4 ini_set('pcre.backtrack_limit', 250000);
7 define ( 'FRIENDIKA_VERSION', '2.2.1038' );
8 define ( 'DFRN_PROTOCOL_VERSION', '2.21' );
9 define ( 'DB_UPDATE_VERSION', 1075 );
11 define ( 'EOL', "<br />\r\n" );
12 define ( 'ATOM_TIME', 'Y-m-d\TH:i:s\Z' );
13 define ( 'DOWN_ARROW', '⇩' );
17 * Image storage quality. Lower numbers save space at cost of image detail.
18 * For ease of upgrade, please do not change here. Change jpeg quality with
19 * set_config('system','jpeg_quality',n) in .htconfig.php
20 * where n is netween 1 and 100, and with very poor results below about 50
24 define ( 'JPEG_QUALITY', 100 );
27 * SSL redirection policies
30 define ( 'SSL_POLICY_NONE', 0 );
31 define ( 'SSL_POLICY_FULL', 1 );
32 define ( 'SSL_POLICY_SELFSIGN', 2 );
39 define ( 'LOGGER_NORMAL', 0 );
40 define ( 'LOGGER_TRACE', 1 );
41 define ( 'LOGGER_DEBUG', 2 );
42 define ( 'LOGGER_DATA', 3 );
43 define ( 'LOGGER_ALL', 4 );
46 * registration policies
49 define ( 'REGISTER_CLOSED', 0 );
50 define ( 'REGISTER_APPROVE', 1 );
51 define ( 'REGISTER_OPEN', 2 );
55 * When used in contact records, this indicates that 'uid' has
56 * this relationship with contact['name']
59 define ( 'REL_VIP', 1); // other person is 'following' us
60 define ( 'REL_FAN', 2); // we are 'following' other person
61 define ( 'REL_BUD', 3); // mutual relationship
67 define ( 'HOOK_HOOK', 0);
68 define ( 'HOOK_FILE', 1);
69 define ( 'HOOK_FUNCTION', 2);
75 * PAGE_NORMAL is a typical personal profile account
76 * PAGE_SOAPBOX automatically approves all friend requests as REL_FAN, (readonly)
77 * PAGE_COMMUNITY automatically approves all friend requests as REL_FAN, but with
78 * write access to wall and comments (no email and not included in page owner's ACL lists)
79 * PAGE_FREELOVE automatically approves all friend requests as full friends (REL_BUD).
83 define ( 'PAGE_NORMAL', 0 );
84 define ( 'PAGE_SOAPBOX', 1 );
85 define ( 'PAGE_COMMUNITY', 2 );
86 define ( 'PAGE_FREELOVE', 3 );
89 * Network and protocol family types
92 define ( 'NETWORK_ZOT', 'zot!'); // Zot!
93 define ( 'NETWORK_DFRN', 'dfrn'); // Friendika, Mistpark, other DFRN implementations
94 define ( 'NETWORK_OSTATUS', 'stat'); // status.net, identi.ca, GNU-social, other OStatus implementations
95 define ( 'NETWORK_FEED', 'feed'); // RSS/Atom feeds with no known "post/notify" protocol
96 define ( 'NETWORK_DIASPORA', 'dspr'); // Diaspora
97 define ( 'NETWORK_MAIL', 'mail'); // IMAP/POP
98 define ( 'NETWORK_FACEBOOK', 'face'); // Facebook API
102 * Maximum number of "people who like (or don't like) this" that we will list by name
105 define ( 'MAX_LIKERS', 75);
108 * email notification options
111 define ( 'NOTIFY_INTRO', 0x0001 );
112 define ( 'NOTIFY_CONFIRM', 0x0002 );
113 define ( 'NOTIFY_WALL', 0x0004 );
114 define ( 'NOTIFY_COMMENT', 0x0008 );
115 define ( 'NOTIFY_MAIL', 0x0010 );
118 * various namespaces we may need to parse
121 define ( 'NAMESPACE_ZOT', 'http://purl.org/macgirvin/zot' );
122 define ( 'NAMESPACE_DFRN' , 'http://purl.org/macgirvin/dfrn/1.0' );
123 define ( 'NAMESPACE_THREAD' , 'http://purl.org/syndication/thread/1.0' );
124 define ( 'NAMESPACE_TOMB' , 'http://purl.org/atompub/tombstones/1.0' );
125 define ( 'NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/' );
126 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
127 define ( 'NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia' );
128 define ( 'NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env' );
129 define ( 'NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe' );
130 define ( 'NAMESPACE_GEORSS', 'http://www.georss.org/georss' );
131 define ( 'NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0' );
132 define ( 'NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from' );
133 define ( 'NAMESPACE_OSTATUS', 'http://ostatus.org/schema/1.0' );
134 define ( 'NAMESPACE_STATUSNET', 'http://status.net/schema/api/1/' );
137 * activity stream defines
140 define ( 'ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like' );
141 define ( 'ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike' );
142 define ( 'ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart' );
144 define ( 'ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
145 define ( 'ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
146 define ( 'ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
147 define ( 'ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post' );
148 define ( 'ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update' );
149 define ( 'ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
151 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
152 define ( 'ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note' );
153 define ( 'ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person' );
154 define ( 'ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
155 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
156 define ( 'ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
157 define ( 'ACTIVITY_OBJ_EVENT', NAMESPACE_ACTIVITY_SCHEMA . 'event' );
160 * item weight for query ordering
163 define ( 'GRAVITY_PARENT', 0);
164 define ( 'GRAVITY_LIKE', 3);
165 define ( 'GRAVITY_COMMENT', 6);
169 * Reverse the effect of magic_quotes_gpc if it is enabled.
170 * Please disable magic_quotes_gpc so we don't have to do this.
171 * See http://php.net/manual/en/security.magicquotes.disabling.php
175 if (get_magic_quotes_gpc()) {
176 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
177 while (list($key, $val) = each($process)) {
178 foreach ($val as $k => $v) {
179 unset($process[$key][$k]);
181 $process[$key][stripslashes($k)] = $v;
182 $process[] = &$process[$key][stripslashes($k)];
184 $process[$key][stripslashes($k)] = stripslashes($v);
194 require_once("include/pgettext.php");
201 * Our main application structure for the life of this page
202 * Primarily deals with the URL that got us here
203 * and tries to make some sense of it, and
204 * stores our page contents and config storage
205 * and anything else that might need to be passed around
206 * before we spit the page out.
210 if(! class_exists('App')) {
213 public $module_loaded = false;
214 public $query_string;
222 public $page_contact;
225 public $error = false;
235 public $interactive = true;
246 private $curl_headers;
248 function __construct() {
250 $this->config = array();
251 $this->page = array();
252 $this->pager= array();
254 $this->query_string = '';
256 $this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'])) ? 'https' : 'http' );
258 if(x($_SERVER,'SERVER_NAME')) {
259 $this->hostname = $_SERVER['SERVER_NAME'];
262 * Figure out if we are running at the top of a domain
263 * or in a sub-directory and adjust accordingly
266 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
267 if(isset($path) && strlen($path) && ($path != $this->path))
271 set_include_path("include/$this->hostname" . PATH_SEPARATOR . 'include' . PATH_SEPARATOR . '.' );
273 if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=")
274 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
276 $this->cmd = trim($_GET['q'],'/\\');
282 * Break the URL path into C style argc/argv style arguments for our
283 * modules. Given "http://example.com/module/arg1/arg2", $this->argc
284 * will be 3 (integer) and $this->argv will contain:
290 * There will always be one argument. If provided a naked domain
291 * URL, $this->argv[0] is set to "home".
295 $this->argv = explode('/',$this->cmd);
296 $this->argc = count($this->argv);
297 if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
298 $this->module = str_replace(".", "_", $this->argv[0]);
302 $this->argv = array('home');
303 $this->module = 'home';
307 * Special handling for the webfinger/lrdd host XRD file
308 * Just spit out the contents and exit.
