yt_dlp/extractor/egghead.py

   1 # coding: utf-8
   2 from __future__ import unicode_literals
   3
   4 from .common import InfoExtractor
   5 from ..compat import compat_str
   6 from ..utils import (
   7     determine_ext,
   8     int_or_none,
   9     try_get,
  10     unified_timestamp,
  11     url_or_none,
  12 )
  13
  14
  15 class EggheadBaseIE(InfoExtractor):
  16     def _call_api(self, path, video_id, resource, fatal=True):
  17         return self._download_json(
  18             'https://app.egghead.io/api/v1/' + path,
  19             video_id, 'Downloading %s JSON' % resource, fatal=fatal)
  20
  21
  22 class EggheadCourseIE(EggheadBaseIE):
  23     IE_DESC = 'egghead.io course'
  24     IE_NAME = 'egghead:course'
  25     _VALID_URL = r'https://(?:app\.)?egghead\.io/(?:course|playlist)s/(?P<id>[^/?#&]+)'
  26     _TESTS = [{
  27         'url': 'https://egghead.io/courses/professor-frisby-introduces-composable-functional-javascript',
  28         'playlist_count': 29,
  29         'info_dict': {
  30             'id': '432655',
  31             'title': 'Professor Frisby Introduces Composable Functional JavaScript',
  32             'description': 're:(?s)^This course teaches the ubiquitous.*You\'ll start composing functionality before you know it.$',
  33         },
  34     }, {
  35         'url': 'https://app.egghead.io/playlists/professor-frisby-introduces-composable-functional-javascript',
  36         'only_matching': True,
  37     }]
  38
  39     def _real_extract(self, url):
  40         playlist_id = self._match_id(url)
  41         series_path = 'series/' + playlist_id
  42         lessons = self._call_api(
  43             series_path + '/lessons', playlist_id, 'course lessons')
  44
  45         entries = []
  46         for lesson in lessons:
  47             lesson_url = url_or_none(lesson.get('http_url'))
  48             if not lesson_url:
  49                 continue
  50             lesson_id = lesson.get('id')
  51             if lesson_id:
  52                 lesson_id = compat_str(lesson_id)
  53             entries.append(self.url_result(
  54                 lesson_url, ie=EggheadLessonIE.ie_key(), video_id=lesson_id))
  55
  56         course = self._call_api(
  57             series_path, playlist_id, 'course', False) or {}
  58
  59         playlist_id = course.get('id')
  60         if playlist_id:
  61             playlist_id = compat_str(playlist_id)
  62
  63         return self.playlist_result(
  64             entries, playlist_id, course.get('title'),
  65             course.get('description'))
  66
  67
  68 class EggheadLessonIE(EggheadBaseIE):
  69     IE_DESC = 'egghead.io lesson'
  70     IE_NAME = 'egghead:lesson'
  71     _VALID_URL = r'https://(?:app\.)?egghead\.io/(?:api/v1/)?lessons/(?P<id>[^/?#&]+)'
  72     _TESTS = [{
  73         'url': 'https://egghead.io/lessons/javascript-linear-data-flow-with-container-style-types-box',
  74         'info_dict': {
  75             'id': '1196',
  76             'display_id': 'javascript-linear-data-flow-with-container-style-types-box',
  77             'ext': 'mp4',
  78             'title': 'Create linear data flow with container style types (Box)',
  79             'description': 'md5:9aa2cdb6f9878ed4c39ec09e85a8150e',
  80             'thumbnail': r're:^https?:.*\.jpg$',
  81             'timestamp': 1481296768,
  82             'upload_date': '20161209',
  83             'duration': 304,
  84             'view_count': 0,
  85             'tags': 'count:2',
  86         },
  87         'params': {
  88             'skip_download': True,
  89         },
  90     }, {
  91         'url': 'https://egghead.io/api/v1/lessons/react-add-redux-to-a-react-application',
  92         'only_matching': True,
  93     }, {
  94         'url': 'https://app.egghead.io/lessons/javascript-linear-data-flow-with-container-style-types-box',
  95         'only_matching': True,
  96     }]
  97
  98     def _real_extract(self, url):
  99         display_id = self._match_id(url)
 100
 101         lesson = self._call_api(
 102             'lessons/' + display_id, display_id, 'lesson')
 103
 104         lesson_id = compat_str(lesson['id'])
 105         title = lesson['title']
 106
 107         formats = []
 108         for _, format_url in lesson['media_urls'].items():
 109             format_url = url_or_none(format_url)
 110             if not format_url:
 111                 continue
 112             ext = determine_ext(format_url)
 113             if ext == 'm3u8':
 114                 formats.extend(self._extract_m3u8_formats(
 115                     format_url, lesson_id, 'mp4', m3u8_id='hls', fatal=False))
 116             elif ext == 'mpd':
 117                 formats.extend(self._extract_mpd_formats(
 118                     format_url, lesson_id, mpd_id='dash', fatal=False))
 119             else:
 120                 formats.append({
 121                     'url': format_url,
 122                 })
 123         self._sort_formats(formats)
 124
 125         return {
 126             'id': lesson_id,
 127             'display_id': display_id,
 128             'title': title,
 129             'description': lesson.get('summary'),
 130             'thumbnail': lesson.get('thumb_nail'),
 131             'timestamp': unified_timestamp(lesson.get('published_at')),
 132             'duration': int_or_none(lesson.get('duration')),
 133             'view_count': int_or_none(lesson.get('plays_count')),
 134             'tags': try_get(lesson, lambda x: x['tag_list'], list),
 135             'series': try_get(
 136                 lesson, lambda x: x['series']['title'], compat_str),
 137             'formats': formats,
 138         }