mirror of
https://github.com/l1ving/youtube-dl
synced 2024-11-26 04:32:52 +08:00
297 lines
12 KiB
Python
297 lines
12 KiB
Python
from __future__ import unicode_literals
|
|
|
|
import re
|
|
import json
|
|
import random
|
|
import collections
|
|
|
|
from .common import InfoExtractor
|
|
from ..compat import (
|
|
compat_str,
|
|
compat_urlparse,
|
|
)
|
|
from ..utils import (
|
|
ExtractorError,
|
|
int_or_none,
|
|
parse_duration,
|
|
qualities,
|
|
sanitized_Request,
|
|
urlencode_postdata,
|
|
)
|
|
|
|
|
|
class PluralsightBaseIE(InfoExtractor):
|
|
_API_BASE = 'http://app.pluralsight.com'
|
|
|
|
|
|
class PluralsightIE(PluralsightBaseIE):
|
|
IE_NAME = 'pluralsight'
|
|
_VALID_URL = r'https?://(?:(?:www|app)\.)?pluralsight\.com/training/player\?'
|
|
_LOGIN_URL = 'https://app.pluralsight.com/id/'
|
|
|
|
_NETRC_MACHINE = 'pluralsight'
|
|
|
|
_TESTS = [{
|
|
'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',
|
|
'md5': '4d458cf5cf4c593788672419a8dd4cf8',
|
|
'info_dict': {
|
|
'id': 'hosting-sql-server-windows-azure-iaas-m7-mgmt-04',
|
|
'ext': 'mp4',
|
|
'title': 'Management of SQL Server - Demo Monitoring',
|
|
'duration': 338,
|
|
},
|
|
'skip': 'Requires pluralsight account credentials',
|
|
}, {
|
|
'url': 'https://app.pluralsight.com/training/player?course=angularjs-get-started&author=scott-allen&name=angularjs-get-started-m1-introduction&clip=0&mode=live',
|
|
'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,
|
|
}]
|
|
|
|
def _real_initialize(self):
|
|
self._login()
|
|
|
|
def _login(self):
|
|
(username, password) = self._get_login_info()
|
|
if username is None:
|
|
return
|
|
|
|
login_page = self._download_webpage(
|
|
self._LOGIN_URL, None, 'Downloading login page')
|
|
|
|
login_form = self._hidden_inputs(login_page)
|
|
|
|
login_form.update({
|
|
'Username': username,
|
|
'Password': password,
|
|
})
|
|
|
|
post_url = self._search_regex(
|
|
r'<form[^>]+action=(["\'])(?P<url>.+?)\1', login_page,
|
|
'post url', default=self._LOGIN_URL, group='url')
|
|
|
|
if not post_url.startswith('http'):
|
|
post_url = compat_urlparse.urljoin(self._LOGIN_URL, post_url)
|
|
|
|
request = sanitized_Request(
|
|
post_url, urlencode_postdata(login_form))
|
|
request.add_header('Content-Type', 'application/x-www-form-urlencoded')
|
|
|
|
response = self._download_webpage(
|
|
request, None, 'Logging in as %s' % username)
|
|
|
|
error = self._search_regex(
|
|
r'<span[^>]+class="field-validation-error"[^>]*>([^<]+)</span>',
|
|
response, 'error message', default=None)
|
|
if error:
|
|
raise ExtractorError('Unable to login: %s' % error, expected=True)
|
|
|
|
if all(p not in response for p in ('__INITIAL_STATE__', '"currentUser"')):
|
|
raise ExtractorError('Unable to log in')
|
|
|
|
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]
|
|
|
|
if any(not f for f in (author, name, clip_id, course,)):
|
|
raise ExtractorError('Invalid URL', expected=True)
|
|
|
|
display_id = '%s-%s' % (name, clip_id)
|
|
|
|
webpage = self._download_webpage(url, display_id)
|
|
|
|
modules = self._search_regex(
|
|
r'moduleCollection\s*:\s*new\s+ModuleCollection\((\[.+?\])\s*,\s*\$rootScope\)',
|
|
webpage, 'modules', default=None)
|
|
|
|
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
|
|
|
|
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
|
|
if compat_str(clip_index) == clip_id:
|
|
clip = clip_
|
|
break
|
|
|
|
if not clip:
|
|
raise ExtractorError('Unable to resolve clip')
|
|
|
|
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('webm', ['high', ]),
|
|
AllowedQuality('mp4', ['low', 'medium', 'high', ]),
|
|
)
|
|
|
|
# Some courses also offer widescreen resolution for high quality (see
|
|
# https://github.com/rg3/youtube-dl/issues/7766)
|
|
widescreen = True if re.search(
|
|
r'courseSupportsWidescreenVideoFormats\s*:\s*true', webpage) else False
|
|
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.
