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Except MessageIdsEmptyError when getting messages by ID

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This error may occur even when the IDs are not actually empty.
This commit is contained in:
Lonami Exo 2018-12-25 12:17:24 +01:00
parent f73ae42a03
commit a6c3c382b4
1 changed files with 10 additions and 3 deletions
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13
telethon/client/messages.py
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@ -8,7 +8,7 @@ from async_generator import async_generator, yield_
from .messageparse import MessageParseMethods
from .uploads import UploadMethods
from .buttons import ButtonMethods
from .. import helpers, utils
from .. import helpers, utils, errors
from ..tl import types, functions
__log__ = logging.getLogger(__name__)
@ -807,7 +807,12 @@ class MessageMethods(UploadMethods, ButtonMethods, MessageParseMethods):
from_id = None # By default, no need to validate from_id
if isinstance(entity, (types.InputChannel, types.InputPeerChannel)):
r = await self(functions.channels.GetMessagesRequest(entity, ids))
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:
@ -822,7 +827,9 @@ class MessageMethods(UploadMethods, ButtonMethods, MessageParseMethods):
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.
# 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