Telethon/telethon/client/uploads.py

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import hashlib
import io
import itertools
import os
import pathlib
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import re
import typing
from io import BytesIO
from ..crypto import AES
from .. import utils, helpers, hints
from ..tl import types, functions, custom
try:
import PIL
import PIL.Image
except ImportError:
PIL = None
if typing.TYPE_CHECKING:
from .telegramclient import TelegramClient
class _CacheType:
"""Like functools.partial but pretends to be the wrapped class."""
def __init__(self, cls):
self._cls = cls
def __call__(self, *args, **kwargs):
return self._cls(*args, file_reference=b'', **kwargs)
def __eq__(self, other):
return self._cls == other
def _resize_photo_if_needed(
file, is_image, width=2560, height=2560, background=(255, 255, 255)):
# https://github.com/telegramdesktop/tdesktop/blob/12905f0dcb9d513378e7db11989455a1b764ef75/Telegram/SourceFiles/boxes/photo_crop_box.cpp#L254
if (not is_image
or PIL is None
or (isinstance(file, io.IOBase) and not file.seekable())):
return file
if isinstance(file, bytes):
file = io.BytesIO(file)
before = file.tell() if isinstance(file, io.IOBase) else None
try:
# Don't use a `with` block for `image`, or `file` would be closed.
# See https://github.com/LonamiWebs/Telethon/issues/1121 for more.
image = PIL.Image.open(file)
try:
kwargs = {'exif': image.info['exif']}
except KeyError:
kwargs = {}
if image.width <= width and image.height <= height:
return file
image.thumbnail((width, height), PIL.Image.ANTIALIAS)
alpha_index = image.mode.find('A')
if alpha_index == -1:
# If the image mode doesn't have alpha
# channel then don't bother masking it away.
result = image
else:
# We could save the resized image with the original format, but
# JPEG often compresses better -> smaller size -> faster upload
# We need to mask away the alpha channel ([3]), since otherwise
# IOError is raised when trying to save alpha channels in JPEG.
result = PIL.Image.new('RGB', image.size, background)
result.paste(image, mask=image.split()[alpha_index])
buffer = io.BytesIO()
result.save(buffer, 'JPEG', **kwargs)
buffer.seek(0)
return buffer
except IOError:
return file
finally:
if before is not None:
file.seek(before, io.SEEK_SET)
class UploadMethods:
# region Public methods
async def send_file(
self: 'TelegramClient',
entity: 'hints.EntityLike',
file: 'typing.Union[hints.FileLike, typing.Sequence[hints.FileLike]]',
*,
caption: typing.Union[str, typing.Sequence[str]] = None,
force_document: bool = False,
file_size: int = None,
clear_draft: bool = False,
progress_callback: 'hints.ProgressCallback' = None,
reply_to: 'hints.MessageIDLike' = None,
attributes: 'typing.Sequence[types.TypeDocumentAttribute]' = None,
thumb: 'hints.FileLike' = None,
allow_cache: bool = True,
parse_mode: str = (),
formatting_entities: typing.Optional[typing.List[types.TypeMessageEntity]] = None,
voice_note: bool = False,
video_note: bool = False,
buttons: typing.Optional['hints.MarkupLike'] = None,
silent: bool = None,
background: bool = None,
supports_streaming: bool = False,
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schedule: 'hints.DateLike' = None,
comment_to: 'typing.Union[int, types.Message]' = None,
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ttl: int = None,
**kwargs) -> 'types.Message':
"""
Sends message with the given file to the specified entity.
.. note::
If the ``hachoir3`` package (``hachoir`` module) is installed,
it will be used to determine metadata from audio and video files.
If the ``pillow`` package is installed and you are sending a photo,
it will be resized to fit within the maximum dimensions allowed
by Telegram to avoid ``errors.PhotoInvalidDimensionsError``. This
cannot be done if you are sending :tl:`InputFile`, however.
Arguments
entity (`entity`):
Who will receive the file.
file (`str` | `bytes` | `file` | `media`):
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The file to send, which can be one of:
* A local file path to an in-disk file. The file name
will be the path's base name.
* A `bytes` byte array with the file's data to send
(for example, by using ``text.encode('utf-8')``).
A default file name will be used.
* A bytes `io.IOBase` stream over the file to send
(for example, by using ``open(file, 'rb')``).
Its ``.name`` property will be used for the file name,
or a default if it doesn't have one.
