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'
25 def _check_error(json_string
, key_or_keys
):
26 keys
= [key_or_keys
] if isinstance(key_or_keys
, compat_str
) else key_or_keys
28 error
= json_string
.get(key
)
30 raise ExtractorError('Unable to login: %s' % error
, expected
=True)
32 def _perform_login_step(self
, form_html
, fallback_action_url
, extra_form_data
, note
, referrer_url
):
33 action_url
= self
._search
_regex
(
34 r
'<form[^>]+action=(["\'])(?P
<url
>.+?
)\
1', form_html,
35 'post url
', default=fallback_action_url, group='url
')
37 if not action_url.startswith('http
'):
38 action_url = compat_urlparse.urljoin(self._SIGNIN_URL, action_url)
40 form_data = self._hidden_inputs(form_html)
41 form_data.update(extra_form_data)
43 response = self._download_json(
44 action_url, None, note,
45 data=urlencode_postdata(form_data),
47 'Referer
': referrer_url,
48 'X
-Requested
-With
': 'XMLHttpRequest
',
49 }, expected_status=(418, 500, ))
51 self._check_error(response, ('email
', 'password
', 'ErrorMessage
'))
53 return response, action_url
55 def _perform_login(self, username, password):
56 # Step 1: download signin page
57 signin_page = self._download_webpage(
58 self._SIGNIN_URL, None, 'Downloading signin page
')
61 if any(re.search(p, signin_page) for p in (
62 r'isLoggedIn\s
*:\s
*true
', r'logout\
.aspx
', r'>Log out
<')):
65 # Step 2: submit email
66 signin_form = self._search_regex(
67 r'(?s
)(<form
[^
>]+data
-form
-name
=["\']signin["\'][^
>]*>.+?
</form
>)',
68 signin_page, 'signin form
')
69 signin_page, signin_url = self._login_step(
70 signin_form, self._PASSWORD_URL, {'email': username},
71 'Submitting email
', self._SIGNIN_URL)
73 # Step 3: submit password
74 password_form = signin_page['body
']
76 password_form, self._USER_URL, {'email': username, 'password': password},
77 'Submitting password
', signin_url)
80 class LyndaIE(LyndaBaseIE):
82 IE_DESC = 'lynda
.com videos
'
85 (?:www\.)?(?:lynda\.com|educourse\.ga)/
87 (?:[^/]+/){2,3}(?P<course_id>\d+)|
93 _TIMECODE_REGEX = r'\
[(?P
<timecode
>\d
+:\d
+:\d
+[\
.,]\d
+)\
]'
96 'url
': 'https
://www
.lynda
.com
/Bootstrap
-tutorials
/Using
-exercise
-files
/110885/114408-4.html
',
101 'title
': 'Using the exercise files
',
105 'url
': 'https
://www
.lynda
.com
/player
/embed
/133770?tr
=foo
=1;bar
=g
;fizz
=rt
&fs
=0',
106 'only_matching
': True,
108 'url
': 'https
://educourse
.ga
/Bootstrap
-tutorials
/Using
-exercise
-files
/110885/114408-4.html
',
109 'only_matching
': True,
111 'url
': 'https
://www
.lynda
.com
/de
/Graphic
-Design
-tutorials
/Willkommen
-Grundlagen
-guten
-Gestaltung
/393570/393572-4.html
',
112 'only_matching
': True,
114 # Status="NotFound", Message="Transcript not found"
115 'url
': 'https
://www
.lynda
.com
/ASP
-NET
-tutorials
/What
-you
-should
-know
/5034180/2811512-4.html
',
116 'only_matching
': True,
119 def _raise_unavailable(self, video_id):
120 self.raise_login_required(
121 'Video
%s is only available
for members
' % video_id)
123 def _real_extract(self, url):
124 mobj = self._match_valid_url(url)
125 video_id = mobj.group('id')
126 course_id = mobj.group('course_id
')
133 video = self._download_json(
134 'https
://www
.lynda
.com
/ajax
/player
', video_id,
135 'Downloading video JSON
', fatal=False, query=query)
139 query['courseId
'] = course_id
141 play = self._download_json(
142 'https
://www
.lynda
.com
/ajax
/course
/%s/%s/play
'
143 % (course_id, video_id), video_id, 'Downloading play JSON
')
146 self._raise_unavailable(video_id)
149 for formats_dict in play:
150 urls = formats_dict.get('urls
')
151 if not isinstance(urls, dict):
153 cdn = formats_dict.get('name
')
154 for format_id, format_url in urls.items():
159 'format_id
': '%s-%s' % (cdn, format_id) if cdn else format_id,
160 'height
': int_or_none(format_id),
162 self._sort_formats(formats)
164 conviva = self._download_json(
165 'https
://www
.lynda
.com
/ajax
/player
/conviva
', video_id,
166 'Downloading conviva JSON
', query=query)
170 'title
': conviva['VideoTitle
'],
171 'description
': conviva.get('VideoDescription
'),
172 'release_year
': int_or_none(conviva.get('ReleaseYear
')),
173 'duration
': int_or_none(conviva.get('Duration
')),
174 'creator
': conviva.get('Author
'),
178 if 'Status
' in video:
179 raise ExtractorError(
180 'lynda returned error
: %s' % video['Message
'], expected=True)
182 if video.get('HasAccess
') is False:
183 self._raise_unavailable(video_id)
