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\Model\Contact;
31 use Friendica\Database\DBStructure;
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/identity.php';
41 define('FRIENDICA_PLATFORM', 'Friendica');
42 define('FRIENDICA_CODENAME', 'Asparagus');
43 define('FRIENDICA_VERSION', '3.6-dev');
44 define('DFRN_PROTOCOL_VERSION', '2.23');
45 define('DB_UPDATE_VERSION', 1238);
46 define('NEW_UPDATE_ROUTINE_VERSION', 1170);
49 * @brief Constants for the database update check
51 const DB_UPDATE_NOT_CHECKED = 0; // Database check wasn't executed before
52 const DB_UPDATE_SUCCESSFUL = 1; // Database check was successful
53 const DB_UPDATE_FAILED = 2; // Database check failed
56 * @brief Constant with a HTML line break.
58 * Contains a HTML line break (br) element and a real carriage return with line
59 * feed for the source.
60 * This can be used in HTML and JavaScript where needed a line break.
62 define('EOL', "<br />\r\n");
63 define('ATOM_TIME', 'Y-m-d\TH:i:s\Z');
66 * @brief Image storage quality.
68 * Lower numbers save space at cost of image detail.
69 * For ease of upgrade, please do not change here. Change jpeg quality with
70 * $a->config['system']['jpeg_quality'] = n;
71 * in .htconfig.php, where n is netween 1 and 100, and with very poor results
74 define('JPEG_QUALITY', 100);
77 * $a->config['system']['png_quality'] from 0 (uncompressed) to 9
79 define('PNG_QUALITY', 8);
82 * An alternate way of limiting picture upload sizes. Specify the maximum pixel
83 * length that pictures are allowed to be (for non-square pictures, it will apply
84 * to the longest side). Pictures longer than this length will be resized to be
85 * this length (on the longest side, the other side will be scaled appropriately).
86 * Modify this value using
88 * $a->config['system']['max_image_length'] = n;
92 * If you don't want to set a maximum length, set to -1. The default value is
93 * defined by 'MAX_IMAGE_LENGTH' below.
95 define('MAX_IMAGE_LENGTH', -1);
100 define('DEFAULT_DB_ENGINE', 'InnoDB');
105 * SSL redirection policies
108 define('SSL_POLICY_NONE', 0);
109 define('SSL_POLICY_FULL', 1);
110 define('SSL_POLICY_SELFSIGN', 2);
119 define('LOGGER_NORMAL', 0);
120 define('LOGGER_TRACE', 1);
121 define('LOGGER_DEBUG', 2);
122 define('LOGGER_DATA', 3);
123 define('LOGGER_ALL', 4);
132 define('CACHE_MONTH', 0);
133 define('CACHE_WEEK', 1);
134 define('CACHE_DAY', 2);
135 define('CACHE_HOUR', 3);
136 define('CACHE_HALF_HOUR', 4);
137 define('CACHE_QUARTER_HOUR', 5);
138 define('CACHE_FIVE_MINUTES', 6);
139 define('CACHE_MINUTE', 7);
145 * Registration policies
148 define('REGISTER_CLOSED', 0);
149 define('REGISTER_APPROVE', 1);
150 define('REGISTER_OPEN', 2);
161 define('CONTACT_IS_FOLLOWER', 1);
162 define('CONTACT_IS_SHARING', 2);
163 define('CONTACT_IS_FRIEND', 3);
171 * DB update return values
174 define('UPDATE_SUCCESS', 0);
175 define('UPDATE_FAILED', 1);
181 * @name page/profile types
183 * PAGE_NORMAL is a typical personal profile account
184 * PAGE_SOAPBOX automatically approves all friend requests as CONTACT_IS_SHARING, (readonly)
185 * PAGE_COMMUNITY automatically approves all friend requests as CONTACT_IS_SHARING, but with
186 * write access to wall and comments (no email and not included in page owner's ACL lists)
187 * PAGE_FREELOVE automatically approves all friend requests as full friends (CONTACT_IS_FRIEND).
191 define('PAGE_NORMAL', 0);
192 define('PAGE_SOAPBOX', 1);
193 define('PAGE_COMMUNITY', 2);
194 define('PAGE_FREELOVE', 3);
195 define('PAGE_BLOG', 4);
196 define('PAGE_PRVGROUP', 5);
202 * @name account types
204 * ACCOUNT_TYPE_PERSON - the account belongs to a person
205 * Associated page types: PAGE_NORMAL, PAGE_SOAPBOX, PAGE_FREELOVE
207 * ACCOUNT_TYPE_ORGANISATION - the account belongs to an organisation
208 * Associated page type: PAGE_SOAPBOX
210 * ACCOUNT_TYPE_NEWS - the account is a news reflector
211 * Associated page type: PAGE_SOAPBOX
213 * ACCOUNT_TYPE_COMMUNITY - the account is community forum
214 * Associated page types: PAGE_COMMUNITY, PAGE_PRVGROUP
217 define('ACCOUNT_TYPE_PERSON', 0);
218 define('ACCOUNT_TYPE_ORGANISATION', 1);
219 define('ACCOUNT_TYPE_NEWS', 2);
220 define('ACCOUNT_TYPE_COMMUNITY', 3);
228 * Type of the community page
231 define('CP_NO_COMMUNITY_PAGE', -1);
232 define('CP_USERS_ON_SERVER', 0);
233 define('CP_GLOBAL_COMMUNITY', 1);
241 * Different protocols that we are storing
244 define('PROTOCOL_UNKNOWN', 0);
245 define('PROTOCOL_DFRN', 1);
246 define('PROTOCOL_DIASPORA', 2);
247 define('PROTOCOL_OSTATUS_SALMON', 3);
248 define('PROTOCOL_OSTATUS_FEED', 4); // Deprecated
249 define('PROTOCOL_GS_CONVERSATION', 5); // Deprecated
250 define('PROTOCOL_SPLITTED_CONV', 6);
258 * Network and protocol family types
261 define('NETWORK_DFRN', 'dfrn'); // Friendica, Mistpark, other DFRN implementations
262 define('NETWORK_ZOT', 'zot!'); // Zot! - Currently unsupported
263 define('NETWORK_OSTATUS', 'stat'); // GNU-social, Pleroma, Mastodon, other OStatus implementations
264 define('NETWORK_FEED', 'feed'); // RSS/Atom feeds with no known "post/notify" protocol
265 define('NETWORK_DIASPORA', 'dspr'); // Diaspora
266 define('NETWORK_MAIL', 'mail'); // IMAP/POP
267 define('NETWORK_FACEBOOK', 'face'); // Facebook API
268 define('NETWORK_LINKEDIN', 'lnkd'); // LinkedIn
269 define('NETWORK_XMPP', 'xmpp'); // XMPP - Currently unsupported
270 define('NETWORK_MYSPACE', 'mysp'); // MySpace - Currently unsupported
271 define('NETWORK_GPLUS', 'goog'); // Google+
272 define('NETWORK_PUMPIO', 'pump'); // pump.io
273 define('NETWORK_TWITTER', 'twit'); // Twitter
274 define('NETWORK_DIASPORA2', 'dspc'); // Diaspora connector
275 define('NETWORK_STATUSNET', 'stac'); // Statusnet connector
276 define('NETWORK_APPNET', 'apdn'); // app.net - Dead protocol
277 define('NETWORK_NEWS', 'nntp'); // Network News Transfer Protocol - Currently unsupported
278 define('NETWORK_ICALENDAR', 'ical'); // iCalendar - Currently unsupported
279 define('NETWORK_PNUT', 'pnut'); // pnut.io - Currently unsupported
280 define('NETWORK_PHANTOM', 'unkn'); // Place holder
286 * These numbers are used in stored permissions
287 * and existing allocations MUST NEVER BE CHANGED
288 * OR RE-ASSIGNED! You may only add to them.
290 $netgroup_ids = array(
291 NETWORK_DFRN => (-1),
293 NETWORK_OSTATUS => (-3),
294 NETWORK_FEED => (-4),
295 NETWORK_DIASPORA => (-5),
296 NETWORK_MAIL => (-6),
297 NETWORK_FACEBOOK => (-8),
298 NETWORK_LINKEDIN => (-9),
299 NETWORK_XMPP => (-10),
300 NETWORK_MYSPACE => (-11),
301 NETWORK_GPLUS => (-12),
302 NETWORK_PUMPIO => (-13),
303 NETWORK_TWITTER => (-14),
304 NETWORK_DIASPORA2 => (-15),
305 NETWORK_STATUSNET => (-16),
306 NETWORK_APPNET => (-17),
307 NETWORK_NEWS => (-18),
308 NETWORK_ICALENDAR => (-19),
309 NETWORK_PNUT => (-20),
311 NETWORK_PHANTOM => (-127),
315 * Maximum number of "people who like (or don't like) this" that we will list by name
317 define('MAX_LIKERS', 75);
320 * Communication timeout
322 define('ZCURL_TIMEOUT', (-1));
327 * Email notification options
330 define('NOTIFY_INTRO', 0x0001);
331 define('NOTIFY_CONFIRM', 0x0002);
332 define('NOTIFY_WALL', 0x0004);
333 define('NOTIFY_COMMENT', 0x0008);
334 define('NOTIFY_MAIL', 0x0010);
335 define('NOTIFY_SUGGEST', 0x0020);
336 define('NOTIFY_PROFILE', 0x0040);
337 define('NOTIFY_TAGSELF', 0x0080);
338 define('NOTIFY_TAGSHARE', 0x0100);
339 define('NOTIFY_POKE', 0x0200);
340 define('NOTIFY_SHARE', 0x0400);
342 define('SYSTEM_EMAIL', 0x4000);
344 define('NOTIFY_SYSTEM', 0x8000);
354 define('TERM_UNKNOWN', 0);
355 define('TERM_HASHTAG', 1);
356 define('TERM_MENTION', 2);
357 define('TERM_CATEGORY', 3);
358 define('TERM_PCATEGORY', 4);
359 define('TERM_FILE', 5);
360 define('TERM_SAVEDSEARCH', 6);
361 define('TERM_CONVERSATION', 7);
363 define('TERM_OBJ_POST', 1);
364 define('TERM_OBJ_PHOTO', 2);
369 * Various namespaces we may need to parse
372 define('NAMESPACE_ZOT', 'http://purl.org/zot');
