[qqmusic] Fix song extraction when certain formats are unavailable

youtube_dl/extractor/qqmusic.py

@@ -9,8 +9,13 @@
 from ..utils import (
     strip_jsonp,
     unescapeHTML,
+    HEADRequest,
+    ExtractorError,
+)
+from ..compat import (
+    compat_urllib_request,
+    compat_HTTPError,
 )
-from ..compat import compat_urllib_request
 
 
 class QQMusicIE(InfoExtractor):
@@ -26,6 +31,20 @@ class QQMusicIE(InfoExtractor):
             'upload_date': '20141227',
             'creator': '林俊杰',
             'description': 'md5:d327722d0361576fde558f1ac68a7065',
+            'thumbnail': 'http://i.gtimg.cn/music/photo/mid_album_500/7/p/001IV22P1RDX7p.jpg',
+        }
+    }, {
+        'note': 'There is no mp3-320 version of this song.',
+        'url': 'http://y.qq.com/#type=song&mid=004MsGEo3DdNxV',
+        'md5': 'fa3926f0c585cda0af8fa4f796482e3e',
+        'info_dict': {
+            'id': '004MsGEo3DdNxV',
+            'ext': 'mp3',
+            'title': '如果',
+            'upload_date': '20050626',
+            'creator': '李季美',
+            'description': 'md5:46857d5ed62bc4ba84607a805dccf437',
+            'thumbnail': 'http://i.gtimg.cn/music/photo/mid_album_500/r/Q/0042owYj46IxrQ.jpg',
         }
     }]
 
@@ -68,6 +87,13 @@ def _real_extract(self, url):
         if lrc_content:
             lrc_content = lrc_content.replace('\\n', '\n')
 
+        thumbnail_url = None
+        albummid = self._search_regex(
+            [r'albummid:\'([0-9a-zA-Z]+)\'', r'"albummid":"([0-9a-zA-Z]+)"'], detail_info_page, 'album mid', default=None)
+        if albummid:
+            thumbnail_url = "http://i.gtimg.cn/music/photo/mid_album_500/%s/%s/%s.jpg" \
+                            % (albummid[-2:-1], albummid[-1], albummid)
+
         guid = self.m_r_get_ruin()
 
         vkey = self._download_json(
@@ -77,9 +103,19 @@ def _real_extract(self, url):
 
         formats = []
         for format_id, details in self._FORMATS.items():
+            video_url = 'http://cc.stream.qqmusic.qq.com/%s%s.%s?vkey=%s&guid=%s&fromtag=0' \
+                        % (details['prefix'], mid, details['ext'], vkey, guid)
+            req = HEADRequest(video_url)
+            try:
+                res = self._request_webpage(
+                    req, mid, note='Testing %s video URL' % format_id, fatal=False)
+            except ExtractorError as e:
+                if isinstance(e.cause, compat_HTTPError) and e.cause.code in [400, 404]:
+                    self.report_warning('Invalid %s video URL' % format_id, mid)
+            else:
+                if res:
                     formats.append({
-                'url': 'http://cc.stream.qqmusic.qq.com/%s%s.%s?vkey=%s&guid=%s&fromtag=0'
-                       % (details['prefix'], mid, details['ext'], vkey, guid),
+                        'url': video_url,
                         'format': format_id,
                         'format_id': format_id,
                         'preference': details['preference'],
@@ -94,6 +130,7 @@ def _real_extract(self, url):
             'upload_date': publish_time,
             'creator': singer,
             'description': lrc_content,
+            'thumbnail': thumbnail_url,
         }