mirror of
https://github.com/LonamiWebs/Telethon.git
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585 lines
25 KiB
Python
585 lines
25 KiB
Python
import platform
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from datetime import datetime
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from hashlib import md5
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from os import path
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from mimetypes import guess_extension, guess_type
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# For sending and receiving requests
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from telethon.tl import MTProtoRequest
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from telethon.tl import Session
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# The Requests and types that we'll be using
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from telethon.tl.functions.upload import SaveBigFilePartRequest
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from telethon.tl.types import \
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PeerUser, PeerChat, PeerChannel, \
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InputPeerUser, InputPeerChat, InputPeerChannel, InputPeerEmpty, \
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InputFile, InputFileLocation, InputMediaUploadedPhoto, InputMediaUploadedDocument, \
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MessageMediaContact, MessageMediaDocument, MessageMediaPhoto, \
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DocumentAttributeAudio, DocumentAttributeFilename, InputDocumentFileLocation
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from telethon.tl.functions import InvokeWithLayerRequest, InitConnectionRequest
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from telethon.tl.functions.help import GetConfigRequest
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from telethon.tl.functions.auth import SendCodeRequest, SignInRequest, SignUpRequest, LogOutRequest
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from telethon.tl.functions.upload import SaveFilePartRequest, GetFileRequest
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from telethon.tl.functions.messages import GetDialogsRequest, GetHistoryRequest, SendMessageRequest, SendMediaRequest
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import telethon.helpers as utils
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import telethon.network.authenticator as authenticator
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from telethon.errors import *
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from telethon.network import MtProtoSender, TcpTransport
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from telethon.parser.markdown_parser import parse_message_entities
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from telethon.tl.all_tlobjects import layer
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class TelegramClient:
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# region Initialization
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def __init__(self, session_user_id, api_id, api_hash):
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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.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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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='0.4',
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lang_code='en',
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query=GetConfigRequest())
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result = self.invoke(InvokeWithLayerRequest(layer=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 invoke(self, request):
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"""Invokes a MTProtoRequest (sends and receives it) and returns its result"""
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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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# region Authorization requests
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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 sign_in(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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try:
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result = self.invoke(SignInRequest(
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phone_number, self.phone_code_hashes[phone_number], code))
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except RPCError as error:
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if error.message.startswith('PHONE_CODE_'):
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print(error)
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return False
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else:
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raise error
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# Result is an Auth.Authorization TLObject
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self.session.user = 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 True
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def sign_up(self, phone_number, code, first_name, last_name=''):
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"""Signs up to Telegram. Make sure you sent a code request first!"""
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result = self.invoke(SignUpRequest(phone_number=phone_number,
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phone_code_hash=self.phone_code_hashes[phone_number],
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phone_code=code,
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first_name=first_name,
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last_name=last_name))
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self.session.user = result.user
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self.session.save()
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def log_out(self):
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"""Logs out and deletes the current session. Returns True if everything went OK"""
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try:
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# This request is a bit special. Nothing is received after
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self.sender.send(LogOutRequest())
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if not self.session.delete():
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return False
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self.session = None
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except:
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return False
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# endregion
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# region Dialogs ("chats") requests
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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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# endregion
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# region Message requests
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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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# Iterate over all the messages and find the sender User
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users = []
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for msg in result.messages:
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for usr in result.users:
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if msg.from_id == usr.id:
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users.append(usr)
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break
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return total_messages, result.messages, users
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# endregion
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# TODO Handle media downloading/uploading in a different session?
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# "It is recommended that large queries (upload.getFile, upload.saveFilePart)
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# be handled through a separate session and a separate connection"
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# region Uploading media requests
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def upload_file(self, file_path, part_size_kb=None, file_name=None, progress_callback=None):
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"""Uploads the specified file_path and returns a handle which can be later used
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:param file_path: The file path of the file that will be uploaded
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:param part_size_kb: The part size when uploading the file. None = Automatic
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:param file_name: The name of the uploaded file. None = Automatic
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:param progress_callback: A callback function which takes two parameters,
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uploaded size (in bytes) and total file size (in bytes)
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This is called every time a part is uploaded
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"""
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file_size = path.getsize(file_path)
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if not part_size_kb:
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part_size_kb = self.find_appropiate_part_size(file_size)
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if part_size_kb > 512:
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raise ValueError('The part size must be less or equal to 512KB')
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part_size = int(part_size_kb * 1024)
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if part_size % 1024 != 0:
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raise ValueError('The part size must be evenly divisible by 1024')
