1 from __future__
import unicode_literals
5 from .common
import InfoExtractor
18 class LyndaBaseIE(InfoExtractor
):
19 _SIGNIN_URL
= 'https://www.lynda.com/signin'
20 _PASSWORD_URL
= 'https://www.lynda.com/signin/password'
21 _USER_URL
= 'https://www.lynda.com/signin/user'
22 _ACCOUNT_CREDENTIALS_HINT
= 'Use --username and --password options to provide lynda.com account credentials.'
23 _NETRC_MACHINE
= 'lynda'
25 def _real_initialize(self
):
29 def _check_error(json_string
, key_or_keys
):
30 keys
= [key_or_keys
] if isinstance(key_or_keys
, compat_str
) else key_or_keys
32 error
= json_string
.get(key
)
34 raise ExtractorError('Unable to login: %s' % error
, expected
=True)
36 def _login_step(self
, form_html
, fallback_action_url
, extra_form_data
, note
, referrer_url
):
37 action_url
= self
._search
_regex
(
38 r
'<form[^>]+action=(["\'])(?P
<url
>.+?
)\
1', form_html,
39 'post url
', default=fallback_action_url, group='url
')
41 if not action_url.startswith('http
'):
42 action_url = compat_urlparse.urljoin(self._SIGNIN_URL, action_url)
44 form_data = self._hidden_inputs(form_html)
45 form_data.update(extra_form_data)
48 response = self._download_json(
49 action_url, None, note,
50 data=urlencode_postdata(form_data),
52 'Referer
': referrer_url,
53 'X
-Requested
-With
': 'XMLHttpRequest
',
55 except ExtractorError as e:
56 if isinstance(e.cause, compat_HTTPError) and e.cause.code == 500:
57 response = self._parse_json(e.cause.read().decode('utf
-8'), None)
58 self._check_error(response, ('email
', 'password
'))
61 self._check_error(response, 'ErrorMessage
')
63 return response, action_url
66 username, password = self._get_login_info()
70 # Step 1: download signin page
71 signin_page = self._download_webpage(
72 self._SIGNIN_URL, None, 'Downloading signin page
')
75 if any(re.search(p, signin_page) for p in (
76 r'isLoggedIn\s
*:\s
*true
', r'logout\
.aspx
', r'>Log out
<')):
79 # Step 2: submit email
80 signin_form = self._search_regex(
81 r'(?s
)(<form
[^
>]+data
-form
-name
=["\']signin["\'][^
>]*>.+?
</form
>)',
82 signin_page, 'signin form
')
83 signin_page, signin_url = self._login_step(
84 signin_form, self._PASSWORD_URL, {'email
': username},
85 'Submitting email
', self._SIGNIN_URL)
87 # Step 3: submit password
88 password_form = signin_page['body
']
90 password_form, self._USER_URL, {'email
': username, 'password
': password},
91 'Submitting password
', signin_url)
94 class LyndaIE(LyndaBaseIE):
96 IE_DESC = 'lynda
.com videos
'
99 (?:www\.)?(?:lynda\.com|educourse\.ga)/
101 (?:[^/]+/){2,3}(?P<course_id>\d+)|
107 _TIMECODE_REGEX = r'\
[(?P
<timecode
>\d
+:\d
+:\d
+[\
.,]\d
+)\
]'
110 'url
': 'https
://www
.lynda
.com
/Bootstrap
-tutorials
/Using
-exercise
-files
/110885/114408-4.html
',
115 'title
': 'Using the exercise files
',
119 'url
': 'https
://www
.lynda
.com
/player
/embed
/133770?tr
=foo
=1;bar
=g
;fizz
=rt
&fs
=0',
120 'only_matching
': True,
122 'url
': 'https
://educourse
.ga
/Bootstrap
-tutorials
/Using
-exercise
-files
/110885/114408-4.html
',
123 'only_matching
': True,
125 'url
': 'https
://www
.lynda
.com
/de
/Graphic
-Design
-tutorials
/Willkommen
-Grundlagen
-guten
-Gestaltung
/393570/393572-4.html
',
126 'only_matching
': True,
129 def _raise_unavailable(self, video_id):
130 self.raise_login_required(
131 'Video
%s is only available
for members
' % video_id)
133 def _real_extract(self, url):
134 mobj = re.match(self._VALID_URL, url)
135 video_id = mobj.group('id')
136 course_id = mobj.group('course_id
')
143 video = self._download_json(
144 'https
://www
.lynda
.com
/ajax
/player
', video_id,
145 'Downloading video JSON
', fatal=False, query=query)
149 query['courseId
'] = course_id
151 play = self._download_json(
152 'https
://www
.lynda
.com
/ajax
/course
/%s/%s/play
'
153 % (course_id, video_id), video_id, 'Downloading play JSON
')
156 self._raise_unavailable(video_id)
159 for formats_dict in play:
160 urls = formats_dict.get('urls
')
161 if not isinstance(urls, dict):
163 cdn = formats_dict.get('name
')
164 for format_id, format_url in urls.items():
169 'format_id
': '%s-%s' % (cdn, format_id) if cdn else format_id,
170 'height
': int_or_none(format_id),
172 self._sort_formats(formats)
174 conviva = self._download_json(
175 'https
://www
.lynda
.com
/ajax
/player
/conviva
', video_id,
176 'Downloading conviva JSON
', query=query)
180 'title
': conviva['VideoTitle
'],
181 'description
': conviva.get('VideoDescription
'),
182 'release_year
': int_or_none(conviva.get('ReleaseYear
')),
183 'duration
': int_or_none(conviva.get('Duration
