[yahoo] Process query result embedded in webpage

youtube_dl/extractor/yahoo.py

@@ -144,6 +144,20 @@ class YahooIE(InfoExtractor):
         }, {
             'url': 'https://tw.news.yahoo.com/-100120367.html',
             'only_matching': True,
+        }, {
+            # Query result is embedded in webpage, but explicit request to video API fails with geo restriction
+            'url': 'https://screen.yahoo.com/community/communitary-community-episode-1-ladders-154501237.html',
+            'info_dict': {
+                'id': '1f32853c-a271-3eef-8cb6-f6d6872cb504',
+                'ext': 'mp4',
+                'title': 'Communitary - Community Episode 1: Ladders',
+                'description': 'md5:8fc39608213295748e1e289807838c97',
+                'duration': 1646,
+            },
+            'params': {
+                # m3u8 download
+                'skip_download': True,
+            },
         }
     ]
 
@@ -171,6 +185,19 @@ def _real_extract(self, url):
         if nbc_sports_url:
             return self.url_result(nbc_sports_url, 'NBCSportsVPlayer')
 
+        # Query result is often embedded in webpage as JSON. Sometimes explicit requests
+        # to video API results in a failure with geo restriction reason therefore using
+        # embedded query result when present sounds reasonable.
+        config_json = self._search_regex(
+            r'window\.Af\.bootstrap\[[^\]]+\]\s*=\s*({.*?"applet_type"\s*:\s*"td-applet-videoplayer".*?});(?:</script>|$)',
+            webpage, 'videoplayer applet', default=None)
+        if config_json:
+            config = self._parse_json(config_json, display_id, fatal=False)
+            if config:
+                sapi = config.get('models', {}).get('applet_model', {}).get('data', {}).get('sapi')
+                if sapi:
+                    return self._extract_info(display_id, sapi, webpage)
+
         items_json = self._search_regex(
             r'mediaItems: ({.*?})$', webpage, 'items', flags=re.MULTILINE,
             default=None)
@@ -190,22 +217,10 @@ def _real_extract(self, url):
             video_id = info['id']
         return self._get_info(video_id, display_id, webpage)
 
-    def _get_info(self, video_id, display_id, webpage):
+    def _extract_info(self, display_id, query, webpage):
-        region = self._search_regex(
+        info = query['query']['results']['mediaObj'][0]
-            r'\\?"region\\?"\s*:\s*\\?"([^"]+?)\\?"',
-            webpage, 'region', fatal=False, default='US')
-        data = compat_urllib_parse.urlencode({
-            'protocol': 'http',
-            'region': region,
-        })
-        query_url = (
-            'https://video.media.yql.yahoo.com/v1/video/sapi/streams/'
-            '{id}?{data}'.format(id=video_id, data=data))
-        query_result = self._download_json(
-            query_url, display_id, 'Downloading video info')
-
-        info = query_result['query']['results']['mediaObj'][0]
         meta = info.get('meta')
+        video_id = info.get('id')
 
         if not meta:
             msg = info['status'].get('msg')
@@ -231,6 +246,9 @@ def _get_info(self, video_id, display_id, webpage):
                     'ext': 'flv',
                 })
             else:
+                if s.get('format') == 'm3u8_playlist':
+                    format_info['protocol'] = 'm3u8_native'
+                    format_info['ext'] = 'mp4'
                 format_url = compat_urlparse.urljoin(host, path)
                 format_info['url'] = format_url
             formats.append(format_info)
@@ -264,6 +282,21 @@ def _get_info(self, video_id, display_id, webpage):
             'subtitles': subtitles,
         }
 
+    def _get_info(self, video_id, display_id, webpage):
+        region = self._search_regex(
+            r'\\?"region\\?"\s*:\s*\\?"([^"]+?)\\?"',
+            webpage, 'region', fatal=False, default='US')
+        data = compat_urllib_parse.urlencode({
+            'protocol': 'http',
+            'region': region,
+        })
+        query_url = (
+            'https://video.media.yql.yahoo.com/v1/video/sapi/streams/'
+            '{id}?{data}'.format(id=video_id, data=data))
+        query_result = self._download_json(
+            query_url, display_id, 'Downloading video info')
+        return self._extract_info(display_id, query_result, webpage)
+
 
 class YahooSearchIE(SearchInfoExtractor):
     IE_DESC = 'Yahoo screen search'