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[youtube:tab] Ignore query when redirecting channel to playlist

Browse source 
and cleanup of related code
Closes #2046
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pukkandan 2021-12-19 08:35:59 +05:30
parent 940a67a3e2
commit 37e57a9fd4
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1 changed files with 44 additions and 44 deletions
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84
yt_dlp/extractor/youtube.py
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@ -4223,7 +4223,7 @@ def _real_extract(self, url):
info_dict['entries'] = self._smuggle_data(info_dict['entries'], smuggled_data) info_dict['entries'] = self._smuggle_data(info_dict['entries'], smuggled_data)
return info_dict return info_dict
_url_re = re.compile(r'(?P<pre>%s)(?(channel_type)(?P<tab>/\w+))?(?P<post>.*)$' % _VALID_URL) _URL_RE = re.compile(rf'(?P<pre>{_VALID_URL})(?(channel_type)(?P<tab>/\w+))?(?P<post>.*)$')
def __real_extract(self, url, smuggled_data): def __real_extract(self, url, smuggled_data):
item_id = self._match_id(url) item_id = self._match_id(url)
@ -4232,35 +4232,32 @@ def __real_extract(self, url, smuggled_data):
compat_opts = self.get_param('compat_opts', []) compat_opts = self.get_param('compat_opts', [])
def get_mobj(url): def get_mobj(url):
mobj = self._url_re.match(url).groupdict() mobj = self._URL_RE.match(url).groupdict()
mobj.update((k, '') for k, v in mobj.items() if v is None) mobj.update((k, '') for k, v in mobj.items() if v is None)
return mobj return mobj
mobj = get_mobj(url) mobj, redirect_warning = get_mobj(url), None
# Youtube returns incomplete data if tabname is not lower case # Youtube returns incomplete data if tabname is not lower case
pre, tab, post, is_channel = mobj['pre'], mobj['tab'].lower(), mobj['post'], not mobj['not_channel'] pre, tab, post, is_channel = mobj['pre'], mobj['tab'].lower(), mobj['post'], not mobj['not_channel']
if is_channel: if is_channel:
if smuggled_data.get('is_music_url'): if smuggled_data.get('is_music_url'):
if item_id[:2] == 'VL': if item_id[:2] == 'VL': # Youtube music VL channels have an equivalent playlist
# Youtube music VL channels have an equivalent playlist
item_id = item_id[2:] item_id = item_id[2:]
pre, tab, post, is_channel = 'https://www.youtube.com/playlist?list=%s' % item_id, '', '', False pre, tab, post, is_channel = f'https://www.youtube.com/playlist?list={item_id}', '', '', False
elif item_id[:2] == 'MP': elif item_id[:2] == 'MP': # Resolve albums (/[channel/browse]/MP...) to their equivalent playlist
# Resolve albums (/[channel/browse]/MP...) to their equivalent playlist
mdata = self._extract_tab_endpoint( mdata = self._extract_tab_endpoint(
'https://music.youtube.com/channel/%s' % item_id, item_id, default_client='web_music') f'https://music.youtube.com/channel/{item_id}', item_id, default_client='web_music')
murl = traverse_obj( murl = traverse_obj(mdata, ('microformat', 'microformatDataRenderer', 'urlCanonical'),
mdata, ('microformat', 'microformatDataRenderer', 'urlCanonical'), get_all=False, expected_type=compat_str) get_all=False, expected_type=compat_str)
if not murl: if not murl:
raise ExtractorError('Failed to resolve album to playlist.') raise ExtractorError('Failed to resolve album to playlist')
return self.url_result(murl, ie=YoutubeTabIE.ie_key()) return self.url_result(murl, ie=YoutubeTabIE.ie_key())
elif mobj['channel_type'] == 'browse': elif mobj['channel_type'] == 'browse': # Youtube music /browse/ should be changed to /channel/
# Youtube music /browse/ should be changed to /channel/ pre = f'https://www.youtube.com/channel/{item_id}'
pre = 'https://www.youtube.com/channel/%s' % item_id
