New upstream version 2019.09.28

[youtubedl] / youtube_dl / extractor / pluralsight.py

diff --git a/youtube_dl/extractor/pluralsight.py b/youtube_dl/extractor/pluralsight.py
index aa7dbcb63ad50b196cd15b2d0c44772ae3d5149e..abd08bc285c3c107bd548ddf0ec1c86fe77ecd9a 100644 (file)
--- a/youtube_dl/extractor/pluralsight.py
+++ b/youtube_dl/extractor/pluralsight.py
@@ -1,30 +1,118 @@
 from __future__ import unicode_literals
 
 from __future__ import unicode_literals
 

+import collections

 import json
 import json

+import os

 import random
 import random

-import collections
+import re

 
 from .common import InfoExtractor
 from ..compat import (
     compat_str,
 
 from .common import InfoExtractor
 from ..compat import (
     compat_str,

-    compat_urllib_parse,

     compat_urlparse,
 )
 from ..utils import (
     compat_urlparse,
 )
 from ..utils import (

+    dict_get,

     ExtractorError,
     ExtractorError,

+    float_or_none,

     int_or_none,
     parse_duration,
     int_or_none,
     parse_duration,

-    sanitized_Request,
+    qualities,
+    srt_subtitles_timecode,
+    try_get,
+    update_url_query,
+    urlencode_postdata,

 )
 
 
 class PluralsightBaseIE(InfoExtractor):
 )
 
 
 class PluralsightBaseIE(InfoExtractor):

-    _API_BASE = 'http://app.pluralsight.com'
+    _API_BASE = 'https://app.pluralsight.com'
+
+    _GRAPHQL_EP = '%s/player/api/graphql' % _API_BASE
+    _GRAPHQL_HEADERS = {
+        'Content-Type': 'application/json;charset=UTF-8',
+    }
+    _GRAPHQL_COURSE_TMPL = '''
+query BootstrapPlayer {
+  rpc {
+    bootstrapPlayer {
+      profile {
+        firstName
+        lastName
+        email
+        username
+        userHandle
+        authed
+        isAuthed
+        plan
+      }
+      course(courseId: "%s") {
+        name
+        title
+        courseHasCaptions
+        translationLanguages {
+          code
+          name
+        }
+        supportsWideScreenVideoFormats
+        timestamp
+        modules {
+          name
+          title
+          duration
+          formattedDuration
+          author
+          authorized
+          clips {
+            authorized
+            clipId
+            duration
+            formattedDuration
+            id
+            index
+            moduleIndex
+            moduleTitle
+            name
+            title
+            watched
+          }
+        }
+      }
+    }
+  }
+}'''
+
+    def _download_course(self, course_id, url, display_id):
+        try:
+            return self._download_course_rpc(course_id, url, display_id)
+        except ExtractorError:
+            # Old API fallback
+            return self._download_json(
+                'https://app.pluralsight.com/player/user/api/v1/player/payload',
+                display_id, data=urlencode_postdata({'courseId': course_id}),
+                headers={'Referer': url})
+
+    def _download_course_rpc(self, course_id, url, display_id):
+        response = self._download_json(
+            self._GRAPHQL_EP, display_id, data=json.dumps({
+                'query': self._GRAPHQL_COURSE_TMPL % course_id,
+                'variables': {}
+            }).encode('utf-8'), headers=self._GRAPHQL_HEADERS)
+
+        course = try_get(
+            response, lambda x: x['data']['rpc']['bootstrapPlayer']['course'],
+            dict)
+        if course:
+            return course
+
+        raise ExtractorError(
+            '%s said: %s' % (self.IE_NAME, response['error']['message']),
+            expected=True)

 
 
 class PluralsightIE(PluralsightBaseIE):
     IE_NAME = 'pluralsight'
 
 
 class PluralsightIE(PluralsightBaseIE):
     IE_NAME = 'pluralsight'

-    _VALID_URL = r'https?://(?:(?:www|app)\.)?pluralsight\.com/training/player\?'
+    _VALID_URL = r'https?://(?:(?:www|app)\.)?pluralsight\.com/(?:training/)?player\?'

