3 define ( 'FRIENDIKA_VERSION', '2.2.1047' );
4 define ( 'DFRN_PROTOCOL_VERSION', '2.21' );
5 define ( 'DB_UPDATE_VERSION', 1076 );
7 define ( 'EOL', "<br />\r\n" );
8 define ( 'ATOM_TIME', 'Y-m-d\TH:i:s\Z' );
9 define ( 'DOWN_ARROW', '⇩' );
13 * Image storage quality. Lower numbers save space at cost of image detail.
14 * For ease of upgrade, please do not change here. Change jpeg quality with
15 * set_config('system','jpeg_quality',n) in .htconfig.php
16 * where n is netween 1 and 100, and with very poor results below about 50
20 define ( 'JPEG_QUALITY', 100 );
23 * SSL redirection policies
26 define ( 'SSL_POLICY_NONE', 0 );
27 define ( 'SSL_POLICY_FULL', 1 );
28 define ( 'SSL_POLICY_SELFSIGN', 2 );
35 define ( 'LOGGER_NORMAL', 0 );
36 define ( 'LOGGER_TRACE', 1 );
37 define ( 'LOGGER_DEBUG', 2 );
38 define ( 'LOGGER_DATA', 3 );
39 define ( 'LOGGER_ALL', 4 );
42 * registration policies
45 define ( 'REGISTER_CLOSED', 0 );
46 define ( 'REGISTER_APPROVE', 1 );
47 define ( 'REGISTER_OPEN', 2 );
51 * When used in contact records, this indicates that 'uid' has
52 * this relationship with contact['name']
55 define ( 'REL_VIP', 1); // other person is 'following' us
56 define ( 'REL_FAN', 2); // we are 'following' other person
57 define ( 'REL_BUD', 3); // mutual relationship
63 define ( 'HOOK_HOOK', 0);
64 define ( 'HOOK_FILE', 1);
65 define ( 'HOOK_FUNCTION', 2);
71 * PAGE_NORMAL is a typical personal profile account
72 * PAGE_SOAPBOX automatically approves all friend requests as REL_FAN, (readonly)
73 * PAGE_COMMUNITY automatically approves all friend requests as REL_FAN, but with
74 * write access to wall and comments (no email and not included in page owner's ACL lists)
75 * PAGE_FREELOVE automatically approves all friend requests as full friends (REL_BUD).
79 define ( 'PAGE_NORMAL', 0 );
80 define ( 'PAGE_SOAPBOX', 1 );
81 define ( 'PAGE_COMMUNITY', 2 );
82 define ( 'PAGE_FREELOVE', 3 );
85 * Network and protocol family types
88 define ( 'NETWORK_ZOT', 'zot!'); // Zot!
89 define ( 'NETWORK_DFRN', 'dfrn'); // Friendika, Mistpark, other DFRN implementations
90 define ( 'NETWORK_OSTATUS', 'stat'); // status.net, identi.ca, GNU-social, other OStatus implementations
91 define ( 'NETWORK_FEED', 'feed'); // RSS/Atom feeds with no known "post/notify" protocol
92 define ( 'NETWORK_DIASPORA', 'dspr'); // Diaspora
93 define ( 'NETWORK_MAIL', 'mail'); // IMAP/POP
94 define ( 'NETWORK_FACEBOOK', 'face'); // Facebook API
98 * Maximum number of "people who like (or don't like) this" that we will list by name
101 define ( 'MAX_LIKERS', 75);
104 * Communication timeout
107 define ( 'ZCURL_TIMEOUT' , (-1));
111 * email notification options
114 define ( 'NOTIFY_INTRO', 0x0001 );
115 define ( 'NOTIFY_CONFIRM', 0x0002 );
116 define ( 'NOTIFY_WALL', 0x0004 );
117 define ( 'NOTIFY_COMMENT', 0x0008 );
118 define ( 'NOTIFY_MAIL', 0x0010 );
121 * various namespaces we may need to parse
124 define ( 'NAMESPACE_ZOT', 'http://purl.org/macgirvin/zot' );
125 define ( 'NAMESPACE_DFRN' , 'http://purl.org/macgirvin/dfrn/1.0' );
126 define ( 'NAMESPACE_THREAD' , 'http://purl.org/syndication/thread/1.0' );
127 define ( 'NAMESPACE_TOMB' , 'http://purl.org/atompub/tombstones/1.0' );
128 define ( 'NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/' );
129 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
130 define ( 'NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia' );
131 define ( 'NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env' );
132 define ( 'NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe' );
133 define ( 'NAMESPACE_GEORSS', 'http://www.georss.org/georss' );
134 define ( 'NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0' );
135 define ( 'NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from' );
136 define ( 'NAMESPACE_OSTATUS', 'http://ostatus.org/schema/1.0' );
137 define ( 'NAMESPACE_STATUSNET', 'http://status.net/schema/api/1/' );
138 define ( 'NAMESPACE_ATOM1', 'http://www.w3.org/2005/Atom' );
140 * activity stream defines
143 define ( 'ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like' );
144 define ( 'ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike' );
145 define ( 'ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart' );
147 define ( 'ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
148 define ( 'ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
149 define ( 'ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
150 define ( 'ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post' );
151 define ( 'ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update' );
152 define ( 'ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
154 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
155 define ( 'ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note' );
156 define ( 'ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person' );
157 define ( 'ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
158 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
159 define ( 'ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
160 define ( 'ACTIVITY_OBJ_EVENT', NAMESPACE_ACTIVITY_SCHEMA . 'event' );
163 * item weight for query ordering
166 define ( 'GRAVITY_PARENT', 0);
167 define ( 'GRAVITY_LIKE', 3);
168 define ( 'GRAVITY_COMMENT', 6);
172 * Reverse the effect of magic_quotes_gpc if it is enabled.
173 * Please disable magic_quotes_gpc so we don't have to do this.
174 * See http://php.net/manual/en/security.magicquotes.disabling.php
179 error_reporting(E_ERROR | E_WARNING | E_PARSE);
181 ini_set('pcre.backtrack_limit', 250000);
184 if (get_magic_quotes_gpc()) {
185 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
186 while (list($key, $val) = each($process)) {
187 foreach ($val as $k => $v) {
188 unset($process[$key][$k]);
190 $process[$key][stripslashes($k)] = $v;
191 $process[] = &$process[$key][stripslashes($k)];
193 $process[$key][stripslashes($k)] = stripslashes($v);
205 require_once("include/pgettext.php");
212 * Our main application structure for the life of this page
213 * Primarily deals with the URL that got us here
214 * and tries to make some sense of it, and
215 * stores our page contents and config storage
216 * and anything else that might need to be passed around
217 * before we spit the page out.
221 if(! class_exists('App')) {
224 public $module_loaded = false;
225 public $query_string;
233 public $page_contact;
236 public $error = false;
246 public $interactive = true;
257 private $curl_headers;
259 function __construct() {
261 $this->config = array();
262 $this->page = array();
263 $this->pager= array();
265 $this->query_string = '';
269 $this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'])) ? 'https' : 'http' );
271 if(x($_SERVER,'SERVER_NAME')) {
272 $this->hostname = $_SERVER['SERVER_NAME'];
275 * Figure out if we are running at the top of a domain
276 * or in a sub-directory and adjust accordingly
279 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
280 if(isset($path) && strlen($path) && ($path != $this->path))
284 set_include_path("include/$this->hostname" . PATH_SEPARATOR . 'include' . PATH_SEPARATOR . '.' );
286 if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=")
287 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
289 $this->cmd = trim($_GET['q'],'/\\');
295 * Break the URL path into C style argc/argv style arguments for our
296 * modules. Given "http://example.com/module/arg1/arg2", $this->argc
297 * will be 3 (integer) and $this->argv will contain:
303 * There will always be one argument. If provided a naked domain
304 * URL, $this->argv[0] is set to "home".
308 $this->argv = explode('/',$this->cmd);
309 $this->argc = count($this->argv);
310 if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
311 $this->module = str_replace(".", "_", $this->argv[0]);
315 $this->argv = array('home');
316 $this->module = 'home';
320 * Special handling for the webfinger/lrdd host XRD file
321 * Just spit out the contents and exit.
