[yt-dlp.git] / youtube_dlc / extractor / teachable.py

from __future__ import unicode_literals

import re

from .common import InfoExtractor
from .wistia import WistiaIE
from ..utils import (
    clean_html,
    ExtractorError,
    int_or_none,
    get_element_by_class,
    strip_or_none,
    urlencode_postdata,
    urljoin,
)


class TeachableBaseIE(InfoExtractor):
    _NETRC_MACHINE = 'teachable'
    _URL_PREFIX = 'teachable:'

    _SITES = {
        # Only notable ones here
        'v1.upskillcourses.com': 'upskill',
        'gns3.teachable.com': 'gns3',
        'academyhacker.com': 'academyhacker',
        'stackskills.com': 'stackskills',
        'market.saleshacker.com': 'saleshacker',
        'learnability.org': 'learnability',
        'edurila.com': 'edurila',
        'courses.workitdaily.com': 'workitdaily',
    }

    _VALID_URL_SUB_TUPLE = (_URL_PREFIX, '|'.join(re.escape(site) for site in _SITES.keys()))

    def _real_initialize(self):
        self._logged_in = False

    def _login(self, site):
        if self._logged_in:
            return

        username, password = self._get_login_info(
            netrc_machine=self._SITES.get(site, site))
        if username is None:
            return

        login_page, urlh = self._download_webpage_handle(
            'https://%s/sign_in' % site, None,
            'Downloading %s login page' % site)

        def is_logged(webpage):
            return any(re.search(p, webpage) for p in (
                r'class=["\']user-signout',
                r'<a[^>]+\bhref=["\']/sign_out',
                r'Log\s+[Oo]ut\s*<'))

        if is_logged(login_page):
            self._logged_in = True
            return

        login_url = urlh.geturl()

        login_form = self._hidden_inputs(login_page)

        login_form.update({
            'user[email]': username,
            'user[password]': password,
        })

        post_url = self._search_regex(
            r'<form[^>]+action=(["\'])(?P<url>(?:(?!\1).)+)\1', login_page,
            'post url', default=login_url, group='url')

        if not post_url.startswith('http'):
            post_url = urljoin(login_url, post_url)

        response = self._download_webpage(
            post_url, None, 'Logging in to %s' % site,
            data=urlencode_postdata(login_form),
            headers={
                'Content-Type': 'application/x-www-form-urlencoded',
                'Referer': login_url,
            })

        if '>I accept the new Privacy Policy<' in response:
            raise ExtractorError(
                'Unable to login: %s asks you to accept new Privacy Policy. '
                'Go to https://%s/ and accept.' % (site, site), expected=True)

        # Successful login
        if is_logged(response):
            self._logged_in = True
            return

        message = get_element_by_class('alert', response)
        if message is not None:
            raise ExtractorError(
                'Unable to login: %s' % clean_html(message), expected=True)

        raise ExtractorError('Unable to log in')


class TeachableIE(TeachableBaseIE):
    _VALID_URL = r'''(?x)
                    (?:
                        %shttps?://(?P<site_t>[^/]+)|
                        https?://(?:www\.)?(?P<site>%s)
                    )
                    /courses/[^/]+/lectures/(?P<id>\d+)
                    ''' % TeachableBaseIE._VALID_URL_SUB_TUPLE

    _TESTS = [{
        'url': 'https://gns3.teachable.com/courses/gns3-certified-associate/lectures/6842364',
        'info_dict': {
            'id': 'untlgzk1v7',
            'ext': 'bin',
            'title': 'Overview',
            'description': 'md5:071463ff08b86c208811130ea1c2464c',
            'duration': 736.4,
            'timestamp': 1542315762,
            'upload_date': '20181115',
            'chapter': 'Welcome',
            'chapter_number': 1,
        },
        'params': {
            'skip_download': True,
        },
    }, {
        'url': 'http://v1.upskillcourses.com/courses/119763/lectures/1747100',
        'only_matching': True,
    }, {
        'url': 'https://gns3.teachable.com/courses/423415/lectures/6885939',
        'only_matching': True,
    }, {
        'url': 'teachable:https://v1.upskillcourses.com/courses/essential-web-developer-course/lectures/1747100',
        'only_matching': True,
    }]

    @staticmethod
    def _is_teachable(webpage):
        return 'teachableTracker.linker:autoLink' in webpage and re.search(
            r'<link[^>]+href=["\']https?://(?:process\.fs|assets)\.teachablecdn\.com',
            webpage)

    @staticmethod
    def _extract_url(webpage, source_url):
        if not TeachableIE._is_teachable(webpage):
            return
        if re.match(r'https?://[^/]+/(?:courses|p)', source_url):
            return '%s%s' % (TeachableBaseIE._URL_PREFIX, source_url)

    def _real_extract(self, url):
        mobj = re.match(self._VALID_URL, url)
        site = mobj.group('site') or mobj.group('site_t')
        video_id = mobj.group('id')

        self._login(site)

        prefixed = url.startswith(self._URL_PREFIX)
        if prefixed:
            url = url[len(self._URL_PREFIX):]

        webpage = self._download_webpage(url, video_id)

        wistia_urls = WistiaIE._extract_urls(webpage)
        if not wistia_urls:
            if any(re.search(p, webpage) for p in (
                    r'class=["\']lecture-contents-locked',
                    r'>\s*Lecture contents locked',
                    r'id=["\']lecture-locked',
                    # https://academy.tailoredtutors.co.uk/courses/108779/lectures/1955313
                    r'class=["\'](?:inner-)?lesson-locked',
                    r'>LESSON LOCKED<')):
                self.raise_login_required('Lecture contents locked')
            raise ExtractorError('Unable to find video URL')

        title = self._og_search_title(webpage, default=None)

        chapter = None
        chapter_number = None
        section_item = self._search_regex(
            r'(?s)(?P<li><li[^>]+\bdata-lecture-id=["\']%s[^>]+>.+?</li>)' % video_id,
            webpage, 'section item', default=None, group='li')
        if section_item:
            chapter_number = int_or_none(self._search_regex(
                r'data-ss-position=["\'](\d+)', section_item, 'section id',
                default=None))
            if chapter_number is not None:
                sections = []
                for s in re.findall(
                        r'(?s)<div[^>]+\bclass=["\']section-title[^>]+>(.+?)</div>', webpage):
                    section = strip_or_none(clean_html(s))
                    if not section:
                        sections = []
                        break
                    sections.append(section)
                if chapter_number <= len(sections):
                    chapter = sections[chapter_number - 1]

        entries = [{
            '_type': 'url_transparent',
            'url': wistia_url,
            'ie_key': WistiaIE.ie_key(),
            'title': title,
            'chapter': chapter,
            'chapter_number': chapter_number,
        } for wistia_url in wistia_urls]

        return self.playlist_result(entries, video_id, title)


class TeachableCourseIE(TeachableBaseIE):
    _VALID_URL = r'''(?x)
                        (?:
                            %shttps?://(?P<site_t>[^/]+)|
                            https?://(?:www\.)?(?P<site>%s)
                        )
                        /(?:courses|p)/(?:enrolled/)?(?P<id>[^/?#&]+)
                    ''' % TeachableBaseIE._VALID_URL_SUB_TUPLE
    _TESTS = [{
        'url': 'http://v1.upskillcourses.com/courses/essential-web-developer-course/',
        'info_dict': {
            'id': 'essential-web-developer-course',
            'title': 'The Essential Web Developer Course (Free)',
        },
        'playlist_count': 192,
    }, {
        'url': 'http://v1.upskillcourses.com/courses/119763/',
        'only_matching': True,
    }, {
        'url': 'http://v1.upskillcourses.com/courses/enrolled/119763',
        'only_matching': True,
    }, {
        'url': 'https://gns3.teachable.com/courses/enrolled/423415',
        'only_matching': True,
    }, {
        'url': 'teachable:https://learn.vrdev.school/p/gear-vr-developer-mini',
        'only_matching': True,
    }, {
        'url': 'teachable:https://filmsimplified.com/p/davinci-resolve-15-crash-course',
        'only_matching': True,
    }]

    @classmethod
    def suitable(cls, url):
        return False if TeachableIE.suitable(url) else super(
            TeachableCourseIE, cls).suitable(url)

    def _real_extract(self, url):
        mobj = re.match(self._VALID_URL, url)
        site = mobj.group('site') or mobj.group('site_t')
        course_id = mobj.group('id')

        self._login(site)

        prefixed = url.startswith(self._URL_PREFIX)
        if prefixed:
            prefix = self._URL_PREFIX
            url = url[len(prefix):]

        webpage = self._download_webpage(url, course_id)

        url_base = 'https://%s/' % site

        entries = []

        for mobj in re.finditer(
                r'(?s)(?P<li><li[^>]+class=(["\'])(?:(?!\2).)*?section-item[^>]+>.+?</li>)',
                webpage):
            li = mobj.group('li')
            if 'fa-youtube-play' not in li and not re.search(r'\d{1,2}:\d{2}', li):
                continue
            lecture_url = self._search_regex(
                r'<a[^>]+href=(["\'])(?P<url>(?:(?!\1).)+)\1', li,
                'lecture url', default=None, group='url')
            if not lecture_url:
                continue
            lecture_id = self._search_regex(
                r'/lectures/(\d+)', lecture_url, 'lecture id', default=None)
            title = self._html_search_regex(
                r'<span[^>]+class=["\']lecture-name[^>]+>([^<]+)', li,
                'title', default=None)
            entry_url = urljoin(url_base, lecture_url)
            if prefixed:
                entry_url = self._URL_PREFIX + entry_url
            entries.append(
                self.url_result(
                    entry_url,
                    ie=TeachableIE.ie_key(), video_id=lecture_id,
                    video_title=clean_html(title)))

        course_title = self._html_search_regex(
            (r'(?s)<img[^>]+class=["\']course-image[^>]+>\s*<h\d>(.+?)</h',
             r'(?s)<h\d[^>]+class=["\']course-title[^>]+>(.+?)</h'),
            webpage, 'course title', fatal=False)

        return self.playlist_result(entries, course_id, course_title)
Commit	Line	Data
7fc60f4e S	1	from __future__ import unicode_literals
	2
	3	import re
	4
	5	from .common import InfoExtractor
	6	from .wistia import WistiaIE
7fc60f4e S	7	from ..utils import (
	8	clean_html,
	9	ExtractorError,
4560adc8	10	int_or_none,
7fc60f4e	11	get_element_by_class,
4560adc8	12	strip_or_none,
7fc60f4e S	13	urlencode_postdata,
	14	urljoin,
	15	)
	16
	17
5ee7ae5c S	18	class TeachableBaseIE(InfoExtractor):
	19	_NETRC_MACHINE = 'teachable'
	20	_URL_PREFIX = 'teachable:'
	21
	22	_SITES = {
	23	# Only notable ones here
08a27407	24	'v1.upskillcourses.com': 'upskill',
38fa761a	25	'gns3.teachable.com': 'gns3',
5ee7ae5c S	26	'academyhacker.com': 'academyhacker',
	27	'stackskills.com': 'stackskills',
	28	'market.saleshacker.com': 'saleshacker',
	29	'learnability.org': 'learnability',
	30	'edurila.com': 'edurila',
eecf788b	31	'courses.workitdaily.com': 'workitdaily',
5ee7ae5c S	32	}
	33
	34	_VALID_URL_SUB_TUPLE = (_URL_PREFIX, '\|'.join(re.escape(site) for site in _SITES.keys()))
7fc60f4e S	35
7fc60f4e S	36	def _real_initialize(self):
5ee7ae5c	37	self._logged_in = False
7fc60f4e	38
5ee7ae5c S	39	def _login(self, site):
	40	if self._logged_in:
	41	return
	42
	43	username, password = self._get_login_info(
	44	netrc_machine=self._SITES.get(site, site))
7fc60f4e S	45	if username is None:
	46	return
	47
	48	login_page, urlh = self._download_webpage_handle(
5ee7ae5c S	49	'https://%s/sign_in' % site, None,
5ee7ae5c S	50	'Downloading %s login page' % site)
7fc60f4e	51
74bc2994 S	52	def is_logged(webpage):
	53	return any(re.search(p, webpage) for p in (
	54	r'class=["\']user-signout',
	55	r'<a[^>]+\bhref=["\']/sign_out',
	56	r'Log\s+[Oo]ut\s*<'))
	57
	58	if is_logged(login_page):
	59	self._logged_in = True
	60	return
	61
7947a1f7	62	login_url = urlh.geturl()
7fc60f4e S	63
	64	login_form = self._hidden_inputs(login_page)
	65
	66	login_form.update({
	67	'user[email]': username,
	68	'user[password]': password,
	69	})
	70
	71	post_url = self._search_regex(
	72	r'<form[^>]+action=(["\'])(?P<url>(?:(?!\1).)+)\1', login_page,
	73	'post url', default=login_url, group='url')
	74
	75	if not post_url.startswith('http'):
	76	post_url = urljoin(login_url, post_url)
	77
	78	response = self._download_webpage(
5ee7ae5c	79	post_url, None, 'Logging in to %s' % site,
7fc60f4e S	80	data=urlencode_postdata(login_form),
	81	headers={
	82	'Content-Type': 'application/x-www-form-urlencoded',
	83	'Referer': login_url,
	84	})
	85
5ee7ae5c S	86	if '>I accept the new Privacy Policy<' in response:
	87	raise ExtractorError(
	88	'Unable to login: %s asks you to accept new Privacy Policy. '
	89	'Go to https://%s/ and accept.' % (site, site), expected=True)
	90
7fc60f4e	91	# Successful login
74bc2994	92	if is_logged(response):
5ee7ae5c	93	self._logged_in = True
7fc60f4e S	94	return
	95
	96	message = get_element_by_class('alert', response)
	97	if message is not None:
	98	raise ExtractorError(
	99	'Unable to login: %s' % clean_html(message), expected=True)
	100
	101	raise ExtractorError('Unable to log in')
	102
	103
5ee7ae5c S	104	class TeachableIE(TeachableBaseIE):
	105	_VALID_URL = r'''(?x)
	106	(?:
	107	%shttps?://(?P<site_t>[^/]+)\|
	108	https?://(?:www\.)?(?P<site>%s)
	109	)
	110	/courses/[^/]+/lectures/(?P<id>\d+)
	111	''' % TeachableBaseIE._VALID_URL_SUB_TUPLE
7fc60f4e S	112
7fc60f4e S	113	_TESTS = [{
