5 * This file defines some global constants and includes the central App class.
11 * Friendica is a communications platform for integrated social communications
12 * utilising decentralised communications and linkage to several indie social
13 * projects - as well as popular mainstream providers.
15 * Our mission is to free our friends and families from the clutches of
16 * data-harvesting corporations, and pave the way to a future where social
17 * communications are free and open and flow between alternate providers as
18 * easily as email does today.
21 require_once __DIR__ . DIRECTORY_SEPARATOR . 'vendor' . DIRECTORY_SEPARATOR . 'autoload.php';
24 use Friendica\Core\System;
25 use Friendica\Core\Cache;
26 use Friendica\Core\Config;
27 use Friendica\Core\PConfig;
28 use Friendica\Core\Worker;
29 use Friendica\Database\DBM;
30 use Friendica\Object\Contact;
31 use Friendica\Util\Lock;
33 require_once 'include/network.php';
34 require_once 'include/plugin.php';
35 require_once 'include/text.php';
36 require_once 'include/datetime.php';
37 require_once 'include/pgettext.php';
38 require_once 'include/nav.php';
39 require_once 'include/features.php';
40 require_once 'include/identity.php';
41 require_once 'update.php';
42 require_once 'include/dbstructure.php';
44 define('FRIENDICA_PLATFORM', 'Friendica');
45 define('FRIENDICA_CODENAME', 'Asparagus');
46 define('FRIENDICA_VERSION', '3.6-dev');
47 define('DFRN_PROTOCOL_VERSION', '2.23');
48 define('DB_UPDATE_VERSION', 1235);
51 * @brief Constant with a HTML line break.
53 * Contains a HTML line break (br) element and a real carriage return with line
54 * feed for the source.
55 * This can be used in HTML and JavaScript where needed a line break.
57 define('EOL', "<br />\r\n");
58 define('ATOM_TIME', 'Y-m-d\TH:i:s\Z');
61 * @brief Image storage quality.
63 * Lower numbers save space at cost of image detail.
64 * For ease of upgrade, please do not change here. Change jpeg quality with
65 * $a->config['system']['jpeg_quality'] = n;
66 * in .htconfig.php, where n is netween 1 and 100, and with very poor results
69 define('JPEG_QUALITY', 100);
72 * $a->config['system']['png_quality'] from 0 (uncompressed) to 9
74 define('PNG_QUALITY', 8);
77 * An alternate way of limiting picture upload sizes. Specify the maximum pixel
78 * length that pictures are allowed to be (for non-square pictures, it will apply
79 * to the longest side). Pictures longer than this length will be resized to be
80 * this length (on the longest side, the other side will be scaled appropriately).
81 * Modify this value using
83 * $a->config['system']['max_image_length'] = n;
87 * If you don't want to set a maximum length, set to -1. The default value is
88 * defined by 'MAX_IMAGE_LENGTH' below.
90 define('MAX_IMAGE_LENGTH', -1);
95 define('DEFAULT_DB_ENGINE', 'InnoDB');
100 * SSL redirection policies
103 define('SSL_POLICY_NONE', 0);
104 define('SSL_POLICY_FULL', 1);
105 define('SSL_POLICY_SELFSIGN', 2);
114 define('LOGGER_NORMAL', 0);
115 define('LOGGER_TRACE', 1);
116 define('LOGGER_DEBUG', 2);
117 define('LOGGER_DATA', 3);
118 define('LOGGER_ALL', 4);
127 define('CACHE_MONTH', 0);
128 define('CACHE_WEEK', 1);
129 define('CACHE_DAY', 2);
130 define('CACHE_HOUR', 3);
131 define('CACHE_HALF_HOUR', 4);
132 define('CACHE_QUARTER_HOUR', 5);
133 define('CACHE_FIVE_MINUTES', 6);
134 define('CACHE_MINUTE', 7);
140 * Registration policies
143 define('REGISTER_CLOSED', 0);
144 define('REGISTER_APPROVE', 1);
145 define('REGISTER_OPEN', 2);
156 define('CONTACT_IS_FOLLOWER', 1);
157 define('CONTACT_IS_SHARING', 2);
158 define('CONTACT_IS_FRIEND', 3);
166 * DB update return values
169 define('UPDATE_SUCCESS', 0);
170 define('UPDATE_FAILED', 1);
176 * @name page/profile types
178 * PAGE_NORMAL is a typical personal profile account
179 * PAGE_SOAPBOX automatically approves all friend requests as CONTACT_IS_SHARING, (readonly)
180 * PAGE_COMMUNITY automatically approves all friend requests as CONTACT_IS_SHARING, but with
181 * write access to wall and comments (no email and not included in page owner's ACL lists)
182 * PAGE_FREELOVE automatically approves all friend requests as full friends (CONTACT_IS_FRIEND).
