4 ini_set('pcre.backtrack_limit', 250000);
6 define ( 'FRIENDIKA_VERSION', '2.1.970' );
7 define ( 'DFRN_PROTOCOL_VERSION', '2.21' );
8 define ( 'DB_UPDATE_VERSION', 1054 );
10 define ( 'EOL', "<br />\r\n" );
11 define ( 'ATOM_TIME', 'Y-m-d\TH:i:s\Z' );
12 define ( 'DOWN_ARROW', '⇩' );
16 * Image storage quality. Lower numbers save space at cost of image detail.
17 * For ease of upgrade, please do not change here. Change jpeg quality with
18 * set_config('system','jpeg_quality',n) in .htconfig.php
19 * where n is netween 1 and 100, and with very poor results below about 50
23 define ( 'JPEG_QUALITY', 100 );
26 * SSL redirection policies
29 define ( 'SSL_POLICY_NONE', 0 );
30 define ( 'SSL_POLICY_FULL', 1 );
31 define ( 'SSL_POLICY_SELFSIGN', 2 );
38 define ( 'LOGGER_NORMAL', 0 );
39 define ( 'LOGGER_TRACE', 1 );
40 define ( 'LOGGER_DEBUG', 2 );
41 define ( 'LOGGER_DATA', 3 );
42 define ( 'LOGGER_ALL', 4 );
45 * registration policies
48 define ( 'REGISTER_CLOSED', 0 );
49 define ( 'REGISTER_APPROVE', 1 );
50 define ( 'REGISTER_OPEN', 2 );
54 * When used in contact records, this indicates that 'uid' has
55 * this relationship with contact['name']
58 define ( 'REL_VIP', 1);
59 define ( 'REL_FAN', 2);
60 define ( 'REL_BUD', 3);
66 define ( 'HOOK_HOOK', 0);
67 define ( 'HOOK_FILE', 1);
68 define ( 'HOOK_FUNCTION', 2);
74 * PAGE_NORMAL is a typical personal profile account
75 * PAGE_SOAPBOX automatically approves all friend requests as REL_FAN, (readonly)
76 * PAGE_COMMUNITY automatically approves all friend requests as REL_FAN, but with
77 * write access to wall and comments (no email and not included in page owner's ACL lists)
78 * PAGE_FREELOVE automatically approves all friend requests as full friends (REL_BUD).
82 define ( 'PAGE_NORMAL', 0 );
83 define ( 'PAGE_SOAPBOX', 1 );
84 define ( 'PAGE_COMMUNITY', 2 );
85 define ( 'PAGE_FREELOVE', 3 );
88 * Network and protocol family types
91 define ( 'NETWORK_DFRN', 'dfrn'); // Friendika, Mistpark, other DFRN implementations
92 define ( 'NETWORK_OSTATUS', 'stat'); // status.net, identi.ca, GNU-social, other OStatus implementations
93 define ( 'NETWORK_FEED', 'feed'); // RSS/Atom feeds with no known "post/notify" protocol
94 define ( 'NETWORK_DIASPORA', 'dspr'); // Diaspora
95 define ( 'NETWORK_MAIL', 'mail'); // IMAP/POP
96 define ( 'NETWORK_FACEBOOK', 'face'); // Facebook API
100 * Maximum number of "people who like (or don't like) this" that we will list by name
103 define ( 'MAX_LIKERS', 75);
106 * email notification options
109 define ( 'NOTIFY_INTRO', 0x0001 );
110 define ( 'NOTIFY_CONFIRM', 0x0002 );
111 define ( 'NOTIFY_WALL', 0x0004 );
112 define ( 'NOTIFY_COMMENT', 0x0008 );
113 define ( 'NOTIFY_MAIL', 0x0010 );
116 * various namespaces we may need to parse
119 define ( 'NAMESPACE_DFRN' , 'http://purl.org/macgirvin/dfrn/1.0' );
120 define ( 'NAMESPACE_THREAD' , 'http://purl.org/syndication/thread/1.0' );
121 define ( 'NAMESPACE_TOMB' , 'http://purl.org/atompub/tombstones/1.0' );
122 define ( 'NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/' );
123 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
124 define ( 'NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia' );
125 define ( 'NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env' );
126 define ( 'NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe' );
127 define ( 'NAMESPACE_GEORSS', 'http://www.georss.org/georss' );
128 define ( 'NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0' );
129 define ( 'NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from' );
132 * activity stream defines
135 define ( 'ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like' );
136 define ( 'ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike' );
137 define ( 'ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart' );
139 define ( 'ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
140 define ( 'ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
141 define ( 'ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
142 define ( 'ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post' );
143 define ( 'ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update' );
144 define ( 'ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
146 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
147 define ( 'ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note' );
148 define ( 'ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person' );
149 define ( 'ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
150 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
151 define ( 'ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
154 * item weight for query ordering
157 define ( 'GRAVITY_PARENT', 0);
158 define ( 'GRAVITY_LIKE', 3);
159 define ( 'GRAVITY_COMMENT', 6);
163 * Reverse the effect of magic_quotes_gpc if it is enabled.
164 * Please disable magic_quotes_gpc so we don't have to do this.
165 * See http://php.net/manual/en/security.magicquotes.disabling.php
169 if (get_magic_quotes_gpc()) {
170 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
171 while (list($key, $val) = each($process)) {
172 foreach ($val as $k => $v) {
173 unset($process[$key][$k]);
175 $process[$key][stripslashes($k)] = $v;
176 $process[] = &$process[$key][stripslashes($k)];
178 $process[$key][stripslashes($k)] = stripslashes($v);
188 require_once("include/pgettext.php");
195 * Our main application structure for the life of this page
196 * Primarily deals with the URL that got us here
197 * and tries to make some sense of it, and
198 * stores our page contents and config storage
199 * and anything else that might need to be passed around
200 * before we spit the page out.
204 if(! class_exists('App')) {
207 public $module_loaded = false;
208 public $query_string;
216 public $page_contact;
219 public $error = false;
229 public $interactive = true;
240 private $curl_headers;
242 function __construct() {
244 $this->config = array();
245 $this->page = array();
246 $this->pager= array();
248 $this->query_string = '';
250 $this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'])) ? 'https' : 'http' );
252 if(x($_SERVER,'SERVER_NAME')) {
253 $this->hostname = $_SERVER['SERVER_NAME'];
256 * Figure out if we are running at the top of a domain
257 * or in a sub-directory and adjust accordingly
260 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
261 if(isset($path) && strlen($path) && ($path != $this->path))
265 set_include_path("include/$this->hostname" . PATH_SEPARATOR . 'include' . PATH_SEPARATOR . '.' );
267 if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=")
268 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
270 $this->cmd = trim($_GET['q'],'/\\');
276 * Break the URL path into C style argc/argv style arguments for our
277 * modules. Given "http://example.com/module/arg1/arg2", $this->argc
278 * will be 3 (integer) and $this->argv will contain:
284 * There will always be one argument. If provided a naked domain
285 * URL, $this->argv[0] is set to "home".
289 $this->argv = explode('/',$this->cmd);
290 $this->argc = count($this->argv);
291 if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
292 $this->module = str_replace(".", "_", $this->argv[0]);
295 $this->module = 'home';
299 * Special handling for the webfinger/lrdd host XRD file
300 * Just spit out the contents and exit.