* An external URL to a file over the internet. This will
send the file as "external" media, and Telegram is the
one that will fetch the media and send it.
* A Bot API-like ``file_id``. You can convert previously
sent media to file IDs for later reusing with
`telethon.utils.pack_bot_file_id`.
* A handle to an existing file (for example, if you sent a
message with media before, you can use its ``message.media``
as a file here).
* A handle to an uploaded file (from `upload_file`).
* A :tl:`InputMedia` instance. For example, if you want to
send a dice use :tl:`InputMediaDice`, or if you want to
send a contact use :tl:`InputMediaContact`.
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To send an album, you should provide a list in this parameter.
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. When sending an
album, the caption may be a list of strings, which will be
assigned to the files pairwise.
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.
file_size (`int`, optional):
The size of the file to be uploaded if it needs to be uploaded,
which will be determined automatically if not specified.
If the file size can't be determined beforehand, the entire
file will be read in-memory to find out how large it is.
clear_draft (`bool`, optional):
Whether the existing draft should be cleared or not.
progress_callback (`callable`, optional):
A callback function accepting two parameters:
``(sent bytes, total)``.
reply_to (`int` | `Message <telethon.tl.custom.message.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):
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Optional JPEG thumbnail (for documents). **Telegram will
ignore this parameter** unless you pass a ``.jpg`` file!
The file must also be small in dimensions and in disk size.
Successful thumbnails were files below 20kB and 320x320px.
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Width/height and dimensions/size ratios may be important.
For Telegram to accept a thumbnail, you must provide the
dimensions of the underlying media through ``attributes=``
with :tl:`DocumentAttributesVideo` or by installing the
optional ``hachoir`` dependency.
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allow_cache (`bool`, optional):
This parameter currently does nothing, but is kept for
backward-compatibility (and it may get its use back in
the future).
parse_mode (`object`, optional):
See the `TelegramClient.parse_mode
<telethon.client.messageparse.MessageParseMethods.parse_mode>`
property for allowed values. Markdown parsing will be used by
default.
formatting_entities (`list`, optional):
A list of message formatting entities. When provided, the ``parse_mode`` is ignored.
voice_note (`bool`, optional):
If `True` the audio will be sent as a voice note.
video_note (`bool`, optional):
If `True` the video will be sent as a video note,
also known as a round video message.
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buttons (`list`, `custom.Button <telethon.tl.custom.button.Button>`, :tl:`KeyboardButton`):
The matrix (list of lists), row list or button to be shown
after sending the message. This parameter will only work if
you have signed in as a bot. You can also pass your own
:tl:`ReplyMarkup` here.
silent (`bool`, optional):
Whether the message should notify people with sound or not.
Defaults to `False` (send with a notification sound unless
the person has the chat muted). Set it to `True` to alter
this behaviour.
background (`bool`, optional):
Whether the message should be send in background.
supports_streaming (`bool`, optional):
Whether the sent video supports streaming or not. Note that
Telegram only recognizes as streamable some formats like MP4,
and others like AVI or MKV will not work. You should convert
these to MP4 before sending if you want them to be streamable.
Unsupported formats will result in ``VideoContentTypeError``.
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schedule (`hints.DateLike`, optional):
If set, the file won't send immediately, and instead
it will be scheduled to be automatically sent at a later
time.
comment_to (`int` | `Message <telethon.tl.custom.message.Message>`, optional):
Similar to ``reply_to``, but replies in the linked group of a
broadcast channel instead (effectively leaving a "comment to"
the specified message).
This parameter takes precedence over ``reply_to``. If there is
no linked chat, `telethon.errors.sgIdInvalidError` is raised.
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ttl (`int`. optional):
The Time-To-Live of the file (also known as "self-destruct timer"
or "self-destructing media"). If set, files can only be viewed for
a short period of time before they disappear from the message
history automatically.
The value must be at least 1 second, and at most 60 seconds,
otherwise Telegram will ignore this parameter.
Not all types of media can be used with this parameter, such
as text documents, which will fail with ``TtlMediaInvalidError``.
Returns
The `Message <telethon.tl.custom.message.Message>` (or messages)
containing the sent file, or messages if a list of them was passed.
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Example
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.. code-block:: python
# Normal files like photos
await client.send_file(chat, '/my/photos/me.jpg', caption="It's me!")
