1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
<?php
/*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2010, StatusNet, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @package OStatusPlugin
* @maintainer James Walker <james@status.net>
*/
if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
class OStatusInitAction extends Action
{
var $nickname;
var $group;
var $profile;
var $err;
function prepare($args)
{
parent::prepare($args);
if (common_logged_in()) {
$this->clientError(_m('You can use the local subscription!'));
return false;
}
// Local user or group the remote wants to subscribe to
$this->nickname = $this->trimmed('nickname');
$this->group = $this->trimmed('group');
// Webfinger or profile URL of the remote user
$this->profile = $this->trimmed('profile');
return true;
}
function handle($args)
{
parent::handle($args);
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
/* Use a session token for CSRF protection. */
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
$this->showForm(_m('There was a problem with your session token. '.
'Try again, please.'));
return;
}
$this->ostatusConnect();
} else {
$this->showForm();
}
}
function showForm($err = null)
{
$this->err = $err;
if ($this->boolean('ajax')) {
header('Content-Type: text/xml;charset=utf-8');
$this->xw->startDocument('1.0', 'UTF-8');
$this->elementStart('html');
$this->elementStart('head');
$this->element('title', null, _m('Subscribe to user'));
$this->elementEnd('head');
$this->elementStart('body');
$this->showContent();
$this->elementEnd('body');
$this->elementEnd('html');
} else {
$this->showPage();
}
}
function showContent()
{
if ($this->group) {
$header = sprintf(_m('Join group %s'), $this->group);
$submit = _m('Join');
} else {
$header = sprintf(_m('Subscribe to %s'), $this->nickname);
$submit = _m('Subscribe');
}
$this->elementStart('form', array('id' => 'form_ostatus_connect',
'method' => 'post',
'class' => 'form_settings',
'action' => common_local_url('ostatusinit')));
$this->elementStart('fieldset');
$this->element('legend', null, $header);
$this->hidden('token', common_session_token());
$this->elementStart('ul', 'form_data');
$this->elementStart('li', array('id' => 'ostatus_nickname'));
$this->input('nickname', _m('User nickname'), $this->nickname,
_m('Nickname of the user you want to follow'));
$this->hidden('group', $this->group); // pass-through for magic links
$this->elementEnd('li');
$this->elementStart('li', array('id' => 'ostatus_profile'));
$this->input('profile', _m('Profile Account'), $this->profile,
_m('Your account id (i.e. user@identi.ca)'));
$this->elementEnd('li');
$this->elementEnd('ul');
$this->submit('submit', $submit);
$this->elementEnd('fieldset');
$this->elementEnd('form');
}
function ostatusConnect()
{
$opts = array('allowed_schemes' => array('http', 'https', 'acct'));
if (Validate::uri($this->profile, $opts)) {
$bits = parse_url($this->profile);
if ($bits['scheme'] == 'acct') {
$this->connectWebfinger($bits['path']);
} else {
$this->connectProfile($this->profile);
}
} elseif (strpos($this->profile, '@') !== false) {
$this->connectWebfinger($this->profile);
} else {
$this->clientError(_m("Must provide a remote profile."));
}
}
function connectWebfinger($acct)
{
$target_profile = $this->targetProfile();
$disco = new Discovery;
$result = $disco->lookup($acct);
if (!$result) {
$this->clientError(_m("Couldn't look up OStatus account profile."));
}
foreach ($result->links as $link) {
if ($link['rel'] == 'http://ostatus.org/schema/1.0/subscribe') {
// We found a URL - let's redirect!
$url = Discovery::applyTemplate($link['template'], $target_profile);
common_log(LOG_INFO, "Sending remote subscriber $acct to $url");
common_redirect($url, 303);
}
}
$this->clientError(_m("Couldn't confirm remote profile address."));
}
function connectProfile($subscriber_profile)
{
$target_profile = $this->targetProfile();
// @fixme hack hack! We should look up the remote sub URL from XRDS
$suburl = preg_replace('!^(.*)/(.*?)$!', '$1/main/ostatussub', $subscriber_profile);
$suburl .= '?profile=' . urlencode($target_profile);
common_log(LOG_INFO, "Sending remote subscriber $subscriber_profile to $suburl");
common_redirect($suburl, 303);
}
/**
* Build the canonical profile URI+URL of the requested user or group
*/
function targetProfile()
{
if ($this->nickname) {
$user = User::staticGet('nickname', $this->nickname);
if ($user) {
return common_local_url('userbyid', array('id' => $user->id));
} else {
$this->clientError("No such user.");
}
} else if ($this->group) {
$group = Local_group::staticGet('nickname', $this->group);
if ($group) {
return common_local_url('groupbyid', array('id' => $group->group_id));
} else {
$this->clientError("No such group.");
}
} else {
$this->clientError("No local user or group nickname provided.");
}
}
function title()
{
return _m('OStatus Connect');
}
}
|