311 if($this->cmd === '.well-known/host-meta') {
312 require_once('include/hostxrd.php');
313 hostxrd($this->get_baseurl());
318 * See if there is any page number information, and initialise
322 $this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1);
323 $this->pager['itemspage'] = 50;
324 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
325 $this->pager['total'] = 0;
328 function get_baseurl($ssl = false) {
330 $scheme = $this->scheme;
332 if(x($this->config,'ssl_policy')) {
333 if(($ssl) || ($this->config['ssl_policy'] == SSL_POLICY_FULL))
335 if(($this->config['ssl_policy'] == SSL_POLICY_SELFSIGN) && (local_user() || x($_POST,'auth-params')))
339 $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
340 return $this->baseurl;
343 function set_baseurl($url) {
344 $parsed = @parse_url($url);
346 $this->baseurl = $url;
349 $this->scheme = $parsed['scheme'];
351 $this->hostname = $parsed['host'];
352 if(x($parsed,'port'))
353 $this->hostname .= ':' . $parsed['port'];
354 if(x($parsed,'path'))
355 $this->path = trim($parsed['path'],'\\/');
360 function get_hostname() {
361 return $this->hostname;
364 function set_hostname($h) {
365 $this->hostname = $h;
368 function set_path($p) {
369 $this->path = trim(trim($p),'/');
372 function get_path() {
376 function set_pager_total($n) {
377 $this->pager['total'] = intval($n);
380 function set_pager_itemspage($n) {
381 $this->pager['itemspage'] = intval($n);
382 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
386 function init_pagehead() {
387 $this->page['title'] = $this->config['sitename'];
388 $tpl = file_get_contents('view/head.tpl');
389 $this->page['htmlhead'] = replace_macros($tpl,array(
390 '$baseurl' => $this->get_baseurl(),
391 '$generator' => 'Friendika' . ' ' . FRIENDIKA_VERSION,
392 '$delitem' => t('Delete this item?'),
393 '$comment' => t('Comment')
397 function set_curl_code($code) {
398 $this->curl_code = $code;
401 function get_curl_code() {
402 return $this->curl_code;
405 function set_curl_headers($headers) {
406 $this->curl_headers = $headers;
409 function get_curl_headers() {
410 return $this->curl_headers;
416 // retrieve the App structure
417 // useful in functions which require it but don't get it passed to them
419 if(! function_exists('get_app')) {
426 // Multi-purpose function to check variable state.
427 // Usage: x($var) or $x($array,'key')
428 // returns false if variable/key is not set
429 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
430 // e.g. x('') or x(0) returns 0;
432 if(! function_exists('x')) {
433 function x($s,$k = NULL) {
435 if((is_array($s)) && (array_key_exists($k,$s))) {
453 // called from db initialisation if db is dead.
455 if(! function_exists('system_unavailable')) {
456 function system_unavailable() {
457 include('system_unavailable.php');
463 // install and uninstall plugin
464 if (! function_exists('uninstall_plugin')){
465 function uninstall_plugin($plugin){
466 logger("Addons: uninstalling " . $plugin);
467 q("DELETE FROM `addon` WHERE `name` = '%s' LIMIT 1",
471 @include_once('addon/' . $plugin . '/' . $plugin . '.php');
472 if(function_exists($plugin . '_uninstall')) {
473 $func = $plugin . '_uninstall';
478 if (! function_exists('install_plugin')){
479 function install_plugin($plugin){
480 logger("Addons: installing " . $plugin);
481 $t = filemtime('addon/' . $plugin . '/' . $plugin . '.php');
482 @include_once('addon/' . $plugin . '/' . $plugin . '.php');
483 if(function_exists($plugin . '_install')) {
484 $func = $plugin . '_install';
487 $plugin_admin = (function_exists($plugin."_plugin_admin")?1:0);
489 $r = q("INSERT INTO `addon` (`name`, `installed`, `timestamp`, `plugin_admin`) VALUES ( '%s', 1, %d , %d ) ",
497 // Primarily involved with database upgrade, but also sets the
498 // base url for use in cmdline programs which don't have
499 // $_SERVER variables, and synchronising the state of installed plugins.
502 if(! function_exists('check_config')) {
503 function check_config(&$a) {
505 $build = get_config('system','build');
507 $build = set_config('system','build',DB_UPDATE_VERSION);
509 $url = get_config('system','url');
511 // if the url isn't set or the stored url is radically different
512 // than the currently visited url, store the current value accordingly.
513 // "Radically different" ignores common variations such as http vs https
514 // and www.example.com vs example.com.
516 if((! x($url)) || (! link_compare($url,$a->get_baseurl())))
517 $url = set_config('system','url',$a->get_baseurl());
519 if($build != DB_UPDATE_VERSION) {
520 $stored = intval($build);
521 $current = intval(DB_UPDATE_VERSION);
522 if(($stored < $current) && file_exists('update.php')) {
524 // We're reporting a different version than what is currently installed.
525 // Run any existing update scripts to bring the database up to current.
527 require_once('update.php');
529 // make sure that boot.php and update.php are the same release, we might be
530 // updating right this very second and the correct version of the update.php
531 // file may not be here yet. This can happen on a very busy site.
533 if(DB_UPDATE_VERSION == UPDATE_VERSION) {
535 for($x = $stored; $x < $current; $x ++) {
536 if(function_exists('update_' . $x)) {
537 $func = 'update_' . $x;
541 set_config('system','build', DB_UPDATE_VERSION);
548 * Synchronise plugins:
550 * $a->config['system']['addon'] contains a comma-separated list of names
551 * of plugins/addons which are used on this system.
552 * Go through the database list of already installed addons, and if we have
553 * an entry, but it isn't in the config list, call the uninstall procedure
554 * and mark it uninstalled in the database (for now we'll remove it).
555 * Then go through the config list and if we have a plugin that isn't installed,
556 * call the install procedure and add it to the database.
560 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
564 $installed = array();
566 $plugins = get_config('system','addon');
567 $plugins_arr = array();
570 $plugins_arr = explode(',',str_replace(' ', '',$plugins));
572 $a->plugins = $plugins_arr;
574 $installed_arr = array();
576 if(count($installed)) {
577 foreach($installed as $i) {
578 if(! in_array($i['name'],$plugins_arr)) {
579 uninstall_plugin($i['name']);
582 $installed_arr[] = $i['name'];
586 if(count($plugins_arr)) {
587 foreach($plugins_arr as $p) {
588 if(! in_array($p,$installed_arr)) {
600 // reload all updated plugins
602 if(! function_exists('reload_plugins')) {
603 function reload_plugins() {
604 $plugins = get_config('system','addon');
605 if(strlen($plugins)) {
607 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
611 $installed = array();
613 $parr = explode(',',$plugins);
615 foreach($parr as $pl) {
618 $t = filemtime('addon/' . $pl . '/' . $pl . '.php');
619 foreach($installed as $i) {
620 if(($i['name'] == $pl) && ($i['timestamp'] != $t)) {
621 logger('Reloading plugin: ' . $i['name']);
622 @include_once('addon/' . $pl . '/' . $pl . '.php');
624 if(function_exists($pl . '_uninstall')) {
625 $func = $pl . '_uninstall';
628 if(function_exists($pl . '_install')) {
629 $func = $pl . '_install';
632 q("UPDATE `addon` SET `timestamp` = %d WHERE `id` = %d LIMIT 1",
645 // This is our template processor.
646 // $s is the string requiring macro substitution.
647 // $r is an array of key value pairs (search => replace)
648 // returns substituted string.
649 // WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other.
650 // For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing,
651 // depending on the order in which they were declared in the array.
653 require_once("include/template_processor.php");
655 if(! function_exists('replace_macros')) {
656 function replace_macros($s,$r) {
659 return $t->replace($s,$r);
664 // curl wrapper. If binary flag is true, return binary
667 if(! function_exists('fetch_url')) {
668 function fetch_url($url,$binary = false, &$redirects = 0) {
672 $ch = curl_init($url);
673 if(($redirects > 8) || (! $ch))
676 curl_setopt($ch, CURLOPT_HEADER, true);
677 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
678 curl_setopt($ch, CURLOPT_USERAGENT, "Friendika");
680 $curl_time = intval(get_config('system','curl_timeout'));
681 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
683 // by default we will allow self-signed certs
684 // but you can override this
686 $check_cert = get_config('system','verifyssl');
687 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
689 $prx = get_config('system','proxy');
691 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
692 curl_setopt($ch, CURLOPT_PROXY, $prx);
693 $prxusr = get_config('system','proxyuser');
695 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
698 curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
700 $a->set_curl_code(0);
702 // don't let curl abort the entire application
703 // if it throws any errors.
705 $s = @curl_exec($ch);
708 $curl_info = curl_getinfo($ch);
709 $http_code = $curl_info['http_code'];
713 // Pull out multiple headers, e.g. proxy and continuation headers
714 // allow for HTTP/2.x without fixing code
716 while(preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/',$base)) {
717 $chunk = substr($base,0,strpos($base,"\r\n\r\n")+4);
719 $base = substr($base,strlen($chunk));
722 if($http_code == 301 || $http_code == 302 || $http_code == 303 || $http_code == 307) {
724 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
725 $url = trim(array_pop($matches));
726 $url_parsed = @parse_url($url);
727 if (isset($url_parsed)) {
729 return fetch_url($url,$binary,$redirects);
733 $a->set_curl_code($http_code);
735 $body = substr($s,strlen($header));
737 $a->set_curl_headers($header);
743 // post request to $url. $params is an array of post variables.