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# or
await client.send_message(chat, "It's me!", file='/my/photos/me.jpg')
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# Voice notes or round videos
await client.send_file(chat, '/my/songs/song.mp3', voice_note=True)
await client.send_file(chat, '/my/videos/video.mp4', video_note=True)
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# Custom thumbnails
await client.send_file(chat, '/my/documents/doc.txt', thumb='photo.jpg')
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# Only documents
await client.send_file(chat, '/my/photos/photo.png', force_document=True)
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# Albums
await client.send_file(chat, [
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'/my/photos/holiday1.jpg',
'/my/photos/holiday2.jpg',
'/my/drawings/portrait.png'
])
# Printing upload progress
def callback(current, total):
print('Uploaded', current, 'out of', total,
'bytes: {:.2%}'.format(current / total))
await client.send_file(chat, file, progress_callback=callback)
# Dices, including dart and other future emoji
from telethon.tl import types
await client.send_file(chat, types.InputMediaDice(''))
await client.send_file(chat, types.InputMediaDice('🎯'))
# Contacts
await client.send_file(chat, types.InputMediaContact(
phone_number='+34 123 456 789',
first_name='Example',
last_name='',
vcard=''
))
"""
# TODO Properly implement allow_cache to reuse the sha256 of the file
# i.e. `None` was used
if not file:
raise TypeError('Cannot use {!r} as file'.format(file))
if not caption:
caption = ''
entity = await self.get_input_entity(entity)
if comment_to is not None:
entity, reply_to = await self._get_comment_data(entity, comment_to)
else:
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reply_to = utils.get_message_id(reply_to)
# First check if the user passed an iterable, in which case
# we may want to send grouped.
if utils.is_list_like(file):
sent_count = 0
used_callback = None if not progress_callback else (
lambda s, t: progress_callback(sent_count + s, len(file))
)
if utils.is_list_like(caption):
captions = caption
else:
captions = [caption]
result = []
while file:
result += await self._send_album(
entity, file[:10], caption=captions[:10],
progress_callback=used_callback, reply_to=reply_to,
parse_mode=parse_mode, silent=silent, schedule=schedule,
supports_streaming=supports_streaming, clear_draft=clear_draft,
force_document=force_document, background=background,
)
file = file[10:]
captions = captions[10:]
sent_count += 10
return result
if formatting_entities is not None:
msg_entities = formatting_entities
else:
caption, msg_entities =\
await self._parse_message_text(caption, parse_mode)
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file_handle, media, image = await self._file_to_media(
file, force_document=force_document,
file_size=file_size,
progress_callback=progress_callback,
attributes=attributes, allow_cache=allow_cache, thumb=thumb,
voice_note=voice_note, video_note=video_note,
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supports_streaming=supports_streaming, ttl=ttl
)
# e.g. invalid cast from :tl:`MessageMediaWebPage`
if not media:
raise TypeError('Cannot use {!r} as file'.format(file))
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markup = self.build_reply_markup(buttons)
request = functions.messages.SendMediaRequest(
entity, media, reply_to_msg_id=reply_to, message=caption,
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entities=msg_entities, reply_markup=markup, silent=silent,
schedule_date=schedule, clear_draft=clear_draft,
background=background
)
return self._get_response_message(request, await self(request), entity)
async def _send_album(self: 'TelegramClient', entity, files, caption='',
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progress_callback=None, reply_to=None,
parse_mode=(), silent=None, schedule=None,
supports_streaming=None, clear_draft=None,
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force_document=False, background=None, ttl=None):
"""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,)
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captions = []
for c in reversed(caption): # Pop from the end (so reverse)
captions.append(await self._parse_message_text(c or '', parse_mode))
reply_to = utils.get_message_id(reply_to)
used_callback = None if not progress_callback else (
# use an integer when sent matches total, to easily determine a file has been fully sent
lambda s, t: progress_callback(sent_count + 1 if s == t else sent_count + s / t, len(files))
)
# Need to upload the media first, but only if they're not cached yet
media = []
for sent_count, file in enumerate(files):
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# Albums want :tl:`InputMedia` which, in theory, includes
