Telethon/telethon/client/chats.py
2019-06-28 20:44:06 +02:00

771 lines
28 KiB
Python

import asyncio
import itertools
import string
import typing
from .. import helpers, utils, hints
from ..requestiter import RequestIter
from ..tl import types, functions, custom
if typing.TYPE_CHECKING:
from .telegramclient import TelegramClient
_MAX_PARTICIPANTS_CHUNK_SIZE = 200
_MAX_ADMIN_LOG_CHUNK_SIZE = 100
_MAX_PROFILE_PHOTO_CHUNK_SIZE = 100
class _ChatAction:
_str_mapping = {
'typing': types.SendMessageTypingAction(),
'contact': types.SendMessageChooseContactAction(),
'game': types.SendMessageGamePlayAction(),
'location': types.SendMessageGeoLocationAction(),
'record-audio': types.SendMessageRecordAudioAction(),
'record-voice': types.SendMessageRecordAudioAction(), # alias
'record-round': types.SendMessageRecordRoundAction(),
'record-video': types.SendMessageRecordVideoAction(),
'audio': types.SendMessageUploadAudioAction(1),
'voice': types.SendMessageUploadAudioAction(1), # alias
'round': types.SendMessageUploadRoundAction(1),
'video': types.SendMessageUploadVideoAction(1),
'photo': types.SendMessageUploadPhotoAction(1),
'document': types.SendMessageUploadDocumentAction(1),
'file': types.SendMessageUploadDocumentAction(1), # alias
'song': types.SendMessageUploadDocumentAction(1), # alias
'cancel': types.SendMessageCancelAction()
}
def __init__(self, client, chat, action, *, delay, auto_cancel):
self._client = client
self._chat = chat
self._action = action
self._delay = delay
self._auto_cancel = auto_cancel
self._request = None
self._task = None
self._running = False
async def __aenter__(self):
self._chat = await self._client.get_input_entity(self._chat)
# Since `self._action` is passed by reference we can avoid
# recreating the request all the time and still modify
# `self._action.progress` directly in `progress`.
self._request = functions.messages.SetTypingRequest(
self._chat, self._action)
self._running = True
self._task = self._client.loop.create_task(self._update())
async def __aexit__(self, *args):
self._running = False
if self._task:
self._task.cancel()
try:
await self._task
except asyncio.CancelledError:
pass
self._task = None
__enter__ = helpers._sync_enter
__exit__ = helpers._sync_exit
async def _update(self):
try:
while self._running:
await self._client(self._request)
await asyncio.sleep(self._delay)
except ConnectionError:
pass
except asyncio.CancelledError:
if self._auto_cancel:
await self._client(functions.messages.SetTypingRequest(
self._chat, types.SendMessageCancelAction()))
def progress(self, current, total):
if hasattr(self._action, 'progress'):
self._action.progress = 100 * round(current / total)
class _ParticipantsIter(RequestIter):
async def _init(self, entity, filter, search, aggressive):
if isinstance(filter, type):
if filter in (types.ChannelParticipantsBanned,
types.ChannelParticipantsKicked,
types.ChannelParticipantsSearch,
types.ChannelParticipantsContacts):
# These require a `q` parameter (support types for convenience)
filter = filter('')
else:
filter = filter()
entity = await self.client.get_input_entity(entity)
if search and (filter
or not isinstance(entity, types.InputPeerChannel)):
# We need to 'search' ourselves unless we have a PeerChannel
search = search.casefold()
self.filter_entity = lambda ent: (
search in utils.get_display_name(ent).casefold() or
search in (getattr(ent, 'username', None) or '').casefold()
)
else:
self.filter_entity = lambda ent: True
# Only used for channels, but we should always set the attribute
self.requests = []
if isinstance(entity, types.InputPeerChannel):
self.total = (await self.client(
functions.channels.GetFullChannelRequest(entity)
)).full_chat.participants_count
if self.limit <= 0:
raise StopAsyncIteration
self.seen = set()
if aggressive and not filter:
self.requests.extend(functions.channels.GetParticipantsRequest(
channel=entity,
filter=types.ChannelParticipantsSearch(x),
offset=0,
limit=_MAX_PARTICIPANTS_CHUNK_SIZE,
hash=0
) for x in (search or string.ascii_lowercase))
else:
self.requests.append(functions.channels.GetParticipantsRequest(
channel=entity,
filter=filter or types.ChannelParticipantsSearch(search),
offset=0,
limit=_MAX_PARTICIPANTS_CHUNK_SIZE,
hash=0
))
elif isinstance(entity, types.InputPeerChat):
full = await self.client(
functions.messages.GetFullChatRequest(entity.chat_id))
if not isinstance(
full.full_chat.participants, types.ChatParticipants):
# ChatParticipantsForbidden won't have ``.participants``
self.total = 0
raise StopAsyncIteration
self.total = len(full.full_chat.participants.participants)
users = {user.id: user for user in full.users}
for participant in full.full_chat.participants.participants:
user = users[participant.user_id]
if not self.filter_entity(user):
continue
user = users[participant.user_id]
user.participant = participant
self.buffer.append(user)
return True
else:
self.total = 1
if self.limit != 0:
user = await self.client.get_entity(entity)
if self.filter_entity(user):
user.participant = None
self.buffer.append(user)
return True
async def _load_next_chunk(self):
if not self.requests:
return True
# Only care about the limit for the first request
# (small amount of people, won't be aggressive).
#
# Most people won't care about getting exactly 12,345
# members so it doesn't really matter not to be 100%
# precise with being out of the offset/limit here.
self.requests[0].limit = min(
self.limit - self.requests[0].offset, _MAX_PARTICIPANTS_CHUNK_SIZE)
if self.requests[0].offset > self.limit:
return True
results = await self.client(self.requests)
for i in reversed(range(len(self.requests))):
participants = results[i]
if not participants.users:
self.requests.pop(i)
continue
self.requests[i].offset += len(participants.participants)
users = {user.id: user for user in participants.users}
for participant in participants.participants:
user = users[participant.user_id]
if not self.filter_entity(user) or user.id in self.seen:
continue
self.seen.add(participant.user_id)
user = users[participant.user_id]
user.participant = participant
self.buffer.append(user)
class _AdminLogIter(RequestIter):
async def _init(
self, entity, admins, search, min_id, max_id,
join, leave, invite, restrict, unrestrict, ban, unban,
promote, demote, info, settings, pinned, edit, delete
):
if any((join, leave, invite, restrict, unrestrict, ban, unban,
promote, demote, info, settings, pinned, edit, delete)):
events_filter = types.ChannelAdminLogEventsFilter(
join=join, leave=leave, invite=invite, ban=restrict,
unban=unrestrict, kick=ban, unkick=unban, promote=promote,
demote=demote, info=info, settings=settings, pinned=pinned,
edit=edit, delete=delete
)
else:
events_filter = None
self.entity = await self.client.get_input_entity(entity)
admin_list = []
if admins:
if not utils.is_list_like(admins):
admins = (admins,)
for admin in admins:
admin_list.append(await self.client.get_input_entity(admin))
self.request = functions.channels.GetAdminLogRequest(
self.entity, q=search or '', min_id=min_id, max_id=max_id,
limit=0, events_filter=events_filter, admins=admin_list or None
)
async def _load_next_chunk(self):
self.request.limit = min(self.left, _MAX_ADMIN_LOG_CHUNK_SIZE)
r = await self.client(self.request)
entities = {utils.get_peer_id(x): x
for x in itertools.chain(r.users, r.chats)}
self.request.max_id = min((e.id for e in r.events), default=0)
for ev in r.events:
if isinstance(ev.action,
types.ChannelAdminLogEventActionEditMessage):
ev.action.prev_message._finish_init(
self.client, entities, self.entity)
ev.action.new_message._finish_init(
self.client, entities, self.entity)
elif isinstance(ev.action,
types.ChannelAdminLogEventActionDeleteMessage):
ev.action.message._finish_init(
self.client, entities, self.entity)
self.buffer.append(custom.AdminLogEvent(ev, entities))
if len(r.events) < self.request.limit:
return True
class _ProfilePhotoIter(RequestIter):
async def _init(
self, entity, offset, max_id
):
entity = await self.client.get_input_entity(entity)
if isinstance(entity, (types.InputPeerUser, types.InputPeerSelf)):
self.request = functions.photos.GetUserPhotosRequest(
entity,
offset=offset,
max_id=max_id,
limit=1
)
else:
self.request = functions.messages.SearchRequest(
peer=entity,
q='',
filter=types.InputMessagesFilterChatPhotos(),
min_date=None,
max_date=None,
offset_id=0,
add_offset=offset,
limit=1,
max_id=max_id,
min_id=0,
hash=0
)
if self.limit == 0:
self.request.limit = 1
result = await self.client(self.request)
if isinstance(result, types.photos.Photos):
self.total = len(result.photos)
elif isinstance(result, types.messages.Messages):
