[egghead] Fix extraction (closes #14388)

youtube_dl/extractor/egghead.py

@@ -2,7 +2,9 @@
 from __future__ import unicode_literals
 
 from .common import InfoExtractor
+from ..compat import compat_str
 from ..utils import (
+    determine_ext,
     int_or_none,
     try_get,
     unified_timestamp,
@@ -17,7 +19,7 @@ class EggheadCourseIE(InfoExtractor):
         'url': 'https://egghead.io/courses/professor-frisby-introduces-composable-functional-javascript',
         'playlist_count': 29,
         'info_dict': {
-            'id': 'professor-frisby-introduces-composable-functional-javascript',
+            'id': '72',
             'title': 'Professor Frisby Introduces Composable Functional JavaScript',
             'description': 're:(?s)^This course teaches the ubiquitous.*You\'ll start composing functionality before you know it.$',
         },
@@ -26,14 +28,28 @@ class EggheadCourseIE(InfoExtractor):
     def _real_extract(self, url):
         playlist_id = self._match_id(url)
 
+        lessons = self._download_json(
+            'https://egghead.io/api/v1/series/%s/lessons' % playlist_id,
+            playlist_id, 'Downloading course lessons JSON')
+
+        entries = []
+        for lesson in lessons:
+            lesson_url = lesson.get('http_url')
+            if not lesson_url or not isinstance(lesson_url, compat_str):
+                continue
+            lesson_id = lesson.get('id')
+            if lesson_id:
+                lesson_id = compat_str(lesson_id)
+            entries.append(self.url_result(
+                lesson_url, ie=EggheadLessonIE.ie_key(), video_id=lesson_id))
+
         course = self._download_json(
-            'https://egghead.io/api/v1/series/%s' % playlist_id, playlist_id)
+            'https://egghead.io/api/v1/series/%s' % playlist_id,
+            playlist_id, 'Downloading course JSON', fatal=False) or {}
 
-        entries = [
-            self.url_result(
-                'wistia:%s' % lesson['wistia_id'], ie='Wistia',
-                video_id=lesson['wistia_id'], video_title=lesson.get('title'))
-            for lesson in course['lessons'] if lesson.get('wistia_id')]
+        playlist_id = course.get('id')
+        if playlist_id:
+            playlist_id = compat_str(playlist_id)
 
         return self.playlist_result(
             entries, playlist_id, course.get('title'),
@@ -43,11 +59,12 @@ class EggheadCourseIE(InfoExtractor):
 class EggheadLessonIE(InfoExtractor):
     IE_DESC = 'egghead.io lesson'
     IE_NAME = 'egghead:lesson'
-    _VALID_URL = r'https://egghead\.io/lessons/(?P<id>[^/?#&]+)'
-    _TEST = {
+    _VALID_URL = r'https://egghead\.io/(?:api/v1/)?lessons/(?P<id>[^/?#&]+)'
+    _TESTS = [{
         'url': 'https://egghead.io/lessons/javascript-linear-data-flow-with-container-style-types-box',
         'info_dict': {
-            'id': 'fv5yotjxcg',
+            'id': '1196',
+            'display_id': 'javascript-linear-data-flow-with-container-style-types-box',
             'ext': 'mp4',
             'title': 'Create linear data flow with container style types (Box)',
             'description': 'md5:9aa2cdb6f9878ed4c39ec09e85a8150e',
@@ -60,25 +77,51 @@ class EggheadLessonIE(InfoExtractor):
         },
         'params': {
             'skip_download': True,
+            'format': 'bestvideo',
         },
-    }
+    }, {
+        'url': 'https://egghead.io/api/v1/lessons/react-add-redux-to-a-react-application',
+        'only_matching': True,
+    }]
 
     def _real_extract(self, url):
-        lesson_id = self._match_id(url)
+        display_id = self._match_id(url)
 
         lesson = self._download_json(
-            'https://egghead.io/api/v1/lessons/%s' % lesson_id, lesson_id)
+            'https://egghead.io/api/v1/lessons/%s' % display_id, display_id)
+
+        lesson_id = compat_str(lesson['id'])
+        title = lesson['title']
+
+        formats = []
+        for _, format_url in lesson['media_urls'].items():
+            if not format_url or not isinstance(format_url, compat_str):
+                continue
+            ext = determine_ext(format_url)
+            if ext == 'm3u8':
+                formats.extend(self._extract_m3u8_formats(
+                    format_url, lesson_id, 'mp4', entry_protocol='m3u8',
+                    m3u8_id='hls', fatal=False))
+            elif ext == 'mpd':
+                formats.extend(self._extract_mpd_formats(
+                    format_url, lesson_id, mpd_id='dash', fatal=False))
+            else:
+                formats.append({
+                    'url': format_url,
+                })
+        self._sort_formats(formats)
 
         return {
-            '_type': 'url_transparent',
-            'ie_key': 'Wistia',
-            'url': 'wistia:%s' % lesson['wistia_id'],
-            'id': lesson['wistia_id'],
-            'title': lesson.get('title'),
+            'id': lesson_id,
+            'display_id': display_id,
+            'title': title,
             'description': lesson.get('summary'),
             'thumbnail': lesson.get('thumb_nail'),
             'timestamp': unified_timestamp(lesson.get('published_at')),
             'duration': int_or_none(lesson.get('duration')),
             'view_count': int_or_none(lesson.get('plays_count')),
             'tags': try_get(lesson, lambda x: x['tag_list'], list),
+            'series': try_get(
+                lesson, lambda x: x['series']['title'], compat_str),
+            'formats': formats,
         }