1 from __future__
import unicode_literals
3 from .common
import InfoExtractor
17 class UdemyIE(InfoExtractor
):
19 _VALID_URL
= r
'https?://www\.udemy\.com/(?:[^#]+#/lecture/|lecture/view/?\?lectureId=)(?P<id>\d+)'
20 _LOGIN_URL
= 'https://www.udemy.com/join/login-popup/?displayType=ajax&showSkipButton=1'
21 _ORIGIN_URL
= 'https://www.udemy.com'
22 _SUCCESSFULLY_ENROLLED
= '>You have enrolled in this course!<'
23 _ALREADY_ENROLLED
= '>You are already taking this course.<'
24 _NETRC_MACHINE
= 'udemy'
27 'url': 'https://www.udemy.com/java-tutorial/#/lecture/172757',
28 'md5': '98eda5b657e752cf945d8445e261b5c5',
32 'title': 'Introduction and Installation',
33 'description': 'md5:c0d51f6f21ef4ec65f091055a5eef876',
36 'skip': 'Requires udemy account credentials',
39 def _enroll_course(self
, webpage
, course_id
):
40 enroll_url
= self
._search
_regex
(
41 r
'href=(["\'])(?P
<url
>https?
://(?
:www\
.)?udemy\
.com
/course
/subscribe
/.+?
)\
1',
42 webpage, 'enroll url
', group='url
',
43 default='https
://www
.udemy
.com
/course
/subscribe
/?courseId
=%s' % course_id)
44 webpage = self._download_webpage(enroll_url, course_id, 'Enrolling
in the course
')
45 if self._SUCCESSFULLY_ENROLLED in webpage:
46 self.to_screen('%s: Successfully enrolled
in' % course_id)
47 elif self._ALREADY_ENROLLED in webpage:
48 self.to_screen('%s: Already enrolled
in' % course_id)
50 def _download_lecture(self, course_id, lecture_id):
51 return self._download_json(
52 'https
://www
.udemy
.com
/api
-2.0/users
/me
/subscribed
-courses
/%s/lectures
/%s?
%s' % (
53 course_id, lecture_id, compat_urllib_parse.urlencode({
56 'fields
[lecture
]': 'title
,description
,asset
',
57 'fields
[asset
]': 'asset_type
,stream_url
,thumbnail_url
,download_urls
,data
',
58 'instructorPreviewMode
': 'False',
60 lecture_id, 'Downloading lecture JSON
')
62 def _handle_error(self, response):
63 if not isinstance(response, dict):
65 error = response.get('error
')
67 error_str = 'Udemy returned error
#%s: %s' % (error.get('code'), error.get('message'))
68 error_data
= error
.get('data')
70 error_str
+= ' - %s' % error_data
.get('formErrors')
71 raise ExtractorError(error_str
, expected
=True)
73 def _download_json(self
, url_or_request
, video_id
, note
='Downloading JSON metadata'):
75 'X-Udemy-Snail-Case': 'true',
76 'X-Requested-With': 'XMLHttpRequest',
78 for cookie
in self
._downloader
.cookiejar
:
79 if cookie
.name
== 'client_id':
80 headers
['X-Udemy-Client-Id'] = cookie
.value
81 elif cookie
.name
== 'access_token':
82 headers
['X-Udemy-Bearer-Token'] = cookie
.value
83 headers
['X-Udemy-Authorization'] = 'Bearer %s' % cookie
.value
85 if isinstance(url_or_request
, compat_urllib_request
.Request
):
86 for header
, value
in headers
.items():
87 url_or_request
.add_header(header
, value
)
89 url_or_request
= sanitized_Request(url_or_request
, headers
=headers
)
91 response
= super(UdemyIE
, self
)._download
_json
(url_or_request
, video_id
, note
)
92 self
._handle
_error
(response
)
95 def _real_initialize(self
):
99 (username
, password
) = self
._get
_login
_info
()
103 login_popup
= self
._download
_webpage
(
104 self
._LOGIN
_URL
, None, 'Downloading login popup')
106 def is_logged(webpage
):
107 return any(p
in webpage
for p
in ['href="https://www.udemy.com/user/logout/', '>Logout<'])
110 if is_logged(login_popup
):
113 login_form
= self
._form
_hidden
_inputs
('login-form', login_popup
)
116 'email': username
.encode('utf-8'),
117 'password': password
.encode('utf-8'),
120 request
= sanitized_Request(
121 self
._LOGIN
_URL
, compat_urllib_parse
.urlencode(login_form
).encode('utf-8'))
122 request
.add_header('Referer', self
._ORIGIN
_URL
)
123 request
.add_header('Origin', self
._ORIGIN
_URL
)
125 response
= self
._download
_webpage
(
126 request
, None, 'Logging in as %s' % username
)
128 if not is_logged(response
