3 define ( 'FRIENDIKA_VERSION', '2.2.1056' );
4 define ( 'DFRN_PROTOCOL_VERSION', '2.21' );
5 define ( 'DB_UPDATE_VERSION', 1076 );
7 define ( 'EOL', "<br />\r\n" );
8 define ( 'ATOM_TIME', 'Y-m-d\TH:i:s\Z' );
9 define ( 'DOWN_ARROW', '⇩' );
13 * Image storage quality. Lower numbers save space at cost of image detail.
14 * For ease of upgrade, please do not change here. Change jpeg quality with
15 * set_config('system','jpeg_quality',n) in .htconfig.php
16 * where n is netween 1 and 100, and with very poor results below about 50
20 define ( 'JPEG_QUALITY', 100 );
23 * SSL redirection policies
26 define ( 'SSL_POLICY_NONE', 0 );
27 define ( 'SSL_POLICY_FULL', 1 );
28 define ( 'SSL_POLICY_SELFSIGN', 2 );
35 define ( 'LOGGER_NORMAL', 0 );
36 define ( 'LOGGER_TRACE', 1 );
37 define ( 'LOGGER_DEBUG', 2 );
38 define ( 'LOGGER_DATA', 3 );
39 define ( 'LOGGER_ALL', 4 );
42 * registration policies
45 define ( 'REGISTER_CLOSED', 0 );
46 define ( 'REGISTER_APPROVE', 1 );
47 define ( 'REGISTER_OPEN', 2 );
51 * When used in contact records, this indicates that 'uid' has
52 * this relationship with contact['name']
55 define ( 'REL_VIP', 1); // other person is 'following' us
56 define ( 'REL_FAN', 2); // we are 'following' other person
57 define ( 'REL_BUD', 3); // mutual relationship
63 define ( 'HOOK_HOOK', 0);
64 define ( 'HOOK_FILE', 1);
65 define ( 'HOOK_FUNCTION', 2);
71 * PAGE_NORMAL is a typical personal profile account
72 * PAGE_SOAPBOX automatically approves all friend requests as REL_FAN, (readonly)
73 * PAGE_COMMUNITY automatically approves all friend requests as REL_FAN, but with
74 * write access to wall and comments (no email and not included in page owner's ACL lists)
75 * PAGE_FREELOVE automatically approves all friend requests as full friends (REL_BUD).
79 define ( 'PAGE_NORMAL', 0 );
80 define ( 'PAGE_SOAPBOX', 1 );
81 define ( 'PAGE_COMMUNITY', 2 );
82 define ( 'PAGE_FREELOVE', 3 );
85 * Network and protocol family types
88 define ( 'NETWORK_ZOT', 'zot!'); // Zot!
89 define ( 'NETWORK_DFRN', 'dfrn'); // Friendika, Mistpark, other DFRN implementations
90 define ( 'NETWORK_OSTATUS', 'stat'); // status.net, identi.ca, GNU-social, other OStatus implementations
91 define ( 'NETWORK_FEED', 'feed'); // RSS/Atom feeds with no known "post/notify" protocol
92 define ( 'NETWORK_DIASPORA', 'dspr'); // Diaspora
93 define ( 'NETWORK_MAIL', 'mail'); // IMAP/POP
94 define ( 'NETWORK_FACEBOOK', 'face'); // Facebook API
98 * Maximum number of "people who like (or don't like) this" that we will list by name
101 define ( 'MAX_LIKERS', 75);
104 * Communication timeout
107 define ( 'ZCURL_TIMEOUT' , (-1));
111 * email notification options
114 define ( 'NOTIFY_INTRO', 0x0001 );
115 define ( 'NOTIFY_CONFIRM', 0x0002 );
116 define ( 'NOTIFY_WALL', 0x0004 );
117 define ( 'NOTIFY_COMMENT', 0x0008 );
118 define ( 'NOTIFY_MAIL', 0x0010 );
121 * various namespaces we may need to parse
124 define ( 'NAMESPACE_ZOT', 'http://purl.org/macgirvin/zot' );
125 define ( 'NAMESPACE_DFRN' , 'http://purl.org/macgirvin/dfrn/1.0' );
126 define ( 'NAMESPACE_THREAD' , 'http://purl.org/syndication/thread/1.0' );
127 define ( 'NAMESPACE_TOMB' , 'http://purl.org/atompub/tombstones/1.0' );
128 define ( 'NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/' );
129 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
130 define ( 'NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia' );
131 define ( 'NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env' );
132 define ( 'NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe' );
133 define ( 'NAMESPACE_GEORSS', 'http://www.georss.org/georss' );
134 define ( 'NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0' );
135 define ( 'NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from' );
136 define ( 'NAMESPACE_OSTATUS', 'http://ostatus.org/schema/1.0' );
137 define ( 'NAMESPACE_STATUSNET', 'http://status.net/schema/api/1/' );
138 define ( 'NAMESPACE_ATOM1', 'http://www.w3.org/2005/Atom' );
140 * activity stream defines
143 define ( 'ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like' );
144 define ( 'ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike' );
145 define ( 'ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart' );
147 define ( 'ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
148 define ( 'ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
149 define ( 'ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
150 define ( 'ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post' );
151 define ( 'ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update' );
152 define ( 'ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
154 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
155 define ( 'ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note' );
156 define ( 'ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person' );
157 define ( 'ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
158 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
159 define ( 'ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
160 define ( 'ACTIVITY_OBJ_EVENT', NAMESPACE_ACTIVITY_SCHEMA . 'event' );
163 * item weight for query ordering
166 define ( 'GRAVITY_PARENT', 0);
167 define ( 'GRAVITY_LIKE', 3);
168 define ( 'GRAVITY_COMMENT', 6);
172 * Reverse the effect of magic_quotes_gpc if it is enabled.
173 * Please disable magic_quotes_gpc so we don't have to do this.
174 * See http://php.net/manual/en/security.magicquotes.disabling.php
179 error_reporting(E_ERROR | E_WARNING | E_PARSE);
181 ini_set('pcre.backtrack_limit', 250000);
184 if (get_magic_quotes_gpc()) {
185 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
186 while (list($key, $val) = each($process)) {
187 foreach ($val as $k => $v) {
188 unset($process[$key][$k]);
190 $process[$key][stripslashes($k)] = $v;
191 $process[] = &$process[$key][stripslashes($k)];
193 $process[$key][stripslashes($k)] = stripslashes($v);
205 require_once("include/pgettext.php");
212 * Our main application structure for the life of this page
213 * Primarily deals with the URL that got us here
214 * and tries to make some sense of it, and
215 * stores our page contents and config storage
216 * and anything else that might need to be passed around
217 * before we spit the page out.
221 if(! class_exists('App')) {
224 public $module_loaded = false;
225 public $query_string;
233 public $page_contact;
236 public $error = false;
246 public $interactive = true;
257 private $curl_headers;
259 function __construct() {
261 $this->config = array();
262 $this->page = array();
263 $this->pager= array();
265 $this->query_string = '';
269 $this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'])) ? 'https' : 'http' );
271 if(x($_SERVER,'SERVER_NAME')) {
272 $this->hostname = $_SERVER['SERVER_NAME'];
273 if(x($_SERVER,'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443)
274 $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
276 * Figure out if we are running at the top of a domain
277 * or in a sub-directory and adjust accordingly
280 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
281 if(isset($path) && strlen($path) && ($path != $this->path))
285 set_include_path("include/$this->hostname" . PATH_SEPARATOR . 'include' . PATH_SEPARATOR . '.' );
287 if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=")
288 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
290 $this->cmd = trim($_GET['q'],'/\\');
296 * Break the URL path into C style argc/argv style arguments for our
297 * modules. Given "http://example.com/module/arg1/arg2", $this->argc
298 * will be 3 (integer) and $this->argv will contain:
304 * There will always be one argument. If provided a naked domain
305 * URL, $this->argv[0] is set to "home".
309 $this->argv = explode('/',$this->cmd);
310 $this->argc = count($this->argv);
311 if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
312 $this->module = str_replace(".", "_", $this->argv[0]);
316 $this->argv = array('home');
317 $this->module = 'home';
321 * Special handling for the webfinger/lrdd host XRD file
322 * Just spit out the contents and exit.