373 define('NAMESPACE_DFRN', 'http://purl.org/macgirvin/dfrn/1.0');
374 define('NAMESPACE_THREAD', 'http://purl.org/syndication/thread/1.0');
375 define('NAMESPACE_TOMB', 'http://purl.org/atompub/tombstones/1.0');
376 define('NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/');
377 define('NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/');
378 define('NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia');
379 define('NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env');
380 define('NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe');
381 define('NAMESPACE_GEORSS', 'http://www.georss.org/georss');
382 define('NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0');
383 define('NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from');
384 define('NAMESPACE_OSTATUS', 'http://ostatus.org/schema/1.0');
385 define('NAMESPACE_STATUSNET', 'http://status.net/schema/api/1/');
386 define('NAMESPACE_ATOM1', 'http://www.w3.org/2005/Atom');
387 define('NAMESPACE_MASTODON', 'http://mastodon.social/schema/1.0');
393 * Activity stream defines
396 define('ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like');
397 define('ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike');
398 define('ACTIVITY_ATTEND', NAMESPACE_ZOT . '/activity/attendyes');
399 define('ACTIVITY_ATTENDNO', NAMESPACE_ZOT . '/activity/attendno');
400 define('ACTIVITY_ATTENDMAYBE', NAMESPACE_ZOT . '/activity/attendmaybe');
402 define('ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart');
404 define('ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend');
405 define('ACTIVITY_REQ_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'request-friend');
406 define('ACTIVITY_UNFRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'remove-friend');
407 define('ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow');
408 define('ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'stop-following');
409 define('ACTIVITY_JOIN', NAMESPACE_ACTIVITY_SCHEMA . 'join');
411 define('ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post');
412 define('ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update');
413 define('ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag');
414 define('ACTIVITY_FAVORITE', NAMESPACE_ACTIVITY_SCHEMA . 'favorite');
415 define('ACTIVITY_UNFAVORITE', NAMESPACE_ACTIVITY_SCHEMA . 'unfavorite');
416 define('ACTIVITY_SHARE', NAMESPACE_ACTIVITY_SCHEMA . 'share');
417 define('ACTIVITY_DELETE', NAMESPACE_ACTIVITY_SCHEMA . 'delete');
419 define('ACTIVITY_POKE', NAMESPACE_ZOT . '/activity/poke');
421 define('ACTIVITY_OBJ_BOOKMARK', NAMESPACE_ACTIVITY_SCHEMA . 'bookmark');
422 define('ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment');
423 define('ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note');
424 define('ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person');
425 define('ACTIVITY_OBJ_IMAGE', NAMESPACE_ACTIVITY_SCHEMA . 'image');
426 define('ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo');
427 define('ACTIVITY_OBJ_VIDEO', NAMESPACE_ACTIVITY_SCHEMA . 'video');
428 define('ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo');
429 define('ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album');
430 define('ACTIVITY_OBJ_EVENT', NAMESPACE_ACTIVITY_SCHEMA . 'event');
431 define('ACTIVITY_OBJ_GROUP', NAMESPACE_ACTIVITY_SCHEMA . 'group');
432 define('ACTIVITY_OBJ_TAGTERM', NAMESPACE_DFRN . '/tagterm');
433 define('ACTIVITY_OBJ_PROFILE', NAMESPACE_DFRN . '/profile');
434 define('ACTIVITY_OBJ_QUESTION', 'http://activityschema.org/object/question');
440 * Item weight for query ordering
443 define('GRAVITY_PARENT', 0);
444 define('GRAVITY_LIKE', 3);
445 define('GRAVITY_COMMENT', 6);
451 * Process priority for the worker
454 define('PRIORITY_UNDEFINED', 0);
455 define('PRIORITY_CRITICAL', 10);
456 define('PRIORITY_HIGH', 20);
457 define('PRIORITY_MEDIUM', 30);
458 define('PRIORITY_LOW', 40);
459 define('PRIORITY_NEGLIGIBLE', 50);
463 * @name Social Relay settings
465 * See here: https://github.com/jaywink/social-relay
466 * and here: https://wiki.diasporafoundation.org/Relay_servers_for_public_posts
469 define('SR_SCOPE_NONE', '');
470 define('SR_SCOPE_ALL', 'all');
471 define('SR_SCOPE_TAGS', 'tags');
475 * Lowest possible date time value
477 define('NULL_DATE', '0001-01-01 00:00:00');
479 // Normally this constant is defined - but not if "pcntl" isn't installed
480 if (!defined("SIGTERM")) {
481 define("SIGTERM", 15);
485 * Depending on the PHP version this constant does exist - or not.