745 if(! function_exists('post_url')) {
746 function post_url($url,$params, $headers = null, &$redirects = 0) {
748 $ch = curl_init($url);
749 if(($redirects > 8) || (! $ch))
752 curl_setopt($ch, CURLOPT_HEADER, true);
753 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
754 curl_setopt($ch, CURLOPT_POST,1);
755 curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
756 curl_setopt($ch, CURLOPT_USERAGENT, "Friendika");
758 $curl_time = intval(get_config('system','curl_timeout'));
759 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
761 if(!is_array($headers)) {
762 $headers = array('Expect:');
764 if(!in_array('Expect:', $headers)) {
765 array_push($headers, 'Expect:');
769 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
771 $check_cert = get_config('system','verifyssl');
772 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
773 $prx = get_config('system','proxy');
775 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
776 curl_setopt($ch, CURLOPT_PROXY, $prx);
777 $prxusr = get_config('system','proxyuser');
779 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
782 $a->set_curl_code(0);
784 // don't let curl abort the entire application
785 // if it throws any errors.
787 $s = @curl_exec($ch);
790 $curl_info = curl_getinfo($ch);
791 $http_code = $curl_info['http_code'];
795 // Pull out multiple headers, e.g. proxy and continuation headers
796 // allow for HTTP/2.x without fixing code
798 while(preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/',$base)) {
799 $chunk = substr($base,0,strpos($base,"\r\n\r\n")+4);
801 $base = substr($base,strlen($chunk));
804 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
806 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
807 $url = trim(array_pop($matches));
808 $url_parsed = @parse_url($url);
809 if (isset($url_parsed)) {
811 return post_url($url,$binary,$headers,$redirects);
814 $a->set_curl_code($http_code);
815 $body = substr($s,strlen($header));
817 $a->set_curl_headers($header);
823 // random hash, 64 chars
825 if(! function_exists('random_string')) {
826 function random_string() {
827 return(hash('sha256',uniqid(rand(),true)));
831 * This is our primary input filter.
833 * The high bit hack only involved some old IE browser, forget which (IE5/Mac?)
834 * that had an XSS attack vector due to stripping the high-bit on an 8-bit character
835 * after cleansing, and angle chars with the high bit set could get through as markup.
837 * This is now disabled because it was interfering with some legitimate unicode sequences
838 * and hopefully there aren't a lot of those browsers left.
840 * Use this on any text input where angle chars are not valid or permitted
841 * They will be replaced with safer brackets. This may be filtered further
842 * if these are not allowed either.
846 if(! function_exists('notags')) {
847 function notags($string) {
849 return(str_replace(array("<",">"), array('[',']'), $string));
851 // High-bit filter no longer used
852 // return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string));
855 // use this on "body" or "content" input where angle chars shouldn't be removed,
856 // and allow them to be safely displayed.
858 if(! function_exists('escape_tags')) {
859 function escape_tags($string) {
861 return(htmlspecialchars($string));
864 // wrapper for adding a login box. If $register == true provide a registration
865 // link. This will most always depend on the value of $a->config['register_policy'].
866 // returns the complete html for inserting into the page
868 if(! function_exists('login')) {
869 function login($register = false) {
871 $register_tpl = (($register) ? get_markup_template("register-link.tpl") : "");
873 $register_html = replace_macros($register_tpl,array(
874 '$title' => t('Create a New Account'),
875 '$desc' => t('Register')
878 $noid = get_config('system','no_openid');
880 $classname = 'no-openid';
881 $namelabel = t('Nickname or Email address: ');
882 $passlabel = t('Password: ');
886 $classname = 'openid';
887 $namelabel = t('Nickname/Email/OpenID: ');
888 $passlabel = t("Password \x28if not OpenID\x29: ");
891 $lostpass = t('Forgot your password?');
892 $lostlink = t('Password Reset');
895 $tpl = get_markup_template("logout.tpl");
898 $tpl = get_markup_template("login.tpl");
902 $o = '<script type="text/javascript"> $(document).ready(function() { $("#login-name").focus();} );</script>';
904 $o .= replace_macros($tpl,array(
905 '$logout' => t('Logout'),
906 '$register_html' => $register_html,
907 '$classname' => $classname,
908 '$namelabel' => $namelabel,
909 '$passlabel' => $passlabel,
911 '$lostpass' => $lostpass,
912 '$lostlink' => $lostlink
918 // generate a string that's random, but usually pronounceable.
919 // used to generate initial passwords
921 if(! function_exists('autoname')) {
922 function autoname($len) {
924 $vowels = array('a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u');
925 if(mt_rand(0,5) == 4)
943 's','sc','sh','sm','sp','st',
951 $midcons = array('ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
952 'nd','ng','nk','nt','rn','rp','rt');
954 $noend = array('bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
955 'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh');
957 $start = mt_rand(0,2);
965 for ($x = 0; $x < $len; $x ++) {
966 $r = mt_rand(0,count($table) - 1);
969 if($table == $vowels)
970 $table = array_merge($cons,$midcons);
976 $word = substr($word,0,$len);
978 foreach($noend as $noe) {
979 if((strlen($word) > 2) && (substr($word,-2) == $noe)) {
980 $word = substr($word,0,-1);
984 if(substr($word,-1) == 'q')
985 $word = substr($word,0,-1);
989 // Used to end the current process, after saving session state.
991 if(! function_exists('killme')) {
993 session_write_close();
997 // redirect to another URL and terminate this process.
999 if(! function_exists('goaway')) {
1000 function goaway($s) {
1001 header("Location: $s");
1005 // Generic XML return
1006 // Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
1007 // of $st and an optional text <message> of $message and terminates the current process.
1009 if(! function_exists('xml_status')) {
1010 function xml_status($st, $message = '') {
1012 $xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
1015 logger('xml_status returning non_zero: ' . $st . " message=" . $message);
1017 header( "Content-type: text/xml" );
1018 echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
1019 echo "<result>\r\n\t<status>$st</status>\r\n$xml_message</result>\r\n";
1023 // Returns the uid of locally logged in user or false.
1025 if(! function_exists('local_user')) {
1026 function local_user() {
1027 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
1028 return intval($_SESSION['uid']);
1032 // Returns contact id of authenticated site visitor or false
1034 if(! function_exists('remote_user')) {
1035 function remote_user() {
1036 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
1037 return intval($_SESSION['visitor_id']);
1041 // contents of $s are displayed prominently on the page the next time
1042 // a page is loaded. Usually used for errors or alerts.
1044 if(! function_exists('notice')) {
1045 function notice($s) {
1048 $_SESSION['sysmsg'] .= $s;
1050 if(! function_exists('info')) {
1054 $_SESSION['sysmsg_info'] .= $s;
1058 // wrapper around config to limit the text length of an incoming message
1060 if(! function_exists('get_max_import_size')) {
1061 function get_max_import_size() {
1063 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
1067 // escape text ($str) for XML transport
1068 // returns escaped text.
1070 if(! function_exists('xmlify')) {
1071 function xmlify($str) {
1074 for($x = 0; $x < strlen($str); $x ++) {
1085 $buffer .= ''';
1088 $buffer .= '"';
1104 $buffer = trim($buffer);
1109 // pass xml escaped text ($s), returns unescaped text
1111 if(! function_exists('unxmlify')) {
1112 function unxmlify($s) {
1113 $ret = str_replace('&','&', $s);
1114 $ret = str_replace(array('<','>','"','''),array('<','>','"',"'"),$ret);
1118 // convenience wrapper, reverse the operation "bin2hex"
1120 if(! function_exists('hex2bin')) {
1121 function hex2bin($s) {
1122 if(! ctype_xdigit($s)) {
1123 logger('hex2bin: illegal input: ' . print_r(debug_backtrace(), true));
1127 return(pack("H*",$s));
1130 // Automatic pagination.
1131 // To use, get the count of total items.
1132 // Then call $a->set_pager_total($number_items);
1133 // Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page
1134 // Then call paginate($a) after the end of the display loop to insert the pager block on the page
1135 // (assuming there are enough items to paginate).
1136 // When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage']
1137 // will limit the results to the correct items for the current page.
1138 // The actual page handling is then accomplished at the application layer.
