--- /dev/null
+# coding: utf-8
+from __future__ import unicode_literals
+
+import re
+
+from .common import InfoExtractor
+from ..compat import compat_parse_qs
+from ..utils import (
+ ExtractorError,
+ xpath_text,
+ clean_html,
+)
+
+
+class OpenClassRoomIE(InfoExtractor):
+ _VALID_URL = r'https?://openclassroom\.stanford\.edu/MainFolder/VideoPage\.php\?(?P<query>.*)'
+ _TEST = {
+ 'url': 'http://openclassroom.stanford.edu/MainFolder/VideoPage.php?course=PracticalUnix&video=intro-environment&speed=100',
+ 'md5': '544a9468546059d4e80d76265b0443b8',
+ 'info_dict': {
+ 'id': 'intro-environment',
+ 'ext': 'mp4',
+ 'title': 'Intro Environment',
+ 'description': 'md5:7d57306c8649f814ca00bb80dada600e',
+ }
+ }
+ _URL_TEMPLATE = 'http://openclassroom.stanford.edu/MainFolder/courses/%s/videos/%s'
+
+ def _real_extract(self, url):
+ qs = compat_parse_qs(re.match(self._VALID_URL, url).group('query'))
+ if not qs.get('course') or not qs.get('video'):
+ raise ExtractorError('Unsupported URL', expected=True)
+ video_id = qs['video'][0]
+ video_doc = self._download_xml(
+ self._URL_TEMPLATE % (qs['course'][0], video_id + '.xml'), video_id)
+ return {
+ 'id': video_id,
+ 'title': xpath_text(video_doc, 'title', 'title', True),
+ 'url': self._URL_TEMPLATE % (qs['course'][0], xpath_text(
+ video_doc, 'videoFile', 'video url', True)),
+ 'description': clean_html(xpath_text(video_doc, 'text')),
+ }