from .common import InfoExtractor
from ..compat import (
- compat_urllib_parse,
+ compat_HTTPError,
compat_urllib_request,
+ compat_urlparse,
)
from ..utils import (
+ determine_ext,
+ extract_attributes,
ExtractorError,
+ float_or_none,
+ int_or_none,
+ sanitized_Request,
+ unescapeHTML,
+ urlencode_postdata,
)
class UdemyIE(InfoExtractor):
IE_NAME = 'udemy'
- _VALID_URL = r'https?://www\.udemy\.com/(?:[^#]+#/lecture/|lecture/view/?\?lectureId=)(?P<id>\d+)'
+ _VALID_URL = r'''(?x)
+ https?://
+ www\.udemy\.com/
+ (?:
+ [^#]+\#/lecture/|
+ lecture/view/?\?lectureId=|
+ [^/]+/learn/v4/t/lecture/
+ )
+ (?P<id>\d+)
+ '''
_LOGIN_URL = 'https://www.udemy.com/join/login-popup/?displayType=ajax&showSkipButton=1'
_ORIGIN_URL = 'https://www.udemy.com'
_NETRC_MACHINE = 'udemy'
'duration': 579.29,
},
'skip': 'Requires udemy account credentials',
+ }, {
+ # new URL schema
+ 'url': 'https://www.udemy.com/electric-bass-right-from-the-start/learn/v4/t/lecture/4580906',
+ 'only_matching': True,
}]
+ def _extract_course_info(self, webpage, video_id):
+ course = self._parse_json(
+ unescapeHTML(self._search_regex(
+ r'ng-init=["\'].*\bcourse=({.+?});', webpage, 'course', default='{}')),
+ video_id, fatal=False) or {}
+ course_id = course.get('id') or self._search_regex(
+ (r'"id"\s*:\s*(\d+)', r'data-course-id=["\'](\d+)'),
+ webpage, 'course id')
+ return course_id, course.get('title')
+
+ def _enroll_course(self, base_url, webpage, course_id):
+ def combine_url(base_url, url):
+ return compat_urlparse.urljoin(base_url, url) if not url.startswith('http') else url
+
+ checkout_url = unescapeHTML(self._search_regex(
+ r'href=(["\'])(?P<url>(?:https?://(?:www\.)?udemy\.com)?/payment/checkout/.+?)\1',
+ webpage, 'checkout url', group='url', default=None))
+ if checkout_url:
+ raise ExtractorError(
+ 'Course %s is not free. You have to pay for it before you can download. '
+ 'Use this URL to confirm purchase: %s'
+ % (course_id, combine_url(base_url, checkout_url)),
+ expected=True)
+
+ enroll_url = unescapeHTML(self._search_regex(
+ r'href=(["\'])(?P<url>(?:https?://(?:www\.)?udemy\.com)?/course/subscribe/.+?)\1',
+ webpage, 'enroll url', group='url', default=None))
+ if enroll_url:
+ webpage = self._download_webpage(
+ combine_url(base_url, enroll_url),
+ course_id, 'Enrolling in the course',
+ headers={'Referer': base_url})
+ if '>You have enrolled in' in webpage:
+ self.to_screen('%s: Successfully enrolled in the course' % course_id)
+
+ def _download_lecture(self, course_id, lecture_id):
+ return self._download_json(
+ 'https://www.udemy.com/api-2.0/users/me/subscribed-courses/%s/lectures/%s?'
