[9gag] Add extractor

youtube_dl/extractor/ninegag.py

@@ -0,0 +1,41 @@
+import json
+import re
+
+from .common import InfoExtractor
+
+
+class NineGagIE(InfoExtractor):
+    IE_NAME = '9gag'
+    _VALID_URL = r'^https?://(?:www\.)?9gag\.tv/v/(?P<id>[0-9]+)'
+
+    _TEST = {
+        u"url": u"http://9gag.tv/v/1912",
+        u"file": u"1912.mp4",
+        u"info_dict": {
+            u"description": u"This 3-minute video will make you smile and then make you feel untalented and insignificant. Anyway, you should share this awesomeness. (Thanks, Dino!)",
+            u"title": u"\"People Are Awesome 2013\" Is Absolutely Awesome"
+        },
+        u'add_ie': [u'Youtube']
+    }
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        video_id = mobj.group('id')
+
+        webpage = self._download_webpage(url, video_id)
+        data_json = self._html_search_regex(r'''(?x)
+            <div\s*id="tv-video"\s*data-video-source="youtube"\s*
+                data-video-meta="([^"]+)"''', webpage, u'video metadata')
+
+        data = json.loads(data_json)
+
+        return {
+            '_type': 'url_transparent',
+            'url': data['youtubeVideoId'],
+            'ie_key': 'Youtube',
+            'id': video_id,
+            'title': data['title'],
+            'description': data['description'],
+            'view_count': int(data['view_count']),
+            'thumbnail': data['thumbnail_url'],
+        }