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;
38 * Returns the user id of locally logged in user or false.
40 * @return int|bool user id or false
42 public static function getLocalUser()
44 $session = DI::session();
46 if (!empty($session->get('authenticated')) && !empty($session->get('uid'))) {
47 return intval($session->get('uid'));
54 * Returns the public contact id of logged in user or false.
56 * @return int|bool public contact id or false
58 public static function getPublicContact()
60 static $public_contact_id = false;
62 $session = DI::session();
64 if (!$public_contact_id && !empty($session->get('authenticated'))) {
65 if (!empty($session->get('my_address'))) {
67 $public_contact_id = intval(Contact::getIdForURL($session->get('my_address'), 0, false));
68 } elseif (!empty($session->get('visitor_home'))) {
70 $public_contact_id = intval(Contact::getIdForURL($session->get('visitor_home'), 0, false));
72 } elseif (empty($session->get('authenticated'))) {
73 $public_contact_id = false;
76 return $public_contact_id;
80 * Returns public contact id of authenticated site visitor or false
82 * @return int|bool visitor_id or false
84 public static function getRemoteUser()
86 $session = DI::session();
88 if (empty($session->get('authenticated'))) {
92 if (!empty($session->get('visitor_id'))) {
93 return intval($session->get('visitor_id'));
100 * Return the user contact ID of a visitor for the given user ID they are visiting
102 * @param integer $uid User ID
105 public static function getRemoteContactID($uid)
107 $session = DI::session();
109 if (!empty($session->get('remote')[$uid])) {
110 $remote = $session->get('remote')[$uid];
115 $local_user = !empty($session->get('authenticated')) ? $session->get('uid') : 0;
117 if (empty($remote) && ($local_user != $uid) && !empty($my_address = $session->get('my_address'))) {
118 $remote = Contact::getIdForURL($my_address, $uid, false);
125 * Returns User ID for given contact ID of the visitor
127 * @param integer $cid Contact ID
128 * @return integer User ID for given contact ID of the visitor
130 public static function getUserIDForVisitorContactID($cid)
132 $session = DI::session();
134 if (empty($session->get('remote'))) {
138 return array_search($cid, $session->get('remote'));
142 * Set the session variable that contains the contact IDs for the visitor's contact URL
144 * @param string $url Contact URL
146 public static function setVisitorsContacts()
148 $session = DI::session();
150 $session->set('remote', []);
153 $remote_contacts = DBA::select('contact', ['id', 'uid'], ['nurl' => Strings::normaliseLink($session->get('my_url')), 'rel' => [Contact::FOLLOWER, Contact::FRIEND], 'self' => false]);
154 while ($contact = DBA::fetch($remote_contacts)) {
155 if (($contact['uid'] == 0) || Contact\User::isBlocked($contact['id'], $contact['uid'])) {
158 $remote[$contact['uid']] = $contact['id'];
160 DBA::close($remote_contacts);
161 $session->set('remote', $remote);
165 * Returns if the current visitor is authenticated
167 * @return boolean "true" when visitor is either a local or remote user
169 public static function isAuthenticated()
171 $session = DI::session();
173 return $session->get('authenticated', false);