- player_id = ('nsig', player_url)
- if player_id not in self._player_cache:
- self._player_cache[player_id] = self._extract_n_function(video_id, player_url)
- func = self._player_cache[player_id]
- self._player_cache[sig_id] = func(s)
- self.write_debug(f'Decrypted nsig {s} => {self._player_cache[sig_id]}')
- return self._player_cache[sig_id]
- except Exception as e:
- raise ExtractorError(traceback.format_exc(), cause=e, video_id=video_id)
+ extract_nsig = self._cached(self._extract_n_function_from_code, 'nsig func', player_url)
+ ret = extract_nsig(jsi, func_code)(s)
+ except JSInterpreter.Exception as e:
+ try:
+ jsi = PhantomJSwrapper(self, timeout=5000)
+ except ExtractorError:
+ raise e
+ self.report_warning(
+ f'Native nsig extraction failed: Trying with PhantomJS\n'
+ f' n = {s} ; player = {player_url}', video_id)
+ self.write_debug(e)
+
+ args, func_body = func_code
+ ret = jsi.execute(
+ f'console.log(function({", ".join(args)}) {{ {func_body} }}({s!r}));',
+ video_id=video_id, note='Executing signature code').strip()
+
+ self.write_debug(f'Decrypted nsig {s} => {ret}')
+ return ret