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