mirror of
https://github.com/LonamiWebs/Telethon.git
synced 2024-11-25 19:03:46 +03:00
7d4424ac2b
Closes #3916. The new MessageBox system is not designed with "albums come in the same updates container" in mind (in fact, there was a note about this). This version was also not intended to be published to PyPi, but it is, so a workaround must be made for events.Album to remain working. In essence, AlbumHack will always be used even if it technically did not need to be used previously. This will cause a small delay for those updates, but it should not be a major issue.
352 lines
13 KiB
Python
352 lines
13 KiB
Python
import asyncio
|
|
import time
|
|
import weakref
|
|
|
|
from .common import EventBuilder, EventCommon, name_inner_event
|
|
from .. import utils
|
|
from ..tl import types
|
|
from ..tl.custom.sendergetter import SenderGetter
|
|
|
|
_IGNORE_MAX_SIZE = 100 # len()
|
|
_IGNORE_MAX_AGE = 5 # seconds
|
|
|
|
# IDs to ignore, and when they were added. If it grows too large, we will
|
|
# remove old entries. Although it should generally not be bigger than 10,
|
|
# it may be possible some updates are not processed and thus not removed.
|
|
_IGNORE_DICT = {}
|
|
|
|
|
|
_HACK_DELAY = 0.5
|
|
|
|
|
|
class AlbumHack:
|
|
"""
|
|
When receiving an album from a different data-center, they will come in
|
|
separate `Updates`, so we need to temporarily remember them for a while
|
|
and only after produce the event.
|
|
|
|
Of course events are not designed for this kind of wizardy, so this is
|
|
a dirty hack that gets the job done.
|
|
|
|
When cleaning up the code base we may want to figure out a better way
|
|
to do this, or just leave the album problem to the users; the update
|
|
handling code is bad enough as it is.
|
|
"""
|
|
def __init__(self, client, event):
|
|
# It's probably silly to use a weakref here because this object is
|
|
# very short-lived but might as well try to do "the right thing".
|
|
self._client = weakref.ref(client)
|
|
self._event = event # parent event
|
|
self._due = client.loop.time() + _HACK_DELAY
|
|
|
|
client.loop.create_task(self.deliver_event())
|
|
|
|
def extend(self, messages):
|
|
client = self._client()
|
|
if client: # weakref may be dead
|
|
self._event.messages.extend(messages)
|
|
self._due = client.loop.time() + _HACK_DELAY
|
|
|
|
async def deliver_event(self):
|
|
while True:
|
|
client = self._client()
|
|
if client is None:
|
|
return # weakref is dead, nothing to deliver
|
|
|
|
diff = self._due - client.loop.time()
|
|
if diff <= 0:
|
|
# We've hit our due time, deliver event. It won't respect
|
|
# sequential updates but fixing that would just worsen this.
|
|
await client._dispatch_event(self._event)
|
|
return
|
|
|
|
del client # Clear ref and sleep until our due time
|
|
await asyncio.sleep(diff)
|
|
|
|
|
|
@name_inner_event
|
|
class Album(EventBuilder):
|
|
"""
|
|
Occurs whenever you receive an album. This event only exists
|
|
to ease dealing with an unknown amount of messages that belong
|
|
to the same album.
|
|
|
|
Example
|
|
.. code-block:: python
|
|
|
|
from telethon import events
|
|
|
|
@client.on(events.Album)
|
|
async def handler(event):
|
|
# Counting how many photos or videos the album has
|
|
print('Got an album with', len(event), 'items')
|
|
|
|
# Forwarding the album as a whole to some chat
|
|
event.forward_to(chat)
|
|
|
|
# Printing the caption
|
|
print(event.text)
|
|
|
|
# Replying to the fifth item in the album
|
|
await event.messages[4].reply('Cool!')
|
|
"""
|
|
|
|
def __init__(
|
|
self, chats=None, *, blacklist_chats=False, func=None):
|
|
super().__init__(chats, blacklist_chats=blacklist_chats, func=func)
|
|
|
|
@classmethod
|
|
def build(cls, update, others=None, self_id=None):
|
|
# TODO normally we'd only check updates if they come with other updates
|
|
# but MessageBox is not designed for this so others will always be None.
|
|
# In essence we always rely on AlbumHack rather than returning early if not others.
|
|
others = [update]
|
|
|
|
if isinstance(update,
|
|
(types.UpdateNewMessage, types.UpdateNewChannelMessage)):
|
|
if not isinstance(update.message, types.Message):
|
|
return # We don't care about MessageService's here
|
|
|
|
group = update.message.grouped_id
|
|
if group is None:
|
|
return # It must be grouped
|
|
|
|
# Check whether we are supposed to skip this update, and
|
|
# if we do also remove it from the ignore list since we
|
|
# won't need to check against it again.
|
|
if _IGNORE_DICT.pop(id(update), None):
|
|
return
|
|
|
|
# Check if the ignore list is too big, and if it is clean it
|
|
# TODO time could technically go backwards; time is not monotonic
|
|
now = time.time()
|
|
if len(_IGNORE_DICT) > _IGNORE_MAX_SIZE:
|
|
for i in [i for i, t in _IGNORE_DICT.items() if now - t > _IGNORE_MAX_AGE]:
|
|
del _IGNORE_DICT[i]
|
|
|
|
# Add the other updates to the ignore list
|
|
for u in others:
|
|
if u is not update:
|
|
_IGNORE_DICT[id(u)] = now
|
|
|
|
# Figure out which updates share the same group and use those
|
|
return cls.Event([
|
|
u.message for u in others
|
|
if (isinstance(u, (types.UpdateNewMessage, types.UpdateNewChannelMessage))
|
|
and isinstance(u.message, types.Message)
|
|
and u.message.grouped_id == group)
|
|
])
|
|
|
|
def filter(self, event):
|
|
# Albums with less than two messages require a few hacks to work.
|
|
if len(event.messages) > 1:
|
|
return super().filter(event)
|
|
|
|
class Event(EventCommon, SenderGetter):
|
|
"""
|
|
Represents the event of a new album.
|
|
|
|
Members:
|
|
messages (Sequence[`Message <telethon.tl.custom.message.Message>`]):
|
|
The list of messages belonging to the same album.
|
|
"""
|
|
def __init__(self, messages):
|
|
message = messages[0]
|
|
if not message.out and isinstance(message.peer_id, types.PeerUser):
|
|
# Incoming message (e.g. from a bot) has peer_id=us, and
|
|
# from_id=bot (the actual "chat" from a user's perspective).
|
|
chat_peer = message.from_id
|
|
else:
|
|
chat_peer = message.peer_id
|
|
|
|
super().__init__(chat_peer=chat_peer,
|
|
msg_id=message.id, broadcast=bool(message.post))
|
|
|
|
SenderGetter.__init__(self, message.sender_id)
|
|
self.messages = messages
|
|
|
|
def _set_client(self, client):
|
|
super()._set_client(client)
|
|
self._sender, self._input_sender = utils._get_entity_pair(
|
|
self.sender_id, self._entities, client._entity_cache)
|
|
|
|
for msg in self.messages:
|
|
msg._finish_init(client, self._entities, None)
|
|
|
|
if len(self.messages) == 1:
|
|
# This will require hacks to be a proper album event
|
|
hack = client._albums.get(self.grouped_id)
|
|
if hack is None:
|
|
client._albums[self.grouped_id] = AlbumHack(client, self)
|
|
else:
|
|
hack.extend(self.messages)
|
|
|
|
@property
|
|
def grouped_id(self):
|
|
"""
|
|
The shared ``grouped_id`` between all the messages.
|
|
"""
|
|
return self.messages[0].grouped_id
|
|
|
|
@property
|
|
def text(self):
|
|
"""
|
|
The message text of the first photo with a caption,
|
|
formatted using the client's default parse mode.
|
|
"""
|
|
return next((m.text for m in self.messages if m.text), '')
|
|
|
|
@property
|
|
def raw_text(self):
|
|
"""
|
|
The raw message text of the first photo
|
|
with a caption, ignoring any formatting.
|
|
"""
|
|
return next((m.raw_text for m in self.messages if m.raw_text), '')
|
|
|
|
@property
|
|
def is_reply(self):
|
|
"""
|
|
`True` if the album is a reply to some other message.
|
|
|
|
Remember that you can access the ID of the message
|
|
this one is replying to through `reply_to_msg_id`,
|
|
and the `Message` object with `get_reply_message()`.
|
|
"""
|
|
# Each individual message in an album all reply to the same message
|
|
return self.messages[0].is_reply
|
|
|
|
@property
|
|
def forward(self):
|
|
"""
|
|
The `Forward <telethon.tl.custom.forward.Forward>`
|
|
information for the first message in the album if it was forwarded.
|
|
"""
|
|
# Each individual message in an album all reply to the same message
|
|
return self.messages[0].forward
|
|
|
|
# endregion Public Properties
|
|
|
|
# region Public Methods
|
|
|
|
async def get_reply_message(self):
|
|
"""
|
|
The `Message <telethon.tl.custom.message.Message>`
|
|
that this album is replying to, or `None`.
|
|
|
|
The result will be cached after its first use.
|
|
"""
|
|
return await self.messages[0].get_reply_message()
|
|
|
|
async def respond(self, *args, **kwargs):
|
|
"""
|
|
Responds to the album (not as a reply). Shorthand for
|
|
`telethon.client.messages.MessageMethods.send_message`
|
|
with ``entity`` already set.
|
|
"""
|
|
return await self.messages[0].respond(*args, **kwargs)
|
|
|
|
async def reply(self, *args, **kwargs):
|
|
"""
|
|
Replies to the first photo in the album (as a reply). Shorthand
|
|
for `telethon.client.messages.MessageMethods.send_message`
|
|
with both ``entity`` and ``reply_to`` already set.
|
|
"""
|
|
return await self.messages[0].reply(*args, **kwargs)
|
|
|
|
async def forward_to(self, *args, **kwargs):
|
|
"""
|
|
Forwards the entire album. Shorthand for
|
|
`telethon.client.messages.MessageMethods.forward_messages`
|
|
with both ``messages`` and ``from_peer`` already set.
|
|
"""
|
|
if self._client:
|
|
kwargs['messages'] = self.messages
|
|
kwargs['from_peer'] = await self.get_input_chat()
|
|
return await self._client.forward_messages(*args, **kwargs)
|
|
|
|
async def edit(self, *args, **kwargs):
|
|
"""
|
|
Edits the first caption or the message, or the first messages'
|
|
caption if no caption is set, iff it's outgoing. Shorthand for
|
|
`telethon.client.messages.MessageMethods.edit_message`
|
|
with both ``entity`` and ``message`` already set.
|
|
|
|
Returns `None` if the message was incoming,
|
|
or the edited `Message` otherwise.
|
|
|
|
.. note::
|
|
|
|
This is different from `client.edit_message
|
|
<telethon.client.messages.MessageMethods.edit_message>`
|
|
and **will respect** the previous state of the message.
|
|
For example, if the message didn't have a link preview,
|
|
the edit won't add one by default, and you should force
|
|
it by setting it to `True` if you want it.
|
|
|
|
This is generally the most desired and convenient behaviour,
|
|
and will work for link previews and message buttons.
|
|
"""
|
|
for msg in self.messages:
|
|
if msg.raw_text:
|
|
return await msg.edit(*args, **kwargs)
|
|
|
|
return await self.messages[0].edit(*args, **kwargs)
|
|
|
|
async def delete(self, *args, **kwargs):
|
|
"""
|
|
Deletes the entire album. You're responsible for checking whether
|
|
you have the permission to do so, or to except the error otherwise.
|
|
Shorthand for
|
|
`telethon.client.messages.MessageMethods.delete_messages` with
|
|
``entity`` and ``message_ids`` already set.
|
|
"""
|
|
if self._client:
|
|
return await self._client.delete_messages(
|
|
await self.get_input_chat(), self.messages,
|
|
*args, **kwargs
|
|
)
|
|
|
|
async def mark_read(self):
|
|
"""
|
|
Marks the entire album as read. Shorthand for
|
|
`client.send_read_acknowledge()
|
|
<telethon.client.messages.MessageMethods.send_read_acknowledge>`
|
|
with both ``entity`` and ``message`` already set.
|
|
"""
|
|
if self._client:
|
|
await self._client.send_read_acknowledge(
|
|
await self.get_input_chat(), max_id=self.messages[-1].id)
|
|
|
|
async def pin(self, *, notify=False):
|
|
"""
|
|
Pins the first photo in the album. Shorthand for
|
|
`telethon.client.messages.MessageMethods.pin_message`
|
|
with both ``entity`` and ``message`` already set.
|
|
"""
|
|
return await self.messages[0].pin(notify=notify)
|
|
|
|
def __len__(self):
|
|
"""
|
|
Return the amount of messages in the album.
|
|
|
|
Equivalent to ``len(self.messages)``.
|
|
"""
|
|
return len(self.messages)
|
|
|
|
def __iter__(self):
|
|
"""
|
|
Iterate over the messages in the album.
|
|
|
|
Equivalent to ``iter(self.messages)``.
|
|
"""
|
|
return iter(self.messages)
|
|
|
|
def __getitem__(self, n):
|
|
"""
|
|
Access the n'th message in the album.
|
|
|
|
Equivalent to ``event.messages[n]``.
|
|
"""
|
|
return self.messages[n]
|