5 define ( 'FRIENDIKA_VERSION', '2.1.936' );
6 define ( 'DFRN_PROTOCOL_VERSION', '2.2' );
7 define ( 'DB_UPDATE_VERSION', 1046 );
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 * Maximum number of "people who like (or don't like) this" that we will list by name
80 define ( 'MAX_LIKERS', 75);
83 * email notification options
86 define ( 'NOTIFY_INTRO', 0x0001 );
87 define ( 'NOTIFY_CONFIRM', 0x0002 );
88 define ( 'NOTIFY_WALL', 0x0004 );
89 define ( 'NOTIFY_COMMENT', 0x0008 );
90 define ( 'NOTIFY_MAIL', 0x0010 );
93 * various namespaces we may need to parse
96 define ( 'NAMESPACE_DFRN' , 'http://purl.org/macgirvin/dfrn/1.0' );
97 define ( 'NAMESPACE_THREAD' , 'http://purl.org/syndication/thread/1.0' );
98 define ( 'NAMESPACE_TOMB' , 'http://purl.org/atompub/tombstones/1.0' );
99 define ( 'NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/' );
100 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
101 define ( 'NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia' );
102 define ( 'NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env' );
103 define ( 'NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe' );
104 define ( 'NAMESPACE_GEORSS', 'http://www.georss.org/georss' );
105 define ( 'NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0' );
106 define ( 'NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from' );
109 * activity stream defines
112 define ( 'ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like' );
113 define ( 'ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike' );
114 define ( 'ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart' );
116 define ( 'ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
117 define ( 'ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
118 define ( 'ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
119 define ( 'ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post' );
120 define ( 'ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update' );
121 define ( 'ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
123 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
124 define ( 'ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note' );
125 define ( 'ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person' );
126 define ( 'ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
127 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
128 define ( 'ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
131 * item weight for query ordering
134 define ( 'GRAVITY_PARENT', 0);
135 define ( 'GRAVITY_LIKE', 3);
136 define ( 'GRAVITY_COMMENT', 6);
140 * Reverse the effect of magic_quotes_gpc if it is enabled.
141 * Please disable magic_quotes_gpc so we don't have to do this.
142 * See http://php.net/manual/en/security.magicquotes.disabling.php
146 if (get_magic_quotes_gpc()) {
147 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
148 while (list($key, $val) = each($process)) {
149 foreach ($val as $k => $v) {
150 unset($process[$key][$k]);
152 $process[$key][stripslashes($k)] = $v;
153 $process[] = &$process[$key][stripslashes($k)];
155 $process[$key][stripslashes($k)] = stripslashes($v);
165 require_once("include/pgettext.php");
172 * Our main application structure for the life of this page
173 * Primarily deals with the URL that got us here
174 * and tries to make some sense of it, and
175 * stores our page contents and config storage
176 * and anything else that might need to be passed around
177 * before we spit the page out.
181 if(! class_exists('App')) {
184 public $module_loaded = false;
185 public $query_string;
194 public $error = false;
204 public $interactive = true;
215 private $curl_headers;
217 function __construct() {
219 $this->config = array();
220 $this->page = array();
221 $this->pager= array();
223 $this->query_string = '';
225 $this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'])) ? 'https' : 'http' );
227 if(x($_SERVER,'SERVER_NAME')) {
228 $this->hostname = $_SERVER['SERVER_NAME'];
231 * Figure out if we are running at the top of a domain
232 * or in a sub-directory and adjust accordingly
235 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
236 if(isset($path) && strlen($path) && ($path != $this->path))
240 set_include_path("include/$this->hostname" . PATH_SEPARATOR . 'include' . PATH_SEPARATOR . '.' );
242 if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=")
243 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
245 $this->cmd = trim($_GET['q'],'/\\');
251 * Break the URL path into C style argc/argv style arguments for our
252 * modules. Given "http://example.com/module/arg1/arg2", $this->argc
253 * will be 3 (integer) and $this->argv will contain:
259 * There will always be one argument. If provided a naked domain
260 * URL, $this->argv[0] is set to "home".
264 $this->argv = explode('/',$this->cmd);
265 $this->argc = count($this->argv);
266 if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
267 $this->module = $this->argv[0];
270 $this->module = 'home';
274 * Special handling for the webfinger/lrdd host XRD file
275 * Just spit out the contents and exit.
278 if($this->cmd === '.well-known/host-meta') {
279 require_once('include/hostxrd.php');
280 hostxrd($this->hostname);
285 * See if there is any page number information, and initialise
289 $this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1);
290 $this->pager['itemspage'] = 50;
291 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
292 $this->pager['total'] = 0;
295 function get_baseurl($ssl = false) {
297 $scheme = $this->scheme;
299 if(x($this->config,'ssl_policy')) {
300 if(($ssl) || ($this->config['ssl_policy'] == SSL_POLICY_FULL))
302 if(($this->config['ssl_policy'] == SSL_POLICY_SELFSIGN) && (local_user() || x($_POST,'auth-params')))
306 $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
307 return $this->baseurl;
310 function set_baseurl($url) {
311 $parsed = @parse_url($url);
313 $this->baseurl = $url;
316 $this->scheme = $parsed['scheme'];
318 $this->hostname = $parsed['host'];
319 if(x($parsed,'port'))
320 $this->hostname .= ':' . $parsed['port'];
321 if(x($parsed,'path'))
322 $this->path = trim($parsed['path'],'\\/');
327 function get_hostname() {
328 return $this->hostname;
331 function set_hostname($h) {
332 $this->hostname = $h;
335 function set_path($p) {
336 $this->path = trim(trim($p),'/');
339 function get_path() {
343 function set_pager_total($n) {
344 $this->pager['total'] = intval($n);
347 function set_pager_itemspage($n) {
348 $this->pager['itemspage'] = intval($n);
349 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
353 function init_pagehead() {
354 $this->page['title'] = $this->config['sitename'];
355 $tpl = load_view_file('view/head.tpl');
356 $this->page['htmlhead'] = replace_macros($tpl,array(
357 '$baseurl' => $this->get_baseurl() . '/',
358 '$generator' => 'Friendika' . ' ' . FRIENDIKA_VERSION,
359 '$delitem' => t('Delete this item?'),
360 '$comment' => t('Comment')
364 function set_curl_code($code) {
365 $this->curl_code = $code;
368 function get_curl_code() {
369 return $this->curl_code;
372 function set_curl_headers($headers) {
373 $this->curl_headers = $headers;
376 function get_curl_headers() {
377 return $this->curl_headers;
383 // retrieve the App structure
384 // useful in functions which require it but don't get it passed to them
386 if(! function_exists('get_app')) {
393 // Multi-purpose function to check variable state.
394 // Usage: x($var) or $x($array,'key')
395 // returns false if variable/key is not set
396 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
397 // e.g. x('') or x(0) returns 0;
399 if(! function_exists('x')) {
400 function x($s,$k = NULL) {
402 if((is_array($s)) && (array_key_exists($k,$s))) {
420 // called from db initialisation if db is dead.
422 if(! function_exists('system_unavailable')) {
423 function system_unavailable() {
424 include('system_unavailable.php');
429 // Primarily involved with database upgrade, but also sets the
430 // base url for use in cmdline programs which don't have
431 // $_SERVER variables, and synchronising the state of installed plugins.
434 if(! function_exists('check_config')) {
435 function check_config(&$a) {
438 load_config('system');
440 if(! x($_SERVER,'SERVER_NAME'))
443 $build = get_config('system','build');
445 $build = set_config('system','build',DB_UPDATE_VERSION);
447 $url = get_config('system','url');
449 $url = set_config('system','url',$a->get_baseurl());
451 if($build != DB_UPDATE_VERSION) {
452 $stored = intval($build);
453 $current = intval(DB_UPDATE_VERSION);
454 if(($stored < $current) && file_exists('update.php')) {
455 // We're reporting a different version than what is currently installed.
456 // Run any existing update scripts to bring the database up to current.
