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