137 lines
4.7 KiB
Python
137 lines
4.7 KiB
Python
"""
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Сбор сообщений из Telegram-каналов через Telethon.
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"""
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import asyncio
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import logging
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from datetime import datetime, timedelta, timezone
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from dataclasses import dataclass, field
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from pathlib import Path
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from telethon import TelegramClient
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from telethon.errors import (
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FloodWaitError,
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ChannelPrivateError,
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UsernameNotOccupiedError,
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UsernameInvalidError,
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)
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logger = logging.getLogger(__name__)
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SESSION_DIR = Path("/data")
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@dataclass
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class Message:
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channel: str
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channel_title: str
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text: str
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date: datetime
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views: int = 0
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url: str = ""
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@dataclass
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class CollectorResult:
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messages: list[Message] = field(default_factory=list)
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errors: dict[str, str] = field(default_factory=dict)
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class MessageCollector:
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def __init__(self, config: dict):
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tg = config["telegram"]
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session_path = SESSION_DIR / tg["session_name"]
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self.client = TelegramClient(
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str(session_path), tg["api_id"], tg["api_hash"]
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)
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self.channels: list[str] = tg["channels"]
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self.hours_back: int = tg.get("hours_back", 12)
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self.max_per_channel: int = tg.get("max_messages_per_channel", 50)
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self.delay: float = tg.get("delay_between_channels", 2)
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self.min_length: int = tg.get("min_message_length", 50)
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async def auth(self):
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"""Интерактивная авторизация (первый запуск)."""
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await self.client.start()
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me = await self.client.get_me()
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logger.info(f"Авторизован как: {me.first_name} ({me.phone})")
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await self.client.disconnect()
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async def collect(self) -> CollectorResult:
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"""Собрать сообщения из всех каналов."""
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result = CollectorResult()
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cutoff = datetime.now(timezone.utc) - timedelta(hours=self.hours_back)
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await self.client.connect()
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if not await self.client.is_user_authorized():
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raise RuntimeError(
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"Сессия не авторизована. Запусти:\n"
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"docker compose run --rm app python main.py --auth"
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)
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for channel in self.channels:
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try:
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messages = await self._collect_channel(channel, cutoff)
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result.messages.extend(messages)
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logger.info(f" ✓ {channel}: {len(messages)} сообщений")
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except ChannelPrivateError:
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err = "Канал приватный или вы не подписаны"
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result.errors[channel] = err
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logger.warning(f" ✗ {channel}: {err}")
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except (UsernameNotOccupiedError, UsernameInvalidError):
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err = "Канал не найден"
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result.errors[channel] = err
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logger.warning(f" ✗ {channel}: {err}")
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except FloodWaitError as e:
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logger.warning(f" ⏳ FloodWait: ждём {e.seconds}с")
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await asyncio.sleep(e.seconds)
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try:
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messages = await self._collect_channel(channel, cutoff)
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result.messages.extend(messages)
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except Exception as retry_err:
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result.errors[channel] = str(retry_err)
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except Exception as e:
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result.errors[channel] = str(e)
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logger.warning(f" ✗ {channel}: {e}")
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await asyncio.sleep(self.delay)
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await self.client.disconnect()
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result.messages.sort(key=lambda m: m.date, reverse=True)
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logger.info(
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f"Итого: {len(result.messages)} сообщений из "
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f"{len(self.channels) - len(result.errors)} каналов"
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)
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return result
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async def _collect_channel(
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self, channel: str, cutoff: datetime
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) -> list[Message]:
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entity = await self.client.get_entity(channel)
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channel_title = getattr(entity, "title", channel)
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messages = []
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async for msg in self.client.iter_messages(
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entity, limit=self.max_per_channel
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):
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if msg.date < cutoff:
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break
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if not msg.text or len(msg.text.strip()) < self.min_length:
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continue
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username = getattr(entity, "username", None)
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url = f"https://t.me/{username}/{msg.id}" if username else ""
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messages.append(
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Message(
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channel=channel,
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channel_title=channel_title,
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text=msg.text.strip(),
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date=msg.date,
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views=msg.views or 0,
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url=url,
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)
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)
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return messages
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