+ % (course_id, lecture_id),
+ lecture_id, 'Downloading lecture JSON', query={
+ 'fields[lecture]': 'title,description,view_html,asset',
+ 'fields[asset]': 'asset_type,stream_url,thumbnail_url,download_urls,data',
+ })
+
def _handle_error(self, response):
if not isinstance(response, dict):
return
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'):
+ def _download_json(self, url_or_request, *args, **kwargs):
headers = {
'X-Udemy-Snail-Case': 'true',
'X-Requested-With': 'XMLHttpRequest',
headers['X-Udemy-Client-Id'] = cookie.value
elif cookie.name == 'access_token':
headers['X-Udemy-Bearer-Token'] = cookie.value
+ headers['X-Udemy-Authorization'] = 'Bearer %s' % 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 = compat_urllib_request.Request(url_or_request, headers=headers)
+ url_or_request = sanitized_Request(url_or_request, headers=headers)
- response = super(UdemyIE, self)._download_json(url_or_request, video_id, note)
+ response = super(UdemyIE, self)._download_json(url_or_request, *args, **kwargs)
self._handle_error(response)
return response
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)
+ return
login_popup = self._download_webpage(
self._LOGIN_URL, None, 'Downloading login popup')
- if login_popup == '<div class="run-command close-popup redirect" data-url="https://www.udemy.com/"></div>':
+ def is_logged(webpage):
+ return any(re.search(p, webpage) for p in (
+ r'href=["\'](?:https://www\.udemy\.com)?/user/logout/',
+ r'>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'),
+ 'email': username,
+ 'password': password,
})
- request = compat_urllib_request.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 all(logout_pattern not in response
- for logout_pattern in ['href="https://www.udemy.com/user/logout/', '>Logout<']):
+ self._LOGIN_URL, None, 'Logging in as %s' % username,
+ data=urlencode_postdata(login_form),
+ headers={
+ 'Referer': self._ORIGIN_URL,
+ 'Origin': self._ORIGIN_URL,
+ })
+
+ if not is_logged(response):
error = self._html_search_regex(
r'(?s)<div[^>]+class="form-errors[^"]*">(.+?)</div>',
response, 'error message', default=None)
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')
+ webpage = self._download_webpage(url, lecture_id)
- 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)
+ course_id, _ = self._extract_course_info(webpage, lecture_id)
- asset = lecture['asset']
+ try:
+ lecture = self._download_lecture(course_id, lecture_id)
+ except ExtractorError as e:
+ # Error could possibly mean we are not enrolled in the course
+ if isinstance(e.cause, compat_HTTPError) and e.cause.code == 403:
+ self._enroll_course(url, webpage, course_id)
+ lecture = self._download_lecture(course_id, lecture_id)
+ else:
+ raise
- 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 = asset['data']['duration']
+ title = lecture['title']
+ description = lecture.get('description')
- download_url = asset.get('downloadUrl') or asset.get('download_url')
+ asset = lecture['asset']
- video = download_url.get('Video') or download_url.get('video')
- video_480p = download_url.get('Video480p') or download_url.get('video_480p')
+ asset_type = asset.get('asset_type') or asset.get('assetType')
+ if asset_type != 'Video':
+ raise ExtractorError(
+ 'Lecture %s is not a video' % lecture_id, expected=True)
- formats = [
- {
- 'url': video_480p[0],
- 'format_id': '360p',
- },
- {
- 'url': video[0],
- 'format_id': '720p',
- },
- ]
+ stream_url = asset.get('stream_url') or asset.get('streamUrl')
+ if stream_url:
+ youtube_url = self._search_regex(
+ r'(https?://www\.youtube\.com/watch\?v=.*)', stream_url, 'youtube URL', default=None)
+ if youtube_url:
+ return self.url_result(youtube_url, 'Youtube')
- title = lecture['title']
- description = lecture['description']
+ video_id = asset['id']
+ thumbnail = asset.get('thumbnail_url') or asset.get('thumbnailUrl')
+ duration = float_or_none(asset.get('data', {}).get('duration'))
+
+ formats = []
+
+ def extract_output_format(src):
+ return {
+ 'url': src['url'],
+ 'format_id': '%sp' % (src.get('height') or format_id),
+ 'width': int_or_none(src.get('width')),
+ 'height': int_or_none(src.get('height')),
+ 'vbr': int_or_none(src.get('video_bitrate_in_kbps')),
+ 'vcodec': src.get('video_codec'),
+ 'fps': int_or_none(src.get('frame_rate')),
+ 'abr': int_or_none(src.get('audio_bitrate_in_kbps')),
+ 'acodec': src.get('audio_codec'),
+ 'asr': int_or_none(src.get('audio_sample_rate')),
+ 'tbr': int_or_none(src.get('total_bitrate_in_kbps')),
+ 'filesize': int_or_none(src.get('file_size_in_bytes')),
+ }
+
+ outputs = asset.get('data', {}).get('outputs')
+ if not isinstance(outputs, dict):
+ outputs = {}
+
+ def add_output_format_meta(f, key):
+ output = outputs.get(key)
+ if isinstance(output, dict):
+ output_format = extract_output_format(output)
+ output_format.update(f)
+ return output_format
+ return f
+
+ download_urls = asset.get('download_urls')
+ if isinstance(download_urls, dict):
+ video = download_urls.get('Video')
+ if isinstance(video, list):
+ for format_ in video:
+ video_url = format_.get('file')
+ if not video_url:
+ continue
+ format_id = format_.get('label')
+ f = {
+ 'url': format_['file'],
+ 'format_id': '%sp' % format_id,
+ 'height': int_or_none(format_id),
+ }
+ if format_id:
+ # Some videos contain additional metadata (e.g.
