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')) {
29 class OStatusInitAction extends Action
38 protected function prepare(array $args=array())
40 parent::prepare($args);
42 if (common_logged_in()) {
43 // TRANS: Client error.
44 $this->clientError(_m('You can use the local subscription!'));
47 // Local user or group the remote wants to subscribe to
48 $this->nickname = $this->trimmed('nickname');
49 $this->tagger = $this->trimmed('tagger');
50 $this->peopletag = $this->trimmed('peopletag');
51 $this->group = $this->trimmed('group');
53 // Webfinger or profile URL of the remote user
54 $this->profile = $this->trimmed('profile');
59 protected function handle()
63 if ($_SERVER['REQUEST_METHOD'] == 'POST') {
64 /* Use a session token for CSRF protection. */
65 $token = $this->trimmed('token');
66 if (!$token || $token != common_session_token()) {
67 // TRANS: Client error displayed when the session token does not match or is not given.
68 $this->showForm(_m('There was a problem with your session token. '.
69 'Try again, please.'));
72 $this->ostatusConnect();
78 function showForm($err = null)
81 if ($this->boolean('ajax')) {
82 $this->startHTML('text/xml;charset=utf-8');
83 $this->elementStart('head');
85 $this->element('title', null, _m('TITLE','Subscribe to user'));
86 $this->elementEnd('head');
87 $this->elementStart('body');
89 $this->elementEnd('body');
96 function showContent()
100 // TRANS: Form legend. %s is a group name.
101 $header = sprintf(_m('Join group %s'), $this->group);
102 // TRANS: Button text to join a group.
103 $submit = _m('BUTTON','Join');
104 } else if ($this->peopletag && $this->tagger) {
105 // TRANS: Form legend. %1$s is a list, %2$s is a lister's name.
106 $header = sprintf(_m('Subscribe to list %1$s by %2$s'), $this->peopletag, $this->tagger);
107 // TRANS: Button text to subscribe to a list.
108 $submit = _m('BUTTON','Subscribe');
109 // TRANS: Button text.
111 // TRANS: Form legend. %s is a nickname.
112 $header = sprintf(_m('Subscribe to %s'), $this->nickname);
113 // TRANS: Button text to subscribe to a profile.
114 $submit = _m('BUTTON','Subscribe');
116 $this->elementStart('form', array('id' => 'form_ostatus_connect',
118 'class' => 'form_settings',
119 'action' => common_local_url('ostatusinit')));
120 $this->elementStart('fieldset');
121 $this->element('legend', null, $header);
122 $this->hidden('token', common_session_token());
124 $this->elementStart('ul', 'form_data');
125 $this->elementStart('li', array('id' => 'ostatus_nickname'));
128 // TRANS: Field label.
129 $this->input('group', _m('Group nickname'), $this->group,
130 // TRANS: Field title.
131 _m('Nickname of the group you want to join.'));
133 // TRANS: Field label.
134 $this->input('nickname', _m('User nickname'), $this->nickname,
135 // TRANS: Field title.
136 _m('Nickname of the user you want to follow.'));
137 $this->hidden('tagger', $this->tagger);
138 $this->hidden('peopletag', $this->peopletag);
141 $this->elementEnd('li');
142 $this->elementStart('li', array('id' => 'ostatus_profile'));
143 // TRANS: Field label.
144 $this->input('profile', _m('Profile Account'), $this->profile,
145 // TRANS: Tooltip for field label "Profile Account".
146 _m('Your account ID (e.g. user@example.com).'));
147 $this->elementEnd('li');
148 $this->elementEnd('ul');
149 $this->submit('submit', $submit);
150 $this->elementEnd('fieldset');
151 $this->elementEnd('form');
154 function ostatusConnect()
156 $opts = array('allowed_schemes' => array('http', 'https', 'acct'));
157 if (Validate::uri($this->profile, $opts)) {
158 $bits = parse_url($this->profile);
159 if ($bits['scheme'] == 'acct') {
160 $this->connectWebfinger($bits['path']);
162 $this->connectProfile($this->profile);
164 } elseif (strpos($this->profile, '@') !== false) {
165 $this->connectWebfinger($this->profile);
167 // TRANS: Client error.
168 $this->clientError(_m('Must provide a remote profile.'));
172 function connectWebfinger($acct)
174 $target_profile = $this->targetProfile();
176 $disco = new Discovery;
177 $xrd = $disco->lookup($acct);
179 $link = $xrd->get('http://ostatus.org/schema/1.0/subscribe');
180 if (!is_null($link)) {
181 // We found a URL - let's redirect!
182 if (!empty($link->template)) {
183 $url = Discovery::applyTemplate($link->template, $target_profile);
187 common_log(LOG_INFO, "Sending remote subscriber $acct to $url");
188 common_redirect($url, 303);
190 // TRANS: Client error.
191 $this->clientError(_m('Could not confirm remote profile address.'));
194 function connectProfile($subscriber_profile)
196 $target_profile = $this->targetProfile();
198 // @fixme hack hack! We should look up the remote sub URL from XRDS
199 $suburl = preg_replace('!^(.*)/(.*?)$!', '$1/main/ostatussub', $subscriber_profile);
200 $suburl .= '?profile=' . urlencode($target_profile);
202 common_log(LOG_INFO, "Sending remote subscriber $subscriber_profile to $suburl");
203 common_redirect($suburl, 303);
207 * Build the canonical profile URI+URL of the requested user or group
209 function targetProfile()
211 if ($this->nickname) {
212 $user = User::getKV('nickname', $this->nickname);
214 return common_local_url('userbyid', array('id' => $user->id));
216 // TRANS: Client error.
217 $this->clientError(_m('No such user.'));
219 } else if ($this->group) {
220 $group = Local_group::getKV('nickname', $this->group);
221 if ($group instanceof Local_group) {
222 return common_local_url('groupbyid', array('id' => $group->group_id));
224 // TRANS: Client error.
225 $this->clientError(_m('No such group.'));
227 } else if ($this->peopletag && $this->tagger) {
228 $user = User::getKV('nickname', $this->tagger);
230 // TRANS: Client error.
231 $this->clientError(_m('No such user.'));
234 $peopletag = Profile_list::getByTaggerAndTag($user->id, $this->peopletag);
236 return common_local_url('profiletagbyid',
237 array('tagger_id' => $user->id, 'id' => $peopletag->id));
239 // TRANS: Client error.
240 $this->clientError(_m('No such list.'));
242 // TRANS: Client error.
243 $this->clientError(_m('No local user or group nickname provided.'));
249 // TRANS: Page title.
250 return _m('OStatus Connect');