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69fcdb84 S |
1 | # coding: utf-8 |
2 | from __future__ import unicode_literals | |
3 | ||
4 | import re | |
5 | ||
6 | from .common import InfoExtractor | |
7 | from ..compat import ( | |
8 | compat_str, | |
9 | compat_urlparse, | |
10 | ) | |
11 | from ..utils import ( | |
12 | ExtractorError, | |
13 | parse_duration, | |
3052a30d | 14 | url_or_none, |
69fcdb84 S |
15 | urlencode_postdata, |
16 | ) | |
17 | ||
18 | ||
19 | class FrontendMastersBaseIE(InfoExtractor): | |
20 | _API_BASE = 'https://api.frontendmasters.com/v1/kabuki' | |
21 | _LOGIN_URL = 'https://frontendmasters.com/login/' | |
22 | ||
23 | _NETRC_MACHINE = 'frontendmasters' | |
24 | ||
25 | _QUALITIES = { | |
26 | 'low': {'width': 480, 'height': 360}, | |
27 | 'mid': {'width': 1280, 'height': 720}, | |
28 | 'high': {'width': 1920, 'height': 1080} | |
29 | } | |
30 | ||
31 | def _real_initialize(self): | |
32 | self._login() | |
33 | ||
34 | def _login(self): | |
35 | (username, password) = self._get_login_info() | |
36 | if username is None: | |
37 | return | |
38 | ||
39 | login_page = self._download_webpage( | |
40 | self._LOGIN_URL, None, 'Downloading login page') | |
41 | ||
42 | login_form = self._hidden_inputs(login_page) | |
43 | ||
44 | login_form.update({ | |
45 | 'username': username, | |
46 | 'password': password | |
47 | }) | |
48 | ||
49 | post_url = self._search_regex( | |
50 | r'<form[^>]+action=(["\'])(?P<url>.+?)\1', login_page, | |
51 | 'post_url', default=self._LOGIN_URL, group='url') | |
52 | ||
53 | if not post_url.startswith('http'): | |
54 | post_url = compat_urlparse.urljoin(self._LOGIN_URL, post_url) | |
55 | ||
56 | response = self._download_webpage( | |
57 | post_url, None, 'Logging in', data=urlencode_postdata(login_form), | |
58 | headers={'Content-Type': 'application/x-www-form-urlencoded'}) | |
59 | ||
60 | # Successful login | |
61 | if any(p in response for p in ( | |
62 | 'wp-login.php?action=logout', '>Logout')): | |
63 | return | |
64 | ||
65 | error = self._html_search_regex( | |
66 | r'class=(["\'])(?:(?!\1).)*\bMessageAlert\b(?:(?!\1).)*\1[^>]*>(?P<error>[^<]+)<', | |
67 | response, 'error message', default=None, group='error') | |
68 | if error: | |
69 | raise ExtractorError('Unable to login: %s' % error, expected=True) | |
70 | raise ExtractorError('Unable to log in') | |
71 | ||
72 | ||
73 | class FrontendMastersPageBaseIE(FrontendMastersBaseIE): | |
74 | def _download_course(self, course_name, url): | |
75 | return self._download_json( | |
76 | '%s/courses/%s' % (self._API_BASE, course_name), course_name, | |
77 | 'Downloading course JSON', headers={'Referer': url}) | |
78 | ||
79 | @staticmethod | |
80 | def _extract_chapters(course): | |
81 | chapters = [] | |
82 | lesson_elements = course.get('lessonElements') | |
83 | if isinstance(lesson_elements, list): | |
3052a30d | 84 | chapters = [url_or_none(e) for e in lesson_elements if url_or_none(e)] |
69fcdb84 S |
85 | return chapters |
86 | ||
87 | @staticmethod | |
88 | def _extract_lesson(chapters, lesson_id, lesson): | |