303 if($this->cmd === '.well-known/host-meta') {
304 require_once('include/hostxrd.php');
305 hostxrd($this->get_baseurl());
310 * See if there is any page number information, and initialise
314 $this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1);
315 $this->pager['itemspage'] = 50;
316 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
317 $this->pager['total'] = 0;
320 function get_baseurl($ssl = false) {
322 $scheme = $this->scheme;
324 if(x($this->config,'ssl_policy')) {
325 if(($ssl) || ($this->config['ssl_policy'] == SSL_POLICY_FULL))
327 if(($this->config['ssl_policy'] == SSL_POLICY_SELFSIGN) && (local_user() || x($_POST,'auth-params')))
331 $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
332 return $this->baseurl;
335 function set_baseurl($url) {
336 $parsed = @parse_url($url);
338 $this->baseurl = $url;
341 $this->scheme = $parsed['scheme'];
343 $this->hostname = $parsed['host'];
344 if(x($parsed,'port'))
345 $this->hostname .= ':' . $parsed['port'];
346 if(x($parsed,'path'))
347 $this->path = trim($parsed['path'],'\\/');
352 function get_hostname() {
353 return $this->hostname;
356 function set_hostname($h) {
357 $this->hostname = $h;
360 function set_path($p) {
361 $this->path = trim(trim($p),'/');
364 function get_path() {
368 function set_pager_total($n) {
369 $this->pager['total'] = intval($n);
372 function set_pager_itemspage($n) {
373 $this->pager['itemspage'] = intval($n);
374 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
378 function init_pagehead() {
379 $this->page['title'] = $this->config['sitename'];
380 $tpl = load_view_file('view/head.tpl');
381 $this->page['htmlhead'] = replace_macros($tpl,array(
382 '$baseurl' => $this->get_baseurl() . '/',
383 '$generator' => 'Friendika' . ' ' . FRIENDIKA_VERSION,
384 '$delitem' => t('Delete this item?'),
385 '$comment' => t('Comment')
389 function set_curl_code($code) {
390 $this->curl_code = $code;
393 function get_curl_code() {
394 return $this->curl_code;
397 function set_curl_headers($headers) {
398 $this->curl_headers = $headers;
401 function get_curl_headers() {
402 return $this->curl_headers;
408 // retrieve the App structure
409 // useful in functions which require it but don't get it passed to them
411 if(! function_exists('get_app')) {
418 // Multi-purpose function to check variable state.
419 // Usage: x($var) or $x($array,'key')
420 // returns false if variable/key is not set
421 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
422 // e.g. x('') or x(0) returns 0;
424 if(! function_exists('x')) {
425 function x($s,$k = NULL) {
427 if((is_array($s)) && (array_key_exists($k,$s))) {
445 // called from db initialisation if db is dead.
447 if(! function_exists('system_unavailable')) {
448 function system_unavailable() {
449 include('system_unavailable.php');
454 // Primarily involved with database upgrade, but also sets the
455 // base url for use in cmdline programs which don't have
456 // $_SERVER variables, and synchronising the state of installed plugins.
459 if(! function_exists('check_config')) {
460 function check_config(&$a) {
463 load_config('system');
465 $build = get_config('system','build');
467 $build = set_config('system','build',DB_UPDATE_VERSION);
469 $url = get_config('system','url');
471 // if the url isn't set or the stored url is radically different
472 // than the currently visited url, store the current value accordingly.
473 // "Radically different" ignores common variations such as http vs https
474 // and www.example.com vs example.com.
476 if((! x($url)) || (! link_compare($url,$a->get_baseurl())))
477 $url = set_config('system','url',$a->get_baseurl());
479 if($build != DB_UPDATE_VERSION) {
480 $stored = intval($build);
481 $current = intval(DB_UPDATE_VERSION);
482 if(($stored < $current) && file_exists('update.php')) {
483 // We're reporting a different version than what is currently installed.
484 // Run any existing update scripts to bring the database up to current.
486 require_once('update.php');
487 for($x = $stored; $x < $current; $x ++) {
488 if(function_exists('update_' . $x)) {
489 $func = 'update_' . $x;
493 set_config('system','build', DB_UPDATE_VERSION);
499 * Synchronise plugins:
501 * $a->config['system']['addon'] contains a comma-separated list of names
502 * of plugins/addons which are used on this system.
503 * Go through the database list of already installed addons, and if we have
504 * an entry, but it isn't in the config list, call the uninstall procedure
505 * and mark it uninstalled in the database (for now we'll remove it).
506 * Then go through the config list and if we have a plugin that isn't installed,
507 * call the install procedure and add it to the database.
511 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
515 $installed = array();
517 $plugins = get_config('system','addon');
518 $plugins_arr = array();
521 $plugins_arr = explode(',',str_replace(' ', '',$plugins));
523 $a->plugins = $plugins_arr;
525 $installed_arr = array();
527 if(count($installed)) {
528 foreach($installed as $i) {
529 if(! in_array($i['name'],$plugins_arr)) {
530 logger("Addons: uninstalling " . $i['name']);
531 q("DELETE FROM `addon` WHERE `id` = %d LIMIT 1",
535 @include_once('addon/' . $i['name'] . '/' . $i['name'] . '.php');
536 if(function_exists($i['name'] . '_uninstall')) {
537 $func = $i['name'] . '_uninstall';
542 $installed_arr[] = $i['name'];
546 if(count($plugins_arr)) {
547 foreach($plugins_arr as $p) {
548 if(! in_array($p,$installed_arr)) {
549 logger("Addons: installing " . $p);
550 $t = filemtime('addon/' . $p . '/' . $p . '.php');
551 @include_once('addon/' . $p . '/' . $p . '.php');
552 if(function_exists($p . '_install')) {
553 $func = $p . '_install';
555 $r = q("INSERT INTO `addon` (`name`, `installed`, `timestamp`) VALUES ( '%s', 1, %d ) ",
570 // reload all updated plugins
572 if(! function_exists('reload_plugins')) {
573 function reload_plugins() {
574 $plugins = get_config('system','addon');
575 if(strlen($plugins)) {
577 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
581 $installed = array();
583 $parr = explode(',',$plugins);
585 foreach($parr as $pl) {
588 $t = filemtime('addon/' . $pl . '/' . $pl . '.php');
589 foreach($installed as $i) {
590 if(($i['name'] == $pl) && ($i['timestamp'] != $t)) {
591 logger('Reloading plugin: ' . $i['name']);
592 @include_once('addon/' . $pl . '/' . $pl . '.php');
594 if(function_exists($pl . '_uninstall')) {
595 $func = $pl . '_uninstall';
598 if(function_exists($pl . '_install')) {
599 $func = $pl . '_install';
602 q("UPDATE `addon` SET `timestamp` = %d WHERE `id` = %d LIMIT 1",
615 // This is our template processor.
616 // $s is the string requiring macro substitution.
617 // $r is an array of key value pairs (search => replace)
618 // returns substituted string.
619 // WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other.
620 // For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing,
621 // depending on the order in which they were declared in the array.
623 require_once("include/template_processor.php");
625 if(! function_exists('replace_macros')) {
626 function replace_macros($s,$r) {
629 return $t->replace($s,$r);
634 // curl wrapper. If binary flag is true, return binary
637 if(! function_exists('fetch_url')) {
638 function fetch_url($url,$binary = false, &$redirects = 0) {
642 $ch = curl_init($url);
643 if(($redirects > 8) || (! $ch))
646 curl_setopt($ch, CURLOPT_HEADER, true);
647 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
650 $curl_time = intval(get_config('system','curl_timeout'));
651 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
653 // by default we will allow self-signed certs
654 // but you can override this
656 $check_cert = get_config('system','verifyssl');
657 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
659 $prx = get_config('system','proxy');
661 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
662 curl_setopt($ch, CURLOPT_PROXY, $prx);
663 $prxusr = get_config('system','proxyuser');
665 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
668 curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
670 $a->set_curl_code(0);
672 // don't let curl abort the entire application
673 // if it throws any errors.
675 $s = @curl_exec($ch);
677 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
678 $header = substr($s,0,strpos($s,"\r\n\r\n"));
679 if(stristr($header,'100') && (strlen($header) < 30)) {
680 // 100 Continue has two headers, get the real one
681 $s = substr($s,strlen($header)+4);
682 $header = substr($s,0,strpos($s,"\r\n\r\n"));
684 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
686 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
687 $url = trim(array_pop($matches));
688 $url_parsed = @parse_url($url);
689 if (isset($url_parsed)) {
691 return fetch_url($url,$binary,$redirects);
694 $a->set_curl_code($http_code);
696 $body = substr($s,strlen($header)+4);
698 /* one more try to make sure there are no more headers */
700 if(strpos($body,'HTTP/') === 0) {
701 $header = substr($body,0,strpos($body,"\r\n\r\n"));
702 $body = substr($body,strlen($header)+4);
705 $a->set_curl_headers($header);
711 // post request to $url. $params is an array of post variables.