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# Determine whether the file is too big (over 10MB) or not
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# Telegram does make a distinction between smaller or larger files
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is_large = file_size > 10 * 1024 * 1024
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part_count = (file_size + part_size - 1) // part_size
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# Multiply the datetime timestamp by 10^6 to get the ticks
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# This is high likely going to be unique
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file_id = int(datetime.now().timestamp() * (10 ** 6))
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hash_md5 = md5()
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with open(file_path, 'rb') as file:
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for part_index in range(part_count):
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# Read the file by in chunks of size part_size
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part = file.read(part_size)
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# The SavePartRequest is different depending on whether
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# the file is too large or not (over or less than 10MB)
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if is_large:
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request = SaveBigFilePartRequest(file_id, part_index, part_count, part)
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else:
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request = SaveFilePartRequest(file_id, part_index, part)
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# Invoke the file upload and increment both the part index and MD5 checksum
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result = self.invoke(request)
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if result:
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hash_md5.update(part)
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if progress_callback:
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progress_callback(file.tell(), file_size)
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else:
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raise ValueError('Could not upload file part #{}'.format(part_index))
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# Set a default file name if None was specified
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if not file_name:
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file_name = path.basename(file_path)
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# After the file has been uploaded, we can return a handle pointing to it
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return InputFile(id=file_id,
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parts=part_count,
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name=file_name,
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md5_checksum=hash_md5.hexdigest())
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def send_photo_file(self, input_file, input_peer, caption=''):
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"""Sends a previously uploaded input_file
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(which should be a photo) to an input_peer"""
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self.send_media_file(
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InputMediaUploadedPhoto(input_file, caption), input_peer)
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def send_document_file(self, input_file, input_peer, caption=''):
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"""Sends a previously uploaded input_file
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(which should be a document) to an input_peer"""
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# Determine mime-type and attributes
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# Take the first element by using [0] since it returns a tuple
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mime_type = guess_type(input_file.name)[0]
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attributes = [
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DocumentAttributeFilename(input_file.name)
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# TODO If the input file is an audio, find out:
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# Performer and song title and add DocumentAttributeAudio
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]
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# Ensure we have a mime type, any; but it cannot be None
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# «The "octet-stream" subtype is used to indicate that a body contains arbitrary binary data.»
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if not mime_type:
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mime_type = 'application/octet-stream'
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self.send_media_file(InputMediaUploadedDocument(file=input_file,
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mime_type=mime_type,
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attributes=attributes,
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caption=caption), input_peer)
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def send_media_file(self, input_media, input_peer):
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"""Sends any input_media (contact, document, photo...) to an input_peer"""
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self.invoke(SendMediaRequest(peer=input_peer,
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media=input_media,
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random_id=utils.generate_random_long()))
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# endregion
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# region Downloading media requests
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def download_msg_media(self, message_media, file_path, add_extension=True, progress_callback=None):
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"""Downloads the given MessageMedia (Photo, Document or Contact)
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into the desired file_path, optionally finding its extension automatically
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The progress_callback should be a callback function which takes two parameters,
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uploaded size (in bytes) and total file size (in bytes).
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This will be called every time a part is downloaded"""
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if type(message_media) == MessageMediaPhoto:
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return self.download_photo(message_media, file_path, add_extension, progress_callback)
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elif type(message_media) == MessageMediaDocument:
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return self.download_document(message_media, file_path, add_extension, progress_callback)
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elif type(message_media) == MessageMediaContact:
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return self.download_contact(message_media, file_path, add_extension)
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def download_photo(self, message_media_photo, file_path, add_extension=False,
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progress_callback=None):
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"""Downloads MessageMediaPhoto's largest size into the desired
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file_path, optionally finding its extension automatically
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The progress_callback should be a callback function which takes two parameters,
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uploaded size (in bytes) and total file size (in bytes).
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This will be called every time a part is downloaded"""
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# Determine the photo and its largest size
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photo = message_media_photo.photo
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largest_size = photo.sizes[-1]
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file_size = largest_size.size
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largest_size = largest_size.location
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# Photos are always compressed into a .jpg by Telegram
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if add_extension:
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file_path += '.jpg'
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# Download the media with the largest size input file location
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self.download_file_loc(InputFileLocation(volume_id=largest_size.volume_id,
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local_id=largest_size.local_id,
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secret=largest_size.secret),
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file_path, file_size, progress_callback)
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return file_path
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def download_document(self, message_media_document, file_path=None, add_extension=True,
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progress_callback=None):
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"""Downloads the given MessageMediaDocument into the desired
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file_path, optionally finding its extension automatically.
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If no file_path is given, it will try to be guessed from the document
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The progress_callback should be a callback function which takes two parameters,
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uploaded size (in bytes) and total file size (in bytes).
