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asyncio-stale
Telethon/telethon/telegram_client.py
Andrey Egorov 43a0226b33 Merge branch 'asyncio' into asyncio-upstream 
* asyncio:
  Not need to save (salt is out of DB)
  Very rare exception in the case of reconnect
  updates_handler is out from MtProtoSender to gc works properly; unauth_handler log format fix
  Memory leaks fix
  Pretty format of TLObject's
  More accurate clear pendings
  Another attempt to prevent duplicates
  Handle updates and other refactoring
  SocketClosed exception
  Refactoring of TcpClient
  Socket OSError logging
  More aggressive catching network errors
  No route to host catched + other errno to reconnect

# Conflicts (resolved):
#	telethon/extensions/tcp_client.py
#	telethon/network/mtproto_sender.py
#	telethon/telegram_bare_client.py
#	telethon/tl/session.py
2018-06-14 15:21:50 +03:00

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import asyncio
import getpass
import hashlib
import io
import itertools
import logging
import os
import re
import sys
import time
import warnings
from collections import UserList
from datetime import datetime, timedelta
from io import BytesIO
from mimetypes import guess_type
from async_generator import async_generator, yield_
from .crypto import CdnDecrypter
from .tl import TLObject
from .tl.custom import InputSizedFile
from .tl.functions.updates import GetDifferenceRequest
from .tl.functions.upload import (
SaveBigFilePartRequest, SaveFilePartRequest, GetFileRequest
)
from .tl.types.updates import (
DifferenceSlice, DifferenceEmpty, Difference, DifferenceTooLong
)
from .tl.types.upload import FileCdnRedirect
try:
import socks
except ImportError:
socks = None
try:
import hachoir
import hachoir.metadata
import hachoir.parser
except ImportError:
hachoir = None
from . import TelegramBareClient
from . import helpers, utils, events
from .errors import (
RPCError, UnauthorizedError, PhoneCodeEmptyError, PhoneCodeExpiredError,
PhoneCodeHashEmptyError, PhoneCodeInvalidError, LocationInvalidError,
SessionPasswordNeededError, FileMigrateError, PhoneNumberUnoccupiedError,
PhoneNumberOccupiedError, UsernameNotOccupiedError
)
from .network import ConnectionTcpFull
from .tl.custom import Draft, Dialog
from .tl.functions.account import (
GetPasswordRequest, UpdatePasswordSettingsRequest
)
from .tl.functions.auth import (
CheckPasswordRequest, LogOutRequest, SendCodeRequest, SignInRequest,
SignUpRequest, ResendCodeRequest, ImportBotAuthorizationRequest
)
from .tl.functions.contacts import (
GetContactsRequest, ResolveUsernameRequest
)
from .tl.functions.messages import (
GetDialogsRequest, GetHistoryRequest, SendMediaRequest,
SendMessageRequest, GetChatsRequest, GetAllDraftsRequest,
CheckChatInviteRequest, ReadMentionsRequest, SendMultiMediaRequest,
UploadMediaRequest, EditMessageRequest, GetFullChatRequest,
ForwardMessagesRequest, SearchRequest
)
from .tl.functions import channels
from .tl.functions import messages
from .tl.functions.users import (
GetUsersRequest
)
from .tl.functions.channels import (
GetChannelsRequest, GetFullChannelRequest, GetParticipantsRequest
)
from .tl.types import (
DocumentAttributeAudio, DocumentAttributeFilename,
InputMediaUploadedDocument, InputMediaUploadedPhoto, InputPeerEmpty,
Message, MessageMediaContact, MessageMediaDocument, MessageMediaPhoto,
InputUserSelf, UserProfilePhoto, ChatPhoto, UpdateMessageID,
UpdateNewChannelMessage, UpdateNewMessage, UpdateShortSentMessage,
PeerUser, InputPeerUser, InputPeerChat, InputPeerChannel, MessageEmpty,
ChatInvite, ChatInviteAlready, PeerChannel, Photo, InputPeerSelf,
InputSingleMedia, InputMediaPhoto, InputPhoto, InputFile, InputFileBig,
InputDocument, InputMediaDocument, Document, MessageEntityTextUrl,
InputMessageEntityMentionName, DocumentAttributeVideo,
UpdateEditMessage, UpdateEditChannelMessage, UpdateShort, Updates,
MessageMediaWebPage, ChannelParticipantsSearch, PhotoSize, PhotoCachedSize,
PhotoSizeEmpty, MessageService, ChatParticipants, User, WebPage,
ChannelParticipantsBanned, ChannelParticipantsKicked,
InputMessagesFilterEmpty
)
from .tl.types.messages import DialogsSlice
from .tl.types.account import PasswordInputSettings, NoPassword
from .extensions import markdown, html
__log__ = logging.getLogger(__name__)
class TelegramClient(TelegramBareClient):
"""
Initializes the Telegram client with the specified API ID and Hash.
Args:
session (`str` | `telethon.sessions.abstract.Session`, `None`):
The file name of the session file to be used if a string is
given (it may be a full path), or the Session instance to be
used otherwise. If it's ``None``, the session will not be saved,
and you should call :meth:`.log_out()` when you're done.
Note that if you pass a string it will be a file in the current
working directory, although you can also pass absolute paths.
The session file contains enough information for you to login
without re-sending the code, so if you have to enter the code
more than once, maybe you're changing the working directory,
renaming or removing the file, or using random names.
api_id (`int` | `str`):
The API ID you obtained from https://my.telegram.org.
api_hash (`str`):
The API ID you obtained from https://my.telegram.org.
connection (`telethon.network.connection.common.Connection`, optional):
The connection instance to be used when creating a new connection
to the servers. If it's a type, the `proxy` argument will be used.
Defaults to `telethon.network.connection.tcpfull.ConnectionTcpFull`.
use_ipv6 (`bool`, optional):
Whether to connect to the servers through IPv6 or not.
By default this is ``False`` as IPv6 support is not
too widespread yet.
proxy (`tuple` | `dict`, optional):
A tuple consisting of ``(socks.SOCKS5, 'host', port)``.
See https://github.com/Anorov/PySocks#usage-1 for more.
update_workers (`int`, optional):
If specified, represents how many extra threads should
be spawned to handle incoming updates, and updates will
be kept in memory until they are processed. Note that
you must set this to at least ``0`` if you want to be
able to process updates through :meth:`updates.poll()`.
timeout (`int` | `float` | `timedelta`, optional):
The timeout to be used when receiving responses from
the network. Defaults to 5 seconds.
spawn_read_thread (`bool`, optional):
Whether to use an extra background thread or not. Defaults
to ``True`` so receiving items from the network happens
instantly, as soon as they arrive. Can still be disabled
if you want to run the library without any additional thread.
report_errors (`bool`, optional):
Whether to report RPC errors or not. Defaults to ``True``,
see :ref:`api-status` for more information.
Kwargs:
Some extra parameters are required when establishing the first
connection. These are are (along with their default values):
.. code-block:: python
device_model = platform.node()
system_version = platform.system()
app_version = TelegramClient.__version__
lang_code = 'en'
system_lang_code = lang_code
"""
# region Initialization
def __init__(self, session, api_id, api_hash,
*,
connection=ConnectionTcpFull,
use_ipv6=False,
proxy=None,
timeout=timedelta(seconds=10),
loop=None,
report_errors=True,
**kwargs):
super().__init__(
session, api_id, api_hash,
connection=connection,
use_ipv6=use_ipv6,
proxy=proxy,
timeout=timeout,
loop=loop,
report_errors=report_errors,
**kwargs
)
self._event_builders = []
self._events_pending_resolve = []
# Some fields to easy signing in. Let {phone: hash} be
# a dictionary because the user may change their mind.
self._phone_code_hash = {}
self._phone = None
# Sometimes we need to know who we are, cache the self peer
self._self_input_peer = None
# endregion
# region Telegram requests functions
# region Authorization requests
async def send_code_request(self, phone, force_sms=False):
"""
Sends a code request to the specified phone number.
Args:
phone (`str` | `int`):
The phone to which the code will be sent.
force_sms (`bool`, optional):
Whether to force sending as SMS.
Returns:
An instance of :tl:`SentCode`.
"""
phone = utils.parse_phone(phone) or self._phone
phone_hash = self._phone_code_hash.get(phone)
if not phone_hash:
result = await self(SendCodeRequest(phone, self.api_id, self.api_hash))
self._phone_code_hash[phone] = phone_hash = result.phone_code_hash
else:
force_sms = True
self._phone = phone
if force_sms:
result = await self(ResendCodeRequest(phone, phone_hash))
self._phone_code_hash[phone] = result.phone_code_hash
return result
async def start(self,
phone=lambda: input('Please enter your phone: '),
password=lambda: getpass.getpass(
'Please enter your password: '),
bot_token=None, force_sms=False, code_callback=None,
first_name='New User', last_name=''):
"""
Convenience method to interactively connect and sign in if required,
also taking into consideration that 2FA may be enabled in the account.
Example usage:
>>> import asyncio
>>> rc = asyncio.get_event_loop().run_until_complete
>>> client = rc(TelegramClient(session, api_id, api_hash).start(phone))
Please enter the code you received: 12345
Please enter your password: *******
(You are now logged in)
Args:
phone (`str` | `int` | `callable`):
The phone (or callable without arguments to get it)
to which the code will be sent.
password (`callable`, optional):
The password for 2 Factor Authentication (2FA).
This is only required if it is enabled in your account.
bot_token (`str`):
Bot Token obtained by `@BotFather <https://t.me/BotFather>`_
to log in as a bot. Cannot be specified with ``phone`` (only
one of either allowed).
force_sms (`bool`, optional):
Whether to force sending the code request as SMS.
This only makes sense when signing in with a `phone`.
code_callback (`callable`, optional):
A callable that will be used to retrieve the Telegram
login code. Defaults to `input()`.
first_name (`str`, optional):
The first name to be used if signing up. This has no
effect if the account already exists and you sign in.
last_name (`str`, optional):
Similar to the first name, but for the last. Optional.
Returns:
This `TelegramClient`, so initialization
can be chained with ``.start()``.
"""
if code_callback is None:
def code_callback():
return input('Please enter the code you received: ')
elif not callable(code_callback):
raise ValueError(
'The code_callback parameter needs to be a callable '
'function that returns the code you received by Telegram.'
)
if not phone and not bot_token:
raise ValueError('No phone number or bot token provided.')
if phone and bot_token and not callable(phone):
raise ValueError('Both a phone and a bot token provided, '
'must only provide one of either')
if not self.is_connected():
await self.connect()
if self.is_user_authorized():
await self._check_events_pending_resolve()
return self
if bot_token:
await self.sign_in(bot_token=bot_token)
return self
# Turn the callable into a valid phone number
while callable(phone):
phone = utils.parse_phone(phone()) or phone
me = None
attempts = 0
max_attempts = 3
two_step_detected = False
sent_code = await self.send_code_request(phone, force_sms=force_sms)
sign_up = not sent_code.phone_registered
while attempts < max_attempts:
try:
if sign_up:
me = await self.sign_up(code_callback(), first_name, last_name)
else:
# Raises SessionPasswordNeededError if 2FA enabled
me = await self.sign_in(phone, code_callback())
break
except SessionPasswordNeededError:
two_step_detected = True
break
except PhoneNumberOccupiedError:
sign_up = False
except PhoneNumberUnoccupiedError:
sign_up = True
except (PhoneCodeEmptyError, PhoneCodeExpiredError,
PhoneCodeHashEmptyError, PhoneCodeInvalidError):
print('Invalid code. Please try again.', file=sys.stderr)
attempts += 1
else:
raise RuntimeError(
'{} consecutive sign-in attempts failed. Aborting'
.format(max_attempts)
)
if two_step_detected:
if not password:
raise ValueError(
"Two-step verification is enabled for this account. "
"Please provide the 'password' argument to 'start()'."
)
# TODO If callable given make it retry on invalid
if callable(password):
password = password()
me = await self.sign_in(phone=phone, password=password)
# We won't reach here if any step failed (exit by exception)
signed, name = 'Signed in successfully as', utils.get_display_name(me)
try:
print(signed, name)
except UnicodeEncodeError:
# Some terminals don't support certain characters
print(signed, name.encode('utf-8', errors='ignore')
.decode('ascii', errors='ignore'))
await self._check_events_pending_resolve()
return self
async def sign_in(self, phone=None, code=None,
password=None, bot_token=None, phone_code_hash=None):
"""
Starts or completes the sign in process with the given phone number
or code that Telegram sent.
Args:
phone (`str` | `int`):
The phone to send the code to if no code was provided,
or to override the phone that was previously used with
these requests.
code (`str` | `int`):
The code that Telegram sent. Note that if you have sent this
code through the application itself it will immediately
expire. If you want to send the code, obfuscate it somehow.
If you're not doing any of this you can ignore this note.
password (`str`):
2FA password, should be used if a previous call raised
SessionPasswordNeededError.
bot_token (`str`):
Used to sign in as a bot. Not all requests will be available.
This should be the hash the @BotFather gave you.
phone_code_hash (`str`):
The hash returned by .send_code_request. This can be set to None
to use the last hash known.
Returns:
The signed in user, or the information about
:meth:`send_code_request`.
"""
if self.is_user_authorized():
await self._check_events_pending_resolve()
return self.get_me()
if phone and not code and not password:
return await self.send_code_request(phone)
elif code:
phone = utils.parse_phone(phone) or self._phone
phone_code_hash = \
phone_code_hash or self._phone_code_hash.get(phone, None)
if not phone:
raise ValueError(
'Please make sure to call send_code_request first.'
)
if not phone_code_hash:
raise ValueError('You also need to provide a phone_code_hash.')
# May raise PhoneCodeEmptyError, PhoneCodeExpiredError,
# PhoneCodeHashEmptyError or PhoneCodeInvalidError.
result = await self(SignInRequest(phone, phone_code_hash, str(code)))
elif password:
salt = (await self(GetPasswordRequest())).current_salt
result = await self(CheckPasswordRequest(
helpers.get_password_hash(password, salt)
))
elif bot_token:
result = await self(ImportBotAuthorizationRequest(
flags=0, bot_auth_token=bot_token,
api_id=self.api_id, api_hash=self.api_hash
))
else:
raise ValueError(
'You must provide a phone and a code the first time, '
'and a password only if an RPCError was raised before.'
)
self._self_input_peer = utils.get_input_peer(
result.user, allow_self=False
)
await self._set_connected_and_authorized()
return result.user
async def sign_up(self, code, first_name, last_name=''):
"""
Signs up to Telegram if you don't have an account yet.
You must call .send_code_request(phone) first.
Args:
code (`str` | `int`):
The code sent by Telegram
first_name (`str`):
The first name to be used by the new account.
last_name (`str`, optional)
Optional last name.
Returns:
The new created :tl:`User`.
"""
if self.is_user_authorized():
await self._check_events_pending_resolve()
return await self.get_me()
result = await self(SignUpRequest(
phone_number=self._phone,
phone_code_hash=self._phone_code_hash.get(self._phone, ''),
phone_code=str(code),
first_name=first_name,
last_name=last_name
))
self._self_input_peer = utils.get_input_peer(
result.user, allow_self=False
)
await self._set_connected_and_authorized()
return result.user
async def log_out(self):
"""
Logs out Telegram and deletes the current ``*.session`` file.
Returns:
``True`` if the operation was successful.
"""
try:
await self(LogOutRequest())
except RPCError:
return False
self.disconnect()
await self.session.delete()
self._authorized = False
return True
async def get_me(self, input_peer=False):
"""
Gets "me" (the self user) which is currently authenticated,
or None if the request fails (hence, not authenticated).
Args:
input_peer (`bool`, optional):
Whether to return the :tl:`InputPeerUser` version or the normal
:tl:`User`. This can be useful if you just need to know the ID
of yourself.
Returns:
Your own :tl:`User`.
"""
if input_peer and self._self_input_peer:
return self._self_input_peer
try:
me = (await self(GetUsersRequest([InputUserSelf()])))[0]
if not self._self_input_peer:
self._self_input_peer = utils.get_input_peer(
me, allow_self=False
)
return self._self_input_peer if input_peer else me
except UnauthorizedError:
return None
# endregion
# region Dialogs ("chats") requests
@async_generator
async def iter_dialogs(self, limit=None, offset_date=None, offset_id=0,
offset_peer=InputPeerEmpty(), _total=None):
"""
Returns an iterator over the dialogs, yielding 'limit' at most.
Dialogs are the open "chats" or conversations with other people,
groups you have joined, or channels you are subscribed to.
Args:
limit (`int` | `None`):
How many dialogs to be retrieved as maximum. Can be set to
``None`` to retrieve all dialogs. Note that this may take
whole minutes if you have hundreds of dialogs, as Telegram
will tell the library to slow down through a
``FloodWaitError``.
offset_date (`datetime`, optional):
The offset date to be used.
offset_id (`int`, optional):
The message ID to be used as an offset.
offset_peer (:tl:`InputPeer`, optional):
The peer to be used as an offset.
_total (`list`, optional):
A single-item list to pass the total parameter by reference.
Yields:
Instances of `telethon.tl.custom.dialog.Dialog`.
"""
limit = float('inf') if limit is None else int(limit)
if limit == 0:
if not _total:
return
# Special case, get a single dialog and determine count
dialogs = await self(GetDialogsRequest(
offset_date=offset_date,
offset_id=offset_id,
offset_peer=offset_peer,
limit=1
))
_total[0] = getattr(dialogs, 'count', len(dialogs.dialogs))
return
seen = set()
req = GetDialogsRequest(
offset_date=offset_date,
offset_id=offset_id,
offset_peer=offset_peer,
limit=0
)
while len(seen) < limit:
req.limit = min(limit - len(seen), 100)
r = await self(req)
if _total:
_total[0] = getattr(r, 'count', len(r.dialogs))
messages = {m.id: m for m in r.messages}
entities = {utils.get_peer_id(x): x
for x in itertools.chain(r.users, r.chats)}
# Happens when there are pinned dialogs
if len(r.dialogs) > limit:
r.dialogs = r.dialogs[:limit]
for d in r.dialogs:
peer_id = utils.get_peer_id(d.peer)
if peer_id not in seen:
seen.add(peer_id)
await yield_(Dialog(self, d, entities, messages))
if len(r.dialogs) < req.limit or not isinstance(r, DialogsSlice):
# Less than we requested means we reached the end, or
# we didn't get a DialogsSlice which means we got all.
break
req.offset_date = r.messages[-1].date
req.offset_peer = entities[utils.get_peer_id(r.dialogs[-1].peer)]
req.offset_id = r.messages[-1].id
req.exclude_pinned = True
async def get_dialogs(self, *args, **kwargs):
"""
Same as :meth:`iter_dialogs`, but returns a list instead
with an additional ``.total`` attribute on the list.
"""
total = [0]
kwargs['_total'] = total
dialogs = UserList()
async for dialog in self.iter_dialogs(*args, **kwargs):
dialogs.append(dialog)
dialogs.total = total[0]
return dialogs
@async_generator
async def iter_drafts(self): # TODO: Ability to provide a `filter`
"""
Iterator over all open draft messages.
Instances of `telethon.tl.custom.draft.Draft` are yielded.
You can call `telethon.tl.custom.draft.Draft.set_message`
to change the message or `telethon.tl.custom.draft.Draft.delete`
among other things.
"""
for update in (await self(GetAllDraftsRequest())).updates:
await yield_(Draft._from_update(self, update))
async def get_drafts(self):
"""
Same as :meth:`iter_drafts`, but returns a list instead.
"""
return list(await self.iter_drafts())
@staticmethod
def _get_response_message(request, result):
"""
Extracts the response message known a request and Update result.
The request may also be the ID of the message to match.