713 if(! function_exists('post_url')) {
714 function post_url($url,$params, $headers = null, &$redirects = 0) {
716 $ch = curl_init($url);
717 if(($redirects > 8) || (! $ch))
720 curl_setopt($ch, CURLOPT_HEADER, true);
721 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
722 curl_setopt($ch, CURLOPT_POST,1);
723 curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
725 $curl_time = intval(get_config('system','curl_timeout'));
726 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
728 if(is_array($headers))
729 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
731 $check_cert = get_config('system','verifyssl');
732 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
733 $prx = get_config('system','proxy');
735 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
736 curl_setopt($ch, CURLOPT_PROXY, $prx);
737 $prxusr = get_config('system','proxyuser');
739 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
742 $a->set_curl_code(0);
744 // don't let curl abort the entire application
745 // if it throws any errors.
747 $s = @curl_exec($ch);
749 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
750 $header = substr($s,0,strpos($s,"\r\n\r\n"));
751 if(stristr($header,'100') && (strlen($header) < 30)) {
752 // 100 Continue has two headers, get the real one
753 $s = substr($s,strlen($header)+4);
754 $header = substr($s,0,strpos($s,"\r\n\r\n"));
756 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
758 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
759 $url = trim(array_pop($matches));
760 $url_parsed = @parse_url($url);
761 if (isset($url_parsed)) {
763 return post_url($url,$binary,$headers,$redirects);
766 $a->set_curl_code($http_code);
767 $body = substr($s,strlen($header)+4);
769 /* one more try to make sure there are no more headers */
771 if(strpos($body,'HTTP/') === 0) {
772 $header = substr($body,0,strpos($body,"\r\n\r\n"));
773 $body = substr($body,strlen($header)+4);
776 $a->set_curl_headers($header);
782 // random hash, 64 chars
784 if(! function_exists('random_string')) {
785 function random_string() {
786 return(hash('sha256',uniqid(rand(),true)));
790 * This is our primary input filter.
792 * The high bit hack only involved some old IE browser, forget which (IE5/Mac?)
793 * that had an XSS attack vector due to stripping the high-bit on an 8-bit character
794 * after cleansing, and angle chars with the high bit set could get through as markup.
796 * This is now disabled because it was interfering with some legitimate unicode sequences
797 * and hopefully there aren't a lot of those browsers left.
799 * Use this on any text input where angle chars are not valid or permitted
800 * They will be replaced with safer brackets. This may be filtered further
801 * if these are not allowed either.
805 if(! function_exists('notags')) {
806 function notags($string) {
808 return(str_replace(array("<",">"), array('[',']'), $string));
810 // High-bit filter no longer used
811 // return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string));
814 // use this on "body" or "content" input where angle chars shouldn't be removed,
815 // and allow them to be safely displayed.
817 if(! function_exists('escape_tags')) {
818 function escape_tags($string) {
820 return(htmlspecialchars($string));
823 // wrapper for adding a login box. If $register == true provide a registration
824 // link. This will most always depend on the value of $a->config['register_policy'].
825 // returns the complete html for inserting into the page
827 if(! function_exists('login')) {
828 function login($register = false) {
830 $register_tpl = (($register) ? load_view_file("view/register-link.tpl") : "");
832 $register_html = replace_macros($register_tpl,array(
833 '$title' => t('Create a New Account'),
834 '$desc' => t('Register')
837 $noid = get_config('system','no_openid');
839 $classname = 'no-openid';
840 $namelabel = t('Nickname or Email address: ');
841 $passlabel = t('Password: ');
845 $classname = 'openid';
846 $namelabel = t('Nickname/Email/OpenID: ');
847 $passlabel = t("Password \x28if not OpenID\x29: ");
850 $lostpass = t('Forgot your password?');
851 $lostlink = t('Password Reset');
854 $tpl = load_view_file("view/logout.tpl");
857 $tpl = load_view_file("view/login.tpl");
861 $o = '<script type="text/javascript"> $(document).ready(function() { $("#login-name").focus();} );</script>';
863 $o .= replace_macros($tpl,array(
864 '$logout' => t('Logout'),
865 '$register_html' => $register_html,
866 '$classname' => $classname,
867 '$namelabel' => $namelabel,
868 '$passlabel' => $passlabel,
870 '$lostpass' => $lostpass,
871 '$lostlink' => $lostlink
877 // generate a string that's random, but usually pronounceable.
878 // used to generate initial passwords
880 if(! function_exists('autoname')) {
881 function autoname($len) {
883 $vowels = array('a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u');
884 if(mt_rand(0,5) == 4)
902 's','sc','sh','sm','sp','st',
910 $midcons = array('ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
911 'nd','ng','nk','nt','rn','rp','rt');
913 $noend = array('bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
914 'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh');
916 $start = mt_rand(0,2);
924 for ($x = 0; $x < $len; $x ++) {
925 $r = mt_rand(0,count($table) - 1);
928 if($table == $vowels)
929 $table = array_merge($cons,$midcons);
935 $word = substr($word,0,$len);
937 foreach($noend as $noe) {
938 if((strlen($word) > 2) && (substr($word,-2) == $noe)) {
939 $word = substr($word,0,-1);
943 if(substr($word,-1) == 'q')
944 $word = substr($word,0,-1);
948 // Used to end the current process, after saving session state.
950 if(! function_exists('killme')) {
952 session_write_close();
956 // redirect to another URL and terminate this process.
958 if(! function_exists('goaway')) {
959 function goaway($s) {
960 header("Location: $s");
964 // Generic XML return
965 // Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
966 // of $st and an optional text <message> of $message and terminates the current process.
968 if(! function_exists('xml_status')) {
969 function xml_status($st, $message = '') {
971 $xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
974 logger('xml_status returning non_zero: ' . $st . " message=" . $message);
976 header( "Content-type: text/xml" );
977 echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
978 echo "<result>\r\n\t<status>$st</status>\r\n$xml_message</result>\r\n";
982 // Returns the uid of locally logged in user or false.
984 if(! function_exists('local_user')) {
985 function local_user() {
986 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
987 return intval($_SESSION['uid']);
991 // Returns contact id of authenticated site visitor or false
993 if(! function_exists('remote_user')) {
994 function remote_user() {
995 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
996 return intval($_SESSION['visitor_id']);
1000 // contents of $s are displayed prominently on the page the next time
1001 // a page is loaded. Usually used for errors or alerts.
1003 if(! function_exists('notice')) {
1004 function notice($s) {
1007 $_SESSION['sysmsg'] .= $s;
1010 // wrapper around config to limit the text length of an incoming message
1012 if(! function_exists('get_max_import_size')) {
1013 function get_max_import_size() {
1015 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
1019 // escape text ($str) for XML transport
1020 // returns escaped text.
1022 if(! function_exists('xmlify')) {
1023 function xmlify($str) {
1026 for($x = 0; $x < strlen($str); $x ++) {
1037 $buffer .= ''';
1040 $buffer .= '"';
1056 $buffer = trim($buffer);
1061 // pass xml escaped text ($s), returns unescaped text
1063 if(! function_exists('unxmlify')) {
1064 function unxmlify($s) {
1065 $ret = str_replace('&','&', $s);
1066 $ret = str_replace(array('<','>','"','''),array('<','>','"',"'"),$ret);
1070 // convenience wrapper, reverse the operation "bin2hex"
1072 if(! function_exists('hex2bin')) {
1073 function hex2bin($s) {
1074 if(! ctype_xdigit($s)) {
1075 logger('hex2bin: illegal input: ' . print_r(debug_backtrace(), true));
1079 return(pack("H*",$s));
1082 // Automatic pagination.
1083 // To use, get the count of total items.
1084 // Then call $a->set_pager_total($number_items);
1085 // Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page
1086 // Then call paginate($a) after the end of the display loop to insert the pager block on the page
1087 // (assuming there are enough items to paginate).
1088 // When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage']
1089 // will limit the results to the correct items for the current page.
1090 // The actual page handling is then accomplished at the application layer.
