5 define ( 'BUILD_ID', 1039 );
6 define ( 'FRIENDIKA_VERSION', '2.10.0908' );
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;
208 private $curl_headers;
210 function __construct() {
212 $this->config = array();
213 $this->page = array();
214 $this->pager= array();
216 $this->query_string = '';
218 $this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'])) ? 'https' : 'http' );
220 if(x($_SERVER,'SERVER_NAME')) {
221 $this->hostname = $_SERVER['SERVER_NAME'];
224 * Figure out if we are running at the top of a domain
225 * or in a sub-directory and adjust accordingly
228 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
229 if(isset($path) && strlen($path) && ($path != $this->path))
233 set_include_path("include/$this->hostname" . PATH_SEPARATOR . 'include' . PATH_SEPARATOR . '.' );
235 if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=")
236 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
238 $this->cmd = trim($_GET['q'],'/\\');
244 * Break the URL path into C style argc/argv style arguments for our
245 * modules. Given "http://example.com/module/arg1/arg2", $this->argc
246 * will be 3 (integer) and $this->argv will contain:
252 * There will always be one argument. If provided a naked domain
253 * URL, $this->argv[0] is set to "home".
257 $this->argv = explode('/',$this->cmd);
258 $this->argc = count($this->argv);
259 if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
260 $this->module = $this->argv[0];
263 $this->module = 'home';
267 * Special handling for the webfinger/lrdd host XRD file
268 * Just spit out the contents and exit.
271 if($this->cmd === '.well-known/host-meta') {
272 require_once('include/hostxrd.php');
273 hostxrd($this->hostname);
278 * See if there is any page number information, and initialise
282 $this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1);
283 $this->pager['itemspage'] = 50;
284 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
285 $this->pager['total'] = 0;
288 function get_baseurl($ssl = false) {
290 $scheme = $this->scheme;
292 if(x($this->config,'ssl_policy')) {
293 if(($ssl) || ($this->config['ssl_policy'] == SSL_POLICY_FULL))
295 if(($this->config['ssl_policy'] == SSL_POLICY_SELFSIGN) && (local_user() || x($_POST,'auth-params')))
299 $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
300 return $this->baseurl;
303 function set_baseurl($url) {
304 $parsed = @parse_url($url);
306 $this->baseurl = $url;
309 $this->scheme = $parsed['scheme'];
311 $this->hostname = $parsed['host'];
312 if(x($parsed,'port'))
313 $this->hostname .= ':' . $parsed['port'];
314 if(x($parsed,'path'))
315 $this->path = trim($parsed['path'],'\\/');
320 function get_hostname() {
321 return $this->hostname;
324 function set_hostname($h) {
325 $this->hostname = $h;
328 function set_path($p) {
329 $this->path = trim(trim($p),'/');
332 function get_path() {
336 function set_pager_total($n) {
337 $this->pager['total'] = intval($n);
340 function set_pager_itemspage($n) {
341 $this->pager['itemspage'] = intval($n);
342 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
346 function init_pagehead() {
347 $this->page['title'] = $this->config['sitename'];
348 $tpl = load_view_file("view/head.tpl");
349 $this->page['htmlhead'] = replace_macros($tpl,array(
350 '$baseurl' => $this->get_baseurl() . '/',
351 '$generator' => 'Friendika' . ' ' . FRIENDIKA_VERSION
355 function set_curl_code($code) {
356 $this->curl_code = $code;
359 function get_curl_code() {
360 return $this->curl_code;
363 function set_curl_headers($headers) {
364 $this->curl_headers = $headers;
367 function get_curl_headers() {
368 return $this->curl_headers;
374 // retrieve the App structure
375 // useful in functions which require it but don't get it passed to them
377 if(! function_exists('get_app')) {
384 // Multi-purpose function to check variable state.
385 // Usage: x($var) or $x($array,'key')
386 // returns false if variable/key is not set
387 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
388 // e.g. x('') or x(0) returns 0;
390 if(! function_exists('x')) {
391 function x($s,$k = NULL) {
393 if((is_array($s)) && (array_key_exists($k,$s))) {
411 // called from db initialisation if db is dead.
413 if(! function_exists('system_unavailable')) {
414 function system_unavailable() {
415 include('system_unavailable.php');
420 // Primarily involved with database upgrade, but also sets the
421 // base url for use in cmdline programs which don't have
422 // $_SERVER variables, and synchronising the state of installed plugins.
425 if(! function_exists('check_config')) {
426 function check_config(&$a) {
429 load_config('system');
431 if(! x($_SERVER,'SERVER_NAME'))
434 $build = get_config('system','build');
436 $build = set_config('system','build',BUILD_ID);
438 $url = get_config('system','url');
440 $url = set_config('system','url',$a->get_baseurl());
442 if($build != BUILD_ID) {
443 $stored = intval($build);
444 $current = intval(BUILD_ID);
445 if(($stored < $current) && file_exists('update.php')) {
446 // We're reporting a different version than what is currently installed.
447 // Run any existing update scripts to bring the database up to current.
449 require_once('update.php');
450 for($x = $stored; $x < $current; $x ++) {
451 if(function_exists('update_' . $x)) {
452 $func = 'update_' . $x;
456 set_config('system','build', BUILD_ID);
462 * Synchronise plugins:
464 * $a->config['system']['addon'] contains a comma-separated list of names
465 * of plugins/addons which are used on this system.
466 * Go through the database list of already installed addons, and if we have
467 * an entry, but it isn't in the config list, call the uninstall procedure
468 * and mark it uninstalled in the database (for now we'll remove it).
469 * Then go through the config list and if we have a plugin that isn't installed,
470 * call the install procedure and add it to the database.
474 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
478 $installed = array();
480 $plugins = get_config('system','addon');
481 $plugins_arr = array();
484 $plugins_arr = explode(',',str_replace(' ', '',$plugins));
486 $a->plugins = $plugins_arr;
488 $installed_arr = array();
490 if(count($installed)) {
491 foreach($installed as $i) {
492 if(! in_array($i['name'],$plugins_arr)) {
493 logger("Addons: uninstalling " . $i['name']);
494 q("DELETE FROM `addon` WHERE `id` = %d LIMIT 1",
498 @include_once('addon/' . $i['name'] . '/' . $i['name'] . '.php');
499 if(function_exists($i['name'] . '_uninstall')) {
500 $func = $i['name'] . '_uninstall';
505 $installed_arr[] = $i['name'];
509 if(count($plugins_arr)) {
510 foreach($plugins_arr as $p) {
511 if(! in_array($p,$installed_arr)) {
512 logger("Addons: installing " . $p);
513 @include_once('addon/' . $p . '/' . $p . '.php');
514 if(function_exists($p . '_install')) {
515 $func = $p . '_install';
517 $r = q("INSERT INTO `addon` (`name`, `installed`) VALUES ( '%s', 1 ) ",
530 // This is our template processor.
531 // $s is the string requiring macro substitution.
532 // $r is an array of key value pairs (search => replace)
533 // returns substituted string.
534 // WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other.
535 // For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing,
536 // depending on the order in which they were declared in the array.
