from __future__ import unicode_literals import re from .common import InfoExtractor from ..compat import ( compat_urllib_parse, compat_urllib_request, ) from ..utils import ( ExtractorError, int_or_none, sanitized_Request, ) class UdemyIE(InfoExtractor): IE_NAME = 'udemy' _VALID_URL = r'https?://www\.udemy\.com/(?:[^#]+#/lecture/|lecture/view/?\?lectureId=)(?P\d+)' _LOGIN_URL = 'https://www.udemy.com/join/login-popup/?displayType=ajax&showSkipButton=1' _ORIGIN_URL = 'https://www.udemy.com' _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_or_request, video_id, note='Downloading JSON metadata'): headers = { 'X-Udemy-Snail-Case': 'true', 'X-Requested-With': 'XMLHttpRequest', } for cookie in self._downloader.cookiejar: if cookie.name == 'client_id': headers['X-Udemy-Client-Id'] = cookie.value elif cookie.name == 'access_token': headers['X-Udemy-Bearer-Token'] = cookie.value if isinstance(url_or_request, compat_urllib_request.Request): for header, value in headers.items(): url_or_request.add_header(header, value) else: url_or_request = sanitized_Request(url_or_request, headers=headers) response = super(UdemyIE, self)._download_json(url_or_request, 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: return login_popup = self._download_webpage( self._LOGIN_URL, None, 'Downloading login popup') def is_logged(webpage): return any(p in webpage for p in ['href="https://www.udemy.com/user/logout/', '>Logout<']) # already logged in if is_logged(login_popup): return login_form = self._form_hidden_inputs('login-form', login_popup) login_form.update({ 'email': username.encode('utf-8'), 'password': password.encode('utf-8'), }) request = sanitized_Request( self._LOGIN_URL, compat_urllib_parse.urlencode(login_form).encode('utf-8')) request.add_header('Referer', self._ORIGIN_URL) request.add_header('Origin', self._ORIGIN_URL) response = self._download_webpage( request, None, 'Logging in as %s' % username) if not is_logged(response): error = self._html_search_regex( r'(?s)]+class="form-errors[^"]*">(.+?)', response, 'error message', default=None) if error: raise ExtractorError('Unable to login: %s' % error, expected=True) raise ExtractorError('Unable to log in') def _real_extract(self, url): lecture_id = self._match_id(url) lecture = self._download_json( 'https://www.udemy.com/api-1.1/lectures/%s' % lecture_id, lecture_id, 'Downloading lecture JSON') asset_type = lecture.get('assetType') or lecture.get('asset_type') if asset_type != 'Video': raise ExtractorError( 'Lecture %s is not a video' % lecture_id, expected=True) asset = lecture['asset'] stream_url = asset.get('streamUrl') or asset.get('stream_url') 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.get('thumbnailUrl') or asset.get('thumbnail_url') duration = int_or_none(asset.get('data', {}).get('duration')) download_url = asset.get('downloadUrl') or asset.get('download_url') video = download_url.get('Video') or download_url.get('video') video_480p = download_url.get('Video480p') or download_url.get('video_480p') formats = [{ 'url': video_480p[0], 'format_id': 'download-360p', }, { 'url': video[0], 'format_id': 'download-720p', }] # Some videos also contain formats in asset['data']['outputs'] (e.g. # https://www.udemy.com/ios9-swift/learn/#/lecture/3383208) outputs = asset.get('data', {}).get('outputs') if isinstance(outputs, dict): for format_id, f in outputs.items(): video_url = f.get('url') if video_url: formats.append({ 'url': video_url, 'format_id': '%sp' % (f.get('labe1l') or format_id), 'width': int_or_none(f.get('width')), 'height': int_or_none(f.get('height')), 'vbr': int_or_none(f.get('video_bitrate_in_kbps')), 'vcodec': f.get('video_codec'), 'fps': int_or_none(f.get('frame_rate')), 'abr': int_or_none(f.get('audio_bitrate_in_kbps')), 'acodec': f.get('audio_codec'), 'asr': int_or_none(f.get('audio_sample_rate')), 'tbr': int_or_none(f.get('total_bitrate_in_kbps')), 'filesize': int_or_none(f.get('file_size_in_bytes')), }) self._sort_formats(formats) title = lecture['title'] description = lecture.get('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[\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') or asset.get('asset_type') == 'Video' ] return self.playlist_result(entries, course_id, course_title)