3 * StatusNet - the distributed open-source microblogging tool
4 * Copyright (C) 2010, StatusNet, Inc.
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU Affero General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Affero General Public License for more details.
16 * You should have received a copy of the GNU Affero General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 * @package OStatusPlugin
22 * @maintainer James Walker <james@status.net>
25 if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
28 class OStatusInitAction extends Action
36 function prepare($args)
38 parent::prepare($args);
40 if (common_logged_in()) {
41 $this->clientError(_m('You can use the local subscription!'));
45 // Local user or group the remote wants to subscribe to
46 $this->nickname = $this->trimmed('nickname');
47 $this->group = $this->trimmed('group');
49 // Webfinger or profile URL of the remote user
50 $this->profile = $this->trimmed('profile');
55 function handle($args)
57 parent::handle($args);
59 if ($_SERVER['REQUEST_METHOD'] == 'POST') {
60 /* Use a session token for CSRF protection. */
61 $token = $this->trimmed('token');
62 if (!$token || $token != common_session_token()) {
63 $this->showForm(_m('There was a problem with your session token. '.
64 'Try again, please.'));
67 $this->ostatusConnect();
73 function showForm($err = null)
76 if ($this->boolean('ajax')) {
77 header('Content-Type: text/xml;charset=utf-8');
78 $this->xw->startDocument('1.0', 'UTF-8');
79 $this->elementStart('html');
80 $this->elementStart('head');
81 $this->element('title', null, _m('Subscribe to user'));
82 $this->elementEnd('head');
83 $this->elementStart('body');
85 $this->elementEnd('body');
86 $this->elementEnd('html');
92 function showContent()
95 $this->clientError(_m("With GNU social, users do not use one server to communicate in the way that Facebook and Twitter users do. Instead, users are spread out over a network of servers and different sites. You can run your own server, or you can sign up for one of the public servers — it doesn't even need to be a GNU social server — any server that speaks the OStatus protocol is suitable. A good place to get an account for yourself is www.status.net"));
98 $header = sprintf(_m('Join group %s'), $this->group);
101 $header = sprintf(_m('Subscribe to %s'), $this->nickname);
102 $submit = _m('Subscribe');
104 $this->elementStart('form', array('id' => 'form_ostatus_connect',
106 'class' => 'form_settings',
107 'action' => common_local_url('ostatusinit')));
108 $this->elementStart('fieldset');
109 $this->element('legend', null, $header);
110 $this->hidden('token', common_session_token());
112 $this->elementStart('ul', 'form_data');
113 $this->elementStart('li', array('id' => 'ostatus_nickname'));
114 $this->input('nickname', _m('User nickname'), $this->nickname,
115 _m('Nickname of the user you want to follow'));
116 $this->hidden('group', $this->group); // pass-through for magic links
117 $this->elementEnd('li');
118 $this->elementStart('li', array('id' => 'ostatus_profile'));
119 $this->input('profile', _m('Profile Account'), $this->profile,
120 _m('Your account id (i.e. user@identi.ca)'));
121 $this->elementEnd('li');
122 $this->elementEnd('ul');
123 $this->submit('submit', $submit);
124 $this->elementEnd('fieldset');
125 $this->elementEnd('form');
128 function ostatusConnect()
130 $opts = array('allowed_schemes' => array('http', 'https', 'acct'));
131 if (Validate::uri($this->profile, $opts)) {
132 $bits = parse_url($this->profile);
133 if ($bits['scheme'] == 'acct') {
134 $this->connectWebfinger($bits['path']);
136 $this->connectProfile($this->profile);
138 } elseif (strpos($this->profile, '@') !== false) {
139 $this->connectWebfinger($this->profile);
141 $this->clientError(_m("Must provide a remote profile."));
145 function connectWebfinger($acct)
147 $target_profile = $this->targetProfile();
149 $disco = new Discovery;
150 $result = $disco->lookup($acct);
152 $this->clientError(_m("Couldn't look up OStatus account profile."));
155 foreach ($result->links as $link) {
156 if ($link['rel'] == 'http://ostatus.org/schema/1.0/subscribe') {
157 // We found a URL - let's redirect!
158 $url = Discovery::applyTemplate($link['template'], $target_profile);
159 common_log(LOG_INFO, "Sending remote subscriber $acct to $url");
160 common_redirect($url, 303);
164 $this->clientError(_m("Couldn't confirm remote profile address."));
167 function connectProfile($subscriber_profile)
169 $target_profile = $this->targetProfile();
171 // @fixme hack hack! We should look up the remote sub URL from XRDS
172 $suburl = preg_replace('!^(.*)/(.*?)$!', '$1/main/ostatussub', $subscriber_profile);
173 $suburl .= '?profile=' . urlencode($target_profile);
175 common_log(LOG_INFO, "Sending remote subscriber $subscriber_profile to $suburl");
176 common_redirect($suburl, 303);
180 * Build the canonical profile URI+URL of the requested user or group
182 function targetProfile()
184 if ($this->nickname) {
185 $user = User::staticGet('nickname', $this->nickname);
187 return common_local_url('userbyid', array('id' => $user->id));
189 $this->clientError("No such user.");
191 } else if ($this->group) {
192 $group = Local_group::staticGet('nickname', $this->group);
194 return common_local_url('groupbyid', array('id' => $group->group_id));
196 $this->clientError("No such group.");
199 $this->clientError("No local user or group nickname provided.");
205 return _m('OStatus Connect');