268 lines
9.7 KiB
Python
268 lines
9.7 KiB
Python
import asyncio
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import json
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from typing import Any
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import requests
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class TelegramApiError(RuntimeError):
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def __init__(
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self,
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message: str,
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*,
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method: str | None = None,
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status_code: int | None = None,
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error_code: int | None = None,
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description: str | None = None,
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parameters: dict[str, Any] | None = None,
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) -> None:
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super().__init__(message)
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self.method = method
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self.status_code = status_code
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self.error_code = error_code
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self.description = description
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self.parameters = parameters or {}
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@property
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def migrate_to_chat_id(self) -> str | None:
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value = self.parameters.get("migrate_to_chat_id")
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if value is None:
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return None
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return str(value)
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class TelegramClient:
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def __init__(self, bot_token: str, fallback_user_id: str, timeout: int = 30) -> None:
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self._base_url = f"https://api.telegram.org/bot{bot_token}"
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self._file_base_url = f"https://api.telegram.org/file/bot{bot_token}"
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self._fallback_user_id = fallback_user_id
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self._timeout = timeout
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self._chat_title_to_id: dict[str, str] = {}
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self._me: dict[str, Any] | None = None
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@property
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def fallback_user_id(self) -> str:
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return str(self._fallback_user_id or "")
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async def resolve_target_chat_id(self, max_chat_name: str) -> tuple[str, bool]:
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chat_id = await self._find_chat_id_by_title(max_chat_name)
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if chat_id:
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return chat_id, True
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return self._fallback_user_id, False
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async def send_text(
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self,
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chat_id: str,
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text: str,
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*,
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reply_to_message_id: int | None = None,
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) -> dict[str, Any]:
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payload: dict[str, Any] = {
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"chat_id": chat_id,
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"text": text,
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"disable_web_page_preview": True,
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}
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if reply_to_message_id is not None:
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payload["reply_to_message_id"] = reply_to_message_id
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return await self._request("sendMessage", payload)
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async def send_photo(
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self,
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chat_id: str,
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photo_url: str,
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caption: str | None = None,
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*,
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reply_to_message_id: int | None = None,
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) -> dict[str, Any]:
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payload: dict[str, Any] = {
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"chat_id": chat_id,
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"photo": photo_url,
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}
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if caption:
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payload["caption"] = caption
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if reply_to_message_id is not None:
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payload["reply_to_message_id"] = reply_to_message_id
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return await self._request("sendPhoto", payload)
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async def send_video(
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self,
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chat_id: str,
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video_url: str,
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caption: str | None = None,
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*,
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reply_to_message_id: int | None = None,
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) -> dict[str, Any]:
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payload: dict[str, Any] = {
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"chat_id": chat_id,
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"video": video_url,
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"supports_streaming": True,
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}
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if caption:
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payload["caption"] = caption
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if reply_to_message_id is not None:
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payload["reply_to_message_id"] = reply_to_message_id
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return await self._request("sendVideo", payload)
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async def send_media_group(
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self,
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chat_id: str,
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image_urls: list[str],
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video_urls: list[str],
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caption: str | None = None,
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*,
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reply_to_message_id: int | None = None,
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) -> list[dict[str, Any]]:
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media: list[dict[str, Any]] = []
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for url in image_urls:
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media.append({"type": "photo", "media": url})
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for url in video_urls:
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media.append({"type": "video", "media": url, "supports_streaming": True})
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if not media:
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return []
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if caption:
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media[0]["caption"] = caption
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mg_payload: dict[str, Any] = {
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"chat_id": chat_id,
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"media": media,
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}
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if reply_to_message_id is not None:
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mg_payload["reply_to_message_id"] = reply_to_message_id
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data = await self._request(
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"sendMediaGroup",
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mg_payload,
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)
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result = data.get("result", [])
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if not isinstance(result, list):
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return []
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return [m for m in result if isinstance(m, dict)]
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async def get_me(self) -> dict[str, Any]:
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if self._me is not None:
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return self._me
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data = await self._request("getMe", {})
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me = data.get("result")
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if not isinstance(me, dict):
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raise TelegramApiError(f"Telegram getMe: unexpected payload {data}")
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self._me = me
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return me
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async def get_updates(self, *, offset: int | None, timeout: int = 25, limit: int = 100) -> list[dict[str, Any]]:
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payload: dict[str, Any] = {
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"timeout": timeout,
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"limit": limit,
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# Реагируем только на новые сообщения/посты (текст, фото, видео).
