mirror of
https://github.com/LonamiWebs/Telethon.git
synced 2024-11-26 11:23:46 +03:00
410 lines
15 KiB
Python
410 lines
15 KiB
Python
import asyncio
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import datetime
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import itertools
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import time
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import typing
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from ..errors._custom import MultiError
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from ..errors._rpcbase import RpcError, ServerError, FloodError, InvalidDcError, UnauthorizedError
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from .._misc import helpers, utils, hints
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from .._sessions.types import Entity
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from .. import errors, _tl
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_NOT_A_REQUEST = lambda: TypeError('You can only invoke requests, not types!')
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if typing.TYPE_CHECKING:
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from .telegramclient import TelegramClient
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def _fmt_flood(delay, request, *, early=False, td=datetime.timedelta):
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return (
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'Sleeping%s for %ds (%s) on %s flood wait',
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' early' if early else '',
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delay,
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td(seconds=delay),
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request.__class__.__name__
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)
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async def call(self: 'TelegramClient', request, ordered=False, flood_sleep_threshold=None):
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return await _call(self, self._sender, request, ordered=ordered)
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async def _call(self: 'TelegramClient', sender, request, ordered=False, flood_sleep_threshold=None):
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if flood_sleep_threshold is None:
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flood_sleep_threshold = self.flood_sleep_threshold
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requests = (request if utils.is_list_like(request) else (request,))
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for r in requests:
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if not isinstance(r, _tl.TLRequest):
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raise _NOT_A_REQUEST()
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await r.resolve(self, utils)
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# Avoid making the request if it's already in a flood wait
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if r.CONSTRUCTOR_ID in self._flood_waited_requests:
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due = self._flood_waited_requests[r.CONSTRUCTOR_ID]
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diff = round(due - time.time())
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if diff <= 3: # Flood waits below 3 seconds are "ignored"
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self._flood_waited_requests.pop(r.CONSTRUCTOR_ID, None)
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elif diff <= flood_sleep_threshold:
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self._log[__name__].info(*_fmt_flood(diff, r, early=True))
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await asyncio.sleep(diff)
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self._flood_waited_requests.pop(r.CONSTRUCTOR_ID, None)
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else:
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raise errors.FLOOD_WAIT(420, f'FLOOD_WAIT_{diff}', request=r)
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if self._no_updates:
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r = _tl.fn.InvokeWithoutUpdates(r)
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request_index = 0
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last_error = None
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self._last_request = time.time()
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for attempt in helpers.retry_range(self._request_retries):
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try:
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future = sender.send(request, ordered=ordered)
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if isinstance(future, list):
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results = []
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exceptions = []
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for f in future:
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try:
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result = await f
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except RpcError as e:
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exceptions.append(e)
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results.append(None)
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continue
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entities = self._entity_cache.add(result)
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if entities:
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await self.session.insert_entities(entities)
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exceptions.append(None)
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results.append(result)
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request_index += 1
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if any(x is not None for x in exceptions):
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raise MultiError(exceptions, results, requests)
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else:
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return results
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else:
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result = await future
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entities = self._entity_cache.add(result)
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if entities:
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await self.session.insert_entities(entities)
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return result
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except ServerError as e:
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last_error = e
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self._log[__name__].warning(
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'Telegram is having internal issues %s: %s',
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e.__class__.__name__, e)
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await asyncio.sleep(2)
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except FloodError as e:
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last_error = e
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if utils.is_list_like(request):
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request = request[request_index]
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# SLOWMODE_WAIT is chat-specific, not request-specific
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if not isinstance(e, errors.SLOWMODE_WAIT):
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self._flood_waited_requests\
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[request.CONSTRUCTOR_ID] = time.time() + e.seconds
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# In test servers, FLOOD_WAIT_0 has been observed, and sleeping for
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# such a short amount will cause retries very fast leading to issues.
