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 '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
'
97 _VALID_URL = r'https?
://(?
:www\
.)?lynda\
.com
/(?
:[^
/]+/[^
/]+/(?P
<course_id
>\d
+)|player
/embed
)/(?P
<id>\d
+)'
99 _TIMECODE_REGEX = r'\
[(?P
<timecode
>\d
+:\d
+:\d
+[\
.,]\d
+)\
]'
102 'url
': 'https
://www
.lynda
.com
/Bootstrap
-tutorials
/Using
-exercise
-files
/110885/114408-4.html
',
107 'title
': 'Using the exercise files
',
111 'url
': 'https
://www
.lynda
.com
/player
/embed
/133770?tr
=foo
=1;bar
=g
;fizz
=rt
&fs
=0',
112 'only_matching
': True,
115 def _raise_unavailable(self, video_id):
116 self.raise_login_required(
117 'Video
%s is only available
for members
' % video_id)
119 def _real_extract(self, url):
120 mobj = re.match(self._VALID_URL, url)
121 video_id = mobj.group('id')
122 course_id = mobj.group('course_id
')
129 video = self._download_json(
130 'https
://www
.lynda
.com
/ajax
/player
', video_id,
131 'Downloading video JSON
', fatal=False, query=query)
135 query['courseId
'] = course_id
137 play = self._download_json(
138 'https
://www
.lynda
.com
/ajax
/course
/%s/%s/play
'
139 % (course_id, video_id), video_id, 'Downloading play JSON
')
142 self._raise_unavailable(video_id)
145 for formats_dict in play:
146 urls = formats_dict.get('urls
')
147 if not isinstance(urls, dict):
149 cdn = formats_dict.get('name
')
150 for format_id, format_url in urls.items():
155 'format_id
': '%s-%s' % (cdn, format_id) if cdn else format_id,
156 'height
': int_or_none(format_id),
158 self._sort_formats(formats)
160 conviva = self._download_json(
161 'https
://www
.lynda
.com
/ajax
/player
/conviva
', video_id,
162 'Downloading conviva JSON
', query=query)
166 'title
': conviva['VideoTitle
'],
167 'description
': conviva.get('VideoDescription
'),
168 'release_year
': int_or_none(conviva.get('ReleaseYear
')),
169 'duration
': int_or_none(conviva.get('Duration
')),
170 'creator
': conviva.get('Author
'),
174 if 'Status
' in video:
175 raise ExtractorError(
176 'lynda returned error
: %s' % video['Message
'], expected=True)
178 if video.get('HasAccess
') is False:
179 self._raise_unavailable(video_id)
181 video_id = compat_str(video.get('ID
') or video_id)
182 duration = int_or_none(video.get('DurationInSeconds
'))
183 title = video['Title
']
187 fmts = video.get('Formats
')
191 'ext
': f.get('Extension
'),
192 'width
': int_or_none(f.get('Width
')),
193 'height
': int_or_none(f.get('Height
')),
194 'filesize
': int_or_none(f.get('FileSize
')),
195 'format_id
': compat_str(f.get('Resolution
')) if f.get('Resolution
') else None,
196 } for f in fmts if f.get('Url
')])
198 prioritized_streams = video.get('PrioritizedStreams
')
199 if prioritized_streams:
200 for prioritized_stream_id, prioritized_stream in prioritized_streams.items():
203 'height
': int_or_none(format_id),
204 'format_id
': '%s-%s' % (prioritized_stream_id, format_id),
205 } for format_id, video_url in prioritized_stream.items()])
207 self._check_formats(formats, video_id)
208 self._sort_formats(formats)
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_json(url, None, False)
245 return {'en': [{'ext': 'srt', 'data': self._fix_subtitles(subs)}]}
250 class LyndaCourseIE(LyndaBaseIE):
251 IE_NAME = 'lynda
:course
'
252 IE_DESC = 'lynda
.com online courses
'
254 # Course link equals to welcome/introduction video link of same course
255 # We will recognize it as course link
256 _VALID_URL = r'https?
://(?
:www|m
)\
.lynda\
.com
/(?P
<coursepath
>[^
/]+/[^
/]+/(?P
<courseid
>\d
+))-\d\
.html
'
258 def _real_extract(self, url):
259 mobj = re.match(self._VALID_URL, url)
260 course_path = mobj.group('coursepath
')
261 course_id = mobj.group('courseid
')
263 course = self._download_json(
264 'https
://www
.lynda
.com
/ajax
/player?courseId
=%s&type=course
' % course_id,
265 course_id, 'Downloading course JSON
')
267 if course.get('Status
') == 'NotFound
':
268 raise ExtractorError(
269 'Course
%s does
not exist
' % course_id, expected=True)
271 unaccessible_videos = 0
274 # Might want to extract videos right here from video['Formats
'] as it seems 'Formats
' is not provided
275 # by single video API anymore
277 for chapter in course['Chapters
']:
278 for video in chapter.get('Videos
', []):
279 if video.get('HasAccess
') is False:
280 unaccessible_videos += 1
282 video_id = video.get('ID
')
285 '_type
': 'url_transparent
',
286 'url
': 'https
://www
.lynda
.com
/%s/%s-4.html
' % (course_path, video_id),
287 'ie_key
': LyndaIE.ie_key(),
288 'chapter
': chapter.get('Title
'),
289 'chapter_number
': int_or_none(chapter.get('ChapterIndex
')),
290 'chapter_id
': compat_str(chapter.get('ID
')),
293 if unaccessible_videos > 0:
294 self._downloader.report_warning(
295 '%s videos are only available
for members (or paid members
) and will
not be downloaded
. '
296 % unaccessible_videos + self._ACCOUNT_CREDENTIALS_HINT)
298 course_title = course.get('Title
')
299 course_description = course.get('Description
')
301 return self.playlist_result(entries, course_id, course_title, course_description)