"""
# Telegram seems to send updateMessageID first, then updateNewMessage,
# however let's not rely on that just in case.
if isinstance(request, int):
msg_id = request
else:
msg_id = None
for update in result.updates:
if isinstance(update, UpdateMessageID):
if update.random_id == request.random_id:
msg_id = update.id
break
if isinstance(result, UpdateShort):
updates = [result.update]
elif isinstance(result, Updates):
updates = result.updates
else:
return
for update in updates:
if isinstance(update, (UpdateNewChannelMessage, UpdateNewMessage)):
if update.message.id == msg_id:
return update.message
elif (isinstance(update, UpdateEditMessage) and
not isinstance(request.peer, InputPeerChannel)):
if request.id == update.message.id:
return update.message
elif (isinstance(update, UpdateEditChannelMessage) and
utils.get_peer_id(request.peer) ==
utils.get_peer_id(update.message.to_id)):
if request.id == update.message.id:
return update.message
async def _parse_message_text(self, message, parse_mode):
"""
Returns a (parsed message, entities) tuple depending on ``parse_mode``.
"""
if not parse_mode:
return message, []
if isinstance(parse_mode, str):
parse_mode = parse_mode.lower()
if parse_mode in {'md', 'markdown'}:
message, msg_entities = markdown.parse(message)
elif parse_mode.startswith('htm'):
message, msg_entities = html.parse(message)
else:
raise ValueError('Unknown parsing mode: {}'.format(parse_mode))
elif callable(parse_mode):
message, msg_entities = parse_mode(message)
else:
raise TypeError('Invalid parsing mode type: {}'.format(parse_mode))
for i, e in enumerate(msg_entities):
if isinstance(e, MessageEntityTextUrl):
m = re.match(r'^@|\+|tg://user\?id=(\d+)', e.url)
if m:
try:
msg_entities[i] = InputMessageEntityMentionName(
e.offset, e.length, await self.get_input_entity(
int(m.group(1)) if m.group(1) else e.url
)
)
except (ValueError, TypeError):
# Make no replacement
pass
return message, msg_entities
async def send_message(self, entity, message='', reply_to=None,
parse_mode='md', link_preview=True, file=None,
force_document=False, clear_draft=False):
"""
Sends the given message to the specified entity (user/chat/channel).
The default parse mode is the same as the official applications
(a custom flavour of markdown). ``**bold**, `code` or __italic__``
are available. In addition you can send ``[links](https://example.com)``
and ``[mentions](@username)`` (or using IDs like in the Bot API:
``[mention](tg://user?id=123456789)``) and ``pre`` blocks with three
backticks.
Sending a ``/start`` command with a parameter (like ``?start=data``)
is also done through this method. Simply send ``'/start data'`` to
the bot.
Args:
entity (`entity`):
To who will it be sent.
message (`str` | :tl:`Message`):
The message to be sent, or another message object to resend.
The maximum length for a message is 35,000 bytes or 4,096
characters. Longer messages will not be sliced automatically,
and you should slice them manually if the text to send is
longer than said length.
reply_to (`int` | :tl:`Message`, optional):
Whether to reply to a message or not. If an integer is provided,
it should be the ID of the message that it should reply to.
parse_mode (`str`, optional):
Can be 'md' or 'markdown' for markdown-like parsing (default),
or 'htm' or 'html' for HTML-like parsing. If ``None`` or any
other false-y value is provided, the message will be sent with
no formatting.
If a ``callable`` is passed, it should be a function accepting
a `str` as an input and return as output a tuple consisting
of ``(parsed message str, [MessageEntity instances])``.
See :tl:`MessageEntity` for allowed message entities.
link_preview (`bool`, optional):
Should the link preview be shown?
file (`file`, optional):
Sends a message with a file attached (e.g. a photo,
video, audio or document). The ``message`` may be empty.
force_document (`bool`, optional):
Whether to send the given file as a document or not.
clear_draft (`bool`, optional):
Whether the existing draft should be cleared or not.
Has no effect when sending a file.
Returns:
The sent :tl:`Message`.
"""
if file is not None:
return await self.send_file(
entity, file, caption=message, reply_to=reply_to,
parse_mode=parse_mode, force_document=force_document
)
elif not message:
raise ValueError(
'The message cannot be empty unless a file is provided'
)
entity = await self.get_input_entity(entity)
if isinstance(message, Message):
if (message.media
and not isinstance(message.media, MessageMediaWebPage)):
return await self.send_file(entity, message.media,
caption=message.message,
entities=message.entities)
if reply_to is not None:
reply_id = self._get_message_id(reply_to)
elif utils.get_peer_id(entity) == utils.get_peer_id(message.to_id):
reply_id = message.reply_to_msg_id
else:
reply_id = None
request = SendMessageRequest(
peer=entity,
message=message.message or '',
silent=message.silent,
reply_to_msg_id=reply_id,
reply_markup=message.reply_markup,
entities=message.entities,
no_webpage=not isinstance(message.media, MessageMediaWebPage),
clear_draft=clear_draft
)
message = message.message
else:
message, msg_ent =\
await self._parse_message_text(message, parse_mode)
request = SendMessageRequest(
peer=entity,
message=message,
entities=msg_ent,
no_webpage=not link_preview,
reply_to_msg_id=self._get_message_id(reply_to),
clear_draft=clear_draft
)
result = await self(request)
if isinstance(result, UpdateShortSentMessage):
return Message(
id=result.id,
to_id=entity,
message=message,
date=result.date,
out=result.out,
media=result.media,
entities=result.entities
)
return self._get_response_message(request, result)
async def forward_messages(self, entity, messages, from_peer=None):
"""
Forwards the given message(s) to the specified entity.
Args:
entity (`entity`):
To which entity the message(s) will be forwarded.
messages (`list` | `int` | :tl:`Message`):
The message(s) to forward, or their integer IDs.
from_peer (`entity`):
If the given messages are integer IDs and not instances
of the ``Message`` class, this *must* be specified in
order for the forward to work.
Returns:
The list of forwarded :tl:`Message`, or a single one if a list
wasn't provided as input.
"""
single = not utils.is_list_like(messages)
if single:
messages = (messages,)
if not from_peer:
try:
# On private chats (to_id = PeerUser), if the message is
# not outgoing, we actually need to use "from_id" to get
# the conversation on which the message was sent.
from_peer = next(
m.from_id if not m.out and isinstance(m.to_id, PeerUser)
else m.to_id for m in messages if isinstance(m, Message)
)
except StopIteration:
raise ValueError(
'from_chat must be given if integer IDs are used'
)
req = ForwardMessagesRequest(
from_peer=from_peer,
id=[m if isinstance(m, int) else m.id for m in messages],
to_peer=entity
)
result = await self(req)
random_to_id = {}
id_to_message = {}
for update in result.updates:
if isinstance(update, UpdateMessageID):
random_to_id[update.random_id] = update.id
elif isinstance(update, (UpdateNewMessage, UpdateNewChannelMessage)):
id_to_message[update.message.id] = update.message
result = [id_to_message[random_to_id[rnd]] for rnd in req.random_id]
return result[0] if single else result
async def edit_message(self, entity, message=None, text=None,
parse_mode='md', link_preview=True):
"""
Edits the given message ID (to change its contents or disable preview).
Args:
entity (`entity` | :tl:`Message`):
From which chat to edit the message. This can also be
the message to be edited, and the entity will be inferred
from it, so the next parameter will be assumed to be the
message text.
message (`int` | :tl:`Message` | `str`):
The ID of the message (or :tl:`Message` itself) to be edited.
If the `entity` was a :tl:`Message`, then this message will be
treated as the new text.
text (`str`, optional):
The new text of the message. Does nothing if the `entity`
was a :tl:`Message`.
parse_mode (`str`, optional):
Can be 'md' or 'markdown' for markdown-like parsing (default),
or 'htm' or 'html' for HTML-like parsing. If ``None`` or any
other false-y value is provided, the message will be sent with
no formatting.
link_preview (`bool`, optional):
Should the link preview be shown?
Examples:
>>> import asyncio
>>> async def main():
... client = await TelegramClient(...).start()
... message = await client.send_message('username', 'hello')
...
... await client.edit_message('username', message, 'hello!')
... # or
... await client.edit_message('username', message.id, 'Hello')
... # or
... await client.edit_message(message, 'Hello!')
...
>>> loop = asyncio.get_event_loop()
>>> loop.run_until_complete(main())
Raises:
``MessageAuthorRequiredError`` if you're not the author of the
message but tried editing it anyway.
``MessageNotModifiedError`` if the contents of the message were
not modified at all.
Returns:
The edited :tl:`Message`.
"""
if isinstance(entity, Message):
text = message # Shift the parameters to the right
message = entity
entity = entity.to_id
text, msg_entities = await self._parse_message_text(text, parse_mode)
request = EditMessageRequest(
peer=await self.get_input_entity(entity),
id=self._get_message_id(message),
message=text,
no_webpage=not link_preview,
entities=msg_entities
)
result = await self(request)
return self._get_response_message(request, result)
async def delete_messages(self, entity, message_ids, revoke=True):
"""
Deletes a message from a chat, optionally "for everyone".
Args:
entity (`entity`):
From who the message will be deleted. This can actually
be ``None`` for normal chats, but **must** be present
for channels and megagroups.
message_ids (`list` | `int` | :tl:`Message`):
The IDs (or ID) or messages to be deleted.
revoke (`bool`, optional):
Whether the message should be deleted for everyone or not.
By default it has the opposite behaviour of official clients,
and it will delete the message for everyone.
This has no effect on channels or megagroups.
Returns:
The :tl:`AffectedMessages`.
"""
if not utils.is_list_like(message_ids):
message_ids = (message_ids,)
message_ids = [
m.id if isinstance(m, (Message, MessageService, MessageEmpty))
else int(m) for m in message_ids
]
if entity is None:
return await self(messages.DeleteMessagesRequest(message_ids, revoke=revoke))
entity = await self.get_input_entity(entity)
if isinstance(entity, InputPeerChannel):
return await self(channels.DeleteMessagesRequest(entity, message_ids))
else:
return await self(messages.DeleteMessagesRequest(message_ids, revoke=revoke))
@async_generator
async def iter_messages(self, entity, limit=20, offset_date=None,
offset_id=0, max_id=0, min_id=0, add_offset=0,
search=None, filter=None, from_user=None,
batch_size=100, wait_time=None, ids=None,
_total=None):
"""
Iterator over the message history for the specified entity.