186 define('PAGE_NORMAL', 0);
187 define('PAGE_SOAPBOX', 1);
188 define('PAGE_COMMUNITY', 2);
189 define('PAGE_FREELOVE', 3);
190 define('PAGE_BLOG', 4);
191 define('PAGE_PRVGROUP', 5);
197 * @name account types
199 * ACCOUNT_TYPE_PERSON - the account belongs to a person
200 * Associated page types: PAGE_NORMAL, PAGE_SOAPBOX, PAGE_FREELOVE
202 * ACCOUNT_TYPE_ORGANISATION - the account belongs to an organisation
203 * Associated page type: PAGE_SOAPBOX
205 * ACCOUNT_TYPE_NEWS - the account is a news reflector
206 * Associated page type: PAGE_SOAPBOX
208 * ACCOUNT_TYPE_COMMUNITY - the account is community forum
209 * Associated page types: PAGE_COMMUNITY, PAGE_PRVGROUP
212 define('ACCOUNT_TYPE_PERSON', 0);
213 define('ACCOUNT_TYPE_ORGANISATION', 1);
214 define('ACCOUNT_TYPE_NEWS', 2);
215 define('ACCOUNT_TYPE_COMMUNITY', 3);
223 * Type of the community page
226 define('CP_NO_COMMUNITY_PAGE', -1);
227 define('CP_USERS_ON_SERVER', 0);
228 define('CP_GLOBAL_COMMUNITY', 1);
236 * Different protocols that we are storing
239 define('PROTOCOL_UNKNOWN', 0);
240 define('PROTOCOL_DFRN', 1);
241 define('PROTOCOL_DIASPORA', 2);
242 define('PROTOCOL_OSTATUS_SALMON', 3);
243 define('PROTOCOL_OSTATUS_FEED', 4); // Deprecated
244 define('PROTOCOL_GS_CONVERSATION', 5); // Deprecated
245 define('PROTOCOL_SPLITTED_CONV', 6);
253 * Network and protocol family types
256 define('NETWORK_DFRN', 'dfrn'); // Friendica, Mistpark, other DFRN implementations
257 define('NETWORK_ZOT', 'zot!'); // Zot! - Currently unsupported
258 define('NETWORK_OSTATUS', 'stat'); // GNU-social, Pleroma, Mastodon, other OStatus implementations
259 define('NETWORK_FEED', 'feed'); // RSS/Atom feeds with no known "post/notify" protocol
260 define('NETWORK_DIASPORA', 'dspr'); // Diaspora
261 define('NETWORK_MAIL', 'mail'); // IMAP/POP
262 define('NETWORK_FACEBOOK', 'face'); // Facebook API
263 define('NETWORK_LINKEDIN', 'lnkd'); // LinkedIn
264 define('NETWORK_XMPP', 'xmpp'); // XMPP - Currently unsupported
265 define('NETWORK_MYSPACE', 'mysp'); // MySpace - Currently unsupported
266 define('NETWORK_GPLUS', 'goog'); // Google+
267 define('NETWORK_PUMPIO', 'pump'); // pump.io
268 define('NETWORK_TWITTER', 'twit'); // Twitter
269 define('NETWORK_DIASPORA2', 'dspc'); // Diaspora connector
270 define('NETWORK_STATUSNET', 'stac'); // Statusnet connector
271 define('NETWORK_APPNET', 'apdn'); // app.net - Dead protocol
272 define('NETWORK_NEWS', 'nntp'); // Network News Transfer Protocol - Currently unsupported
273 define('NETWORK_ICALENDAR', 'ical'); // iCalendar - Currently unsupported
274 define('NETWORK_PNUT', 'pnut'); // pnut.io - Currently unsupported
275 define('NETWORK_PHANTOM', 'unkn'); // Place holder
281 * These numbers are used in stored permissions
282 * and existing allocations MUST NEVER BE CHANGED
283 * OR RE-ASSIGNED! You may only add to them.
285 $netgroup_ids = array(
286 NETWORK_DFRN => (-1),
288 NETWORK_OSTATUS => (-3),
289 NETWORK_FEED => (-4),
290 NETWORK_DIASPORA => (-5),
291 NETWORK_MAIL => (-6),
292 NETWORK_FACEBOOK => (-8),
293 NETWORK_LINKEDIN => (-9),
294 NETWORK_XMPP => (-10),
295 NETWORK_MYSPACE => (-11),
296 NETWORK_GPLUS => (-12),
297 NETWORK_PUMPIO => (-13),
298 NETWORK_TWITTER => (-14),
299 NETWORK_DIASPORA2 => (-15),
300 NETWORK_STATUSNET => (-16),
301 NETWORK_APPNET => (-17),
302 NETWORK_NEWS => (-18),
303 NETWORK_ICALENDAR => (-19),
304 NETWORK_PNUT => (-20),
306 NETWORK_PHANTOM => (-127),
310 * Maximum number of "people who like (or don't like) this" that we will list by name
312 define('MAX_LIKERS', 75);
315 * Communication timeout
317 define('ZCURL_TIMEOUT', (-1));
322 * Email notification options
325 define('NOTIFY_INTRO', 0x0001);
326 define('NOTIFY_CONFIRM', 0x0002);
327 define('NOTIFY_WALL', 0x0004);
328 define('NOTIFY_COMMENT', 0x0008);
329 define('NOTIFY_MAIL', 0x0010);
330 define('NOTIFY_SUGGEST', 0x0020);
331 define('NOTIFY_PROFILE', 0x0040);
332 define('NOTIFY_TAGSELF', 0x0080);
333 define('NOTIFY_TAGSHARE', 0x0100);
334 define('NOTIFY_POKE', 0x0200);
335 define('NOTIFY_SHARE', 0x0400);
337 define('SYSTEM_EMAIL', 0x4000);
339 define('NOTIFY_SYSTEM', 0x8000);
349 define('TERM_UNKNOWN', 0);
350 define('TERM_HASHTAG', 1);
351 define('TERM_MENTION', 2);
352 define('TERM_CATEGORY', 3);
353 define('TERM_PCATEGORY', 4);
354 define('TERM_FILE', 5);
355 define('TERM_SAVEDSEARCH', 6);
356 define('TERM_CONVERSATION', 7);
358 define('TERM_OBJ_POST', 1);
359 define('TERM_OBJ_PHOTO', 2);
364 * Various namespaces we may need to parse
367 define('NAMESPACE_ZOT', 'http://purl.org/zot');
