[ie/bilibili] Fix extractor

- fix playinfo extraction
- update API URL

yt_dlp/extractor/bilibili.py

@@ -191,7 +191,7 @@ def _get_subtitles(self, video_id, cid, aid=None):
         }
 
         video_info = self._download_json(
-            'https://api.bilibili.com/x/player/v2', video_id,
+            'https://api.bilibili.com/x/player/wbi/v2', video_id,
             query={'aid': aid, 'cid': cid} if aid else {'bvid': video_id, 'cid': cid},
             note=f'Extracting subtitle info {cid}', headers=self._HEADERS)
         if traverse_obj(video_info, ('data', 'need_login_subtitle')):
@@ -207,7 +207,7 @@ def _get_subtitles(self, video_id, cid, aid=None):
 
     def _get_chapters(self, aid, cid):
         chapters = aid and cid and self._download_json(
-            'https://api.bilibili.com/x/player/v2', aid, query={'aid': aid, 'cid': cid},
+            'https://api.bilibili.com/x/player/wbi/v2', aid, query={'aid': aid, 'cid': cid},
             note='Extracting chapters', fatal=False, headers=self._HEADERS)
         return traverse_obj(chapters, ('data', 'view_points', ..., {
             'title': 'content',
@@ -643,16 +643,19 @@ def _real_extract(self, url):
         if is_festival:
             video_data = initial_state['videoInfo']
         else:
-            play_info_obj = self._search_json(
-                r'window\.__playinfo__\s*=', webpage, 'play info', video_id, fatal=False)
-            if not play_info_obj:
+            play_info = None
+            if play_info_obj := self._search_json(
+                    r'window\.__playinfo__\s*=', webpage, 'play info', video_id, default=None):
+                play_info = traverse_obj(play_info_obj, ('data', {dict}))
+            else:
                 if traverse_obj(initial_state, ('error', 'trueCode')) == -403:
                     self.raise_login_required()
                 if traverse_obj(initial_state, ('error', 'trueCode')) == -404:
                     raise ExtractorError(
                         'This video may be deleted or geo-restricted. '
                         'You might want to try a VPN or a proxy server (with --proxy)', expected=True)
-            play_info = traverse_obj(play_info_obj, ('data', {dict}))
+                play_info = self._download_playinfo(initial_state['videoData']['bvid'],
+                                                    initial_state['cid'], headers=headers)
             if not play_info:
                 if traverse_obj(play_info_obj, 'code') == 87007:
                     toast = get_element_by_class('tips-toast', webpage) or ''