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[Youtube] Fix "n" descrambling for player fae06c11

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Resolves #30856.
This commit is contained in:
dirkf 2022-04-15 16:07:09 +01:00
parent b764dbe773
commit a0068bd6be
1 changed files with 3 additions and 3 deletions
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6
youtube_dl/extractor/youtube.py
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@ -1464,15 +1464,15 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
# 2. https://code.videolan.org/videolan/vlc/-/blob/4fb284e5af69aa9ac2100ccbdd3b88debec9987f/share/lua/playlist/youtube.lua#L116
# 3. https://github.com/ytdl-org/youtube-dl/issues/30097#issuecomment-950157377
def _extract_n_function_name(self, jscode):
target = r'(?P<nfunc>[a-zA-Z0-9$]{3})(?:\[(?P<idx>\d+)\])?'
target = r'(?P<nfunc>[a-zA-Z_$][\w$]*)(?:\[(?P<idx>\d+)\])?'
nfunc_and_idx = self._search_regex(
r'\.get\("n"\)\)&&\(b=(%s)\([a-zA-Z0-9]\)' % (target, ),
r'\.get\("n"\)\)&&\(b=(%s)\([\w$]+\)' % (target, ),
jscode, 'Initial JS player n function name')
nfunc, idx = re.match(target, nfunc_and_idx).group('nfunc', 'idx')
if not idx:
return nfunc
return self._parse_json(self._search_regex(
r'var %s\s*=\s*(\[.+?\]);' % (nfunc, ), jscode,
r'var %s\s*=\s*(\[.+?\]);' % (re.escape(nfunc), ), jscode,
'Initial JS player n function list ({nfunc}[{idx}])'.format(**locals())), nfunc, transform_source=js_to_json)[int(idx)]
def _extract_n_function(self, video_id, player_url):