if is_channel and not tab and 'no-youtube-channel-redirect' not in compat_opts: if is_channel and not tab and 'no-youtube-channel-redirect' not in compat_opts:
# Home URLs should redirect to /videos/ # Home URLs should redirect to /videos/
self.report_warning( redirect_warning = ('A channel/user page was given. All the channel\'s videos will be downloaded. '
'A channel/user page was given. All the channel\'s videos will be downloaded. '
'To download only the videos in the home page, add a "/featured" to the URL') 'To download only the videos in the home page, add a "/featured" to the URL')
tab = '/videos' tab = '/videos'
@ -4269,28 +4266,27 @@ def get_mobj(url):
# Handle both video/playlist URLs # Handle both video/playlist URLs
qs = parse_qs(url) qs = parse_qs(url)
video_id = qs.get('v', [None])[0] video_id, playlist_id = [qs.get(key, [None])[0] for key in ('v', 'list')]
playlist_id = qs.get('list', [None])[0]
if not video_id and mobj['not_channel'].startswith('watch'): if not video_id and mobj['not_channel'].startswith('watch'):
if not playlist_id: if not playlist_id:
# If there is neither video or playlist ids, youtube redirects to home page, which is undesirable # If there is neither video or playlist ids, youtube redirects to home page, which is undesirable
raise ExtractorError('Unable to recognize tab page') raise ExtractorError('Unable to recognize tab page')
# Common mistake: https://www.youtube.com/watch?list=playlist_id # Common mistake: https://www.youtube.com/watch?list=playlist_id
self.report_warning('A video URL was given without video ID. Trying to download playlist %s' % playlist_id) self.report_warning(f'A video URL was given without video ID. Trying to download playlist {playlist_id}')
url = 'https://www.youtube.com/playlist?list=%s' % playlist_id url = f'https://www.youtube.com/playlist?list={playlist_id}'
mobj = get_mobj(url) mobj = get_mobj(url)
if video_id and playlist_id: if video_id and playlist_id:
if self.get_param('noplaylist'): if self.get_param('noplaylist'):
self.to_screen('Downloading just video %s because of --no-playlist' % video_id) self.to_screen(f'Downloading just video {video_id} because of --no-playlist')
return self.url_result(f'https://www.youtube.com/watch?v={video_id}', ie=YoutubeIE.ie_key(), video_id=video_id) return self.url_result(f'https://www.youtube.com/watch?v={video_id}',
self.to_screen('Downloading playlist %s; add --no-playlist to just download video %s' % (playlist_id, video_id)) ie=YoutubeIE.ie_key(), video_id=video_id)
self.to_screen(f'Downloading playlist {playlist_id}; add --no-playlist to just download video {video_id}')
data, ytcfg = self._extract_data(url, item_id) data, ytcfg = self._extract_data(url, item_id)
tabs = try_get( tabs = traverse_obj(data, ('contents', 'twoColumnBrowseResultsRenderer', 'tabs'), expected_type=list)
data, lambda x: x['contents']['twoColumnBrowseResultsRenderer']['tabs'], list)
if tabs: if tabs:
selected_tab = self._extract_selected_tab(tabs) selected_tab = self._extract_selected_tab(tabs)
tab_name = selected_tab.get('title', '') tab_name = selected_tab.get('title', '')
@ -4299,41 +4295,45 @@ def get_mobj(url):
# Live tab should have redirected to the video # Live tab should have redirected to the video
raise ExtractorError('The channel is not currently live', expected=True) raise ExtractorError('The channel is not currently live', expected=True)
if mobj['tab'] == '/videos' and tab_name.lower() != mobj['tab'][1:]: if mobj['tab'] == '/videos' and tab_name.lower() != mobj['tab'][1:]:
redirect_warning = f'The URL does not have a {mobj["tab"][1:]} tab'
