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[youtubedl] / youtube_dl / extractor / safari.py
1 # encoding: utf-8
2 from __future__ import unicode_literals
3
4 import re
5
6 from .common import InfoExtractor
7 from .brightcove import BrightcoveLegacyIE
8
9 from ..compat import compat_urllib_parse
10 from ..utils import (
11 ExtractorError,
12 sanitized_Request,
13 smuggle_url,
14 std_headers,
15 )
16
17
18 class SafariBaseIE(InfoExtractor):
19 _LOGIN_URL = 'https://www.safaribooksonline.com/accounts/login/'
20 _SUCCESSFUL_LOGIN_REGEX = r'<a href="/accounts/logout/"[^>]*>Sign Out</a>'
21 _NETRC_MACHINE = 'safari'
22
23 _API_BASE = 'https://www.safaribooksonline.com/api/v1/book'
24 _API_FORMAT = 'json'
25
26 LOGGED_IN = False
27
28 def _real_initialize(self):
29 # We only need to log in once for courses or individual videos
30 if not self.LOGGED_IN:
31 self._login()
32 SafariBaseIE.LOGGED_IN = True
33
34 def _login(self):
35 (username, password) = self._get_login_info()
36 if username is None:
37 self.raise_login_required('safaribooksonline.com account is required')
38
39 headers = std_headers
40 if 'Referer' not in headers:
41 headers['Referer'] = self._LOGIN_URL
42
43 login_page = self._download_webpage(
44 self._LOGIN_URL, None,
45 'Downloading login form')
46
47 csrf = self._html_search_regex(
48 r"name='csrfmiddlewaretoken'\s+value='([^']+)'",
49 login_page, 'csrf token')
50
51 login_form = {
52 'csrfmiddlewaretoken': csrf,
53 'email': username,
54 'password1': password,
55 'login': 'Sign In',
56 'next': '',
57 }
58
59 request = sanitized_Request(
60 self._LOGIN_URL, compat_urllib_parse.urlencode(login_form), headers=headers)
61 login_page = self._download_webpage(
62 request, None, 'Logging in as %s' % username)
63
64 if re.search(self._SUCCESSFUL_LOGIN_REGEX, login_page) is None:
65 raise ExtractorError(
66 'Login failed; make sure your credentials are correct and try again.',
67 expected=True)
68
69 self.to_screen('Login successful')
70
71
72 class SafariIE(SafariBaseIE):
73 IE_NAME = 'safari'
74 IE_DESC = 'safaribooksonline.com online video'
75 _VALID_URL = r'''(?x)https?://
76 (?:www\.)?safaribooksonline\.com/
77 (?:
78 library/view/[^/]+|
79 api/v1/book
80 )/
81 (?P<course_id>[^/]+)/
82 (?:chapter(?:-content)?/)?
83 (?P<part>part\d+)\.html
84 '''
85
86 _TESTS = [{
87 'url': 'https://www.safaribooksonline.com/library/view/hadoop-fundamentals-livelessons/9780133392838/part00.html',
88 'md5': '5b0c4cc1b3c1ba15dda7344085aa5592',
89 'info_dict': {
90 'id': '2842601850001',
91 'ext': 'mp4',
92 'title': 'Introduction',
93 },
94 'skip': 'Requires safaribooksonline account credentials',
95 }, {
96 'url': 'https://www.safaribooksonline.com/api/v1/book/9780133392838/chapter/part00.html',
97 'only_matching': True,
98 }, {
99 # non-digits in course id
100 'url': 'https://www.safaribooksonline.com/library/view/create-a-nodejs/100000006A0210/part00.html',
101 'only_matching': True,
102 }]
103
104 def _real_extract(self, url):
105 mobj = re.match(self._VALID_URL, url)
106 course_id = mobj.group('course_id')
107 part = mobj.group('part')
108
109 webpage = self._download_webpage(
110 '%s/%s/chapter-content/%s.html' % (self._API_BASE, course_id, part),
111 part)
112
113 bc_url = BrightcoveLegacyIE._extract_brightcove_url(webpage)
114 if not bc_url:
115 raise ExtractorError('Could not extract Brightcove URL from %s' % url, expected=True)
116
117 return self.url_result(smuggle_url(bc_url, {'Referer': url}), 'BrightcoveLegacy')
118
119
120 class SafariCourseIE(SafariBaseIE):
121 IE_NAME = 'safari:course'
122 IE_DESC = 'safaribooksonline.com online courses'
123
124 _VALID_URL = r'https?://(?:www\.)?safaribooksonline\.com/(?:library/view/[^/]+|api/v1/book)/(?P<id>[^/]+)/?(?:[#?]|$)'
125
126 _TESTS = [{
127 'url': 'https://www.safaribooksonline.com/library/view/hadoop-fundamentals-livelessons/9780133392838/',
128 'info_dict': {
129 'id': '9780133392838',
130 'title': 'Hadoop Fundamentals LiveLessons',
131 },
132 'playlist_count': 22,
133 'skip': 'Requires safaribooksonline account credentials',
134 }, {
135 'url': 'https://www.safaribooksonline.com/api/v1/book/9781449396459/?override_format=json',
136 'only_matching': True,
137 }]
138
139 def _real_extract(self, url):
140 course_id = self._match_id(url)
141
142 course_json = self._download_json(
143 '%s/%s/?override_format=%s' % (self._API_BASE, course_id, self._API_FORMAT),
144 course_id, 'Downloading course JSON')
145
146 if 'chapters' not in course_json:
147 raise ExtractorError(
148 'No chapters found for course %s' % course_id, expected=True)
149
150 entries = [
151 self.url_result(chapter, 'Safari')
152 for chapter in course_json['chapters']]
153
154 course_title = course_json['title']
155
156 return self.playlist_result(entries, course_id, course_title)