177 lines
6.7 KiB
Python
177 lines
6.7 KiB
Python
# Pyrogram - Telegram MTProto API Client Library for Python
|
|
# Copyright (C) 2017-2019 Dan Tès <https://github.com/delivrance>
|
|
#
|
|
# This file is part of Pyrogram.
|
|
#
|
|
# Pyrogram is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU Lesser General Public License as published
|
|
# by the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# Pyrogram is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU Lesser General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Lesser General Public License
|
|
# along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
import binascii
|
|
import struct
|
|
from threading import Event
|
|
from typing import Union
|
|
|
|
import pyrogram
|
|
from pyrogram.client.ext import BaseClient, FileData, utils
|
|
from pyrogram.errors import FileIdInvalid
|
|
|
|
|
|
class DownloadMedia(BaseClient):
|
|
def download_media(
|
|
self,
|
|
message: Union["pyrogram.Message", str],
|
|
file_name: str = "",
|
|
block: bool = True,
|
|
progress: callable = None,
|
|
progress_args: tuple = ()
|
|
) -> Union[str, None]:
|
|
"""Download the media from a message.
|
|
|
|
Parameters:
|
|
message (:obj:`Message` | ``str``):
|
|
Pass a Message containing the media, the media itself (message.audio, message.video, ...) or
|
|
the file id as string.
|
|
|
|
file_name (``str``, *optional*):
|
|
A custom *file_name* to be used instead of the one provided by Telegram.
|
|
By default, all files are downloaded in the *downloads* folder in your working directory.
|
|
You can also specify a path for downloading files in a custom location: paths that end with "/"
|
|
are considered directories. All non-existent folders will be created automatically.
|
|
|
|
block (``bool``, *optional*):
|
|
Blocks the code execution until the file has been downloaded.
|
|
Defaults to True.
|
|
|
|
progress (``callable``):
|
|
Pass a callback function to view the download progress.
|
|
The function must take *(client, current, total, \*args)* as positional arguments (look at the section
|
|
below for a detailed description).
|
|
|
|
progress_args (``tuple``):
|
|
Extra custom arguments for the progress callback function. Useful, for example, if you want to pass
|
|
a chat_id and a message_id in order to edit a message with the updated progress.
|
|
|
|
Other Parameters:
|
|
client (:obj:`Client`):
|
|
The Client itself, useful when you want to call other API methods inside the callback function.
|
|
|
|
current (``int``):
|
|
The amount of bytes downloaded so far.
|
|
|
|
total (``int``):
|
|
The size of the file.
|
|
|
|
*args (``tuple``, *optional*):
|
|
Extra custom arguments as defined in the *progress_args* parameter.
|
|
You can either keep *\*args* or add every single extra argument in your function signature.
|
|
|
|
Returns:
|
|
``str`` | ``None``: On success, the absolute path of the downloaded file is returned, otherwise, in case
|
|
the download failed or was deliberately stopped with :meth:`~Client.stop_transmission`, None is returned.
|
|
|
|
Raises:
|
|
RPCError: In case of a Telegram RPC error.
|
|
``ValueError`` if the message doesn't contain any downloadable media
|
|
"""
|
|
error_message = "This message doesn't contain any downloadable media"
|
|
available_media = ("audio", "document", "photo", "sticker", "animation", "video", "voice", "video_note")
|
|
|
|
file_size = None
|
|
mime_type = None
|
|
date = None
|
|
|
|
if isinstance(message, pyrogram.Message):
|
|
for kind in available_media:
|
|
media = getattr(message, kind, None)
|
|
|
|
if media is not None:
|
|
break
|
|
else:
|
|
raise ValueError(error_message)
|
|
else:
|
|
media = message
|
|
|
|
if isinstance(media, str):
|
|
file_id_str = media
|
|
else:
|
|
file_id_str = media.file_id
|
|
file_name = getattr(media, "file_name", "")
|
|
file_size = getattr(media, "file_size", None)
|
|
mime_type = getattr(media, "mime_type", None)
|
|
date = getattr(media, "date", None)
|
|
|
|
data = FileData(
|
|
file_name=file_name,
|
|
file_size=file_size,
|
|
mime_type=mime_type,
|
|
date=date
|
|
)
|
|
|
|
def get_existing_attributes() -> dict:
|
|
return dict(filter(lambda x: x[1] is not None, data.__dict__.items()))
|
|
|
|
try:
|
|
decoded = utils.decode(file_id_str)
|
|
media_type = decoded[0]
|
|
|
|
if media_type == 1:
|
|
unpacked = struct.unpack("<iiqqib", decoded)
|
|
dc_id, peer_id, volume_id, local_id, is_big = unpacked[1:]
|
|
|
|
data = FileData(
|
|
**get_existing_attributes(),
|
|
media_type=media_type,
|
|
dc_id=dc_id,
|
|
peer_id=peer_id,
|
|
volume_id=volume_id,
|
|
local_id=local_id,
|
|
is_big=bool(is_big)
|
|
)
|
|
elif media_type in (0, 2, 14):
|
|
unpacked = struct.unpack("<iiqqc", decoded)
|
|
dc_id, document_id, access_hash, thumb_size = unpacked[1:]
|
|
|
|
data = FileData(
|
|
**get_existing_attributes(),
|
|
media_type=media_type,
|
|
dc_id=dc_id,
|
|
document_id=document_id,
|
|
access_hash=access_hash,
|
|
thumb_size=thumb_size.decode()
|
|
)
|
|
elif media_type in (3, 4, 5, 8, 9, 10, 13):
|
|
unpacked = struct.unpack("<iiqq", decoded)
|
|
dc_id, document_id, access_hash = unpacked[1:]
|
|
|
|
data = FileData(
|
|
**get_existing_attributes(),
|
|
media_type=media_type,
|
|
dc_id=dc_id,
|
|
document_id=document_id,
|
|
access_hash=access_hash
|
|
)
|
|
else:
|
|
raise ValueError("Unknown media type: {}".format(file_id_str))
|
|
except (AssertionError, binascii.Error, struct.error):
|
|
raise FileIdInvalid from None
|
|
|
|
done = Event()
|
|
path = [None]
|
|
|
|
self.download_queue.put((data, file_name, done, progress, progress_args, path))
|
|
|
|
if block:
|
|
done.wait()
|
|
|
|
return path[0]
|