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a7c26e73 PH |
1 | from __future__ import unicode_literals |
2 | ||
c7f8537d | 3 | import re |
4 | import json | |
5 | ||
6 | from .common import InfoExtractor | |
1cc79574 PH |
7 | from ..compat import ( |
8 | compat_str, | |
7ee40b5d | 9 | compat_urllib_parse, |
10 | compat_urllib_request, | |
1cc79574 PH |
11 | ) |
12 | from ..utils import ( | |
16ff7ebc S |
13 | ExtractorError, |
14 | int_or_none, | |
7ee40b5d | 15 | ) |
c7f8537d | 16 | |
17 | ||
30cbd4e0 S |
18 | class LyndaBaseIE(InfoExtractor): |
19 | _LOGIN_URL = 'https://www.lynda.com/login/login.aspx' | |
20 | _SUCCESSFUL_LOGIN_REGEX = r'isLoggedIn: true' | |
21 | _ACCOUNT_CREDENTIALS_HINT = 'Use --username and --password options to provide lynda.com account credentials.' | |
499bfcbf | 22 | _NETRC_MACHINE = 'lynda' |
30cbd4e0 S |
23 | |
24 | def _real_initialize(self): | |
25 | self._login() | |
26 | ||
27 | def _login(self): | |
28 | (username, password) = self._get_login_info() | |
29 | if username is None: | |
30 | return | |
31 | ||
32 | login_form = { | |
33 | 'username': username, | |
34 | 'password': password, | |
35 | 'remember': 'false', | |
36 | 'stayPut': 'false' | |
37 | } | |
38 | request = compat_urllib_request.Request( | |
39 | self._LOGIN_URL, compat_urllib_parse.urlencode(login_form)) | |
40 | login_page = self._download_webpage( | |
41 | request, None, 'Logging in as %s' % username) | |
42 | ||
43 | # Not (yet) logged in | |
44 | m = re.search(r'loginResultJson = \'(?P<json>[^\']+)\';', login_page) | |
45 | if m is not None: | |
46 | response = m.group('json') | |
47 | response_json = json.loads(response) | |
48 | state = response_json['state'] | |
49 | ||
50 | if state == 'notlogged': | |
51 | raise ExtractorError( | |
52 | 'Unable to login, incorrect username and/or password', | |
53 | expected=True) | |
54 | ||
55 | # This is when we get popup: | |
56 | # > You're already logged in to lynda.com on two devices. | |
57 | # > If you log in here, we'll log you out of another device. | |
58 | # So, we need to confirm this. | |
59 | if state == 'conflicted': | |
60 | confirm_form = { | |
61 | 'username': '', | |
62 | 'password': '', | |
63 | 'resolve': 'true', | |
64 | 'remember': 'false', | |
65 | 'stayPut': 'false', | |
66 | } | |
67 | request = compat_urllib_request.Request( | |
68 | self._LOGIN_URL, compat_urllib_parse.urlencode(confirm_form)) | |
69 | login_page = self._download_webpage( | |
70 | request, None, | |
71 | 'Confirming log in and log out from another device') | |
72 | ||
73 | if re.search(self._SUCCESSFUL_LOGIN_REGEX, login_page) is None: | |
74 | raise ExtractorError('Unable to log in') | |
75 | ||
76 | ||
77 | class LyndaIE(LyndaBaseIE): | |
a7c26e73 PH |
78 | IE_NAME = 'lynda' |
79 | IE_DESC = 'lynda.com videos' | |
30cbd4e0 | 80 | _VALID_URL = r'https?://www\.lynda\.com/(?:[^/]+/[^/]+/\d+|player/embed)/(?P<id>\d+)' |
7ee40b5d | 81 | _NETRC_MACHINE = 'lynda' |
82 | ||
7ee40b5d | 83 | _TIMECODE_REGEX = r'\[(?P<timecode>\d+:\d+:\d+[\.,]\d+)\]' |
84 | ||
a0d64613 | 85 | _TESTS = [{ |