1140 if(! function_exists('paginate')) {
1141 function paginate(&$a) {
1143 $stripped = preg_replace('/(&page=[0-9]*)/','',$a->query_string);
1144 $stripped = str_replace('q=','',$stripped);
1145 $stripped = trim($stripped,'/');
1146 $pagenum = $a->pager['page'];
1147 $url = $a->get_baseurl() . '/' . $stripped;
1150 if($a->pager['total'] > $a->pager['itemspage']) {
1151 $o .= '<div class="pager">';
1152 if($a->pager['page'] != 1)
1153 $o .= '<span class="pager_prev">'."<a href=\"$url".'&page='.($a->pager['page'] - 1).'">' . t('prev') . '</a></span> ';
1155 $o .= "<span class=\"pager_first\"><a href=\"$url"."&page=1\">" . t('first') . "</a></span> ";
1157 $numpages = $a->pager['total'] / $a->pager['itemspage'];
1160 $numstop = $numpages;
1162 if($numpages > 14) {
1163 $numstart = (($pagenum > 7) ? ($pagenum - 7) : 1);
1164 $numstop = (($pagenum > ($numpages - 7)) ? $numpages : ($numstart + 14));
1167 for($i = $numstart; $i <= $numstop; $i++){
1168 if($i == $a->pager['page'])
1169 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1171 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1175 if(($a->pager['total'] % $a->pager['itemspage']) != 0) {
1176 if($i == $a->pager['page'])
1177 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1179 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1183 $lastpage = (($numpages > intval($numpages)) ? intval($numpages)+1 : $numpages);
1184 $o .= "<span class=\"pager_last\"><a href=\"$url"."&page=$lastpage\">" . t('last') . "</a></span> ";
1186 if(($a->pager['total'] - ($a->pager['itemspage'] * $a->pager['page'])) > 0)
1187 $o .= '<span class="pager_next">'."<a href=\"$url"."&page=".($a->pager['page'] + 1).'">' . t('next') . '</a></span>';
1188 $o .= '</div>'."\r\n";
1193 // Turn user/group ACLs stored as angle bracketed text into arrays
1195 if(! function_exists('expand_acl')) {
1196 function expand_acl($s) {
1197 // turn string array of angle-bracketed elements into numeric array
1198 // e.g. "<1><2><3>" => array(1,2,3);
1202 $t = str_replace('<','',$s);
1203 $a = explode('>',$t);
1204 foreach($a as $aa) {
1206 $ret[] = intval($aa);
1212 // Used to wrap ACL elements in angle brackets for storage
1214 if(! function_exists('sanitise_acl')) {
1215 function sanitise_acl(&$item) {
1217 $item = '<' . intval(notags(trim($item))) . '>';
1222 // retrieve a "family" of config variables from database to cached storage
1224 if(! function_exists('load_config')) {
1225 function load_config($family) {
1227 $r = q("SELECT * FROM `config` WHERE `cat` = '%s'",
1231 foreach($r as $rr) {
1233 if ($rr['cat'] === 'config') {
1234 $a->config[$k] = $rr['v'];
1236 $a->config[$family][$k] = $rr['v'];
1242 // get a particular config variable given the family name
1243 // and key. Returns false if not set.
1244 // $instore is only used by the set_config function
1245 // to determine if the key already exists in the DB
1246 // If a key is found in the DB but doesn't exist in
1247 // local config cache, pull it into the cache so we don't have
1248 // to hit the DB again for this item.
1250 if(! function_exists('get_config')) {
1251 function get_config($family, $key, $instore = false) {
1256 if(isset($a->config[$family][$key])) {
1257 if($a->config[$family][$key] === '!<unset>!') {
1260 return $a->config[$family][$key];
1263 $ret = q("SELECT `v` FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1268 // manage array value
1269 $val = (preg_match("|^a:[0-9]+:{.*}$|", $ret[0]['v'])?unserialize( $ret[0]['v']):$ret[0]['v']);
1270 $a->config[$family][$key] = $val;
1274 $a->config[$family][$key] = '!<unset>!';
1279 // Store a config value ($value) in the category ($family)
1280 // under the key ($key)
1281 // Return the value, or false if the database update failed
1283 if(! function_exists('set_config')) {
1284 function set_config($family,$key,$value) {
1287 // manage array value
1288 $dbvalue = (is_array($value)?serialize($value):$value);
1290 if(get_config($family,$key,true) === false) {
1291 $a->config[$family][$key] = $value;
1292 $ret = q("INSERT INTO `config` ( `cat`, `k`, `v` ) VALUES ( '%s', '%s', '%s' ) ",
1302 $ret = q("UPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1308 $a->config[$family][$key] = $value;
1316 if(! function_exists('load_pconfig')) {
1317 function load_pconfig($uid,$family) {
1319 $r = q("SELECT * FROM `pconfig` WHERE `cat` = '%s' AND `uid` = %d",
1324 foreach($r as $rr) {
1326 $a->config[$uid][$family][$k] = $rr['v'];
1333 if(! function_exists('get_pconfig')) {
1334 function get_pconfig($uid,$family, $key, $instore = false) {
1339 if(isset($a->config[$uid][$family][$key])) {
1340 if($a->config[$uid][$family][$key] === '!<unset>!') {
1343 return $a->config[$uid][$family][$key];
1347 $ret = q("SELECT `v` FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1354 $a->config[$uid][$family][$key] = $ret[0]['v'];
1355 return $ret[0]['v'];
1358 $a->config[$uid][$family][$key] = '!<unset>!';
1363 if(! function_exists('del_config')) {
1364 function del_config($family,$key) {
1367 if(x($a->config[$family],$key))
1368 unset($a->config[$family][$key]);
1369 $ret = q("DELETE FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1378 // Same as above functions except these are for personal config storage and take an
1379 // additional $uid argument.
1381 if(! function_exists('set_pconfig')) {
1382 function set_pconfig($uid,$family,$key,$value) {
1386 if(get_pconfig($uid,$family,$key,true) === false) {
1387 $a->config[$uid][$family][$key] = $value;
1388 $ret = q("INSERT INTO `pconfig` ( `uid`, `cat`, `k`, `v` ) VALUES ( %d, '%s', '%s', '%s' ) ",
1398 $ret = q("UPDATE `pconfig` SET `v` = '%s' WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1405 $a->config[$uid][$family][$key] = $value;
1412 if(! function_exists('del_pconfig')) {
1413 function del_pconfig($uid,$family,$key) {
1416 if(x($a->config[$uid][$family],$key))
1417 unset($a->config[$uid][$family][$key]);
1418 $ret = q("DELETE FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1427 // convert an XML document to a normalised, case-corrected array
1428 // used by webfinger
1430 if(! function_exists('convert_xml_element_to_array')) {
1431 function convert_xml_element_to_array($xml_element, &$recursion_depth=0) {
1433 // If we're getting too deep, bail out
1434 if ($recursion_depth > 512) {
1438 if (!is_string($xml_element) &&
1439 !is_array($xml_element) &&
1440 (get_class($xml_element) == 'SimpleXMLElement')) {
1441 $xml_element_copy = $xml_element;
1442 $xml_element = get_object_vars($xml_element);
1445 if (is_array($xml_element)) {
1446 $result_array = array();
1447 if (count($xml_element) <= 0) {
1448 return (trim(strval($xml_element_copy)));
1451 foreach($xml_element as $key=>$value) {
1454 $result_array[strtolower($key)] =
1455 convert_xml_element_to_array($value, $recursion_depth);
1458 if ($recursion_depth == 0) {
1459 $temp_array = $result_array;
1460 $result_array = array(
1461 strtolower($xml_element_copy->getName()) => $temp_array,
1465 return ($result_array);
1468 return (trim(strval($xml_element)));
1472 // Given an email style address, perform webfinger lookup and
1473 // return the resulting DFRN profile URL, or if no DFRN profile URL
1474 // is located, returns an OStatus subscription template (prefixed
1475 // with the string 'stat:' to identify it as on OStatus template).
1476 // If this isn't an email style address just return $s.
1477 // Return an empty string if email-style addresses but webfinger fails,
1478 // or if the resultant personal XRD doesn't contain a supported
1479 // subscription/friend-request attribute.
1481 if(! function_exists('webfinger_dfrn')) {
1482 function webfinger_dfrn($s) {
1483 if(! strstr($s,'@')) {
1486 $links = webfinger($s);
1487 logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA);
1489 foreach($links as $link)
1490 if($link['@attributes']['rel'] === NAMESPACE_DFRN)
1491 return $link['@attributes']['href'];
1492 foreach($links as $link)
1493 if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB)
1494 return 'stat:' . $link['@attributes']['template'];
1499 // Given an email style address, perform webfinger lookup and
1500 // return the array of link attributes from the personal XRD file.
1501 // On error/failure return an empty array.
1504 if(! function_exists('webfinger')) {
1505 function webfinger($s) {
1507 if(strstr($s,'@')) {
1508 $host = substr($s,strpos($s,'@') + 1);
1511 $tpl = fetch_lrdd_template($host);
1512 logger('webfinger: lrdd template: ' . $tpl);
1514 $pxrd = str_replace('{uri}', urlencode('acct:' . $s), $tpl);
1515 logger('webfinger: pxrd: ' . $pxrd);
1516 $links = fetch_xrd_links($pxrd);
1517 if(! count($links)) {
1518 // try with double slashes
1519 $pxrd = str_replace('{uri}', urlencode('acct://' . $s), $tpl);
1520 logger('webfinger: pxrd: ' . $pxrd);
1521 $links = fetch_xrd_links($pxrd);
1529 if(! function_exists('lrdd')) {
1530 function lrdd($uri) {
1534 // default priority is host priority, host-meta first
1538 // All we have is an email address. Resource-priority is irrelevant
1539 // because our URI isn't directly resolvable.