458 require_once('update.php');
459 for($x = $stored; $x < $current; $x ++) {
460 if(function_exists('update_' . $x)) {
461 $func = 'update_' . $x;
465 set_config('system','build', DB_UPDATE_VERSION);
471 * Synchronise plugins:
473 * $a->config['system']['addon'] contains a comma-separated list of names
474 * of plugins/addons which are used on this system.
475 * Go through the database list of already installed addons, and if we have
476 * an entry, but it isn't in the config list, call the uninstall procedure
477 * and mark it uninstalled in the database (for now we'll remove it).
478 * Then go through the config list and if we have a plugin that isn't installed,
479 * call the install procedure and add it to the database.
483 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
487 $installed = array();
489 $plugins = get_config('system','addon');
490 $plugins_arr = array();
493 $plugins_arr = explode(',',str_replace(' ', '',$plugins));
495 $a->plugins = $plugins_arr;
497 $installed_arr = array();
499 if(count($installed)) {
500 foreach($installed as $i) {
501 if(! in_array($i['name'],$plugins_arr)) {
502 logger("Addons: uninstalling " . $i['name']);
503 q("DELETE FROM `addon` WHERE `id` = %d LIMIT 1",
507 @include_once('addon/' . $i['name'] . '/' . $i['name'] . '.php');
508 if(function_exists($i['name'] . '_uninstall')) {
509 $func = $i['name'] . '_uninstall';
514 $installed_arr[] = $i['name'];
518 if(count($plugins_arr)) {
519 foreach($plugins_arr as $p) {
520 if(! in_array($p,$installed_arr)) {
521 logger("Addons: installing " . $p);
522 $t = filemtime('addon/' . $p . '/' . $p . '.php');
523 @include_once('addon/' . $p . '/' . $p . '.php');
524 if(function_exists($p . '_install')) {
525 $func = $p . '_install';
527 $r = q("INSERT INTO `addon` (`name`, `installed`, `timestamp`) VALUES ( '%s', 1, %d ) ",
542 // reload all updated plugins
544 if(! function_exists('reload_plugins')) {
545 function reload_plugins() {
546 $plugins = get_config('system','addon');
547 if(strlen($plugins)) {
549 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
553 $installed = array();
555 $parr = explode(',',$plugins);
557 foreach($parr as $pl) {
560 $t = filemtime('addon/' . $pl . '/' . $pl . '.php');
561 foreach($installed as $i) {
562 if(($i['name'] == $pl) && ($i['timestamp'] != $t)) {
563 logger('Reloading plugin: ' . $i['name']);
564 @include_once('addon/' . $pl . '/' . $pl . '.php');
566 if(function_exists($pl . '_uninstall')) {
567 $func = $pl . '_uninstall';
570 if(function_exists($pl . '_install')) {
571 $func = $pl . '_install';
574 q("UPDATE `addon` SET `timestamp` = %d WHERE `id` = %d LIMIT 1",
587 // This is our template processor.
588 // $s is the string requiring macro substitution.
589 // $r is an array of key value pairs (search => replace)
590 // returns substituted string.
591 // WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other.
592 // For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing,
593 // depending on the order in which they were declared in the array.
595 if(! function_exists('replace_macros')) {
596 function replace_macros($s,$r) {
601 if(is_array($r) && count($r)) {
602 foreach ($r as $k => $v ) {
607 return str_replace($search,$replace,$s);
611 // curl wrapper. If binary flag is true, return binary
614 if(! function_exists('fetch_url')) {
615 function fetch_url($url,$binary = false, &$redirects = 0) {
619 $ch = curl_init($url);
620 if(($redirects > 8) || (! $ch))
623 curl_setopt($ch, CURLOPT_HEADER, true);
624 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
627 $curl_time = intval(get_config('system','curl_timeout'));
628 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
630 // by default we will allow self-signed certs
631 // but you can override this
633 $check_cert = get_config('system','verifyssl');
634 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
636 $prx = get_config('system','proxy');
638 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
639 curl_setopt($ch, CURLOPT_PROXY, $prx);
640 $prxusr = get_config('system','proxyuser');
642 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
645 curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
647 $a->set_curl_code(0);
649 // don't let curl abort the entire application
650 // if it throws any errors.
652 $s = @curl_exec($ch);
654 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
655 $header = substr($s,0,strpos($s,"\r\n\r\n"));
656 if(stristr($header,'100') && (strlen($header) < 30)) {
657 // 100 Continue has two headers, get the real one
658 $s = substr($s,strlen($header)+4);
659 $header = substr($s,0,strpos($s,"\r\n\r\n"));
661 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
663 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
664 $url = trim(array_pop($matches));
665 $url_parsed = @parse_url($url);
666 if (isset($url_parsed)) {
668 return fetch_url($url,$binary,$redirects);
671 $a->set_curl_code($http_code);
673 $body = substr($s,strlen($header)+4);
675 /* one more try to make sure there are no more headers */
677 if(strpos($body,'HTTP/') === 0) {
678 $header = substr($body,0,strpos($body,"\r\n\r\n"));
679 $body = substr($body,strlen($header)+4);
682 $a->set_curl_headers($header);
688 // post request to $url. $params is an array of post variables.
690 if(! function_exists('post_url')) {
691 function post_url($url,$params, $headers = null, &$redirects = 0) {
693 $ch = curl_init($url);
694 if(($redirects > 8) || (! $ch))
697 curl_setopt($ch, CURLOPT_HEADER, true);
698 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
699 curl_setopt($ch, CURLOPT_POST,1);
700 curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
702 $curl_time = intval(get_config('system','curl_timeout'));
703 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
705 if(is_array($headers))
706 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
708 $check_cert = get_config('system','verifyssl');
709 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
710 $prx = get_config('system','proxy');
712 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
713 curl_setopt($ch, CURLOPT_PROXY, $prx);
714 $prxusr = get_config('system','proxyuser');
716 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
719 $a->set_curl_code(0);
721 // don't let curl abort the entire application
722 // if it throws any errors.
724 $s = @curl_exec($ch);
726 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
727 $header = substr($s,0,strpos($s,"\r\n\r\n"));
728 if(stristr($header,'100') && (strlen($header) < 30)) {
729 // 100 Continue has two headers, get the real one
730 $s = substr($s,strlen($header)+4);
731 $header = substr($s,0,strpos($s,"\r\n\r\n"));
733 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
735 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
736 $url = trim(array_pop($matches));
737 $url_parsed = @parse_url($url);
738 if (isset($url_parsed)) {
740 return post_url($url,$binary,$headers,$redirects);
743 $a->set_curl_code($http_code);
744 $body = substr($s,strlen($header)+4);
746 /* one more try to make sure there are no more headers */
748 if(strpos($body,'HTTP/') === 0) {
749 $header = substr($body,0,strpos($body,"\r\n\r\n"));
750 $body = substr($body,strlen($header)+4);
753 $a->set_curl_headers($header);
759 // random hash, 64 chars
761 if(! function_exists('random_string')) {
762 function random_string() {
763 return(hash('sha256',uniqid(rand(),true)));
767 * This is our primary input filter.
769 * The high bit hack only involved some old IE browser, forget which (IE5/Mac?)
770 * that had an XSS attack vector due to stripping the high-bit on an 8-bit character
771 * after cleansing, and angle chars with the high bit set could get through as markup.
773 * This is now disabled because it was interfering with some legitimate unicode sequences
774 * and hopefully there aren't a lot of those browsers left.
776 * Use this on any text input where angle chars are not valid or permitted
777 * They will be replaced with safer brackets. This may be filtered further
778 * if these are not allowed either.
782 if(! function_exists('notags')) {
783 function notags($string) {
785 return(str_replace(array("<",">"), array('[',']'), $string));
787 // High-bit filter no longer used
788 // return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string));
791 // use this on "body" or "content" input where angle chars shouldn't be removed,
792 // and allow them to be safely displayed.