a7c26e73 | 86 | 'url': 'http://www.lynda.com/Bootstrap-tutorials/Using-exercise-files/110885/114408-4.html', |
a7c26e73 | 87 | 'md5': 'ecfc6862da89489161fb9cd5f5a6fac1', |
ac260dd8 | 88 | 'info_dict': { |
136db788 S |
89 | 'id': '114408', |
90 | 'ext': 'mp4', | |
a7c26e73 PH |
91 | 'title': 'Using the exercise files', |
92 | 'duration': 68 | |
c7f8537d | 93 | } |
a0d64613 S |
94 | }, { |
95 | 'url': 'https://www.lynda.com/player/embed/133770?tr=foo=1;bar=g;fizz=rt&fs=0', | |
96 | 'only_matching': True, | |
97 | }] | |
7ee40b5d | 98 | |
c7f8537d | 99 | def _real_extract(self, url): |
30cbd4e0 | 100 | video_id = self._match_id(url) |
c7f8537d | 101 | |
30cbd4e0 S |
102 | page = self._download_webpage( |
103 | 'http://www.lynda.com/ajax/player?videoId=%s&type=video' % video_id, | |
104 | video_id, 'Downloading video JSON') | |
c7f8537d | 105 | video_json = json.loads(page) |
106 | ||
7ee40b5d | 107 | if 'Status' in video_json: |
30cbd4e0 S |
108 | raise ExtractorError( |
109 | 'lynda returned error: %s' % video_json['Message'], expected=True) | |
c7f8537d | 110 | |
a7c26e73 | 111 | if video_json['HasAccess'] is False: |
136db788 | 112 | raise ExtractorError( |
30cbd4e0 S |
113 | 'Video %s is only available for members. ' |
114 | % video_id + self._ACCOUNT_CREDENTIALS_HINT, expected=True) | |
c7f8537d | 115 | |
136db788 | 116 | video_id = compat_str(video_json['ID']) |
a7c26e73 PH |
117 | duration = video_json['DurationInSeconds'] |
118 | title = video_json['Title'] | |
c7f8537d | 119 | |
16ff7ebc S |
120 | formats = [] |
121 | ||
122 | fmts = video_json.get('Formats') | |
123 | if fmts: | |
124 | formats.extend([ | |
125 | { | |
126 | 'url': fmt['Url'], | |
a7c26e73 PH |
127 | 'ext': fmt['Extension'], |
128 | 'width': fmt['Width'], | |
129 | 'height': fmt['Height'], | |
130 | 'filesize': fmt['FileSize'], | |
62bcfa8c | 131 | 'format_id': str(fmt['Resolution']) |
16ff7ebc S |
132 | } for fmt in fmts]) |
133 | ||
134 | prioritized_streams = video_json.get('PrioritizedStreams') | |
135 | if prioritized_streams: | |
136 | formats.extend([ | |
137 | { | |
138 | 'url': video_url, | |
139 | 'width': int_or_none(format_id), | |
140 | 'format_id': format_id, | |
141 | } for format_id, video_url in prioritized_streams['0'].items() | |
142 | ]) | |
c7f8537d | 143 | |
a57e8ce6 | 144 | self._check_formats(formats, video_id) |
c7f8537d | 145 | self._sort_formats(formats) |
7ee40b5d | 146 | |
311c3938 | 147 | subtitles = self.extract_subtitles(video_id, page) |
7ee40b5d | 148 | |
c7f8537d | 149 | return { |
150 | 'id': video_id, | |
151 | 'title': title, | |
152 | 'duration': duration, | |
62bcfa8c | 153 | 'subtitles': subtitles, |
c7f8537d | 154 | 'formats': formats |
155 | } | |
7ee40b5d | 156 | |
311c3938 JMF |
157 | def _fix_subtitles(self, subs): |
158 | srt = '' | |
7594be85 | 159 | seq_counter = 0 |
311c3938 JMF |
160 | for pos in range(0, len(subs) - 1): |
161 | seq_current = subs[pos] | |
162 | m_current = re.match(self._TIMECODE_REGEX, seq_current['Timecode']) | |
163 | if m_current is None: | |
164 | continue | |
165 | seq_next = subs[pos + 1] | |
