1 from __future__
import unicode_literals
5 from .common
import InfoExtractor
17 class LyndaBaseIE(InfoExtractor
):
18 _SIGNIN_URL
= 'https://www.lynda.com/signin/lynda'
19 _PASSWORD_URL
= 'https://www.lynda.com/signin/password'
20 _USER_URL
= 'https://www.lynda.com/signin/user'
21 _ACCOUNT_CREDENTIALS_HINT
= 'Use --username and --password options to provide lynda.com account credentials.'
22 _NETRC_MACHINE
= 'lynda'
24 def _real_initialize(self
):
28 def _check_error(json_string
, key_or_keys
):
29 keys
= [key_or_keys
] if isinstance(key_or_keys
, compat_str
) else key_or_keys
31 error
= json_string
.get(key
)
33 raise ExtractorError('Unable to login: %s' % error
, expected
=True)
35 def _login_step(self
, form_html
, fallback_action_url
, extra_form_data
, note
, referrer_url
):
36 action_url
= self
._search
_regex
(
37 r
'<form[^>]+action=(["\'])(?P
<url
>.+?
)\
1', form_html,
38 'post url
', default=fallback_action_url, group='url
')
40 if not action_url.startswith('http
'):
41 action_url = compat_urlparse.urljoin(self._SIGNIN_URL, action_url)
43 form_data = self._hidden_inputs(form_html)
44 form_data.update(extra_form_data)
46 response = self._download_json(
47 action_url, None, note,
48 data=urlencode_postdata(form_data),
50 'Referer
': referrer_url,
51 'X
-Requested
-With
': 'XMLHttpRequest
',
52 }, expected_status=(418, 500, ))
54 self._check_error(response, ('email
', 'password
', 'ErrorMessage
'))
56 return response, action_url
59 username, password = self._get_login_info()
63 # Step 1: download signin page
64 signin_page = self._download_webpage(
65 self._SIGNIN_URL, None, 'Downloading signin page
')
68 if any(re.search(p, signin_page) for p in (
69 r'isLoggedIn\s
*:\s
*true
', r'logout\
.aspx
', r'>Log out
<')):
72 # Step 2: submit email
73 signin_form = self._search_regex(
74 r'(?s
)(<form
[^
>]+data
-form
-name
=["\']signin["\'][^
>]*>.+?
</form
>)',
75 signin_page, 'signin form
')
76 signin_page, signin_url = self._login_step(
77 signin_form, self._PASSWORD_URL, {'email
': username},
78 'Submitting email
', self._SIGNIN_URL)
80 # Step 3: submit password
81 password_form = signin_page['body
']
83 password_form, self._USER_URL, {'email
': username, 'password
': password},
84 'Submitting password
', signin_url)
87 class LyndaIE(LyndaBaseIE):
89 IE_DESC = 'lynda
.com videos
'
92 (?:www\.)?(?:lynda\.com|educourse\.ga)/
94 (?:[^/]+/){2,3}(?P<course_id>\d+)|
100 _TIMECODE_REGEX = r'\
[(?P
<timecode
>\d
+:\d
+:\d
+[\
.,]\d
+)\
]'
103 'url
': 'https
://www
.lynda
.com
/Bootstrap
-tutorials
/Using
-exercise
-files
/110885/114408-4.html
',
108 'title
': 'Using the exercise files
',
112 'url
': 'https
://www
.lynda
.com
/player
/embed
/133770?tr
=foo
=1;bar
=g
;fizz
=rt
&fs
=0',
113 'only_matching
': True,
115 'url
': 'https
://educourse
.ga
/Bootstrap
-tutorials
/Using
-exercise
-files
/110885/114408-4.html
',
116 'only_matching
': True,
118 'url
': 'https
://www
.lynda
.com
/de
/Graphic
-Design
-tutorials
/Willkommen
-Grundlagen
-guten
-Gestaltung
/393570/393572-4.html
',
119 'only_matching
': True,
121 # Status="NotFound", Message="Transcript not found"
122 'url
': 'https
://www
.lynda
.com
/ASP
-NET
-tutorials
/What
-you
-should
-know
/5034180/2811512-4.html
',
123 'only_matching
': True,
126 def _raise_unavailable(self, video_id):
127 self.raise_login_required(
128 'Video
%s is only available
for members
' % video_id)
130 def _real_extract(self, url):
131 mobj = re.match(self._VALID_URL, url)
132 video_id = mobj.group('id')
133 course_id = mobj.group('course_id
')
140 video = self._download_json(
141 'https
://www
.lynda
.com
/ajax
/player
', video_id,
142 'Downloading video JSON
', fatal=False, query=query)
146 query['courseId
'] = course_id
148 play = self._download_json(
149 'https
://www
.lynda
.com
/ajax
/course
/%s/%s/play
'
150 % (course_id, video_id), video_id, 'Downloading play JSON
')
153 self._raise_unavailable(video_id)
156 for formats_dict in play:
157 urls = formats_dict.get('urls
')
158 if not isinstance(urls, dict):
160 cdn = formats_dict.get('name
')
161 for format_id, format_url in urls.items():
166 'format_id
': '%s-%s' % (cdn, format_id) if cdn else format_id,
167 'height
': int_or_none(format_id),
169 self._sort_formats(formats)
171 conviva = self._download_json(
172 'https
://www
.lynda
.com
/ajax
/player
/conviva
', video_id,
173 'Downloading conviva JSON
', query=query)
177 'title
': conviva['VideoTitle
'],
178 'description
': conviva.get('VideoDescription
'),
179 'release_year
': int_or_none(conviva.get('ReleaseYear
')),
180 'duration
': int_or_none(conviva.get('Duration
')),
181 'creator
': conviva.get('Author
'),
185 if 'Status