6e47200b	114	'url': 'https://gns3.teachable.com/courses/gns3-certified-associate/lectures/6842364',
7fc60f4e	115	'info_dict': {
6e47200b S	116	'id': 'untlgzk1v7',
	117	'ext': 'bin',
	118	'title': 'Overview',
	119	'description': 'md5:071463ff08b86c208811130ea1c2464c',
	120	'duration': 736.4,
	121	'timestamp': 1542315762,
	122	'upload_date': '20181115',
	123	'chapter': 'Welcome',
	124	'chapter_number': 1,
7fc60f4e S	125	},
	126	'params': {
	127	'skip_download': True,
	128	},
	129	}, {
08a27407	130	'url': 'http://v1.upskillcourses.com/courses/119763/lectures/1747100',
7fc60f4e	131	'only_matching': True,
5ee7ae5c	132	}, {
38fa761a	133	'url': 'https://gns3.teachable.com/courses/423415/lectures/6885939',
5ee7ae5c S	134	'only_matching': True,
5ee7ae5c S	135	}, {
08a27407	136	'url': 'teachable:https://v1.upskillcourses.com/courses/essential-web-developer-course/lectures/1747100',
5ee7ae5c	137	'only_matching': True,
7fc60f4e S	138	}]
7fc60f4e S	139
5ee7ae5c S	140	@staticmethod
	141	def _is_teachable(webpage):
	142	return 'teachableTracker.linker:autoLink' in webpage and re.search(
29f7c58a	143	r'<link[^>]+href=["\']https?://(?:process\.fs\|assets)\.teachablecdn\.com',
5ee7ae5c S	144	webpage)
	145
	146	@staticmethod
	147	def _extract_url(webpage, source_url):
	148	if not TeachableIE._is_teachable(webpage):
5ee7ae5c S	149	return
	150	if re.match(r'https?://[^/]+/(?:courses\|p)', source_url):
	151	return '%s%s' % (TeachableBaseIE._URL_PREFIX, source_url)
	152
7fc60f4e	153	def _real_extract(self, url):
5ee7ae5c S	154	mobj = re.match(self._VALID_URL, url)
	155	site = mobj.group('site') or mobj.group('site_t')
	156	video_id = mobj.group('id')
	157
	158	self._login(site)
	159
	160	prefixed = url.startswith(self._URL_PREFIX)
	161	if prefixed:
	162	url = url[len(self._URL_PREFIX):]
7fc60f4e S	163
	164	webpage = self._download_webpage(url, video_id)
	165
00d798b7 S	166	wistia_urls = WistiaIE._extract_urls(webpage)
00d798b7 S	167	if not wistia_urls:
7fc60f4e S	168	if any(re.search(p, webpage) for p in (
	169	r'class=["\']lecture-contents-locked',
	170	r'>\s*Lecture contents locked',
f8a12427 S	171	r'id=["\']lecture-locked',
	172	# https://academy.tailoredtutors.co.uk/courses/108779/lectures/1955313
	173	r'class=["\'](?:inner-)?lesson-locked',
	174	r'>LESSON LOCKED<')):
7fc60f4e	175	self.raise_login_required('Lecture contents locked')
941e359e	176	raise ExtractorError('Unable to find video URL')
7fc60f4e S	177
	178	title = self._og_search_title(webpage, default=None)
	179
4560adc8 S	180	chapter = None
	181	chapter_number = None
	182	section_item = self._search_regex(
	183	r'(?s)(?P<li><li[^>]+\bdata-lecture-id=["\']%s[^>]+>.+?</li>)' % video_id,
	184	webpage, 'section item', default=None, group='li')
	185	if section_item:
	186	chapter_number = int_or_none(self._search_regex(
	187	r'data-ss-position=["\'](\d+)', section_item, 'section id',
	188	default=None))
	189	if chapter_number is not None:
	190	sections = []
	191	for s in re.findall(
	192	r'(?s)<div[^>]+\bclass=["\']section-title[^>]+>(.+?)</div>', webpage):
	193	section = strip_or_none(clean_html(s))
	194	if not section:
	195	sections = []
	196	break
	197	sections.append(section)
	198	if chapter_number <= len(sections):
	199	chapter = sections[chapter_number - 1]
	200
00d798b7	201	entries = [{
7fc60f4e S	202	'_type': 'url_transparent',
	203	'url': wistia_url,
	204	'ie_key': WistiaIE.ie_key(),
	205	'title': title,
