5 define ( 'BUILD_ID', 1039 );
6 define ( 'FRIENDIKA_VERSION', '2.10.0907' );
7 define ( 'DFRN_PROTOCOL_VERSION', '2.1' );
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 );
45 define ( 'REL_VIP', 1);
46 define ( 'REL_FAN', 2);
47 define ( 'REL_BUD', 3);
53 define ( 'HOOK_HOOK', 0);
54 define ( 'HOOK_FILE', 1);
55 define ( 'HOOK_FUNCTION', 2);
61 * PAGE_NORMAL is a typical personal profile account
62 * PAGE_SOAPBOX automatically approves all friend requests as REL_FAN, (readonly)
63 * PAGE_COMMUNITY automatically approves all friend requests as REL_FAN, but with
64 * write access to wall and comments (no email and not included in page owner's ACL lists)
65 * PAGE_FREELOVE automatically approves all friend requests as full friends (REL_BUD).
69 define ( 'PAGE_NORMAL', 0 );
70 define ( 'PAGE_SOAPBOX', 1 );
71 define ( 'PAGE_COMMUNITY', 2 );
72 define ( 'PAGE_FREELOVE', 3 );
75 * Maximum number of "people who like (or don't like) this" that we will list by name
78 define ( 'MAX_LIKERS', 75);
81 * email notification options
84 define ( 'NOTIFY_INTRO', 0x0001 );
85 define ( 'NOTIFY_CONFIRM', 0x0002 );
86 define ( 'NOTIFY_WALL', 0x0004 );
87 define ( 'NOTIFY_COMMENT', 0x0008 );
88 define ( 'NOTIFY_MAIL', 0x0010 );
91 * various namespaces we may need to parse
94 define ( 'NAMESPACE_DFRN' , 'http://purl.org/macgirvin/dfrn/1.0' );
95 define ( 'NAMESPACE_THREAD' , 'http://purl.org/syndication/thread/1.0' );
96 define ( 'NAMESPACE_TOMB' , 'http://purl.org/atompub/tombstones/1.0' );
97 define ( 'NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/' );
98 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
99 define ( 'NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia' );
100 define ( 'NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env' );
101 define ( 'NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe' );
102 define ( 'NAMESPACE_GEORSS', 'http://www.georss.org/georss' );
103 define ( 'NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0' );
104 define ( 'NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from' );
107 * activity stream defines
110 define ( 'ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like' );
111 define ( 'ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike' );
112 define ( 'ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart' );
114 define ( 'ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
115 define ( 'ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
116 define ( 'ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
117 define ( 'ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post' );
118 define ( 'ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update' );
119 define ( 'ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
121 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
122 define ( 'ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note' );
123 define ( 'ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person' );
124 define ( 'ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
125 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
126 define ( 'ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
129 * item weight for query ordering
132 define ( 'GRAVITY_PARENT', 0);
133 define ( 'GRAVITY_LIKE', 3);
134 define ( 'GRAVITY_COMMENT', 6);
138 * Reverse the effect of magic_quotes_gpc if it is enabled.
139 * Please disable magic_quotes_gpc so we don't have to do this.
140 * See http://php.net/manual/en/security.magicquotes.disabling.php
144 if (get_magic_quotes_gpc()) {
145 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
146 while (list($key, $val) = each($process)) {
147 foreach ($val as $k => $v) {
148 unset($process[$key][$k]);
150 $process[$key][stripslashes($k)] = $v;
151 $process[] = &$process[$key][stripslashes($k)];
153 $process[$key][stripslashes($k)] = stripslashes($v);
165 * Our main application structure for the life of this page
166 * Primarily deals with the URL that got us here
167 * and tries to make some sense of it, and
168 * stores our page contents and config storage
169 * and anything else that might need to be passed around
170 * before we spit the page out.
174 if(! class_exists('App')) {
177 public $module_loaded = false;
178 public $query_string;
187 public $error = false;
197 public $interactive = true;
207 private $curl_headers;
209 function __construct() {
211 $this->config = array();
212 $this->page = array();
213 $this->pager= array();
215 $this->query_string = '';
217 $this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'])) ? 'https' : 'http' );
219 if(x($_SERVER,'SERVER_NAME')) {
220 $this->hostname = $_SERVER['SERVER_NAME'];
223 * Figure out if we are running at the top of a domain
224 * or in a sub-directory and adjust accordingly
227 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
228 if(isset($path) && strlen($path) && ($path != $this->path))
232 set_include_path("include/$this->hostname" . PATH_SEPARATOR . 'include' . PATH_SEPARATOR . '.' );
234 if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=")
235 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
237 $this->cmd = trim($_GET['q'],'/\\');
243 * Break the URL path into C style argc/argv style arguments for our
244 * modules. Given "http://example.com/module/arg1/arg2", $this->argc
245 * will be 3 (integer) and $this->argv will contain:
251 * There will always be one argument. If provided a naked domain
252 * URL, $this->argv[0] is set to "home".
256 $this->argv = explode('/',$this->cmd);
257 $this->argc = count($this->argv);
258 if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
259 $this->module = $this->argv[0];
262 $this->module = 'home';
266 * Special handling for the webfinger/lrdd host XRD file
267 * Just spit out the contents and exit.
270 if($this->cmd === '.well-known/host-meta') {
271 require_once('include/hostxrd.php');
272 hostxrd($this->hostname);
277 * See if there is any page number information, and initialise
281 $this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1);
282 $this->pager['itemspage'] = 50;
283 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
284 $this->pager['total'] = 0;
287 function get_baseurl($ssl = false) {
289 $scheme = $this->scheme;
291 if(x($this->config,'ssl_policy')) {
292 if(($ssl) || ($this->config['ssl_policy'] == SSL_POLICY_FULL))
294 if(($this->config['ssl_policy'] == SSL_POLICY_SELFSIGN) && (local_user() || x($_POST,'auth-params')))
298 $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
299 return $this->baseurl;
302 function set_baseurl($url) {
303 $parsed = parse_url($url);
305 $this->baseurl = $url;
308 $this->scheme = $parsed['scheme'];
310 $this->hostname = $parsed['host'];
311 if(x($parsed,'port'))
312 $this->hostname .= ':' . $parsed['port'];
313 if(x($parsed,'path'))
314 $this->path = trim($parsed['path'],'\\/');
319 function get_hostname() {
320 return $this->hostname;
323 function set_hostname($h) {
324 $this->hostname = $h;
327 function set_path($p) {
328 $this->path = trim(trim($p),'/');
331 function get_path() {
335 function set_pager_total($n) {
336 $this->pager['total'] = intval($n);
339 function set_pager_itemspage($n) {
340 $this->pager['itemspage'] = intval($n);
341 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
345 function init_pagehead() {
346 $this->page['title'] = $this->config['sitename'];
347 $tpl = load_view_file("view/head.tpl");
348 $this->page['htmlhead'] = replace_macros($tpl,array(
349 '$baseurl' => $this->get_baseurl() . '/',
350 '$generator' => 'Friendika' . ' ' . FRIENDIKA_VERSION
354 function set_curl_code($code) {
355 $this->curl_code = $code;
358 function get_curl_code() {
359 return $this->curl_code;
362 function set_curl_headers($headers) {
363 $this->curl_headers = $headers;
366 function get_curl_headers() {
367 return $this->curl_headers;
373 // retrieve the App structure
374 // useful in functions which require it but don't get it passed to them
376 if(! function_exists('get_app')) {
383 // Multi-purpose function to check variable state.
