5 define ( 'BUILD_ID', 1038 );
6 define ( 'FRIENDIKA_VERSION', '2.10.0906' );
7 define ( 'DFRN_PROTOCOL_VERSION', '2.1' );
9 define ( 'EOL', "<br />\r\n" );
10 define ( 'ATOM_TIME', 'Y-m-d\TH:i:s\Z' );
11 define ( 'DOWN_ARROW', '⇩' );
15 * SSL redirection policies
18 define ( 'SSL_POLICY_NONE', 0 );
19 define ( 'SSL_POLICY_FULL', 1 );
20 define ( 'SSL_POLICY_SELFSIGN', 2 );
27 define ( 'LOGGER_NORMAL', 0 );
28 define ( 'LOGGER_TRACE', 1 );
29 define ( 'LOGGER_DEBUG', 2 );
30 define ( 'LOGGER_DATA', 3 );
31 define ( 'LOGGER_ALL', 4 );
34 * registration policies
37 define ( 'REGISTER_CLOSED', 0 );
38 define ( 'REGISTER_APPROVE', 1 );
39 define ( 'REGISTER_OPEN', 2 );
45 define ( 'REL_VIP', 1);
46 define ( 'REL_FAN', 2);
47 define ( 'REL_BUD', 3);
53 define ( 'HOOK_HOOK', 0);
54 define ( 'HOOK_FILE', 1);
55 define ( 'HOOK_FUNCTION', 2);
61 * PAGE_NORMAL is a typical personal profile account
62 * PAGE_SOAPBOX automatically approves all friend requests as REL_FAN, (readonly)
63 * PAGE_COMMUNITY automatically approves all friend requests as REL_FAN, but with
64 * write access to wall and comments (no email and not included in page owner's ACL lists)
65 * PAGE_FREELOVE automatically approves all friend requests as full friends (REL_BUD).
69 define ( 'PAGE_NORMAL', 0 );
70 define ( 'PAGE_SOAPBOX', 1 );
71 define ( 'PAGE_COMMUNITY', 2 );
72 define ( 'PAGE_FREELOVE', 3 );
75 * Maximum number of "people who like (or don't like) this" that we will list by name
78 define ( 'MAX_LIKERS', 75);
81 * email notification options
84 define ( 'NOTIFY_INTRO', 0x0001 );
85 define ( 'NOTIFY_CONFIRM', 0x0002 );
86 define ( 'NOTIFY_WALL', 0x0004 );
87 define ( 'NOTIFY_COMMENT', 0x0008 );
88 define ( 'NOTIFY_MAIL', 0x0010 );
91 * various namespaces we may need to parse
94 define ( 'NAMESPACE_DFRN' , 'http://purl.org/macgirvin/dfrn/1.0' );
95 define ( 'NAMESPACE_THREAD' , 'http://purl.org/syndication/thread/1.0' );
96 define ( 'NAMESPACE_TOMB' , 'http://purl.org/atompub/tombstones/1.0' );
97 define ( 'NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/' );
98 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
99 define ( 'NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia' );
100 define ( 'NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env' );
101 define ( 'NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe' );
102 define ( 'NAMESPACE_GEORSS', 'http://www.georss.org/georss' );
103 define ( 'NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0' );
104 define ( 'NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from' );
107 * activity stream defines
110 define ( 'ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like' );
111 define ( 'ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike' );
112 define ( 'ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart' );
114 define ( 'ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
115 define ( 'ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
116 define ( 'ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
117 define ( 'ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post' );
118 define ( 'ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update' );
119 define ( 'ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
121 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
122 define ( 'ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note' );
123 define ( 'ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person' );
124 define ( 'ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
125 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
126 define ( 'ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
129 * item weight for query ordering
132 define ( 'GRAVITY_PARENT', 0);
133 define ( 'GRAVITY_LIKE', 3);
134 define ( 'GRAVITY_COMMENT', 6);
138 * Reverse the effect of magic_quotes_gpc if it is enabled.
139 * Please disable magic_quotes_gpc so we don't have to do this.
140 * See http://php.net/manual/en/security.magicquotes.disabling.php
144 if (get_magic_quotes_gpc()) {
145 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
146 while (list($key, $val) = each($process)) {
147 foreach ($val as $k => $v) {
148 unset($process[$key][$k]);
150 $process[$key][stripslashes($k)] = $v;
151 $process[] = &$process[$key][stripslashes($k)];
153 $process[$key][stripslashes($k)] = stripslashes($v);
165 * Our main application structure for the life of this page
166 * Primarily deals with the URL that got us here
167 * and tries to make some sense of it, and
168 * stores our page contents and config storage
169 * and anything else that might need to be passed around
170 * before we spit the page out.
174 if(! class_exists('App')) {
177 public $module_loaded = false;
178 public $query_string;
187 public $error = false;
197 public $interactive = true;
206 private $curl_headers;
208 function __construct() {
210 $this->config = array();
211 $this->page = array();
212 $this->pager= array();
214 $this->query_string = '';
216 $this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'])) ? 'https' : 'http' );
218 if(x($_SERVER,'SERVER_NAME')) {
219 $this->hostname = $_SERVER['SERVER_NAME'];
222 * Figure out if we are running at the top of a domain
223 * or in a sub-directory and adjust accordingly
226 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
227 if(isset($path) && strlen($path) && ($path != $this->path))
231 set_include_path("include/$this->hostname" . PATH_SEPARATOR . 'include' . PATH_SEPARATOR . '.' );
233 if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=")
234 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
236 $this->cmd = trim($_GET['q'],'/\\');
242 * Break the URL path into C style argc/argv style arguments for our
243 * modules. Given "http://example.com/module/arg1/arg2", $this->argc
244 * will be 3 (integer) and $this->argv will contain:
250 * There will always be one argument. If provided a naked domain
251 * URL, $this->argv[0] is set to "home".
255 $this->argv = explode('/',$this->cmd);
256 $this->argc = count($this->argv);
257 if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
258 $this->module = $this->argv[0];
261 $this->module = 'home';
265 * Special handling for the webfinger/lrdd host XRD file
266 * Just spit out the contents and exit.
269 if($this->cmd === '.well-known/host-meta')
270 require_once('include/hostxrd.php');
274 * See if there is any page number information, and initialise
278 $this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1);
279 $this->pager['itemspage'] = 50;
280 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
281 $this->pager['total'] = 0;
284 function get_baseurl($ssl = false) {
286 $scheme = $this->scheme;
288 if(x($this->config,'ssl_policy')) {
289 if(($ssl) || ($this->config['ssl_policy'] == SSL_POLICY_FULL))
291 if(($this->config['ssl_policy'] == SSL_POLICY_SELFSIGN) && (local_user() || x($_POST,'auth-params')))
295 $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
296 return $this->baseurl;
299 function set_baseurl($url) {
300 $parsed = parse_url($url);
302 $this->baseurl = $url;
305 $this->scheme = $parsed['scheme'];
307 $this->hostname = $parsed['host'];
308 if(x($parsed,'port'))
309 $this->hostname .= ':' . $parsed['port'];
310 if(x($parsed,'path'))
311 $this->path = trim($parsed['path'],'\\/');
316 function get_hostname() {
317 return $this->hostname;
320 function set_hostname($h) {
321 $this->hostname = $h;
324 function set_path($p) {
325 $this->path = trim(trim($p),'/');
328 function get_path() {
332 function set_pager_total($n) {
333 $this->pager['total'] = intval($n);
336 function set_pager_itemspage($n) {
337 $this->pager['itemspage'] = intval($n);
338 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
342 function init_pagehead() {
343 $this->page['title'] = $this->config['sitename'];
344 $tpl = load_view_file("view/head.tpl");
345 $this->page['htmlhead'] = replace_macros($tpl,array(
346 '$baseurl' => $this->get_baseurl() . '/',
347 '$generator' => 'Friendika' . ' ' . FRIENDIKA_VERSION
351 function set_curl_code($code) {
352 $this->curl_code = $code;
355 function get_curl_code() {
356 return $this->curl_code;
359 function set_curl_headers($headers) {
360 $this->curl_headers = $headers;
363 function get_curl_headers() {
364 return $this->curl_headers;
370 // retrieve the App structure
371 // useful in functions which require it but don't get it passed to them
373 if(! function_exists('get_app')) {
380 // Multi-purpose function to check variable state.
381 // Usage: x($var) or $x($array,'key')
382 // returns false if variable/key is not set
383 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
384 // e.g. x('') or x(0) returns 0;
386 if(! function_exists('x')) {
387 function x($s,$k = NULL) {
389 if((is_array($s)) && (array_key_exists($k,$s))) {
407 // called from db initialisation if db is dead.
409 if(! function_exists('system_unavailable')) {
410 function system_unavailable() {
411 include('system_unavailable.php');
415 // Primarily involved with database upgrade, but also sets the
416 // base url for use in cmdline programs which don't have
417 // $_SERVER variables, and synchronising the state of installed plugins.
420 if(! function_exists('check_config')) {
421 function check_config(&$a) {
424 load_config('system');
426 if(! x($_SERVER,'SERVER_NAME'))
429 $build = get_config('system','build');
431 $build = set_config('system','build',BUILD_ID);
433 $url = get_config('system','url');
435 $url = set_config('system','url',$a->get_baseurl());
437 if($build != BUILD_ID) {
438 $stored = intval($build);
439 $current = intval(BUILD_ID);
440 if(($stored < $current) && file_exists('update.php')) {
441 // We're reporting a different version than what is currently installed.
442 // Run any existing update scripts to bring the database up to current.
444 require_once('update.php');
445 for($x = $stored; $x < $current; $x ++) {
446 if(function_exists('update_' . $x)) {
447 $func = 'update_' . $x;
451 set_config('system','build', BUILD_ID);
457 * Synchronise plugins:
459 * $a->config['system']['addon'] contains a comma-separated list of names
460 * of plugins/addons which are used on this system.
461 * Go through the database list of already installed addons, and if we have
462 * an entry, but it isn't in the config list, call the uninstall procedure
463 * and mark it uninstalled in the database (for now we'll remove it).
464 * Then go through the config list and if we have a plugin that isn't installed,
465 * call the install procedure and add it to the database.
469 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
473 $installed = array();
475 $plugins = get_config('system','addon');
476 $plugins_arr = array();
479 $plugins_arr = explode(',',str_replace(' ', '',$plugins));
481 $a->plugins = $plugins_arr;
483 $installed_arr = array();
485 if(count($installed)) {
486 foreach($installed as $i) {
487 if(! in_array($i['name'],$plugins_arr)) {
488 logger("Addons: uninstalling " . $i['name']);
489 q("DELETE FROM `addon` WHERE `id` = %d LIMIT 1",
493 @include_once('addon/' . $i['name'] . '/' . $i['name'] . '.php');
494 if(function_exists($i['name'] . '_uninstall')) {
495 $func = $i['name'] . '_uninstall';
500 $installed_arr[] = $i['name'];
504 if(count($plugins_arr)) {
505 foreach($plugins_arr as $p) {
506 if(! in_array($p,$installed_arr)) {
507 logger("Addons: installing " . $p);
508 @include_once('addon/' . $p . '/' . $p . '.php');
509 if(function_exists($p . '_install')) {
510 $func = $p . '_install';
512 $r = q("INSERT INTO `addon` (`name`, `installed`) VALUES ( '%s', 1 ) ",
524 // This is our template processor.
