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cdb1674a27
Now the updates thread won't start unless you add, at least, one updates handler. Also, if the TcpClient was receiving (i.e., from an update), it will let the update to be received first instead of crashing
270 lines
11 KiB
Python
270 lines
11 KiB
Python
# This file structure is based on TLSharp
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# https://github.com/sochix/TLSharp/blob/master/TLSharp.Core/TelegramClient.cs
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import platform
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import utils
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import network.authenticator
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from errors import *
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from network import MtProtoSender, TcpTransport
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from parser.markdown_parser import parse_message_entities
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# For sending and receiving requests
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from tl import MTProtoRequest
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from tl import Session
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from tl.types import PeerUser, PeerChat, PeerChannel, InputPeerUser, InputPeerChat, InputPeerChannel, InputPeerEmpty
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from tl.functions import InvokeWithLayerRequest, InitConnectionRequest
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from tl.functions.help import GetConfigRequest
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from tl.functions.auth import SendCodeRequest, SignInRequest
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from tl.functions.messages import GetDialogsRequest, GetHistoryRequest, SendMessageRequest
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class TelegramClient:
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# region Initialization
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def __init__(self, session_user_id, layer, api_id=None, api_hash=None):
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if api_id is None or api_hash is None:
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raise PermissionError('Your API ID or Hash are invalid. Please read "Requirements" on README.md')
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self.api_id = api_id
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self.api_hash = api_hash
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self.layer = layer
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self.session = Session.try_load_or_create_new(session_user_id)
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self.transport = TcpTransport(self.session.server_address, self.session.port)
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# These will be set later
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self.dc_options = None
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self.sender = None
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self.phone_code_hashes = {}
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# endregion
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# region Connecting
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def connect(self, reconnect=False):
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"""Connects to the Telegram servers, executing authentication if required.
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Note that authenticating to the Telegram servers is not the same as authenticating
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the app, which requires to send a code first."""
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try:
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if not self.session.auth_key or reconnect:
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self.session.auth_key, self.session.time_offset = \
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network.authenticator.do_authentication(self.transport)
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self.session.save()
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self.sender = MtProtoSender(self.transport, self.session)
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# Now it's time to send an InitConnectionRequest
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# This must always be invoked with the layer we'll be using
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query = InitConnectionRequest(api_id=self.api_id,
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device_model=platform.node(),
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system_version=platform.system(),
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app_version='0.3',
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lang_code='en',
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query=GetConfigRequest())
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result = self.invoke(InvokeWithLayerRequest(layer=self.layer, query=query))
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# We're only interested in the DC options,
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# although many other options are available!
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self.dc_options = result.dc_options
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return True
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except RPCError as error:
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print('Could not stabilise initial connection: {}'.format(error))
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return False
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def reconnect_to_dc(self, dc_id):
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"""Reconnects to the specified DC ID. This is automatically called after an InvalidDCError is raised"""
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if self.dc_options is None or not self.dc_options:
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raise ConnectionError("Can't reconnect. Stabilise an initial connection first.")
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dc = next(dc for dc in self.dc_options if dc.id == dc_id)
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self.transport.close()
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self.transport = TcpTransport(dc.ip_address, dc.port)
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self.session.server_address = dc.ip_address
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self.session.port = dc.port
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self.session.save()
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self.connect(reconnect=True)
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def disconnect(self):
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"""Disconnects from the Telegram server **and pauses all the spawned threads**"""
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if self.sender:
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self.sender.disconnect()
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# endregion
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# region Telegram requests functions
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def is_user_authorized(self):
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"""Has the user been authorized yet (code request sent and confirmed)?
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Note that this will NOT yield the correct result if the session was revoked by another client!"""
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return self.session.user is not None
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def send_code_request(self, phone_number):
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"""Sends a code request to the specified phone number"""
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request = SendCodeRequest(phone_number, self.api_id, self.api_hash)
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completed = False
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while not completed:
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try:
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result = self.invoke(request)
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self.phone_code_hashes[phone_number] = result.phone_code_hash
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completed = True
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except InvalidDCError as error:
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self.reconnect_to_dc(error.new_dc)
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def make_auth(self, phone_number, code):
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"""Completes the authorization of a phone number by providing the received code"""
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if phone_number not in self.phone_code_hashes:
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raise ValueError('Please make sure you have called send_code_request first.')