368 define('NAMESPACE_DFRN', 'http://purl.org/macgirvin/dfrn/1.0');
369 define('NAMESPACE_THREAD', 'http://purl.org/syndication/thread/1.0');
370 define('NAMESPACE_TOMB', 'http://purl.org/atompub/tombstones/1.0');
371 define('NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/');
372 define('NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/');
373 define('NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia');
374 define('NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env');
375 define('NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe');
376 define('NAMESPACE_GEORSS', 'http://www.georss.org/georss');
377 define('NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0');
378 define('NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from');
379 define('NAMESPACE_OSTATUS', 'http://ostatus.org/schema/1.0');
380 define('NAMESPACE_STATUSNET', 'http://status.net/schema/api/1/');
381 define('NAMESPACE_ATOM1', 'http://www.w3.org/2005/Atom');
382 define('NAMESPACE_MASTODON', 'http://mastodon.social/schema/1.0');
388 * Activity stream defines
391 define('ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like');
392 define('ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike');
393 define('ACTIVITY_ATTEND', NAMESPACE_ZOT . '/activity/attendyes');
394 define('ACTIVITY_ATTENDNO', NAMESPACE_ZOT . '/activity/attendno');
395 define('ACTIVITY_ATTENDMAYBE', NAMESPACE_ZOT . '/activity/attendmaybe');
397 define('ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart');
399 define('ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend');
400 define('ACTIVITY_REQ_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'request-friend');
401 define('ACTIVITY_UNFRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'remove-friend');
402 define('ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow');
403 define('ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'stop-following');
404 define('ACTIVITY_JOIN', NAMESPACE_ACTIVITY_SCHEMA . 'join');
406 define('ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post');
407 define('ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update');
408 define('ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag');
409 define('ACTIVITY_FAVORITE', NAMESPACE_ACTIVITY_SCHEMA . 'favorite');
410 define('ACTIVITY_UNFAVORITE', NAMESPACE_ACTIVITY_SCHEMA . 'unfavorite');
411 define('ACTIVITY_SHARE', NAMESPACE_ACTIVITY_SCHEMA . 'share');
412 define('ACTIVITY_DELETE', NAMESPACE_ACTIVITY_SCHEMA . 'delete');
414 define('ACTIVITY_POKE', NAMESPACE_ZOT . '/activity/poke');
415 define('ACTIVITY_MOOD', NAMESPACE_ZOT . '/activity/mood');
417 define('ACTIVITY_OBJ_BOOKMARK', NAMESPACE_ACTIVITY_SCHEMA . 'bookmark');
418 define('ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment');
419 define('ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note');
420 define('ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person');
421 define('ACTIVITY_OBJ_IMAGE', NAMESPACE_ACTIVITY_SCHEMA . 'image');
422 define('ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo');
423 define('ACTIVITY_OBJ_VIDEO', NAMESPACE_ACTIVITY_SCHEMA . 'video');
424 define('ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo');
425 define('ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album');
426 define('ACTIVITY_OBJ_EVENT', NAMESPACE_ACTIVITY_SCHEMA . 'event');
427 define('ACTIVITY_OBJ_GROUP', NAMESPACE_ACTIVITY_SCHEMA . 'group');
428 define('ACTIVITY_OBJ_TAGTERM', NAMESPACE_DFRN . '/tagterm');
429 define('ACTIVITY_OBJ_PROFILE', NAMESPACE_DFRN . '/profile');
430 define('ACTIVITY_OBJ_QUESTION', 'http://activityschema.org/object/question');
436 * Item weight for query ordering
439 define('GRAVITY_PARENT', 0);
440 define('GRAVITY_LIKE', 3);
441 define('GRAVITY_COMMENT', 6);
447 * Process priority for the worker
450 define('PRIORITY_UNDEFINED', 0);
451 define('PRIORITY_CRITICAL', 10);
452 define('PRIORITY_HIGH', 20);
453 define('PRIORITY_MEDIUM', 30);
454 define('PRIORITY_LOW', 40);
455 define('PRIORITY_NEGLIGIBLE', 50);
459 * @name Social Relay settings
461 * See here: https://github.com/jaywink/social-relay
462 * and here: https://wiki.diasporafoundation.org/Relay_servers_for_public_posts
465 define('SR_SCOPE_NONE', '');
466 define('SR_SCOPE_ALL', 'all');
467 define('SR_SCOPE_TAGS', 'tags');
471 * Lowest possible date time value
473 define('NULL_DATE', '0001-01-01 00:00:00');
475 // Normally this constant is defined - but not if "pcntl" isn't installed
476 if (!defined("SIGTERM")) {
477 define("SIGTERM", 15);
481 * Depending on the PHP version this constant does exist - or not.