1092 if(! function_exists('paginate')) {
1093 function paginate(&$a) {
1095 $stripped = preg_replace('/(&page=[0-9]*)/','',$a->query_string);
1096 $stripped = str_replace('q=','',$stripped);
1097 $stripped = trim($stripped,'/');
1098 $pagenum = $a->pager['page'];
1099 $url = $a->get_baseurl() . '/' . $stripped;
1102 if($a->pager['total'] > $a->pager['itemspage']) {
1103 $o .= '<div class="pager">';
1104 if($a->pager['page'] != 1)
1105 $o .= '<span class="pager_prev">'."<a href=\"$url".'&page='.($a->pager['page'] - 1).'">' . t('prev') . '</a></span> ';
1107 $o .= "<span class=\"pager_first\"><a href=\"$url"."&page=1\">" . t('first') . "</a></span> ";
1109 $numpages = $a->pager['total'] / $a->pager['itemspage'];
1112 $numstop = $numpages;
1114 if($numpages > 14) {
1115 $numstart = (($pagenum > 7) ? ($pagenum - 7) : 1);
1116 $numstop = (($pagenum > ($numpages - 7)) ? $numpages : ($numstart + 14));
1119 for($i = $numstart; $i <= $numstop; $i++){
1120 if($i == $a->pager['page'])
1121 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1123 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1127 if(($a->pager['total'] % $a->pager['itemspage']) != 0) {
1128 if($i == $a->pager['page'])
1129 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1131 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1135 $lastpage = (($numpages > intval($numpages)) ? intval($numpages)+1 : $numpages);
1136 $o .= "<span class=\"pager_last\"><a href=\"$url"."&page=$lastpage\">" . t('last') . "</a></span> ";
1138 if(($a->pager['total'] - ($a->pager['itemspage'] * $a->pager['page'])) > 0)
1139 $o .= '<span class="pager_next">'."<a href=\"$url"."&page=".($a->pager['page'] + 1).'">' . t('next') . '</a></span>';
1140 $o .= '</div>'."\r\n";
1145 // Turn user/group ACLs stored as angle bracketed text into arrays
1147 if(! function_exists('expand_acl')) {
1148 function expand_acl($s) {
1149 // turn string array of angle-bracketed elements into numeric array
1150 // e.g. "<1><2><3>" => array(1,2,3);
1154 $t = str_replace('<','',$s);
1155 $a = explode('>',$t);
1156 foreach($a as $aa) {
1158 $ret[] = intval($aa);
1164 // Used to wrap ACL elements in angle brackets for storage
1166 if(! function_exists('sanitise_acl')) {
1167 function sanitise_acl(&$item) {
1169 $item = '<' . intval(notags(trim($item))) . '>';
1174 // retrieve a "family" of config variables from database to cached storage
1176 if(! function_exists('load_config')) {
1177 function load_config($family) {
1179 $r = q("SELECT * FROM `config` WHERE `cat` = '%s'",
1183 foreach($r as $rr) {
1185 $a->config[$family][$k] = $rr['v'];
1190 // get a particular config variable given the family name
1191 // and key. Returns false if not set.
1192 // $instore is only used by the set_config function
1193 // to determine if the key already exists in the DB
1194 // If a key is found in the DB but doesn't exist in
1195 // local config cache, pull it into the cache so we don't have
1196 // to hit the DB again for this item.
1198 if(! function_exists('get_config')) {
1199 function get_config($family, $key, $instore = false) {
1204 if(isset($a->config[$family][$key])) {
1205 if($a->config[$family][$key] === '!<unset>!') {
1208 return $a->config[$family][$key];
1211 $ret = q("SELECT `v` FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1216 $a->config[$family][$key] = $ret[0]['v'];
1217 return $ret[0]['v'];
1220 $a->config[$family][$key] = '!<unset>!';
1225 // Store a config value ($value) in the category ($family)
1226 // under the key ($key)
1227 // Return the value, or false if the database update failed
1229 if(! function_exists('set_config')) {
1230 function set_config($family,$key,$value) {
1234 if(get_config($family,$key,true) === false) {
1235 $a->config[$family][$key] = $value;
1236 $ret = q("INSERT INTO `config` ( `cat`, `k`, `v` ) VALUES ( '%s', '%s', '%s' ) ",
1245 $ret = q("UPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1251 $a->config[$family][$key] = $value;
1259 if(! function_exists('load_pconfig')) {
1260 function load_pconfig($uid,$family) {
1262 $r = q("SELECT * FROM `pconfig` WHERE `cat` = '%s' AND `uid` = %d",
1267 foreach($r as $rr) {
1269 $a->config[$uid][$family][$k] = $rr['v'];
1276 if(! function_exists('get_pconfig')) {
1277 function get_pconfig($uid,$family, $key, $instore = false) {
1282 if(isset($a->config[$uid][$family][$key])) {
1283 if($a->config[$uid][$family][$key] === '!<unset>!') {
1286 return $a->config[$uid][$family][$key];
1290 $ret = q("SELECT `v` FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1297 $a->config[$uid][$family][$key] = $ret[0]['v'];
1298 return $ret[0]['v'];
1301 $a->config[$uid][$family][$key] = '!<unset>!';
1306 if(! function_exists('del_config')) {
1307 function del_config($family,$key) {
1310 if(x($a->config[$family],$key))
1311 unset($a->config[$family][$key]);
1312 $ret = q("DELETE FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1321 // Same as above functions except these are for personal config storage and take an
1322 // additional $uid argument.
1324 if(! function_exists('set_pconfig')) {
1325 function set_pconfig($uid,$family,$key,$value) {
1329 if(get_pconfig($uid,$family,$key,true) === false) {
1330 $a->config[$uid][$family][$key] = $value;
1331 $ret = q("INSERT INTO `pconfig` ( `uid`, `cat`, `k`, `v` ) VALUES ( %d, '%s', '%s', '%s' ) ",
1341 $ret = q("UPDATE `pconfig` SET `v` = '%s' WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1348 $a->config[$uid][$family][$key] = $value;
1355 if(! function_exists('del_pconfig')) {
1356 function del_pconfig($uid,$family,$key) {
1359 if(x($a->config[$uid][$family],$key))
1360 unset($a->config[$uid][$family][$key]);
1361 $ret = q("DELETE FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1370 // convert an XML document to a normalised, case-corrected array
1371 // used by webfinger
1373 if(! function_exists('convert_xml_element_to_array')) {
1374 function convert_xml_element_to_array($xml_element, &$recursion_depth=0) {
1376 // If we're getting too deep, bail out
1377 if ($recursion_depth > 512) {
1381 if (!is_string($xml_element) &&
1382 !is_array($xml_element) &&
1383 (get_class($xml_element) == 'SimpleXMLElement')) {
1384 $xml_element_copy = $xml_element;
1385 $xml_element = get_object_vars($xml_element);
1388 if (is_array($xml_element)) {
1389 $result_array = array();
1390 if (count($xml_element) <= 0) {
1391 return (trim(strval($xml_element_copy)));
1394 foreach($xml_element as $key=>$value) {
1397 $result_array[strtolower($key)] =
1398 convert_xml_element_to_array($value, $recursion_depth);
1401 if ($recursion_depth == 0) {
1402 $temp_array = $result_array;
1403 $result_array = array(
1404 strtolower($xml_element_copy->getName()) => $temp_array,
1408 return ($result_array);
1411 return (trim(strval($xml_element)));
1415 // Given an email style address, perform webfinger lookup and
1416 // return the resulting DFRN profile URL, or if no DFRN profile URL
1417 // is located, returns an OStatus subscription template (prefixed
1418 // with the string 'stat:' to identify it as on OStatus template).
1419 // If this isn't an email style address just return $s.
1420 // Return an empty string if email-style addresses but webfinger fails,
1421 // or if the resultant personal XRD doesn't contain a supported
1422 // subscription/friend-request attribute.