4560adc8 S	206	'chapter': chapter,
4560adc8 S	207	'chapter_number': chapter_number,
00d798b7 S	208	} for wistia_url in wistia_urls]
	209
	210	return self.playlist_result(entries, video_id, title)
7fc60f4e S	211
7fc60f4e S	212
5ee7ae5c S	213	class TeachableCourseIE(TeachableBaseIE):
	214	_VALID_URL = r'''(?x)
	215	(?:
	216	%shttps?://(?P<site_t>[^/]+)\|
	217	https?://(?:www\.)?(?P<site>%s)
	218	)
	219	/(?:courses\|p)/(?:enrolled/)?(?P<id>[^/?#&]+)
	220	''' % TeachableBaseIE._VALID_URL_SUB_TUPLE
7fc60f4e	221	_TESTS = [{
08a27407	222	'url': 'http://v1.upskillcourses.com/courses/essential-web-developer-course/',
7fc60f4e	223	'info_dict': {
5ee7ae5c	224	'id': 'essential-web-developer-course',
7fc60f4e S	225	'title': 'The Essential Web Developer Course (Free)',
	226	},
	227	'playlist_count': 192,
	228	}, {
08a27407	229	'url': 'http://v1.upskillcourses.com/courses/119763/',
7fc60f4e S	230	'only_matching': True,
7fc60f4e S	231	}, {
08a27407	232	'url': 'http://v1.upskillcourses.com/courses/enrolled/119763',
7fc60f4e	233	'only_matching': True,
5ee7ae5c	234	}, {
38fa761a	235	'url': 'https://gns3.teachable.com/courses/enrolled/423415',
5ee7ae5c S	236	'only_matching': True,
	237	}, {
	238	'url': 'teachable:https://learn.vrdev.school/p/gear-vr-developer-mini',
	239	'only_matching': True,
	240	}, {
	241	'url': 'teachable:https://filmsimplified.com/p/davinci-resolve-15-crash-course',
	242	'only_matching': True,
7fc60f4e S	243	}]
	244
	245	@classmethod
	246	def suitable(cls, url):
5ee7ae5c S	247	return False if TeachableIE.suitable(url) else super(
5ee7ae5c S	248	TeachableCourseIE, cls).suitable(url)
7fc60f4e S	249
7fc60f4e S	250	def _real_extract(self, url):
5ee7ae5c S	251	mobj = re.match(self._VALID_URL, url)
	252	site = mobj.group('site') or mobj.group('site_t')
	253	course_id = mobj.group('id')
	254
	255	self._login(site)
	256
	257	prefixed = url.startswith(self._URL_PREFIX)
	258	if prefixed:
	259	prefix = self._URL_PREFIX
	260	url = url[len(prefix):]
7fc60f4e S	261
	262	webpage = self._download_webpage(url, course_id)
	263
5ee7ae5c	264	url_base = 'https://%s/' % site
7fc60f4e S	265
	266	entries = []
	267
	268	for mobj in re.finditer(
	269	r'(?s)(?P<li><li[^>]+class=(["\'])(?:(?!\2).)*?section-item[^>]+>.+?</li>)',
	270	webpage):
	271	li = mobj.group('li')
29f7c58a	272	if 'fa-youtube-play' not in li and not re.search(r'\d{1,2}:\d{2}', li):
7fc60f4e S	273	continue
	274	lecture_url = self._search_regex(
	275	r'<a[^>]+href=(["\'])(?P<url>(?:(?!\1).)+)\1', li,
	276	'lecture url', default=None, group='url')
	277	if not lecture_url:
	278	continue
	279	lecture_id = self._search_regex(
	280	r'/lectures/(\d+)', lecture_url, 'lecture id', default=None)
	281	title = self._html_search_regex(
	282	r'<span[^>]+class=["\']lecture-name[^>]+>([^<]+)', li,
	283	'title', default=None)
5ee7ae5c S	284	entry_url = urljoin(url_base, lecture_url)
	285	if prefixed:
	286	entry_url = self._URL_PREFIX + entry_url
7fc60f4e S	287	entries.append(
7fc60f4e S	288	self.url_result(
5ee7ae5c S	289	entry_url,
5ee7ae5c S	290	ie=TeachableIE.ie_key(), video_id=lecture_id,
7fc60f4e S	291	video_title=clean_html(title)))
	292
	293	course_title = self._html_search_regex(
	294	(r'(?s)<img[^>]+class=["\']course-image[^>]+>\s*<h\d>(.+?)</h',
	295	r'(?s)<h\d[^>]+class=["\']course-title[^>]+>(.+?)</h'),
	296	webpage, 'course title', fatal=False)
	297
	298	return self.playlist_result(entries, course_id, course_title)