[bilibili] Fix and improve extraction (closes #15048, closes #15430, closes #15622, closes #15863)

youtube_dl/extractor/bilibili.py

@@ -27,14 +27,14 @@ class BiliBiliIE(InfoExtractor):
 
     _TESTS = [{
         'url': 'http://www.bilibili.tv/video/av1074402/',
-        'md5': '9fa226fe2b8a9a4d5a69b4c6a183417e',
+        'md5': '5f7d29e1a2872f3df0cf76b1f87d3788',
         'info_dict': {
             'id': '1074402',
-            'ext': 'mp4',
+            'ext': 'flv',
             'title': '【金坷垃】金泡沫',
             'description': 'md5:ce18c2a2d2193f0df2917d270f2e5923',
-            'duration': 308.315,
+            'duration': 308.067,
-            'timestamp': 1398012660,
+            'timestamp': 1398012678,
             'upload_date': '20140420',
             'thumbnail': r're:^https?://.+\.jpg',
             'uploader': '菊子桑',
@@ -59,18 +59,39 @@ class BiliBiliIE(InfoExtractor):
         'url': 'http://www.bilibili.com/video/av8903802/',
         'info_dict': {
             'id': '8903802',
-            'ext': 'mp4',
             'title': '阿滴英文｜英文歌分享#6 "Closer',
             'description': '滴妹今天唱Closer給你聽! 有史以来，被推最多次也是最久的歌曲，其实歌词跟我原本想像差蛮多的，不过还是好听！ 微博@阿滴英文',
+        },
+        'playlist': [{
+            'info_dict': {
+                'id': '8903802_part1',
+                'ext': 'flv',
+                'title': '阿滴英文｜英文歌分享#6 "Closer',
+                'description': 'md5:3b1b9e25b78da4ef87e9b548b88ee76a',
                 'uploader': '阿滴英文',
                 'uploader_id': '65880958',
-            'timestamp': 1488382620,
+                'timestamp': 1488382634,
+                'upload_date': '20170301',
+            },
+            'params': {
+                'skip_download': True,  # Test metadata only
+            },
+        }, {
+            'info_dict': {
+                'id': '8903802_part2',
+                'ext': 'flv',
+                'title': '阿滴英文｜英文歌分享#6 "Closer',
+                'description': 'md5:3b1b9e25b78da4ef87e9b548b88ee76a',
+                'uploader': '阿滴英文',
+                'uploader_id': '65880958',
+                'timestamp': 1488382634,
                 'upload_date': '20170301',
             },
             'params': {
                 'skip_download': True,  # Test metadata only
             },
         }]
+    }]
 
     _APP_KEY = '84956560bc028eb7'
     _BILIBILI_KEY = '94aba54af9065f71de72f5508f1cd42e'
@@ -92,9 +113,13 @@ class BiliBiliIE(InfoExtractor):
         webpage = self._download_webpage(url, video_id)
 
         if 'anime/' not in url:
-            cid = compat_parse_qs(self._search_regex(
+            cid = self._search_regex(
-                [r'EmbedPlayer\([^)]+,\s*"([^"]+)"\)',
+                r'cid(?:["\']:|=)(\d+)', webpage, 'cid',
-                 r'<iframe[^>]+src="https://secure\.bilibili\.com/secure,([^"]+)"'],
+                default=None
+            ) or compat_parse_qs(self._search_regex(
+                [r'1EmbedPlayer\([^)]+,\s*"([^"]+)"\)',
+                 r'1EmbedPlayer\([^)]+,\s*\\"([^"]+)\\"\)',
+                 r'1<iframe[^>]+src="https://secure\.bilibili\.com/secure,([^"]+)"'],
                 webpage, 'player parameters'))['cid'][0]
         else:
             if 'no_bangumi_tip' not in smuggled_data:
@@ -114,24 +139,31 @@ class BiliBiliIE(InfoExtractor):
                 self._report_error(js)
             cid = js['result']['cid']
 
-        payload = 'appkey=%s&cid=%s&otype=json&quality=2&type=mp4' % (self._APP_KEY, cid)
-        sign = hashlib.md5((payload + self._BILIBILI_KEY).encode('utf-8')).hexdigest()
-
         headers = {
             'Referer': url
         }
         headers.update(self.geo_verification_headers())
 
+        entries = []
+
+        RENDITIONS = ('qn=80&quality=80&type=', 'quality=2&type=mp4')
+        for num, rendition in enumerate(RENDITIONS, start=1):
+            payload = 'appkey=%s&cid=%s&otype=json&%s' % (self._APP_KEY, cid, rendition)
+            sign = hashlib.md5((payload + self._BILIBILI_KEY).encode('utf-8')).hexdigest()
+
             video_info = self._download_json(
                 'http://interface.bilibili.com/playurl?%s&sign=%s' % (payload, sign),
                 video_id, note='Downloading video info page',
-            headers=headers)
+                headers=headers, fatal=num == len(RENDITIONS))
+
+            if not video_info:
+                continue
 
             if 'durl' not in video_info:
+                if num < len(RENDITIONS):
+                    continue
                 self._report_error(video_info)
 
-        entries = []
-
             for idx, durl in enumerate(video_info['durl']):
                 formats = [{
                     'url': durl['url'],
@@ -156,11 +188,17 @@ class BiliBiliIE(InfoExtractor):
                     'duration': float_or_none(durl.get('length'), 1000),
                     'formats': formats,
                 })
+            break
 
-        title = self._html_search_regex('<h1[^>]*>([^<]+)</h1>', webpage, 'title')
+        title = self._html_search_regex(
+            ('<h1[^>]+\btitle=(["\'])(?P<title>(?:(?!\1).)+)\1',
+             '(?s)<h1[^>]*>(?P<title>.+?)</h1>'), webpage, 'title',
+            group='title')
         description = self._html_search_meta('description', webpage)
         timestamp = unified_timestamp(self._html_search_regex(
-            r'<time[^>]+datetime="([^"]+)"', webpage, 'upload time', default=None))
+            r'<time[^>]+datetime="([^"]+)"', webpage, 'upload time',
+            default=None) or self._html_search_meta(
+            'uploadDate', webpage, 'timestamp', default=None))
         thumbnail = self._html_search_meta(['og:image', 'thumbnailUrl'], webpage)
 
         # TODO 'view_count' requires deobfuscating Javascript
@@ -174,13 +212,16 @@ class BiliBiliIE(InfoExtractor):
         }
 
         uploader_mobj = re.search(
-            r'<a[^>]+href="(?:https?:)?//space\.bilibili\.com/(?P<id>\d+)"[^>]+title="(?P<name>[^"]+)"',
+            r'<a[^>]+href="(?:https?:)?//space\.bilibili\.com/(?P<id>\d+)"[^>]*>(?P<name>[^<]+)',
             webpage)
         if uploader_mobj:
             info.update({
                 'uploader': uploader_mobj.group('name'),
                 'uploader_id': uploader_mobj.group('id'),
             })
+        if not info.get('uploader'):
+            info['uploader'] = self._html_search_meta(
+                'author', webpage, 'uploader', default=None)
 
         for entry in entries:
             entry.update(info)