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This will be called every time a part is downloaded"""
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document = message_media_document.document
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file_size = document.size
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# If no file path was given, try to guess it from the attributes
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if file_path is None:
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for attr in document.attributes:
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if type(attr) == DocumentAttributeFilename:
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file_path = attr.file_name
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break # This attribute has higher preference
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elif type(attr) == DocumentAttributeAudio:
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file_path = '{} - {}'.format(attr.performer, attr.title)
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if file_path is None:
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print('Could not determine a filename for the document')
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# Guess the extension based on the mime_type
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if add_extension:
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ext = guess_extension(document.mime_type)
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if ext is not None:
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file_path += ext
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self.download_file_loc(InputDocumentFileLocation(id=document.id,
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access_hash=document.access_hash,
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version=document.version),
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file_path, file_size, progress_callback)
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return file_path
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@staticmethod
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def download_contact(message_media_contact, file_path, add_extension=True):
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"""Downloads a media contact using the vCard 4.0 format"""
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first_name = message_media_contact.first_name
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last_name = message_media_contact.last_name
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phone_number = message_media_contact.phone_number
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# The only way we can save a contact in an understandable
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# way by phones is by using the .vCard format
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if add_extension:
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file_path += '.vcard'
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# Ensure that we'll be able to download the contact
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utils.ensure_parent_dir_exists(file_path)
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with open(file_path, 'w', encoding='utf-8') as file:
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file.write('BEGIN:VCARD\n')
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file.write('VERSION:4.0\n')
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file.write('N:{};{};;;\n'.format(first_name, last_name if last_name else ''))
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file.write('FN:{}\n'.format(' '.join((first_name, last_name))))
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file.write('TEL;TYPE=cell;VALUE=uri:tel:+{}\n'.format(phone_number))
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file.write('END:VCARD\n')
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return file_path
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def download_file_loc(self, input_location, file_path, part_size_kb=64,
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file_size=None, progress_callback=None):
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"""Downloads media from the given input_file_location to the specified file_path.
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If a progress_callback function is given, it will be called taking two
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arguments (downloaded bytes count and total file size)"""
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if not part_size_kb:
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if not file_size:
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raise ValueError('A part size value must be provided')
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else:
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part_size_kb = self.find_appropiate_part_size(file_size)
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part_size = int(part_size_kb * 1024)
|
|
if part_size % 1024 != 0:
|
|
raise ValueError('The part size must be evenly divisible by 1024')
|
|
|
|
# Ensure that we'll be able to download the media
|
|
utils.ensure_parent_dir_exists(file_path)
|
|
|
|
# Start with an offset index of 0
|
|
offset_index = 0
|
|
with open(file_path, 'wb') as file:
|
|
while True:
|
|
# The current offset equals the offset_index multiplied by the part size
|
|
offset = offset_index * part_size
|
|
result = self.invoke(GetFileRequest(input_location, offset, part_size))
|
|
offset_index += 1
|
|
|
|
# If we have received no data (0 bytes), the file is over
|
|
# So there is nothing left to download and write
|
|
if not result.bytes:
|
|
return result.type # Return some extra information
|
|
|
|
file.write(result.bytes)
|
|
if progress_callback:
|
|
progress_callback(file.tell(), file_size)
|
|
|
|
# endregion
|
|
|
|
# endregion
|
|
|
|
# region Utilities
|
|
|
|
@staticmethod
|
|
def find_display_name(peer, users, chats):
|
|
"""Searches the display name for peer in both users and chats.
|
|
Returns None if it was not found"""
|
|
try:
|
|
if type(peer) is PeerUser:
|
|
user = next(u for u in users if u.id == peer.user_id)
|
|
if user.last_name is not None:
|
|
return '{} {}'.format(user.first_name, user.last_name)
|
|
return user.first_name
|
|
|
|
elif type(peer) is PeerChat:
|
|
return next(c for c in chats if c.id == peer.chat_id).title
|
|
|
|
elif type(peer) is PeerChannel:
|
|
return next(c for c in chats if c.id == peer.channel_id).title
|
|
|
|
except StopIteration:
|
|
pass
|
|
|
|
return None
|
|
|
|
@staticmethod
|
|
def find_input_peer(peer, users, chats):
|
|
"""Searches the given peer in both users and chats and returns an InputPeer for it.
|
|
Returns None if it was not found"""
|
|
try:
|
|
if type(peer) is PeerUser:
|
|
user = next(u for u in users if u.id == peer.user_id)
|
|
return InputPeerUser(user.id, user.access_hash)
|
|
|
|
elif type(peer) is PeerChat:
|
|
chat = next(c for c in chats if c.id == peer.chat_id)
|
|
return InputPeerChat(chat.id)
|
|
|
|
elif type(peer) is PeerChannel:
|
|
channel = next(c for c in chats if c.id == peer.channel_id)
|
|
return InputPeerChannel(channel.id, channel.access_hash)
|
|
|
|
except StopIteration:
|
|
return None
|
|
|
|
@staticmethod
|
|
def find_appropiate_part_size(file_size):
|
|
if file_size <= 1048576: # 1MB
|
|
return 32
|
|
if file_size <= 10485760: # 10MB
|
|
return 64
|
|
if file_size <= 393216000: # 375MB
|
|
return 128
|
|
if file_size <= 786432000: # 750MB
|
|
return 256
|
|
if file_size <= 1572864000: # 1500MB
|
|
return 512
|
|
|
|
raise ValueError('File size too large')
|
|
|
|
# endregion
|
|
|
|
# region Updates handling
|
|
|
|
def add_update_handler(self, handler):
|
|
"""Adds an update handler (a function which takes a TLObject,
|
|
an update, as its parameter) and listens for updates"""
|
|
self.sender.add_update_handler(handler)
|
|
|
|
def remove_update_handler(self, handler):
|
|
self.sender.remove_update_handler(handler)
|
|
|
|
# endregion
|