mirror of
https://github.com/LonamiWebs/Telethon.git
synced 2024-11-10 19:46:36 +03:00
Make certain methods and members private
This commit is contained in:
Lonami Exo
parent
63b1881c83
commit
452532cce7
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@ -23,7 +23,7 @@ class MtProtoPlainSender:
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"""Sends a plain packet (auth_key_id = 0) containing the given message body (data)"""
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with BinaryWriter() as writer:
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writer.write_long(0)
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writer.write_long(self.get_new_msg_id())
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writer.write_long(self._get_new_msg_id())
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writer.write_int(len(data))
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writer.write(data)
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@ -41,7 +41,7 @@ class MtProtoPlainSender:
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response = reader.read(message_length)
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return response
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def get_new_msg_id(self):
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def _get_new_msg_id(self):
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"""Generates a new message ID based on the current time (in ms) since epoch"""
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# See https://core.telegram.org/mtproto/description#message-identifier-msg-id
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ms_time = int(time.time() * 1000)
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@ -21,43 +21,43 @@ class MtProtoSender:
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"""MTProto Mobile Protocol sender (https://core.telegram.org/mtproto/description)"""
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def __init__(self, transport, session):
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self.transport = transport
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self._transport = transport
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self.session = session
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self.logger = logging.getLogger(__name__)
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self._logger = logging.getLogger(__name__)
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self.need_confirmation = [] # Message IDs that need confirmation
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self.on_update_handlers = []
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self._need_confirmation = [] # Message IDs that need confirmation
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self._on_update_handlers = []
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# Store an RLock instance to make this class safely multi-threaded
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self.lock = RLock()
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self._lock = RLock()
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# Flag used to determine whether we've received a sent request yet or not
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# We need this to avoid using the updates thread if we're waiting to read
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self.waiting_receive = Event()
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self._waiting_receive = Event()
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# Used when logging out, the only request that seems to use 'ack' requests
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# TODO There might be a better way to handle msgs_ack requests
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self.logging_out = False
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self.ping_interval = 60
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self.ping_time_last = time()
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self._ping_time_last = time()
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# Flags used to determine the status of the updates thread.
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self.updates_thread_running = Event()
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self.updates_thread_receiving = Event()
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self._updates_thread_running = Event()
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self._updates_thread_receiving = Event()
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# Sleep amount on "must sleep" error for the updates thread to sleep too
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self.updates_thread_sleep = None
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self.updates_thread = None # Set later
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self._updates_thread_sleep = None
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self._updates_thread = None # Set later
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def connect(self):
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"""Connects to the server"""
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self.transport.connect()
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self._transport.connect()
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def disconnect(self):
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"""Disconnects and **stops all the running threads** if any"""
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self.set_updates_thread(running=False)
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self.transport.close()
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self._set_updates_thread(running=False)
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self._transport.close()
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def reconnect(self):
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"""Disconnects and connects again (effectively reconnecting)"""
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@ -67,11 +67,11 @@ class MtProtoSender:
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def setup_ping_thread(self):
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"""Sets up the Ping's thread, so that a connection can be kept
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alive for a longer time without Telegram disconnecting us"""
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self.updates_thread = Thread(
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self._updates_thread = Thread(
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name='UpdatesThread', daemon=True,
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target=self.updates_thread_method)
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target=self._updates_thread_method)
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self.set_updates_thread(running=True)
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self._set_updates_thread(running=True)
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def add_update_handler(self, handler):
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"""Adds an update handler (a method with one argument, the received
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@ -79,12 +79,12 @@ class MtProtoSender:
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# The updates thread is already running for periodic ping requests,
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# so there is no need to start it when adding update handlers.
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self.on_update_handlers.append(handler)
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self._on_update_handlers.append(handler)
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def remove_update_handler(self, handler):
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self.on_update_handlers.remove(handler)
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self._on_update_handlers.remove(handler)
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def generate_sequence(self, confirmed):
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def _generate_sequence(self, confirmed):
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"""Generates the next sequence number, based on whether it
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was confirmed yet or not"""
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if confirmed:
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@ -109,34 +109,34 @@ class MtProtoSender:
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# Only cancel the receive *if* it was the
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# updates thread who was receiving. We do
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# not want to cancel other pending requests!
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if self.updates_thread_receiving.is_set():
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self.logger.info('Cancelling updates receive from send()...')
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self.transport.cancel_receive()
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if self._updates_thread_receiving.is_set():
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self._logger.info('Cancelling updates receive from send()...')
