[InfoExtractor] Misc yt-dlp back-ports, etc

* add _yes_playlist() method
* avoid crash using _NETRC_MACHINE
* use _search_json() in _search_nextjs_data()
* _search_nextjs_data() default is JSON, not text
* test for above
This commit is contained in:
dirkf 2024-04-26 18:57:44 +01:00
parent 768ccccd9b
commit 21924742f7
2 changed files with 50 additions and 16 deletions

View File

@ -153,6 +153,9 @@ class TestInfoExtractor(unittest.TestCase):
'''
search = self.ie._search_nextjs_data(html, 'testID')
self.assertEqual(search['props']['pageProps']['video']['id'], 'testid')
search = self.ie._search_nextjs_data(
'no next.js data here, move along', 'testID', default={'status': 0})
self.assertEqual(search['status'], 0)
def test_search_nuxt_data(self):
html = '''

View File

@ -1169,10 +1169,10 @@ class InfoExtractor(object):
def _get_netrc_login_info(self, netrc_machine=None):
username = None
password = None
netrc_machine = netrc_machine or self._NETRC_MACHINE
if self._downloader.params.get('usenetrc', False):
try:
netrc_machine = netrc_machine or self._NETRC_MACHINE
info = netrc.netrc().authenticators(netrc_machine)
if info is not None:
username = info[0]
@ -1180,7 +1180,7 @@ class InfoExtractor(object):
else:
raise netrc.NetrcParseError(
'No authenticators for %s' % netrc_machine)
except (IOError, netrc.NetrcParseError) as err:
except (AttributeError, IOError, netrc.NetrcParseError) as err:
self._downloader.report_warning(
'parsing .netrc: %s' % error_to_compat_str(err))
@ -1490,14 +1490,18 @@ class InfoExtractor(object):
return dict((k, v) for k, v in info.items() if v is not None)
def _search_nextjs_data(self, webpage, video_id, **kw):
nkw = dict((k, v) for k, v in kw.items() if k in ('transform_source', 'fatal'))
kw.pop('transform_source', None)
next_data = self._search_regex(
r'''<script[^>]+\bid\s*=\s*('|")__NEXT_DATA__\1[^>]*>(?P<nd>[^<]+)</script>''',
webpage, 'next.js data', group='nd', **kw)
if not next_data:
return {}
return self._parse_json(next_data, video_id, **nkw)
# ..., *, transform_source=None, fatal=True, default=NO_DEFAULT
# TODO: remove this backward compat
default = kw.get('default', NO_DEFAULT)
if default == '{}':
kw['default'] = {}
kw = compat_kwargs(kw)
return self._search_json(
r'''<script\s[^>]*?\bid\s*=\s*('|")__NEXT_DATA__\1[^>]*>''',
webpage, 'next.js data', video_id, end_pattern='</script>',
**kw)
def _search_nuxt_data(self, webpage, video_id, *args, **kwargs):
"""Parses Nuxt.js metadata. This works as long as the function __NUXT__ invokes is a pure function"""
@ -3296,12 +3300,16 @@ class InfoExtractor(object):
return ret
@classmethod
def _merge_subtitles(cls, subtitle_dict1, subtitle_dict2):
""" Merge two subtitle dictionaries, language by language. """
ret = dict(subtitle_dict1)
for lang in subtitle_dict2:
ret[lang] = cls._merge_subtitle_items(subtitle_dict1.get(lang, []), subtitle_dict2[lang])
return ret
def _merge_subtitles(cls, subtitle_dict1, *subtitle_dicts, **kwargs):
""" Merge subtitle dictionaries, language by language. """
# ..., * , target=None
target = kwargs.get('target') or dict(subtitle_dict1)
for subtitle_dict in subtitle_dicts:
for lang in subtitle_dict:
target[lang] = cls._merge_subtitle_items(target.get(lang, []), subtitle_dict[lang])
return target
def extract_automatic_captions(self, *args, **kwargs):
if (self._downloader.params.get('writeautomaticsub', False)
@ -3334,6 +3342,29 @@ class InfoExtractor(object):
def _generic_title(self, url):
return compat_urllib_parse_unquote(os.path.splitext(url_basename(url))[0])
def _yes_playlist(self, playlist_id, video_id, *args, **kwargs):
# smuggled_data=None, *, playlist_label='playlist', video_label='video'
smuggled_data = args[0] if len(args) == 1 else kwargs.get('smuggled_data')
playlist_label = kwargs.get('playlist_label', 'playlist')
video_label = kwargs.get('video_label', 'video')
if not playlist_id or not video_id:
return not video_id
no_playlist = (smuggled_data or {}).get('force_noplaylist')
if no_playlist is not None:
return not no_playlist
video_id = '' if video_id is True else ' ' + video_id
noplaylist = self.get_param('noplaylist')
self.to_screen(
'Downloading just the {0}{1} because of --no-playlist'.format(video_label, video_id)
if noplaylist else
'Downloading {0}{1} - add --no-playlist to download just the {2}{3}'.format(
playlist_label, '' if playlist_id is True else ' ' + playlist_id,
video_label, video_id))
return not noplaylist
class SearchInfoExtractor(InfoExtractor):
"""