If either `search`, `filter` or `from_user` are provided,
:tl:`messages.Search` will be used instead of :tl:`messages.getHistory`.
Args:
entity (`entity`):
The entity from whom to retrieve the message history.
limit (`int` | `None`, optional):
Number of messages to be retrieved. Due to limitations with
the API retrieving more than 3000 messages will take longer
than half a minute (or even more based on previous calls).
The limit may also be ``None``, which would eventually return
the whole history.
offset_date (`datetime`):
Offset date (messages *previous* to this date will be
retrieved). Exclusive.
offset_id (`int`):
Offset message ID (only messages *previous* to the given
ID will be retrieved). Exclusive.
max_id (`int`):
All the messages with a higher (newer) ID or equal to this will
be excluded.
min_id (`int`):
All the messages with a lower (older) ID or equal to this will
be excluded.
add_offset (`int`):
Additional message offset (all of the specified offsets +
this offset = older messages).
search (`str`):
The string to be used as a search query.
filter (:tl:`MessagesFilter` | `type`):
The filter to use when returning messages. For instance,
:tl:`InputMessagesFilterPhotos` would yield only messages
containing photos.
from_user (`entity`):
Only messages from this user will be returned.
batch_size (`int`):
Messages will be returned in chunks of this size (100 is
the maximum). While it makes no sense to modify this value,
you are still free to do so.
wait_time (`int`):
Wait time between different :tl:`GetHistoryRequest`. Use this
parameter to avoid hitting the ``FloodWaitError`` as needed.
If left to ``None``, it will default to 1 second only if
the limit is higher than 3000.
ids (`int`, `list`):
A single integer ID (or several IDs) for the message that
should be returned. This parameter takes precedence over
the rest (which will be ignored if this is set). This can
for instance be used to get the message with ID 123 from
a channel. Note that if the message doesn't exist, ``None``
will appear in its place, so that zipping the list of IDs
with the messages can match one-to-one.
_total (`list`, optional):
A single-item list to pass the total parameter by reference.
Yields:
Instances of :tl:`Message` with extra attributes:
* ``.sender`` = entity of the sender.
* ``.fwd_from.sender`` = if fwd_from, who sent it originally.
* ``.fwd_from.channel`` = if fwd_from, original channel.
* ``.to`` = entity to which the message was sent.
Notes:
Telegram's flood wait limit for :tl:`GetHistoryRequest` seems to
be around 30 seconds per 3000 messages, therefore a sleep of 1
second is the default for this limit (or above). You may need
an higher limit, so you're free to set the ``batch_size`` that
you think may be good.
"""
entity = await self.get_input_entity(entity)
if ids:
if not utils.is_list_like(ids):
ids = (ids,)
async for x in self._iter_ids(entity, ids, total=_total):
await yield_(x)
return
# Telegram doesn't like min_id/max_id. If these IDs are low enough
# (starting from last_id - 100), the request will return nothing.
#
# We can emulate their behaviour locally by setting offset = max_id
# and simply stopping once we hit a message with ID <= min_id.
offset_id = max(offset_id, max_id)
if offset_id and min_id:
if offset_id - min_id <= 1:
return
limit = float('inf') if limit is None else int(limit)
if search is not None or filter or from_user:
if filter is None:
filter = InputMessagesFilterEmpty()
request = SearchRequest(
peer=entity,
q=search or '',
filter=filter() if isinstance(filter, type) else filter,
min_date=None,
max_date=offset_date,
offset_id=offset_id,
add_offset=add_offset,
limit=1,
max_id=0,
min_id=0,
hash=0,
from_id=self.get_input_entity(from_user) if from_user else None
)
else:
request = GetHistoryRequest(
peer=entity,
limit=1,
offset_date=offset_date,
offset_id=offset_id,
min_id=0,
max_id=0,
add_offset=add_offset,
hash=0
)
if limit == 0:
if not _total:
return
# No messages, but we still need to know the total message count
result = await self(request)
_total[0] = getattr(result, 'count', len(result.messages))
return
if wait_time is None:
wait_time = 1 if limit > 3000 else 0
have = 0
last_id = float('inf')
batch_size = min(max(batch_size, 1), 100)
while have < limit:
start = time.time()
# Telegram has a hard limit of 100
request.limit = min(limit - have, batch_size)
r = await self(request)
if _total:
_total[0] = getattr(r, 'count', len(r.messages))
entities = {utils.get_peer_id(x): x
for x in itertools.chain(r.users, r.chats)}
for message in r.messages:
if message.id <= min_id:
return
if isinstance(message, MessageEmpty) or message.id >= last_id:
continue
# There has been reports that on bad connections this method
# was returning duplicated IDs sometimes. Using ``last_id``
# is an attempt to avoid these duplicates, since the message
# IDs are returned in descending order.
last_id = message.id
self._make_message_friendly(message, entities)
await yield_(message)
have += 1
if len(r.messages) < request.limit:
break
request.offset_id = r.messages[-1].id
if isinstance(request, GetHistoryRequest):
request.offset_date = r.messages[-1].date
else:
request.max_date = r.messages[-1].date
await asyncio.sleep(max(wait_time - (time.time() - start), 0))
@staticmethod
def _make_message_friendly(message, entities):
"""
Add a few extra attributes to the :tl:`Message` to be friendlier.
To make messages more friendly, always add message
to service messages, and action to normal messages.
"""
# TODO Create an actual friendlier class
message.message = getattr(message, 'message', None)
message.action = getattr(message, 'action', None)
message.to = entities[utils.get_peer_id(message.to_id)]
message.sender = (
None if not message.from_id else
entities[utils.get_peer_id(message.from_id)]
)
if getattr(message, 'fwd_from', None):
message.fwd_from.sender = (
None if not message.fwd_from.from_id else
entities[utils.get_peer_id(message.fwd_from.from_id)]
)
message.fwd_from.channel = (
None if not message.fwd_from.channel_id else
entities[utils.get_peer_id(
PeerChannel(message.fwd_from.channel_id)
)]
)
@async_generator
async def _iter_ids(self, entity, ids, total):
"""
Special case for `iter_messages` when it should only fetch some IDs.
"""
if total:
total[0] = len(ids)
if isinstance(entity, InputPeerChannel):
r = await self(channels.GetMessagesRequest(entity, ids))
else:
r = await self(messages.GetMessagesRequest(ids))
entities = {utils.get_peer_id(x): x
for x in itertools.chain(r.users, r.chats)}
# Telegram seems to return the messages in the order in which
# we asked them for, so we don't need to check it ourselves.
for message in r.messages:
if isinstance(message, MessageEmpty):
await yield_(None)
else:
self._make_message_friendly(message, entities)
await yield_(message)
async def get_messages(self, *args, **kwargs):
"""
Same as :meth:`iter_messages`, but returns a list instead
with an additional ``.total`` attribute on the list.
If the `limit` is not set, it will be 1 by default unless both
`min_id` **and** `max_id` are set (as *named* arguments), in
which case the entire range will be returned.
This is so because any integer limit would be rather arbitrary and
it's common to only want to fetch one message, but if a range is
specified it makes sense that it should return the entirety of it.
If `ids` is present in the *named* arguments and is not a list,
a single :tl:`Message` will be returned for convenience instead
of a list.
"""
total = [0]
kwargs['_total'] = total
if len(args) == 1 and 'limit' not in kwargs:
if 'min_id' in kwargs and 'max_id' in kwargs:
kwargs['limit'] = None
else:
kwargs['limit'] = 1
msgs = UserList()
async for msg in self.iter_messages(*args, **kwargs):
msgs.append(msg)
msgs.total = total[0]
if 'ids' in kwargs and not utils.is_list_like(kwargs['ids']):
return msgs[0]
return msgs
async def get_message_history(self, *args, **kwargs):
"""Deprecated, see :meth:`get_messages`."""
warnings.warn(
'get_message_history is deprecated, use get_messages instead'
)
return await self.get_messages(*args, **kwargs)
async def send_read_acknowledge(self, entity, message=None, max_id=None,
clear_mentions=False):
"""
Sends a "read acknowledge" (i.e., notifying the given peer that we've
read their messages, also known as the "double check").
This effectively marks a message as read (or more than one) in the
given conversation.
Args:
entity (`entity`):
The chat where these messages are located.
message (`list` | :tl:`Message`):
Either a list of messages or a single message.
max_id (`int`):
Overrides messages, until which message should the
acknowledge should be sent.
clear_mentions (`bool`):
Whether the mention badge should be cleared (so that
there are no more mentions) or not for the given entity.
If no message is provided, this will be the only action
taken.
"""
if max_id is None:
if message:
if utils.is_list_like(message):
max_id = max(msg.id for msg in message)
else:
max_id = message.id
elif not clear_mentions:
raise ValueError(
'Either a message list or a max_id must be provided.')
entity = await self.get_input_entity(entity)
if clear_mentions:
await self(ReadMentionsRequest(entity))
if max_id is None:
return True
if max_id is not None:
if isinstance(entity, InputPeerChannel):
return await self(channels.ReadHistoryRequest(entity, max_id=max_id))
else:
return await self(messages.ReadHistoryRequest(entity, max_id=max_id))
return False
@staticmethod
def _get_message_id(message):
"""Sanitizes the 'reply_to' parameter a user may send"""
if message is None:
return None
if isinstance(message, int):
return message
try:
if message.SUBCLASS_OF_ID == 0x790009e3:
# hex(crc32(b'Message')) = 0x790009e3
return message.id
except AttributeError:
pass
raise TypeError('Invalid message type: {}'.format(type(message)))
@async_generator
async def iter_participants(self, entity, limit=None, search='',
filter=None, aggressive=False, _total=None):
"""
Iterator over the participants belonging to the specified chat.
