3 from .common
import InfoExtractor
15 class LyndaBaseIE(InfoExtractor
):
16 _SIGNIN_URL
= 'https://www.lynda.com/signin/lynda'
17 _PASSWORD_URL
= 'https://www.lynda.com/signin/password'
18 _USER_URL
= 'https://www.lynda.com/signin/user'
19 _ACCOUNT_CREDENTIALS_HINT
= 'Use --username and --password options to provide lynda.com account credentials.'
20 _NETRC_MACHINE
= 'lynda'
23 def _check_error(json_string
, key_or_keys
):
24 keys
= [key_or_keys
] if isinstance(key_or_keys
, compat_str
) else key_or_keys
26 error
= json_string
.get(key
)
28 raise ExtractorError('Unable to login: %s' % error
, expected
=True)
30 def _perform_login_step(self
, form_html
, fallback_action_url
, extra_form_data
, note
, referrer_url
):
31 action_url
= self
._search
_regex
(
32 r
'<form[^>]+action=(["\'])(?P
<url
>.+?
)\
1', form_html,
33 'post url
', default=fallback_action_url, group='url
')
35 if not action_url.startswith('http
'):
36 action_url = compat_urlparse.urljoin(self._SIGNIN_URL, action_url)
38 form_data = self._hidden_inputs(form_html)
39 form_data.update(extra_form_data)
41 response = self._download_json(
42 action_url, None, note,
43 data=urlencode_postdata(form_data),
45 'Referer
': referrer_url,
46 'X
-Requested
-With
': 'XMLHttpRequest
',
47 }, expected_status=(418, 500, ))
49 self._check_error(response, ('email
', 'password
', 'ErrorMessage
'))
51 return response, action_url
53 def _perform_login(self, username, password):
54 # Step 1: download signin page
55 signin_page = self._download_webpage(
56 self._SIGNIN_URL, None, 'Downloading signin page
')
59 if any(re.search(p, signin_page) for p in (
60 r'isLoggedIn\s
*:\s
*true
', r'logout\
.aspx
', r'>Log out
<')):
63 # Step 2: submit email
64 signin_form = self._search_regex(
65 r'(?s
)(<form
[^
>]+data
-form
-name
=["\']signin["\'][^
>]*>.+?
</form
>)',
66 signin_page, 'signin form
')
67 signin_page, signin_url = self._login_step(
68 signin_form, self._PASSWORD_URL, {'email': username},
69 'Submitting email
', self._SIGNIN_URL)
71 # Step 3: submit password
72 password_form = signin_page['body
']
74 password_form, self._USER_URL, {'email': username, 'password': password},
75 'Submitting password
', signin_url)
78 class LyndaIE(LyndaBaseIE):
80 IE_DESC = 'lynda
.com videos
'
83 (?:www\.)?(?:lynda\.com|educourse\.ga)/
85 (?:[^/]+/){2,3}(?P<course_id>\d+)|
91 _TIMECODE_REGEX = r'\
[(?P
<timecode
>\d
+:\d
+:\d
+[\
.,]\d
+)\
]'
94 'url
': 'https
://www
.lynda
.com
/Bootstrap
-tutorials
/Using
-exercise
-files
/110885/114408-4.html
',
99 'title
': 'Using the exercise files
',
103 'url
': 'https
://www
.lynda
.com
/player
/embed
/133770?tr
=foo
=1;bar
=g
;fizz
=rt
&fs
=0',
104 'only_matching
': True,
106 'url
': 'https
://educourse
.ga
/Bootstrap
-tutorials
/Using
-exercise
-files
/110885/114408-4.html
',
107 'only_matching
': True,
109 'url
': 'https
://www
.lynda
.com
/de
/Graphic
-Design
-tutorials
/Willkommen
-Grundlagen
-guten
-Gestaltung
/393570/393572-4.html
',
110 'only_matching
': True,
112 # Status="NotFound", Message="Transcript not found"
113 'url
': 'https
://www
.lynda
.com
/ASP
-NET
-tutorials
/What
-you
-should
-know
/5034180/2811512-4.html
',
114 'only_matching
': True,
117 def _raise_unavailable(self, video_id):
118 self.raise_login_required(
119 'Video
%s is only available
for members
' % video_id)
121 def _real_extract(self, url):
122 mobj = self._match_valid_url(url)
123 video_id = mobj.group('id')
124 course_id = mobj.group('course_id
')
131 video = self._download_json(
132 'https
://www
.lynda
.com
/ajax
/player
', video_id,
133 'Downloading video JSON
', fatal=False, query=query)
137 query['courseId
'] = course_id
139 play = self._download_json(
140 'https
://www
.lynda
.com
/ajax
/course
/%s/%s/play
'
141 % (course_id, video_id), video_id, 'Downloading play JSON
')
144 self._raise_unavailable(video_id)
147 for formats_dict in play:
148 urls = formats_dict.get('urls
')
149 if not isinstance(urls, dict):
151 cdn = formats_dict.get('name
')
152 for format_id, format_url in urls.items():
157 'format_id
': '%s-%s' % (cdn, format_id) if cdn else format_id,
158 'height
': int_or_none(format_id),
161 conviva = self._download_json(
162 'https
://www
.lynda
.com
/ajax
/player
/conviva
', video_id,
163 'Downloading conviva JSON
', query=query)
167 'title
': conviva['VideoTitle
'],
168 'description
': conviva.get('VideoDescription
'),
169 'release_year
': int_or_none(conviva.get('ReleaseYear
')),
170 'duration
': int_or_none(conviva.get('Duration
')),
171 'creator
': conviva.get('Author
'),
175 if 'Status
' in video:
176 raise ExtractorError(
177 'lynda returned error
: %s' % video['Message
'], expected=True)
179 if video.get('HasAccess
') is False:
180 self._raise_unavailable(video_id)
182 video_id = compat_str(video.get('ID
') or video_id)
183 duration = int_or_none(video.get('DurationInSeconds
'))
184 title = video['Title
']
188 fmts = video.get('Formats
')
192 'ext
': f.get('Extension
'),
193 'width
': int_or_none(f.get('Width
')),
194 'height
': int_or_none(f.get('Height
')),
195 'filesize
': int_or_none(f.get('FileSize
')),
196 'format_id
': compat_str(f.get('Resolution
')) if f.get('Resolution
') else None,
197 } for f in fmts if f.get('Url
')])
199 prioritized_streams = video.get('PrioritizedStreams
')
200 if prioritized_streams:
201 for prioritized_stream_id, prioritized_stream in prioritized_streams.items():
204 'height
': int_or_none(format_id),
205 'format_id
': '%s-%s' % (prioritized_stream_id, format_id),
206 } for format_id, video_url in prioritized_stream.items()])
208 self._check_formats(formats, video_id)
210 subtitles = self.extract_subtitles(video_id)
215 'duration
': duration,
216 'subtitles
': subtitles,
220 def _fix_subtitles(self, subs):
223 for pos in range(0, len(subs) - 1):
224 seq_current = subs[pos]
225 m_current = re.match(self._TIMECODE_REGEX, seq_current['Timecode
'])
226 if m_current is None:
228 seq_next = subs[pos + 1]
229 m_next = re.match(self._TIMECODE_REGEX, seq_next['Timecode
'])
232 appear_time = m_current.group('timecode
')
233 disappear_time = m_next.group('timecode
')
234 text = seq_current['Caption
'].strip()
237 srt += '%s\r\n%s --> %s\r\n%s\r\n\r\n' % (seq_counter, appear_time, disappear_time, text)
241 def _get_subtitles(self, video_id):
242 url = 'https
://www
.lynda
.com
/ajax
/player?videoId
=%s&type=transcript
' % video_id
243 subs = self._download_webpage(
244 url, video_id, 'Downloading subtitles JSON
', fatal=False)
245 if not subs or 'Status
="NotFound"' in subs:
247 subs = self._parse_json(subs, video_id, fatal=False)
250 fixed_subs = self._fix_subtitles(subs)
252 return {'en': [{'ext': 'srt', 'data': fixed_subs}]}
256 class LyndaCourseIE(LyndaBaseIE):
257 IE_NAME = 'lynda
:course
'
258 IE_DESC = 'lynda
.com online courses
'
260 # Course link equals to welcome/introduction video link of same course
261 # We will recognize it as course link
262 _VALID_URL = r'https?
://(?
:www|m
)\
.(?
:lynda\
.com|educourse\
.ga
)/(?P
<coursepath
>(?
:[^
/]+/){2,3}
(?P
<courseid
>\d
+))-2\
.html
'
265 'url
': 'https
://www
.lynda
.com
/Graphic
-Design
-tutorials
/Grundlagen
-guten
-Gestaltung
/393570-2.html
',
266 'only_matching
': True,
268 'url
': 'https
://www
.lynda
.com
/de
/Graphic
-Design
-tutorials
/Grundlagen
-guten
-Gestaltung
/393570-2.html
',
269 'only_matching
': True,
272 def _real_extract(self, url):
273 mobj = self._match_valid_url(url)
274 course_path = mobj.group('coursepath
')
275 course_id = mobj.group('courseid
')
277 item_template = 'https
://www
.lynda
.com
/%s/%%s-4.html
' % course_path
279 course = self._download_json(
280 'https
://www
.lynda
.com
/ajax
/player?courseId
=%s&type=course
' % course_id,
281 course_id, 'Downloading course JSON
', fatal=False)
284 webpage = self._download_webpage(url, course_id)
287 item_template % video_id, ie=LyndaIE.ie_key(),
289 for video_id in re.findall(
290 r'data
-video
-id=["\'](\d+)', webpage)]
291 return self.playlist_result(
293 self._og_search_title(webpage, fatal=False),
294 self._og_search_description(webpage))
296 if course.get('Status') == 'NotFound':
297 raise ExtractorError(
298 'Course %s does not exist' % course_id, expected=True)
300 unaccessible_videos = 0
303 # Might want to extract videos right here from video['Formats'] as it seems 'Formats' is not provided
304 # by single video API anymore
306 for chapter in course['Chapters']:
307 for video in chapter.get('Videos', []):
308 if video.get('HasAccess') is False:
309 unaccessible_videos += 1
311 video_id = video.get('ID')
314 '_type': 'url_transparent',
315 'url': item_template % video_id,
316 'ie_key': LyndaIE.ie_key(),
317 'chapter': chapter.get('Title'),
318 'chapter_number': int_or_none(chapter.get('ChapterIndex')),
319 'chapter_id': compat_str(chapter.get('ID')),
322 if unaccessible_videos > 0:
324 '%s videos are only available for members (or paid members) and will not be downloaded. '
325 % unaccessible_videos + self._ACCOUNT_CREDENTIALS_HINT)
327 course_title = course.get('Title')
328 course_description = course.get('Description')
330 return self.playlist_result(entries, course_id, course_title, course_description)