486 * See here: http://php.net/manual/en/curl.constants.php#117928
488 if (!defined('CURLE_OPERATION_TIMEDOUT')) {
489 define('CURLE_OPERATION_TIMEDOUT', CURLE_OPERATION_TIMEOUTED);
492 * Reverse the effect of magic_quotes_gpc if it is enabled.
493 * Please disable magic_quotes_gpc so we don't have to do this.
494 * See http://php.net/manual/en/security.magicquotes.disabling.php
498 error_reporting(E_ERROR | E_WARNING | E_PARSE);
502 // This has to be quite large to deal with embedded private photos
503 ini_set('pcre.backtrack_limit', 500000);
505 if (get_magic_quotes_gpc()) {
506 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
507 while (list($key, $val) = each($process)) {
508 foreach ($val as $k => $v) {
509 unset($process[$key][$k]);
511 $process[$key][stripslashes($k)] = $v;
512 $process[] = &$process[$key][stripslashes($k)];
514 $process[$key][stripslashes($k)] = stripslashes($v);
523 * @brief Retrieve the App structure
525 * Useful in functions which require it but don't get it passed to them
534 $a = new App(dirname(__DIR__));
541 * @brief Multi-purpose function to check variable state.
543 * Usage: x($var) or $x($array, 'key')
545 * returns false if variable/key is not set
546 * if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
547 * e.g. x('') or x(0) returns 0;
549 * @param string|array $s variable to check
550 * @param string $k key inside the array to check
554 function x($s, $k = null)
557 if ((is_array($s)) && (array_key_exists($k, $s))) {
576 * @brief Returns the baseurl.
578 * @see System::baseUrl()
581 * @TODO Function is deprecated and only used in some addons
585 return System::baseUrl();
589 * @brief Return absolut URL for given $path.
591 * @param string $path given path
595 function absurl($path)
597 if (strpos($path, '/') === 0) {
598 return z_path() . $path;
604 * @brief Function to check if request was an AJAX (xmlhttprequest) request.
610 return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
614 * @brief Function to check if request was an AJAX (xmlhttprequest) request.
616 * @param boolean $via_worker boolean Is the check run via the worker?
618 function check_db($via_worker)
620 $build = Config::get('system', 'build');
623 Config::set('system', 'build', DB_UPDATE_VERSION);
624 $build = DB_UPDATE_VERSION;
627 // We don't support upgrading from very old versions anymore
628 if ($build < NEW_UPDATE_ROUTINE_VERSION) {
629 die('You try to update from a version prior to database version 1170. The direct upgrade path is not supported. Please update to version 3.5.4 before updating to this version.');
632 if ($build != DB_UPDATE_VERSION) {
633 // When we cannot execute the database update via the worker, we will do it directly
634 if (!Worker::add(PRIORITY_CRITICAL, 'DBUpdate') && $via_worker) {
635 update_db(get_app());
641 * Sets the base url for use in cmdline programs which don't have
644 * @param object $a App
646 function check_url(App $a)
648 $url = Config::get('system', 'url');
650 // if the url isn't set or the stored url is radically different
651 // than the currently visited url, store the current value accordingly.
652 // "Radically different" ignores common variations such as http vs https
653 // and www.example.com vs example.com.
654 // We will only change the url to an ip address if there is no existing setting
657 $url = Config::set('system', 'url', System::baseUrl());
659 if ((!link_compare($url, System::baseUrl())) && (!preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/", $a->get_hostname))) {
660 $url = Config::set('system', 'url', System::baseUrl());
667 * @brief Automatic database updates
668 * @param object $a App
670 function update_db(App $a)
672 $build = Config::get('system', 'build');
675 Config::set('system', 'build', DB_UPDATE_VERSION);
676 $build = DB_UPDATE_VERSION;
679 if ($build != DB_UPDATE_VERSION) {
680 require_once 'update.php';
682 $stored = intval($build);
683 $current = intval(DB_UPDATE_VERSION);
684 if ($stored < $current) {
685 Config::load('database');
687 // Compare the current structure with the defined structure
688 $t = Config::get('database', 'dbupdate_' . DB_UPDATE_VERSION);
693 Config::set('database', 'dbupdate_' . DB_UPDATE_VERSION, time());
695 // run update routine
696 // it update the structure in one call
697 $retval = DBStructure::update(false, true);
699 DBStructure::updateFail(
705 Config::set('database', 'dbupdate_' . DB_UPDATE_VERSION, 'success');
708 // run any left update_nnnn functions in update.php
709 for ($x = $stored + 1; $x <= $current; $x++) {
710 $r = run_update_function($x);
721 function run_update_function($x)
723 if (function_exists('update_' . $x)) {
724 // There could be a lot of processes running or about to run.
725 // We want exactly one process to run the update command.
