import asyncio import datetime import itertools import time import typing from .. import errors, helpers, utils, hints from ..errors import MultiError, RPCError from ..helpers import retry_range from ..tl import TLRequest, types, functions _NOT_A_REQUEST = lambda: TypeError('You can only invoke requests, not types!') if typing.TYPE_CHECKING: from .telegramclient import TelegramClient def _fmt_flood(delay, request, *, early=False, td=datetime.timedelta): return ( 'Sleeping%s for %ds (%s) on %s flood wait', ' early' if early else '', delay, td(seconds=delay), request.__class__.__name__ ) class UserMethods: async def __call__(self: 'TelegramClient', request, ordered=False, flood_sleep_threshold=None): return await self._call(self._sender, request, ordered=ordered) async def _call(self: 'TelegramClient', sender, request, ordered=False, flood_sleep_threshold=None): if self._loop is not None and self._loop != helpers.get_running_loop(): raise RuntimeError('The asyncio event loop must not change after connection (see the FAQ for details)') # if the loop is None it will fail with a connection error later on if flood_sleep_threshold is None: flood_sleep_threshold = self.flood_sleep_threshold requests = list(request) if utils.is_list_like(request) else [request] request = list(request) if utils.is_list_like(request) else request for i, r in enumerate(requests): if not isinstance(r, TLRequest): raise _NOT_A_REQUEST() await r.resolve(self, utils) # Avoid making the request if it's already in a flood wait if r.CONSTRUCTOR_ID in self._flood_waited_requests: due = self._flood_waited_requests[r.CONSTRUCTOR_ID] diff = round(due - time.time()) if diff <= 3: # Flood waits below 3 seconds are "ignored" self._flood_waited_requests.pop(r.CONSTRUCTOR_ID, None) elif diff <= flood_sleep_threshold: self._log[__name__].info(*_fmt_flood(diff, r, early=True)) await asyncio.sleep(diff) self._flood_waited_requests.pop(r.CONSTRUCTOR_ID, None) else: raise errors.FloodWaitError(request=r, capture=diff) if self._no_updates: if utils.is_list_like(request): request[i] = functions.InvokeWithoutUpdatesRequest(r) else: # This should only run once as requests should be a list of 1 item request = functions.InvokeWithoutUpdatesRequest(r) request_index = 0 last_error = None self._last_request = time.time() for attempt in retry_range(self._request_retries): try: future = sender.send(request, ordered=ordered) if isinstance(future, list): results = [] exceptions = [] for f in future: try: result = await f except RPCError as e: exceptions.append(e) results.append(None) continue self.session.process_entities(result) exceptions.append(None) results.append(result) request_index += 1 if any(x is not None for x in exceptions): raise MultiError(exceptions, results, requests) else: return results else: result = await future self.session.process_entities(result) return result except (errors.ServerError, errors.RpcCallFailError, errors.RpcMcgetFailError, errors.InterdcCallErrorError, errors.TimedOutError, errors.InterdcCallRichErrorError) as e: last_error = e self._log[__name__].warning( 'Telegram is having internal issues %s: %s', e.__class__.__name__, e) await asyncio.sleep(2) except (errors.FloodWaitError, errors.FloodPremiumWaitError, errors.SlowModeWaitError, errors.FloodTestPhoneWaitError) as e: last_error = e if utils.is_list_like(request): request = request[request_index] # SLOW_MODE_WAIT is chat-specific, not request-specific if not isinstance(e, errors.SlowModeWaitError): self._flood_waited_requests\ [request.CONSTRUCTOR_ID] = time.time() + e.seconds # In test servers, FLOOD_WAIT_0 has been observed, and sleeping for # such a short amount will cause retries very fast leading to issues. if e.seconds == 0: e.seconds = 1 if e.seconds <= self.flood_sleep_threshold: self._log[__name__].info(*_fmt_flood(e.seconds, request)) await asyncio.sleep(e.seconds) else: raise except (errors.PhoneMigrateError, errors.NetworkMigrateError, errors.UserMigrateError) as e: last_error = e self._log[__name__].info('Phone migrated to %d', e.new_dc) should_raise = isinstance(e, ( errors.PhoneMigrateError, errors.NetworkMigrateError )) if should_raise and await self.is_user_authorized(): raise await self._switch_dc(e.new_dc) if self._raise_last_call_error and last_error is not None: raise last_error raise ValueError('Request was unsuccessful {} time(s)' .format(attempt)) # region Public methods async def get_me(self: 'TelegramClient', input_peer: bool = False) \ -> 'typing.Union[types.User, types.InputPeerUser]': """ Gets "me", the current :tl:`User` who is logged in. If the user has not logged in yet, this method returns `None`. Arguments input_peer (`bool`, optional): Whether to return the :tl:`InputPeerUser` version or the normal :tl:`User`. This can be useful if you just need to know the ID of yourself. Returns Your own :tl:`User`. Example .. code-block:: python me = await client.get_me() print(me.username) """ if input_peer and self._mb_entity_cache.self_id: return self._mb_entity_cache.get(self._mb_entity_cache.self_id)._as_input_peer() try: me = (await self( functions.users.GetUsersRequest([types.InputUserSelf()])))[0] if not self._mb_entity_cache.self_id: self._mb_entity_cache.set_self_user(me.id, me.bot, me.access_hash) return utils.get_input_peer(me, allow_self=False) if input_peer else me except errors.UnauthorizedError: return None @property def _self_id(self: 'TelegramClient') -> typing.Optional[int]: """ Returns the ID of the logged-in user, if known. This property is used in every update, and some like `updateLoginToken` occur prior to login, so it gracefully handles when no ID is known yet. """ return self._mb_entity_cache.self_id async def is_bot(self: 'TelegramClient') -> bool: """ Return `True` if the signed-in user is a bot, `False` otherwise. Example .. code-block:: python if await client.is_bot(): print('Beep') else: print('Hello') """ if self._mb_entity_cache.self_bot is None: await self.get_me(input_peer=True) return self._mb_entity_cache.self_bot async def is_user_authorized(self: 'TelegramClient') -> bool: """ Returns `True` if the user is authorized (logged in). Example .. code-block:: python if not await client.is_user_authorized(): await client.send_code_request(phone) code = input('enter code: ') await client.sign_in(phone, code) """ if self._authorized is None: try: # Any request that requires authorization will work await self(functions.updates.GetStateRequest()) self._authorized = True except errors.RPCError: self._authorized = False return self._authorized async def get_entity( self: 'TelegramClient', entity: 'hints.EntitiesLike') -> typing.Union['hints.Entity', typing.List['hints.Entity']]: """ Turns the given entity into a valid Telegram :tl:`User`, :tl:`Chat` or :tl:`Channel`. You can also pass a list or iterable of entities, and they will be efficiently fetched from the network. Arguments entity (`str` | `int` | :tl:`Peer` | :tl:`InputPeer`): If a username is given, **the username will be resolved** making an API call every time. Resolving usernames is an expensive operation and will start hitting flood waits around 50 usernames in a short period of time. If you want to get the entity for a *cached* username, you should first `get_input_entity(username) ` which will use the cache), and then use `get_entity` with the result of the previous call. Similar limits apply to invite links, and you should use their ID instead. Using phone numbers (from people in your contact list), exact names, integer IDs or :tl:`Peer` rely on a `get_input_entity` first, which in turn needs the entity to be in cache, unless a :tl:`InputPeer` was passed. Unsupported types will raise ``TypeError``. If the entity can't be found, ``ValueError`` will be raised. Returns :tl:`User`, :tl:`Chat` or :tl:`Channel` corresponding to the input entity. A list will be returned if more than one was given. Example .. code-block:: python from telethon import utils me = await client.get_entity('me') print(utils.get_display_name(me)) chat = await client.get_input_entity('username') async for message in client.iter_messages(chat): ... # Note that you could have used the username directly, but it's # good to use get_input_entity if you will reuse it a lot. async for message in client.iter_messages('username'): ... # Note that for this to work the phone number must be in your contacts some_id = await client.get_peer_id('+34123456789') """ single = not utils.is_list_like(entity) if single: entity = (entity,) # Group input entities by string (resolve username), # input users (get users), input chat (get chats) and # input channels (get channels) to get the most entities # in the less amount of calls possible. inputs = [] for x in entity: if isinstance(x, str): inputs.append(x) else: inputs.append(await self.get_input_entity(x)) lists = { helpers._EntityType.USER: [], helpers._EntityType.CHAT: [], helpers._EntityType.CHANNEL: [], } for x in inputs: try: lists[helpers._entity_type(x)].append(x) except TypeError: pass users = lists[helpers._EntityType.USER] chats = lists[helpers._EntityType.CHAT] channels = lists[helpers._EntityType.CHANNEL] if users: # GetUsersRequest has a limit of 200 per call tmp = [] while users: curr, users = users[:200], users[200:] tmp.extend(await self(functions.users.GetUsersRequest(curr))) users = tmp if chats: # TODO Handle chats slice? chats = (await self( functions.messages.GetChatsRequest([x.chat_id for x in chats]))).chats if channels: channels = (await