525 // $s is the string requiring macro substitution.
526 // $r is an array of key value pairs (search => replace)
527 // returns substituted string.
528 // WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other.
529 // For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing,
530 // depending on the order in which they were declared in the array.
532 if(! function_exists('replace_macros')) {
533 function replace_macros($s,$r) {
538 if(is_array($r) && count($r)) {
539 foreach ($r as $k => $v ) {
544 return str_replace($search,$replace,$s);
548 // load string translation table for alternate language
550 if(! function_exists('load_translation_table')) {
551 function load_translation_table($lang) {
554 if(file_exists("view/$lang/strings.php"))
555 include("view/$lang/strings.php");
558 // translate string if translation exists
560 if(! function_exists('t')) {
565 if(x($a->strings,$s))
566 return $a->strings[$s];
570 // curl wrapper. If binary flag is true, return binary
573 if(! function_exists('fetch_url')) {
574 function fetch_url($url,$binary = false, &$redirects = 0) {
578 $ch = curl_init($url);
579 if(($redirects > 8) || (! $ch))
582 curl_setopt($ch, CURLOPT_HEADER, true);
583 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
586 $curl_time = intval(get_config('system','curl_timeout'));
587 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
589 // by default we will allow self-signed certs
590 // but you can override this
592 $check_cert = get_config('system','verifyssl');
593 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
595 $prx = get_config('system','proxy');
597 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
598 curl_setopt($ch, CURLOPT_PROXY, $prx);
599 $prxusr = get_config('system','proxyuser');
601 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
604 curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
606 $a->set_curl_code(0);
608 // don't let curl abort the entire application
609 // if it throws any errors.
611 $s = @curl_exec($ch);
613 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
614 $header = substr($s,0,strpos($s,"\r\n\r\n"));
615 if(stristr($header,'100') && (strlen($header) < 30)) {
616 // 100 Continue has two headers, get the real one
617 $s = substr($s,strlen($header)+4);
618 $header = substr($s,0,strpos($s,"\r\n\r\n"));
620 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
622 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
623 $url = trim(array_pop($matches));
624 $url_parsed = parse_url($url);
625 if (isset($url_parsed)) {
627 return fetch_url($url,$binary,$redirects);
630 $a->set_curl_code($http_code);
632 $body = substr($s,strlen($header)+4);
634 /* one more try to make sure there are no more headers */
636 if(strpos($body,'HTTP/') === 0) {
637 $header = substr($body,0,strpos($body,"\r\n\r\n"));
638 $body = substr($body,strlen($header)+4);
641 $a->set_curl_headers($header);
647 // post request to $url. $params is an array of post variables.
649 if(! function_exists('post_url')) {
650 function post_url($url,$params, $headers = null, &$redirects = 0) {
652 $ch = curl_init($url);
653 if(($redirects > 8) || (! $ch))
656 curl_setopt($ch, CURLOPT_HEADER, true);
657 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
658 curl_setopt($ch, CURLOPT_POST,1);
659 curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
661 $curl_time = intval(get_config('system','curl_timeout'));
662 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
664 if(is_array($headers))
665 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
667 $check_cert = get_config('system','verifyssl');
668 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
669 $prx = get_config('system','proxy');
671 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
672 curl_setopt($ch, CURLOPT_PROXY, $prx);
673 $prxusr = get_config('system','proxyuser');
675 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
678 $a->set_curl_code(0);
680 // don't let curl abort the entire application
681 // if it throws any errors.
683 $s = @curl_exec($ch);
685 $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
686 $header = substr($s,0,strpos($s,"\r\n\r\n"));
687 if(stristr($header,'100') && (strlen($header) < 30)) {
688 // 100 Continue has two headers, get the real one
689 $s = substr($s,strlen($header)+4);
690 $header = substr($s,0,strpos($s,"\r\n\r\n"));
692 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
694 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
695 $url = trim(array_pop($matches));
696 $url_parsed = parse_url($url);
697 if (isset($url_parsed)) {
699 return post_url($url,$binary,$headers,$redirects);
702 $a->set_curl_code($http_code);
703 $body = substr($s,strlen($header)+4);
705 /* one more try to make sure there are no more headers */
707 if(strpos($body,'HTTP/') === 0) {
708 $header = substr($body,0,strpos($body,"\r\n\r\n"));
709 $body = substr($body,strlen($header)+4);
712 $a->set_curl_headers($header);
718 // random hash, 64 chars
720 if(! function_exists('random_string')) {
721 function random_string() {
722 return(hash('sha256',uniqid(rand(),true)));
726 * This is our primary input filter.
728 * The high bit hack only involved some old IE browser, forget which (IE5/Mac?)
729 * that had an XSS attack vector due to stripping the high-bit on an 8-bit character
730 * after cleansing, and angle chars with the high bit set could get through as markup.
732 * This is now disabled because it was interfering with some legitimate unicode sequences
733 * and hopefully there aren't a lot of those browsers left.
735 * Use this on any text input where angle chars are not valid or permitted
736 * They will be replaced with safer brackets. This may be filtered further
737 * if these are not allowed either.
741 if(! function_exists('notags')) {
742 function notags($string) {
744 return(str_replace(array("<",">"), array('[',']'), $string));
746 // High-bit filter no longer used
747 // return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string));
750 // use this on "body" or "content" input where angle chars shouldn't be removed,
751 // and allow them to be safely displayed.
753 if(! function_exists('escape_tags')) {
754 function escape_tags($string) {
756 return(htmlspecialchars($string));
759 // wrapper for adding a login box. If $register == true provide a registration
760 // link. This will most always depend on the value of $a->config['register_policy'].
