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Merge branch 'ustream-embed-recorded2' of https://github.com/anovicecodemonkey/youtub...
[youtube-dl] / youtube_dl / extractor / udemy.py
1 from __future__ import unicode_literals
2
3 import re
4
5 from .common import InfoExtractor
6 from ..utils import (
7     compat_urllib_parse,
8     compat_urllib_request,
9     ExtractorError,
10 )
11
12
13 class UdemyIE(InfoExtractor):
14     IE_NAME = 'udemy'
15     _VALID_URL = r'https?://www\.udemy\.com/(?:[^#]+#/lecture/|lecture/view/?\?lectureId=)(?P<id>\d+)'
16     _LOGIN_URL = 'https://www.udemy.com/join/login-submit/'
17     _NETRC_MACHINE = 'udemy'
18
19     _TESTS = [{
20         'url': 'https://www.udemy.com/java-tutorial/#/lecture/172757',
21         'md5': '98eda5b657e752cf945d8445e261b5c5',
22         'info_dict': {
23             'id': '160614',
24             'ext': 'mp4',
25             'title': 'Introduction and Installation',
26             'description': 'md5:c0d51f6f21ef4ec65f091055a5eef876',
27             'duration': 579.29,
28         },
29         'skip': 'Requires udemy account credentials',
30     }]
31
32     def _handle_error(self, response):
33         if not isinstance(response, dict):
34             return
35         error = response.get('error')
36         if error:
37             error_str = 'Udemy returned error #%s: %s' % (error.get('code'), error.get('message'))
38             error_data = error.get('data')
39             if error_data:
40                 error_str += ' - %s' % error_data.get('formErrors')
41             raise ExtractorError(error_str, expected=True)
42
43     def _download_json(self, url, video_id, note='Downloading JSON metadata'):
44         response = super(UdemyIE, self)._download_json(url, video_id, note)
45         self._handle_error(response)
46         return response
47
48     def _real_initialize(self):
49         self._login()
50
51     def _login(self):
52         (username, password) = self._get_login_info()
53         if username is None:
54             raise ExtractorError(
55                 'Udemy account is required, use --username and --password options to provide account credentials.',
56                 expected=True)
57
58         login_popup = self._download_webpage(
59             'https://www.udemy.com/join/login-popup?displayType=ajax&showSkipButton=1', None,
60             'Downloading login popup')
61
62         if login_popup == '<div class="run-command close-popup redirect" data-url="https://www.udemy.com/"></div>':
63             return
64
65         csrf = self._html_search_regex(r'<input type="hidden" name="csrf" value="(.+?)"', login_popup, 'csrf token')
66
67         login_form = {
68             'email': username,
69             'password': password,
70             'csrf': csrf,
71             'displayType': 'json',
72             'isSubmitted': '1',
73         }
74         request = compat_urllib_request.Request(self._LOGIN_URL, compat_urllib_parse.urlencode(login_form))
75         response = self._download_json(request, None, 'Logging in as %s' % username)
76
77         if 'returnUrl' not in response:
78             raise ExtractorError('Unable to log in')
79
80     def _real_extract(self, url):
81         mobj = re.match(self._VALID_URL, url)
82         lecture_id = mobj.group('id')
83
84         lecture = self._download_json(
85             'https://www.udemy.com/api-1.1/lectures/%s' % lecture_id, lecture_id, 'Downloading lecture JSON')
86
87         if lecture['assetType'] != 'Video':
88             raise ExtractorError('Lecture %s is not a video' % lecture_id, expected=True)
89
90         asset = lecture['asset']
91
92         stream_url = asset['streamUrl']
93         mobj = re.search(r'(https?://www\.youtube\.com/watch\?v=.*)', stream_url)
94         if mobj:
95             return self.url_result(mobj.group(1), 'Youtube')
96
97         video_id = asset['id']
98         thumbnail = asset['thumbnailUrl']
99         duration = asset['data']['duration']
100
101         download_url = asset['downloadUrl']
102
103         formats = [
104             {
105                 'url': download_url['Video480p'][0],
106                 'format_id': '360p',
107             },
108             {
109                 'url': download_url['Video'][0],
110                 'format_id': '720p',
111             },
112         ]
113
114         title = lecture['title']
115         description = lecture['description']
116
117         return {
118             'id': video_id,
119             'title': title,
120             'description': description,
121             'thumbnail': thumbnail,
122             'duration': duration,
123             'formats': formats
124         }
125
126
127 class UdemyCourseIE(UdemyIE):
128     IE_NAME = 'udemy:course'
129     _VALID_URL = r'https?://www\.udemy\.com/(?P<coursepath>[\da-z-]+)'
130     _SUCCESSFULLY_ENROLLED = '>You have enrolled in this course!<'
131     _ALREADY_ENROLLED = '>You are already taking this course.<'
132     _TESTS = []
133
134     @classmethod
135     def suitable(cls, url):
136         return False if UdemyIE.suitable(url) else super(UdemyCourseIE, cls).suitable(url)
137
138     def _real_extract(self, url):
139         mobj = re.match(self._VALID_URL, url)
140         course_path = mobj.group('coursepath')
141
142         response = self._download_json(
143             'https://www.udemy.com/api-1.1/courses/%s' % course_path, course_path, 'Downloading course JSON')
144
145         course_id = int(response['id'])
146         course_title = response['title']
147
148         webpage = self._download_webpage(
149             'https://www.udemy.com/course/subscribe/?courseId=%s' % course_id, course_id, 'Enrolling in the course')
150
151         if self._SUCCESSFULLY_ENROLLED in webpage:
152             self.to_screen('%s: Successfully enrolled in' % course_id)
153         elif self._ALREADY_ENROLLED in webpage:
154             self.to_screen('%s: Already enrolled in' % course_id)
155
156         response = self._download_json('https://www.udemy.com/api-1.1/courses/%s/curriculum' % course_id,
157             course_id, 'Downloading course curriculum')
158
159         entries = [
160             self.url_result('https://www.udemy.com/%s/#/lecture/%s' % (course_path, asset['id']), 'Udemy')
161             for asset in response if asset.get('assetType') == 'Video'
162         ]
163
164         return self.playlist_result(entries, course_id, course_title)