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"allowed_updates": ["message", "channel_post"],
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}
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if offset is not None:
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payload["offset"] = offset
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data = await self._request("getUpdates", payload)
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result = data.get("result", [])
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if not isinstance(result, list):
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return []
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updates = [u for u in result if isinstance(u, dict)]
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# Важно: не делаем getUpdates нигде больше (иначе 409 Conflict).
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# Наполняем кэш чатов только из этого потока.
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for upd in updates:
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for container in ("message", "channel_post"):
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msg = upd.get(container)
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if not isinstance(msg, dict):
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continue
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chat = msg.get("chat")
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if not isinstance(chat, dict):
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continue
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self._cache_chat(chat)
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return updates
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async def get_file_url(self, file_id: str) -> str:
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data = await self._request("getFile", {"file_id": file_id})
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result = data.get("result")
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if not isinstance(result, dict):
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raise TelegramApiError(f"Telegram getFile: unexpected payload {data}")
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file_path = result.get("file_path")
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if not isinstance(file_path, str) or not file_path.strip():
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raise TelegramApiError(f"Telegram getFile: missing file_path {data}")
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return f"{self._file_base_url}/{file_path}"
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async def add_reaction(self, *, chat_id: str, message_id: str, emoji: str) -> None:
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# setMessageReaction доступен не везде/не всегда; ошибки реакции не должны ломать бридж
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await self._request(
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"setMessageReaction",
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{
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"chat_id": chat_id,
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"message_id": int(message_id),
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"reaction": [{"type": "emoji", "emoji": emoji}],
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},
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)
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def _cache_chat(self, chat: dict[str, Any]) -> None:
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title_value = self._extract_chat_title(chat)
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chat_id = chat.get("id")
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if title_value and chat_id is not None:
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self._chat_title_to_id[self._normalize_title(title_value)] = str(chat_id)
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async def _find_chat_id_by_title(self, chat_title: str) -> str | None:
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normalized = self._normalize_title(chat_title)
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if not normalized:
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return None
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cached = self._chat_title_to_id.get(normalized)
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if cached:
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return cached
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# Не дергаем getUpdates здесь — это вызовет конфликт с polling циклом.
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return None
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@staticmethod
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def _extract_chat_title(chat: dict[str, Any]) -> str:
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return str(chat.get("title") or chat.get("username") or "").strip()
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@staticmethod
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def _normalize_title(value: str) -> str:
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return value.strip().casefold()
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async def _request(self, method: str, payload: dict[str, Any]) -> dict[str, Any]:
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url = f"{self._base_url}/{method}"
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def _do_request() -> requests.Response:
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return requests.post(url, json=payload, timeout=self._timeout)
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response = await asyncio.to_thread(_do_request)
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if response.status_code >= 400:
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error_code: int | None = None
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description: str | None = None
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parameters: dict[str, Any] = {}
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try:
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payload_data = response.json()
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if isinstance(payload_data, dict):
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if isinstance(payload_data.get("error_code"), int):
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error_code = payload_data.get("error_code")
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if isinstance(payload_data.get("description"), str):
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description = payload_data.get("description")
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if isinstance(payload_data.get("parameters"), dict):
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parameters = payload_data.get("parameters", {})
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except (json.JSONDecodeError, ValueError):
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payload_data = None
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raise TelegramApiError(
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f"Telegram HTTP error on {method}: {response.status_code} {response.text}",
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method=method,
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status_code=response.status_code,
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error_code=error_code,
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description=description,
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parameters=parameters,
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)
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data = response.json()
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if not data.get("ok"):
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raise TelegramApiError(
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f"Telegram API error on {method}: {data}",
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method=method,
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error_code=data.get("error_code") if isinstance(data.get("error_code"), int) else None,
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description=data.get("description") if isinstance(data.get("description"), str) else None,
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parameters=data.get("parameters") if isinstance(data.get("parameters"), dict) else None,
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)
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return data
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