482 * See here: http://php.net/manual/en/curl.constants.php#117928
484 if (!defined('CURLE_OPERATION_TIMEDOUT')) {
485 define('CURLE_OPERATION_TIMEDOUT', CURLE_OPERATION_TIMEOUTED);
488 * Reverse the effect of magic_quotes_gpc if it is enabled.
489 * Please disable magic_quotes_gpc so we don't have to do this.
490 * See http://php.net/manual/en/security.magicquotes.disabling.php
494 error_reporting(E_ERROR | E_WARNING | E_PARSE);
498 // This has to be quite large to deal with embedded private photos
499 ini_set('pcre.backtrack_limit', 500000);
501 if (get_magic_quotes_gpc()) {
502 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
503 while (list($key, $val) = each($process)) {
504 foreach ($val as $k => $v) {
505 unset($process[$key][$k]);
507 $process[$key][stripslashes($k)] = $v;
508 $process[] = &$process[$key][stripslashes($k)];
510 $process[$key][stripslashes($k)] = stripslashes($v);
519 * @brief Retrieve the App structure
521 * Useful in functions which require it but don't get it passed to them
528 $a = new App(dirname(__DIR__));
535 * @brief Multi-purpose function to check variable state.
537 * Usage: x($var) or $x($array, 'key')
539 * returns false if variable/key is not set
540 * if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
541 * e.g. x('') or x(0) returns 0;
543 * @param string|array $s variable to check
544 * @param string $k key inside the array to check
548 function x($s, $k = null)
551 if ((is_array($s)) && (array_key_exists($k, $s))) {
570 * @brief Called from db initialisation if db is dead.
572 function system_unavailable()
574 include 'system_unavailable.php';
580 * @brief Returns the baseurl.
582 * @see System::baseUrl()
585 * @TODO Function is deprecated and only used in some addons
589 return System::baseUrl();
593 * @brief Return absolut URL for given $path.
595 * @param string $path given path
599 function absurl($path)
601 if (strpos($path, '/') === 0) {
602 return z_path() . $path;
608 * @brief Function to check if request was an AJAX (xmlhttprequest) request.
614 return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
618 * @brief Function to check if request was an AJAX (xmlhttprequest) request.
620 * @param boolean $via_worker boolean Is the check run via the worker?
622 function check_db($via_worker)
624 $build = Config::get('system', 'build');
626 Config::set('system', 'build', DB_UPDATE_VERSION);
627 $build = DB_UPDATE_VERSION;
629 if ($build != DB_UPDATE_VERSION) {
630 // When we cannot execute the database update via the worker, we will do it directly
631 if (!Worker::add(PRIORITY_CRITICAL, 'DBUpdate') && $via_worker) {
632 update_db(get_app());
638 * Sets the base url for use in cmdline programs which don't have
641 * @param object $a App
643 function check_url(App $a)
645 $url = Config::get('system', 'url');
647 // if the url isn't set or the stored url is radically different
648 // than the currently visited url, store the current value accordingly.
649 // "Radically different" ignores common variations such as http vs https
650 // and www.example.com vs example.com.
651 // We will only change the url to an ip address if there is no existing setting
654 $url = Config::set('system', 'url', System::baseUrl());
656 if ((!link_compare($url, System::baseUrl())) && (!preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/", $a->get_hostname))) {
657 $url = Config::set('system', 'url', System::baseUrl());
664 * @brief Automatic database updates
665 * @param object $a App
667 function update_db(App $a)
669 $build = Config::get('system', 'build');
671 $build = Config::set('system', 'build', DB_UPDATE_VERSION);
674 if ($build != DB_UPDATE_VERSION) {
675 $stored = intval($build);
676 $current = intval(DB_UPDATE_VERSION);
677 if ($stored < $current) {
678 Config::load('database');
680 // We're reporting a different version than what is currently installed.
681 // Run any existing update scripts to bring the database up to current.
682 // make sure that boot.php and update.php are the same release, we might be
683 // updating right this very second and the correct version of the update.php
684 // file may not be here yet. This can happen on a very busy site.
