5 define ( 'BUILD_ID', 1039 );
6 define ( 'FRIENDIKA_VERSION', '2.10.0907' );
7 define ( 'DFRN_PROTOCOL_VERSION', '2.1' );
9 define ( 'EOL', "<br />\r\n" );
10 define ( 'ATOM_TIME', 'Y-m-d\TH:i:s\Z' );
11 define ( 'DOWN_ARROW', '⇩' );
15 * SSL redirection policies
18 define ( 'SSL_POLICY_NONE', 0 );
19 define ( 'SSL_POLICY_FULL', 1 );
20 define ( 'SSL_POLICY_SELFSIGN', 2 );
27 define ( 'LOGGER_NORMAL', 0 );
28 define ( 'LOGGER_TRACE', 1 );
29 define ( 'LOGGER_DEBUG', 2 );
30 define ( 'LOGGER_DATA', 3 );
31 define ( 'LOGGER_ALL', 4 );
34 * registration policies
37 define ( 'REGISTER_CLOSED', 0 );
38 define ( 'REGISTER_APPROVE', 1 );
39 define ( 'REGISTER_OPEN', 2 );
45 define ( 'REL_VIP', 1);
46 define ( 'REL_FAN', 2);
47 define ( 'REL_BUD', 3);
53 define ( 'HOOK_HOOK', 0);
54 define ( 'HOOK_FILE', 1);
55 define ( 'HOOK_FUNCTION', 2);
61 * PAGE_NORMAL is a typical personal profile account
62 * PAGE_SOAPBOX automatically approves all friend requests as REL_FAN, (readonly)
63 * PAGE_COMMUNITY automatically approves all friend requests as REL_FAN, but with
64 * write access to wall and comments (no email and not included in page owner's ACL lists)
65 * PAGE_FREELOVE automatically approves all friend requests as full friends (REL_BUD).
69 define ( 'PAGE_NORMAL', 0 );
70 define ( 'PAGE_SOAPBOX', 1 );
71 define ( 'PAGE_COMMUNITY', 2 );
72 define ( 'PAGE_FREELOVE', 3 );
75 * Maximum number of "people who like (or don't like) this" that we will list by name
78 define ( 'MAX_LIKERS', 75);
81 * email notification options
84 define ( 'NOTIFY_INTRO', 0x0001 );
85 define ( 'NOTIFY_CONFIRM', 0x0002 );
86 define ( 'NOTIFY_WALL', 0x0004 );
87 define ( 'NOTIFY_COMMENT', 0x0008 );
88 define ( 'NOTIFY_MAIL', 0x0010 );
91 * various namespaces we may need to parse
94 define ( 'NAMESPACE_DFRN' , 'http://purl.org/macgirvin/dfrn/1.0' );
95 define ( 'NAMESPACE_THREAD' , 'http://purl.org/syndication/thread/1.0' );
96 define ( 'NAMESPACE_TOMB' , 'http://purl.org/atompub/tombstones/1.0' );
97 define ( 'NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/' );
98 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
99 define ( 'NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia' );
100 define ( 'NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env' );
101 define ( 'NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe' );
102 define ( 'NAMESPACE_GEORSS', 'http://www.georss.org/georss' );
103 define ( 'NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0' );
104 define ( 'NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from' );
107 * activity stream defines
110 define ( 'ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like' );
111 define ( 'ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike' );
112 define ( 'ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart' );
114 define ( 'ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
115 define ( 'ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
116 define ( 'ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
117 define ( 'ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post' );
118 define ( 'ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update' );
119 define ( 'ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
121 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
122 define ( 'ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note' );
123 define ( 'ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person' );
124 define ( 'ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
125 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
126 define ( 'ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
129 * item weight for query ordering
132 define ( 'GRAVITY_PARENT', 0);
133 define ( 'GRAVITY_LIKE', 3);
134 define ( 'GRAVITY_COMMENT', 6);
138 * Reverse the effect of magic_quotes_gpc if it is enabled.
139 * Please disable magic_quotes_gpc so we don't have to do this.
140 * See http://php.net/manual/en/security.magicquotes.disabling.php
144 if (get_magic_quotes_gpc()) {
145 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
146 while (list($key, $val) = each($process)) {
147 foreach ($val as $k => $v) {
148 unset($process[$key][$k]);
150 $process[$key][stripslashes($k)] = $v;
151 $process[] = &$process[$key][stripslashes($k)];
153 $process[$key][stripslashes($k)] = stripslashes($v);
165 * Our main application structure for the life of this page
166 * Primarily deals with the URL that got us here
167 * and tries to make some sense of it, and
168 * stores our page contents and config storage
169 * and anything else that might need to be passed around
170 * before we spit the page out.
174 if(! class_exists('App')) {
177 public $module_loaded = false;
178 public $query_string;
187 public $error = false;
197 public $interactive = true;
207 private $curl_headers;
209 function __construct() {
211 $this->config = array();
212 $this->page = array();
213 $this->pager= array();
215 $this->query_string = '';
217 $this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'])) ? 'https' : 'http' );
219 if(x($_SERVER,'SERVER_NAME')) {
220 $this->hostname = $_SERVER['SERVER_NAME'];
223 * Figure out if we are running at the top of a domain
224 * or in a sub-directory and adjust accordingly
227 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
228 if(isset($path) && strlen($path) && ($path != $this->path))
232 set_include_path("include/$this->hostname" . PATH_SEPARATOR . 'include' . PATH_SEPARATOR . '.' );
234 if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=")
235 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
237 $this->cmd = trim($_GET['q'],'/\\');
243 * Break the URL path into C style argc/argv style arguments for our
244 * modules. Given "http://example.com/module/arg1/arg2", $this->argc
245 * will be 3 (integer) and $this->argv will contain:
251 * There will always be one argument. If provided a naked domain
252 * URL, $this->argv[0] is set to "home".
256 $this->argv = explode('/',$this->cmd);
257 $this->argc = count($this->argv);
258 if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
259 $this->module = $this->argv[0];
262 $this->module = 'home';
266 * Special handling for the webfinger/lrdd host XRD file
267 * Just spit out the contents and exit.
270 if($this->cmd === '.well-known/host-meta')
271 require_once('include/hostxrd.php');
275 * See if there is any page number information, and initialise
279 $this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1);
280 $this->pager['itemspage'] = 50;
281 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
282 $this->pager['total'] = 0;
285 function get_baseurl($ssl = false) {
287 $scheme = $this->scheme;
289 if(x($this->config,'ssl_policy')) {
290 if(($ssl) || ($this->config['ssl_policy'] == SSL_POLICY_FULL))
292 if(($this->config['ssl_policy'] == SSL_POLICY_SELFSIGN) && (local_user() || x($_POST,'auth-params')))
296 $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
297 return $this->baseurl;
300 function set_baseurl($url) {
301 $parsed = parse_url($url);
303 $this->baseurl = $url;
306 $this->scheme = $parsed['scheme'];
308 $this->hostname = $parsed['host'];
309 if(x($parsed,'port'))
310 $this->hostname .= ':' . $parsed['port'];
311 if(x($parsed,'path'))
312 $this->path = trim($parsed['path'],'\\/');
317 function get_hostname() {
318 return $this->hostname;
321 function set_hostname($h) {
322 $this->hostname = $h;
325 function set_path($p) {
326 $this->path = trim(trim($p),'/');
329 function get_path() {
333 function set_pager_total($n) {
334 $this->pager['total'] = intval($n);
337 function set_pager_itemspage($n) {
338 $this->pager['itemspage'] = intval($n);
339 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
343 function init_pagehead() {
344 $this->page['title'] = $this->config['sitename'];
345 $tpl = load_view_file("view/head.tpl");
346 $this->page['htmlhead'] = replace_macros($tpl,array(
347 '$baseurl' => $this->get_baseurl() . '/',
348 '$generator' => 'Friendika' . ' ' . FRIENDIKA_VERSION
352 function set_curl_code($code) {
353 $this->curl_code = $code;
356 function get_curl_code() {
357 return $this->curl_code;
360 function set_curl_headers($headers) {
361 $this->curl_headers = $headers;
364 function get_curl_headers() {
365 return $this->curl_headers;
371 // retrieve the App structure
372 // useful in functions which require it but don't get it passed to them
374 if(! function_exists('get_app')) {
381 // Multi-purpose function to check variable state.
