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[youtubedl] / youtube_dl / extractor / teachable.py
1 from __future__ import unicode_literals
2
3 import re
4
5 from .common import InfoExtractor
6 from .wistia import WistiaIE
7 from ..utils import (
8 clean_html,
9 ExtractorError,
10 int_or_none,
11 get_element_by_class,
12 strip_or_none,
13 urlencode_postdata,
14 urljoin,
15 )
16
17
18 class TeachableBaseIE(InfoExtractor):
19 _NETRC_MACHINE = 'teachable'
20 _URL_PREFIX = 'teachable:'
21
22 _SITES = {
23 # Only notable ones here
24 'v1.upskillcourses.com': 'upskill',
25 'gns3.teachable.com': 'gns3',
26 'academyhacker.com': 'academyhacker',
27 'stackskills.com': 'stackskills',
28 'market.saleshacker.com': 'saleshacker',
29 'learnability.org': 'learnability',
30 'edurila.com': 'edurila',
31 'courses.workitdaily.com': 'workitdaily',
32 }
33
34 _VALID_URL_SUB_TUPLE = (_URL_PREFIX, '|'.join(re.escape(site) for site in _SITES.keys()))
35
36 def _real_initialize(self):
37 self._logged_in = False
38
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))
45 if username is None:
46 return
47
48 login_page, urlh = self._download_webpage_handle(
49 'https://%s/sign_in' % site, None,
50 'Downloading %s login page' % site)
51
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
62 login_url = urlh.geturl()
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(
79 post_url, None, 'Logging in to %s' % site,
80 data=urlencode_postdata(login_form),
81 headers={
82 'Content-Type': 'application/x-www-form-urlencoded',
83 'Referer': login_url,
84 })
85
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
91 # Successful login
92 if is_logged(response):
93 self._logged_in = True
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
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
112
113 _TESTS = [{
114 'url': 'https://gns3.teachable.com/courses/gns3-certified-associate/lectures/6842364',
115 'info_dict': {
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,
125 },
126 'params': {
127 'skip_download': True,
128 },
129 }, {
130 'url': 'http://v1.upskillcourses.com/courses/119763/lectures/1747100',
131 'only_matching': True,
132 }, {
133 'url': 'https://gns3.teachable.com/courses/423415/lectures/6885939',
134 'only_matching': True,
135 }, {
136 'url': 'teachable:https://v1.upskillcourses.com/courses/essential-web-developer-course/lectures/1747100',
137 'only_matching': True,
138 }]
139
140 @staticmethod
141 def _is_teachable(webpage):
142 return 'teachableTracker.linker:autoLink' in webpage and re.search(
143 r'<link[^>]+href=["\']https?://process\.fs\.teachablecdn\.com',
144 webpage)
145
146 @staticmethod
147 def _extract_url(webpage, source_url):
148 if not TeachableIE._is_teachable(webpage):
149 return
150 if re.match(r'https?://[^/]+/(?:courses|p)', source_url):
151 return '%s%s' % (TeachableBaseIE._URL_PREFIX, source_url)
152
153 def _real_extract(self, url):
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):]
163
164 webpage = self._download_webpage(url, video_id)
165
166 wistia_urls = WistiaIE._extract_urls(webpage)
167 if not wistia_urls:
168 if any(re.search(p, webpage) for p in (
169 r'class=["\']lecture-contents-locked',
170 r'>\s*Lecture contents locked',
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<')):
175 self.raise_login_required('Lecture contents locked')
176 raise ExtractorError('Unable to find video URL')
177
178 title = self._og_search_title(webpage, default=None)
179
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
201 entries = [{
202 '_type': 'url_transparent',
203 'url': wistia_url,
204 'ie_key': WistiaIE.ie_key(),
205 'title': title,
206 'chapter': chapter,
207 'chapter_number': chapter_number,
208 } for wistia_url in wistia_urls]
209
210 return self.playlist_result(entries, video_id, title)
211
212
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
221 _TESTS = [{
222 'url': 'http://v1.upskillcourses.com/courses/essential-web-developer-course/',
223 'info_dict': {
224 'id': 'essential-web-developer-course',
225 'title': 'The Essential Web Developer Course (Free)',
226 },
227 'playlist_count': 192,
228 }, {
229 'url': 'http://v1.upskillcourses.com/courses/119763/',
230 'only_matching': True,
231 }, {
232 'url': 'http://v1.upskillcourses.com/courses/enrolled/119763',
233 'only_matching': True,
234 }, {
235 'url': 'https://gns3.teachable.com/courses/enrolled/423415',
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,
243 }]
244
245 @classmethod
246 def suitable(cls, url):
247 return False if TeachableIE.suitable(url) else super(
248 TeachableCourseIE, cls).suitable(url)
249
250 def _real_extract(self, url):
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):]
261
262 webpage = self._download_webpage(url, course_id)
263
264 url_base = 'https://%s/' % site
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')
272 if 'fa-youtube-play' not in li:
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)
284 entry_url = urljoin(url_base, lecture_url)
285 if prefixed:
286 entry_url = self._URL_PREFIX + entry_url
287 entries.append(
288 self.url_result(
289 entry_url,
290 ie=TeachableIE.ie_key(), video_id=lecture_id,
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)