686 if (DB_UPDATE_VERSION == UPDATE_VERSION) {
687 // Compare the current structure with the defined structure
689 $t = Config::get('database', 'dbupdate_' . DB_UPDATE_VERSION);
694 Config::set('database', 'dbupdate_' . DB_UPDATE_VERSION, time());
696 // run old update routine (wich could modify the schema and
697 // conflits with new routine)
698 for ($x = $stored; $x < NEW_UPDATE_ROUTINE_VERSION; $x++) {
699 $r = run_update_function($x);
704 if ($stored < NEW_UPDATE_ROUTINE_VERSION) {
705 $stored = NEW_UPDATE_ROUTINE_VERSION;
708 // run new update routine
709 // it update the structure in one call
710 $retval = update_structure(false, true);
718 Config::set('database', 'dbupdate_' . DB_UPDATE_VERSION, 'success');
721 // run any left update_nnnn functions in update.php
722 for ($x = $stored; $x < $current; $x ++) {
723 $r = run_update_function($x);
735 function run_update_function($x)
737 if (function_exists('update_' . $x)) {
738 // There could be a lot of processes running or about to run.
739 // We want exactly one process to run the update command.
740 // So store the fact that we're taking responsibility
741 // after first checking to see if somebody else already has.
742 // If the update fails or times-out completely you may need to
743 // delete the config entry to try again.
745 $t = Config::get('database', 'update_' . $x);
749 Config::set('database', 'update_' . $x, time());
751 // call the specific update
753 $func = 'update_' . $x;
757 //send the administrator an e-mail
760 sprintf(t('Update %s failed. See error logs.'), $x)
764 Config::set('database', 'update_' . $x, 'success');
765 Config::set('system', 'build', $x + 1);
769 Config::set('database', 'update_' . $x, 'success');
770 Config::set('system', 'build', $x + 1);
777 * @brief Synchronise plugins:
779 * $a->config['system']['addon'] contains a comma-separated list of names
780 * of plugins/addons which are used on this system.
781 * Go through the database list of already installed addons, and if we have
782 * an entry, but it isn't in the config list, call the uninstall procedure
783 * and mark it uninstalled in the database (for now we'll remove it).
784 * Then go through the config list and if we have a plugin that isn't installed,
785 * call the install procedure and add it to the database.
787 * @param object $a App
789 function check_plugins(App $a)
791 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
792 if (DBM::is_result($r)) {
795 $installed = array();
798 $plugins = Config::get('system', 'addon');
799 $plugins_arr = array();
802 $plugins_arr = explode(',', str_replace(' ', '', $plugins));
805 $a->plugins = $plugins_arr;
807 $installed_arr = array();
809 if (count($installed)) {
810 foreach ($installed as $i) {
811 if (!in_array($i['name'], $plugins_arr)) {
812 uninstall_plugin($i['name']);
814 $installed_arr[] = $i['name'];
819 if (count($plugins_arr)) {
820 foreach ($plugins_arr as $p) {
821 if (!in_array($p, $installed_arr)) {
832 function get_guid($size = 16, $prefix = "")
836 $prefix = hash("crc32", $a->get_hostname());
839 while (strlen($prefix) < ($size - 13)) {
840 $prefix .= mt_rand();
844 $prefix = substr($prefix, 0, $size - 22);
845 return(str_replace(".", "", uniqid($prefix, true)));
847 $prefix = substr($prefix, 0, max($size - 13, 0));
848 return(uniqid($prefix));
853 * @brief Wrapper for adding a login box.
855 * @param bool $register If $register == true provide a registration link.
856 * This will most always depend on the value of $a->config['register_policy'].
857 * @param bool $hiddens optional
859 * @return string Returns the complete html for inserting into the page
861 * @hooks 'login_hook'
864 function login($register = false, $hiddens = false)
871 'title' => t('Create a New Account'),
872 'desc' => t('Register')
876 $noid = Config::get('system', 'no_openid');
878 $dest_url = $a->query_string;
881 $tpl = get_markup_template("logout.tpl");
883 $a->page['htmlhead'] .= replace_macros(
884 get_markup_template("login_head.tpl"),
886 '$baseurl' => $a->get_baseurl(true)
890 $tpl = get_markup_template("login.tpl");
891 $_SESSION['return_url'] = $a->query_string;
892 $a->module = 'login';
895 $o .= replace_macros(
898 '$dest_url' => $dest_url,
899 '$logout' => t('Logout'),
900 '$login' => t('Login'),
902 '$lname' => array('username', t('Nickname or Email: ') , '', ''),
903 '$lpassword' => array('password', t('Password: '), '', ''),
904 '$lremember' => array('remember', t('Remember me'), 0, ''),
907 '$lopenid' => array('openid_url', t('Or login using OpenID: '),'',''),
909 '$hiddens' => $hiddens,
913 '$lostpass' => t('Forgot your password?'),
914 '$lostlink' => t('Password Reset'),
916 '$tostitle' => t('Website Terms of Service'),
917 '$toslink' => t('terms of service'),
919 '$privacytitle' => t('Website Privacy Policy'),
920 '$privacylink' => t('privacy policy'),
924 call_hooks('login_hook', $o);
930 * @brief Used to end the current process, after saving session state.
934 global $session_exists;
936 if (!get_app()->is_backend()) {
937 if (!$session_exists) {
940 session_write_close();
948 * @brief Redirect to another URL and terminate this process.
952 if (!strstr(normalise_link($s), "http://")) {
953 $s = System::baseUrl() . "/" . $s;
956 header("Location: $s");
961 * @brief Returns the user id of locally logged in user or false.