726 // So store the fact that we're taking responsibility
727 // after first checking to see if somebody else already has.
728 // If the update fails or times-out completely you may need to
729 // delete the config entry to try again.
731 $t = Config::get('database', 'update_' . $x);
735 Config::set('database', 'update_' . $x, time());
737 // call the specific update
739 $func = 'update_' . $x;
743 //send the administrator an e-mail
744 DBStructure::updateFail(
746 sprintf(t('Update %s failed. See error logs.'), $x)
750 Config::set('database', 'update_' . $x, 'success');
751 Config::set('system', 'build', $x + 1);
755 Config::set('database', 'update_' . $x, 'success');
756 Config::set('system', 'build', $x + 1);
763 * @brief Synchronise plugins:
765 * $a->config['system']['addon'] contains a comma-separated list of names
766 * of plugins/addons which are used on this system.
767 * Go through the database list of already installed addons, and if we have
768 * an entry, but it isn't in the config list, call the uninstall procedure
769 * and mark it uninstalled in the database (for now we'll remove it).
770 * Then go through the config list and if we have a plugin that isn't installed,
771 * call the install procedure and add it to the database.
773 * @param object $a App
775 function check_plugins(App $a)
777 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
778 if (DBM::is_result($r)) {
781 $installed = array();
784 $plugins = Config::get('system', 'addon');
785 $plugins_arr = array();
788 $plugins_arr = explode(',', str_replace(' ', '', $plugins));
791 $a->plugins = $plugins_arr;
793 $installed_arr = array();
795 if (count($installed)) {
796 foreach ($installed as $i) {
797 if (!in_array($i['name'], $plugins_arr)) {
798 uninstall_plugin($i['name']);
800 $installed_arr[] = $i['name'];
805 if (count($plugins_arr)) {
806 foreach ($plugins_arr as $p) {
807 if (!in_array($p, $installed_arr)) {
818 function get_guid($size = 16, $prefix = "")
822 $prefix = hash("crc32", $a->get_hostname());
825 while (strlen($prefix) < ($size - 13)) {
826 $prefix .= mt_rand();
830 $prefix = substr($prefix, 0, $size - 22);
831 return(str_replace(".", "", uniqid($prefix, true)));
833 $prefix = substr($prefix, 0, max($size - 13, 0));
834 return(uniqid($prefix));
839 * @brief Wrapper for adding a login box.
841 * @param bool $register If $register == true provide a registration link.
842 * This will most always depend on the value of $a->config['register_policy'].
843 * @param bool $hiddens optional
845 * @return string Returns the complete html for inserting into the page
847 * @hooks 'login_hook'
850 function login($register = false, $hiddens = false)
857 'title' => t('Create a New Account'),
858 'desc' => t('Register')
862 $noid = Config::get('system', 'no_openid');
864 $dest_url = $a->query_string;
867 $tpl = get_markup_template("logout.tpl");
869 $a->page['htmlhead'] .= replace_macros(
870 get_markup_template("login_head.tpl"),
872 '$baseurl' => $a->get_baseurl(true)
876 $tpl = get_markup_template("login.tpl");
877 $_SESSION['return_url'] = $a->query_string;
878 $a->module = 'login';
881 $o .= replace_macros(
884 '$dest_url' => $dest_url,
885 '$logout' => t('Logout'),
886 '$login' => t('Login'),
888 '$lname' => array('username', t('Nickname or Email: ') , '', ''),
889 '$lpassword' => array('password', t('Password: '), '', ''),
890 '$lremember' => array('remember', t('Remember me'), 0, ''),
893 '$lopenid' => array('openid_url', t('Or login using OpenID: '),'',''),
895 '$hiddens' => $hiddens,
899 '$lostpass' => t('Forgot your password?'),
900 '$lostlink' => t('Password Reset'),
902 '$tostitle' => t('Website Terms of Service'),
903 '$toslink' => t('terms of service'),
905 '$privacytitle' => t('Website Privacy Policy'),
906 '$privacylink' => t('privacy policy'),
910 call_hooks('login_hook', $o);
916 * @brief Used to end the current process, after saving session state.
920 if (!get_app()->is_backend()) {
921 session_write_close();
928 * @brief Redirect to another URL and terminate this process.
932 if (!strstr(normalise_link($s), "http://")) {
933 $s = System::baseUrl() . "/" . $s;
936 header("Location: $s");
941 * @brief Returns the user id of locally logged in user or false.
943 * @return int|bool user id or false
945 function local_user()
947 if (x($_SESSION, 'authenticated') && x($_SESSION, 'uid')) {
948 return intval($_SESSION['uid']);
954 * @brief Returns the public contact id of logged in user or false.