761 // returns the complete html for inserting into the page
763 if(! function_exists('login')) {
764 function login($register = false) {
766 $register_html = (($register) ? load_view_file("view/register-link.tpl") : "");
768 $noid = get_config('system','no_openid');
770 $classname = 'no-openid';
771 $namelabel = t('Nickname or Email address: ');
772 $passlabel = t('Password: ');
776 $classname = 'openid';
777 $namelabel = t('Nickname/Email/OpenID: ');
778 $passlabel = t("Password \x28if not OpenID\x29: ");
781 $lostpass = t('Forgot your password?');
782 $lostlink = t('Password Reset');
785 $tpl = load_view_file("view/logout.tpl");
788 $tpl = load_view_file("view/login.tpl");
792 $o = replace_macros($tpl,array(
793 '$register_html' => $register_html,
794 '$classname' => $classname,
795 '$namelabel' => $namelabel,
796 '$passlabel' => $passlabel,
798 '$lostpass' => $lostpass,
799 '$lostlink' => $lostlink
805 // generate a string that's random, but usually pronounceable.
806 // used to generate initial passwords
808 if(! function_exists('autoname')) {
809 function autoname($len) {
811 $vowels = array('a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u');
812 if(mt_rand(0,5) == 4)
830 's','sc','sh','sm','sp','st',
838 $midcons = array('ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
839 'nd','ng','nk','nt','rn','rp','rt');
841 $noend = array('bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
842 'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh');
844 $start = mt_rand(0,2);
852 for ($x = 0; $x < $len; $x ++) {
853 $r = mt_rand(0,count($table) - 1);
856 if($table == $vowels)
857 $table = array_merge($cons,$midcons);
863 $word = substr($word,0,$len);
865 foreach($noend as $noe) {
866 if((strlen($word) > 2) && (substr($word,-2) == $noe)) {
867 $word = substr($word,0,-1);
871 if(substr($word,-1) == 'q')
872 $word = substr($word,0,-1);
876 // Used to end the current process, after saving session state.
878 if(! function_exists('killme')) {
880 session_write_close();
884 // redirect to another URL and terminate this process.
886 if(! function_exists('goaway')) {
887 function goaway($s) {
888 header("Location: $s");
892 // Generic XML return
893 // Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
894 // of $st and an optional text <message> of $message and terminates the current process.
896 if(! function_exists('xml_status')) {
897 function xml_status($st, $message = '') {
899 $xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
902 logger('xml_status returning non_zero: ' . $st . " message=" . $message);
904 header( "Content-type: text/xml" );
905 echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
906 echo "<result>\r\n\t<status>$st</status>\r\n$xml_message</result>\r\n";
910 // Returns the uid of locally logged in user or false.
912 if(! function_exists('local_user')) {
913 function local_user() {
914 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
915 return intval($_SESSION['uid']);
919 // Returns contact id of authenticated site visitor or false
921 if(! function_exists('remote_user')) {
922 function remote_user() {
923 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
924 return intval($_SESSION['visitor_id']);
928 // contents of $s are displayed prominently on the page the next time
929 // a page is loaded. Usually used for errors or alerts.
931 if(! function_exists('notice')) {
932 function notice($s) {
935 $_SESSION['sysmsg'] .= $s;
938 // wrapper around config to limit the text length of an incoming message
940 if(! function_exists('get_max_import_size')) {
941 function get_max_import_size() {
943 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
947 // escape text ($str) for XML transport
948 // returns escaped text.
950 if(! function_exists('xmlify')) {
951 function xmlify($str) {
954 for($x = 0; $x < strlen($str); $x ++) {
984 $buffer = trim($buffer);
989 // pass xml escaped text ($s), returns unescaped text
991 if(! function_exists('unxmlify')) {
992 function unxmlify($s) {
993 $ret = str_replace('&','&', $s);
994 $ret = str_replace(array('<','>','"','''),array('<','>','"',"'"),$ret);
998 // convenience wrapper, reverse the operation "bin2hex"
1000 if(! function_exists('hex2bin')) {
1001 function hex2bin($s) {
1002 if(! ctype_xdigit($s)) {
1003 logger('hex2bin: illegal input: ' . print_r(debug_backtrace(), true));
1007 return(pack("H*",$s));
1010 // Automatic pagination.
1011 // To use, get the count of total items.
1012 // Then call $a->set_pager_total($number_items);
1013 // Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page
1014 // Then call paginate($a) after the end of the display loop to insert the pager block on the page
1015 // (assuming there are enough items to paginate).
1016 // When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage']
1017 // will limit the results to the correct items for the current page.
1018 // The actual page handling is then accomplished at the application layer.