963 * @return int|bool user id or false
965 function local_user()
967 if (x($_SESSION, 'authenticated') && x($_SESSION, 'uid')) {
968 return intval($_SESSION['uid']);
974 * @brief Returns the public contact id of logged in user or false.
976 * @return int|bool public contact id or false
978 function public_contact()
980 static $public_contact_id = false;
982 if (!$public_contact_id && x($_SESSION, 'authenticated')) {
983 if (x($_SESSION, 'my_address')) {
985 $public_contact_id = intval(Contact::getIdForURL($_SESSION['my_address'], 0));
986 } elseif (x($_SESSION, 'visitor_home')) {
988 $public_contact_id = intval(Contact::getIdForURL($_SESSION['visitor_home'], 0));
990 } elseif (!x($_SESSION, 'authenticated')) {
991 $public_contact_id = false;
994 return $public_contact_id;
998 * @brief Returns contact id of authenticated site visitor or false
1000 * @return int|bool visitor_id or false
1002 function remote_user()
1004 // You cannot be both local and remote
1008 if ((x($_SESSION, 'authenticated')) && (x($_SESSION, 'visitor_id'))) {
1009 return intval($_SESSION['visitor_id']);
1015 * @brief Show an error message to user.
1017 * This function save text in session, to be shown to the user at next page load
1019 * @param string $s - Text of notice
1024 if (!x($_SESSION, 'sysmsg')) {
1025 $_SESSION['sysmsg'] = array();
1027 if ($a->interactive) {
1028 $_SESSION['sysmsg'][] = $s;
1033 * @brief Show an info message to user.
1035 * This function save text in session, to be shown to the user at next page load
1037 * @param string $s - Text of notice
1043 if (local_user() && PConfig::get(local_user(), 'system', 'ignore_info')) {
1047 if (!x($_SESSION, 'sysmsg_info')) {
1048 $_SESSION['sysmsg_info'] = array();
1050 if ($a->interactive) {
1051 $_SESSION['sysmsg_info'][] = $s;
1056 * @brief Wrapper around config to limit the text length of an incoming message
1060 function get_max_import_size()
1063 return ((x($a->config, 'max_import_size')) ? $a->config['max_import_size'] : 0 );
1067 function current_theme()
1069 $app_base_themes = array('duepuntozero', 'dispy', 'quattro');
1075 // Find the theme that belongs to the user whose stuff we are looking at
1077 if ($a->profile_uid && ($a->profile_uid != local_user())) {
1079 "select theme from user where uid = %d limit 1",
1080 intval($a->profile_uid)
1082 if (DBM::is_result($r)) {
1083 $page_theme = $r[0]['theme'];
1087 // Allow folks to over-rule user themes and always use their own on their own site.
1088 // This works only if the user is on the same server
1090 if ($page_theme && local_user() && (local_user() != $a->profile_uid)) {
1091 if (PConfig::get(local_user(), 'system', 'always_my_theme')) {
1096 // $mobile_detect = new Mobile_Detect();
1097 // $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1098 $is_mobile = $a->is_mobile || $a->is_tablet;
1100 $standard_system_theme = Config::get('system', 'theme', '');
1101 $standard_theme_name = ((isset($_SESSION) && x($_SESSION, 'theme')) ? $_SESSION['theme'] : $standard_system_theme);
1104 if (isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
1105 $system_theme = $standard_system_theme;
1106 $theme_name = $standard_theme_name;
1108 $system_theme = Config::get('system', 'mobile-theme', '');
1109 if ($system_theme == '') {
1110 $system_theme = $standard_system_theme;
1112 $theme_name = ((isset($_SESSION) && x($_SESSION, 'mobile-theme')) ? $_SESSION['mobile-theme'] : $system_theme);
1114 if ($theme_name === '---') {
1115 // user has selected to have the mobile theme be the same as the normal one
1116 $system_theme = $standard_system_theme;
1117 $theme_name = $standard_theme_name;
1120 $theme_name = $page_theme;
1125 $system_theme = $standard_system_theme;
1126 $theme_name = $standard_theme_name;
1129 $theme_name = $page_theme;
1134 && (file_exists('view/theme/' . $theme_name . '/style.css')
1135 || file_exists('view/theme/' . $theme_name . '/style.php'))
1137 return($theme_name);
1140 foreach ($app_base_themes as $t) {
1141 if (file_exists('view/theme/' . $t . '/style.css')
1142 || file_exists('view/theme/' . $t . '/style.php')
1148 $fallback = array_merge(glob('view/theme/*/style.css'), glob('view/theme/*/style.php'));
1149 if (count($fallback)) {
1150 return (str_replace('view/theme/', '', substr($fallback[0], 0, -10)));
1153 /// @TODO No final return statement?
1157 * @brief Return full URL to theme which is currently in effect.
1159 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1163 function current_theme_url()
1167 $t = current_theme();
1169 $opts = (($a->profile_uid) ? '?f=&puid=' . $a->profile_uid : '');
1170 if (file_exists('view/theme/' . $t . '/style.php')) {
1171 return('view/theme/' . $t . '/style.pcss' . $opts);
1174 return('view/theme/' . $t . '/style.css');
1177 function feed_birthday($uid, $tz)
1180 * Determine the next birthday, but only if the birthday is published
1181 * in the default profile. We _could_ also look for a private profile that the
1182 * recipient can see, but somebody could get mad at us if they start getting
1183 * public birthday greetings when they haven't made this info public.
