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from __future__ import unicode_literals
import re
from .common import InfoExtractor
from ..utils import (
compat_urllib_parse,
compat_urllib_request,
ExtractorError,
)
class UdemyIE(InfoExtractor):
IE_NAME = 'udemy'
_VALID_URL = r'https?://www\.udemy\.com/(?:[^#]+#/lecture/|lecture/view/?\?lectureId=)(?P<id>\d+)'
_LOGIN_URL = 'https://www.udemy.com/join/login-submit/'
_NETRC_MACHINE = 'udemy'
_TESTS = [{
'url': 'https://www.udemy.com/java-tutorial/#/lecture/172757',
'md5': '98eda5b657e752cf945d8445e261b5c5',
'info_dict': {
'id': '160614',
'ext': 'mp4',
'title': 'Introduction and Installation',
'description': 'md5:c0d51f6f21ef4ec65f091055a5eef876',
'duration': 579.29,
},
'skip': 'Requires udemy account credentials',
}]
def _handle_error(self, response):
if not isinstance(response, dict):
return
error = response.get('error')
if error:
error_str = 'Udemy returned error #%s: %s' % (error.get('code'), error.get('message'))
error_data = error.get('data')
if error_data:
error_str += ' - %s' % error_data.get('formErrors')
raise ExtractorError(error_str, expected=True)
def _download_json(self, url, video_id, note='Downloading JSON metadata'):
response = super(UdemyIE, self)._download_json(url, video_id, note)
self._handle_error(response)
return response
def _real_initialize(self):
self._login()
def _login(self):
(username, password) = self._get_login_info()
if username is None:
raise ExtractorError(
'Udemy account is required, use --username and --password options to provide account credentials.',
expected=True)
login_popup = self._download_webpage(
'https://www.udemy.com/join/login-popup?displayType=ajax&showSkipButton=1', None,
'Downloading login popup')
if login_popup == '<div class="run-command close-popup redirect" data-url="https://www.udemy.com/"></div>':
return
csrf = self._html_search_regex(r'<input type="hidden" name="csrf" value="(.+?)"', login_popup, 'csrf token')
login_form = {
'email': username,
'password': password,
'csrf': csrf,
'displayType': 'json',
'isSubmitted': '1',
}
request = compat_urllib_request.Request(self._LOGIN_URL, compat_urllib_parse.urlencode(login_form))
response = self._download_json(request, None, 'Logging in as %s' % username)
if 'returnUrl' not in response:
raise ExtractorError('Unable to log in')
def _real_extract(self, url):
mobj = re.match(self._VALID_URL, url)
lecture_id = mobj.group('id')
lecture = self._download_json(
'https://www.udemy.com/api-1.1/lectures/%s' % lecture_id, lecture_id, 'Downloading lecture JSON')
if lecture['assetType'] != 'Video':
raise ExtractorError('Lecture %s is not a video' % lecture_id, expected=True)
asset = lecture['asset']
stream_url = asset['streamUrl']
mobj = re.search(r'(https?://www\.youtube\.com/watch\?v=.*)', stream_url)
if mobj:
return self.url_result(mobj.group(1), 'Youtube')
video_id = asset['id']
thumbnail = asset['thumbnailUrl']
duration = asset['data']['duration']
download_url = asset['downloadUrl']
formats = [
{
'url': download_url['Video480p'][0],
'format_id': '360p',
},
{
'url': download_url['Video'][0],
'format_id': '720p',
},
]
title = lecture['title']
description = lecture['description']
return {
'id': video_id,
'title': title,
'description': description,
'thumbnail': thumbnail,
'duration': duration,
'formats': formats
}
class UdemyCourseIE(UdemyIE):
IE_NAME = 'udemy:course'
_VALID_URL = r'https?://www\.udemy\.com/(?P<coursepath>[\da-z-]+)'
_SUCCESSFULLY_ENROLLED = '>You have enrolled in this course!<'
_ALREADY_ENROLLED = '>You are already taking this course.<'
_TESTS = []
@classmethod
def suitable(cls, url):
return False if UdemyIE.suitable(url) else super(UdemyCourseIE, cls).suitable(url)
def _real_extract(self, url):
mobj = re.match(self._VALID_URL, url)
course_path = mobj.group('coursepath')
response = self._download_json(
'https://www.udemy.com/api-1.1/courses/%s' % course_path, course_path, 'Downloading course JSON')
course_id = int(response['id'])
course_title = response['title']
webpage = self._download_webpage(
'https://www.udemy.com/course/subscribe/?courseId=%s' % course_id, course_id, 'Enrolling in the course')
if self._SUCCESSFULLY_ENROLLED in webpage:
self.to_screen('%s: Successfully enrolled in' % course_id)
elif self._ALREADY_ENROLLED in webpage:
self.to_screen('%s: Already enrolled in' % course_id)
response = self._download_json('https://www.udemy.com/api-1.1/courses/%s/curriculum' % course_id,
course_id, 'Downloading course curriculum')
entries = [
self.url_result('https://www.udemy.com/%s/#/lecture/%s' % (course_path, asset['id']), 'Udemy')
for asset in response if asset.get('assetType') == 'Video'
]
return self.playlist_result(entries, course_id, course_title)
|
