5 define ( 'BUILD_ID', 1030 );
6 define ( 'DFRN_PROTOCOL_VERSION', '2.0' );
8 define ( 'EOL', "<br />\r\n" );
9 define ( 'ATOM_TIME', 'Y-m-d\TH:i:s\Z' );
10 define ( 'DOWN_ARROW', '⇩' );
16 define ( 'LOGGER_NORMAL', 0 );
17 define ( 'LOGGER_TRACE', 1 );
18 define ( 'LOGGER_DEBUG', 2 );
19 define ( 'LOGGER_DATA', 3 );
20 define ( 'LOGGER_ALL', 4 );
23 * registration policies
26 define ( 'REGISTER_CLOSED', 0 );
27 define ( 'REGISTER_APPROVE', 1 );
28 define ( 'REGISTER_OPEN', 2 );
34 define ( 'REL_VIP', 1);
35 define ( 'REL_FAN', 2);
36 define ( 'REL_BUD', 3);
42 define ( 'HOOK_HOOK', 0);
43 define ( 'HOOK_FILE', 1);
44 define ( 'HOOK_FUNCTION', 2);
50 * PAGE_NORMAL is a typical personal profile account
51 * PAGE_SOAPBOX automatically approves all friend requests as REL_FAN, (readonly)
52 * PAGE_COMMUNITY automatically approves all friend requests as REL_FAN, but with
53 * write access to wall and comments (no email and not included in page owner's ACL lists)
54 * PAGE_FREELOVE automatically approves all friend requests as full friends (REL_BUD).
58 define ( 'PAGE_NORMAL', 0 );
59 define ( 'PAGE_SOAPBOX', 1 );
60 define ( 'PAGE_COMMUNITY', 2 );
61 define ( 'PAGE_FREELOVE', 3 );
64 * Maximum number of "people who like (or don't like) this" that we will list by name
67 define ( 'MAX_LIKERS', 75);
70 * email notification options
73 define ( 'NOTIFY_INTRO', 0x0001 );
74 define ( 'NOTIFY_CONFIRM', 0x0002 );
75 define ( 'NOTIFY_WALL', 0x0004 );
76 define ( 'NOTIFY_COMMENT', 0x0008 );
77 define ( 'NOTIFY_MAIL', 0x0010 );
80 * various namespaces we may need to parse
83 define ( 'NAMESPACE_DFRN' , 'http://purl.org/macgirvin/dfrn/1.0' );
84 define ( 'NAMESPACE_THREAD' , 'http://purl.org/syndication/thread/1.0' );
85 define ( 'NAMESPACE_TOMB' , 'http://purl.org/atompub/tombstones/1.0' );
86 define ( 'NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/' );
87 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
88 define ( 'NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia' );
89 define ( 'NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env' );
90 define ( 'NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe' );
91 define ( 'NAMESPACE_GEORSS', 'http://www.georss.org/georss' );
92 define ( 'NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0' );
93 define ( 'NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from' );
96 * activity stream defines
99 define ( 'ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like' );
100 define ( 'ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike' );
101 define ( 'ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart' );
103 define ( 'ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
104 define ( 'ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
105 define ( 'ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'unfollow' );
106 define ( 'ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post' );
107 define ( 'ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update' );
108 define ( 'ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
110 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
111 define ( 'ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note' );
112 define ( 'ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person' );
113 define ( 'ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
114 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
115 define ( 'ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
118 * item weight for query ordering
121 define ( 'GRAVITY_PARENT', 0);
122 define ( 'GRAVITY_LIKE', 3);
123 define ( 'GRAVITY_COMMENT', 6);
127 * Reverse the effect of magic_quotes_gpc if it is enabled.
128 * Please disable magic_quotes_gpc so we don't have to do this.
129 * See http://php.net/manual/en/security.magicquotes.disabling.php
133 if (get_magic_quotes_gpc()) {
134 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
135 while (list($key, $val) = each($process)) {
136 foreach ($val as $k => $v) {
137 unset($process[$key][$k]);
139 $process[$key][stripslashes($k)] = $v;
140 $process[] = &$process[$key][stripslashes($k)];
142 $process[$key][stripslashes($k)] = stripslashes($v);
154 * Our main application structure for the life of this page
155 * Primarily deals with the URL that got us here
156 * and tries to make some sense of it, and
157 * stores our page contents and config storage
158 * and anything else that might need to be passed around
159 * before we spit the page out.
163 if(! class_exists('App')) {
166 public $module_loaded = false;
167 public $query_string;
176 public $error = false;
185 public $interactive = true;
194 private $curl_headers;
196 function __construct() {
198 $this->config = array();
199 $this->page = array();
200 $this->pager= array();
202 $this->query_string = '';
204 $this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'])) ? 'https' : 'http' );
206 if(x($_SERVER,'SERVER_NAME'))
207 $this->hostname = $_SERVER['SERVER_NAME'];
209 set_include_path("include/$this->hostname" . PATH_SEPARATOR . 'include' . PATH_SEPARATOR . '.' );
211 if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=")
212 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
214 $this->cmd = trim($_GET['q'],'/\\');
217 * Figure out if we are running at the top of a domain
218 * or in a sub-directory and adjust accordingly
221 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
222 if(isset($path) && strlen($path) && ($path != $this->path))
228 * Break the URL path into C style argc/argv style arguments for our
229 * modules. Given "http://example.com/module/arg1/arg2", $this->argc
230 * will be 3 (integer) and $this->argv will contain:
236 * There will always be one argument. If provided a naked domain
237 * URL, $this->argv[0] is set to "home".
241 $this->argv = explode('/',$this->cmd);
242 $this->argc = count($this->argv);
243 if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
244 $this->module = $this->argv[0];
247 $this->module = 'home';
251 * Special handling for the webfinger/lrdd host XRD file
252 * Just spit out the contents and exit.
255 if($this->cmd === '.well-known/host-meta')
256 require_once('include/hostxrd.php');
260 * See if there is any page number information, and initialise
264 $this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1);
265 $this->pager['itemspage'] = 50;
266 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
267 $this->pager['total'] = 0;
270 function get_baseurl($ssl = false) {
271 if(strlen($this->baseurl))
272 return $this->baseurl;
274 $this->baseurl = (($ssl) ? 'https' : $this->scheme) . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
275 return $this->baseurl;
278 function set_baseurl($url) {
279 $this->baseurl = $url;
280 $this->hostname = basename($url);
283 function get_hostname() {
284 return $this->hostname;
287 function set_hostname($h) {
288 $this->hostname = $h;
291 function set_path($p) {
292 $this->path = trim(trim($p),'/');
295 function get_path() {
299 function set_pager_total($n) {
300 $this->pager['total'] = intval($n);
303 function set_pager_itemspage($n) {
304 $this->pager['itemspage'] = intval($n);
305 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
309 function init_pagehead() {
310 $tpl = load_view_file("view/head.tpl");
311 $this->page['htmlhead'] = replace_macros($tpl,array(
312 '$baseurl' => $this->get_baseurl() . '/'
316 function set_curl_code($code) {
317 $this->curl_code = $code;
320 function get_curl_code() {
321 return $this->curl_code;
324 function set_curl_headers($headers) {
325 $this->curl_headers = $headers;
328 function get_curl_headers() {
329 return $this->curl_headers;
335 // retrieve the App structure
336 // useful in functions which require it but don't get it passed to them
338 if(! function_exists('get_app')) {
345 // Multi-purpose function to check variable state.
346 // Usage: x($var) or $x($array,'key')
347 // returns false if variable/key is not set
348 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
349 // e.g. x('') or x(0) returns 0;
351 if(! function_exists('x')) {
352 function x($s,$k = NULL) {
354 if((is_array($s)) && (array_key_exists($k,$s))) {
372 // called from db initialisation if db is dead.
374 if(! function_exists('system_unavailable')) {
375 function system_unavailable() {
376 include('system_unavailable.php');
380 // Primarily involved with database upgrade, but also sets the
381 // base url for use in cmdline programs which don't have
382 // $_SERVER variables, and synchronising the state of installed plugins.
385 if(! function_exists('check_config')) {
386 function check_config(&$a) {
388 load_config('system');
390 $build = get_config('system','build');
392 $build = set_config('system','build',BUILD_ID);
394 $url = get_config('system','url');
396 $url = set_config('system','url',$a->get_baseurl());
398 if($build != BUILD_ID) {
399 $stored = intval($build);
400 $current = intval(BUILD_ID);
401 if(($stored < $current) && file_exists('update.php')) {
402 // We're reporting a different version than what is currently installed.
403 // Run any existing update scripts to bring the database up to current.
405 require_once('update.php');
406 for($x = $stored; $x < $current; $x ++) {
407 if(function_exists('update_' . $x)) {
408 $func = 'update_' . $x;
412 set_config('system','build', BUILD_ID);
418 * Synchronise plugins:
420 * $a->config['system']['addon'] contains a comma-separated list of names
421 * of plugins/addons which are used on this system.
422 * Go through the database list of already installed addons, and if we have
423 * an entry, but it isn't in the config list, call the uninstall procedure
424 * and mark it uninstalled in the database (for now we'll remove it).
425 * Then go through the config list and if we have a plugin that isn't installed,
426 * call the install procedure and add it to the database.
430 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
434 $installed = array();
436 $plugins = get_config('system','addon');
437 $plugins_arr = array();
440 $plugins_arr = explode(',',str_replace(' ', '',$plugins));
442 $installed_arr = array();
444 if(count($installed)) {
445 foreach($installed as $i) {
446 if(! in_array($i['name'],$plugins_arr)) {
447 logger("Addons: uninstalling " . $i['name']);
448 q("DELETE FROM `addon` WHERE `id` = %d LIMIT 1",
452 @include_once('addon/' . $i['name'] . '/' . $i['name'] . '.php');
453 if(function_exists($i['name'] . '_uninstall')) {
454 $func = $i['name'] . '_uninstall';
459 $installed_arr[] = $i['name'];
463 if(count($plugins_arr)) {
464 foreach($plugins_arr as $p) {
465 if(! in_array($p,$installed_arr)) {
466 logger("Addons: installing " . $p);
467 @include_once('addon/' . $p . '/' . $p . '.php');
468 if(function_exists($p . '_install')) {
469 $func = $p . '_install';
471 $r = q("INSERT INTO `addon` (`name`, `installed`) VALUES ( '%s', 1 ) ",
483 // This is our template processor.
484 // $s is the string requiring macro substitution.
485 // $r is an array of key value pairs (search => replace)
486 // returns substituted string.
487 // WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other.
488 // For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing,
489 // depending on the order in which they were declared in the array.
491 if(! function_exists('replace_macros')) {
492 function replace_macros($s,$r) {
497 if(is_array($r) && count($r)) {
498 foreach ($r as $k => $v ) {
503 return str_replace($search,$replace,$s);
507 // load string translation table for alternate language
509 if(! function_exists('load_translation_table')) {
510 function load_translation_table($lang) {
513 if(file_exists("view/$lang/strings.php"))
514 include("view/$lang/strings.php");
517 // translate string if translation exists
519 if(! function_exists('t')) {
524 if(x($a->strings,$s))
525 return $a->strings[$s];
529 // curl wrapper. If binary flag is true, return binary
532 if(! function_exists('fetch_url')) {
533 function fetch_url($url,$binary = false, &$redirects = 0) {
537 $ch = curl_init($url);
538 if(($redirects > 8) || (! $ch))
541 curl_setopt($ch, CURLOPT_HEADER, true);
542 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
545 $curl_time = intval(get_config('system','curl_timeout'));
546 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
548 // by default we will allow self-signed certs
549 // but you can override this
551 $check_cert = get_config('system','verifyssl');
552 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
554 $prx = get_config('system','proxy');
556 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
557 curl_setopt($ch, CURLOPT_PROXY, $prx);
558 $prxusr = get_config('system','proxyuser');
560 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
563 curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
565 $a->set_curl_code(0);
567 // don't let curl abort the entire application
568 // if it throws any errors.
570 $s = @curl_exec($ch);
572 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
573 $header = substr($s,0,strpos($s,"\r\n\r\n"));
574 if(stristr($header,'100') && (strlen($header) < 30)) {
575 // 100 Continue has two headers, get the real one
576 $s = substr($s,strlen($header)+4);
577 $header = substr($s,0,strpos($s,"\r\n\r\n"));
579 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
581 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
582 $url = trim(array_pop($matches));
583 $url_parsed = parse_url($url);
584 if (isset($url_parsed)) {
586 return fetch_url($url,$binary,$redirects);
589 $a->set_curl_code($http_code);
590 $body = substr($s,strlen($header)+4);
591 $a->set_curl_headers($header);
597 // post request to $url. $params is an array of post variables.
599 if(! function_exists('post_url')) {
600 function post_url($url,$params, $headers = null, &$redirects = 0) {
602 $ch = curl_init($url);
603 if(($redirects > 8) || (! $ch))
606 curl_setopt($ch, CURLOPT_HEADER, true);
607 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
608 curl_setopt($ch, CURLOPT_POST,1);
609 curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
611 $curl_time = intval(get_config('system','curl_timeout'));
612 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
614 if(is_array($headers))
615 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
617 $check_cert = get_config('system','verifyssl');
618 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
619 $prx = get_config('system','proxy');
621 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
622 curl_setopt($ch, CURLOPT_PROXY, $prx);
623 $prxusr = get_config('system','proxyuser');
625 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
628 $a->set_curl_code(0);
630 // don't let curl abort the entire application
631 // if it throws any errors.
633 $s = @curl_exec($ch);
635 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
636 $header = substr($s,0,strpos($s,"\r\n\r\n"));
637 if(stristr($header,'100') && (strlen($header) < 30)) {
638 // 100 Continue has two headers, get the real one
639 $s = substr($s,strlen($header)+4);
640 $header = substr($s,0,strpos($s,"\r\n\r\n"));
642 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
644 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
645 $url = trim(array_pop($matches));
646 $url_parsed = parse_url($url);
647 if (isset($url_parsed)) {
649 return post_url($url,$binary,$headers,$redirects);
652 $a->set_curl_code($http_code);
653 $body = substr($s,strlen($header)+4);
654 $a->set_curl_headers($header);
660 // random hash, 64 chars
662 if(! function_exists('random_string')) {
663 function random_string() {
664 return(hash('sha256',uniqid(rand(),true)));
668 * This is our primary input filter.
670 * The high bit hack only involved some old IE browser, forget which (IE5/Mac?)
671 * that had an XSS attack vector due to stripping the high-bit on an 8-bit character
672 * after cleansing, and angle chars with the high bit set could get through as markup.
674 * This is now disabled because it was interfering with some legitimate unicode sequences
675 * and hopefully there aren't a lot of those browsers left.
677 * Use this on any text input where angle chars are not valid or permitted
678 * They will be replaced with safer brackets. This may be filtered further
679 * if these are not allowed either.
683 if(! function_exists('notags')) {
684 function notags($string) {
686 return(str_replace(array("<",">"), array('[',']'), $string));
688 // High-bit filter no longer used
689 // return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string));
692 // use this on "body" or "content" input where angle chars shouldn't be removed,
693 // and allow them to be safely displayed.
695 if(! function_exists('escape_tags')) {
696 function escape_tags($string) {
698 return(htmlspecialchars($string));
701 // wrapper for adding a login box. If $register == true provide a registration
702 // link. This will most always depend on the value of $a->config['register_policy'].
703 // returns the complete html for inserting into the page
705 if(! function_exists('login')) {
706 function login($register = false) {
708 $register_html = (($register) ? load_view_file("view/register-link.tpl") : "");
710 $noid = get_config('system','no_openid');
712 $classname = 'no-openid';
713 $namelabel = t('Nickname or Email address: ');
714 $passlabel = t('Password: ');
718 $classname = 'openid';
719 $namelabel = t('Nickname/Email/OpenID: ');
720 $passlabel = t("Password \x28if not OpenID\x29: ");
723 $lostpass = t('Forgot your password?');
724 $lostlink = t('Password Reset');
726 if(x($_SESSION,'authenticated')) {
727 $tpl = load_view_file("view/logout.tpl");
730 $tpl = load_view_file("view/login.tpl");
734 $o = replace_macros($tpl,array(
735 '$register_html' => $register_html,
736 '$classname' => $classname,
737 '$namelabel' => $namelabel,
738 '$passlabel' => $passlabel,
740 '$lostpass' => $lostpass,
741 '$lostlink' => $lostlink
747 // generate a string that's random, but usually pronounceable.
748 // used to generate initial passwords
750 if(! function_exists('autoname')) {
751 function autoname($len) {
753 $vowels = array('a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u');
754 if(mt_rand(0,5) == 4)
772 's','sc','sh','sm','sp','st',
780 $midcons = array('ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
781 'nd','ng','nk','nt','rn','rp','rt');
783 $noend = array('bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
784 'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh');
786 $start = mt_rand(0,2);
794 for ($x = 0; $x < $len; $x ++) {
795 $r = mt_rand(0,count($table) - 1);
798 if($table == $vowels)
799 $table = array_merge($cons,$midcons);
805 $word = substr($word,0,$len);
807 foreach($noend as $noe) {
808 if((strlen($word) > 2) && (substr($word,-2) == $noe)) {
809 $word = substr($word,0,-1);
813 if(substr($word,-1) == 'q')
814 $word = substr($word,0,-1);
818 // Used to end the current process, after saving session state.
820 if(! function_exists('killme')) {
822 session_write_close();
826 // redirect to another URL and terminate this process.
828 if(! function_exists('goaway')) {
829 function goaway($s) {
830 header("Location: $s");
834 // Generic XML return
835 // Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
836 // of $st and an optional text <message> of $message and terminates the current process.
838 if(! function_exists('xml_status')) {
839 function xml_status($st, $message = '') {
841 $xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
844 logger('xml_status returning non_zero: ' . $st . " message=" . $message);
846 header( "Content-type: text/xml" );
847 echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
848 echo "<result>\r\n\t<status>$st</status>\r\n$xml_message</result>\r\n";
852 // Returns the uid of locally logged in user or false.
854 if(! function_exists('local_user')) {
855 function local_user() {
856 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
857 return intval($_SESSION['uid']);
861 // Returns contact id of authenticated site visitor or false
863 if(! function_exists('remote_user')) {
864 function remote_user() {
865 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
866 return intval($_SESSION['visitor_id']);
870 // contents of $s are displayed prominently on the page the next time
871 // a page is loaded. Usually used for errors or alerts.
873 if(! function_exists('notice')) {
874 function notice($s) {
877 $_SESSION['sysmsg'] .= $s;
880 // wrapper around config to limit the text length of an incoming message
882 if(! function_exists('get_max_import_size')) {
883 function get_max_import_size() {
885 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
889 // escape text ($str) for XML transport
890 // returns escaped text.
892 if(! function_exists('xmlify')) {
893 function xmlify($str) {
896 for($x = 0; $x < strlen($str); $x ++) {
927 $buffer = trim($buffer);
932 // pass xml escaped text ($s), returns unescaped text
934 if(! function_exists('unxmlify')) {
935 function unxmlify($s) {
936 $ret = str_replace('&','&', $s);
937 $ret = str_replace(array('<','>','"','''),array('<','>','"',"'"),$ret);
941 // convenience wrapper, reverse the operation "bin2hex"
943 if(! function_exists('hex2bin')) {
944 function hex2bin($s) {
945 return(pack("H*",$s));
948 // Automatic pagination.
949 // To use, get the count of total items.
950 // Then call $a->set_pager_total($number_items);
951 // Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page
952 // Then call paginate($a) after the end of the display loop to insert the pager block on the page
953 // (assuming there are enough items to paginate).
954 // When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage']
955 // will limit the results to the correct items for the current page.
956 // The actual page handling is then accomplished at the application layer.
958 if(! function_exists('paginate')) {
959 function paginate(&$a) {
961 $stripped = preg_replace('/(&page=[0-9]*)/','',$a->query_string);
962 $stripped = str_replace('q=','',$stripped);
963 $stripped = trim($stripped,'/');
964 $url = $a->get_baseurl() . '/' . $stripped;
967 if($a->pager['total'] > $a->pager['itemspage']) {
968 $o .= '<div class="pager">';
969 if($a->pager['page'] != 1)
970 $o .= '<span class="pager_prev">'."<a href=\"$url".'&page='.($a->pager['page'] - 1).'">' . t('prev') . '</a></span> ';
972 $o .= "<span class=\"pager_first\"><a href=\"$url"."&page=1\">" . t('first') . "</a></span> ";
974 $numpages = $a->pager['total'] / $a->pager['itemspage'];
977 $numstop = $numpages;
980 $numstart = (($pagenum > 7) ? ($pagenum - 7) : 1);
981 $numstop = (($pagenum > ($numpages - 7)) ? $numpages : ($numstart + 14));
984 for($i = $numstart; $i <= $numstop; $i++){
985 if($i == $a->pager['page'])
986 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
988 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
992 if(($a->pager['total'] % $a->pager['itemspage']) != 0) {
993 if($i == $a->pager['page'])
994 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
996 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1000 $lastpage = (($numpages > intval($numpages)) ? intval($numpages)+1 : $numpages);
1001 $o .= "<span class=\"pager_last\"><a href=\"$url"."&page=$lastpage\">" . t('last') . "</a></span> ";
1003 if(($a->pager['total'] - ($a->pager['itemspage'] * $a->pager['page'])) > 0)
1004 $o .= '<span class="pager_next">'."<a href=\"$url"."&page=".($a->pager['page'] + 1).'">' . t('next') . '</a></span>';
1005 $o .= '</div>'."\r\n";
1010 // Turn user/group ACLs stored as angle bracketed text into arrays
1012 if(! function_exists('expand_acl')) {
1013 function expand_acl($s) {
1014 // turn string array of angle-bracketed elements into numeric array
1015 // e.g. "<1><2><3>" => array(1,2,3);
1019 $t = str_replace('<','',$s);
1020 $a = explode('>',$t);
1021 foreach($a as $aa) {
1023 $ret[] = intval($aa);
1029 // Used to wrap ACL elements in angle brackets for storage
1031 if(! function_exists('sanitise_acl')) {
1032 function sanitise_acl(&$item) {
1034 $item = '<' . intval(notags(trim($item))) . '>';
1039 // retrieve a "family" of config variables from database to cached storage
1041 if(! function_exists('load_config')) {
1042 function load_config($family) {
1044 $r = q("SELECT * FROM `config` WHERE `cat` = '%s'",
1048 foreach($r as $rr) {
1050 $a->config[$family][$k] = $rr['v'];
1055 // get a particular config variable given the family name
1056 // and key. Returns false if not set.
1057 // $instore is only used by the set_config function
1058 // to determine if the key already exists in the DB
1059 // If a key is found in the DB but doesn't exist in
1060 // local config cache, pull it into the cache so we don't have
1061 // to hit the DB again for this item.
1063 if(! function_exists('get_config')) {
1064 function get_config($family, $key, $instore = false) {
1069 if(isset($a->config[$family][$key])) {
1070 if($a->config[$family][$key] === '!<unset>!') {
1073 return $a->config[$family][$key];
1076 $ret = q("SELECT `v` FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1081 $a->config[$family][$key] = $ret[0]['v'];
1082 return $ret[0]['v'];
1085 $a->config[$family][$key] = '!<unset>!';
1090 // Store a config value ($value) in the category ($family)
1091 // under the key ($key)
1092 // Return the value, or false if the database update failed
1094 if(! function_exists('set_config')) {
1095 function set_config($family,$key,$value) {
1098 $a->config[$family][$key] = $value;
1100 if(get_config($family,$key,true) === false) {
1101 $ret = q("INSERT INTO `config` ( `cat`, `k`, `v` ) VALUES ( '%s', '%s', '%s' ) ",
1110 $ret = q("UPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1121 if(! function_exists('load_pconfig')) {
1122 function load_pconfig($uid,$family) {
1124 $r = q("SELECT * FROM `pconfig` WHERE `cat` = '%s' AND `uid` = %d",
1129 foreach($r as $rr) {
1131 $a->config[$uid][$family][$k] = $rr['v'];
1138 if(! function_exists('get_pconfig')) {
1139 function get_pconfig($uid,$family, $key, $instore = false) {
1144 if(isset($a->config[$uid][$family][$key])) {
1145 if($a->config[$uid][$family][$key] === '!<unset>!') {
1148 return $a->config[$uid][$family][$key];
1151 $ret = q("SELECT `v` FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1157 $a->config[$uid][$family][$key] = $ret[0]['v'];
1158 return $ret[0]['v'];
1161 $a->config[$uid][$family][$key] = '!<unset>!';
1166 if(! function_exists('del_config')) {
1167 function del_config($family,$key) {
1170 if(x($a->config[$family],$key))
1171 unset($a->config[$family][$key]);
1172 $ret = q("DELETE FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1181 // Same as above functions except these are for personal config storage and take an
1182 // additional $uid argument.
1184 if(! function_exists('set_pconfig')) {
1185 function set_pconfig($uid,$family,$key,$value) {
1188 $a->config[$uid][$family][$key] = $value;
1190 if(get_pconfig($uid,$family,$key,true) === false) {
1191 $ret = q("INSERT INTO `pconfig` ( `uid`, `cat`, `k`, `v` ) VALUES ( %d, '%s', '%s', '%s' ) ",
1201 $ret = q("UPDATE `pconfig` SET `v` = '%s' WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1213 if(! function_exists('del_pconfig')) {
1214 function del_pconfig($uid,$family,$key) {
1217 if(x($a->config[$uid][$family],$key))
1218 unset($a->config[$uid][$family][$key]);
1219 $ret = q("DELETE FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1228 // convert an XML document to a normalised, case-corrected array
1229 // used by webfinger
1231 if(! function_exists('convert_xml_element_to_array')) {
1232 function convert_xml_element_to_array($xml_element, &$recursion_depth=0) {
1234 // If we're getting too deep, bail out
1235 if ($recursion_depth > 512) {
1239 if (!is_string($xml_element) &&
1240 !is_array($xml_element) &&
1241 (get_class($xml_element) == 'SimpleXMLElement')) {
1242 $xml_element_copy = $xml_element;
1243 $xml_element = get_object_vars($xml_element);
1246 if (is_array($xml_element)) {
1247 $result_array = array();
1248 if (count($xml_element) <= 0) {
1249 return (trim(strval($xml_element_copy)));
1252 foreach($xml_element as $key=>$value) {
1255 $result_array[strtolower($key)] =
1256 convert_xml_element_to_array($value, $recursion_depth);
1259 if ($recursion_depth == 0) {
1260 $temp_array = $result_array;
1261 $result_array = array(
1262 strtolower($xml_element_copy->getName()) => $temp_array,
1266 return ($result_array);
1269 return (trim(strval($xml_element)));
1273 // Given an email style address, perform webfinger lookup and
1274 // return the resulting DFRN profile URL, or if no DFRN profile URL
1275 // is located, returns an OStatus subscription template (prefixed
1276 // with the string 'stat:' to identify it as on OStatus template).
1277 // If this isn't an email style address just return $s.
1278 // Return an empty string if email-style addresses but webfinger fails,
1279 // or if the resultant personal XRD doesn't contain a supported
1280 // subscription/friend-request attribute.
1282 if(! function_exists('webfinger_dfrn')) {
1283 function webfinger_dfrn($s) {
1284 if(! strstr($s,'@')) {
1287 $links = webfinger($s);
1288 logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA);
1290 foreach($links as $link)
1291 if($link['@attributes']['rel'] === NAMESPACE_DFRN)
1292 return $link['@attributes']['href'];
1293 foreach($links as $link)
1294 if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB)
1295 return 'stat:' . $link['@attributes']['template'];
1300 // Given an email style address, perform webfinger lookup and
1301 // return the array of link attributes from the personal XRD file.
1302 // On error/failure return an empty array.
1305 if(! function_exists('webfinger')) {
1306 function webfinger($s) {
1308 if(strstr($s,'@')) {
1309 $host = substr($s,strpos($s,'@') + 1);
1312 $tpl = fetch_lrdd_template($host);
1313 logger('webfinger: lrdd template: ' . $tpl);
1315 $pxrd = str_replace('{uri}', urlencode('acct:'.$s), $tpl);
1316 $links = fetch_xrd_links($pxrd);
1317 if(! count($links)) {
1318 // try with double slashes
1319 $pxrd = str_replace('{uri}', urlencode('acct://'.$s), $tpl);
1320 $links = fetch_xrd_links($pxrd);
1328 if(! function_exists('lrdd')) {
1329 function lrdd($uri) {
1333 if(strstr($uri,'@')) {
1334 return(webfinger($uri));
1337 $html = fetch_url($uri);
1338 $headers = $a->get_curl_headers();
1339 $lines = explode("\n",$headers);
1341 foreach($lines as $line) {
1342 // TODO alter the following regex to support multiple relations (space separated)
1343 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1344 $link = $matches[1];
1349 if(! isset($link)) {
1350 // parse the page of the supplied URL looking for rel links
1352 require_once('library/HTML5/Parser.php');
1353 $dom = HTML5_Parser::parse($html);
1356 $items = $dom->getElementsByTagName('link');
1358 foreach($items as $item) {
1359 $x = $item->getAttribute('rel');
1361 $link = $item->getAttribute('href');
1369 return(fetch_xrd_links($link));
1376 // Given a host name, locate the LRDD template from that
1377 // host. Returns the LRDD template or an empty string on
1380 if(! function_exists('fetch_lrdd_template')) {
1381 function fetch_lrdd_template($host) {
1383 $url = 'http://' . $host . '/.well-known/host-meta' ;
1384 $links = fetch_xrd_links($url);
1386 foreach($links as $link)
1387 if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd')
1388 $tpl = $link['@attributes']['template'];
1390 if(! strpos($tpl,'{uri}'))
1395 // Given a URL, retrieve the page as an XRD document.
1396 // Return an array of links.
1397 // on error/failure return empty array.
1399 if(! function_exists('fetch_xrd_links')) {
1400 function fetch_xrd_links($url) {
1403 $xml = fetch_url($url);
1407 logger('fetch_xrd_links: ' . $xml, LOGGER_DATA);
1408 $h = simplexml_load_string($xml);
1409 $arr = convert_xml_element_to_array($h);
1411 if(isset($arr['xrd']['link'])) {
1412 $link = $arr['xrd']['link'];
1413 if(! isset($link[0]))
1414 $links = array($link);
1422 // Convert an ACL array to a storable string
1424 if(! function_exists('perms2str')) {
1425 function perms2str($p) {
1428 if(is_array($tmp)) {
1429 array_walk($tmp,'sanitise_acl');
1430 $ret = implode('',$tmp);
1435 // generate a guaranteed unique (for this domain) item ID for ATOM
1436 // safe from birthday paradox
1438 if(! function_exists('item_new_uri')) {
1439 function item_new_uri($hostname,$uid) {
1443 $hash = random_string();
1445 $uri = "urn:X-dfrn:" . $hostname . ':' . $uid . ':' . $hash;
1447 $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
1451 } while($dups == true);
1455 // Generate a guaranteed unique photo ID.
1456 // safe from birthday paradox
1458 if(! function_exists('photo_new_resource')) {
1459 function photo_new_resource() {
1463 $resource = hash('md5',uniqid(mt_rand(),true));
1464 $r = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1",
1469 } while($found == true);
1474 // Take a URL from the wild, prepend http:// if necessary
1475 // and check DNS to see if it's real
1476 // return true if it's OK, false if something is wrong with it
1478 if(! function_exists('validate_url')) {
1479 function validate_url(&$url) {
1480 if(substr($url,0,4) != 'http')
1481 $url = 'http://' . $url;
1482 $h = parse_url($url);
1484 if(($h) && (checkdnsrr($h['host'], 'ANY'))) {
1490 // checks that email is an actual resolvable internet address
1492 if(! function_exists('validate_email')) {
1493 function validate_email($addr) {
1495 if(! strpos($addr,'@'))
1497 $h = substr($addr,strpos($addr,'@') + 1);
1499 if(($h) && (checkdnsrr($h, 'ANY'))) {
1505 // Check $url against our list of allowed sites,
1506 // wildcards allowed. If allowed_sites is unset return true;
1507 // If url is allowed, return true.
1508 // otherwise, return false
1510 if(! function_exists('allowed_url')) {
1511 function allowed_url($url) {
1513 $h = parse_url($url);
1519 $str_allowed = get_config('system','allowed_sites');
1525 $host = strtolower($h['host']);
1527 // always allow our own site
1529 if($host == strtolower($_SERVER['SERVER_NAME']))
1532 $fnmatch = function_exists('fnmatch');
1533 $allowed = explode(',',$str_allowed);
1535 if(count($allowed)) {
1536 foreach($allowed as $a) {
1537 $pat = strtolower(trim($a));
1538 if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
1547 // check if email address is allowed to register here.
1548 // Compare against our list (wildcards allowed).
1549 // Returns false if not allowed, true if allowed or if
1550 // allowed list is not configured.
1552 if(! function_exists('allowed_email')) {
1553 function allowed_email($email) {
1556 $domain = strtolower(substr($email,strpos($email,'@') + 1));
1560 $str_allowed = get_config('system','allowed_email');
1566 $fnmatch = function_exists('fnmatch');
1567 $allowed = explode(',',$str_allowed);
1569 if(count($allowed)) {
1570 foreach($allowed as $a) {
1571 $pat = strtolower(trim($a));
1572 if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
1581 // Format the like/dislike text for a profile item
1582 // $cnt = number of people who like/dislike the item
1583 // $arr = array of pre-linked names of likers/dislikers
1584 // $type = one of 'like, 'dislike'
1586 // returns formatted text
1588 if(! function_exists('format_like')) {
1589 function format_like($cnt,$arr,$type,$id) {
1592 $o .= $arr[0] . (($type === 'like') ? t(' likes this.') : t(' doesn\'t like this.')) . EOL ;
1594 $o .= '<span class="fakelink" onclick="openClose(\'' . $type . 'list-' . $id . '\');" >'
1595 . $cnt . ' ' . t('people') . '</span> ' . (($type === 'like') ? t('like this.') : t('don\'t like this.')) . EOL ;
1596 $total = count($arr);
1597 if($total >= MAX_LIKERS)
1598 $arr = array_slice($arr, 0, MAX_LIKERS - 1);
1599 if($total < MAX_LIKERS)
1600 $arr[count($arr)-1] = t('and') . ' ' . $arr[count($arr)-1];
1601 $str = implode(', ', $arr);
1602 if($total >= MAX_LIKERS)
1603 $str .= t(', and ') . $total - MAX_LIKERS . t(' other people');
1604 $str .= (($type === 'like') ? t(' like this.') : t(' don\'t like this.'));
1605 $o .= "\t" . '<div id="' . $type . 'list-' . $id . '" style="display: none;" >' . $str . '</div>';
1611 // wrapper to load a view template, checking for alternate
1612 // languages before falling back to the default
1614 if(! function_exists('load_view_file')) {
1615 function load_view_file($s) {
1618 $lang = get_config('system','language');
1621 if(file_exists("$d/$lang/$b"))
1622 return file_get_contents("$d/$lang/$b");
1623 return file_get_contents($s);
1626 // for html,xml parsing - let's say you've got
1627 // an attribute foobar="class1 class2 class3"
1628 // and you want to find out if it contains 'class3'.
1629 // you can't use a normal sub string search because you
1630 // might match 'notclass3' and a regex to do the job is
1631 // possible but a bit complicated.
1632 // pass the attribute string as $attr and the attribute you
1633 // are looking for as $s - returns true if found, otherwise false
1635 if(! function_exists('attribute_contains')) {
1636 function attribute_contains($attr,$s) {
1637 $a = explode(' ', $attr);
1638 if(count($a) && in_array($s,$a))
1643 if(! function_exists('logger')) {
1644 function logger($msg,$level = 0) {
1646 $debugging = get_config('system','debugging');
1647 $loglevel = intval(get_config('system','loglevel'));
1648 $logfile = get_config('system','logfile');
1650 if((! $debugging) || (! $logfile) || ($level > $loglevel))
1653 @file_put_contents($logfile, datetime_convert() . ':' . session_id() . ' ' . $msg . "\n", FILE_APPEND);
1658 if(! function_exists('activity_match')) {
1659 function activity_match($haystack,$needle) {
1660 if(($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle,NAMESPACE_ACTIVITY_SCHEMA)))
1666 // Pull out all #hashtags and @person tags from $s;
1667 // We also get @person@domain.com - which would make
1668 // the regex quite complicated as tags can also
1669 // end a sentence. So we'll run through our results
1670 // and strip the period from any tags which end with one.
1671 // Returns array of tags found, or empty array.
1674 if(! function_exists('get_tags')) {
1675 function get_tags($s) {
1677 if(preg_match_all('/([@#][^ \x0D\x0A,:?]*)([ \x0D\x0A,:?]|$)/',$s,$match)) {
1678 foreach($match[1] as $match) {
1679 if(strstr($match,"]")) {
1680 // we might be inside a bbcode color tag - leave it alone
1683 if(substr($match,-1,1) === '.')
1684 $ret[] = substr($match,0,-1);
1694 // quick and dirty quoted_printable encoding
1696 if(! function_exists('qp')) {
1698 return str_replace ("%","=",rawurlencode($s));
1702 if(! function_exists('like_puller')) {
1703 function like_puller($a,$item,&$arr,$mode) {
1707 $verb = (($mode === 'like') ? ACTIVITY_LIKE : ACTIVITY_DISLIKE);
1709 if((activity_match($item['verb'],$verb)) && ($item['id'] != $item['parent'])) {
1710 $url = $item['author-link'];
1711 if(($item['network'] === 'dfrn') && (! $item['self']) && ($item['author-link'] == $item['url'])) {
1712 $url = $a->get_baseurl() . '/redir/' . $item['contact-id'];
1713 $sparkle = ' class="sparkle" ';
1715 if(! ((isset($arr[$item['parent'] . '-l'])) && (is_array($arr[$item['parent'] . '-l']))))
1716 $arr[$item['parent'] . '-l'] = array();
1717 if(! isset($arr[$item['parent']]))
1718 $arr[$item['parent']] = 1;
1720 $arr[$item['parent']] ++;
1721 $arr[$item['parent'] . '-l'][] = '<a href="'. $url . '"'. $sparkle .'>' . $item['author-name'] . '</a>';
1726 if(! function_exists('get_mentions')) {
1727 function get_mentions($item) {
1729 if(! strlen($item['tag']))
1732 $arr = explode(',',$item['tag']);
1733 foreach($arr as $x) {
1735 if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches))
1736 $o .= "\t\t" . '<link rel="mentioned" href="' . $matches[1] . '" />' . "\r\n";
1741 if(! function_exists('contact_block')) {
1742 function contact_block() {
1746 $shown = get_pconfig($a->profile['uid'],'system','display_friend_count');
1750 if((! is_array($a->profile)) || ($a->profile['hide-friends']))
1752 $r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0",
1753 intval($a->profile['uid'])
1756 $total = intval($r[0]['total']);
1759 $o .= '<h4 class="contact-h4">' . t('No contacts') . '</h4>';
1762 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0 ORDER BY RAND() LIMIT %d",
1763 intval($a->profile['uid']),
1767 $o .= '<h4 class="contact-h4">' . $total . ' ' . t('Contacts') . '</h4><div id="contact-block">';
1768 foreach($r as $rr) {
1769 $redirect_url = $a->get_baseurl() . '/redir/' . $rr['id'];
1770 if(local_user() && ($rr['uid'] == local_user())
1771 && ($rr['network'] === 'dfrn')) {
1772 $url = $redirect_url;
1773 $sparkle = ' sparkle';
1780 $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";
1782 $o .= '</div><div id="contact-block-end"></div>';
1783 $o .= '<div id="viewcontacts"><a id="viewcontacts-link" href="viewcontacts/' . $a->profile['nickname'] . '">' . t('View Contacts') . '</a></div>';
1787 $arr = array('contacts' => $r, 'output' => $o);
1789 call_hooks('contact_block_end', $arr);
1794 if(! function_exists('search')) {
1795 function search($s) {
1797 $o = '<div id="search-box">';
1798 $o .= '<form action="' . $a->get_baseurl() . '/search' . '" method="get" >';
1799 $o .= '<input type="text" name="search" id="search-text" value="' . $s .'" />';
1800 $o .= '<input type="submit" name="submit" id="search-submit" value="' . t('Search') . '" />';
1801 $o .= '</form></div>';
1805 if(! function_exists('valid_email')) {
1806 function valid_email($x){
1807 if(preg_match('/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/',$x))
1813 if(! function_exists('gravatar_img')) {
1814 function gravatar_img($email) {
1816 $opt = 'identicon'; // psuedo-random geometric pattern if not found
1818 $hash = md5(trim(strtolower($email)));
1820 $url = 'http://www.gravatar.com/avatar/' . $hash . '.jpg'
1821 . '?s=' . $size . '&d=' . $opt . '&r=' . $rating;
1823 logger('gravatar: ' . $email . ' ' . $url);
1827 if(! function_exists('aes_decrypt')) {
1828 function aes_decrypt($val,$ky)
1830 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
1831 for($a=0;$a<strlen($ky);$a++)
1832 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
1833 $mode = MCRYPT_MODE_ECB;
1834 $enc = MCRYPT_RIJNDAEL_128;
1835 $dec = @mcrypt_decrypt($enc, $key, $val, $mode, @mcrypt_create_iv( @mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM ) );
1836 return rtrim($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));
1840 if(! function_exists('aes_encrypt')) {
1841 function aes_encrypt($val,$ky)
1843 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
1844 for($a=0;$a<strlen($ky);$a++)
1845 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
1846 $mode=MCRYPT_MODE_ECB;
1847 $enc=MCRYPT_RIJNDAEL_128;
1848 $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
1849 return mcrypt_encrypt($enc, $key, $val, $mode, mcrypt_create_iv( mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM));
1857 * Replace naked text hyperlink with HTML formatted hyperlink
1861 if(! function_exists('linkify')) {
1862 function linkify($s) {
1863 $s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%]*)/", ' <a href="$1" >$1</a>', $s);
1873 * Replaces text emoticons with graphical images
1875 * @Parameter: string $s
1880 if(! function_exists('smilies')) {
1881 function smilies($s) {
1885 array( ':-)', ';-)', ':-(', ':(', ':-P', ':-"', ':-x', ':-X', ':-D', '8-|', '8-O'),
1887 '<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":-)" />',
1888 '<img src="' . $a->get_baseurl() . '/images/smiley-wink.gif" alt=";-)" />',
1889 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":-(" />',
1890 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":(" />',
1891 '<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":-P" />',
1892 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-\"" />',
1893 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-x" />',
1894 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-X" />',
1895 '<img src="' . $a->get_baseurl() . '/images/smiley-laughing.gif" alt=":-D" />',
1896 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-|" />',
1897 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-O" />'
1904 * Function : profile_load
1906 * @parameter string $nickname
1907 * @parameter int $profile
1909 * Summary: Loads a profile into the page sidebar.
1910 * The function requires a writeable copy of the main App structure, and the nickname
1911 * of a registered local account.
1913 * If the viewer is an authenticated remote viewer, the profile displayed is the
1914 * one that has been configured for his/her viewing in the Contact manager.
1915 * Passing a non-zero profile ID can also allow a preview of a selected profile
1918 * Profile information is placed in the App structure for later retrieval.
1919 * Honours the owner's chosen theme for display.
1923 if(! function_exists('profile_load')) {
1924 function profile_load(&$a, $nickname, $profile = 0) {
1926 $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
1927 intval($_SESSION['visitor_id']));
1929 $profile = $r[0]['profile-id'];
1935 $profile_int = intval($profile);
1936 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
1937 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
1938 WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d LIMIT 1",
1940 intval($profile_int)
1944 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
1945 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
1946 WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 LIMIT 1",
1951 if(($r === false) || (! count($r))) {
1952 notice( t('No profile') . EOL );
1957 $a->profile = $r[0];
1960 $a->page['title'] = $a->profile['name'];
1961 $_SESSION['theme'] = $a->profile['theme'];
1963 if(! (x($a->page,'aside')))
1964 $a->page['aside'] = '';
1966 $a->page['aside'] .= profile_sidebar($a->profile);
1967 $a->page['aside'] .= contact_block();
1975 * Function: profile_sidebar
1977 * Formats a profile for display in the sidebar.
1978 * It is very difficult to templatise the HTML completely
1979 * because of all the conditional logic.
1981 * @parameter: array $profile
1983 * Returns HTML string stuitable for sidebar inclusion
1984 * Exceptions: Returns empty string if passed $profile is wrong type or not populated
1989 if(! function_exists('profile_sidebar')) {
1990 function profile_sidebar($profile) {
1996 if((! is_array($profile)) && (! count($profile)))
1999 $fullname = '<div class="fn">' . $profile['name'] . '</div>';
2003 $photo = '<div id="profile=photo-wrapper"><img class="photo" src="' . $profile['photo'] . '" alt="' . $profile['name'] . '" /></div>';
2005 $connect = (($profile['uid'] != local_user()) ? '<li><a id="dfrn-request-link" href="dfrn_request/' . $profile['nickname'] . '">' . t('Connect') . '</a></li>' : '');
2007 if((x($profile,'address') == 1)
2008 || (x($profile,'locality') == 1)
2009 || (x($profile,'region') == 1)
2010 || (x($profile,'postal-code') == 1)
2011 || (x($profile,'country-name') == 1))
2015 $location .= '<div class="location"><span class="location-label">' . t('Location:') . '</span> <div class="adr">';
2016 $location .= ((x($profile,'address') == 1) ? '<div class="street-address">' . $profile['address'] . '</div>' : '');
2017 $location .= (((x($profile,'locality') == 1) || (x($profile,'region') == 1) || (x($profile,'postal-code') == 1))
2018 ? '<span class="city-state-zip"><span class="locality">' . $profile['locality'] . '</span>'
2019 . ((x($profile['locality']) == 1) ? t(', ') : '')
2020 . '<span class="region">' . $profile['region'] . '</span>'
2021 . ' <span class="postal-code">' . $profile['postal-code'] . '</span></span>' : '');
2022 $location .= ((x($profile,'country-name') == 1) ? ' <span class="country-name">' . $profile['country-name'] . '</span>' : '');
2023 $location .= '</div></div><div class="profile-clear"></div>';
2027 $gender = ((x($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>' : '');
2029 $pubkey = ((x($profile,'pubkey') == 1) ? '<div class="key" style="display:none;">' . $profile['pubkey'] . '</div>' : '');
2031 $marital = ((x($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>' : '');
2033 $homepage = ((x($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>' : '');
2035 $tpl = load_view_file('view/profile_vcard.tpl');
2037 $o .= replace_macros($tpl, array(
2038 '$fullname' => $fullname,
2041 '$connect' => $connect,
2042 '$location' => $location,
2043 '$gender' => $gender,
2044 '$pubkey' => $pubkey,
2045 '$marital' => $marital,
2046 '$homepage' => $homepage
2049 call_hooks('profile_sidebar', $o);
2055 if(! function_exists('register_hook')) {
2056 function register_hook($hook,$file,$function) {
2058 $r = q("SELECT * FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2066 $r = q("INSERT INTO `hook` (`hook`, `file`, `function`) VALUES ( '%s', '%s', '%s' ) ",
2074 if(! function_exists('unregister_hook')) {
2075 function unregister_hook($hook,$file,$function) {
2077 $r = q("DELETE FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2086 if(! function_exists('load_hooks')) {
2087 function load_hooks() {
2089 $r = q("SELECT * FROM `hook` WHERE 1");
2091 foreach($r as $rr) {
2092 $a->hooks[] = array($rr['hook'], $rr['file'], $rr['function']);
2098 if(! function_exists('call_hooks')) {
2099 function call_hooks($name, &$data = null) {
2102 if(count($a->hooks)) {
2103 foreach($a->hooks as $hook) {
2104 if($hook[HOOK_HOOK] === $name) {
2105 @include_once($hook[HOOK_FILE]);
2106 if(function_exists($hook[HOOK_FUNCTION])) {
2107 $func = $hook[HOOK_FUNCTION];