538 if(! function_exists('replace_macros')) {
539 function replace_macros($s,$r) {
544 if(is_array($r) && count($r)) {
545 foreach ($r as $k => $v ) {
550 return str_replace($search,$replace,$s);
554 // load string translation table for alternate language
556 if(! function_exists('load_translation_table')) {
557 function load_translation_table($lang) {
560 if(file_exists("view/$lang/strings.php"))
561 include("view/$lang/strings.php");
564 // translate string if translation exists
566 if(! function_exists('t')) {
571 if(x($a->strings,$s))
572 return $a->strings[$s];
576 // curl wrapper. If binary flag is true, return binary
579 if(! function_exists('fetch_url')) {
580 function fetch_url($url,$binary = false, &$redirects = 0) {
584 $ch = curl_init($url);
585 if(($redirects > 8) || (! $ch))
588 curl_setopt($ch, CURLOPT_HEADER, true);
589 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
592 $curl_time = intval(get_config('system','curl_timeout'));
593 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
595 // by default we will allow self-signed certs
596 // but you can override this
598 $check_cert = get_config('system','verifyssl');
599 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
601 $prx = get_config('system','proxy');
603 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
604 curl_setopt($ch, CURLOPT_PROXY, $prx);
605 $prxusr = get_config('system','proxyuser');
607 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
610 curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
612 $a->set_curl_code(0);
614 // don't let curl abort the entire application
615 // if it throws any errors.
617 $s = @curl_exec($ch);
619 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
620 $header = substr($s,0,strpos($s,"\r\n\r\n"));
621 if(stristr($header,'100') && (strlen($header) < 30)) {
622 // 100 Continue has two headers, get the real one
623 $s = substr($s,strlen($header)+4);
624 $header = substr($s,0,strpos($s,"\r\n\r\n"));
626 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
628 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
629 $url = trim(array_pop($matches));
630 $url_parsed = @parse_url($url);
631 if (isset($url_parsed)) {
633 return fetch_url($url,$binary,$redirects);
636 $a->set_curl_code($http_code);
638 $body = substr($s,strlen($header)+4);
640 /* one more try to make sure there are no more headers */
642 if(strpos($body,'HTTP/') === 0) {
643 $header = substr($body,0,strpos($body,"\r\n\r\n"));
644 $body = substr($body,strlen($header)+4);
647 $a->set_curl_headers($header);
653 // post request to $url. $params is an array of post variables.
655 if(! function_exists('post_url')) {
656 function post_url($url,$params, $headers = null, &$redirects = 0) {
658 $ch = curl_init($url);
659 if(($redirects > 8) || (! $ch))
662 curl_setopt($ch, CURLOPT_HEADER, true);
663 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
664 curl_setopt($ch, CURLOPT_POST,1);
665 curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
667 $curl_time = intval(get_config('system','curl_timeout'));
668 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
670 if(is_array($headers))
671 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
673 $check_cert = get_config('system','verifyssl');
674 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
675 $prx = get_config('system','proxy');
677 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
678 curl_setopt($ch, CURLOPT_PROXY, $prx);
679 $prxusr = get_config('system','proxyuser');
681 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
684 $a->set_curl_code(0);
686 // don't let curl abort the entire application
687 // if it throws any errors.
689 $s = @curl_exec($ch);
691 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
692 $header = substr($s,0,strpos($s,"\r\n\r\n"));
693 if(stristr($header,'100') && (strlen($header) < 30)) {
694 // 100 Continue has two headers, get the real one
695 $s = substr($s,strlen($header)+4);
696 $header = substr($s,0,strpos($s,"\r\n\r\n"));
698 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
700 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
701 $url = trim(array_pop($matches));
702 $url_parsed = @parse_url($url);
703 if (isset($url_parsed)) {
705 return post_url($url,$binary,$headers,$redirects);
708 $a->set_curl_code($http_code);
709 $body = substr($s,strlen($header)+4);
711 /* one more try to make sure there are no more headers */
713 if(strpos($body,'HTTP/') === 0) {
714 $header = substr($body,0,strpos($body,"\r\n\r\n"));
715 $body = substr($body,strlen($header)+4);
718 $a->set_curl_headers($header);
724 // random hash, 64 chars
726 if(! function_exists('random_string')) {
727 function random_string() {
728 return(hash('sha256',uniqid(rand(),true)));
732 * This is our primary input filter.
734 * The high bit hack only involved some old IE browser, forget which (IE5/Mac?)
735 * that had an XSS attack vector due to stripping the high-bit on an 8-bit character
736 * after cleansing, and angle chars with the high bit set could get through as markup.
738 * This is now disabled because it was interfering with some legitimate unicode sequences
739 * and hopefully there aren't a lot of those browsers left.
741 * Use this on any text input where angle chars are not valid or permitted
742 * They will be replaced with safer brackets. This may be filtered further
743 * if these are not allowed either.
747 if(! function_exists('notags')) {
748 function notags($string) {
750 return(str_replace(array("<",">"), array('[',']'), $string));
752 // High-bit filter no longer used
753 // return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string));
756 // use this on "body" or "content" input where angle chars shouldn't be removed,
757 // and allow them to be safely displayed.
759 if(! function_exists('escape_tags')) {
760 function escape_tags($string) {
762 return(htmlspecialchars($string));
765 // wrapper for adding a login box. If $register == true provide a registration
766 // link. This will most always depend on the value of $a->config['register_policy'].
767 // returns the complete html for inserting into the page
769 if(! function_exists('login')) {
770 function login($register = false) {
772 $register_tpl = (($register) ? load_view_file("view/register-link.tpl") : "");
774 $register_html = replace_macros($register_tpl,array(
775 '$title' => t('Create a New Account'),
776 '$desc' => t('Register')
779 $noid = get_config('system','no_openid');
781 $classname = 'no-openid';
782 $namelabel = t('Nickname or Email address: ');
783 $passlabel = t('Password: ');
787 $classname = 'openid';
788 $namelabel = t('Nickname/Email/OpenID: ');
789 $passlabel = t("Password \x28if not OpenID\x29: ");
792 $lostpass = t('Forgot your password?');
793 $lostlink = t('Password Reset');
796 $tpl = load_view_file("view/logout.tpl");
799 $tpl = load_view_file("view/login.tpl");
803 $o = replace_macros($tpl,array(
804 '$logout' => t('Logout'),
805 '$register_html' => $register_html,
806 '$classname' => $classname,
807 '$namelabel' => $namelabel,
808 '$passlabel' => $passlabel,
810 '$lostpass' => $lostpass,
811 '$lostlink' => $lostlink
817 // generate a string that's random, but usually pronounceable.
818 // used to generate initial passwords
820 if(! function_exists('autoname')) {
821 function autoname($len) {
823 $vowels = array('a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u');
824 if(mt_rand(0,5) == 4)
842 's','sc','sh','sm','sp','st',
850 $midcons = array('ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
851 'nd','ng','nk','nt','rn','rp','rt');
853 $noend = array('bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
854 'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh');
856 $start = mt_rand(0,2);
864 for ($x = 0; $x < $len; $x ++) {
865 $r = mt_rand(0,count($table) - 1);
868 if($table == $vowels)
869 $table = array_merge($cons,$midcons);
875 $word = substr($word,0,$len);
877 foreach($noend as $noe) {
878 if((strlen($word) > 2) && (substr($word,-2) == $noe)) {
879 $word = substr($word,0,-1);
883 if(substr($word,-1) == 'q')
884 $word = substr($word,0,-1);
888 // Used to end the current process, after saving session state.