     _LOGIN_URL = 'https://app.pluralsight.com/id/'
 
     _NETRC_MACHINE = 'pluralsight'
     _LOGIN_URL = 'https://app.pluralsight.com/id/'
 
     _NETRC_MACHINE = 'pluralsight'


@@ -35,7 +123,7 @@ class PluralsightIE(PluralsightBaseIE):
         'info_dict': {
             'id': 'hosting-sql-server-windows-azure-iaas-m7-mgmt-04',
             'ext': 'mp4',
         'info_dict': {
             'id': 'hosting-sql-server-windows-azure-iaas-m7-mgmt-04',
             'ext': 'mp4',

-            'title': 'Management of SQL Server - Demo Monitoring',
+            'title': 'Demo Monitoring',

             'duration': 338,
         },
         'skip': 'Requires pluralsight account credentials',
             'duration': 338,
         },
         'skip': 'Requires pluralsight account credentials',


@@ -46,13 +134,38 @@ class PluralsightIE(PluralsightBaseIE):
         # available without pluralsight account
         'url': 'http://app.pluralsight.com/training/player?author=scott-allen&name=angularjs-get-started-m1-introduction&mode=live&clip=0&course=angularjs-get-started',
         'only_matching': True,
         # available without pluralsight account
         'url': 'http://app.pluralsight.com/training/player?author=scott-allen&name=angularjs-get-started-m1-introduction&mode=live&clip=0&course=angularjs-get-started',
         'only_matching': True,

+    }, {
+        'url': 'https://app.pluralsight.com/player?course=ccna-intro-networking&author=ross-bagurdes&name=ccna-intro-networking-m06&clip=0',
+        'only_matching': True,

     }]
 
     }]
 

+    GRAPHQL_VIEWCLIP_TMPL = '''
+query viewClip {
+  viewClip(input: {
+    author: "%(author)s",
+    clipIndex: %(clipIndex)d,
+    courseName: "%(courseName)s",
+    includeCaptions: %(includeCaptions)s,
+    locale: "%(locale)s",
+    mediaType: "%(mediaType)s",
+    moduleName: "%(moduleName)s",
+    quality: "%(quality)s"
+  }) {
+    urls {
+      url
+      cdn
+      rank
+      source
+    },
+    status
+  }
+}'''
+

     def _real_initialize(self):
         self._login()
 
     def _login(self):
     def _real_initialize(self):
         self._login()
 
     def _login(self):

-        (username, password) = self._get_login_info()
+        username, password = self._get_login_info()

         if username is None:
             return
 
         if username is None:
             return
 


@@ -62,8 +175,8 @@ class PluralsightIE(PluralsightBaseIE):
         login_form = self._hidden_inputs(login_page)
 
         login_form.update({
         login_form = self._hidden_inputs(login_page)
 
         login_form.update({

-            'Username': username.encode('utf-8'),
-            'Password': password.encode('utf-8'),
+            'Username': username,
+            'Password': password,

         })
 
         post_url = self._search_regex(
         })
 
         post_url = self._search_regex(


@@ -73,12 +186,10 @@ class PluralsightIE(PluralsightBaseIE):
         if not post_url.startswith('http'):
             post_url = compat_urlparse.urljoin(self._LOGIN_URL, post_url)
 
         if not post_url.startswith('http'):
             post_url = compat_urlparse.urljoin(self._LOGIN_URL, post_url)
 

-        request = sanitized_Request(
-            post_url, compat_urllib_parse.urlencode(login_form).encode('utf-8'))
-        request.add_header('Content-Type', 'application/x-www-form-urlencoded')
-

         response = self._download_webpage(
         response = self._download_webpage(

-            request, None, 'Logging in as %s' % username)
+            post_url, None, 'Logging in',
+            data=urlencode_postdata(login_form),
+            headers={'Content-Type': 'application/x-www-form-urlencoded'})

 
         error = self._search_regex(
             r'<span[^>]+class="field-validation-error"[^>]*>([^<]+)</span>',
 
         error = self._search_regex(
             r'<span[^>]+class="field-validation-error"[^>]*>([^<]+)</span>',


@@ -86,69 +197,143 @@ class PluralsightIE(PluralsightBaseIE):
         if error:
             raise ExtractorError('Unable to login: %s' % error, expected=True)
 
         if error:
             raise ExtractorError('Unable to login: %s' % error, expected=True)
 