794 if(! function_exists('escape_tags')) {
795 function escape_tags($string) {
797 return(htmlspecialchars($string));
800 // wrapper for adding a login box. If $register == true provide a registration
801 // link. This will most always depend on the value of $a->config['register_policy'].
802 // returns the complete html for inserting into the page
804 if(! function_exists('login')) {
805 function login($register = false) {
807 $register_tpl = (($register) ? load_view_file("view/register-link.tpl") : "");
809 $register_html = replace_macros($register_tpl,array(
810 '$title' => t('Create a New Account'),
811 '$desc' => t('Register')
814 $noid = get_config('system','no_openid');
816 $classname = 'no-openid';
817 $namelabel = t('Nickname or Email address: ');
818 $passlabel = t('Password: ');
822 $classname = 'openid';
823 $namelabel = t('Nickname/Email/OpenID: ');
824 $passlabel = t("Password \x28if not OpenID\x29: ");
827 $lostpass = t('Forgot your password?');
828 $lostlink = t('Password Reset');
831 $tpl = load_view_file("view/logout.tpl");
834 $tpl = load_view_file("view/login.tpl");
838 $o = replace_macros($tpl,array(
839 '$logout' => t('Logout'),
840 '$register_html' => $register_html,
841 '$classname' => $classname,
842 '$namelabel' => $namelabel,
843 '$passlabel' => $passlabel,
845 '$lostpass' => $lostpass,
846 '$lostlink' => $lostlink
852 // generate a string that's random, but usually pronounceable.
853 // used to generate initial passwords
855 if(! function_exists('autoname')) {
856 function autoname($len) {
858 $vowels = array('a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u');
859 if(mt_rand(0,5) == 4)
877 's','sc','sh','sm','sp','st',
885 $midcons = array('ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
886 'nd','ng','nk','nt','rn','rp','rt');
888 $noend = array('bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
889 'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh');
891 $start = mt_rand(0,2);
899 for ($x = 0; $x < $len; $x ++) {
900 $r = mt_rand(0,count($table) - 1);
903 if($table == $vowels)
904 $table = array_merge($cons,$midcons);
910 $word = substr($word,0,$len);
912 foreach($noend as $noe) {
913 if((strlen($word) > 2) && (substr($word,-2) == $noe)) {
914 $word = substr($word,0,-1);
918 if(substr($word,-1) == 'q')
919 $word = substr($word,0,-1);
923 // Used to end the current process, after saving session state.
925 if(! function_exists('killme')) {
927 session_write_close();
931 // redirect to another URL and terminate this process.
933 if(! function_exists('goaway')) {
934 function goaway($s) {
935 header("Location: $s");
939 // Generic XML return
940 // Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
941 // of $st and an optional text <message> of $message and terminates the current process.
943 if(! function_exists('xml_status')) {
944 function xml_status($st, $message = '') {
946 $xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
949 logger('xml_status returning non_zero: ' . $st . " message=" . $message);
951 header( "Content-type: text/xml" );
952 echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
953 echo "<result>\r\n\t<status>$st</status>\r\n$xml_message</result>\r\n";
957 // Returns the uid of locally logged in user or false.
959 if(! function_exists('local_user')) {
960 function local_user() {
961 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
962 return intval($_SESSION['uid']);
966 // Returns contact id of authenticated site visitor or false
968 if(! function_exists('remote_user')) {
969 function remote_user() {
970 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
971 return intval($_SESSION['visitor_id']);
975 // contents of $s are displayed prominently on the page the next time
976 // a page is loaded. Usually used for errors or alerts.
978 if(! function_exists('notice')) {
979 function notice($s) {
982 $_SESSION['sysmsg'] .= $s;
985 // wrapper around config to limit the text length of an incoming message
987 if(! function_exists('get_max_import_size')) {
988 function get_max_import_size() {
990 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
994 // escape text ($str) for XML transport
995 // returns escaped text.
997 if(! function_exists('xmlify')) {
998 function xmlify($str) {
1001 for($x = 0; $x < strlen($str); $x ++) {
1012 $buffer .= ''';
1015 $buffer .= '"';
1031 $buffer = trim($buffer);
1036 // pass xml escaped text ($s), returns unescaped text
1038 if(! function_exists('unxmlify')) {
1039 function unxmlify($s) {
1040 $ret = str_replace('&','&', $s);
1041 $ret = str_replace(array('<','>','"','''),array('<','>','"',"'"),$ret);
1045 // convenience wrapper, reverse the operation "bin2hex"
1047 if(! function_exists('hex2bin')) {
1048 function hex2bin($s) {
1049 if(! ctype_xdigit($s)) {
1050 logger('hex2bin: illegal input: ' . print_r(debug_backtrace(), true));
1054 return(pack("H*",$s));
1057 // Automatic pagination.
1058 // To use, get the count of total items.
1059 // Then call $a->set_pager_total($number_items);
1060 // Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page
1061 // Then call paginate($a) after the end of the display loop to insert the pager block on the page
1062 // (assuming there are enough items to paginate).
1063 // When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage']
1064 // will limit the results to the correct items for the current page.
1065 // The actual page handling is then accomplished at the application layer.
1067 if(! function_exists('paginate')) {
1068 function paginate(&$a) {
1070 $stripped = preg_replace('/(&page=[0-9]*)/','',$a->query_string);
1071 $stripped = str_replace('q=','',$stripped);
1072 $stripped = trim($stripped,'/');
1073 $pagenum = $a->pager['page'];
1074 $url = $a->get_baseurl() . '/' . $stripped;
1077 if($a->pager['total'] > $a->pager['itemspage']) {
1078 $o .= '<div class="pager">';
1079 if($a->pager['page'] != 1)
1080 $o .= '<span class="pager_prev">'."<a href=\"$url".'&page='.($a->pager['page'] - 1).'">' . t('prev') . '</a></span> ';
1082 $o .= "<span class=\"pager_first\"><a href=\"$url"."&page=1\">" . t('first') . "</a></span> ";
1084 $numpages = $a->pager['total'] / $a->pager['itemspage'];
1087 $numstop = $numpages;
1089 if($numpages > 14) {
1090 $numstart = (($pagenum > 7) ? ($pagenum - 7) : 1);
1091 $numstop = (($pagenum > ($numpages - 7)) ? $numpages : ($numstart + 14));
1094 for($i = $numstart; $i <= $numstop; $i++){
1095 if($i == $a->pager['page'])
1096 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1098 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1102 if(($a->pager['total'] % $a->pager['itemspage']) != 0) {
1103 if($i == $a->pager['page'])
1104 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1106 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1110 $lastpage = (($numpages > intval($numpages)) ? intval($numpages)+1 : $numpages);
1111 $o .= "<span class=\"pager_last\"><a href=\"$url"."&page=$lastpage\">" . t('last') . "</a></span> ";
1113 if(($a->pager['total'] - ($a->pager['itemspage'] * $a->pager['page'])) > 0)
1114 $o .= '<span class="pager_next">'."<a href=\"$url"."&page=".($a->pager['page'] + 1).'">' . t('next') . '</a></span>';
1115 $o .= '</div>'."\r\n";
1120 // Turn user/group ACLs stored as angle bracketed text into arrays
1122 if(! function_exists('expand_acl')) {
1123 function expand_acl($s) {
1124 // turn string array of angle-bracketed elements into numeric array
1125 // e.g. "<1><2><3>" => array(1,2,3);
1129 $t = str_replace('<','',$s);
1130 $a = explode('>',$t);
1131 foreach($a as $aa) {
1133 $ret[] = intval($aa);
1139 // Used to wrap ACL elements in angle brackets for storage
1141 if(! function_exists('sanitise_acl')) {
1142 function sanitise_acl(&$item) {
1144 $item = '<' . intval(notags(trim($item))) . '>';
1149 // retrieve a "family" of config variables from database to cached storage
1151 if(! function_exists('load_config')) {
1152 function load_config($family) {
1154 $r = q("SELECT * FROM `config` WHERE `cat` = '%s'",
1158 foreach($r as $rr) {
1160 $a->config[$family][$k] = $rr['v'];
1165 // get a particular config variable given the family name
1166 // and key. Returns false if not set.