325 if($this->cmd === '.well-known/host-meta') {
326 require_once('include/hostxrd.php');
327 hostxrd($this->get_baseurl());
332 * See if there is any page number information, and initialise
336 $this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1);
337 $this->pager['itemspage'] = 50;
338 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
339 $this->pager['total'] = 0;
342 function get_baseurl($ssl = false) {
344 $scheme = $this->scheme;
346 if(x($this->config,'ssl_policy')) {
347 if(($ssl) || ($this->config['ssl_policy'] == SSL_POLICY_FULL))
349 if(($this->config['ssl_policy'] == SSL_POLICY_SELFSIGN) && (local_user() || x($_POST,'auth-params')))
353 $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
354 return $this->baseurl;
357 function set_baseurl($url) {
358 $parsed = @parse_url($url);
360 $this->baseurl = $url;
363 $this->scheme = $parsed['scheme'];
365 $this->hostname = $parsed['host'];
366 if(x($parsed,'port'))
367 $this->hostname .= ':' . $parsed['port'];
368 if(x($parsed,'path'))
369 $this->path = trim($parsed['path'],'\\/');
374 function get_hostname() {
375 return $this->hostname;
378 function set_hostname($h) {
379 $this->hostname = $h;
382 function set_path($p) {
383 $this->path = trim(trim($p),'/');
386 function get_path() {
390 function set_pager_total($n) {
391 $this->pager['total'] = intval($n);
394 function set_pager_itemspage($n) {
395 $this->pager['itemspage'] = intval($n);
396 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
400 function init_pagehead() {
401 $this->page['title'] = $this->config['sitename'];
402 $tpl = file_get_contents('view/head.tpl');
403 $this->page['htmlhead'] = replace_macros($tpl,array(
404 '$baseurl' => $this->get_baseurl(),
405 '$generator' => 'Friendika' . ' ' . FRIENDIKA_VERSION,
406 '$delitem' => t('Delete this item?'),
407 '$comment' => t('Comment')
411 function set_curl_code($code) {
412 $this->curl_code = $code;
415 function get_curl_code() {
416 return $this->curl_code;
419 function set_curl_headers($headers) {
420 $this->curl_headers = $headers;
423 function get_curl_headers() {
424 return $this->curl_headers;
430 // retrieve the App structure
431 // useful in functions which require it but don't get it passed to them
433 if(! function_exists('get_app')) {
440 // Multi-purpose function to check variable state.
441 // Usage: x($var) or $x($array,'key')
442 // returns false if variable/key is not set
443 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
444 // e.g. x('') or x(0) returns 0;
446 if(! function_exists('x')) {
447 function x($s,$k = NULL) {
449 if((is_array($s)) && (array_key_exists($k,$s))) {
467 // called from db initialisation if db is dead.
469 if(! function_exists('system_unavailable')) {
470 function system_unavailable() {
471 include('system_unavailable.php');
477 // install and uninstall plugin
478 if (! function_exists('uninstall_plugin')){
479 function uninstall_plugin($plugin){
480 logger("Addons: uninstalling " . $plugin);
481 q("DELETE FROM `addon` WHERE `name` = '%s' LIMIT 1",
485 @include_once('addon/' . $plugin . '/' . $plugin . '.php');
486 if(function_exists($plugin . '_uninstall')) {
487 $func = $plugin . '_uninstall';
492 if (! function_exists('install_plugin')){
493 function install_plugin($plugin){
494 logger("Addons: installing " . $plugin);
495 $t = filemtime('addon/' . $plugin . '/' . $plugin . '.php');
496 @include_once('addon/' . $plugin . '/' . $plugin . '.php');
497 if(function_exists($plugin . '_install')) {
498 $func = $plugin . '_install';
501 $plugin_admin = (function_exists($plugin."_plugin_admin")?1:0);
503 $r = q("INSERT INTO `addon` (`name`, `installed`, `timestamp`, `plugin_admin`) VALUES ( '%s', 1, %d , %d ) ",
511 // Primarily involved with database upgrade, but also sets the
512 // base url for use in cmdline programs which don't have
513 // $_SERVER variables, and synchronising the state of installed plugins.
516 if(! function_exists('check_config')) {
517 function check_config(&$a) {
519 $build = get_config('system','build');
521 $build = set_config('system','build',DB_UPDATE_VERSION);
523 $url = get_config('system','url');
525 // if the url isn't set or the stored url is radically different
526 // than the currently visited url, store the current value accordingly.
527 // "Radically different" ignores common variations such as http vs https
528 // and www.example.com vs example.com.
530 if((! x($url)) || (! link_compare($url,$a->get_baseurl())))
531 $url = set_config('system','url',$a->get_baseurl());
533 if($build != DB_UPDATE_VERSION) {
534 $stored = intval($build);
535 $current = intval(DB_UPDATE_VERSION);
536 if(($stored < $current) && file_exists('update.php')) {
538 // We're reporting a different version than what is currently installed.
539 // Run any existing update scripts to bring the database up to current.
541 require_once('update.php');
543 // make sure that boot.php and update.php are the same release, we might be
544 // updating right this very second and the correct version of the update.php
545 // file may not be here yet. This can happen on a very busy site.
547 if(DB_UPDATE_VERSION == UPDATE_VERSION) {
549 for($x = $stored; $x < $current; $x ++) {
550 if(function_exists('update_' . $x)) {
551 $func = 'update_' . $x;
555 set_config('system','build', DB_UPDATE_VERSION);
562 * Synchronise plugins:
564 * $a->config['system']['addon'] contains a comma-separated list of names
565 * of plugins/addons which are used on this system.
566 * Go through the database list of already installed addons, and if we have
567 * an entry, but it isn't in the config list, call the uninstall procedure
568 * and mark it uninstalled in the database (for now we'll remove it).
569 * Then go through the config list and if we have a plugin that isn't installed,
570 * call the install procedure and add it to the database.
574 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
578 $installed = array();
580 $plugins = get_config('system','addon');
581 $plugins_arr = array();
584 $plugins_arr = explode(',',str_replace(' ', '',$plugins));
586 $a->plugins = $plugins_arr;
588 $installed_arr = array();
590 if(count($installed)) {
591 foreach($installed as $i) {
592 if(! in_array($i['name'],$plugins_arr)) {
593 uninstall_plugin($i['name']);
596 $installed_arr[] = $i['name'];
600 if(count($plugins_arr)) {
601 foreach($plugins_arr as $p) {
602 if(! in_array($p,$installed_arr)) {
614 // reload all updated plugins
616 if(! function_exists('reload_plugins')) {
617 function reload_plugins() {
618 $plugins = get_config('system','addon');
619 if(strlen($plugins)) {
621 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
625 $installed = array();
627 $parr = explode(',',$plugins);
629 foreach($parr as $pl) {
632 $t = filemtime('addon/' . $pl . '/' . $pl . '.php');
633 foreach($installed as $i) {
634 if(($i['name'] == $pl) && ($i['timestamp'] != $t)) {
635 logger('Reloading plugin: ' . $i['name']);
636 @include_once('addon/' . $pl . '/' . $pl . '.php');
638 if(function_exists($pl . '_uninstall')) {
639 $func = $pl . '_uninstall';
642 if(function_exists($pl . '_install')) {
643 $func = $pl . '_install';
646 q("UPDATE `addon` SET `timestamp` = %d WHERE `id` = %d LIMIT 1",
659 // This is our template processor.
660 // $s is the string requiring macro substitution.
661 // $r is an array of key value pairs (search => replace)
662 // returns substituted string.
663 // WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other.
664 // For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing,
665 // depending on the order in which they were declared in the array.
667 require_once("include/template_processor.php");
669 if(! function_exists('replace_macros')) {
670 function replace_macros($s,$r) {
673 return $t->replace($s,$r);
678 // curl wrapper. If binary flag is true, return binary
681 if(! function_exists('fetch_url')) {
682 function fetch_url($url,$binary = false, &$redirects = 0) {
686 $ch = curl_init($url);
687 if(($redirects > 8) || (! $ch))
690 curl_setopt($ch, CURLOPT_HEADER, true);
691 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
692 curl_setopt($ch, CURLOPT_USERAGENT, "Friendika");
694 $curl_time = intval(get_config('system','curl_timeout'));
695 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
697 // by default we will allow self-signed certs
698 // but you can override this
700 $check_cert = get_config('system','verifyssl');
701 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
703 $prx = get_config('system','proxy');
705 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
706 curl_setopt($ch, CURLOPT_PROXY, $prx);
707 $prxusr = get_config('system','proxyuser');
709 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
712 curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
714 $a->set_curl_code(0);
716 // don't let curl abort the entire application
717 // if it throws any errors.
719 $s = @curl_exec($ch);
722 $curl_info = curl_getinfo($ch);
723 $http_code = $curl_info['http_code'];
727 // Pull out multiple headers, e.g. proxy and continuation headers
728 // allow for HTTP/2.x without fixing code
730 while(preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/',$base)) {
731 $chunk = substr($base,0,strpos($base,"\r\n\r\n")+4);
733 $base = substr($base,strlen($chunk));
736 if($http_code == 301 || $http_code == 302 || $http_code == 303 || $http_code == 307) {
738 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
739 $url = trim(array_pop($matches));
740 $url_parsed = @parse_url($url);
741 if (isset($url_parsed)) {
743 return fetch_url($url,$binary,$redirects);
747 $a->set_curl_code($http_code);
749 $body = substr($s,strlen($header));
751 $a->set_curl_headers($header);
757 // post request to $url. $params is an array of post variables.
759 if(! function_exists('post_url')) {
760 function post_url($url,$params, $headers = null, &$redirects = 0) {
762 $ch = curl_init($url);
763 if(($redirects > 8) || (! $ch))
766 curl_setopt($ch, CURLOPT_HEADER, true);
767 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
768 curl_setopt($ch, CURLOPT_POST,1);
769 curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
770 curl_setopt($ch, CURLOPT_USERAGENT, "Friendika");
772 $curl_time = intval(get_config('system','curl_timeout'));
773 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
775 if(defined('LIGHTTPD')) {
776 if(!is_array($headers)) {
777 $headers = array('Expect:');
779 if(!in_array('Expect:', $headers)) {
780 array_push($headers, 'Expect:');
785 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
787 $check_cert = get_config('system','verifyssl');
788 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
789 $prx = get_config('system','proxy');
791 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
792 curl_setopt($ch, CURLOPT_PROXY, $prx);
793 $prxusr = get_config('system','proxyuser');
795 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
798 $a->set_curl_code(0);
800 // don't let curl abort the entire application
801 // if it throws any errors.
803 $s = @curl_exec($ch);
806 $curl_info = curl_getinfo($ch);
807 $http_code = $curl_info['http_code'];
811 // Pull out multiple headers, e.g. proxy and continuation headers
812 // allow for HTTP/2.x without fixing code
814 while(preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/',$base)) {
815 $chunk = substr($base,0,strpos($base,"\r\n\r\n")+4);
817 $base = substr($base,strlen($chunk));
820 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
822 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
823 $url = trim(array_pop($matches));
824 $url_parsed = @parse_url($url);
825 if (isset($url_parsed)) {
827 return post_url($url,$binary,$headers,$redirects);
830 $a->set_curl_code($http_code);
831 $body = substr($s,strlen($header));
833 $a->set_curl_headers($header);
839 // random hash, 64 chars
841 if(! function_exists('random_string')) {
842 function random_string() {
843 return(hash('sha256',uniqid(rand(),true)));
847 * This is our primary input filter.
849 * The high bit hack only involved some old IE browser, forget which (IE5/Mac?)
850 * that had an XSS attack vector due to stripping the high-bit on an 8-bit character
851 * after cleansing, and angle chars with the high bit set could get through as markup.
853 * This is now disabled because it was interfering with some legitimate unicode sequences
854 * and hopefully there aren't a lot of those browsers left.
856 * Use this on any text input where angle chars are not valid or permitted
857 * They will be replaced with safer brackets. This may be filtered further
858 * if these are not allowed either.
862 if(! function_exists('notags')) {
863 function notags($string) {
865 return(str_replace(array("<",">"), array('[',']'), $string));
867 // High-bit filter no longer used
868 // return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string));
871 // use this on "body" or "content" input where angle chars shouldn't be removed,
872 // and allow them to be safely displayed.
874 if(! function_exists('escape_tags')) {
875 function escape_tags($string) {
877 return(htmlspecialchars($string));
880 // wrapper for adding a login box. If $register == true provide a registration
881 // link. This will most always depend on the value of $a->config['register_policy'].
882 // returns the complete html for inserting into the page
884 if(! function_exists('login')) {
885 function login($register = false) {
887 $register_tpl = (($register) ? get_markup_template("register-link.tpl") : "");
889 $register_html = replace_macros($register_tpl,array(
890 '$title' => t('Create a New Account'),
891 '$desc' => t('Register')
894 $noid = get_config('system','no_openid');
896 $classname = 'no-openid';
897 $namelabel = t('Nickname or Email address: ');
898 $passlabel = t('Password: ');
902 $classname = 'openid';
903 $namelabel = t('Nickname/Email/OpenID: ');
904 $passlabel = t("Password \x28if not OpenID\x29: ");
907 $lostpass = t('Forgot your password?');
908 $lostlink = t('Password Reset');
911 $tpl = get_markup_template("logout.tpl");
914 $tpl = get_markup_template("login.tpl");
918 $o = '<script type="text/javascript"> $(document).ready(function() { $("#login-name").focus();} );</script>';
920 $o .= replace_macros($tpl,array(
921 '$logout' => t('Logout'),
922 '$register_html' => $register_html,
923 '$classname' => $classname,
924 '$namelabel' => $namelabel,
925 '$passlabel' => $passlabel,
927 '$lostpass' => $lostpass,
928 '$lostlink' => $lostlink
934 // generate a string that's random, but usually pronounceable.
935 // used to generate initial passwords
937 if(! function_exists('autoname')) {
938 function autoname($len) {
940 $vowels = array('a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u');
941 if(mt_rand(0,5) == 4)
959 's','sc','sh','sm','sp','st',
967 $midcons = array('ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
968 'nd','ng','nk','nt','rn','rp','rt');
970 $noend = array('bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
971 'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh');
973 $start = mt_rand(0,2);
981 for ($x = 0; $x < $len; $x ++) {
982 $r = mt_rand(0,count($table) - 1);
985 if($table == $vowels)
986 $table = array_merge($cons,$midcons);
992 $word = substr($word,0,$len);
994 foreach($noend as $noe) {
995 if((strlen($word) > 2) && (substr($word,-2) == $noe)) {
996 $word = substr($word,0,-1);
1000 if(substr($word,-1) == 'q')
1001 $word = substr($word,0,-1);
1005 // Used to end the current process, after saving session state.
1007 if(! function_exists('killme')) {
1009 session_write_close();
1013 // redirect to another URL and terminate this process.
1015 if(! function_exists('goaway')) {
1016 function goaway($s) {
1017 header("Location: $s");
1021 // Generic XML return
1022 // Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
1023 // of $st and an optional text <message> of $message and terminates the current process.
1025 if(! function_exists('xml_status')) {
1026 function xml_status($st, $message = '') {
1028 $xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
1031 logger('xml_status returning non_zero: ' . $st . " message=" . $message);
1033 header( "Content-type: text/xml" );
1034 echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
1035 echo "<result>\r\n\t<status>$st</status>\r\n$xml_message</result>\r\n";
1039 // Returns the uid of locally logged in user or false.
1041 if(! function_exists('local_user')) {
1042 function local_user() {
1043 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
1044 return intval($_SESSION['uid']);
1048 // Returns contact id of authenticated site visitor or false
1050 if(! function_exists('remote_user')) {
1051 function remote_user() {
1052 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
1053 return intval($_SESSION['visitor_id']);
1057 // contents of $s are displayed prominently on the page the next time
1058 // a page is loaded. Usually used for errors or alerts.
1060 if(! function_exists('notice')) {
1061 function notice($s) {
1064 $_SESSION['sysmsg'] .= $s;
1066 if(! function_exists('info')) {
1070 $_SESSION['sysmsg_info'] .= $s;
1074 // wrapper around config to limit the text length of an incoming message
1076 if(! function_exists('get_max_import_size')) {
1077 function get_max_import_size() {
1079 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
1083 // escape text ($str) for XML transport
1084 // returns escaped text.
1086 if(! function_exists('xmlify')) {
1087 function xmlify($str) {
1090 for($x = 0; $x < strlen($str); $x ++) {
1101 $buffer .= ''';
1104 $buffer .= '"';
1120 $buffer = trim($buffer);
1125 // pass xml escaped text ($s), returns unescaped text
1127 if(! function_exists('unxmlify')) {
1128 function unxmlify($s) {
1129 $ret = str_replace('&','&', $s);
1130 $ret = str_replace(array('<','>','"','''),array('<','>','"',"'"),$ret);
1134 // convenience wrapper, reverse the operation "bin2hex"
1136 if(! function_exists('hex2bin')) {
1137 function hex2bin($s) {
1138 if(! ctype_xdigit($s)) {
1139 logger('hex2bin: illegal input: ' . print_r(debug_backtrace(), true));
1143 return(pack("H*",$s));
1146 // Automatic pagination.
1147 // To use, get the count of total items.
1148 // Then call $a->set_pager_total($number_items);
1149 // Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page
1150 // Then call paginate($a) after the end of the display loop to insert the pager block on the page
1151 // (assuming there are enough items to paginate).
1152 // When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage']
1153 // will limit the results to the correct items for the current page.
1154 // The actual page handling is then accomplished at the application layer.
