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483fc223 S |
1 | from __future__ import unicode_literals |
2 | ||
483fc223 | 3 | import json |
38eb2968 | 4 | import random |
4c57b485 | 5 | import collections |
483fc223 S |
6 | |
7 | from .common import InfoExtractor | |
8 | from ..compat import ( | |
9 | compat_str, | |
10 | compat_urllib_parse, | |
11 | compat_urllib_request, | |
12 | compat_urlparse, | |
13 | ) | |
14 | from ..utils import ( | |
15 | ExtractorError, | |
16 | int_or_none, | |
17 | parse_duration, | |
18 | ) | |
19 | ||
20 | ||
563772ed S |
21 | class PluralsightBaseIE(InfoExtractor): |
22 | _API_BASE = 'http://app.pluralsight.com' | |
23 | ||
24 | ||
25 | class PluralsightIE(PluralsightBaseIE): | |
483fc223 | 26 | IE_NAME = 'pluralsight' |
71bd93b8 | 27 | _VALID_URL = r'https?://(?:(?:www|app)\.)?pluralsight\.com/training/player\?' |
c3a227d1 | 28 | _LOGIN_URL = 'https://app.pluralsight.com/id/' |
563772ed | 29 | |
483fc223 S |
30 | _NETRC_MACHINE = 'pluralsight' |
31 | ||
71bd93b8 | 32 | _TESTS = [{ |
483fc223 S |
33 | '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', |
34 | 'md5': '4d458cf5cf4c593788672419a8dd4cf8', | |
35 | 'info_dict': { | |
36 | 'id': 'hosting-sql-server-windows-azure-iaas-m7-mgmt-04', | |
37 | 'ext': 'mp4', | |
38 | 'title': 'Management of SQL Server - Demo Monitoring', | |
39 | 'duration': 338, | |
40 | }, | |
41 | 'skip': 'Requires pluralsight account credentials', | |
71bd93b8 S |
42 | }, { |
43 | 'url': 'https://app.pluralsight.com/training/player?course=angularjs-get-started&author=scott-allen&name=angularjs-get-started-m1-introduction&clip=0&mode=live', | |
44 | 'only_matching': True, | |
c23e2664 S |
45 | }, { |
46 | # available without pluralsight account | |
47 | 'url': 'http://app.pluralsight.com/training/player?author=scott-allen&name=angularjs-get-started-m1-introduction&mode=live&clip=0&course=angularjs-get-started', | |
48 | 'only_matching': True, | |
71bd93b8 | 49 | }] |
483fc223 S |
50 | |
51 | def _real_initialize(self): | |
52 | self._login() | |
53 | ||
54 | def _login(self): | |
55 | (username, password) = self._get_login_info() | |
56 | if username is None: | |
c23e2664 | 57 | return |
483fc223 S |
58 | |
59 | login_page = self._download_webpage( | |
60 | self._LOGIN_URL, None, 'Downloading login page') | |
61 | ||
62 | login_form = self._hidden_inputs(login_page) | |
63 | ||
64 | login_form.update({ | |
65 | 'Username': username.encode('utf-8'), | |
66 | 'Password': password.encode('utf-8'), | |
67 | }) | |
68 | ||
69 | post_url = self._search_regex( | |
70 | r'<form[^>]+action=(["\'])(?P<url>.+?)\1', login_page, | |
71 | 'post url', default=self._LOGIN_URL, group='url') | |
72 | ||
73 | if not post_url.startswith('http'): | |
74 | post_url = compat_urlparse.urljoin(self._LOGIN_URL, post_url) | |
75 | ||
76 | request = compat_urllib_request.Request( | |
77 | post_url, compat_urllib_parse.urlencode(login_form).encode('utf-8')) | |
78 | request.add_header('Content-Type', 'application/x-www-form-urlencoded') | |
79 | ||
80 | response = self._download_webpage( | |
81 | request, None, 'Logging in as %s' % username) | |
82 | ||
83 | error = self._search_regex( | |
84 | r'<span[^>]+class="field-validation-error"[^>]*>([^<]+)</span>', | |
85 | response, 'error message', default=None) | |
86 | if error: | |
87 | raise ExtractorError('Unable to login: %s' % error, expected=True) | |
88 | ||
7e508ff2 S |
89 | if all(p not in response for p in ('__INITIAL_STATE__', '"currentUser"')): |
90 | raise ExtractorError('Unable to log in') | |
91 | ||
483fc223 | 92 | def _real_extract(self, url): |
71bd93b8 S |
93 | qs = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query) |
94 | ||