382 // Usage: x($var) or $x($array,'key')
383 // returns false if variable/key is not set
384 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
385 // e.g. x('') or x(0) returns 0;
387 if(! function_exists('x')) {
388 function x($s,$k = NULL) {
390 if((is_array($s)) && (array_key_exists($k,$s))) {
408 // called from db initialisation if db is dead.
410 if(! function_exists('system_unavailable')) {
411 function system_unavailable() {
412 include('system_unavailable.php');
416 // Primarily involved with database upgrade, but also sets the
417 // base url for use in cmdline programs which don't have
418 // $_SERVER variables, and synchronising the state of installed plugins.
421 if(! function_exists('check_config')) {
422 function check_config(&$a) {
425 load_config('system');
427 if(! x($_SERVER,'SERVER_NAME'))
430 $build = get_config('system','build');
432 $build = set_config('system','build',BUILD_ID);
434 $url = get_config('system','url');
436 $url = set_config('system','url',$a->get_baseurl());
438 if($build != BUILD_ID) {
439 $stored = intval($build);
440 $current = intval(BUILD_ID);
441 if(($stored < $current) && file_exists('update.php')) {
442 // We're reporting a different version than what is currently installed.
443 // Run any existing update scripts to bring the database up to current.
445 require_once('update.php');
446 for($x = $stored; $x < $current; $x ++) {
447 if(function_exists('update_' . $x)) {
448 $func = 'update_' . $x;
452 set_config('system','build', BUILD_ID);
458 * Synchronise plugins:
460 * $a->config['system']['addon'] contains a comma-separated list of names
461 * of plugins/addons which are used on this system.
462 * Go through the database list of already installed addons, and if we have
463 * an entry, but it isn't in the config list, call the uninstall procedure
464 * and mark it uninstalled in the database (for now we'll remove it).
465 * Then go through the config list and if we have a plugin that isn't installed,
466 * call the install procedure and add it to the database.
470 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
474 $installed = array();
476 $plugins = get_config('system','addon');
477 $plugins_arr = array();
480 $plugins_arr = explode(',',str_replace(' ', '',$plugins));
482 $a->plugins = $plugins_arr;
484 $installed_arr = array();
486 if(count($installed)) {
487 foreach($installed as $i) {
488 if(! in_array($i['name'],$plugins_arr)) {
489 logger("Addons: uninstalling " . $i['name']);
490 q("DELETE FROM `addon` WHERE `id` = %d LIMIT 1",
494 @include_once('addon/' . $i['name'] . '/' . $i['name'] . '.php');
495 if(function_exists($i['name'] . '_uninstall')) {
496 $func = $i['name'] . '_uninstall';
501 $installed_arr[] = $i['name'];
505 if(count($plugins_arr)) {
506 foreach($plugins_arr as $p) {
507 if(! in_array($p,$installed_arr)) {
508 logger("Addons: installing " . $p);
509 @include_once('addon/' . $p . '/' . $p . '.php');
510 if(function_exists($p . '_install')) {
511 $func = $p . '_install';
513 $r = q("INSERT INTO `addon` (`name`, `installed`) VALUES ( '%s', 1 ) ",
526 // This is our template processor.
527 // $s is the string requiring macro substitution.
528 // $r is an array of key value pairs (search => replace)
529 // returns substituted string.
530 // WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other.
531 // For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing,
532 // depending on the order in which they were declared in the array.
534 if(! function_exists('replace_macros')) {
535 function replace_macros($s,$r) {
540 if(is_array($r) && count($r)) {
541 foreach ($r as $k => $v ) {
546 return str_replace($search,$replace,$s);
550 // load string translation table for alternate language
552 if(! function_exists('load_translation_table')) {
553 function load_translation_table($lang) {
556 if(file_exists("view/$lang/strings.php"))
557 include("view/$lang/strings.php");
560 // translate string if translation exists
562 if(! function_exists('t')) {
567 if(x($a->strings,$s))
568 return $a->strings[$s];
572 // curl wrapper. If binary flag is true, return binary
575 if(! function_exists('fetch_url')) {
576 function fetch_url($url,$binary = false, &$redirects = 0) {
580 $ch = curl_init($url);
581 if(($redirects > 8) || (! $ch))
584 curl_setopt($ch, CURLOPT_HEADER, true);
585 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
588 $curl_time = intval(get_config('system','curl_timeout'));
589 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
591 // by default we will allow self-signed certs
592 // but you can override this
594 $check_cert = get_config('system','verifyssl');
595 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
597 $prx = get_config('system','proxy');
599 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
600 curl_setopt($ch, CURLOPT_PROXY, $prx);
601 $prxusr = get_config('system','proxyuser');
603 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
606 curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
608 $a->set_curl_code(0);
610 // don't let curl abort the entire application
611 // if it throws any errors.
613 $s = @curl_exec($ch);
615 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
616 $header = substr($s,0,strpos($s,"\r\n\r\n"));
617 if(stristr($header,'100') && (strlen($header) < 30)) {
618 // 100 Continue has two headers, get the real one
619 $s = substr($s,strlen($header)+4);
620 $header = substr($s,0,strpos($s,"\r\n\r\n"));
622 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
624 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
625 $url = trim(array_pop($matches));
626 $url_parsed = parse_url($url);
627 if (isset($url_parsed)) {
629 return fetch_url($url,$binary,$redirects);
632 $a->set_curl_code($http_code);
634 $body = substr($s,strlen($header)+4);
636 /* one more try to make sure there are no more headers */
638 if(strpos($body,'HTTP/') === 0) {
639 $header = substr($body,0,strpos($body,"\r\n\r\n"));
640 $body = substr($body,strlen($header)+4);
643 $a->set_curl_headers($header);
649 // post request to $url. $params is an array of post variables.
651 if(! function_exists('post_url')) {
652 function post_url($url,$params, $headers = null, &$redirects = 0) {
654 $ch = curl_init($url);
655 if(($redirects > 8) || (! $ch))
658 curl_setopt($ch, CURLOPT_HEADER, true);
659 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
660 curl_setopt($ch, CURLOPT_POST,1);
661 curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
663 $curl_time = intval(get_config('system','curl_timeout'));
664 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
666 if(is_array($headers))
667 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
669 $check_cert = get_config('system','verifyssl');
670 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
671 $prx = get_config('system','proxy');
673 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
674 curl_setopt($ch, CURLOPT_PROXY, $prx);
675 $prxusr = get_config('system','proxyuser');
677 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
680 $a->set_curl_code(0);
682 // don't let curl abort the entire application
683 // if it throws any errors.
685 $s = @curl_exec($ch);
687 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
688 $header = substr($s,0,strpos($s,"\r\n\r\n"));
689 if(stristr($header,'100') && (strlen($header) < 30)) {
690 // 100 Continue has two headers, get the real one
691 $s = substr($s,strlen($header)+4);
692 $header = substr($s,0,strpos($s,"\r\n\r\n"));
694 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
696 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
697 $url = trim(array_pop($matches));
698 $url_parsed = parse_url($url);
699 if (isset($url_parsed)) {
701 return post_url($url,$binary,$headers,$redirects);
704 $a->set_curl_code($http_code);
705 $body = substr($s,strlen($header)+4);
707 /* one more try to make sure there are no more headers */
709 if(strpos($body,'HTTP/') === 0) {
710 $header = substr($body,0,strpos($body,"\r\n\r\n"));
711 $body = substr($body,strlen($header)+4);
714 $a->set_curl_headers($header);
720 // random hash, 64 chars
722 if(! function_exists('random_string')) {
723 function random_string() {
724 return(hash('sha256',uniqid(rand(),true)));
728 * This is our primary input filter.
730 * The high bit hack only involved some old IE browser, forget which (IE5/Mac?)
731 * that had an XSS attack vector due to stripping the high-bit on an 8-bit character
732 * after cleansing, and angle chars with the high bit set could get through as markup.
734 * This is now disabled because it was interfering with some legitimate unicode sequences
735 * and hopefully there aren't a lot of those browsers left.
737 * Use this on any text input where angle chars are not valid or permitted
738 * They will be replaced with safer brackets. This may be filtered further
739 * if these are not allowed either.
743 if(! function_exists('notags')) {
744 function notags($string) {
746 return(str_replace(array("<",">"), array('[',']'), $string));
748 // High-bit filter no longer used
749 // return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string));
752 // use this on "body" or "content" input where angle chars shouldn't be removed,
753 // and allow them to be safely displayed.
755 if(! function_exists('escape_tags')) {
756 function escape_tags($string) {
758 return(htmlspecialchars($string));
761 // wrapper for adding a login box. If $register == true provide a registration
762 // link. This will most always depend on the value of $a->config['register_policy'].
763 // returns the complete html for inserting into the page
765 if(! function_exists('login')) {
766 function login($register = false) {
768 $register_html = (($register) ? load_view_file("view/register-link.tpl") : "");
770 $noid = get_config('system','no_openid');
772 $classname = 'no-openid';
773 $namelabel = t('Nickname or Email address: ');
774 $passlabel = t('Password: ');
778 $classname = 'openid';
779 $namelabel = t('Nickname/Email/OpenID: ');
780 $passlabel = t("Password \x28if not OpenID\x29: ");
783 $lostpass = t('Forgot your password?');
784 $lostlink = t('Password Reset');
787 $tpl = load_view_file("view/logout.tpl");
790 $tpl = load_view_file("view/login.tpl");
794 $o = replace_macros($tpl,array(
795 '$register_html' => $register_html,
796 '$classname' => $classname,
797 '$namelabel' => $namelabel,
798 '$passlabel' => $passlabel,
800 '$lostpass' => $lostpass,
801 '$lostlink' => $lostlink
807 // generate a string that's random, but usually pronounceable.
808 // used to generate initial passwords
810 if(! function_exists('autoname')) {
811 function autoname($len) {
813 $vowels = array('a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u');
814 if(mt_rand(0,5) == 4)
832 's','sc','sh','sm','sp','st',
840 $midcons = array('ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
841 'nd','ng','nk','nt','rn','rp','rt');
843 $noend = array('bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
844 'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh');
846 $start = mt_rand(0,2);
854 for ($x = 0; $x < $len; $x ++) {
855 $r = mt_rand(0,count($table) - 1);
858 if($table == $vowels)
859 $table = array_merge($cons,$midcons);
865 $word = substr($word,0,$len);
867 foreach($noend as $noe) {
868 if((strlen($word) > 2) && (substr($word,-2) == $noe)) {
869 $word = substr($word,0,-1);
873 if(substr($word,-1) == 'q')
874 $word = substr($word,0,-1);
878 // Used to end the current process, after saving session state.
880 if(! function_exists('killme')) {
882 session_write_close();
886 // redirect to another URL and terminate this process.
888 if(! function_exists('goaway')) {
889 function goaway($s) {
890 header("Location: $s");
894 // Generic XML return
895 // Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
896 // of $st and an optional text <message> of $message and terminates the current process.
898 if(! function_exists('xml_status')) {
899 function xml_status($st, $message = '') {
901 $xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
904 logger('xml_status returning non_zero: ' . $st . " message=" . $message);
906 header( "Content-type: text/xml" );
907 echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
908 echo "<result>\r\n\t<status>$st</status>\r\n$xml_message</result>\r\n";
912 // Returns the uid of locally logged in user or false.
914 if(! function_exists('local_user')) {
915 function local_user() {
916 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
917 return intval($_SESSION['uid']);
921 // Returns contact id of authenticated site visitor or false
923 if(! function_exists('remote_user')) {
924 function remote_user() {
925 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
926 return intval($_SESSION['visitor_id']);
930 // contents of $s are displayed prominently on the page the next time
931 // a page is loaded. Usually used for errors or alerts.
933 if(! function_exists('notice')) {
934 function notice($s) {
937 $_SESSION['sysmsg'] .= $s;
940 // wrapper around config to limit the text length of an incoming message
942 if(! function_exists('get_max_import_size')) {
943 function get_max_import_size() {
945 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
949 // escape text ($str) for XML transport
950 // returns escaped text.
952 if(! function_exists('xmlify')) {
953 function xmlify($str) {
956 for($x = 0; $x < strlen($str); $x ++) {
986 $buffer = trim($buffer);
991 // pass xml escaped text ($s), returns unescaped text
993 if(! function_exists('unxmlify')) {
994 function unxmlify($s) {
995 $ret = str_replace('&','&', $s);
996 $ret = str_replace(array('<','>','"','''),array('<','>','"',"'"),$ret);
1000 // convenience wrapper, reverse the operation "bin2hex"
1002 if(! function_exists('hex2bin')) {
1003 function hex2bin($s) {
1004 if(! ctype_xdigit($s)) {
1005 logger('hex2bin: illegal input: ' . print_r(debug_backtrace(), true));
1009 return(pack("H*",$s));
1012 // Automatic pagination.
1013 // To use, get the count of total items.
1014 // Then call $a->set_pager_total($number_items);
1015 // Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page
1016 // Then call paginate($a) after the end of the display loop to insert the pager block on the page
1017 // (assuming there are enough items to paginate).
1018 // When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage']
1019 // will limit the results to the correct items for the current page.
1020 // The actual page handling is then accomplished at the application layer.
1022 if(! function_exists('paginate')) {
1023 function paginate(&$a) {
1025 $stripped = preg_replace('/(&page=[0-9]*)/','',$a->query_string);
1026 $stripped = str_replace('q=','',$stripped);
1027 $stripped = trim($stripped,'/');
1028 $url = $a->get_baseurl() . '/' . $stripped;
1031 if($a->pager['total'] > $a->pager['itemspage']) {
1032 $o .= '<div class="pager">';
1033 if($a->pager['page'] != 1)
1034 $o .= '<span class="pager_prev">'."<a href=\"$url".'&page='.($a->pager['page'] - 1).'">' . t('prev') . '</a></span> ';
1036 $o .= "<span class=\"pager_first\"><a href=\"$url"."&page=1\">" . t('first') . "</a></span> ";
1038 $numpages = $a->pager['total'] / $a->pager['itemspage'];
1041 $numstop = $numpages;
1043 if($numpages > 14) {
1044 $numstart = (($pagenum > 7) ? ($pagenum - 7) : 1);
1045 $numstop = (($pagenum > ($numpages - 7)) ? $numpages : ($numstart + 14));
1048 for($i = $numstart; $i <= $numstop; $i++){
1049 if($i == $a->pager['page'])
1050 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1052 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1056 if(($a->pager['total'] % $a->pager['itemspage']) != 0) {
1057 if($i == $a->pager['page'])
1058 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1060 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1064 $lastpage = (($numpages > intval($numpages)) ? intval($numpages)+1 : $numpages);
1065 $o .= "<span class=\"pager_last\"><a href=\"$url"."&page=$lastpage\">" . t('last') . "</a></span> ";
1067 if(($a->pager['total'] - ($a->pager['itemspage'] * $a->pager['page'])) > 0)
1068 $o .= '<span class="pager_next">'."<a href=\"$url"."&page=".($a->pager['page'] + 1).'">' . t('next') . '</a></span>';
1069 $o .= '</div>'."\r\n";
1074 // Turn user/group ACLs stored as angle bracketed text into arrays
1076 if(! function_exists('expand_acl')) {
1077 function expand_acl($s) {
1078 // turn string array of angle-bracketed elements into numeric array
1079 // e.g. "<1><2><3>" => array(1,2,3);
1083 $t = str_replace('<','',$s);
1084 $a = explode('>',$t);
1085 foreach($a as $aa) {
1087 $ret[] = intval($aa);
1093 // Used to wrap ACL elements in angle brackets for storage
1095 if(! function_exists('sanitise_acl')) {
1096 function sanitise_acl(&$item) {
1098 $item = '<' . intval(notags(trim($item))) . '>';
1103 // retrieve a "family" of config variables from database to cached storage
1105 if(! function_exists('load_config')) {
1106 function load_config($family) {
1108 $r = q("SELECT * FROM `config` WHERE `cat` = '%s'",
1112 foreach($r as $rr) {
1114 $a->config[$family][$k] = $rr['v'];
1119 // get a particular config variable given the family name
1120 // and key. Returns false if not set.
1121 // $instore is only used by the set_config function
1122 // to determine if the key already exists in the DB
1123 // If a key is found in the DB but doesn't exist in
1124 // local config cache, pull it into the cache so we don't have
1125 // to hit the DB again for this item.
1127 if(! function_exists('get_config')) {
1128 function get_config($family, $key, $instore = false) {
1133 if(isset($a->config[$family][$key])) {
1134 if($a->config[$family][$key] === '!<unset>!') {
1137 return $a->config[$family][$key];
1140 $ret = q("SELECT `v` FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1145 $a->config[$family][$key] = $ret[0]['v'];
1146 return $ret[0]['v'];
1149 $a->config[$family][$key] = '!<unset>!';
1154 // Store a config value ($value) in the category ($family)
1155 // under the key ($key)
1156 // Return the value, or false if the database update failed
1158 if(! function_exists('set_config')) {
1159 function set_config($family,$key,$value) {
1163 if(get_config($family,$key,true) === false) {
1164 $ret = q("INSERT INTO `config` ( `cat`, `k`, `v` ) VALUES ( '%s', '%s', '%s' ) ",
1173 $ret = q("UPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1179 $a->config[$family][$key] = $value;
1187 if(! function_exists('load_pconfig')) {
1188 function load_pconfig($uid,$family) {
1190 $r = q("SELECT * FROM `pconfig` WHERE `cat` = '%s' AND `uid` = %d",
1195 foreach($r as $rr) {
1197 $a->config[$uid][$family][$k] = $rr['v'];
1204 if(! function_exists('get_pconfig')) {
1205 function get_pconfig($uid,$family, $key, $instore = false) {
1210 if(isset($a->config[$uid][$family][$key])) {
1211 if($a->config[$uid][$family][$key] === '!<unset>!') {
1214 return $a->config[$uid][$family][$key];
1218 $ret = q("SELECT `v` FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1225 $a->config[$uid][$family][$key] = $ret[0]['v'];
1226 return $ret[0]['v'];
1229 $a->config[$uid][$family][$key] = '!<unset>!';
1234 if(! function_exists('del_config')) {
1235 function del_config($family,$key) {
1238 if(x($a->config[$family],$key))
1239 unset($a->config[$family][$key]);
1240 $ret = q("DELETE FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1249 // Same as above functions except these are for personal config storage and take an
1250 // additional $uid argument.
1252 if(! function_exists('set_pconfig')) {
1253 function set_pconfig($uid,$family,$key,$value) {
1257 if(get_pconfig($uid,$family,$key,true) === false) {
1258 $ret = q("INSERT INTO `pconfig` ( `uid`, `cat`, `k`, `v` ) VALUES ( %d, '%s', '%s', '%s' ) ",
1268 $ret = q("UPDATE `pconfig` SET `v` = '%s' WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1275 $a->config[$uid][$family][$key] = $value;
1282 if(! function_exists('del_pconfig')) {
1283 function del_pconfig($uid,$family,$key) {
1286 if(x($a->config[$uid][$family],$key))
1287 unset($a->config[$uid][$family][$key]);
1288 $ret = q("DELETE FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1297 // convert an XML document to a normalised, case-corrected array
1298 // used by webfinger
1300 if(! function_exists('convert_xml_element_to_array')) {
1301 function convert_xml_element_to_array($xml_element, &$recursion_depth=0) {
1303 // If we're getting too deep, bail out
1304 if ($recursion_depth > 512) {
1308 if (!is_string($xml_element) &&
1309 !is_array($xml_element) &&
1310 (get_class($xml_element) == 'SimpleXMLElement')) {
1311 $xml_element_copy = $xml_element;
1312 $xml_element = get_object_vars($xml_element);
1315 if (is_array($xml_element)) {
1316 $result_array = array();
1317 if (count($xml_element) <= 0) {
1318 return (trim(strval($xml_element_copy)));
1321 foreach($xml_element as $key=>$value) {
1324 $result_array[strtolower($key)] =
1325 convert_xml_element_to_array($value, $recursion_depth);
1328 if ($recursion_depth == 0) {
1329 $temp_array = $result_array;
1330 $result_array = array(
1331 strtolower($xml_element_copy->getName()) => $temp_array,
1335 return ($result_array);
1338 return (trim(strval($xml_element)));
1342 // Given an email style address, perform webfinger lookup and
1343 // return the resulting DFRN profile URL, or if no DFRN profile URL
1344 // is located, returns an OStatus subscription template (prefixed
1345 // with the string 'stat:' to identify it as on OStatus template).
1346 // If this isn't an email style address just return $s.
1347 // Return an empty string if email-style addresses but webfinger fails,
1348 // or if the resultant personal XRD doesn't contain a supported
1349 // subscription/friend-request attribute.
1351 if(! function_exists('webfinger_dfrn')) {
1352 function webfinger_dfrn($s) {
1353 if(! strstr($s,'@')) {
1356 $links = webfinger($s);
1357 logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA);
1359 foreach($links as $link)
1360 if($link['@attributes']['rel'] === NAMESPACE_DFRN)
1361 return $link['@attributes']['href'];
1362 foreach($links as $link)
1363 if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB)
1364 return 'stat:' . $link['@attributes']['template'];
1369 // Given an email style address, perform webfinger lookup and
1370 // return the array of link attributes from the personal XRD file.
1371 // On error/failure return an empty array.
1374 if(! function_exists('webfinger')) {
1375 function webfinger($s) {
1377 if(strstr($s,'@')) {
1378 $host = substr($s,strpos($s,'@') + 1);
1381 $tpl = fetch_lrdd_template($host);
1382 logger('webfinger: lrdd template: ' . $tpl);
1384 $pxrd = str_replace('{uri}', urlencode('acct:' . $s), $tpl);
1385 logger('webfinger: pxrd: ' . $pxrd);
1386 $links = fetch_xrd_links($pxrd);
1387 if(! count($links)) {
1388 // try with double slashes
1389 $pxrd = str_replace('{uri}', urlencode('acct://' . $s), $tpl);
1390 logger('webfinger: pxrd: ' . $pxrd);
1391 $links = fetch_xrd_links($pxrd);
1399 if(! function_exists('lrdd')) {
1400 function lrdd($uri) {
1404 // default priority is host priority, host-meta first
1408 // All we have is an email address. Resource-priority is irrelevant
1409 // because our URI isn't directly resolvable.
1411 if(strstr($uri,'@')) {
1412 return(webfinger($uri));
1415 // get the host meta file
1417 $host = parse_url($uri);
1420 $url = ((x($host,'scheme')) ? $host['scheme'] : 'http') . '://';
1421 $url .= $host['host'] . '/.well-known/host-meta' ;
1426 logger('lrdd: constructed url: ' . $url);
1428 $xml = fetch_url($url);
1429 $headers = $a->get_curl_headers();
1434 logger('lrdd: host_meta: ' . $xml, LOGGER_DATA);
1435 $h = simplexml_load_string($xml);
1436 $arr = convert_xml_element_to_array($h);
1438 if(isset($arr['xrd']['property'])) {
1439 $property = $arr['crd']['property'];
1440 if(! isset($property[0]))
1441 $properties = array($property);
1443 $properties = $property;
1444 foreach($properties as $prop)
1445 if((string) $prop['@attributes'] === 'http://lrdd.net/priority/resource')
1446 $priority = 'resource';
1449 // save the links in case we need them
1453 if(isset($arr['xrd']['link'])) {
1454 $link = $arr['xrd']['link'];
1455 if(! isset($link[0]))
1456 $links = array($link);
1461 // do we have a template or href?
1464 foreach($links as $link) {
1465 if($link['@attributes']['rel'] && attribute_contains($link['@attributes']['rel'],'lrdd')) {
1466 if(x($link['@attributes'],'template'))
1467 $tpl = $link['@attributes']['template'];
1468 elseif(x($link['@attributes'],'href'))
1469 $href = $link['@attributes']['href'];
1474 if((! isset($tpl)) || (! strpos($tpl,'{uri}')))
1477 if($priority === 'host') {
1479 $pxrd = str_replace('{uri}', urlencode($uri), $tpl);
1480 elseif(isset($href))
1483 logger('lrdd: (host priority) pxrd: ' . $pxrd);
1484 $links = fetch_xrd_links($pxrd);
1488 $lines = explode("\n",$headers);
1490 foreach($lines as $line) {
1491 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1492 return(fetch_xrd_links($matches[1]));
1500 // priority 'resource'
1503 $html = fetch_url($uri);
1504 $headers = $a->get_curl_headers();
1505 logger('lrdd: headers=' . $headers, LOGGER_DEBUG);
1507 require_once('library/HTML5/Parser.php');
1508 $dom = @HTML5_Parser::parse($html);
1511 $items = $dom->getElementsByTagName('link');
1512 foreach($items as $item) {
1513 $x = $item->getAttribute('rel');
1515 $pagelink = $item->getAttribute('href');
1521 if(isset($pagelink))
1522 return(fetch_xrd_links($pagelink));
1524 // next look in HTTP headers
1526 $lines = explode("\n",$headers);
1528 foreach($lines as $line) {
1529 // TODO alter the following regex to support multiple relations (space separated)
1530 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1531 $pagelink = $matches[1];
1534 // don't try and run feeds through the html5 parser
1535 if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml'))))
1537 if(stristr($html,'<rss') || stristr($html,'<feed'))
1542 if(isset($pagelink))
1543 return(fetch_xrd_links($pagelink));
1545 // If we haven't found any links, return the host xrd links (which we have already fetched)
1556 // Given a host name, locate the LRDD template from that
1557 // host. Returns the LRDD template or an empty string on
1560 if(! function_exists('fetch_lrdd_template')) {
1561 function fetch_lrdd_template($host) {
1563 $url = 'http://' . $host . '/.well-known/host-meta' ;
1564 $links = fetch_xrd_links($url);
1565 logger('template: ' . print_r($links,true));
1567 foreach($links as $link)
1568 if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd')
1569 $tpl = $link['@attributes']['template'];
1571 if(! strpos($tpl,'{uri}'))
1576 // Given a URL, retrieve the page as an XRD document.
1577 // Return an array of links.
1578 // on error/failure return empty array.
1580 if(! function_exists('fetch_xrd_links')) {
1581 function fetch_xrd_links($url) {
1584 $xml = fetch_url($url);
1588 logger('fetch_xrd_links: ' . $xml, LOGGER_DATA);
1589 $h = simplexml_load_string($xml);
1590 $arr = convert_xml_element_to_array($h);
1594 if(isset($arr['xrd']['link'])) {
1595 $link = $arr['xrd']['link'];
1596 if(! isset($link[0]))
1597 $links = array($link);
1601 if(isset($arr['xrd']['alias'])) {
1602 $alias = $arr['xrd']['alias'];
1603 if(! isset($alias[0]))
1604 $aliases = array($alias);
1607 foreach($aliases as $alias) {
1608 $links[]['@attributes'] = array('rel' => 'alias' , 'href' => $alias);
1612 logger('fetch_xrd_links: ' . print_r($links,true), LOGGER_DATA);
1618 // Convert an ACL array to a storable string
1620 if(! function_exists('perms2str')) {
1621 function perms2str($p) {
1624 if(is_array($tmp)) {
1625 array_walk($tmp,'sanitise_acl');
1626 $ret = implode('',$tmp);
1631 // generate a guaranteed unique (for this domain) item ID for ATOM
1632 // safe from birthday paradox
1634 if(! function_exists('item_new_uri')) {
1635 function item_new_uri($hostname,$uid) {
1639 $hash = random_string();
1641 $uri = "urn:X-dfrn:" . $hostname . ':' . $uid . ':' . $hash;
1643 $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
1647 } while($dups == true);
1651 // Generate a guaranteed unique photo ID.
1652 // safe from birthday paradox
1654 if(! function_exists('photo_new_resource')) {
1655 function photo_new_resource() {
1659 $resource = hash('md5',uniqid(mt_rand(),true));
1660 $r = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1",
1665 } while($found == true);
1670 // Take a URL from the wild, prepend http:// if necessary
1671 // and check DNS to see if it's real
1672 // return true if it's OK, false if something is wrong with it
1674 if(! function_exists('validate_url')) {
1675 function validate_url(&$url) {
1676 if(substr($url,0,4) != 'http')
1677 $url = 'http://' . $url;
1678 $h = parse_url($url);
1680 if(($h) && (dns_get_record($h['host'], DNS_A + DNS_CNAME + DNS_PTR))) {
1686 // checks that email is an actual resolvable internet address
1688 if(! function_exists('validate_email')) {
1689 function validate_email($addr) {
1691 if(! strpos($addr,'@'))
1693 $h = substr($addr,strpos($addr,'@') + 1);
1695 if(($h) && (dns_get_record($h, DNS_A + DNS_CNAME + DNS_PTR + DNS_MX))) {
1701 // Check $url against our list of allowed sites,
1702 // wildcards allowed. If allowed_sites is unset return true;
1703 // If url is allowed, return true.
1704 // otherwise, return false
1706 if(! function_exists('allowed_url')) {
1707 function allowed_url($url) {
1709 $h = parse_url($url);
1715 $str_allowed = get_config('system','allowed_sites');
1721 $host = strtolower($h['host']);
1723 // always allow our own site
1725 if($host == strtolower($_SERVER['SERVER_NAME']))
1728 $fnmatch = function_exists('fnmatch');
1729 $allowed = explode(',',$str_allowed);
1731 if(count($allowed)) {
1732 foreach($allowed as $a) {
1733 $pat = strtolower(trim($a));
1734 if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
1743 // check if email address is allowed to register here.
1744 // Compare against our list (wildcards allowed).
1745 // Returns false if not allowed, true if allowed or if
1746 // allowed list is not configured.
1748 if(! function_exists('allowed_email')) {
1749 function allowed_email($email) {
1752 $domain = strtolower(substr($email,strpos($email,'@') + 1));
1756 $str_allowed = get_config('system','allowed_email');
1762 $fnmatch = function_exists('fnmatch');
1763 $allowed = explode(',',$str_allowed);
1765 if(count($allowed)) {
1766 foreach($allowed as $a) {
1767 $pat = strtolower(trim($a));
1768 if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
1777 // Format the like/dislike text for a profile item
1778 // $cnt = number of people who like/dislike the item
1779 // $arr = array of pre-linked names of likers/dislikers
1780 // $type = one of 'like, 'dislike'
1782 // returns formatted text
1784 if(! function_exists('format_like')) {
1785 function format_like($cnt,$arr,$type,$id) {
1788 $o .= $arr[0] . (($type === 'like') ? t(' likes this.') : t(' doesn\'t like this.')) . EOL ;
1790 $o .= '<span class="fakelink" onclick="openClose(\'' . $type . 'list-' . $id . '\');" >'
1791 . $cnt . ' ' . t('people') . '</span> ' . (($type === 'like') ? t('like this.') : t('don\'t like this.')) . EOL ;
1792 $total = count($arr);
1793 if($total >= MAX_LIKERS)
1794 $arr = array_slice($arr, 0, MAX_LIKERS - 1);
1795 if($total < MAX_LIKERS)
1796 $arr[count($arr)-1] = t('and') . ' ' . $arr[count($arr)-1];
1797 $str = implode(', ', $arr);
1798 if($total >= MAX_LIKERS)
1799 $str .= t(', and ') . $total - MAX_LIKERS . t(' other people');
1800 $str .= (($type === 'like') ? t(' like this.') : t(' don\'t like this.'));
1801 $o .= "\t" . '<div id="' . $type . 'list-' . $id . '" style="display: none;" >' . $str . '</div>';
1807 // wrapper to load a view template, checking for alternate
1808 // languages before falling back to the default
1810 if(! function_exists('load_view_file')) {
1811 function load_view_file($s) {
1814 $lang = get_config('system','language');
1817 if(file_exists("$d/$lang/$b"))
1818 return file_get_contents("$d/$lang/$b");
1819 return file_get_contents($s);
1822 // for html,xml parsing - let's say you've got
1823 // an attribute foobar="class1 class2 class3"
1824 // and you want to find out if it contains 'class3'.
1825 // you can't use a normal sub string search because you
1826 // might match 'notclass3' and a regex to do the job is
1827 // possible but a bit complicated.
1828 // pass the attribute string as $attr and the attribute you
1829 // are looking for as $s - returns true if found, otherwise false
1831 if(! function_exists('attribute_contains')) {
1832 function attribute_contains($attr,$s) {
1833 $a = explode(' ', $attr);
1834 if(count($a) && in_array($s,$a))
1839 if(! function_exists('logger')) {
1840 function logger($msg,$level = 0) {
1841 $debugging = get_config('system','debugging');
1842 $loglevel = intval(get_config('system','loglevel'));
1843 $logfile = get_config('system','logfile');
1845 if((! $debugging) || (! $logfile) || ($level > $loglevel))
1848 @file_put_contents($logfile, datetime_convert() . ':' . session_id() . ' ' . $msg . "\n", FILE_APPEND);
1853 if(! function_exists('activity_match')) {
1854 function activity_match($haystack,$needle) {
1855 if(($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle,NAMESPACE_ACTIVITY_SCHEMA)))
1861 // Pull out all #hashtags and @person tags from $s;
1862 // We also get @person@domain.com - which would make
1863 // the regex quite complicated as tags can also
1864 // end a sentence. So we'll run through our results
1865 // and strip the period from any tags which end with one.
1866 // Returns array of tags found, or empty array.
1869 if(! function_exists('get_tags')) {
1870 function get_tags($s) {
1873 // ignore anything in a code block
1875 $s = preg_replace('/\[code\](.*?)\[\/code\]/sm','',$s);
1877 if(preg_match_all('/([@#][^ \x0D\x0A,:?]+)([ \x0D\x0A,:?]|$)/',$s,$match)) {
1878 foreach($match[1] as $match) {
1879 if(strstr($match,"]")) {
1880 // we might be inside a bbcode color tag - leave it alone
1883 if(substr($match,-1,1) === '.')
1884 $ret[] = substr($match,0,-1);
1894 // quick and dirty quoted_printable encoding
1896 if(! function_exists('qp')) {
1898 return str_replace ("%","=",rawurlencode($s));
1902 if(! function_exists('like_puller')) {
1903 function like_puller($a,$item,&$arr,$mode) {
1907 $verb = (($mode === 'like') ? ACTIVITY_LIKE : ACTIVITY_DISLIKE);
1909 if((activity_match($item['verb'],$verb)) && ($item['id'] != $item['parent'])) {
1910 $url = $item['author-link'];
1911 if((local_user()) && (local_user() == $item['uid']) && ($item['network'] === 'dfrn') && (! $item['self']) && (link_compare($item['author-link'],$item['url']))) {
1912 $url = $a->get_baseurl() . '/redir/' . $item['contact-id'];
1913 $sparkle = ' class="sparkle" ';
1915 if(! ((isset($arr[$item['parent'] . '-l'])) && (is_array($arr[$item['parent'] . '-l']))))
1916 $arr[$item['parent'] . '-l'] = array();
1917 if(! isset($arr[$item['parent']]))
1918 $arr[$item['parent']] = 1;
1920 $arr[$item['parent']] ++;
1921 $arr[$item['parent'] . '-l'][] = '<a href="'. $url . '"'. $sparkle .'>' . $item['author-name'] . '</a>';
1926 if(! function_exists('get_mentions')) {
1927 function get_mentions($item) {
1929 if(! strlen($item['tag']))
1932 $arr = explode(',',$item['tag']);
1933 foreach($arr as $x) {
1935 if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches))
1936 $o .= "\t\t" . '<link rel="mentioned" href="' . $matches[1] . '" />' . "\r\n";
1941 if(! function_exists('contact_block')) {
1942 function contact_block() {
1946 $shown = get_pconfig($a->profile['uid'],'system','display_friend_count');
1950 if((! is_array($a->profile)) || ($a->profile['hide-friends']))
1952 $r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0",
1953 intval($a->profile['uid'])
1956 $total = intval($r[0]['total']);
1959 $o .= '<h4 class="contact-h4">' . t('No contacts') . '</h4>';
1962 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0 ORDER BY RAND() LIMIT %d",
1963 intval($a->profile['uid']),
1967 $o .= '<h4 class="contact-h4">' . $total . ' ' . t('Contacts') . '</h4><div id="contact-block">';
1968 foreach($r as $rr) {
1969 $redirect_url = $a->get_baseurl() . '/redir/' . $rr['id'];
1970 if(local_user() && ($rr['uid'] == local_user())
1971 && ($rr['network'] === 'dfrn')) {
1972 $url = $redirect_url;
1973 $sparkle = ' sparkle';
1980 $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";
1982 $o .= '</div><div id="contact-block-end"></div>';
1983 $o .= '<div id="viewcontacts"><a id="viewcontacts-link" href="viewcontacts/' . $a->profile['nickname'] . '">' . t('View Contacts') . '</a></div>';
1987 $arr = array('contacts' => $r, 'output' => $o);
1989 call_hooks('contact_block_end', $arr);
1994 if(! function_exists('search')) {
1995 function search($s) {
1997 $o = '<div id="search-box">';
1998 $o .= '<form action="' . $a->get_baseurl() . '/search' . '" method="get" >';
1999 $o .= '<input type="text" name="search" id="search-text" value="' . $s .'" />';
2000 $o .= '<input type="submit" name="submit" id="search-submit" value="' . t('Search') . '" />';
2001 $o .= '</form></div>';
2005 if(! function_exists('valid_email')) {
2006 function valid_email($x){
2007 if(preg_match('/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/',$x))
2013 if(! function_exists('gravatar_img')) {
2014 function gravatar_img($email) {
2016 $opt = 'identicon'; // psuedo-random geometric pattern if not found
2018 $hash = md5(trim(strtolower($email)));
2020 $url = 'http://www.gravatar.com/avatar/' . $hash . '.jpg'
2021 . '?s=' . $size . '&d=' . $opt . '&r=' . $rating;
2023 logger('gravatar: ' . $email . ' ' . $url);
2027 if(! function_exists('aes_decrypt')) {
2028 function aes_decrypt($val,$ky)
2030 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2031 for($a=0;$a<strlen($ky);$a++)
2032 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2033 $mode = MCRYPT_MODE_ECB;
2034 $enc = MCRYPT_RIJNDAEL_128;
2035 $dec = @mcrypt_decrypt($enc, $key, $val, $mode, @mcrypt_create_iv( @mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM ) );
2036 return rtrim($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));
2040 if(! function_exists('aes_encrypt')) {
2041 function aes_encrypt($val,$ky)
2043 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2044 for($a=0;$a<strlen($ky);$a++)
2045 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2046 $mode=MCRYPT_MODE_ECB;
2047 $enc=MCRYPT_RIJNDAEL_128;
2048 $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
2049 return mcrypt_encrypt($enc, $key, $val, $mode, mcrypt_create_iv( mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM));
2057 * Replace naked text hyperlink with HTML formatted hyperlink
2061 if(! function_exists('linkify')) {
2062 function linkify($s) {
2063 $s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%\$\!\+]*)/", ' <a href="$1" target="external-link">$1</a>', $s);
2073 * Replaces text emoticons with graphical images
2075 * @Parameter: string $s
2080 if(! function_exists('smilies')) {
2081 function smilies($s) {
2085 array( '<3', '</3', '<\\3', ':-)', ';-)', ':-(', ':(', ':-P', ':-"', ':-x', ':-X', ':-D', '8-|', '8-O'),
2087 '<img src="' . $a->get_baseurl() . '/images/smiley-heart.gif" alt="<3" />',
2088 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="</3" />',
2089 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="<\\3" />',
2090 '<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":-)" />',
2091 '<img src="' . $a->get_baseurl() . '/images/smiley-wink.gif" alt=";-)" />',
2092 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":-(" />',
2093 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":(" />',
2094 '<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":-P" />',
2095 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-\"" />',
2096 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-x" />',
2097 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-X" />',
2098 '<img src="' . $a->get_baseurl() . '/images/smiley-laughing.gif" alt=":-D" />',
2099 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-|" />',
2100 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-O" />'
2107 * Function : profile_load
2109 * @parameter string $nickname
2110 * @parameter int $profile
2112 * Summary: Loads a profile into the page sidebar.
2113 * The function requires a writeable copy of the main App structure, and the nickname
2114 * of a registered local account.
2116 * If the viewer is an authenticated remote viewer, the profile displayed is the
2117 * one that has been configured for his/her viewing in the Contact manager.
2118 * Passing a non-zero profile ID can also allow a preview of a selected profile
2121 * Profile information is placed in the App structure for later retrieval.
2122 * Honours the owner's chosen theme for display.
2126 if(! function_exists('profile_load')) {
2127 function profile_load(&$a, $nickname, $profile = 0) {
2129 $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
2130 intval($_SESSION['visitor_id']));
2132 $profile = $r[0]['profile-id'];
2138 $profile_int = intval($profile);
2139 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2140 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2141 WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d LIMIT 1",
2143 intval($profile_int)
2147 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2148 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2149 WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 LIMIT 1",
2154 if(($r === false) || (! count($r))) {
2155 notice( t('No profile') . EOL );
2160 $a->profile = $r[0];
2163 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
2164 $_SESSION['theme'] = $a->profile['theme'];
2166 if(! (x($a->page,'aside')))
2167 $a->page['aside'] = '';
2169 $a->page['aside'] .= profile_sidebar($a->profile);
2170 $a->page['aside'] .= contact_block();
2178 * Function: profile_sidebar
2180 * Formats a profile for display in the sidebar.
2181 * It is very difficult to templatise the HTML completely
2182 * because of all the conditional logic.
2184 * @parameter: array $profile
2186 * Returns HTML string stuitable for sidebar inclusion
2187 * Exceptions: Returns empty string if passed $profile is wrong type or not populated
2192 if(! function_exists('profile_sidebar')) {
2193 function profile_sidebar($profile) {
2199 if((! is_array($profile)) && (! count($profile)))
2202 call_hooks('profile_sidebar_enter', $profile);
2204 $fullname = '<div class="fn">' . $profile['name'] . '</div>';
2206 $pdesc = '<div class="title">' . $profile['pdesc'] . '</div>';
2210 $photo = '<div id="profile-photo-wrapper"><img class="photo" src="' . $profile['photo'] . '" alt="' . $profile['name'] . '" /></div>';
2212 $connect = (($profile['uid'] != local_user()) ? '<li><a id="dfrn-request-link" href="dfrn_request/' . $profile['nickname'] . '">' . t('Connect') . '</a></li>' : '');
2214 if((x($profile,'address') == 1)
2215 || (x($profile,'locality') == 1)
2216 || (x($profile,'region') == 1)
2217 || (x($profile,'postal-code') == 1)
2218 || (x($profile,'country-name') == 1))
2222 $location .= '<div class="location"><span class="location-label">' . t('Location:') . '</span> <div class="adr">';
2223 $location .= ((x($profile,'address') == 1) ? '<div class="street-address">' . $profile['address'] . '</div>' : '');
2224 $location .= (((x($profile,'locality') == 1) || (x($profile,'region') == 1) || (x($profile,'postal-code') == 1))
2225 ? '<span class="city-state-zip"><span class="locality">' . $profile['locality'] . '</span>'
2226 . ((x($profile['locality']) == 1) ? t(', ') : '')
2227 . '<span class="region">' . $profile['region'] . '</span>'
2228 . ' <span class="postal-code">' . $profile['postal-code'] . '</span></span>' : '');
2229 $location .= ((x($profile,'country-name') == 1) ? ' <span class="country-name">' . $profile['country-name'] . '</span>' : '');
2230 $location .= '</div></div><div class="profile-clear"></div>';
2234 $gender = ((x($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>' : '');
2236 $pubkey = ((x($profile,'pubkey') == 1) ? '<div class="key" style="display:none;">' . $profile['pubkey'] . '</div>' : '');
2238 $marital = ((x($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>' : '');
2240 $homepage = ((x($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>' : '');
2242 $tpl = load_view_file('view/profile_vcard.tpl');
2244 $o .= replace_macros($tpl, array(
2245 '$fullname' => $fullname,
2249 '$connect' => $connect,
2250 '$location' => $location,
2251 '$gender' => $gender,
2252 '$pubkey' => $pubkey,
2253 '$marital' => $marital,
2254 '$homepage' => $homepage
2258 $arr = array('profile' => $profile, 'entry' => $o);
2260 call_hooks('profile_sidebar', $arr);
2266 if(! function_exists('register_hook')) {
2267 function register_hook($hook,$file,$function) {
2269 $r = q("SELECT * FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2277 $r = q("INSERT INTO `hook` (`hook`, `file`, `function`) VALUES ( '%s', '%s', '%s' ) ",
2285 if(! function_exists('unregister_hook')) {
2286 function unregister_hook($hook,$file,$function) {
2288 $r = q("DELETE FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2297 if(! function_exists('load_hooks')) {
2298 function load_hooks() {
2300 $a->hooks = array();
2301 $r = q("SELECT * FROM `hook` WHERE 1");
2303 foreach($r as $rr) {
2304 $a->hooks[] = array($rr['hook'], $rr['file'], $rr['function']);
2310 if(! function_exists('call_hooks')) {
2311 function call_hooks($name, &$data = null) {
2314 if(count($a->hooks)) {
2315 foreach($a->hooks as $hook) {
2316 if($hook[HOOK_HOOK] === $name) {
2317 @include_once($hook[HOOK_FILE]);
2318 if(function_exists($hook[HOOK_FUNCTION])) {
2319 $func = $hook[HOOK_FUNCTION];
2328 if(! function_exists('day_translate')) {
2329 function day_translate($s) {
2330 $ret = str_replace(array('Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'),
2331 array( t('Monday'), t('Tuesday'), t('Wednesday'), t('Thursday'), t('Friday'), t('Saturday'), t('Sunday')),
2334 $ret = str_replace(array('January','February','March','April','May','June','July','August','September','October','November','December'),
2335 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')),
2341 if(! function_exists('get_birthdays')) {
2342 function get_birthdays() {
2350 $bd_format = get_config('system','birthday_format');
2352 $bd_format = 'g A l F d' ; // 8 AM Friday January 18
2354 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
2355 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
2356 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
2357 ORDER BY `start` DESC ",
2358 intval(local_user()),
2359 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
2360 dbesc(datetime_convert('UTC','UTC','now'))
2363 if($r && count($r)) {
2364 $o .= '<div id="birthday-wrapper"><div id="birthday-title">' . t('Birthdays this week:') . '</div>';
2365 $o .= '<div id="birthday-adjust">' . t("\x28Adjusted for local time\x29") . '</div>';
2366 $o .= '<div id="birthday-title-end"></div>';
2368 foreach($r as $rr) {
2369 $now = strtotime('now');
2370 $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
2372 $o .= '<div class="birthday-list" id="birthday-' . $rr['eid'] . '"><a class="sparkle" href="'
2373 . $a->get_baseurl() . '/redir/' . $rr['cid'] . '">' . $rr['name'] . '</a> '
2374 . day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $bd_format)) . (($today) ? ' ' . t('[today]') : '')
2387 * Compare two URLs to see if they are the same, but ignore
2388 * slight but hopefully insignificant differences such as if one
2389 * is https and the other isn't, or if one is www.something and
2390 * the other isn't - and also ignore case differences.
2392 * Return true if the URLs match, otherwise false.
2396 if(! function_exists('link_compare')) {
2397 function link_compare($a,$b) {
2398 $a1 = str_replace(array('https:','//www.'), array('http:','//'), $a);
2399 $b1 = str_replace(array('https:','//www.'), array('http:','//'), $b);
2400 if(strcasecmp($a1,$b1) === 0)
2406 if(! function_exists('prepare_body')) {
2407 function prepare_body($item) {
2409 require_once('include/bbcode.php');
2411 $s = smilies(bbcode($item['body']));
2418 * Wrap calls to proc_close(proc_open()) and call hook
2419 * so plugins can take part in process :)
2422 * $cmd program to run
2423 * next args are passed as $cmd command line
2425 * e.g.: proc_run("ls","-la","/tmp");
2427 * $cmd and string args are surrounded with ""
2430 if(! function_exists('run_proc')) {
2431 function proc_run($cmd){
2432 $args = func_get_args();
2433 call_hooks("proc_run", $args);
2435 foreach ($args as &$arg){
2436 if(is_string($arg)) $arg='"'.$arg.'"';
2438 $cmdline = implode($args," ");
2439 proc_close(proc_open($cmdline." &",array(),$foo));
2443 * Return full URL to theme which is currently in effect.
2444 * Provide a sane default if nothing is chosen or the specified theme does not exist.
2447 if(! function_exists('current_theme_url')) {
2448 function current_theme_url() {
2450 $app_base_themes = array('duepuntozero', 'loozah');
2454 $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
2455 $theme_name = ((x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
2457 if($theme_name && file_exists('view/theme/' . $theme_name . '/style.css'))
2458 return($a->get_baseurl() . '/view/theme/' . $theme_name . '/style.css');
2460 foreach($app_base_themes as $t) {
2461 if(file_exists('view/theme/' . $t . '/style.css'))
2462 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
2465 $fallback = glob('view/theme/*/style.css');
2466 if(count($fallback))
2467 return($a->get_baseurl() . $fallback[0]);
2472 if(! function_exists('feed_birthday')) {
2473 function feed_birthday($uid,$tz) {
2477 * Determine the next birthday, but only if the birthday is published
2478 * in the default profile. We _could_ also look for a private profile that the
2479 * recipient can see, but somebody could get mad at us if they start getting
2480 * public birthday greetings when they haven't made this info public.
2482 * Assuming we are able to publish this info, we are then going to convert
2483 * the start time from the owner's timezone to UTC.
2485 * This will potentially solve the problem found with some social networks
2486 * where birthdays are converted to the viewer's timezone and salutations from
2487 * elsewhere in the world show up on the wrong day. We will convert it to the
2488 * viewer's timezone also, but first we are going to convert it from the birthday
2489 * person's timezone to GMT - so the viewer may find the birthday starting at
2490 * 6:00PM the day before, but that will correspond to midnight to the birthday person.
2496 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
2500 if($p && count($p)) {
2501 $tmp_dob = substr($p[0]['dob'],5);
2502 if(intval($tmp_dob)) {
2503 $y = datetime_convert($tz,$tz,'now','Y');
2504 $bd = $y . '-' . $tmp_dob . ' 00:00';
2505 $t_dob = strtotime($bd);
2506 $now = strtotime(datetime_convert($tz,$tz,'now'));
2508 $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
2509 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
2517 * return atom link elements for all of our hubs
2520 if(! function_exists('feed_hublinks')) {
2521 function feed_hublinks() {
2523 $hub = get_config('system','huburl');
2527 $hubs = explode(',', $hub);
2529 foreach($hubs as $h) {
2533 $hubxml .= '<link rel="hub" href="' . xmlify($h) . '" />' . "\n" ;
2540 /* return atom link elements for salmon endpoints */
2542 if(! function_exists('feed_salmonlinks')) {
2543 function feed_salmonlinks($nick) {
2547 $salmon = '<link rel="salmon" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2549 // old style links that status.net still needed as of 12/2010
2551 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-replies" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2552 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-mention" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2556 if(! function_exists('get_plink')) {
2557 function get_plink($item) {
2559 $plink = (((x($item,'plink')) && (! $item['private'])) ? '<div class="wall-item-links-wrapper"><a href="'
2560 . $item['plink'] . '" title="' . t('link to source') . '" target="external-link" ><img src="' . $a->get_baseurl() . '/images/remote-link.gif" alt="' . t('link to source') . '" /></a></div>' : '');
2564 if(! function_exists('unamp')) {
2565 function unamp($s) {
2566 return str_replace('&', '&', $s);