956 * @return int|bool public contact id or false
958 function public_contact()
960 static $public_contact_id = false;
962 if (!$public_contact_id && x($_SESSION, 'authenticated')) {
963 if (x($_SESSION, 'my_address')) {
965 $public_contact_id = intval(Contact::getIdForURL($_SESSION['my_address'], 0));
966 } elseif (x($_SESSION, 'visitor_home')) {
968 $public_contact_id = intval(Contact::getIdForURL($_SESSION['visitor_home'], 0));
970 } elseif (!x($_SESSION, 'authenticated')) {
971 $public_contact_id = false;
974 return $public_contact_id;
978 * @brief Returns contact id of authenticated site visitor or false
980 * @return int|bool visitor_id or false
982 function remote_user()
984 // You cannot be both local and remote
988 if (x($_SESSION, 'authenticated') && x($_SESSION, 'visitor_id')) {
989 return intval($_SESSION['visitor_id']);
995 * @brief Show an error message to user.
997 * This function save text in session, to be shown to the user at next page load
999 * @param string $s - Text of notice
1004 if (!x($_SESSION, 'sysmsg')) {
1005 $_SESSION['sysmsg'] = array();
1007 if ($a->interactive) {
1008 $_SESSION['sysmsg'][] = $s;
1013 * @brief Show an info message to user.
1015 * This function save text in session, to be shown to the user at next page load
1017 * @param string $s - Text of notice
1023 if (local_user() && PConfig::get(local_user(), 'system', 'ignore_info')) {
1027 if (!x($_SESSION, 'sysmsg_info')) {
1028 $_SESSION['sysmsg_info'] = array();
1030 if ($a->interactive) {
1031 $_SESSION['sysmsg_info'][] = $s;
1036 * @brief Wrapper around config to limit the text length of an incoming message
1040 function get_max_import_size()
1043 return (x($a->config, 'max_import_size') ? $a->config['max_import_size'] : 0);
1047 function current_theme()
1049 $app_base_themes = array('duepuntozero', 'dispy', 'quattro');
1055 // Find the theme that belongs to the user whose stuff we are looking at
1057 if ($a->profile_uid && ($a->profile_uid != local_user())) {
1059 "select theme from user where uid = %d limit 1",
1060 intval($a->profile_uid)
1062 if (DBM::is_result($r)) {
1063 $page_theme = $r[0]['theme'];
1067 // Allow folks to over-rule user themes and always use their own on their own site.
1068 // This works only if the user is on the same server
1070 if ($page_theme && local_user() && (local_user() != $a->profile_uid)) {
1071 if (PConfig::get(local_user(), 'system', 'always_my_theme')) {
1076 // $mobile_detect = new Mobile_Detect();
1077 // $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1078 $is_mobile = $a->is_mobile || $a->is_tablet;
1080 $standard_system_theme = Config::get('system', 'theme', '');
1081 $standard_theme_name = ((isset($_SESSION) && x($_SESSION, 'theme')) ? $_SESSION['theme'] : $standard_system_theme);
1084 if (isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
1085 $system_theme = $standard_system_theme;
1086 $theme_name = $standard_theme_name;
1088 $system_theme = Config::get('system', 'mobile-theme', '');
1089 if ($system_theme == '') {
1090 $system_theme = $standard_system_theme;
1092 $theme_name = ((isset($_SESSION) && x($_SESSION, 'mobile-theme')) ? $_SESSION['mobile-theme'] : $system_theme);
1094 if ($theme_name === '---') {
1095 // user has selected to have the mobile theme be the same as the normal one
1096 $system_theme = $standard_system_theme;
1097 $theme_name = $standard_theme_name;
1100 $theme_name = $page_theme;
1105 $system_theme = $standard_system_theme;
1106 $theme_name = $standard_theme_name;
1109 $theme_name = $page_theme;
1114 && (file_exists('view/theme/' . $theme_name . '/style.css')
1115 || file_exists('view/theme/' . $theme_name . '/style.php'))
1117 return($theme_name);
1120 foreach ($app_base_themes as $t) {
1121 if (file_exists('view/theme/' . $t . '/style.css')
1122 || file_exists('view/theme/' . $t . '/style.php')
1128 $fallback = array_merge(glob('view/theme/*/style.css'), glob('view/theme/*/style.php'));
1129 if (count($fallback)) {
1130 return (str_replace('view/theme/', '', substr($fallback[0], 0, -10)));
1133 /// @TODO No final return statement?
1137 * @brief Return full URL to theme which is currently in effect.
1139 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1143 function current_theme_url()
1147 $t = current_theme();
1149 $opts = (($a->profile_uid) ? '?f=&puid=' . $a->profile_uid : '');
1150 if (file_exists('view/theme/' . $t . '/style.php')) {
1151 return('view/theme/' . $t . '/style.pcss' . $opts);
1154 return('view/theme/' . $t . '/style.css');
1157 function feed_birthday($uid, $tz)
1160 * Determine the next birthday, but only if the birthday is published
1161 * in the default profile. We _could_ also look for a private profile that the
1162 * recipient can see, but somebody could get mad at us if they start getting
1163 * public birthday greetings when they haven't made this info public.
1165 * Assuming we are able to publish this info, we are then going to convert
1166 * the start time from the owner's timezone to UTC.