324 if($this->cmd === '.well-known/host-meta') {
325 require_once('include/hostxrd.php');
326 hostxrd($this->get_baseurl());
331 * See if there is any page number information, and initialise
335 $this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1);
336 $this->pager['itemspage'] = 50;
337 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
338 $this->pager['total'] = 0;
341 function get_baseurl($ssl = false) {
343 $scheme = $this->scheme;
345 if(x($this->config,'ssl_policy')) {
346 if(($ssl) || ($this->config['ssl_policy'] == SSL_POLICY_FULL))
348 if(($this->config['ssl_policy'] == SSL_POLICY_SELFSIGN) && (local_user() || x($_POST,'auth-params')))
352 $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
353 return $this->baseurl;
356 function set_baseurl($url) {
357 $parsed = @parse_url($url);
359 $this->baseurl = $url;
362 $this->scheme = $parsed['scheme'];
364 $this->hostname = $parsed['host'];
365 if(x($parsed,'port'))
366 $this->hostname .= ':' . $parsed['port'];
367 if(x($parsed,'path'))
368 $this->path = trim($parsed['path'],'\\/');
373 function get_hostname() {
374 return $this->hostname;
377 function set_hostname($h) {
378 $this->hostname = $h;
381 function set_path($p) {
382 $this->path = trim(trim($p),'/');
385 function get_path() {
389 function set_pager_total($n) {
390 $this->pager['total'] = intval($n);
393 function set_pager_itemspage($n) {
394 $this->pager['itemspage'] = intval($n);
395 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
399 function init_pagehead() {
400 $this->page['title'] = $this->config['sitename'];
401 $tpl = file_get_contents('view/head.tpl');
402 $this->page['htmlhead'] = replace_macros($tpl,array(
403 '$baseurl' => $this->get_baseurl(),
404 '$generator' => 'Friendika' . ' ' . FRIENDIKA_VERSION,
405 '$delitem' => t('Delete this item?'),
406 '$comment' => t('Comment')
410 function set_curl_code($code) {
411 $this->curl_code = $code;
414 function get_curl_code() {
415 return $this->curl_code;
418 function set_curl_headers($headers) {
419 $this->curl_headers = $headers;
422 function get_curl_headers() {
423 return $this->curl_headers;
429 // retrieve the App structure
430 // useful in functions which require it but don't get it passed to them
432 if(! function_exists('get_app')) {
439 // Multi-purpose function to check variable state.
440 // Usage: x($var) or $x($array,'key')
441 // returns false if variable/key is not set
442 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
443 // e.g. x('') or x(0) returns 0;
445 if(! function_exists('x')) {
446 function x($s,$k = NULL) {
448 if((is_array($s)) && (array_key_exists($k,$s))) {
466 // called from db initialisation if db is dead.
468 if(! function_exists('system_unavailable')) {
469 function system_unavailable() {
470 include('system_unavailable.php');
476 // install and uninstall plugin
477 if (! function_exists('uninstall_plugin')){
478 function uninstall_plugin($plugin){
479 logger("Addons: uninstalling " . $plugin);
480 q("DELETE FROM `addon` WHERE `name` = '%s' LIMIT 1",
484 @include_once('addon/' . $plugin . '/' . $plugin . '.php');
485 if(function_exists($plugin . '_uninstall')) {
486 $func = $plugin . '_uninstall';
491 if (! function_exists('install_plugin')){
492 function install_plugin($plugin){
493 logger("Addons: installing " . $plugin);
494 $t = filemtime('addon/' . $plugin . '/' . $plugin . '.php');
495 @include_once('addon/' . $plugin . '/' . $plugin . '.php');
496 if(function_exists($plugin . '_install')) {
497 $func = $plugin . '_install';
500 $plugin_admin = (function_exists($plugin."_plugin_admin")?1:0);
502 $r = q("INSERT INTO `addon` (`name`, `installed`, `timestamp`, `plugin_admin`) VALUES ( '%s', 1, %d , %d ) ",
510 // Primarily involved with database upgrade, but also sets the
511 // base url for use in cmdline programs which don't have
512 // $_SERVER variables, and synchronising the state of installed plugins.
515 if(! function_exists('check_config')) {
516 function check_config(&$a) {
518 $build = get_config('system','build');
520 $build = set_config('system','build',DB_UPDATE_VERSION);
522 $url = get_config('system','url');
524 // if the url isn't set or the stored url is radically different
525 // than the currently visited url, store the current value accordingly.
526 // "Radically different" ignores common variations such as http vs https
527 // and www.example.com vs example.com.
529 if((! x($url)) || (! link_compare($url,$a->get_baseurl())))
530 $url = set_config('system','url',$a->get_baseurl());
532 if($build != DB_UPDATE_VERSION) {
533 $stored = intval($build);
534 $current = intval(DB_UPDATE_VERSION);
535 if(($stored < $current) && file_exists('update.php')) {
537 // We're reporting a different version than what is currently installed.
538 // Run any existing update scripts to bring the database up to current.
540 require_once('update.php');
542 // make sure that boot.php and update.php are the same release, we might be
543 // updating right this very second and the correct version of the update.php
544 // file may not be here yet. This can happen on a very busy site.
546 if(DB_UPDATE_VERSION == UPDATE_VERSION) {
548 for($x = $stored; $x < $current; $x ++) {
549 if(function_exists('update_' . $x)) {
550 $func = 'update_' . $x;
554 set_config('system','build', DB_UPDATE_VERSION);
561 * Synchronise plugins:
563 * $a->config['system']['addon'] contains a comma-separated list of names
564 * of plugins/addons which are used on this system.
565 * Go through the database list of already installed addons, and if we have
566 * an entry, but it isn't in the config list, call the uninstall procedure
567 * and mark it uninstalled in the database (for now we'll remove it).
568 * Then go through the config list and if we have a plugin that isn't installed,
569 * call the install procedure and add it to the database.
573 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
577 $installed = array();
579 $plugins = get_config('system','addon');
580 $plugins_arr = array();
583 $plugins_arr = explode(',',str_replace(' ', '',$plugins));
585 $a->plugins = $plugins_arr;
587 $installed_arr = array();
589 if(count($installed)) {
590 foreach($installed as $i) {
591 if(! in_array($i['name'],$plugins_arr)) {
592 uninstall_plugin($i['name']);
595 $installed_arr[] = $i['name'];
599 if(count($plugins_arr)) {
600 foreach($plugins_arr as $p) {
601 if(! in_array($p,$installed_arr)) {
613 // reload all updated plugins
615 if(! function_exists('reload_plugins')) {
616 function reload_plugins() {
617 $plugins = get_config('system','addon');
618 if(strlen($plugins)) {
620 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
624 $installed = array();
626 $parr = explode(',',$plugins);
628 foreach($parr as $pl) {
631 $t = filemtime('addon/' . $pl . '/' . $pl . '.php');
632 foreach($installed as $i) {
633 if(($i['name'] == $pl) && ($i['timestamp'] != $t)) {
634 logger('Reloading plugin: ' . $i['name']);
635 @include_once('addon/' . $pl . '/' . $pl . '.php');
637 if(function_exists($pl . '_uninstall')) {
638 $func = $pl . '_uninstall';
641 if(function_exists($pl . '_install')) {
642 $func = $pl . '_install';
645 q("UPDATE `addon` SET `timestamp` = %d WHERE `id` = %d LIMIT 1",
658 // This is our template processor.
659 // $s is the string requiring macro substitution.
660 // $r is an array of key value pairs (search => replace)
661 // returns substituted string.
662 // WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other.
663 // For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing,
664 // depending on the order in which they were declared in the array.
666 require_once("include/template_processor.php");
668 if(! function_exists('replace_macros')) {
669 function replace_macros($s,$r) {
672 return $t->replace($s,$r);
677 // curl wrapper. If binary flag is true, return binary
680 if(! function_exists('fetch_url')) {
681 function fetch_url($url,$binary = false, &$redirects = 0) {
685 $ch = curl_init($url);
686 if(($redirects > 8) || (! $ch))
689 curl_setopt($ch, CURLOPT_HEADER, true);
690 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
691 curl_setopt($ch, CURLOPT_USERAGENT, "Friendika");
693 $curl_time = intval(get_config('system','curl_timeout'));
694 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
696 // by default we will allow self-signed certs
697 // but you can override this
699 $check_cert = get_config('system','verifyssl');
700 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
702 $prx = get_config('system','proxy');
704 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
705 curl_setopt($ch, CURLOPT_PROXY, $prx);
706 $prxusr = get_config('system','proxyuser');
708 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
711 curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
713 $a->set_curl_code(0);
715 // don't let curl abort the entire application
716 // if it throws any errors.
718 $s = @curl_exec($ch);
721 $curl_info = curl_getinfo($ch);
722 $http_code = $curl_info['http_code'];
726 // Pull out multiple headers, e.g. proxy and continuation headers
727 // allow for HTTP/2.x without fixing code
729 while(preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/',$base)) {
730 $chunk = substr($base,0,strpos($base,"\r\n\r\n")+4);
732 $base = substr($base,strlen($chunk));
735 if($http_code == 301 || $http_code == 302 || $http_code == 303 || $http_code == 307) {
737 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
738 $url = trim(array_pop($matches));
739 $url_parsed = @parse_url($url);
740 if (isset($url_parsed)) {
742 return fetch_url($url,$binary,$redirects);
746 $a->set_curl_code($http_code);
748 $body = substr($s,strlen($header));
750 $a->set_curl_headers($header);
756 // post request to $url. $params is an array of post variables.