89 | title = lesson.get('title') or lesson_id | |
90 | display_id = lesson.get('slug') | |
91 | description = lesson.get('description') | |
92 | thumbnail = lesson.get('thumbnail') | |
93 | ||
94 | chapter_number = None | |
95 | index = lesson.get('index') | |
96 | element_index = lesson.get('elementIndex') | |
3089bc74 S |
97 | if (isinstance(index, int) and isinstance(element_index, int) |
98 | and index < element_index): | |
69fcdb84 S |
99 | chapter_number = element_index - index |
100 | chapter = (chapters[chapter_number - 1] | |
101 | if chapter_number - 1 < len(chapters) else None) | |
102 | ||
103 | duration = None | |
104 | timestamp = lesson.get('timestamp') | |
105 | if isinstance(timestamp, compat_str): | |
106 | mobj = re.search( | |
107 | r'(?P<start>\d{1,2}:\d{1,2}:\d{1,2})\s*-(?P<end>\s*\d{1,2}:\d{1,2}:\d{1,2})', | |
108 | timestamp) | |
109 | if mobj: | |
110 | duration = parse_duration(mobj.group('end')) - parse_duration( | |
111 | mobj.group('start')) | |
112 | ||
113 | return { | |
114 | '_type': 'url_transparent', | |
115 | 'url': 'frontendmasters:%s' % lesson_id, | |
116 | 'ie_key': FrontendMastersIE.ie_key(), | |
117 | 'id': lesson_id, | |
118 | 'display_id': display_id, | |
119 | 'title': title, | |
120 | 'description': description, | |
121 | 'thumbnail': thumbnail, | |
122 | 'duration': duration, | |
123 | 'chapter': chapter, | |
124 | 'chapter_number': chapter_number, | |
125 | } | |
126 | ||
127 | ||
128 | class FrontendMastersIE(FrontendMastersBaseIE): | |
129 | _VALID_URL = r'(?:frontendmasters:|https?://api\.frontendmasters\.com/v\d+/kabuki/video/)(?P<id>[^/]+)' | |
130 | _TESTS = [{ | |
131 | 'url': 'https://api.frontendmasters.com/v1/kabuki/video/a2qogef6ba', | |
132 | 'md5': '7f161159710d6b7016a4f4af6fcb05e2', | |
133 | 'info_dict': { | |
134 | 'id': 'a2qogef6ba', | |
135 | 'ext': 'mp4', | |
136 | 'title': 'a2qogef6ba', | |
137 | }, | |
138 | 'skip': 'Requires FrontendMasters account credentials', | |
139 | }, { | |
140 | 'url': 'frontendmasters:a2qogef6ba', | |
141 | 'only_matching': True, | |
142 | }] | |
143 | ||
144 | def _real_extract(self, url): | |
145 | lesson_id = self._match_id(url) | |
146 | ||
147 | source_url = '%s/video/%s/source' % (self._API_BASE, lesson_id) | |
148 | ||
149 | formats = [] | |
150 | for ext in ('webm', 'mp4'): | |
151 | for quality in ('low', 'mid', 'high'): | |
152 | resolution = self._QUALITIES[quality].copy() | |
153 | format_id = '%s-%s' % (ext, quality) | |
154 | format_url = self._download_json( | |
155 | source_url, lesson_id, | |
156 | 'Downloading %s source JSON' % format_id, query={ | |
157 | 'f': ext, | |
158 | 'r': resolution['height'], | |
159 | }, headers={ | |
160 | 'Referer': url, | |
161 | }, fatal=False)['url'] | |
162 | ||
163 | if not format_url: | |
164 | continue | |
165 | ||
166 | f = resolution.copy() | |
167 | f.update({ | |
168 | 'url': format_url, | |
169 | 'ext': ext, | |
170 | 'format_id': format_id, | |
171 | }) | |
172 | formats.append(f) | |
173 | self._sort_formats(formats) | |
174 | ||
175 | subtitles = { | |
176 | 'en': [{ | |
177 | 'url': '%s/transcripts/%s.vtt' % (self._API_BASE, lesson_id), | |
