79 lines
2.9 KiB
Python
79 lines
2.9 KiB
Python
#!/usr/bin/env python3
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import logging
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import tempfile
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from pathlib import Path
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from typing import Callable, Optional
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import yt_dlp
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from praw.models import Submission
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from bdfr.exceptions import NotADownloadableLinkError, SiteDownloaderError
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from bdfr.resource import Resource
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from bdfr.site_authenticator import SiteAuthenticator
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from bdfr.site_downloaders.base_downloader import BaseDownloader
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logger = logging.getLogger(__name__)
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class Youtube(BaseDownloader):
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def __init__(self, post: Submission):
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super().__init__(post)
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def find_resources(self, authenticator: Optional[SiteAuthenticator] = None) -> list[Resource]:
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ytdl_options = {
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'format': 'best',
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'playlistend': 1,
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'nooverwrites': True,
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}
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download_function = self._download_video(ytdl_options)
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extension = self.get_video_attributes(self.post.url)['ext']
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res = Resource(self.post, self.post.url, download_function, extension)
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return [res]
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def _download_video(self, ytdl_options: dict) -> Callable:
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yt_logger = logging.getLogger('youtube-dl')
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yt_logger.setLevel(logging.CRITICAL)
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ytdl_options['quiet'] = True
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ytdl_options['logger'] = yt_logger
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def download(_: dict) -> bytes:
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with tempfile.TemporaryDirectory() as temp_dir:
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download_path = Path(temp_dir).resolve()
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ytdl_options['outtmpl'] = str(download_path) + '/' + 'test.%(ext)s'
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try:
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with yt_dlp.YoutubeDL(ytdl_options) as ydl:
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ydl.download([self.post.url])
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except yt_dlp.DownloadError as e:
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raise SiteDownloaderError(f'Youtube download failed: {e}')
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downloaded_files = list(download_path.iterdir())
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if len(downloaded_files) > 0:
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downloaded_file = downloaded_files[0]
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else:
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raise NotADownloadableLinkError(f"No media exists in the URL {self.post.url}")
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with open(downloaded_file, 'rb') as file:
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content = file.read()
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return content
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return download
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@staticmethod
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def get_video_data(url: str) -> dict:
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yt_logger = logging.getLogger('youtube-dl')
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yt_logger.setLevel(logging.CRITICAL)
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with yt_dlp.YoutubeDL({'logger': yt_logger, }) as ydl:
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try:
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result = ydl.extract_info(url, download=False)
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except Exception as e:
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logger.exception(e)
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raise NotADownloadableLinkError(f'Video info extraction failed for {url}')
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return result
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@staticmethod
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def get_video_attributes(url: str) -> dict:
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result = Youtube.get_video_data(url)
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if 'ext' in result:
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return result
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else:
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raise NotADownloadableLinkError(f'Video info extraction failed for {url}')
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