1424 if(! function_exists('webfinger_dfrn')) {
1425 function webfinger_dfrn($s) {
1426 if(! strstr($s,'@')) {
1429 $links = webfinger($s);
1430 logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA);
1432 foreach($links as $link)
1433 if($link['@attributes']['rel'] === NAMESPACE_DFRN)
1434 return $link['@attributes']['href'];
1435 foreach($links as $link)
1436 if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB)
1437 return 'stat:' . $link['@attributes']['template'];
1442 // Given an email style address, perform webfinger lookup and
1443 // return the array of link attributes from the personal XRD file.
1444 // On error/failure return an empty array.
1447 if(! function_exists('webfinger')) {
1448 function webfinger($s) {
1450 if(strstr($s,'@')) {
1451 $host = substr($s,strpos($s,'@') + 1);
1454 $tpl = fetch_lrdd_template($host);
1455 logger('webfinger: lrdd template: ' . $tpl);
1457 $pxrd = str_replace('{uri}', urlencode('acct:' . $s), $tpl);
1458 logger('webfinger: pxrd: ' . $pxrd);
1459 $links = fetch_xrd_links($pxrd);
1460 if(! count($links)) {
1461 // try with double slashes
1462 $pxrd = str_replace('{uri}', urlencode('acct://' . $s), $tpl);
1463 logger('webfinger: pxrd: ' . $pxrd);
1464 $links = fetch_xrd_links($pxrd);
1472 if(! function_exists('lrdd')) {
1473 function lrdd($uri) {
1477 // default priority is host priority, host-meta first
1481 // All we have is an email address. Resource-priority is irrelevant
1482 // because our URI isn't directly resolvable.
1484 if(strstr($uri,'@')) {
1485 return(webfinger($uri));
1488 // get the host meta file
1490 $host = @parse_url($uri);
1493 $url = ((x($host,'scheme')) ? $host['scheme'] : 'http') . '://';
1494 $url .= $host['host'] . '/.well-known/host-meta' ;
1499 logger('lrdd: constructed url: ' . $url);
1501 $xml = fetch_url($url);
1502 $headers = $a->get_curl_headers();
1507 logger('lrdd: host_meta: ' . $xml, LOGGER_DATA);
1509 $h = parse_xml_string($xml);
1511 $arr = convert_xml_element_to_array($h);
1513 if(isset($arr['xrd']['property'])) {
1514 $property = $arr['crd']['property'];
1515 if(! isset($property[0]))
1516 $properties = array($property);
1518 $properties = $property;
1519 foreach($properties as $prop)
1520 if((string) $prop['@attributes'] === 'http://lrdd.net/priority/resource')
1521 $priority = 'resource';
1524 // save the links in case we need them
1528 if(isset($arr['xrd']['link'])) {
1529 $link = $arr['xrd']['link'];
1530 if(! isset($link[0]))
1531 $links = array($link);
1536 // do we have a template or href?
1539 foreach($links as $link) {
1540 if($link['@attributes']['rel'] && attribute_contains($link['@attributes']['rel'],'lrdd')) {
1541 if(x($link['@attributes'],'template'))
1542 $tpl = $link['@attributes']['template'];
1543 elseif(x($link['@attributes'],'href'))
1544 $href = $link['@attributes']['href'];
1549 if((! isset($tpl)) || (! strpos($tpl,'{uri}')))
1552 if($priority === 'host') {
1554 $pxrd = str_replace('{uri}', urlencode($uri), $tpl);
1555 elseif(isset($href))
1558 logger('lrdd: (host priority) pxrd: ' . $pxrd);
1559 $links = fetch_xrd_links($pxrd);
1563 $lines = explode("\n",$headers);
1565 foreach($lines as $line) {
1566 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1567 return(fetch_xrd_links($matches[1]));
1575 // priority 'resource'
1578 $html = fetch_url($uri);
1579 $headers = $a->get_curl_headers();
1580 logger('lrdd: headers=' . $headers, LOGGER_DEBUG);
1582 // don't try and parse raw xml as html
1583 if(! strstr($html,'<?xml')) {
1584 require_once('library/HTML5/Parser.php');
1585 $dom = @HTML5_Parser::parse($html);
1588 $items = $dom->getElementsByTagName('link');
1589 foreach($items as $item) {
1590 $x = $item->getAttribute('rel');
1592 $pagelink = $item->getAttribute('href');
1599 if(isset($pagelink))
1600 return(fetch_xrd_links($pagelink));
1602 // next look in HTTP headers
1604 $lines = explode("\n",$headers);
1606 foreach($lines as $line) {
1607 // TODO alter the following regex to support multiple relations (space separated)
1608 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1609 $pagelink = $matches[1];
1612 // don't try and run feeds through the html5 parser
1613 if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml'))))
1615 if(stristr($html,'<rss') || stristr($html,'<feed'))
1620 if(isset($pagelink))
1621 return(fetch_xrd_links($pagelink));
1623 // If we haven't found any links, return the host xrd links (which we have already fetched)
1634 // Given a host name, locate the LRDD template from that
1635 // host. Returns the LRDD template or an empty string on
1638 if(! function_exists('fetch_lrdd_template')) {
1639 function fetch_lrdd_template($host) {
1642 $url1 = 'https://' . $host . '/.well-known/host-meta' ;
1643 $url2 = 'http://' . $host . '/.well-known/host-meta' ;
1644 $links = fetch_xrd_links($url1);
1645 logger('template (https): ' . print_r($links,true));
1646 if(! count($links)) {
1647 $links = fetch_xrd_links($url2);
1648 logger('template (http): ' . print_r($links,true));
1651 foreach($links as $link)
1652 if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd')
1653 $tpl = $link['@attributes']['template'];
1655 if(! strpos($tpl,'{uri}'))
1660 // Given a URL, retrieve the page as an XRD document.
1661 // Return an array of links.
1662 // on error/failure return empty array.
1664 if(! function_exists('fetch_xrd_links')) {
1665 function fetch_xrd_links($url) {
1668 $xml = fetch_url($url);
1672 logger('fetch_xrd_links: ' . $xml, LOGGER_DATA);
1673 $h = parse_xml_string($xml);
1674 $arr = convert_xml_element_to_array($h);
1678 if(isset($arr['xrd']['link'])) {
1679 $link = $arr['xrd']['link'];
1680 if(! isset($link[0]))
1681 $links = array($link);
1685 if(isset($arr['xrd']['alias'])) {
1686 $alias = $arr['xrd']['alias'];
1687 if(! isset($alias[0]))
1688 $aliases = array($alias);
1691 foreach($aliases as $alias) {
1692 $links[]['@attributes'] = array('rel' => 'alias' , 'href' => $alias);
1696 logger('fetch_xrd_links: ' . print_r($links,true), LOGGER_DATA);
1702 // Convert an ACL array to a storable string
1704 if(! function_exists('perms2str')) {
1705 function perms2str($p) {
1708 if(is_array($tmp)) {
1709 array_walk($tmp,'sanitise_acl');
1710 $ret = implode('',$tmp);
1715 // generate a guaranteed unique (for this domain) item ID for ATOM
1716 // safe from birthday paradox
1718 if(! function_exists('item_new_uri')) {
1719 function item_new_uri($hostname,$uid) {
1723 $hash = random_string();
1725 $uri = "urn:X-dfrn:" . $hostname . ':' . $uid . ':' . $hash;
1727 $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
1731 } while($dups == true);
1735 // Generate a guaranteed unique photo ID.
1736 // safe from birthday paradox
1738 if(! function_exists('photo_new_resource')) {
1739 function photo_new_resource() {
1743 $resource = hash('md5',uniqid(mt_rand(),true));
1744 $r = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1",
1749 } while($found == true);
1754 // Take a URL from the wild, prepend http:// if necessary
1755 // and check DNS to see if it's real
1756 // return true if it's OK, false if something is wrong with it
1758 if(! function_exists('validate_url')) {
1759 function validate_url(&$url) {
1760 if(substr($url,0,4) != 'http')
1761 $url = 'http://' . $url;
1762 $h = @parse_url($url);
1764 if(($h) && (dns_get_record($h['host'], DNS_A + DNS_CNAME + DNS_PTR))) {
1770 // checks that email is an actual resolvable internet address
1772 if(! function_exists('validate_email')) {
1773 function validate_email($addr) {
1775 if(! strpos($addr,'@'))
1777 $h = substr($addr,strpos($addr,'@') + 1);
1779 if(($h) && (dns_get_record($h, DNS_A + DNS_CNAME + DNS_PTR + DNS_MX))) {
1785 // Check $url against our list of allowed sites,
1786 // wildcards allowed. If allowed_sites is unset return true;
1787 // If url is allowed, return true.
