Update URPlayIE extractor for Next.js page format, with subtitles

youtube_dl/extractor/urplay.py

@@ -4,7 +4,11 @@ from __future__ import unicode_literals
 from .common import InfoExtractor
 from ..utils import (
     dict_get,
+    ExtractorError,
     int_or_none,
+    ISO639Utils,
+    parse_age_limit,
+    try_get,
     unified_timestamp,
 )
 
@@ -23,9 +27,10 @@ class URPlayIE(InfoExtractor):
             'upload_date': '20171214',
             'series': 'UR Samtiden - Livet, universum och rymdens märkliga musik',
             'duration': 2269,
-            'categories': ['Kultur & historia'],
+            'categories': ['Vetenskap & teknik'],
             'tags': ['Kritiskt tänkande', 'Vetenskap', 'Vetenskaplig verksamhet'],
             'episode': 'Om vetenskap, kritiskt tänkande och motstånd',
+            'age_limit': 15,
         },
     }, {
         'url': 'https://urskola.se/Produkter/190031-Tripp-Trapp-Trad-Sovkudde',
@@ -50,11 +55,19 @@ class URPlayIE(InfoExtractor):
         video_id = self._match_id(url)
         url = url.replace('skola.se/Produkter', 'play.se/program')
         webpage = self._download_webpage(url, video_id)
-        vid = int(video_id)
-        accessible_episodes = self._parse_json(self._html_search_regex(
-            r'data-react-class="routes/Product/components/ProgramContainer/ProgramContainer"[^>]+data-react-props="({.+?})"',
-            webpage, 'urplayer data'), video_id)['accessibleEpisodes']
-        urplayer_data = next(e for e in accessible_episodes if e.get('id') == vid)
+        urplayer_data = self._search_regex(
+            r'(?s)\bid\s*=\s*"__NEXT_DATA__"[^>]*>\s*({.+?})\s*</script',
+            webpage, 'urplayer next data', fatal=False) or {}
+        if urplayer_data:
+            urplayer_data = self._parse_json(urplayer_data, video_id, fatal=False)
+            urplayer_data = try_get(urplayer_data, lambda x: x['props']['pageProps']['program'], dict)
+            if not urplayer_data:
+                raise ExtractorError('Unable to parse __NEXT_DATA__')
+        else:
+            accessible_episodes = self._parse_json(self._html_search_regex(
+                r'data-react-class="routes/Product/components/ProgramContainer/ProgramContainer"[^>]+data-react-props="({.+?})"',
+                webpage, 'urplayer data'), video_id)['accessibleEpisodes']
+            urplayer_data = next(e for e in accessible_episodes if e.get('id') == int_or_none(video_id))
         episode = urplayer_data['title']
         raw_streaming_info = urplayer_data['streamingInfo']['raw']
         host = self._download_json(
@@ -72,6 +85,30 @@ class URPlayIE(InfoExtractor):
                     video_id, skip_protocols=['f4m', 'rtmp', 'rtsp']))
         self._sort_formats(formats)
 
+        subtitles = {}
+
+        def parse_lang_code(code):
+            "3-character language code or None (utils candidate)"
+            if code is None:
+                return
+            lang = code.lower()
+            if not ISO639Utils.long2short(lang):
+                lang = ISO639Utils.short2long(lang)
+            return lang or None
+
+        for k, v in (urplayer_data['streamingInfo'].get('sweComplete') or {}).items():
+            if (k in ('sd', 'hd') or not isinstance(v, dict)):
+                continue
+            lang, sttl_url = (v.get(kk) for kk in ('language', 'location', ))
+            if not sttl_url:
+                continue
+            lang = parse_lang_code(lang)
+            if not lang:
+                continue
+            sttl = subtitles.get(lang) or []
+            sttl.append({'ext': k, 'url': sttl_url, })
+            subtitles[lang] = sttl
+
         image = urplayer_data.get('image') or {}
         thumbnails = []
         for k, v in image.items():
@@ -104,4 +141,7 @@ class URPlayIE(InfoExtractor):
             'season': series.get('label'),
             'episode': episode,
             'episode_number': int_or_none(urplayer_data.get('episodeNumber')),
+            'age_limit': parse_age_limit(min(try_get(a, lambda x: x['from'], int) or 0
+                                             for a in urplayer_data.get('ageRanges', []))),
+            'subtitles': subtitles,
         }