-        if all(p not in response for p in ('__INITIAL_STATE__', '"currentUser"')):
+        if all(not re.search(p, response) for p in (
+                r'__INITIAL_STATE__', r'["\']currentUser["\']',
+                # new layout?
+                r'>\s*Sign out\s*<')):
+            BLOCKED = 'Your account has been blocked due to suspicious activity'
+            if BLOCKED in response:
+                raise ExtractorError(
+                    'Unable to login: %s' % BLOCKED, expected=True)
+            MUST_AGREE = 'To continue using Pluralsight, you must agree to'
+            if any(p in response for p in (MUST_AGREE, '>Disagree<', '>Agree<')):
+                raise ExtractorError(
+                    'Unable to login: %s some documents. Go to pluralsight.com, '
+                    'log in and agree with what Pluralsight requires.'
+                    % MUST_AGREE, expected=True)
+

             raise ExtractorError('Unable to log in')
 
             raise ExtractorError('Unable to log in')
 

+    def _get_subtitles(self, author, clip_idx, clip_id, lang, name, duration, video_id):
+        captions = None
+        if clip_id:
+            captions = self._download_json(
+                '%s/transcript/api/v1/caption/json/%s/%s'
+                % (self._API_BASE, clip_id, lang), video_id,
+                'Downloading captions JSON', 'Unable to download captions JSON',
+                fatal=False)
+        if not captions:
+            captions_post = {
+                'a': author,
+                'cn': int(clip_idx),
+                'lc': lang,
+                'm': name,
+            }
+            captions = self._download_json(
+                '%s/player/retrieve-captions' % self._API_BASE, video_id,
+                'Downloading captions JSON', 'Unable to download captions JSON',
+                fatal=False, data=json.dumps(captions_post).encode('utf-8'),
+                headers={'Content-Type': 'application/json;charset=utf-8'})
+        if captions:
+            return {
+                lang: [{
+                    'ext': 'json',
+                    'data': json.dumps(captions),
+                }, {
+                    'ext': 'srt',
+                    'data': self._convert_subtitles(duration, captions),
+                }]
+            }
+
+    @staticmethod
+    def _convert_subtitles(duration, subs):
+        srt = ''
+        TIME_OFFSET_KEYS = ('displayTimeOffset', 'DisplayTimeOffset')
+        TEXT_KEYS = ('text', 'Text')
+        for num, current in enumerate(subs):
+            current = subs[num]
+            start, text = (
+                float_or_none(dict_get(current, TIME_OFFSET_KEYS, skip_false_values=False)),
+                dict_get(current, TEXT_KEYS))
+            if start is None or text is None:
+                continue
+            end = duration if num == len(subs) - 1 else float_or_none(
+                dict_get(subs[num + 1], TIME_OFFSET_KEYS, skip_false_values=False))
+            if end is None:
+                continue
+            srt += os.linesep.join(
+                (
+                    '%d' % num,
+                    '%s --> %s' % (
+                        srt_subtitles_timecode(start),
+                        srt_subtitles_timecode(end)),
+                    text,
+                    os.linesep,
+                ))
+        return srt
+

     def _real_extract(self, url):
         qs = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
 
         author = qs.get('author', [None])[0]
         name = qs.get('name', [None])[0]
     def _real_extract(self, url):
         qs = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
 
         author = qs.get('author', [None])[0]
         name = qs.get('name', [None])[0]

-        clip_id = qs.get('clip', [None])[0]
-        course = qs.get('course', [None])[0]
+        clip_idx = qs.get('clip', [None])[0]
+        course_name = qs.get('course', [None])[0]

 
 

-        if any(not f for f in (author, name, clip_id, course,)):
+        if any(not f for f in (author, name, clip_idx, course_name,)):

             raise ExtractorError('Invalid URL', expected=True)
 
             raise ExtractorError('Invalid URL', expected=True)
 

-        display_id = '%s-%s' % (name, clip_id)
+        display_id = '%s-%s' % (name, clip_idx)

 
 

-        webpage = self._download_webpage(url, display_id)
+        course = self._download_course(course_name, url, display_id)

 
 