1020 if(! function_exists('paginate')) {
1021 function paginate(&$a) {
1023 $stripped = preg_replace('/(&page=[0-9]*)/','',$a->query_string);
1024 $stripped = str_replace('q=','',$stripped);
1025 $stripped = trim($stripped,'/');
1026 $url = $a->get_baseurl() . '/' . $stripped;
1029 if($a->pager['total'] > $a->pager['itemspage']) {
1030 $o .= '<div class="pager">';
1031 if($a->pager['page'] != 1)
1032 $o .= '<span class="pager_prev">'."<a href=\"$url".'&page='.($a->pager['page'] - 1).'">' . t('prev') . '</a></span> ';
1034 $o .= "<span class=\"pager_first\"><a href=\"$url"."&page=1\">" . t('first') . "</a></span> ";
1036 $numpages = $a->pager['total'] / $a->pager['itemspage'];
1039 $numstop = $numpages;
1041 if($numpages > 14) {
1042 $numstart = (($pagenum > 7) ? ($pagenum - 7) : 1);
1043 $numstop = (($pagenum > ($numpages - 7)) ? $numpages : ($numstart + 14));
1046 for($i = $numstart; $i <= $numstop; $i++){
1047 if($i == $a->pager['page'])
1048 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1050 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1054 if(($a->pager['total'] % $a->pager['itemspage']) != 0) {
1055 if($i == $a->pager['page'])
1056 $o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
1058 $o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
1062 $lastpage = (($numpages > intval($numpages)) ? intval($numpages)+1 : $numpages);
1063 $o .= "<span class=\"pager_last\"><a href=\"$url"."&page=$lastpage\">" . t('last') . "</a></span> ";
1065 if(($a->pager['total'] - ($a->pager['itemspage'] * $a->pager['page'])) > 0)
1066 $o .= '<span class="pager_next">'."<a href=\"$url"."&page=".($a->pager['page'] + 1).'">' . t('next') . '</a></span>';
1067 $o .= '</div>'."\r\n";
1072 // Turn user/group ACLs stored as angle bracketed text into arrays
1074 if(! function_exists('expand_acl')) {
1075 function expand_acl($s) {
1076 // turn string array of angle-bracketed elements into numeric array
1077 // e.g. "<1><2><3>" => array(1,2,3);
1081 $t = str_replace('<','',$s);
1082 $a = explode('>',$t);
1083 foreach($a as $aa) {
1085 $ret[] = intval($aa);
1091 // Used to wrap ACL elements in angle brackets for storage
1093 if(! function_exists('sanitise_acl')) {
1094 function sanitise_acl(&$item) {
1096 $item = '<' . intval(notags(trim($item))) . '>';
1101 // retrieve a "family" of config variables from database to cached storage
1103 if(! function_exists('load_config')) {
1104 function load_config($family) {
1106 $r = q("SELECT * FROM `config` WHERE `cat` = '%s'",
1110 foreach($r as $rr) {
1112 $a->config[$family][$k] = $rr['v'];
1117 // get a particular config variable given the family name
1118 // and key. Returns false if not set.
1119 // $instore is only used by the set_config function
1120 // to determine if the key already exists in the DB
1121 // If a key is found in the DB but doesn't exist in
1122 // local config cache, pull it into the cache so we don't have
1123 // to hit the DB again for this item.
1125 if(! function_exists('get_config')) {
1126 function get_config($family, $key, $instore = false) {
1131 if(isset($a->config[$family][$key])) {
1132 if($a->config[$family][$key] === '!<unset>!') {
1135 return $a->config[$family][$key];
1138 $ret = q("SELECT `v` FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1143 $a->config[$family][$key] = $ret[0]['v'];
1144 return $ret[0]['v'];
1147 $a->config[$family][$key] = '!<unset>!';
1152 // Store a config value ($value) in the category ($family)
1153 // under the key ($key)
1154 // Return the value, or false if the database update failed
1156 if(! function_exists('set_config')) {
1157 function set_config($family,$key,$value) {
1161 if(get_config($family,$key,true) === false) {
1162 $ret = q("INSERT INTO `config` ( `cat`, `k`, `v` ) VALUES ( '%s', '%s', '%s' ) ",
1171 $ret = q("UPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1177 $a->config[$family][$key] = $value;
1185 if(! function_exists('load_pconfig')) {
1186 function load_pconfig($uid,$family) {
1188 $r = q("SELECT * FROM `pconfig` WHERE `cat` = '%s' AND `uid` = %d",
1193 foreach($r as $rr) {
1195 $a->config[$uid][$family][$k] = $rr['v'];
1202 if(! function_exists('get_pconfig')) {
1203 function get_pconfig($uid,$family, $key, $instore = false) {
1208 if(isset($a->config[$uid][$family][$key])) {
1209 if($a->config[$uid][$family][$key] === '!<unset>!') {
1212 return $a->config[$uid][$family][$key];
1216 $ret = q("SELECT `v` FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1223 $a->config[$uid][$family][$key] = $ret[0]['v'];
1224 return $ret[0]['v'];
1227 $a->config[$uid][$family][$key] = '!<unset>!';
1232 if(! function_exists('del_config')) {
1233 function del_config($family,$key) {
1236 if(x($a->config[$family],$key))
1237 unset($a->config[$family][$key]);
1238 $ret = q("DELETE FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
1247 // Same as above functions except these are for personal config storage and take an
1248 // additional $uid argument.
1250 if(! function_exists('set_pconfig')) {
1251 function set_pconfig($uid,$family,$key,$value) {
1255 if(get_pconfig($uid,$family,$key,true) === false) {
1256 $ret = q("INSERT INTO `pconfig` ( `uid`, `cat`, `k`, `v` ) VALUES ( %d, '%s', '%s', '%s' ) ",
1266 $ret = q("UPDATE `pconfig` SET `v` = '%s' WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1273 $a->config[$uid][$family][$key] = $value;
1280 if(! function_exists('del_pconfig')) {
1281 function del_pconfig($uid,$family,$key) {
1284 if(x($a->config[$uid][$family],$key))
1285 unset($a->config[$uid][$family][$key]);
1286 $ret = q("DELETE FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
1295 // convert an XML document to a normalised, case-corrected array
1296 // used by webfinger
1298 if(! function_exists('convert_xml_element_to_array')) {
1299 function convert_xml_element_to_array($xml_element, &$recursion_depth=0) {
1301 // If we're getting too deep, bail out
1302 if ($recursion_depth > 512) {
1306 if (!is_string($xml_element) &&
1307 !is_array($xml_element) &&
1308 (get_class($xml_element) == 'SimpleXMLElement')) {
1309 $xml_element_copy = $xml_element;
1310 $xml_element = get_object_vars($xml_element);
1313 if (is_array($xml_element)) {
1314 $result_array = array();
1315 if (count($xml_element) <= 0) {
1316 return (trim(strval($xml_element_copy)));
1319 foreach($xml_element as $key=>$value) {
1322 $result_array[strtolower($key)] =
1323 convert_xml_element_to_array($value, $recursion_depth);
1326 if ($recursion_depth == 0) {
1327 $temp_array = $result_array;
1328 $result_array = array(
1329 strtolower($xml_element_copy->getName()) => $temp_array,
1333 return ($result_array);
1336 return (trim(strval($xml_element)));
1340 // Given an email style address, perform webfinger lookup and
1341 // return the resulting DFRN profile URL, or if no DFRN profile URL
1342 // is located, returns an OStatus subscription template (prefixed
1343 // with the string 'stat:' to identify it as on OStatus template).