1167 // $instore is only used by the set_config function
1168 // to determine if the key already exists in the DB
1169 // If a key is found in the DB but doesn't exist in
1170 // local config cache, pull it into the cache so we don't have
1171 // to hit the DB again for this item.
1173 if(! function_exists('get_config')) {
1174 function get_config($family, $key, $instore = false) {
1179 if(isset($a->config[$family][$key])) {
1180 if($a->config[$family][$key] === '!<unset>!') {
1183 return $a->config[$family][$key];
1186 $ret = q("SELECT `v` FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1191 $a->config[$family][$key] = $ret[0]['v'];
1192 return $ret[0]['v'];
1195 $a->config[$family][$key] = '!<unset>!';
1200 // Store a config value ($value) in the category ($family)
1201 // under the key ($key)
1202 // Return the value, or false if the database update failed
1204 if(! function_exists('set_config')) {
1205 function set_config($family,$key,$value) {
1209 if(get_config($family,$key,true) === false) {
1210 $ret = q("INSERT INTO `config` ( `cat`, `k`, `v` ) VALUES ( '%s', '%s', '%s' ) ",
1219 $ret = q("UPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1225 $a->config[$family][$key] = $value;
1233 if(! function_exists('load_pconfig')) {
1234 function load_pconfig($uid,$family) {
1236 $r = q("SELECT * FROM `pconfig` WHERE `cat` = '%s' AND `uid` = %d",
1241 foreach($r as $rr) {
1243 $a->config[$uid][$family][$k] = $rr['v'];
1250 if(! function_exists('get_pconfig')) {
1251 function get_pconfig($uid,$family, $key, $instore = false) {
1256 if(isset($a->config[$uid][$family][$key])) {
1257 if($a->config[$uid][$family][$key] === '!<unset>!') {
1260 return $a->config[$uid][$family][$key];
1264 $ret = q("SELECT `v` FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1271 $a->config[$uid][$family][$key] = $ret[0]['v'];
1272 return $ret[0]['v'];
1275 $a->config[$uid][$family][$key] = '!<unset>!';
1280 if(! function_exists('del_config')) {
1281 function del_config($family,$key) {
1284 if(x($a->config[$family],$key))
1285 unset($a->config[$family][$key]);
1286 $ret = q("DELETE FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1295 // Same as above functions except these are for personal config storage and take an
1296 // additional $uid argument.
1298 if(! function_exists('set_pconfig')) {
1299 function set_pconfig($uid,$family,$key,$value) {
1303 if(get_pconfig($uid,$family,$key,true) === false) {
1304 $ret = q("INSERT INTO `pconfig` ( `uid`, `cat`, `k`, `v` ) VALUES ( %d, '%s', '%s', '%s' ) ",
1314 $ret = q("UPDATE `pconfig` SET `v` = '%s' WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1321 $a->config[$uid][$family][$key] = $value;
1328 if(! function_exists('del_pconfig')) {
1329 function del_pconfig($uid,$family,$key) {
1332 if(x($a->config[$uid][$family],$key))
1333 unset($a->config[$uid][$family][$key]);
1334 $ret = q("DELETE FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1343 // convert an XML document to a normalised, case-corrected array
1344 // used by webfinger
1346 if(! function_exists('convert_xml_element_to_array')) {
1347 function convert_xml_element_to_array($xml_element, &$recursion_depth=0) {
1349 // If we're getting too deep, bail out
1350 if ($recursion_depth > 512) {
1354 if (!is_string($xml_element) &&
1355 !is_array($xml_element) &&
1356 (get_class($xml_element) == 'SimpleXMLElement')) {
1357 $xml_element_copy = $xml_element;
1358 $xml_element = get_object_vars($xml_element);
1361 if (is_array($xml_element)) {
1362 $result_array = array();
1363 if (count($xml_element) <= 0) {
1364 return (trim(strval($xml_element_copy)));
1367 foreach($xml_element as $key=>$value) {
1370 $result_array[strtolower($key)] =
1371 convert_xml_element_to_array($value, $recursion_depth);
1374 if ($recursion_depth == 0) {
1375 $temp_array = $result_array;
1376 $result_array = array(
1377 strtolower($xml_element_copy->getName()) => $temp_array,
1381 return ($result_array);
1384 return (trim(strval($xml_element)));
1388 // Given an email style address, perform webfinger lookup and
1389 // return the resulting DFRN profile URL, or if no DFRN profile URL
1390 // is located, returns an OStatus subscription template (prefixed
1391 // with the string 'stat:' to identify it as on OStatus template).
1392 // If this isn't an email style address just return $s.
1393 // Return an empty string if email-style addresses but webfinger fails,
1394 // or if the resultant personal XRD doesn't contain a supported
1395 // subscription/friend-request attribute.
1397 if(! function_exists('webfinger_dfrn')) {
1398 function webfinger_dfrn($s) {
1399 if(! strstr($s,'@')) {
1402 $links = webfinger($s);
1403 logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA);
1405 foreach($links as $link)
1406 if($link['@attributes']['rel'] === NAMESPACE_DFRN)
1407 return $link['@attributes']['href'];
1408 foreach($links as $link)
1409 if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB)
1410 return 'stat:' . $link['@attributes']['template'];
1415 // Given an email style address, perform webfinger lookup and
1416 // return the array of link attributes from the personal XRD file.
1417 // On error/failure return an empty array.
1420 if(! function_exists('webfinger')) {
1421 function webfinger($s) {
1423 if(strstr($s,'@')) {
1424 $host = substr($s,strpos($s,'@') + 1);
1427 $tpl = fetch_lrdd_template($host);
1428 logger('webfinger: lrdd template: ' . $tpl);
1430 $pxrd = str_replace('{uri}', urlencode('acct:' . $s), $tpl);
1431 logger('webfinger: pxrd: ' . $pxrd);
1432 $links = fetch_xrd_links($pxrd);
1433 if(! count($links)) {
1434 // try with double slashes
1435 $pxrd = str_replace('{uri}', urlencode('acct://' . $s), $tpl);
1436 logger('webfinger: pxrd: ' . $pxrd);
1437 $links = fetch_xrd_links($pxrd);
1445 if(! function_exists('lrdd')) {
1446 function lrdd($uri) {
1450 // default priority is host priority, host-meta first
1454 // All we have is an email address. Resource-priority is irrelevant
1455 // because our URI isn't directly resolvable.
1457 if(strstr($uri,'@')) {
1458 return(webfinger($uri));
1461 // get the host meta file
1463 $host = @parse_url($uri);
1466 $url = ((x($host,'scheme')) ? $host['scheme'] : 'http') . '://';
1467 $url .= $host['host'] . '/.well-known/host-meta' ;
1472 logger('lrdd: constructed url: ' . $url);
1474 $xml = fetch_url($url);
1475 $headers = $a->get_curl_headers();
1480 logger('lrdd: host_meta: ' . $xml, LOGGER_DATA);
1481 $h = simplexml_load_string($xml);
1482 $arr = convert_xml_element_to_array($h);
1484 if(isset($arr['xrd']['property'])) {
1485 $property = $arr['crd']['property'];
1486 if(! isset($property[0]))
1487 $properties = array($property);
1489 $properties = $property;
1490 foreach($properties as $prop)
1491 if((string) $prop['@attributes'] === 'http://lrdd.net/priority/resource')
1492 $priority = 'resource';
1495 // save the links in case we need them
1499 if(isset($arr['xrd']['link'])) {
1500 $link = $arr['xrd']['link'];
1501 if(! isset($link[0]))
1502 $links = array($link);
1507 // do we have a template or href?