384 // Usage: x($var) or $x($array,'key')
385 // returns false if variable/key is not set
386 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
387 // e.g. x('') or x(0) returns 0;
389 if(! function_exists('x')) {
390 function x($s,$k = NULL) {
392 if((is_array($s)) && (array_key_exists($k,$s))) {
410 // called from db initialisation if db is dead.
412 if(! function_exists('system_unavailable')) {
413 function system_unavailable() {
414 include('system_unavailable.php');
419 // Primarily involved with database upgrade, but also sets the
420 // base url for use in cmdline programs which don't have
421 // $_SERVER variables, and synchronising the state of installed plugins.
424 if(! function_exists('check_config')) {
425 function check_config(&$a) {
428 load_config('system');
430 if(! x($_SERVER,'SERVER_NAME'))
433 $build = get_config('system','build');
435 $build = set_config('system','build',BUILD_ID);
437 $url = get_config('system','url');
439 $url = set_config('system','url',$a->get_baseurl());
441 if($build != BUILD_ID) {
442 $stored = intval($build);
443 $current = intval(BUILD_ID);
444 if(($stored < $current) && file_exists('update.php')) {
445 // We're reporting a different version than what is currently installed.
446 // Run any existing update scripts to bring the database up to current.
448 require_once('update.php');
449 for($x = $stored; $x < $current; $x ++) {
450 if(function_exists('update_' . $x)) {
451 $func = 'update_' . $x;
455 set_config('system','build', BUILD_ID);
461 * Synchronise plugins:
463 * $a->config['system']['addon'] contains a comma-separated list of names
464 * of plugins/addons which are used on this system.
465 * Go through the database list of already installed addons, and if we have
466 * an entry, but it isn't in the config list, call the uninstall procedure
467 * and mark it uninstalled in the database (for now we'll remove it).
468 * Then go through the config list and if we have a plugin that isn't installed,
469 * call the install procedure and add it to the database.
473 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
477 $installed = array();
479 $plugins = get_config('system','addon');
480 $plugins_arr = array();
483 $plugins_arr = explode(',',str_replace(' ', '',$plugins));
485 $a->plugins = $plugins_arr;
487 $installed_arr = array();
489 if(count($installed)) {
490 foreach($installed as $i) {
491 if(! in_array($i['name'],$plugins_arr)) {
492 logger("Addons: uninstalling " . $i['name']);
493 q("DELETE FROM `addon` WHERE `id` = %d LIMIT 1",
497 @include_once('addon/' . $i['name'] . '/' . $i['name'] . '.php');
498 if(function_exists($i['name'] . '_uninstall')) {
499 $func = $i['name'] . '_uninstall';
504 $installed_arr[] = $i['name'];
508 if(count($plugins_arr)) {
509 foreach($plugins_arr as $p) {
510 if(! in_array($p,$installed_arr)) {
511 logger("Addons: installing " . $p);
512 @include_once('addon/' . $p . '/' . $p . '.php');
513 if(function_exists($p . '_install')) {
514 $func = $p . '_install';
516 $r = q("INSERT INTO `addon` (`name`, `installed`) VALUES ( '%s', 1 ) ",
529 // This is our template processor.
530 // $s is the string requiring macro substitution.
531 // $r is an array of key value pairs (search => replace)
532 // returns substituted string.
533 // WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other.
534 // For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing,
535 // depending on the order in which they were declared in the array.
537 if(! function_exists('replace_macros')) {
538 function replace_macros($s,$r) {
543 if(is_array($r) && count($r)) {
544 foreach ($r as $k => $v ) {
549 return str_replace($search,$replace,$s);
553 // load string translation table for alternate language
555 if(! function_exists('load_translation_table')) {
556 function load_translation_table($lang) {
559 if(file_exists("view/$lang/strings.php"))
560 include("view/$lang/strings.php");
563 // translate string if translation exists
565 if(! function_exists('t')) {
570 if(x($a->strings,$s))
571 return $a->strings[$s];
575 // curl wrapper. If binary flag is true, return binary
578 if(! function_exists('fetch_url')) {
579 function fetch_url($url,$binary = false, &$redirects = 0) {
583 $ch = curl_init($url);
584 if(($redirects > 8) || (! $ch))
587 curl_setopt($ch, CURLOPT_HEADER, true);
588 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
591 $curl_time = intval(get_config('system','curl_timeout'));
592 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
594 // by default we will allow self-signed certs
595 // but you can override this
597 $check_cert = get_config('system','verifyssl');
598 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
600 $prx = get_config('system','proxy');
602 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
603 curl_setopt($ch, CURLOPT_PROXY, $prx);
604 $prxusr = get_config('system','proxyuser');
606 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
609 curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
611 $a->set_curl_code(0);
613 // don't let curl abort the entire application
614 // if it throws any errors.
616 $s = @curl_exec($ch);
618 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
619 $header = substr($s,0,strpos($s,"\r\n\r\n"));
620 if(stristr($header,'100') && (strlen($header) < 30)) {
621 // 100 Continue has two headers, get the real one
622 $s = substr($s,strlen($header)+4);
623 $header = substr($s,0,strpos($s,"\r\n\r\n"));
625 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
627 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
628 $url = trim(array_pop($matches));
629 $url_parsed = parse_url($url);
630 if (isset($url_parsed)) {
632 return fetch_url($url,$binary,$redirects);
635 $a->set_curl_code($http_code);
637 $body = substr($s,strlen($header)+4);
639 /* one more try to make sure there are no more headers */
641 if(strpos($body,'HTTP/') === 0) {
642 $header = substr($body,0,strpos($body,"\r\n\r\n"));
643 $body = substr($body,strlen($header)+4);
646 $a->set_curl_headers($header);
652 // post request to $url. $params is an array of post variables.
654 if(! function_exists('post_url')) {
655 function post_url($url,$params, $headers = null, &$redirects = 0) {
657 $ch = curl_init($url);
658 if(($redirects > 8) || (! $ch))
661 curl_setopt($ch, CURLOPT_HEADER, true);
662 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
663 curl_setopt($ch, CURLOPT_POST,1);
664 curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
666 $curl_time = intval(get_config('system','curl_timeout'));
667 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
669 if(is_array($headers))
670 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
672 $check_cert = get_config('system','verifyssl');
673 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
674 $prx = get_config('system','proxy');
676 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
677 curl_setopt($ch, CURLOPT_PROXY, $prx);
678 $prxusr = get_config('system','proxyuser');
680 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
683 $a->set_curl_code(0);
685 // don't let curl abort the entire application
686 // if it throws any errors.
688 $s = @curl_exec($ch);
690 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
691 $header = substr($s,0,strpos($s,"\r\n\r\n"));
692 if(stristr($header,'100') && (strlen($header) < 30)) {
693 // 100 Continue has two headers, get the real one
694 $s = substr($s,strlen($header)+4);
695 $header = substr($s,0,strpos($s,"\r\n\r\n"));
697 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
699 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
700 $url = trim(array_pop($matches));
701 $url_parsed = parse_url($url);
702 if (isset($url_parsed)) {
704 return post_url($url,$binary,$headers,$redirects);
707 $a->set_curl_code($http_code);
708 $body = substr($s,strlen($header)+4);
710 /* one more try to make sure there are no more headers */
712 if(strpos($body,'HTTP/') === 0) {
713 $header = substr($body,0,strpos($body,"\r\n\r\n"));
714 $body = substr($body,strlen($header)+4);
717 $a->set_curl_headers($header);
723 // random hash, 64 chars
725 if(! function_exists('random_string')) {
726 function random_string() {
727 return(hash('sha256',uniqid(rand(),true)));
731 * This is our primary input filter.
733 * The high bit hack only involved some old IE browser, forget which (IE5/Mac?)
734 * that had an XSS attack vector due to stripping the high-bit on an 8-bit character
735 * after cleansing, and angle chars with the high bit set could get through as markup.
737 * This is now disabled because it was interfering with some legitimate unicode sequences
738 * and hopefully there aren't a lot of those browsers left.
740 * Use this on any text input where angle chars are not valid or permitted
741 * They will be replaced with safer brackets. This may be filtered further
742 * if these are not allowed either.
746 if(! function_exists('notags')) {
747 function notags($string) {
749 return(str_replace(array("<",">"), array('[',']'), $string));
751 // High-bit filter no longer used
752 // return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string));
755 // use this on "body" or "content" input where angle chars shouldn't be removed,
756 // and allow them to be safely displayed.
758 if(! function_exists('escape_tags')) {
759 function escape_tags($string) {
761 return(htmlspecialchars($string));
764 // wrapper for adding a login box. If $register == true provide a registration
765 // link. This will most always depend on the value of $a->config['register_policy'].
766 // returns the complete html for inserting into the page
768 if(! function_exists('login')) {
769 function login($register = false) {
771 $register_html = (($register) ? load_view_file("view/register-link.tpl") : "");
773 $noid = get_config('system','no_openid');
775 $classname = 'no-openid';
776 $namelabel = t('Nickname or Email address: ');
777 $passlabel = t('Password: ');
781 $classname = 'openid';
782 $namelabel = t('Nickname/Email/OpenID: ');
783 $passlabel = t("Password \x28if not OpenID\x29: ");
786 $lostpass = t('Forgot your password?');
787 $lostlink = t('Password Reset');
790 $tpl = load_view_file("view/logout.tpl");
793 $tpl = load_view_file("view/login.tpl");
797 $o = replace_macros($tpl,array(
798 '$register_html' => $register_html,
799 '$classname' => $classname,
800 '$namelabel' => $namelabel,
801 '$passlabel' => $passlabel,
803 '$lostpass' => $lostpass,
804 '$lostlink' => $lostlink
810 // generate a string that's random, but usually pronounceable.
811 // used to generate initial passwords
813 if(! function_exists('autoname')) {
814 function autoname($len) {
816 $vowels = array('a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u');
817 if(mt_rand(0,5) == 4)
835 's','sc','sh','sm','sp','st',
843 $midcons = array('ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
844 'nd','ng','nk','nt','rn','rp','rt');
846 $noend = array('bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
847 'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh');
849 $start = mt_rand(0,2);
857 for ($x = 0; $x < $len; $x ++) {
858 $r = mt_rand(0,count($table) - 1);
861 if($table == $vowels)
862 $table = array_merge($cons,$midcons);
868 $word = substr($word,0,$len);
870 foreach($noend as $noe) {
871 if((strlen($word) > 2) && (substr($word,-2) == $noe)) {
872 $word = substr($word,0,-1);
876 if(substr($word,-1) == 'q')
877 $word = substr($word,0,-1);
881 // Used to end the current process, after saving session state.
883 if(! function_exists('killme')) {
885 session_write_close();
889 // redirect to another URL and terminate this process.
891 if(! function_exists('goaway')) {
892 function goaway($s) {
893 header("Location: $s");
897 // Generic XML return
898 // Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
899 // of $st and an optional text <message> of $message and terminates the current process.
901 if(! function_exists('xml_status')) {
902 function xml_status($st, $message = '') {
904 $xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
907 logger('xml_status returning non_zero: ' . $st . " message=" . $message);
909 header( "Content-type: text/xml" );
910 echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
911 echo "<result>\r\n\t<status>$st</status>\r\n$xml_message</result>\r\n";
915 // Returns the uid of locally logged in user or false.
917 if(! function_exists('local_user')) {
918 function local_user() {
919 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
920 return intval($_SESSION['uid']);
924 // Returns contact id of authenticated site visitor or false
926 if(! function_exists('remote_user')) {
927 function remote_user() {
928 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
929 return intval($_SESSION['visitor_id']);
933 // contents of $s are displayed prominently on the page the next time
934 // a page is loaded. Usually used for errors or alerts.
936 if(! function_exists('notice')) {
937 function notice($s) {
940 $_SESSION['sysmsg'] .= $s;
943 // wrapper around config to limit the text length of an incoming message
945 if(! function_exists('get_max_import_size')) {
946 function get_max_import_size() {
948 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
952 // escape text ($str) for XML transport
953 // returns escaped text.
955 if(! function_exists('xmlify')) {
956 function xmlify($str) {
959 for($x = 0; $x < strlen($str); $x ++) {
989 $buffer = trim($buffer);
994 // pass xml escaped text ($s), returns unescaped text
996 if(! function_exists('unxmlify')) {
997 function unxmlify($s) {
998 $ret = str_replace('&','&', $s);
999 $ret = str_replace(array('<','>','"','''),array('<','>','"',"'"),$ret);
1003 // convenience wrapper, reverse the operation "bin2hex"
1005 if(! function_exists('hex2bin')) {
1006 function hex2bin($s) {
1007 if(! ctype_xdigit($s)) {
1008 logger('hex2bin: illegal input: ' . print_r(debug_backtrace(), true));
1012 return(pack("H*",$s));
1015 // Automatic pagination.
1016 // To use, get the count of total items.
1017 // Then call $a->set_pager_total($number_items);
1018 // Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page
1019 // Then call paginate($a) after the end of the display loop to insert the pager block on the page
1020 // (assuming there are enough items to paginate).
1021 // When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage']
1022 // will limit the results to the correct items for the current page.
1023 // The actual page handling is then accomplished at the application layer.
1025 if(! function_exists('paginate')) {
1026 function paginate(&$a) {
1028 $stripped = preg_replace('/(&page=[0-9]*)/','',$a->query_string);
1029 $stripped = str_replace('q=','',$stripped);
1030 $stripped = trim($stripped,'/');
1031 $url = $a->get_baseurl() . '/' . $stripped;
1034 if($a->pager['total'] > $a->pager['itemspage']) {
1035 $o .= '<div class="pager">';
1036 if($a->pager['page'] != 1)
1037 $o .= '<span class="pager_prev">'."<a href=\"$url".'&page='.($a->pager['page'] - 1).'">' . t('prev') . '</a></span> ';
1039 $o .= "<span class=\"pager_first\"><a href=\"$url"."&page=1\">" . t('first') . "</a></span> ";
1041 $numpages = $a->pager['total'] / $a->pager['itemspage'];
1044 $numstop = $numpages;
1046 if($numpages > 14) {
1047 $numstart = (($pagenum > 7) ? ($pagenum - 7) : 1);
1048 $numstop = (($pagenum > ($numpages - 7)) ? $numpages : ($numstart + 14));
1051 for($i = $numstart; $i <= $numstop; $i++){
1052 if($i == $a->pager['page'])
1053 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1055 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1059 if(($a->pager['total'] % $a->pager['itemspage']) != 0) {
1060 if($i == $a->pager['page'])
1061 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1063 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1067 $lastpage = (($numpages > intval($numpages)) ? intval($numpages)+1 : $numpages);
1068 $o .= "<span class=\"pager_last\"><a href=\"$url"."&page=$lastpage\">" . t('last') . "</a></span> ";
1070 if(($a->pager['total'] - ($a->pager['itemspage'] * $a->pager['page'])) > 0)
1071 $o .= '<span class="pager_next">'."<a href=\"$url"."&page=".($a->pager['page'] + 1).'">' . t('next') . '</a></span>';
1072 $o .= '</div>'."\r\n";
1077 // Turn user/group ACLs stored as angle bracketed text into arrays
1079 if(! function_exists('expand_acl')) {
1080 function expand_acl($s) {
1081 // turn string array of angle-bracketed elements into numeric array
1082 // e.g. "<1><2><3>" => array(1,2,3);
1086 $t = str_replace('<','',$s);
1087 $a = explode('>',$t);
1088 foreach($a as $aa) {
1090 $ret[] = intval($aa);
1096 // Used to wrap ACL elements in angle brackets for storage
1098 if(! function_exists('sanitise_acl')) {
1099 function sanitise_acl(&$item) {
1101 $item = '<' . intval(notags(trim($item))) . '>';
1106 // retrieve a "family" of config variables from database to cached storage
1108 if(! function_exists('load_config')) {
1109 function load_config($family) {
1111 $r = q("SELECT * FROM `config` WHERE `cat` = '%s'",
1115 foreach($r as $rr) {
1117 $a->config[$family][$k] = $rr['v'];
1122 // get a particular config variable given the family name
1123 // and key. Returns false if not set.
1124 // $instore is only used by the set_config function
1125 // to determine if the key already exists in the DB
1126 // If a key is found in the DB but doesn't exist in
1127 // local config cache, pull it into the cache so we don't have
1128 // to hit the DB again for this item.
1130 if(! function_exists('get_config')) {
1131 function get_config($family, $key, $instore = false) {
1136 if(isset($a->config[$family][$key])) {
1137 if($a->config[$family][$key] === '!<unset>!') {
1140 return $a->config[$family][$key];
1143 $ret = q("SELECT `v` FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1148 $a->config[$family][$key] = $ret[0]['v'];
1149 return $ret[0]['v'];
1152 $a->config[$family][$key] = '!<unset>!';
1157 // Store a config value ($value) in the category ($family)
1158 // under the key ($key)
1159 // Return the value, or false if the database update failed
1161 if(! function_exists('set_config')) {
1162 function set_config($family,$key,$value) {
1166 if(get_config($family,$key,true) === false) {
1167 $ret = q("INSERT INTO `config` ( `cat`, `k`, `v` ) VALUES ( '%s', '%s', '%s' ) ",
1176 $ret = q("UPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1182 $a->config[$family][$key] = $value;
1190 if(! function_exists('load_pconfig')) {
1191 function load_pconfig($uid,$family) {
1193 $r = q("SELECT * FROM `pconfig` WHERE `cat` = '%s' AND `uid` = %d",
1198 foreach($r as $rr) {
1200 $a->config[$uid][$family][$k] = $rr['v'];
1207 if(! function_exists('get_pconfig')) {
1208 function get_pconfig($uid,$family, $key, $instore = false) {
1213 if(isset($a->config[$uid][$family][$key])) {
1214 if($a->config[$uid][$family][$key] === '!<unset>!') {
1217 return $a->config[$uid][$family][$key];
1221 $ret = q("SELECT `v` FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1228 $a->config[$uid][$family][$key] = $ret[0]['v'];
1229 return $ret[0]['v'];
1232 $a->config[$uid][$family][$key] = '!<unset>!';
1237 if(! function_exists('del_config')) {
1238 function del_config($family,$key) {
1241 if(x($a->config[$family],$key))
1242 unset($a->config[$family][$key]);
1243 $ret = q("DELETE FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1252 // Same as above functions except these are for personal config storage and take an
1253 // additional $uid argument.
1255 if(! function_exists('set_pconfig')) {
1256 function set_pconfig($uid,$family,$key,$value) {
1260 if(get_pconfig($uid,$family,$key,true) === false) {
1261 $ret = q("INSERT INTO `pconfig` ( `uid`, `cat`, `k`, `v` ) VALUES ( %d, '%s', '%s', '%s' ) ",
1271 $ret = q("UPDATE `pconfig` SET `v` = '%s' WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1278 $a->config[$uid][$family][$key] = $value;
1285 if(! function_exists('del_pconfig')) {
1286 function del_pconfig($uid,$family,$key) {
1289 if(x($a->config[$uid][$family],$key))
1290 unset($a->config[$uid][$family][$key]);
1291 $ret = q("DELETE FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1300 // convert an XML document to a normalised, case-corrected array
1301 // used by webfinger
1303 if(! function_exists('convert_xml_element_to_array')) {
1304 function convert_xml_element_to_array($xml_element, &$recursion_depth=0) {
1306 // If we're getting too deep, bail out
1307 if ($recursion_depth > 512) {
1311 if (!is_string($xml_element) &&
1312 !is_array($xml_element) &&
1313 (get_class($xml_element) == 'SimpleXMLElement')) {
1314 $xml_element_copy = $xml_element;
1315 $xml_element = get_object_vars($xml_element);
1318 if (is_array($xml_element)) {
1319 $result_array = array();
1320 if (count($xml_element) <= 0) {
1321 return (trim(strval($xml_element_copy)));
1324 foreach($xml_element as $key=>$value) {
1327 $result_array[strtolower($key)] =
1328 convert_xml_element_to_array($value, $recursion_depth);
1331 if ($recursion_depth == 0) {
1332 $temp_array = $result_array;
1333 $result_array = array(
1334 strtolower($xml_element_copy->getName()) => $temp_array,
1338 return ($result_array);
1341 return (trim(strval($xml_element)));
1345 // Given an email style address, perform webfinger lookup and
1346 // return the resulting DFRN profile URL, or if no DFRN profile URL
1347 // is located, returns an OStatus subscription template (prefixed
1348 // with the string 'stat:' to identify it as on OStatus template).
1349 // If this isn't an email style address just return $s.
1350 // Return an empty string if email-style addresses but webfinger fails,
1351 // or if the resultant personal XRD doesn't contain a supported
1352 // subscription/friend-request attribute.
1354 if(! function_exists('webfinger_dfrn')) {
1355 function webfinger_dfrn($s) {
1356 if(! strstr($s,'@')) {
1359 $links = webfinger($s);
1360 logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA);
1362 foreach($links as $link)
1363 if($link['@attributes']['rel'] === NAMESPACE_DFRN)
1364 return $link['@attributes']['href'];
1365 foreach($links as $link)
1366 if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB)
1367 return 'stat:' . $link['@attributes']['template'];
1372 // Given an email style address, perform webfinger lookup and
1373 // return the array of link attributes from the personal XRD file.
1374 // On error/failure return an empty array.
1377 if(! function_exists('webfinger')) {
1378 function webfinger($s) {
1380 if(strstr($s,'@')) {
1381 $host = substr($s,strpos($s,'@') + 1);
1384 $tpl = fetch_lrdd_template($host);
1385 logger('webfinger: lrdd template: ' . $tpl);
1387 $pxrd = str_replace('{uri}', urlencode('acct:' . $s), $tpl);
1388 logger('webfinger: pxrd: ' . $pxrd);
1389 $links = fetch_xrd_links($pxrd);
1390 if(! count($links)) {
1391 // try with double slashes
1392 $pxrd = str_replace('{uri}', urlencode('acct://' . $s), $tpl);
1393 logger('webfinger: pxrd: ' . $pxrd);
1394 $links = fetch_xrd_links($pxrd);
1402 if(! function_exists('lrdd')) {
1403 function lrdd($uri) {
1407 // default priority is host priority, host-meta first
1411 // All we have is an email address. Resource-priority is irrelevant
1412 // because our URI isn't directly resolvable.
1414 if(strstr($uri,'@')) {
1415 return(webfinger($uri));
1418 // get the host meta file
1420 $host = parse_url($uri);
1423 $url = ((x($host,'scheme')) ? $host['scheme'] : 'http') . '://';
1424 $url .= $host['host'] . '/.well-known/host-meta' ;
1429 logger('lrdd: constructed url: ' . $url);
1431 $xml = fetch_url($url);
1432 $headers = $a->get_curl_headers();
1437 logger('lrdd: host_meta: ' . $xml, LOGGER_DATA);
1438 $h = simplexml_load_string($xml);
1439 $arr = convert_xml_element_to_array($h);
1441 if(isset($arr['xrd']['property'])) {
1442 $property = $arr['crd']['property'];
1443 if(! isset($property[0]))
1444 $properties = array($property);
1446 $properties = $property;
1447 foreach($properties as $prop)
1448 if((string) $prop['@attributes'] === 'http://lrdd.net/priority/resource')
1449 $priority = 'resource';
1452 // save the links in case we need them
1456 if(isset($arr['xrd']['link'])) {
1457 $link = $arr['xrd']['link'];
1458 if(! isset($link[0]))
1459 $links = array($link);
1464 // do we have a template or href?
1467 foreach($links as $link) {
1468 if($link['@attributes']['rel'] && attribute_contains($link['@attributes']['rel'],'lrdd')) {
1469 if(x($link['@attributes'],'template'))
1470 $tpl = $link['@attributes']['template'];
1471 elseif(x($link['@attributes'],'href'))
1472 $href = $link['@attributes']['href'];
1477 if((! isset($tpl)) || (! strpos($tpl,'{uri}')))
1480 if($priority === 'host') {
1482 $pxrd = str_replace('{uri}', urlencode($uri), $tpl);
1483 elseif(isset($href))
1486 logger('lrdd: (host priority) pxrd: ' . $pxrd);
1487 $links = fetch_xrd_links($pxrd);
1491 $lines = explode("\n",$headers);
1493 foreach($lines as $line) {
1494 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1495 return(fetch_xrd_links($matches[1]));
1503 // priority 'resource'
1506 $html = fetch_url($uri);
1507 $headers = $a->get_curl_headers();
1508 logger('lrdd: headers=' . $headers, LOGGER_DEBUG);
1510 require_once('library/HTML5/Parser.php');
1511 $dom = @HTML5_Parser::parse($html);
1514 $items = $dom->getElementsByTagName('link');
1515 foreach($items as $item) {
1516 $x = $item->getAttribute('rel');
1518 $pagelink = $item->getAttribute('href');
1524 if(isset($pagelink))
1525 return(fetch_xrd_links($pagelink));
1527 // next look in HTTP headers
1529 $lines = explode("\n",$headers);
1531 foreach($lines as $line) {
1532 // TODO alter the following regex to support multiple relations (space separated)
1533 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1534 $pagelink = $matches[1];
1537 // don't try and run feeds through the html5 parser
1538 if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml'))))
1540 if(stristr($html,'<rss') || stristr($html,'<feed'))
1545 if(isset($pagelink))
1546 return(fetch_xrd_links($pagelink));
1548 // If we haven't found any links, return the host xrd links (which we have already fetched)
1559 // Given a host name, locate the LRDD template from that
1560 // host. Returns the LRDD template or an empty string on
1563 if(! function_exists('fetch_lrdd_template')) {
1564 function fetch_lrdd_template($host) {
1566 $url = 'http://' . $host . '/.well-known/host-meta' ;
1567 $links = fetch_xrd_links($url);
1568 logger('template: ' . print_r($links,true));
1570 foreach($links as $link)
1571 if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd')
1572 $tpl = $link['@attributes']['template'];
1574 if(! strpos($tpl,'{uri}'))
1579 // Given a URL, retrieve the page as an XRD document.
1580 // Return an array of links.
1581 // on error/failure return empty array.
1583 if(! function_exists('fetch_xrd_links')) {
1584 function fetch_xrd_links($url) {
1587 $xml = fetch_url($url);
1591 logger('fetch_xrd_links: ' . $xml, LOGGER_DATA);
1592 $h = simplexml_load_string($xml);
1593 $arr = convert_xml_element_to_array($h);
1597 if(isset($arr['xrd']['link'])) {
1598 $link = $arr['xrd']['link'];
1599 if(! isset($link[0]))
1600 $links = array($link);
1604 if(isset($arr['xrd']['alias'])) {
1605 $alias = $arr['xrd']['alias'];
1606 if(! isset($alias[0]))
1607 $aliases = array($alias);
1610 foreach($aliases as $alias) {
1611 $links[]['@attributes'] = array('rel' => 'alias' , 'href' => $alias);
1615 logger('fetch_xrd_links: ' . print_r($links,true), LOGGER_DATA);
1621 // Convert an ACL array to a storable string
1623 if(! function_exists('perms2str')) {
1624 function perms2str($p) {
1627 if(is_array($tmp)) {
1628 array_walk($tmp,'sanitise_acl');
1629 $ret = implode('',$tmp);
1634 // generate a guaranteed unique (for this domain) item ID for ATOM
1635 // safe from birthday paradox
1637 if(! function_exists('item_new_uri')) {
1638 function item_new_uri($hostname,$uid) {
1642 $hash = random_string();
1644 $uri = "urn:X-dfrn:" . $hostname . ':' . $uid . ':' . $hash;
1646 $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
1650 } while($dups == true);
1654 // Generate a guaranteed unique photo ID.
1655 // safe from birthday paradox
1657 if(! function_exists('photo_new_resource')) {
1658 function photo_new_resource() {
1662 $resource = hash('md5',uniqid(mt_rand(),true));
1663 $r = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1",
1668 } while($found == true);
1673 // Take a URL from the wild, prepend http:// if necessary
1674 // and check DNS to see if it's real
1675 // return true if it's OK, false if something is wrong with it
1677 if(! function_exists('validate_url')) {
1678 function validate_url(&$url) {
1679 if(substr($url,0,4) != 'http')
1680 $url = 'http://' . $url;
1681 $h = parse_url($url);
1683 if(($h) && (dns_get_record($h['host'], DNS_A + DNS_CNAME + DNS_PTR))) {
1689 // checks that email is an actual resolvable internet address
1691 if(! function_exists('validate_email')) {
1692 function validate_email($addr) {
1694 if(! strpos($addr,'@'))
1696 $h = substr($addr,strpos($addr,'@') + 1);
1698 if(($h) && (dns_get_record($h, DNS_A + DNS_CNAME + DNS_PTR + DNS_MX))) {
1704 // Check $url against our list of allowed sites,
1705 // wildcards allowed. If allowed_sites is unset return true;
1706 // If url is allowed, return true.
1707 // otherwise, return false
1709 if(! function_exists('allowed_url')) {
1710 function allowed_url($url) {
1712 $h = parse_url($url);
1718 $str_allowed = get_config('system','allowed_sites');
1724 $host = strtolower($h['host']);
1726 // always allow our own site
1728 if($host == strtolower($_SERVER['SERVER_NAME']))
1731 $fnmatch = function_exists('fnmatch');
1732 $allowed = explode(',',$str_allowed);
1734 if(count($allowed)) {
1735 foreach($allowed as $a) {
1736 $pat = strtolower(trim($a));
1737 if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
1746 // check if email address is allowed to register here.
1747 // Compare against our list (wildcards allowed).
1748 // Returns false if not allowed, true if allowed or if
1749 // allowed list is not configured.
1751 if(! function_exists('allowed_email')) {
1752 function allowed_email($email) {
1755 $domain = strtolower(substr($email,strpos($email,'@') + 1));
1759 $str_allowed = get_config('system','allowed_email');
1765 $fnmatch = function_exists('fnmatch');
1766 $allowed = explode(',',$str_allowed);
1768 if(count($allowed)) {
1769 foreach($allowed as $a) {
1770 $pat = strtolower(trim($a));
1771 if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
1780 // Format the like/dislike text for a profile item
1781 // $cnt = number of people who like/dislike the item
1782 // $arr = array of pre-linked names of likers/dislikers
1783 // $type = one of 'like, 'dislike'
1785 // returns formatted text
1787 if(! function_exists('format_like')) {
1788 function format_like($cnt,$arr,$type,$id) {
1791 $o .= $arr[0] . (($type === 'like') ? t(' likes this.') : t(' doesn\'t like this.')) . EOL ;
1793 $o .= '<span class="fakelink" onclick="openClose(\'' . $type . 'list-' . $id . '\');" >'
1794 . $cnt . ' ' . t('people') . '</span> ' . (($type === 'like') ? t('like this.') : t('don\'t like this.')) . EOL ;
1795 $total = count($arr);
1796 if($total >= MAX_LIKERS)
1797 $arr = array_slice($arr, 0, MAX_LIKERS - 1);
1798 if($total < MAX_LIKERS)
1799 $arr[count($arr)-1] = t('and') . ' ' . $arr[count($arr)-1];
1800 $str = implode(', ', $arr);
1801 if($total >= MAX_LIKERS)
1802 $str .= t(', and ') . $total - MAX_LIKERS . t(' other people');
1803 $str .= (($type === 'like') ? t(' like this.') : t(' don\'t like this.'));
1804 $o .= "\t" . '<div id="' . $type . 'list-' . $id . '" style="display: none;" >' . $str . '</div>';
1810 // wrapper to load a view template, checking for alternate
1811 // languages before falling back to the default
1813 if(! function_exists('load_view_file')) {
1814 function load_view_file($s) {
1817 $lang = get_config('system','language');
1820 if(file_exists("$d/$lang/$b"))
1821 return file_get_contents("$d/$lang/$b");
1822 return file_get_contents($s);
1825 // for html,xml parsing - let's say you've got
1826 // an attribute foobar="class1 class2 class3"
1827 // and you want to find out if it contains 'class3'.
1828 // you can't use a normal sub string search because you
1829 // might match 'notclass3' and a regex to do the job is
1830 // possible but a bit complicated.
1831 // pass the attribute string as $attr and the attribute you
1832 // are looking for as $s - returns true if found, otherwise false
1834 if(! function_exists('attribute_contains')) {
1835 function attribute_contains($attr,$s) {
1836 $a = explode(' ', $attr);
1837 if(count($a) && in_array($s,$a))
1842 if(! function_exists('logger')) {
1843 function logger($msg,$level = 0) {
1844 $debugging = get_config('system','debugging');
1845 $loglevel = intval(get_config('system','loglevel'));
1846 $logfile = get_config('system','logfile');
1848 if((! $debugging) || (! $logfile) || ($level > $loglevel))
1851 @file_put_contents($logfile, datetime_convert() . ':' . session_id() . ' ' . $msg . "\n", FILE_APPEND);
1856 if(! function_exists('activity_match')) {
1857 function activity_match($haystack,$needle) {
1858 if(($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle,NAMESPACE_ACTIVITY_SCHEMA)))
1864 // Pull out all #hashtags and @person tags from $s;
1865 // We also get @person@domain.com - which would make
1866 // the regex quite complicated as tags can also
1867 // end a sentence. So we'll run through our results
1868 // and strip the period from any tags which end with one.
1869 // Returns array of tags found, or empty array.
1872 if(! function_exists('get_tags')) {
1873 function get_tags($s) {
1876 // ignore anything in a code block
1878 $s = preg_replace('/\[code\](.*?)\[\/code\]/sm','',$s);
1880 if(preg_match_all('/([@#][^ \x0D\x0A,:?]+)([ \x0D\x0A,:?]|$)/',$s,$match)) {
1881 foreach($match[1] as $match) {
1882 if(strstr($match,"]")) {
1883 // we might be inside a bbcode color tag - leave it alone
1886 if(substr($match,-1,1) === '.')
1887 $ret[] = substr($match,0,-1);
1897 // quick and dirty quoted_printable encoding
1899 if(! function_exists('qp')) {
1901 return str_replace ("%","=",rawurlencode($s));
1905 if(! function_exists('like_puller')) {
1906 function like_puller($a,$item,&$arr,$mode) {
1910 $verb = (($mode === 'like') ? ACTIVITY_LIKE : ACTIVITY_DISLIKE);
1912 if((activity_match($item['verb'],$verb)) && ($item['id'] != $item['parent'])) {
1913 $url = $item['author-link'];
1914 if((local_user()) && (local_user() == $item['uid']) && ($item['network'] === 'dfrn') && (! $item['self']) && (link_compare($item['author-link'],$item['url']))) {
1915 $url = $a->get_baseurl() . '/redir/' . $item['contact-id'];
1916 $sparkle = ' class="sparkle" ';
1918 if(! ((isset($arr[$item['parent'] . '-l'])) && (is_array($arr[$item['parent'] . '-l']))))
1919 $arr[$item['parent'] . '-l'] = array();
1920 if(! isset($arr[$item['parent']]))
1921 $arr[$item['parent']] = 1;
1923 $arr[$item['parent']] ++;
1924 $arr[$item['parent'] . '-l'][] = '<a href="'. $url . '"'. $sparkle .'>' . $item['author-name'] . '</a>';
1929 if(! function_exists('get_mentions')) {
1930 function get_mentions($item) {
1932 if(! strlen($item['tag']))
1935 $arr = explode(',',$item['tag']);
1936 foreach($arr as $x) {
1938 if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches))
1939 $o .= "\t\t" . '<link rel="mentioned" href="' . $matches[1] . '" />' . "\r\n";
1944 if(! function_exists('contact_block')) {
1945 function contact_block() {
1949 $shown = get_pconfig($a->profile['uid'],'system','display_friend_count');
1953 if((! is_array($a->profile)) || ($a->profile['hide-friends']))
1955 $r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0",
1956 intval($a->profile['uid'])
1959 $total = intval($r[0]['total']);
1962 $o .= '<h4 class="contact-h4">' . t('No contacts') . '</h4>';
1965 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0 ORDER BY RAND() LIMIT %d",
1966 intval($a->profile['uid']),
1970 $o .= '<h4 class="contact-h4">' . $total . ' ' . t('Contacts') . '</h4><div id="contact-block">';
1971 foreach($r as $rr) {
1972 $redirect_url = $a->get_baseurl() . '/redir/' . $rr['id'];
1973 if(local_user() && ($rr['uid'] == local_user())
1974 && ($rr['network'] === 'dfrn')) {
1975 $url = $redirect_url;
1976 $sparkle = ' sparkle';
1983 $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";
1985 $o .= '</div><div id="contact-block-end"></div>';
1986 $o .= '<div id="viewcontacts"><a id="viewcontacts-link" href="viewcontacts/' . $a->profile['nickname'] . '">' . t('View Contacts') . '</a></div>';
1990 $arr = array('contacts' => $r, 'output' => $o);
1992 call_hooks('contact_block_end', $arr);
1997 if(! function_exists('search')) {
1998 function search($s) {
2000 $o = '<div id="search-box">';
2001 $o .= '<form action="' . $a->get_baseurl() . '/search' . '" method="get" >';
2002 $o .= '<input type="text" name="search" id="search-text" value="' . $s .'" />';
2003 $o .= '<input type="submit" name="submit" id="search-submit" value="' . t('Search') . '" />';
2004 $o .= '</form></div>';
2008 if(! function_exists('valid_email')) {
2009 function valid_email($x){
2010 if(preg_match('/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/',$x))
2016 if(! function_exists('gravatar_img')) {
2017 function gravatar_img($email) {
2019 $opt = 'identicon'; // psuedo-random geometric pattern if not found
2021 $hash = md5(trim(strtolower($email)));
2023 $url = 'http://www.gravatar.com/avatar/' . $hash . '.jpg'
2024 . '?s=' . $size . '&d=' . $opt . '&r=' . $rating;
2026 logger('gravatar: ' . $email . ' ' . $url);
2030 if(! function_exists('aes_decrypt')) {
2031 function aes_decrypt($val,$ky)
2033 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2034 for($a=0;$a<strlen($ky);$a++)
2035 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2036 $mode = MCRYPT_MODE_ECB;
2037 $enc = MCRYPT_RIJNDAEL_128;
2038 $dec = @mcrypt_decrypt($enc, $key, $val, $mode, @mcrypt_create_iv( @mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM ) );
2039 return rtrim($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));
2043 if(! function_exists('aes_encrypt')) {
2044 function aes_encrypt($val,$ky)
2046 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2047 for($a=0;$a<strlen($ky);$a++)
2048 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2049 $mode=MCRYPT_MODE_ECB;
2050 $enc=MCRYPT_RIJNDAEL_128;
2051 $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
2052 return mcrypt_encrypt($enc, $key, $val, $mode, mcrypt_create_iv( mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM));
2060 * Replace naked text hyperlink with HTML formatted hyperlink
2064 if(! function_exists('linkify')) {
2065 function linkify($s) {
2066 $s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%\$\!\+]*)/", ' <a href="$1" target="external-link">$1</a>', $s);
2076 * Replaces text emoticons with graphical images
2078 * @Parameter: string $s
2083 if(! function_exists('smilies')) {
2084 function smilies($s) {
2088 array( '<3', '</3', '<\\3', ':-)', ';-)', ':-(', ':(', ':-P', ':-"', ':-x', ':-X', ':-D', '8-|', '8-O'),
2090 '<img src="' . $a->get_baseurl() . '/images/smiley-heart.gif" alt="<3" />',
2091 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="</3" />',
2092 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="<\\3" />',
2093 '<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":-)" />',
2094 '<img src="' . $a->get_baseurl() . '/images/smiley-wink.gif" alt=";-)" />',
2095 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":-(" />',
2096 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":(" />',
2097 '<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":-P" />',
2098 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-\"" />',
2099 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-x" />',
2100 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-X" />',
2101 '<img src="' . $a->get_baseurl() . '/images/smiley-laughing.gif" alt=":-D" />',
2102 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-|" />',
2103 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-O" />'
2110 * Function : profile_load
2112 * @parameter string $nickname
2113 * @parameter int $profile
2115 * Summary: Loads a profile into the page sidebar.
2116 * The function requires a writeable copy of the main App structure, and the nickname
2117 * of a registered local account.
2119 * If the viewer is an authenticated remote viewer, the profile displayed is the
2120 * one that has been configured for his/her viewing in the Contact manager.
2121 * Passing a non-zero profile ID can also allow a preview of a selected profile
2124 * Profile information is placed in the App structure for later retrieval.
2125 * Honours the owner's chosen theme for display.
2129 if(! function_exists('profile_load')) {
2130 function profile_load(&$a, $nickname, $profile = 0) {
2132 $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
2133 intval($_SESSION['visitor_id']));
2135 $profile = $r[0]['profile-id'];
2141 $profile_int = intval($profile);
2142 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2143 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2144 WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d LIMIT 1",
2146 intval($profile_int)
2150 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2151 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2152 WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 LIMIT 1",
2157 if(($r === false) || (! count($r))) {
2158 notice( t('No profile') . EOL );
2163 $a->profile = $r[0];
2166 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
2167 $_SESSION['theme'] = $a->profile['theme'];
2169 if(! (x($a->page,'aside')))
2170 $a->page['aside'] = '';
2172 $a->page['aside'] .= profile_sidebar($a->profile);
2173 $a->page['aside'] .= contact_block();
2181 * Function: profile_sidebar
2183 * Formats a profile for display in the sidebar.
2184 * It is very difficult to templatise the HTML completely
2185 * because of all the conditional logic.
2187 * @parameter: array $profile
2189 * Returns HTML string stuitable for sidebar inclusion
2190 * Exceptions: Returns empty string if passed $profile is wrong type or not populated
2195 if(! function_exists('profile_sidebar')) {
2196 function profile_sidebar($profile) {
2202 if((! is_array($profile)) && (! count($profile)))
2205 call_hooks('profile_sidebar_enter', $profile);
2207 $fullname = '<div class="fn">' . $profile['name'] . '</div>';
2209 $pdesc = '<div class="title">' . $profile['pdesc'] . '</div>';
2213 $photo = '<div id="profile-photo-wrapper"><img class="photo" src="' . $profile['photo'] . '" alt="' . $profile['name'] . '" /></div>';
2215 $connect = (($profile['uid'] != local_user()) ? '<li><a id="dfrn-request-link" href="dfrn_request/' . $profile['nickname'] . '">' . t('Connect') . '</a></li>' : '');
2217 if((x($profile,'address') == 1)
2218 || (x($profile,'locality') == 1)
2219 || (x($profile,'region') == 1)
2220 || (x($profile,'postal-code') == 1)
2221 || (x($profile,'country-name') == 1))
2225 $location .= '<div class="location"><span class="location-label">' . t('Location:') . '</span> <div class="adr">';
2226 $location .= ((x($profile,'address') == 1) ? '<div class="street-address">' . $profile['address'] . '</div>' : '');
2227 $location .= (((x($profile,'locality') == 1) || (x($profile,'region') == 1) || (x($profile,'postal-code') == 1))
2228 ? '<span class="city-state-zip"><span class="locality">' . $profile['locality'] . '</span>'
2229 . ((x($profile['locality']) == 1) ? t(', ') : '')
2230 . '<span class="region">' . $profile['region'] . '</span>'
2231 . ' <span class="postal-code">' . $profile['postal-code'] . '</span></span>' : '');
2232 $location .= ((x($profile,'country-name') == 1) ? ' <span class="country-name">' . $profile['country-name'] . '</span>' : '');
2233 $location .= '</div></div><div class="profile-clear"></div>';
2237 $gender = ((x($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>' : '');
2239 $pubkey = ((x($profile,'pubkey') == 1) ? '<div class="key" style="display:none;">' . $profile['pubkey'] . '</div>' : '');
2241 $marital = ((x($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>' : '');
2243 $homepage = ((x($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>' : '');
2245 $tpl = load_view_file('view/profile_vcard.tpl');
2247 $o .= replace_macros($tpl, array(
2248 '$fullname' => $fullname,
2252 '$connect' => $connect,
2253 '$location' => $location,
2254 '$gender' => $gender,
2255 '$pubkey' => $pubkey,
2256 '$marital' => $marital,
2257 '$homepage' => $homepage
2261 $arr = array('profile' => $profile, 'entry' => $o);
2263 call_hooks('profile_sidebar', $arr);
2269 if(! function_exists('register_hook')) {
2270 function register_hook($hook,$file,$function) {
2272 $r = q("SELECT * FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2280 $r = q("INSERT INTO `hook` (`hook`, `file`, `function`) VALUES ( '%s', '%s', '%s' ) ",
2288 if(! function_exists('unregister_hook')) {
2289 function unregister_hook($hook,$file,$function) {
2291 $r = q("DELETE FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2300 if(! function_exists('load_hooks')) {
2301 function load_hooks() {
2303 $a->hooks = array();
2304 $r = q("SELECT * FROM `hook` WHERE 1");
2306 foreach($r as $rr) {
2307 $a->hooks[] = array($rr['hook'], $rr['file'], $rr['function']);
2313 if(! function_exists('call_hooks')) {
2314 function call_hooks($name, &$data = null) {
2317 if(count($a->hooks)) {
2318 foreach($a->hooks as $hook) {
2319 if($hook[HOOK_HOOK] === $name) {
2320 @include_once($hook[HOOK_FILE]);
2321 if(function_exists($hook[HOOK_FUNCTION])) {
2322 $func = $hook[HOOK_FUNCTION];
2331 if(! function_exists('day_translate')) {
2332 function day_translate($s) {
2333 $ret = str_replace(array('Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'),
2334 array( t('Monday'), t('Tuesday'), t('Wednesday'), t('Thursday'), t('Friday'), t('Saturday'), t('Sunday')),
2337 $ret = str_replace(array('January','February','March','April','May','June','July','August','September','October','November','December'),
2338 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')),
2344 if(! function_exists('get_birthdays')) {
2345 function get_birthdays() {
2353 $bd_format = get_config('system','birthday_format');
2355 $bd_format = 'g A l F d' ; // 8 AM Friday January 18
2357 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
2358 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
2359 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
2360 ORDER BY `start` DESC ",
2361 intval(local_user()),
2362 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
2363 dbesc(datetime_convert('UTC','UTC','now'))
2366 if($r && count($r)) {
2367 $o .= '<div id="birthday-wrapper"><div id="birthday-title">' . t('Birthdays this week:') . '</div>';
2368 $o .= '<div id="birthday-adjust">' . t("\x28Adjusted for local time\x29") . '</div>';
2369 $o .= '<div id="birthday-title-end"></div>';
2371 foreach($r as $rr) {
2372 $now = strtotime('now');
2373 $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
2375 $o .= '<div class="birthday-list" id="birthday-' . $rr['eid'] . '"><a class="sparkle" href="'
2376 . $a->get_baseurl() . '/redir/' . $rr['cid'] . '">' . $rr['name'] . '</a> '
2377 . day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $bd_format)) . (($today) ? ' ' . t('[today]') : '')
2390 * Compare two URLs to see if they are the same, but ignore
2391 * slight but hopefully insignificant differences such as if one
2392 * is https and the other isn't, or if one is www.something and
2393 * the other isn't - and also ignore case differences.
2395 * Return true if the URLs match, otherwise false.
2399 if(! function_exists('link_compare')) {
2400 function link_compare($a,$b) {
2401 $a1 = str_replace(array('https:','//www.'), array('http:','//'), $a);
2402 $b1 = str_replace(array('https:','//www.'), array('http:','//'), $b);
2403 if(strcasecmp($a1,$b1) === 0)
2409 if(! function_exists('prepare_body')) {
2410 function prepare_body($item) {
2412 require_once('include/bbcode.php');
2414 $s = smilies(bbcode($item['body']));
2421 * Wrap calls to proc_close(proc_open()) and call hook
2422 * so plugins can take part in process :)
2425 * $cmd program to run
2426 * next args are passed as $cmd command line
2428 * e.g.: proc_run("ls","-la","/tmp");
2430 * $cmd and string args are surrounded with ""
2433 if(! function_exists('run_proc')) {
2434 function proc_run($cmd){
2435 $args = func_get_args();
2436 call_hooks("proc_run", $args);
2438 foreach ($args as &$arg){
2439 if(is_string($arg)) $arg='"'.$arg.'"';
2441 $cmdline = implode($args," ");
2442 proc_close(proc_open($cmdline." &",array(),$foo));
2446 * Return full URL to theme which is currently in effect.
2447 * Provide a sane default if nothing is chosen or the specified theme does not exist.
2450 if(! function_exists('current_theme_url')) {
2451 function current_theme_url() {
2453 $app_base_themes = array('duepuntozero', 'loozah');
2457 $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
2458 $theme_name = ((x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
2460 if($theme_name && file_exists('view/theme/' . $theme_name . '/style.css'))
2461 return($a->get_baseurl() . '/view/theme/' . $theme_name . '/style.css');
2463 foreach($app_base_themes as $t) {
2464 if(file_exists('view/theme/' . $t . '/style.css'))
2465 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
2468 $fallback = glob('view/theme/*/style.css');
2469 if(count($fallback))
2470 return($a->get_baseurl() . $fallback[0]);
2475 if(! function_exists('feed_birthday')) {
2476 function feed_birthday($uid,$tz) {
2480 * Determine the next birthday, but only if the birthday is published
2481 * in the default profile. We _could_ also look for a private profile that the
2482 * recipient can see, but somebody could get mad at us if they start getting
2483 * public birthday greetings when they haven't made this info public.
2485 * Assuming we are able to publish this info, we are then going to convert
2486 * the start time from the owner's timezone to UTC.
2488 * This will potentially solve the problem found with some social networks
2489 * where birthdays are converted to the viewer's timezone and salutations from
2490 * elsewhere in the world show up on the wrong day. We will convert it to the
2491 * viewer's timezone also, but first we are going to convert it from the birthday
2492 * person's timezone to GMT - so the viewer may find the birthday starting at
2493 * 6:00PM the day before, but that will correspond to midnight to the birthday person.
2499 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
2503 if($p && count($p)) {
2504 $tmp_dob = substr($p[0]['dob'],5);
2505 if(intval($tmp_dob)) {
2506 $y = datetime_convert($tz,$tz,'now','Y');
2507 $bd = $y . '-' . $tmp_dob . ' 00:00';
2508 $t_dob = strtotime($bd);
2509 $now = strtotime(datetime_convert($tz,$tz,'now'));
2511 $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
2512 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
2520 * return atom link elements for all of our hubs
2523 if(! function_exists('feed_hublinks')) {
2524 function feed_hublinks() {
2526 $hub = get_config('system','huburl');
2530 $hubs = explode(',', $hub);
2532 foreach($hubs as $h) {
2536 $hubxml .= '<link rel="hub" href="' . xmlify($h) . '" />' . "\n" ;
2543 /* return atom link elements for salmon endpoints */
2545 if(! function_exists('feed_salmonlinks')) {
2546 function feed_salmonlinks($nick) {
2550 $salmon = '<link rel="salmon" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2552 // old style links that status.net still needed as of 12/2010
2554 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-replies" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2555 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-mention" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2559 if(! function_exists('get_plink')) {
2560 function get_plink($item) {
2562 $plink = (((x($item,'plink')) && (! $item['private'])) ? '<div class="wall-item-links-wrapper"><a href="'
2563 . $item['plink'] . '" title="' . t('link to source') . '" target="external-link" ><img src="' . $a->get_baseurl() . '/images/remote-link.gif" alt="' . t('link to source') . '" /></a></div>' : '');
2567 if(! function_exists('unamp')) {
2568 function unamp($s) {
2569 return str_replace('&', '&', $s);