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[ie/youtube] Fix JS n function name extraction (#10390)

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Fixes nsig decoding for player b22ef6e7

Closes #10391
Authored by: bashonly, seproDev

Co-authored-by: sepro <4618135+seproDev@users.noreply.github.com>
This commit is contained in:
bashonly
2024-07-08 17:04:48 -05:00
committed by GitHub
parent 6c056ea7ae
commit 297b0a3792
2 changed files with 6 additions and 1 deletions
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yt_dlp/extractor/youtube.py
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@@ -3130,7 +3130,8 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
def _extract_n_function_name(self, jscode):
funcname, idx = self._search_regex(
r'\.get\("n"\)\)&&\(b=(?P<nfunc>[a-zA-Z0-9$]+)(?:\[(?P<idx>\d+)\])?\([a-zA-Z0-9]\)',
r'''(?x)(?:\.get\("n"\)\)&&\(b=|b=String\.fromCharCode\(110\),c=a\.get\(b\)\)&&\(c=)
(?P<nfunc>[a-zA-Z0-9$]+)(?:\[(?P<idx>\d+)\])?\([a-zA-Z0-9]\)''',
jscode, 'Initial JS player n function name', group=('nfunc', 'idx'))
if not idx:
return funcname