1 from __future__ import unicode_literals
9 from .common import InfoExtractor
10 from ..compat import (
21 srt_subtitles_timecode,
26 class PluralsightBaseIE(InfoExtractor):
27 _API_BASE = 'http://app.pluralsight.com'
30 class PluralsightIE(PluralsightBaseIE):
31 IE_NAME = 'pluralsight'
32 _VALID_URL = r'https?://(?:(?:www|app)\.)?pluralsight\.com/training/player\?'
33 _LOGIN_URL = 'https://app.pluralsight.com/id/'
35 _NETRC_MACHINE = 'pluralsight'
38 'url': 'http://www.pluralsight.com/training/player?author=mike-mckeown&name=hosting-sql-server-windows-azure-iaas-m7-mgmt&mode=live&clip=3&course=hosting-sql-server-windows-azure-iaas',
39 'md5': '4d458cf5cf4c593788672419a8dd4cf8',
41 'id': 'hosting-sql-server-windows-azure-iaas-m7-mgmt-04',
43 'title': 'Management of SQL Server - Demo Monitoring',
46 'skip': 'Requires pluralsight account credentials',
48 'url': 'https://app.pluralsight.com/training/player?course=angularjs-get-started&author=scott-allen&name=angularjs-get-started-m1-introduction&clip=0&mode=live',
49 'only_matching': True,
51 # available without pluralsight account
52 'url': 'http://app.pluralsight.com/training/player?author=scott-allen&name=angularjs-get-started-m1-introduction&mode=live&clip=0&course=angularjs-get-started',
53 'only_matching': True,
56 def _real_initialize(self):
60 (username, password) = self._get_login_info()
64 login_page = self._download_webpage(
65 self._LOGIN_URL, None, 'Downloading login page')
67 login_form = self._hidden_inputs(login_page)
74 post_url = self._search_regex(
75 r'<form[^>]+action=(["\'])(?P<url>.+?)\1', login_page,
76 'post url', default=self._LOGIN_URL, group='url')
78 if not post_url.startswith('http'):
79 post_url = compat_urlparse.urljoin(self._LOGIN_URL, post_url)
81 request = sanitized_Request(
82 post_url, urlencode_postdata(login_form))
83 request.add_header('Content-Type', 'application/x-www-form-urlencoded')
85 response = self._download_webpage(
86 request, None, 'Logging in as %s' % username)
88 error = self._search_regex(
89 r'<span[^>]+class="field-validation-error"[^>]*>([^<]+)</span>',
90 response, 'error message', default=None)
92 raise ExtractorError('Unable to login: %s' % error, expected=True)
94 if all(p not in response for p in ('__INITIAL_STATE__', '"currentUser"')):
95 raise ExtractorError('Unable to log in')
97 def _get_subtitles(self, author, clip_id, lang, name, duration, video_id):
104 captions = self._download_json(
105 '%s/training/Player/Captions' % self._API_BASE, video_id,
106 'Downloading captions JSON', 'Unable to download captions JSON',
107 fatal=False, data=json.dumps(captions_post).encode('utf-8'),
108 headers={'Content-Type': 'application/json;charset=utf-8'})
113 'data': json.dumps(captions),
116 'data': self._convert_subtitles(duration, captions),
121 def _convert_subtitles(duration, subs):
123 for num, current in enumerate(subs):
125 start, text = float_or_none(
126 current.get('DisplayTimeOffset')), current.get('Text')
127 if start is None or text is None:
129 end = duration if num == len(subs) - 1 else float_or_none(
130 subs[num + 1].get('DisplayTimeOffset'))
131 srt += os.linesep.join(
135 srt_subtitles_timecode(start),
136 srt_subtitles_timecode(end)),
142 def _real_extract(self, url):
143 qs = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
145 author = qs.get('author', [None])[0]
146 name = qs.get('name', [None])[0]
147 clip_id = qs.get('clip', [None])[0]
148 course = qs.get('course', [None])[0]
150 if any(not f for f in (author, name, clip_id, course,)):
151 raise ExtractorError('Invalid URL', expected=True)
153 display_id = '%s-%s' % (name, clip_id)
155 webpage = self._download_webpage(url, display_id)
157 modules = self._search_regex(
158 r'moduleCollection\s*:\s*new\s+ModuleCollection\((\[.+?\])\s*,\s*\$rootScope\)',
159 webpage, 'modules', default=None)
162 collection = self._parse_json(modules, display_id)
164 # Webpage may be served in different layout (see
165 # https://github.com/rg3/youtube-dl/issues/7607)
166 collection = self._parse_json(
168 r'var\s+initialState\s*=\s*({.+?});\n', webpage, 'initial state'),
169 display_id)['course']['modules']
171 module, clip = None, None
173 for module_ in collection:
174 if name in (module_.get('moduleName'), module_.get('name')):
176 for clip_ in module_.get('clips', []):
177 clip_index = clip_.get('clipIndex')
178 if clip_index is None:
179 clip_index = clip_.get('index')
180 if clip_index is None:
182 if compat_str(clip_index) == clip_id:
187 raise ExtractorError('Unable to resolve clip')
189 title = '%s - %s' % (module['title'], clip['title'])
192 'low': {'width': 640, 'height': 480},
193 'medium': {'width': 848, 'height': 640},
194 'high': {'width': 1024, 'height': 768},
195 'high-widescreen': {'width': 1280, 'height': 720},
198 QUALITIES_PREFERENCE = ('low', 'medium', 'high', 'high-widescreen',)
199 quality_key = qualities(QUALITIES_PREFERENCE)
201 AllowedQuality = collections.namedtuple('AllowedQuality', ['ext', 'qualities'])
203 ALLOWED_QUALITIES = (
204 AllowedQuality('webm', ['high', ]),
205 AllowedQuality('mp4', ['low', 'medium', 'high', ]),
208 # Some courses also offer widescreen resolution for high quality (see
209 # https://github.com/rg3/youtube-dl/issues/7766)
210 widescreen = True if re.search(
211 r'courseSupportsWidescreenVideoFormats\s*:\s*true', webpage) else False
212 best_quality = 'high-widescreen' if widescreen else 'high'
214 for allowed_quality in ALLOWED_QUALITIES:
215 allowed_quality.qualities.append(best_quality)
217 # In order to minimize the number of calls to ViewClip API and reduce
218 # the probability of being throttled or banned by Pluralsight we will request
219 # only single format until formats listing was explicitly requested.
