mirror of
https://github.com/LonamiWebs/Telethon.git
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410 lines
14 KiB
Python
410 lines
14 KiB
Python
import asyncio
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import getpass
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import inspect
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import os
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import sys
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import typing
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import warnings
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import functools
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import time
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import dataclasses
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from .._misc import utils, helpers, password as pwd_mod
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from .. import errors, _tl
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from ..types import _custom
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if typing.TYPE_CHECKING:
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from .telegramclient import TelegramClient
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class StartingClient:
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def __init__(self, client, start_fn):
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self.client = client
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self.start_fn = start_fn
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async def __aenter__(self):
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await self.start_fn()
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return self.client
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async def __aexit__(self, *args):
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await self.client.__aexit__(*args)
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def __await__(self):
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return self.__aenter__().__await__()
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def start(
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self: 'TelegramClient',
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phone: typing.Callable[[], str] = lambda: input('Please enter your phone (or bot token): '),
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password: typing.Callable[[], str] = lambda: getpass.getpass('Please enter your password: '),
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*,
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bot_token: str = None,
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code_callback: typing.Callable[[], typing.Union[str, int]] = None,
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first_name: str = 'New User',
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last_name: str = '',
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max_attempts: int = 3) -> 'TelegramClient':
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if code_callback is None:
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def code_callback():
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return input('Please enter the code you received: ')
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elif not callable(code_callback):
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raise ValueError(
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'The code_callback parameter needs to be a callable '
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'function that returns the code you received by Telegram.'
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)
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if not phone and not bot_token:
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raise ValueError('No phone number or bot token provided.')
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if phone and bot_token and not callable(phone):
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raise ValueError('Both a phone and a bot token provided, '
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'must only provide one of either')
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return StartingClient(self, functools.partial(_start,
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self=self,
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phone=phone,
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password=password,
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bot_token=bot_token,
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code_callback=code_callback,
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first_name=first_name,
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last_name=last_name,
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max_attempts=max_attempts
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))
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async def _start(
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self: 'TelegramClient', phone, password, bot_token,
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code_callback, first_name, last_name, max_attempts):
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if not self.is_connected:
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await self.connect()
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# Rather than using `is_user_authorized`, use `get_me`. While this is
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# more expensive and needs to retrieve more data from the server, it
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# enables the library to warn users trying to login to a different
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# account. See #1172.
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me = await self.get_me()
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if me is not None:
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# The warnings here are on a best-effort and may fail.
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if bot_token:
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# bot_token's first part has the bot ID, but it may be invalid
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# so don't try to parse as int (instead cast our ID to string).
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if bot_token[:bot_token.find(':')] != str(me.id):
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warnings.warn(
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'the session already had an authorized user so it did '
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'not login to the bot account using the provided '
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'bot_token (it may not be using the user you expect)'
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)
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elif phone and not callable(phone) and utils.parse_phone(phone) != me.phone:
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warnings.warn(
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'the session already had an authorized user so it did '
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'not login to the user account using the provided '
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'phone (it may not be using the user you expect)'
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)
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return self
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if not bot_token:
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# Turn the callable into a valid phone number (or bot token)
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while callable(phone):
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value = phone()
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if inspect.isawaitable(value):
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value = await value
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if ':' in value:
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# Bot tokens have 'user_id:access_hash' format
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bot_token = value
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break
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phone = utils.parse_phone(value) or phone
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if bot_token:
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await self.sign_in(bot_token=bot_token)
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return self
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me = None
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attempts = 0
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two_step_detected = False
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await self.send_code_request(phone)
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sign_up = False # assume login
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while attempts < max_attempts:
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try:
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value = code_callback()
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if inspect.isawaitable(value):
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value = await value
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# Since sign-in with no code works (it sends the code)
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# we must double-check that here. Else we'll assume we
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# logged in, and it will return None as the User.
