import re import json from .common import InfoExtractor from ..utils import ( compat_urlparse, clean_html, get_element_by_id, ) class TechTVMITIE(InfoExtractor): IE_NAME = u'techtv.mit.edu' _VALID_URL = r'https?://techtv\.mit\.edu/(videos|embeds)/(?P\d+)' _TEST = { u'url': u'http://techtv.mit.edu/videos/25418-mit-dna-learning-center-set', u'file': u'25418.mp4', u'md5': u'1f8cb3e170d41fd74add04d3c9330e5f', u'info_dict': { u'title': u'MIT DNA Learning Center Set', u'description': u'md5:82313335e8a8a3f243351ba55bc1b474', }, } def _real_extract(self, url): mobj = re.match(self._VALID_URL, url) video_id = mobj.group('id') raw_page = self._download_webpage( 'http://techtv.mit.edu/videos/%s' % video_id, video_id) clean_page = re.compile(u'', re.S).sub(u'', raw_page) base_url = self._search_regex(r'ipadUrl: \'(.+?cloudfront.net/)', raw_page, u'base url') formats_json = self._search_regex(r'bitrates: (\[.+?\])', raw_page, u'video formats') formats_mit = json.loads(formats_json) formats = [ { 'format_id': f['label'], 'url': base_url + f['url'].partition(':')[2], 'ext': f['url'].partition(':')[0], 'format': f['label'], 'width': f['width'], 'vbr': f['bitrate'], } for f in formats_mit ] title = get_element_by_id('edit-title', clean_page) description = clean_html(get_element_by_id('edit-description', clean_page)) thumbnail = self._search_regex(r'playlist:.*?url: \'(.+?)\'', raw_page, u'thumbnail', flags=re.DOTALL) return {'id': video_id, 'title': title, 'formats': formats, 'description': description, 'thumbnail': thumbnail, } class MITIE(TechTVMITIE): IE_NAME = u'video.mit.edu' _VALID_URL = r'https?://video\.mit\.edu/watch/(?P[^/]+)' _TEST = { u'url': u'http://video.mit.edu/watch/the-government-is-profiling-you-13222/', u'file': u'21783.mp4', u'md5': u'7db01d5ccc1895fc5010e9c9e13648da', u'info_dict': { u'title': u'The Government is Profiling You', u'description': u'md5:ad5795fe1e1623b73620dbfd47df9afd', }, } def _real_extract(self, url): mobj = re.match(self._VALID_URL, url) page_title = mobj.group('title') webpage = self._download_webpage(url, page_title) self.to_screen('%s: Extracting %s url' % (page_title, TechTVMITIE.IE_NAME)) embed_url = self._search_regex(r'<iframe .*?src="(.+?)"', webpage, u'embed url') return self.url_result(embed_url, ie='TechTVMIT') class OCWMITIE(InfoExtractor): IE_NAME = u'ocw.mit.edu' _VALID_URL = r'^http://ocw\.mit\.edu/courses/(?P<topic>[a-z0-9\-]+)' _BASE_URL = u'http://ocw.mit.edu/' _TESTS = [ { u'url': u'http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-041-probabilistic-systems-analysis-and-applied-probability-fall-2010/video-lectures/lecture-7-multiple-variables-expectations-independence/', u'md5': u'348bef727b573c0bd9ad8a7c08c89ebd', u'info_dict': { u'title': u'7. Discrete Random Variables III', u'description': u'In this lecture, the professor discussed multiple random variables, expectations, and binomial distribution.', u'subtitles': u'http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-041-probabilistic-systems-analysis-and-applied-probability-fall-2010/video-lectures/lecture-7-multiple-variables-expectations-independence/MIT6_041F11_lec07_300k.mp4.srt' } }, { u'url': u'http://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/1.-differentiation/part-a-definition-and-basic-rules/session-1-introduction-to-derivatives/', u'md5': u'f4a434f08f15e581eb67cec0b57bcf6f', u'info_dict': { u'title': u'Lec 1 _ MIT 18.01 Single Variable Calculus, Fall 2007', u'subtitles': u'http://ocw.mit.edu//courses/mathematics/18-01sc-single-variable-calculus-fall-2010/ocw-18.01-f07-lec01_300k.SRT' } } ] def _real_extract(self, url): webpage = self._download_webpage(url, self.IE_NAME) title = self._html_search_meta(u'WT.cg_s', webpage) description = self._html_search_meta(u'Description', webpage) # search for call to ocw_embed_chapter_media(container_id, media_url, provider, page_url, image_url, start, stop, captions_file) embed_chapter_media = re.search(r'ocw_embed_chapter_media\((.+?)\)', webpage) if embed_chapter_media: metadata = re.sub(r'[\'"]', u'', embed_chapter_media.group(1)) metadata = re.split(r', ?', metadata) yt = metadata[1] subs = compat_urlparse.urljoin(self._BASE_URL, metadata[7]) else: # search for call to ocw_embed_chapter_media(container_id, media_url, provider, page_url, image_url, captions_file) embed_media = re.search(r'ocw_embed_media\((.+?)\)', webpage) if embed_media: metadata = re.sub(r'[\'"]', u'', embed_media.group(1)) metadata = re.split(r', ?', metadata) yt = metadata[1] subs = compat_urlparse.urljoin(self._BASE_URL, metadata[5]) else: raise ExtractorError('Unable to find embedded YouTube video.') data = self.url_result(yt, 'Youtube') data['subtitles'] = subs return data