1541 if(strstr($uri,'@')) {
1542 return(webfinger($uri));
1545 // get the host meta file
1547 $host = @parse_url($uri);
1550 $url = ((x($host,'scheme')) ? $host['scheme'] : 'http') . '://';
1551 $url .= $host['host'] . '/.well-known/host-meta' ;
1556 logger('lrdd: constructed url: ' . $url);
1558 $xml = fetch_url($url);
1559 $headers = $a->get_curl_headers();
1564 logger('lrdd: host_meta: ' . $xml, LOGGER_DATA);
1566 $h = parse_xml_string($xml);
1570 $arr = convert_xml_element_to_array($h);
1572 if(isset($arr['xrd']['property'])) {
1573 $property = $arr['crd']['property'];
1574 if(! isset($property[0]))
1575 $properties = array($property);
1577 $properties = $property;
1578 foreach($properties as $prop)
1579 if((string) $prop['@attributes'] === 'http://lrdd.net/priority/resource')
1580 $priority = 'resource';
1583 // save the links in case we need them
1587 if(isset($arr['xrd']['link'])) {
1588 $link = $arr['xrd']['link'];
1589 if(! isset($link[0]))
1590 $links = array($link);
1595 // do we have a template or href?
1598 foreach($links as $link) {
1599 if($link['@attributes']['rel'] && attribute_contains($link['@attributes']['rel'],'lrdd')) {
1600 if(x($link['@attributes'],'template'))
1601 $tpl = $link['@attributes']['template'];
1602 elseif(x($link['@attributes'],'href'))
1603 $href = $link['@attributes']['href'];
1608 if((! isset($tpl)) || (! strpos($tpl,'{uri}')))
1611 if($priority === 'host') {
1613 $pxrd = str_replace('{uri}', urlencode($uri), $tpl);
1614 elseif(isset($href))
1617 logger('lrdd: (host priority) pxrd: ' . $pxrd);
1618 $links = fetch_xrd_links($pxrd);
1622 $lines = explode("\n",$headers);
1624 foreach($lines as $line) {
1625 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1626 return(fetch_xrd_links($matches[1]));
1634 // priority 'resource'
1637 $html = fetch_url($uri);
1638 $headers = $a->get_curl_headers();
1639 logger('lrdd: headers=' . $headers, LOGGER_DEBUG);
1641 // don't try and parse raw xml as html
1642 if(! strstr($html,'<?xml')) {
1643 require_once('library/HTML5/Parser.php');
1644 $dom = @HTML5_Parser::parse($html);
1647 $items = $dom->getElementsByTagName('link');
1648 foreach($items as $item) {
1649 $x = $item->getAttribute('rel');
1651 $pagelink = $item->getAttribute('href');
1658 if(isset($pagelink))
1659 return(fetch_xrd_links($pagelink));
1661 // next look in HTTP headers
1663 $lines = explode("\n",$headers);
1665 foreach($lines as $line) {
1666 // TODO alter the following regex to support multiple relations (space separated)
1667 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1668 $pagelink = $matches[1];
1671 // don't try and run feeds through the html5 parser
1672 if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml'))))
1674 if(stristr($html,'<rss') || stristr($html,'<feed'))
1679 if(isset($pagelink))
1680 return(fetch_xrd_links($pagelink));
1682 // If we haven't found any links, return the host xrd links (which we have already fetched)
1693 // Given a host name, locate the LRDD template from that
1694 // host. Returns the LRDD template or an empty string on
1697 if(! function_exists('fetch_lrdd_template')) {
1698 function fetch_lrdd_template($host) {
1701 $url1 = 'https://' . $host . '/.well-known/host-meta' ;
1702 $url2 = 'http://' . $host . '/.well-known/host-meta' ;
1703 $links = fetch_xrd_links($url1);
1704 logger('fetch_lrdd_template from: ' . $url1);
1705 logger('template (https): ' . print_r($links,true));
1706 if(! count($links)) {
1707 logger('fetch_lrdd_template from: ' . $url2);
1708 $links = fetch_xrd_links($url2);
1709 logger('template (http): ' . print_r($links,true));
1712 foreach($links as $link)
1713 if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd')
1714 $tpl = $link['@attributes']['template'];
1716 if(! strpos($tpl,'{uri}'))
1721 // Given a URL, retrieve the page as an XRD document.
1722 // Return an array of links.
1723 // on error/failure return empty array.
1725 if(! function_exists('fetch_xrd_links')) {
1726 function fetch_xrd_links($url) {
1729 $xml = fetch_url($url);
1733 logger('fetch_xrd_links: ' . $xml, LOGGER_DATA);
1734 $h = parse_xml_string($xml);
1738 $arr = convert_xml_element_to_array($h);
1742 if(isset($arr['xrd']['link'])) {
1743 $link = $arr['xrd']['link'];
1744 if(! isset($link[0]))
1745 $links = array($link);
1749 if(isset($arr['xrd']['alias'])) {
1750 $alias = $arr['xrd']['alias'];
1751 if(! isset($alias[0]))
1752 $aliases = array($alias);
1755 foreach($aliases as $alias) {
1756 $links[]['@attributes'] = array('rel' => 'alias' , 'href' => $alias);
1760 logger('fetch_xrd_links: ' . print_r($links,true), LOGGER_DATA);
1766 // Convert an ACL array to a storable string
1768 if(! function_exists('perms2str')) {
1769 function perms2str($p) {
1772 if(is_array($tmp)) {
1773 array_walk($tmp,'sanitise_acl');
1774 $ret = implode('',$tmp);
1779 // generate a guaranteed unique (for this domain) item ID for ATOM
1780 // safe from birthday paradox
1782 if(! function_exists('item_new_uri')) {
1783 function item_new_uri($hostname,$uid) {
1787 $hash = random_string();
1789 $uri = "urn:X-dfrn:" . $hostname . ':' . $uid . ':' . $hash;
1791 $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
1795 } while($dups == true);
1799 // Generate a guaranteed unique photo ID.
1800 // safe from birthday paradox
1802 if(! function_exists('photo_new_resource')) {
1803 function photo_new_resource() {
1807 $resource = hash('md5',uniqid(mt_rand(),true));
1808 $r = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1",
1813 } while($found == true);
1818 // Take a URL from the wild, prepend http:// if necessary
1819 // and check DNS to see if it's real
1820 // return true if it's OK, false if something is wrong with it
1822 if(! function_exists('validate_url')) {
1823 function validate_url(&$url) {
1824 if(substr($url,0,4) != 'http')
1825 $url = 'http://' . $url;
1826 $h = @parse_url($url);
1828 if(($h) && (dns_get_record($h['host'], DNS_A + DNS_CNAME + DNS_PTR))) {
1834 // checks that email is an actual resolvable internet address
1836 if(! function_exists('validate_email')) {
1837 function validate_email($addr) {
1839 if(! strpos($addr,'@'))
1841 $h = substr($addr,strpos($addr,'@') + 1);
1843 if(($h) && (dns_get_record($h, DNS_A + DNS_CNAME + DNS_PTR + DNS_MX))) {
1849 // Check $url against our list of allowed sites,
1850 // wildcards allowed. If allowed_sites is unset return true;
1851 // If url is allowed, return true.
1852 // otherwise, return false
1854 if(! function_exists('allowed_url')) {
1855 function allowed_url($url) {
1857 $h = @parse_url($url);
1863 $str_allowed = get_config('system','allowed_sites');
1869 $host = strtolower($h['host']);
1871 // always allow our own site
1873 if($host == strtolower($_SERVER['SERVER_NAME']))
1876 $fnmatch = function_exists('fnmatch');
1877 $allowed = explode(',',$str_allowed);
1879 if(count($allowed)) {
1880 foreach($allowed as $a) {
1881 $pat = strtolower(trim($a));
1882 if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
1891 // check if email address is allowed to register here.
1892 // Compare against our list (wildcards allowed).
1893 // Returns false if not allowed, true if allowed or if
1894 // allowed list is not configured.
1896 if(! function_exists('allowed_email')) {
1897 function allowed_email($email) {
1900 $domain = strtolower(substr($email,strpos($email,'@') + 1));
1904 $str_allowed = get_config('system','allowed_email');
1910 $fnmatch = function_exists('fnmatch');
1911 $allowed = explode(',',$str_allowed);
1913 if(count($allowed)) {
1914 foreach($allowed as $a) {
1915 $pat = strtolower(trim($a));
1916 if(($fnmatch && fnmatch($pat,$domain)) || ($pat == $domain)) {
1927 // wrapper to load a view template, checking for alternate
1928 // languages before falling back to the default
1930 // obsolete, deprecated.
