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get_chat.py
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79 lines (61 loc) · 3.14 KB
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# Hydrogram - Telegram MTProto API Client Library for Python
# Copyright (C) 2017-2023 Dan <https://github.com/delivrance>
# Copyright (C) 2023-present Hydrogram <https://hydrogram.org>
#
# This file is part of Hydrogram.
#
# Hydrogram is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Hydrogram is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Hydrogram. If not, see <http://www.gnu.org/licenses/>.
from __future__ import annotations
import hydrogram
from hydrogram import raw, types, utils
class GetChat:
async def get_chat(
self: hydrogram.Client, chat_id: int | str
) -> types.Chat | types.ChatPreview:
"""Get up to date information about a chat.
Information include current name of the user for one-on-one conversations, current username of a user, group or
channel, etc.
.. include:: /_includes/usable-by/users-bots.rst
Parameters:
chat_id (``int`` | ``str``):
Unique identifier (int) or username (str) of the target chat.
Unique identifier for the target chat in form of a *t.me/joinchat/* link, identifier (int) or username
of the target channel/supergroup (in the format @username).
Returns:
:obj:`~hydrogram.types.Chat` | :obj:`~hydrogram.types.ChatPreview`: On success, if you've already joined the chat, a chat object is returned,
otherwise, a chat preview object is returned.
Raises:
ValueError: In case the chat invite link points to a chat you haven't joined yet.
Example:
.. code-block:: python
chat = await app.get_chat("hydrogram")
print(chat)
"""
if match := self.INVITE_LINK_RE.match(str(chat_id)):
r = await self.invoke(raw.functions.messages.CheckChatInvite(hash=match.group(1)))
if isinstance(r, raw.types.ChatInvite):
return types.ChatPreview._parse(self, r)
await self.fetch_peers([r.chat])
if isinstance(r.chat, raw.types.Chat):
chat_id = -r.chat.id
if isinstance(r.chat, raw.types.Channel):
chat_id = utils.get_channel_id(r.chat.id)
peer = await self.resolve_peer(chat_id)
if isinstance(peer, raw.types.InputPeerChannel):
r = await self.invoke(raw.functions.channels.GetFullChannel(channel=peer))
elif isinstance(peer, (raw.types.InputPeerUser, raw.types.InputPeerSelf)):
r = await self.invoke(raw.functions.users.GetFullUser(id=peer))
else:
r = await self.invoke(raw.functions.messages.GetFullChat(chat_id=peer.chat_id))
return await types.Chat._parse_full(self, r)