1788 // otherwise, return false
1790 if(! function_exists('allowed_url')) {
1791 function allowed_url($url) {
1793 $h = @parse_url($url);
1799 $str_allowed = get_config('system','allowed_sites');
1805 $host = strtolower($h['host']);
1807 // always allow our own site
1809 if($host == strtolower($_SERVER['SERVER_NAME']))
1812 $fnmatch = function_exists('fnmatch');
1813 $allowed = explode(',',$str_allowed);
1815 if(count($allowed)) {
1816 foreach($allowed as $a) {
1817 $pat = strtolower(trim($a));
1818 if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
1827 // check if email address is allowed to register here.
1828 // Compare against our list (wildcards allowed).
1829 // Returns false if not allowed, true if allowed or if
1830 // allowed list is not configured.
1832 if(! function_exists('allowed_email')) {
1833 function allowed_email($email) {
1836 $domain = strtolower(substr($email,strpos($email,'@') + 1));
1840 $str_allowed = get_config('system','allowed_email');
1846 $fnmatch = function_exists('fnmatch');
1847 $allowed = explode(',',$str_allowed);
1849 if(count($allowed)) {
1850 foreach($allowed as $a) {
1851 $pat = strtolower(trim($a));
1852 if(($fnmatch && fnmatch($pat,$domain)) || ($pat == $domain)) {
1863 // wrapper to load a view template, checking for alternate
1864 // languages before falling back to the default
1866 if(! function_exists('load_view_file')) {
1867 function load_view_file($s) {
1873 if(file_exists("$d/$lang/$b"))
1874 return file_get_contents("$d/$lang/$b");
1876 $theme = current_theme();
1878 if(file_exists("$d/theme/$theme/$b"))
1879 return file_get_contents("$d/theme/$theme/$b");
1881 return file_get_contents($s);
1884 // for html,xml parsing - let's say you've got
1885 // an attribute foobar="class1 class2 class3"
1886 // and you want to find out if it contains 'class3'.
1887 // you can't use a normal sub string search because you
1888 // might match 'notclass3' and a regex to do the job is
1889 // possible but a bit complicated.
1890 // pass the attribute string as $attr and the attribute you
1891 // are looking for as $s - returns true if found, otherwise false
1893 if(! function_exists('attribute_contains')) {
1894 function attribute_contains($attr,$s) {
1895 $a = explode(' ', $attr);
1896 if(count($a) && in_array($s,$a))
1901 if(! function_exists('logger')) {
1902 function logger($msg,$level = 0) {
1903 $debugging = get_config('system','debugging');
1904 $loglevel = intval(get_config('system','loglevel'));
1905 $logfile = get_config('system','logfile');
1907 if((! $debugging) || (! $logfile) || ($level > $loglevel))
1910 @file_put_contents($logfile, datetime_convert() . ':' . session_id() . ' ' . $msg . "\n", FILE_APPEND);
1915 if(! function_exists('activity_match')) {
1916 function activity_match($haystack,$needle) {
1917 if(($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle,NAMESPACE_ACTIVITY_SCHEMA)))
1923 // Pull out all #hashtags and @person tags from $s;
1924 // We also get @person@domain.com - which would make
1925 // the regex quite complicated as tags can also
1926 // end a sentence. So we'll run through our results
1927 // and strip the period from any tags which end with one.
1928 // Returns array of tags found, or empty array.
1931 if(! function_exists('get_tags')) {
1932 function get_tags($s) {
1935 // ignore anything in a code block
1937 $s = preg_replace('/\[code\](.*?)\[\/code\]/sm','',$s);
1939 if(preg_match_all('/([@#][^ \x0D\x0A,:?]+)([ \x0D\x0A,:?]|$)/',$s,$match)) {
1940 foreach($match[1] as $match) {
1941 if(strstr($match,"]")) {
1942 // we might be inside a bbcode color tag - leave it alone
1945 if(substr($match,-1,1) === '.')
1946 $ret[] = substr($match,0,-1);
1956 // quick and dirty quoted_printable encoding
1958 if(! function_exists('qp')) {
1960 return str_replace ("%","=",rawurlencode($s));
1965 if(! function_exists('get_mentions')) {
1966 function get_mentions($item) {
1968 if(! strlen($item['tag']))
1971 $arr = explode(',',$item['tag']);
1972 foreach($arr as $x) {
1974 if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
1975 $o .= "\t\t" . '<link rel="mentioned" href="' . $matches[1] . '" />' . "\r\n";
1976 $o .= "\t\t" . '<link rel="ostatus:attention" href="' . $matches[1] . '" />' . "\r\n";
1982 if(! function_exists('contact_block')) {
1983 function contact_block() {
1987 $shown = get_pconfig($a->profile['uid'],'system','display_friend_count');
1991 if((! is_array($a->profile)) || ($a->profile['hide-friends']))
1993 $r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0",
1994 intval($a->profile['uid'])
1997 $total = intval($r[0]['total']);
2000 $o .= '<h4 class="contact-h4">' . t('No contacts') . '</h4>';
2003 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0 ORDER BY RAND() LIMIT %d",
2004 intval($a->profile['uid']),
2008 $o .= '<h4 class="contact-h4">' . sprintf( tt('%d Contact','%d Contacts', $total),$total) . '</h4><div id="contact-block">';
2009 foreach($r as $rr) {
2010 $o .= micropro($rr,true,'mpfriend');
2012 $o .= '</div><div id="contact-block-end"></div>';
2013 $o .= '<div id="viewcontacts"><a id="viewcontacts-link" href="viewcontacts/' . $a->profile['nickname'] . '">' . t('View Contacts') . '</a></div>';
2017 $arr = array('contacts' => $r, 'output' => $o);
2019 call_hooks('contact_block_end', $arr);
2024 if(! function_exists('micropro')) {
2025 function micropro($contact, $redirect = false, $class = '') {
2028 $class = ' ' . $class;
2030 $url = $contact['url'];
2035 $redirect_url = $a->get_baseurl() . '/redir/' . $contact['id'];
2036 if(local_user() && ($contact['uid'] == local_user()) && ($contact['network'] === 'dfrn')) {
2037 $url = $redirect_url;
2038 $sparkle = ' sparkle';
2041 $click = ((x($contact,'click')) ? ' onclick="' . $contact['click'] . '" ' : '');
2044 return '<div class="contact-block-div' . $class . '"><a class="contact-block-link' . $class . $sparkle
2045 . (($click) ? ' fakelink' : '') . '" '
2046 . (($url) ? ' href="' . $url . '"' : '') . $click . ' ><img class="contact-block-img' . $class . $sparkle . '" src="'
2047 . $contact['micro'] . '" title="' . $contact['name'] . ' [' . $contact['url'] . ']" alt="' . $contact['name']
2048 . '" /></a></div>' . "\r\n";
2053 if(! function_exists('search')) {
2054 function search($s) {
2056 $o = '<div id="search-box">';
2057 $o .= '<form action="' . $a->get_baseurl() . '/search' . '" method="get" >';
2058 $o .= '<input type="text" name="search" id="search-text" value="' . $s .'" />';
2059 $o .= '<input type="submit" name="submit" id="search-submit" value="' . t('Search') . '" />';
2060 $o .= '</form></div>';
2064 if(! function_exists('valid_email')) {
2065 function valid_email($x){
2066 if(preg_match('/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/',$x))
2072 if(! function_exists('gravatar_img')) {
2073 function gravatar_img($email) {
2075 $opt = 'identicon'; // psuedo-random geometric pattern if not found
2077 $hash = md5(trim(strtolower($email)));
2079 $url = 'http://www.gravatar.com/avatar/' . $hash . '.jpg'
2080 . '?s=' . $size . '&d=' . $opt . '&r=' . $rating;
2082 logger('gravatar: ' . $email . ' ' . $url);
2086 if(! function_exists('aes_decrypt')) {
2087 function aes_decrypt($val,$ky)
2089 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2090 for($a=0;$a<strlen($ky);$a++)
2091 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2092 $mode = MCRYPT_MODE_ECB;
2093 $enc = MCRYPT_RIJNDAEL_128;
2094 $dec = @mcrypt_decrypt($enc, $key, $val, $mode, @mcrypt_create_iv( @mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM ) );
2095 return rtrim($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));
2099 if(! function_exists('aes_encrypt')) {
2100 function aes_encrypt($val,$ky)
2102 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2103 for($a=0;$a<strlen($ky);$a++)
2104 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2105 $mode=MCRYPT_MODE_ECB;
2106 $enc=MCRYPT_RIJNDAEL_128;
2107 $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
2108 return mcrypt_encrypt($enc, $key, $val, $mode, mcrypt_create_iv( mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM));
2116 * Replace naked text hyperlink with HTML formatted hyperlink
2120 if(! function_exists('linkify')) {
2121 function linkify($s) {
2122 $s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%\$\!\+]*)/", ' <a href="$1" target="external-link">$1</a>', $s);
2132 * Replaces text emoticons with graphical images
2134 * @Parameter: string $s
2139 if(! function_exists('smilies')) {
2140 function smilies($s) {
2144 array( '<3', '</3', '<\\3', ':-)', ';-)', ':-(', ':(', ':-P', ':P', ':-"', ':-x', ':-X', ':-D', '8-|', '8-O'),
2146 '<img src="' . $a->get_baseurl() . '/images/smiley-heart.gif" alt="<3" />',
2147 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="</3" />',
2148 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="<\\3" />',
2149 '<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":-)" />',
2150 '<img src="' . $a->get_baseurl() . '/images/smiley-wink.gif" alt=";-)" />',
2151 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":-(" />',
2152 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":(" />',
2153 '<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":-P" />',
2154 '<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":P" />',
2155 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-\"" />',
2156 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-x" />',
2157 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-X" />',
2158 '<img src="' . $a->get_baseurl() . '/images/smiley-laughing.gif" alt=":-D" />',
2159 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-|" />',
2160 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-O" />'
2167 * Function : profile_load
2169 * @parameter string $nickname
2170 * @parameter int $profile
2172 * Summary: Loads a profile into the page sidebar.