# :tl:`InputMediaUploadedPhoto`. However using that will
# make it `raise MediaInvalidError`, so we need to upload
# it as media and then convert that to :tl:`InputMediaPhoto`.
fh, fm, _ = await self._file_to_media(
file, supports_streaming=supports_streaming,
force_document=force_document, ttl=ttl,
progress_callback=used_callback)
if isinstance(fm, (types.InputMediaUploadedPhoto, types.InputMediaPhotoExternal)):
r = await self(functions.messages.UploadMediaRequest(
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entity, media=fm
))
fm = utils.get_input_media(r.photo)
elif isinstance(fm, types.InputMediaUploadedDocument):
r = await self(functions.messages.UploadMediaRequest(
entity, media=fm
))
fm = utils.get_input_media(
r.document, supports_streaming=supports_streaming)
if captions:
caption, msg_entities = captions.pop()
else:
caption, msg_entities = '', None
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media.append(types.InputSingleMedia(
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fm,
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message=caption,
entities=msg_entities
# random_id is autogenerated
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))
# Now we can construct the multi-media request
request = functions.messages.SendMultiMediaRequest(
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entity, reply_to_msg_id=reply_to, multi_media=media,
silent=silent, schedule_date=schedule, clear_draft=clear_draft,
background=background
)
result = await self(request)
random_ids = [m.random_id for m in media]
return self._get_response_message(random_ids, result, entity)
async def upload_file(
self: 'TelegramClient',
file: 'hints.FileLike',
*,
part_size_kb: float = None,
file_size: int = None,
file_name: str = None,
use_cache: type = None,
key: bytes = None,
iv: bytes = None,
progress_callback: 'hints.ProgressCallback' = None) -> 'types.TypeInputFile':
"""
Uploads a file to Telegram's servers, without sending it.
.. note::
Generally, you want to use `send_file` instead.
This method 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.
Arguments
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_size (`int`, optional):
The size of the file to be uploaded, which will be determined
automatically if not specified.
If the file size can't be determined beforehand, the entire
file will be read in-memory to find out how large it is.
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):
This parameter currently does nothing, but is kept for
backward-compatibility (and it may get its use back in
the future).
key ('bytes', optional):
In case of an encrypted upload (secret chats) a key is supplied
iv ('bytes', optional):
In case of an encrypted upload (secret chats) an iv is supplied
progress_callback (`callable`, optional):
A callback function accepting two parameters:
``(sent bytes, total)``.
When sending an album, the callback will receive a number
between 0 and the amount of files as the "sent" parameter,
and the amount of files as the "total". Note that the first
parameter will be a floating point number to indicate progress
within a file (e.g. ``2.5`` means it has sent 50% of the third
file, because it's between 2 and 3).
Returns
:tl:`InputFileBig` if the file size is larger than 10MB,
`InputSizedFile <telethon.tl.custom.inputsizedfile.InputSizedFile>`
(subclass of :tl:`InputFile`) otherwise.
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Example
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.. code-block:: python
# Photos as photo and document
file = await client.upload_file('photo.jpg')
await client.send_file(chat, file) # sends as photo
await client.send_file(chat, file, force_document=True) # sends as document
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file.name = 'not a photo.jpg'
await client.send_file(chat, file, force_document=True) # document, new name
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# As song or as voice note
file = await client.upload_file('song.ogg')
await client.send_file(chat, file) # sends as song
await client.send_file(chat, file, voice_note=True) # sends as voice note
"""
if isinstance(file, (types.InputFile, types.InputFileBig)):
return file # Already uploaded
pos = 0
async with helpers._FileStream(file, file_size=file_size) as stream:
# Opening the stream will determine the correct file size
file_size = stream.file_size
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:
file_name = stream.name or str(file_id)
# If the file name lacks extension, add it if possible.
# Else Telegram complains with `PHOTO_EXT_INVALID_ERROR`
# even if the uploaded image is indeed a photo.
if not os.path.splitext(file_name)[-1]:
file_name += utils._get_extension(stream)
# Determine whether the file is too big (over 10MB) or not
# Telegram does make a distinction between smaller or larger files
is_big = file_size > 10 * 1024 * 1024
hash_md5 = hashlib.md5()
part_count = (file_size + part_size - 1) // part_size
self._log[__name__].info('Uploading file of %d bytes in %d chunks of %d',
file_size, part_count, part_size)
pos = 0
for part_index in range(part_count):
# Read the file by in chunks of size part_size
part = await helpers._maybe_await(stream.read(part_size))
if not isinstance(part, bytes):
raise TypeError(
'file descriptor returned {}, not bytes (you must '
'open the file in bytes mode)'.format(type(part)))
