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			299 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			299 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
from __future__ import unicode_literals
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import re
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from .common import InfoExtractor
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from .wistia import WistiaIE
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from ..utils import (
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    clean_html,
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    ExtractorError,
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    int_or_none,
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    get_element_by_class,
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    strip_or_none,
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    urlencode_postdata,
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    urljoin,
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)
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class TeachableBaseIE(InfoExtractor):
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    _NETRC_MACHINE = 'teachable'
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    _URL_PREFIX = 'teachable:'
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    _SITES = {
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        # Only notable ones here
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        'v1.upskillcourses.com': 'upskill',
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        'gns3.teachable.com': 'gns3',
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        'academyhacker.com': 'academyhacker',
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        'stackskills.com': 'stackskills',
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        'market.saleshacker.com': 'saleshacker',
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        'learnability.org': 'learnability',
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        'edurila.com': 'edurila',
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        'courses.workitdaily.com': 'workitdaily',
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    }
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    _VALID_URL_SUB_TUPLE = (_URL_PREFIX, '|'.join(re.escape(site) for site in _SITES.keys()))
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    def _real_initialize(self):
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        self._logged_in = False
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    def _login(self, site):
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        if self._logged_in:
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            return
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        username, password = self._get_login_info(
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            netrc_machine=self._SITES.get(site, site))
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        if username is None:
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            return
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        login_page, urlh = self._download_webpage_handle(
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            'https://%s/sign_in' % site, None,
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            'Downloading %s login page' % site)
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        def is_logged(webpage):
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            return any(re.search(p, webpage) for p in (
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                r'class=["\']user-signout',
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                r'<a[^>]+\bhref=["\']/sign_out',
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                r'Log\s+[Oo]ut\s*<'))
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        if is_logged(login_page):
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            self._logged_in = True
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            return
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        login_url = urlh.geturl()
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        login_form = self._hidden_inputs(login_page)
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        login_form.update({
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            'user[email]': username,
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            'user[password]': password,
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        })
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        post_url = self._search_regex(
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            r'<form[^>]+action=(["\'])(?P<url>(?:(?!\1).)+)\1', login_page,
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            'post url', default=login_url, group='url')
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        if not post_url.startswith('http'):
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            post_url = urljoin(login_url, post_url)
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        response = self._download_webpage(
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            post_url, None, 'Logging in to %s' % site,
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            data=urlencode_postdata(login_form),
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            headers={
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                'Content-Type': 'application/x-www-form-urlencoded',
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                'Referer': login_url,
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            })
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        if '>I accept the new Privacy Policy<' in response:
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            raise ExtractorError(
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                'Unable to login: %s asks you to accept new Privacy Policy. '
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                'Go to https://%s/ and accept.' % (site, site), expected=True)
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        # Successful login
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        if is_logged(response):
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            self._logged_in = True
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            return
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        message = get_element_by_class('alert', response)
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        if message is not None:
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            raise ExtractorError(
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                'Unable to login: %s' % clean_html(message), expected=True)
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        raise ExtractorError('Unable to log in')
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class TeachableIE(TeachableBaseIE):
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    _VALID_URL = r'''(?x)
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                    (?:
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                        %shttps?://(?P<site_t>[^/]+)|
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                        https?://(?:www\.)?(?P<site>%s)
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                    )
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                    /courses/[^/]+/lectures/(?P<id>\d+)
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                    ''' % TeachableBaseIE._VALID_URL_SUB_TUPLE
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    _TESTS = [{
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        'url': 'https://gns3.teachable.com/courses/gns3-certified-associate/lectures/6842364',
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        'info_dict': {
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            'id': 'untlgzk1v7',
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            'ext': 'bin',
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            'title': 'Overview',
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            'description': 'md5:071463ff08b86c208811130ea1c2464c',
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            'duration': 736.4,
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            'timestamp': 1542315762,
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            'upload_date': '20181115',
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            'chapter': 'Welcome',
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            'chapter_number': 1,
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        },
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        'params': {
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            'skip_download': True,
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        },
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    }, {
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        'url': 'http://v1.upskillcourses.com/courses/119763/lectures/1747100',
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        'only_matching': True,
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    }, {
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        'url': 'https://gns3.teachable.com/courses/423415/lectures/6885939',
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        'only_matching': True,
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    }, {
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        'url': 'teachable:https://v1.upskillcourses.com/courses/essential-web-developer-course/lectures/1747100',
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        'only_matching': True,
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    }]
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    @staticmethod
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    def _is_teachable(webpage):
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        return 'teachableTracker.linker:autoLink' in webpage and re.search(
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            r'<link[^>]+href=["\']https?://(?:process\.fs|assets)\.teachablecdn\.com',
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            webpage)
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    @staticmethod
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    def _extract_url(webpage, source_url):
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        if not TeachableIE._is_teachable(webpage):
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            return
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        if re.match(r'https?://[^/]+/(?:courses|p)', source_url):
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            return '%s%s' % (TeachableBaseIE._URL_PREFIX, source_url)
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    def _real_extract(self, url):
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        mobj = re.match(self._VALID_URL, url)
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        site = mobj.group('site') or mobj.group('site_t')
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        video_id = mobj.group('id')
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        self._login(site)