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# TODO Handle invalid code
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request = SignInRequest(phone_number, self.phone_code_hashes[phone_number], code)
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self.sender.send(request)
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self.sender.receive(request)
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# Result is an Auth.Authorization TLObject
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self.session.user = request.result.user
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self.session.save()
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# Now that we're authorized, we can listen for incoming updates
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self.sender.set_listen_for_updates(True)
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return self.session.user
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def get_dialogs(self, count=10, offset_date=None, offset_id=0, offset_peer=InputPeerEmpty()):
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"""Returns a tuple of lists ([dialogs], [displays], [input_peers]) with 'count' items each"""
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r = self.invoke(GetDialogsRequest(offset_date=offset_date,
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offset_id=offset_id,
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offset_peer=offset_peer,
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limit=count))
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return (r.dialogs,
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[self.find_display_name(d.peer, r.users, r.chats) for d in r.dialogs],
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[self.find_input_peer(d.peer, r.users, r.chats) for d in r.dialogs])
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def send_message(self, input_peer, message, markdown=False, no_web_page=False):
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"""Sends a message to the given input peer"""
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if markdown:
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msg, entities = parse_message_entities(message)
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else:
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msg, entities = message, []
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self.invoke(SendMessageRequest(peer=input_peer,
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message=msg,
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random_id=utils.generate_random_long(),
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entities=entities,
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no_webpage=no_web_page))
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def get_message_history(self, input_peer, limit=20,
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offset_date=None, offset_id=0, max_id=0, min_id=0, add_offset=0):
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"""
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Gets the message history for the specified InputPeer
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:param input_peer: The InputPeer from whom to retrieve the message history
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:param limit: Number of messages to be retrieved
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:param offset_date: Offset date (messages *previous* to this date will be retrieved)
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:param offset_id: Offset message ID (only messages *previous* to the given ID will be retrieved)
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:param max_id: All the messages with a higher (newer) ID or equal to this will be excluded
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:param min_id: All the messages with a lower (older) ID or equal to this will be excluded
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:param add_offset: Additional message offset (all of the specified offsets + this offset = older messages)
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:return: A tuple containing total message count and two more lists ([messages], [senders]).
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Note that the sender can be null if it was not found!
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"""
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result = self.invoke(GetHistoryRequest(input_peer,
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limit=limit,
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offset_date=offset_date,
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offset_id=offset_id,
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max_id=max_id,
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min_id=min_id,
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add_offset=add_offset))
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# The result may be a messages slice (not all messages were retrieved) or
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# simply a messages TLObject. In the later case, no "count" attribute is specified:
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# the total messages count is retrieved by counting all the retrieved messages
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total_messages = getattr(result, 'count', len(result.messages))
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return (total_messages,
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result.messages,
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[usr # Create a list with the users...
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if usr.id == msg.from_id else None # ...whose ID equals the current message ID...
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for msg in result.messages # ...from all the messages...
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for usr in result.users]) # ...from all of the available users
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def invoke(self, request):
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"""Invokes an MTProtoRequest and returns its results"""
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if not issubclass(type(request), MTProtoRequest):
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raise ValueError('You can only invoke MtProtoRequests')
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self.sender.send(request)
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self.sender.receive(request)
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return request.result
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# endregion
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# region Utilities
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@staticmethod
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def find_display_name(peer, users, chats):
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"""Searches the display name for peer in both users and chats.
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Returns None if it was not found"""
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try:
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if type(peer) is PeerUser:
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user = next(u for u in users if u.id == peer.user_id)
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if user.last_name is not None:
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return '{} {}'.format(user.first_name, user.last_name)
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return user.first_name
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elif type(peer) is PeerChat:
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return next(c for c in chats if c.id == peer.chat_id).title
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elif type(peer) is PeerChannel:
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return next(c for c in chats if c.id == peer.channel_id).title
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except StopIteration:
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pass
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return None
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@staticmethod
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def find_input_peer(peer, users, chats):
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"""Searches the given peer in both users and chats and returns an InputPeer for it.
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Returns None if it was not found"""
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try:
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if type(peer) is PeerUser:
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user = next(u for u in users if u.id == peer.user_id)
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return InputPeerUser(user.id, user.access_hash)
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elif type(peer) is PeerChat:
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chat = next(c for c in chats if c.id == peer.chat_id)
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return InputPeerChat(chat.id)
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elif type(peer) is PeerChannel:
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channel = next(c for c in chats if c.id == peer.channel_id)
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return InputPeerChannel(channel.id, channel.access_hash)
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except StopIteration:
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return None
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# endregion
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# region Updates handling
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def add_update_handler(self, handler):
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"""Adds an update handler (a function which takes a TLObject,
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an update, as its parameter) and listens for updates"""
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self.sender.add_update_handler(handler)
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def remove_update_handler(self, handler):
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self.sender.remove_update_handler(handler)
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# endregion
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