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

   1 # coding: utf-8
   2 from __future__ import unicode_literals
   3
   4 import re
   5
   6 from .common import InfoExtractor
   7 from ..compat import compat_str
   8 from ..utils import (
   9     determine_ext,
  10     extract_attributes,
  11     ExtractorError,
  12     float_or_none,
  13     int_or_none,
  14     str_or_none,
  15     url_or_none,
  16     urlencode_postdata,
  17     urljoin,
  18 )
  19
  20
  21 class LecturioBaseIE(InfoExtractor):
  22     _LOGIN_URL = 'https://app.lecturio.com/en/login'
  23     _NETRC_MACHINE = 'lecturio'
  24
  25     def _real_initialize(self):
  26         self._login()
  27
  28     def _login(self):
  29         username, password = self._get_login_info()
  30         if username is None:
  31             return
  32
  33         # Sets some cookies
  34         _, urlh = self._download_webpage_handle(
  35             self._LOGIN_URL, None, 'Downloading login popup')
  36
  37         def is_logged(url_handle):
  38             return self._LOGIN_URL not in compat_str(url_handle.geturl())
  39
  40         # Already logged in
  41         if is_logged(urlh):
  42             return
  43
  44         login_form = {
  45             'signin[email]': username,
  46             'signin[password]': password,
  47             'signin[remember]': 'on',
  48         }
  49
  50         response, urlh = self._download_webpage_handle(
  51             self._LOGIN_URL, None, 'Logging in',
  52             data=urlencode_postdata(login_form))
  53
  54         # Logged in successfully
  55         if is_logged(urlh):
  56             return
  57
  58         errors = self._html_search_regex(
  59             r'(?s)<ul[^>]+class=["\']error_list[^>]+>(.+?)</ul>', response,
  60             'errors', default=None)
  61         if errors:
  62             raise ExtractorError('Unable to login: %s' % errors, expected=True)
  63         raise ExtractorError('Unable to log in')
  64
  65
  66 class LecturioIE(LecturioBaseIE):
  67     _VALID_URL = r'''(?x)
  68                     https://
  69                         (?:
  70                             app\.lecturio\.com/[^/]+/(?P<id>[^/?#&]+)\.lecture|
  71                             (?:www\.)?lecturio\.de/[^/]+/(?P<id_de>[^/?#&]+)\.vortrag
  72                         )
  73                     '''
  74     _TESTS = [{
  75         'url': 'https://app.lecturio.com/medical-courses/important-concepts-and-terms-introduction-to-microbiology.lecture#tab/videos',
  76         'md5': 'f576a797a5b7a5e4e4bbdfc25a6a6870',
  77         'info_dict': {
  78             'id': '39634',
  79             'ext': 'mp4',
  80             'title': 'Important Concepts and Terms – Introduction to Microbiology',
  81         },
  82         'skip': 'Requires lecturio account credentials',
  83     }, {
  84         'url': 'https://www.lecturio.de/jura/oeffentliches-recht-staatsexamen.vortrag',
  85         'only_matching': True,
  86     }]
  87
  88     _CC_LANGS = {
  89         'German': 'de',
  90         'English': 'en',
  91         'Spanish': 'es',
  92         'French': 'fr',
  93         'Polish': 'pl',
  94         'Russian': 'ru',
  95     }
  96
  97     def _real_extract(self, url):
  98         mobj = re.match(self._VALID_URL, url)
  99         display_id = mobj.group('id') or mobj.group('id_de')
 100
 101         webpage = self._download_webpage(
 102             'https://app.lecturio.com/en/lecture/%s/player.html' % display_id,
 103             display_id)
 104
 105         lecture_id = self._search_regex(
 106             r'lecture_id\s*=\s*(?:L_)?(\d+)', webpage, 'lecture id')
 107
 108         api_url = self._search_regex(
 109             r'lectureDataLink\s*:\s*(["\'])(?P<url>(?:(?!\1).)+)\1', webpage,
 110             'api url', group='url')
 111
 112         video = self._download_json(api_url, display_id)
 113
 114         title = video['title'].strip()
 115
 116         formats = []
 117         for format_ in video['content']['media']:
 118             if not isinstance(format_, dict):
 119                 continue
 120             file_ = format_.get('file')
 121             if not file_:
 122                 continue
 123             ext = determine_ext(file_)
 124             if ext == 'smil':
 125                 # smil contains only broken RTMP formats anyway