1344 // If this isn't an email style address just return $s.
1345 // Return an empty string if email-style addresses but webfinger fails,
1346 // or if the resultant personal XRD doesn't contain a supported
1347 // subscription/friend-request attribute.
1349 if(! function_exists('webfinger_dfrn')) {
1350 function webfinger_dfrn($s) {
1351 if(! strstr($s,'@')) {
1354 $links = webfinger($s);
1355 logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA);
1357 foreach($links as $link)
1358 if($link['@attributes']['rel'] === NAMESPACE_DFRN)
1359 return $link['@attributes']['href'];
1360 foreach($links as $link)
1361 if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB)
1362 return 'stat:' . $link['@attributes']['template'];
1367 // Given an email style address, perform webfinger lookup and
1368 // return the array of link attributes from the personal XRD file.
1369 // On error/failure return an empty array.
1372 if(! function_exists('webfinger')) {
1373 function webfinger($s) {
1375 if(strstr($s,'@')) {
1376 $host = substr($s,strpos($s,'@') + 1);
1379 $tpl = fetch_lrdd_template($host);
1380 logger('webfinger: lrdd template: ' . $tpl);
1382 $pxrd = str_replace('{uri}', urlencode('acct:'.$s), $tpl);
1383 logger('webfinger: pxrd: ' . $pxrd);
1384 $links = fetch_xrd_links($pxrd);
1385 if(! count($links)) {
1386 // try with double slashes
1387 $pxrd = str_replace('{uri}', urlencode('acct://'.$s), $tpl);
1388 logger('webfinger: pxrd: ' . $pxrd);
1389 $links = fetch_xrd_links($pxrd);
1397 if(! function_exists('lrdd')) {
1398 function lrdd($uri) {
1402 if(strstr($uri,'@')) {
1403 return(webfinger($uri));
1406 $html = fetch_url($uri);
1407 $headers = $a->get_curl_headers();
1408 logger('lrdd: headers=' . $headers, LOGGER_DEBUG);
1409 $lines = explode("\n",$headers);
1411 foreach($lines as $line) {
1412 // TODO alter the following regex to support multiple relations (space separated)
1413 if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
1414 $link = $matches[1];
1417 // don't try and run feeds through the html5 parser
1418 if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml'))))
1420 if(stristr($html,'<rss') || stristr($html,'<feed'))
1424 if(! isset($link)) {
1425 // parse the page of the supplied URL looking for rel links
1427 require_once('library/HTML5/Parser.php');
1428 $dom = HTML5_Parser::parse($html);
1431 $items = $dom->getElementsByTagName('link');
1433 foreach($items as $item) {
1434 $x = $item->getAttribute('rel');
1436 $link = $item->getAttribute('href');
1444 return(fetch_xrd_links($link));
1451 // Given a host name, locate the LRDD template from that
1452 // host. Returns the LRDD template or an empty string on
1455 if(! function_exists('fetch_lrdd_template')) {
1456 function fetch_lrdd_template($host) {
1458 $url = 'http://' . $host . '/.well-known/host-meta' ;
1459 $links = fetch_xrd_links($url);
1460 logger('template: ' . print_r($links,true));
1462 foreach($links as $link)
1463 if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd')
1464 $tpl = $link['@attributes']['template'];
1466 if(! strpos($tpl,'{uri}'))
1471 // Given a URL, retrieve the page as an XRD document.
1472 // Return an array of links.
1473 // on error/failure return empty array.
1475 if(! function_exists('fetch_xrd_links')) {
1476 function fetch_xrd_links($url) {
1479 $xml = fetch_url($url);
1483 logger('fetch_xrd_links: ' . $xml, LOGGER_DATA);
1484 $h = simplexml_load_string($xml);
1485 $arr = convert_xml_element_to_array($h);
1489 if(isset($arr['xrd']['link'])) {
1490 $link = $arr['xrd']['link'];
1491 if(! isset($link[0]))
1492 $links = array($link);
1496 if(isset($arr['xrd']['alias'])) {
1497 $alias = $arr['xrd']['alias'];
1498 if(! isset($alias[0]))
1499 $aliases = array($alias);
1502 foreach($aliases as $alias) {
1503 $links[]['@attributes'] = array('rel' => 'alias' , 'href' => $alias);
1507 logger('fetch_xrd_links: ' . print_r($links,true), LOGGER_DATA);
1513 // Convert an ACL array to a storable string
1515 if(! function_exists('perms2str')) {
1516 function perms2str($p) {
1519 if(is_array($tmp)) {
1520 array_walk($tmp,'sanitise_acl');
1521 $ret = implode('',$tmp);
1526 // generate a guaranteed unique (for this domain) item ID for ATOM
1527 // safe from birthday paradox
1529 if(! function_exists('item_new_uri')) {
1530 function item_new_uri($hostname,$uid) {
1534 $hash = random_string();
1536 $uri = "urn:X-dfrn:" . $hostname . ':' . $uid . ':' . $hash;
1538 $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
1542 } while($dups == true);
1546 // Generate a guaranteed unique photo ID.
