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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 ..compat import compat_str
8 from ..utils import (
9 clean_html,
10 ExtractorError,
11 get_element_by_class,
12 urlencode_postdata,
13 urljoin,
14 )
15
16
17 class TeachableBaseIE(InfoExtractor):
18 _NETRC_MACHINE = 'teachable'
19 _URL_PREFIX = 'teachable:'
20
21 _SITES = {
22 # Only notable ones here
23 'upskillcourses.com': 'upskill',
24 'academy.gns3.com': 'gns3',
25 'academyhacker.com': 'academyhacker',
26 'stackskills.com': 'stackskills',
27 'market.saleshacker.com': 'saleshacker',
28 'learnability.org': 'learnability',
29 'edurila.com': 'edurila',
30 'courses.workitdaily.com': 'workitdaily',
31 }
32
33 _VALID_URL_SUB_TUPLE = (_URL_PREFIX, '|'.join(re.escape(site) for site in _SITES.keys()))
34
35 def _real_initialize(self):
36 self._logged_in = False
37
38 def _login(self, site):
39 if self._logged_in:
40 return
41
42 username, password = self._get_login_info(
43 netrc_machine=self._SITES.get(site, site))
44 if username is None:
45 return
46
47 login_page, urlh = self._download_webpage_handle(
48 'https://%s/sign_in' % site, None,
49 'Downloading %s login page' % site)
50
51 login_url = compat_str(urlh.geturl())
52
53 login_form = self._hidden_inputs(login_page)
54
55 login_form.update({
56 'user[email]': username,
57 'user[password]': password,
58 })
59
60 post_url = self._search_regex(
61 r'<form[^>]+action=(["\'])(?P<url>(?:(?!\1).)+)\1', login_page,
62 'post url', default=login_url, group='url')
63
64 if not post_url.startswith('http'):
65 post_url = urljoin(login_url, post_url)
66
67 response = self._download_webpage(
68 post_url, None, 'Logging in to %s' % site,
69 data=urlencode_postdata(login_form),
70 headers={
71 'Content-Type': 'application/x-www-form-urlencoded',
72 'Referer': login_url,
73 })
74
75 if '>I accept the new Privacy Policy<' in response:
76 raise ExtractorError(
77 'Unable to login: %s asks you to accept new Privacy Policy. '
78 'Go to https://%s/ and accept.' % (site, site), expected=True)
79
80 # Successful login
81 if any(re.search(p, response) for p in (
82 r'class=["\']user-signout',
83 r'<a[^>]+\bhref=["\']/sign_out',
84 r'>\s*Log out\s*<')):
85 self._logged_in = True
86 return
87
88 message = get_element_by_class('alert', response)
89 if message is not None:
90 raise ExtractorError(
91 'Unable to login: %s' % clean_html(message), expected=True)
92
93 raise ExtractorError('Unable to log in')
94
95
96 class TeachableIE(TeachableBaseIE):
97 _VALID_URL = r'''(?x)
98 (?:
99 %shttps?://(?P<site_t>[^/]+)|
100 https?://(?:www\.)?(?P<site>%s)
101 )
102 /courses/[^/]+/lectures/(?P<id>\d+)
103 ''' % TeachableBaseIE._VALID_URL_SUB_TUPLE
104
105 _TESTS = [{
106 'url': 'http://upskillcourses.com/courses/essential-web-developer-course/lectures/1747100',
107 'info_dict': {
108 'id': 'uzw6zw58or',
109 'ext': 'mp4',
110 'title': 'Welcome to the Course!',
111 'description': 'md5:65edb0affa582974de4625b9cdea1107',
112 'duration': 138.763,
113 'timestamp': 1479846621,
114 'upload_date': '20161122',
115 },
116 'params': {
117 'skip_download': True,
118 },
119 }, {
120 'url': 'http://upskillcourses.com/courses/119763/lectures/1747100',
121 'only_matching': True,
122 }, {
123 'url': 'https://academy.gns3.com/courses/423415/lectures/6885939',
124 'only_matching': True,
125 }, {
126 'url': 'teachable:https://upskillcourses.com/courses/essential-web-developer-course/lectures/1747100',
127 'only_matching': True,
128 }]
129
130 @staticmethod
131 def _is_teachable(webpage):
132 return 'teachableTracker.linker:autoLink' in webpage and re.search(
133 r'<link[^>]+href=["\']https?://process\.fs\.teachablecdn\.com',
134 webpage)
135
136 @staticmethod
137 def _extract_url(webpage, source_url):