1932 if(! function_exists('load_view_file')) {
1933 function load_view_file($s) {
1939 if(file_exists("$d/$lang/$b"))
1940 return file_get_contents("$d/$lang/$b");
1942 $theme = current_theme();
1944 if(file_exists("$d/theme/$theme/$b"))
1945 return file_get_contents("$d/theme/$theme/$b");
1947 return file_get_contents($s);
1950 if(! function_exists('get_intltext_template')) {
1951 function get_intltext_template($s) {
1957 if(file_exists("view/$lang/$s"))
1958 return file_get_contents("view/$lang/$s");
1959 elseif(file_exists("view/en/$s"))
1960 return file_get_contents("view/en/$s");
1962 return file_get_contents("view/$s");
1965 if(! function_exists('get_markup_template')) {
1966 function get_markup_template($s) {
1968 $theme = current_theme();
1970 if(file_exists("view/theme/$theme/$s"))
1971 return file_get_contents("view/theme/$theme/$s");
1973 return file_get_contents("view/$s");
1981 // for html,xml parsing - let's say you've got
1982 // an attribute foobar="class1 class2 class3"
1983 // and you want to find out if it contains 'class3'.
1984 // you can't use a normal sub string search because you
1985 // might match 'notclass3' and a regex to do the job is
1986 // possible but a bit complicated.
1987 // pass the attribute string as $attr and the attribute you
1988 // are looking for as $s - returns true if found, otherwise false
1990 if(! function_exists('attribute_contains')) {
1991 function attribute_contains($attr,$s) {
1992 $a = explode(' ', $attr);
1993 if(count($a) && in_array($s,$a))
1998 if(! function_exists('logger')) {
1999 function logger($msg,$level = 0) {
2000 $debugging = get_config('system','debugging');
2001 $loglevel = intval(get_config('system','loglevel'));
2002 $logfile = get_config('system','logfile');
2004 if((! $debugging) || (! $logfile) || ($level > $loglevel))
2007 @file_put_contents($logfile, datetime_convert() . ':' . session_id() . ' ' . $msg . "\n", FILE_APPEND);
2012 if(! function_exists('activity_match')) {
2013 function activity_match($haystack,$needle) {
2014 if(($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle,NAMESPACE_ACTIVITY_SCHEMA)))
2020 // Pull out all #hashtags and @person tags from $s;
2021 // We also get @person@domain.com - which would make
2022 // the regex quite complicated as tags can also
2023 // end a sentence. So we'll run through our results
2024 // and strip the period from any tags which end with one.
2025 // Returns array of tags found, or empty array.
2028 if(! function_exists('get_tags')) {
2029 function get_tags($s) {
2032 // ignore anything in a code block
2034 $s = preg_replace('/\[code\](.*?)\[\/code\]/sm','',$s);
2036 // Match full names against @tags including the space between first and last
2037 // We will look these up afterward to see if they are full names or not recognisable.
2039 if(preg_match_all('/(@[^ \x0D\x0A,:?]+ [^ \x0D\x0A,:?]+)([ \x0D\x0A,:?]|$)/',$s,$match)) {
2040 foreach($match[1] as $mtch) {
2041 if(strstr($mtch,"]")) {
2042 // we might be inside a bbcode color tag - leave it alone
2045 if(substr($mtch,-1,1) === '.')
2046 $ret[] = substr($mtch,0,-1);
2052 // Otherwise pull out single word tags. These can be @nickname, @first_last
2055 if(preg_match_all('/([@#][^ \x0D\x0A,:?]+)([ \x0D\x0A,:?]|$)/',$s,$match)) {
2056 foreach($match[1] as $mtch) {
2057 if(strstr($mtch,"]")) {
2058 // we might be inside a bbcode color tag - leave it alone
2061 if(substr($mtch,-1,1) === '.')
2062 $ret[] = substr($mtch,0,-1);
2071 // quick and dirty quoted_printable encoding
2073 if(! function_exists('qp')) {
2075 return str_replace ("%","=",rawurlencode($s));
2080 if(! function_exists('get_mentions')) {
2081 function get_mentions($item) {
2083 if(! strlen($item['tag']))
2086 $arr = explode(',',$item['tag']);
2087 foreach($arr as $x) {
2089 if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
2090 $o .= "\t\t" . '<link rel="mentioned" href="' . $matches[1] . '" />' . "\r\n";
2091 $o .= "\t\t" . '<link rel="ostatus:attention" href="' . $matches[1] . '" />' . "\r\n";
2097 if(! function_exists('contact_block')) {
2098 function contact_block() {
2102 $shown = get_pconfig($a->profile['uid'],'system','display_friend_count');
2106 if((! is_array($a->profile)) || ($a->profile['hide-friends']))
2108 $r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0",
2109 intval($a->profile['uid'])
2112 $total = intval($r[0]['total']);
2115 $o .= '<h4 class="contact-h4">' . t('No contacts') . '</h4>';
2118 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0 ORDER BY RAND() LIMIT %d",
2119 intval($a->profile['uid']),
2123 $o .= '<h4 class="contact-h4">' . sprintf( tt('%d Contact','%d Contacts', $total),$total) . '</h4><div id="contact-block">';
2124 foreach($r as $rr) {
2125 $o .= micropro($rr,true,'mpfriend');
2127 $o .= '</div><div id="contact-block-end"></div>';
2128 $o .= '<div id="viewcontacts"><a id="viewcontacts-link" href="viewcontacts/' . $a->profile['nickname'] . '">' . t('View Contacts') . '</a></div>';
2132 $arr = array('contacts' => $r, 'output' => $o);
2134 call_hooks('contact_block_end', $arr);
2139 if(! function_exists('micropro')) {
2140 function micropro($contact, $redirect = false, $class = '', $textmode = false) {
2143 $class = ' ' . $class;
2145 $url = $contact['url'];
2150 $redirect_url = $a->get_baseurl() . '/redir/' . $contact['id'];
2151 if(local_user() && ($contact['uid'] == local_user()) && ($contact['network'] === 'dfrn')) {
2152 $url = $redirect_url;
2153 $sparkle = ' sparkle';
2156 $click = ((x($contact,'click')) ? ' onclick="' . $contact['click'] . '" ' : '');
2160 return '<div class="contact-block-textdiv' . $class . '"><a class="contact-block-link' . $class . $sparkle
2161 . (($click) ? ' fakelink' : '') . '" '
2162 . (($url) ? ' href="' . $url . '"' : '') . $click
2163 . '" title="' . $contact['name'] . ' [' . $contact['url'] . ']" alt="' . $contact['name']
2164 . '" >'. $contact['name'] . '</a></div>' . "\r\n";
2167 return '<div class="contact-block-div' . $class . '"><a class="contact-block-link' . $class . $sparkle
2168 . (($click) ? ' fakelink' : '') . '" '
2169 . (($url) ? ' href="' . $url . '"' : '') . $click . ' ><img class="contact-block-img' . $class . $sparkle . '" src="'
2170 . $contact['micro'] . '" title="' . $contact['name'] . ' [' . $contact['url'] . ']" alt="' . $contact['name']
2171 . '" /></a></div>' . "\r\n";
2177 if(! function_exists('search')) {
2178 function search($s,$id='search-box',$url='/search') {
2180 $o = '<div id="' . $id . '">';
2181 $o .= '<form action="' . $a->get_baseurl() . $url . '" method="get" >';
2182 $o .= '<input type="text" name="search" id="search-text" value="' . $s .'" />';
2183 $o .= '<input type="submit" name="submit" id="search-submit" value="' . t('Search') . '" />';
2184 $o .= '</form></div>';
2188 if(! function_exists('valid_email')) {
2189 function valid_email($x){
2190 if(preg_match('/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/',$x))
2196 if(! function_exists('gravatar_img')) {
2197 function gravatar_img($email) {
2199 $opt = 'identicon'; // psuedo-random geometric pattern if not found
2201 $hash = md5(trim(strtolower($email)));
2203 $url = 'http://www.gravatar.com/avatar/' . $hash . '.jpg'
2204 . '?s=' . $size . '&d=' . $opt . '&r=' . $rating;
2206 logger('gravatar: ' . $email . ' ' . $url);
2210 if(! function_exists('aes_decrypt')) {
2211 function aes_decrypt($val,$ky)
2213 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2214 for($a=0;$a<strlen($ky);$a++)
2215 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2216 $mode = MCRYPT_MODE_ECB;
2217 $enc = MCRYPT_RIJNDAEL_128;
2218 $dec = @mcrypt_decrypt($enc, $key, $val, $mode, @mcrypt_create_iv( @mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM ) );
2219 return rtrim($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));
2223 if(! function_exists('aes_encrypt')) {
2224 function aes_encrypt($val,$ky)
2226 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2227 for($a=0;$a<strlen($ky);$a++)
2228 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
2229 $mode=MCRYPT_MODE_ECB;
2230 $enc=MCRYPT_RIJNDAEL_128;
2231 $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
2232 return mcrypt_encrypt($enc, $key, $val, $mode, mcrypt_create_iv( mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM));
2240 * Replace naked text hyperlink with HTML formatted hyperlink
2244 if(! function_exists('linkify')) {
2245 function linkify($s) {
2246 $s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%\$\!\+]*)/", ' <a href="$1" target="external-link">$1</a>', $s);
2256 * Replaces text emoticons with graphical images
2258 * @Parameter: string $s
2263 if(! function_exists('smilies')) {
2264 function smilies($s) {
2268 array( '<3', '</3', '<\\3', ':-)', ':)', ';-)', ':-(', ':(', ':-P', ':P', ':-"', ':-x', ':-X', ':-D', '8-|', '8-O'),
2270 '<img src="' . $a->get_baseurl() . '/images/smiley-heart.gif" alt="<3" />',
2271 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="</3" />',
2272 '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="<\\3" />',
2273 '<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":-)" />',
2274 '<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":)" />',
2275 '<img src="' . $a->get_baseurl() . '/images/smiley-wink.gif" alt=";-)" />',
2276 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":-(" />',
2277 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":(" />',
2278 '<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":-P" />',
2279 '<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":P" />',
2280 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-\"" />',
2281 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-x" />',
2282 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-X" />',
2283 '<img src="' . $a->get_baseurl() . '/images/smiley-laughing.gif" alt=":-D" />',
2284 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-|" />',
2285 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-O" />'
2292 * Function : profile_load
2294 * @parameter string $nickname
2295 * @parameter int $profile
2297 * Summary: Loads a profile into the page sidebar.