2173 * The function requires a writeable copy of the main App structure, and the nickname
2174 * of a registered local account.
2176 * If the viewer is an authenticated remote viewer, the profile displayed is the
2177 * one that has been configured for his/her viewing in the Contact manager.
2178 * Passing a non-zero profile ID can also allow a preview of a selected profile
2181 * Profile information is placed in the App structure for later retrieval.
2182 * Honours the owner's chosen theme for display.
2186 if(! function_exists('profile_load')) {
2187 function profile_load(&$a, $nickname, $profile = 0) {
2189 $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
2190 intval($_SESSION['visitor_id']));
2192 $profile = $r[0]['profile-id'];
2198 $profile_int = intval($profile);
2199 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2200 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2201 WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d LIMIT 1",
2203 intval($profile_int)
2207 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2208 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2209 WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 LIMIT 1",
2214 if(($r === false) || (! count($r))) {
2215 notice( t('No profile') . EOL );
2220 $a->profile = $r[0];
2223 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
2224 $_SESSION['theme'] = $a->profile['theme'];
2226 if(! (x($a->page,'aside')))
2227 $a->page['aside'] = '';
2229 $a->page['aside'] .= profile_sidebar($a->profile);
2230 $a->page['aside'] .= contact_block();
2238 * Function: profile_sidebar
2240 * Formats a profile for display in the sidebar.
2241 * It is very difficult to templatise the HTML completely
2242 * because of all the conditional logic.
2244 * @parameter: array $profile
2246 * Returns HTML string stuitable for sidebar inclusion
2247 * Exceptions: Returns empty string if passed $profile is wrong type or not populated
2252 if(! function_exists('profile_sidebar')) {
2253 function profile_sidebar($profile) {
2259 if((! is_array($profile)) && (! count($profile)))
2262 call_hooks('profile_sidebar_enter', $profile);
2264 $fullname = '<div class="fn">' . $profile['name'] . '</div>';
2266 $pdesc = '<div class="title">' . $profile['pdesc'] . '</div>';
2270 $photo = '<div id="profile-photo-wrapper"><img class="photo" src="' . $profile['photo'] . '" alt="' . $profile['name'] . '" /></div>';
2272 // don't show connect link to yourself
2274 $connect = (($profile['uid'] != local_user()) ? '<li><a id="dfrn-request-link" href="dfrn_request/' . $profile['nickname'] . '">' . t('Connect') . '</a></li>' : '');
2276 // don't show connect link to authenticated visitors either
2278 if((remote_user()) && ($_SESSION['visitor_visiting'] == $profile['uid']))
2281 if((x($profile,'address') == 1)
2282 || (x($profile,'locality') == 1)
2283 || (x($profile,'region') == 1)
2284 || (x($profile,'postal-code') == 1)
2285 || (x($profile,'country-name') == 1))
2289 $location .= '<div class="location"><span class="location-label">' . t('Location:') . '</span> <div class="adr">';
2290 $location .= ((x($profile,'address') == 1) ? '<div class="street-address">' . $profile['address'] . '</div>' : '');
2291 $location .= (((x($profile,'locality') == 1) || (x($profile,'region') == 1) || (x($profile,'postal-code') == 1))
2292 ? '<span class="city-state-zip"><span class="locality">' . $profile['locality'] . '</span>'
2293 . ((x($profile['locality']) == 1) ? t(', ') : '')
2294 . '<span class="region">' . $profile['region'] . '</span>'
2295 . ' <span class="postal-code">' . $profile['postal-code'] . '</span></span>' : '');
2296 $location .= ((x($profile,'country-name') == 1) ? ' <span class="country-name">' . $profile['country-name'] . '</span>' : '');
2297 $location .= '</div></div><div class="profile-clear"></div>';
2301 $gender = ((x($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>' : '');
2303 $pubkey = ((x($profile,'pubkey') == 1) ? '<div class="key" style="display:none;">' . $profile['pubkey'] . '</div>' : '');
2305 $marital = ((x($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>' : '');
2307 $homepage = ((x($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>' : '');
2309 $tpl = load_view_file('view/profile_vcard.tpl');
2311 $o .= replace_macros($tpl, array(
2312 '$fullname' => $fullname,
2316 '$connect' => $connect,
2317 '$location' => $location,
2318 '$gender' => $gender,
2319 '$pubkey' => $pubkey,
2320 '$marital' => $marital,
2321 '$homepage' => $homepage
2325 $arr = array('profile' => $profile, 'entry' => $o);
2327 call_hooks('profile_sidebar', $arr);
2333 if(! function_exists('register_hook')) {
2334 function register_hook($hook,$file,$function) {
2336 $r = q("SELECT * FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2344 $r = q("INSERT INTO `hook` (`hook`, `file`, `function`) VALUES ( '%s', '%s', '%s' ) ",
2352 if(! function_exists('unregister_hook')) {
2353 function unregister_hook($hook,$file,$function) {
2355 $r = q("DELETE FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2364 if(! function_exists('load_hooks')) {
2365 function load_hooks() {
2367 $a->hooks = array();
2368 $r = q("SELECT * FROM `hook` WHERE 1");
2370 foreach($r as $rr) {
2371 $a->hooks[] = array($rr['hook'], $rr['file'], $rr['function']);
2377 if(! function_exists('call_hooks')) {
2378 function call_hooks($name, &$data = null) {
2381 if(count($a->hooks)) {
2382 foreach($a->hooks as $hook) {
2383 if($hook[HOOK_HOOK] === $name) {
2384 @include_once($hook[HOOK_FILE]);
2385 if(function_exists($hook[HOOK_FUNCTION])) {
2386 $func = $hook[HOOK_FUNCTION];
2395 if(! function_exists('day_translate')) {
2396 function day_translate($s) {
2397 $ret = str_replace(array('Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'),
2398 array( t('Monday'), t('Tuesday'), t('Wednesday'), t('Thursday'), t('Friday'), t('Saturday'), t('Sunday')),
2401 $ret = str_replace(array('January','February','March','April','May','June','July','August','September','October','November','December'),
2402 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')),
2408 if(! function_exists('get_birthdays')) {
2409 function get_birthdays() {
2417 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
2419 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
2420 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
2421 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
2422 ORDER BY `start` DESC ",
2423 intval(local_user()),
2424 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
2425 dbesc(datetime_convert('UTC','UTC','now'))
2428 if($r && count($r)) {
2431 if(strlen($rr['name']))
2434 $o .= '<div id="birthday-notice" class="birthday-notice fakelink" onclick=openClose(\'birthday-wrapper\'); >' . t('Birthday Reminders') . ' ' . '(' . $total . ')' . '</div>';
2435 $o .= '<div id="birthday-wrapper" style="display: none;" ><div id="birthday-title">' . t('Birthdays this week:') . '</div>';
2436 $o .= '<div id="birthday-adjust">' . t("\x28Adjusted for local time\x29") . '</div>';
2437 $o .= '<div id="birthday-title-end"></div>';
2439 foreach($r as $rr) {
2440 if(! strlen($rr['name']))
2442 $now = strtotime('now');
2443 $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
2445 $o .= '<div class="birthday-list" id="birthday-' . $rr['eid'] . '"><a class="sparkle" href="'
2446 . $a->get_baseurl() . '/redir/' . $rr['cid'] . '">' . $rr['name'] . '</a> '
2447 . day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $bd_format)) . (($today) ? ' ' . t('[today]') : '')
2451 $o .= '</div></div>';
2459 if(! function_exists('normalise_link')) {
2460 function normalise_link($url) {
2461 $ret = str_replace(array('https:','//www.'), array('http:','//'), $url);
2462 return(rtrim($ret,'/'));
2467 * Compare two URLs to see if they are the same, but ignore
2468 * slight but hopefully insignificant differences such as if one
2469 * is https and the other isn't, or if one is www.something and
2470 * the other isn't - and also ignore case differences.