95 | author = qs.get('author', [None])[0] | |
96 | name = qs.get('name', [None])[0] | |
97 | clip_id = qs.get('clip', [None])[0] | |
98 | course = qs.get('course', [None])[0] | |
99 | ||
100 | if any(not f for f in (author, name, clip_id, course,)): | |
101 | raise ExtractorError('Invalid URL', expected=True) | |
483fc223 S |
102 | |
103 | display_id = '%s-%s' % (name, clip_id) | |
104 | ||
105 | webpage = self._download_webpage(url, display_id) | |
106 | ||
107 | collection = self._parse_json( | |
108 | self._search_regex( | |
109 | r'moduleCollection\s*:\s*new\s+ModuleCollection\((\[.+?\])\s*,\s*\$rootScope\)', | |
110 | webpage, 'modules'), | |
111 | display_id) | |
112 | ||
113 | module, clip = None, None | |
114 | ||
115 | for module_ in collection: | |
116 | if module_.get('moduleName') == name: | |
117 | module = module_ | |
118 | for clip_ in module_.get('clips', []): | |
119 | clip_index = clip_.get('clipIndex') | |
120 | if clip_index is None: | |
121 | continue | |
122 | if compat_str(clip_index) == clip_id: | |
123 | clip = clip_ | |
124 | break | |
125 | ||
126 | if not clip: | |
127 | raise ExtractorError('Unable to resolve clip') | |
128 | ||
129 | QUALITIES = { | |
130 | 'low': {'width': 640, 'height': 480}, | |
131 | 'medium': {'width': 848, 'height': 640}, | |
132 | 'high': {'width': 1024, 'height': 768}, | |
133 | } | |
134 | ||
4c57b485 S |
135 | AllowedQuality = collections.namedtuple('AllowedQuality', ['ext', 'qualities']) |
136 | ||
483fc223 | 137 | ALLOWED_QUALITIES = ( |
4c57b485 S |
138 | AllowedQuality('webm', ('high',)), |
139 | AllowedQuality('mp4', ('low', 'medium', 'high',)), | |
483fc223 S |
140 | ) |
141 | ||
cf186b77 S |
142 | # In order to minimize the number of calls to ViewClip API and reduce |
143 | # the probability of being throttled or banned by Pluralsight we will request | |
144 | # only single format until explicit listformats was requested. | |
4c57b485 S |
145 | if self._downloader.params.get('listformats', False): |
146 | allowed_qualities = ALLOWED_QUALITIES | |
147 | else: | |
148 | def guess_allowed_qualities(): | |
149 | req_format = self._downloader.params.get('format') or 'best' | |
150 | req_format_split = req_format.split('-') | |
151 | if len(req_format_split) > 1: | |
152 | req_ext, req_quality = req_format_split | |
153 | for allowed_quality in ALLOWED_QUALITIES: | |
154 | if req_ext == allowed_quality.ext and req_quality in allowed_quality.qualities: | |
155 | return (AllowedQuality(req_ext, (req_quality, )), ) | |
156 | req_ext = 'webm' if self._downloader.params.get('prefer_free_formats') else 'mp4' | |
157 | return (AllowedQuality(req_ext, ('high', )), ) | |
158 | allowed_qualities = guess_allowed_qualities() | |
159 | ||
483fc223 | 160 | formats = [] |
4c57b485 | 161 | for ext, qualities in allowed_qualities: |
483fc223 S |
162 | for quality in qualities: |
163 | f = QUALITIES[quality].copy() | |
164 | clip_post = { | |
165 | 'a': author, | |
166 | 'cap': 'false', | |
167 | 'cn': clip_id, | |
168 | 'course': course, | |
169 | 'lc': 'en', | |
170 | 'm': name, | |
171 | 'mt': ext, | |
172 | 'q': '%dx%d' % (f['width'], f['height']), | |
173 | } | |
174 | request = compat_urllib_request.Request( | |
0533915a | 175 | '%s/training/Player/ViewClip' % self._API_BASE, |
483fc223 S |
176 | json.dumps(clip_post).encode('utf-8')) |
177 | request.add_header('Content-Type', 'application/json;charset=utf-8') | |
178 | format_id = '%s-%s' % (ext, quality) | |
179 | clip_url = self._download_webpage( | |
180 | request, display_id, 'Downloading %s URL' % format_id, fatal=False) | |
38eb2968 S |
181 | |
182 | # Pluralsight tracks multiple sequential calls to ViewClip API and start | |
183 | # to return 429 HTTP errors after some time (see | |
