youtube-dl/youtube_dl/extractor/egghead.py

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# coding: utf-8
from __future__ import unicode_literals
from .common import InfoExtractor
from ..compat import compat_str
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from ..utils import (
determine_ext,
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int_or_none,
try_get,
unified_timestamp,
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url_or_none,
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)
class EggheadBaseIE(InfoExtractor):
def _call_api(self, path, video_id, resource, fatal=True):
return self._download_json(
'https://app.egghead.io/api/v1/' + path,
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video_id, 'Downloading %s JSON' % resource, fatal=fatal)
class EggheadCourseIE(EggheadBaseIE):
IE_DESC = 'egghead.io course'
IE_NAME = 'egghead:course'
_VALID_URL = r'https://(?:app\.)?egghead\.io/(?:course|playlist)s/(?P<id>[^/?#&]+)'
_TESTS = [{
'url': 'https://egghead.io/courses/professor-frisby-introduces-composable-functional-javascript',
'playlist_count': 29,
'info_dict': {
'id': '432655',
'title': 'Professor Frisby Introduces Composable Functional JavaScript',
'description': 're:(?s)^This course teaches the ubiquitous.*You\'ll start composing functionality before you know it.$',
},
}, {
'url': 'https://app.egghead.io/playlists/professor-frisby-introduces-composable-functional-javascript',
'only_matching': True,
}]
def _real_extract(self, url):
playlist_id = self._match_id(url)
series_path = 'series/' + playlist_id
lessons = self._call_api(
series_path + '/lessons', playlist_id, 'course lessons')
entries = []
for lesson in lessons:
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lesson_url = url_or_none(lesson.get('http_url'))
if not lesson_url:
continue
lesson_id = lesson.get('id')
if lesson_id:
lesson_id = compat_str(lesson_id)
entries.append(self.url_result(
lesson_url, ie=EggheadLessonIE.ie_key(), video_id=lesson_id))
course = self._call_api(
series_path, playlist_id, 'course', False) or {}
playlist_id = course.get('id')
if playlist_id:
playlist_id = compat_str(playlist_id)
return self.playlist_result(
entries, playlist_id, course.get('title'),
course.get('description'))
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class EggheadLessonIE(EggheadBaseIE):
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IE_DESC = 'egghead.io lesson'
IE_NAME = 'egghead:lesson'
_VALID_URL = r'https://(?:app\.)?egghead\.io/(?:api/v1/)?lessons/(?P<id>[^/?#&]+)'
_TESTS = [{
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'url': 'https://egghead.io/lessons/javascript-linear-data-flow-with-container-style-types-box',
'info_dict': {
'id': '1196',
'display_id': 'javascript-linear-data-flow-with-container-style-types-box',
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'ext': 'mp4',
'title': 'Create linear data flow with container style types (Box)',
'description': 'md5:9aa2cdb6f9878ed4c39ec09e85a8150e',
'thumbnail': r're:^https?:.*\.jpg$',
'timestamp': 1481296768,
'upload_date': '20161209',
'duration': 304,
'view_count': 0,
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'tags': 'count:2',
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},
'params': {
'skip_download': True,
'format': 'bestvideo',
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},
}, {
'url': 'https://egghead.io/api/v1/lessons/react-add-redux-to-a-react-application',
'only_matching': True,
}, {
'url': 'https://app.egghead.io/lessons/javascript-linear-data-flow-with-container-style-types-box',
'only_matching': True,
}]
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def _real_extract(self, url):
display_id = self._match_id(url)
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lesson = self._call_api(
'lessons/' + display_id, display_id, 'lesson')
lesson_id = compat_str(lesson['id'])
title = lesson['title']
formats = []
for _, format_url in lesson['media_urls'].items():
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format_url = url_or_none(format_url)
if not format_url:
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)
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return {
'id': lesson_id,
'display_id': display_id,
'title': title,
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'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,
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}