2298 * The function requires a writeable copy of the main App structure, and the nickname
2299 * of a registered local account.
2301 * If the viewer is an authenticated remote viewer, the profile displayed is the
2302 * one that has been configured for his/her viewing in the Contact manager.
2303 * Passing a non-zero profile ID can also allow a preview of a selected profile
2306 * Profile information is placed in the App structure for later retrieval.
2307 * Honours the owner's chosen theme for display.
2311 if(! function_exists('profile_load')) {
2312 function profile_load(&$a, $nickname, $profile = 0) {
2314 $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
2315 intval($_SESSION['visitor_id']));
2317 $profile = $r[0]['profile-id'];
2323 $profile_int = intval($profile);
2324 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2325 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2326 WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d LIMIT 1",
2328 intval($profile_int)
2332 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2333 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2334 WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 LIMIT 1",
2339 if(($r === false) || (! count($r))) {
2340 notice( t('No profile') . EOL );
2345 $a->profile = $r[0];
2348 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
2349 $_SESSION['theme'] = $a->profile['theme'];
2351 if(! (x($a->page,'aside')))
2352 $a->page['aside'] = '';
2354 $a->page['aside'] .= profile_sidebar($a->profile);
2355 $a->page['aside'] .= contact_block();
2363 * Function: profile_sidebar
2365 * Formats a profile for display in the sidebar.
2366 * It is very difficult to templatise the HTML completely
2367 * because of all the conditional logic.
2369 * @parameter: array $profile
2371 * Returns HTML string stuitable for sidebar inclusion
2372 * Exceptions: Returns empty string if passed $profile is wrong type or not populated
2377 if(! function_exists('profile_sidebar')) {
2378 function profile_sidebar($profile) {
2384 if((! is_array($profile)) && (! count($profile)))
2387 call_hooks('profile_sidebar_enter', $profile);
2389 $fullname = '<div class="fn">' . $profile['name'] . '</div>';
2391 $pdesc = '<div class="title">' . $profile['pdesc'] . '</div>';
2395 $photo = '<div id="profile-photo-wrapper"><img class="photo" src="' . $profile['photo'] . '" alt="' . $profile['name'] . '" /></div>';
2397 // don't show connect link to yourself
2399 $connect = (($profile['uid'] != local_user()) ? '<li><a id="dfrn-request-link" href="dfrn_request/' . $profile['nickname'] . '">' . t('Connect') . '</a></li>' : '');
2401 // don't show connect link to authenticated visitors either
2403 if((remote_user()) && ($_SESSION['visitor_visiting'] == $profile['uid']))
2406 if((x($profile,'address') == 1)
2407 || (x($profile,'locality') == 1)
2408 || (x($profile,'region') == 1)
2409 || (x($profile,'postal-code') == 1)
2410 || (x($profile,'country-name') == 1))
2414 $location .= '<div class="location"><span class="location-label">' . t('Location:') . '</span> <div class="adr">';
2415 $location .= ((x($profile,'address') == 1) ? '<div class="street-address">' . $profile['address'] . '</div>' : '');
2416 $location .= (((x($profile,'locality') == 1) || (x($profile,'region') == 1) || (x($profile,'postal-code') == 1))
2417 ? '<span class="city-state-zip"><span class="locality">' . $profile['locality'] . '</span>'
2418 . ((x($profile['locality']) == 1) ? t(', ') : '')
2419 . '<span class="region">' . $profile['region'] . '</span>'
2420 . ' <span class="postal-code">' . $profile['postal-code'] . '</span></span>' : '');
2421 $location .= ((x($profile,'country-name') == 1) ? ' <span class="country-name">' . $profile['country-name'] . '</span>' : '');
2422 $location .= '</div></div><div class="profile-clear"></div>';
2426 $gender = ((x($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>' : '');
2428 $pubkey = ((x($profile,'pubkey') == 1) ? '<div class="key" style="display:none;">' . $profile['pubkey'] . '</div>' : '');
2430 $marital = ((x($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>' : '');
2432 $homepage = ((x($profile,'homepage') == 1) ? '<div class="homepage"><span class="homepage-label">' . t('Homepage:') . ' </span><span class="homepage-url">' . linkify($profile['homepage']) . '</span></div><div class="profile-clear"></div>' : '');
2434 if($profile['hidewall'] && (! local_user()) && (! remote_user())) {
2435 $location = $gender = $marital = $homepage = '';
2438 $tpl = get_markup_template('profile_vcard.tpl');
2440 $o .= replace_macros($tpl, array(
2441 '$fullname' => $fullname,
2445 '$connect' => $connect,
2446 '$location' => $location,
2447 '$gender' => $gender,
2448 '$pubkey' => $pubkey,
2449 '$marital' => $marital,
2450 '$homepage' => $homepage
2454 $arr = array('profile' => &$profile, 'entry' => &$o);
2456 call_hooks('profile_sidebar', $arr);
2462 if(! function_exists('register_hook')) {
2463 function register_hook($hook,$file,$function) {
2465 $r = q("SELECT * FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2473 $r = q("INSERT INTO `hook` (`hook`, `file`, `function`) VALUES ( '%s', '%s', '%s' ) ",
2481 if(! function_exists('unregister_hook')) {
2482 function unregister_hook($hook,$file,$function) {
2484 $r = q("DELETE FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2493 if(! function_exists('load_hooks')) {
2494 function load_hooks() {
2496 $a->hooks = array();
2497 $r = q("SELECT * FROM `hook` WHERE 1");
2499 foreach($r as $rr) {
2500 $a->hooks[] = array($rr['hook'], $rr['file'], $rr['function']);
2506 if(! function_exists('call_hooks')) {
2507 function call_hooks($name, &$data = null) {
2510 if(count($a->hooks)) {
2511 foreach($a->hooks as $hook) {
2512 if($hook[HOOK_HOOK] === $name) {
2513 @include_once($hook[HOOK_FILE]);
2514 if(function_exists($hook[HOOK_FUNCTION])) {
2515 $func = $hook[HOOK_FUNCTION];
2524 if(! function_exists('day_translate')) {
2525 function day_translate($s) {
2526 $ret = str_replace(array('Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'),
2527 array( t('Monday'), t('Tuesday'), t('Wednesday'), t('Thursday'), t('Friday'), t('Saturday'), t('Sunday')),
2530 $ret = str_replace(array('January','February','March','April','May','June','July','August','September','October','November','December'),
2531 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')),
2537 if(! function_exists('get_birthdays')) {
2538 function get_birthdays() {
2546 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
2548 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
2549 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
2550 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
2551 ORDER BY `start` DESC ",
2552 intval(local_user()),
2553 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
2554 dbesc(datetime_convert('UTC','UTC','now'))
2557 if($r && count($r)) {
2560 if(strlen($rr['name']))
2564 $o .= '<div id="birthday-notice" class="birthday-notice fakelink" onclick=openClose(\'birthday-wrapper\'); >' . t('Birthday Reminders') . ' ' . '(' . $total . ')' . '</div>';
2565 $o .= '<div id="birthday-wrapper" style="display: none;" ><div id="birthday-title">' . t('Birthdays this week:') . '</div>';
2566 $o .= '<div id="birthday-adjust">' . t("\x28Adjusted for local time\x29") . '</div>';
2567 $o .= '<div id="birthday-title-end"></div>';
2569 foreach($r as $rr) {
2570 if(! strlen($rr['name']))
2572 $now = strtotime('now');
2573 $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
2575 $o .= '<div class="birthday-list" id="birthday-' . $rr['eid'] . '"><a class="sparkle" href="'
2576 . $a->get_baseurl() . '/redir/' . $rr['cid'] . '">' . $rr['name'] . '</a> '
2577 . day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $bd_format)) . (($today) ? ' ' . t('[today]') : '')
2580 $o .= '</div></div>';
2587 if(! function_exists('normalise_link')) {
2588 function normalise_link($url) {
2589 $ret = str_replace(array('https:','//www.'), array('http:','//'), $url);
2590 return(rtrim($ret,'/'));
2595 * Compare two URLs to see if they are the same, but ignore
2596 * slight but hopefully insignificant differences such as if one
2597 * is https and the other isn't, or if one is www.something and
2598 * the other isn't - and also ignore case differences.
2600 * Return true if the URLs match, otherwise false.
2604 if(! function_exists('link_compare')) {
2605 function link_compare($a,$b) {
2606 if(strcasecmp(normalise_link($a),normalise_link($b)) === 0)
2612 if(! function_exists('prepare_body')) {
2613 function prepare_body($item,$attach = false) {
2615 $s = prepare_text($item['body']);
2619 $arr = explode(',',$item['attach']);
2621 $s .= '<div class="body-attach">';
2622 foreach($arr as $r) {
2625 $cnt = preg_match('|\[attach\]href=\"(.*?)\" size=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
2627 $icontype = strtolower(substr($matches[3],0,strpos($matches[3],'/')));
2633 $icon = '<div class="attachtype type-' . $icontype . '"></div>';
2636 $icon = '<div class="attachtype type-unkn"></div>';
2639 $title = ((strlen(trim($matches[4]))) ? escape_tags(trim($matches[4])) : escape_tags($matches[1]));
2640 $title .= ' ' . $matches[2] . ' ' . t('bytes');
2642 $s .= '<a href="' . strip_tags($matches[1]) . '" title="' . $title . '" class="attachlink" target="external-link" >' . $icon . '</a>';
2645 $s .= '<div class="clear"></div></div>';
2650 if(! function_exists('prepare_text')) {
2651 function prepare_text($text) {
2653 require_once('include/bbcode.php');
2655 $s = smilies(bbcode($text));
2662 * Wrap calls to proc_close(proc_open()) and call hook
2663 * so plugins can take part in process :)
2666 * $cmd program to run
2667 * next args are passed as $cmd command line
2669 * e.g.: proc_run("ls","-la","/tmp");
2671 * $cmd and string args are surrounded with ""
2674 if(! function_exists('proc_run')) {
2675 function proc_run($cmd){
2679 $args = func_get_args();
2680 call_hooks("proc_run", $args);
2682 if(count($args) && $args[0] === 'php')
2683 $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
2685 foreach ($args as $arg){
2686 $arg = escapeshellarg($arg);
2688 $cmdline = implode($args," ");
2689 proc_close(proc_open($cmdline." &",array(),$foo));
2692 if(! function_exists('current_theme')) {
2693 function current_theme(){
2694 $app_base_themes = array('duepuntozero', 'loozah');
2698 $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
2699 $theme_name = ((is_array($_SESSION) && x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
2701 if($theme_name && file_exists('view/theme/' . $theme_name . '/style.css'))
2702 return($theme_name);
2704 foreach($app_base_themes as $t) {
2705 if(file_exists('view/theme/' . $t . '/style.css'))
2709 $fallback = glob('view/theme/*/style.css');
2710 if(count($fallback))
2711 return (str_replace('view/theme/','', str_replace("/style.css","",$fallback[0])));
2716 * Return full URL to theme which is currently in effect.
2717 * Provide a sane default if nothing is chosen or the specified theme does not exist.
2719 if(! function_exists('current_theme_url')) {
2720 function current_theme_url() {
2722 $t = current_theme();
2723 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
2726 if(! function_exists('feed_birthday')) {
2727 function feed_birthday($uid,$tz) {
2731 * Determine the next birthday, but only if the birthday is published
2732 * in the default profile. We _could_ also look for a private profile that the
2733 * recipient can see, but somebody could get mad at us if they start getting
2734 * public birthday greetings when they haven't made this info public.
2736 * Assuming we are able to publish this info, we are then going to convert
2737 * the start time from the owner's timezone to UTC.
2739 * This will potentially solve the problem found with some social networks
2740 * where birthdays are converted to the viewer's timezone and salutations from
2741 * elsewhere in the world show up on the wrong day. We will convert it to the
2742 * viewer's timezone also, but first we are going to convert it from the birthday
2743 * person's timezone to GMT - so the viewer may find the birthday starting at
2744 * 6:00PM the day before, but that will correspond to midnight to the birthday person.
2750 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
2754 if($p && count($p)) {
2755 $tmp_dob = substr($p[0]['dob'],5);
2756 if(intval($tmp_dob)) {
2757 $y = datetime_convert($tz,$tz,'now','Y');
2758 $bd = $y . '-' . $tmp_dob . ' 00:00';
2759 $t_dob = strtotime($bd);
2760 $now = strtotime(datetime_convert($tz,$tz,'now'));
2762 $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
2763 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
2771 * return atom link elements for all of our hubs
2774 if(! function_exists('feed_hublinks')) {
2775 function feed_hublinks() {
2777 $hub = get_config('system','huburl');
2781 $hubs = explode(',', $hub);
2783 foreach($hubs as $h) {
2787 $hubxml .= '<link rel="hub" href="' . xmlify($h) . '" />' . "\n" ;
2794 /* return atom link elements for salmon endpoints */
2796 if(! function_exists('feed_salmonlinks')) {
2797 function feed_salmonlinks($nick) {
2801 $salmon = '<link rel="salmon" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2803 // old style links that status.net still needed as of 12/2010
2805 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-replies" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2806 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-mention" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2810 if(! function_exists('get_plink')) {
2811 function get_plink($item) {
2813 $plink = (((x($item,'plink')) && (! $item['private'])) ? '<div class="wall-item-links-wrapper"><a href="'
2814 . $item['plink'] . '" title="' . t('link to source') . '" target="external-link" class="icon remote-link"></a></div>' : '');
2818 if(! function_exists('unamp')) {
2819 function unamp($s) {
2820 return str_replace('&', '&', $s);
2826 if(! function_exists('lang_selector')) {
2827 function lang_selector() {
2829 $o = '<div id="lang-select-icon" class="icon language" title="' . t('Select an alternate language') . '" onclick="openClose(\'language-selector\');" ></div>';
2830 $o .= '<div id="language-selector" style="display: none;" >';
2831 $o .= '<form action="" method="post" ><select name="system_language" onchange="this.form.submit();" >';
2832 $langs = glob('view/*/strings.php');
2833 if(is_array($langs) && count($langs)) {
2834 if(! in_array('view/en/strings.php',$langs))
2835 $langs[] = 'view/en/';
2837 foreach($langs as $l) {
2839 $ll = substr($ll,0,strrpos($ll,'/'));
2840 $selected = (($ll === $lang) ? ' selected="selected" ' : '');
2841 $o .= '<option value="' . $ll . '"' . $selected . '>' . $ll . '</option>';
2844 $o .= '</select></form></div>';
2849 if(! function_exists('parse_xml_string')) {
2850 function parse_xml_string($s,$strict = true) {
2852 if(! strstr($s,'<?xml'))
2854 $s2 = substr($s,strpos($s,'<?xml'));
2858 libxml_use_internal_errors(true);
2860 $x = @simplexml_load_string($s2);
2862 logger('libxml: parse: error: ' . $s2, LOGGER_DATA);
2863 foreach(libxml_get_errors() as $err)
2864 logger('libxml: parse: ' . $err->code." at ".$err->line.":".$err->column." : ".$err->message, LOGGER_DATA);
2865 libxml_clear_errors();
2870 if(! function_exists('is_site_admin')) {
2871 function is_site_admin() {
2873 if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
2879 * parse plugin comment in search of plugin infos.
2883 * * Description: A plugin which plugs in
2885 * * Author: John <profile url>
2886 * * Author: Jane <email>
2890 if (! function_exists('get_plugin_info')){
2891 function get_plugin_info($plugin){
2892 if (!is_file("addon/$plugin/$plugin.php")) return false;
2894 $f = file_get_contents("addon/$plugin/$plugin.php");
2895 $r = preg_match("|/\*.*\*/|msU", $f, $m);
2899 'description' => "",
2900 'author' => array(),
2905 $ll = explode("\n", $m[0]);
2906 foreach( $ll as $l ) {
2907 $l = trim($l,"\t\n\r */");
2909 list($k,$v) = array_map("trim", explode(":",$l,2));
2912 $r=preg_match("|([^<]+)<([^>]+)>|", $v, $m);
2914 $info['author'][] = array('name'=>$m[1], 'link'=>$m[2]);
2916 $info['author'][] = array('name'=>$v);
2919 if (array_key_exists($k,$info)){
2931 if(! function_exists('return_bytes')) {
2932 function return_bytes ($size_str) {
2933 switch (substr ($size_str, -1))
2935 case 'M': case 'm': return (int)$size_str * 1048576;
2936 case 'K': case 'k': return (int)$size_str * 1024;
2937 case 'G': case 'g': return (int)$size_str * 1073741824;
2938 default: return $size_str;