890 if(! function_exists('killme')) {
892 session_write_close();
896 // redirect to another URL and terminate this process.
898 if(! function_exists('goaway')) {
899 function goaway($s) {
900 header("Location: $s");
904 // Generic XML return
905 // Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
906 // of $st and an optional text <message> of $message and terminates the current process.
908 if(! function_exists('xml_status')) {
909 function xml_status($st, $message = '') {
911 $xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
914 logger('xml_status returning non_zero: ' . $st . " message=" . $message);
916 header( "Content-type: text/xml" );
917 echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
918 echo "<result>\r\n\t<status>$st</status>\r\n$xml_message</result>\r\n";
922 // Returns the uid of locally logged in user or false.
924 if(! function_exists('local_user')) {
925 function local_user() {
926 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
927 return intval($_SESSION['uid']);
931 // Returns contact id of authenticated site visitor or false
933 if(! function_exists('remote_user')) {
934 function remote_user() {
935 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
936 return intval($_SESSION['visitor_id']);
940 // contents of $s are displayed prominently on the page the next time
941 // a page is loaded. Usually used for errors or alerts.
943 if(! function_exists('notice')) {
944 function notice($s) {
947 $_SESSION['sysmsg'] .= $s;
950 // wrapper around config to limit the text length of an incoming message
952 if(! function_exists('get_max_import_size')) {
953 function get_max_import_size() {
955 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
959 // escape text ($str) for XML transport
960 // returns escaped text.
962 if(! function_exists('xmlify')) {
963 function xmlify($str) {
966 for($x = 0; $x < strlen($str); $x ++) {
996 $buffer = trim($buffer);
1001 // pass xml escaped text ($s), returns unescaped text
1003 if(! function_exists('unxmlify')) {
1004 function unxmlify($s) {
1005 $ret = str_replace('&','&', $s);
1006 $ret = str_replace(array('<','>','"','''),array('<','>','"',"'"),$ret);
1010 // convenience wrapper, reverse the operation "bin2hex"
1012 if(! function_exists('hex2bin')) {
1013 function hex2bin($s) {
1014 if(! ctype_xdigit($s)) {
1015 logger('hex2bin: illegal input: ' . print_r(debug_backtrace(), true));
1019 return(pack("H*",$s));
1022 // Automatic pagination.
1023 // To use, get the count of total items.
1024 // Then call $a->set_pager_total($number_items);
1025 // Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page
1026 // Then call paginate($a) after the end of the display loop to insert the pager block on the page
1027 // (assuming there are enough items to paginate).
1028 // When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage']
1029 // will limit the results to the correct items for the current page.
1030 // The actual page handling is then accomplished at the application layer.
1032 if(! function_exists('paginate')) {
1033 function paginate(&$a) {
1035 $stripped = preg_replace('/(&page=[0-9]*)/','',$a->query_string);
1036 $stripped = str_replace('q=','',$stripped);
1037 $stripped = trim($stripped,'/');
1038 $url = $a->get_baseurl() . '/' . $stripped;
1041 if($a->pager['total'] > $a->pager['itemspage']) {
1042 $o .= '<div class="pager">';
1043 if($a->pager['page'] != 1)
1044 $o .= '<span class="pager_prev">'."<a href=\"$url".'&page='.($a->pager['page'] - 1).'">' . t('prev') . '</a></span> ';
1046 $o .= "<span class=\"pager_first\"><a href=\"$url"."&page=1\">" . t('first') . "</a></span> ";
1048 $numpages = $a->pager['total'] / $a->pager['itemspage'];
1051 $numstop = $numpages;
1053 if($numpages > 14) {
1054 $numstart = (($pagenum > 7) ? ($pagenum - 7) : 1);
1055 $numstop = (($pagenum > ($numpages - 7)) ? $numpages : ($numstart + 14));
1058 for($i = $numstart; $i <= $numstop; $i++){
1059 if($i == $a->pager['page'])
1060 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1062 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1066 if(($a->pager['total'] % $a->pager['itemspage']) != 0) {
1067 if($i == $a->pager['page'])
1068 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1070 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1074 $lastpage = (($numpages > intval($numpages)) ? intval($numpages)+1 : $numpages);
1075 $o .= "<span class=\"pager_last\"><a href=\"$url"."&page=$lastpage\">" . t('last') . "</a></span> ";
1077 if(($a->pager['total'] - ($a->pager['itemspage'] * $a->pager['page'])) > 0)
1078 $o .= '<span class="pager_next">'."<a href=\"$url"."&page=".($a->pager['page'] + 1).'">' . t('next') . '</a></span>';
1079 $o .= '</div>'."\r\n";
1084 // Turn user/group ACLs stored as angle bracketed text into arrays
1086 if(! function_exists('expand_acl')) {
1087 function expand_acl($s) {
1088 // turn string array of angle-bracketed elements into numeric array
1089 // e.g. "<1><2><3>" => array(1,2,3);
1093 $t = str_replace('<','',$s);
1094 $a = explode('>',$t);
1095 foreach($a as $aa) {
1097 $ret[] = intval($aa);
1103 // Used to wrap ACL elements in angle brackets for storage
1105 if(! function_exists('sanitise_acl')) {
1106 function sanitise_acl(&$item) {
1108 $item = '<' . intval(notags(trim($item))) . '>';
1113 // retrieve a "family" of config variables from database to cached storage
1115 if(! function_exists('load_config')) {
1116 function load_config($family) {
1118 $r = q("SELECT * FROM `config` WHERE `cat` = '%s'",
1122 foreach($r as $rr) {
1124 $a->config[$family][$k] = $rr['v'];
1129 // get a particular config variable given the family name
1130 // and key. Returns false if not set.
1131 // $instore is only used by the set_config function
1132 // to determine if the key already exists in the DB
1133 // If a key is found in the DB but doesn't exist in
1134 // local config cache, pull it into the cache so we don't have
1135 // to hit the DB again for this item.
