167 lines
6.6 KiB
Python
167 lines
6.6 KiB
Python
# Pyrogram - Telegram MTProto API Client Library for Python
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# Copyright (C) 2017-present Dan <https://github.com/delivrance>
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#
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# This file is part of Pyrogram.
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#
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# Pyrogram is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Pyrogram is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.
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import asyncio
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import os
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import time
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from datetime import datetime
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from typing import Union, Optional
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from pyrogram import types
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from pyrogram.file_id import FileId, FileType, PHOTO_TYPES
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from pyrogram.scaffold import Scaffold
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DEFAULT_DOWNLOAD_DIR = "downloads/"
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class DownloadMedia(Scaffold):
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async def download_media(
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self,
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message: Union["types.Message", str],
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file_name: str = DEFAULT_DOWNLOAD_DIR,
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block: bool = True,
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progress: callable = None,
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progress_args: tuple = ()
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) -> Optional[str]:
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"""Download the media from a message.
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Parameters:
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message (:obj:`~pyrogram.types.Message` | ``str``):
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Pass a Message containing the media, the media itself (message.audio, message.video, ...) or a file id
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as string.
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file_name (``str``, *optional*):
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A custom *file_name* to be used instead of the one provided by Telegram.
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By default, all files are downloaded in the *downloads* folder in your working directory.
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You can also specify a path for downloading files in a custom location: paths that end with "/"
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are considered directories. All non-existent folders will be created automatically.
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block (``bool``, *optional*):
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Blocks the code execution until the file has been downloaded.
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Defaults to True.
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progress (``callable``, *optional*):
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Pass a callback function to view the file transmission progress.
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The function must take *(current, total)* as positional arguments (look at Other Parameters below for a
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detailed description) and will be called back each time a new file chunk has been successfully
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transmitted.
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progress_args (``tuple``, *optional*):
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Extra custom arguments for the progress callback function.
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You can pass anything you need to be available in the progress callback scope; for example, a Message
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object or a Client instance in order to edit the message with the updated progress status.
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Other Parameters:
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current (``int``):
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The amount of bytes transmitted so far.
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total (``int``):
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The total size of the file.
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*args (``tuple``, *optional*):
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Extra custom arguments as defined in the ``progress_args`` parameter.
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You can either keep ``*args`` or add every single extra argument in your function signature.
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Returns:
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``str`` | ``None``: On success, the absolute path of the downloaded file is returned, otherwise, in case
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the download failed or was deliberately stopped with :meth:`~pyrogram.Client.stop_transmission`, None is
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returned.
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Raises:
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ValueError: if the message doesn't contain any downloadable media
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Example:
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.. code-block:: python
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# Download from Message
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app.download_media(message)
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# Download from file id
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app.download_media(message.photo.file_id)
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# Keep track of the progress while downloading
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def progress(current, total):
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print(f"{current * 100 / total:.1f}%")
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app.download_media(message, progress=progress)
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"""
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available_media = ("audio", "document", "photo", "sticker", "animation", "video", "voice", "video_note",
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"new_chat_photo")
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if isinstance(message, types.Message):
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for kind in available_media:
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media = getattr(message, kind, None)
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if media is not None:
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break
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else:
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raise ValueError("This message doesn't contain any downloadable media")
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else:
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media = message
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if isinstance(media, str):
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file_id_str = media
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else:
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file_id_str = media.file_id
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file_id_obj = FileId.decode(file_id_str)
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file_type = file_id_obj.file_type
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media_file_name = getattr(media, "file_name", "")
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file_size = getattr(media, "file_size", 0)
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mime_type = getattr(media, "mime_type", "")
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date = getattr(media, "date", 0)
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directory, file_name = os.path.split(file_name)
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file_name = file_name or media_file_name or ""
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if not os.path.isabs(file_name):
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directory = self.PARENT_DIR / (directory or DEFAULT_DOWNLOAD_DIR)
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if not file_name:
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guessed_extension = self.guess_extension(mime_type)
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if file_type in PHOTO_TYPES:
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extension = ".jpg"
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elif file_type == FileType.VOICE:
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extension = guessed_extension or ".ogg"
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elif file_type in (FileType.VIDEO, FileType.ANIMATION, FileType.VIDEO_NOTE):
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extension = guessed_extension or ".mp4"
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elif file_type == FileType.DOCUMENT:
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extension = guessed_extension or ".zip"
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elif file_type == FileType.STICKER:
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extension = guessed_extension or ".webp"
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elif file_type == FileType.AUDIO:
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extension = guessed_extension or ".mp3"
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else:
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extension = ".unknown"
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file_name = "{}_{}_{}{}".format(
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FileType(file_id_obj.file_type).name.lower(),
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datetime.fromtimestamp(date or time.time()).strftime("%Y-%m-%d_%H-%M-%S"),
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self.rnd_id(),
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extension
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)
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downloader = self.handle_download((file_id_obj, directory, file_name, file_size, progress, progress_args))
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if block:
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return await downloader
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else:
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asyncio.get_event_loop().create_task(downloader)
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