mirror of
https://github.com/LonamiWebs/Telethon.git
synced 2024-09-21 19:28:54 +03:00
847 lines
33 KiB
Python
847 lines
33 KiB
Python
import asyncio
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import itertools
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import logging
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import time
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from async_generator import async_generator, yield_
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from .messageparse import MessageParseMethods
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from .uploads import UploadMethods
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from .buttons import ButtonMethods
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from .. import helpers, utils, errors
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from ..tl import types, functions
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__log__ = logging.getLogger(__name__)
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class MessageMethods(UploadMethods, ButtonMethods, MessageParseMethods):
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# region Public methods
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# region Message retrieval
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@async_generator
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async def iter_messages(
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self, entity, limit=None, *, offset_date=None, offset_id=0,
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max_id=0, min_id=0, add_offset=0, search=None, filter=None,
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from_user=None, batch_size=100, wait_time=None, ids=None,
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reverse=False, _total=None):
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"""
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Iterator over the message history for the specified entity.
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If either `search`, `filter` or `from_user` are provided,
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:tl:`messages.Search` will be used instead of :tl:`messages.getHistory`.
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Args:
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entity (`entity`):
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The entity from whom to retrieve the message history.
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It may be ``None`` to perform a global search, or
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to get messages by their ID from no particular chat.
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Note that some of the offsets will not work if this
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is the case.
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Note that if you want to perform a global search,
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you **must** set a non-empty `search` string.
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limit (`int` | `None`, optional):
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Number of messages to be retrieved. Due to limitations with
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the API retrieving more than 3000 messages will take longer
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than half a minute (or even more based on previous calls).
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The limit may also be ``None``, which would eventually return
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the whole history.
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offset_date (`datetime`):
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Offset date (messages *previous* to this date will be
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retrieved). Exclusive.
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offset_id (`int`):
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Offset message ID (only messages *previous* to the given
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ID will be retrieved). Exclusive.
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max_id (`int`):
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All the messages with a higher (newer) ID or equal to this will
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be excluded.
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min_id (`int`):
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All the messages with a lower (older) ID or equal to this will
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be excluded.
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add_offset (`int`):
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Additional message offset (all of the specified offsets +
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this offset = older messages).
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search (`str`):
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The string to be used as a search query.
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filter (:tl:`MessagesFilter` | `type`):
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The filter to use when returning messages. For instance,
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:tl:`InputMessagesFilterPhotos` would yield only messages
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containing photos.
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from_user (`entity`):
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Only messages from this user will be returned.
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This parameter will be ignored if it is not an user.
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batch_size (`int`):
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Messages will be returned in chunks of this size (100 is
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the maximum). While it makes no sense to modify this value,
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you are still free to do so.
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wait_time (`int`):
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Wait time between different :tl:`GetHistoryRequest`. Use this
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parameter to avoid hitting the ``FloodWaitError`` as needed.
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If left to ``None``, it will default to 1 second only if
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the limit is higher than 3000.
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ids (`int`, `list`):
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A single integer ID (or several IDs) for the message that
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should be returned. This parameter takes precedence over
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the rest (which will be ignored if this is set). This can
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for instance be used to get the message with ID 123 from
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a channel. Note that if the message doesn't exist, ``None``
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will appear in its place, so that zipping the list of IDs
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with the messages can match one-to-one.
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.. note::
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At the time of writing, Telegram will **not** return
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:tl:`MessageEmpty` for :tl:`InputMessageReplyTo` IDs that
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failed (i.e. the message is not replying to any, or is
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replying to a deleted message). This means that it is
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**not** possible to match messages one-by-one, so be
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careful if you use non-integers in this parameter.
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reverse (`bool`, optional):
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If set to ``True``, the messages will be returned in reverse
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order (from oldest to newest, instead of the default newest
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to oldest). This also means that the meaning of `offset_id`
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and `offset_date` parameters is reversed, although they will
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still be exclusive. `min_id` becomes equivalent to `offset_id`
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instead of being `max_id` as well since messages are returned
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in ascending order.
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You cannot use this if both `entity` and `ids` are ``None``.
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_total (`list`, optional):
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A single-item list to pass the total parameter by reference.
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Yields:
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Instances of `telethon.tl.custom.message.Message`.
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Notes:
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Telegram's flood wait limit for :tl:`GetHistoryRequest` seems to
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be around 30 seconds per 3000 messages, therefore a sleep of 1
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second is the default for this limit (or above). You may need
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an higher limit, so you're free to set the ``batch_size`` that
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you think may be good.
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"""
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# Note that entity being ``None`` is intended to get messages by
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# ID under no specific chat, and also to request a global search.
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if entity:
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entity = await self.get_input_entity(entity)
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if ids:
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if not utils.is_list_like(ids):
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ids = (ids,)
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if reverse:
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ids = list(reversed(ids))
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async for x in self._iter_ids(entity, ids, total=_total):
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await yield_(x)
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return
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# Telegram doesn't like min_id/max_id. If these IDs are low enough
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# (starting from last_id - 100), the request will return nothing.
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#
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# We can emulate their behaviour locally by setting offset = max_id
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# and simply stopping once we hit a message with ID <= min_id.
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if reverse:
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offset_id = max(offset_id, min_id)
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if offset_id and max_id:
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if max_id - offset_id <= 1:
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return
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if not max_id:
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max_id = float('inf')
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else:
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offset_id = max(offset_id, max_id)
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if offset_id and min_id:
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if offset_id - min_id <= 1:
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return
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if reverse:
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if offset_id:
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offset_id += 1
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else:
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offset_id = 1
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if not from_user:
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from_id = None
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else:
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from_id = await self.get_input_entity(from_user)
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if not isinstance(from_id, (
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types.InputPeerUser, types.InputPeerSelf)):
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from_id = None # Ignore from_user unless it's a user
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limit = float('inf') if limit is None else int(limit)
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if not entity:
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if reverse:
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raise ValueError('Cannot reverse global search')
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reverse = None
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request = functions.messages.SearchGlobalRequest(
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q=search or '',
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offset_date=offset_date,
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offset_peer=types.InputPeerEmpty(),
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offset_id=offset_id,
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limit=1
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)
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elif search is not None or filter or from_id:
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if filter is None:
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filter = types.InputMessagesFilterEmpty()
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request = functions.messages.SearchRequest(
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peer=entity,
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q=search or '',
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filter=filter() if isinstance(filter, type) else filter,
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min_date=None,
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max_date=offset_date,
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offset_id=offset_id,
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add_offset=add_offset,
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limit=0, # Search actually returns 0 items if we ask it to
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max_id=0,
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min_id=0,
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hash=0,
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from_id=from_id
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)
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if not isinstance(entity, (
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types.InputPeerUser, types.InputPeerSelf)):
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from_id = None
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else:
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# Telegram completely ignores `from_id` in private
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# chats, so we need to do this check client-side.
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if isinstance(from_id, types.InputPeerSelf):
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from_id = await self.get_peer_id('me')
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else:
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from_id = from_id.user_id
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else:
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request = functions.messages.GetHistoryRequest(
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peer=entity,
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limit=1,
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offset_date=offset_date,
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offset_id=offset_id,
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min_id=0,
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max_id=0,
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add_offset=add_offset,
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hash=0
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)
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if limit == 0:
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if not _total:
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return
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# No messages, but we still need to know the total message count
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result = await self(request)
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if isinstance(result, types.messages.MessagesNotModified):
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_total[0] = result.count
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else:
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_total[0] = getattr(result, 'count', len(result.messages))
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return
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if wait_time is None:
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wait_time = 1 if limit > 3000 else 0
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have = 0
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last_id = 0 if reverse else float('inf')
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# Telegram has a hard limit of 100.
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# We don't need to fetch 100 if the limit is less.