1137 if(! function_exists('get_config')) {
1138 function get_config($family, $key, $instore = false) {
1143 if(isset($a->config[$family][$key])) {
1144 if($a->config[$family][$key] === '!<unset>!') {
1147 return $a->config[$family][$key];
1150 $ret = q("SELECT `v` FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1155 $a->config[$family][$key] = $ret[0]['v'];
1156 return $ret[0]['v'];
1159 $a->config[$family][$key] = '!<unset>!';
1164 // Store a config value ($value) in the category ($family)
1165 // under the key ($key)
1166 // Return the value, or false if the database update failed
1168 if(! function_exists('set_config')) {
1169 function set_config($family,$key,$value) {
1173 if(get_config($family,$key,true) === false) {
1174 $ret = q("INSERT INTO `config` ( `cat`, `k`, `v` ) VALUES ( '%s', '%s', '%s' ) ",
1183 $ret = q("UPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1189 $a->config[$family][$key] = $value;
1197 if(! function_exists('load_pconfig')) {
1198 function load_pconfig($uid,$family) {
1200 $r = q("SELECT * FROM `pconfig` WHERE `cat` = '%s' AND `uid` = %d",
1205 foreach($r as $rr) {
1207 $a->config[$uid][$family][$k] = $rr['v'];
1214 if(! function_exists('get_pconfig')) {
1215 function get_pconfig($uid,$family, $key, $instore = false) {
1220 if(isset($a->config[$uid][$family][$key])) {
1221 if($a->config[$uid][$family][$key] === '!<unset>!') {
1224 return $a->config[$uid][$family][$key];
1228 $ret = q("SELECT `v` FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1235 $a->config[$uid][$family][$key] = $ret[0]['v'];
1236 return $ret[0]['v'];
1239 $a->config[$uid][$family][$key] = '!<unset>!';
1244 if(! function_exists('del_config')) {
1245 function del_config($family,$key) {
1248 if(x($a->config[$family],$key))
1249 unset($a->config[$family][$key]);
1250 $ret = q("DELETE FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1259 // Same as above functions except these are for personal config storage and take an
1260 // additional $uid argument.
1262 if(! function_exists('set_pconfig')) {
1263 function set_pconfig($uid,$family,$key,$value) {
1267 if(get_pconfig($uid,$family,$key,true) === false) {
1268 $ret = q("INSERT INTO `pconfig` ( `uid`, `cat`, `k`, `v` ) VALUES ( %d, '%s', '%s', '%s' ) ",
1278 $ret = q("UPDATE `pconfig` SET `v` = '%s' WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1285 $a->config[$uid][$family][$key] = $value;
1292 if(! function_exists('del_pconfig')) {
1293 function del_pconfig($uid,$family,$key) {
1296 if(x($a->config[$uid][$family],$key))
1297 unset($a->config[$uid][$family][$key]);
1298 $ret = q("DELETE FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1307 // convert an XML document to a normalised, case-corrected array
1308 // used by webfinger
1310 if(! function_exists('convert_xml_element_to_array')) {
1311 function convert_xml_element_to_array($xml_element, &$recursion_depth=0) {
1313 // If we're getting too deep, bail out
1314 if ($recursion_depth > 512) {
1318 if (!is_string($xml_element) &&
1319 !is_array($xml_element) &&
1320 (get_class($xml_element) == 'SimpleXMLElement')) {
1321 $xml_element_copy = $xml_element;
1322 $xml_element = get_object_vars($xml_element);
1325 if (is_array($xml_element)) {
1326 $result_array = array();
1327 if (count($xml_element) <= 0) {
1328 return (trim(strval($xml_element_copy)));
1331 foreach($xml_element as $key=>$value) {
1334 $result_array[strtolower($key)] =
1335 convert_xml_element_to_array($value, $recursion_depth);
1338 if ($recursion_depth == 0) {
1339 $temp_array = $result_array;
1340 $result_array = array(
1341 strtolower($xml_element_copy->getName()) => $temp_array,
1345 return ($result_array);
1348 return (trim(strval($xml_element)));
1352 // Given an email style address, perform webfinger lookup and
1353 // return the resulting DFRN profile URL, or if no DFRN profile URL
1354 // is located, returns an OStatus subscription template (prefixed
1355 // with the string 'stat:' to identify it as on OStatus template).
1356 // If this isn't an email style address just return $s.
1357 // Return an empty string if email-style addresses but webfinger fails,
1358 // or if the resultant personal XRD doesn't contain a supported
1359 // subscription/friend-request attribute.
1361 if(! function_exists('webfinger_dfrn')) {
1362 function webfinger_dfrn($s) {
1363 if(! strstr($s,'@')) {
1366 $links = webfinger($s);
1367 logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA);
1369 foreach($links as $link)
1370 if($link['@attributes']['rel'] === NAMESPACE_DFRN)
1371 return $link['@attributes']['href'];
1372 foreach($links as $link)
1373 if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB)
1374 return 'stat:' . $link['@attributes']['template'];
1379 // Given an email style address, perform webfinger lookup and
1380 // return the array of link attributes from the personal XRD file.
1381 // On error/failure return an empty array.
1384 if(! function_exists('webfinger')) {
1385 function webfinger($s) {
1387 if(strstr($s,'@')) {
1388 $host = substr($s,strpos($s,'@') + 1);
1391 $tpl = fetch_lrdd_template($host);
1392 logger('webfinger: lrdd template: ' . $tpl);
1394 $pxrd = str_replace('{uri}', urlencode('acct:' . $s), $tpl);
1395 logger('webfinger: pxrd: ' . $pxrd);
1396 $links = fetch_xrd_links($pxrd);
1397 if(! count($links)) {
1398 // try with double slashes
1399 $pxrd = str_replace('{uri}', urlencode('acct://' . $s), $tpl);
1400 logger('webfinger: pxrd: ' . $pxrd);
1401 $links = fetch_xrd_links($pxrd);
1409 if(! function_exists('lrdd')) {
1410 function lrdd($uri) {
1414 // default priority is host priority, host-meta first
1418 // All we have is an email address. Resource-priority is irrelevant
1419 // because our URI isn't directly resolvable.
1421 if(strstr($uri,'@')) {
1422 return(webfinger($uri));
1425 // get the host meta file
1427 $host = @parse_url($uri);
1430 $url = ((x($host,'scheme')) ? $host['scheme'] : 'http') . '://';
1431 $url .= $host['host'] . '/.well-known/host-meta' ;
1436 logger('lrdd: constructed url: ' . $url);
1438 $xml = fetch_url($url);
1439 $headers = $a->get_curl_headers();
1444 logger('lrdd: host_meta: ' . $xml, LOGGER_DATA);
1445 $h = simplexml_load_string($xml);
1446 $arr = convert_xml_element_to_array($h);
1448 if(isset($arr['xrd']['property'])) {
1449 $property = $arr['crd']['property'];
1450 if(! isset($property[0]))
1451 $properties = array($property);
1453 $properties = $property;
1454 foreach($properties as $prop)
1455 if((string) $prop['@attributes'] === 'http://lrdd.net/priority/resource')
1456 $priority = 'resource';
1459 // save the links in case we need them
1463 if(isset($arr['xrd']['link'])) {
1464 $link = $arr['xrd']['link'];
1465 if(! isset($link[0]))
1466 $links = array($link);
1471 // do we have a template or href?