# `file_size` could be wrong in which case `part` may not be
# `part_size` before reaching the end.
if len(part) != part_size and part_index < part_count - 1:
raise ValueError(
'read less than {} before reaching the end; either '
'`file_size` or `read` are wrong'.format(part_size))
pos += len(part)
# Encryption part if needed
if key and iv:
part = AES.encrypt_ige(part, key, iv)
if not is_big:
# Bit odd that MD5 is only needed for small files and not
# big ones with more chance for corruption, but that's
# what Telegram wants.
hash_md5.update(part)
# The SavePartRequest is different depending on whether
# the file is too large or not (over or less than 10MB)
if is_big:
request = functions.upload.SaveBigFilePartRequest(
file_id, part_index, part_count, part)
else:
request = functions.upload.SaveFilePartRequest(
file_id, part_index, part)
result = await self(request)
if result:
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self._log[__name__].debug('Uploaded %d/%d',
part_index + 1, part_count)
if progress_callback:
await helpers._maybe_await(progress_callback(pos, file_size))
else:
raise RuntimeError(
'Failed to upload file part {}.'.format(part_index))
if is_big:
return types.InputFileBig(file_id, part_count, file_name)
else:
return custom.InputSizedFile(
file_id, part_count, file_name, md5=hash_md5, size=file_size
)
# endregion
async def _file_to_media(
self, file, force_document=False, file_size=None,
progress_callback=None, attributes=None, thumb=None,
allow_cache=True, voice_note=False, video_note=False,
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supports_streaming=False, mime_type=None, as_image=None,
ttl=None):
if not file:
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return None, None, None
if isinstance(file, pathlib.Path):
file = str(file.absolute())
is_image = utils.is_image(file)
if as_image is None:
as_image = is_image and not force_document
# `aiofiles` do not base `io.IOBase` but do have `read`, so we
# just check for the read attribute to see if it's file-like.
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if not isinstance(file, (str, bytes, types.InputFile, types.InputFileBig))\
and not hasattr(file, 'read'):
# 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.
#
# We pass all attributes since these will be used if the user
# passed :tl:`InputFile`, and all information may be relevant.
try:
return (None, utils.get_input_media(
file,
is_photo=as_image,
attributes=attributes,
force_document=force_document,
voice_note=voice_note,
video_note=video_note,
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supports_streaming=supports_streaming,
ttl=ttl
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), as_image)
except TypeError:
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# Can't turn whatever was given into media
return None, None, as_image
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media = None
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file_handle = None
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if isinstance(file, (types.InputFile, types.InputFileBig)):
file_handle = file
elif not isinstance(file, str) or os.path.isfile(file):
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file_handle = await self.upload_file(
_resize_photo_if_needed(file, as_image),
file_size=file_size,
progress_callback=progress_callback
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)
elif re.match('https?://', file):
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if as_image:
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media = types.InputMediaPhotoExternal(file, ttl_seconds=ttl)
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else:
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media = types.InputMediaDocumentExternal(file, ttl_seconds=ttl)
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else:
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bot_file = utils.resolve_bot_file_id(file)
if bot_file:
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media = utils.get_input_media(bot_file, ttl=ttl)
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if media:
pass # Already have media, don't check the rest
elif not file_handle:
raise ValueError(
'Failed to convert {} to media. Not an existing file, '
'an HTTP URL or a valid bot-API-like file ID'.format(file)
)
elif as_image:
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media = types.InputMediaUploadedPhoto(file_handle, ttl_seconds=ttl)
else:
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attributes, mime_type = utils.get_attributes(
file,
mime_type=mime_type,
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attributes=attributes,
force_document=force_document and not is_image,
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voice_note=voice_note,
video_note=video_note,
supports_streaming=supports_streaming,
thumb=thumb
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)
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if not thumb:
thumb = None
else:
if isinstance(thumb, pathlib.Path):
thumb = str(thumb.absolute())
thumb = await self.upload_file(thumb, file_size=file_size)
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# setting `nosound_video` to `True` doesn't affect videos with sound
# instead it prevents sending silent videos as GIFs
nosound_video = True if mime_type.split("/")[0] == 'video' else None
media = types.InputMediaUploadedDocument(
file=file_handle,
mime_type=mime_type,
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attributes=attributes,
thumb=thumb,
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force_file=force_document and not is_image,
ttl_seconds=ttl,
nosound_video=nosound_video
)
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return file_handle, media, as_image
# endregion