X-Git-Url: https://git.rapsys.eu/youtubedl/blobdiff_plain/e8cd8c4bd832446f1971215b9fedc4531555dc1a..20205e79eb4216762c923790b27dbe38f945293a:/youtube_dl/extractor/mit.py diff --git a/youtube_dl/extractor/mit.py b/youtube_dl/extractor/mit.py index 76b717f..e1506a7 100644 --- a/youtube_dl/extractor/mit.py +++ b/youtube_dl/extractor/mit.py @@ -1,38 +1,42 @@ +from __future__ import unicode_literals + import re import json from .common import InfoExtractor +from .youtube import YoutubeIE from ..utils import ( clean_html, + ExtractorError, get_element_by_id, ) class TechTVMITIE(InfoExtractor): - IE_NAME = u'techtv.mit.edu' - _VALID_URL = r'https?://techtv\.mit\.edu/(videos|embeds)/(?P\d+)' + IE_NAME = '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', + 'url': 'http://techtv.mit.edu/videos/25418-mit-dna-learning-center-set', + 'md5': '00a3a27ee20d44bcaa0933ccec4a2cf7', + 'info_dict': { + 'id': '25418', + 'ext': 'mp4', + 'title': 'MIT DNA and Protein Sets', + 'description': 'md5:46f5c69ce434f0a97e7c628cc142802d', }, } def _real_extract(self, url): - mobj = re.match(self._VALID_URL, url) - video_id = mobj.group('id') + video_id = self._match_id(url) 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) + clean_page = re.compile(r'', re.S).sub('', 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') + base_url = self._proto_relative_url(self._search_regex( + r'ipadUrl: \'(.+?cloudfront.net/)', raw_page, 'base url'), 'http:') + formats_json = self._search_regex( + r'bitrates: (\[.+?\])', raw_page, 'video formats') formats_mit = json.loads(formats_json) formats = [ { @@ -48,36 +52,81 @@ class TechTVMITIE(InfoExtractor): 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) + thumbnail = self._search_regex( + r'playlist:.*?url: \'(.+?)\'', + raw_page, 'thumbnail', flags=re.DOTALL) - return {'id': video_id, - 'title': title, - 'formats': formats, - 'description': description, - 'thumbnail': thumbnail, - } + 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[^/]+)' +class OCWMITIE(InfoExtractor): + IE_NAME = 'ocw.mit.edu' + _VALID_URL = r'^https?://ocw\.mit\.edu/courses/(?P<topic>[a-z0-9\-]+)' + _BASE_URL = 'http://ocw.mit.edu/' - _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', + _TESTS = [ + { + 'url': '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/', + 'info_dict': { + 'id': 'EObHWIEKGjA', + 'ext': 'webm', + 'title': 'Lecture 7: Multiple Discrete Random Variables: Expectations, Conditioning, Independence', + 'description': 'In this lecture, the professor discussed multiple random variables, expectations, and binomial distribution.', + 'upload_date': '20121109', + 'uploader_id': 'MIT', + 'uploader': 'MIT OpenCourseWare', + } }, - } + { + 'url': '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/', + 'info_dict': { + 'id': '7K1sB05pE0A', + 'ext': 'mp4', + 'title': 'Session 1: Introduction to Derivatives', + 'upload_date': '20090818', + 'uploader_id': 'MIT', + 'uploader': 'MIT OpenCourseWare', + 'description': 'This section contains lecture video excerpts, lecture notes, an interactive mathlet with supporting documents, and problem solving videos.', + } + } + ] 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') + topic = mobj.group('topic') + + webpage = self._download_webpage(url, topic) + title = self._html_search_meta('WT.cg_s', webpage) + description = self._html_search_meta('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'[\'"]', '', embed_chapter_media.group(1)) + metadata = re.split(r', ?', metadata) + yt = metadata[1] + 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'[\'"]', '', embed_media.group(1)) + metadata = re.split(r', ?', metadata) + yt = metadata[1] + else: + raise ExtractorError('Unable to find embedded YouTube video.') + video_id = YoutubeIE.extract_id(yt) + + return { + '_type': 'url_transparent', + 'id': video_id, + 'title': title, + 'description': description, + 'url': yt, + 'ie_key': 'Youtube', + }