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batch_size = min(max(batch_size, 1), min(100, limit))
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# Use a negative offset to work around reversing the results
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if reverse:
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request.add_offset -= batch_size
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while have < limit:
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start = time.time()
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request.limit = min(limit - have, batch_size)
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if reverse and request.limit != batch_size:
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# Last batch needs special care if we're on reverse
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request.add_offset += batch_size - request.limit + 1
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r = await self(request)
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if _total:
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_total[0] = getattr(r, 'count', len(r.messages))
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entities = {utils.get_peer_id(x): x
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for x in itertools.chain(r.users, r.chats)}
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messages = reversed(r.messages) if reverse else r.messages
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for message in messages:
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if (isinstance(message, types.MessageEmpty)
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or from_id and message.from_id != from_id):
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continue
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if reverse is None:
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pass
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elif reverse:
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if message.id <= last_id or message.id >= max_id:
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return
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else:
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if message.id >= last_id or message.id <= min_id:
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return
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# There has been reports that on bad connections this method
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# was returning duplicated IDs sometimes. Using ``last_id``
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# is an attempt to avoid these duplicates, since the message
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# IDs are returned in descending order (or asc if reverse).
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last_id = message.id
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message._finish_init(self, entities, entity)
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await yield_(message)
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have += 1
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if len(r.messages) < request.limit:
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break
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# Find the first message that's not empty (in some rare cases
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# it can happen that the last message is :tl:`MessageEmpty`)
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last_message = None
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messages = r.messages if reverse else reversed(r.messages)
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for m in messages:
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if not isinstance(m, types.MessageEmpty):
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last_message = m
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break
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if last_message is None:
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# There are some cases where all the messages we get start
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# being empty. This can happen on migrated mega-groups if
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# the history was cleared, and we're using search. Telegram
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# acts incredibly weird sometimes. Messages are returned but
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# only "empty", not their contents. If this is the case we
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# should just give up since there won't be any new Message.
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break
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else:
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request.offset_id = last_message.id
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if isinstance(request, functions.messages.SearchRequest):
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request.max_date = last_message.date
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else:
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# getHistory and searchGlobal call it offset_date
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request.offset_date = last_message.date
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if isinstance(request, functions.messages.SearchGlobalRequest):
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request.offset_peer = last_message.input_chat
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elif reverse:
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# We want to skip the one we already have
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request.add_offset -= 1
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await asyncio.sleep(
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max(wait_time - (time.time() - start), 0), loop=self._loop)
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async def get_messages(self, *args, **kwargs):
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"""
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Same as `iter_messages`, but returns a
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`TotalList <telethon.helpers.TotalList>` instead.
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If the `limit` is not set, it will be 1 by default unless both
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`min_id` **and** `max_id` are set (as *named* arguments), in
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which case the entire range will be returned.
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This is so because any integer limit would be rather arbitrary and
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it's common to only want to fetch one message, but if a range is
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specified it makes sense that it should return the entirety of it.
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If `ids` is present in the *named* arguments and is not a list,
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a single :tl:`Message` will be returned for convenience instead
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of a list.
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"""
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total = [0]
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kwargs['_total'] = total
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if len(args) == 1 and 'limit' not in kwargs:
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if 'min_id' in kwargs and 'max_id' in kwargs:
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kwargs['limit'] = None
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else:
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kwargs['limit'] = 1
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msgs = helpers.TotalList()
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async for x in self.iter_messages(*args, **kwargs):
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msgs.append(x)
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msgs.total = total[0]
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if 'ids' in kwargs and not utils.is_list_like(kwargs['ids']):
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# Check for empty list to handle InputMessageReplyTo
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return msgs[0] if msgs else None
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return msgs
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# endregion
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# region Message sending/editing/deleting
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async def send_message(
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self, entity, message='', *, reply_to=None,
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parse_mode=(), link_preview=True, file=None,
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force_document=False, clear_draft=False, buttons=None,
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silent=None):
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"""
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Sends the given message to the specified entity (user/chat/channel).
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The default parse mode is the same as the official applications
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(a custom flavour of markdown). ``**bold**, `code` or __italic__``
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are available. In addition you can send ``[links](https://example.com)``
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and ``[mentions](@username)`` (or using IDs like in the Bot API:
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``[mention](tg://user?id=123456789)``) and ``pre`` blocks with three
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backticks.
