3 * @copyright Copyright (C) 2010-2022, the Friendica project
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\Core;
24 use Friendica\Database\DBA;
26 use Friendica\Model\Contact;
27 use Friendica\Util\Strings;
30 * High-level Session service class
34 public static $exists = false;
35 public static $expire = 180000;
37 public static function exists($name)
39 return DI::session()->exists($name);
42 public static function get($name, $defaults = null)
44 return DI::session()->get($name, $defaults);
47 public static function pop($name, $defaults = null)
49 return DI::session()->pop($name, $defaults);
52 public static function set($name, $value)
54 DI::session()->set($name, $value);
57 public static function setMultiple(array $values)
59 DI::session()->setMultiple($values);
62 public static function remove($name)
64 DI::session()->remove($name);
67 public static function clear()
69 DI::session()->clear();
73 * Returns the user id of locally logged in user or false.
75 * @return int|bool user id or false
77 public static function getLocalUser()
79 $session = DI::session();
81 if (!empty($session->get('authenticated')) && !empty($session->get('uid'))) {
82 return intval($session->get('uid'));
89 * Returns the public contact id of logged in user or false.
91 * @return int|bool public contact id or false
93 public static function getPublicContact()
95 static $public_contact_id = false;
97 $session = DI::session();
99 if (!$public_contact_id && !empty($session->get('authenticated'))) {
100 if (!empty($session->get('my_address'))) {
102 $public_contact_id = intval(Contact::getIdForURL($session->get('my_address'), 0, false));
103 } elseif (!empty($session->get('visitor_home'))) {
105 $public_contact_id = intval(Contact::getIdForURL($session->get('visitor_home'), 0, false));
107 } elseif (empty($session->get('authenticated'))) {
108 $public_contact_id = false;
111 return $public_contact_id;
115 * Returns public contact id of authenticated site visitor or false
117 * @return int|bool visitor_id or false
119 public static function getRemoteUser()
121 $session = DI::session();
123 if (empty($session->get('authenticated'))) {
127 if (!empty($session->get('visitor_id'))) {
128 return intval($session->get('visitor_id'));
135 * Return the user contact ID of a visitor for the given user ID they are visiting
137 * @param integer $uid User ID
140 public static function getRemoteContactID($uid)
142 $session = DI::session();
144 if (!empty($session->get('remote')[$uid])) {
145 $remote = $session->get('remote')[$uid];
150 $local_user = !empty($session->get('authenticated')) ? $session->get('uid') : 0;
152 if (empty($remote) && ($local_user != $uid) && !empty($my_address = $session->get('my_address'))) {
153 $remote = Contact::getIdForURL($my_address, $uid, false);
160 * Returns User ID for given contact ID of the visitor
162 * @param integer $cid Contact ID
163 * @return integer User ID for given contact ID of the visitor
165 public static function getUserIDForVisitorContactID($cid)
167 $session = DI::session();
169 if (empty($session->get('remote'))) {
173 return array_search($cid, $session->get('remote'));
177 * Set the session variable that contains the contact IDs for the visitor's contact URL
179 * @param string $url Contact URL
181 public static function setVisitorsContacts()
183 $session = DI::session();
185 $session->set('remote', []);
188 $remote_contacts = DBA::select('contact', ['id', 'uid'], ['nurl' => Strings::normaliseLink($session->get('my_url')), 'rel' => [Contact::FOLLOWER, Contact::FRIEND], 'self' => false]);
189 while ($contact = DBA::fetch($remote_contacts)) {
190 if (($contact['uid'] == 0) || Contact\User::isBlocked($contact['id'], $contact['uid'])) {
193 $remote[$contact['uid']] = $contact['id'];
195 DBA::close($remote_contacts);
196 $session->set('remote', $remote);
200 * Returns if the current visitor is authenticated
202 * @return boolean "true" when visitor is either a local or remote user
204 public static function isAuthenticated()
206 $session = DI::session();
208 return $session->get('authenticated', false);