96 lines
3.5 KiB
Python
96 lines
3.5 KiB
Python
# Pyrogram - Telegram MTProto API Client Library for Python
|
|
# Copyright (C) 2017-2019 Dan Tès <https://github.com/delivrance>
|
|
#
|
|
# This file is part of Pyrogram.
|
|
#
|
|
# Pyrogram 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.
|
|
#
|
|
# Pyrogram 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 Pyrogram. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
from typing import Union, Generator
|
|
|
|
import pyrogram
|
|
from ...ext import BaseClient
|
|
|
|
|
|
class IterHistory(BaseClient):
|
|
def iter_history(
|
|
self,
|
|
chat_id: Union[int, str],
|
|
limit: int = 0,
|
|
offset: int = 0,
|
|
offset_id: int = 0,
|
|
offset_date: int = 0,
|
|
reverse: bool = False
|
|
) -> Generator["pyrogram.Message", None, None]:
|
|
"""Use this method to iterate through a chat history sequentially.
|
|
|
|
This convenience method does the same as repeatedly calling :meth:`get_history` in a loop, thus saving you from
|
|
the hassle of setting up boilerplate code. It is useful for getting the whole chat history with a single call.
|
|
|
|
Parameters:
|
|
chat_id (``int`` | ``str``):
|
|
Unique identifier (int) or username (str) of the target chat.
|
|
For your personal cloud (Saved Messages) you can simply use "me" or "self".
|
|
For a contact that exists in your Telegram address book you can use his phone number (str).
|
|
|
|
limit (``int``, *optional*):
|
|
Limits the number of messages to be retrieved.
|
|
By default, no limit is applied and all messages are returned.
|
|
|
|
offset (``int``, *optional*):
|
|
Sequential number of the first message to be returned..
|
|
Negative values are also accepted and become useful in case you set offset_id or offset_date.
|
|
|
|
offset_id (``int``, *optional*):
|
|
Identifier of the first message to be returned.
|
|
|
|
offset_date (``int``, *optional*):
|
|
Pass a date in Unix time as offset to retrieve only older messages starting from that date.
|
|
|
|
reverse (``bool``, *optional*):
|
|
Pass True to retrieve the messages in reversed order (from older to most recent).
|
|
|
|
Returns:
|
|
``Generator``: A generator yielding :obj:`Message` objects.
|
|
|
|
Raises:
|
|
RPCError: In case of a Telegram RPC error.
|
|
"""
|
|
offset_id = offset_id or (1 if reverse else 0)
|
|
current = 0
|
|
total = limit or (1 << 31) - 1
|
|
limit = min(100, total)
|
|
|
|
while True:
|
|
messages = self.get_history(
|
|
chat_id=chat_id,
|
|
limit=limit,
|
|
offset=offset,
|
|
offset_id=offset_id,
|
|
offset_date=offset_date,
|
|
reverse=reverse
|
|
).messages
|
|
|
|
if not messages:
|
|
return
|
|
|
|
offset_id = messages[-1].message_id + (1 if reverse else 0)
|
|
|
|
for message in messages:
|
|
yield message
|
|
|
|
current += 1
|
|
|
|
if current >= total:
|
|
return
|