-        modules = self._search_regex(
-            r'moduleCollection\s*:\s*new\s+ModuleCollection\((\[.+?\])\s*,\s*\$rootScope\)',
-            webpage, 'modules', default=None)
+        collection = course['modules']

 
 

-        if modules:
-            collection = self._parse_json(modules, display_id)
-        else:
-            # Webpage may be served in different layout (see
-            # https://github.com/rg3/youtube-dl/issues/7607)
-            collection = self._parse_json(
-                self._search_regex(
-                    r'var\s+initialState\s*=\s*({.+?});\n', webpage, 'initial state'),
-                display_id)['course']['modules']
-
-        module, clip = None, None
+        clip = None

 
         for module_ in collection:
             if name in (module_.get('moduleName'), module_.get('name')):
 
         for module_ in collection:
             if name in (module_.get('moduleName'), module_.get('name')):

-                module = module_

                 for clip_ in module_.get('clips', []):
                     clip_index = clip_.get('clipIndex')
                     if clip_index is None:
                         clip_index = clip_.get('index')
                     if clip_index is None:
                         continue
                 for clip_ in module_.get('clips', []):
                     clip_index = clip_.get('clipIndex')
                     if clip_index is None:
                         clip_index = clip_.get('index')
                     if clip_index is None:
                         continue

-                    if compat_str(clip_index) == clip_id:
+                    if compat_str(clip_index) == clip_idx:

                         clip = clip_
                         break
 
         if not clip:
             raise ExtractorError('Unable to resolve clip')
 
                         clip = clip_
                         break
 
         if not clip:
             raise ExtractorError('Unable to resolve clip')
 

+        title = clip['title']
+        clip_id = clip.get('clipName') or clip.get('name') or clip['clipId']
+

         QUALITIES = {
             'low': {'width': 640, 'height': 480},
             'medium': {'width': 848, 'height': 640},
             'high': {'width': 1024, 'height': 768},
         QUALITIES = {
             'low': {'width': 640, 'height': 480},
             'medium': {'width': 848, 'height': 640},
             'high': {'width': 1024, 'height': 768},

+            'high-widescreen': {'width': 1280, 'height': 720},

         }
 
         }
 

+        QUALITIES_PREFERENCE = ('low', 'medium', 'high', 'high-widescreen',)
+        quality_key = qualities(QUALITIES_PREFERENCE)
+

         AllowedQuality = collections.namedtuple('AllowedQuality', ['ext', 'qualities'])
 
         ALLOWED_QUALITIES = (
         AllowedQuality = collections.namedtuple('AllowedQuality', ['ext', 'qualities'])
 
         ALLOWED_QUALITIES = (

-            AllowedQuality('webm', ('high',)),
-            AllowedQuality('mp4', ('low', 'medium', 'high',)),
+            AllowedQuality('webm', ['high', ]),
+            AllowedQuality('mp4', ['low', 'medium', 'high', ]),

         )
 
         )
 

+        # Some courses also offer widescreen resolution for high quality (see
+        # https://github.com/ytdl-org/youtube-dl/issues/7766)
+        widescreen = course.get('supportsWideScreenVideoFormats') is True
+        best_quality = 'high-widescreen' if widescreen else 'high'
+        if widescreen:
+            for allowed_quality in ALLOWED_QUALITIES:
+                allowed_quality.qualities.append(best_quality)
+

         # In order to minimize the number of calls to ViewClip API and reduce
         # the probability of being throttled or banned by Pluralsight we will request
         # only single format until formats listing was explicitly requested.
         # In order to minimize the number of calls to ViewClip API and reduce
         # the probability of being throttled or banned by Pluralsight we will request
         # only single format until formats listing was explicitly requested.