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if not value:
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raise errors.PhoneCodeEmptyError(request=None)
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if sign_up:
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me = await self.sign_up(value, first_name, last_name)
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else:
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# Raises SessionPasswordNeededError if 2FA enabled
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me = await self.sign_in(phone, code=value)
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break
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except errors.SessionPasswordNeededError:
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two_step_detected = True
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break
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except errors.PhoneNumberOccupiedError:
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sign_up = False
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except errors.PhoneNumberUnoccupiedError:
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sign_up = True
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except (errors.PhoneCodeEmptyError,
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errors.PhoneCodeExpiredError,
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errors.PhoneCodeHashEmptyError,
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errors.PhoneCodeInvalidError):
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print('Invalid code. Please try again.', file=sys.stderr)
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attempts += 1
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else:
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raise RuntimeError(
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'{} consecutive sign-in attempts failed. Aborting'
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.format(max_attempts)
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)
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if two_step_detected:
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if not password:
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raise ValueError(
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"Two-step verification is enabled for this account. "
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"Please provide the 'password' argument to 'start()'."
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)
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if callable(password):
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for _ in range(max_attempts):
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try:
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value = password()
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if inspect.isawaitable(value):
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value = await value
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me = await self.sign_in(phone=phone, password=value)
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break
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except errors.PasswordHashInvalidError:
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print('Invalid password. Please try again',
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file=sys.stderr)
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else:
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raise errors.PasswordHashInvalidError(request=None)
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else:
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me = await self.sign_in(phone=phone, password=password)
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# We won't reach here if any step failed (exit by exception)
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signed, name = 'Signed in successfully as', utils.get_display_name(me)
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try:
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print(signed, name)
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except UnicodeEncodeError:
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# Some terminals don't support certain characters
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print(signed, name.encode('utf-8', errors='ignore')
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.decode('ascii', errors='ignore'))
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return self
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async def sign_in(
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self: 'TelegramClient',
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*,
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code: typing.Union[str, int] = None,
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password: str = None,
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bot_token: str = None,) -> 'typing.Union[_tl.User, _tl.auth.SentCode]':
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if code and bot_token:
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raise ValueError('Can only provide one of code or bot_token, not both')
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if not code and not bot_token and not password:
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raise ValueError('You must provide code, password, or bot_token.')
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if code:
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if not self._phone_code_hash:
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raise ValueError('Must call client.send_code_request before sign in')
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# May raise PhoneCodeEmptyError, PhoneCodeExpiredError,
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# PhoneCodeHashEmptyError or PhoneCodeInvalidError.
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try:
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result = await self(_tl.fn.auth.SignIn(*self._phone_code_hash, str(code)))
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password = None # user provided a password but it was not needed
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except errors.SessionPasswordNeededError:
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if not password:
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raise
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elif bot_token:
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result = await self(_tl.fn.auth.ImportBotAuthorization(
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flags=0, bot_auth_token=bot_token,
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api_id=self._api_id, api_hash=self._api_hash
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))
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if password:
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pwd = await self(_tl.fn.account.GetPassword())
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result = await self(_tl.fn.auth.CheckPassword(
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pwd_mod.compute_check(pwd, password)
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))
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if isinstance(result, _tl.auth.AuthorizationSignUpRequired):
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# The method must return the User but we don't have it, so raise instead (matches pre-layer 104 behaviour)
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self._tos = (result.terms_of_service, None)
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raise errors.SignUpRequired()
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return await _update_session_state(self, result.user)
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async def sign_up(
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self: 'TelegramClient',
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first_name: str,
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last_name: str = '',
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*,
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code: typing.Union[str, int]) -> '_tl.User':
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if not self._phone_code_hash:
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# This check is also present in sign_in but we do it here to customize the error message
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raise ValueError('Must call client.send_code_request before sign up')
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# To prevent abuse, one has to try to sign in before signing up. This
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# is the current way in which Telegram validates the code to sign up.
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#
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# `sign_in` will set `_tos`, so if it's set we don't need to call it
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# because the user already tried to sign in.