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        prefixed = url.startswith(self._URL_PREFIX)
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        if prefixed:
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            url = url[len(self._URL_PREFIX):]
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        webpage = self._download_webpage(url, video_id)
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        wistia_urls = WistiaIE._extract_urls(webpage)
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        if not wistia_urls:
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            if any(re.search(p, webpage) for p in (
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                    r'class=["\']lecture-contents-locked',
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                    r'>\s*Lecture contents locked',
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                    r'id=["\']lecture-locked',
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                    # https://academy.tailoredtutors.co.uk/courses/108779/lectures/1955313
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                    r'class=["\'](?:inner-)?lesson-locked',
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                    r'>LESSON LOCKED<')):
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                self.raise_login_required('Lecture contents locked')
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            raise ExtractorError('Unable to find video URL')
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        title = self._og_search_title(webpage, default=None)
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        chapter = None
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        chapter_number = None
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        section_item = self._search_regex(
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            r'(?s)(?P<li><li[^>]+\bdata-lecture-id=["\']%s[^>]+>.+?</li>)' % video_id,
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            webpage, 'section item', default=None, group='li')
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        if section_item:
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            chapter_number = int_or_none(self._search_regex(
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                r'data-ss-position=["\'](\d+)', section_item, 'section id',
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                default=None))
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            if chapter_number is not None:
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                sections = []
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                for s in re.findall(
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                        r'(?s)<div[^>]+\bclass=["\']section-title[^>]+>(.+?)</div>', webpage):
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                    section = strip_or_none(clean_html(s))
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                    if not section:
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                        sections = []
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                        break
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                    sections.append(section)
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                if chapter_number <= len(sections):
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                    chapter = sections[chapter_number - 1]
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        entries = [{
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            '_type': 'url_transparent',
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            'url': wistia_url,
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            'ie_key': WistiaIE.ie_key(),
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            'title': title,
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            'chapter': chapter,
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            'chapter_number': chapter_number,
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        } for wistia_url in wistia_urls]
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        return self.playlist_result(entries, video_id, title)
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class TeachableCourseIE(TeachableBaseIE):
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    _VALID_URL = r'''(?x)
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                        (?:
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                            %shttps?://(?P<site_t>[^/]+)|
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                            https?://(?:www\.)?(?P<site>%s)
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                        )
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                        /(?:courses|p)/(?:enrolled/)?(?P<id>[^/?#&]+)
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                    ''' % TeachableBaseIE._VALID_URL_SUB_TUPLE
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    _TESTS = [{
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        'url': 'http://v1.upskillcourses.com/courses/essential-web-developer-course/',
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        'info_dict': {
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            'id': 'essential-web-developer-course',
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            'title': 'The Essential Web Developer Course (Free)',
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        },
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        'playlist_count': 192,
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    }, {
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        'url': 'http://v1.upskillcourses.com/courses/119763/',
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        'only_matching': True,
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    }, {
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        'url': 'http://v1.upskillcourses.com/courses/enrolled/119763',
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        'only_matching': True,
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    }, {
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        'url': 'https://gns3.teachable.com/courses/enrolled/423415',
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        'only_matching': True,
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    }, {
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        'url': 'teachable:https://learn.vrdev.school/p/gear-vr-developer-mini',
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        'only_matching': True,
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    }, {
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        'url': 'teachable:https://filmsimplified.com/p/davinci-resolve-15-crash-course',
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        'only_matching': True,
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    }]
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    @classmethod
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    def suitable(cls, url):
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        return False if TeachableIE.suitable(url) else super(
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            TeachableCourseIE, cls).suitable(url)
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    def _real_extract(self, url):
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        mobj = re.match(self._VALID_URL, url)
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        site = mobj.group('site') or mobj.group('site_t')
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        course_id = mobj.group('id')
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        self._login(site)
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        prefixed = url.startswith(self._URL_PREFIX)
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        if prefixed:
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            prefix = self._URL_PREFIX
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            url = url[len(prefix):]
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        webpage = self._download_webpage(url, course_id)
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        url_base = 'https://%s/' % site
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        entries = []
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        for mobj in re.finditer(
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                r'(?s)(?P<li><li[^>]+class=(["\'])(?:(?!\2).)*?section-item[^>]+>.+?</li>)',
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                webpage):
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            li = mobj.group('li')
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            if 'fa-youtube-play' not in li and not re.search(r'\d{1,2}:\d{2}', li):
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                continue
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            lecture_url = self._search_regex(
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                r'<a[^>]+href=(["\'])(?P<url>(?:(?!\1).)+)\1', li,
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                'lecture url', default=None, group='url')
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            if not lecture_url:
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                continue
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            lecture_id = self._search_regex(
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                r'/lectures/(\d+)', lecture_url, 'lecture id', default=None)
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            title = self._html_search_regex(
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                r'<span[^>]+class=["\']lecture-name[^>]+>([^<]+)', li,
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                'title', default=None)
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            entry_url = urljoin(url_base, lecture_url)
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            if prefixed:
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                entry_url = self._URL_PREFIX + entry_url
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            entries.append(
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                self.url_result(
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                    entry_url,
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                    ie=TeachableIE.ie_key(), video_id=lecture_id,
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                    video_title=clean_html(title)))
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        course_title = self._html_search_regex(
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            (r'(?s)<img[^>]+class=["\']course-image[^>]+>\s*<h\d>(.+?)</h',
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             r'(?s)<h\d[^>]+class=["\']course-title[^>]+>(.+?)</h'),
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            webpage, 'course title', fatal=False)
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        return self.playlist_result(entries, course_id, course_title)
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