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82 lines
2.7 KiB
Python
82 lines
2.7 KiB
Python
from __future__ import unicode_literals
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import re
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from .common import InfoExtractor
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from ..utils import (
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unified_strdate,
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)
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class KhanAcademyIE(InfoExtractor):
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_VALID_URL = r'^https?://(?:(?:www|api)\.)?khanacademy\.org/(?P<key>[^/]+)/(?:[^/]+/){,2}(?P<id>[^?#/]+)(?:$|[?#])'
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IE_NAME = 'KhanAcademy'
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_TESTS = [{
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'url': 'http://www.khanacademy.org/video/one-time-pad',
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'md5': '7b391cce85e758fb94f763ddc1bbb979',
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'info_dict': {
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'id': 'one-time-pad',
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'ext': 'webm',
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'title': 'The one-time pad',
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'description': 'The perfect cipher',
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'duration': 176,
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'uploader': 'Brit Cruise',
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'uploader_id': 'khanacademy',
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'upload_date': '20120411',
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},
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'add_ie': ['Youtube'],
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}, {
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'url': 'https://www.khanacademy.org/math/applied-math/cryptography',
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'info_dict': {
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'id': 'cryptography',
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'title': 'Journey into cryptography',
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'description': 'How have humans protected their secret messages through history? What has changed today?',
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},
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'playlist_mincount': 3,
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}]
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def _real_extract(self, url):
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m = re.match(self._VALID_URL, url)
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video_id = m.group('id')
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if m.group('key') == 'video':
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data = self._download_json(
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'http://api.khanacademy.org/api/v1/videos/' + video_id,
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video_id, 'Downloading video info')
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upload_date = unified_strdate(data['date_added'])
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uploader = ', '.join(data['author_names'])
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return {
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'_type': 'url_transparent',
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'url': data['url'],
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'id': video_id,
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'title': data['title'],
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'thumbnail': data['image_url'],
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'duration': data['duration'],
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'description': data['description'],
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'uploader': uploader,
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'upload_date': upload_date,
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}
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else:
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# topic
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data = self._download_json(
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'http://api.khanacademy.org/api/v1/topic/' + video_id,
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video_id, 'Downloading topic info')
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entries = [
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{
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'_type': 'url',
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'url': c['url'],
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'id': c['id'],
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'title': c['title'],
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}
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for c in data['children'] if c['kind'] in ('Video', 'Topic')]
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return {
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'_type': 'playlist',
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'id': video_id,
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'title': data['title'],
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'description': data['description'],
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'entries': entries,
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}
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