Args:
entity (`entity`):
The entity from which to retrieve the participants list.
limit (`int`):
Limits amount of participants fetched.
search (`str`, optional):
Look for participants with this string in name/username.
filter (:tl:`ChannelParticipantsFilter`, optional):
The filter to be used, if you want e.g. only admins
Note that you might not have permissions for some filter.
This has no effect for normal chats or users.
aggressive (`bool`, optional):
Aggressively looks for all participants in the chat in
order to get more than 10,000 members (a hard limit
imposed by Telegram). Note that this might take a long
time (over 5 minutes), but is able to return over 90,000
participants on groups with 100,000 members.
This has no effect for groups or channels with less than
10,000 members, or if a ``filter`` is given.
_total (`list`, optional):
A single-item list to pass the total parameter by reference.
Yields:
The :tl:`User` objects returned by :tl:`GetParticipantsRequest`
with an additional ``.participant`` attribute which is the
matched :tl:`ChannelParticipant` type for channels/megagroups
or :tl:`ChatParticipants` for normal chats.
"""
if isinstance(filter, type):
if filter in (ChannelParticipantsBanned, ChannelParticipantsKicked,
ChannelParticipantsSearch):
# These require a `q` parameter (support types for convenience)
filter = filter('')
else:
filter = filter()
entity = await self.get_input_entity(entity)
if search and (filter or not isinstance(entity, InputPeerChannel)):
# We need to 'search' ourselves unless we have a PeerChannel
search = search.lower()
def filter_entity(ent):
return search in utils.get_display_name(ent).lower() or\
search in (getattr(ent, 'username', '') or None).lower()
else:
def filter_entity(ent):
return True
limit = float('inf') if limit is None else int(limit)
if isinstance(entity, InputPeerChannel):
if _total or (aggressive and not filter):
total = (await self(GetFullChannelRequest(
entity
))).full_chat.participants_count
if _total:
_total[0] = total
else:
total = 0
if limit == 0:
return
seen = set()
if total > 10000 and aggressive and not filter:
requests = [GetParticipantsRequest(
channel=entity,
filter=ChannelParticipantsSearch(search + chr(x)),
offset=0,
limit=200,
hash=0
) for x in range(ord('a'), ord('z') + 1)]
else:
requests = [GetParticipantsRequest(
channel=entity,
filter=filter or ChannelParticipantsSearch(search),
offset=0,
limit=200,
hash=0
)]
while requests:
# Only care about the limit for the first request
# (small amount of people, won't be aggressive).
#
# Most people won't care about getting exactly 12,345
# members so it doesn't really matter not to be 100%
# precise with being out of the offset/limit here.
requests[0].limit = min(limit - requests[0].offset, 200)
if requests[0].offset > limit:
break
results = await self(requests)
for i in reversed(range(len(requests))):
participants = results[i]
if not participants.users:
requests.pop(i)
else:
requests[i].offset += len(participants.participants)
users = {user.id: user for user in participants.users}
for participant in participants.participants:
user = users[participant.user_id]
if not filter_entity(user) or user.id in seen:
continue
seen.add(participant.user_id)
user = users[participant.user_id]
user.participant = participant
await yield_(user)
if len(seen) >= limit:
return
elif isinstance(entity, InputPeerChat):
# TODO We *could* apply the `filter` here ourselves
full = await self(GetFullChatRequest(entity.chat_id))
if not isinstance(full.full_chat.participants, ChatParticipants):
# ChatParticipantsForbidden won't have ``.participants``
_total[0] = 0
return
if _total:
_total[0] = len(full.full_chat.participants.participants)
have = 0
users = {user.id: user for user in full.users}
for participant in full.full_chat.participants.participants:
user = users[participant.user_id]
if not filter_entity(user):
continue
have += 1
if have > limit:
break
else:
user = users[participant.user_id]
user.participant = participant
await yield_(user)
else:
if _total:
_total[0] = 1
if limit != 0:
user = await self.get_entity(entity)
if filter_entity(user):
user.participant = None
await yield_(user)
async def get_participants(self, *args, **kwargs):
"""
Same as :meth:`iter_participants`, but returns a list instead
with an additional ``.total`` attribute on the list.
"""
total = [0]
kwargs['_total'] = total
participants = UserList()
async for participant in self.iter_participants(*args, **kwargs):
participants.append(participant)
participants.total = total[0]
return participants
# endregion
# region Uploading files
async def send_file(self, entity, file, caption='',
force_document=False, progress_callback=None,
reply_to=None,
attributes=None,
thumb=None,
allow_cache=True,
parse_mode='md',
voice_note=False,
video_note=False,
**kwargs):
"""
Sends a file to the specified entity.
Args:
entity (`entity`):
Who will receive the file.
file (`str` | `bytes` | `file` | `media`):
The path of the file, byte array, or stream that will be sent.
Note that if a byte array or a stream is given, a filename
or its type won't be inferred, and it will be sent as an
"unnamed application/octet-stream".
Furthermore the file may be any media (a message, document,
photo or similar) so that it can be resent without the need
to download and re-upload it again.
If a list or similar is provided, the files in it will be
sent as an album in the order in which they appear, sliced
in chunks of 10 if more than 10 are given.
caption (`str`, optional):
Optional caption for the sent media message.
force_document (`bool`, optional):
If left to ``False`` and the file is a path that ends with
the extension of an image file or a video file, it will be
sent as such. Otherwise always as a document.
progress_callback (`callable`, optional):
A callback function accepting two parameters:
``(sent bytes, total)``.
reply_to (`int` | :tl:`Message`):
Same as `reply_to` from `send_message`.
attributes (`list`, optional):
Optional attributes that override the inferred ones, like
:tl:`DocumentAttributeFilename` and so on.
thumb (`str` | `bytes` | `file`, optional):
Optional thumbnail (for videos).
allow_cache (`bool`, optional):
Whether to allow using the cached version stored in the
database or not. Defaults to ``True`` to avoid re-uploads.
Must be ``False`` if you wish to use different attributes
or thumb than those that were used when the file was cached.
parse_mode (`str`, optional):
The parse mode for the caption message.
voice_note (`bool`, optional):
If ``True`` the audio will be sent as a voice note.
Set `allow_cache` to ``False`` if you sent the same file
without this setting before for it to work.
video_note (`bool`, optional):
If ``True`` the video will be sent as a video note,
also known as a round video message.
Set `allow_cache` to ``False`` if you sent the same file
without this setting before for it to work.
Notes:
If the ``hachoir3`` package (``hachoir`` module) is installed,
it will be used to determine metadata from audio and video files.
Returns:
The :tl:`Message` (or messages) containing the sent file,
or messages if a list of them was passed.
"""
# First check if the user passed an iterable, in which case
# we may want to send as an album if all are photo files.
if utils.is_list_like(file):
# TODO Fix progress_callback
images = []
if force_document:
documents = file
else:
documents = []
for x in file:
if utils.is_image(x):
images.append(x)
else:
documents.append(x)
result = []
while images:
result += await self._send_album(
entity, images[:10], caption=caption,
progress_callback=progress_callback, reply_to=reply_to,
parse_mode=parse_mode
)
images = images[10:]
for x in documents:
result.append(await self.send_file(
entity, x, allow_cache=allow_cache,
caption=caption, force_document=force_document,
progress_callback=progress_callback, reply_to=reply_to,
attributes=attributes, thumb=thumb, voice_note=voice_note,
video_note=video_note, **kwargs
))
return result
entity = await self.get_input_entity(entity)
reply_to = self._get_message_id(reply_to)
# Not document since it's subject to change.
# Needed when a Message is passed to send_message and it has media.
if 'entities' in kwargs:
msg_entities = kwargs['entities']
else:
caption, msg_entities =\
await self._parse_message_text(caption, parse_mode)
if not isinstance(file, (str, bytes, io.IOBase)):
# The user may pass a Message containing media (or the media,
# or anything similar) that should be treated as a file. Try
# getting the input media for whatever they passed and send it.
try:
media = utils.get_input_media(file)
except TypeError:
pass # Can't turn whatever was given into media
else:
request = SendMediaRequest(entity, media,
reply_to_msg_id=reply_to,
message=caption,
entities=msg_entities)
return self._get_response_message(request, await self(request))
as_image = utils.is_image(file) and not force_document
use_cache = InputPhoto if as_image else InputDocument
file_handle = await self.upload_file(
file, progress_callback=progress_callback,
use_cache=use_cache if allow_cache else None
)
if isinstance(file_handle, use_cache):
# File was cached, so an instance of use_cache was returned
if as_image:
media = InputMediaPhoto(file_handle)
else:
media = InputMediaDocument(file_handle)
elif as_image:
media = InputMediaUploadedPhoto(file_handle)
else:
mime_type = None
if isinstance(file, str):
# Determine mime-type and attributes
# Take the first element by using [0] since it returns a tuple
mime_type = guess_type(file)[0]
attr_dict = {
DocumentAttributeFilename:
DocumentAttributeFilename(os.path.basename(file))
}
if utils.is_audio(file) and hachoir:
m = hachoir.metadata.extractMetadata(
hachoir.parser.createParser(file)
)
attr_dict[DocumentAttributeAudio] = DocumentAttributeAudio(
voice=voice_note,
title=m.get('title') if m.has('title') else None,
performer=m.get('author') if m.has('author') else None,
duration=int(m.get('duration').seconds
if m.has('duration') else 0)
)
if not force_document and utils.is_video(file):
if hachoir:
m = hachoir.metadata.extractMetadata(
hachoir.parser.createParser(file)
)
doc = DocumentAttributeVideo(
round_message=video_note,
w=m.get('width') if m.has('width') else 0,
h=m.get('height') if m.has('height') else 0,
duration=int(m.get('duration').seconds
if m.has('duration') else 0)
)
else:
doc = DocumentAttributeVideo(0, 1, 1,
round_message=video_note)
attr_dict[DocumentAttributeVideo] = doc
else:
attr_dict = {
DocumentAttributeFilename: DocumentAttributeFilename(
os.path.basename(
getattr(file, 'name', None) or 'unnamed'))
}
if voice_note:
if DocumentAttributeAudio in attr_dict:
attr_dict[DocumentAttributeAudio].voice = True
else:
attr_dict[DocumentAttributeAudio] = \
DocumentAttributeAudio(0, voice=True)