1156 if(! function_exists('paginate')) {
1157 function paginate(&$a) {
1159 $stripped = preg_replace('/(&page=[0-9]*)/','',$a->query_string);
1160 $stripped = str_replace('q=','',$stripped);
1161 $stripped = trim($stripped,'/');
1162 $pagenum = $a->pager['page'];
1163 $url = $a->get_baseurl() . '/' . $stripped;
1166 if($a->pager['total'] > $a->pager['itemspage']) {
1167 $o .= '<div class="pager">';
1168 if($a->pager['page'] != 1)
1169 $o .= '<span class="pager_prev">'."<a href=\"$url".'&page='.($a->pager['page'] - 1).'">' . t('prev') . '</a></span> ';
1171 $o .= "<span class=\"pager_first\"><a href=\"$url"."&page=1\">" . t('first') . "</a></span> ";
1173 $numpages = $a->pager['total'] / $a->pager['itemspage'];
1176 $numstop = $numpages;
1178 if($numpages > 14) {
1179 $numstart = (($pagenum > 7) ? ($pagenum - 7) : 1);
1180 $numstop = (($pagenum > ($numpages - 7)) ? $numpages : ($numstart + 14));
1183 for($i = $numstart; $i <= $numstop; $i++){
1184 if($i == $a->pager['page'])
1185 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1187 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1191 if(($a->pager['total'] % $a->pager['itemspage']) != 0) {
1192 if($i == $a->pager['page'])
1193 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1195 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1199 $lastpage = (($numpages > intval($numpages)) ? intval($numpages)+1 : $numpages);
1200 $o .= "<span class=\"pager_last\"><a href=\"$url"."&page=$lastpage\">" . t('last') . "</a></span> ";
1202 if(($a->pager['total'] - ($a->pager['itemspage'] * $a->pager['page'])) > 0)
1203 $o .= '<span class="pager_next">'."<a href=\"$url"."&page=".($a->pager['page'] + 1).'">' . t('next') . '</a></span>';
1204 $o .= '</div>'."\r\n";
1209 // Turn user/group ACLs stored as angle bracketed text into arrays
1211 if(! function_exists('expand_acl')) {
1212 function expand_acl($s) {
1213 // turn string array of angle-bracketed elements into numeric array
1214 // e.g. "<1><2><3>" => array(1,2,3);
1218 $t = str_replace('<','',$s);
1219 $a = explode('>',$t);
1220 foreach($a as $aa) {
1222 $ret[] = intval($aa);
1228 // Used to wrap ACL elements in angle brackets for storage
1230 if(! function_exists('sanitise_acl')) {
1231 function sanitise_acl(&$item) {
1233 $item = '<' . intval(notags(trim($item))) . '>';
1238 // retrieve a "family" of config variables from database to cached storage
1240 if(! function_exists('load_config')) {
1241 function load_config($family) {
1243 $r = q("SELECT * FROM `config` WHERE `cat` = '%s'",
1247 foreach($r as $rr) {
1249 if ($rr['cat'] === 'config') {
1250 $a->config[$k] = $rr['v'];
1252 $a->config[$family][$k] = $rr['v'];
1258 // get a particular config variable given the family name
1259 // and key. Returns false if not set.
1260 // $instore is only used by the set_config function
1261 // to determine if the key already exists in the DB
1262 // If a key is found in the DB but doesn't exist in
1263 // local config cache, pull it into the cache so we don't have
1264 // to hit the DB again for this item.
1266 if(! function_exists('get_config')) {
1267 function get_config($family, $key, $instore = false) {
1272 if(isset($a->config[$family][$key])) {
1273 if($a->config[$family][$key] === '!<unset>!') {
1276 return $a->config[$family][$key];
1279 $ret = q("SELECT `v` FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1284 // manage array value
1285 $val = (preg_match("|^a:[0-9]+:{.*}$|", $ret[0]['v'])?unserialize( $ret[0]['v']):$ret[0]['v']);
1286 $a->config[$family][$key] = $val;
1290 $a->config[$family][$key] = '!<unset>!';
1295 // Store a config value ($value) in the category ($family)
1296 // under the key ($key)
1297 // Return the value, or false if the database update failed
1299 if(! function_exists('set_config')) {
1300 function set_config($family,$key,$value) {
1303 // manage array value
1304 $dbvalue = (is_array($value)?serialize($value):$value);
1306 if(get_config($family,$key,true) === false) {
1307 $a->config[$family][$key] = $value;
1308 $ret = q("INSERT INTO `config` ( `cat`, `k`, `v` ) VALUES ( '%s', '%s', '%s' ) ",
1318 $ret = q("UPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1324 $a->config[$family][$key] = $value;
1332 if(! function_exists('load_pconfig')) {
1333 function load_pconfig($uid,$family) {
1335 $r = q("SELECT * FROM `pconfig` WHERE `cat` = '%s' AND `uid` = %d",
1340 foreach($r as $rr) {
1342 $a->config[$uid][$family][$k] = $rr['v'];
1349 if(! function_exists('get_pconfig')) {
1350 function get_pconfig($uid,$family, $key, $instore = false) {
1355 if(isset($a->config[$uid][$family][$key])) {
1356 if($a->config[$uid][$family][$key] === '!<unset>!') {
1359 return $a->config[$uid][$family][$key];
1363 $ret = q("SELECT `v` FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1370 $a->config[$uid][$family][$key] = $ret[0]['v'];
1371 return $ret[0]['v'];
1374 $a->config[$uid][$family][$key] = '!<unset>!';
1379 if(! function_exists('del_config')) {
1380 function del_config($family,$key) {
1383 if(x($a->config[$family],$key))
1384 unset($a->config[$family][$key]);
1385 $ret = q("DELETE FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1394 // Same as above functions except these are for personal config storage and take an
1395 // additional $uid argument.
1397 if(! function_exists('set_pconfig')) {
1398 function set_pconfig($uid,$family,$key,$value) {
1402 if(get_pconfig($uid,$family,$key,true) === false) {
1403 $a->config[$uid][$family][$key] = $value;
1404 $ret = q("INSERT INTO `pconfig` ( `uid`, `cat`, `k`, `v` ) VALUES ( %d, '%s', '%s', '%s' ) ",
1414 $ret = q("UPDATE `pconfig` SET `v` = '%s' WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1421 $a->config[$uid][$family][$key] = $value;
1428 if(! function_exists('del_pconfig')) {
1429 function del_pconfig($uid,$family,$key) {
1432 if(x($a->config[$uid][$family],$key))
1433 unset($a->config[$uid][$family][$key]);
1434 $ret = q("DELETE FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1443 // convert an XML document to a normalised, case-corrected array
1444 // used by webfinger
1446 if(! function_exists('convert_xml_element_to_array')) {
1447 function convert_xml_element_to_array($xml_element, &$recursion_depth=0) {
1449 // If we're getting too deep, bail out
1450 if ($recursion_depth > 512) {
1454 if (!is_string($xml_element) &&
1455 !is_array($xml_element) &&
1456 (get_class($xml_element) == 'SimpleXMLElement')) {
1457 $xml_element_copy = $xml_element;
1458 $xml_element = get_object_vars($xml_element);
1461 if (is_array($xml_element)) {
1462 $result_array = array();
1463 if (count($xml_element) <= 0) {
1464 return (trim(strval($xml_element_copy)));
1467 foreach($xml_element as $key=>$value) {
1470 $result_array[strtolower($key)] =
1471 convert_xml_element_to_array($value, $recursion_depth);
1474 if ($recursion_depth == 0) {
1475 $temp_array = $result_array;
1476 $result_array = array(
1477 strtolower($xml_element_copy->getName()) => $temp_array,
1481 return ($result_array);
1484 return (trim(strval($xml_element)));
1488 // Given an email style address, perform webfinger lookup and
1489 // return the resulting DFRN profile URL, or if no DFRN profile URL
1490 // is located, returns an OStatus subscription template (prefixed
1491 // with the string 'stat:' to identify it as on OStatus template).
1492 // If this isn't an email style address just return $s.
1493 // Return an empty string if email-style addresses but webfinger fails,
1494 // or if the resultant personal XRD doesn't contain a supported
1495 // subscription/friend-request attribute.
1497 if(! function_exists('webfinger_dfrn')) {
1498 function webfinger_dfrn($s) {
1499 if(! strstr($s,'@')) {
1502 $links = webfinger($s);
1503 logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA);
1505 foreach($links as $link)
1506 if($link['@attributes']['rel'] === NAMESPACE_DFRN)
1507 return $link['@attributes']['href'];
1508 foreach($links as $link)
1509 if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB)
1510 return 'stat:' . $link['@attributes']['template'];
1515 // Given an email style address, perform webfinger lookup and
1516 // return the array of link attributes from the personal XRD file.
1517 // On error/failure return an empty array.
1520 if(! function_exists('webfinger')) {
1521 function webfinger($s) {
1523 if(strstr($s,'@')) {
1524 $host = substr($s,strpos($s,'@') + 1);
1527 $tpl = fetch_lrdd_template($host);
1528 logger('webfinger: lrdd template: ' . $tpl);
1530 $pxrd = str_replace('{uri}', urlencode('acct:' . $s), $tpl);
1531 logger('webfinger: pxrd: ' . $pxrd);
1532 $links = fetch_xrd_links($pxrd);
1533 if(! count($links)) {
1534 // try with double slashes
1535 $pxrd = str_replace('{uri}', urlencode('acct://' . $s), $tpl);
1536 logger('webfinger: pxrd: ' . $pxrd);
1537 $links = fetch_xrd_links($pxrd);
1545 if(! function_exists('lrdd')) {
1546 function lrdd($uri) {
1550 // default priority is host priority, host-meta first
1554 // All we have is an email address. Resource-priority is irrelevant
1555 // because our URI isn't directly resolvable.
1557 if(strstr($uri,'@')) {
1558 return(webfinger($uri));
1561 // get the host meta file
1563 $host = @parse_url($uri);
1566 $url = ((x($host,'scheme')) ? $host['scheme'] : 'http') . '://';
1567 $url .= $host['host'] . '/.well-known/host-meta' ;
1572 logger('lrdd: constructed url: ' . $url);
1574 $xml = fetch_url($url);
1575 $headers = $a->get_curl_headers();
1580 logger('lrdd: host_meta: ' . $xml, LOGGER_DATA);
1582 $h = parse_xml_string($xml);
1586 $arr = convert_xml_element_to_array($h);
1588 if(isset($arr['xrd']['property'])) {
1589 $property = $arr['crd']['property'];
1590 if(! isset($property[0]))
1591 $properties = array($property);
1593 $properties = $property;
1594 foreach($properties as $prop)
1595 if((string) $prop['@attributes'] === 'http://lrdd.net/priority/resource')
1596 $priority = 'resource';
1599 // save the links in case we need them
1603 if(isset($arr['xrd']['link'])) {
1604 $link = $arr['xrd']['link'];
1605 if(! isset($link[0]))
1606 $links = array($link);
1611 // do we have a template or href?
