import hashlib import io import itertools import os import pathlib import re import typing import inspect from io import BytesIO 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=1280, height=1280, 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) 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') 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, 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 = (), voice_note: bool = False, video_note: bool = False, buttons: 'hints.MarkupLike' = None, silent: bool = None, supports_streaming: bool = False, schedule: 'hints.DateLike' = 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`): 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`). 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. progress_callback (`callable`, optional): A callback function accepting two parameters: ``(sent bytes, total)``. reply_to (`int` | `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 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 200x200px. Width/height and dimensions/size ratios may be important. 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 ` property for allowed values. Markdown parsing will be used by default. 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. buttons (`list`, `custom.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. 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``. 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. Returns The `Message ` (or messages) containing the sent file, or messages if a list of them was passed. Example .. code-block:: python # Normal files like photos await client.send_file(chat, '/my/photos/me.jpg', caption="It's me!") # or await client.send_message(chat, "It's me!", file='/my/photos/me.jpg') # 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) # Custom thumbnails await client.send_file(chat, '/my/documents/doc.txt', thumb='photo.jpg') # Only documents await client.send_file(chat, '/my/photos/photo.png', force_document=True) # Albums await client.send_file(chat, [ '/my/photos/holiday1.jpg', '/my/photos/holiday2.jpg', '/my/drawings/portrait.png' ]) """ # 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 = '' # 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): image_captions = [] document_captions = [] if utils.is_list_like(caption): captions = caption else: captions = [caption] # TODO Fix progress_callback images = [] if force_document: documents = file else: documents = [] for doc, cap in itertools.zip_longest(file, captions): if utils.is_image(doc): images.append(doc) image_captions.append(cap) else: documents.append(doc) document_captions.append(cap) result = [] while images: result += await self._send_album( entity, images[:10], caption=image_captions[:10], progress_callback=progress_callback, reply_to=reply_to, parse_mode=parse_mode, silent=silent, schedule=schedule ) images = images[10:] image_captions = image_captions[10:] for doc, cap in zip(documents, captions): result.append(await self.send_file( entity, doc, allow_cache=allow_cache, caption=cap, force_document=force_document, progress_callback=progress_callback, reply_to=reply_to, attributes=attributes, thumb=thumb, voice_note=voice_note, video_note=video_note, buttons=buttons, silent=silent, supports_streaming=supports_streaming, schedule=schedule, **kwargs )) return result entity = await self.get_input_entity(entity) reply_to = utils.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) file_handle, media, image = await self._file_to_media( file, force_document=force_document, progress_callback=progress_callback, attributes=attributes, allow_cache=allow_cache, thumb=thumb, voice_note=voice_note, video_note=video_note, supports_streaming=supports_streaming ) # e.g. invalid cast from :tl:`MessageMediaWebPage` if not media: raise TypeError('Cannot use {!r} as file'.format(file)) markup = self.build_reply_markup(buttons) request = functions.messages.SendMediaRequest( entity, media, reply_to_msg_id=reply_to, message=caption, entities=msg_entities, reply_markup=markup, silent=silent, schedule_date=schedule ) msg = self._get_response_message(request, await self(request), entity) await self._cache_media(msg, file, file_handle, image=image) return msg async def _send_album(self: 'TelegramClient', entity, files, caption='', progress_callback=None, reply_to=None, parse_mode=(), silent=None, schedule=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,) 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) # Need to upload the media first, but only if they're not cached yet media = [] for file in files: # 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) if isinstance(fm, types.InputMediaUploadedPhoto): r = await self(functions.messages.UploadMediaRequest( entity, media=fm )) self.session.cache_file( fh.md5, fh.size, utils.get_input_photo(r.photo)) fm = utils.get_input_media(r.photo) if captions: caption, msg_entities = captions.pop() else: caption, msg_entities = '', None media.append(types.InputSingleMedia( fm, message=caption, entities=msg_entities )) # Now we can construct the multi-media request result = await self(functions.messages.SendMultiMediaRequest( entity, reply_to_msg_id=reply_to, multi_media=media, silent=silent, schedule_date=schedule )) # We never sent a `random_id` for the messages that resulted from # the request so we can't pair them up with the `Updates` that we # get from Telegram. However, the sent messages have a photo and # the photo IDs match with those we did send. # # Updates -> {_: message} messages = self._get_response_message(None, result, entity) # {_: message} -> {photo ID: message} messages = {m.photo.id: m for m in messages.values()} # Sent photo IDs -> messages return [messages[m.media.id.id] for m in media] async def upload_file( self: 'TelegramClient', file: 'hints.FileLike', *, part_size_kb: float = None, file_name: str = None, use_cache: type = None, progress_callback: 'hints.ProgressCallback' = None) -> 'types.TypeInputFile': """ Uploads a file to Telegram's servers, without sending it. 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_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). progress_callback (`callable`, optional): A callback function accepting two parameters: ``(sent bytes, total)``. Returns :tl:`InputFileBig` if the file size is larger than 10MB, `InputSizedFile ` (subclass of :tl:`InputFile`) otherwise. Example .. 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 file.name = 'not a photo.jpg' await client.send_file(chat, file, force_document=True) # document, new name # 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 if not file_name and getattr(file, 'name', None): file_name = file.name if isinstance(file, str): file_size = os.path.getsize(file) elif isinstance(file, bytes): file_size = len(file) else: if isinstance(file, io.IOBase) and file.seekable(): pos = file.tell() else: pos = None # TODO Don't load the entire file in memory always data = file.read() if pos is not None: file.seek(pos) file = data 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) # 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(file) # 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) 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) 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 = 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: self._log[__name__].debug('Uploaded %d/%d', part_index + 1, part_count) if progress_callback: r = progress_callback(stream.tell(), file_size) if inspect.isawaitable(r): await r else: raise RuntimeError( 'Failed to upload file part {}.'.format(part_index)) if is_large: 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, progress_callback=None, attributes=None, thumb=None, allow_cache=True, voice_note=False, video_note=False, supports_streaming=False, mime_type=None, as_image=None): if not file: return None, None, None if isinstance(file, pathlib.Path): file = str(file.absolute()) if as_image is None: as_image = utils.is_image(file) and not force_document 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. # # 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, supports_streaming=supports_streaming ), as_image) except TypeError: # Can't turn whatever was given into media return None, None, as_image media = None file_handle = None if not isinstance(file, str) or os.path.isfile(file): file_handle = await self.upload_file( _resize_photo_if_needed(file, as_image), progress_callback=progress_callback ) elif re.match('https?://', file): if as_image: media = types.InputMediaPhotoExternal(file) elif not force_document and utils.is_gif(file): media = types.InputMediaGifExternal(file, '') else: media = types.InputMediaDocumentExternal(file) else: bot_file = utils.resolve_bot_file_id(file) if bot_file: media = utils.get_input_media(bot_file) 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: media = types.InputMediaUploadedPhoto(file_handle) else: attributes, mime_type = utils.get_attributes( file, mime_type=mime_type, attributes=attributes, force_document=force_document, voice_note=voice_note, video_note=video_note, supports_streaming=supports_streaming ) input_kw = {} if thumb: if isinstance(thumb, pathlib.Path): thumb = str(thumb.absolute()) input_kw['thumb'] = await self.upload_file(thumb) media = types.InputMediaUploadedDocument( file=file_handle, mime_type=mime_type, attributes=attributes, **input_kw ) return file_handle, media, as_image async def _cache_media(self: 'TelegramClient', msg, file, file_handle, image): if file and msg and isinstance(file_handle, custom.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 image: to_cache = utils.get_input_photo(msg.media.photo) else: to_cache = utils.get_input_document(msg.media.document) self.session.cache_file(md5, size, to_cache) # endregion