185 video_id = compat_str(video.get('ID
') or video_id)
186 duration = int_or_none(video.get('DurationInSeconds
'))
187 title = video['Title
']
191 fmts = video.get('Formats
')
195 'ext
': f.get('Extension
'),
196 'width
': int_or_none(f.get('Width
')),
197 'height
': int_or_none(f.get('Height
')),
198 'filesize
': int_or_none(f.get('FileSize
')),
199 'format_id
': compat_str(f.get('Resolution
')) if f.get('Resolution
') else None,
200 } for f in fmts if f.get('Url
')])
202 prioritized_streams = video.get('PrioritizedStreams
')
203 if prioritized_streams:
204 for prioritized_stream_id, prioritized_stream in prioritized_streams.items():
207 'height
': int_or_none(format_id),
208 'format_id
': '%s-%s' % (prioritized_stream_id, format_id),
209 } for format_id, video_url in prioritized_stream.items()])
211 self._check_formats(formats, video_id)
212 self._sort_formats(formats)
214 subtitles = self.extract_subtitles(video_id)
219 'duration
': duration,
220 'subtitles
': subtitles,
224 def _fix_subtitles(self, subs):
227 for pos in range(0, len(subs) - 1):
228 seq_current = subs[pos]
229 m_current = re.match(self._TIMECODE_REGEX, seq_current['Timecode
'])
230 if m_current is None:
232 seq_next = subs[pos + 1]
233 m_next = re.match(self._TIMECODE_REGEX, seq_next['Timecode
'])
236 appear_time = m_current.group('timecode
')
237 disappear_time = m_next.group('timecode
')
238 text = seq_current['Caption
'].strip()
241 srt += '%s\r\n%s --> %s\r\n%s\r\n\r\n' % (seq_counter, appear_time, disappear_time, text)
245 def _get_subtitles(self, video_id):
246 url = 'https
://www
.lynda
.com
/ajax
/player?videoId
=%s&type=transcript
' % video_id
247 subs = self._download_webpage(
248 url, video_id, 'Downloading subtitles JSON
', fatal=False)
249 if not subs or 'Status
="NotFound"' in subs:
251 subs = self._parse_json(subs, video_id, fatal=False)
254 fixed_subs = self._fix_subtitles(subs)
256 return {'en': [{'ext': 'srt', 'data': fixed_subs}]}
260 class LyndaCourseIE(LyndaBaseIE):
261 IE_NAME = 'lynda
:course
'
262 IE_DESC = 'lynda
.com online courses
'
264 # Course link equals to welcome/introduction video link of same course
265 # We will recognize it as course link
266 _VALID_URL = r'https?
://(?
:www|m
)\
.(?
:lynda\
.com|educourse\
.ga
)/(?P
<coursepath
>(?
:[^
/]+/){2,3}
(?P
<courseid
>\d
+))-2\
.html
'
269 'url
': 'https
://www
.lynda
.com
/Graphic
-Design
-tutorials
/Grundlagen
-guten
-Gestaltung
/393570-2.html
',
270 'only_matching
': True,
272 'url
': 'https
://www
.lynda
.com
/de
/Graphic
-Design
-tutorials
/Grundlagen
-guten
-Gestaltung
/393570-2.html
',
273 'only_matching
': True,
276 def _real_extract(self, url):
277 mobj = self._match_valid_url(url)
278 course_path = mobj.group('coursepath
')
279 course_id = mobj.group('courseid
')
281 item_template = 'https
://www
.lynda
.com
/%s/%%s-4.html
' % course_path
283 course = self._download_json(
284 'https
://www
.lynda
.com
/ajax
/player?courseId
=%s&type=course
' % course_id,
285 course_id, 'Downloading course JSON
', fatal=False)
288 webpage = self._download_webpage(url, course_id)
291 item_template % video_id, ie=LyndaIE.ie_key(),
293 for video_id in re.findall(
294 r'data
-video
-id=["\'](\d+)', webpage)]
295 return self.playlist_result(
297 self._og_search_title(webpage, fatal=False),
298 self._og_search_description(webpage))
300 if course.get('Status') == 'NotFound':
301 raise ExtractorError(
302 'Course %s does not exist' % course_id, expected=True)
304 unaccessible_videos = 0
307 # Might want to extract videos right here from video['Formats'] as it seems 'Formats' is not provided
308 # by single video API anymore
310 for chapter in course['Chapters']:
311 for video in chapter.get('Videos', []):
312 if video.get('HasAccess') is False:
313 unaccessible_videos += 1
315 video_id = video.get('ID')
318 '_type': 'url_transparent',
319 'url': item_template % video_id,
320 'ie_key': LyndaIE.ie_key(),
321 'chapter': chapter.get('Title'),
322 'chapter_number': int_or_none(chapter.get('ChapterIndex')),
323 'chapter_id': compat_str(chapter.get('ID')),
326 if unaccessible_videos > 0:
328 '%s videos are only available for members (or paid members) and will not be downloaded. '
329 % unaccessible_videos + self._ACCOUNT_CREDENTIALS_HINT)
331 course_title = course.get('Title')
332 course_description = course.get('Description')
334 return self.playlist_result(entries, course_id, course_title, course_description)