758 if(! function_exists('post_url')) {
759 function post_url($url,$params, $headers = null, &$redirects = 0) {
761 $ch = curl_init($url);
762 if(($redirects > 8) || (! $ch))
765 curl_setopt($ch, CURLOPT_HEADER, true);
766 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
767 curl_setopt($ch, CURLOPT_POST,1);
768 curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
769 curl_setopt($ch, CURLOPT_USERAGENT, "Friendika");
771 $curl_time = intval(get_config('system','curl_timeout'));
772 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
774 if(defined('LIGHTTPD')) {
775 if(!is_array($headers)) {
776 $headers = array('Expect:');
778 if(!in_array('Expect:', $headers)) {
779 array_push($headers, 'Expect:');
784 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
786 $check_cert = get_config('system','verifyssl');
787 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
788 $prx = get_config('system','proxy');
790 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
791 curl_setopt($ch, CURLOPT_PROXY, $prx);
792 $prxusr = get_config('system','proxyuser');
794 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
797 $a->set_curl_code(0);
799 // don't let curl abort the entire application
800 // if it throws any errors.
802 $s = @curl_exec($ch);
805 $curl_info = curl_getinfo($ch);
806 $http_code = $curl_info['http_code'];
810 // Pull out multiple headers, e.g. proxy and continuation headers
811 // allow for HTTP/2.x without fixing code
813 while(preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/',$base)) {
814 $chunk = substr($base,0,strpos($base,"\r\n\r\n")+4);
816 $base = substr($base,strlen($chunk));
819 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
821 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
822 $url = trim(array_pop($matches));
823 $url_parsed = @parse_url($url);
824 if (isset($url_parsed)) {
826 return post_url($url,$binary,$headers,$redirects);
829 $a->set_curl_code($http_code);
830 $body = substr($s,strlen($header));
832 $a->set_curl_headers($header);
838 // random hash, 64 chars
840 if(! function_exists('random_string')) {
841 function random_string() {
842 return(hash('sha256',uniqid(rand(),true)));
846 * This is our primary input filter.
848 * The high bit hack only involved some old IE browser, forget which (IE5/Mac?)
849 * that had an XSS attack vector due to stripping the high-bit on an 8-bit character
850 * after cleansing, and angle chars with the high bit set could get through as markup.
852 * This is now disabled because it was interfering with some legitimate unicode sequences
853 * and hopefully there aren't a lot of those browsers left.
855 * Use this on any text input where angle chars are not valid or permitted
856 * They will be replaced with safer brackets. This may be filtered further
857 * if these are not allowed either.
861 if(! function_exists('notags')) {
862 function notags($string) {
864 return(str_replace(array("<",">"), array('[',']'), $string));
866 // High-bit filter no longer used
867 // return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string));
870 // use this on "body" or "content" input where angle chars shouldn't be removed,
871 // and allow them to be safely displayed.
873 if(! function_exists('escape_tags')) {
874 function escape_tags($string) {
876 return(htmlspecialchars($string));
879 // wrapper for adding a login box. If $register == true provide a registration
880 // link. This will most always depend on the value of $a->config['register_policy'].
881 // returns the complete html for inserting into the page
883 if(! function_exists('login')) {
884 function login($register = false) {
886 $register_tpl = (($register) ? get_markup_template("register-link.tpl") : "");
888 $register_html = replace_macros($register_tpl,array(
889 '$title' => t('Create a New Account'),
890 '$desc' => t('Register')
893 $noid = get_config('system','no_openid');
895 $classname = 'no-openid';
896 $namelabel = t('Nickname or Email address: ');
897 $passlabel = t('Password: ');
901 $classname = 'openid';
902 $namelabel = t('Nickname/Email/OpenID: ');
903 $passlabel = t("Password \x28if not OpenID\x29: ");
906 $lostpass = t('Forgot your password?');
907 $lostlink = t('Password Reset');
910 $tpl = get_markup_template("logout.tpl");
913 $tpl = get_markup_template("login.tpl");
917 $o = '<script type="text/javascript"> $(document).ready(function() { $("#login-name").focus();} );</script>';
919 $o .= replace_macros($tpl,array(
920 '$logout' => t('Logout'),
921 '$register_html' => $register_html,
922 '$classname' => $classname,
923 '$namelabel' => $namelabel,
924 '$passlabel' => $passlabel,
926 '$lostpass' => $lostpass,
927 '$lostlink' => $lostlink
933 // generate a string that's random, but usually pronounceable.
934 // used to generate initial passwords
936 if(! function_exists('autoname')) {
937 function autoname($len) {
939 $vowels = array('a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u');
940 if(mt_rand(0,5) == 4)
958 's','sc','sh','sm','sp','st',
966 $midcons = array('ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
967 'nd','ng','nk','nt','rn','rp','rt');
969 $noend = array('bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
970 'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh');
972 $start = mt_rand(0,2);
980 for ($x = 0; $x < $len; $x ++) {
981 $r = mt_rand(0,count($table) - 1);
984 if($table == $vowels)
985 $table = array_merge($cons,$midcons);
991 $word = substr($word,0,$len);
993 foreach($noend as $noe) {
994 if((strlen($word) > 2) && (substr($word,-2) == $noe)) {
995 $word = substr($word,0,-1);
999 if(substr($word,-1) == 'q')
1000 $word = substr($word,0,-1);
1004 // Used to end the current process, after saving session state.
1006 if(! function_exists('killme')) {
1008 session_write_close();
1012 // redirect to another URL and terminate this process.
1014 if(! function_exists('goaway')) {
1015 function goaway($s) {
1016 header("Location: $s");
1020 // Generic XML return
1021 // Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
1022 // of $st and an optional text <message> of $message and terminates the current process.
1024 if(! function_exists('xml_status')) {
1025 function xml_status($st, $message = '') {
1027 $xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
1030 logger('xml_status returning non_zero: ' . $st . " message=" . $message);
1032 header( "Content-type: text/xml" );
1033 echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
1034 echo "<result>\r\n\t<status>$st</status>\r\n$xml_message</result>\r\n";
1038 // Returns the uid of locally logged in user or false.
1040 if(! function_exists('local_user')) {
1041 function local_user() {
1042 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
1043 return intval($_SESSION['uid']);
1047 // Returns contact id of authenticated site visitor or false
1049 if(! function_exists('remote_user')) {
1050 function remote_user() {
1051 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
1052 return intval($_SESSION['visitor_id']);
1056 // contents of $s are displayed prominently on the page the next time
1057 // a page is loaded. Usually used for errors or alerts.
1059 if(! function_exists('notice')) {
1060 function notice($s) {
1063 $_SESSION['sysmsg'] .= $s;
1065 if(! function_exists('info')) {
1069 $_SESSION['sysmsg_info'] .= $s;
1073 // wrapper around config to limit the text length of an incoming message
1075 if(! function_exists('get_max_import_size')) {
1076 function get_max_import_size() {
1078 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
1082 // escape text ($str) for XML transport
1083 // returns escaped text.
1085 if(! function_exists('xmlify')) {
1086 function xmlify($str) {
1089 for($x = 0; $x < strlen($str); $x ++) {
1100 $buffer .= ''';
1103 $buffer .= '"';
1119 $buffer = trim($buffer);
1124 // pass xml escaped text ($s), returns unescaped text
1126 if(! function_exists('unxmlify')) {
1127 function unxmlify($s) {
1128 $ret = str_replace('&','&', $s);
1129 $ret = str_replace(array('<','>','"','''),array('<','>','"',"'"),$ret);
1133 // convenience wrapper, reverse the operation "bin2hex"
1135 if(! function_exists('hex2bin')) {
1136 function hex2bin($s) {
1137 if(! ctype_xdigit($s)) {
1138 logger('hex2bin: illegal input: ' . print_r(debug_backtrace(), true));
1142 return(pack("H*",$s));
1145 // Automatic pagination.
1146 // To use, get the count of total items.
1147 // Then call $a->set_pager_total($number_items);
1148 // Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page
1149 // Then call paginate($a) after the end of the display loop to insert the pager block on the page
1150 // (assuming there are enough items to paginate).
1151 // When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage']
1152 // will limit the results to the correct items for the current page.
1153 // The actual page handling is then accomplished at the application layer.