' in video:
186 raise ExtractorError(
187 'lynda returned error
: %s' % video['Message
'], expected=True)
189 if video.get('HasAccess
') is False:
190 self._raise_unavailable(video_id)
192 video_id = compat_str(video.get('ID
') or video_id)
193 duration = int_or_none(video.get('DurationInSeconds
'))
194 title = video['Title
']
198 fmts = video.get('Formats
')
202 'ext
': f.get('Extension
'),
203 'width
': int_or_none(f.get('Width
')),
204 'height
': int_or_none(f.get('Height
')),
205 'filesize
': int_or_none(f.get('FileSize
')),
206 'format_id
': compat_str(f.get('Resolution
')) if f.get('Resolution
') else None,
207 } for f in fmts if f.get('Url
')])
209 prioritized_streams = video.get('PrioritizedStreams
')
210 if prioritized_streams:
211 for prioritized_stream_id, prioritized_stream in prioritized_streams.items():
214 'height
': int_or_none(format_id),
215 'format_id
': '%s-%s' % (prioritized_stream_id, format_id),
216 } for format_id, video_url in prioritized_stream.items()])
218 self._check_formats(formats, video_id)
219 self._sort_formats(formats)
221 subtitles = self.extract_subtitles(video_id)
226 'duration
': duration,
227 'subtitles
': subtitles,
231 def _fix_subtitles(self, subs):
234 for pos in range(0, len(subs) - 1):
235 seq_current = subs[pos]
236 m_current = re.match(self._TIMECODE_REGEX, seq_current['Timecode
'])
237 if m_current is None:
239 seq_next = subs[pos + 1]
240 m_next = re.match(self._TIMECODE_REGEX, seq_next['Timecode
'])
243 appear_time = m_current.group('timecode
')
244 disappear_time = m_next.group('timecode
')
245 text = seq_current['Caption
'].strip()
248 srt += '%s\r\n%s --> %s\r\n%s\r\n\r\n' % (seq_counter, appear_time, disappear_time, text)
252 def _get_subtitles(self, video_id):
253 url = 'https
://www
.lynda
.com
/ajax
/player?videoId
=%s&type=transcript
' % video_id
254 subs = self._download_webpage(
255 url, video_id, 'Downloading subtitles JSON
', fatal=False)
256 if not subs or 'Status
="NotFound"' in subs:
258 subs = self._parse_json(subs, video_id, fatal=False)
261 fixed_subs = self._fix_subtitles(subs)
263 return {'en
': [{'ext
': 'srt
', 'data
': fixed_subs}]}
267 class LyndaCourseIE(LyndaBaseIE):
268 IE_NAME = 'lynda
:course
'
269 IE_DESC = 'lynda
.com online courses
'
271 # Course link equals to welcome/introduction video link of same course
272 # We will recognize it as course link
273 _VALID_URL = r'https?
://(?
:www|m
)\
.(?
:lynda\
.com|educourse\
.ga
)/(?P
<coursepath
>(?
:[^
/]+/){2,3}(?P
<courseid
>\d
+))-2\
.html
'
276 'url
': 'https
://www
.lynda
.com
/Graphic
-Design
-tutorials
/Grundlagen
-guten
-Gestaltung
/393570-2.html
',
277 'only_matching
': True,
279 'url
': 'https
://www
.lynda
.com
/de
/Graphic
-Design
-tutorials
/Grundlagen
-guten
-Gestaltung
/393570-2.html
',
280 'only_matching
': True,
283 def _real_extract(self, url):
284 mobj = re.match(self._VALID_URL, url)
285 course_path = mobj.group('coursepath
')
286 course_id = mobj.group('courseid
')
288 item_template = 'https
://www
.lynda
.com
/%s/%%s-4.html
' % course_path
290 course = self._download_json(
291 'https
://www
.lynda
.com
/ajax
/player?courseId
=%s&type=course
' % course_id,
292 course_id, 'Downloading course JSON
', fatal=False)
295 webpage = self._download_webpage(url, course_id)
298 item_template % video_id, ie=LyndaIE.ie_key(),
300 for video_id in re.findall(
301 r'data
-video
-id=["\'](\d+)', webpage)]
302 return self.playlist_result(
304 self._og_search_title(webpage, fatal=False),
305 self._og_search_description(webpage))
307 if course.get('Status') == 'NotFound':
308 raise ExtractorError(
309 'Course %s does not exist' % course_id, expected=True)
311 unaccessible_videos = 0
314 # Might want to extract videos right here from video['Formats'] as it seems 'Formats' is not provided
315 # by single video API anymore
317 for chapter in course['Chapters']:
318 for video in chapter.get('Videos', []):
319 if video.get('HasAccess') is False:
320 unaccessible_videos += 1
322 video_id = video.get('ID')
325 '_type': 'url_transparent',
326 'url': item_template % video_id,
327 'ie_key': LyndaIE.ie_key(),
328 'chapter': chapter.get('Title'),
329 'chapter_number': int_or_none(chapter.get('ChapterIndex')),
330 'chapter_id': compat_str(chapter.get('ID')),
333 if unaccessible_videos > 0:
334 self._downloader.report_warning(
335 '%s videos are only available for members (or paid members) and will not be downloaded. '
336 % unaccessible_videos + self._ACCOUNT_CREDENTIALS_HINT)
338 course_title = course.get('Title')
339 course_description = course.get('Description')
341 return self.playlist_result(entries, course_id, course_title, course_description)