# Now override the attributes if any. As we have a dict of
# {cls: instance}, we can override any class with the list
# of attributes provided by the user easily.
if attributes:
for a in attributes:
attr_dict[type(a)] = a
# Ensure we have a mime type, any; but it cannot be None
# 'The "octet-stream" subtype is used to indicate that a body
# contains arbitrary binary data.'
if not mime_type:
mime_type = 'application/octet-stream'
input_kw = {}
if thumb:
input_kw['thumb'] = await self.upload_file(thumb)
media = InputMediaUploadedDocument(
file=file_handle,
mime_type=mime_type,
attributes=list(attr_dict.values()),
**input_kw
)
# Once the media type is properly specified and the file uploaded,
# send the media message to the desired entity.
request = SendMediaRequest(entity, media, reply_to_msg_id=reply_to,
message=caption, entities=msg_entities)
msg = self._get_response_message(request, await self(request))
if msg and isinstance(file_handle, InputSizedFile):
# There was a response message and we didn't use cached
# version, so cache whatever we just sent to the database.
md5, size = file_handle.md5, file_handle.size
if as_image:
to_cache = utils.get_input_photo(msg.media.photo)
else:
to_cache = utils.get_input_document(msg.media.document)
await self.session.cache_file(md5, size, to_cache)
return msg
def send_voice_note(self, *args, **kwargs):
"""Deprecated, see :meth:`send_file`."""
warnings.warn('send_voice_note is deprecated, use '
'send_file(..., voice_note=True) instead')
kwargs['is_voice_note'] = True
return self.send_file(*args, **kwargs)
async def _send_album(self, entity, files, caption='',
progress_callback=None, reply_to=None,
parse_mode='md'):
"""Specialized version of .send_file for albums"""
# We don't care if the user wants to avoid cache, we will use it
# anyway. Why? The cached version will be exactly the same thing
# we need to produce right now to send albums (uploadMedia), and
# cache only makes a difference for documents where the user may
# want the attributes used on them to change.
#
# In theory documents can be sent inside the albums but they appear
# as different messages (not inside the album), and the logic to set
# the attributes/avoid cache is already written in .send_file().
entity = await self.get_input_entity(entity)
if not utils.is_list_like(caption):
caption = (caption,)
captions = []
for caption in reversed(caption): # Pop from the end (so reverse)
captions.append(await self._parse_message_text(caption or '',
parse_mode))
reply_to = self._get_message_id(reply_to)
# Need to upload the media first, but only if they're not cached yet
media = []
for file in files:
# fh will either be InputPhoto or a modified InputFile
fh = await self.upload_file(file, use_cache=InputPhoto)
if not isinstance(fh, InputPhoto):
input_photo = utils.get_input_photo((await self(UploadMediaRequest(
entity, media=InputMediaUploadedPhoto(fh)
))).photo)
await self.session.cache_file(fh.md5, fh.size, input_photo)
fh = input_photo
if captions:
caption, msg_entities = captions.pop()
else:
caption, msg_entities = '', None
media.append(InputSingleMedia(InputMediaPhoto(fh), message=caption,
entities=msg_entities))
# Now we can construct the multi-media request
result = await self(SendMultiMediaRequest(
entity, reply_to_msg_id=reply_to, multi_media=media
))
return [
self._get_response_message(update.id, result)
for update in result.updates
if isinstance(update, UpdateMessageID)
]
async def upload_file(self, file, part_size_kb=None, file_name=None,
use_cache=None, progress_callback=None):
"""
Uploads the specified file and returns a handle (an instance of
:tl:`InputFile` or :tl:`InputFileBig`, as required) which can be
later used before it expires (they are usable during less than a day).
Uploading a file will simply return a "handle" to the file stored
remotely in the Telegram servers, which can be later used on. This
will **not** upload the file to your own chat or any chat at all.
Args:
file (`str` | `bytes` | `file`):
The path of the file, byte array, or stream that will be sent.
Note that if a byte array or a stream is given, a filename
or its type won't be inferred, and it will be sent as an
"unnamed application/octet-stream".
part_size_kb (`int`, optional):
Chunk size when uploading files. The larger, the less
requests will be made (up to 512KB maximum).
file_name (`str`, optional):
The file name which will be used on the resulting InputFile.
If not specified, the name will be taken from the ``file``
and if this is not a ``str``, it will be ``"unnamed"``.
use_cache (`type`, optional):
The type of cache to use (currently either :tl:`InputDocument`
or :tl:`InputPhoto`). If present and the file is small enough
to need the MD5, it will be checked against the database,
and if a match is found, the upload won't be made. Instead,
an instance of type ``use_cache`` will be returned.
progress_callback (`callable`, optional):
A callback function accepting two parameters:
``(sent bytes, total)``.
Returns:
:tl:`InputFileBig` if the file size is larger than 10MB,
`telethon.tl.custom.input_sized_file.InputSizedFile`
(subclass of :tl:`InputFile`) otherwise.
"""
if isinstance(file, (InputFile, InputFileBig)):
return file # Already uploaded
if isinstance(file, str):
file_size = os.path.getsize(file)
elif isinstance(file, bytes):
file_size = len(file)
else:
file = file.read()
file_size = len(file)
# File will now either be a string or bytes
if not part_size_kb:
part_size_kb = utils.get_appropriated_part_size(file_size)
if part_size_kb > 512:
raise ValueError('The part size must be less or equal to 512KB')
part_size = int(part_size_kb * 1024)
if part_size % 1024 != 0:
raise ValueError(
'The part size must be evenly divisible by 1024')
# Set a default file name if None was specified
file_id = helpers.generate_random_long()
if not file_name:
if isinstance(file, str):
file_name = os.path.basename(file)
else:
file_name = str(file_id)
# Determine whether the file is too big (over 10MB) or not
# Telegram does make a distinction between smaller or larger files
is_large = file_size > 10 * 1024 * 1024
hash_md5 = hashlib.md5()
if not is_large:
# Calculate the MD5 hash before anything else.
# As this needs to be done always for small files,
# might as well do it before anything else and
# check the cache.
if isinstance(file, str):
with open(file, 'rb') as stream:
file = stream.read()
hash_md5.update(file)
if use_cache:
cached = await self.session.get_file(
hash_md5.digest(), file_size, cls=use_cache
)
if cached:
return cached
part_count = (file_size + part_size - 1) // part_size
__log__.info('Uploading file of %d bytes in %d chunks of %d',
file_size, part_count, part_size)
with open(file, 'rb') if isinstance(file, str) else BytesIO(file) \
as stream:
for part_index in range(part_count):
# Read the file by in chunks of size part_size
part = stream.read(part_size)
# The SavePartRequest is different depending on whether
# the file is too large or not (over or less than 10MB)
if is_large:
request = SaveBigFilePartRequest(file_id, part_index,
part_count, part)
else:
request = SaveFilePartRequest(file_id, part_index, part)
result = await self(request)
if result:
__log__.debug('Uploaded %d/%d', part_index + 1,
part_count)
if progress_callback:
progress_callback(stream.tell(), file_size)
else:
raise RuntimeError(
'Failed to upload file part {}.'.format(part_index))
if is_large:
return InputFileBig(file_id, part_count, file_name)
else:
return InputSizedFile(
file_id, part_count, file_name, md5=hash_md5, size=file_size
)
# endregion
# region Downloading media requests
async def download_profile_photo(self, entity, file=None, download_big=True):
"""
Downloads the profile photo of the given entity (user/chat/channel).
Args:
entity (`entity`):
From who the photo will be downloaded.
file (`str` | `file`, optional):
The output file path, directory, or stream-like object.
If the path exists and is a file, it will be overwritten.
download_big (`bool`, optional):
Whether to use the big version of the available photos.
Returns:
``None`` if no photo was provided, or if it was Empty. On success
the file path is returned since it may differ from the one given.
"""
# hex(crc32(x.encode('ascii'))) for x in
# ('User', 'Chat', 'UserFull', 'ChatFull')
ENTITIES = (0x2da17977, 0xc5af5d94, 0x1f4661b9, 0xd49a2697)
# ('InputPeer', 'InputUser', 'InputChannel')
INPUTS = (0xc91c90b6, 0xe669bf46, 0x40f202fd)
if not isinstance(entity, TLObject) or entity.SUBCLASS_OF_ID in INPUTS:
entity = await self.get_entity(entity)
possible_names = []
if entity.SUBCLASS_OF_ID not in ENTITIES:
photo = entity
else:
if not hasattr(entity, 'photo'):
# Special case: may be a ChatFull with photo:Photo
# This is different from a normal UserProfilePhoto and Chat
if not hasattr(entity, 'chat_photo'):
return None
return await self._download_photo(
entity.chat_photo, file, date=None, progress_callback=None)
for attr in ('username', 'first_name', 'title'):
possible_names.append(getattr(entity, attr, None))
photo = entity.photo
if isinstance(photo, (UserProfilePhoto, ChatPhoto)):
loc = photo.photo_big if download_big else photo.photo_small
else:
try:
loc = utils.get_input_location(photo)
except TypeError:
return None
file = self._get_proper_filename(
file, 'profile_photo', '.jpg',
possible_names=possible_names
)
try:
await self.download_file(loc, file)
return file
except LocationInvalidError:
# See issue #500, Android app fails as of v4.6.0 (1155).
# The fix seems to be using the full channel chat photo.
ie = await self.get_input_entity(entity)
if isinstance(ie, InputPeerChannel):
full = await self(GetFullChannelRequest(ie))
return await self._download_photo(
full.full_chat.chat_photo, file,
date=None, progress_callback=None
)
else:
# Until there's a report for chats, no need to.
return None
async def download_media(self, message, file=None, progress_callback=None):
"""
Downloads the given media, or the media from a specified Message.