 126                 continue
 127             file_url = url_or_none(file_)
 128             if not file_url:
 129                 continue
 130             label = str_or_none(format_.get('label'))
 131             filesize = int_or_none(format_.get('fileSize'))
 132             formats.append({
 133                 'url': file_url,
 134                 'format_id': label,
 135                 'filesize': float_or_none(filesize, invscale=1000)
 136             })
 137         self._sort_formats(formats)
 138
 139         subtitles = {}
 140         automatic_captions = {}
 141         cc = self._parse_json(
 142             self._search_regex(
 143                 r'subtitleUrls\s*:\s*({.+?})\s*,', webpage, 'subtitles',
 144                 default='{}'), display_id, fatal=False)
 145         for cc_label, cc_url in cc.items():
 146             cc_url = url_or_none(cc_url)
 147             if not cc_url:
 148                 continue
 149             lang = self._search_regex(
 150                 r'/([a-z]{2})_', cc_url, 'lang',
 151                 default=cc_label.split()[0] if cc_label else 'en')
 152             original_lang = self._search_regex(
 153                 r'/[a-z]{2}_([a-z]{2})_', cc_url, 'original lang',
 154                 default=None)
 155             sub_dict = (automatic_captions
 156                         if 'auto-translated' in cc_label or original_lang
 157                         else subtitles)
 158             sub_dict.setdefault(self._CC_LANGS.get(lang, lang), []).append({
 159                 'url': cc_url,
 160             })
 161
 162         return {
 163             'id': lecture_id,
 164             'title': title,
 165             'formats': formats,
 166             'subtitles': subtitles,
 167             'automatic_captions': automatic_captions,
 168         }
 169
 170
 171 class LecturioCourseIE(LecturioBaseIE):
 172     _VALID_URL = r'https://app\.lecturio\.com/[^/]+/(?P<id>[^/?#&]+)\.course'
 173     _TEST = {
 174         'url': 'https://app.lecturio.com/medical-courses/microbiology-introduction.course#/',
 175         'info_dict': {
 176             'id': 'microbiology-introduction',
 177             'title': 'Microbiology: Introduction',
 178         },
 179         'playlist_count': 45,
 180         'skip': 'Requires lecturio account credentials',
 181     }
 182
 183     def _real_extract(self, url):
 184         display_id = self._match_id(url)
 185
 186         webpage = self._download_webpage(url, display_id)
 187
 188         entries = []
 189         for mobj in re.finditer(
 190                 r'(?s)<[^>]+\bdata-url=(["\'])(?:(?!\1).)+\.lecture\b[^>]+>',
 191                 webpage):
 192             params = extract_attributes(mobj.group(0))
 193             lecture_url = urljoin(url, params.get('data-url'))
 194             lecture_id = params.get('data-id')
 195             entries.append(self.url_result(
 196                 lecture_url, ie=LecturioIE.ie_key(), video_id=lecture_id))
 197
 198         title = self._search_regex(
 199             r'<span[^>]+class=["\']content-title[^>]+>([^<]+)', webpage,
 200             'title', default=None)
 201
 202         return self.playlist_result(entries, display_id, title)
 203
 204
 205 class LecturioDeCourseIE(LecturioBaseIE):
 206     _VALID_URL = r'https://(?:www\.)?lecturio\.de/[^/]+/(?P<id>[^/?#&]+)\.kurs'
 207     _TEST = {
 208         'url': 'https://www.lecturio.de/jura/grundrechte.kurs',
 209         'only_matching': True,
 210     }
 211
 212     def _real_extract(self, url):
 213         display_id = self._match_id(url)
 214
 215         webpage = self._download_webpage(url, display_id)
 216
 217         entries = []
 218         for mobj in re.finditer(
 219                 r'(?s)<td[^>]+\bdata-lecture-id=["\'](?P<id>\d+).+?\bhref=(["\'])(?P<url>(?:(?!\2).)+\.vortrag)\b[^>]+>',
 220                 webpage):
 221             lecture_url = urljoin(url, mobj.group('url'))
 222             lecture_id = mobj.group('id')
 223             entries.append(self.url_result(
 224                 lecture_url, ie=LecturioIE.ie_key(), video_id=lecture_id))
 225
 226         title = self._search_regex(
 227             r'<h1[^>]*>([^<]+)', webpage, 'title', default=None)
 228
 229         return self.playlist_result(entries, display_id, title)