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self._transport.cancel_receive()
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# Now only us can be using this method
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with self.lock:
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self.logger.debug('send() acquired the lock')
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with self._lock:
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self._logger.debug('send() acquired the lock')
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# Set the flag to true so the updates thread stops trying to receive
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self.waiting_receive.set()
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self._waiting_receive.set()
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# If any message needs confirmation send an AckRequest first
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if self.need_confirmation:
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msgs_ack = MsgsAck(self.need_confirmation)
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if self._need_confirmation:
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msgs_ack = MsgsAck(self._need_confirmation)
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with BinaryWriter() as writer:
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msgs_ack.on_send(writer)
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self.send_packet(writer.get_bytes(), msgs_ack)
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self._send_packet(writer.get_bytes(), msgs_ack)
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del self.need_confirmation[:]
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del self._need_confirmation[:]
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# Finally send our packed request
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with BinaryWriter() as writer:
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request.on_send(writer)
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self.send_packet(writer.get_bytes(), request)
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self._send_packet(writer.get_bytes(), request)
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# And update the saved session
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self.session.save()
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self.logger.debug('send() released the lock')
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self._logger.debug('send() released the lock')
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def receive(self, request, timeout=timedelta(seconds=5)):
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"""Receives the specified MTProtoRequest ("fills in it"
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@ -144,29 +144,29 @@ class MtProtoSender:
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An optional timeout can be specified to cancel the operation
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if no data has been read after its time delta"""
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with self.lock:
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self.logger.debug('receive() acquired the lock')
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with self._lock:
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self._logger.debug('receive() acquired the lock')
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# Don't stop trying to receive until we get the request we wanted
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while not request.confirm_received:
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self.logger.info('Trying to .receive() the request result...')
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seq, body = self.transport.receive(timeout)
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message, remote_msg_id, remote_sequence = self.decode_msg(body)
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self._logger.info('Trying to .receive() the request result...')
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seq, body = self._transport.receive(timeout)
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message, remote_msg_id, remote_sequence = self._decode_msg(body)
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with BinaryReader(message) as reader:
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self.process_msg(remote_msg_id, remote_sequence, reader,
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self._process_msg(remote_msg_id, remote_sequence, reader,
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request)
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self.logger.info('Request result received')
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self._logger.info('Request result received')
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# We can now set the flag to False thus resuming the updates thread
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self.waiting_receive.clear()
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self.logger.debug('receive() released the lock')
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self._waiting_receive.clear()
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self._logger.debug('receive() released the lock')
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# endregion
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# region Low level processing
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def send_packet(self, packet, request):
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def _send_packet(self, packet, request):
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"""Sends the given packet bytes with the additional
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information of the original request. This does NOT lock the threads!"""
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request.msg_id = self.session.get_new_msg_id()
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@ -176,7 +176,7 @@ class MtProtoSender:
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plain_writer.write_long(self.session.salt, signed=False)
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plain_writer.write_long(self.session.id, signed=False)
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plain_writer.write_long(request.msg_id)
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plain_writer.write_int(self.generate_sequence(request.confirmed))
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plain_writer.write_int(self._generate_sequence(request.confirmed))
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plain_writer.write_int(len(packet))
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plain_writer.write(packet)
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@ -191,9 +191,9 @@ class MtProtoSender:
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self.session.auth_key.key_id, signed=False)
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cipher_writer.write(msg_key)
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cipher_writer.write(cipher_text)
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self.transport.send(cipher_writer.get_bytes())
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self._transport.send(cipher_writer.get_bytes())
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def decode_msg(self, body):
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def _decode_msg(self, body):
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"""Decodes an received encrypted message body bytes"""
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message = None
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remote_msg_id = None
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@ -221,39 +221,39 @@ class MtProtoSender:
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return message, remote_msg_id, remote_sequence
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def process_msg(self, msg_id, sequence, reader, request=None):
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def _process_msg(self, msg_id, sequence, reader, request=None):
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"""Processes and handles a Telegram message"""
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# TODO Check salt, session_id and sequence_number
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self.need_confirmation.append(msg_id)
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self._need_confirmation.append(msg_id)
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code = reader.read_int(signed=False)
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reader.seek(-4)
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# The following codes are "parsed manually"
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if code == 0xf35c6d01: # rpc_result, (response of an RPC call, i.e., we sent a request)
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return self.handle_rpc_result(msg_id, sequence, reader, request)
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return self._handle_rpc_result(msg_id, sequence, reader, request)
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if code == 0x347773c5: # pong
