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/(?:[^/]+/[^/]+/\d+|player/embed)/(?P<id>\d+)'
99 _TIMECODE_REGEX = r'\[(?P<timecode>\d+:\d+:\d+[\.,]\d+)\]'
102 'url': 'http://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 _real_extract(self, url):
116 video_id = self._match_id(url)
118 video = self._download_json(
119 'http://www.lynda.com/ajax/player?videoId=%s&type=video' % video_id,
120 video_id, 'Downloading video JSON')
122 if 'Status' in video:
123 raise ExtractorError(
124 'lynda returned error: %s' % video['Message'], expected=True)
126 if video.get('HasAccess') is False:
127 self.raise_login_required('Video %s is only available for members' % video_id)
129 video_id = compat_str(video.get('ID') or video_id)
130 duration = int_or_none(video.get('DurationInSeconds'))
131 title = video['Title']
135 fmts = video.get('Formats')
139 'ext': f.get('Extension'),
140 'width': int_or_none(f.get('Width')),
141 'height': int_or_none(f.get('Height')),
142 'filesize': int_or_none(f.get('FileSize')),
143 'format_id': compat_str(f.get('Resolution')) if f.get('Resolution') else None,
144 } for f in fmts if f.get('Url')])
146 prioritized_streams = video.get('PrioritizedStreams')
147 if prioritized_streams:
148 for prioritized_stream_id, prioritized_stream in prioritized_streams.items():
151 'width': int_or_none(format_id),
152 'format_id': '%s-%s' % (prioritized_stream_id, format_id),
153 } for format_id, video_url in prioritized_stream.items()])
155 self._check_formats(formats, video_id)
156 self._sort_formats(formats)
158 subtitles = self.extract_subtitles(video_id)
163 'duration': duration,
164 'subtitles': subtitles,
168 def _fix_subtitles(self, subs):
171 for pos in range(0, len(subs) - 1):
172 seq_current = subs[pos]
173 m_current = re.match(self._TIMECODE_REGEX, seq_current['Timecode'])
174 if m_current is None:
176 seq_next = subs[pos + 1]
177 m_next = re.match(self._TIMECODE_REGEX, seq_next['Timecode'])
180 appear_time = m_current.group('timecode')
181 disappear_time = m_next.group('timecode')
182 text = seq_current['Caption'].strip()
185 srt += '%s\r\n%s --> %s\r\n%s\r\n\r\n' % (seq_counter, appear_time, disappear_time, text)
189 def _get_subtitles(self, video_id):
190 url = 'http://www.lynda.com/ajax/player?videoId=%s&type=transcript' % video_id
191 subs = self._download_json(url, None, False)
193 return {'en': [{'ext': 'srt', 'data': self._fix_subtitles(subs)}]}
198 class LyndaCourseIE(LyndaBaseIE):
199 IE_NAME = 'lynda:course'
200 IE_DESC = 'lynda.com online courses'
202 # Course link equals to welcome/introduction video link of same course
203 # We will recognize it as course link
204 _VALID_URL = r'https?://(?:www|m)\.lynda\.com/(?P<coursepath>[^/]+/[^/]+/(?P<courseid>\d+))-\d\.html'
206 def _real_extract(self, url):
207 mobj = re.match(self._VALID_URL, url)
208 course_path = mobj.group('coursepath')
209 course_id = mobj.group('courseid')
211 course = self._download_json(
212 'http://www.lynda.com/ajax/player?courseId=%s&type=course' % course_id,
213 course_id, 'Downloading course JSON')
215 if course.get('Status') == 'NotFound':
216 raise ExtractorError(
217 'Course %s does not exist' % course_id, expected=True)
219 unaccessible_videos = 0
222 # Might want to extract videos right here from video['Formats'] as it seems 'Formats' is not provided
223 # by single video API anymore
225 for chapter in course['Chapters']:
226 for video in chapter.get('Videos', []):
227 if video.get('HasAccess') is False:
228 unaccessible_videos += 1
230 video_id = video.get('ID')
233 '_type': 'url_transparent',
234 'url': 'http://www.lynda.com/%s/%s-4.html' % (course_path, video_id),
235 'ie_key': LyndaIE.ie_key(),
236 'chapter': chapter.get('Title'),
237 'chapter_number': int_or_none(chapter.get('ChapterIndex')),
238 'chapter_id': compat_str(chapter.get('ID')),
241 if unaccessible_videos > 0:
242 self._downloader.report_warning(
243 '%s videos are only available for members (or paid members) and will not be downloaded. '
244 % unaccessible_videos + self._ACCOUNT_CREDENTIALS_HINT)
246 course_title = course.get('Title')
247 course_description = course.get('Description')
249 return self.playlist_result(entries, course_id, course_title, course_description)