self( functions.channels.GetChannelsRequest(channels))).chats # Merge users, chats and channels into a single dictionary id_entity = { # `get_input_entity` might've guessed the type from a non-marked ID, # so the only way to match that with the input is by not using marks here. utils.get_peer_id(x, add_mark=False): x for x in itertools.chain(users, chats, channels) } # We could check saved usernames and put them into the users, # chats and channels list from before. While this would reduce # the amount of ResolveUsername calls, it would fail to catch # username changes. result = [] for x in inputs: if isinstance(x, str): result.append(await self._get_entity_from_string(x)) elif not isinstance(x, types.InputPeerSelf): result.append(id_entity[utils.get_peer_id(x, add_mark=False)]) else: result.append(next( u for u in id_entity.values() if isinstance(u, types.User) and u.is_self )) return result[0] if single else result async def get_input_entity( self: 'TelegramClient', peer: 'hints.EntityLike') -> 'types.TypeInputPeer': """ Turns the given entity into its input entity version. Most requests use this kind of :tl:`InputPeer`, so this is the most suitable call to make for those cases. **Generally you should let the library do its job** and don't worry about getting the input entity first, but if you're going to use an entity often, consider making the call: Arguments entity (`str` | `int` | :tl:`Peer` | :tl:`InputPeer`): If a username or invite link is given, **the library will use the cache**. This means that it's possible to be using a username that *changed* or an old invite link (this only happens if an invite link for a small group chat is used after it was upgraded to a mega-group). If the username or ID from the invite link is not found in the cache, it will be fetched. The same rules apply to phone numbers (``'+34 123456789'``) from people in your contact list. If an exact name is given, it must be in the cache too. This is not reliable as different people can share the same name and which entity is returned is arbitrary, and should be used only for quick tests. If a positive integer ID is given, the entity will be searched in cached users, chats or channels, without making any call. If a negative integer ID is given, the entity will be searched exactly as either a chat (prefixed with ``-``) or as a channel (prefixed with ``-100``). If a :tl:`Peer` is given, it will be searched exactly in the cache as either a user, chat or channel. If the given object can be turned into an input entity directly, said operation will be done. Unsupported types will raise ``TypeError``. If the entity can't be found, ``ValueError`` will be raised. Returns :tl:`InputPeerUser`, :tl:`InputPeerChat` or :tl:`InputPeerChannel` or :tl:`InputPeerSelf` if the parameter is ``'me'`` or ``'self'``. If you need to get the ID of yourself, you should use `get_me` with ``input_peer=True``) instead. Example .. code-block:: python # If you're going to use "username" often in your code # (make a lot of calls), consider getting its input entity # once, and then using the "user" everywhere instead. user = await client.get_input_entity('username') # The same applies to IDs, chats or channels. chat = await client.get_input_entity(-123456789) """ # Short-circuit if the input parameter directly maps to an InputPeer try: return utils.get_input_peer(peer) except TypeError: pass # Next in priority is having a peer (or its ID) cached in-memory try: # 0x2d45687 == crc32(b'Peer') if isinstance(peer, int) or peer.SUBCLASS_OF_ID == 0x2d45687: return self._mb_entity_cache.get(utils.get_peer_id(peer, add_mark=False))._as_input_peer() except AttributeError: pass # Then come known strings that take precedence if peer in ('me', 'self'): return types.InputPeerSelf() # No InputPeer, cached peer, or known string. Fetch from disk cache try: return self.session.get_input_entity(peer) except ValueError: pass # Only network left to try if isinstance(peer, str): return utils.get_input_peer( await self._get_entity_from_string(peer)) # If we're a bot and the user has messaged us privately users.getUsers # will work with access_hash = 0. Similar for channels.getChannels. # If we're not a bot but the user is in our contacts, it seems to work # regardless. These are the only two special-cased requests. peer = utils.get_peer(peer) if isinstance(peer, types.PeerUser): users = await self(functions.users.GetUsersRequest([ types.InputUser(peer.user_id, access_hash=0)])) if users and not isinstance(users[0], types.UserEmpty): # If the user passed a valid ID they expect to work for # channels but would be valid for users, we get UserEmpty. # Avoid returning the invalid empty input peer for that. # # We *could* try to guess if it's a channel first, and if # it's not, work as a chat and try to validate it through # another request, but that becomes too much work. return utils.get_input_peer(users[0]) elif isinstance(peer, types.PeerChat): return types.InputPeerChat(peer.chat_id) elif isinstance(peer, types.PeerChannel): try: channels = await self(functions.channels.GetChannelsRequest([ types.InputChannel(peer.channel_id, access_hash=0)])) return utils.get_input_peer(channels.chats[0]) except errors.ChannelInvalidError: pass raise ValueError( 'Could not find the input entity for {} ({}). Please read https://' 'docs.telethon.dev/en/stable/concepts/entities.html to' ' find out more details.' .format(peer, type(peer).