+ # https://www.udemy.com/ios9-swift/learn/#/lecture/3383208)
+ f = add_output_format_meta(f, format_id)
+ formats.append(f)
+
+ view_html = lecture.get('view_html')
+ if view_html:
+ view_html_urls = set()
+ for source in re.findall(r'<source[^>]+>', view_html):
+ attributes = extract_attributes(source)
+ src = attributes.get('src')
+ if not src:
+ continue
+ res = attributes.get('data-res')
+ height = int_or_none(res)
+ if src in view_html_urls:
+ continue
+ view_html_urls.add(src)
+ if attributes.get('type') == 'application/x-mpegURL' or determine_ext(src) == 'm3u8':
+ m3u8_formats = self._extract_m3u8_formats(
+ src, video_id, 'mp4', entry_protocol='m3u8_native',
+ m3u8_id='hls', fatal=False)
+ for f in m3u8_formats:
+ m = re.search(r'/hls_(?P<height>\d{3,4})_(?P<tbr>\d{2,})/', f['url'])
+ if m:
+ if not f.get('height'):
+ f['height'] = int(m.group('height'))
+ if not f.get('tbr'):
+ f['tbr'] = int(m.group('tbr'))
+ formats.extend(m3u8_formats)
+ else:
+ formats.append(add_output_format_meta({
+ 'url': src,
+ 'format_id': '%dp' % height if height else None,
+ 'height': height,
+ }, res))
+
+ self._sort_formats(formats, field_preference=('height', 'width', 'tbr', 'format_id'))
return {
'id': video_id,
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.<'
+ _VALID_URL = r'https?://www\.udemy\.com/(?P<id>[^/?#&]+)'
_TESTS = []
@classmethod
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_path = self._match_id(url)
- course_id = int(response['id'])
- course_title = response['title']
+ webpage = self._download_webpage(url, course_path)
- webpage = self._download_webpage(
- 'https://www.udemy.com/course/subscribe/?courseId=%s' % course_id,
- course_id, 'Enrolling in the course')
+ course_id, title = self._extract_course_info(webpage, course_path)
- 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)
+ self._enroll_course(url, webpage, 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)
+ 'https://www.udemy.com/api-2.0/courses/%s/cached-subscriber-curriculum-items' % course_id,
+ course_id, 'Downloading course curriculum', query={
+ 'fields[chapter]': 'title,object_index',
+ 'fields[lecture]': 'title,asset',
+ 'page_size': '1000',
+ })
+
+ entries = []
+ chapter, chapter_number = [None] * 2
+ for entry in response['results']:
+ clazz = entry.get('_class')
+ if clazz == 'lecture':
+ asset = entry.get('asset')
+ if isinstance(asset, dict):
+ asset_type = asset.get('asset_type') or asset.get('assetType')
+ if asset_type != 'Video':
+ continue
+ lecture_id = entry.get('id')
+ if lecture_id:
+ entry = {
+ '_type': 'url_transparent',
+ 'url': 'https://www.udemy.com/%s/learn/v4/t/lecture/%s' % (course_path, entry['id']),
+ 'title': entry.get('title'),
+ 'ie_key': UdemyIE.ie_key(),
+ }
+ if chapter_number:
+ entry['chapter_number'] = chapter_number
+ if chapter:
+ entry['chapter'] = chapter
+ entries.append(entry)
+ elif clazz == 'chapter':
+ chapter_number = entry.get('object_index')
+ chapter = entry.get('title')
+
+ return self.playlist_result(entries, course_id, title)
Rapsys Git / youtubedl / blobdiff