1185 * Assuming we are able to publish this info, we are then going to convert
1186 * the start time from the owner's timezone to UTC.
1188 * This will potentially solve the problem found with some social networks
1189 * where birthdays are converted to the viewer's timezone and salutations from
1190 * elsewhere in the world show up on the wrong day. We will convert it to the
1191 * viewer's timezone also, but first we are going to convert it from the birthday
1192 * person's timezone to GMT - so the viewer may find the birthday starting at
1193 * 6:00PM the day before, but that will correspond to midnight to the birthday person.
1202 "SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
1206 if (DBM::is_result($p)) {
1207 $tmp_dob = substr($p[0]['dob'], 5);
1208 if (intval($tmp_dob)) {
1209 $y = datetime_convert($tz, $tz, 'now', 'Y');
1210 $bd = $y . '-' . $tmp_dob . ' 00:00';
1211 $t_dob = strtotime($bd);
1212 $now = strtotime(datetime_convert($tz, $tz, 'now'));
1213 if ($t_dob < $now) {
1214 $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
1216 $birthday = datetime_convert($tz, 'UTC', $bd, ATOM_TIME);
1224 * @brief Check if current user has admin role.
1226 * @return bool true if user is an admin
1228 function is_site_admin()
1232 $adminlist = explode(",", str_replace(" ", "", $a->config['admin_email']));
1234 //if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
1235 if (local_user() && x($a->user, 'email') && x($a->config, 'admin_email') && in_array($a->user['email'], $adminlist)) {
1242 * @brief Returns querystring as string from a mapped array.
1244 * @param array $params mapped array with query parameters
1245 * @param string $name of parameter, default null
1249 function build_querystring($params, $name = null)
1252 foreach ($params as $key => $val) {
1253 if (is_array($val)) {
1254 /// @TODO maybe not compare against null, use is_null()
1255 if ($name == null) {
1256 $ret .= build_querystring($val, $key);
1258 $ret .= build_querystring($val, $name . "[$key]");
1261 $val = urlencode($val);
1262 /// @TODO maybe not compare against null, use is_null()
1263 if ($name != null) {
1264 /// @TODO two string concated, can be merged to one
1265 $ret .= $name . "[$key]" . "=$val&";
1267 $ret .= "$key=$val&";
1274 function explode_querystring($query)
1276 $arg_st = strpos($query, '?');
1277 if ($arg_st !== false) {
1278 $base = substr($query, 0, $arg_st);
1285 $args = explode('&', substr($query, $arg_st));
1286 foreach ($args as $k => $arg) {
1287 /// @TODO really compare type-safe here?
1292 $args = array_values($args);
1297 $args = array_values($args);
1307 * Returns the complete URL of the current page, e.g.: http(s)://something.com/network
1309 * Taken from http://webcheatsheet.com/php/get_current_page_url.php
1311 function curPageURL()
1314 if ($_SERVER["HTTPS"] == "on") {
1320 if ($_SERVER["SERVER_PORT"] != "80" && $_SERVER["SERVER_PORT"] != "443") {
1321 $pageURL .= $_SERVER["SERVER_NAME"] . ":" . $_SERVER["SERVER_PORT"] . $_SERVER["REQUEST_URI"];
1323 $pageURL .= $_SERVER["SERVER_NAME"] . $_SERVER["REQUEST_URI"];
1328 function random_digits($digits)
1331 for ($i = 0; $i < $digits; $i++) {
1332 /// @TODO rand() is different to mt_rand() and maybe lesser "random"
1338 function get_server()
1340 $server = Config::get("system", "directory");
1342 if ($server == "") {
1343 $server = "http://dir.friendica.social";
1349 function get_temppath()
1353 $temppath = Config::get("system", "temppath");
1355 if (($temppath != "") && App::directory_usable($temppath)) {
1356 // We have a temp path and it is usable
1357 return App::realpath($temppath);
1360 // We don't have a working preconfigured temp path, so we take the system path.
1361 $temppath = sys_get_temp_dir();
1363 // Check if it is usable
1364 if (($temppath != "") && App::directory_usable($temppath)) {
1365 // Always store the real path, not the path through symlinks
1366 $temppath = App::realpath($temppath);
1368 // To avoid any interferences with other systems we create our own directory
1369 $new_temppath = $temppath . "/" . $a->get_hostname();
1370 if (!is_dir($new_temppath)) {
1371 /// @TODO There is a mkdir()+chmod() upwards, maybe generalize this (+ configurable) into a function/method?
1372 mkdir($new_temppath);
1375 if (App::directory_usable($new_temppath)) {
1376 // The new path is usable, we are happy
1377 Config::set("system", "temppath", $new_temppath);
1378 return $new_temppath;
1380 // We can't create a subdirectory, strange.
1381 // But the directory seems to work, so we use it but don't store it.
1386 // Reaching this point means that the operating system is configured badly.