self.total = len(result.messages)
else:
# Luckily both photosSlice and messages have a count for total
self.total = getattr(result, 'count', None)
async def _load_next_chunk(self):
self.request.limit = min(self.left, _MAX_PROFILE_PHOTO_CHUNK_SIZE)
result = await self.client(self.request)
if isinstance(result, types.photos.Photos):
self.buffer = result.photos
self.left = len(self.buffer)
self.total = len(self.buffer)
elif isinstance(result, types.messages.Messages):
self.buffer = [x.action.photo for x in result.messages
if isinstance(x.action, types.MessageActionChatEditPhoto)]
self.left = len(self.buffer)
self.total = len(self.buffer)
elif isinstance(result, types.photos.PhotosSlice):
self.buffer = result.photos
self.total = result.count
if len(self.buffer) < self.request.limit:
self.left = len(self.buffer)
else:
self.request.offset += len(result.photos)
else:
self.buffer = [x.action.photo for x in result.messages
if isinstance(x.action, types.MessageActionChatEditPhoto)]
self.total = getattr(result, 'count', None)
if len(result.messages) < self.request.limit:
self.left = len(self.buffer)
elif result.messages:
self.request.add_offset = 0
self.request.offset_id = result.messages[-1].id
class ChatMethods:
# region Public methods
def iter_participants(
self: 'TelegramClient',
entity: 'hints.EntityLike',
limit: float = None,
*,
search: str = '',
filter: 'types.TypeChannelParticipantsFilter' = None,
aggressive: bool = False) -> _ParticipantsIter:
"""
Iterator over the participants belonging to the specified chat.
The order is unspecified.
Arguments
entity (`entity`):
The entity from which to retrieve the participants list.
limit (`int`):
Limits amount of participants fetched.
search (`str`, optional):
Look for participants with this string in name/username.
If ``aggressive is True``, the symbols from this string will
be used.
filter (:tl:`ChannelParticipantsFilter`, optional):
The filter to be used, if you want e.g. only admins
Note that you might not have permissions for some filter.
This has no effect for normal chats or users.
.. note::
The filter :tl:`ChannelParticipantsBanned` will return
*restricted* users. If you want *banned* users you should
use :tl:`ChannelParticipantsKicked` instead.
aggressive (`bool`, optional):
Aggressively looks for all participants in the chat.
This is useful for channels since 20 July 2018,
Telegram added a server-side limit where only the
first 200 members can be retrieved. With this flag
set, more than 200 will be often be retrieved.
This has no effect if a ``filter`` is given.
Yields
The :tl:`User` objects returned by :tl:`GetParticipantsRequest`
with an additional ``.participant`` attribute which is the
matched :tl:`ChannelParticipant` type for channels/megagroups
or :tl:`ChatParticipants` for normal chats.
Example
.. code-block:: python
# Show all user IDs in a chat
for user in client.iter_participants(chat):
print(user.id)
# Search by name
for user in client.iter_participants(chat, search='name'):
print(user.username)
# Filter by admins
from telethon.tl.types import ChannelParticipantsAdmins
for user in client.iter_participants(chat, filter=ChannelParticipantsAdmins):
print(user.first_name)
"""
return _ParticipantsIter(
self,
limit,
entity=entity,
filter=filter,
search=search,
aggressive=aggressive
)
async def get_participants(
self: 'TelegramClient',
*args,
**kwargs) -> 'hints.TotalList':
"""
Same as `iter_participants()`, but returns a
`TotalList <telethon.helpers.TotalList>` instead.