138 if not TeachableIE._is_teachable(webpage):
139 return
140 if re.match(r'https?://[^/]+/(?:courses|p)', source_url):
141 return '%s%s' % (TeachableBaseIE._URL_PREFIX, source_url)
142
143 def _real_extract(self, url):
144 mobj = re.match(self._VALID_URL, url)
145 site = mobj.group('site') or mobj.group('site_t')
146 video_id = mobj.group('id')
147
148 self._login(site)
149
150 prefixed = url.startswith(self._URL_PREFIX)
151 if prefixed:
152 url = url[len(self._URL_PREFIX):]
153
154 webpage = self._download_webpage(url, video_id)
155
156 wistia_url = WistiaIE._extract_url(webpage)
157 if not wistia_url:
158 if any(re.search(p, webpage) for p in (
159 r'class=["\']lecture-contents-locked',
160 r'>\s*Lecture contents locked',
161 r'id=["\']lecture-locked')):
162 self.raise_login_required('Lecture contents locked')
163
164 title = self._og_search_title(webpage, default=None)
165
166 return {
167 '_type': 'url_transparent',
168 'url': wistia_url,
169 'ie_key': WistiaIE.ie_key(),
170 'title': title,
171 }
172
173
174 class TeachableCourseIE(TeachableBaseIE):
175 _VALID_URL = r'''(?x)
176 (?:
177 %shttps?://(?P<site_t>[^/]+)|
178 https?://(?:www\.)?(?P<site>%s)
179 )
180 /(?:courses|p)/(?:enrolled/)?(?P<id>[^/?#&]+)
181 ''' % TeachableBaseIE._VALID_URL_SUB_TUPLE
182 _TESTS = [{
183 'url': 'http://upskillcourses.com/courses/essential-web-developer-course/',
184 'info_dict': {
185 'id': 'essential-web-developer-course',
186 'title': 'The Essential Web Developer Course (Free)',
187 },
188 'playlist_count': 192,
189 }, {
190 'url': 'http://upskillcourses.com/courses/119763/',
191 'only_matching': True,
192 }, {
193 'url': 'http://upskillcourses.com/courses/enrolled/119763',
194 'only_matching': True,
195 }, {
196 'url': 'https://academy.gns3.com/courses/enrolled/423415',
197 'only_matching': True,
198 }, {
199 'url': 'teachable:https://learn.vrdev.school/p/gear-vr-developer-mini',
200 'only_matching': True,
201 }, {
202 'url': 'teachable:https://filmsimplified.com/p/davinci-resolve-15-crash-course',
203 'only_matching': True,
204 }]
205
206 @classmethod
207 def suitable(cls, url):
208 return False if TeachableIE.suitable(url) else super(
209 TeachableCourseIE, cls).suitable(url)
210
211 def _real_extract(self, url):
212 mobj = re.match(self._VALID_URL, url)
213 site = mobj.group('site') or mobj.group('site_t')
214 course_id = mobj.group('id')
215
216 self._login(site)
217
218 prefixed = url.startswith(self._URL_PREFIX)
219 if prefixed:
220 prefix = self._URL_PREFIX
221 url = url[len(prefix):]
222
223 webpage = self._download_webpage(url, course_id)
224
225 url_base = 'https://%s/' % site
226
227 entries = []
228
229 for mobj in re.finditer(
230 r'(?s)(?P<li><li[^>]+class=(["\'])(?:(?!\2).)*?section-item[^>]+>.+?</li>)',
231 webpage):
232 li = mobj.group('li')
233 if 'fa-youtube-play' not in li:
234 continue
235 lecture_url = self._search_regex(
236 r'<a[^>]+href=(["\'])(?P<url>(?:(?!\1).)+)\1', li,
237 'lecture url', default=None, group='url')
238 if not lecture_url:
239 continue
240 lecture_id = self._search_regex(
241 r'/lectures/(\d+)', lecture_url, 'lecture id', default=None)
242 title = self._html_search_regex(
243 r'<span[^>]+class=["\']lecture-name[^>]+>([^<]+)', li,
244 'title', default=None)
245 entry_url = urljoin(url_base, lecture_url)
246 if prefixed:
247 entry_url = self._URL_PREFIX + entry_url
248 entries.append(
249 self.url_result(
250 entry_url,
251 ie=TeachableIE.ie_key(), video_id=lecture_id,
252 video_title=clean_html(title)))
253
254 course_title = self._html_search_regex(
255 (r'(?s)<img[^>]+class=["\']course-image[^>]+>\s*<h\d>(.+?)</h',
256 r'(?s)<h\d[^>]+class=["\']course-title[^>]+>(.+?)</h'),
257 webpage, 'course title', fatal=False)
258
259 return self.playlist_result(entries, course_id, course_title)