_ Git - youtube-dl/blob - youtube_dl/extractor/microsoftvirtualacademy.py

   1 from __future__ import unicode_literals
   2
   3 import re
   4
   5 from .common import InfoExtractor
   6 from ..compat import (
   7     compat_xpath,
   8 )
   9 from ..utils import (
  10     int_or_none,
  11     parse_duration,
  12     smuggle_url,
  13     unsmuggle_url,
  14     xpath_text,
  15 )
  16
  17
  18 class MicrosoftVirtualAcademyBaseIE(InfoExtractor):
  19     def _extract_base_url(self, course_id, display_id):
  20         return self._download_json(
  21             'https://api-mlxprod.microsoft.com/services/products/anonymous/%s' % course_id,
  22             display_id, 'Downloading course base URL')
  23
  24     def _extract_chapter_and_title(self, title):
  25         if not title:
  26             return None, None
  27         m = re.search(r'(?P<chapter>\d+)\s*\|\s*(?P<title>.+)', title)
  28         return (int(m.group('chapter')), m.group('title')) if m else (None, title)
  29
  30
  31 class MicrosoftVirtualAcademyIE(MicrosoftVirtualAcademyBaseIE):
  32     IE_NAME = 'mva'
  33     IE_DESC = 'Microsoft Virtual Academy videos'
  34     _VALID_URL = r'(?:%s:|https?://(?:mva\.microsoft|(?:www\.)?microsoftvirtualacademy)\.com/[^/]+/training-courses/[^/?#&]+-)(?P<course_id>\d+)(?::|\?l=)(?P<id>[\da-zA-Z]+_\d+)' % IE_NAME
  35
  36     _TESTS = [{
  37         'url': 'https://mva.microsoft.com/en-US/training-courses/microsoft-azure-fundamentals-virtual-machines-11788?l=gfVXISmEB_6804984382',
  38         'md5': '7826c44fc31678b12ad8db11f6b5abb9',
  39         'info_dict': {
  40             'id': 'gfVXISmEB_6804984382',
  41             'ext': 'mp4',
  42             'title': 'Course Introduction',
  43             'formats': 'mincount:3',
  44             'subtitles': {
  45                 'en': [{
  46                     'ext': 'ttml',
  47                 }],
  48             },
  49         }
  50     }, {
  51         'url': 'mva:11788:gfVXISmEB_6804984382',
  52         'only_matching': True,
  53     }]
  54
  55     def _real_extract(self, url):
  56         url, smuggled_data = unsmuggle_url(url, {})
  57
  58         mobj = re.match(self._VALID_URL, url)
  59         course_id = mobj.group('course_id')
  60         video_id = mobj.group('id')
  61
  62         base_url = smuggled_data.get('base_url') or self._extract_base_url(course_id, video_id)
  63
  64         settings = self._download_xml(
  65             '%s/content/content_%s/videosettings.xml?v=1' % (base_url, video_id),
  66             video_id, 'Downloading video settings XML')
  67
  68         _, title = self._extract_chapter_and_title(xpath_text(
  69             settings, './/Title', 'title', fatal=True))
  70
  71         formats = []
  72
  73         for sources in settings.findall(compat_xpath('.//MediaSources')):
  74             sources_type = sources.get('videoType')
  75             for source in sources.findall(compat_xpath('./MediaSource')):
  76                 video_url = source.text
  77                 if not video_url or not video_url.startswith('http'):
  78                     continue
  79                 if sources_type == 'smoothstreaming':
  80                     formats.extend(self._extract_ism_formats(
  81                         video_url, video_id, 'mss', fatal=False))
  82                     continue
  83                 video_mode = source.get('videoMode')
  84                 height = int_or_none(self._search_regex(
  85                     r'^(\d+)[pP]$', video_mode or '', 'height', default=None))
  86                 codec = source.get('codec')
  87                 acodec, vcodec = [None] * 2
  88                 if codec:
  89                     codecs = codec.split(',')
  90                     if len(codecs) == 2:
  91                         acodec, vcodec = codecs
  92                     elif len(codecs) == 1:
  93                         vcodec = codecs[0]
  94                 formats.append({
  95                     'url': video_url,
  96                     'format_id': video_mode,
  97                     'height': height,
  98                     'acodec': acodec,
  99                     'vcodec': vcodec,
 100                 })
 101         self._sort_formats(formats)
 102
 103         subtitles = {}
 104         for source in settings.findall(compat_xpath('.//MarkerResourceSource')):
 105             subtitle_url = source.text
 106             if not subtitle_url:
 107                 continue
 108             subtitles.setdefault('en', []).append({
 109                 'url': '%s/%s' % (base_url, subtitle_url),
 110                 'ext': source.get('type'),
 111             })
 112
 113         return {
 114             'id': video_id,
 115             'title': title,
 116             'subtitles': subtitles,
 117             'formats': formats
 118         }
 119
 120
 121 class MicrosoftVirtualAcademyCourseIE(MicrosoftVirtualAcademyBaseIE):
 122     IE_NAME = 'mva:course'
 123     IE_DESC = 'Microsoft Virtual Academy courses'
 124     _VALID_URL = r'(?:%s:|https?://(?:mva\.microsoft|(?:www\.)?microsoftvirtualacademy)\.com/[^/]+/training-courses/(?P<display_id>[^/?#&]+)-)(?P<id>\d+)' % IE_NAME
 125
 126     _TESTS = [{
 127         'url': 'https://mva.microsoft.com/en-US/training-courses/microsoft-azure-fundamentals-virtual-machines-11788',
 128         'info_dict': {
 129             'id': '11788',
 130             'title': 'Microsoft Azure Fundamentals: Virtual Machines',
 131         },
 132         'playlist_count': 36,
 133     }, {
 134         # with emphasized chapters
 135         'url': 'https://mva.microsoft.com/en-US/training-courses/developing-windows-10-games-with-construct-2-16335',
 136         'info_dict': {
 137             'id': '16335',
 138             'title': 'Developing Windows 10 Games with Construct 2',
 139         },
 140         'playlist_count': 10,
 141     }, {
 142         'url': 'https://www.microsoftvirtualacademy.com/en-US/training-courses/microsoft-azure-fundamentals-virtual-machines-11788',
 143         'only_matching': True,
 144     }, {
 145         'url': 'mva:course:11788',
 146         'only_matching': True,
 147     }]
 148
 149     @classmethod
 150     def suitable(cls, url):
 151         return False if MicrosoftVirtualAcademyIE.suitable(url) else super(
 152             MicrosoftVirtualAcademyCourseIE, cls).suitable(url)
 153
 154     def _real_extract(self, url):
 155         mobj = re.match(self._VALID_URL, url)
 156         course_id = mobj.group('id')
 157         display_id = mobj.group('display_id')
 158
 159         base_url = self._extract_base_url(course_id, display_id)
 160
 161         manifest = self._download_json(
 162             '%s/imsmanifestlite.json' % base_url,
 163             display_id, 'Downloading course manifest JSON')['manifest']
 164
 165         organization = manifest['organizations']['organization'][0]
 166
 167         entries = []
 168         for chapter in organization['item']:
 169             chapter_number, chapter_title = self._extract_chapter_and_title(chapter.get('title'))
 170             chapter_id = chapter.get('@identifier')
 171             for item in chapter.get('item', []):
 172                 item_id = item.get('@identifier')
 173                 if not item_id:
 174                     continue
 175                 metadata = item.get('resource', {}).get('metadata') or {}
 176                 if metadata.get('learningresourcetype') != 'Video':
 177                     continue
 178                 _, title = self._extract_chapter_and_title(item.get('title'))
 179                 duration = parse_duration(metadata.get('duration'))
 180                 description = metadata.get('description')
 181                 entries.append({
 182                     '_type': 'url_transparent',
 183                     'url': smuggle_url(
 184                         'mva:%s:%s' % (course_id, item_id), {'base_url': base_url}),
 185                     'title': title,
 186                     'description': description,
 187                     'duration': duration,
 188                     'chapter': chapter_title,
 189                     'chapter_number': chapter_number,
 190                     'chapter_id': chapter_id,
 191                 })
 192
 193         title = organization.get('title') or manifest.get('metadata', {}).get('title')
 194
 195         return self.playlist_result(entries, course_id, title)