166 | m_next = re.match(self._TIMECODE_REGEX, seq_next['Timecode']) | |
167 | if m_next is None: | |
62bcfa8c | 168 | continue |
311c3938 JMF |
169 | appear_time = m_current.group('timecode') |
170 | disappear_time = m_next.group('timecode') | |
7594be85 S |
171 | text = seq_current['Caption'].strip() |
172 | if text: | |
173 | seq_counter += 1 | |
174 | srt += '%s\r\n%s --> %s\r\n%s\r\n\r\n' % (seq_counter, appear_time, disappear_time, text) | |
311c3938 JMF |
175 | if srt: |
176 | return srt | |
177 | ||
178 | def _get_subtitles(self, video_id, webpage): | |
62bcfa8c | 179 | url = 'http://www.lynda.com/ajax/player?videoId=%s&type=transcript' % video_id |
311c3938 JMF |
180 | subs = self._download_json(url, None, False) |
181 | if subs: | |
182 | return {'en': [{'ext': 'srt', 'data': self._fix_subtitles(subs)}]} | |
183 | else: | |
184 | return {} | |
c7f8537d | 185 | |
186 | ||
30cbd4e0 | 187 | class LyndaCourseIE(LyndaBaseIE): |
a7c26e73 PH |
188 | IE_NAME = 'lynda:course' |
189 | IE_DESC = 'lynda.com online courses' | |
c7f8537d | 190 | |
191 | # Course link equals to welcome/introduction video link of same course | |
192 | # We will recognize it as course link | |
193 | _VALID_URL = r'https?://(?:www|m)\.lynda\.com/(?P<coursepath>[^/]+/[^/]+/(?P<courseid>\d+))-\d\.html' | |
194 | ||
195 | def _real_extract(self, url): | |
196 | mobj = re.match(self._VALID_URL, url) | |
197 | course_path = mobj.group('coursepath') | |
198 | course_id = mobj.group('courseid') | |
5f6a1245 | 199 | |
30cbd4e0 S |
200 | page = self._download_webpage( |
201 | 'http://www.lynda.com/ajax/player?courseId=%s&type=course' % course_id, | |
202 | course_id, 'Downloading course JSON') | |
c7f8537d | 203 | course_json = json.loads(page) |
204 | ||
a7c26e73 | 205 | if 'Status' in course_json and course_json['Status'] == 'NotFound': |
30cbd4e0 S |
206 | raise ExtractorError( |
207 | 'Course %s does not exist' % course_id, expected=True) | |
c7f8537d | 208 | |
209 | unaccessible_videos = 0 | |
210 | videos = [] | |
211 | ||
16ff7ebc S |
212 | # Might want to extract videos right here from video['Formats'] as it seems 'Formats' is not provided |
213 | # by single video API anymore | |
214 | ||
a7c26e73 PH |
215 | for chapter in course_json['Chapters']: |
216 | for video in chapter['Videos']: | |
30cbd4e0 | 217 | if video['HasAccess'] is False: |
c7f8537d | 218 | unaccessible_videos += 1 |
219 | continue | |
a7c26e73 | 220 | videos.append(video['ID']) |
c7f8537d | 221 | |
222 | if unaccessible_videos > 0: | |
30cbd4e0 S |
223 | self._downloader.report_warning( |
224 | '%s videos are only available for members (or paid members) and will not be downloaded. ' | |
225 | % unaccessible_videos + self._ACCOUNT_CREDENTIALS_HINT) | |
c7f8537d | 226 | |
a7c26e73 | 227 | entries = [ |
30cbd4e0 S |
228 | self.url_result( |
229 | 'http://www.lynda.com/%s/%s-4.html' % (course_path, video_id), | |
230 | 'Lynda') | |
a7c26e73 | 231 | for video_id in videos] |
c7f8537d | 232 | |
a7c26e73 | 233 | course_title = course_json['Title'] |
c7f8537d | 234 | |
5f6a1245 | 235 | return self.playlist_result(entries, course_id, course_title) |