Note that if the download is too slow, you should consider installing
``cryptg`` (through ``pip install cryptg``) so that decrypting the
received data is done in C instead of Python (much faster).
message (:tl:`Message` | :tl:`Media`):
The media or message containing the media that will be downloaded.
file (`str` | `file`, optional):
The output file path, directory, or stream-like object.
If the path exists and is a file, it will be overwritten.
progress_callback (`callable`, optional):
A callback function accepting two parameters:
``(received bytes, total)``.
Returns:
``None`` if no media was provided, or if it was Empty. On success
the file path is returned since it may differ from the one given.
"""
# TODO This won't work for messageService
if isinstance(message, Message):
date = message.date
media = message.media
else:
date = datetime.now()
media = message
if isinstance(media, MessageMediaWebPage):
if isinstance(media.webpage, WebPage):
media = media.webpage.document or media.webpage.photo
if isinstance(media, (MessageMediaPhoto, Photo,
PhotoSize, PhotoCachedSize)):
return await self._download_photo(
media, file, date, progress_callback
)
elif isinstance(media, (MessageMediaDocument, Document)):
return await self._download_document(
media, file, date, progress_callback
)
elif isinstance(media, MessageMediaContact):
return self._download_contact(
media, file
)
async def _download_photo(self, photo, file, date, progress_callback):
"""Specialized version of .download_media() for photos"""
# Determine the photo and its largest size
if isinstance(photo, MessageMediaPhoto):
photo = photo.photo
if isinstance(photo, Photo):
for size in reversed(photo.sizes):
if not isinstance(size, PhotoSizeEmpty):
photo = size
break
else:
return
if not isinstance(photo, (PhotoSize, PhotoCachedSize)):
return
file = self._get_proper_filename(file, 'photo', '.jpg', date=date)
if isinstance(photo, PhotoCachedSize):
# No need to download anything, simply write the bytes
if isinstance(file, str):
helpers.ensure_parent_dir_exists(file)
f = open(file, 'wb')
else:
f = file
try:
f.write(photo.bytes)
finally:
if isinstance(file, str):
f.close()
return file
await self.download_file(photo.location, file, file_size=photo.size,
progress_callback=progress_callback)
return file
async def _download_document(self, document, file, date, progress_callback):
"""Specialized version of .download_media() for documents."""
if isinstance(document, MessageMediaDocument):
document = document.document
if not isinstance(document, Document):
return
file_size = document.size
kind = 'document'
possible_names = []
for attr in document.attributes:
if isinstance(attr, DocumentAttributeFilename):
possible_names.insert(0, attr.file_name)
elif isinstance(attr, DocumentAttributeAudio):
kind = 'audio'
if attr.performer and attr.title:
possible_names.append('{} - {}'.format(
attr.performer, attr.title
))
elif attr.performer:
possible_names.append(attr.performer)
elif attr.title:
possible_names.append(attr.title)
elif attr.voice:
kind = 'voice'
file = self._get_proper_filename(
file, kind, utils.get_extension(document),
date=date, possible_names=possible_names
)
await self.download_file(document, file, file_size=file_size,
progress_callback=progress_callback)
return file
@staticmethod
def _download_contact(mm_contact, file):
"""Specialized version of .download_media() for contacts.
Will make use of the vCard 4.0 format.
"""
first_name = mm_contact.first_name
last_name = mm_contact.last_name
phone_number = mm_contact.phone_number
if isinstance(file, str):
file = TelegramClient._get_proper_filename(
file, 'contact', '.vcard',
possible_names=[first_name, phone_number, last_name]
)
f = open(file, 'w', encoding='utf-8')
else:
f = file
try:
# Remove these pesky characters
first_name = first_name.replace(';', '')
last_name = (last_name or '').replace(';', '')
f.write('BEGIN:VCARD\n')
f.write('VERSION:4.0\n')
f.write('N:{};{};;;\n'.format(first_name, last_name))
f.write('FN:{} {}\n'.format(first_name, last_name))
f.write('TEL;TYPE=cell;VALUE=uri:tel:+{}\n'.format(phone_number))
f.write('END:VCARD\n')
finally:
# Only close the stream if we opened it
if isinstance(file, str):
f.close()
return file
@staticmethod
def _get_proper_filename(file, kind, extension,
date=None, possible_names=None):
"""Gets a proper filename for 'file', if this is a path.
'kind' should be the kind of the output file (photo, document...)
'extension' should be the extension to be added to the file if
the filename doesn't have any yet
'date' should be when this file was originally sent, if known
'possible_names' should be an ordered list of possible names
If no modification is made to the path, any existing file
will be overwritten.
If any modification is made to the path, this method will
ensure that no existing file will be overwritten.
"""
if file is not None and not isinstance(file, str):
# Probably a stream-like object, we cannot set a filename here
return file
if file is None:
file = ''
elif os.path.isfile(file):
# Make no modifications to valid existing paths
return file
if os.path.isdir(file) or not file:
try:
name = None if possible_names is None else next(
x for x in possible_names if x
)
except StopIteration:
name = None
if not name:
if not date:
date = datetime.now()
name = '{}_{}-{:02}-{:02}_{:02}-{:02}-{:02}'.format(
kind,
date.year, date.month, date.day,
date.hour, date.minute, date.second,
)
file = os.path.join(file, name)
directory, name = os.path.split(file)
name, ext = os.path.splitext(name)
if not ext:
ext = extension
result = os.path.join(directory, name + ext)
if not os.path.isfile(result):
return result
i = 1
while True:
result = os.path.join(directory, '{} ({}){}'.format(name, i, ext))
if not os.path.isfile(result):
return result
i += 1
async def download_file(self, input_location, file=None, part_size_kb=None,
file_size=None, progress_callback=None):
"""
Downloads the given input location to a file.
Args:
input_location (:tl:`FileLocation` | :tl:`InputFileLocation`):
The file location from which the file will be downloaded.
See `telethon.utils.get_input_location` source for a complete
list of supported types.
file (`str` | `file`, optional):
The output file path, directory, or stream-like object.
If the path exists and is a file, it will be overwritten.
If the file path is ``None``, then the result will be
saved in memory and returned as `bytes`.
part_size_kb (`int`, optional):
Chunk size when downloading files. The larger, the less
requests will be made (up to 512KB maximum).
file_size (`int`, optional):
The file size that is about to be downloaded, if known.
Only used if ``progress_callback`` is specified.
progress_callback (`callable`, optional):
A callback function accepting two parameters:
``(downloaded bytes, total)``. Note that the
``total`` is the provided ``file_size``.
"""
if not part_size_kb:
if not file_size:
part_size_kb = 64 # Reasonable default
else:
part_size_kb = utils.get_appropriated_part_size(file_size)
part_size = int(part_size_kb * 1024)
# https://core.telegram.org/api/files says:
# > part_size % 1024 = 0 (divisible by 1KB)
#
# But https://core.telegram.org/cdn (more recent) says:
# > limit must be divisible by 4096 bytes
# So we just stick to the 4096 limit.
if part_size % 4096 != 0:
raise ValueError(
'The part size must be evenly divisible by 4096.')
in_memory = file is None
if in_memory:
f = io.BytesIO()
elif isinstance(file, str):
# Ensure that we'll be able to download the media
helpers.ensure_parent_dir_exists(file)
f = open(file, 'wb')
else:
f = file
# The used client will change if FileMigrateError occurs
client = self
cdn_decrypter = None
input_location = utils.get_input_location(input_location)
__log__.info('Downloading file in chunks of %d bytes', part_size)
try:
offset = 0
while True:
try:
if cdn_decrypter:
result = await cdn_decrypter.get_file()
else:
result = await client(GetFileRequest(
input_location, offset, part_size
))
if isinstance(result, FileCdnRedirect):
__log__.info('File lives in a CDN')
cdn_decrypter, result = \
await CdnDecrypter.prepare_decrypter(
client,
await self._get_cdn_client(result),
result
)
except FileMigrateError as e:
__log__.info('File lives in another DC')
client = await self._get_exported_client(e.new_dc)
continue
offset += part_size
# 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 some extra information, unless it's a CDN file
if in_memory:
f.flush()
return f.getvalue()
else:
return getattr(result, 'type', '')
f.write(result.bytes)
__log__.debug('Saved %d more bytes', len(result.bytes))
if progress_callback:
progress_callback(f.tell(), file_size)
finally:
if client != self:
client.disconnect()
if cdn_decrypter:
try:
cdn_decrypter.client.disconnect()
except:
pass
if isinstance(file, str) or in_memory:
f.close()
# endregion
# endregion
# region Event handling
def on(self, event):
"""
Decorator helper method around add_event_handler().
Args:
event (`_EventBuilder` | `type`):
The event builder class or instance to be used,
for instance ``events.NewMessage``.
"""
def decorator(f):
if self._loop.is_running():
asyncio.ensure_future(self.add_event_handler(f, event))
else:
self._loop.run_until_complete(self.add_event_handler(f, event))
return f
return decorator
async def _check_events_pending_resolve(self):
if self._events_pending_resolve:
for event in self._events_pending_resolve:
await event.resolve(self)
self._events_pending_resolve.clear()
async def _on_handler(self, update):
for builder, callback in self._event_builders:
event = builder.build(update)
if event:
event._client = self
event.original_update = update
try:
await callback(event)
except events.StopPropagation:
__log__.debug(
"Event handler '{}' stopped chain of "
"propagation for event {}."
.format(callback.__name__, type(event).__name__)
)
break
async def add_event_handler(self, callback, event=None):
"""
Registers the given callback to be called on the specified event.
Args:
callback (`callable`):
The callable function accepting one parameter to be used.
event (`_EventBuilder` | `type`, optional):
The event builder class or instance to be used,
for instance ``events.NewMessage``.
If left unspecified, `telethon.events.raw.Raw` (the
:tl:`Update` objects with no further processing) will
be passed instead.
"""
self.update_handler = self._on_handler
if isinstance(event, type):
event = event()
elif not event:
event = events.Raw()
if self.is_user_authorized():
await event.resolve(self)
await self._check_events_pending_resolve()
else:
self._events_pending_resolve.append(event)
self._event_builders.append((event, callback))
def remove_event_handler(self, callback, event=None):
"""
Inverse operation of :meth:`add_event_handler`.