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Sending a ``/start`` command with a parameter (like ``?start=data``)
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is also done through this method. Simply send ``'/start data'`` to
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the bot.
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Args:
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entity (`entity`):
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To who will it be sent.
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message (`str` | :tl:`Message`):
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The message to be sent, or another message object to resend.
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The maximum length for a message is 35,000 bytes or 4,096
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characters. Longer messages will not be sliced automatically,
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and you should slice them manually if the text to send is
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longer than said length.
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reply_to (`int` | :tl:`Message`, optional):
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Whether to reply to a message or not. If an integer is provided,
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it should be the ID of the message that it should reply to.
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parse_mode (`object`, optional):
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See the `TelegramClient.parse_mode` property for allowed
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values. Markdown parsing will be used by default.
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link_preview (`bool`, optional):
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Should the link preview be shown?
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file (`file`, optional):
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Sends a message with a file attached (e.g. a photo,
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video, audio or document). The ``message`` may be empty.
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force_document (`bool`, optional):
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Whether to send the given file as a document or not.
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clear_draft (`bool`, optional):
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Whether the existing draft should be cleared or not.
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Has no effect when sending a file.
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buttons (`list`, `custom.Button <telethon.tl.custom.button.Button>`, :tl:`KeyboardButton`):
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The matrix (list of lists), row list or button to be shown
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after sending the message. This parameter will only work if
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you have signed in as a bot. You can also pass your own
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:tl:`ReplyMarkup` here.
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All the following limits apply together:
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* There can be 100 buttons at most (any more are ignored).
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* There can be 8 buttons per row at most (more are ignored).
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* The maximum callback data per button is 64 bytes.
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* The maximum data that can be embedded in total is just
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over 4KB, shared between inline callback data and text.
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silent (`bool`, optional):
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Whether the message should notify people in a broadcast
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channel or not. Defaults to ``False``, which means it will
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notify them. Set it to ``True`` to alter this behaviour.
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Returns:
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The sent `custom.Message <telethon.tl.custom.message.Message>`.
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"""
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if file is not None:
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return await self.send_file(
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entity, file, caption=message, reply_to=reply_to,
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parse_mode=parse_mode, force_document=force_document,
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buttons=buttons
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)
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elif not message:
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raise ValueError(
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'The message cannot be empty unless a file is provided'
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)
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entity = await self.get_input_entity(entity)
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if isinstance(message, types.Message):
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if buttons is None:
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markup = message.reply_markup
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else:
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markup = self.build_reply_markup(buttons)
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if silent is None:
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silent = message.silent
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if (message.media and not isinstance(
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message.media, types.MessageMediaWebPage)):
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return await self.send_file(
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entity,
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message.media,
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caption=message.message,
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silent=silent,
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reply_to=reply_to,
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buttons=markup,
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entities=message.entities
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)
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request = functions.messages.SendMessageRequest(
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peer=entity,
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message=message.message or '',
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silent=silent,
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reply_to_msg_id=utils.get_message_id(reply_to),
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reply_markup=markup,
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entities=message.entities,
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clear_draft=clear_draft,
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no_webpage=not isinstance(
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message.media, types.MessageMediaWebPage)
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)
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message = message.message
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else:
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message, msg_ent = await self._parse_message_text(message,
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parse_mode)
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request = functions.messages.SendMessageRequest(
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peer=entity,
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message=message,
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entities=msg_ent,
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no_webpage=not link_preview,
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reply_to_msg_id=utils.get_message_id(reply_to),
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clear_draft=clear_draft,
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silent=silent,
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reply_markup=self.build_reply_markup(buttons)
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)
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result = await self(request)
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if isinstance(result, types.UpdateShortSentMessage):
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to_id, cls = utils.resolve_id(utils.get_peer_id(entity))
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message = types.Message(
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id=result.id,
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to_id=cls(to_id),
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message=message,
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date=result.date,
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out=result.out,
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media=result.media,
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entities=result.entities
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)
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message._finish_init(self, {}, entity)
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|
return message
|
|
|
|
return self._get_response_message(request, result, entity)
|
|
|
|
async def forward_messages(self, entity, messages, from_peer=None,
|
|
*, silent=None):
|
|
"""
|
|
Forwards the given message(s) to the specified entity.