):
129 error
= self
._html
_search
_regex
(
130 r
'(?s)<div[^>]+class="form-errors[^"]*">(.+?)</div>',
131 response
, 'error message', default
=None)
133 raise ExtractorError('Unable to login: %s' % error
, expected
=True)
134 raise ExtractorError('Unable to log in')
136 def _real_extract(self
, url
):
137 lecture_id
= self
._match
_id
(url
)
139 webpage
= self
._download
_webpage
(url
, lecture_id
)
141 course_id
= self
._search
_regex
(
142 r
'data-course-id=["\'](\d
+)', webpage, 'course
id')
145 lecture = self._download_lecture(course_id, lecture_id)
146 except ExtractorError as e:
147 # Error could possibly mean we are not enrolled in the course
148 if isinstance(e.cause, compat_HTTPError) and e.cause.code == 403:
149 self._enroll_course(webpage, course_id)
150 lecture_id = self._download_lecture(course_id, lecture_id)
154 title = lecture['title
']
155 description = lecture.get('description
')
157 asset = lecture['asset
']
159 asset_type = asset.get('assetType
') or asset.get('asset_type
')
160 if asset_type != 'Video
':
161 raise ExtractorError(
162 'Lecture
%s is not a video
' % lecture_id, expected=True)
164 stream_url = asset.get('streamUrl
') or asset.get('stream_url
')
166 youtube_url = self._search_regex(
167 r'(https?
://www\
.youtube\
.com
/watch
\?v
=.*)', stream_url, 'youtube URL
', default=None)
169 return self.url_result(youtube_url, 'Youtube
')
171 video_id = asset['id']
172 thumbnail = asset.get('thumbnailUrl
') or asset.get('thumbnail_url
')
173 duration = float_or_none(asset.get('data
', {}).get('duration
'))
174 outputs = asset.get('data
', {}).get('outputs', {})
177 for format_ in asset.get('download_urls
', {}).get('Video
', []):
178 video_url = format_.get('file')
181 format_id = format_.get('label
')
183 'url
': format_['file'],
184 'height
': int_or_none(format_id),
187 # Some videos contain additional metadata (e.g.
188 # https://www.udemy.com/ios9-swift/learn/#/lecture/3383208)
189 output = outputs.get(format_id)
190 if isinstance(output, dict):
192 'format_id
': '%sp
' % (output.get('label
') or format_id),
193 'width
': int_or_none(output.get('width
')),
194 'height
': int_or_none(output.get('height
')),
195 'vbr
': int_or_none(output.get('video_bitrate_in_kbps
')),
196 'vcodec
': output.get('video_codec
'),
197 'fps
': int_or_none(output.get('frame_rate
')),
198 'abr
': int_or_none(output.get('audio_bitrate_in_kbps
')),
199 'acodec
': output.get('audio_codec
'),
200 'asr
': int_or_none(output.get('audio_sample_rate
')),
201 'tbr
': int_or_none(output.get('total_bitrate_in_kbps
')),
202 'filesize
': int_or_none(output.get('file_size_in_bytes
')),
205 f['format_id
'] = '%sp
' % format_id
208 self._sort_formats(formats)
213 'description
': description,
214 'thumbnail
': thumbnail,
215 'duration
': duration,
220 class UdemyCourseIE(UdemyIE):
221 IE_NAME = 'udemy
:course
'
222 _VALID_URL = r'https?
://www\
.udemy\
.com
/(?P
<id>[\da
-z
-]+)'
226 def suitable(cls, url):
227 return False if UdemyIE.suitable(url) else super(UdemyCourseIE, cls).suitable(url)
229 def _real_extract(self, url):
230 course_path = self._match_id(url)
232 webpage = self._download_webpage(url, course_path)
234 response = self._download_json(
235 'https
://www
.udemy
.com
/api
-1.1/courses
/%s' % course_path,
236 course_path, 'Downloading course JSON
')
238 course_id = response['id']
239 course_title = response.get('title
')
241 self._enroll_course(webpage, course_id)
243 response = self._download_json(
244 'https
://www
.udemy
.com
/api
-1.1/courses
/%s/curriculum
' % course_id,
245 course_id, 'Downloading course curriculum
')
249 'https
://www
.udemy
.com
/%s/#/lecture/%s' % (course_path, asset['id']), 'Udemy')
250 for asset
in response
if asset
.get('assetType') or asset
.get('asset_type') == 'Video'
253 return self
.playlist_result(entries
, course_id
, course_title
)