178 | }] | |
179 | } | |
180 | ||
181 | return { | |
182 | 'id': lesson_id, | |
183 | 'title': lesson_id, | |
184 | 'formats': formats, | |
185 | 'subtitles': subtitles | |
186 | } | |
187 | ||
188 | ||
189 | class FrontendMastersLessonIE(FrontendMastersPageBaseIE): | |
190 | _VALID_URL = r'https?://(?:www\.)?frontendmasters\.com/courses/(?P<course_name>[^/]+)/(?P<lesson_name>[^/]+)' | |
191 | _TEST = { | |
192 | 'url': 'https://frontendmasters.com/courses/web-development/tools', | |
193 | 'info_dict': { | |
194 | 'id': 'a2qogef6ba', | |
195 | 'display_id': 'tools', | |
196 | 'ext': 'mp4', | |
197 | 'title': 'Tools', | |
198 | 'description': 'md5:82c1ea6472e88ed5acd1829fe992e4f7', | |
199 | 'thumbnail': r're:^https?://.*\.jpg$', | |
200 | 'chapter': 'Introduction', | |
201 | 'chapter_number': 1, | |
202 | }, | |
203 | 'params': { | |
204 | 'skip_download': True, | |
205 | }, | |
206 | 'skip': 'Requires FrontendMasters account credentials', | |
207 | } | |
208 | ||
209 | def _real_extract(self, url): | |
210 | mobj = re.match(self._VALID_URL, url) | |
211 | course_name, lesson_name = mobj.group('course_name', 'lesson_name') | |
212 | ||
213 | course = self._download_course(course_name, url) | |
214 | ||
215 | lesson_id, lesson = next( | |
216 | (video_id, data) | |
217 | for video_id, data in course['lessonData'].items() | |
218 | if data.get('slug') == lesson_name) | |
219 | ||
220 | chapters = self._extract_chapters(course) | |
221 | return self._extract_lesson(chapters, lesson_id, lesson) | |
222 | ||
223 | ||
224 | class FrontendMastersCourseIE(FrontendMastersPageBaseIE): | |
225 | _VALID_URL = r'https?://(?:www\.)?frontendmasters\.com/courses/(?P<id>[^/]+)' | |
226 | _TEST = { | |
227 | 'url': 'https://frontendmasters.com/courses/web-development/', | |
228 | 'info_dict': { | |
229 | 'id': 'web-development', | |
230 | 'title': 'Introduction to Web Development', | |
231 | 'description': 'md5:9317e6e842098bf725d62360e52d49a6', | |
232 | }, | |
233 | 'playlist_count': 81, | |
234 | 'skip': 'Requires FrontendMasters account credentials', | |
235 | } | |
236 | ||
237 | @classmethod | |
238 | def suitable(cls, url): | |
239 | return False if FrontendMastersLessonIE.suitable(url) else super( | |
240 | FrontendMastersBaseIE, cls).suitable(url) | |
241 | ||
242 | def _real_extract(self, url): | |
243 | course_name = self._match_id(url) | |
244 | ||
245 | course = self._download_course(course_name, url) | |
246 | ||
247 | chapters = self._extract_chapters(course) | |
248 | ||
249 | lessons = sorted( | |
250 | course['lessonData'].values(), key=lambda data: data['index']) | |
251 | ||
252 | entries = [] | |
253 | for lesson in lessons: | |
254 | lesson_name = lesson.get('slug') | |
255 | if not lesson_name: | |
256 | continue | |
257 | lesson_id = lesson.get('hash') or lesson.get('statsId') | |
258 | entries.append(self._extract_lesson(chapters, lesson_id, lesson)) | |
259 | ||
260 | title = course.get('title') | |
261 | description = course.get('description') | |
262 | ||
263 | return self.playlist_result(entries, course_name, title, description) |