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/>.
20 * Friendica is a communications platform for integrated social communications
21 * utilising decentralised communications and linkage to several indie social
22 * projects - as well as popular mainstream providers.
24 * Our mission is to free our friends and families from the clutches of
25 * data-harvesting corporations, and pave the way to a future where social
26 * communications are free and open and flow between alternate providers as
27 * easily as email does today.
30 use Friendica\Model\Contact;
33 * Constant with a HTML line break.
35 * Contains a HTML line break (br) element and a real carriage return with line
36 * feed for the source.
37 * This can be used in HTML and JavaScript where needed a line break.
39 define('EOL', "<br />\r\n");
44 * Item weight for query ordering
47 define('GRAVITY_PARENT', 0);
48 define('GRAVITY_ACTIVITY', 3);
49 define('GRAVITY_COMMENT', 6);
50 define('GRAVITY_UNKNOWN', 9);
53 // Normally this constant is defined - but not if "pcntl" isn't installed
54 if (!defined('SIGTERM')) {
55 define('SIGTERM', 15);
59 * Depending on the PHP version this constant does exist - or not.
60 * See here: http://php.net/manual/en/curl.constants.php#117928
62 if (!defined('CURLE_OPERATION_TIMEDOUT')) {
63 define('CURLE_OPERATION_TIMEDOUT', CURLE_OPERATION_TIMEOUTED);
66 if (!function_exists('exif_imagetype')) {
67 function exif_imagetype($file)
69 $size = getimagesize($file);
75 * Returns the user id of locally logged in user or false.
77 * @return int|bool user id or false
81 if (!empty($_SESSION['authenticated']) && !empty($_SESSION['uid'])) {
82 return intval($_SESSION['uid']);
89 * Returns the public contact id of logged in user or false.
91 * @return int|bool public contact id or false
93 function public_contact()
95 static $public_contact_id = false;
97 if (!$public_contact_id && !empty($_SESSION['authenticated'])) {
98 if (!empty($_SESSION['my_address'])) {
100 $public_contact_id = intval(Contact::getIdForURL($_SESSION['my_address'], 0, false));
101 } elseif (!empty($_SESSION['visitor_home'])) {
103 $public_contact_id = intval(Contact::getIdForURL($_SESSION['visitor_home'], 0, false));
105 } elseif (empty($_SESSION['authenticated'])) {
106 $public_contact_id = false;
109 return $public_contact_id;
113 * Returns public contact id of authenticated site visitor or false
115 * @return int|bool visitor_id or false
117 function remote_user()
119 if (empty($_SESSION['authenticated'])) {
123 if (!empty($_SESSION['visitor_id'])) {
124 return intval($_SESSION['visitor_id']);