1510 foreach($links as $link) {
1511 if($link['@attributes']['rel'] && attribute_contains($link['@attributes']['rel'],'lrdd')) {
1512 if(x($link['@attributes'],'template'))
1513 $tpl = $link['@attributes']['template'];
1514 elseif(x($link['@attributes'],'href'))
1515 $href = $link['@attributes']['href'];
1520 if((! isset($tpl)) || (! strpos($tpl,'{uri}')))
1523 if($priority === 'host') {
1525 $pxrd = str_replace('{uri}', urlencode($uri), $tpl);
1526 elseif(isset($href))
1529 logger('lrdd: (host priority) pxrd: ' . $pxrd);
1530 $links = fetch_xrd_links($pxrd);
1534 $lines = explode("\n",$headers);
1536 foreach($lines as $line) {
1537 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1538 return(fetch_xrd_links($matches[1]));
1546 // priority 'resource'
1549 $html = fetch_url($uri);
1550 $headers = $a->get_curl_headers();
1551 logger('lrdd: headers=' . $headers, LOGGER_DEBUG);
1553 require_once('library/HTML5/Parser.php');
1554 $dom = @HTML5_Parser::parse($html);
1557 $items = $dom->getElementsByTagName('link');
1558 foreach($items as $item) {
1559 $x = $item->getAttribute('rel');
1561 $pagelink = $item->getAttribute('href');
1567 if(isset($pagelink))
1568 return(fetch_xrd_links($pagelink));
1570 // next look in HTTP headers
1572 $lines = explode("\n",$headers);
1574 foreach($lines as $line) {
1575 // TODO alter the following regex to support multiple relations (space separated)
1576 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1577 $pagelink = $matches[1];
1580 // don't try and run feeds through the html5 parser
1581 if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml'))))
1583 if(stristr($html,'<rss') || stristr($html,'<feed'))
1588 if(isset($pagelink))
1589 return(fetch_xrd_links($pagelink));
1591 // If we haven't found any links, return the host xrd links (which we have already fetched)
1602 // Given a host name, locate the LRDD template from that
1603 // host. Returns the LRDD template or an empty string on
1606 if(! function_exists('fetch_lrdd_template')) {
1607 function fetch_lrdd_template($host) {
1610 $url1 = 'https://' . $host . '/.well-known/host-meta' ;
1611 $url2 = 'http://' . $host . '/.well-known/host-meta' ;
1612 $links = fetch_xrd_links($url1);
1613 logger('template (https): ' . print_r($links,true));
1614 if(! count($links)) {
1615 $links = fetch_xrd_links($url2);
1616 logger('template (http): ' . print_r($links,true));
1619 foreach($links as $link)
1620 if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd')
1621 $tpl = $link['@attributes']['template'];
1623 if(! strpos($tpl,'{uri}'))
1628 // Given a URL, retrieve the page as an XRD document.
1629 // Return an array of links.
1630 // on error/failure return empty array.
1632 if(! function_exists('fetch_xrd_links')) {
1633 function fetch_xrd_links($url) {
1636 $xml = fetch_url($url);
1640 logger('fetch_xrd_links: ' . $xml, LOGGER_DATA);
1641 $h = simplexml_load_string($xml);
1642 $arr = convert_xml_element_to_array($h);
1646 if(isset($arr['xrd']['link'])) {
1647 $link = $arr['xrd']['link'];
1648 if(! isset($link[0]))
1649 $links = array($link);
1653 if(isset($arr['xrd']['alias'])) {
1654 $alias = $arr['xrd']['alias'];
1655 if(! isset($alias[0]))
1656 $aliases = array($alias);
1659 foreach($aliases as $alias) {
1660 $links[]['@attributes'] = array('rel' => 'alias' , 'href' => $alias);
1664 logger('fetch_xrd_links: ' . print_r($links,true), LOGGER_DATA);
1670 // Convert an ACL array to a storable string
1672 if(! function_exists('perms2str')) {
1673 function perms2str($p) {
1676 if(is_array($tmp)) {
1677 array_walk($tmp,'sanitise_acl');
1678 $ret = implode('',$tmp);
1683 // generate a guaranteed unique (for this domain) item ID for ATOM
1684 // safe from birthday paradox
1686 if(! function_exists('item_new_uri')) {
1687 function item_new_uri($hostname,$uid) {
1691 $hash = random_string();
1693 $uri = "urn:X-dfrn:" . $hostname . ':' . $uid . ':' . $hash;
1695 $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
1699 } while($dups == true);
1703 // Generate a guaranteed unique photo ID.
1704 // safe from birthday paradox
1706 if(! function_exists('photo_new_resource')) {
1707 function photo_new_resource() {
1711 $resource = hash('md5',uniqid(mt_rand(),true));
1712 $r = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1",
1717 } while($found == true);
1722 // Take a URL from the wild, prepend http:// if necessary
1723 // and check DNS to see if it's real
1724 // return true if it's OK, false if something is wrong with it
1726 if(! function_exists('validate_url')) {
1727 function validate_url(&$url) {
1728 if(substr($url,0,4) != 'http')
1729 $url = 'http://' . $url;
1730 $h = @parse_url($url);
1732 if(($h) && (dns_get_record($h['host'], DNS_A + DNS_CNAME + DNS_PTR))) {
1738 // checks that email is an actual resolvable internet address
1740 if(! function_exists('validate_email')) {
1741 function validate_email($addr) {
1743 if(! strpos($addr,'@'))
1745 $h = substr($addr,strpos($addr,'@') + 1);
1747 if(($h) && (dns_get_record($h, DNS_A + DNS_CNAME + DNS_PTR + DNS_MX))) {
1753 // Check $url against our list of allowed sites,
1754 // wildcards allowed. If allowed_sites is unset return true;
1755 // If url is allowed, return true.
1756 // otherwise, return false
1758 if(! function_exists('allowed_url')) {
1759 function allowed_url($url) {
1761 $h = @parse_url($url);
1767 $str_allowed = get_config('system','allowed_sites');
1773 $host = strtolower($h['host']);
1775 // always allow our own site
1777 if($host == strtolower($_SERVER['SERVER_NAME']))
1780 $fnmatch = function_exists('fnmatch');
1781 $allowed = explode(',',$str_allowed);
1783 if(count($allowed)) {
1784 foreach($allowed as $a) {
1785 $pat = strtolower(trim($a));
1786 if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
1795 // check if email address is allowed to register here.
1796 // Compare against our list (wildcards allowed).
1797 // Returns false if not allowed, true if allowed or if
1798 // allowed list is not configured.
1800 if(! function_exists('allowed_email')) {
1801 function allowed_email($email) {
1804 $domain = strtolower(substr($email,strpos($email,'@') + 1));
1808 $str_allowed = get_config('system','allowed_email');
1814 $fnmatch = function_exists('fnmatch');
1815 $allowed = explode(',',$str_allowed);
1817 if(count($allowed)) {
1818 foreach($allowed as $a) {
1819 $pat = strtolower(trim($a));
1820 if(($fnmatch && fnmatch($pat,$domain)) || ($pat == $domain)) {
1829 // Format the like/dislike text for a profile item
1830 // $cnt = number of people who like/dislike the item
1831 // $arr = array of pre-linked names of likers/dislikers
1832 // $type = one of 'like, 'dislike'
1834 // returns formatted text
1836 if(! function_exists('format_like')) {
1837 function format_like($cnt,$arr,$type,$id) {
1840 $o .= (($type === 'like') ? sprintf( t('%s likes this.'), $arr[0]) : sprintf( t('%s doesn\'t like this.'), $arr[0])) . EOL ;
1842 $spanatts = 'class="fakelink" onclick="openClose(\'' . $type . 'list-' . $id . '\');"';
1843 $o .= (($type === 'like') ?
1844 sprintf( t('<span %1$s>%2$d people</span> like this.'), $spanatts, $cnt)
1846 sprintf( t('<span %1$s>%2$d people</span> don\'t like this.'), $spanatts, $cnt) );
1848 $total = count($arr);
1849 if($total >= MAX_LIKERS)
1850 $arr = array_slice($arr, 0, MAX_LIKERS - 1);
1851 if($total < MAX_LIKERS)
1852 $arr[count($arr)-1] = t('and') . ' ' . $arr[count($arr)-1];
1853 $str = implode(', ', $arr);
1854 if($total >= MAX_LIKERS)
1855 $str .= sprintf( t(', and %d other people'), $total - MAX_LIKERS );
1856 $str = (($type === 'like') ? sprintf( t('%s like this.'), $str) : sprintf( t('%s don\'t like this.'), $str));
1857 $o .= "\t" . '<div id="' . $type . 'list-' . $id . '" style="display: none;" >' . $str . '</div>';
1863 // wrapper to load a view template, checking for alternate
1864 // languages before falling back to the default
1866 if(! function_exists('load_view_file')) {
1867 function load_view_file($s) {
1873 if(file_exists("$d/$lang/$b"))
1874 return file_get_contents("$d/$lang/$b");
1875 return file_get_contents($s);
1878 // for html,xml parsing - let's say you've got
1879 // an attribute foobar="class1 class2 class3"
1880 // and you want to find out if it contains 'class3'.
1881 // you can't use a normal sub string search because you
1882 // might match 'notclass3' and a regex to do the job is
1883 // possible but a bit complicated.
1884 // pass the attribute string as $attr and the attribute you
1885 // are looking for as $s - returns true if found, otherwise false
1887 if(! function_exists('attribute_contains')) {
1888 function attribute_contains($attr,$s) {
1889 $a = explode(' ', $attr);
1890 if(count($a) && in_array($s,$a))
1895 if(! function_exists('logger')) {
1896 function logger($msg,$level = 0) {
1897 $debugging = get_config('system','debugging');
1898 $loglevel = intval(get_config('system','loglevel'));
1899 $logfile = get_config('system','logfile');
1901 if((! $debugging) || (! $logfile) || ($level > $loglevel))
1904 @file_put_contents($logfile, datetime_convert() . ':' . session_id() . ' ' . $msg . "\n", FILE_APPEND);
1909 if(! function_exists('activity_match')) {
1910 function activity_match($haystack,$needle) {
1911 if(($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle,NAMESPACE_ACTIVITY_SCHEMA)))
1917 // Pull out all #hashtags and @person tags from $s;
1918 // We also get @person@domain.com - which would make
1919 // the regex quite complicated as tags can also
1920 // end a sentence. So we'll run through our results
1921 // and strip the period from any tags which end with one.
1922 // Returns array of tags found, or empty array.
1925 if(! function_exists('get_tags')) {
1926 function get_tags($s) {
1929 // ignore anything in a code block
1931 $s = preg_replace('/\[code\](.*?)\[\/code\]/sm','',$s);
1933 if(preg_match_all('/([@#][^ \x0D\x0A,:?]+)([ \x0D\x0A,:?]|$)/',$s,$match)) {
1934 foreach($match[1] as $match) {
1935 if(strstr($match,"]")) {
1936 // we might be inside a bbcode color tag - leave it alone
1939 if(substr($match,-1,1) === '.')
1940 $ret[] = substr($match,0,-1);
1950 // quick and dirty quoted_printable encoding
1952 if(! function_exists('qp')) {
1954 return str_replace ("%","=",rawurlencode($s));
1958 if(! function_exists('like_puller')) {
1959 function like_puller($a,$item,&$arr,$mode) {
1963 $verb = (($mode === 'like') ? ACTIVITY_LIKE : ACTIVITY_DISLIKE);
1965 if((activity_match($item['verb'],$verb)) && ($item['id'] != $item['parent'])) {
1966 $url = $item['author-link'];
1967 if((local_user()) && (local_user() == $item['uid']) && ($item['network'] === 'dfrn') && (! $item['self']) && (link_compare($item['author-link'],$item['url']))) {
1968 $url = $a->get_baseurl() . '/redir/' . $item['contact-id'];
1969 $sparkle = ' class="sparkle" ';
1971 if(! ((isset($arr[$item['parent'] . '-l'])) && (is_array($arr[$item['parent'] . '-l']))))
1972 $arr[$item['parent'] . '-l'] = array();
1973 if(! isset($arr[$item['parent']]))
1974 $arr[$item['parent']] = 1;
1976 $arr[$item['parent']] ++;
1977 $arr[$item['parent'] . '-l'][] = '<a href="'. $url . '"'. $sparkle .'>' . $item['author-name'] . '</a>';
1982 if(! function_exists('get_mentions')) {
1983 function get_mentions($item) {
1985 if(! strlen($item['tag']))
1988 $arr = explode(',',$item['tag']);
1989 foreach($arr as $x) {
1991 if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
1992 $o .= "\t\t" . '<link rel="mentioned" href="' . $matches[1] . '" />' . "\r\n";
1993 $o .= "\t\t" . '<link rel="ostatus:attention" href="' . $matches[1] . '" />' . "\r\n";
1999 if(! function_exists('contact_block')) {
2000 function contact_block() {
2004 $shown = get_pconfig($a->profile['uid'],'system','display_friend_count');
2008 if((! is_array($a->profile)) || ($a->profile['hide-friends']))
2010 $r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0",
2011 intval($a->profile['uid'])
2014 $total = intval($r[0]['total']);
2017 $o .= '<h4 class="contact-h4">' . t('No contacts') . '</h4>';
2020 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0 ORDER BY RAND() LIMIT %d",
2021 intval($a->profile['uid']),
2025 $o .= '<h4 class="contact-h4">' . sprintf(tt('%d Contact','%d Contacts', $total),$total) . '</h4><div id="contact-block">';
2026 foreach($r as $rr) {
2027 $redirect_url = $a->get_baseurl() . '/redir/' . $rr['id'];
2028 if(local_user() && ($rr['uid'] == local_user())
2029 && ($rr['network'] === 'dfrn')) {
2030 $url = $redirect_url;
2031 $sparkle = ' sparkle';
2038 $o .= '<div class="contact-block-div"><a class="contact-block-link' . $sparkle . '" href="' . $url . '" ><img class="contact-block-img' . $sparkle . '" src="' . $rr['micro'] . '" title="' . $rr['name'] . ' [' . $rr['url'] . ']" alt="' . $rr['name'] . '" /></a></div>' . "\r\n";
2040 $o .= '</div><div id="contact-block-end"></div>';
2041 $o .= '<div id="viewcontacts"><a id="viewcontacts-link" href="viewcontacts/' . $a->profile['nickname'] . '">' . t('View Contacts') . '</a></div>';
2045 $arr = array('contacts' => $r, 'output' => $o);
2047 call_hooks('contact_block_end', $arr);
2052 if(! function_exists('search')) {
2053 function search($s) {
2055 $o = '<div id="search-box">';
2056 $o .= '<form action="' . $a->get_baseurl() . '/search' . '" method="get" >';
2057 $o .= '<input type="text" name="search" id="search-text" value="' . $s .'" />';
2058 $o .= '<input type="submit" name="submit" id="search-submit" value="' . t('Search') . '" />';
2059 $o .= '</form></div>';
2063 if(! function_exists('valid_email')) {
2064 function valid_email($x){
2065 if(preg_match('/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/',$x))
2071 if(! function_exists('gravatar_img')) {
2072 function gravatar_img($email) {
2074 $opt = 'identicon'; // psuedo-random geometric pattern if not found
2076 $hash = md5(trim(strtolower($email)));
2078 $url = 'http://www.gravatar.com/avatar/' . $hash . '.jpg'
2079 . '?s=' . $size . '&d=' . $opt . '&r=' . $rating;
2081 logger('gravatar: ' . $email . ' ' . $url);
2085 if(! function_exists('aes_decrypt')) {
2086 function aes_decrypt($val,$ky)
2088 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2089 for($a=0;$a<strlen($ky);$a++)
2090 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2091 $mode = MCRYPT_MODE_ECB;
2092 $enc = MCRYPT_RIJNDAEL_128;
2093 $dec = @mcrypt_decrypt($enc, $key, $val, $mode, @mcrypt_create_iv( @mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM ) );
2094 return rtrim($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));
2098 if(! function_exists('aes_encrypt')) {
2099 function aes_encrypt($val,$ky)
2101 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2102 for($a=0;$a<strlen($ky);$a++)
2103 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2104 $mode=MCRYPT_MODE_ECB;
2105 $enc=MCRYPT_RIJNDAEL_128;
2106 $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
2107 return mcrypt_encrypt($enc, $key, $val, $mode, mcrypt_create_iv( mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM));
2115 * Replace naked text hyperlink with HTML formatted hyperlink
2119 if(! function_exists('linkify')) {
2120 function linkify($s) {
2121 $s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%\$\!\+]*)/", ' <a href="$1" target="external-link">$1</a>', $s);
2131 * Replaces text emoticons with graphical images
2133 * @Parameter: string $s
2138 if(! function_exists('smilies')) {
2139 function smilies($s) {
2143 array( '<3', '</3', '<\\3', ':-)', ';-)', ':-(', ':(', ':-P', ':-"', ':-x', ':-X', ':-D', '8-|', '8-O'),
2145 '<img src="' . $a->get_baseurl() . '/images/smiley-heart.gif" alt="<3" />',
2146 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="</3" />',
2147 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="<\\3" />',
2148 '<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":-)" />',
2149 '<img src="' . $a->get_baseurl() . '/images/smiley-wink.gif" alt=";-)" />',
2150 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":-(" />',
2151 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":(" />',
2152 '<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":-P" />',
2153 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-\"" />',
2154 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-x" />',
2155 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-X" />',
2156 '<img src="' . $a->get_baseurl() . '/images/smiley-laughing.gif" alt=":-D" />',
2157 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-|" />',
2158 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-O" />'
2165 * Function : profile_load
2167 * @parameter string $nickname
2168 * @parameter int $profile
2170 * Summary: Loads a profile into the page sidebar.
