[ie/youtube] Fix n function name extraction for player 3400486c (y…

…t-dlp#10542) Authored by: bashonly
nicolaasjan · Jul 23, 2024 · 713b4cd · 713b4cd
1 parent a3bab47
commit 713b4cd
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diff --git a/test/test_youtube_signature.py b/test/test_youtube_signature.py
@@ -171,6 +171,10 @@
         'https://www.youtube.com/s/player/b22ef6e7/player_ias.vflset/en_US/base.js',
         'b6HcntHGkvBLk_FRf', 'kNPW6A7FyP2l8A',
     ),
+    (
+        'https://www.youtube.com/s/player/3400486c/player_ias.vflset/en_US/base.js',
+        'lL46g3XifCKUZn1Xfw', 'z767lhet6V2Skl',
+    ),
 ]
 
 

diff --git a/yt_dlp/extractor/youtube.py b/yt_dlp/extractor/youtube.py
@@ -3131,7 +3131,14 @@ def _decrypt_nsig(self, s, video_id, player_url):
 
     def _extract_n_function_name(self, jscode):
         funcname, idx = self._search_regex(
-            r'''(?x)(?:\.get\("n"\)\)&&\(b=|b=String\.fromCharCode\(110\),c=a\.get\(b\)\)&&\(c=)
+            r'''(?x)
+            (?:
+                \.get\("n"\)\)&&\(b=|
+                (?:
+                    b=String\.fromCharCode\(110\)|
+                    ([a-zA-Z0-9$.]+)&&\(b="nn"\[\+\1\]
+                ),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: