+ }, {
+ 'url': 'http://www.pornhub.com/view_video.php?viewkey=ph557bbb6676d2d',
+ 'only_matching': True,
+ }]
+
+ @classmethod
+ def _extract_url(cls, webpage):
+ mobj = re.search(
+ r'<iframe[^>]+?src=(["\'])(?P<url>(?:https?:)?//(?:www\.)?pornhub\.com/embed/\d+)\1', webpage)
+ if mobj:
+ return mobj.group('url')