2171 * The function requires a writeable copy of the main App structure, and the nickname
2172 * of a registered local account.
2174 * If the viewer is an authenticated remote viewer, the profile displayed is the
2175 * one that has been configured for his/her viewing in the Contact manager.
2176 * Passing a non-zero profile ID can also allow a preview of a selected profile
2179 * Profile information is placed in the App structure for later retrieval.
2180 * Honours the owner's chosen theme for display.
2184 if(! function_exists('profile_load')) {
2185 function profile_load(&$a, $nickname, $profile = 0) {
2187 $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
2188 intval($_SESSION['visitor_id']));
2190 $profile = $r[0]['profile-id'];
2196 $profile_int = intval($profile);
2197 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2198 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2199 WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d LIMIT 1",
2201 intval($profile_int)
2205 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2206 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2207 WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 LIMIT 1",
2212 if(($r === false) || (! count($r))) {
2213 notice( t('No profile') . EOL );
2218 $a->profile = $r[0];
2221 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
2222 $_SESSION['theme'] = $a->profile['theme'];
2224 if(! (x($a->page,'aside')))
2225 $a->page['aside'] = '';
2227 $a->page['aside'] .= profile_sidebar($a->profile);
2228 $a->page['aside'] .= contact_block();
2236 * Function: profile_sidebar
2238 * Formats a profile for display in the sidebar.
2239 * It is very difficult to templatise the HTML completely
2240 * because of all the conditional logic.
2242 * @parameter: array $profile
2244 * Returns HTML string stuitable for sidebar inclusion
2245 * Exceptions: Returns empty string if passed $profile is wrong type or not populated
2250 if(! function_exists('profile_sidebar')) {
2251 function profile_sidebar($profile) {
2257 if((! is_array($profile)) && (! count($profile)))
2260 call_hooks('profile_sidebar_enter', $profile);
2262 $fullname = '<div class="fn">' . $profile['name'] . '</div>';
2264 $pdesc = '<div class="title">' . $profile['pdesc'] . '</div>';
2268 $photo = '<div id="profile-photo-wrapper"><img class="photo" src="' . $profile['photo'] . '" alt="' . $profile['name'] . '" /></div>';
2270 $connect = (($profile['uid'] != local_user()) ? '<li><a id="dfrn-request-link" href="dfrn_request/' . $profile['nickname'] . '">' . t('Connect') . '</a></li>' : '');
2272 if((x($profile,'address') == 1)
2273 || (x($profile,'locality') == 1)
2274 || (x($profile,'region') == 1)
2275 || (x($profile,'postal-code') == 1)
2276 || (x($profile,'country-name') == 1))
2280 $location .= '<div class="location"><span class="location-label">' . t('Location:') . '</span> <div class="adr">';
2281 $location .= ((x($profile,'address') == 1) ? '<div class="street-address">' . $profile['address'] . '</div>' : '');
2282 $location .= (((x($profile,'locality') == 1) || (x($profile,'region') == 1) || (x($profile,'postal-code') == 1))
2283 ? '<span class="city-state-zip"><span class="locality">' . $profile['locality'] . '</span>'
2284 . ((x($profile['locality']) == 1) ? t(', ') : '')
2285 . '<span class="region">' . $profile['region'] . '</span>'
2286 . ' <span class="postal-code">' . $profile['postal-code'] . '</span></span>' : '');
2287 $location .= ((x($profile,'country-name') == 1) ? ' <span class="country-name">' . $profile['country-name'] . '</span>' : '');
2288 $location .= '</div></div><div class="profile-clear"></div>';
2292 $gender = ((x($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>' : '');
2294 $pubkey = ((x($profile,'pubkey') == 1) ? '<div class="key" style="display:none;">' . $profile['pubkey'] . '</div>' : '');
2296 $marital = ((x($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><div class="profile-clear"></div>' : '');
2298 $homepage = ((x($profile,'homepage') == 1) ? '<div class="homepage"><span class="homepage-label">' . t('Homepage:') . ' </span><span class="homepage-url">' . linkify($profile['homepage']) . '</span></div></div><div class="profile-clear"></div>' : '');
2300 $tpl = load_view_file('view/profile_vcard.tpl');
2302 $o .= replace_macros($tpl, array(
2303 '$fullname' => $fullname,
2307 '$connect' => $connect,
2308 '$location' => $location,
2309 '$gender' => $gender,
2310 '$pubkey' => $pubkey,
2311 '$marital' => $marital,
2312 '$homepage' => $homepage
2316 $arr = array('profile' => $profile, 'entry' => $o);
2318 call_hooks('profile_sidebar', $arr);
2324 if(! function_exists('register_hook')) {
2325 function register_hook($hook,$file,$function) {
2327 $r = q("SELECT * FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2335 $r = q("INSERT INTO `hook` (`hook`, `file`, `function`) VALUES ( '%s', '%s', '%s' ) ",
2343 if(! function_exists('unregister_hook')) {
2344 function unregister_hook($hook,$file,$function) {
2346 $r = q("DELETE FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2355 if(! function_exists('load_hooks')) {
2356 function load_hooks() {
2358 $a->hooks = array();
2359 $r = q("SELECT * FROM `hook` WHERE 1");
2361 foreach($r as $rr) {
2362 $a->hooks[] = array($rr['hook'], $rr['file'], $rr['function']);
2368 if(! function_exists('call_hooks')) {
2369 function call_hooks($name, &$data = null) {
2372 if(count($a->hooks)) {
2373 foreach($a->hooks as $hook) {
2374 if($hook[HOOK_HOOK] === $name) {
2375 @include_once($hook[HOOK_FILE]);
2376 if(function_exists($hook[HOOK_FUNCTION])) {
2377 $func = $hook[HOOK_FUNCTION];
2386 if(! function_exists('day_translate')) {
2387 function day_translate($s) {
2388 $ret = str_replace(array('Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'),
2389 array( t('Monday'), t('Tuesday'), t('Wednesday'), t('Thursday'), t('Friday'), t('Saturday'), t('Sunday')),
2392 $ret = str_replace(array('January','February','March','April','May','June','July','August','September','October','November','December'),
2393 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')),
2399 if(! function_exists('get_birthdays')) {
2400 function get_birthdays() {
2408 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
2410 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
2411 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
2412 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
2413 ORDER BY `start` DESC ",
2414 intval(local_user()),
2415 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
2416 dbesc(datetime_convert('UTC','UTC','now'))
2419 if($r && count($r)) {
2422 if(strlen($rr['name']))
2425 $o .= '<div id="birthday-notice" class="birthday-notice fakelink" onclick=openClose(\'birthday-wrapper\'); >' . t('Birthday Reminders') . ' ' . '(' . $total . ')' . '</div>';
2426 $o .= '<div id="birthday-wrapper" style="display: none;" ><div id="birthday-title">' . t('Birthdays this week:') . '</div>';
2427 $o .= '<div id="birthday-adjust">' . t("\x28Adjusted for local time\x29") . '</div>';
2428 $o .= '<div id="birthday-title-end"></div>';
2430 foreach($r as $rr) {
2431 if(! strlen($rr['name']))
2433 $now = strtotime('now');
2434 $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
2436 $o .= '<div class="birthday-list" id="birthday-' . $rr['eid'] . '"><a class="sparkle" href="'
2437 . $a->get_baseurl() . '/redir/' . $rr['cid'] . '">' . $rr['name'] . '</a> '
2438 . day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $bd_format)) . (($today) ? ' ' . t('[today]') : '')
2442 $o .= '</div></div>';
2451 * Compare two URLs to see if they are the same, but ignore
2452 * slight but hopefully insignificant differences such as if one
2453 * is https and the other isn't, or if one is www.something and
2454 * the other isn't - and also ignore case differences.