1614 foreach($links as $link) {
1615 if($link['@attributes']['rel'] && attribute_contains($link['@attributes']['rel'],'lrdd')) {
1616 if(x($link['@attributes'],'template'))
1617 $tpl = $link['@attributes']['template'];
1618 elseif(x($link['@attributes'],'href'))
1619 $href = $link['@attributes']['href'];
1624 if((! isset($tpl)) || (! strpos($tpl,'{uri}')))
1627 if($priority === 'host') {
1629 $pxrd = str_replace('{uri}', urlencode($uri), $tpl);
1630 elseif(isset($href))
1633 logger('lrdd: (host priority) pxrd: ' . $pxrd);
1634 $links = fetch_xrd_links($pxrd);
1638 $lines = explode("\n",$headers);
1640 foreach($lines as $line) {
1641 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1642 return(fetch_xrd_links($matches[1]));
1650 // priority 'resource'
1653 $html = fetch_url($uri);
1654 $headers = $a->get_curl_headers();
1655 logger('lrdd: headers=' . $headers, LOGGER_DEBUG);
1657 // don't try and parse raw xml as html
1658 if(! strstr($html,'<?xml')) {
1659 require_once('library/HTML5/Parser.php');
1660 $dom = @HTML5_Parser::parse($html);
1663 $items = $dom->getElementsByTagName('link');
1664 foreach($items as $item) {
1665 $x = $item->getAttribute('rel');
1667 $pagelink = $item->getAttribute('href');
1674 if(isset($pagelink))
1675 return(fetch_xrd_links($pagelink));
1677 // next look in HTTP headers
1679 $lines = explode("\n",$headers);
1681 foreach($lines as $line) {
1682 // TODO alter the following regex to support multiple relations (space separated)
1683 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1684 $pagelink = $matches[1];
1687 // don't try and run feeds through the html5 parser
1688 if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml'))))
1690 if(stristr($html,'<rss') || stristr($html,'<feed'))
1695 if(isset($pagelink))
1696 return(fetch_xrd_links($pagelink));
1698 // If we haven't found any links, return the host xrd links (which we have already fetched)
1709 // Given a host name, locate the LRDD template from that
1710 // host. Returns the LRDD template or an empty string on
1713 if(! function_exists('fetch_lrdd_template')) {
1714 function fetch_lrdd_template($host) {
1717 $url1 = 'https://' . $host . '/.well-known/host-meta' ;
1718 $url2 = 'http://' . $host . '/.well-known/host-meta' ;
1719 $links = fetch_xrd_links($url1);
1720 logger('fetch_lrdd_template from: ' . $url1);
1721 logger('template (https): ' . print_r($links,true));
1722 if(! count($links)) {
1723 logger('fetch_lrdd_template from: ' . $url2);
1724 $links = fetch_xrd_links($url2);
1725 logger('template (http): ' . print_r($links,true));
1728 foreach($links as $link)
1729 if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd')
1730 $tpl = $link['@attributes']['template'];
1732 if(! strpos($tpl,'{uri}'))
1737 // Given a URL, retrieve the page as an XRD document.
1738 // Return an array of links.
1739 // on error/failure return empty array.
1741 if(! function_exists('fetch_xrd_links')) {
1742 function fetch_xrd_links($url) {
1745 $xml = fetch_url($url);
1749 logger('fetch_xrd_links: ' . $xml, LOGGER_DATA);
1750 $h = parse_xml_string($xml);
1754 $arr = convert_xml_element_to_array($h);
1758 if(isset($arr['xrd']['link'])) {
1759 $link = $arr['xrd']['link'];
1760 if(! isset($link[0]))
1761 $links = array($link);
1765 if(isset($arr['xrd']['alias'])) {
1766 $alias = $arr['xrd']['alias'];
1767 if(! isset($alias[0]))
1768 $aliases = array($alias);
1771 foreach($aliases as $alias) {
1772 $links[]['@attributes'] = array('rel' => 'alias' , 'href' => $alias);
1776 logger('fetch_xrd_links: ' . print_r($links,true), LOGGER_DATA);
1782 // Convert an ACL array to a storable string
1784 if(! function_exists('perms2str')) {
1785 function perms2str($p) {
1788 if(is_array($tmp)) {
1789 array_walk($tmp,'sanitise_acl');
1790 $ret = implode('',$tmp);
1795 // generate a guaranteed unique (for this domain) item ID for ATOM
1796 // safe from birthday paradox
1798 if(! function_exists('item_new_uri')) {
1799 function item_new_uri($hostname,$uid) {
1803 $hash = random_string();
1805 $uri = "urn:X-dfrn:" . $hostname . ':' . $uid . ':' . $hash;
1807 $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
1811 } while($dups == true);
1815 // Generate a guaranteed unique photo ID.
1816 // safe from birthday paradox
1818 if(! function_exists('photo_new_resource')) {
1819 function photo_new_resource() {
1823 $resource = hash('md5',uniqid(mt_rand(),true));
1824 $r = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1",
1829 } while($found == true);
1834 // Take a URL from the wild, prepend http:// if necessary
1835 // and check DNS to see if it's real
1836 // return true if it's OK, false if something is wrong with it
1838 if(! function_exists('validate_url')) {
1839 function validate_url(&$url) {
1840 if(substr($url,0,4) != 'http')
1841 $url = 'http://' . $url;
1842 $h = @parse_url($url);
1844 if(($h) && (dns_get_record($h['host'], DNS_A + DNS_CNAME + DNS_PTR))) {
1850 // checks that email is an actual resolvable internet address
1852 if(! function_exists('validate_email')) {
1853 function validate_email($addr) {
1855 if(! strpos($addr,'@'))
1857 $h = substr($addr,strpos($addr,'@') + 1);
1859 if(($h) && (dns_get_record($h, DNS_A + DNS_CNAME + DNS_PTR + DNS_MX))) {
1865 // Check $url against our list of allowed sites,
1866 // wildcards allowed. If allowed_sites is unset return true;
1867 // If url is allowed, return true.
1868 // otherwise, return false
1870 if(! function_exists('allowed_url')) {
1871 function allowed_url($url) {
1873 $h = @parse_url($url);
1879 $str_allowed = get_config('system','allowed_sites');
1885 $host = strtolower($h['host']);
1887 // always allow our own site
1889 if($host == strtolower($_SERVER['SERVER_NAME']))
1892 $fnmatch = function_exists('fnmatch');
1893 $allowed = explode(',',$str_allowed);
1895 if(count($allowed)) {
1896 foreach($allowed as $a) {
1897 $pat = strtolower(trim($a));
1898 if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
1907 // check if email address is allowed to register here.
1908 // Compare against our list (wildcards allowed).
1909 // Returns false if not allowed, true if allowed or if
1910 // allowed list is not configured.
1912 if(! function_exists('allowed_email')) {
1913 function allowed_email($email) {
1916 $domain = strtolower(substr($email,strpos($email,'@') + 1));
1920 $str_allowed = get_config('system','allowed_email');
1926 $fnmatch = function_exists('fnmatch');
1927 $allowed = explode(',',$str_allowed);
1929 if(count($allowed)) {
1930 foreach($allowed as $a) {
1931 $pat = strtolower(trim($a));
1932 if(($fnmatch && fnmatch($pat,$domain)) || ($pat == $domain)) {
1943 // wrapper to load a view template, checking for alternate
1944 // languages before falling back to the default
1946 // obsolete, deprecated.
1948 if(! function_exists('load_view_file')) {
1949 function load_view_file($s) {
1955 if(file_exists("$d/$lang/$b"))
1956 return file_get_contents("$d/$lang/$b");
1958 $theme = current_theme();
1960 if(file_exists("$d/theme/$theme/$b"))
1961 return file_get_contents("$d/theme/$theme/$b");
1963 return file_get_contents($s);
1966 if(! function_exists('get_intltext_template')) {
1967 function get_intltext_template($s) {
1973 if(file_exists("view/$lang/$s"))
1974 return file_get_contents("view/$lang/$s");
1975 elseif(file_exists("view/en/$s"))
1976 return file_get_contents("view/en/$s");
1978 return file_get_contents("view/$s");
1981 if(! function_exists('get_markup_template')) {
1982 function get_markup_template($s) {
1984 $theme = current_theme();
1986 if(file_exists("view/theme/$theme/$s"))
1987 return file_get_contents("view/theme/$theme/$s");
1989 return file_get_contents("view/$s");
1997 // for html,xml parsing - let's say you've got
1998 // an attribute foobar="class1 class2 class3"
1999 // and you want to find out if it contains 'class3'.
2000 // you can't use a normal sub string search because you
2001 // might match 'notclass3' and a regex to do the job is
2002 // possible but a bit complicated.
2003 // pass the attribute string as $attr and the attribute you
2004 // are looking for as $s - returns true if found, otherwise false
2006 if(! function_exists('attribute_contains')) {
2007 function attribute_contains($attr,$s) {
2008 $a = explode(' ', $attr);
2009 if(count($a) && in_array($s,$a))
2014 if(! function_exists('logger')) {
2015 function logger($msg,$level = 0) {
2016 $debugging = get_config('system','debugging');
2017 $loglevel = intval(get_config('system','loglevel'));
2018 $logfile = get_config('system','logfile');
2020 if((! $debugging) || (! $logfile) || ($level > $loglevel))
2023 @file_put_contents($logfile, datetime_convert() . ':' . session_id() . ' ' . $msg . "\n", FILE_APPEND);
2028 if(! function_exists('activity_match')) {
2029 function activity_match($haystack,$needle) {
2030 if(($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle,NAMESPACE_ACTIVITY_SCHEMA)))
2036 // Pull out all #hashtags and @person tags from $s;
2037 // We also get @person@domain.com - which would make
2038 // the regex quite complicated as tags can also
2039 // end a sentence. So we'll run through our results
2040 // and strip the period from any tags which end with one.
2041 // Returns array of tags found, or empty array.
2044 if(! function_exists('get_tags')) {
2045 function get_tags($s) {
2048 // ignore anything in a code block
2050 $s = preg_replace('/\[code\](.*?)\[\/code\]/sm','',$s);
2052 // Match full names against @tags including the space between first and last
2053 // We will look these up afterward to see if they are full names or not recognisable.
2055 if(preg_match_all('/(@[^ \x0D\x0A,:?]+ [^ \x0D\x0A,:?]+)([ \x0D\x0A,:?]|$)/',$s,$match)) {
2056 foreach($match[1] as $mtch) {
2057 if(strstr($mtch,"]")) {
2058 // we might be inside a bbcode color tag - leave it alone
2061 if(substr($mtch,-1,1) === '.')
2062 $ret[] = substr($mtch,0,-1);
2068 // Otherwise pull out single word tags. These can be @nickname, @first_last
2071 if(preg_match_all('/([@#][^ \x0D\x0A,:?]+)([ \x0D\x0A,:?]|$)/',$s,$match)) {
2072 foreach($match[1] as $mtch) {
2073 if(strstr($mtch,"]")) {
2074 // we might be inside a bbcode color tag - leave it alone
2077 // ignore strictly numeric tags like #1
2078 if((strpos($mtch,'#') === 0) && ctype_digit(substr($mtch,1)))
2080 if(substr($mtch,-1,1) === '.')
2081 $ret[] = substr($mtch,0,-1);
2090 // quick and dirty quoted_printable encoding
2092 if(! function_exists('qp')) {
2094 return str_replace ("%","=",rawurlencode($s));
2099 if(! function_exists('get_mentions')) {
2100 function get_mentions($item) {
2102 if(! strlen($item['tag']))
2105 $arr = explode(',',$item['tag']);
2106 foreach($arr as $x) {
2108 if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
2109 $o .= "\t\t" . '<link rel="mentioned" href="' . $matches[1] . '" />' . "\r\n";
2110 $o .= "\t\t" . '<link rel="ostatus:attention" href="' . $matches[1] . '" />' . "\r\n";
2116 if(! function_exists('contact_block')) {
2117 function contact_block() {
2121 $shown = get_pconfig($a->profile['uid'],'system','display_friend_count');
2125 if((! is_array($a->profile)) || ($a->profile['hide-friends']))
2127 $r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0",
2128 intval($a->profile['uid'])
2131 $total = intval($r[0]['total']);
2134 $o .= '<h4 class="contact-h4">' . t('No contacts') . '</h4>';
2137 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0 ORDER BY RAND() LIMIT %d",
2138 intval($a->profile['uid']),
2142 $o .= '<h4 class="contact-h4">' . sprintf( tt('%d Contact','%d Contacts', $total),$total) . '</h4><div id="contact-block">';
2143 foreach($r as $rr) {
2144 $o .= micropro($rr,true,'mpfriend');
2146 $o .= '</div><div id="contact-block-end"></div>';
2147 $o .= '<div id="viewcontacts"><a id="viewcontacts-link" href="viewcontacts/' . $a->profile['nickname'] . '">' . t('View Contacts') . '</a></div>';
2151 $arr = array('contacts' => $r, 'output' => $o);
2153 call_hooks('contact_block_end', $arr);
2158 if(! function_exists('micropro')) {
2159 function micropro($contact, $redirect = false, $class = '', $textmode = false) {
2162 $class = ' ' . $class;
2164 $url = $contact['url'];
2169 $redirect_url = $a->get_baseurl() . '/redir/' . $contact['id'];
2170 if(local_user() && ($contact['uid'] == local_user()) && ($contact['network'] === 'dfrn')) {
2171 $url = $redirect_url;
2172 $sparkle = ' sparkle';
2175 $click = ((x($contact,'click')) ? ' onclick="' . $contact['click'] . '" ' : '');
2179 return '<div class="contact-block-textdiv' . $class . '"><a class="contact-block-link' . $class . $sparkle
2180 . (($click) ? ' fakelink' : '') . '" '
2181 . (($url) ? ' href="' . $url . '"' : '') . $click
2182 . '" title="' . $contact['name'] . ' [' . $contact['url'] . ']" alt="' . $contact['name']
2183 . '" >'. $contact['name'] . '</a></div>' . "\r\n";
2186 return '<div class="contact-block-div' . $class . '"><a class="contact-block-link' . $class . $sparkle
2187 . (($click) ? ' fakelink' : '') . '" '
2188 . (($url) ? ' href="' . $url . '"' : '') . $click . ' ><img class="contact-block-img' . $class . $sparkle . '" src="'
2189 . $contact['micro'] . '" title="' . $contact['name'] . ' [' . $contact['url'] . ']" alt="' . $contact['name']
2190 . '" /></a></div>' . "\r\n";
2196 if(! function_exists('search')) {
2197 function search($s,$id='search-box',$url='/search') {
2199 $o = '<div id="' . $id . '">';
2200 $o .= '<form action="' . $a->get_baseurl() . $url . '" method="get" >';
2201 $o .= '<input type="text" name="search" id="search-text" value="' . $s .'" />';
2202 $o .= '<input type="submit" name="submit" id="search-submit" value="' . t('Search') . '" />';
2203 $o .= '</form></div>';
2207 if(! function_exists('valid_email')) {
2208 function valid_email($x){
2209 if(preg_match('/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/',$x))
2215 if(! function_exists('gravatar_img')) {
2216 function gravatar_img($email) {
2218 $opt = 'identicon'; // psuedo-random geometric pattern if not found
2220 $hash = md5(trim(strtolower($email)));
2222 $url = 'http://www.gravatar.com/avatar/' . $hash . '.jpg'
2223 . '?s=' . $size . '&d=' . $opt . '&r=' . $rating;
2225 logger('gravatar: ' . $email . ' ' . $url);
2229 if(! function_exists('aes_decrypt')) {
2230 function aes_decrypt($val,$ky)
2232 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2233 for($a=0;$a<strlen($ky);$a++)
2234 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2235 $mode = MCRYPT_MODE_ECB;
2236 $enc = MCRYPT_RIJNDAEL_128;
2237 $dec = @mcrypt_decrypt($enc, $key, $val, $mode, @mcrypt_create_iv( @mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM ) );
2238 return rtrim($dec,(( ord(substr($dec,strlen($dec)-1,1))>=0 and ord(substr($dec, strlen($dec)-1,1))<=16)? chr(ord( substr($dec,strlen($dec)-1,1))):null));
2242 if(! function_exists('aes_encrypt')) {
2243 function aes_encrypt($val,$ky)
2245 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2246 for($a=0;$a<strlen($ky);$a++)
2247 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2248 $mode=MCRYPT_MODE_ECB;
2249 $enc=MCRYPT_RIJNDAEL_128;
2250 $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
2251 return mcrypt_encrypt($enc, $key, $val, $mode, mcrypt_create_iv( mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM));
2259 * Replace naked text hyperlink with HTML formatted hyperlink
2263 if(! function_exists('linkify')) {
2264 function linkify($s) {
2265 $s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%\$\!\+]*)/", ' <a href="$1" target="external-link">$1</a>', $s);
2275 * Replaces text emoticons with graphical images
2277 * @Parameter: string $s
2282 if(! function_exists('smilies')) {
2283 function smilies($s) {
2287 array( '<3', '</3', '<\\3', ':-)', ':)', ';-)', ':-(', ':(', ':-P', ':P', ':-"', ':-x', ':-X', ':-D', '8-|', '8-O'),
2289 '<img src="' . $a->get_baseurl() . '/images/smiley-heart.gif" alt="<3" />',
2290 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="</3" />',
2291 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="<\\3" />',
2292 '<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":-)" />',
2293 '<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":)" />',
2294 '<img src="' . $a->get_baseurl() . '/images/smiley-wink.gif" alt=";-)" />',
2295 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":-(" />',
2296 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":(" />',
2297 '<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":-P" />',
2298 '<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":P" />',
2299 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-\"" />',
2300 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-x" />',
2301 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-X" />',
2302 '<img src="' . $a->get_baseurl() . '/images/smiley-laughing.gif" alt=":-D" />',
2303 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-|" />',
2304 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-O" />'
2311 * Function : profile_load
2313 * @parameter string $nickname
2314 * @parameter int $profile
2316 * Summary: Loads a profile into the page sidebar.
2317 * The function requires a writeable copy of the main App structure, and the nickname
2318 * of a registered local account.
2320 * If the viewer is an authenticated remote viewer, the profile displayed is the
2321 * one that has been configured for his/her viewing in the Contact manager.
2322 * Passing a non-zero profile ID can also allow a preview of a selected profile
2325 * Profile information is placed in the App structure for later retrieval.
2326 * Honours the owner's chosen theme for display.
2330 if(! function_exists('profile_load')) {
2331 function profile_load(&$a, $nickname, $profile = 0) {
2333 $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
2334 intval($_SESSION['visitor_id']));
2336 $profile = $r[0]['profile-id'];
2342 $profile_int = intval($profile);
2343 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2344 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2345 WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d LIMIT 1",
2347 intval($profile_int)
2351 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2352 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2353 WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 LIMIT 1",
2358 if(($r === false) || (! count($r))) {
2359 notice( t('No profile') . EOL );
2364 $a->profile = $r[0];
2367 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
2368 $_SESSION['theme'] = $a->profile['theme'];
2370 if(! (x($a->page,'aside')))
2371 $a->page['aside'] = '';
2373 $a->page['aside'] .= profile_sidebar($a->profile);
2374 $a->page['aside'] .= contact_block();
2382 * Function: profile_sidebar
2384 * Formats a profile for display in the sidebar.
2385 * It is very difficult to templatise the HTML completely
2386 * because of all the conditional logic.
2388 * @parameter: array $profile
2390 * Returns HTML string stuitable for sidebar inclusion
2391 * Exceptions: Returns empty string if passed $profile is wrong type or not populated
2396 if(! function_exists('profile_sidebar')) {
2397 function profile_sidebar($profile) {
2403 if((! is_array($profile)) && (! count($profile)))
2406 call_hooks('profile_sidebar_enter', $profile);
2408 $fullname = '<div class="fn">' . $profile['name'] . '</div>';
2410 $pdesc = '<div class="title">' . $profile['pdesc'] . '</div>';
2414 $photo = '<div id="profile-photo-wrapper"><img class="photo" src="' . $profile['photo'] . '" alt="' . $profile['name'] . '" /></div>';
2416 // don't show connect link to yourself
2418 $connect = (($profile['uid'] != local_user()) ? '<li><a id="dfrn-request-link" href="dfrn_request/' . $profile['nickname'] . '">' . t('Connect') . '</a></li>' : '');
2420 // don't show connect link to authenticated visitors either
2422 if((remote_user()) && ($_SESSION['visitor_visiting'] == $profile['uid']))
2425 if((x($profile,'address') == 1)
2426 || (x($profile,'locality') == 1)
2427 || (x($profile,'region') == 1)
2428 || (x($profile,'postal-code') == 1)
2429 || (x($profile,'country-name') == 1))
2433 $location .= '<div class="location"><span class="location-label">' . t('Location:') . '</span> <div class="adr">';
2434 $location .= ((x($profile,'address') == 1) ? '<div class="street-address">' . $profile['address'] . '</div>' : '');
2435 $location .= (((x($profile,'locality') == 1) || (x($profile,'region') == 1) || (x($profile,'postal-code') == 1))
2436 ? '<span class="city-state-zip"><span class="locality">' . $profile['locality'] . '</span>'
2437 . ((x($profile['locality']) == 1) ? t(', ') : '')
2438 . '<span class="region">' . $profile['region'] . '</span>'
2439 . ' <span class="postal-code">' . $profile['postal-code'] . '</span></span>' : '');
2440 $location .= ((x($profile,'country-name') == 1) ? ' <span class="country-name">' . $profile['country-name'] . '</span>' : '');
2441 $location .= '</div></div><div class="profile-clear"></div>';
2445 $gender = ((x($profile,'gender') == 1) ? '<div class="mf"><span class="gender-label">' . t('Gender:') . '</span> <span class="x-gender">' . $profile['gender'] . '</span></div><div class="profile-clear"></div>' : '');
2447 $pubkey = ((x($profile,'pubkey') == 1) ? '<div class="key" style="display:none;">' . $profile['pubkey'] . '</div>' : '');
2449 $marital = ((x($profile,'marital') == 1) ? '<div class="marital"><span class="marital-label"><span class="heart">♥</span> ' . t('Status:') . ' </span><span class="marital-text">' . $profile['marital'] . '</span></div><div class="profile-clear"></div>' : '');
2451 $homepage = ((x($profile,'homepage') == 1) ? '<div class="homepage"><span class="homepage-label">' . t('Homepage:') . ' </span><span class="homepage-url">' . linkify($profile['homepage']) . '</span></div><div class="profile-clear"></div>' : '');
2453 if($profile['hidewall'] && (! local_user()) && (! remote_user())) {
2454 $location = $gender = $marital = $homepage = '';
2457 $tpl = get_markup_template('profile_vcard.tpl');
2459 $o .= replace_macros($tpl, array(
2460 '$fullname' => $fullname,
2464 '$connect' => $connect,
2465 '$location' => $location,
2466 '$gender' => $gender,
2467 '$pubkey' => $pubkey,
2468 '$marital' => $marital,
2469 '$homepage' => $homepage
2473 $arr = array('profile' => &$profile, 'entry' => &$o);
2475 call_hooks('profile_sidebar', $arr);
2481 if(! function_exists('register_hook')) {
2482 function register_hook($hook,$file,$function) {
2484 $r = q("SELECT * FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2492 $r = q("INSERT INTO `hook` (`hook`, `file`, `function`) VALUES ( '%s', '%s', '%s' ) ",
2500 if(! function_exists('unregister_hook')) {
2501 function unregister_hook($hook,$file,$function) {
2503 $r = q("DELETE FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2512 if(! function_exists('load_hooks')) {
2513 function load_hooks() {
2515 $a->hooks = array();
2516 $r = q("SELECT * FROM `hook` WHERE 1");
2518 foreach($r as $rr) {
2519 $a->hooks[] = array($rr['hook'], $rr['file'], $rr['function']);
2525 if(! function_exists('call_hooks')) {
2526 function call_hooks($name, &$data = null) {
2529 if(count($a->hooks)) {
2530 foreach($a->hooks as $hook) {
2531 if($hook[HOOK_HOOK] === $name) {
2532 @include_once($hook[HOOK_FILE]);
2533 if(function_exists($hook[HOOK_FUNCTION])) {
2534 $func = $hook[HOOK_FUNCTION];
2543 if(! function_exists('day_translate')) {
2544 function day_translate($s) {
2545 $ret = str_replace(array('Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'),
2546 array( t('Monday'), t('Tuesday'), t('Wednesday'), t('Thursday'), t('Friday'), t('Saturday'), t('Sunday')),
2549 $ret = str_replace(array('January','February','March','April','May','June','July','August','September','October','November','December'),
2550 array( t('January'), t('February'), t('March'), t('April'), t('May'), t('June'), t('July'), t('August'), t('September'), t('October'), t('November'), t('December')),
2556 if(! function_exists('get_birthdays')) {
2557 function get_birthdays() {
2565 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
2567 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
2568 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
2569 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
2570 ORDER BY `start` DESC ",
2571 intval(local_user()),
2572 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
2573 dbesc(datetime_convert('UTC','UTC','now'))
2576 if($r && count($r)) {
2579 if(strlen($rr['name']))
2583 $o .= '<div id="birthday-notice" class="birthday-notice fakelink" onclick=openClose(\'birthday-wrapper\'); >' . t('Birthday Reminders') . ' ' . '(' . $total . ')' . '</div>';
2584 $o .= '<div id="birthday-wrapper" style="display: none;" ><div id="birthday-title">' . t('Birthdays this week:') . '</div>';
2585 $o .= '<div id="birthday-adjust">' . t("\x28Adjusted for local time\x29") . '</div>';
2586 $o .= '<div id="birthday-title-end"></div>';
2588 foreach($r as $rr) {
2589 if(! strlen($rr['name']))
2591 $now = strtotime('now');
2592 $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
2594 $o .= '<div class="birthday-list" id="birthday-' . $rr['eid'] . '"><a class="sparkle" href="'
2595 . $a->get_baseurl() . '/redir/' . $rr['cid'] . '">' . $rr['name'] . '</a> '
2596 . day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $bd_format)) . (($today) ? ' ' . t('[today]') : '')
2599 $o .= '</div></div>';
2606 if(! function_exists('normalise_link')) {
2607 function normalise_link($url) {
2608 $ret = str_replace(array('https:','//www.'), array('http:','//'), $url);
2609 return(rtrim($ret,'/'));
2614 * Compare two URLs to see if they are the same, but ignore
2615 * slight but hopefully insignificant differences such as if one
2616 * is https and the other isn't, or if one is www.something and
2617 * the other isn't - and also ignore case differences.
2619 * Return true if the URLs match, otherwise false.
2623 if(! function_exists('link_compare')) {
2624 function link_compare($a,$b) {
2625 if(strcasecmp(normalise_link($a),normalise_link($b)) === 0)
2631 if(! function_exists('prepare_body')) {
2632 function prepare_body($item,$attach = false) {
2634 $s = prepare_text($item['body']);
2638 $arr = explode(',',$item['attach']);
2640 $s .= '<div class="body-attach">';
2641 foreach($arr as $r) {
2644 $cnt = preg_match('|\[attach\]href=\"(.*?)\" size=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
2646 $icontype = strtolower(substr($matches[3],0,strpos($matches[3],'/')));
2652 $icon = '<div class="attachtype type-' . $icontype . '"></div>';
2655 $icon = '<div class="attachtype type-unkn"></div>';
2658 $title = ((strlen(trim($matches[4]))) ? escape_tags(trim($matches[4])) : escape_tags($matches[1]));
2659 $title .= ' ' . $matches[2] . ' ' . t('bytes');
2661 $s .= '<a href="' . strip_tags($matches[1]) . '" title="' . $title . '" class="attachlink" target="external-link" >' . $icon . '</a>';
2664 $s .= '<div class="clear"></div></div>';
2669 if(! function_exists('prepare_text')) {
2670 function prepare_text($text) {
2672 require_once('include/bbcode.php');
2674 $s = smilies(bbcode($text));
2681 * Wrap calls to proc_close(proc_open()) and call hook
2682 * so plugins can take part in process :)
2685 * $cmd program to run
2686 * next args are passed as $cmd command line
2688 * e.g.: proc_run("ls","-la","/tmp");
2690 * $cmd and string args are surrounded with ""
2693 if(! function_exists('proc_run')) {
2694 function proc_run($cmd){
2698 $args = func_get_args();
2699 call_hooks("proc_run", $args);
2701 if(count($args) && $args[0] === 'php')
2702 $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
2704 foreach ($args as $arg){
2705 $arg = escapeshellarg($arg);
2707 $cmdline = implode($args," ");
2708 proc_close(proc_open($cmdline." &",array(),$foo));
2711 if(! function_exists('current_theme')) {
2712 function current_theme(){
2713 $app_base_themes = array('duepuntozero', 'loozah');
2717 $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
2718 $theme_name = ((is_array($_SESSION) && x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
2720 if($theme_name && file_exists('view/theme/' . $theme_name . '/style.css'))
2721 return($theme_name);
2723 foreach($app_base_themes as $t) {
2724 if(file_exists('view/theme/' . $t . '/style.css'))
2728 $fallback = glob('view/theme/*/style.css');
2729 if(count($fallback))
2730 return (str_replace('view/theme/','', str_replace("/style.css","",$fallback[0])));
2735 * Return full URL to theme which is currently in effect.
2736 * Provide a sane default if nothing is chosen or the specified theme does not exist.
2738 if(! function_exists('current_theme_url')) {
2739 function current_theme_url() {
2741 $t = current_theme();
2742 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
2745 if(! function_exists('feed_birthday')) {
2746 function feed_birthday($uid,$tz) {
2750 * Determine the next birthday, but only if the birthday is published
2751 * in the default profile. We _could_ also look for a private profile that the
2752 * recipient can see, but somebody could get mad at us if they start getting
2753 * public birthday greetings when they haven't made this info public.
2755 * Assuming we are able to publish this info, we are then going to convert
2756 * the start time from the owner's timezone to UTC.
2758 * This will potentially solve the problem found with some social networks
2759 * where birthdays are converted to the viewer's timezone and salutations from
2760 * elsewhere in the world show up on the wrong day. We will convert it to the
2761 * viewer's timezone also, but first we are going to convert it from the birthday
2762 * person's timezone to GMT - so the viewer may find the birthday starting at
2763 * 6:00PM the day before, but that will correspond to midnight to the birthday person.
2769 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
2773 if($p && count($p)) {
2774 $tmp_dob = substr($p[0]['dob'],5);
2775 if(intval($tmp_dob)) {
2776 $y = datetime_convert($tz,$tz,'now','Y');
2777 $bd = $y . '-' . $tmp_dob . ' 00:00';
2778 $t_dob = strtotime($bd);
2779 $now = strtotime(datetime_convert($tz,$tz,'now'));
2781 $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
2782 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
2790 * return atom link elements for all of our hubs
2793 if(! function_exists('feed_hublinks')) {
2794 function feed_hublinks() {
2796 $hub = get_config('system','huburl');
2800 $hubs = explode(',', $hub);
2802 foreach($hubs as $h) {
2806 $hubxml .= '<link rel="hub" href="' . xmlify($h) . '" />' . "\n" ;
2813 /* return atom link elements for salmon endpoints */
2815 if(! function_exists('feed_salmonlinks')) {
2816 function feed_salmonlinks($nick) {
2820 $salmon = '<link rel="salmon" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2822 // old style links that status.net still needed as of 12/2010
2824 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-replies" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2825 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-mention" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2829 if(! function_exists('get_plink')) {
2830 function get_plink($item) {
2832 $plink = (((x($item,'plink')) && (! $item['private'])) ? '<div class="wall-item-links-wrapper"><a href="'
2833 . $item['plink'] . '" title="' . t('link to source') . '" target="external-link" class="icon remote-link"></a></div>' : '');
2837 if(! function_exists('unamp')) {
2838 function unamp($s) {
2839 return str_replace('&', '&', $s);
2845 if(! function_exists('lang_selector')) {
2846 function lang_selector() {
2848 $o = '<div id="lang-select-icon" class="icon language" title="' . t('Select an alternate language') . '" onclick="openClose(\'language-selector\');" ></div>';
2849 $o .= '<div id="language-selector" style="display: none;" >';
2850 $o .= '<form action="" method="post" ><select name="system_language" onchange="this.form.submit();" >';
2851 $langs = glob('view/*/strings.php');
2852 if(is_array($langs) && count($langs)) {
2853 if(! in_array('view/en/strings.php',$langs))
2854 $langs[] = 'view/en/';
2856 foreach($langs as $l) {
2858 $ll = substr($ll,0,strrpos($ll,'/'));
2859 $selected = (($ll === $lang) ? ' selected="selected" ' : '');
2860 $o .= '<option value="' . $ll . '"' . $selected . '>' . $ll . '</option>';
2863 $o .= '</select></form></div>';
2868 if(! function_exists('parse_xml_string')) {
2869 function parse_xml_string($s,$strict = true) {
2871 if(! strstr($s,'<?xml'))
2873 $s2 = substr($s,strpos($s,'<?xml'));
2877 libxml_use_internal_errors(true);
2879 $x = @simplexml_load_string($s2);
2881 logger('libxml: parse: error: ' . $s2, LOGGER_DATA);
2882 foreach(libxml_get_errors() as $err)
2883 logger('libxml: parse: ' . $err->code." at ".$err->line.":".$err->column." : ".$err->message, LOGGER_DATA);
2884 libxml_clear_errors();
2889 if(! function_exists('is_site_admin')) {
2890 function is_site_admin() {
2892 if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
2898 * parse plugin comment in search of plugin infos.
2902 * * Description: A plugin which plugs in
2904 * * Author: John <profile url>
2905 * * Author: Jane <email>
2909 if (! function_exists('get_plugin_info')){
2910 function get_plugin_info($plugin){
2911 if (!is_file("addon/$plugin/$plugin.php")) return false;
2913 $f = file_get_contents("addon/$plugin/$plugin.php");
2914 $r = preg_match("|/\*.*\*/|msU", $f, $m);
2918 'description' => "",
2919 'author' => array(),
2924 $ll = explode("\n", $m[0]);
2925 foreach( $ll as $l ) {
2926 $l = trim($l,"\t\n\r */");
2928 list($k,$v) = array_map("trim", explode(":",$l,2));
2931 $r=preg_match("|([^<]+)<([^>]+)>|", $v, $m);
2933 $info['author'][] = array('name'=>$m[1], 'link'=>$m[2]);
2935 $info['author'][] = array('name'=>$v);
2938 if (array_key_exists($k,$info)){
2950 if(! function_exists('return_bytes')) {
2951 function return_bytes ($size_str) {
2952 switch (substr ($size_str, -1))
2954 case 'M': case 'm': return (int)$size_str * 1048576;
2955 case 'K': case 'k': return (int)$size_str * 1024;
2956 case 'G': case 'g': return (int)$size_str * 1073741824;
2957 default: return $size_str;
2961 function generate_guid() {
2964 $guid = substr(random_string(),0,16);
2965 $x = q("SELECT `uid` FROM `user` WHERE `guid` = '%s' LIMIT 1",
2970 } while ($found == true );
2975 function pkcs5_pad ($text, $blocksize)
2977 $pad = $blocksize - (strlen($text) % $blocksize);
2978 return $text . str_repeat(chr($pad), $pad);
2981 function pkcs5_unpad($text)
2983 $pad = ord($text{strlen($text)-1});
2984 if ($pad > strlen($text)) return false;
2985 if (strspn($text, chr($pad), strlen($text) - $pad) != $pad) return false;
2986 return substr($text, 0, -1 * $pad);