2472 * Return true if the URLs match, otherwise false.
2476 if(! function_exists('link_compare')) {
2477 function link_compare($a,$b) {
2478 if(strcasecmp(normalise_link($a),normalise_link($b)) === 0)
2484 if(! function_exists('prepare_body')) {
2485 function prepare_body($item) {
2486 return prepare_text($item['body']);
2489 if(! function_exists('prepare_text')) {
2490 function prepare_text($text) {
2492 require_once('include/bbcode.php');
2494 $s = smilies(bbcode($text));
2501 * Wrap calls to proc_close(proc_open()) and call hook
2502 * so plugins can take part in process :)
2505 * $cmd program to run
2506 * next args are passed as $cmd command line
2508 * e.g.: proc_run("ls","-la","/tmp");
2510 * $cmd and string args are surrounded with ""
2513 if(! function_exists('proc_run')) {
2514 function proc_run($cmd){
2518 $args = func_get_args();
2519 call_hooks("proc_run", $args);
2521 if(count($args) && $args[0] === 'php')
2522 $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
2524 foreach ($args as $arg){
2525 $arg = escapeshellarg($arg);
2527 $cmdline = implode($args," ");
2528 proc_close(proc_open($cmdline." &",array(),$foo));
2531 if(! function_exists('current_theme')) {
2532 function current_theme(){
2533 $app_base_themes = array('duepuntozero', 'loozah');
2537 $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
2538 $theme_name = ((is_array($_SESSION) && x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
2540 if($theme_name && file_exists('view/theme/' . $theme_name . '/style.css'))
2541 return($theme_name);
2543 foreach($app_base_themes as $t) {
2544 if(file_exists('view/theme/' . $t . '/style.css'))
2548 $fallback = glob('view/theme/*/style.css');
2549 if(count($fallback))
2550 return (str_replace('view/theme/','', str_replace("/style.css","",$fallback[0])));
2555 * Return full URL to theme which is currently in effect.
2556 * Provide a sane default if nothing is chosen or the specified theme does not exist.
2558 if(! function_exists('current_theme_url')) {
2559 function current_theme_url() {
2561 $t = current_theme();
2562 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
2565 if(! function_exists('feed_birthday')) {
2566 function feed_birthday($uid,$tz) {
2570 * Determine the next birthday, but only if the birthday is published
2571 * in the default profile. We _could_ also look for a private profile that the
2572 * recipient can see, but somebody could get mad at us if they start getting
2573 * public birthday greetings when they haven't made this info public.
2575 * Assuming we are able to publish this info, we are then going to convert
2576 * the start time from the owner's timezone to UTC.
2578 * This will potentially solve the problem found with some social networks
2579 * where birthdays are converted to the viewer's timezone and salutations from
2580 * elsewhere in the world show up on the wrong day. We will convert it to the
2581 * viewer's timezone also, but first we are going to convert it from the birthday
2582 * person's timezone to GMT - so the viewer may find the birthday starting at
2583 * 6:00PM the day before, but that will correspond to midnight to the birthday person.
2589 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
2593 if($p && count($p)) {
2594 $tmp_dob = substr($p[0]['dob'],5);
2595 if(intval($tmp_dob)) {
2596 $y = datetime_convert($tz,$tz,'now','Y');
2597 $bd = $y . '-' . $tmp_dob . ' 00:00';
2598 $t_dob = strtotime($bd);
2599 $now = strtotime(datetime_convert($tz,$tz,'now'));
2601 $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
2602 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
2610 * return atom link elements for all of our hubs
2613 if(! function_exists('feed_hublinks')) {
2614 function feed_hublinks() {
2616 $hub = get_config('system','huburl');
2620 $hubs = explode(',', $hub);
2622 foreach($hubs as $h) {
2626 $hubxml .= '<link rel="hub" href="' . xmlify($h) . '" />' . "\n" ;
2633 /* return atom link elements for salmon endpoints */
2635 if(! function_exists('feed_salmonlinks')) {
2636 function feed_salmonlinks($nick) {
2640 $salmon = '<link rel="salmon" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2642 // old style links that status.net still needed as of 12/2010
2644 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-replies" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2645 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-mention" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2649 if(! function_exists('get_plink')) {
2650 function get_plink($item) {
2652 $plink = (((x($item,'plink')) && (! $item['private'])) ? '<div class="wall-item-links-wrapper"><a href="'
2653 . $item['plink'] . '" title="' . t('link to source') . '" target="external-link" class="icon remote-link"></a></div>' : '');
2657 if(! function_exists('unamp')) {
2658 function unamp($s) {
2659 return str_replace('&', '&', $s);
2663 if(! function_exists('lang_selector')) {
2664 function lang_selector() {
2666 $o .= '<div id="language-selector" style="display: none;" >';
2667 $o .= '<form action="" method="post" ><select name="system_language" onchange="this.form.submit();" >';
2668 $langs = glob('view/*/strings.php');
2669 if(is_array($langs) && count($langs)) {
2670 if(! in_array('view/en/strings.php',$langs))
2671 $langs[] = 'view/en/';
2672 foreach($langs as $l) {
2674 $ll = substr($ll,0,strrpos($ll,'/'));
2675 $selected = (($ll === $lang) ? ' selected="selected" ' : '');
2676 $o .= '<option value="' . $ll . '"' . $selected . '>' . $ll . '</option>';
2679 $o .= '</select></form></div>';
2684 if(! function_exists('parse_xml_string')) {
2685 function parse_xml_string($s) {
2686 if(! strstr($s,'<?xml'))
2688 $s2 = substr($s,strpos($s,'<?xml'));
2689 libxml_use_internal_errors(true);
2690 $x = @simplexml_load_string($s2);
2691 if(count(libxml_get_errors()))
2692 foreach(libxml_get_errors() as $err)
2693 logger('libxml: parse: ' . $err->code." at ".$err->line.":".$err->column." : ".$err->message, LOGGER_DATA);
2694 libxml_clear_errors();