5 define ( 'FRIENDIKA_VERSION', '2.1.928' );
6 define ( 'DFRN_PROTOCOL_VERSION', '2.1' );
7 define ( 'DB_UPDATE_VERSION', 1045 );
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
362 function set_curl_code($code) {
363 $this->curl_code = $code;
366 function get_curl_code() {
367 return $this->curl_code;
370 function set_curl_headers($headers) {
371 $this->curl_headers = $headers;
374 function get_curl_headers() {
375 return $this->curl_headers;
381 // retrieve the App structure
382 // useful in functions which require it but don't get it passed to them
384 if(! function_exists('get_app')) {
391 // Multi-purpose function to check variable state.
392 // Usage: x($var) or $x($array,'key')
393 // returns false if variable/key is not set
394 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
395 // e.g. x('') or x(0) returns 0;
397 if(! function_exists('x')) {
398 function x($s,$k = NULL) {
400 if((is_array($s)) && (array_key_exists($k,$s))) {
418 // called from db initialisation if db is dead.
420 if(! function_exists('system_unavailable')) {
421 function system_unavailable() {
422 include('system_unavailable.php');
427 // Primarily involved with database upgrade, but also sets the
428 // base url for use in cmdline programs which don't have
429 // $_SERVER variables, and synchronising the state of installed plugins.
432 if(! function_exists('check_config')) {
433 function check_config(&$a) {
436 load_config('system');
438 if(! x($_SERVER,'SERVER_NAME'))
441 $build = get_config('system','build');
443 $build = set_config('system','build',DB_UPDATE_VERSION);
445 $url = get_config('system','url');
447 $url = set_config('system','url',$a->get_baseurl());
449 if($build != DB_UPDATE_VERSION) {
450 $stored = intval($build);
451 $current = intval(DB_UPDATE_VERSION);
452 if(($stored < $current) && file_exists('update.php')) {
453 // We're reporting a different version than what is currently installed.
454 // Run any existing update scripts to bring the database up to current.
456 require_once('update.php');
457 for($x = $stored; $x < $current; $x ++) {
458 if(function_exists('update_' . $x)) {
459 $func = 'update_' . $x;
463 set_config('system','build', DB_UPDATE_VERSION);
469 * Synchronise plugins:
471 * $a->config['system']['addon'] contains a comma-separated list of names
472 * of plugins/addons which are used on this system.
473 * Go through the database list of already installed addons, and if we have
474 * an entry, but it isn't in the config list, call the uninstall procedure
475 * and mark it uninstalled in the database (for now we'll remove it).
476 * Then go through the config list and if we have a plugin that isn't installed,
477 * call the install procedure and add it to the database.
481 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
485 $installed = array();
487 $plugins = get_config('system','addon');
488 $plugins_arr = array();
491 $plugins_arr = explode(',',str_replace(' ', '',$plugins));
493 $a->plugins = $plugins_arr;
495 $installed_arr = array();
497 if(count($installed)) {
498 foreach($installed as $i) {
499 if(! in_array($i['name'],$plugins_arr)) {
500 logger("Addons: uninstalling " . $i['name']);
501 q("DELETE FROM `addon` WHERE `id` = %d LIMIT 1",
505 @include_once('addon/' . $i['name'] . '/' . $i['name'] . '.php');
506 if(function_exists($i['name'] . '_uninstall')) {
507 $func = $i['name'] . '_uninstall';
512 $installed_arr[] = $i['name'];
516 if(count($plugins_arr)) {
517 foreach($plugins_arr as $p) {
518 if(! in_array($p,$installed_arr)) {
519 logger("Addons: installing " . $p);
520 $t = filemtime('addon/' . $p . '/' . $p . '.php');
521 @include_once('addon/' . $p . '/' . $p . '.php');
522 if(function_exists($p . '_install')) {
523 $func = $p . '_install';
525 $r = q("INSERT INTO `addon` (`name`, `installed`, `timestamp`) VALUES ( '%s', 1, %d ) ",
540 // reload all updated plugins
542 if(! function_exists('reload_plugins')) {
543 function reload_plugins() {
544 $plugins = get_config('system','addon');
545 if(strlen($plugins)) {
547 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
551 $installed = array();
553 $parr = explode(',',$plugins);
555 foreach($parr as $pl) {
558 $t = filemtime('addon/' . $pl . '/' . $pl . '.php');
559 foreach($installed as $i) {
560 if(($i['name'] == $pl) && ($i['timestamp'] != $t)) {
561 logger('Reloading plugin: ' . $i['name']);
562 @include_once('addon/' . $pl . '/' . $pl . '.php');
564 if(function_exists($pl . '_uninstall')) {
565 $func = $pl . '_uninstall';
568 if(function_exists($pl . '_install')) {
569 $func = $pl . '_install';
572 q("UPDATE `addon` SET `timestamp` = %d WHERE `id` = %d LIMIT 1",
585 // This is our template processor.
586 // $s is the string requiring macro substitution.
587 // $r is an array of key value pairs (search => replace)
588 // returns substituted string.
589 // WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other.
590 // For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing,
591 // depending on the order in which they were declared in the array.
593 if(! function_exists('replace_macros')) {
594 function replace_macros($s,$r) {
599 if(is_array($r) && count($r)) {
600 foreach ($r as $k => $v ) {
605 return str_replace($search,$replace,$s);
609 // curl wrapper. If binary flag is true, return binary
612 if(! function_exists('fetch_url')) {
613 function fetch_url($url,$binary = false, &$redirects = 0) {
617 $ch = curl_init($url);
618 if(($redirects > 8) || (! $ch))
621 curl_setopt($ch, CURLOPT_HEADER, true);
622 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
625 $curl_time = intval(get_config('system','curl_timeout'));
626 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
628 // by default we will allow self-signed certs
629 // but you can override this
631 $check_cert = get_config('system','verifyssl');
632 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
634 $prx = get_config('system','proxy');
636 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
637 curl_setopt($ch, CURLOPT_PROXY, $prx);
638 $prxusr = get_config('system','proxyuser');
640 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
643 curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
645 $a->set_curl_code(0);
647 // don't let curl abort the entire application
648 // if it throws any errors.
650 $s = @curl_exec($ch);
652 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
653 $header = substr($s,0,strpos($s,"\r\n\r\n"));
654 if(stristr($header,'100') && (strlen($header) < 30)) {
655 // 100 Continue has two headers, get the real one
656 $s = substr($s,strlen($header)+4);
657 $header = substr($s,0,strpos($s,"\r\n\r\n"));
659 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
661 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
662 $url = trim(array_pop($matches));
663 $url_parsed = @parse_url($url);
664 if (isset($url_parsed)) {
666 return fetch_url($url,$binary,$redirects);
669 $a->set_curl_code($http_code);
671 $body = substr($s,strlen($header)+4);
673 /* one more try to make sure there are no more headers */
675 if(strpos($body,'HTTP/') === 0) {
676 $header = substr($body,0,strpos($body,"\r\n\r\n"));
677 $body = substr($body,strlen($header)+4);
680 $a->set_curl_headers($header);
686 // post request to $url. $params is an array of post variables.
688 if(! function_exists('post_url')) {
689 function post_url($url,$params, $headers = null, &$redirects = 0) {
691 $ch = curl_init($url);
692 if(($redirects > 8) || (! $ch))
695 curl_setopt($ch, CURLOPT_HEADER, true);
696 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
697 curl_setopt($ch, CURLOPT_POST,1);
698 curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
700 $curl_time = intval(get_config('system','curl_timeout'));
701 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
703 if(is_array($headers))
704 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
706 $check_cert = get_config('system','verifyssl');
707 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
708 $prx = get_config('system','proxy');
710 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
711 curl_setopt($ch, CURLOPT_PROXY, $prx);
712 $prxusr = get_config('system','proxyuser');
714 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
717 $a->set_curl_code(0);
719 // don't let curl abort the entire application
720 // if it throws any errors.
722 $s = @curl_exec($ch);
724 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
725 $header = substr($s,0,strpos($s,"\r\n\r\n"));
726 if(stristr($header,'100') && (strlen($header) < 30)) {
727 // 100 Continue has two headers, get the real one
728 $s = substr($s,strlen($header)+4);
729 $header = substr($s,0,strpos($s,"\r\n\r\n"));
731 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
733 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
734 $url = trim(array_pop($matches));
735 $url_parsed = @parse_url($url);
736 if (isset($url_parsed)) {
738 return post_url($url,$binary,$headers,$redirects);
741 $a->set_curl_code($http_code);
742 $body = substr($s,strlen($header)+4);
744 /* one more try to make sure there are no more headers */
746 if(strpos($body,'HTTP/') === 0) {
747 $header = substr($body,0,strpos($body,"\r\n\r\n"));
748 $body = substr($body,strlen($header)+4);
751 $a->set_curl_headers($header);
757 // random hash, 64 chars
759 if(! function_exists('random_string')) {
760 function random_string() {
761 return(hash('sha256',uniqid(rand(),true)));
765 * This is our primary input filter.
767 * The high bit hack only involved some old IE browser, forget which (IE5/Mac?)
768 * that had an XSS attack vector due to stripping the high-bit on an 8-bit character
769 * after cleansing, and angle chars with the high bit set could get through as markup.
771 * This is now disabled because it was interfering with some legitimate unicode sequences
772 * and hopefully there aren't a lot of those browsers left.
774 * Use this on any text input where angle chars are not valid or permitted
775 * They will be replaced with safer brackets. This may be filtered further
776 * if these are not allowed either.
780 if(! function_exists('notags')) {
781 function notags($string) {
783 return(str_replace(array("<",">"), array('[',']'), $string));
785 // High-bit filter no longer used
786 // return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string));
789 // use this on "body" or "content" input where angle chars shouldn't be removed,
790 // and allow them to be safely displayed.
792 if(! function_exists('escape_tags')) {
793 function escape_tags($string) {
795 return(htmlspecialchars($string));
798 // wrapper for adding a login box. If $register == true provide a registration
799 // link. This will most always depend on the value of $a->config['register_policy'].
800 // returns the complete html for inserting into the page
802 if(! function_exists('login')) {
803 function login($register = false) {
805 $register_tpl = (($register) ? load_view_file("view/register-link.tpl") : "");
807 $register_html = replace_macros($register_tpl,array(
808 '$title' => t('Create a New Account'),
809 '$desc' => t('Register')
812 $noid = get_config('system','no_openid');
814 $classname = 'no-openid';
815 $namelabel = t('Nickname or Email address: ');
816 $passlabel = t('Password: ');
820 $classname = 'openid';
821 $namelabel = t('Nickname/Email/OpenID: ');
822 $passlabel = t("Password \x28if not OpenID\x29: ");
825 $lostpass = t('Forgot your password?');
826 $lostlink = t('Password Reset');
829 $tpl = load_view_file("view/logout.tpl");
832 $tpl = load_view_file("view/login.tpl");
836 $o = replace_macros($tpl,array(
837 '$logout' => t('Logout'),
838 '$register_html' => $register_html,
839 '$classname' => $classname,
840 '$namelabel' => $namelabel,
841 '$passlabel' => $passlabel,
843 '$lostpass' => $lostpass,
844 '$lostlink' => $lostlink
850 // generate a string that's random, but usually pronounceable.
851 // used to generate initial passwords
853 if(! function_exists('autoname')) {
854 function autoname($len) {
856 $vowels = array('a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u');
857 if(mt_rand(0,5) == 4)
875 's','sc','sh','sm','sp','st',
883 $midcons = array('ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
884 'nd','ng','nk','nt','rn','rp','rt');
886 $noend = array('bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
887 'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh');
889 $start = mt_rand(0,2);
897 for ($x = 0; $x < $len; $x ++) {
898 $r = mt_rand(0,count($table) - 1);
901 if($table == $vowels)
902 $table = array_merge($cons,$midcons);
908 $word = substr($word,0,$len);
910 foreach($noend as $noe) {
911 if((strlen($word) > 2) && (substr($word,-2) == $noe)) {
912 $word = substr($word,0,-1);
916 if(substr($word,-1) == 'q')
917 $word = substr($word,0,-1);
921 // Used to end the current process, after saving session state.
923 if(! function_exists('killme')) {
925 session_write_close();
929 // redirect to another URL and terminate this process.
931 if(! function_exists('goaway')) {
932 function goaway($s) {
933 header("Location: $s");
937 // Generic XML return
938 // Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
939 // of $st and an optional text <message> of $message and terminates the current process.
941 if(! function_exists('xml_status')) {
942 function xml_status($st, $message = '') {
944 $xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
947 logger('xml_status returning non_zero: ' . $st . " message=" . $message);
949 header( "Content-type: text/xml" );
950 echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
951 echo "<result>\r\n\t<status>$st</status>\r\n$xml_message</result>\r\n";
955 // Returns the uid of locally logged in user or false.
957 if(! function_exists('local_user')) {
958 function local_user() {
959 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
960 return intval($_SESSION['uid']);
964 // Returns contact id of authenticated site visitor or false
966 if(! function_exists('remote_user')) {
967 function remote_user() {
968 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
969 return intval($_SESSION['visitor_id']);
973 // contents of $s are displayed prominently on the page the next time
974 // a page is loaded. Usually used for errors or alerts.
976 if(! function_exists('notice')) {
977 function notice($s) {
980 $_SESSION['sysmsg'] .= $s;
983 // wrapper around config to limit the text length of an incoming message
985 if(! function_exists('get_max_import_size')) {
986 function get_max_import_size() {
988 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
992 // escape text ($str) for XML transport
993 // returns escaped text.
995 if(! function_exists('xmlify')) {
996 function xmlify($str) {
999 for($x = 0; $x < strlen($str); $x ++) {
1010 $buffer .= ''';
1013 $buffer .= '"';
1029 $buffer = trim($buffer);
1034 // pass xml escaped text ($s), returns unescaped text
1036 if(! function_exists('unxmlify')) {
1037 function unxmlify($s) {
1038 $ret = str_replace('&','&', $s);
1039 $ret = str_replace(array('<','>','"','''),array('<','>','"',"'"),$ret);
1043 // convenience wrapper, reverse the operation "bin2hex"
1045 if(! function_exists('hex2bin')) {
1046 function hex2bin($s) {
1047 if(! ctype_xdigit($s)) {
1048 logger('hex2bin: illegal input: ' . print_r(debug_backtrace(), true));
1052 return(pack("H*",$s));
1055 // Automatic pagination.
1056 // To use, get the count of total items.
1057 // Then call $a->set_pager_total($number_items);
1058 // Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page
1059 // Then call paginate($a) after the end of the display loop to insert the pager block on the page
1060 // (assuming there are enough items to paginate).
1061 // When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage']
1062 // will limit the results to the correct items for the current page.
1063 // The actual page handling is then accomplished at the application layer.
1065 if(! function_exists('paginate')) {
1066 function paginate(&$a) {
1068 $stripped = preg_replace('/(&page=[0-9]*)/','',$a->query_string);
1069 $stripped = str_replace('q=','',$stripped);
1070 $stripped = trim($stripped,'/');
1071 $url = $a->get_baseurl() . '/' . $stripped;
1074 if($a->pager['total'] > $a->pager['itemspage']) {
1075 $o .= '<div class="pager">';
1076 if($a->pager['page'] != 1)
1077 $o .= '<span class="pager_prev">'."<a href=\"$url".'&page='.($a->pager['page'] - 1).'">' . t('prev') . '</a></span> ';
1079 $o .= "<span class=\"pager_first\"><a href=\"$url"."&page=1\">" . t('first') . "</a></span> ";
1081 $numpages = $a->pager['total'] / $a->pager['itemspage'];
1084 $numstop = $numpages;
1086 if($numpages > 14) {
1087 $numstart = (($pagenum > 7) ? ($pagenum - 7) : 1);
1088 $numstop = (($pagenum > ($numpages - 7)) ? $numpages : ($numstart + 14));
1091 for($i = $numstart; $i <= $numstop; $i++){
1092 if($i == $a->pager['page'])
1093 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1095 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1099 if(($a->pager['total'] % $a->pager['itemspage']) != 0) {
1100 if($i == $a->pager['page'])
1101 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1103 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1107 $lastpage = (($numpages > intval($numpages)) ? intval($numpages)+1 : $numpages);
1108 $o .= "<span class=\"pager_last\"><a href=\"$url"."&page=$lastpage\">" . t('last') . "</a></span> ";
1110 if(($a->pager['total'] - ($a->pager['itemspage'] * $a->pager['page'])) > 0)
1111 $o .= '<span class="pager_next">'."<a href=\"$url"."&page=".($a->pager['page'] + 1).'">' . t('next') . '</a></span>';
1112 $o .= '</div>'."\r\n";
1117 // Turn user/group ACLs stored as angle bracketed text into arrays
1119 if(! function_exists('expand_acl')) {
1120 function expand_acl($s) {
1121 // turn string array of angle-bracketed elements into numeric array
1122 // e.g. "<1><2><3>" => array(1,2,3);
1126 $t = str_replace('<','',$s);
1127 $a = explode('>',$t);
1128 foreach($a as $aa) {
1130 $ret[] = intval($aa);
1136 // Used to wrap ACL elements in angle brackets for storage
1138 if(! function_exists('sanitise_acl')) {
1139 function sanitise_acl(&$item) {
1141 $item = '<' . intval(notags(trim($item))) . '>';
1146 // retrieve a "family" of config variables from database to cached storage
1148 if(! function_exists('load_config')) {
1149 function load_config($family) {
1151 $r = q("SELECT * FROM `config` WHERE `cat` = '%s'",
1155 foreach($r as $rr) {
1157 $a->config[$family][$k] = $rr['v'];
1162 // get a particular config variable given the family name
1163 // and key. Returns false if not set.
1164 // $instore is only used by the set_config function
1165 // to determine if the key already exists in the DB
1166 // If a key is found in the DB but doesn't exist in
1167 // local config cache, pull it into the cache so we don't have
1168 // to hit the DB again for this item.
1170 if(! function_exists('get_config')) {
1171 function get_config($family, $key, $instore = false) {
1176 if(isset($a->config[$family][$key])) {
1177 if($a->config[$family][$key] === '!<unset>!') {
1180 return $a->config[$family][$key];
1183 $ret = q("SELECT `v` FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1188 $a->config[$family][$key] = $ret[0]['v'];
1189 return $ret[0]['v'];
1192 $a->config[$family][$key] = '!<unset>!';
1197 // Store a config value ($value) in the category ($family)
1198 // under the key ($key)
1199 // Return the value, or false if the database update failed
1201 if(! function_exists('set_config')) {
1202 function set_config($family,$key,$value) {
1206 if(get_config($family,$key,true) === false) {
1207 $ret = q("INSERT INTO `config` ( `cat`, `k`, `v` ) VALUES ( '%s', '%s', '%s' ) ",
1216 $ret = q("UPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1222 $a->config[$family][$key] = $value;
1230 if(! function_exists('load_pconfig')) {
1231 function load_pconfig($uid,$family) {
1233 $r = q("SELECT * FROM `pconfig` WHERE `cat` = '%s' AND `uid` = %d",
1238 foreach($r as $rr) {
1240 $a->config[$uid][$family][$k] = $rr['v'];
1247 if(! function_exists('get_pconfig')) {
1248 function get_pconfig($uid,$family, $key, $instore = false) {
1253 if(isset($a->config[$uid][$family][$key])) {
1254 if($a->config[$uid][$family][$key] === '!<unset>!') {
1257 return $a->config[$uid][$family][$key];
1261 $ret = q("SELECT `v` FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1268 $a->config[$uid][$family][$key] = $ret[0]['v'];
1269 return $ret[0]['v'];
1272 $a->config[$uid][$family][$key] = '!<unset>!';
1277 if(! function_exists('del_config')) {
1278 function del_config($family,$key) {
1281 if(x($a->config[$family],$key))
1282 unset($a->config[$family][$key]);
1283 $ret = q("DELETE FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1292 // Same as above functions except these are for personal config storage and take an
1293 // additional $uid argument.
1295 if(! function_exists('set_pconfig')) {
1296 function set_pconfig($uid,$family,$key,$value) {
1300 if(get_pconfig($uid,$family,$key,true) === false) {
1301 $ret = q("INSERT INTO `pconfig` ( `uid`, `cat`, `k`, `v` ) VALUES ( %d, '%s', '%s', '%s' ) ",
1311 $ret = q("UPDATE `pconfig` SET `v` = '%s' WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1318 $a->config[$uid][$family][$key] = $value;
1325 if(! function_exists('del_pconfig')) {
1326 function del_pconfig($uid,$family,$key) {
1329 if(x($a->config[$uid][$family],$key))
1330 unset($a->config[$uid][$family][$key]);
1331 $ret = q("DELETE FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1340 // convert an XML document to a normalised, case-corrected array
1341 // used by webfinger
1343 if(! function_exists('convert_xml_element_to_array')) {
1344 function convert_xml_element_to_array($xml_element, &$recursion_depth=0) {
1346 // If we're getting too deep, bail out
1347 if ($recursion_depth > 512) {
1351 if (!is_string($xml_element) &&
1352 !is_array($xml_element) &&
1353 (get_class($xml_element) == 'SimpleXMLElement')) {
1354 $xml_element_copy = $xml_element;
1355 $xml_element = get_object_vars($xml_element);
1358 if (is_array($xml_element)) {
1359 $result_array = array();
1360 if (count($xml_element) <= 0) {
1361 return (trim(strval($xml_element_copy)));
1364 foreach($xml_element as $key=>$value) {
1367 $result_array[strtolower($key)] =
1368 convert_xml_element_to_array($value, $recursion_depth);
1371 if ($recursion_depth == 0) {
1372 $temp_array = $result_array;
1373 $result_array = array(
1374 strtolower($xml_element_copy->getName()) => $temp_array,
1378 return ($result_array);
1381 return (trim(strval($xml_element)));
1385 // Given an email style address, perform webfinger lookup and
1386 // return the resulting DFRN profile URL, or if no DFRN profile URL
1387 // is located, returns an OStatus subscription template (prefixed
1388 // with the string 'stat:' to identify it as on OStatus template).
1389 // If this isn't an email style address just return $s.
1390 // Return an empty string if email-style addresses but webfinger fails,
1391 // or if the resultant personal XRD doesn't contain a supported
1392 // subscription/friend-request attribute.
1394 if(! function_exists('webfinger_dfrn')) {
1395 function webfinger_dfrn($s) {
1396 if(! strstr($s,'@')) {
1399 $links = webfinger($s);
1400 logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA);
1402 foreach($links as $link)
1403 if($link['@attributes']['rel'] === NAMESPACE_DFRN)
1404 return $link['@attributes']['href'];
1405 foreach($links as $link)
1406 if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB)
1407 return 'stat:' . $link['@attributes']['template'];
1412 // Given an email style address, perform webfinger lookup and
1413 // return the array of link attributes from the personal XRD file.
1414 // On error/failure return an empty array.
1417 if(! function_exists('webfinger')) {
1418 function webfinger($s) {
1420 if(strstr($s,'@')) {
1421 $host = substr($s,strpos($s,'@') + 1);
1424 $tpl = fetch_lrdd_template($host);
1425 logger('webfinger: lrdd template: ' . $tpl);
1427 $pxrd = str_replace('{uri}', urlencode('acct:' . $s), $tpl);
1428 logger('webfinger: pxrd: ' . $pxrd);
1429 $links = fetch_xrd_links($pxrd);
1430 if(! count($links)) {
1431 // try with double slashes
1432 $pxrd = str_replace('{uri}', urlencode('acct://' . $s), $tpl);
1433 logger('webfinger: pxrd: ' . $pxrd);
1434 $links = fetch_xrd_links($pxrd);
1442 if(! function_exists('lrdd')) {
1443 function lrdd($uri) {
1447 // default priority is host priority, host-meta first
1451 // All we have is an email address. Resource-priority is irrelevant
1452 // because our URI isn't directly resolvable.
1454 if(strstr($uri,'@')) {
1455 return(webfinger($uri));
1458 // get the host meta file
1460 $host = @parse_url($uri);
1463 $url = ((x($host,'scheme')) ? $host['scheme'] : 'http') . '://';
1464 $url .= $host['host'] . '/.well-known/host-meta' ;
1469 logger('lrdd: constructed url: ' . $url);
1471 $xml = fetch_url($url);
1472 $headers = $a->get_curl_headers();
1477 logger('lrdd: host_meta: ' . $xml, LOGGER_DATA);
1478 $h = simplexml_load_string($xml);
1479 $arr = convert_xml_element_to_array($h);
1481 if(isset($arr['xrd']['property'])) {
1482 $property = $arr['crd']['property'];
1483 if(! isset($property[0]))
1484 $properties = array($property);
1486 $properties = $property;
1487 foreach($properties as $prop)
1488 if((string) $prop['@attributes'] === 'http://lrdd.net/priority/resource')
1489 $priority = 'resource';
1492 // save the links in case we need them
1496 if(isset($arr['xrd']['link'])) {
1497 $link = $arr['xrd']['link'];
1498 if(! isset($link[0]))
1499 $links = array($link);
1504 // do we have a template or href?
1507 foreach($links as $link) {
1508 if($link['@attributes']['rel'] && attribute_contains($link['@attributes']['rel'],'lrdd')) {
1509 if(x($link['@attributes'],'template'))
1510 $tpl = $link['@attributes']['template'];
1511 elseif(x($link['@attributes'],'href'))
1512 $href = $link['@attributes']['href'];
1517 if((! isset($tpl)) || (! strpos($tpl,'{uri}')))
1520 if($priority === 'host') {
1522 $pxrd = str_replace('{uri}', urlencode($uri), $tpl);
1523 elseif(isset($href))
1526 logger('lrdd: (host priority) pxrd: ' . $pxrd);
1527 $links = fetch_xrd_links($pxrd);
1531 $lines = explode("\n",$headers);
1533 foreach($lines as $line) {
1534 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1535 return(fetch_xrd_links($matches[1]));
1543 // priority 'resource'
1546 $html = fetch_url($uri);
1547 $headers = $a->get_curl_headers();
1548 logger('lrdd: headers=' . $headers, LOGGER_DEBUG);
1550 require_once('library/HTML5/Parser.php');
1551 $dom = @HTML5_Parser::parse($html);
1554 $items = $dom->getElementsByTagName('link');
1555 foreach($items as $item) {
1556 $x = $item->getAttribute('rel');
1558 $pagelink = $item->getAttribute('href');
1564 if(isset($pagelink))
1565 return(fetch_xrd_links($pagelink));
1567 // next look in HTTP headers
1569 $lines = explode("\n",$headers);
1571 foreach($lines as $line) {
1572 // TODO alter the following regex to support multiple relations (space separated)
1573 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1574 $pagelink = $matches[1];
1577 // don't try and run feeds through the html5 parser
1578 if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml'))))
1580 if(stristr($html,'<rss') || stristr($html,'<feed'))
1585 if(isset($pagelink))
1586 return(fetch_xrd_links($pagelink));
1588 // If we haven't found any links, return the host xrd links (which we have already fetched)
1599 // Given a host name, locate the LRDD template from that
1600 // host. Returns the LRDD template or an empty string on
1603 if(! function_exists('fetch_lrdd_template')) {
1604 function fetch_lrdd_template($host) {
1607 $url1 = 'https://' . $host . '/.well-known/host-meta' ;
1608 $url2 = 'http://' . $host . '/.well-known/host-meta' ;
1609 $links = fetch_xrd_links($url1);
1610 logger('template (https): ' . print_r($links,true));
1611 if(! count($links)) {
1612 $links = fetch_xrd_links($url2);
1613 logger('template (http): ' . print_r($links,true));
1616 foreach($links as $link)
1617 if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd')
1618 $tpl = $link['@attributes']['template'];
1620 if(! strpos($tpl,'{uri}'))
1625 // Given a URL, retrieve the page as an XRD document.
1626 // Return an array of links.
1627 // on error/failure return empty array.
1629 if(! function_exists('fetch_xrd_links')) {
1630 function fetch_xrd_links($url) {
1633 $xml = fetch_url($url);
1637 logger('fetch_xrd_links: ' . $xml, LOGGER_DATA);
1638 $h = simplexml_load_string($xml);
1639 $arr = convert_xml_element_to_array($h);
1643 if(isset($arr['xrd']['link'])) {
1644 $link = $arr['xrd']['link'];
1645 if(! isset($link[0]))
1646 $links = array($link);
1650 if(isset($arr['xrd']['alias'])) {
1651 $alias = $arr['xrd']['alias'];
1652 if(! isset($alias[0]))
1653 $aliases = array($alias);
1656 foreach($aliases as $alias) {
1657 $links[]['@attributes'] = array('rel' => 'alias' , 'href' => $alias);
1661 logger('fetch_xrd_links: ' . print_r($links,true), LOGGER_DATA);
1667 // Convert an ACL array to a storable string
1669 if(! function_exists('perms2str')) {
1670 function perms2str($p) {
1673 if(is_array($tmp)) {
1674 array_walk($tmp,'sanitise_acl');
1675 $ret = implode('',$tmp);
1680 // generate a guaranteed unique (for this domain) item ID for ATOM
1681 // safe from birthday paradox
1683 if(! function_exists('item_new_uri')) {
1684 function item_new_uri($hostname,$uid) {
1688 $hash = random_string();
1690 $uri = "urn:X-dfrn:" . $hostname . ':' . $uid . ':' . $hash;
1692 $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
1696 } while($dups == true);
1700 // Generate a guaranteed unique photo ID.
1701 // safe from birthday paradox
1703 if(! function_exists('photo_new_resource')) {
1704 function photo_new_resource() {
1708 $resource = hash('md5',uniqid(mt_rand(),true));
1709 $r = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1",
1714 } while($found == true);
1719 // Take a URL from the wild, prepend http:// if necessary
1720 // and check DNS to see if it's real
1721 // return true if it's OK, false if something is wrong with it
1723 if(! function_exists('validate_url')) {
1724 function validate_url(&$url) {
1725 if(substr($url,0,4) != 'http')
1726 $url = 'http://' . $url;
1727 $h = @parse_url($url);
1729 if(($h) && (dns_get_record($h['host'], DNS_A + DNS_CNAME + DNS_PTR))) {
1735 // checks that email is an actual resolvable internet address
1737 if(! function_exists('validate_email')) {
1738 function validate_email($addr) {
1740 if(! strpos($addr,'@'))
1742 $h = substr($addr,strpos($addr,'@') + 1);
1744 if(($h) && (dns_get_record($h, DNS_A + DNS_CNAME + DNS_PTR + DNS_MX))) {
1750 // Check $url against our list of allowed sites,
1751 // wildcards allowed. If allowed_sites is unset return true;
1752 // If url is allowed, return true.
1753 // otherwise, return false
1755 if(! function_exists('allowed_url')) {
1756 function allowed_url($url) {
1758 $h = @parse_url($url);
1764 $str_allowed = get_config('system','allowed_sites');
1770 $host = strtolower($h['host']);
1772 // always allow our own site
1774 if($host == strtolower($_SERVER['SERVER_NAME']))
1777 $fnmatch = function_exists('fnmatch');
1778 $allowed = explode(',',$str_allowed);
1780 if(count($allowed)) {
1781 foreach($allowed as $a) {
1782 $pat = strtolower(trim($a));
1783 if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
1792 // check if email address is allowed to register here.
1793 // Compare against our list (wildcards allowed).
1794 // Returns false if not allowed, true if allowed or if
1795 // allowed list is not configured.
1797 if(! function_exists('allowed_email')) {
1798 function allowed_email($email) {
1801 $domain = strtolower(substr($email,strpos($email,'@') + 1));
1805 $str_allowed = get_config('system','allowed_email');
1811 $fnmatch = function_exists('fnmatch');
1812 $allowed = explode(',',$str_allowed);
1814 if(count($allowed)) {
1815 foreach($allowed as $a) {
1816 $pat = strtolower(trim($a));
1817 if(($fnmatch && fnmatch($pat,$domain)) || ($pat == $domain)) {
1826 // Format the like/dislike text for a profile item
1827 // $cnt = number of people who like/dislike the item
1828 // $arr = array of pre-linked names of likers/dislikers
1829 // $type = one of 'like, 'dislike'
1831 // returns formatted text
1833 if(! function_exists('format_like')) {
1834 function format_like($cnt,$arr,$type,$id) {
1837 $o .= (($type === 'like') ? sprintf( t('%s likes this.'), $arr[0]) : sprintf( t('%s doesn\'t like this.'), $arr[0])) . EOL ;
1839 $spanatts = 'class="fakelink" onclick="openClose(\'' . $type . 'list-' . $id . '\');"';
1840 $o .= (($type === 'like') ?
1841 sprintf( t('<span %1$s>%2$d people</span> like this.'), $spanatts, $cnt)
1843 sprintf( t('<span %1$s>%2$d people</span> don\'t like this.'), $spanatts, $cnt) );
1845 $total = count($arr);
1846 if($total >= MAX_LIKERS)
1847 $arr = array_slice($arr, 0, MAX_LIKERS - 1);
1848 if($total < MAX_LIKERS)
1849 $arr[count($arr)-1] = t('and') . ' ' . $arr[count($arr)-1];
1850 $str = implode(', ', $arr);
1851 if($total >= MAX_LIKERS)
1852 $str .= sprintf( t(', and %d other people'), $total - MAX_LIKERS );
1853 $str = (($type === 'like') ? sprintf( t('%s like this.'), $str) : sprintf( t('%s don\'t like this.'), $str));
1854 $o .= "\t" . '<div id="' . $type . 'list-' . $id . '" style="display: none;" >' . $str . '</div>';
1860 // wrapper to load a view template, checking for alternate
1861 // languages before falling back to the default
1863 if(! function_exists('load_view_file')) {
1864 function load_view_file($s) {
1870 if(file_exists("$d/$lang/$b"))
1871 return file_get_contents("$d/$lang/$b");
1872 return file_get_contents($s);
1875 // for html,xml parsing - let's say you've got
1876 // an attribute foobar="class1 class2 class3"
1877 // and you want to find out if it contains 'class3'.
1878 // you can't use a normal sub string search because you
1879 // might match 'notclass3' and a regex to do the job is
1880 // possible but a bit complicated.
1881 // pass the attribute string as $attr and the attribute you
1882 // are looking for as $s - returns true if found, otherwise false
1884 if(! function_exists('attribute_contains')) {
1885 function attribute_contains($attr,$s) {
1886 $a = explode(' ', $attr);
1887 if(count($a) && in_array($s,$a))
1892 if(! function_exists('logger')) {
1893 function logger($msg,$level = 0) {
1894 $debugging = get_config('system','debugging');
1895 $loglevel = intval(get_config('system','loglevel'));
1896 $logfile = get_config('system','logfile');
1898 if((! $debugging) || (! $logfile) || ($level > $loglevel))
1901 @file_put_contents($logfile, datetime_convert() . ':' . session_id() . ' ' . $msg . "\n", FILE_APPEND);
1906 if(! function_exists('activity_match')) {
1907 function activity_match($haystack,$needle) {
1908 if(($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle,NAMESPACE_ACTIVITY_SCHEMA)))
1914 // Pull out all #hashtags and @person tags from $s;
1915 // We also get @person@domain.com - which would make
1916 // the regex quite complicated as tags can also
1917 // end a sentence. So we'll run through our results
1918 // and strip the period from any tags which end with one.
1919 // Returns array of tags found, or empty array.
1922 if(! function_exists('get_tags')) {
1923 function get_tags($s) {
1926 // ignore anything in a code block
1928 $s = preg_replace('/\[code\](.*?)\[\/code\]/sm','',$s);
1930 if(preg_match_all('/([@#][^ \x0D\x0A,:?]+)([ \x0D\x0A,:?]|$)/',$s,$match)) {
1931 foreach($match[1] as $match) {
1932 if(strstr($match,"]")) {
1933 // we might be inside a bbcode color tag - leave it alone
1936 if(substr($match,-1,1) === '.')
1937 $ret[] = substr($match,0,-1);
1947 // quick and dirty quoted_printable encoding
1949 if(! function_exists('qp')) {
1951 return str_replace ("%","=",rawurlencode($s));
1955 if(! function_exists('like_puller')) {
1956 function like_puller($a,$item,&$arr,$mode) {
1960 $verb = (($mode === 'like') ? ACTIVITY_LIKE : ACTIVITY_DISLIKE);
1962 if((activity_match($item['verb'],$verb)) && ($item['id'] != $item['parent'])) {
1963 $url = $item['author-link'];
1964 if((local_user()) && (local_user() == $item['uid']) && ($item['network'] === 'dfrn') && (! $item['self']) && (link_compare($item['author-link'],$item['url']))) {
1965 $url = $a->get_baseurl() . '/redir/' . $item['contact-id'];
1966 $sparkle = ' class="sparkle" ';
1968 if(! ((isset($arr[$item['parent'] . '-l'])) && (is_array($arr[$item['parent'] . '-l']))))
1969 $arr[$item['parent'] . '-l'] = array();
1970 if(! isset($arr[$item['parent']]))
1971 $arr[$item['parent']] = 1;
1973 $arr[$item['parent']] ++;
1974 $arr[$item['parent'] . '-l'][] = '<a href="'. $url . '"'. $sparkle .'>' . $item['author-name'] . '</a>';
1979 if(! function_exists('get_mentions')) {
1980 function get_mentions($item) {
1982 if(! strlen($item['tag']))
1985 $arr = explode(',',$item['tag']);
1986 foreach($arr as $x) {
1988 if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
1989 $o .= "\t\t" . '<link rel="mentioned" href="' . $matches[1] . '" />' . "\r\n";
1990 $o .= "\t\t" . '<link rel="ostatus:attention" href="' . $matches[1] . '" />' . "\r\n";
1996 if(! function_exists('contact_block')) {
1997 function contact_block() {
2001 $shown = get_pconfig($a->profile['uid'],'system','display_friend_count');
2005 if((! is_array($a->profile)) || ($a->profile['hide-friends']))
2007 $r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0",
2008 intval($a->profile['uid'])
2011 $total = intval($r[0]['total']);
2014 $o .= '<h4 class="contact-h4">' . t('No contacts') . '</h4>';
2017 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0 ORDER BY RAND() LIMIT %d",
2018 intval($a->profile['uid']),
2022 $o .= '<h4 class="contact-h4">' . sprintf(tt('%d Contact','%d Contacts', $total),$total) . '</h4><div id="contact-block">';
2023 foreach($r as $rr) {
2024 $redirect_url = $a->get_baseurl() . '/redir/' . $rr['id'];
2025 if(local_user() && ($rr['uid'] == local_user())
2026 && ($rr['network'] === 'dfrn')) {
2027 $url = $redirect_url;
2028 $sparkle = ' sparkle';
2035 $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";
2037 $o .= '</div><div id="contact-block-end"></div>';
2038 $o .= '<div id="viewcontacts"><a id="viewcontacts-link" href="viewcontacts/' . $a->profile['nickname'] . '">' . t('View Contacts') . '</a></div>';
2042 $arr = array('contacts' => $r, 'output' => $o);
2044 call_hooks('contact_block_end', $arr);
2049 if(! function_exists('search')) {
2050 function search($s) {
2052 $o = '<div id="search-box">';
2053 $o .= '<form action="' . $a->get_baseurl() . '/search' . '" method="get" >';
2054 $o .= '<input type="text" name="search" id="search-text" value="' . $s .'" />';
2055 $o .= '<input type="submit" name="submit" id="search-submit" value="' . t('Search') . '" />';
2056 $o .= '</form></div>';
2060 if(! function_exists('valid_email')) {
2061 function valid_email($x){
2062 if(preg_match('/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/',$x))
2068 if(! function_exists('gravatar_img')) {
2069 function gravatar_img($email) {
2071 $opt = 'identicon'; // psuedo-random geometric pattern if not found
2073 $hash = md5(trim(strtolower($email)));
2075 $url = 'http://www.gravatar.com/avatar/' . $hash . '.jpg'
2076 . '?s=' . $size . '&d=' . $opt . '&r=' . $rating;
2078 logger('gravatar: ' . $email . ' ' . $url);
2082 if(! function_exists('aes_decrypt')) {
2083 function aes_decrypt($val,$ky)
2085 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2086 for($a=0;$a<strlen($ky);$a++)
2087 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2088 $mode = MCRYPT_MODE_ECB;
2089 $enc = MCRYPT_RIJNDAEL_128;
2090 $dec = @mcrypt_decrypt($enc, $key, $val, $mode, @mcrypt_create_iv( @mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM ) );
2091 return rtrim($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));
2095 if(! function_exists('aes_encrypt')) {
2096 function aes_encrypt($val,$ky)
2098 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2099 for($a=0;$a<strlen($ky);$a++)
2100 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2101 $mode=MCRYPT_MODE_ECB;
2102 $enc=MCRYPT_RIJNDAEL_128;
2103 $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
2104 return mcrypt_encrypt($enc, $key, $val, $mode, mcrypt_create_iv( mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM));
2112 * Replace naked text hyperlink with HTML formatted hyperlink
2116 if(! function_exists('linkify')) {
2117 function linkify($s) {
2118 $s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%\$\!\+]*)/", ' <a href="$1" target="external-link">$1</a>', $s);
2128 * Replaces text emoticons with graphical images
2130 * @Parameter: string $s
2135 if(! function_exists('smilies')) {
2136 function smilies($s) {
2140 array( '<3', '</3', '<\\3', ':-)', ';-)', ':-(', ':(', ':-P', ':-"', ':-x', ':-X', ':-D', '8-|', '8-O'),
2142 '<img src="' . $a->get_baseurl() . '/images/smiley-heart.gif" alt="<3" />',
2143 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="</3" />',
2144 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="<\\3" />',
2145 '<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":-)" />',
2146 '<img src="' . $a->get_baseurl() . '/images/smiley-wink.gif" alt=";-)" />',
2147 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":-(" />',
2148 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":(" />',
2149 '<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":-P" />',
2150 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-\"" />',
2151 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-x" />',
2152 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-X" />',
2153 '<img src="' . $a->get_baseurl() . '/images/smiley-laughing.gif" alt=":-D" />',
2154 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-|" />',
2155 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-O" />'
2162 * Function : profile_load
2164 * @parameter string $nickname
2165 * @parameter int $profile
2167 * Summary: Loads a profile into the page sidebar.