1155 if(! function_exists('paginate')) {
1156 function paginate(&$a) {
1158 $stripped = preg_replace('/(&page=[0-9]*)/','',$a->query_string);
1159 $stripped = str_replace('q=','',$stripped);
1160 $stripped = trim($stripped,'/');
1161 $pagenum = $a->pager['page'];
1162 $url = $a->get_baseurl() . '/' . $stripped;
1165 if($a->pager['total'] > $a->pager['itemspage']) {
1166 $o .= '<div class="pager">';
1167 if($a->pager['page'] != 1)
1168 $o .= '<span class="pager_prev">'."<a href=\"$url".'&page='.($a->pager['page'] - 1).'">' . t('prev') . '</a></span> ';
1170 $o .= "<span class=\"pager_first\"><a href=\"$url"."&page=1\">" . t('first') . "</a></span> ";
1172 $numpages = $a->pager['total'] / $a->pager['itemspage'];
1175 $numstop = $numpages;
1177 if($numpages > 14) {
1178 $numstart = (($pagenum > 7) ? ($pagenum - 7) : 1);
1179 $numstop = (($pagenum > ($numpages - 7)) ? $numpages : ($numstart + 14));
1182 for($i = $numstart; $i <= $numstop; $i++){
1183 if($i == $a->pager['page'])
1184 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1186 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1190 if(($a->pager['total'] % $a->pager['itemspage']) != 0) {
1191 if($i == $a->pager['page'])
1192 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1194 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1198 $lastpage = (($numpages > intval($numpages)) ? intval($numpages)+1 : $numpages);
1199 $o .= "<span class=\"pager_last\"><a href=\"$url"."&page=$lastpage\">" . t('last') . "</a></span> ";
1201 if(($a->pager['total'] - ($a->pager['itemspage'] * $a->pager['page'])) > 0)
1202 $o .= '<span class="pager_next">'."<a href=\"$url"."&page=".($a->pager['page'] + 1).'">' . t('next') . '</a></span>';
1203 $o .= '</div>'."\r\n";
1208 // Turn user/group ACLs stored as angle bracketed text into arrays
1210 if(! function_exists('expand_acl')) {
1211 function expand_acl($s) {
1212 // turn string array of angle-bracketed elements into numeric array
1213 // e.g. "<1><2><3>" => array(1,2,3);
1217 $t = str_replace('<','',$s);
1218 $a = explode('>',$t);
1219 foreach($a as $aa) {
1221 $ret[] = intval($aa);
1227 // Used to wrap ACL elements in angle brackets for storage
1229 if(! function_exists('sanitise_acl')) {
1230 function sanitise_acl(&$item) {
1232 $item = '<' . intval(notags(trim($item))) . '>';
1237 // retrieve a "family" of config variables from database to cached storage
1239 if(! function_exists('load_config')) {
1240 function load_config($family) {
1242 $r = q("SELECT * FROM `config` WHERE `cat` = '%s'",
1246 foreach($r as $rr) {
1248 if ($rr['cat'] === 'config') {
1249 $a->config[$k] = $rr['v'];
1251 $a->config[$family][$k] = $rr['v'];
1257 // get a particular config variable given the family name
1258 // and key. Returns false if not set.
1259 // $instore is only used by the set_config function
1260 // to determine if the key already exists in the DB
1261 // If a key is found in the DB but doesn't exist in
1262 // local config cache, pull it into the cache so we don't have
1263 // to hit the DB again for this item.
1265 if(! function_exists('get_config')) {
1266 function get_config($family, $key, $instore = false) {
1271 if(isset($a->config[$family][$key])) {
1272 if($a->config[$family][$key] === '!<unset>!') {
1275 return $a->config[$family][$key];
1278 $ret = q("SELECT `v` FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1283 // manage array value
1284 $val = (preg_match("|^a:[0-9]+:{.*}$|", $ret[0]['v'])?unserialize( $ret[0]['v']):$ret[0]['v']);
1285 $a->config[$family][$key] = $val;
1289 $a->config[$family][$key] = '!<unset>!';
1294 // Store a config value ($value) in the category ($family)
1295 // under the key ($key)
1296 // Return the value, or false if the database update failed
1298 if(! function_exists('set_config')) {
1299 function set_config($family,$key,$value) {
1302 // manage array value
1303 $dbvalue = (is_array($value)?serialize($value):$value);
1305 if(get_config($family,$key,true) === false) {
1306 $a->config[$family][$key] = $value;
1307 $ret = q("INSERT INTO `config` ( `cat`, `k`, `v` ) VALUES ( '%s', '%s', '%s' ) ",
1317 $ret = q("UPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1323 $a->config[$family][$key] = $value;
1331 if(! function_exists('load_pconfig')) {
1332 function load_pconfig($uid,$family) {
1334 $r = q("SELECT * FROM `pconfig` WHERE `cat` = '%s' AND `uid` = %d",
1339 foreach($r as $rr) {
1341 $a->config[$uid][$family][$k] = $rr['v'];
1348 if(! function_exists('get_pconfig')) {
1349 function get_pconfig($uid,$family, $key, $instore = false) {
1354 if(isset($a->config[$uid][$family][$key])) {
1355 if($a->config[$uid][$family][$key] === '!<unset>!') {
1358 return $a->config[$uid][$family][$key];
1362 $ret = q("SELECT `v` FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1369 $a->config[$uid][$family][$key] = $ret[0]['v'];
1370 return $ret[0]['v'];
1373 $a->config[$uid][$family][$key] = '!<unset>!';
1378 if(! function_exists('del_config')) {
1379 function del_config($family,$key) {
1382 if(x($a->config[$family],$key))
1383 unset($a->config[$family][$key]);
1384 $ret = q("DELETE FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1393 // Same as above functions except these are for personal config storage and take an
1394 // additional $uid argument.
1396 if(! function_exists('set_pconfig')) {
1397 function set_pconfig($uid,$family,$key,$value) {
1401 if(get_pconfig($uid,$family,$key,true) === false) {
1402 $a->config[$uid][$family][$key] = $value;
1403 $ret = q("INSERT INTO `pconfig` ( `uid`, `cat`, `k`, `v` ) VALUES ( %d, '%s', '%s', '%s' ) ",
1413 $ret = q("UPDATE `pconfig` SET `v` = '%s' WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1420 $a->config[$uid][$family][$key] = $value;
1427 if(! function_exists('del_pconfig')) {
1428 function del_pconfig($uid,$family,$key) {
1431 if(x($a->config[$uid][$family],$key))
1432 unset($a->config[$uid][$family][$key]);
1433 $ret = q("DELETE FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1442 // convert an XML document to a normalised, case-corrected array
1443 // used by webfinger
1445 if(! function_exists('convert_xml_element_to_array')) {
1446 function convert_xml_element_to_array($xml_element, &$recursion_depth=0) {
1448 // If we're getting too deep, bail out
1449 if ($recursion_depth > 512) {
1453 if (!is_string($xml_element) &&
1454 !is_array($xml_element) &&
1455 (get_class($xml_element) == 'SimpleXMLElement')) {
1456 $xml_element_copy = $xml_element;
1457 $xml_element = get_object_vars($xml_element);
1460 if (is_array($xml_element)) {
1461 $result_array = array();
1462 if (count($xml_element) <= 0) {
1463 return (trim(strval($xml_element_copy)));
1466 foreach($xml_element as $key=>$value) {
1469 $result_array[strtolower($key)] =
1470 convert_xml_element_to_array($value, $recursion_depth);
1473 if ($recursion_depth == 0) {
1474 $temp_array = $result_array;
1475 $result_array = array(
1476 strtolower($xml_element_copy->getName()) => $temp_array,
1480 return ($result_array);
1483 return (trim(strval($xml_element)));
1487 // Given an email style address, perform webfinger lookup and
1488 // return the resulting DFRN profile URL, or if no DFRN profile URL
1489 // is located, returns an OStatus subscription template (prefixed
1490 // with the string 'stat:' to identify it as on OStatus template).
1491 // If this isn't an email style address just return $s.
1492 // Return an empty string if email-style addresses but webfinger fails,
1493 // or if the resultant personal XRD doesn't contain a supported
1494 // subscription/friend-request attribute.
1496 if(! function_exists('webfinger_dfrn')) {
1497 function webfinger_dfrn($s) {
1498 if(! strstr($s,'@')) {
1501 $links = webfinger($s);
1502 logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA);
1504 foreach($links as $link)
1505 if($link['@attributes']['rel'] === NAMESPACE_DFRN)
1506 return $link['@attributes']['href'];
1507 foreach($links as $link)
1508 if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB)
1509 return 'stat:' . $link['@attributes']['template'];
1514 // Given an email style address, perform webfinger lookup and
1515 // return the array of link attributes from the personal XRD file.
1516 // On error/failure return an empty array.
1519 if(! function_exists('webfinger')) {
1520 function webfinger($s) {
1522 if(strstr($s,'@')) {
1523 $host = substr($s,strpos($s,'@') + 1);
1526 $tpl = fetch_lrdd_template($host);
1527 logger('webfinger: lrdd template: ' . $tpl);
1529 $pxrd = str_replace('{uri}', urlencode('acct:' . $s), $tpl);
1530 logger('webfinger: pxrd: ' . $pxrd);
1531 $links = fetch_xrd_links($pxrd);
1532 if(! count($links)) {
1533 // try with double slashes
1534 $pxrd = str_replace('{uri}', urlencode('acct://' . $s), $tpl);
1535 logger('webfinger: pxrd: ' . $pxrd);
1536 $links = fetch_xrd_links($pxrd);
1544 if(! function_exists('lrdd')) {
1545 function lrdd($uri) {
1549 // default priority is host priority, host-meta first
1553 // All we have is an email address. Resource-priority is irrelevant
1554 // because our URI isn't directly resolvable.
