Fixed "get_throttling_function_name: could not find match for multiple" and other improvements

.gitignore

@@ -56,6 +56,8 @@ coverage.xml
 .hypothesis/
 .pytest_cache/
 *.mp4
+*.mp3
+*.webm
 
 # Performance profiling
 prof/

pytubefix/__main__.py

@@ -204,18 +204,6 @@ def streaming_data(self):
             video_id = self.vid_info['videoDetails']['videoId']
 
             if video_id in invalid_id_list:
-                logger.warning(
-                    f'The {self.client} client did not get a valid response, trying to use the WEB client.'
-                )
-                logger.warning(
-                    f'Video ID: {video_id}'
-                )
-                logger.warning(
-                    'Please open an issue at '
-                    'https://github.com/JuanBindez/pytubefix/issues '
-                    'and provide this log output.'
-                )
-
                 self.try_another_client()
         else:
             self.try_another_client()
@@ -338,6 +326,19 @@ def try_another_client(self):
         but it is no longer effective.
 
         """
+
+        logger.warning(
+            f'The {self.client} client did not get a valid response, trying to use the WEB client.'
+        )
+        logger.warning(
+            f'Video ID: {self.video_id}'
+        )
+        logger.warning(
+            'Please open an issue at '
+            'https://github.com/JuanBindez/pytubefix/issues '
+            'and provide this log output.'
+        )
+
         innertube = InnerTube(
             client='WEB',
             use_oauth=self.use_oauth,

pytubefix/cipher.py

@@ -103,8 +103,15 @@ def get_throttling_function_name(js: str) -> str:
         # a.C && (b = a.get("n")) && (b = Bpa[0](b), a.set("n", b),
         # Bpa.length || iha("")) }};
         # In the above case, `iha` is the relevant function name
-        r'a\.[a-zA-Z]\s*&&\s*\([a-z]\s*=\s*a\.get\("n"\)\)\s*&&\s*'
-        r'\([a-z]\s*=\s*([a-zA-Z0-9$]+)(\[\d+\])?\([a-z]\)',
+        # r'a\.[a-zA-Z]\s*&&\s*\([a-z]\s*=\s*a\.get\("n"\)\)\s*&&\s*'
+        # r'\([a-z]\s*=\s*([a-zA-Z0-9$]+)(\[\d+\])?\([a-z]\)',
+
+        # New pattern added on July 9, 2024
+        # https://github.com/yt-dlp/yt-dlp/pull/10390/files
+        # In this example we can find the name of the function at index "0" of "IRa"
+        # a.D && (b = String.fromCharCode(110), c = a.get(b)) && (c = IRa[0](c), a.set(b,c), IRa.length || Ima(""))
+        r'(?:\.get\(\"n\"\)\)&&\(b=|b=String\.fromCharCode\(\d+\),c=a\.get\(b\)\)&&\(c=)([a-zA-Z0-9$]+)(?:\[('
+        r'\d+)\])?\([a-zA-Z0-9]\)'
     ]
     logger.debug('Finding throttling function name')
     for pattern in function_patterns:

pytubefix/contrib/channel.py

@@ -186,13 +186,12 @@ def _build_continuation_url(self, continuation: str) -> Tuple[str, dict, dict]:
         return (
             (
                 # was changed to this format (and post requests)
-                # between 2022.11.06 and 2022.11.20
-                "https://www.youtube.com/youtubei/v1/browse?key="
-                f"{self.yt_api_key}"
+                # around the day 2024.04.16
+                "https://www.youtube.com/youtubei/v1/browse?prettyPrint=false"
             ),
             {
                 "X-YouTube-Client-Name": "1",
-                "X-YouTube-Client-Version": "2.20200720.00.02",
+                "X-YouTube-Client-Version": "2.20240530.02.00",
             },
             # extra data required for post request
             {
@@ -201,7 +200,10 @@ def _build_continuation_url(self, continuation: str) -> Tuple[str, dict, dict]:
                     "client": {
                         "clientName": "WEB",
                         "visitorData": self._visitor_data,
-                        "clientVersion": "2.20200720.00.02"
+                        "osName": "Windows",
+                        "osVersion": "10.0",
+                        "clientVersion": "2.20240530.02.00",
+                        "platform": "DESKTOP"
                     }
                 }
             }

pytubefix/contrib/playlist.py

@@ -175,21 +175,23 @@ def _build_continuation_url(self, continuation: str) -> Tuple[str, dict, dict]:
         return (
             (
                 # was changed to this format (and post requests)
-                # between 2021.03.02 and 2021.03.03
-                "https://www.youtube.com/youtubei/v1/browse?key="
-                f"{self.yt_api_key}"
+                # around the day 2024.04.16
+                "https://www.youtube.com/youtubei/v1/browse?prettyPrint=false"
             ),
             {
                 "X-YouTube-Client-Name": "1",
-                "X-YouTube-Client-Version": "2.20200720.00.02",
+                "X-YouTube-Client-Version": "2.20240530.02.00",
             },
             # extra data required for post request
             {
                 "continuation": continuation,
                 "context": {
                     "client": {
                         "clientName": "WEB",
-                        "clientVersion": "2.20200720.00.02"
+                        "osName": "Windows",
+                        "osVersion": "10.0",
+                        "clientVersion": "2.20240530.02.00",
+                        "platform": "DESKTOP"
                     }
                 }
             }