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return self.handle_pong(msg_id, sequence, reader, request)
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return self._handle_pong(msg_id, sequence, reader, request)
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if code == 0x73f1f8dc: # msg_container
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return self.handle_container(msg_id, sequence, reader, request)
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return self._handle_container(msg_id, sequence, reader, request)
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if code == 0x3072cfa1: # gzip_packed
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return self.handle_gzip_packed(msg_id, sequence, reader, request)
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return self._handle_gzip_packed(msg_id, sequence, reader, request)
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if code == 0xedab447b: # bad_server_salt
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return self.handle_bad_server_salt(msg_id, sequence, reader,
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return self._handle_bad_server_salt(msg_id, sequence, reader,
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request)
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if code == 0xa7eff811: # bad_msg_notification
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return self.handle_bad_msg_notification(msg_id, sequence, reader)
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return self._handle_bad_msg_notification(msg_id, sequence, reader)
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# msgs_ack, it may handle the request we wanted
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if code == 0x62d6b459:
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ack = reader.tgread_object()
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if request and request.msg_id in ack.msg_ids:
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self.logger.warning('Ack found for the current request ID')
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self._logger.warning('Ack found for the current request ID')
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if self.logging_out:
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self.logger.info('Message ack confirmed the logout request')
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self._logger.info('Message ack confirmed the logout request')
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request.confirm_received = True
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return False
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@ -262,7 +262,7 @@ class MtProtoSender:
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# In this case, we will simply treat the incoming TLObject as an Update,
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# if we can first find a matching TLObject
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if code in tlobjects.keys():
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return self.handle_update(msg_id, sequence, reader)
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return self._handle_update(msg_id, sequence, reader)
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print('Unknown message: {}'.format(hex(code)))
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return False
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@ -271,27 +271,27 @@ class MtProtoSender:
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# region Message handling
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def handle_update(self, msg_id, sequence, reader):
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def _handle_update(self, msg_id, sequence, reader):
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tlobject = reader.tgread_object()
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self.logger.debug('Handling update for object %s', repr(tlobject))
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for handler in self.on_update_handlers:
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self._logger.debug('Handling update for object %s', repr(tlobject))
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for handler in self._on_update_handlers:
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handler(tlobject)
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return False
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def handle_pong(self, msg_id, sequence, reader, request):
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self.logger.debug('Handling pong')
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def _handle_pong(self, msg_id, sequence, reader, request):
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self._logger.debug('Handling pong')
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reader.read_int(signed=False) # code
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received_msg_id = reader.read_long(signed=False)
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if received_msg_id == request.msg_id:
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self.logger.warning('Pong confirmed a request')
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self._logger.warning('Pong confirmed a request')
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request.confirm_received = True
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return False
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def handle_container(self, msg_id, sequence, reader, request):
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self.logger.debug('Handling container')
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def _handle_container(self, msg_id, sequence, reader, request):
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self._logger.debug('Handling container')
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reader.read_int(signed=False) # code
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size = reader.read_int()
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for _ in range(size):
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@ -302,13 +302,13 @@ class MtProtoSender:
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# note: this code is IMPORTANT for skipping RPC results of lost
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# requests (for example, ones from the previous connection session)
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if not self.process_msg(inner_msg_id, sequence, reader, request):
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if not self._process_msg(inner_msg_id, sequence, reader, request):
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reader.set_position(begin_position + inner_length)
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return False
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def handle_bad_server_salt(self, msg_id, sequence, reader, request):
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self.logger.debug('Handling bad server salt')
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def _handle_bad_server_salt(self, msg_id, sequence, reader, request):
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self._logger.debug('Handling bad server salt')
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reader.read_int(signed=False) # code
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reader.read_long(signed=False) # bad_msg_id
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reader.read_int() # bad_msg_seq_no
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@ -326,8 +326,8 @@ class MtProtoSender:
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return True
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def handle_bad_msg_notification(self, msg_id, sequence, reader):
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self.logger.debug('Handling bad message notification')
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def _handle_bad_msg_notification(self, msg_id, sequence, reader):
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self._logger.debug('Handling bad message notification')
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reader.read_int(signed=False) # code
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reader.read_long(signed=False) # request_id
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reader.read_int() # request_sequence
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@ -339,13 +339,13 @@ class MtProtoSender:
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# Use the current msg_id to determine the right time offset.
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self.session.update_time_offset(correct_msg_id=msg_id)
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self.session.save()
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self.logger.warning('Read Bad Message error: ' + str(error))
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self.logger.info('Attempting to use the correct time offset.')
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self._logger.warning('Read Bad Message error: ' + str(error))
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self._logger.info('Attempting to use the correct time offset.')
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else:
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raise error
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def handle_rpc_result(self, msg_id, sequence, reader, request):
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self.logger.debug('Handling RPC result, request is%s None', ' not' if request else '')
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def _handle_rpc_result(self, msg_id, sequence, reader, request):
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self._logger.debug('Handling RPC result, request is%s None', ' not' if request else '')
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reader.read_int(signed=False) # code
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request_id = reader.read_long(signed=False)
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inner_code = reader.read_int(signed=False)
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@ -357,7 +357,7 @@ class MtProtoSender:
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error = RPCError(
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code=reader.read_int(), message=reader.tgread_string())
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self.logger.warning('Read RPC error: %s', str(error))
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self._logger.warning('Read RPC error: %s', str(error))
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if error.must_resend:
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if not request:
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raise ValueError(
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@ -366,7 +366,7 @@ class MtProtoSender:
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request.confirm_received = False
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if error.message.startswith('FLOOD_WAIT_'):
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self.updates_thread_sleep = error.additional_data
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self._updates_thread_sleep = error.additional_data
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raise FloodWaitError(seconds=error.additional_data)
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elif '_MIGRATE_' in error.message:
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@ -379,7 +379,7 @@ class MtProtoSender:
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raise ValueError(
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'Cannot receive a request from inside an RPC result from the updates thread.')
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self.logger.debug('Reading request response')
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self._logger.debug('Reading request response')
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if inner_code == 0x3072cfa1: # GZip packed
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unpacked_data = gzip.decompress(reader.tgread_bytes())
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with BinaryReader(unpacked_data) as compressed_reader:
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@ -391,107 +391,107 @@ class MtProtoSender:
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else:
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# note: if it's really a result for RPC from previous connection
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# session, it will be skipped by the handle_container()
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self.logger.warning('RPC result found for unknown request (maybe from previous connection session)')
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self._logger.warning('RPC result found for unknown request (maybe from previous connection session)')
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def handle_gzip_packed(self, msg_id, sequence, reader, request):
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self.logger.debug('Handling gzip packed data')
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def _handle_gzip_packed(self, msg_id, sequence, reader, request):
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self._logger.debug('Handling gzip packed data')
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reader.read_int(signed=False) # code
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packed_data = reader.tgread_bytes()
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unpacked_data = gzip.decompress(packed_data)
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with BinaryReader(unpacked_data) as compressed_reader:
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return self.process_msg(msg_id, sequence, compressed_reader,
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return self._process_msg(msg_id, sequence, compressed_reader,
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request)
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# endregion
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def set_updates_thread(self, running):
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def _set_updates_thread(self, running):
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"""Sets the updates thread status (running or not)"""
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if not self.updates_thread or \
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running == self.updates_thread_running.is_set():
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if not self._updates_thread or \
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running == self._updates_thread_running.is_set():
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return
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# Different state, update the saved value and behave as required
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self.logger.info('Changing updates thread running status to %s', running)
|
||||
self._logger.info('Changing updates thread running status to %s', running)
|
||||
if running:
|
||||
self.updates_thread_running.set()
|
||||
self.updates_thread.start()
|
||||
self._updates_thread_running.set()
|
||||
self._updates_thread.start()
|
||||
else:
|
||||
self.updates_thread_running.clear()
|
||||
if self.updates_thread_receiving.is_set():
|
||||
self.transport.cancel_receive()
|
||||
self._updates_thread_running.clear()
|
||||
if self._updates_thread_receiving.is_set():
|
||||
self._transport.cancel_receive()
|
||||
|
||||
def updates_thread_method(self):
|
||||
def _updates_thread_method(self):
|
||||
"""This method will run until specified and listen for incoming updates"""
|
||||
|
||||
# Set a reasonable timeout when checking for updates
|
||||
timeout = timedelta(minutes=1)
|
||||
|
||||
while self.updates_thread_running.is_set():
|
||||
while self._updates_thread_running.is_set():