2456 * Return true if the URLs match, otherwise false.
2460 if(! function_exists('link_compare')) {
2461 function link_compare($a,$b) {
2462 $a1 = str_replace(array('https:','//www.'), array('http:','//'), $a);
2463 $b1 = str_replace(array('https:','//www.'), array('http:','//'), $b);
2464 if(strcasecmp($a1,$b1) === 0)
2470 if(! function_exists('prepare_body')) {
2471 function prepare_body($item) {
2472 return prepare_text($item['body']);
2475 if(! function_exists('prepare_text')) {
2476 function prepare_text($text) {
2478 require_once('include/bbcode.php');
2480 $s = smilies(bbcode($text));
2487 * Wrap calls to proc_close(proc_open()) and call hook
2488 * so plugins can take part in process :)
2491 * $cmd program to run
2492 * next args are passed as $cmd command line
2494 * e.g.: proc_run("ls","-la","/tmp");
2496 * $cmd and string args are surrounded with ""
2499 if(! function_exists('proc_run')) {
2500 function proc_run($cmd){
2504 $args = func_get_args();
2505 call_hooks("proc_run", $args);
2507 if(count($args) && $args[0] === 'php')
2508 $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
2510 foreach ($args as $arg){
2511 $arg = escapeshellarg($arg);
2513 $cmdline = implode($args," ");
2514 proc_close(proc_open($cmdline." &",array(),$foo));
2518 * Return full URL to theme which is currently in effect.
2519 * Provide a sane default if nothing is chosen or the specified theme does not exist.
2522 if(! function_exists('current_theme_url')) {
2523 function current_theme_url() {
2525 $app_base_themes = array('duepuntozero', 'loozah');
2529 $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
2530 $theme_name = ((x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
2532 if($theme_name && file_exists('view/theme/' . $theme_name . '/style.css'))
2533 return($a->get_baseurl() . '/view/theme/' . $theme_name . '/style.css');
2535 foreach($app_base_themes as $t) {
2536 if(file_exists('view/theme/' . $t . '/style.css'))
2537 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
2540 $fallback = glob('view/theme/*/style.css');
2541 if(count($fallback))
2542 return($a->get_baseurl() . $fallback[0]);
2547 if(! function_exists('feed_birthday')) {
2548 function feed_birthday($uid,$tz) {
2552 * Determine the next birthday, but only if the birthday is published
2553 * in the default profile. We _could_ also look for a private profile that the
2554 * recipient can see, but somebody could get mad at us if they start getting
2555 * public birthday greetings when they haven't made this info public.
2557 * Assuming we are able to publish this info, we are then going to convert
2558 * the start time from the owner's timezone to UTC.
2560 * This will potentially solve the problem found with some social networks
2561 * where birthdays are converted to the viewer's timezone and salutations from
2562 * elsewhere in the world show up on the wrong day. We will convert it to the
2563 * viewer's timezone also, but first we are going to convert it from the birthday
2564 * person's timezone to GMT - so the viewer may find the birthday starting at
2565 * 6:00PM the day before, but that will correspond to midnight to the birthday person.
2571 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
2575 if($p && count($p)) {
2576 $tmp_dob = substr($p[0]['dob'],5);
2577 if(intval($tmp_dob)) {
2578 $y = datetime_convert($tz,$tz,'now','Y');
2579 $bd = $y . '-' . $tmp_dob . ' 00:00';
2580 $t_dob = strtotime($bd);
2581 $now = strtotime(datetime_convert($tz,$tz,'now'));
2583 $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
2584 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
2592 * return atom link elements for all of our hubs
2595 if(! function_exists('feed_hublinks')) {
2596 function feed_hublinks() {
2598 $hub = get_config('system','huburl');
2602 $hubs = explode(',', $hub);
2604 foreach($hubs as $h) {
2608 $hubxml .= '<link rel="hub" href="' . xmlify($h) . '" />' . "\n" ;
2615 /* return atom link elements for salmon endpoints */
2617 if(! function_exists('feed_salmonlinks')) {
2618 function feed_salmonlinks($nick) {
2622 $salmon = '<link rel="salmon" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2624 // old style links that status.net still needed as of 12/2010
2626 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-replies" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2627 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-mention" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2631 if(! function_exists('get_plink')) {
2632 function get_plink($item) {
2634 $plink = (((x($item,'plink')) && (! $item['private'])) ? '<div class="wall-item-links-wrapper"><a href="'
2635 . $item['plink'] . '" title="' . t('link to source') . '" target="external-link" ><img src="' . $a->get_baseurl() . '/images/remote-link.gif" alt="' . t('link to source') . '" /></a></div>' : '');
2639 if(! function_exists('unamp')) {
2640 function unamp($s) {
2641 return str_replace('&', '&', $s);
2644 if(! function_exists('extract_item_authors')) {
2645 function extract_item_authors($arr,$uid) {
2647 if((! $uid) || (! is_array($arr)) || (! count($arr)))
2650 foreach($arr as $rr) {
2651 if(! in_array("'" . dbesc($rr['author-link']) . "'",$urls))
2652 $urls[] = "'" . dbesc($rr['author-link']) . "'";
2655 // pre-quoted, don't put quotes on %s
2657 $r = q("SELECT `id`,`url` FROM `contact` WHERE `uid` = %d AND `url` IN ( %s ) AND `network` = 'dfrn' AND `self` = 0 AND `blocked` = 0 ",
2664 $ret[$rr['url']] = $rr['id'];
2671 if(! function_exists('lang_selector')) {
2672 function lang_selector() {
2674 $o .= '<div id="language-selector" style="display: none;" >';
2675 $o .= '<form action="" method="post" ><select name="system_language" onchange="this.form.submit();" >';
2676 $langs = glob('view/*/strings.php');
2677 if(is_array($langs) && count($langs)) {
2678 if(! in_array('view/en/strings.php',$langs))
2679 $langs[] = 'view/en/';
2680 foreach($langs as $l) {
2682 $ll = substr($ll,0,strrpos($ll,'/'));
2683 $selected = (($ll === $lang) ? ' selected="selected" ' : '');
2684 $o .= '<option value="' . $ll . '"' . $selected . '>' . $ll . '</option>';
2687 $o .= '</select></form></div>';