|
|
|
|
Args:
|
|
entity (`entity`):
|
|
To which entity the message(s) will be forwarded.
|
|
|
|
messages (`list` | `int` | :tl:`Message`):
|
|
The message(s) to forward, or their integer IDs.
|
|
|
|
from_peer (`entity`):
|
|
If the given messages are integer IDs and not instances
|
|
of the ``Message`` class, this *must* be specified in
|
|
order for the forward to work.
|
|
|
|
silent (`bool`, optional):
|
|
Whether the message should notify people in a broadcast
|
|
channel or not. Defaults to ``False``, which means it will
|
|
notify them. Set it to ``True`` to alter this behaviour.
|
|
|
|
Returns:
|
|
The list of forwarded `telethon.tl.custom.message.Message`,
|
|
or a single one if a list wasn't provided as input.
|
|
|
|
Note that if all messages are invalid (i.e. deleted) the call
|
|
will fail with ``MessageIdInvalidError``. If only some are
|
|
invalid, the list will have ``None`` instead of those messages.
|
|
"""
|
|
single = not utils.is_list_like(messages)
|
|
if single:
|
|
messages = (messages,)
|
|
|
|
if not from_peer:
|
|
try:
|
|
# On private chats (to_id = PeerUser), if the message is
|
|
# not outgoing, we actually need to use "from_id" to get
|
|
# the conversation on which the message was sent.
|
|
from_peer = next(
|
|
m.from_id
|
|
if not m.out and isinstance(m.to_id, types.PeerUser)
|
|
else m.to_id for m in messages
|
|
if isinstance(m, types.Message)
|
|
)
|
|
except StopIteration:
|
|
raise ValueError(
|
|
'from_chat must be given if integer IDs are used'
|
|
)
|
|
|
|
req = functions.messages.ForwardMessagesRequest(
|
|
from_peer=from_peer,
|
|
id=[m if isinstance(m, int) else m.id for m in messages],
|
|
to_peer=entity,
|
|
silent=silent
|
|
)
|
|
result = await self(req)
|
|
if isinstance(result, (types.Updates, types.UpdatesCombined)):
|
|
entities = {utils.get_peer_id(x): x
|
|
for x in itertools.chain(result.users, result.chats)}
|
|
else:
|
|
entities = {}
|
|
|
|
random_to_id = {}
|
|
id_to_message = {}
|
|
for update in result.updates:
|
|
if isinstance(update, types.UpdateMessageID):
|
|
random_to_id[update.random_id] = update.id
|
|
elif isinstance(update, (
|
|
types.UpdateNewMessage, types.UpdateNewChannelMessage)):
|
|
update.message._finish_init(self, entities, entity)
|
|
id_to_message[update.message.id] = update.message
|
|
|
|
# Trying to forward only deleted messages causes `MESSAGE_ID_INVALID`
|
|
# but forwarding valid and invalid messages in the same call makes the
|
|
# call succeed, although the API won't return those messages thus
|
|
# `random_to_id[rnd]` would `KeyError`. Check the key beforehand.
|
|
result = [id_to_message[random_to_id[rnd]]
|
|
if rnd in random_to_id else None
|
|
for rnd in req.random_id]
|
|
|
|
return result[0] if single else result
|
|
|
|
async def edit_message(
|
|
self, entity, message=None, text=None,
|
|
*, parse_mode=(), link_preview=True, file=None,
|
|
buttons=None):
|
|
"""
|
|
Edits the given message ID (to change its contents or disable preview).
|
|
|
|
Args:
|
|
entity (`entity` | :tl:`Message`):
|
|
From which chat to edit the message. This can also be
|
|
the message to be edited, and the entity will be inferred
|
|
from it, so the next parameter will be assumed to be the
|
|
message text.
|
|
|
|
message (`int` | :tl:`Message` | `str`):
|
|
The ID of the message (or :tl:`Message` itself) to be edited.
|
|
If the `entity` was a :tl:`Message`, then this message will be
|
|
treated as the new text.