1168 * This will potentially solve the problem found with some social networks
1169 * where birthdays are converted to the viewer's timezone and salutations from
1170 * elsewhere in the world show up on the wrong day. We will convert it to the
1171 * viewer's timezone also, but first we are going to convert it from the birthday
1172 * person's timezone to GMT - so the viewer may find the birthday starting at
1173 * 6:00PM the day before, but that will correspond to midnight to the birthday person.
1182 "SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
1186 if (DBM::is_result($p)) {
1187 $tmp_dob = substr($p[0]['dob'], 5);
1188 if (intval($tmp_dob)) {
1189 $y = datetime_convert($tz, $tz, 'now', 'Y');
1190 $bd = $y . '-' . $tmp_dob . ' 00:00';
1191 $t_dob = strtotime($bd);
1192 $now = strtotime(datetime_convert($tz, $tz, 'now'));
1193 if ($t_dob < $now) {
1194 $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
1196 $birthday = datetime_convert($tz, 'UTC', $bd, ATOM_TIME);
1204 * @brief Check if current user has admin role.
1206 * @return bool true if user is an admin
1208 function is_site_admin()
1212 $adminlist = explode(",", str_replace(" ", "", $a->config['admin_email']));
1214 //if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
1215 if (local_user() && x($a->user, 'email') && x($a->config, 'admin_email') && in_array($a->user['email'], $adminlist)) {
1222 * @brief Returns querystring as string from a mapped array.
1224 * @param array $params mapped array with query parameters
1225 * @param string $name of parameter, default null
1229 function build_querystring($params, $name = null)
1232 foreach ($params as $key => $val) {
1233 if (is_array($val)) {
1234 /// @TODO maybe not compare against null, use is_null()
1235 if ($name == null) {
1236 $ret .= build_querystring($val, $key);
1238 $ret .= build_querystring($val, $name . "[$key]");
1241 $val = urlencode($val);
1242 /// @TODO maybe not compare against null, use is_null()
1243 if ($name != null) {
1244 /// @TODO two string concated, can be merged to one
1245 $ret .= $name . "[$key]" . "=$val&";
1247 $ret .= "$key=$val&";
1254 function explode_querystring($query)
1256 $arg_st = strpos($query, '?');
1257 if ($arg_st !== false) {
1258 $base = substr($query, 0, $arg_st);
1265 $args = explode('&', substr($query, $arg_st));
1266 foreach ($args as $k => $arg) {
1267 /// @TODO really compare type-safe here?
1272 $args = array_values($args);
1277 $args = array_values($args);
1287 * Returns the complete URL of the current page, e.g.: http(s)://something.com/network
1289 * Taken from http://webcheatsheet.com/php/get_current_page_url.php
1291 function curPageURL()
1294 if ($_SERVER["HTTPS"] == "on") {
1300 if ($_SERVER["SERVER_PORT"] != "80" && $_SERVER["SERVER_PORT"] != "443") {
1301 $pageURL .= $_SERVER["SERVER_NAME"] . ":" . $_SERVER["SERVER_PORT"] . $_SERVER["REQUEST_URI"];
1303 $pageURL .= $_SERVER["SERVER_NAME"] . $_SERVER["REQUEST_URI"];
1308 function random_digits($digits)
1311 for ($i = 0; $i < $digits; $i++) {
1312 /// @TODO rand() is different to mt_rand() and maybe lesser "random"
1318 function get_server()
1320 $server = Config::get("system", "directory");
1322 if ($server == "") {
1323 $server = "http://dir.friendica.social";
1329 function get_temppath()
1333 $temppath = Config::get("system", "temppath");
1335 if (($temppath != "") && App::directory_usable($temppath)) {
1336 // We have a temp path and it is usable
1337 return App::realpath($temppath);
1340 // We don't have a working preconfigured temp path, so we take the system path.
1341 $temppath = sys_get_temp_dir();
1343 // Check if it is usable
1344 if (($temppath != "") && App::directory_usable($temppath)) {
1345 // Always store the real path, not the path through symlinks
1346 $temppath = App::realpath($temppath);
1348 // To avoid any interferences with other systems we create our own directory
1349 $new_temppath = $temppath . "/" . $a->get_hostname();
1350 if (!is_dir($new_temppath)) {
1351 /// @TODO There is a mkdir()+chmod() upwards, maybe generalize this (+ configurable) into a function/method?
1352 mkdir($new_temppath);
1355 if (App::directory_usable($new_temppath)) {
1356 // The new path is usable, we are happy
1357 Config::set("system", "temppath", $new_temppath);
1358 return $new_temppath;
1360 // We can't create a subdirectory, strange.
1361 // But the directory seems to work, so we use it but don't store it.
1366 // Reaching this point means that the operating system is configured badly.