|
|
if self._downloader.params.get('listformats', False):
|
|
allowed_qualities = ALLOWED_QUALITIES
|
|
else:
|
|
def guess_allowed_qualities():
|
|
req_format = self._downloader.params.get('format') or 'best'
|
|
req_format_split = req_format.split('-', 1)
|
|
if len(req_format_split) > 1:
|
|
req_ext, req_quality = req_format_split
|
|
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, (best_quality, )), )
|
|
allowed_qualities = guess_allowed_qualities()
|
|
|
|
formats = []
|
|
for ext, qualities_ in allowed_qualities:
|
|
for quality in qualities_:
|
|
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']),
|
|
}
|
|
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)
|
|
clip_url = self._download_webpage(
|
|
request, display_id, 'Downloading %s URL' % format_id, fatal=False)
|
|
|
|
# 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).
|
|
# 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:
|
|
continue
|
|
f.update({
|
|
'url': clip_url,
|
|
'ext': ext,
|
|
'format_id': format_id,
|
|
'quality': quality_key(quality),
|
|
})
|
|
formats.append(f)
|
|
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 }
|
|
|
|
return {
|
|
'id': clip.get('clipName') or clip['name'],
|
|
'title': '%s - %s' % (module['title'], clip['title']),
|
|
'duration': int_or_none(clip.get('duration')) or parse_duration(clip.get('formattedDuration')),
|
|
'creator': author,
|
|
'formats': formats
|
|
}
|
|
|
|
|
|
class PluralsightCourseIE(PluralsightBaseIE):
|
|
IE_NAME = 'pluralsight:course'
|
|
_VALID_URL = r'https?://(?:(?:www|app)\.)?pluralsight\.com/(?:library/)?courses/(?P<id>[^/]+)'
|
|
_TESTS = [{
|
|
# Free course from Pluralsight Starter Subscription for Microsoft TechNet
|
|
# https://offers.pluralsight.com/technet?loc=zTS3z&prod=zOTprodz&tech=zOttechz&prog=zOTprogz&type=zSOz&media=zOTmediaz&country=zUSz
|
|
'url': 'http://www.pluralsight.com/courses/hosting-sql-server-windows-azure-iaas',
|
|
'info_dict': {
|
|
'id': 'hosting-sql-server-windows-azure-iaas',
|
|
'title': 'Hosting SQL Server in Microsoft Azure IaaS Fundamentals',
|
|
'description': 'md5:61b37e60f21c4b2f91dc621a977d0986',
|
|
},
|
|
'playlist_count': 31,
|
|
}, {
|
|
# available without pluralsight account
|
|
'url': 'https://www.pluralsight.com/courses/angularjs-get-started',
|
|
'only_matching': True,
|
|
}, {
|
|
'url': 'https://app.pluralsight.com/library/courses/understanding-microsoft-azure-amazon-aws/table-of-contents',
|
|
'only_matching': True,
|
|
}]
|
|
|
|
def _real_extract(self, url):
|
|
course_id = self._match_id(url)
|
|
|
|
# TODO: PSM cookie
|
|
|
|
course = self._download_json(
|
|
'%s/data/course/%s' % (self._API_BASE, course_id),
|
|
course_id, 'Downloading course JSON')
|
|
|
|
title = course['title']
|
|
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 = []
|
|
for num, module in enumerate(course_data, 1):
|
|
for clip in module.get('clips', []):
|
|
player_parameters = clip.get('playerParameters')
|
|
if not player_parameters:
|
|
continue
|
|
entries.append({
|
|
'_type': 'url_transparent',
|
|
'url': '%s/training/player?%s' % (self._API_BASE, player_parameters),
|
|
'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)
|