import asyncio import itertools import string from .users import UserMethods from .. import helpers, utils from ..requestiter import RequestIter from ..tl import types, functions, custom _MAX_PARTICIPANTS_CHUNK_SIZE = 200 _MAX_ADMIN_LOG_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.lower() self.filter_entity = lambda ent: ( search in utils.get_display_name(ent).lower() or search in (getattr(ent, 'username', '') or None).lower() ) 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 ChatMethods(UserMethods): # region Public methods def iter_participants( self, entity, limit=None, *, search='', filter=None, aggressive=False ): """ Iterator over the participants belonging to the specified chat. Args: 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. """ return _ParticipantsIter( self, limit, entity=entity, filter=filter, search=search, aggressive=aggressive ) async def get_participants(self, *args, **kwargs): """ Same as `iter_participants`, but returns a `TotalList ` instead. """ return await self.iter_participants(*args, **kwargs).collect() def iter_admin_log( self, entity, limit=None, *, max_id=0, min_id=0, search=None, admins=None, join=None, leave=None, invite=None, restrict=None, unrestrict=None, ban=None, unban=None, promote=None, demote=None, info=None, settings=None, pinned=None, edit=None, delete=None): """ Iterator over the admin log for the specified channel. 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. Args: 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 `telethon.tl.custom.adminlogevent.AdminLogEvent`. """ 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, *args, **kwargs): """ Same as `iter_admin_log`, but returns a ``list`` instead. """ return await self.iter_admin_log(*args, **kwargs).collect() def action(self, entity, action, *, delay=4, auto_cancel=True): """ Returns a context-manager object to represent a "chat action". Chat actions indicate things like "user is typing", "user is uploading a photo", etc. Normal usage is as follows: .. code-block:: python async with client.action(chat, 'typing'): await asyncio.sleep(2) # type for 2 seconds await client.send_message(chat, 'Hello world! I type slow ^^') If the action is ``'cancel'``, you should just ``await`` the result, since it makes no sense to use a context-manager for it: .. code-block:: python await client.action(chat, 'cancel') Args: 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. If you are uploading a file, you may do ``progress_callback=chat.progress`` to update the progress of the action. Some clients don't care about this progress, though, so it's mostly not needed, but still available. """ 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