@@ -157,70 +342,98 @@ class PluralsightIE(PluralsightBaseIE):
         else:
             def guess_allowed_qualities():
                 req_format = self._downloader.params.get('format') or 'best'
         else:
             def guess_allowed_qualities():
                 req_format = self._downloader.params.get('format') or 'best'

-                req_format_split = req_format.split('-')
+                req_format_split = req_format.split('-', 1)

                 if len(req_format_split) > 1:
                     req_ext, req_quality = req_format_split
                 if len(req_format_split) > 1:
                     req_ext, req_quality = req_format_split

+                    req_quality = '-'.join(req_quality.split('-')[:2])

                     for allowed_quality in ALLOWED_QUALITIES:
                         if req_ext == allowed_quality.ext and req_quality in allowed_quality.qualities:
                             return (AllowedQuality(req_ext, (req_quality, )), )
                 req_ext = 'webm' if self._downloader.params.get('prefer_free_formats') else 'mp4'
                     for allowed_quality in ALLOWED_QUALITIES:
                         if req_ext == allowed_quality.ext and req_quality in allowed_quality.qualities:
                             return (AllowedQuality(req_ext, (req_quality, )), )
                 req_ext = 'webm' if self._downloader.params.get('prefer_free_formats') else 'mp4'

-                return (AllowedQuality(req_ext, ('high', )), )
+                return (AllowedQuality(req_ext, (best_quality, )), )

             allowed_qualities = guess_allowed_qualities()
 
         formats = []
             allowed_qualities = guess_allowed_qualities()
 
         formats = []

-        for ext, qualities in allowed_qualities:
-            for quality in qualities:
+        for ext, qualities_ in allowed_qualities:
+            for quality in qualities_:

                 f = QUALITIES[quality].copy()
                 clip_post = {
                 f = QUALITIES[quality].copy()
                 clip_post = {

-                    'a': author,
-                    'cap': 'false',
-                    'cn': clip_id,
-                    'course': course,
-                    'lc': 'en',
-                    'm': name,
-                    'mt': ext,
-                    'q': '%dx%d' % (f['width'], f['height']),
+                    'author': author,
+                    'includeCaptions': 'false',
+                    'clipIndex': int(clip_idx),
+                    'courseName': course_name,
+                    'locale': 'en',
+                    'moduleName': name,
+                    'mediaType': ext,
+                    'quality': '%dx%d' % (f['width'], f['height']),

                 }
                 }

-                request = sanitized_Request(
-                    '%s/training/Player/ViewClip' % self._API_BASE,
-                    json.dumps(clip_post).encode('utf-8'))
-                request.add_header('Content-Type', 'application/json;charset=utf-8')

                 format_id = '%s-%s' % (ext, quality)
                 format_id = '%s-%s' % (ext, quality)

-                clip_url = self._download_webpage(
-                    request, display_id, 'Downloading %s URL' % format_id, fatal=False)
+
+                try:
+                    viewclip = self._download_json(
+                        self._GRAPHQL_EP, display_id,
+                        'Downloading %s viewclip graphql' % format_id,
+                        data=json.dumps({
+                            'query': self.GRAPHQL_VIEWCLIP_TMPL % clip_post,
+                            'variables': {}
+                        }).encode('utf-8'),
+                        headers=self._GRAPHQL_HEADERS)['data']['viewClip']
+                except ExtractorError:
+                    # Still works but most likely will go soon
+                    viewclip = self._download_json(
+                        '%s/video/clips/viewclip' % self._API_BASE, display_id,
+                        'Downloading %s viewclip JSON' % format_id, fatal=False,
+                        data=json.dumps(clip_post).encode('utf-8'),
+                        headers={'Content-Type': 'application/json;charset=utf-8'})

 
                 # Pluralsight tracks multiple sequential calls to ViewClip API and start
                 # to return 429 HTTP errors after some time (see
 
                 # Pluralsight tracks multiple sequential calls to ViewClip API and start
                 # to return 429 HTTP errors after some time (see

-                # https://github.com/rg3/youtube-dl/pull/6989). Moreover it may even lead
-                # to account ban (see https://github.com/rg3/youtube-dl/issues/6842).
+                # https://github.com/ytdl-org/youtube-dl/pull/6989). Moreover it may even lead
+                # to account ban (see https://github.com/ytdl-org/youtube-dl/issues/6842).

