1 from __future__ import unicode_literals
9 from .common import InfoExtractor
10 from ..compat import (
20 srt_subtitles_timecode,
25 class PluralsightBaseIE(InfoExtractor):
26 _API_BASE = 'http://app.pluralsight.com'
29 class PluralsightIE(PluralsightBaseIE):
30 IE_NAME = 'pluralsight'
31 _VALID_URL = r'https?://(?:(?:www|app)\.)?pluralsight\.com/training/player\?'
32 _LOGIN_URL = 'https://app.pluralsight.com/id/'
34 _NETRC_MACHINE = 'pluralsight'
37 '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',
38 'md5': '4d458cf5cf4c593788672419a8dd4cf8',
40 'id': 'hosting-sql-server-windows-azure-iaas-m7-mgmt-04',
42 'title': 'Management of SQL Server - Demo Monitoring',
45 'skip': 'Requires pluralsight account credentials',
47 'url': 'https://app.pluralsight.com/training/player?course=angularjs-get-started&author=scott-allen&name=angularjs-get-started-m1-introduction&clip=0&mode=live',
48 'only_matching': True,
50 # available without pluralsight account
51 'url': 'http://app.pluralsight.com/training/player?author=scott-allen&name=angularjs-get-started-m1-introduction&mode=live&clip=0&course=angularjs-get-started',
52 'only_matching': True,
55 def _real_initialize(self):
59 (username, password) = self._get_login_info()
63 login_page = self._download_webpage(
64 self._LOGIN_URL, None, 'Downloading login page')
66 login_form = self._hidden_inputs(login_page)
73 post_url = self._search_regex(
74 r'<form[^>]+action=(["\'])(?P<url>.+?)\1', login_page,
75 'post url', default=self._LOGIN_URL, group='url')
77 if not post_url.startswith('http'):
78 post_url = compat_urlparse.urljoin(self._LOGIN_URL, post_url)
80 response = self._download_webpage(
81 post_url, None, 'Logging in as %s' % username,
82 data=urlencode_postdata(login_form),
83 headers={'Content-Type': 'application/x-www-form-urlencoded'})
85 error = self._search_regex(
86 r'<span[^>]+class="field-validation-error"[^>]*>([^<]+)</span>',
87 response, 'error message', default=None)
89 raise ExtractorError('Unable to login: %s' % error, expected=True)
91 if all(p not in response for p in ('__INITIAL_STATE__', '"currentUser"')):
92 raise ExtractorError('Unable to log in')
94 def _get_subtitles(self, author, clip_id, lang, name, duration, video_id):
101 captions = self._download_json(
102 '%s/training/Player/Captions' % self._API_BASE, video_id,
103 'Downloading captions JSON', 'Unable to download captions JSON',
104 fatal=False, data=json.dumps(captions_post).encode('utf-8'),
105 headers={'Content-Type': 'application/json;charset=utf-8'})
110 'data': json.dumps(captions),
113 'data': self._convert_subtitles(duration, captions),
118 def _convert_subtitles(duration, subs):
120 for num, current in enumerate(subs):
122 start, text = float_or_none(
123 current.get('DisplayTimeOffset')), current.get('Text')
124 if start is None or text is None:
126 end = duration if num == len(subs) - 1 else float_or_none(
127 subs[num + 1].get('DisplayTimeOffset'))
130 srt += os.linesep.join(
134 srt_subtitles_timecode(start),
135 srt_subtitles_timecode(end)),
141 def _real_extract(self, url):
142 qs = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
144 author = qs.get('author', [None])[0]
145 name = qs.get('name', [None])[0]
146 clip_id = qs.get('clip', [None])[0]
147 course = qs.get('course', [None])[0]
149 if any(not f for f in (author, name, clip_id, course,)):
150 raise ExtractorError('Invalid URL', expected=True)
152 display_id = '%s-%s' % (name, clip_id)
154 webpage = self._download_webpage(url, display_id)
156 modules = self._search_regex(
157 r'moduleCollection\s*:\s*new\s+ModuleCollection\((\[.+?\])\s*,\s*\$rootScope\)',
158 webpage, 'modules', default=None)
161 collection = self._parse_json(modules, display_id)
163 # Webpage may be served in different layout (see
164 # https://github.com/rg3/youtube-dl/issues/7607)
165 collection = self._parse_json(
167 r'var\s+initialState\s*=\s*({.+?});\n', webpage, 'initial state'),
168 display_id)['course']['modules']
170 module, clip = None, None
172 for module_ in collection:
173 if name in (module_.get('moduleName'), module_.get('name')):
175 for clip_ in module_.get('clips', []):
176 clip_index = clip_.get('clipIndex')
177 if clip_index is None:
178 clip_index = clip_.get('index')
179 if clip_index is None:
181 if compat_str(clip_index) == clip_id:
186 raise ExtractorError('Unable to resolve clip')
188 title = '%s - %s' % (module['title'], clip['title'])
191 'low': {'width': 640, 'height': 480},
192 'medium': {'width': 848, 'height': 640},
193 'high': {'width': 1024, 'height': 768},
194 'high-widescreen': {'width': 1280, 'height': 720},
197 QUALITIES_PREFERENCE = ('low', 'medium', 'high', 'high-widescreen',)
198 quality_key = qualities(QUALITIES_PREFERENCE)
200 AllowedQuality = collections.namedtuple('AllowedQuality', ['ext', 'qualities'])
202 ALLOWED_QUALITIES = (
203 AllowedQuality('webm', ['high', ]),
204 AllowedQuality('mp4', ['low', 'medium', 'high', ]),
207 # Some courses also offer widescreen resolution for high quality (see
208 # https://github.com/rg3/youtube-dl/issues/7766)
209 widescreen = True if re.search(
210 r'courseSupportsWidescreenVideoFormats\s*:\s*true', webpage) else False
211 best_quality = 'high-widescreen' if widescreen else 'high'
213 for allowed_quality in ALLOWED_QUALITIES:
214 allowed_quality.qualities.append(best_quality)
216 # In order to minimize the number of calls to ViewClip API and reduce
217 # the probability of being throttled or banned by Pluralsight we will request
218 # only single format until formats listing was explicitly requested.