1547 // safe from birthday paradox
1549 if(! function_exists('photo_new_resource')) {
1550 function photo_new_resource() {
1554 $resource = hash('md5',uniqid(mt_rand(),true));
1555 $r = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1",
1560 } while($found == true);
1565 // Take a URL from the wild, prepend http:// if necessary
1566 // and check DNS to see if it's real
1567 // return true if it's OK, false if something is wrong with it
1569 if(! function_exists('validate_url')) {
1570 function validate_url(&$url) {
1571 if(substr($url,0,4) != 'http')
1572 $url = 'http://' . $url;
1573 $h = parse_url($url);
1575 if(($h) && (dns_get_record($h['host'], DNS_A + DNS_CNAME + DNS_PTR))) {
1581 // checks that email is an actual resolvable internet address
1583 if(! function_exists('validate_email')) {
1584 function validate_email($addr) {
1586 if(! strpos($addr,'@'))
1588 $h = substr($addr,strpos($addr,'@') + 1);
1590 if(($h) && (dns_get_record($h, DNS_A + DNS_CNAME + DNS_PTR + DNS_MX))) {
1596 // Check $url against our list of allowed sites,
1597 // wildcards allowed. If allowed_sites is unset return true;
1598 // If url is allowed, return true.
1599 // otherwise, return false
1601 if(! function_exists('allowed_url')) {
1602 function allowed_url($url) {
1604 $h = parse_url($url);
1610 $str_allowed = get_config('system','allowed_sites');
1616 $host = strtolower($h['host']);
1618 // always allow our own site
1620 if($host == strtolower($_SERVER['SERVER_NAME']))
1623 $fnmatch = function_exists('fnmatch');
1624 $allowed = explode(',',$str_allowed);
1626 if(count($allowed)) {
1627 foreach($allowed as $a) {
1628 $pat = strtolower(trim($a));
1629 if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
1638 // check if email address is allowed to register here.
1639 // Compare against our list (wildcards allowed).
1640 // Returns false if not allowed, true if allowed or if
1641 // allowed list is not configured.
1643 if(! function_exists('allowed_email')) {
1644 function allowed_email($email) {
1647 $domain = strtolower(substr($email,strpos($email,'@') + 1));
1651 $str_allowed = get_config('system','allowed_email');
1657 $fnmatch = function_exists('fnmatch');
1658 $allowed = explode(',',$str_allowed);
1660 if(count($allowed)) {
1661 foreach($allowed as $a) {
1662 $pat = strtolower(trim($a));
1663 if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
1672 // Format the like/dislike text for a profile item
1673 // $cnt = number of people who like/dislike the item
1674 // $arr = array of pre-linked names of likers/dislikers
1675 // $type = one of 'like, 'dislike'
1677 // returns formatted text
1679 if(! function_exists('format_like')) {
1680 function format_like($cnt,$arr,$type,$id) {
1683 $o .= $arr[0] . (($type === 'like') ? t(' likes this.') : t(' doesn\'t like this.')) . EOL ;
1685 $o .= '<span class="fakelink" onclick="openClose(\'' . $type . 'list-' . $id . '\');" >'
1686 . $cnt . ' ' . t('people') . '</span> ' . (($type === 'like') ? t('like this.') : t('don\'t like this.')) . EOL ;
1687 $total = count($arr);
1688 if($total >= MAX_LIKERS)
1689 $arr = array_slice($arr, 0, MAX_LIKERS - 1);
1690 if($total < MAX_LIKERS)
1691 $arr[count($arr)-1] = t('and') . ' ' . $arr[count($arr)-1];
1692 $str = implode(', ', $arr);
1693 if($total >= MAX_LIKERS)
1694 $str .= t(', and ') . $total - MAX_LIKERS . t(' other people');
1695 $str .= (($type === 'like') ? t(' like this.') : t(' don\'t like this.'));
1696 $o .= "\t" . '<div id="' . $type . 'list-' . $id . '" style="display: none;" >' . $str . '</div>';
1702 // wrapper to load a view template, checking for alternate
1703 // languages before falling back to the default
1705 if(! function_exists('load_view_file')) {
1706 function load_view_file($s) {
1709 $lang = get_config('system','language');
1712 if(file_exists("$d/$lang/$b"))
1713 return file_get_contents("$d/$lang/$b");
1714 return file_get_contents($s);
1717 // for html,xml parsing - let's say you've got
1718 // an attribute foobar="class1 class2 class3"
1719 // and you want to find out if it contains 'class3'.
1720 // you can't use a normal sub string search because you
1721 // might match 'notclass3' and a regex to do the job is
1722 // possible but a bit complicated.
1723 // pass the attribute string as $attr and the attribute you
1724 // are looking for as $s - returns true if found, otherwise false
1726 if(! function_exists('attribute_contains')) {
1727 function attribute_contains($attr,$s) {
1728 $a = explode(' ', $attr);
1729 if(count($a) && in_array($s,$a))
1734 if(! function_exists('logger')) {
1735 function logger($msg,$level = 0) {
1736 $debugging = get_config('system','debugging');
1737 $loglevel = intval(get_config('system','loglevel'));
1738 $logfile = get_config('system','logfile');
1740 if((! $debugging) || (! $logfile) || ($level > $loglevel))
1743 @file_put_contents($logfile, datetime_convert() . ':' . session_id() . ' ' . $msg . "\n", FILE_APPEND);
1748 if(! function_exists('activity_match')) {
1749 function activity_match($haystack,$needle) {
1750 if(($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle,NAMESPACE_ACTIVITY_SCHEMA)))
1756 // Pull out all #hashtags and @person tags from $s;
1757 // We also get @person@domain.com - which would make
1758 // the regex quite complicated as tags can also
1759 // end a sentence. So we'll run through our results
1760 // and strip the period from any tags which end with one.
1761 // Returns array of tags found, or empty array.