Example
.. code-block:: python
users = client.get_participants(chat)
print(users[0].first_name)
for user in users:
if user.username is not None:
print(user.username)
"""
return await self.iter_participants(*args, **kwargs).collect()
def iter_admin_log(
self: 'TelegramClient',
entity: 'hints.EntityLike',
limit: float = None,
*,
max_id: int = 0,
min_id: int = 0,
search: str = None,
admins: 'hints.EntitiesLike' = None,
join: bool = None,
leave: bool = None,
invite: bool = None,
restrict: bool = None,
unrestrict: bool = None,
ban: bool = None,
unban: bool = None,
promote: bool = None,
demote: bool = None,
info: bool = None,
settings: bool = None,
pinned: bool = None,
edit: bool = None,
delete: bool = None) -> _AdminLogIter:
"""
Iterator over the admin log for the specified channel.
The default order is from the most recent event to to the oldest.
Note that you must be an administrator of it to use this method.
If none of the filters are present (i.e. they all are ``None``),
*all* event types will be returned. If at least one of them is
``True``, only those that are true will be returned.
Arguments
entity (`entity`):
The channel entity from which to get its admin log.
limit (`int` | `None`, optional):
Number of events to be retrieved.
The limit may also be ``None``, which would eventually return
the whole history.
max_id (`int`):
All the events with a higher (newer) ID or equal to this will
be excluded.
min_id (`int`):
All the events with a lower (older) ID or equal to this will
be excluded.
search (`str`):
The string to be used as a search query.
admins (`entity` | `list`):
If present, the events will be filtered by these admins
(or single admin) and only those caused by them will be
returned.
join (`bool`):
If ``True``, events for when a user joined will be returned.
leave (`bool`):
If ``True``, events for when a user leaves will be returned.
invite (`bool`):
If ``True``, events for when a user joins through an invite
link will be returned.
restrict (`bool`):
If ``True``, events with partial restrictions will be
returned. This is what the API calls "ban".
unrestrict (`bool`):
If ``True``, events removing restrictions will be returned.
This is what the API calls "unban".
ban (`bool`):
If ``True``, events applying or removing all restrictions will
be returned. This is what the API calls "kick" (restricting
all permissions removed is a ban, which kicks the user).
unban (`bool`):
If ``True``, events removing all restrictions will be
returned. This is what the API calls "unkick".
promote (`bool`):
If ``True``, events with admin promotions will be returned.
demote (`bool`):
If ``True``, events with admin demotions will be returned.
info (`bool`):
If ``True``, events changing the group info will be returned.
settings (`bool`):
If ``True``, events changing the group settings will be
returned.
pinned (`bool`):
If ``True``, events of new pinned messages will be returned.
edit (`bool`):
If ``True``, events of message edits will be returned.
delete (`bool`):
If ``True``, events of message deletions will be returned.
Yields
Instances of `AdminLogEvent <telethon.tl.custom.adminlogevent.AdminLogEvent>`.
Example
.. code-block:: python
for event in client.iter_admin_log(channel):
if event.changed_title:
print('The title changed from', event.old, 'to', event.new)
"""
return _AdminLogIter(
self,
limit,
entity=entity,
admins=admins,
search=search,
min_id=min_id,
max_id=max_id,
join=join,
leave=leave,
invite=invite,
restrict=restrict,
unrestrict=unrestrict,
ban=ban,
unban=unban,
promote=promote,
demote=demote,
info=info,
settings=settings,
pinned=pinned,
edit=edit,
delete=delete
)
async def get_admin_log(
self: 'TelegramClient',
*args,
**kwargs) -> 'hints.TotalList':
"""
Same as `iter_admin_log()`, but returns a ``list`` instead.
Example
.. code-block:: python
# Get a list of deleted message events which said "heck"
events = client.get_admin_log(channel, search='heck', delete=True)
# Print the old message before it was deleted
print(events[0].old)
"""
return await self.iter_admin_log(*args, **kwargs).collect()
def iter_profile_photos(
self: 'TelegramClient',
entity: 'hints.EntityLike',
limit: int = None,
*,
offset: int = 0,
max_id: int = 0) -> _ProfilePhotoIter:
"""
Iterator over a user's profile photos or a chat's photos.
The order is from the most recent photo to the oldest.
Arguments
entity (`entity`):
The entity from which to get the profile or chat photos.
limit (`int` | `None`, optional):
Number of photos to be retrieved.