1556 if(strstr($uri,'@')) {
1557 return(webfinger($uri));
1560 // get the host meta file
1562 $host = @parse_url($uri);
1565 $url = ((x($host,'scheme')) ? $host['scheme'] : 'http') . '://';
1566 $url .= $host['host'] . '/.well-known/host-meta' ;
1571 logger('lrdd: constructed url: ' . $url);
1573 $xml = fetch_url($url);
1574 $headers = $a->get_curl_headers();
1579 logger('lrdd: host_meta: ' . $xml, LOGGER_DATA);
1581 $h = parse_xml_string($xml);
1585 $arr = convert_xml_element_to_array($h);
1587 if(isset($arr['xrd']['property'])) {
1588 $property = $arr['crd']['property'];
1589 if(! isset($property[0]))
1590 $properties = array($property);
1592 $properties = $property;
1593 foreach($properties as $prop)
1594 if((string) $prop['@attributes'] === 'http://lrdd.net/priority/resource')
1595 $priority = 'resource';
1598 // save the links in case we need them
1602 if(isset($arr['xrd']['link'])) {
1603 $link = $arr['xrd']['link'];
1604 if(! isset($link[0]))
1605 $links = array($link);
1610 // do we have a template or href?
1613 foreach($links as $link) {
1614 if($link['@attributes']['rel'] && attribute_contains($link['@attributes']['rel'],'lrdd')) {
1615 if(x($link['@attributes'],'template'))
1616 $tpl = $link['@attributes']['template'];
1617 elseif(x($link['@attributes'],'href'))
1618 $href = $link['@attributes']['href'];
1623 if((! isset($tpl)) || (! strpos($tpl,'{uri}')))
1626 if($priority === 'host') {
1628 $pxrd = str_replace('{uri}', urlencode($uri), $tpl);
1629 elseif(isset($href))
1632 logger('lrdd: (host priority) pxrd: ' . $pxrd);
1633 $links = fetch_xrd_links($pxrd);
1637 $lines = explode("\n",$headers);
1639 foreach($lines as $line) {
1640 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1641 return(fetch_xrd_links($matches[1]));
1649 // priority 'resource'
1652 $html = fetch_url($uri);
1653 $headers = $a->get_curl_headers();
1654 logger('lrdd: headers=' . $headers, LOGGER_DEBUG);
1656 // don't try and parse raw xml as html
1657 if(! strstr($html,'<?xml')) {
1658 require_once('library/HTML5/Parser.php');
1659 $dom = @HTML5_Parser::parse($html);
1662 $items = $dom->getElementsByTagName('link');
1663 foreach($items as $item) {
1664 $x = $item->getAttribute('rel');
1666 $pagelink = $item->getAttribute('href');
1673 if(isset($pagelink))
1674 return(fetch_xrd_links($pagelink));
1676 // next look in HTTP headers
1678 $lines = explode("\n",$headers);
1680 foreach($lines as $line) {
1681 // TODO alter the following regex to support multiple relations (space separated)
1682 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1683 $pagelink = $matches[1];
1686 // don't try and run feeds through the html5 parser
1687 if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml'))))
1689 if(stristr($html,'<rss') || stristr($html,'<feed'))
1694 if(isset($pagelink))
1695 return(fetch_xrd_links($pagelink));
1697 // If we haven't found any links, return the host xrd links (which we have already fetched)
1708 // Given a host name, locate the LRDD template from that
1709 // host. Returns the LRDD template or an empty string on
1712 if(! function_exists('fetch_lrdd_template')) {
1713 function fetch_lrdd_template($host) {
1716 $url1 = 'https://' . $host . '/.well-known/host-meta' ;
1717 $url2 = 'http://' . $host . '/.well-known/host-meta' ;
1718 $links = fetch_xrd_links($url1);
1719 logger('fetch_lrdd_template from: ' . $url1);
1720 logger('template (https): ' . print_r($links,true));
1721 if(! count($links)) {
1722 logger('fetch_lrdd_template from: ' . $url2);
1723 $links = fetch_xrd_links($url2);
1724 logger('template (http): ' . print_r($links,true));
1727 foreach($links as $link)
1728 if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd')
1729 $tpl = $link['@attributes']['template'];
1731 if(! strpos($tpl,'{uri}'))
1736 // Given a URL, retrieve the page as an XRD document.
1737 // Return an array of links.
1738 // on error/failure return empty array.
1740 if(! function_exists('fetch_xrd_links')) {
1741 function fetch_xrd_links($url) {
1744 $xml = fetch_url($url);
1748 logger('fetch_xrd_links: ' . $xml, LOGGER_DATA);
1749 $h = parse_xml_string($xml);
1753 $arr = convert_xml_element_to_array($h);
1757 if(isset($arr['xrd']['link'])) {
1758 $link = $arr['xrd']['link'];
1759 if(! isset($link[0]))
1760 $links = array($link);
1764 if(isset($arr['xrd']['alias'])) {
1765 $alias = $arr['xrd']['alias'];
1766 if(! isset($alias[0]))
1767 $aliases = array($alias);
1770 foreach($aliases as $alias) {
1771 $links[]['@attributes'] = array('rel' => 'alias' , 'href' => $alias);
1775 logger('fetch_xrd_links: ' . print_r($links,true), LOGGER_DATA);
1781 // Convert an ACL array to a storable string
1783 if(! function_exists('perms2str')) {
1784 function perms2str($p) {
1787 if(is_array($tmp)) {
1788 array_walk($tmp,'sanitise_acl');
1789 $ret = implode('',$tmp);
1794 // generate a guaranteed unique (for this domain) item ID for ATOM
1795 // safe from birthday paradox
1797 if(! function_exists('item_new_uri')) {
1798 function item_new_uri($hostname,$uid) {
1802 $hash = random_string();
1804 $uri = "urn:X-dfrn:" . $hostname . ':' . $uid . ':' . $hash;
1806 $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
1810 } while($dups == true);
1814 // Generate a guaranteed unique photo ID.
1815 // safe from birthday paradox
1817 if(! function_exists('photo_new_resource')) {
1818 function photo_new_resource() {
1822 $resource = hash('md5',uniqid(mt_rand(),true));
1823 $r = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1",
1828 } while($found == true);
1833 // Take a URL from the wild, prepend http:// if necessary
1834 // and check DNS to see if it's real
1835 // return true if it's OK, false if something is wrong with it
1837 if(! function_exists('validate_url')) {
1838 function validate_url(&$url) {
1839 if(substr($url,0,4) != 'http')
1840 $url = 'http://' . $url;
1841 $h = @parse_url($url);
1843 if(($h) && (dns_get_record($h['host'], DNS_A + DNS_CNAME + DNS_PTR))) {
1849 // checks that email is an actual resolvable internet address
1851 if(! function_exists('validate_email')) {
1852 function validate_email($addr) {
1854 if(! strpos($addr,'@'))
1856 $h = substr($addr,strpos($addr,'@') + 1);
1858 if(($h) && (dns_get_record($h, DNS_A + DNS_CNAME + DNS_PTR + DNS_MX))) {
1864 // Check $url against our list of allowed sites,
1865 // wildcards allowed. If allowed_sites is unset return true;
1866 // If url is allowed, return true.
1867 // otherwise, return false
1869 if(! function_exists('allowed_url')) {
1870 function allowed_url($url) {
1872 $h = @parse_url($url);
1878 $str_allowed = get_config('system','allowed_sites');
1884 $host = strtolower($h['host']);
1886 // always allow our own site
1888 if($host == strtolower($_SERVER['SERVER_NAME']))
1891 $fnmatch = function_exists('fnmatch');
1892 $allowed = explode(',',$str_allowed);
1894 if(count($allowed)) {
1895 foreach($allowed as $a) {
1896 $pat = strtolower(trim($a));
1897 if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
1906 // check if email address is allowed to register here.
1907 // Compare against our list (wildcards allowed).
1908 // Returns false if not allowed, true if allowed or if
1909 // allowed list is not configured.
1911 if(! function_exists('allowed_email')) {
1912 function allowed_email($email) {
1915 $domain = strtolower(substr($email,strpos($email,'@') + 1));
1919 $str_allowed = get_config('system','allowed_email');
1925 $fnmatch = function_exists('fnmatch');
1926 $allowed = explode(',',$str_allowed);
1928 if(count($allowed)) {
1929 foreach($allowed as $a) {
1930 $pat = strtolower(trim($a));
1931 if(($fnmatch && fnmatch($pat,$domain)) || ($pat == $domain)) {
1942 // wrapper to load a view template, checking for alternate
1943 // languages before falling back to the default
1945 // obsolete, deprecated.
1947 if(! function_exists('load_view_file')) {
1948 function load_view_file($s) {
1954 if(file_exists("$d/$lang/$b"))
1955 return file_get_contents("$d/$lang/$b");
1957 $theme = current_theme();
1959 if(file_exists("$d/theme/$theme/$b"))
1960 return file_get_contents("$d/theme/$theme/$b");
1962 return file_get_contents($s);
1965 if(! function_exists('get_intltext_template')) {
1966 function get_intltext_template($s) {
1972 if(file_exists("view/$lang/$s"))
1973 return file_get_contents("view/$lang/$s");
1974 elseif(file_exists("view/en/$s"))
1975 return file_get_contents("view/en/$s");
1977 return file_get_contents("view/$s");
1980 if(! function_exists('get_markup_template')) {
1981 function get_markup_template($s) {
1983 $theme = current_theme();
1985 if(file_exists("view/theme/$theme/$s"))
1986 return file_get_contents("view/theme/$theme/$s");
1988 return file_get_contents("view/$s");
1996 // for html,xml parsing - let's say you've got
1997 // an attribute foobar="class1 class2 class3"
1998 // and you want to find out if it contains 'class3'.