                 # To somewhat reduce the probability of these consequences
                 # we will sleep random amount of time before each call to ViewClip.
                 self._sleep(
                     random.randint(2, 5), display_id,
                     '%(video_id)s: Waiting for %(timeout)s seconds to avoid throttling')
 
                 # To somewhat reduce the probability of these consequences
                 # we will sleep random amount of time before each call to ViewClip.
                 self._sleep(
                     random.randint(2, 5), display_id,
                     '%(video_id)s: Waiting for %(timeout)s seconds to avoid throttling')
 

-                if not clip_url:
+                if not viewclip:

                     continue
                     continue

-                f.update({
-                    'url': clip_url,
-                    'ext': ext,
-                    'format_id': format_id,
-                })
-                formats.append(f)
+
+                clip_urls = viewclip.get('urls')
+                if not isinstance(clip_urls, list):
+                    continue
+
+                for clip_url_data in clip_urls:
+                    clip_url = clip_url_data.get('url')
+                    if not clip_url:
+                        continue
+                    cdn = clip_url_data.get('cdn')
+                    clip_f = f.copy()
+                    clip_f.update({
+                        'url': clip_url,
+                        'ext': ext,
+                        'format_id': '%s-%s' % (format_id, cdn) if cdn else format_id,
+                        'quality': quality_key(quality),
+                        'source_preference': int_or_none(clip_url_data.get('rank')),
+                    })
+                    formats.append(clip_f)
+

         self._sort_formats(formats)
 
         self._sort_formats(formats)
 

-        # TODO: captions
-        # http://www.pluralsight.com/training/Player/ViewClip + cap = true
-        # or
-        # http://www.pluralsight.com/training/Player/Captions
-        # { a = author, cn = clip_id, lc = end, m = name }
+        duration = int_or_none(
+            clip.get('duration')) or parse_duration(clip.get('formattedDuration'))
+
+        # TODO: other languages?
+        subtitles = self.extract_subtitles(
+            author, clip_idx, clip.get('clipId'), 'en', name, duration, display_id)

 
         return {
 
         return {

-            'id': clip['clipName'],
-            'title': '%s - %s' % (module['title'], clip['title']),
-            'duration': int_or_none(clip.get('duration')) or parse_duration(clip.get('formattedDuration')),
+            'id': clip_id,
+            'title': title,
+            'duration': duration,

             'creator': author,
             'creator': author,

-            'formats': formats
+            'formats': formats,
+            'subtitles': subtitles,

         }
 
 
         }
 
 


@@ -251,25 +464,38 @@ class PluralsightCourseIE(PluralsightBaseIE):
 
         # TODO: PSM cookie
 
 
         # TODO: PSM cookie
 

-        course = self._download_json(
-            '%s/data/course/%s' % (self._API_BASE, course_id),
-            course_id, 'Downloading course JSON')
+        course = self._download_course(course_id, url, course_id)

 
         title = course['title']
 
         title = course['title']

+        course_name = course['name']
+        course_data = course['modules']

         description = course.get('description') or course.get('shortDescription')
 
         description = course.get('description') or course.get('shortDescription')
 

-        course_data = self._download_json(
-            '%s/data/course/content/%s' % (self._API_BASE, course_id),
-            course_id, 'Downloading course data JSON')
-

         entries = []
         entries = []

-        for module in course_data:
+        for num, module in enumerate(course_data, 1):
+            author = module.get('author')
+            module_name = module.get('name')
+            if not author or not module_name:
+                continue

             for clip in module.get('clips', []):
             for clip in module.get('clips', []):

-                player_parameters = clip.get('playerParameters')
-                if not player_parameters:
+                clip_index = int_or_none(clip.get('index'))
+                if clip_index is None:

                     continue
                     continue

-                entries.append(self.url_result(
-                    '%s/training/player?%s' % (self._API_BASE, player_parameters),
-                    'Pluralsight'))
+                clip_url = update_url_query(
+                    '%s/player' % self._API_BASE, query={
+                        'mode': 'live',
+                        'course': course_name,
+                        'author': author,
+                        'name': module_name,
+                        'clip': clip_index,
+                    })
+                entries.append({
+                    '_type': 'url_transparent',
+                    'url': clip_url,
+                    'ie_key': PluralsightIE.ie_key(),
+                    'chapter': module.get('title'),
+                    'chapter_number': num,
+                    'chapter_id': module.get('moduleRef'),
+                })

 
         return self.playlist_result(entries, course_id, title, description)
 
         return self.playlist_result(entries, course_id, title, description)