86 lines
3.1 KiB
Python
86 lines
3.1 KiB
Python
# Pyrogram - Telegram MTProto API Client Library for Python
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# Copyright (C) 2017-2020 Dan <https://github.com/delivrance>
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#
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# This file is part of Pyrogram.
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#
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# Pyrogram is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Pyrogram is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.
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from typing import Union
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from pyrogram import raw
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from pyrogram import types
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from pyrogram import utils
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from pyrogram.scaffold import Scaffold
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class GetChat(Scaffold):
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async def get_chat(
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self,
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chat_id: Union[int, str]
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) -> Union["types.Chat", "types.ChatPreview"]:
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"""Get up to date information about a chat.
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Information include current name of the user for one-on-one conversations, current username of a user, group or
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channel, etc.
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Parameters:
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chat_id (``int`` | ``str``):
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Unique identifier (int) or username (str) of the target chat.
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Unique identifier for the target chat in form of a *t.me/joinchat/* link, identifier (int) or username
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of the target channel/supergroup (in the format @username).
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Returns:
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:obj:`~pyrogram.types.Chat` | :obj:`~pyrogram.types.ChatPreview`: On success, if you've already joined the chat, a chat object is returned,
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otherwise, a chat preview object is returned.
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Raises:
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ValueError: In case the chat invite link points to a chat you haven't joined yet.
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Example:
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.. code-block:: python
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chat = app.get_chat("pyrogram")
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print(chat)
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"""
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match = self.INVITE_LINK_RE.match(str(chat_id))
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if match:
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r = await self.send(
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raw.functions.messages.CheckChatInvite(
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hash=match.group(1)
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)
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)
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if isinstance(r, raw.types.ChatInvite):
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return types.ChatPreview._parse(self, r)
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await self.fetch_peers([r.chat])
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if isinstance(r.chat, raw.types.Chat):
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chat_id = -r.chat.id
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if isinstance(r.chat, raw.types.Channel):
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chat_id = utils.get_channel_id(r.chat.id)
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peer = await self.resolve_peer(chat_id)
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if isinstance(peer, raw.types.InputPeerChannel):
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r = await self.send(raw.functions.channels.GetFullChannel(channel=peer))
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elif isinstance(peer, (raw.types.InputPeerUser, raw.types.InputPeerSelf)):
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r = await self.send(raw.functions.users.GetFullUser(id=peer))
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else:
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r = await self.send(raw.functions.messages.GetFullChat(chat_id=peer.chat_id))
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return await types.Chat._parse_full(self, r)
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