1999 // you can't use a normal sub string search because you
2000 // might match 'notclass3' and a regex to do the job is
2001 // possible but a bit complicated.
2002 // pass the attribute string as $attr and the attribute you
2003 // are looking for as $s - returns true if found, otherwise false
2005 if(! function_exists('attribute_contains')) {
2006 function attribute_contains($attr,$s) {
2007 $a = explode(' ', $attr);
2008 if(count($a) && in_array($s,$a))
2013 if(! function_exists('logger')) {
2014 function logger($msg,$level = 0) {
2015 $debugging = get_config('system','debugging');
2016 $loglevel = intval(get_config('system','loglevel'));
2017 $logfile = get_config('system','logfile');
2019 if((! $debugging) || (! $logfile) || ($level > $loglevel))
2022 @file_put_contents($logfile, datetime_convert() . ':' . session_id() . ' ' . $msg . "\n", FILE_APPEND);
2027 if(! function_exists('activity_match')) {
2028 function activity_match($haystack,$needle) {
2029 if(($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle,NAMESPACE_ACTIVITY_SCHEMA)))
2035 // Pull out all #hashtags and @person tags from $s;
2036 // We also get @person@domain.com - which would make
2037 // the regex quite complicated as tags can also
2038 // end a sentence. So we'll run through our results
2039 // and strip the period from any tags which end with one.
2040 // Returns array of tags found, or empty array.
2043 if(! function_exists('get_tags')) {
2044 function get_tags($s) {
2047 // ignore anything in a code block
2049 $s = preg_replace('/\[code\](.*?)\[\/code\]/sm','',$s);
2051 // Match full names against @tags including the space between first and last
2052 // We will look these up afterward to see if they are full names or not recognisable.
2054 if(preg_match_all('/(@[^ \x0D\x0A,:?]+ [^ \x0D\x0A,:?]+)([ \x0D\x0A,:?]|$)/',$s,$match)) {
2055 foreach($match[1] as $mtch) {
2056 if(strstr($mtch,"]")) {
2057 // we might be inside a bbcode color tag - leave it alone
2060 if(substr($mtch,-1,1) === '.')
2061 $ret[] = substr($mtch,0,-1);
2067 // Otherwise pull out single word tags. These can be @nickname, @first_last
2070 if(preg_match_all('/([@#][^ \x0D\x0A,:?]+)([ \x0D\x0A,:?]|$)/',$s,$match)) {
2071 foreach($match[1] as $mtch) {
2072 if(strstr($mtch,"]")) {
2073 // we might be inside a bbcode color tag - leave it alone
2076 // ignore strictly numeric tags like #1
2077 if((strpos($mtch,'#') === 0) && ctype_digit(substr($mtch,1)))
2079 if(substr($mtch,-1,1) === '.')
2080 $ret[] = substr($mtch,0,-1);
2089 // quick and dirty quoted_printable encoding
2091 if(! function_exists('qp')) {
2093 return str_replace ("%","=",rawurlencode($s));
2098 if(! function_exists('get_mentions')) {
2099 function get_mentions($item) {
2101 if(! strlen($item['tag']))
2104 $arr = explode(',',$item['tag']);
2105 foreach($arr as $x) {
2107 if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
2108 $o .= "\t\t" . '<link rel="mentioned" href="' . $matches[1] . '" />' . "\r\n";
2109 $o .= "\t\t" . '<link rel="ostatus:attention" href="' . $matches[1] . '" />' . "\r\n";
2115 if(! function_exists('contact_block')) {
2116 function contact_block() {
2120 $shown = get_pconfig($a->profile['uid'],'system','display_friend_count');
2124 if((! is_array($a->profile)) || ($a->profile['hide-friends']))
2126 $r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0",
2127 intval($a->profile['uid'])
2130 $total = intval($r[0]['total']);
2133 $o .= '<h4 class="contact-h4">' . t('No contacts') . '</h4>';
2136 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0 ORDER BY RAND() LIMIT %d",
2137 intval($a->profile['uid']),
2141 $o .= '<h4 class="contact-h4">' . sprintf( tt('%d Contact','%d Contacts', $total),$total) . '</h4><div id="contact-block">';
2142 foreach($r as $rr) {
2143 $o .= micropro($rr,true,'mpfriend');
2145 $o .= '</div><div id="contact-block-end"></div>';
2146 $o .= '<div id="viewcontacts"><a id="viewcontacts-link" href="viewcontacts/' . $a->profile['nickname'] . '">' . t('View Contacts') . '</a></div>';
2150 $arr = array('contacts' => $r, 'output' => $o);
2152 call_hooks('contact_block_end', $arr);
2157 if(! function_exists('micropro')) {
2158 function micropro($contact, $redirect = false, $class = '', $textmode = false) {
2161 $class = ' ' . $class;
2163 $url = $contact['url'];
2168 $redirect_url = $a->get_baseurl() . '/redir/' . $contact['id'];
2169 if(local_user() && ($contact['uid'] == local_user()) && ($contact['network'] === 'dfrn')) {
2170 $url = $redirect_url;
2171 $sparkle = ' sparkle';
2174 $click = ((x($contact,'click')) ? ' onclick="' . $contact['click'] . '" ' : '');
2178 return '<div class="contact-block-textdiv' . $class . '"><a class="contact-block-link' . $class . $sparkle
2179 . (($click) ? ' fakelink' : '') . '" '
2180 . (($url) ? ' href="' . $url . '"' : '') . $click
2181 . '" title="' . $contact['name'] . ' [' . $contact['url'] . ']" alt="' . $contact['name']
2182 . '" >'. $contact['name'] . '</a></div>' . "\r\n";
2185 return '<div class="contact-block-div' . $class . '"><a class="contact-block-link' . $class . $sparkle
2186 . (($click) ? ' fakelink' : '') . '" '
2187 . (($url) ? ' href="' . $url . '"' : '') . $click . ' ><img class="contact-block-img' . $class . $sparkle . '" src="'
2188 . $contact['micro'] . '" title="' . $contact['name'] . ' [' . $contact['url'] . ']" alt="' . $contact['name']
2189 . '" /></a></div>' . "\r\n";
2195 if(! function_exists('search')) {
2196 function search($s,$id='search-box',$url='/search') {
2198 $o = '<div id="' . $id . '">';
2199 $o .= '<form action="' . $a->get_baseurl() . $url . '" method="get" >';
2200 $o .= '<input type="text" name="search" id="search-text" value="' . $s .'" />';
2201 $o .= '<input type="submit" name="submit" id="search-submit" value="' . t('Search') . '" />';
2202 $o .= '</form></div>';
2206 if(! function_exists('valid_email')) {
2207 function valid_email($x){
2208 if(preg_match('/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/',$x))
2214 if(! function_exists('gravatar_img')) {
2215 function gravatar_img($email) {
2217 $opt = 'identicon'; // psuedo-random geometric pattern if not found
2219 $hash = md5(trim(strtolower($email)));
2221 $url = 'http://www.gravatar.com/avatar/' . $hash . '.jpg'
2222 . '?s=' . $size . '&d=' . $opt . '&r=' . $rating;
2224 logger('gravatar: ' . $email . ' ' . $url);
2228 if(! function_exists('aes_decrypt')) {
2229 function aes_decrypt($val,$ky)
2231 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2232 for($a=0;$a<strlen($ky);$a++)
2233 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2234 $mode = MCRYPT_MODE_ECB;
2235 $enc = MCRYPT_RIJNDAEL_128;
2236 $dec = @mcrypt_decrypt($enc, $key, $val, $mode, @mcrypt_create_iv( @mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM ) );
2237 return rtrim($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));
2241 if(! function_exists('aes_encrypt')) {
2242 function aes_encrypt($val,$ky)
2244 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2245 for($a=0;$a<strlen($ky);$a++)
2246 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2247 $mode=MCRYPT_MODE_ECB;
2248 $enc=MCRYPT_RIJNDAEL_128;
2249 $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
2250 return mcrypt_encrypt($enc, $key, $val, $mode, mcrypt_create_iv( mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM));
2258 * Replace naked text hyperlink with HTML formatted hyperlink
2262 if(! function_exists('linkify')) {
2263 function linkify($s) {
2264 $s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%\$\!\+]*)/", ' <a href="$1" target="external-link">$1</a>', $s);
2274 * Replaces text emoticons with graphical images
2276 * @Parameter: string $s
2281 if(! function_exists('smilies')) {
2282 function smilies($s) {
2286 array( '<3', '</3', '<\\3', ':-)', ':)', ';-)', ':-(', ':(', ':-P', ':P', ':-"', ':-x', ':-X', ':-D', '8-|', '8-O'),
2288 '<img src="' . $a->get_baseurl() . '/images/smiley-heart.gif" alt="<3" />',
2289 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="</3" />',
2290 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="<\\3" />',
2291 '<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":-)" />',
2292 '<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":)" />',
2293 '<img src="' . $a->get_baseurl() . '/images/smiley-wink.gif" alt=";-)" />',
2294 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":-(" />',
2295 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":(" />',
2296 '<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":-P" />',
2297 '<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":P" />',
2298 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-\"" />',
2299 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-x" />',
2300 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-X" />',
2301 '<img src="' . $a->get_baseurl() . '/images/smiley-laughing.gif" alt=":-D" />',
2302 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-|" />',
2303 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-O" />'
2310 * Function : profile_load
2312 * @parameter string $nickname
2313 * @parameter int $profile
2315 * Summary: Loads a profile into the page sidebar.