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if e.seconds == 0:
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e.seconds = 1
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if e.seconds <= self.flood_sleep_threshold:
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self._log[__name__].info(*_fmt_flood(e.seconds, request))
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await asyncio.sleep(e.seconds)
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else:
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raise
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except InvalidDcError as e:
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last_error = e
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self._log[__name__].info('Phone migrated to %d', e.new_dc)
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should_raise = isinstance(e, (
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errors.PHONE_MIGRATE, errors.NETWORK_MIGRATE
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))
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if should_raise and await self.is_user_authorized():
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raise
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await self._switch_dc(e.new_dc)
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if self._raise_last_call_error and last_error is not None:
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raise last_error
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raise ValueError('Request was unsuccessful {} time(s)'
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.format(attempt))
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async def get_me(self: 'TelegramClient', input_peer: bool = False) \
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-> 'typing.Union[_tl.User, _tl.InputPeerUser]':
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try:
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me = (await self(_tl.fn.users.GetUsers([_tl.InputUserSelf()])))[0]
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return utils.get_input_peer(me, allow_self=False) if input_peer else me
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except UnauthorizedError:
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return None
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async def is_bot(self: 'TelegramClient') -> bool:
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return self._session_state.bot if self._session_state else False
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async def is_user_authorized(self: 'TelegramClient') -> bool:
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if self._authorized is None:
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try:
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# Any request that requires authorization will work
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await self(_tl.fn.updates.GetState())
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self._authorized = True
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except RpcError:
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self._authorized = False
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return self._authorized
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async def get_entity(
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self: 'TelegramClient',
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entity: 'hints.EntitiesLike') -> 'hints.Entity':
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single = not utils.is_list_like(entity)
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if single:
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entity = (entity,)
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# Group input entities by string (resolve username),
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# input users (get users), input chat (get chats) and
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# input channels (get channels) to get the most entities
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# in the less amount of calls possible.
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inputs = []
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for x in entity:
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if isinstance(x, str):
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inputs.append(x)
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else:
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inputs.append(await self.get_input_entity(x))
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lists = {
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helpers._EntityType.USER: [],
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helpers._EntityType.CHAT: [],
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helpers._EntityType.CHANNEL: [],
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}
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for x in inputs:
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try:
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lists[helpers._entity_type(x)].append(x)
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except TypeError:
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pass
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users = lists[helpers._EntityType.USER]
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chats = lists[helpers._EntityType.CHAT]
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channels = lists[helpers._EntityType.CHANNEL]
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if users:
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# GetUsers has a limit of 200 per call
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tmp = []
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while users:
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curr, users = users[:200], users[200:]
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tmp.extend(await self(_tl.fn.users.GetUsers(curr)))
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users = tmp
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if chats: # TODO Handle chats slice?
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chats = (await self(
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_tl.fn.messages.GetChats([x.chat_id for x in chats]))).chats
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if channels:
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channels = (await self(
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_tl.fn.channels.GetChannels(channels))).chats
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# Merge users, chats and channels into a single dictionary
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id_entity = {
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utils.get_peer_id(x): x
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for x in itertools.chain(users, chats, channels)
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}
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# We could check saved usernames and put them into the users,
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# chats and channels list from before. While this would reduce
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# the amount of ResolveUsername calls, it would fail to catch
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# username changes.
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result = []
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for x in inputs:
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if isinstance(x, str):
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result.append(await _get_entity_from_string(self, x))
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elif not isinstance(x, _tl.InputPeerSelf):
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result.append(id_entity[utils.get_peer_id(x)])
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else:
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result.append(next(
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u for u in id_entity.values()
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if isinstance(u, _tl.User) and u.is_self
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))
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return result[0] if single else result
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async def get_input_entity(
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self: 'TelegramClient',
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peer: 'hints.EntityLike') -> '_tl.TypeInputPeer':
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# Short-circuit if the input parameter directly maps to an InputPeer
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try:
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return utils.get_input_peer(peer)
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except TypeError:
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pass
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# Next in priority is having a peer (or its ID) cached in-memory
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try:
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# 0x2d45687 == crc32(b'Peer')
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if isinstance(peer, int) or peer.SUBCLASS_OF_ID == 0x2d45687:
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return self._entity_cache[peer]
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except (AttributeError, KeyError):
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pass
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# Then come known strings that take precedence
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if peer in ('me', 'self'):
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return _tl.InputPeerSelf()
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# No InputPeer, cached peer, or known string. Fetch from session cache
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try:
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peer_id = utils.get_peer_id(peer)
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except TypeError:
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pass
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else:
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entity = await self.session.get_entity(None, peer_id)
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if entity:
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if entity.ty in (Entity.USER, Entity.BOT):
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return _tl.InputPeerUser(entity.id, entity.access_hash)
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elif entity.ty in (Entity.GROUP):
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return _tl.InputPeerChat(peer.chat_id)
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elif entity.ty in (Entity.CHANNEL, Entity.MEGAGROUP, Entity.GIGAGROUP):
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return _tl.InputPeerChannel(entity.id, entity.access_hash)
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# Only network left to try
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if isinstance(peer, str):
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return utils.get_input_peer(
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await _get_entity_from_string(self, peer))
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# If we're a bot and the user has messaged us privately users.getUsers
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# will work with access_hash = 0. Similar for channels.getChannels.
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# If we're not a bot but the user is in our contacts, it seems to work
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# regardless. These are the only two special-cased requests.
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peer = utils.get_peer(peer)
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if isinstance(peer, _tl.PeerUser):
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users = await self(_tl.fn.users.GetUsers([
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_tl.InputUser(peer.user_id, access_hash=0)]))
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if users and not isinstance(users[0], _tl.UserEmpty):
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# If the user passed a valid ID they expect to work for
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# channels but would be valid for users, we get UserEmpty.
