[deezer] Add simple support

youtube_dl/extractor/__init__.py

@@ -68,6 +68,7 @@
 )
 from .daum import DaumIE
 from .dbtv import DBTVIE
+from .deezer import DeezerPlaylistIE
 from .dfb import DFBIE
 from .dotsub import DotsubIE
 from .dreisat import DreiSatIE

youtube_dl/extractor/deezer.py

@@ -0,0 +1,80 @@
+from __future__ import unicode_literals
+
+import json
+import re
+
+from .common import InfoExtractor
+from ..utils import (
+    int_or_none,
+    orderedSet,
+)
+
+
+class DeezerPlaylistIE(InfoExtractor):
+    _VALID_URL = r'https?://(?:www\.)?deezer\.com/playlist/(?P<id>[0-9]+)'
+    _TEST = {
+        'url': 'http://www.deezer.com/playlist/176747451',
+        'info_dict': {
+            'id': '176747451',
+            'title': 'Best!',
+            'uploader': 'Anonymous',
+            'thumbnail': 're:^https?://cdn-images.deezer.com/images/cover/.*\.jpg$',
+        },
+        'playlist_count': 30,
+    }
+
+    def _real_extract(self, url):
+        if 'test' not in self._downloader.params:
+            self._downloader.report_warning('For now, this extractor only supports the 30 second previews. Patches welcome!')
+
+        mobj = re.match(self._VALID_URL, url)
+        playlist_id = mobj.group('id')
+
+        webpage = self._download_webpage(url, playlist_id)
+        data_json = self._search_regex(
+            r'naboo\.display\(\'[^\']+\',\s*(.*?)\);\n', webpage, 'data JSON')
+        data = json.loads(data_json)
+
+        playlist_title = data.get('DATA', {}).get('TITLE')
+        playlist_uploader = data.get('DATA', {}).get('PARENT_USERNAME')
+        playlist_thumbnail = self._search_regex(
+            r'<img id="naboo_playlist_image".*?src="([^"]+)"', webpage,
+            'playlist thumbnail')
+
+        preview_pattern = self._search_regex(
+            r"var SOUND_PREVIEW_GATEWAY\s*=\s*'([^']+)';", webpage,
+            'preview URL pattern', fatal=False)
+        entries = []
+        for s in data['SONGS']['data']:
+            puid = s['MD5_ORIGIN']
+            preview_video_url = preview_pattern.\
+                replace('{0}', puid[0]).\
+                replace('{1}', puid).\
+                replace('{2}', s['MEDIA_VERSION'])
+            formats = [{
+                'format_id': 'preview',
+                'url': preview_video_url,
+                'preference': -100,  # Only the first 30 seconds
+                'ext': 'mp3',
+            }]
+            self._sort_formats(formats)
+            artists = ', '.join(
+                orderedSet(a['ART_NAME'] for a in s['ARTISTS']))
+            entries.append({
+                'id': s['SNG_ID'],
+                'duration': int_or_none(s.get('DURATION')),
+                'title': '%s - %s' % (artists, s['SNG_TITLE']),
+                'uploader': s['ART_NAME'],
+                'uploader_id': s['ART_ID'],
+                'age_limit': 16 if s.get('EXPLICIT_LYRICS') == '1' else 0,
+                'formats': formats,
+            })
+
+        return {
+            '_type': 'playlist',
+            'id': playlist_id,
+            'title': playlist_title,
+            'uploader': playlist_uploader,
+            'thumbnail': playlist_thumbnail,
+            'entries': entries,
+        }