')),
184 'creator
': conviva.get('Author
'),
188 if 'Status
' in video:
189 raise ExtractorError(
190 'lynda returned error
: %s' % video['Message
'], expected=True)
192 if video.get('HasAccess
') is False:
193 self._raise_unavailable(video_id)
195 video_id = compat_str(video.get('ID
') or video_id)
196 duration = int_or_none(video.get('DurationInSeconds
'))
197 title = video['Title
']
201 fmts = video.get('Formats
')
205 'ext
': f.get('Extension
'),
206 'width
': int_or_none(f.get('Width
')),
207 'height
': int_or_none(f.get('Height
')),
208 'filesize
': int_or_none(f.get('FileSize
')),
209 'format_id
': compat_str(f.get('Resolution
')) if f.get('Resolution
') else None,
210 } for f in fmts if f.get('Url
')])
212 prioritized_streams = video.get('PrioritizedStreams
')
213 if prioritized_streams:
214 for prioritized_stream_id, prioritized_stream in prioritized_streams.items():
217 'height
': int_or_none(format_id),
218 'format_id
': '%s-%s' % (prioritized_stream_id, format_id),
219 } for format_id, video_url in prioritized_stream.items()])
221 self._check_formats(formats, video_id)
222 self._sort_formats(formats)
224 subtitles = self.extract_subtitles(video_id)
229 'duration
': duration,
230 'subtitles
': subtitles,
234 def _fix_subtitles(self, subs):
237 for pos in range(0, len(subs) - 1):
238 seq_current = subs[pos]
239 m_current = re.match(self._TIMECODE_REGEX, seq_current['Timecode
'])
240 if m_current is None:
242 seq_next = subs[pos + 1]
243 m_next = re.match(self._TIMECODE_REGEX, seq_next['Timecode
'])
246 appear_time = m_current.group('timecode
')
247 disappear_time = m_next.group('timecode
')
248 text = seq_current['Caption
'].strip()
251 srt += '%s\r\n%s --> %s\r\n%s\r\n\r\n' % (seq_counter, appear_time, disappear_time, text)
255 def _get_subtitles(self, video_id):
256 url = 'https
://www
.lynda
.com
/ajax
/player?videoId
=%s&type=transcript
' % video_id
257 subs = self._download_json(url, None, False)
258 fixed_subs = self._fix_subtitles(subs)
260 return {'en
': [{'ext
': 'srt
', 'data
': fixed_subs}]}
265 class LyndaCourseIE(LyndaBaseIE):
266 IE_NAME = 'lynda
:course
'
267 IE_DESC = 'lynda
.com online courses
'
269 # Course link equals to welcome/introduction video link of same course
270 # We will recognize it as course link
271 _VALID_URL = r'https?
://(?
:www|m
)\
.(?
:lynda\
.com|educourse\
.ga
)/(?P
<coursepath
>(?
:[^
/]+/){2,3}(?P
<courseid
>\d
+))-2\
.html
'
274 'url
': 'https
://www
.lynda
.com
/Graphic
-Design
-tutorials
/Grundlagen
-guten
-Gestaltung
/393570-2.html
',
275 'only_matching
': True,
277 'url
': 'https
://www
.lynda
.com
/de
/Graphic
-Design
-tutorials
/Grundlagen
-guten
-Gestaltung
/393570-2.html
',
278 'only_matching
': True,
281 def _real_extract(self, url):
282 mobj = re.match(self._VALID_URL, url)
283 course_path = mobj.group('coursepath
')
284 course_id = mobj.group('courseid
')
286 item_template = 'https
://www
.lynda
.com
/%s/%%s-4.html
' % course_path
288 course = self._download_json(
289 'https
://www
.lynda
.com
/ajax
/player?courseId
=%s&type=course
' % course_id,
290 course_id, 'Downloading course JSON
', fatal=False)
293 webpage = self._download_webpage(url, course_id)
296 item_template % video_id, ie=LyndaIE.ie_key(),
298 for video_id in re.findall(
299 r'data
-video
-id=["\'](\d+)', webpage)]
300 return self.playlist_result(
302 self._og_search_title(webpage, fatal=False),
303 self._og_search_description(webpage))
305 if course.get('Status') == 'NotFound':
306 raise ExtractorError(
307 'Course %s does not exist' % course_id, expected=True)
309 unaccessible_videos = 0
312 # Might want to extract videos right here from video['Formats'] as it seems 'Formats' is not provided
313 # by single video API anymore
315 for chapter in course['Chapters']:
316 for video in chapter.get('Videos', []):
317 if video.get('HasAccess') is False:
318 unaccessible_videos += 1
320 video_id = video.get('ID')
323 '_type': 'url_transparent',
324 'url': item_template % video_id,
325 'ie_key': LyndaIE.ie_key(),
326 'chapter': chapter.get('Title'),
327 'chapter_number': int_or_none(chapter.get('ChapterIndex')),
328 'chapter_id': compat_str(chapter.get('ID')),
331 if unaccessible_videos > 0:
332 self._downloader.report_warning(
333 '%s videos are only available for members (or paid members) and will not be downloaded. '
334 % unaccessible_videos + self._ACCOUNT_CREDENTIALS_HINT)
336 course_title = course.get('Title')
337 course_description = course.get('Description')
339 return self.playlist_result(entries, course_id, course_title, course_description)