|
|
|
|
text (`str`, optional):
|
|
The new text of the message. Does nothing if the `entity`
|
|
was a :tl:`Message`.
|
|
|
|
parse_mode (`object`, optional):
|
|
See the `TelegramClient.parse_mode` property for allowed
|
|
values. Markdown parsing will be used by default.
|
|
|
|
link_preview (`bool`, optional):
|
|
Should the link preview be shown?
|
|
|
|
file (`str` | `bytes` | `file` | `media`, optional):
|
|
The file object that should replace the existing media
|
|
in the message.
|
|
|
|
buttons (`list`, `custom.Button <telethon.tl.custom.button.Button>`, :tl:`KeyboardButton`):
|
|
The matrix (list of lists), row list or button to be shown
|
|
after sending the message. This parameter will only work if
|
|
you have signed in as a bot. You can also pass your own
|
|
:tl:`ReplyMarkup` here.
|
|
|
|
Examples:
|
|
|
|
>>> client = ...
|
|
>>> message = client.send_message('username', 'hello')
|
|
>>>
|
|
>>> client.edit_message('username', message, 'hello!')
|
|
>>> # or
|
|
>>> client.edit_message('username', message.id, 'Hello')
|
|
>>> # or
|
|
>>> client.edit_message(message, 'Hello!')
|
|
|
|
Raises:
|
|
``MessageAuthorRequiredError`` if you're not the author of the
|
|
message but tried editing it anyway.
|
|
|
|
``MessageNotModifiedError`` if the contents of the message were
|
|
not modified at all.
|
|
|
|
Returns:
|
|
The edited `telethon.tl.custom.message.Message`.
|
|
"""
|
|
if isinstance(entity, types.Message):
|
|
text = message # Shift the parameters to the right
|
|
message = entity
|
|
entity = entity.to_id
|
|
|
|
entity = await self.get_input_entity(entity)
|
|
text, msg_entities = await self._parse_message_text(text, parse_mode)
|
|
file_handle, media = await self._file_to_media(file)
|
|
request = functions.messages.EditMessageRequest(
|
|
peer=entity,
|
|
id=utils.get_message_id(message),
|
|
message=text,
|
|
no_webpage=not link_preview,
|
|
entities=msg_entities,
|
|
media=media,
|
|
reply_markup=self.build_reply_markup(buttons)
|
|
)
|
|
msg = self._get_response_message(request, await self(request), entity)
|
|
await self._cache_media(msg, file, file_handle)
|
|
return msg
|
|
|
|
async def delete_messages(self, entity, message_ids, *, revoke=True):
|
|
"""
|
|
Deletes a message from a chat, optionally "for everyone".
|
|
|
|
Args:
|
|
entity (`entity`):
|
|
From who the message will be deleted. This can actually
|
|
be ``None`` for normal chats, but **must** be present
|
|
for channels and megagroups.
|
|
|
|
message_ids (`list` | `int` | :tl:`Message`):
|
|
The IDs (or ID) or messages to be deleted.
|
|
|
|
revoke (`bool`, optional):
|
|
Whether the message should be deleted for everyone or not.
|
|
By default it has the opposite behaviour of official clients,
|
|
and it will delete the message for everyone.
|
|
This has no effect on channels or megagroups.
|
|
|
|
Returns:
|
|
A list of :tl:`AffectedMessages`, each item being the result
|
|
for the delete calls of the messages in chunks of 100 each.
|
|
"""
|
|
if not utils.is_list_like(message_ids):
|
|
message_ids = (message_ids,)
|
|
|
|
message_ids = (
|
|
m.id if isinstance(m, (
|
|
types.Message, types.MessageService, types.MessageEmpty))
|
|
else int(m) for m in message_ids
|
|
)
|
|
|
|
entity = await self.get_input_entity(entity) if entity else None
|
|
if isinstance(entity, types.InputPeerChannel):
|
|
return await self([functions.channels.DeleteMessagesRequest(
|
|
entity, list(c)) for c in utils.chunks(message_ids)])
|
|
else:
|
|
return await self([functions.messages.DeleteMessagesRequest(
|
|
list(c), revoke) for c in utils.chunks(message_ids)])
|
|
|
|
# endregion
|
|
|
|
# region Miscellaneous
|
|
|
|
async def send_read_acknowledge(
|
|
self, entity, message=None, *, max_id=None, clear_mentions=False):
|
|
"""
|
|
Sends a "read acknowledge" (i.e., notifying the given peer that we've
|
|
read their messages, also known as the "double check").