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#
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# We're emulating pre-layer 104 behaviour so except the right error:
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try:
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return await self.sign_in(code=code)
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except errors.SignUpRequired:
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pass # code is correct and was used, now need to sign in
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result = await self(_tl.fn.auth.SignUp(
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phone_number=phone,
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phone_code_hash=phone_code_hash,
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first_name=first_name,
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last_name=last_name
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))
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return await _update_session_state(self, result.user)
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async def get_tos(self):
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first_time = self._tos is None
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no_tos = self._tos and self._tos[0] is None
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tos_expired = self._tos and self._tos[1] is not None and asyncio.get_running_loop().time() >= self._tos[1]
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if first_time or no_tos or tos_expired:
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result = await self(_tl.fn.help.GetTermsOfServiceUpdate())
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tos = getattr(result, 'terms_of_service', None)
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self._tos = (tos, asyncio.get_running_loop().time() + result.expires.timestamp() - time.time())
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# not stored in the client to prevent a cycle
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return _custom.TermsOfService._new(self, *self._tos)
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async def _update_session_state(self, user, save=True):
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"""
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Callback called whenever the login or sign up process completes.
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Returns the input user parameter.
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"""
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state = await self(_tl.fn.updates.GetState())
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await _replace_session_state(
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self,
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save=save,
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user_id=user.id,
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bot=user.bot,
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pts=state.pts,
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qts=state.qts,
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date=int(state.date.timestamp()),
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seq=state.seq,
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)
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self._phone_code_hash = None
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return _custom.User._new(self, user)
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async def _replace_session_state(self, *, save=True, **changes):
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new = dataclasses.replace(self._session_state, **changes)
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await self._session.set_state(new)
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self._session_state = new
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if save:
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await self._session.save()
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async def send_code_request(
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self: 'TelegramClient',
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phone: str) -> 'SentCode':
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phone = utils.parse_phone(phone)
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if self._phone_code_hash and phone == self._phone_code_hash[0]:
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result = await self(_tl.fn.auth.ResendCode(*self._phone_code_hash))
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else:
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try:
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result = await self(_tl.fn.auth.SendCode(
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phone, self._api_id, self._api_hash, _tl.CodeSettings()))
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except errors.AuthRestartError:
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return await self.send_code_request(phone)
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# phone_code_hash may be empty, if it is, do not save it (#1283)
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if not result.phone_code_hash:
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# The hash is required to login, so this pretty much means send code failed
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raise ValueError('Failed to send code')
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self._phone_code_hash = (phone, result.phone_code_hash)
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return _custom.SentCode._new(result)
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async def qr_login(self: 'TelegramClient', ignored_ids: typing.List[int] = None) -> _custom.QRLogin:
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qr_login = _custom.QRLogin(self, ignored_ids or [])
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await qr_login.recreate()
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return qr_login
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async def log_out(self: 'TelegramClient') -> bool:
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try:
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await self(_tl.fn.auth.LogOut())
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except errors.RpcError:
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return False
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await self.disconnect()
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return True
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async def edit_2fa(
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self: 'TelegramClient',
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current_password: str = None,
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new_password: str = None,
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*,
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hint: str = '',
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email: str = None,
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email_code_callback: typing.Callable[[int], str] = None) -> bool:
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if new_password is None and current_password is None:
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return False
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if email and not callable(email_code_callback):
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raise ValueError('email present without email_code_callback')
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pwd = await self(_tl.fn.account.GetPassword())
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pwd.new_algo.salt1 += os.urandom(32)
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assert isinstance(pwd, _tl.account.Password)
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if not pwd.has_password and current_password:
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current_password = None
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if current_password:
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password = pwd_mod.compute_check(pwd, current_password)
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else:
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password = _tl.InputCheckPasswordEmpty()
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if new_password:
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new_password_hash = pwd_mod.compute_digest(
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pwd.new_algo, new_password)
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else:
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new_password_hash = b''
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try:
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await self(_tl.fn.account.UpdatePasswordSettings(
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password=password,
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new_settings=_tl.account.PasswordInputSettings(
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new_algo=pwd.new_algo,
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new_password_hash=new_password_hash,
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hint=hint,
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email=email,
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new_secure_settings=None
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)
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))
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except errors.EmailUnconfirmedError as e:
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code = email_code_callback(e.code_length)
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if inspect.isawaitable(code):
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code = await code
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code = str(code)
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await self(_tl.fn.account.ConfirmPasswordEmail(code))
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return True
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