85 lines
2.8 KiB
Python
85 lines
2.8 KiB
Python
# Pyrogram - Telegram MTProto API Client Library for Python
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# Copyright (C) 2017-2019 Dan Tès <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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import logging
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import time
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from typing import Union
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from pyrogram.api import types, functions
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from pyrogram.client.ext import BaseClient
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from pyrogram.errors import FloodWait
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log = logging.getLogger(__name__)
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class GetHistoryCount(BaseClient):
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def get_history_count(
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self,
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chat_id: Union[int, str]
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) -> int:
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"""Get the total count of messages in a chat.
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.. note::
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Due to Telegram latest internal changes, the server can't reliably find anymore the total count of messages
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a **private** or a **basic group** chat has with a single method call. To overcome this limitation, Pyrogram
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has to iterate over all the messages. Channels and supergroups are not affected by this limitation.
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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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Returns:
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``int``: On success, the chat history count is returned.
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Raises:
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RPCError: In case of a Telegram RPC error.
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"""
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peer = self.resolve_peer(chat_id)
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if not isinstance(peer, types.InputPeerChannel):
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offset = 0
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limit = 100
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while True:
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try:
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r = self.send(
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functions.messages.GetHistory(
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peer=peer,
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offset_id=1,
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offset_date=0,
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add_offset=-offset - limit,
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limit=limit,
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max_id=0,
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min_id=0,
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hash=0
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)
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)
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except FloodWait as e:
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log.warning("Sleeping for {}s".format(e.x))
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time.sleep(e.x)
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continue
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if not r.messages:
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return offset
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offset += len(r.messages)
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return self.get_history(chat_id=chat_id, limit=1).total_count
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