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fix to 'Unable to extract nsig jsi ... #32842'

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thanks to @Duster98 #issuecomment-2220376175
This commit is contained in:
tansy 2024-07-10 17:25:53 +00:00
commit e76b077ed0
1 changed files with 13 additions and 5 deletions
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18
youtube_dl/extractor/youtube.py
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@ -1658,8 +1658,9 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
def _extract_n_function_name(self, jscode): def _extract_n_function_name(self, jscode):
func_name, idx = self._search_regex( func_name, idx = self._search_regex(
r'\.get\("n"\)\)&&\(b=(?P<nfunc>[a-zA-Z_$][\w$]*)(?:\[(?P<idx>\d+)\])?\([\w$]+\)', r'\.get\(b\)\)&&\(c=(?P<nfunc>[a-zA-Z_$][\w$]*)(?:\[(?P<idx>\d+)\])?\([\w$]+\)',
jscode, 'Initial JS player n function name', group=('nfunc', 'idx')) jscode, 'Initial JS player n function name', group=('nfunc', 'idx'))
if not idx: if not idx:
return func_name return func_name
@ -1679,12 +1680,19 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
func_name = self._extract_n_function_name(jscode) func_name = self._extract_n_function_name(jscode)
# For redundancy
func_code = self._search_regex( func_code = self._search_regex(
r'''(?xs)%s\s*=\s*function\s*\((?P<var>[\w$]+)\)\s* r'''(?xs)%s\s*=\s*function\s*\((?P<var>[\w$]+)\)\s*{(?P<code>.+?}\s*return\ Array\.prototype\.join\.call\([\w$]+,\s*""\))};''' % func_name,
# NB: The end of the regex is intentionally kept strict
{(?P<code>.+?}\s*return\ [\w$]+.join\(""\))};''' % func_name,
jscode, 'nsig function', group=('var', 'code'), default=None) jscode, 'nsig function', group=('var', 'code'), default=None)
var_name = ''
match_var = re.search(r'var (\w+)=String\.prototype\.split\.call', func_code[1])
if match_var:
var_name = match_var.group(1)
temp_func_code = func_code[1].replace('String.prototype.split.call(a,"")', func_code[0] + '.split(\'\')')
temp_func_code = temp_func_code.replace('Array.prototype.join.call(' + var_name + ',"")', var_name + '.join(\'\')')
func_code = (func_code[0], temp_func_code)
if func_code: if func_code:
func_code = ([func_code[0]], func_code[1]) func_code = ([func_code[0]], func_code[1])
else: else: