5 define ( 'FRIENDIKA_VERSION', '2.1.956' );
6 define ( 'DFRN_PROTOCOL_VERSION', '2.21' );
7 define ( 'DB_UPDATE_VERSION', 1053 );
9 define ( 'EOL', "<br />\r\n" );
10 define ( 'ATOM_TIME', 'Y-m-d\TH:i:s\Z' );
11 define ( 'DOWN_ARROW', '⇩' );
15 * SSL redirection policies
18 define ( 'SSL_POLICY_NONE', 0 );
19 define ( 'SSL_POLICY_FULL', 1 );
20 define ( 'SSL_POLICY_SELFSIGN', 2 );
27 define ( 'LOGGER_NORMAL', 0 );
28 define ( 'LOGGER_TRACE', 1 );
29 define ( 'LOGGER_DEBUG', 2 );
30 define ( 'LOGGER_DATA', 3 );
31 define ( 'LOGGER_ALL', 4 );
34 * registration policies
37 define ( 'REGISTER_CLOSED', 0 );
38 define ( 'REGISTER_APPROVE', 1 );
39 define ( 'REGISTER_OPEN', 2 );
43 * When used in contact records, this indicates that 'uid' has
44 * this relationship with contact['name']
47 define ( 'REL_VIP', 1);
48 define ( 'REL_FAN', 2);
49 define ( 'REL_BUD', 3);
55 define ( 'HOOK_HOOK', 0);
56 define ( 'HOOK_FILE', 1);
57 define ( 'HOOK_FUNCTION', 2);
63 * PAGE_NORMAL is a typical personal profile account
64 * PAGE_SOAPBOX automatically approves all friend requests as REL_FAN, (readonly)
65 * PAGE_COMMUNITY automatically approves all friend requests as REL_FAN, but with
66 * write access to wall and comments (no email and not included in page owner's ACL lists)
67 * PAGE_FREELOVE automatically approves all friend requests as full friends (REL_BUD).
71 define ( 'PAGE_NORMAL', 0 );
72 define ( 'PAGE_SOAPBOX', 1 );
73 define ( 'PAGE_COMMUNITY', 2 );
74 define ( 'PAGE_FREELOVE', 3 );
77 * Network and protocol family types
80 define ( 'NETWORK_DFRN', 'dfrn'); // Friendika, Mistpark, other DFRN implementations
81 define ( 'NETWORK_OSTATUS', 'stat'); // status.net, identi.ca, GNU-social, other OStatus implementations
82 define ( 'NETWORK_FEED', 'feed'); // RSS/Atom feeds with no known "post/notify" protocol
83 define ( 'NETWORK_DIASPORA', 'dspr'); // Diaspora
84 define ( 'NETWORK_MAIL', 'mail'); // IMAP/POP
85 define ( 'NETWORK_FACEBOOK', 'face'); // Facebook API
89 * Maximum number of "people who like (or don't like) this" that we will list by name
92 define ( 'MAX_LIKERS', 75);
95 * email notification options
98 define ( 'NOTIFY_INTRO', 0x0001 );
99 define ( 'NOTIFY_CONFIRM', 0x0002 );
100 define ( 'NOTIFY_WALL', 0x0004 );
101 define ( 'NOTIFY_COMMENT', 0x0008 );
102 define ( 'NOTIFY_MAIL', 0x0010 );
105 * various namespaces we may need to parse
108 define ( 'NAMESPACE_DFRN' , 'http://purl.org/macgirvin/dfrn/1.0' );
109 define ( 'NAMESPACE_THREAD' , 'http://purl.org/syndication/thread/1.0' );
110 define ( 'NAMESPACE_TOMB' , 'http://purl.org/atompub/tombstones/1.0' );
111 define ( 'NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/' );
112 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
113 define ( 'NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia' );
114 define ( 'NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env' );
115 define ( 'NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe' );
116 define ( 'NAMESPACE_GEORSS', 'http://www.georss.org/georss' );
117 define ( 'NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0' );
118 define ( 'NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from' );
121 * activity stream defines
124 define ( 'ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like' );
125 define ( 'ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike' );
126 define ( 'ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart' );
128 define ( 'ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
129 define ( 'ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
130 define ( 'ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
131 define ( 'ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post' );
132 define ( 'ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update' );
133 define ( 'ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
135 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
136 define ( 'ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note' );
137 define ( 'ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person' );
138 define ( 'ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
139 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
140 define ( 'ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
143 * item weight for query ordering
146 define ( 'GRAVITY_PARENT', 0);
147 define ( 'GRAVITY_LIKE', 3);
148 define ( 'GRAVITY_COMMENT', 6);
152 * Reverse the effect of magic_quotes_gpc if it is enabled.
153 * Please disable magic_quotes_gpc so we don't have to do this.
154 * See http://php.net/manual/en/security.magicquotes.disabling.php
158 if (get_magic_quotes_gpc()) {
159 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
160 while (list($key, $val) = each($process)) {
161 foreach ($val as $k => $v) {
162 unset($process[$key][$k]);
164 $process[$key][stripslashes($k)] = $v;
165 $process[] = &$process[$key][stripslashes($k)];
167 $process[$key][stripslashes($k)] = stripslashes($v);
177 require_once("include/pgettext.php");
184 * Our main application structure for the life of this page
185 * Primarily deals with the URL that got us here
186 * and tries to make some sense of it, and
187 * stores our page contents and config storage
188 * and anything else that might need to be passed around
189 * before we spit the page out.
193 if(! class_exists('App')) {
196 public $module_loaded = false;
197 public $query_string;
204 public $page_contact;
207 public $error = false;
217 public $interactive = true;
228 private $curl_headers;
230 function __construct() {
232 $this->config = array();
233 $this->page = array();
234 $this->pager= array();
236 $this->query_string = '';
238 $this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'])) ? 'https' : 'http' );
240 if(x($_SERVER,'SERVER_NAME')) {
241 $this->hostname = $_SERVER['SERVER_NAME'];
244 * Figure out if we are running at the top of a domain
245 * or in a sub-directory and adjust accordingly
248 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
249 if(isset($path) && strlen($path) && ($path != $this->path))
253 set_include_path("include/$this->hostname" . PATH_SEPARATOR . 'include' . PATH_SEPARATOR . '.' );
255 if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=")
256 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
258 $this->cmd = trim($_GET['q'],'/\\');
264 * Break the URL path into C style argc/argv style arguments for our
265 * modules. Given "http://example.com/module/arg1/arg2", $this->argc
266 * will be 3 (integer) and $this->argv will contain:
272 * There will always be one argument. If provided a naked domain
273 * URL, $this->argv[0] is set to "home".
277 $this->argv = explode('/',$this->cmd);
278 $this->argc = count($this->argv);
279 if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
280 $this->module = $this->argv[0];
283 $this->module = 'home';
287 * Special handling for the webfinger/lrdd host XRD file
288 * Just spit out the contents and exit.
291 if($this->cmd === '.well-known/host-meta') {
292 require_once('include/hostxrd.php');
293 hostxrd($this->get_baseurl());
298 * See if there is any page number information, and initialise
302 $this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1);
303 $this->pager['itemspage'] = 50;
304 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
305 $this->pager['total'] = 0;
308 function get_baseurl($ssl = false) {
310 $scheme = $this->scheme;
312 if(x($this->config,'ssl_policy')) {
313 if(($ssl) || ($this->config['ssl_policy'] == SSL_POLICY_FULL))
315 if(($this->config['ssl_policy'] == SSL_POLICY_SELFSIGN) && (local_user() || x($_POST,'auth-params')))
319 $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
320 return $this->baseurl;
323 function set_baseurl($url) {
324 $parsed = @parse_url($url);
326 $this->baseurl = $url;
329 $this->scheme = $parsed['scheme'];
331 $this->hostname = $parsed['host'];
332 if(x($parsed,'port'))
333 $this->hostname .= ':' . $parsed['port'];
334 if(x($parsed,'path'))
335 $this->path = trim($parsed['path'],'\\/');
340 function get_hostname() {
341 return $this->hostname;
344 function set_hostname($h) {
345 $this->hostname = $h;
348 function set_path($p) {
349 $this->path = trim(trim($p),'/');
352 function get_path() {
356 function set_pager_total($n) {
357 $this->pager['total'] = intval($n);
360 function set_pager_itemspage($n) {
361 $this->pager['itemspage'] = intval($n);
362 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
366 function init_pagehead() {
367 $this->page['title'] = $this->config['sitename'];
368 $tpl = load_view_file('view/head.tpl');
369 $this->page['htmlhead'] = replace_macros($tpl,array(
370 '$baseurl' => $this->get_baseurl() . '/',
371 '$generator' => 'Friendika' . ' ' . FRIENDIKA_VERSION,
372 '$delitem' => t('Delete this item?'),
373 '$comment' => t('Comment')
377 function set_curl_code($code) {
378 $this->curl_code = $code;
381 function get_curl_code() {
382 return $this->curl_code;
385 function set_curl_headers($headers) {
386 $this->curl_headers = $headers;
389 function get_curl_headers() {
390 return $this->curl_headers;
396 // retrieve the App structure
397 // useful in functions which require it but don't get it passed to them
399 if(! function_exists('get_app')) {
406 // Multi-purpose function to check variable state.
407 // Usage: x($var) or $x($array,'key')
408 // returns false if variable/key is not set
409 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
410 // e.g. x('') or x(0) returns 0;
412 if(! function_exists('x')) {
413 function x($s,$k = NULL) {
415 if((is_array($s)) && (array_key_exists($k,$s))) {
433 // called from db initialisation if db is dead.
435 if(! function_exists('system_unavailable')) {
436 function system_unavailable() {
437 include('system_unavailable.php');
442 // Primarily involved with database upgrade, but also sets the
443 // base url for use in cmdline programs which don't have
444 // $_SERVER variables, and synchronising the state of installed plugins.
447 if(! function_exists('check_config')) {
448 function check_config(&$a) {
451 load_config('system');
453 $build = get_config('system','build');
455 $build = set_config('system','build',DB_UPDATE_VERSION);
457 $url = get_config('system','url');
459 // if the url isn't set or the stored url is radically different
460 // than the currently visited url, store the current value accordingly.
461 // "Radically different" ignores common variations such as http vs https
462 // and www.example.com vs example.com.
464 if((! x($url)) || (! link_compare($url,$a->get_baseurl())))
465 $url = set_config('system','url',$a->get_baseurl());
467 if($build != DB_UPDATE_VERSION) {
468 $stored = intval($build);
469 $current = intval(DB_UPDATE_VERSION);
470 if(($stored < $current) && file_exists('update.php')) {
471 // We're reporting a different version than what is currently installed.
472 // Run any existing update scripts to bring the database up to current.
474 require_once('update.php');
475 for($x = $stored; $x < $current; $x ++) {
476 if(function_exists('update_' . $x)) {
477 $func = 'update_' . $x;
481 set_config('system','build', DB_UPDATE_VERSION);
487 * Synchronise plugins:
489 * $a->config['system']['addon'] contains a comma-separated list of names
490 * of plugins/addons which are used on this system.
491 * Go through the database list of already installed addons, and if we have
492 * an entry, but it isn't in the config list, call the uninstall procedure
493 * and mark it uninstalled in the database (for now we'll remove it).
494 * Then go through the config list and if we have a plugin that isn't installed,
495 * call the install procedure and add it to the database.
499 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
503 $installed = array();
505 $plugins = get_config('system','addon');
506 $plugins_arr = array();
509 $plugins_arr = explode(',',str_replace(' ', '',$plugins));
511 $a->plugins = $plugins_arr;
513 $installed_arr = array();
515 if(count($installed)) {
516 foreach($installed as $i) {
517 if(! in_array($i['name'],$plugins_arr)) {
518 logger("Addons: uninstalling " . $i['name']);
519 q("DELETE FROM `addon` WHERE `id` = %d LIMIT 1",
523 @include_once('addon/' . $i['name'] . '/' . $i['name'] . '.php');
524 if(function_exists($i['name'] . '_uninstall')) {
525 $func = $i['name'] . '_uninstall';
530 $installed_arr[] = $i['name'];
534 if(count($plugins_arr)) {
535 foreach($plugins_arr as $p) {
536 if(! in_array($p,$installed_arr)) {
537 logger("Addons: installing " . $p);
538 $t = filemtime('addon/' . $p . '/' . $p . '.php');
539 @include_once('addon/' . $p . '/' . $p . '.php');
540 if(function_exists($p . '_install')) {
541 $func = $p . '_install';
543 $r = q("INSERT INTO `addon` (`name`, `installed`, `timestamp`) VALUES ( '%s', 1, %d ) ",
558 // reload all updated plugins
560 if(! function_exists('reload_plugins')) {
561 function reload_plugins() {
562 $plugins = get_config('system','addon');
563 if(strlen($plugins)) {
565 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
569 $installed = array();
571 $parr = explode(',',$plugins);
573 foreach($parr as $pl) {
576 $t = filemtime('addon/' . $pl . '/' . $pl . '.php');
577 foreach($installed as $i) {
578 if(($i['name'] == $pl) && ($i['timestamp'] != $t)) {
579 logger('Reloading plugin: ' . $i['name']);
580 @include_once('addon/' . $pl . '/' . $pl . '.php');
582 if(function_exists($pl . '_uninstall')) {
583 $func = $pl . '_uninstall';
586 if(function_exists($pl . '_install')) {
587 $func = $pl . '_install';
590 q("UPDATE `addon` SET `timestamp` = %d WHERE `id` = %d LIMIT 1",
603 // This is our template processor.
604 // $s is the string requiring macro substitution.
605 // $r is an array of key value pairs (search => replace)
606 // returns substituted string.
607 // WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other.
608 // For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing,
609 // depending on the order in which they were declared in the array.
611 require_once("include/template_processor.php");
613 if(! function_exists('replace_macros')) {
614 function replace_macros($s,$r) {
617 return $t->replace($s,$r);
622 // curl wrapper. If binary flag is true, return binary
625 if(! function_exists('fetch_url')) {
626 function fetch_url($url,$binary = false, &$redirects = 0) {
630 $ch = curl_init($url);
631 if(($redirects > 8) || (! $ch))
634 curl_setopt($ch, CURLOPT_HEADER, true);
635 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
638 $curl_time = intval(get_config('system','curl_timeout'));
639 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
641 // by default we will allow self-signed certs
642 // but you can override this
644 $check_cert = get_config('system','verifyssl');
645 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
647 $prx = get_config('system','proxy');
649 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
650 curl_setopt($ch, CURLOPT_PROXY, $prx);
651 $prxusr = get_config('system','proxyuser');
653 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
656 curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
658 $a->set_curl_code(0);
660 // don't let curl abort the entire application
661 // if it throws any errors.
663 $s = @curl_exec($ch);
665 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
666 $header = substr($s,0,strpos($s,"\r\n\r\n"));
667 if(stristr($header,'100') && (strlen($header) < 30)) {
668 // 100 Continue has two headers, get the real one
669 $s = substr($s,strlen($header)+4);
670 $header = substr($s,0,strpos($s,"\r\n\r\n"));
672 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
674 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
675 $url = trim(array_pop($matches));
676 $url_parsed = @parse_url($url);
677 if (isset($url_parsed)) {
679 return fetch_url($url,$binary,$redirects);
682 $a->set_curl_code($http_code);
684 $body = substr($s,strlen($header)+4);
686 /* one more try to make sure there are no more headers */
688 if(strpos($body,'HTTP/') === 0) {
689 $header = substr($body,0,strpos($body,"\r\n\r\n"));
690 $body = substr($body,strlen($header)+4);
693 $a->set_curl_headers($header);
699 // post request to $url. $params is an array of post variables.
701 if(! function_exists('post_url')) {
702 function post_url($url,$params, $headers = null, &$redirects = 0) {
704 $ch = curl_init($url);
705 if(($redirects > 8) || (! $ch))
708 curl_setopt($ch, CURLOPT_HEADER, true);
709 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
710 curl_setopt($ch, CURLOPT_POST,1);
711 curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
713 $curl_time = intval(get_config('system','curl_timeout'));
714 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
716 if(is_array($headers))
717 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
719 $check_cert = get_config('system','verifyssl');
720 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
721 $prx = get_config('system','proxy');
723 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
724 curl_setopt($ch, CURLOPT_PROXY, $prx);
725 $prxusr = get_config('system','proxyuser');
727 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
730 $a->set_curl_code(0);
732 // don't let curl abort the entire application
733 // if it throws any errors.
735 $s = @curl_exec($ch);
737 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
738 $header = substr($s,0,strpos($s,"\r\n\r\n"));
739 if(stristr($header,'100') && (strlen($header) < 30)) {
740 // 100 Continue has two headers, get the real one
741 $s = substr($s,strlen($header)+4);
742 $header = substr($s,0,strpos($s,"\r\n\r\n"));
744 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
746 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
747 $url = trim(array_pop($matches));
748 $url_parsed = @parse_url($url);
749 if (isset($url_parsed)) {
751 return post_url($url,$binary,$headers,$redirects);
754 $a->set_curl_code($http_code);
755 $body = substr($s,strlen($header)+4);
757 /* one more try to make sure there are no more headers */
759 if(strpos($body,'HTTP/') === 0) {
760 $header = substr($body,0,strpos($body,"\r\n\r\n"));
761 $body = substr($body,strlen($header)+4);
764 $a->set_curl_headers($header);
770 // random hash, 64 chars
772 if(! function_exists('random_string')) {
773 function random_string() {
774 return(hash('sha256',uniqid(rand(),true)));
778 * This is our primary input filter.
780 * The high bit hack only involved some old IE browser, forget which (IE5/Mac?)
781 * that had an XSS attack vector due to stripping the high-bit on an 8-bit character
782 * after cleansing, and angle chars with the high bit set could get through as markup.
784 * This is now disabled because it was interfering with some legitimate unicode sequences
785 * and hopefully there aren't a lot of those browsers left.
787 * Use this on any text input where angle chars are not valid or permitted
788 * They will be replaced with safer brackets. This may be filtered further
789 * if these are not allowed either.
793 if(! function_exists('notags')) {
794 function notags($string) {
796 return(str_replace(array("<",">"), array('[',']'), $string));
798 // High-bit filter no longer used
799 // return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string));
802 // use this on "body" or "content" input where angle chars shouldn't be removed,
803 // and allow them to be safely displayed.
805 if(! function_exists('escape_tags')) {
806 function escape_tags($string) {
808 return(htmlspecialchars($string));
811 // wrapper for adding a login box. If $register == true provide a registration
812 // link. This will most always depend on the value of $a->config['register_policy'].
813 // returns the complete html for inserting into the page
815 if(! function_exists('login')) {
816 function login($register = false) {
818 $register_tpl = (($register) ? load_view_file("view/register-link.tpl") : "");
820 $register_html = replace_macros($register_tpl,array(
821 '$title' => t('Create a New Account'),
822 '$desc' => t('Register')
825 $noid = get_config('system','no_openid');
827 $classname = 'no-openid';
828 $namelabel = t('Nickname or Email address: ');
829 $passlabel = t('Password: ');
833 $classname = 'openid';
834 $namelabel = t('Nickname/Email/OpenID: ');
835 $passlabel = t("Password \x28if not OpenID\x29: ");
838 $lostpass = t('Forgot your password?');
839 $lostlink = t('Password Reset');
842 $tpl = load_view_file("view/logout.tpl");
845 $tpl = load_view_file("view/login.tpl");
849 $o = replace_macros($tpl,array(
850 '$logout' => t('Logout'),
851 '$register_html' => $register_html,
852 '$classname' => $classname,
853 '$namelabel' => $namelabel,
854 '$passlabel' => $passlabel,
856 '$lostpass' => $lostpass,
857 '$lostlink' => $lostlink
863 // generate a string that's random, but usually pronounceable.
864 // used to generate initial passwords
866 if(! function_exists('autoname')) {
867 function autoname($len) {
869 $vowels = array('a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u');
870 if(mt_rand(0,5) == 4)
888 's','sc','sh','sm','sp','st',
896 $midcons = array('ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
897 'nd','ng','nk','nt','rn','rp','rt');
899 $noend = array('bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
900 'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh');
902 $start = mt_rand(0,2);
910 for ($x = 0; $x < $len; $x ++) {
911 $r = mt_rand(0,count($table) - 1);
914 if($table == $vowels)
915 $table = array_merge($cons,$midcons);
921 $word = substr($word,0,$len);
923 foreach($noend as $noe) {
924 if((strlen($word) > 2) && (substr($word,-2) == $noe)) {
925 $word = substr($word,0,-1);
929 if(substr($word,-1) == 'q')
930 $word = substr($word,0,-1);
934 // Used to end the current process, after saving session state.
936 if(! function_exists('killme')) {
938 session_write_close();
942 // redirect to another URL and terminate this process.
944 if(! function_exists('goaway')) {
945 function goaway($s) {
946 header("Location: $s");
950 // Generic XML return
951 // Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
952 // of $st and an optional text <message> of $message and terminates the current process.
954 if(! function_exists('xml_status')) {
955 function xml_status($st, $message = '') {
957 $xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
960 logger('xml_status returning non_zero: ' . $st . " message=" . $message);
962 header( "Content-type: text/xml" );
963 echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
964 echo "<result>\r\n\t<status>$st</status>\r\n$xml_message</result>\r\n";
968 // Returns the uid of locally logged in user or false.
970 if(! function_exists('local_user')) {
971 function local_user() {
972 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
973 return intval($_SESSION['uid']);
977 // Returns contact id of authenticated site visitor or false
979 if(! function_exists('remote_user')) {
980 function remote_user() {
981 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
982 return intval($_SESSION['visitor_id']);
986 // contents of $s are displayed prominently on the page the next time
987 // a page is loaded. Usually used for errors or alerts.
989 if(! function_exists('notice')) {
990 function notice($s) {
993 $_SESSION['sysmsg'] .= $s;
996 // wrapper around config to limit the text length of an incoming message
998 if(! function_exists('get_max_import_size')) {
999 function get_max_import_size() {
1001 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
1005 // escape text ($str) for XML transport
1006 // returns escaped text.
1008 if(! function_exists('xmlify')) {
1009 function xmlify($str) {
1012 for($x = 0; $x < strlen($str); $x ++) {
1023 $buffer .= ''';
1026 $buffer .= '"';
1042 $buffer = trim($buffer);
1047 // pass xml escaped text ($s), returns unescaped text
1049 if(! function_exists('unxmlify')) {
1050 function unxmlify($s) {
1051 $ret = str_replace('&','&', $s);
1052 $ret = str_replace(array('<','>','"','''),array('<','>','"',"'"),$ret);
1056 // convenience wrapper, reverse the operation "bin2hex"
1058 if(! function_exists('hex2bin')) {
1059 function hex2bin($s) {
1060 if(! ctype_xdigit($s)) {
1061 logger('hex2bin: illegal input: ' . print_r(debug_backtrace(), true));
1065 return(pack("H*",$s));
1068 // Automatic pagination.
1069 // To use, get the count of total items.
1070 // Then call $a->set_pager_total($number_items);
1071 // Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page
1072 // Then call paginate($a) after the end of the display loop to insert the pager block on the page
1073 // (assuming there are enough items to paginate).
1074 // When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage']
1075 // will limit the results to the correct items for the current page.
1076 // The actual page handling is then accomplished at the application layer.
1078 if(! function_exists('paginate')) {
1079 function paginate(&$a) {
1081 $stripped = preg_replace('/(&page=[0-9]*)/','',$a->query_string);
1082 $stripped = str_replace('q=','',$stripped);
1083 $stripped = trim($stripped,'/');
1084 $pagenum = $a->pager['page'];
1085 $url = $a->get_baseurl() . '/' . $stripped;
1088 if($a->pager['total'] > $a->pager['itemspage']) {
1089 $o .= '<div class="pager">';
1090 if($a->pager['page'] != 1)
1091 $o .= '<span class="pager_prev">'."<a href=\"$url".'&page='.($a->pager['page'] - 1).'">' . t('prev') . '</a></span> ';
1093 $o .= "<span class=\"pager_first\"><a href=\"$url"."&page=1\">" . t('first') . "</a></span> ";
1095 $numpages = $a->pager['total'] / $a->pager['itemspage'];
1098 $numstop = $numpages;
1100 if($numpages > 14) {
1101 $numstart = (($pagenum > 7) ? ($pagenum - 7) : 1);
1102 $numstop = (($pagenum > ($numpages - 7)) ? $numpages : ($numstart + 14));
1105 for($i = $numstart; $i <= $numstop; $i++){
1106 if($i == $a->pager['page'])
1107 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1109 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1113 if(($a->pager['total'] % $a->pager['itemspage']) != 0) {
1114 if($i == $a->pager['page'])
1115 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1117 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1121 $lastpage = (($numpages > intval($numpages)) ? intval($numpages)+1 : $numpages);
1122 $o .= "<span class=\"pager_last\"><a href=\"$url"."&page=$lastpage\">" . t('last') . "</a></span> ";
1124 if(($a->pager['total'] - ($a->pager['itemspage'] * $a->pager['page'])) > 0)
1125 $o .= '<span class="pager_next">'."<a href=\"$url"."&page=".($a->pager['page'] + 1).'">' . t('next') . '</a></span>';
1126 $o .= '</div>'."\r\n";
1131 // Turn user/group ACLs stored as angle bracketed text into arrays
1133 if(! function_exists('expand_acl')) {
1134 function expand_acl($s) {
1135 // turn string array of angle-bracketed elements into numeric array
1136 // e.g. "<1><2><3>" => array(1,2,3);
1140 $t = str_replace('<','',$s);
1141 $a = explode('>',$t);
1142 foreach($a as $aa) {
1144 $ret[] = intval($aa);
1150 // Used to wrap ACL elements in angle brackets for storage
1152 if(! function_exists('sanitise_acl')) {
1153 function sanitise_acl(&$item) {
1155 $item = '<' . intval(notags(trim($item))) . '>';
1160 // retrieve a "family" of config variables from database to cached storage
1162 if(! function_exists('load_config')) {
1163 function load_config($family) {
1165 $r = q("SELECT * FROM `config` WHERE `cat` = '%s'",
1169 foreach($r as $rr) {
1171 $a->config[$family][$k] = $rr['v'];
1176 // get a particular config variable given the family name
1177 // and key. Returns false if not set.
1178 // $instore is only used by the set_config function
1179 // to determine if the key already exists in the DB
1180 // If a key is found in the DB but doesn't exist in
1181 // local config cache, pull it into the cache so we don't have
1182 // to hit the DB again for this item.
1184 if(! function_exists('get_config')) {
1185 function get_config($family, $key, $instore = false) {
1190 if(isset($a->config[$family][$key])) {
1191 if($a->config[$family][$key] === '!<unset>!') {
1194 return $a->config[$family][$key];
1197 $ret = q("SELECT `v` FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1202 $a->config[$family][$key] = $ret[0]['v'];
1203 return $ret[0]['v'];
1206 $a->config[$family][$key] = '!<unset>!';
1211 // Store a config value ($value) in the category ($family)
1212 // under the key ($key)
1213 // Return the value, or false if the database update failed
1215 if(! function_exists('set_config')) {
1216 function set_config($family,$key,$value) {
1220 if(get_config($family,$key,true) === false) {
1221 $ret = q("INSERT INTO `config` ( `cat`, `k`, `v` ) VALUES ( '%s', '%s', '%s' ) ",
1230 $ret = q("UPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1236 $a->config[$family][$key] = $value;
1244 if(! function_exists('load_pconfig')) {
1245 function load_pconfig($uid,$family) {
1247 $r = q("SELECT * FROM `pconfig` WHERE `cat` = '%s' AND `uid` = %d",
1252 foreach($r as $rr) {
1254 $a->config[$uid][$family][$k] = $rr['v'];
1261 if(! function_exists('get_pconfig')) {
1262 function get_pconfig($uid,$family, $key, $instore = false) {
1267 if(isset($a->config[$uid][$family][$key])) {
1268 if($a->config[$uid][$family][$key] === '!<unset>!') {
1271 return $a->config[$uid][$family][$key];
1275 $ret = q("SELECT `v` FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1282 $a->config[$uid][$family][$key] = $ret[0]['v'];
1283 return $ret[0]['v'];
1286 $a->config[$uid][$family][$key] = '!<unset>!';
1291 if(! function_exists('del_config')) {
1292 function del_config($family,$key) {
1295 if(x($a->config[$family],$key))
1296 unset($a->config[$family][$key]);
1297 $ret = q("DELETE FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1306 // Same as above functions except these are for personal config storage and take an
1307 // additional $uid argument.
1309 if(! function_exists('set_pconfig')) {
1310 function set_pconfig($uid,$family,$key,$value) {
1314 if(get_pconfig($uid,$family,$key,true) === false) {
1315 $ret = q("INSERT INTO `pconfig` ( `uid`, `cat`, `k`, `v` ) VALUES ( %d, '%s', '%s', '%s' ) ",
1325 $ret = q("UPDATE `pconfig` SET `v` = '%s' WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1332 $a->config[$uid][$family][$key] = $value;
1339 if(! function_exists('del_pconfig')) {
1340 function del_pconfig($uid,$family,$key) {
1343 if(x($a->config[$uid][$family],$key))
1344 unset($a->config[$uid][$family][$key]);
1345 $ret = q("DELETE FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1354 // convert an XML document to a normalised, case-corrected array
1355 // used by webfinger
1357 if(! function_exists('convert_xml_element_to_array')) {
1358 function convert_xml_element_to_array($xml_element, &$recursion_depth=0) {
1360 // If we're getting too deep, bail out
1361 if ($recursion_depth > 512) {
1365 if (!is_string($xml_element) &&
1366 !is_array($xml_element) &&
1367 (get_class($xml_element) == 'SimpleXMLElement')) {
1368 $xml_element_copy = $xml_element;
1369 $xml_element = get_object_vars($xml_element);
1372 if (is_array($xml_element)) {
1373 $result_array = array();
1374 if (count($xml_element) <= 0) {
1375 return (trim(strval($xml_element_copy)));
1378 foreach($xml_element as $key=>$value) {
1381 $result_array[strtolower($key)] =
1382 convert_xml_element_to_array($value, $recursion_depth);
1385 if ($recursion_depth == 0) {
1386 $temp_array = $result_array;
1387 $result_array = array(
1388 strtolower($xml_element_copy->getName()) => $temp_array,
1392 return ($result_array);
1395 return (trim(strval($xml_element)));
1399 // Given an email style address, perform webfinger lookup and
1400 // return the resulting DFRN profile URL, or if no DFRN profile URL
1401 // is located, returns an OStatus subscription template (prefixed
1402 // with the string 'stat:' to identify it as on OStatus template).
1403 // If this isn't an email style address just return $s.
1404 // Return an empty string if email-style addresses but webfinger fails,
1405 // or if the resultant personal XRD doesn't contain a supported
1406 // subscription/friend-request attribute.
1408 if(! function_exists('webfinger_dfrn')) {
1409 function webfinger_dfrn($s) {
1410 if(! strstr($s,'@')) {
1413 $links = webfinger($s);
1414 logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA);
1416 foreach($links as $link)
1417 if($link['@attributes']['rel'] === NAMESPACE_DFRN)
1418 return $link['@attributes']['href'];
1419 foreach($links as $link)
1420 if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB)
1421 return 'stat:' . $link['@attributes']['template'];
1426 // Given an email style address, perform webfinger lookup and
1427 // return the array of link attributes from the personal XRD file.
1428 // On error/failure return an empty array.
1431 if(! function_exists('webfinger')) {
1432 function webfinger($s) {
1434 if(strstr($s,'@')) {
1435 $host = substr($s,strpos($s,'@') + 1);
1438 $tpl = fetch_lrdd_template($host);
1439 logger('webfinger: lrdd template: ' . $tpl);
1441 $pxrd = str_replace('{uri}', urlencode('acct:' . $s), $tpl);
1442 logger('webfinger: pxrd: ' . $pxrd);
1443 $links = fetch_xrd_links($pxrd);
1444 if(! count($links)) {
1445 // try with double slashes
1446 $pxrd = str_replace('{uri}', urlencode('acct://' . $s), $tpl);
1447 logger('webfinger: pxrd: ' . $pxrd);
1448 $links = fetch_xrd_links($pxrd);
1456 if(! function_exists('lrdd')) {
1457 function lrdd($uri) {
1461 // default priority is host priority, host-meta first
1465 // All we have is an email address. Resource-priority is irrelevant
1466 // because our URI isn't directly resolvable.
1468 if(strstr($uri,'@')) {
1469 return(webfinger($uri));
1472 // get the host meta file
1474 $host = @parse_url($uri);
1477 $url = ((x($host,'scheme')) ? $host['scheme'] : 'http') . '://';
1478 $url .= $host['host'] . '/.well-known/host-meta' ;
1483 logger('lrdd: constructed url: ' . $url);
1485 $xml = fetch_url($url);
1486 $headers = $a->get_curl_headers();
1491 logger('lrdd: host_meta: ' . $xml, LOGGER_DATA);
1493 $h = parse_xml_string($xml);
1495 $arr = convert_xml_element_to_array($h);
1497 if(isset($arr['xrd']['property'])) {
1498 $property = $arr['crd']['property'];
1499 if(! isset($property[0]))
1500 $properties = array($property);
1502 $properties = $property;
1503 foreach($properties as $prop)
1504 if((string) $prop['@attributes'] === 'http://lrdd.net/priority/resource')
1505 $priority = 'resource';
1508 // save the links in case we need them
1512 if(isset($arr['xrd']['link'])) {
1513 $link = $arr['xrd']['link'];
1514 if(! isset($link[0]))
1515 $links = array($link);
1520 // do we have a template or href?
1523 foreach($links as $link) {
1524 if($link['@attributes']['rel'] && attribute_contains($link['@attributes']['rel'],'lrdd')) {
1525 if(x($link['@attributes'],'template'))
1526 $tpl = $link['@attributes']['template'];
1527 elseif(x($link['@attributes'],'href'))
1528 $href = $link['@attributes']['href'];
1533 if((! isset($tpl)) || (! strpos($tpl,'{uri}')))
1536 if($priority === 'host') {
1538 $pxrd = str_replace('{uri}', urlencode($uri), $tpl);
1539 elseif(isset($href))
1542 logger('lrdd: (host priority) pxrd: ' . $pxrd);
1543 $links = fetch_xrd_links($pxrd);
1547 $lines = explode("\n",$headers);
1549 foreach($lines as $line) {
1550 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1551 return(fetch_xrd_links($matches[1]));
1559 // priority 'resource'
1562 $html = fetch_url($uri);
1563 $headers = $a->get_curl_headers();
1564 logger('lrdd: headers=' . $headers, LOGGER_DEBUG);
1566 // don't try and parse raw xml as html
1567 if(! strstr($html,'<?xml')) {
1568 require_once('library/HTML5/Parser.php');
1569 $dom = @HTML5_Parser::parse($html);
1572 $items = $dom->getElementsByTagName('link');
1573 foreach($items as $item) {
1574 $x = $item->getAttribute('rel');
1576 $pagelink = $item->getAttribute('href');
1583 if(isset($pagelink))
1584 return(fetch_xrd_links($pagelink));
1586 // next look in HTTP headers
1588 $lines = explode("\n",$headers);
1590 foreach($lines as $line) {
1591 // TODO alter the following regex to support multiple relations (space separated)
1592 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1593 $pagelink = $matches[1];
1596 // don't try and run feeds through the html5 parser
1597 if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml'))))
1599 if(stristr($html,'<rss') || stristr($html,'<feed'))
1604 if(isset($pagelink))
1605 return(fetch_xrd_links($pagelink));
1607 // If we haven't found any links, return the host xrd links (which we have already fetched)
1618 // Given a host name, locate the LRDD template from that
1619 // host. Returns the LRDD template or an empty string on
1622 if(! function_exists('fetch_lrdd_template')) {
1623 function fetch_lrdd_template($host) {
1626 $url1 = 'https://' . $host . '/.well-known/host-meta' ;
1627 $url2 = 'http://' . $host . '/.well-known/host-meta' ;
1628 $links = fetch_xrd_links($url1);
1629 logger('template (https): ' . print_r($links,true));
1630 if(! count($links)) {
1631 $links = fetch_xrd_links($url2);
1632 logger('template (http): ' . print_r($links,true));
1635 foreach($links as $link)
1636 if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd')
1637 $tpl = $link['@attributes']['template'];
1639 if(! strpos($tpl,'{uri}'))
1644 // Given a URL, retrieve the page as an XRD document.
1645 // Return an array of links.
1646 // on error/failure return empty array.
1648 if(! function_exists('fetch_xrd_links')) {
1649 function fetch_xrd_links($url) {
1652 $xml = fetch_url($url);
1656 logger('fetch_xrd_links: ' . $xml, LOGGER_DATA);
1657 $h = parse_xml_string($xml);
1658 $arr = convert_xml_element_to_array($h);
1662 if(isset($arr['xrd']['link'])) {
1663 $link = $arr['xrd']['link'];
1664 if(! isset($link[0]))
1665 $links = array($link);
1669 if(isset($arr['xrd']['alias'])) {
1670 $alias = $arr['xrd']['alias'];
1671 if(! isset($alias[0]))
1672 $aliases = array($alias);
1675 foreach($aliases as $alias) {
1676 $links[]['@attributes'] = array('rel' => 'alias' , 'href' => $alias);
1680 logger('fetch_xrd_links: ' . print_r($links,true), LOGGER_DATA);
1686 // Convert an ACL array to a storable string
1688 if(! function_exists('perms2str')) {
1689 function perms2str($p) {
1692 if(is_array($tmp)) {
1693 array_walk($tmp,'sanitise_acl');
1694 $ret = implode('',$tmp);
1699 // generate a guaranteed unique (for this domain) item ID for ATOM
1700 // safe from birthday paradox
1702 if(! function_exists('item_new_uri')) {
1703 function item_new_uri($hostname,$uid) {
1707 $hash = random_string();
1709 $uri = "urn:X-dfrn:" . $hostname . ':' . $uid . ':' . $hash;
1711 $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
1715 } while($dups == true);
1719 // Generate a guaranteed unique photo ID.
1720 // safe from birthday paradox
1722 if(! function_exists('photo_new_resource')) {
1723 function photo_new_resource() {
1727 $resource = hash('md5',uniqid(mt_rand(),true));
1728 $r = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1",
1733 } while($found == true);
1738 // Take a URL from the wild, prepend http:// if necessary
1739 // and check DNS to see if it's real
1740 // return true if it's OK, false if something is wrong with it
1742 if(! function_exists('validate_url')) {
1743 function validate_url(&$url) {
1744 if(substr($url,0,4) != 'http')
1745 $url = 'http://' . $url;
1746 $h = @parse_url($url);
1748 if(($h) && (dns_get_record($h['host'], DNS_A + DNS_CNAME + DNS_PTR))) {
1754 // checks that email is an actual resolvable internet address
1756 if(! function_exists('validate_email')) {
1757 function validate_email($addr) {
1759 if(! strpos($addr,'@'))
1761 $h = substr($addr,strpos($addr,'@') + 1);
1763 if(($h) && (dns_get_record($h, DNS_A + DNS_CNAME + DNS_PTR + DNS_MX))) {
1769 // Check $url against our list of allowed sites,
1770 // wildcards allowed. If allowed_sites is unset return true;
1771 // If url is allowed, return true.
1772 // otherwise, return false
1774 if(! function_exists('allowed_url')) {
1775 function allowed_url($url) {
1777 $h = @parse_url($url);
1783 $str_allowed = get_config('system','allowed_sites');
1789 $host = strtolower($h['host']);
1791 // always allow our own site
1793 if($host == strtolower($_SERVER['SERVER_NAME']))
1796 $fnmatch = function_exists('fnmatch');
1797 $allowed = explode(',',$str_allowed);
1799 if(count($allowed)) {
1800 foreach($allowed as $a) {
1801 $pat = strtolower(trim($a));
1802 if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
1811 // check if email address is allowed to register here.
1812 // Compare against our list (wildcards allowed).
1813 // Returns false if not allowed, true if allowed or if
1814 // allowed list is not configured.
1816 if(! function_exists('allowed_email')) {
1817 function allowed_email($email) {
1820 $domain = strtolower(substr($email,strpos($email,'@') + 1));
1824 $str_allowed = get_config('system','allowed_email');
1830 $fnmatch = function_exists('fnmatch');
1831 $allowed = explode(',',$str_allowed);
1833 if(count($allowed)) {
1834 foreach($allowed as $a) {
1835 $pat = strtolower(trim($a));
1836 if(($fnmatch && fnmatch($pat,$domain)) || ($pat == $domain)) {
1847 // wrapper to load a view template, checking for alternate
1848 // languages before falling back to the default
1850 if(! function_exists('load_view_file')) {
1851 function load_view_file($s) {
1857 if(file_exists("$d/$lang/$b"))
1858 return file_get_contents("$d/$lang/$b");
1860 $theme = current_theme();
1862 if(file_exists("$d/theme/$theme/$b"))
1863 return file_get_contents("$d/theme/$theme/$b");
1865 return file_get_contents($s);
1868 // for html,xml parsing - let's say you've got
1869 // an attribute foobar="class1 class2 class3"
1870 // and you want to find out if it contains 'class3'.
1871 // you can't use a normal sub string search because you
1872 // might match 'notclass3' and a regex to do the job is
1873 // possible but a bit complicated.
1874 // pass the attribute string as $attr and the attribute you
1875 // are looking for as $s - returns true if found, otherwise false
1877 if(! function_exists('attribute_contains')) {
1878 function attribute_contains($attr,$s) {
1879 $a = explode(' ', $attr);
1880 if(count($a) && in_array($s,$a))
1885 if(! function_exists('logger')) {
1886 function logger($msg,$level = 0) {
1887 $debugging = get_config('system','debugging');
1888 $loglevel = intval(get_config('system','loglevel'));
1889 $logfile = get_config('system','logfile');
1891 if((! $debugging) || (! $logfile) || ($level > $loglevel))
1894 @file_put_contents($logfile, datetime_convert() . ':' . session_id() . ' ' . $msg . "\n", FILE_APPEND);
1899 if(! function_exists('activity_match')) {
1900 function activity_match($haystack,$needle) {
1901 if(($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle,NAMESPACE_ACTIVITY_SCHEMA)))
1907 // Pull out all #hashtags and @person tags from $s;
1908 // We also get @person@domain.com - which would make
1909 // the regex quite complicated as tags can also
1910 // end a sentence. So we'll run through our results
1911 // and strip the period from any tags which end with one.
1912 // Returns array of tags found, or empty array.
1915 if(! function_exists('get_tags')) {
1916 function get_tags($s) {
1919 // ignore anything in a code block
1921 $s = preg_replace('/\[code\](.*?)\[\/code\]/sm','',$s);
1923 if(preg_match_all('/([@#][^ \x0D\x0A,:?]+)([ \x0D\x0A,:?]|$)/',$s,$match)) {
1924 foreach($match[1] as $match) {
1925 if(strstr($match,"]")) {
1926 // we might be inside a bbcode color tag - leave it alone
1929 if(substr($match,-1,1) === '.')
1930 $ret[] = substr($match,0,-1);
1940 // quick and dirty quoted_printable encoding
1942 if(! function_exists('qp')) {
1944 return str_replace ("%","=",rawurlencode($s));
1949 if(! function_exists('get_mentions')) {
1950 function get_mentions($item) {
1952 if(! strlen($item['tag']))
1955 $arr = explode(',',$item['tag']);
1956 foreach($arr as $x) {
1958 if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
1959 $o .= "\t\t" . '<link rel="mentioned" href="' . $matches[1] . '" />' . "\r\n";
1960 $o .= "\t\t" . '<link rel="ostatus:attention" href="' . $matches[1] . '" />' . "\r\n";
1966 if(! function_exists('contact_block')) {
1967 function contact_block() {
1971 $shown = get_pconfig($a->profile['uid'],'system','display_friend_count');
1975 if((! is_array($a->profile)) || ($a->profile['hide-friends']))
1977 $r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0",
1978 intval($a->profile['uid'])
1981 $total = intval($r[0]['total']);
1984 $o .= '<h4 class="contact-h4">' . t('No contacts') . '</h4>';
1987 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0 ORDER BY RAND() LIMIT %d",
1988 intval($a->profile['uid']),
1992 $o .= '<h4 class="contact-h4">' . sprintf( tt('%d Contact','%d Contacts', $total),$total) . '</h4><div id="contact-block">';
1993 foreach($r as $rr) {
1994 $o .= micropro($rr,true,'mpfriend');
1996 $o .= '</div><div id="contact-block-end"></div>';
1997 $o .= '<div id="viewcontacts"><a id="viewcontacts-link" href="viewcontacts/' . $a->profile['nickname'] . '">' . t('View Contacts') . '</a></div>';
2001 $arr = array('contacts' => $r, 'output' => $o);
2003 call_hooks('contact_block_end', $arr);
2008 if(! function_exists('micropro')) {
2009 function micropro($contact, $redirect = false, $class = '') {
2012 $class = ' ' . $class;
2014 $url = $contact['url'];
2019 $redirect_url = $a->get_baseurl() . '/redir/' . $contact['id'];
2020 if(local_user() && ($contact['uid'] == local_user()) && ($contact['network'] === 'dfrn')) {
2021 $url = $redirect_url;
2022 $sparkle = ' sparkle';
2025 $click = ((x($contact,'click')) ? ' onclick="' . $contact['click'] . '" ' : '');
2028 return '<div class="contact-block-div' . $class . '"><a class="contact-block-link' . $class . $sparkle
2029 . (($click) ? ' fakelink' : '') . '" '
2030 . (($url) ? ' href="' . $url . '"' : '') . $click . ' ><img class="contact-block-img' . $class . $sparkle . '" src="'
2031 . $contact['micro'] . '" title="' . $contact['name'] . ' [' . $contact['url'] . ']" alt="' . $contact['name']
2032 . '" /></a></div>' . "\r\n";
2037 if(! function_exists('search')) {
2038 function search($s) {
2040 $o = '<div id="search-box">';
2041 $o .= '<form action="' . $a->get_baseurl() . '/search' . '" method="get" >';
2042 $o .= '<input type="text" name="search" id="search-text" value="' . $s .'" />';
2043 $o .= '<input type="submit" name="submit" id="search-submit" value="' . t('Search') . '" />';
2044 $o .= '</form></div>';
2048 if(! function_exists('valid_email')) {
2049 function valid_email($x){
2050 if(preg_match('/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/',$x))
2056 if(! function_exists('gravatar_img')) {
2057 function gravatar_img($email) {
2059 $opt = 'identicon'; // psuedo-random geometric pattern if not found
2061 $hash = md5(trim(strtolower($email)));
2063 $url = 'http://www.gravatar.com/avatar/' . $hash . '.jpg'
2064 . '?s=' . $size . '&d=' . $opt . '&r=' . $rating;
2066 logger('gravatar: ' . $email . ' ' . $url);
2070 if(! function_exists('aes_decrypt')) {
2071 function aes_decrypt($val,$ky)
2073 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2074 for($a=0;$a<strlen($ky);$a++)
2075 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2076 $mode = MCRYPT_MODE_ECB;
2077 $enc = MCRYPT_RIJNDAEL_128;
2078 $dec = @mcrypt_decrypt($enc, $key, $val, $mode, @mcrypt_create_iv( @mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM ) );
2079 return rtrim($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));
2083 if(! function_exists('aes_encrypt')) {
2084 function aes_encrypt($val,$ky)
2086 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2087 for($a=0;$a<strlen($ky);$a++)
2088 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2089 $mode=MCRYPT_MODE_ECB;
2090 $enc=MCRYPT_RIJNDAEL_128;
2091 $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
2092 return mcrypt_encrypt($enc, $key, $val, $mode, mcrypt_create_iv( mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM));
2100 * Replace naked text hyperlink with HTML formatted hyperlink
2104 if(! function_exists('linkify')) {
2105 function linkify($s) {
2106 $s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%\$\!\+]*)/", ' <a href="$1" target="external-link">$1</a>', $s);
2116 * Replaces text emoticons with graphical images
2118 * @Parameter: string $s
2123 if(! function_exists('smilies')) {
2124 function smilies($s) {
2128 array( '<3', '</3', '<\\3', ':-)', ';-)', ':-(', ':(', ':-P', ':-"', ':-x', ':-X', ':-D', '8-|', '8-O'),
2130 '<img src="' . $a->get_baseurl() . '/images/smiley-heart.gif" alt="<3" />',
2131 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="</3" />',
2132 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="<\\3" />',
2133 '<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":-)" />',
2134 '<img src="' . $a->get_baseurl() . '/images/smiley-wink.gif" alt=";-)" />',
2135 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":-(" />',
2136 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":(" />',
2137 '<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":-P" />',
2138 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-\"" />',
2139 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-x" />',
2140 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-X" />',
2141 '<img src="' . $a->get_baseurl() . '/images/smiley-laughing.gif" alt=":-D" />',
2142 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-|" />',
2143 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-O" />'
2150 * Function : profile_load
2152 * @parameter string $nickname
2153 * @parameter int $profile
2155 * Summary: Loads a profile into the page sidebar.
2156 * The function requires a writeable copy of the main App structure, and the nickname
2157 * of a registered local account.
2159 * If the viewer is an authenticated remote viewer, the profile displayed is the
2160 * one that has been configured for his/her viewing in the Contact manager.
2161 * Passing a non-zero profile ID can also allow a preview of a selected profile
2164 * Profile information is placed in the App structure for later retrieval.
2165 * Honours the owner's chosen theme for display.
2169 if(! function_exists('profile_load')) {
2170 function profile_load(&$a, $nickname, $profile = 0) {
2172 $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
2173 intval($_SESSION['visitor_id']));
2175 $profile = $r[0]['profile-id'];
2181 $profile_int = intval($profile);
2182 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2183 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2184 WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d LIMIT 1",
2186 intval($profile_int)
2190 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2191 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2192 WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 LIMIT 1",
2197 if(($r === false) || (! count($r))) {
2198 notice( t('No profile') . EOL );
2203 $a->profile = $r[0];
2206 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
2207 $_SESSION['theme'] = $a->profile['theme'];
2209 if(! (x($a->page,'aside')))
2210 $a->page['aside'] = '';
2212 $a->page['aside'] .= profile_sidebar($a->profile);
2213 $a->page['aside'] .= contact_block();
2221 * Function: profile_sidebar
2223 * Formats a profile for display in the sidebar.
2224 * It is very difficult to templatise the HTML completely
2225 * because of all the conditional logic.
2227 * @parameter: array $profile
2229 * Returns HTML string stuitable for sidebar inclusion
2230 * Exceptions: Returns empty string if passed $profile is wrong type or not populated
2235 if(! function_exists('profile_sidebar')) {
2236 function profile_sidebar($profile) {
2242 if((! is_array($profile)) && (! count($profile)))
2245 call_hooks('profile_sidebar_enter', $profile);
2247 $fullname = '<div class="fn">' . $profile['name'] . '</div>';
2249 $pdesc = '<div class="title">' . $profile['pdesc'] . '</div>';
2253 $photo = '<div id="profile-photo-wrapper"><img class="photo" src="' . $profile['photo'] . '" alt="' . $profile['name'] . '" /></div>';
2255 // don't show connect link to yourself
2257 $connect = (($profile['uid'] != local_user()) ? '<li><a id="dfrn-request-link" href="dfrn_request/' . $profile['nickname'] . '">' . t('Connect') . '</a></li>' : '');
2259 // don't show connect link to authenticated visitors either
2261 if((remote_user()) && ($_SESSION['visitor_visiting'] == $profile['uid']))
2264 if((x($profile,'address') == 1)
2265 || (x($profile,'locality') == 1)
2266 || (x($profile,'region') == 1)
2267 || (x($profile,'postal-code') == 1)
2268 || (x($profile,'country-name') == 1))
2272 $location .= '<div class="location"><span class="location-label">' . t('Location:') . '</span> <div class="adr">';
2273 $location .= ((x($profile,'address') == 1) ? '<div class="street-address">' . $profile['address'] . '</div>' : '');
2274 $location .= (((x($profile,'locality') == 1) || (x($profile,'region') == 1) || (x($profile,'postal-code') == 1))
2275 ? '<span class="city-state-zip"><span class="locality">' . $profile['locality'] . '</span>'
2276 . ((x($profile['locality']) == 1) ? t(', ') : '')
2277 . '<span class="region">' . $profile['region'] . '</span>'
2278 . ' <span class="postal-code">' . $profile['postal-code'] . '</span></span>' : '');
2279 $location .= ((x($profile,'country-name') == 1) ? ' <span class="country-name">' . $profile['country-name'] . '</span>' : '');
2280 $location .= '</div></div><div class="profile-clear"></div>';
2284 $gender = ((x($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>' : '');
2286 $pubkey = ((x($profile,'pubkey') == 1) ? '<div class="key" style="display:none;">' . $profile['pubkey'] . '</div>' : '');
2288 $marital = ((x($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>' : '');
2290 $homepage = ((x($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>' : '');
2292 $tpl = load_view_file('view/profile_vcard.tpl');
2294 $o .= replace_macros($tpl, array(
2295 '$fullname' => $fullname,
2299 '$connect' => $connect,
2300 '$location' => $location,
2301 '$gender' => $gender,
2302 '$pubkey' => $pubkey,
2303 '$marital' => $marital,
2304 '$homepage' => $homepage
2308 $arr = array('profile' => $profile, 'entry' => $o);
2310 call_hooks('profile_sidebar', $arr);
2316 if(! function_exists('register_hook')) {
2317 function register_hook($hook,$file,$function) {
2319 $r = q("SELECT * FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2327 $r = q("INSERT INTO `hook` (`hook`, `file`, `function`) VALUES ( '%s', '%s', '%s' ) ",
2335 if(! function_exists('unregister_hook')) {
2336 function unregister_hook($hook,$file,$function) {
2338 $r = q("DELETE FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2347 if(! function_exists('load_hooks')) {
2348 function load_hooks() {
2350 $a->hooks = array();
2351 $r = q("SELECT * FROM `hook` WHERE 1");
2353 foreach($r as $rr) {
2354 $a->hooks[] = array($rr['hook'], $rr['file'], $rr['function']);
2360 if(! function_exists('call_hooks')) {
2361 function call_hooks($name, &$data = null) {
2364 if(count($a->hooks)) {
2365 foreach($a->hooks as $hook) {
2366 if($hook[HOOK_HOOK] === $name) {
2367 @include_once($hook[HOOK_FILE]);
2368 if(function_exists($hook[HOOK_FUNCTION])) {
2369 $func = $hook[HOOK_FUNCTION];
2378 if(! function_exists('day_translate')) {
2379 function day_translate($s) {
2380 $ret = str_replace(array('Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'),
2381 array( t('Monday'), t('Tuesday'), t('Wednesday'), t('Thursday'), t('Friday'), t('Saturday'), t('Sunday')),
2384 $ret = str_replace(array('January','February','March','April','May','June','July','August','September','October','November','December'),
2385 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')),
2391 if(! function_exists('get_birthdays')) {
2392 function get_birthdays() {
2400 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
2402 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
2403 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
2404 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
2405 ORDER BY `start` DESC ",
2406 intval(local_user()),
2407 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
2408 dbesc(datetime_convert('UTC','UTC','now'))
2411 if($r && count($r)) {
2414 if(strlen($rr['name']))
2417 $o .= '<div id="birthday-notice" class="birthday-notice fakelink" onclick=openClose(\'birthday-wrapper\'); >' . t('Birthday Reminders') . ' ' . '(' . $total . ')' . '</div>';
2418 $o .= '<div id="birthday-wrapper" style="display: none;" ><div id="birthday-title">' . t('Birthdays this week:') . '</div>';
2419 $o .= '<div id="birthday-adjust">' . t("\x28Adjusted for local time\x29") . '</div>';
2420 $o .= '<div id="birthday-title-end"></div>';
2422 foreach($r as $rr) {
2423 if(! strlen($rr['name']))
2425 $now = strtotime('now');
2426 $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
2428 $o .= '<div class="birthday-list" id="birthday-' . $rr['eid'] . '"><a class="sparkle" href="'
2429 . $a->get_baseurl() . '/redir/' . $rr['cid'] . '">' . $rr['name'] . '</a> '
2430 . day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $bd_format)) . (($today) ? ' ' . t('[today]') : '')
2434 $o .= '</div></div>';
2443 * Compare two URLs to see if they are the same, but ignore
2444 * slight but hopefully insignificant differences such as if one
2445 * is https and the other isn't, or if one is www.something and
2446 * the other isn't - and also ignore case differences.
2448 * Return true if the URLs match, otherwise false.
2452 if(! function_exists('link_compare')) {
2453 function link_compare($a,$b) {
2454 $a1 = str_replace(array('https:','//www.'), array('http:','//'), $a);
2455 $b1 = str_replace(array('https:','//www.'), array('http:','//'), $b);
2456 if(strcasecmp($a1,$b1) === 0)
2462 if(! function_exists('prepare_body')) {
2463 function prepare_body($item) {
2464 return prepare_text($item['body']);
2467 if(! function_exists('prepare_text')) {
2468 function prepare_text($text) {
2470 require_once('include/bbcode.php');
2472 $s = smilies(bbcode($text));
2479 * Wrap calls to proc_close(proc_open()) and call hook
2480 * so plugins can take part in process :)
2483 * $cmd program to run
2484 * next args are passed as $cmd command line
2486 * e.g.: proc_run("ls","-la","/tmp");
2488 * $cmd and string args are surrounded with ""
2491 if(! function_exists('proc_run')) {
2492 function proc_run($cmd){
2496 $args = func_get_args();
2497 call_hooks("proc_run", $args);
2499 if(count($args) && $args[0] === 'php')
2500 $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
2502 foreach ($args as $arg){
2503 $arg = escapeshellarg($arg);
2505 $cmdline = implode($args," ");
2506 proc_close(proc_open($cmdline." &",array(),$foo));
2509 if(! function_exists('current_theme')) {
2510 function current_theme(){
2511 $app_base_themes = array('duepuntozero', 'loozah');
2515 $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
2516 $theme_name = ((is_array($_SESSION) && x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
2518 if($theme_name && file_exists('view/theme/' . $theme_name . '/style.css'))
2519 return($theme_name);
2521 foreach($app_base_themes as $t) {
2522 if(file_exists('view/theme/' . $t . '/style.css'))
2526 $fallback = glob('view/theme/*/style.css');
2527 if(count($fallback))
2528 return (str_replace('view/theme/','', str_replace("/style.css","",$fallback[0])));
2533 * Return full URL to theme which is currently in effect.
2534 * Provide a sane default if nothing is chosen or the specified theme does not exist.
2536 if(! function_exists('current_theme_url')) {
2537 function current_theme_url() {
2539 $t = current_theme();
2540 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
2543 if(! function_exists('feed_birthday')) {
2544 function feed_birthday($uid,$tz) {
2548 * Determine the next birthday, but only if the birthday is published
2549 * in the default profile. We _could_ also look for a private profile that the
2550 * recipient can see, but somebody could get mad at us if they start getting
2551 * public birthday greetings when they haven't made this info public.
2553 * Assuming we are able to publish this info, we are then going to convert
2554 * the start time from the owner's timezone to UTC.
2556 * This will potentially solve the problem found with some social networks
2557 * where birthdays are converted to the viewer's timezone and salutations from
2558 * elsewhere in the world show up on the wrong day. We will convert it to the
2559 * viewer's timezone also, but first we are going to convert it from the birthday
2560 * person's timezone to GMT - so the viewer may find the birthday starting at
2561 * 6:00PM the day before, but that will correspond to midnight to the birthday person.
2567 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
2571 if($p && count($p)) {
2572 $tmp_dob = substr($p[0]['dob'],5);
2573 if(intval($tmp_dob)) {
2574 $y = datetime_convert($tz,$tz,'now','Y');
2575 $bd = $y . '-' . $tmp_dob . ' 00:00';
2576 $t_dob = strtotime($bd);
2577 $now = strtotime(datetime_convert($tz,$tz,'now'));
2579 $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
2580 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
2588 * return atom link elements for all of our hubs
2591 if(! function_exists('feed_hublinks')) {
2592 function feed_hublinks() {
2594 $hub = get_config('system','huburl');
2598 $hubs = explode(',', $hub);
2600 foreach($hubs as $h) {
2604 $hubxml .= '<link rel="hub" href="' . xmlify($h) . '" />' . "\n" ;
2611 /* return atom link elements for salmon endpoints */
2613 if(! function_exists('feed_salmonlinks')) {
2614 function feed_salmonlinks($nick) {
2618 $salmon = '<link rel="salmon" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2620 // old style links that status.net still needed as of 12/2010
2622 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-replies" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2623 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-mention" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2627 if(! function_exists('get_plink')) {
2628 function get_plink($item) {
2630 $plink = (((x($item,'plink')) && (! $item['private'])) ? '<div class="wall-item-links-wrapper"><a href="'
2631 . $item['plink'] . '" title="' . t('link to source') . '" target="external-link" ><img src="' . $a->get_baseurl() . '/images/remote-link.gif" alt="' . t('link to source') . '" /></a></div>' : '');
2635 if(! function_exists('unamp')) {
2636 function unamp($s) {
2637 return str_replace('&', '&', $s);
2641 if(! function_exists('lang_selector')) {
2642 function lang_selector() {
2644 $o .= '<div id="language-selector" style="display: none;" >';
2645 $o .= '<form action="" method="post" ><select name="system_language" onchange="this.form.submit();" >';
2646 $langs = glob('view/*/strings.php');
2647 if(is_array($langs) && count($langs)) {
2648 if(! in_array('view/en/strings.php',$langs))
2649 $langs[] = 'view/en/';
2650 foreach($langs as $l) {
2652 $ll = substr($ll,0,strrpos($ll,'/'));
2653 $selected = (($ll === $lang) ? ' selected="selected" ' : '');
2654 $o .= '<option value="' . $ll . '"' . $selected . '>' . $ll . '</option>';
2657 $o .= '</select></form></div>';
2662 if(! function_exists('parse_xml_string')) {
2663 function parse_xml_string($s) {
2664 if(! strstr($s,'<?xml'))
2666 $s2 = substr($s,strpos($s,'<?xml'));
2667 libxml_use_internal_errors(true);
2668 $x = @simplexml_load_string($s2);
2669 if(count(libxml_get_errors()))
2670 foreach(libxml_get_errors() as $err)
2671 logger('libxml: parse: ' . $err->code." at ".$err->line.":".$err->column." : ".$err->message, LOGGER_DATA);
2672 libxml_clear_errors();