1370 function get_cachefile($file, $writemode = true)
1372 $cache = get_itemcachepath();
1374 if ((!$cache) || (!is_dir($cache))) {
1378 $subfolder = $cache . "/" . substr($file, 0, 2);
1380 $cachepath = $subfolder . "/" . $file;
1383 if (!is_dir($subfolder)) {
1385 chmod($subfolder, 0777);
1389 /// @TODO no need to put braces here
1393 function clear_cache($basepath = "", $path = "")
1396 $basepath = get_itemcachepath();
1400 if (($path == "") || (!is_dir($path))) {
1404 if (substr(realpath($path), 0, strlen($basepath)) != $basepath) {
1408 $cachetime = (int) Config::get('system', 'itemcache_duration');
1409 if ($cachetime == 0) {
1413 if (is_writable($path)) {
1414 if ($dh = opendir($path)) {
1415 while (($file = readdir($dh)) !== false) {
1416 $fullpath = $path . "/" . $file;
1417 if ((filetype($fullpath) == "dir") && ($file != ".") && ($file != "..")) {
1418 clear_cache($basepath, $fullpath);
1420 if ((filetype($fullpath) == "file") && (filectime($fullpath) < (time() - $cachetime))) {
1429 function get_itemcachepath()
1431 // Checking, if the cache is deactivated
1432 $cachetime = (int) Config::get('system', 'itemcache_duration');
1433 if ($cachetime < 0) {
1437 $itemcache = Config::get('system', 'itemcache');
1438 if (($itemcache != "") && App::directory_usable($itemcache)) {
1439 return App::realpath($itemcache);
1442 $temppath = get_temppath();
1444 if ($temppath != "") {
1445 $itemcache = $temppath . "/itemcache";
1446 if (!file_exists($itemcache) && !is_dir($itemcache)) {
1450 if (App::directory_usable($itemcache)) {
1451 Config::set("system", "itemcache", $itemcache);
1459 * @brief Returns the path where spool files are stored
1461 * @return string Spool path
1463 function get_spoolpath()
1465 $spoolpath = Config::get('system', 'spoolpath');
1466 if (($spoolpath != "") && App::directory_usable($spoolpath)) {
1467 // We have a spool path and it is usable
1471 // We don't have a working preconfigured spool path, so we take the temp path.
1472 $temppath = get_temppath();
1474 if ($temppath != "") {
1475 // To avoid any interferences with other systems we create our own directory
1476 $spoolpath = $temppath . "/spool";
1477 if (!is_dir($spoolpath)) {
1481 if (App::directory_usable($spoolpath)) {
1482 // The new path is usable, we are happy
1483 Config::set("system", "spoolpath", $spoolpath);
1486 // We can't create a subdirectory, strange.
1487 // But the directory seems to work, so we use it but don't store it.
1492 // Reaching this point means that the operating system is configured badly.
1497 if (!function_exists('exif_imagetype')) {
1498 function exif_imagetype($file)
1500 $size = getimagesize($file);
1505 function validate_include(&$file)
1509 $file = realpath($file);
1511 if (strpos($file, getcwd()) !== 0) {
1515 $file = str_replace(getcwd() . "/", "", $file, $count);
1520 if ($orig_file !== $file) {
1525 if (strpos($file, "include/") === 0) {
1529 if (strpos($file, "addon/") === 0) {
1533 // Simply return flag
1537 function current_load()
1539 if (!function_exists('sys_getloadavg')) {
1543 $load_arr = sys_getloadavg();
1545 if (!is_array($load_arr)) {
1549 return max($load_arr[0], $load_arr[1]);
1553 * @brief get c-style args
1559 return get_app()->argc;
1563 * @brief Returns the value of a argv key
1565 * @param int $x argv key
1566 * @return string Value of the argv key
1570 if (array_key_exists($x, get_app()->argv)) {
1571 return get_app()->argv[$x];
1578 * @brief Get the data which is needed for infinite scroll
1580 * For invinite scroll we need the page number of the actual page
1581 * and the the URI where the content of the next page comes from.
1582 * This data is needed for the js part in main.js.
1583 * Note: infinite scroll does only work for the network page (module)
1585 * @param string $module The name of the module (e.g. "network")
1586 * @return array Of infinite scroll data
1587 * 'pageno' => $pageno The number of the actual page
1588 * 'reload_uri' => $reload_uri The URI of the content we have to load
1590 function infinite_scroll_data($module)
1592 if (PConfig::get(local_user(), 'system', 'infinite_scroll')
1593 && ($module == "network") && ($_GET["mode"] != "minimal")
1595 // get the page number
1596 if (is_string($_GET["page"])) {
1597 $pageno = $_GET["page"];
1604 // try to get the uri from which we load the content
1605 foreach ($_GET as $param => $value) {
1606 if (($param != "page") && ($param != "q")) {
1607 $reload_uri .= "&" . $param . "=" . urlencode($value);
1611 if (($a->page_offset != "") && ! strstr($reload_uri, "&offset=")) {
1612 $reload_uri .= "&offset=" . urlencode($a->page_offset);
1615 $arr = array("pageno" => $pageno, "reload_uri" => $reload_uri);