2168 * The function requires a writeable copy of the main App structure, and the nickname
2169 * of a registered local account.
2171 * If the viewer is an authenticated remote viewer, the profile displayed is the
2172 * one that has been configured for his/her viewing in the Contact manager.
2173 * Passing a non-zero profile ID can also allow a preview of a selected profile
2176 * Profile information is placed in the App structure for later retrieval.
2177 * Honours the owner's chosen theme for display.
2181 if(! function_exists('profile_load')) {
2182 function profile_load(&$a, $nickname, $profile = 0) {
2184 $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
2185 intval($_SESSION['visitor_id']));
2187 $profile = $r[0]['profile-id'];
2193 $profile_int = intval($profile);
2194 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2195 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2196 WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d LIMIT 1",
2198 intval($profile_int)
2202 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2203 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2204 WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 LIMIT 1",
2209 if(($r === false) || (! count($r))) {
2210 notice( t('No profile') . EOL );
2215 $a->profile = $r[0];
2218 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
2219 $_SESSION['theme'] = $a->profile['theme'];
2221 if(! (x($a->page,'aside')))
2222 $a->page['aside'] = '';
2224 $a->page['aside'] .= profile_sidebar($a->profile);
2225 $a->page['aside'] .= contact_block();
2233 * Function: profile_sidebar
2235 * Formats a profile for display in the sidebar.
2236 * It is very difficult to templatise the HTML completely
2237 * because of all the conditional logic.
2239 * @parameter: array $profile
2241 * Returns HTML string stuitable for sidebar inclusion
2242 * Exceptions: Returns empty string if passed $profile is wrong type or not populated
2247 if(! function_exists('profile_sidebar')) {
2248 function profile_sidebar($profile) {
2254 if((! is_array($profile)) && (! count($profile)))
2257 call_hooks('profile_sidebar_enter', $profile);
2259 $fullname = '<div class="fn">' . $profile['name'] . '</div>';
2261 $pdesc = '<div class="title">' . $profile['pdesc'] . '</div>';
2265 $photo = '<div id="profile-photo-wrapper"><img class="photo" src="' . $profile['photo'] . '" alt="' . $profile['name'] . '" /></div>';
2267 $connect = (($profile['uid'] != local_user()) ? '<li><a id="dfrn-request-link" href="dfrn_request/' . $profile['nickname'] . '">' . t('Connect') . '</a></li>' : '');
2269 if((x($profile,'address') == 1)
2270 || (x($profile,'locality') == 1)
2271 || (x($profile,'region') == 1)
2272 || (x($profile,'postal-code') == 1)
2273 || (x($profile,'country-name') == 1))
2277 $location .= '<div class="location"><span class="location-label">' . t('Location:') . '</span> <div class="adr">';
2278 $location .= ((x($profile,'address') == 1) ? '<div class="street-address">' . $profile['address'] . '</div>' : '');
2279 $location .= (((x($profile,'locality') == 1) || (x($profile,'region') == 1) || (x($profile,'postal-code') == 1))
2280 ? '<span class="city-state-zip"><span class="locality">' . $profile['locality'] . '</span>'
2281 . ((x($profile['locality']) == 1) ? t(', ') : '')
2282 . '<span class="region">' . $profile['region'] . '</span>'
2283 . ' <span class="postal-code">' . $profile['postal-code'] . '</span></span>' : '');
2284 $location .= ((x($profile,'country-name') == 1) ? ' <span class="country-name">' . $profile['country-name'] . '</span>' : '');
2285 $location .= '</div></div><div class="profile-clear"></div>';
2289 $gender = ((x($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>' : '');
2291 $pubkey = ((x($profile,'pubkey') == 1) ? '<div class="key" style="display:none;">' . $profile['pubkey'] . '</div>' : '');
2293 $marital = ((x($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>' : '');
2295 $homepage = ((x($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>' : '');
2297 $tpl = load_view_file('view/profile_vcard.tpl');
2299 $o .= replace_macros($tpl, array(
2300 '$fullname' => $fullname,
2304 '$connect' => $connect,
2305 '$location' => $location,
2306 '$gender' => $gender,
2307 '$pubkey' => $pubkey,
2308 '$marital' => $marital,
2309 '$homepage' => $homepage
2313 $arr = array('profile' => $profile, 'entry' => $o);
2315 call_hooks('profile_sidebar', $arr);
2321 if(! function_exists('register_hook')) {
2322 function register_hook($hook,$file,$function) {
2324 $r = q("SELECT * FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2332 $r = q("INSERT INTO `hook` (`hook`, `file`, `function`) VALUES ( '%s', '%s', '%s' ) ",
2340 if(! function_exists('unregister_hook')) {
2341 function unregister_hook($hook,$file,$function) {
2343 $r = q("DELETE FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2352 if(! function_exists('load_hooks')) {
2353 function load_hooks() {
2355 $a->hooks = array();
2356 $r = q("SELECT * FROM `hook` WHERE 1");
2358 foreach($r as $rr) {
2359 $a->hooks[] = array($rr['hook'], $rr['file'], $rr['function']);
2365 if(! function_exists('call_hooks')) {
2366 function call_hooks($name, &$data = null) {
2369 if(count($a->hooks)) {
2370 foreach($a->hooks as $hook) {
2371 if($hook[HOOK_HOOK] === $name) {
2372 @include_once($hook[HOOK_FILE]);
2373 if(function_exists($hook[HOOK_FUNCTION])) {
2374 $func = $hook[HOOK_FUNCTION];
2383 if(! function_exists('day_translate')) {
2384 function day_translate($s) {
2385 $ret = str_replace(array('Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'),
2386 array( t('Monday'), t('Tuesday'), t('Wednesday'), t('Thursday'), t('Friday'), t('Saturday'), t('Sunday')),
2389 $ret = str_replace(array('January','February','March','April','May','June','July','August','September','October','November','December'),
2390 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')),
2396 if(! function_exists('get_birthdays')) {
2397 function get_birthdays() {
2405 $bd_format = get_config('system','birthday_format');
2407 $bd_format = 'g A l F d' ; // 8 AM Friday January 18
2409 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
2410 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
2411 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
2412 ORDER BY `start` DESC ",
2413 intval(local_user()),
2414 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
2415 dbesc(datetime_convert('UTC','UTC','now'))
2418 if($r && count($r)) {
2421 if(strlen($rr['name']))
2424 $o .= '<div id="birthday-notice" class="birthday-notice fakelink" onclick=openClose(\'birthday-wrapper\'); >' . t('Birthday Reminders') . ' ' . '(' . $total . ')' . '</div>';
2425 $o .= '<div id="birthday-wrapper" style="display: none;" ><div id="birthday-title">' . t('Birthdays this week:') . '</div>';
2426 $o .= '<div id="birthday-adjust">' . t("\x28Adjusted for local time\x29") . '</div>';
2427 $o .= '<div id="birthday-title-end"></div>';
2429 foreach($r as $rr) {
2430 if(! strlen($rr['name']))
2432 $now = strtotime('now');
2433 $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
2435 $o .= '<div class="birthday-list" id="birthday-' . $rr['eid'] . '"><a class="sparkle" href="'
2436 . $a->get_baseurl() . '/redir/' . $rr['cid'] . '">' . $rr['name'] . '</a> '
2437 . day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $bd_format)) . (($today) ? ' ' . t('[today]') : '')
2441 $o .= '</div></div>';
2450 * Compare two URLs to see if they are the same, but ignore
2451 * slight but hopefully insignificant differences such as if one
2452 * is https and the other isn't, or if one is www.something and
2453 * the other isn't - and also ignore case differences.
2455 * Return true if the URLs match, otherwise false.
2459 if(! function_exists('link_compare')) {
2460 function link_compare($a,$b) {
2461 $a1 = str_replace(array('https:','//www.'), array('http:','//'), $a);
2462 $b1 = str_replace(array('https:','//www.'), array('http:','//'), $b);
2463 if(strcasecmp($a1,$b1) === 0)
2469 if(! function_exists('prepare_body')) {
2470 function prepare_body($item) {
2471 return prepare_text($item['body']);
2474 if(! function_exists('prepare_text')) {
2475 function prepare_text($text) {
2477 require_once('include/bbcode.php');
2479 $s = smilies(bbcode($text));
2486 * Wrap calls to proc_close(proc_open()) and call hook
2487 * so plugins can take part in process :)
2490 * $cmd program to run
2491 * next args are passed as $cmd command line
2493 * e.g.: proc_run("ls","-la","/tmp");
2495 * $cmd and string args are surrounded with ""
2498 if(! function_exists('proc_run')) {
2499 function proc_run($cmd){
2503 $args = func_get_args();
2504 call_hooks("proc_run", $args);
2506 if(count($args) && $args[0] === 'php')
2507 $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
2509 foreach ($args as $arg){
2510 $arg = escapeshellarg($arg);
2512 $cmdline = implode($args," ");
2513 proc_close(proc_open($cmdline." &",array(),$foo));
2517 * Return full URL to theme which is currently in effect.
2518 * Provide a sane default if nothing is chosen or the specified theme does not exist.
2521 if(! function_exists('current_theme_url')) {
2522 function current_theme_url() {
2524 $app_base_themes = array('duepuntozero', 'loozah');
2528 $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
2529 $theme_name = ((x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
2531 if($theme_name && file_exists('view/theme/' . $theme_name . '/style.css'))
2532 return($a->get_baseurl() . '/view/theme/' . $theme_name . '/style.css');
2534 foreach($app_base_themes as $t) {
2535 if(file_exists('view/theme/' . $t . '/style.css'))
2536 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
2539 $fallback = glob('view/theme/*/style.css');
2540 if(count($fallback))
2541 return($a->get_baseurl() . $fallback[0]);
2546 if(! function_exists('feed_birthday')) {
2547 function feed_birthday($uid,$tz) {
2551 * Determine the next birthday, but only if the birthday is published
2552 * in the default profile. We _could_ also look for a private profile that the
2553 * recipient can see, but somebody could get mad at us if they start getting
2554 * public birthday greetings when they haven't made this info public.
2556 * Assuming we are able to publish this info, we are then going to convert
2557 * the start time from the owner's timezone to UTC.
2559 * This will potentially solve the problem found with some social networks
2560 * where birthdays are converted to the viewer's timezone and salutations from
2561 * elsewhere in the world show up on the wrong day. We will convert it to the
2562 * viewer's timezone also, but first we are going to convert it from the birthday
2563 * person's timezone to GMT - so the viewer may find the birthday starting at
2564 * 6:00PM the day before, but that will correspond to midnight to the birthday person.
2570 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
2574 if($p && count($p)) {
2575 $tmp_dob = substr($p[0]['dob'],5);
2576 if(intval($tmp_dob)) {
2577 $y = datetime_convert($tz,$tz,'now','Y');
2578 $bd = $y . '-' . $tmp_dob . ' 00:00';
2579 $t_dob = strtotime($bd);
2580 $now = strtotime(datetime_convert($tz,$tz,'now'));
2582 $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
2583 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
2591 * return atom link elements for all of our hubs
2594 if(! function_exists('feed_hublinks')) {
2595 function feed_hublinks() {
2597 $hub = get_config('system','huburl');
2601 $hubs = explode(',', $hub);
2603 foreach($hubs as $h) {
2607 $hubxml .= '<link rel="hub" href="' . xmlify($h) . '" />' . "\n" ;
2614 /* return atom link elements for salmon endpoints */
2616 if(! function_exists('feed_salmonlinks')) {
2617 function feed_salmonlinks($nick) {
2621 $salmon = '<link rel="salmon" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2623 // old style links that status.net still needed as of 12/2010
2625 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-replies" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2626 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-mention" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2630 if(! function_exists('get_plink')) {
2631 function get_plink($item) {
2633 $plink = (((x($item,'plink')) && (! $item['private'])) ? '<div class="wall-item-links-wrapper"><a href="'
2634 . $item['plink'] . '" title="' . t('link to source') . '" target="external-link" ><img src="' . $a->get_baseurl() . '/images/remote-link.gif" alt="' . t('link to source') . '" /></a></div>' : '');
2638 if(! function_exists('unamp')) {
2639 function unamp($s) {
2640 return str_replace('&', '&', $s);
2643 if(! function_exists('extract_item_authors')) {
2644 function extract_item_authors($arr,$uid) {
2646 if((! $uid) || (! is_array($arr)) || (! count($arr)))
2649 foreach($arr as $rr) {
2650 if(! in_array("'" . dbesc($rr['author-link']) . "'",$urls))
2651 $urls[] = "'" . dbesc($rr['author-link']) . "'";
2654 // pre-quoted, don't put quotes on %s
2656 $r = q("SELECT `id`,`url` FROM `contact` WHERE `uid` = %d AND `url` IN ( %s ) AND `network` = 'dfrn' AND `self` = 0 AND `blocked` = 0 ",
2663 $ret[$rr['url']] = $rr['id'];