-        filekey = self._search_regex(self._FILEKEY_REGEX, page, 'filekey')
-
-        title = self._html_search_regex(self._TITLE_REGEX, page, 'title', fatal=False)
-        description = self._html_search_regex(self._DESCRIPTION_REGEX, page, 'description', default='', fatal=False)
+    def _real_extract(self, url):
+        video_id = self._match_id(url)
+
+        url = self._URL_TEMPLATE % (self._HOST, video_id)
+
+        webpage = self._download_webpage(
+            url, video_id, 'Downloading video page')
+
+        self._check_existence(webpage, video_id)
+
+        def extract_filekey(default=NO_DEFAULT):
+            filekey = self._search_regex(
+                self._FILEKEY_REGEX, webpage, 'filekey', default=default)
+            if filekey is not default and (filekey[0] != '"' or filekey[-1] != '"'):
+                return self._search_regex(
+                    r'var\s+%s\s*=\s*"([^"]+)"' % re.escape(filekey), webpage, 'filekey', default=default)
+            else:
+                return filekey
+
+        filekey = extract_filekey(default=None)
+
+        if not filekey:
+            fields = self._hidden_inputs(webpage)
+            post_url = self._search_regex(
+                r'<form[^>]+action=(["\'])(?P<url>.+?)\1', webpage,
+                'post url', default=url, group='url')
+            if not post_url.startswith('http'):
+                post_url = compat_urlparse.urljoin(url, post_url)
+            request = sanitized_Request(
+                post_url, urlencode_postdata(encode_dict(fields)))
+            request.add_header('Content-Type', 'application/x-www-form-urlencoded')
+            request.add_header('Referer', post_url)
+            webpage = self._download_webpage(
+                request, video_id, 'Downloading continue to the video page')
+            self._check_existence(webpage, video_id)
+
+        filekey = extract_filekey()
+
+        title = self._html_search_regex(self._TITLE_REGEX, webpage, 'title', fatal=False)
+        description = self._html_search_regex(self._DESCRIPTION_REGEX, webpage, 'description', default='', fatal=False)