The limit may also be ``None``, which would eventually all
the photos that are still available.
offset (`int`):
How many photos should be skipped before returning the first one.
max_id (`int`):
The maximum ID allowed when fetching photos.
Yields
Instances of :tl:`Photo`.
Example
.. code-block:: python
# Download all the profile photos of some user
for photo in client.iter_profile_photos(user):
client.download_media(photo)
"""
return _ProfilePhotoIter(
self,
limit,
entity=entity,
offset=offset,
max_id=max_id
)
async def get_profile_photos(
self: 'TelegramClient',
*args,
**kwargs) -> 'hints.TotalList':
"""
Same as `iter_profile_photos()`, but returns a
`TotalList <telethon.helpers.TotalList>` instead.
Example
.. code-block:: python
# Get the photos of a channel
photos = client.get_profile_photos(channel)
# Download the oldest photo
client.download_media(photos[-1])
"""
return await self.iter_profile_photos(*args, **kwargs).collect()
def action(
self: 'TelegramClient',
entity: 'hints.EntityLike',
action: 'typing.Union[str, types.TypeSendMessageAction]',
*,
delay: float = 4,
auto_cancel: bool = True) -> 'typing.Union[_ChatAction, typing.Coroutine]':
"""
Returns a context-manager object to represent a "chat action".
Chat actions indicate things like "user is typing", "user is
uploading a photo", etc.
If the action is ``'cancel'``, you should just ``await`` the result,
since it makes no sense to use a context-manager for it.
See the example below for intended usage.
Arguments
entity (`entity`):
The entity where the action should be showed in.
action (`str` | :tl:`SendMessageAction`):
The action to show. You can either pass a instance of
:tl:`SendMessageAction` or better, a string used while:
* ``'typing'``: typing a text message.
* ``'contact'``: choosing a contact.
* ``'game'``: playing a game.
* ``'location'``: choosing a geo location.
* ``'record-audio'``: recording a voice note.
You may use ``'record-voice'`` as alias.
* ``'record-round'``: recording a round video.
* ``'record-video'``: recording a normal video.
* ``'audio'``: sending an audio file (voice note or song).
You may use ``'voice'`` and ``'song'`` as aliases.
* ``'round'``: uploading a round video.
* ``'video'``: uploading a video file.
* ``'photo'``: uploading a photo.
* ``'document'``: uploading a document file.
You may use ``'file'`` as alias.
* ``'cancel'``: cancel any pending action in this chat.
Invalid strings will raise a ``ValueError``.
delay (`int` | `float`):
The delay, in seconds, to wait between sending actions.
For example, if the delay is 5 and it takes 7 seconds to
do something, three requests will be made at 0s, 5s, and
7s to cancel the action.
auto_cancel (`bool`):
Whether the action should be cancelled once the context
manager exists or not. The default is ``True``, since
you don't want progress to be shown when it has already
completed.
Returns
Either a context-manager object or a coroutine.
Example
.. code-block:: python
# Type for 2 seconds, then send a message
async with client.action(chat, 'typing'):
await asyncio.sleep(2)
await client.send_message(chat, 'Hello world! I type slow ^^')
# Cancel any previous action
await client.action(chat, 'cancel')
# Upload a document, showing its progress (most clients ignore this)
async with client.action(chat, 'document') as action:
client.send_file(chat, zip_file, progress_callback=action.progress)
"""
if isinstance(action, str):
try:
action = _ChatAction._str_mapping[action.lower()]
except KeyError:
raise ValueError('No such action "{}"'.format(action)) from None
elif not isinstance(action, types.TLObject) or action.SUBCLASS_OF_ID != 0x20b2cc21:
# 0x20b2cc21 = crc32(b'SendMessageAction')
if isinstance(action, type):
raise ValueError('You must pass an instance, not the class')
else:
raise ValueError('Cannot use {} as action'.format(action))
if isinstance(action, types.SendMessageCancelAction):
# ``SetTypingRequest.resolve`` will get input peer of ``entity``.
return self(functions.messages.SetTypingRequest(
entity, types.SendMessageCancelAction()))
return _ChatAction(
self, entity, action, delay=delay, auto_cancel=auto_cancel)
# endregion