|
|
|
|
This effectively marks a message as read (or more than one) in the
|
|
given conversation.
|
|
|
|
If neither message nor maximum ID are provided, all messages will be
|
|
marked as read by assuming that ``max_id = 0``.
|
|
|
|
Args:
|
|
entity (`entity`):
|
|
The chat where these messages are located.
|
|
|
|
message (`list` | :tl:`Message`):
|
|
Either a list of messages or a single message.
|
|
|
|
max_id (`int`):
|
|
Overrides messages, until which message should the
|
|
acknowledge should be sent.
|
|
|
|
clear_mentions (`bool`):
|
|
Whether the mention badge should be cleared (so that
|
|
there are no more mentions) or not for the given entity.
|
|
|
|
If no message is provided, this will be the only action
|
|
taken.
|
|
"""
|
|
if max_id is None:
|
|
if not message:
|
|
max_id = 0
|
|
else:
|
|
if utils.is_list_like(message):
|
|
max_id = max(msg.id for msg in message)
|
|
else:
|
|
max_id = message.id
|
|
|
|
entity = await self.get_input_entity(entity)
|
|
if clear_mentions:
|
|
await self(functions.messages.ReadMentionsRequest(entity))
|
|
if max_id is None:
|
|
return True
|
|
|
|
if max_id is not None:
|
|
if isinstance(entity, types.InputPeerChannel):
|
|
return await self(functions.channels.ReadHistoryRequest(
|
|
entity, max_id=max_id))
|
|
else:
|
|
return await self(functions.messages.ReadHistoryRequest(
|
|
entity, max_id=max_id))
|
|
|
|
return False
|
|
|
|
# endregion
|
|
|
|
# endregion
|
|
|
|
# region Private methods
|
|
|
|
@async_generator
|
|
async def _iter_ids(self, entity, ids, total):
|
|
"""
|
|
Special case for `iter_messages` when it should only fetch some IDs.
|
|
"""
|
|
if total:
|
|
total[0] = len(ids)
|
|
|
|
from_id = None # By default, no need to validate from_id
|
|
if isinstance(entity, (types.InputChannel, types.InputPeerChannel)):
|
|
try:
|
|
r = await self(
|
|
functions.channels.GetMessagesRequest(entity, ids))
|
|
except errors.MessageIdsEmptyError:
|
|
# All IDs were invalid, use a dummy result
|
|
r = types.messages.MessagesNotModified(len(ids))
|
|
else:
|
|
r = await self(functions.messages.GetMessagesRequest(ids))
|
|
if entity:
|
|
from_id = utils.get_peer_id(entity)
|
|
|
|
if isinstance(r, types.messages.MessagesNotModified):
|
|
for _ in ids:
|
|
await yield_(None)
|
|
return
|
|
|
|
entities = {utils.get_peer_id(x): x
|
|
for x in itertools.chain(r.users, r.chats)}
|
|
|
|
# Telegram seems to return the messages in the order in which
|
|
# we asked them for, so we don't need to check it ourselves,
|
|
# unless some messages were invalid in which case Telegram
|
|
# may decide to not send them at all.
|
|
#
|
|
# The passed message IDs may not belong to the desired entity
|
|
# since the user can enter arbitrary numbers which can belong to
|
|
# arbitrary chats. Validate these unless ``from_id is None``.
|
|
for message in r.messages:
|
|
if isinstance(message, types.MessageEmpty) or (
|
|
from_id and message.chat_id != from_id):
|
|
await yield_(None)
|
|
else:
|
|
message._finish_init(self, entities, entity)
|
|
await yield_(message)
|
|
|
|
# endregion
|