__name__) ) async def _get_peer(self: 'TelegramClient', peer: 'hints.EntityLike'): i, cls = utils.resolve_id(await self.get_peer_id(peer)) return cls(i) async def get_peer_id( self: 'TelegramClient', peer: 'hints.EntityLike', add_mark: bool = True) -> int: """ Gets the ID for the given entity. This method needs to be ``async`` because `peer` supports usernames, invite-links, phone numbers (from people in your contact list), etc. If ``add_mark is False``, then a positive ID will be returned instead. By default, bot-API style IDs (signed) are returned. Example .. code-block:: python print(await client.get_peer_id('me')) """ if isinstance(peer, int): return utils.get_peer_id(peer, add_mark=add_mark) try: if peer.SUBCLASS_OF_ID not in (0x2d45687, 0xc91c90b6): # 0x2d45687, 0xc91c90b6 == crc32(b'Peer') and b'InputPeer' peer = await self.get_input_entity(peer) except AttributeError: peer = await self.get_input_entity(peer) if isinstance(peer, types.InputPeerSelf): peer = await self.get_me(input_peer=True) return utils.get_peer_id(peer, add_mark=add_mark) # endregion # region Private methods async def _get_entity_from_string(self: 'TelegramClient', string): """ Gets a full entity from the given string, which may be a phone or a username, and processes all the found entities on the session. The string may also be a user link, or a channel/chat invite link. This method has the side effect of adding the found users to the session database, so it can be queried later without API calls, if this option is enabled on the session. Returns the found entity, or raises TypeError if not found. """ phone = utils.parse_phone(string) if phone: try: for user in (await self( functions.contacts.GetContactsRequest(0))).users: if user.phone == phone: return user except errors.BotMethodInvalidError: raise ValueError('Cannot get entity by phone number as a ' 'bot (try using integer IDs, not strings)') elif string.lower() in ('me', 'self'): return await self.get_me() else: username, is_join_chat = utils.parse_username(string) if is_join_chat: invite = await self( functions.messages.CheckChatInviteRequest(username)) if isinstance(invite, types.ChatInvite): raise ValueError( 'Cannot get entity from a channel (or group) ' 'that you are not part of. Join the group and retry' ) elif isinstance(invite, types.ChatInviteAlready): return invite.chat elif username: try: result = await self( functions.contacts.ResolveUsernameRequest(username)) except errors.UsernameNotOccupiedError as e: raise ValueError('No user has "{}" as username' .format(username)) from e try: pid = utils.get_peer_id(result.peer, add_mark=False) if isinstance(result.peer, types.PeerUser): return next(x for x in result.users if x.id == pid) else: return next(x for x in result.chats if x.id == pid) except StopIteration: pass try: # Nobody with this username, maybe it's an exact name/title return await self.get_entity( self.session.get_input_entity(string)) except ValueError: pass raise ValueError( 'Cannot find any entity corresponding to "{}"'.format(string) ) async def _get_input_dialog(self: 'TelegramClient', dialog): """ Returns a :tl:`InputDialogPeer`. This is a bit tricky because it may or not need access to the client to convert what's given into an input entity. """ try: if dialog.SUBCLASS_OF_ID == 0xa21c9795: # crc32(b'InputDialogPeer') dialog.peer = await self.get_input_entity(dialog.peer) return dialog elif dialog.SUBCLASS_OF_ID == 0xc91c90b6: # crc32(b'InputPeer') return types.InputDialogPeer(dialog) except AttributeError: pass return types.InputDialogPeer(await self.get_input_entity(dialog)) async def _get_input_notify(self: 'TelegramClient', notify): """ Returns a :tl:`InputNotifyPeer`. This is a bit tricky because it may or not need access to the client to convert what's given into an input entity. """ try: if notify.SUBCLASS_OF_ID == 0x58981615: if isinstance(notify, types.InputNotifyPeer): notify.peer = await self.get_input_entity(notify.peer) return notify except AttributeError: pass return types.InputNotifyPeer(await self.get_input_entity(notify)) # endregion