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9c1c6c2a | 1 | # GNU MediaGoblin -- federated, autonomous media hosting |
cf29e8a8 | 2 | # Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS. |
9c1c6c2a JW |
3 | # |
4 | # This program is free software: you can redistribute it and/or modify | |
5 | # it under the terms of the GNU Affero General Public License as published by | |
6 | # the Free Software Foundation, either version 3 of the License, or | |
7 | # (at your option) any later version. | |
8 | # | |
9 | # This program is distributed in the hope that it will be useful, | |
10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | # GNU Affero General Public License for more details. | |
13 | # | |
14 | # You should have received a copy of the GNU Affero General Public License | |
15 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
85c91691 JW |
16 | ''' |
17 | For references, see docstring in mediagoblin/webfinger/__init__.py | |
18 | ''' | |
9c1c6c2a JW |
19 | |
20 | import re | |
9c1c6c2a | 21 | |
c8cb0ee8 | 22 | from urlparse import urlparse |
9c1c6c2a | 23 | |
c8cb0ee8 | 24 | from mediagoblin.tools.response import render_to_response, render_404 |
9c1c6c2a JW |
25 | |
26 | def host_meta(request): | |
27 | ''' | |
28 | Webfinger host-meta | |
29 | ''' | |
c8cb0ee8 JW |
30 | |
31 | placeholder = 'MG_LRDD_PLACEHOLDER' | |
32 | ||
33 | lrdd_title = 'GNU MediaGoblin - User lookup' | |
34 | ||
35 | lrdd_template = request.urlgen( | |
36 | 'mediagoblin.webfinger.xrd', | |
37 | uri=placeholder, | |
38 | qualified=True) | |
39 | ||
9c1c6c2a JW |
40 | return render_to_response( |
41 | request, | |
42 | 'mediagoblin/webfinger/host-meta.xml', | |
43 | {'request': request, | |
c8cb0ee8 JW |
44 | 'lrdd_template': lrdd_template, |
45 | 'lrdd_title': lrdd_title, | |
46 | 'placeholder': placeholder}) | |
47 | ||
48 | MATCH_SCHEME_PATTERN = re.compile(r'^acct:') | |
9c1c6c2a JW |
49 | |
50 | def xrd(request): | |
51 | ''' | |
52 | Find user data based on a webfinger URI | |
53 | ''' | |
c8cb0ee8 JW |
54 | param_uri = request.GET.get('uri') |
55 | ||
56 | if not param_uri: | |
57 | return render_404(request) | |
58 | ||
59 | ''' | |
60 | :py:module:`urlparse` does not recognize usernames in URIs of the | |
61 | form ``acct:user@example.org`` or ``user@example.org``. | |
62 | ''' | |
63 | if not MATCH_SCHEME_PATTERN.search(param_uri): | |
64 | # Assume the URI is in the form ``user@example.org`` | |
65 | uri = 'acct://' + param_uri | |
66 | else: | |
67 | # Assumes the URI looks like ``acct:user@example.org | |
68 | uri = MATCH_SCHEME_PATTERN.sub( | |
69 | 'acct://', param_uri) | |
70 | ||
71 | parsed = urlparse(uri) | |
72 | ||
73 | xrd_subject = param_uri | |
74 | ||
75 | # TODO: Verify that the user exists | |
76 | # Q: Does webfinger support error handling in this case? | |
77 | # Returning 404 seems intuitive, need to check. | |
78 | if parsed.username: | |
79 | # The user object | |
80 | # TODO: Fetch from database instead of using the MockUser | |
81 | user = MockUser() | |
82 | user.username = parsed.username | |
83 | ||
84 | xrd_links = [ | |
85 | {'attrs': { | |
86 | 'rel': 'http://microformats.org/profile/hcard', | |
87 | 'href': request.urlgen( | |
88 | 'mediagoblin.user_pages.user_home', | |
89 | user=user.username, | |
90 | qualified=True)}}, | |
91 | {'attrs': { | |
92 | 'rel': 'http://schemas.google.com/g/2010#updates-from', | |
93 | 'href': request.urlgen( | |
94 | 'mediagoblin.user_pages.atom_feed', | |
95 | user=user.username, | |
96 | qualified=True)}}] | |
97 | ||
98 | xrd_alias = request.urlgen( | |
99 | 'mediagoblin.user_pages.user_home', | |
100 | user=user.username, | |
101 | qualified=True) | |
102 | ||
103 | return render_to_response( | |
104 | request, | |
105 | 'mediagoblin/webfinger/xrd.xml', | |
106 | {'request': request, | |
107 | 'subject': xrd_subject, | |
108 | 'alias': xrd_alias, | |
109 | 'links': xrd_links }) | |
110 | else: | |
111 | return render_404(request) | |
112 | ||
113 | class MockUser(object): | |
114 | ''' | |
115 | TEMPORARY user object | |
116 | ''' | |
117 | username = None |