if not mobj['not_channel'] and item_id[:2] == 'UC': if not mobj['not_channel'] and item_id[:2] == 'UC':
# Topic channels don't have /videos. Use the equivalent playlist instead # Topic channels don't have /videos. Use the equivalent playlist instead
self.report_warning('The URL does not have a %s tab. Trying to redirect to playlist UU%s instead' % (mobj['tab'][1:], item_id[2:])) pl_id = f'UU{item_id[2:]}'
pl_id = 'UU%s' % item_id[2:] pl_url = f'https://www.youtube.com/playlist?list={pl_id}'
pl_url = 'https://www.youtube.com/playlist?list=%s%s' % (pl_id, mobj['post'])
try: try:
data, ytcfg, item_id, url = *self._extract_data(pl_url, pl_id, ytcfg=ytcfg, fatal=True), pl_id, pl_url data, ytcfg = self._extract_data(pl_url, pl_id, ytcfg=ytcfg, fatal=True)
except ExtractorError: except ExtractorError:
self.report_warning('The playlist gave error. Falling back to channel URL') redirect_warning += ' and the playlist redirect gave error'
else: else:
self.report_warning('The URL does not have a %s tab. %s is being downloaded instead' % (mobj['tab'][1:], tab_name)) item_id, url, tab_name = pl_id, pl_url, mobj['tab'][1:]
redirect_warning += f'. Redirecting to playlist {pl_id} instead'
if tab_name.lower() != mobj['tab'][1:]:
redirect_warning += f'. {tab_name} tab is being downloaded instead'
self.write_debug('Final URL: %s' % url) if redirect_warning:
self.report_warning(redirect_warning)
self.write_debug(f'Final URL: {url}')
# YouTube sometimes provides a button to reload playlist with unavailable videos. # YouTube sometimes provides a button to reload playlist with unavailable videos.
if 'no-youtube-unavailable-videos' not in compat_opts: if 'no-youtube-unavailable-videos' not in compat_opts:
data = self._reload_with_unavailable_videos(item_id, data, ytcfg) or data data = self._reload_with_unavailable_videos(item_id, data, ytcfg) or data
self._extract_and_report_alerts(data, only_once=True) self._extract_and_report_alerts(data, only_once=True)
tabs = try_get( tabs = traverse_obj(data, ('contents', 'twoColumnBrowseResultsRenderer', 'tabs'), expected_type=list)
data, lambda x: x['contents']['twoColumnBrowseResultsRenderer']['tabs'], list)
if tabs: if tabs:
return self._extract_from_tabs(item_id, ytcfg, data, tabs) return self._extract_from_tabs(item_id, ytcfg, data, tabs)
playlist = try_get( playlist = traverse_obj(
data, lambda x: x['contents']['twoColumnWatchNextResults']['playlist']['playlist'], dict) data, ('contents', 'twoColumnWatchNextResults', 'playlist', 'playlist'), expected_type=dict)
if playlist: if playlist:
return self._extract_from_playlist(item_id, url, data, playlist, ytcfg) return self._extract_from_playlist(item_id, url, data, playlist, ytcfg)
video_id = try_get( video_id = traverse_obj(
data, lambda x: x['currentVideoEndpoint']['watchEndpoint']['videoId'], data, ('currentVideoEndpoint', 'watchEndpoint', 'videoId'), expected_type=str) or video_id
compat_str) or video_id
if video_id: if video_id:
if mobj['tab'] != '/live': # live tab is expected to redirect to video if mobj['tab'] != '/live': # live tab is expected to redirect to video
self.report_warning('Unable to recognize playlist. Downloading just video %s' % video_id) self.report_warning(f'Unable to recognize playlist. Downloading just video {video_id}')
return self.url_result(f'https://www.youtube.com/watch?v={video_id}', ie=YoutubeIE.ie_key(), video_id=video_id) return self.url_result(f'https://www.youtube.com/watch?v={video_id}',
ie=YoutubeIE.ie_key(), video_id=video_id)
raise ExtractorError('Unable to recognize tab page') raise ExtractorError('Unable to recognize tab page')