2316 * The function requires a writeable copy of the main App structure, and the nickname
2317 * of a registered local account.
2319 * If the viewer is an authenticated remote viewer, the profile displayed is the
2320 * one that has been configured for his/her viewing in the Contact manager.
2321 * Passing a non-zero profile ID can also allow a preview of a selected profile
2324 * Profile information is placed in the App structure for later retrieval.
2325 * Honours the owner's chosen theme for display.
2329 if(! function_exists('profile_load')) {
2330 function profile_load(&$a, $nickname, $profile = 0) {
2332 $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
2333 intval($_SESSION['visitor_id']));
2335 $profile = $r[0]['profile-id'];
2341 $profile_int = intval($profile);
2342 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2343 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2344 WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d LIMIT 1",
2346 intval($profile_int)
2350 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2351 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2352 WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 LIMIT 1",
2357 if(($r === false) || (! count($r))) {
2358 notice( t('No profile') . EOL );
2363 $a->profile = $r[0];
2366 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
2367 $_SESSION['theme'] = $a->profile['theme'];
2369 if(! (x($a->page,'aside')))
2370 $a->page['aside'] = '';
2372 $a->page['aside'] .= profile_sidebar($a->profile);
2373 $a->page['aside'] .= contact_block();
2381 * Function: profile_sidebar
2383 * Formats a profile for display in the sidebar.
2384 * It is very difficult to templatise the HTML completely
2385 * because of all the conditional logic.
2387 * @parameter: array $profile
2389 * Returns HTML string stuitable for sidebar inclusion
2390 * Exceptions: Returns empty string if passed $profile is wrong type or not populated
2395 if(! function_exists('profile_sidebar')) {
2396 function profile_sidebar($profile) {
2402 if((! is_array($profile)) && (! count($profile)))
2405 call_hooks('profile_sidebar_enter', $profile);
2407 $fullname = '<div class="fn">' . $profile['name'] . '</div>';
2409 $pdesc = '<div class="title">' . $profile['pdesc'] . '</div>';
2413 $photo = '<div id="profile-photo-wrapper"><img class="photo" src="' . $profile['photo'] . '" alt="' . $profile['name'] . '" /></div>';
2415 // don't show connect link to yourself
2417 $connect = (($profile['uid'] != local_user()) ? '<li><a id="dfrn-request-link" href="dfrn_request/' . $profile['nickname'] . '">' . t('Connect') . '</a></li>' : '');
2419 // don't show connect link to authenticated visitors either
2421 if((remote_user()) && ($_SESSION['visitor_visiting'] == $profile['uid']))
2424 if((x($profile,'address') == 1)
2425 || (x($profile,'locality') == 1)
2426 || (x($profile,'region') == 1)
2427 || (x($profile,'postal-code') == 1)
2428 || (x($profile,'country-name') == 1))
2432 $location .= '<div class="location"><span class="location-label">' . t('Location:') . '</span> <div class="adr">';
2433 $location .= ((x($profile,'address') == 1) ? '<div class="street-address">' . $profile['address'] . '</div>' : '');
2434 $location .= (((x($profile,'locality') == 1) || (x($profile,'region') == 1) || (x($profile,'postal-code') == 1))
2435 ? '<span class="city-state-zip"><span class="locality">' . $profile['locality'] . '</span>'
2436 . ((x($profile['locality']) == 1) ? t(', ') : '')
2437 . '<span class="region">' . $profile['region'] . '</span>'
2438 . ' <span class="postal-code">' . $profile['postal-code'] . '</span></span>' : '');
2439 $location .= ((x($profile,'country-name') == 1) ? ' <span class="country-name">' . $profile['country-name'] . '</span>' : '');
2440 $location .= '</div></div><div class="profile-clear"></div>';
2444 $gender = ((x($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>' : '');
2446 $pubkey = ((x($profile,'pubkey') == 1) ? '<div class="key" style="display:none;">' . $profile['pubkey'] . '</div>' : '');
2448 $marital = ((x($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 class="profile-clear"></div>' : '');
2450 $homepage = ((x($profile,'homepage') == 1) ? '<div class="homepage"><span class="homepage-label">' . t('Homepage:') . ' </span><span class="homepage-url">' . linkify($profile['homepage']) . '</span></div><div class="profile-clear"></div>' : '');
2452 if($profile['hidewall'] && (! local_user()) && (! remote_user())) {
2453 $location = $gender = $marital = $homepage = '';
2456 $tpl = get_markup_template('profile_vcard.tpl');
2458 $o .= replace_macros($tpl, array(
2459 '$fullname' => $fullname,
2463 '$connect' => $connect,
2464 '$location' => $location,
2465 '$gender' => $gender,
2466 '$pubkey' => $pubkey,
2467 '$marital' => $marital,
2468 '$homepage' => $homepage
2472 $arr = array('profile' => &$profile, 'entry' => &$o);
2474 call_hooks('profile_sidebar', $arr);
2480 if(! function_exists('register_hook')) {
2481 function register_hook($hook,$file,$function) {
2483 $r = q("SELECT * FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2491 $r = q("INSERT INTO `hook` (`hook`, `file`, `function`) VALUES ( '%s', '%s', '%s' ) ",
2499 if(! function_exists('unregister_hook')) {
2500 function unregister_hook($hook,$file,$function) {
2502 $r = q("DELETE FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2511 if(! function_exists('load_hooks')) {
2512 function load_hooks() {
2514 $a->hooks = array();
2515 $r = q("SELECT * FROM `hook` WHERE 1");
2517 foreach($r as $rr) {
2518 $a->hooks[] = array($rr['hook'], $rr['file'], $rr['function']);
2524 if(! function_exists('call_hooks')) {
2525 function call_hooks($name, &$data = null) {
2528 if(count($a->hooks)) {
2529 foreach($a->hooks as $hook) {
2530 if($hook[HOOK_HOOK] === $name) {
2531 @include_once($hook[HOOK_FILE]);
2532 if(function_exists($hook[HOOK_FUNCTION])) {
2533 $func = $hook[HOOK_FUNCTION];
2542 if(! function_exists('day_translate')) {
2543 function day_translate($s) {
2544 $ret = str_replace(array('Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'),
2545 array( t('Monday'), t('Tuesday'), t('Wednesday'), t('Thursday'), t('Friday'), t('Saturday'), t('Sunday')),
2548 $ret = str_replace(array('January','February','March','April','May','June','July','August','September','October','November','December'),
2549 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')),
2555 if(! function_exists('get_birthdays')) {
2556 function get_birthdays() {
2564 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
2566 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
2567 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
2568 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
2569 ORDER BY `start` DESC ",
2570 intval(local_user()),
2571 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
2572 dbesc(datetime_convert('UTC','UTC','now'))
2575 if($r && count($r)) {
2578 if(strlen($rr['name']))
2582 $o .= '<div id="birthday-notice" class="birthday-notice fakelink" onclick=openClose(\'birthday-wrapper\'); >' . t('Birthday Reminders') . ' ' . '(' . $total . ')' . '</div>';
2583 $o .= '<div id="birthday-wrapper" style="display: none;" ><div id="birthday-title">' . t('Birthdays this week:') . '</div>';
2584 $o .= '<div id="birthday-adjust">' . t("\x28Adjusted for local time\x29") . '</div>';
2585 $o .= '<div id="birthday-title-end"></div>';
2587 foreach($r as $rr) {
2588 if(! strlen($rr['name']))
2590 $now = strtotime('now');
2591 $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
2593 $o .= '<div class="birthday-list" id="birthday-' . $rr['eid'] . '"><a class="sparkle" href="'
2594 . $a->get_baseurl() . '/redir/' . $rr['cid'] . '">' . $rr['name'] . '</a> '
2595 . day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $bd_format)) . (($today) ? ' ' . t('[today]') : '')
2598 $o .= '</div></div>';
2605 if(! function_exists('normalise_link')) {
2606 function normalise_link($url) {
2607 $ret = str_replace(array('https:','//www.'), array('http:','//'), $url);
2608 return(rtrim($ret,'/'));
2613 * Compare two URLs to see if they are the same, but ignore
2614 * slight but hopefully insignificant differences such as if one
2615 * is https and the other isn't, or if one is www.something and
2616 * the other isn't - and also ignore case differences.