1474 foreach($links as $link) {
1475 if($link['@attributes']['rel'] && attribute_contains($link['@attributes']['rel'],'lrdd')) {
1476 if(x($link['@attributes'],'template'))
1477 $tpl = $link['@attributes']['template'];
1478 elseif(x($link['@attributes'],'href'))
1479 $href = $link['@attributes']['href'];
1484 if((! isset($tpl)) || (! strpos($tpl,'{uri}')))
1487 if($priority === 'host') {
1489 $pxrd = str_replace('{uri}', urlencode($uri), $tpl);
1490 elseif(isset($href))
1493 logger('lrdd: (host priority) pxrd: ' . $pxrd);
1494 $links = fetch_xrd_links($pxrd);
1498 $lines = explode("\n",$headers);
1500 foreach($lines as $line) {
1501 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1502 return(fetch_xrd_links($matches[1]));
1510 // priority 'resource'
1513 $html = fetch_url($uri);
1514 $headers = $a->get_curl_headers();
1515 logger('lrdd: headers=' . $headers, LOGGER_DEBUG);
1517 require_once('library/HTML5/Parser.php');
1518 $dom = @HTML5_Parser::parse($html);
1521 $items = $dom->getElementsByTagName('link');
1522 foreach($items as $item) {
1523 $x = $item->getAttribute('rel');
1525 $pagelink = $item->getAttribute('href');
1531 if(isset($pagelink))
1532 return(fetch_xrd_links($pagelink));
1534 // next look in HTTP headers
1536 $lines = explode("\n",$headers);
1538 foreach($lines as $line) {
1539 // TODO alter the following regex to support multiple relations (space separated)
1540 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1541 $pagelink = $matches[1];
1544 // don't try and run feeds through the html5 parser
1545 if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml'))))
1547 if(stristr($html,'<rss') || stristr($html,'<feed'))
1552 if(isset($pagelink))
1553 return(fetch_xrd_links($pagelink));
1555 // If we haven't found any links, return the host xrd links (which we have already fetched)
1566 // Given a host name, locate the LRDD template from that
1567 // host. Returns the LRDD template or an empty string on
1570 if(! function_exists('fetch_lrdd_template')) {
1571 function fetch_lrdd_template($host) {
1573 $url = 'http://' . $host . '/.well-known/host-meta' ;
1574 $links = fetch_xrd_links($url);
1575 logger('template: ' . print_r($links,true));
1577 foreach($links as $link)
1578 if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd')
1579 $tpl = $link['@attributes']['template'];
1581 if(! strpos($tpl,'{uri}'))
1586 // Given a URL, retrieve the page as an XRD document.
1587 // Return an array of links.
1588 // on error/failure return empty array.
1590 if(! function_exists('fetch_xrd_links')) {
1591 function fetch_xrd_links($url) {
1594 $xml = fetch_url($url);
1598 logger('fetch_xrd_links: ' . $xml, LOGGER_DATA);
1599 $h = simplexml_load_string($xml);
1600 $arr = convert_xml_element_to_array($h);
1604 if(isset($arr['xrd']['link'])) {
1605 $link = $arr['xrd']['link'];
1606 if(! isset($link[0]))
1607 $links = array($link);
1611 if(isset($arr['xrd']['alias'])) {
1612 $alias = $arr['xrd']['alias'];
1613 if(! isset($alias[0]))
1614 $aliases = array($alias);
1617 foreach($aliases as $alias) {
1618 $links[]['@attributes'] = array('rel' => 'alias' , 'href' => $alias);
1622 logger('fetch_xrd_links: ' . print_r($links,true), LOGGER_DATA);
1628 // Convert an ACL array to a storable string
1630 if(! function_exists('perms2str')) {
1631 function perms2str($p) {
1634 if(is_array($tmp)) {
1635 array_walk($tmp,'sanitise_acl');
1636 $ret = implode('',$tmp);
1641 // generate a guaranteed unique (for this domain) item ID for ATOM
1642 // safe from birthday paradox
1644 if(! function_exists('item_new_uri')) {
1645 function item_new_uri($hostname,$uid) {
1649 $hash = random_string();
1651 $uri = "urn:X-dfrn:" . $hostname . ':' . $uid . ':' . $hash;
1653 $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
1657 } while($dups == true);
1661 // Generate a guaranteed unique photo ID.
1662 // safe from birthday paradox
1664 if(! function_exists('photo_new_resource')) {
1665 function photo_new_resource() {
1669 $resource = hash('md5',uniqid(mt_rand(),true));
1670 $r = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1",
1675 } while($found == true);
1680 // Take a URL from the wild, prepend http:// if necessary
1681 // and check DNS to see if it's real
1682 // return true if it's OK, false if something is wrong with it
1684 if(! function_exists('validate_url')) {
1685 function validate_url(&$url) {
1686 if(substr($url,0,4) != 'http')
1687 $url = 'http://' . $url;
1688 $h = @parse_url($url);
1690 if(($h) && (dns_get_record($h['host'], DNS_A + DNS_CNAME + DNS_PTR))) {
1696 // checks that email is an actual resolvable internet address
1698 if(! function_exists('validate_email')) {
1699 function validate_email($addr) {
1701 if(! strpos($addr,'@'))
1703 $h = substr($addr,strpos($addr,'@') + 1);
1705 if(($h) && (dns_get_record($h, DNS_A + DNS_CNAME + DNS_PTR + DNS_MX))) {
1711 // Check $url against our list of allowed sites,
1712 // wildcards allowed. If allowed_sites is unset return true;
1713 // If url is allowed, return true.
1714 // otherwise, return false
1716 if(! function_exists('allowed_url')) {
1717 function allowed_url($url) {
1719 $h = @parse_url($url);
1725 $str_allowed = get_config('system','allowed_sites');
1731 $host = strtolower($h['host']);
1733 // always allow our own site
1735 if($host == strtolower($_SERVER['SERVER_NAME']))
1738 $fnmatch = function_exists('fnmatch');
1739 $allowed = explode(',',$str_allowed);
1741 if(count($allowed)) {
1742 foreach($allowed as $a) {
1743 $pat = strtolower(trim($a));
1744 if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
1753 // check if email address is allowed to register here.
1754 // Compare against our list (wildcards allowed).
1755 // Returns false if not allowed, true if allowed or if
1756 // allowed list is not configured.
1758 if(! function_exists('allowed_email')) {
1759 function allowed_email($email) {
1762 $domain = strtolower(substr($email,strpos($email,'@') + 1));
1766 $str_allowed = get_config('system','allowed_email');
1772 $fnmatch = function_exists('fnmatch');
1773 $allowed = explode(',',$str_allowed);
1775 if(count($allowed)) {
1776 foreach($allowed as $a) {
1777 $pat = strtolower(trim($a));
1778 if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
1787 // Format the like/dislike text for a profile item
1788 // $cnt = number of people who like/dislike the item
1789 // $arr = array of pre-linked names of likers/dislikers
1790 // $type = one of 'like, 'dislike'
1792 // returns formatted text
1794 if(! function_exists('format_like')) {
1795 function format_like($cnt,$arr,$type,$id) {
1798 $o .= $arr[0] . (($type === 'like') ? t(' likes this.') : t(' doesn\'t like this.')) . EOL ;
1800 $o .= '<span class="fakelink" onclick="openClose(\'' . $type . 'list-' . $id . '\');" >'
1801 . $cnt . ' ' . t('people') . '</span> ' . (($type === 'like') ? t('like this.') : t('don\'t like this.')) . EOL ;
1802 $total = count($arr);
1803 if($total >= MAX_LIKERS)
1804 $arr = array_slice($arr, 0, MAX_LIKERS - 1);
1805 if($total < MAX_LIKERS)
1806 $arr[count($arr)-1] = t('and') . ' ' . $arr[count($arr)-1];
1807 $str = implode(', ', $arr);
1808 if($total >= MAX_LIKERS)
1809 $str .= t(', and ') . $total - MAX_LIKERS . t(' other people');
1810 $str .= (($type === 'like') ? t(' like this.') : t(' don\'t like this.'));
1811 $o .= "\t" . '<div id="' . $type . 'list-' . $id . '" style="display: none;" >' . $str . '</div>';
1817 // wrapper to load a view template, checking for alternate
1818 // languages before falling back to the default
1820 if(! function_exists('load_view_file')) {
1821 function load_view_file($s) {
1824 $lang = get_config('system','language');
1827 if(file_exists("$d/$lang/$b"))
1828 return file_get_contents("$d/$lang/$b");
1829 return file_get_contents($s);
1832 // for html,xml parsing - let's say you've got
1833 // an attribute foobar="class1 class2 class3"
1834 // and you want to find out if it contains 'class3'.
1835 // you can't use a normal sub string search because you
1836 // might match 'notclass3' and a regex to do the job is
1837 // possible but a bit complicated.
1838 // pass the attribute string as $attr and the attribute you
1839 // are looking for as $s - returns true if found, otherwise false
1841 if(! function_exists('attribute_contains')) {
1842 function attribute_contains($attr,$s) {
1843 $a = explode(' ', $attr);
1844 if(count($a) && in_array($s,$a))
1849 if(! function_exists('logger')) {
1850 function logger($msg,$level = 0) {
1851 $debugging = get_config('system','debugging');
1852 $loglevel = intval(get_config('system','loglevel'));
1853 $logfile = get_config('system','logfile');
1855 if((! $debugging) || (! $logfile) || ($level > $loglevel))
1858 @file_put_contents($logfile, datetime_convert() . ':' . session_id() . ' ' . $msg . "\n", FILE_APPEND);
1863 if(! function_exists('activity_match')) {
1864 function activity_match($haystack,$needle) {
1865 if(($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle,NAMESPACE_ACTIVITY_SCHEMA)))
1871 // Pull out all #hashtags and @person tags from $s;
1872 // We also get @person@domain.com - which would make
1873 // the regex quite complicated as tags can also
1874 // end a sentence. So we'll run through our results
1875 // and strip the period from any tags which end with one.
1876 // Returns array of tags found, or empty array.
1879 if(! function_exists('get_tags')) {
1880 function get_tags($s) {
1883 // ignore anything in a code block
1885 $s = preg_replace('/\[code\](.*?)\[\/code\]/sm','',$s);
1887 if(preg_match_all('/([@#][^ \x0D\x0A,:?]+)([ \x0D\x0A,:?]|$)/',$s,$match)) {
1888 foreach($match[1] as $match) {
1889 if(strstr($match,"]")) {
1890 // we might be inside a bbcode color tag - leave it alone
1893 if(substr($match,-1,1) === '.')
1894 $ret[] = substr($match,0,-1);
1904 // quick and dirty quoted_printable encoding
1906 if(! function_exists('qp')) {
1908 return str_replace ("%","=",rawurlencode($s));
1912 if(! function_exists('like_puller')) {
1913 function like_puller($a,$item,&$arr,$mode) {
1917 $verb = (($mode === 'like') ? ACTIVITY_LIKE : ACTIVITY_DISLIKE);
1919 if((activity_match($item['verb'],$verb)) && ($item['id'] != $item['parent'])) {
1920 $url = $item['author-link'];
1921 if((local_user()) && (local_user() == $item['uid']) && ($item['network'] === 'dfrn') && (! $item['self']) && (link_compare($item['author-link'],$item['url']))) {
1922 $url = $a->get_baseurl() . '/redir/' . $item['contact-id'];
1923 $sparkle = ' class="sparkle" ';
1925 if(! ((isset($arr[$item['parent'] . '-l'])) && (is_array($arr[$item['parent'] . '-l']))))
1926 $arr[$item['parent'] . '-l'] = array();
1927 if(! isset($arr[$item['parent']]))
1928 $arr[$item['parent']] = 1;
1930 $arr[$item['parent']] ++;
1931 $arr[$item['parent'] . '-l'][] = '<a href="'. $url . '"'. $sparkle .'>' . $item['author-name'] . '</a>';
1936 if(! function_exists('get_mentions')) {
1937 function get_mentions($item) {
1939 if(! strlen($item['tag']))
1942 $arr = explode(',',$item['tag']);
1943 foreach($arr as $x) {
1945 if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
1946 $o .= "\t\t" . '<link rel="mentioned" href="' . $matches[1] . '" />' . "\r\n";
1947 $o .= "\t\t" . '<link rel="ostatus:attention" href="' . $matches[1] . '" />' . "\r\n";
1953 if(! function_exists('contact_block')) {
1954 function contact_block() {
1958 $shown = get_pconfig($a->profile['uid'],'system','display_friend_count');
1962 if((! is_array($a->profile)) || ($a->profile['hide-friends']))
1964 $r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0",
1965 intval($a->profile['uid'])
1968 $total = intval($r[0]['total']);
1971 $o .= '<h4 class="contact-h4">' . t('No contacts') . '</h4>';
1974 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0 ORDER BY RAND() LIMIT %d",
1975 intval($a->profile['uid']),
1979 $o .= '<h4 class="contact-h4">' . $total . ' ' . t('Contacts') . '</h4><div id="contact-block">';
1980 foreach($r as $rr) {
1981 $redirect_url = $a->get_baseurl() . '/redir/' . $rr['id'];
1982 if(local_user() && ($rr['uid'] == local_user())
1983 && ($rr['network'] === 'dfrn')) {
1984 $url = $redirect_url;
1985 $sparkle = ' sparkle';
1992 $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";
1994 $o .= '</div><div id="contact-block-end"></div>';
1995 $o .= '<div id="viewcontacts"><a id="viewcontacts-link" href="viewcontacts/' . $a->profile['nickname'] . '">' . t('View Contacts') . '</a></div>';
1999 $arr = array('contacts' => $r, 'output' => $o);
2001 call_hooks('contact_block_end', $arr);
2006 if(! function_exists('search')) {
2007 function search($s) {
2009 $o = '<div id="search-box">';
2010 $o .= '<form action="' . $a->get_baseurl() . '/search' . '" method="get" >';
2011 $o .= '<input type="text" name="search" id="search-text" value="' . $s .'" />';
2012 $o .= '<input type="submit" name="submit" id="search-submit" value="' . t('Search') . '" />';
2013 $o .= '</form></div>';
2017 if(! function_exists('valid_email')) {
2018 function valid_email($x){
2019 if(preg_match('/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/',$x))
2025 if(! function_exists('gravatar_img')) {
2026 function gravatar_img($email) {
2028 $opt = 'identicon'; // psuedo-random geometric pattern if not found
2030 $hash = md5(trim(strtolower($email)));
2032 $url = 'http://www.gravatar.com/avatar/' . $hash . '.jpg'
2033 . '?s=' . $size . '&d=' . $opt . '&r=' . $rating;
2035 logger('gravatar: ' . $email . ' ' . $url);
2039 if(! function_exists('aes_decrypt')) {
2040 function aes_decrypt($val,$ky)
2042 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2043 for($a=0;$a<strlen($ky);$a++)
2044 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2045 $mode = MCRYPT_MODE_ECB;
2046 $enc = MCRYPT_RIJNDAEL_128;
2047 $dec = @mcrypt_decrypt($enc, $key, $val, $mode, @mcrypt_create_iv( @mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM ) );
2048 return rtrim($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));
2052 if(! function_exists('aes_encrypt')) {
2053 function aes_encrypt($val,$ky)
2055 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2056 for($a=0;$a<strlen($ky);$a++)
2057 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2058 $mode=MCRYPT_MODE_ECB;
2059 $enc=MCRYPT_RIJNDAEL_128;
2060 $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
2061 return mcrypt_encrypt($enc, $key, $val, $mode, mcrypt_create_iv( mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM));
2069 * Replace naked text hyperlink with HTML formatted hyperlink
2073 if(! function_exists('linkify')) {
2074 function linkify($s) {
2075 $s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%\$\!\+]*)/", ' <a href="$1" target="external-link">$1</a>', $s);
2085 * Replaces text emoticons with graphical images
2087 * @Parameter: string $s
2092 if(! function_exists('smilies')) {
2093 function smilies($s) {
2097 array( '<3', '</3', '<\\3', ':-)', ';-)', ':-(', ':(', ':-P', ':-"', ':-x', ':-X', ':-D', '8-|', '8-O'),
2099 '<img src="' . $a->get_baseurl() . '/images/smiley-heart.gif" alt="<3" />',
2100 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="</3" />',
2101 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="<\\3" />',
2102 '<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":-)" />',
2103 '<img src="' . $a->get_baseurl() . '/images/smiley-wink.gif" alt=";-)" />',
2104 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":-(" />',
2105 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":(" />',
2106 '<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":-P" />',
2107 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-\"" />',
2108 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-x" />',
2109 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-X" />',
2110 '<img src="' . $a->get_baseurl() . '/images/smiley-laughing.gif" alt=":-D" />',
2111 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-|" />',
2112 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-O" />'
2119 * Function : profile_load
2121 * @parameter string $nickname
2122 * @parameter int $profile
2124 * Summary: Loads a profile into the page sidebar.
2125 * The function requires a writeable copy of the main App structure, and the nickname
2126 * of a registered local account.
2128 * If the viewer is an authenticated remote viewer, the profile displayed is the
2129 * one that has been configured for his/her viewing in the Contact manager.
2130 * Passing a non-zero profile ID can also allow a preview of a selected profile
2133 * Profile information is placed in the App structure for later retrieval.
2134 * Honours the owner's chosen theme for display.
2138 if(! function_exists('profile_load')) {
2139 function profile_load(&$a, $nickname, $profile = 0) {
2141 $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
2142 intval($_SESSION['visitor_id']));
2144 $profile = $r[0]['profile-id'];
2150 $profile_int = intval($profile);
2151 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2152 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2153 WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d LIMIT 1",
2155 intval($profile_int)
2159 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2160 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2161 WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 LIMIT 1",
2166 if(($r === false) || (! count($r))) {
2167 notice( t('No profile') . EOL );
2172 $a->profile = $r[0];
2175 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
2176 $_SESSION['theme'] = $a->profile['theme'];
2178 if(! (x($a->page,'aside')))
2179 $a->page['aside'] = '';
2181 $a->page['aside'] .= profile_sidebar($a->profile);
2182 $a->page['aside'] .= contact_block();
2190 * Function: profile_sidebar
2192 * Formats a profile for display in the sidebar.
2193 * It is very difficult to templatise the HTML completely
2194 * because of all the conditional logic.
2196 * @parameter: array $profile
2198 * Returns HTML string stuitable for sidebar inclusion
2199 * Exceptions: Returns empty string if passed $profile is wrong type or not populated
2204 if(! function_exists('profile_sidebar')) {
2205 function profile_sidebar($profile) {
2211 if((! is_array($profile)) && (! count($profile)))
2214 call_hooks('profile_sidebar_enter', $profile);
2216 $fullname = '<div class="fn">' . $profile['name'] . '</div>';
2218 $pdesc = '<div class="title">' . $profile['pdesc'] . '</div>';
2222 $photo = '<div id="profile-photo-wrapper"><img class="photo" src="' . $profile['photo'] . '" alt="' . $profile['name'] . '" /></div>';
2224 $connect = (($profile['uid'] != local_user()) ? '<li><a id="dfrn-request-link" href="dfrn_request/' . $profile['nickname'] . '">' . t('Connect') . '</a></li>' : '');
2226 if((x($profile,'address') == 1)
2227 || (x($profile,'locality') == 1)
2228 || (x($profile,'region') == 1)
2229 || (x($profile,'postal-code') == 1)
2230 || (x($profile,'country-name') == 1))
2234 $location .= '<div class="location"><span class="location-label">' . t('Location:') . '</span> <div class="adr">';
2235 $location .= ((x($profile,'address') == 1) ? '<div class="street-address">' . $profile['address'] . '</div>' : '');
2236 $location .= (((x($profile,'locality') == 1) || (x($profile,'region') == 1) || (x($profile,'postal-code') == 1))
2237 ? '<span class="city-state-zip"><span class="locality">' . $profile['locality'] . '</span>'
2238 . ((x($profile['locality']) == 1) ? t(', ') : '')
2239 . '<span class="region">' . $profile['region'] . '</span>'
2240 . ' <span class="postal-code">' . $profile['postal-code'] . '</span></span>' : '');
2241 $location .= ((x($profile,'country-name') == 1) ? ' <span class="country-name">' . $profile['country-name'] . '</span>' : '');
2242 $location .= '</div></div><div class="profile-clear"></div>';
2246 $gender = ((x($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>' : '');
2248 $pubkey = ((x($profile,'pubkey') == 1) ? '<div class="key" style="display:none;">' . $profile['pubkey'] . '</div>' : '');
2250 $marital = ((x($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>' : '');
2252 $homepage = ((x($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>' : '');
2254 $tpl = load_view_file('view/profile_vcard.tpl');
2256 $o .= replace_macros($tpl, array(
2257 '$fullname' => $fullname,
2261 '$connect' => $connect,
2262 '$location' => $location,
2263 '$gender' => $gender,
2264 '$pubkey' => $pubkey,
2265 '$marital' => $marital,
2266 '$homepage' => $homepage
2270 $arr = array('profile' => $profile, 'entry' => $o);
2272 call_hooks('profile_sidebar', $arr);
2278 if(! function_exists('register_hook')) {
2279 function register_hook($hook,$file,$function) {
2281 $r = q("SELECT * FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2289 $r = q("INSERT INTO `hook` (`hook`, `file`, `function`) VALUES ( '%s', '%s', '%s' ) ",
2297 if(! function_exists('unregister_hook')) {
2298 function unregister_hook($hook,$file,$function) {
2300 $r = q("DELETE FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2309 if(! function_exists('load_hooks')) {
2310 function load_hooks() {
2312 $a->hooks = array();
2313 $r = q("SELECT * FROM `hook` WHERE 1");
2315 foreach($r as $rr) {
2316 $a->hooks[] = array($rr['hook'], $rr['file'], $rr['function']);
2322 if(! function_exists('call_hooks')) {
2323 function call_hooks($name, &$data = null) {
2326 if(count($a->hooks)) {
2327 foreach($a->hooks as $hook) {
2328 if($hook[HOOK_HOOK] === $name) {
2329 @include_once($hook[HOOK_FILE]);
2330 if(function_exists($hook[HOOK_FUNCTION])) {
2331 $func = $hook[HOOK_FUNCTION];
2340 if(! function_exists('day_translate')) {
2341 function day_translate($s) {
2342 $ret = str_replace(array('Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'),
2343 array( t('Monday'), t('Tuesday'), t('Wednesday'), t('Thursday'), t('Friday'), t('Saturday'), t('Sunday')),
2346 $ret = str_replace(array('January','February','March','April','May','June','July','August','September','October','November','December'),
2347 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')),
2353 if(! function_exists('get_birthdays')) {
2354 function get_birthdays() {
2362 $bd_format = get_config('system','birthday_format');
2364 $bd_format = 'g A l F d' ; // 8 AM Friday January 18
2366 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
2367 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
2368 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
2369 ORDER BY `start` DESC ",
2370 intval(local_user()),
2371 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
2372 dbesc(datetime_convert('UTC','UTC','now'))
2375 if($r && count($r)) {
2376 $o .= '<div id="birthday-wrapper"><div id="birthday-title">' . t('Birthdays this week:') . '</div>';
2377 $o .= '<div id="birthday-adjust">' . t("\x28Adjusted for local time\x29") . '</div>';
2378 $o .= '<div id="birthday-title-end"></div>';
2380 foreach($r as $rr) {
2381 $now = strtotime('now');
2382 $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
2384 $o .= '<div class="birthday-list" id="birthday-' . $rr['eid'] . '"><a class="sparkle" href="'
2385 . $a->get_baseurl() . '/redir/' . $rr['cid'] . '">' . $rr['name'] . '</a> '
2386 . day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $bd_format)) . (($today) ? ' ' . t('[today]') : '')
2399 * Compare two URLs to see if they are the same, but ignore
2400 * slight but hopefully insignificant differences such as if one
2401 * is https and the other isn't, or if one is www.something and
2402 * the other isn't - and also ignore case differences.
2404 * Return true if the URLs match, otherwise false.
2408 if(! function_exists('link_compare')) {
2409 function link_compare($a,$b) {
2410 $a1 = str_replace(array('https:','//www.'), array('http:','//'), $a);
2411 $b1 = str_replace(array('https:','//www.'), array('http:','//'), $b);
2412 if(strcasecmp($a1,$b1) === 0)
2418 if(! function_exists('prepare_body')) {
2419 function prepare_body($item) {
2421 require_once('include/bbcode.php');
2423 $s = smilies(bbcode($item['body']));
2430 * Wrap calls to proc_close(proc_open()) and call hook
2431 * so plugins can take part in process :)
2434 * $cmd program to run
2435 * next args are passed as $cmd command line
2437 * e.g.: proc_run("ls","-la","/tmp");
2439 * $cmd and string args are surrounded with ""
2442 if(! function_exists('proc_run')) {
2443 function proc_run($cmd){
2447 $args = func_get_args();
2448 call_hooks("proc_run", $args);
2450 if(count($args) && $args[0] === 'php')
2451 $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
2453 foreach ($args as $arg){
2454 $arg = escapeshellarg($arg);
2456 $cmdline = implode($args," ");
2457 proc_close(proc_open($cmdline." &",array(),$foo));
2461 * Return full URL to theme which is currently in effect.
2462 * Provide a sane default if nothing is chosen or the specified theme does not exist.
2465 if(! function_exists('current_theme_url')) {
2466 function current_theme_url() {
2468 $app_base_themes = array('duepuntozero', 'loozah');
2472 $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
2473 $theme_name = ((x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
2475 if($theme_name && file_exists('view/theme/' . $theme_name . '/style.css'))
2476 return($a->get_baseurl() . '/view/theme/' . $theme_name . '/style.css');
2478 foreach($app_base_themes as $t) {
2479 if(file_exists('view/theme/' . $t . '/style.css'))
2480 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
2483 $fallback = glob('view/theme/*/style.css');
2484 if(count($fallback))
2485 return($a->get_baseurl() . $fallback[0]);
2490 if(! function_exists('feed_birthday')) {
2491 function feed_birthday($uid,$tz) {
2495 * Determine the next birthday, but only if the birthday is published
2496 * in the default profile. We _could_ also look for a private profile that the
2497 * recipient can see, but somebody could get mad at us if they start getting
2498 * public birthday greetings when they haven't made this info public.
2500 * Assuming we are able to publish this info, we are then going to convert
2501 * the start time from the owner's timezone to UTC.
2503 * This will potentially solve the problem found with some social networks
2504 * where birthdays are converted to the viewer's timezone and salutations from
2505 * elsewhere in the world show up on the wrong day. We will convert it to the
2506 * viewer's timezone also, but first we are going to convert it from the birthday
2507 * person's timezone to GMT - so the viewer may find the birthday starting at
2508 * 6:00PM the day before, but that will correspond to midnight to the birthday person.
2514 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
2518 if($p && count($p)) {
2519 $tmp_dob = substr($p[0]['dob'],5);
2520 if(intval($tmp_dob)) {
2521 $y = datetime_convert($tz,$tz,'now','Y');
2522 $bd = $y . '-' . $tmp_dob . ' 00:00';
2523 $t_dob = strtotime($bd);
2524 $now = strtotime(datetime_convert($tz,$tz,'now'));
2526 $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
2527 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
2535 * return atom link elements for all of our hubs
2538 if(! function_exists('feed_hublinks')) {
2539 function feed_hublinks() {
2541 $hub = get_config('system','huburl');
2545 $hubs = explode(',', $hub);
2547 foreach($hubs as $h) {
2551 $hubxml .= '<link rel="hub" href="' . xmlify($h) . '" />' . "\n" ;
2558 /* return atom link elements for salmon endpoints */
2560 if(! function_exists('feed_salmonlinks')) {
2561 function feed_salmonlinks($nick) {
2565 $salmon = '<link rel="salmon" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2567 // old style links that status.net still needed as of 12/2010
2569 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-replies" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2570 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-mention" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2574 if(! function_exists('get_plink')) {
2575 function get_plink($item) {
2577 $plink = (((x($item,'plink')) && (! $item['private'])) ? '<div class="wall-item-links-wrapper"><a href="'
2578 . $item['plink'] . '" title="' . t('link to source') . '" target="external-link" ><img src="' . $a->get_baseurl() . '/images/remote-link.gif" alt="' . t('link to source') . '" /></a></div>' : '');
2582 if(! function_exists('unamp')) {
2583 function unamp($s) {
2584 return str_replace('&', '&', $s);