1390 function get_cachefile($file, $writemode = true)
1392 $cache = get_itemcachepath();
1394 if ((!$cache) || (!is_dir($cache))) {
1398 $subfolder = $cache . "/" . substr($file, 0, 2);
1400 $cachepath = $subfolder . "/" . $file;
1403 if (!is_dir($subfolder)) {
1405 chmod($subfolder, 0777);
1409 /// @TODO no need to put braces here
1413 function clear_cache($basepath = "", $path = "")
1416 $basepath = get_itemcachepath();
1420 if (($path == "") || (!is_dir($path))) {
1424 if (substr(realpath($path), 0, strlen($basepath)) != $basepath) {
1428 $cachetime = (int) Config::get('system', 'itemcache_duration');
1429 if ($cachetime == 0) {
1433 if (is_writable($path)) {
1434 if ($dh = opendir($path)) {
1435 while (($file = readdir($dh)) !== false) {
1436 $fullpath = $path . "/" . $file;
1437 if ((filetype($fullpath) == "dir") && ($file != ".") && ($file != "..")) {
1438 clear_cache($basepath, $fullpath);
1440 if ((filetype($fullpath) == "file") && (filectime($fullpath) < (time() - $cachetime))) {
1449 function get_itemcachepath()
1451 // Checking, if the cache is deactivated
1452 $cachetime = (int) Config::get('system', 'itemcache_duration');
1453 if ($cachetime < 0) {
1457 $itemcache = Config::get('system', 'itemcache');
1458 if (($itemcache != "") && App::directory_usable($itemcache)) {
1459 return App::realpath($itemcache);
1462 $temppath = get_temppath();
1464 if ($temppath != "") {
1465 $itemcache = $temppath . "/itemcache";
1466 if (!file_exists($itemcache) && !is_dir($itemcache)) {
1470 if (App::directory_usable($itemcache)) {
1471 Config::set("system", "itemcache", $itemcache);
1479 * @brief Returns the path where spool files are stored
1481 * @return string Spool path
1483 function get_spoolpath()
1485 $spoolpath = Config::get('system', 'spoolpath');
1486 if (($spoolpath != "") && App::directory_usable($spoolpath)) {
1487 // We have a spool path and it is usable
1491 // We don't have a working preconfigured spool path, so we take the temp path.
1492 $temppath = get_temppath();
1494 if ($temppath != "") {
1495 // To avoid any interferences with other systems we create our own directory
1496 $spoolpath = $temppath . "/spool";
1497 if (!is_dir($spoolpath)) {
1501 if (App::directory_usable($spoolpath)) {
1502 // The new path is usable, we are happy
1503 Config::set("system", "spoolpath", $spoolpath);
1506 // We can't create a subdirectory, strange.
1507 // But the directory seems to work, so we use it but don't store it.
1512 // Reaching this point means that the operating system is configured badly.
1517 if (!function_exists('exif_imagetype')) {
1518 function exif_imagetype($file)
1520 $size = getimagesize($file);
1525 function validate_include(&$file)
1529 $file = realpath($file);
1531 if (strpos($file, getcwd()) !== 0) {
1535 $file = str_replace(getcwd() . "/", "", $file, $count);
1540 if ($orig_file !== $file) {
1545 if (strpos($file, "include/") === 0) {
1549 if (strpos($file, "addon/") === 0) {
1553 // Simply return flag
1557 function current_load()
1559 if (!function_exists('sys_getloadavg')) {
1563 $load_arr = sys_getloadavg();
1565 if (!is_array($load_arr)) {
1569 return max($load_arr[0], $load_arr[1]);
1573 * @brief get c-style args
1579 return get_app()->argc;
1583 * @brief Returns the value of a argv key
1585 * @param int $x argv key
1586 * @return string Value of the argv key
1590 if (array_key_exists($x, get_app()->argv)) {
1591 return get_app()->argv[$x];
1598 * @brief Get the data which is needed for infinite scroll
1600 * For invinite scroll we need the page number of the actual page
1601 * and the the URI where the content of the next page comes from.
1602 * This data is needed for the js part in main.js.
1603 * Note: infinite scroll does only work for the network page (module)
1605 * @param string $module The name of the module (e.g. "network")
1606 * @return array Of infinite scroll data
1607 * 'pageno' => $pageno The number of the actual page
1608 * 'reload_uri' => $reload_uri The URI of the content we have to load
1610 function infinite_scroll_data($module)
1612 if (PConfig::get(local_user(), 'system', 'infinite_scroll')
1613 && ($module == "network") && ($_GET["mode"] != "minimal")
1615 // get the page number
1616 if (is_string($_GET["page"])) {
1617 $pageno = $_GET["page"];
1624 // try to get the uri from which we load the content
1625 foreach ($_GET as $param => $value) {
1626 if (($param != "page") && ($param != "q")) {
1627 $reload_uri .= "&" . $param . "=" . urlencode($value);
1631 if (($a->page_offset != "") && ! strstr($reload_uri, "&offset=")) {
1632 $reload_uri .= "&offset=" . urlencode($a->page_offset);
1635 $arr = array("pageno" => $pageno, "reload_uri" => $reload_uri);