220 if self._downloader.params.get('listformats', False):
221 allowed_qualities = ALLOWED_QUALITIES
223 def guess_allowed_qualities():
224 req_format = self._downloader.params.get('format') or 'best'
225 req_format_split = req_format.split('-', 1)
226 if len(req_format_split) > 1:
227 req_ext, req_quality = req_format_split
228 for allowed_quality in ALLOWED_QUALITIES:
229 if req_ext == allowed_quality.ext and req_quality in allowed_quality.qualities:
230 return (AllowedQuality(req_ext, (req_quality, )), )
231 req_ext = 'webm' if self._downloader.params.get('prefer_free_formats') else 'mp4'
232 return (AllowedQuality(req_ext, (best_quality, )), )
233 allowed_qualities = guess_allowed_qualities()
236 for ext, qualities_ in allowed_qualities:
237 for quality in qualities_:
238 f = QUALITIES[quality].copy()
247 'q': '%dx%d' % (f['width'], f['height']),
249 request = sanitized_Request(
250 '%s/training/Player/ViewClip' % self._API_BASE,
251 json.dumps(clip_post).encode('utf-8'))
252 request.add_header('Content-Type', 'application/json;charset=utf-8')
253 format_id = '%s-%s' % (ext, quality)
254 clip_url = self._download_webpage(
255 request, display_id, 'Downloading %s URL' % format_id, fatal=False)
257 # Pluralsight tracks multiple sequential calls to ViewClip API and start
258 # to return 429 HTTP errors after some time (see
259 # https://github.com/rg3/youtube-dl/pull/6989). Moreover it may even lead
260 # to account ban (see https://github.com/rg3/youtube-dl/issues/6842).
261 # To somewhat reduce the probability of these consequences
262 # we will sleep random amount of time before each call to ViewClip.
264 random.randint(2, 5), display_id,
265 '%(video_id)s: Waiting for %(timeout)s seconds to avoid throttling')
272 'format_id': format_id,
273 'quality': quality_key(quality),
276 self._sort_formats(formats)
278 duration = int_or_none(
279 clip.get('duration')) or parse_duration(clip.get('formattedDuration'))
281 # TODO: other languages?
282 subtitles = self.extract_subtitles(
283 author, clip_id, 'en', name, duration, display_id)
286 'id': clip.get('clipName') or clip['name'],
288 'duration': duration,
291 'subtitles': subtitles,
295 class PluralsightCourseIE(PluralsightBaseIE):
296 IE_NAME = 'pluralsight:course'
297 _VALID_URL = r'https?://(?:(?:www|app)\.)?pluralsight\.com/(?:library/)?courses/(?P<id>[^/]+)'
299 # Free course from Pluralsight Starter Subscription for Microsoft TechNet
300 # https://offers.pluralsight.com/technet?loc=zTS3z&prod=zOTprodz&tech=zOttechz&prog=zOTprogz&type=zSOz&media=zOTmediaz&country=zUSz
301 'url': 'http://www.pluralsight.com/courses/hosting-sql-server-windows-azure-iaas',
303 'id': 'hosting-sql-server-windows-azure-iaas',
304 'title': 'Hosting SQL Server in Microsoft Azure IaaS Fundamentals',
305 'description': 'md5:61b37e60f21c4b2f91dc621a977d0986',
307 'playlist_count': 31,
309 # available without pluralsight account
310 'url': 'https://www.pluralsight.com/courses/angularjs-get-started',
311 'only_matching': True,
313 'url': 'https://app.pluralsight.com/library/courses/understanding-microsoft-azure-amazon-aws/table-of-contents',
314 'only_matching': True,
317 def _real_extract(self, url):
318 course_id = self._match_id(url)
322 course = self._download_json(
323 '%s/data/course/%s' % (self._API_BASE, course_id),
324 course_id, 'Downloading course JSON')
326 title = course['title']
327 description = course.get('description') or course.get('shortDescription')
329 course_data = self._download_json(
330 '%s/data/course/content/%s' % (self._API_BASE, course_id),
331 course_id, 'Downloading course data JSON')
334 for num, module in enumerate(course_data, 1):
335 for clip in module.get('clips', []):
336 player_parameters = clip.get('playerParameters')
337 if not player_parameters:
340 '_type': 'url_transparent',
341 'url': '%s/training/player?%s' % (self._API_BASE, player_parameters),
342 'ie_key': PluralsightIE.ie_key(),
343 'chapter': module.get('title'),
344 'chapter_number': num,
345 'chapter_id': module.get('moduleRef'),
348 return self.playlist_result(entries, course_id, title, description)