2618 * Return true if the URLs match, otherwise false.
2622 if(! function_exists('link_compare')) {
2623 function link_compare($a,$b) {
2624 if(strcasecmp(normalise_link($a),normalise_link($b)) === 0)
2630 if(! function_exists('prepare_body')) {
2631 function prepare_body($item,$attach = false) {
2633 $s = prepare_text($item['body']);
2637 $arr = explode(',',$item['attach']);
2639 $s .= '<div class="body-attach">';
2640 foreach($arr as $r) {
2643 $cnt = preg_match('|\[attach\]href=\"(.*?)\" size=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
2645 $icontype = strtolower(substr($matches[3],0,strpos($matches[3],'/')));
2651 $icon = '<div class="attachtype type-' . $icontype . '"></div>';
2654 $icon = '<div class="attachtype type-unkn"></div>';
2657 $title = ((strlen(trim($matches[4]))) ? escape_tags(trim($matches[4])) : escape_tags($matches[1]));
2658 $title .= ' ' . $matches[2] . ' ' . t('bytes');
2660 $s .= '<a href="' . strip_tags($matches[1]) . '" title="' . $title . '" class="attachlink" target="external-link" >' . $icon . '</a>';
2663 $s .= '<div class="clear"></div></div>';
2668 if(! function_exists('prepare_text')) {
2669 function prepare_text($text) {
2671 require_once('include/bbcode.php');
2673 $s = smilies(bbcode($text));
2680 * Wrap calls to proc_close(proc_open()) and call hook
2681 * so plugins can take part in process :)
2684 * $cmd program to run
2685 * next args are passed as $cmd command line
2687 * e.g.: proc_run("ls","-la","/tmp");
2689 * $cmd and string args are surrounded with ""
2692 if(! function_exists('proc_run')) {
2693 function proc_run($cmd){
2697 $args = func_get_args();
2698 call_hooks("proc_run", $args);
2700 if(count($args) && $args[0] === 'php')
2701 $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
2703 foreach ($args as $arg){
2704 $arg = escapeshellarg($arg);
2706 $cmdline = implode($args," ");
2707 proc_close(proc_open($cmdline." &",array(),$foo));
2710 if(! function_exists('current_theme')) {
2711 function current_theme(){
2712 $app_base_themes = array('duepuntozero', 'loozah');
2716 $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
2717 $theme_name = ((is_array($_SESSION) && x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
2719 if($theme_name && file_exists('view/theme/' . $theme_name . '/style.css'))
2720 return($theme_name);
2722 foreach($app_base_themes as $t) {
2723 if(file_exists('view/theme/' . $t . '/style.css'))
2727 $fallback = glob('view/theme/*/style.css');
2728 if(count($fallback))
2729 return (str_replace('view/theme/','', str_replace("/style.css","",$fallback[0])));
2734 * Return full URL to theme which is currently in effect.
2735 * Provide a sane default if nothing is chosen or the specified theme does not exist.
2737 if(! function_exists('current_theme_url')) {
2738 function current_theme_url() {
2740 $t = current_theme();
2741 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
2744 if(! function_exists('feed_birthday')) {
2745 function feed_birthday($uid,$tz) {
2749 * Determine the next birthday, but only if the birthday is published
2750 * in the default profile. We _could_ also look for a private profile that the
2751 * recipient can see, but somebody could get mad at us if they start getting
2752 * public birthday greetings when they haven't made this info public.
2754 * Assuming we are able to publish this info, we are then going to convert
2755 * the start time from the owner's timezone to UTC.
2757 * This will potentially solve the problem found with some social networks
2758 * where birthdays are converted to the viewer's timezone and salutations from
2759 * elsewhere in the world show up on the wrong day. We will convert it to the
2760 * viewer's timezone also, but first we are going to convert it from the birthday
2761 * person's timezone to GMT - so the viewer may find the birthday starting at
2762 * 6:00PM the day before, but that will correspond to midnight to the birthday person.
2768 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
2772 if($p && count($p)) {
2773 $tmp_dob = substr($p[0]['dob'],5);
2774 if(intval($tmp_dob)) {
2775 $y = datetime_convert($tz,$tz,'now','Y');
2776 $bd = $y . '-' . $tmp_dob . ' 00:00';
2777 $t_dob = strtotime($bd);
2778 $now = strtotime(datetime_convert($tz,$tz,'now'));
2780 $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
2781 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
2789 * return atom link elements for all of our hubs
2792 if(! function_exists('feed_hublinks')) {
2793 function feed_hublinks() {
2795 $hub = get_config('system','huburl');
2799 $hubs = explode(',', $hub);
2801 foreach($hubs as $h) {
2805 $hubxml .= '<link rel="hub" href="' . xmlify($h) . '" />' . "\n" ;
2812 /* return atom link elements for salmon endpoints */
2814 if(! function_exists('feed_salmonlinks')) {
2815 function feed_salmonlinks($nick) {
2819 $salmon = '<link rel="salmon" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2821 // old style links that status.net still needed as of 12/2010
2823 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-replies" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2824 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-mention" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2828 if(! function_exists('get_plink')) {
2829 function get_plink($item) {
2831 $plink = (((x($item,'plink')) && (! $item['private'])) ? '<div class="wall-item-links-wrapper"><a href="'
2832 . $item['plink'] . '" title="' . t('link to source') . '" target="external-link" class="icon remote-link"></a></div>' : '');
2836 if(! function_exists('unamp')) {
2837 function unamp($s) {
2838 return str_replace('&', '&', $s);
2844 if(! function_exists('lang_selector')) {
2845 function lang_selector() {
2847 $o = '<div id="lang-select-icon" class="icon language" title="' . t('Select an alternate language') . '" onclick="openClose(\'language-selector\');" ></div>';
2848 $o .= '<div id="language-selector" style="display: none;" >';
2849 $o .= '<form action="" method="post" ><select name="system_language" onchange="this.form.submit();" >';
2850 $langs = glob('view/*/strings.php');
2851 if(is_array($langs) && count($langs)) {
2852 if(! in_array('view/en/strings.php',$langs))
2853 $langs[] = 'view/en/';
2855 foreach($langs as $l) {
2857 $ll = substr($ll,0,strrpos($ll,'/'));
2858 $selected = (($ll === $lang) ? ' selected="selected" ' : '');
2859 $o .= '<option value="' . $ll . '"' . $selected . '>' . $ll . '</option>';
2862 $o .= '</select></form></div>';
2867 if(! function_exists('parse_xml_string')) {
2868 function parse_xml_string($s,$strict = true) {
2870 if(! strstr($s,'<?xml'))
2872 $s2 = substr($s,strpos($s,'<?xml'));
2876 libxml_use_internal_errors(true);
2878 $x = @simplexml_load_string($s2);
2880 logger('libxml: parse: error: ' . $s2, LOGGER_DATA);
2881 foreach(libxml_get_errors() as $err)
2882 logger('libxml: parse: ' . $err->code." at ".$err->line.":".$err->column." : ".$err->message, LOGGER_DATA);
2883 libxml_clear_errors();
2888 if(! function_exists('is_site_admin')) {
2889 function is_site_admin() {
2891 if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
2897 * parse plugin comment in search of plugin infos.
2901 * * Description: A plugin which plugs in
2903 * * Author: John <profile url>
2904 * * Author: Jane <email>
2908 if (! function_exists('get_plugin_info')){
2909 function get_plugin_info($plugin){
2910 if (!is_file("addon/$plugin/$plugin.php")) return false;
2912 $f = file_get_contents("addon/$plugin/$plugin.php");
2913 $r = preg_match("|/\*.*\*/|msU", $f, $m);
2917 'description' => "",
2918 'author' => array(),
2923 $ll = explode("\n", $m[0]);
2924 foreach( $ll as $l ) {
2925 $l = trim($l,"\t\n\r */");
2927 list($k,$v) = array_map("trim", explode(":",$l,2));
2930 $r=preg_match("|([^<]+)<([^>]+)>|", $v, $m);
2932 $info['author'][] = array('name'=>$m[1], 'link'=>$m[2]);
2934 $info['author'][] = array('name'=>$v);
2937 if (array_key_exists($k,$info)){
2949 if(! function_exists('return_bytes')) {
2950 function return_bytes ($size_str) {
2951 switch (substr ($size_str, -1))
2953 case 'M': case 'm': return (int)$size_str * 1048576;
2954 case 'K': case 'k': return (int)$size_str * 1024;
2955 case 'G': case 'g': return (int)$size_str * 1073741824;
2956 default: return $size_str;
2960 function generate_guid() {
2963 $guid = substr(random_string(),0,16);
2964 $x = q("SELECT `uid` FROM `user` WHERE `guid` = '%s' LIMIT 1",
2969 } while ($found == true );