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# Avoid returning the invalid empty input peer for that.
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#
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# We *could* try to guess if it's a channel first, and if
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# it's not, work as a chat and try to validate it through
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# another request, but that becomes too much work.
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return utils.get_input_peer(users[0])
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elif isinstance(peer, _tl.PeerChat):
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return _tl.InputPeerChat(peer.chat_id)
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elif isinstance(peer, _tl.PeerChannel):
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try:
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channels = await self(_tl.fn.channels.GetChannels([
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_tl.InputChannel(peer.channel_id, access_hash=0)]))
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return utils.get_input_peer(channels.chats[0])
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except errors.CHANNEL_INVALID:
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pass
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raise ValueError(
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'Could not find the input entity for {} ({}). Please read https://'
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'docs.telethon.dev/en/latest/concepts/entities.html to'
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' find out more details.'
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.format(peer, type(peer).__name__)
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)
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async def get_peer_id(
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self: 'TelegramClient',
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peer: 'hints.EntityLike') -> int:
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if isinstance(peer, int):
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return utils.get_peer_id(peer)
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try:
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if peer.SUBCLASS_OF_ID not in (0x2d45687, 0xc91c90b6):
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# 0x2d45687, 0xc91c90b6 == crc32(b'Peer') and b'InputPeer'
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peer = await self.get_input_entity(peer)
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except AttributeError:
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peer = await self.get_input_entity(peer)
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if isinstance(peer, _tl.InputPeerSelf):
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peer = await self.get_me(input_peer=True)
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return utils.get_peer_id(peer)
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async def _get_entity_from_string(self: 'TelegramClient', string):
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"""
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Gets a full entity from the given string, which may be a phone or
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a username, and processes all the found entities on the session.
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The string may also be a user link, or a channel/chat invite link.
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This method has the side effect of adding the found users to the
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session database, so it can be queried later without API calls,
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if this option is enabled on the session.
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Returns the found entity, or raises TypeError if not found.
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"""
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phone = utils.parse_phone(string)
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if phone:
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try:
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for user in (await self(
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_tl.fn.contacts.GetContacts(0))).users:
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if user.phone == phone:
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return user
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except errors.BOT_METHOD_INVALID:
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raise ValueError('Cannot get entity by phone number as a '
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'bot (try using integer IDs, not strings)')
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elif string.lower() in ('me', 'self'):
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return await self.get_me()
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else:
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username, is_join_chat = utils.parse_username(string)
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if is_join_chat:
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invite = await self(
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_tl.fn.messages.CheckChatInvite(username))
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if isinstance(invite, _tl.ChatInvite):
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raise ValueError(
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'Cannot get entity from a channel (or group) '
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'that you are not part of. Join the group and retry'
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)
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elif isinstance(invite, _tl.ChatInviteAlready):
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return invite.chat
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elif username:
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try:
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result = await self(
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_tl.fn.contacts.ResolveUsername(username))
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except errors.USERNAME_NOT_OCCUPIED as e:
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raise ValueError('No user has "{}" as username'
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.format(username)) from e
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try:
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pid = utils.get_peer_id(result.peer)
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if isinstance(result.peer, _tl.PeerUser):
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return next(x for x in result.users if x.id == pid)
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else:
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return next(x for x in result.chats if x.id == pid)
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except StopIteration:
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pass
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raise ValueError(
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'Cannot find any entity corresponding to "{}"'.format(string)
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)
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async def _get_input_dialog(self: 'TelegramClient', dialog):
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"""
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Returns a :tl:`InputDialogPeer`. This is a bit tricky because
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it may or not need access to the client to convert what's given
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into an input entity.
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"""
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try:
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if dialog.SUBCLASS_OF_ID == 0xa21c9795: # crc32(b'InputDialogPeer')
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dialog.peer = await self.get_input_entity(dialog.peer)
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return dialog
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elif dialog.SUBCLASS_OF_ID == 0xc91c90b6: # crc32(b'InputPeer')
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return _tl.InputDialogPeer(dialog)
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except AttributeError:
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pass
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return _tl.InputDialogPeer(await self.get_input_entity(dialog))
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async def _get_input_notify(self: 'TelegramClient', notify):
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"""
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Returns a :tl:`InputNotifyPeer`. This is a bit tricky because
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it may or not need access to the client to convert what's given
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into an input entity.
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"""
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try:
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if notify.SUBCLASS_OF_ID == 0x58981615:
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if isinstance(notify, _tl.InputNotifyPeer):
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notify.peer = await self.get_input_entity(notify.peer)
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return notify
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except AttributeError:
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pass
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return _tl.InputNotifyPeer(await self.get_input_entity(notify))
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