If no event is given, all events for this callback are removed.
Returns how many callbacks were removed.
"""
found = 0
if event and not isinstance(event, type):
event = type(event)
i = len(self._event_builders)
while i:
i -= 1
ev, cb = self._event_builders[i]
if cb == callback and (not event or isinstance(ev, event)):
del self._event_builders[i]
found += 1
return found
def list_event_handlers(self):
"""
Lists all added event handlers, returning a list of pairs
consisting of (callback, event).
"""
return [(callback, event) for event, callback in self._event_builders]
async def add_update_handler(self, handler):
"""Deprecated, see :meth:`add_event_handler`."""
warnings.warn(
'add_update_handler is deprecated, use the @client.on syntax '
'or add_event_handler(callback, events.Raw) instead (see '
'https://telethon.rtfd.io/en/latest/extra/basic/working-'
'with-updates.html)'
)
return await self.add_event_handler(handler, events.Raw)
def remove_update_handler(self, handler):
return self.remove_event_handler(handler)
def list_update_handlers(self):
return [callback for callback, _ in self.list_event_handlers()]
async def catch_up(self):
state = self.session.get_update_state(0)
if not state or not state.pts:
return
self.session.catching_up = True
try:
while True:
d = await self(GetDifferenceRequest(state.pts, state.date, state.qts))
if isinstance(d, DifferenceEmpty):
state.date = d.date
state.seq = d.seq
break
elif isinstance(d, (DifferenceSlice, Difference)):
if isinstance(d, Difference):
state = d.state
elif d.intermediate_state.pts > state.pts:
state = d.intermediate_state
else:
# TODO Figure out why other applications can rely on
# using always the intermediate_state to eventually
# reach a DifferenceEmpty, but that leads to an
# infinite loop here (so check against old pts to stop)
break
self._updates_handler(Updates(
users=d.users,
chats=d.chats,
date=state.date,
seq=state.seq,
updates=d.other_updates + [UpdateNewMessage(m, 0, 0)
for m in d.new_messages]
))
elif isinstance(d, DifferenceTooLong):
break
finally:
self.session.set_update_state(0, state)
self.session.catching_up = False
# endregion
# region Small utilities to make users' life easier
async def get_entity(self, entity):
"""
Turns the given entity into a valid Telegram user or chat.
entity (`str` | `int` | :tl:`Peer` | :tl:`InputPeer`):
The entity (or iterable of entities) to be transformed.
If it's a string which can be converted to an integer or starts
with '+' it will be resolved as if it were a phone number.
If it doesn't start with '+' or starts with a '@' it will be
be resolved from the username. If no exact match is returned,
an error will be raised.
If the entity is an integer or a Peer, its information will be
returned through a call to self.get_input_peer(entity).
If the entity is neither, and it's not a TLObject, an
error will be raised.
Returns:
:tl:`User`, :tl:`Chat` or :tl:`Channel` corresponding to the
input entity. A list will be returned if more than one was given.
"""
single = not utils.is_list_like(entity)
if single:
entity = (entity,)
# Group input entities by string (resolve username),
# input users (get users), input chat (get chats) and
# input channels (get channels) to get the most entities
# in the less amount of calls possible.
inputs = []
for x in entity:
inputs.append(x if isinstance(x, str)
else await self.get_input_entity(x))
users = [x for x in inputs
if isinstance(x, (InputPeerUser, InputPeerSelf))]
chats = [x.chat_id for x in inputs if isinstance(x, InputPeerChat)]
channels = [x for x in inputs if isinstance(x, InputPeerChannel)]
if users:
# GetUsersRequest has a limit of 200 per call
tmp = []
while users:
curr, users = users[:200], users[200:]
tmp.extend(await self(GetUsersRequest(curr)))
users = tmp
if chats: # TODO Handle chats slice?
chats = (await self(GetChatsRequest(chats))).chats
if channels:
channels = (await self(GetChannelsRequest(channels))).chats
# Merge users, chats and channels into a single dictionary
id_entity = {
utils.get_peer_id(x): x
for x in itertools.chain(users, chats, channels)
}
# We could check saved usernames and put them into the users,
# chats and channels list from before. While this would reduce
# the amount of ResolveUsername calls, it would fail to catch
# username changes.
result = []
for x in inputs:
if isinstance(x, str):
result.append(await self._get_entity_from_string(x))
elif not isinstance(x, InputPeerSelf):
result.append(id_entity[utils.get_peer_id(x)])
else:
result.append(next(u for u in id_entity.values()
if isinstance(u, User) and u.is_self))
return result[0] if single else result
async def _get_entity_from_string(self, string):
"""
Gets a full entity from the given string, which may be a phone or
an username, and processes all the found entities on the session.
The string may also be a user link, or a channel/chat invite link.
This method has the side effect of adding the found users to the
session database, so it can be queried later without API calls,
if this option is enabled on the session.
Returns the found entity, or raises TypeError if not found.
"""
phone = utils.parse_phone(string)
if phone:
for user in (await self(GetContactsRequest(0))).users:
if user.phone == phone:
return user
else:
username, is_join_chat = utils.parse_username(string)
if is_join_chat:
invite = await self(CheckChatInviteRequest(username))
if isinstance(invite, ChatInvite):
raise ValueError(
'Cannot get entity from a channel (or group) '
'that you are not part of. Join the group and retry'
)
elif isinstance(invite, ChatInviteAlready):
return invite.chat
elif username:
if username in ('me', 'self'):
return await self.get_me()
try:
result = await self(ResolveUsernameRequest(username))
except UsernameNotOccupiedError as e:
raise ValueError('No user has "{}" as username'
.format(username)) from e
for entity in itertools.chain(result.users, result.chats):
if getattr(entity, 'username', None) or ''\
.lower() == username:
return entity
try:
# Nobody with this username, maybe it's an exact name/title
return await self.get_entity(
await self.session.get_input_entity(string))
except ValueError:
pass
raise ValueError(
'Cannot find any entity corresponding to "{}"'.format(string)
)
async def get_input_entity(self, peer):
"""
Turns the given peer into its input entity version. Most requests
use this kind of InputUser, InputChat and so on, so this is the
most suitable call to make for those cases.
entity (`str` | `int` | :tl:`Peer` | :tl:`InputPeer`):
The integer ID of an user or otherwise either of a
:tl:`PeerUser`, :tl:`PeerChat` or :tl:`PeerChannel`, for
which to get its ``Input*`` version.
If this ``Peer`` hasn't been seen before by the library, the top
dialogs will be loaded and their entities saved to the session
file (unless this feature was disabled explicitly).
If in the end the access hash required for the peer was not found,
a ValueError will be raised.
Returns:
:tl:`InputPeerUser`, :tl:`InputPeerChat` or :tl:`InputPeerChannel`
or :tl:`InputPeerSelf` if the parameter is ``'me'`` or ``'self'``.
If you need to get the ID of yourself, you should use
`get_me` with ``input_peer=True``) instead.
"""
if peer in ('me', 'self'):
return InputPeerSelf()
try:
# First try to get the entity from cache, otherwise figure it out
return await self.session.get_input_entity(peer)
except ValueError:
pass
if isinstance(peer, str):
return utils.get_input_peer(await self._get_entity_from_string(peer))
if not isinstance(peer, int) and (not isinstance(peer, TLObject)
or peer.SUBCLASS_OF_ID != 0x2d45687):
# Try casting the object into an input peer. Might TypeError.
# Don't do it if a not-found ID was given (instead ValueError).
# Also ignore Peer (0x2d45687 == crc32(b'Peer'))'s, lacking hash.
return utils.get_input_peer(peer)
raise ValueError(
'Could not find the input entity for "{}". Please read https://'
'telethon.readthedocs.io/en/latest/extra/basic/entities.html to'
' find out more details.'
.format(peer)
)
async def edit_2fa(self, current_password=None, new_password=None, hint='',
email=None):
"""
Changes the 2FA settings of the logged in user, according to the
passed parameters. Take note of the parameter explanations.
Has no effect if both current and new password are omitted.
current_password (`str`, optional):
The current password, to authorize changing to ``new_password``.
Must be set if changing existing 2FA settings.
Must **not** be set if 2FA is currently disabled.
Passing this by itself will remove 2FA (if correct).
new_password (`str`, optional):
The password to set as 2FA.
If 2FA was already enabled, ``current_password`` **must** be set.
Leaving this blank or ``None`` will remove the password.
hint (`str`, optional):
Hint to be displayed by Telegram when it asks for 2FA.
Leaving unspecified is highly discouraged.
Has no effect if ``new_password`` is not set.
email (`str`, optional):
Recovery and verification email. Raises ``EmailUnconfirmedError``
if value differs from current one, and has no effect if
``new_password`` is not set.
Returns:
``True`` if successful, ``False`` otherwise.
"""
if new_password is None and current_password is None:
return False
pass_result = await self(GetPasswordRequest())
if isinstance(pass_result, NoPassword) and current_password:
current_password = None
salt_random = os.urandom(8)
salt = pass_result.new_salt + salt_random
if not current_password:
current_password_hash = salt
else:
current_password = pass_result.current_salt +\
current_password.encode() + pass_result.current_salt
current_password_hash = hashlib.sha256(current_password).digest()
if new_password: # Setting new password
new_password = salt + new_password.encode('utf-8') + salt
new_password_hash = hashlib.sha256(new_password).digest()
new_settings = PasswordInputSettings(
new_salt=salt,
new_password_hash=new_password_hash,
hint=hint
)
if email: # If enabling 2FA or changing email
new_settings.email = email # TG counts empty string as None
return await self(UpdatePasswordSettingsRequest(
current_password_hash, new_settings=new_settings
))
else: # Removing existing password
return await self(UpdatePasswordSettingsRequest(
current_password_hash,
new_settings=PasswordInputSettings(
new_salt=bytes(),
new_password_hash=bytes(),
hint=hint
)
))
# endregion
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