|
||||
# Always sleep a bit before each iteration to relax the CPU,
|
||||
# since it's possible to early 'continue' the loop to reach
|
||||
# the next iteration, but we still should to sleep.
|
||||
if self.updates_thread_sleep:
|
||||
sleep(self.updates_thread_sleep)
|
||||
self.updates_thread_sleep = None
|
||||
if self._updates_thread_sleep:
|
||||
sleep(self._updates_thread_sleep)
|
||||
self._updates_thread_sleep = None
|
||||
else:
|
||||
# Longer sleep if we're not expecting updates (only pings)
|
||||
sleep(0.1 if self.on_update_handlers else 1)
|
||||
sleep(0.1 if self._on_update_handlers else 1)
|
||||
|
||||
# Only try to receive updates if we're not waiting to receive a request
|
||||
if not self.waiting_receive.is_set():
|
||||
with self.lock:
|
||||
self.logger.debug('Updates thread acquired the lock')
|
||||
if not self._waiting_receive.is_set():
|
||||
with self._lock:
|
||||
self._logger.debug('Updates thread acquired the lock')
|
||||
try:
|
||||
now = time()
|
||||
# If ping_interval seconds passed since last ping, send a new one
|
||||
if now >= self.ping_time_last + self.ping_interval:
|
||||
self.ping_time_last = now
|
||||
if now >= self._ping_time_last + self.ping_interval:
|
||||
self._ping_time_last = now
|
||||
self.send_ping()
|
||||
self.logger.debug('Ping sent from the updates thread')
|
||||
self._logger.debug('Ping sent from the updates thread')
|
||||
|
||||
# Exit the loop if we're not expecting to receive any updates
|
||||
if not self.on_update_handlers:
|
||||
self.logger.debug('No updates handlers found, continuing')
|
||||
if not self._on_update_handlers:
|
||||
self._logger.debug('No updates handlers found, continuing')
|
||||
continue
|
||||
|
||||
self.updates_thread_receiving.set()
|
||||
self.logger.debug('Trying to receive updates from the updates thread')
|
||||
seq, body = self.transport.receive(timeout)
|
||||
message, remote_msg_id, remote_sequence = self.decode_msg(
|
||||
self._updates_thread_receiving.set()
|
||||
self._logger.debug('Trying to receive updates from the updates thread')
|
||||
seq, body = self._transport.receive(timeout)
|
||||
message, remote_msg_id, remote_sequence = self._decode_msg(
|
||||
body)
|
||||
|
||||
self.logger.info('Received update from the updates thread')
|
||||
self._logger.info('Received update from the updates thread')
|
||||
with BinaryReader(message) as reader:
|
||||
self.process_msg(remote_msg_id, remote_sequence,
|
||||
self._process_msg(remote_msg_id, remote_sequence,
|
||||
reader)
|
||||
|
||||
except TimeoutError:
|
||||
self.logger.debug('Receiving updates timed out')
|
||||
self._logger.debug('Receiving updates timed out')
|
||||
# TODO Workaround for issue #50
|
||||
r = GetStateRequest()
|
||||
try:
|
||||
self.logger.debug('Sending GetStateRequest (workaround for issue #50)')
|
||||
self._logger.debug('Sending GetStateRequest (workaround for issue #50)')
|
||||
self.send(r)
|
||||
self.receive(r)
|
||||
except TimeoutError:
|
||||
self.logger.warning('Timed out inside a timeout, trying to reconnect...')
|
||||
self._logger.warning('Timed out inside a timeout, trying to reconnect...')
|
||||
self.reconnect()
|
||||
self.send(r)
|
||||
self.receive(r)
|
||||
|
||||
except ReadCancelledError:
|
||||
self.logger.info('Receiving updates cancelled')
|
||||
self._logger.info('Receiving updates cancelled')
|
||||
except OSError:
|
||||
self.logger.warning('OSError on updates thread, %s logging out',
|
||||
self._logger.warning('OSError on updates thread, %s logging out',
|
||||
'was' if self.logging_out else 'was not')
|
||||
|
||||
if self.logging_out:
|
||||
# This error is okay when logging out, means we got disconnected
|
||||
# TODO Not sure why this happens because we call disconnect()…
|
||||
self.set_updates_thread(running=False)
|
||||
self._set_updates_thread(running=False)
|
||||
else:
|
||||
raise
|
||||
|
||||
self.logger.debug('Updates thread released the lock')
|
||||
self.updates_thread_receiving.clear()
|
||||
self._logger.debug('Updates thread released the lock')
|
||||
self._updates_thread_receiving.clear()
|
||||
|
|
|
|||
|
|
@ -126,7 +126,7 @@ class TelegramClient:
|
|||
print('Could not stabilise initial connection: {}'.format(error))
|
||||
return False
|
||||
|
||||
def reconnect_to_dc(self, dc_id):
|
||||
def _reconnect_to_dc(self, dc_id):
|
||||
"""Reconnects to the specified DC ID. This is automatically called after an InvalidDCError is raised"""
|
||||
if self.dc_options is None or not self.dc_options:
|
||||
raise ConnectionError(
|
||||
|
|
@ -178,7 +178,7 @@ class TelegramClient:
|
|||
if throw_invalid_dc:
|
||||
raise
|
||||
|
||||
self.reconnect_to_dc(error.new_dc)
|
||||
self._reconnect_to_dc(error.new_dc)
|
||||
return self.invoke(request, timeout=timeout, throw_invalid_dc=True)
|
||||
|
||||
# region Authorization requests
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user