184 | # https://github.com/rg3/youtube-dl/pull/6989). Moreover it may even lead | |
185 | # to account ban (see https://github.com/rg3/youtube-dl/issues/6842). | |
186 | # To somewhat reduce the probability of these consequences | |
187 | # we will sleep random amount of time before each call to ViewClip. | |
188 | self._sleep( | |
189 | random.randint(2, 5), display_id, | |
190 | '%(video_id)s: Waiting for %(timeout)s seconds to avoid throttling') | |
191 | ||
483fc223 S |
192 | if not clip_url: |
193 | continue | |
194 | f.update({ | |
195 | 'url': clip_url, | |
196 | 'ext': ext, | |
197 | 'format_id': format_id, | |
198 | }) | |
199 | formats.append(f) | |
200 | self._sort_formats(formats) | |
201 | ||
202 | # TODO: captions | |
203 | # http://www.pluralsight.com/training/Player/ViewClip + cap = true | |
204 | # or | |
205 | # http://www.pluralsight.com/training/Player/Captions | |
206 | # { a = author, cn = clip_id, lc = end, m = name } | |
207 | ||
208 | return { | |
209 | 'id': clip['clipName'], | |
210 | 'title': '%s - %s' % (module['title'], clip['title']), | |
211 | 'duration': int_or_none(clip.get('duration')) or parse_duration(clip.get('formattedDuration')), | |
212 | 'creator': author, | |
213 | 'formats': formats | |
214 | } | |
215 | ||
216 | ||
563772ed | 217 | class PluralsightCourseIE(PluralsightBaseIE): |
483fc223 | 218 | IE_NAME = 'pluralsight:course' |
a5cd0eb8 | 219 | _VALID_URL = r'https?://(?:(?:www|app)\.)?pluralsight\.com/(?:library/)?courses/(?P<id>[^/]+)' |
c23e2664 | 220 | _TESTS = [{ |
483fc223 S |
221 | # Free course from Pluralsight Starter Subscription for Microsoft TechNet |
222 | # https://offers.pluralsight.com/technet?loc=zTS3z&prod=zOTprodz&tech=zOttechz&prog=zOTprogz&type=zSOz&media=zOTmediaz&country=zUSz | |
223 | 'url': 'http://www.pluralsight.com/courses/hosting-sql-server-windows-azure-iaas', | |
224 | 'info_dict': { | |
225 | 'id': 'hosting-sql-server-windows-azure-iaas', | |
226 | 'title': 'Hosting SQL Server in Microsoft Azure IaaS Fundamentals', | |
227 | 'description': 'md5:61b37e60f21c4b2f91dc621a977d0986', | |
228 | }, | |
229 | 'playlist_count': 31, | |
c23e2664 S |
230 | }, { |
231 | # available without pluralsight account | |
232 | 'url': 'https://www.pluralsight.com/courses/angularjs-get-started', | |
233 | 'only_matching': True, | |
a5cd0eb8 S |
234 | }, { |
235 | 'url': 'https://app.pluralsight.com/library/courses/understanding-microsoft-azure-amazon-aws/table-of-contents', | |
236 | 'only_matching': True, | |
c23e2664 | 237 | }] |
483fc223 S |
238 | |
239 | def _real_extract(self, url): | |
240 | course_id = self._match_id(url) | |
241 | ||
2b6bda1e S |
242 | # TODO: PSM cookie |
243 | ||
483fc223 | 244 | course = self._download_json( |
0533915a | 245 | '%s/data/course/%s' % (self._API_BASE, course_id), |
483fc223 S |
246 | course_id, 'Downloading course JSON') |
247 | ||
248 | title = course['title'] | |
249 | description = course.get('description') or course.get('shortDescription') | |
250 | ||
251 | course_data = self._download_json( | |
0533915a | 252 | '%s/data/course/content/%s' % (self._API_BASE, course_id), |
483fc223 S |
253 | course_id, 'Downloading course data JSON') |
254 | ||
483fc223 S |
255 | entries = [] |
256 | for module in course_data: | |
257 | for clip in module.get('clips', []): | |
483fc223 S |
258 | player_parameters = clip.get('playerParameters') |
259 | if not player_parameters: | |
260 | continue | |
261 | entries.append(self.url_result( | |
0533915a | 262 | '%s/training/player?%s' % (self._API_BASE, player_parameters), |
483fc223 S |
263 | 'Pluralsight')) |
264 | ||
483fc223 | 265 | return self.playlist_result(entries, course_id, title, description) |