219 if self._downloader.params.get('listformats', False):
220 allowed_qualities = ALLOWED_QUALITIES
222 def guess_allowed_qualities():
223 req_format = self._downloader.params.get('format') or 'best'
224 req_format_split = req_format.split('-', 1)
225 if len(req_format_split) > 1:
226 req_ext, req_quality = req_format_split
227 for allowed_quality in ALLOWED_QUALITIES:
228 if req_ext == allowed_quality.ext and req_quality in allowed_quality.qualities:
229 return (AllowedQuality(req_ext, (req_quality, )), )
230 req_ext = 'webm' if self._downloader.params.get('prefer_free_formats') else 'mp4'
231 return (AllowedQuality(req_ext, (best_quality, )), )
232 allowed_qualities = guess_allowed_qualities()
235 for ext, qualities_ in allowed_qualities:
236 for quality in qualities_:
237 f = QUALITIES[quality].copy()
246 'q': '%dx%d' % (f['width'], f['height']),
248 format_id = '%s-%s' % (ext, quality)
249 clip_url = self._download_webpage(
250 '%s/training/Player/ViewClip' % self._API_BASE, display_id,
251 'Downloading %s URL' % format_id, fatal=False,
252 data=json.dumps(clip_post).encode('utf-8'),
253 headers={'Content-Type': 'application/json;charset=utf-8'})
255 # Pluralsight tracks multiple sequential calls to ViewClip API and start
256 # to return 429 HTTP errors after some time (see
257 # https://github.com/rg3/youtube-dl/pull/6989). Moreover it may even lead
258 # to account ban (see https://github.com/rg3/youtube-dl/issues/6842).
259 # To somewhat reduce the probability of these consequences
260 # we will sleep random amount of time before each call to ViewClip.
262 random.randint(2, 5), display_id,
263 '%(video_id)s: Waiting for %(timeout)s seconds to avoid throttling')
270 'format_id': format_id,
271 'quality': quality_key(quality),
274 self._sort_formats(formats)
276 duration = int_or_none(
277 clip.get('duration')) or parse_duration(clip.get('formattedDuration'))
279 # TODO: other languages?
280 subtitles = self.extract_subtitles(
281 author, clip_id, 'en', name, duration, display_id)
284 'id': clip.get('clipName') or clip['name'],
286 'duration': duration,
289 'subtitles': subtitles,
293 class PluralsightCourseIE(PluralsightBaseIE):
294 IE_NAME = 'pluralsight:course'
295 _VALID_URL = r'https?://(?:(?:www|app)\.)?pluralsight\.com/(?:library/)?courses/(?P<id>[^/]+)'
297 # Free course from Pluralsight Starter Subscription for Microsoft TechNet
298 # https://offers.pluralsight.com/technet?loc=zTS3z&prod=zOTprodz&tech=zOttechz&prog=zOTprogz&type=zSOz&media=zOTmediaz&country=zUSz
299 'url': 'http://www.pluralsight.com/courses/hosting-sql-server-windows-azure-iaas',
301 'id': 'hosting-sql-server-windows-azure-iaas',
302 'title': 'Hosting SQL Server in Microsoft Azure IaaS Fundamentals',
303 'description': 'md5:61b37e60f21c4b2f91dc621a977d0986',
305 'playlist_count': 31,
307 # available without pluralsight account
308 'url': 'https://www.pluralsight.com/courses/angularjs-get-started',
309 'only_matching': True,
311 'url': 'https://app.pluralsight.com/library/courses/understanding-microsoft-azure-amazon-aws/table-of-contents',
312 'only_matching': True,
315 def _real_extract(self, url):
316 course_id = self._match_id(url)
320 course = self._download_json(
321 '%s/data/course/%s' % (self._API_BASE, course_id),
322 course_id, 'Downloading course JSON')
324 title = course['title']
325 description = course.get('description') or course.get('shortDescription')
327 course_data = self._download_json(
328 '%s/data/course/content/%s' % (self._API_BASE, course_id),
329 course_id, 'Downloading course data JSON')
332 for num, module in enumerate(course_data, 1):
333 for clip in module.get('clips', []):
334 player_parameters = clip.get('playerParameters')
335 if not player_parameters:
338 '_type': 'url_transparent',
339 'url': '%s/training/player?%s' % (self._API_BASE, player_parameters),
340 'ie_key': PluralsightIE.ie_key(),
341 'chapter': module.get('title'),
342 'chapter_number': num,
343 'chapter_id': module.get('moduleRef'),
346 return self.playlist_result(entries, course_id, title, description)