.now() reconnect_errors = 0 if is_active and not is_active(): logger.info(f"⏸️ #{self.channel} ждём resume перед подключением...") while is_active and not is_active(): await asyncio.sleep(2) if not await self.connect(): raise ConnectionError(f"GQL connect failed for #{self.channel}") while duration == 0 or (datetime.now() - start_time).seconds < duration: if is_active and not is_active(): logger.info(f"⏸️ #{self.channel} пауза...") await self._cleanup() while is_active and not is_active(): await asyncio.sleep(2) logger.info(f"▶️ #{self.channel} resume, переподключение...") if not await self.connect(): reconnect_errors += 1 if reconnect_errors >= 3 and on_drain_fail: await on_drain_fail() return stats else: reconnect_errors = 0 stats["reconnects"] += 1 continue if not self._connected or self._ws is None or self._ws.closed: await asyncio.sleep(5) if not await self.connect(): reconnect_errors += 1 if reconnect_errors >= 3 and on_drain_fail: await on_drain_fail() return stats else: reconnect_errors = 0 stats["reconnects"] += 1 continue try: raw = await asyncio.wait_for(self._ws.receive(), timeout=30.0) except asyncio.CancelledError: raise except asyncio.TimeoutError: continue except Exception as e: logger.warning(f"GQL receive error: {e}") self._connected = False continue if raw.type in ( aiohttp.WSMsgType.CLOSING, aiohttp.WSMsgType.CLOSED, aiohttp.WSMsgType.ERROR, ): logger.warning(f"WS закрыт: {raw.type}") self._connected = False continue if raw.type != aiohttp.WSMsgType.TEXT: continue try: msg = json.loads(raw.data) except Exception: continue msg_type = msg.get("type") if msg_type == "ka": # keep-alive от Twitch continue if msg_type == "connection_error": logger.error(f"GQL connection error: {msg}") self._connected = False continue if msg_type != "data": continue payload = msg.get("payload", {}) data = payload.get("data", {}) chat_event = data.get("chatEvents") if not chat_event: continue message_obj = chat_event.get("message", {}) if not message_obj: continue sender = message_obj.get("sender", {}) display_name = sender.get("displayName", "unknown") content = message_obj.get("content", {}) text = content.get("text", "") if not text.strip(): continue stats["messages"] += 1 logger.debug(f"GQL message from {display_name}: {text[:50]}...") for url in self._extract_urls(text): if self._is_domain_allowed(url, allowed_domains): stats["links_found"] += 1 try: await on_url_found(url, display_name) except asyncio.CancelledError: raise except Exception: pass return stats async def disconnect(self) -> None: await self._cleanup()