[afreecatv] Use partial view only when necessary (closes #14450)

youtube_dl/extractor/afreecatv.py

@@ -141,22 +141,22 @@ class AfreecaTVIE(InfoExtractor):
             'skip_download': True,
         },
     }, {
-        # adult video
+        # PARTIAL_ADULT
-        'url': 'http://vod.afreecatv.com/PLAYER/STATION/26542731',
+        'url': 'http://vod.afreecatv.com/PLAYER/STATION/32028439',
         'info_dict': {
-            'id': '20171001_F1AE1711_196617479_1',
+            'id': '20180327_27901457_202289533_1',
             'ext': 'mp4',
-            'title': '[생]서아 초심 찾기 방송 (part 1)',
+            'title': '[생]빨개요♥ (part 1)',
             'thumbnail': 're:^https?://(?:video|st)img.afreecatv.com/.*$',
-            'uploader': 'BJ서아',
+            'uploader': '[SA]서아',
             'uploader_id': 'bjdyrksu',
-            'upload_date': '20171001',
+            'upload_date': '20180327',
-            'duration': 3600,
+            'duration': 3601,
-            'age_limit': 18,
         },
         'params': {
             'skip_download': True,
         },
+        'expected_warnings': ['adult content'],
     }, {
         'url': 'http://www.afreecatv.com/player/Player.swf?szType=szBjId=djleegoon&nStationNo=11273158&nBbsNo=13161095&nTitleNo=36327652',
         'only_matching': True,
@@ -235,21 +235,41 @@ class AfreecaTVIE(InfoExtractor):
         video_id = self._search_regex(
             r'nTitleNo\s*=\s*(\d+)', webpage, 'title', default=video_id)
 
+        partial_view = False
+        for _ in range(2):
+            query = {
+                'nTitleNo': video_id,
+                'nStationNo': station_id,
+                'nBbsNo': bbs_id,
+            }
+            if partial_view:
+                query['partialView'] = 'SKIP_ADULT'
             video_xml = self._download_xml(
                 'http://afbbs.afreecatv.com:8080/api/video/get_video_info.php',
+                video_id, 'Downloading video info XML%s'
+                % (' (skipping adult)' if partial_view else ''),
                 video_id, headers={
                     'Referer': url,
-            }, query={
+                }, query=query)
-                'nTitleNo': video_id,
-                'nStationNo': station_id,
-                'nBbsNo': bbs_id,
-                'partialView': 'SKIP_ADULT',
-            })
 
             flag = xpath_text(video_xml, './track/flag', 'flag', default=None)
-        if flag and flag != 'SUCCEED':
+            if flag and flag == 'SUCCEED':
+                break
+            if flag == 'PARTIAL_ADULT':
+                self._downloader.report_warning(
+                    'In accordance with local laws and regulations, underage users are restricted from watching adult content. '
+                    'Only content suitable for all ages will be downloaded. '
+                    'Provide account credentials if you wish to download restricted content.')
+                partial_view = True
+                continue
+            elif flag == 'ADULT':
+                error = 'Only users older than 19 are able to watch this video. Provide account credentials to download this content.'
+            else:
+                error = flag
             raise ExtractorError(
-                '%s said: %s' % (self.IE_NAME, flag), expected=True)
+                '%s said: %s' % (self.IE_NAME, error), expected=True)
+        else:
+            raise ExtractorError('Unable to download video info')
 
         video_element = video_xml.findall(compat_xpath('./track/video'))[-1]
         if video_element is None or video_element.text is None: