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[YouTube] Fix n-sig for player e06dea74 (#30582)

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From yt-dl commit 48416bc
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dirkf 2022-02-01 14:39:03 +00:00 • committed by GitHub
parent af9e72507e
commit 1e677567cd
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2 changed files with 28 additions and 10 deletions
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14
youtube_dl/extractor/youtube.py
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@ -28,6 +28,7 @@ from ..utils import (
dict_get,
float_or_none,
int_or_none,
js_to_json,
mimetype2ext,
parse_codecs,
parse_duration,
@ -1391,9 +1392,16 @@ 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):
return self._search_regex(
(r'\.get\("n"\)\)&&\(b=(?P<nfunc>[a-zA-Z0-9$]{3})\([a-zA-Z0-9]\)',),
jscode, 'Initial JS player n function name', group='nfunc')
target = r'(?P<nfunc>[a-zA-Z0-9$]{3})(?:\[(?P<idx>\d+)\])?'
nfunc_and_idx = self._search_regex(
r'\.get\("n"\)\)&&\(b=(%s)\([a-zA-Z0-9]\)' % (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,
'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):
player_id = self._extract_player_info(player_url)