1764 if(! function_exists('get_tags')) {
1765 function get_tags($s) {
1768 // ignore anything in a code block
1770 $s = preg_replace('/\[code\](.*?)\[\/code\]/sm','',$s);
1772 if(preg_match_all('/([@#][^ \x0D\x0A,:?]+)([ \x0D\x0A,:?]|$)/',$s,$match)) {
1773 foreach($match[1] as $match) {
1774 if(strstr($match,"]")) {
1775 // we might be inside a bbcode color tag - leave it alone
1778 if(substr($match,-1,1) === '.')
1779 $ret[] = substr($match,0,-1);
1789 // quick and dirty quoted_printable encoding
1791 if(! function_exists('qp')) {
1793 return str_replace ("%","=",rawurlencode($s));
1797 if(! function_exists('like_puller')) {
1798 function like_puller($a,$item,&$arr,$mode) {
1802 $verb = (($mode === 'like') ? ACTIVITY_LIKE : ACTIVITY_DISLIKE);
1804 if((activity_match($item['verb'],$verb)) && ($item['id'] != $item['parent'])) {
1805 $url = $item['author-link'];
1806 if(($item['network'] === 'dfrn') && (! $item['self']) && ($item['author-link'] == $item['url'])) {
1807 $url = $a->get_baseurl() . '/redir/' . $item['contact-id'];
1808 $sparkle = ' class="sparkle" ';
1810 if(! ((isset($arr[$item['parent'] . '-l'])) && (is_array($arr[$item['parent'] . '-l']))))
1811 $arr[$item['parent'] . '-l'] = array();
1812 if(! isset($arr[$item['parent']]))
1813 $arr[$item['parent']] = 1;
1815 $arr[$item['parent']] ++;
1816 $arr[$item['parent'] . '-l'][] = '<a href="'. $url . '"'. $sparkle .'>' . $item['author-name'] . '</a>';
1821 if(! function_exists('get_mentions')) {
1822 function get_mentions($item) {
1824 if(! strlen($item['tag']))
1827 $arr = explode(',',$item['tag']);
1828 foreach($arr as $x) {
1830 if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches))
1831 $o .= "\t\t" . '<link rel="mentioned" href="' . $matches[1] . '" />' . "\r\n";
1836 if(! function_exists('contact_block')) {
1837 function contact_block() {
1841 $shown = get_pconfig($a->profile['uid'],'system','display_friend_count');
1845 if((! is_array($a->profile)) || ($a->profile['hide-friends']))
1847 $r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0",
1848 intval($a->profile['uid'])
1851 $total = intval($r[0]['total']);
1854 $o .= '<h4 class="contact-h4">' . t('No contacts') . '</h4>';
1857 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0 ORDER BY RAND() LIMIT %d",
1858 intval($a->profile['uid']),
1862 $o .= '<h4 class="contact-h4">' . $total . ' ' . t('Contacts') . '</h4><div id="contact-block">';
1863 foreach($r as $rr) {
1864 $redirect_url = $a->get_baseurl() . '/redir/' . $rr['id'];
1865 if(local_user() && ($rr['uid'] == local_user())
1866 && ($rr['network'] === 'dfrn')) {
1867 $url = $redirect_url;
1868 $sparkle = ' sparkle';
1875 $o .= '<div class="contact-block-div"><a class="contact-block-link' . $sparkle . '" href="' . $url . '" ><img class="contact-block-img' . $sparkle . '" src="' . $rr['micro'] . '" title="' . $rr['name'] . ' [' . $rr['url'] . ']" alt="' . $rr['name'] . '" /></a></div>' . "\r\n";
1877 $o .= '</div><div id="contact-block-end"></div>';
1878 $o .= '<div id="viewcontacts"><a id="viewcontacts-link" href="viewcontacts/' . $a->profile['nickname'] . '">' . t('View Contacts') . '</a></div>';
1882 $arr = array('contacts' => $r, 'output' => $o);
1884 call_hooks('contact_block_end', $arr);
1889 if(! function_exists('search')) {
1890 function search($s) {
1892 $o = '<div id="search-box">';
1893 $o .= '<form action="' . $a->get_baseurl() . '/search' . '" method="get" >';
1894 $o .= '<input type="text" name="search" id="search-text" value="' . $s .'" />';
1895 $o .= '<input type="submit" name="submit" id="search-submit" value="' . t('Search') . '" />';
1896 $o .= '</form></div>';
1900 if(! function_exists('valid_email')) {
1901 function valid_email($x){
1902 if(preg_match('/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/',$x))
1908 if(! function_exists('gravatar_img')) {
1909 function gravatar_img($email) {
1911 $opt = 'identicon'; // psuedo-random geometric pattern if not found
1913 $hash = md5(trim(strtolower($email)));
1915 $url = 'http://www.gravatar.com/avatar/' . $hash . '.jpg'
1916 . '?s=' . $size . '&d=' . $opt . '&r=' . $rating;
1918 logger('gravatar: ' . $email . ' ' . $url);
1922 if(! function_exists('aes_decrypt')) {
1923 function aes_decrypt($val,$ky)
1925 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
1926 for($a=0;$a<strlen($ky);$a++)
1927 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
1928 $mode = MCRYPT_MODE_ECB;
1929 $enc = MCRYPT_RIJNDAEL_128;
1930 $dec = @mcrypt_decrypt($enc, $key, $val, $mode, @mcrypt_create_iv( @mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM ) );
1931 return rtrim($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));
1935 if(! function_exists('aes_encrypt')) {
1936 function aes_encrypt($val,$ky)
1938 $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
1939 for($a=0;$a<strlen($ky);$a++)
1940 $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
1941 $mode=MCRYPT_MODE_ECB;
1942 $enc=MCRYPT_RIJNDAEL_128;
1943 $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
1944 return mcrypt_encrypt($enc, $key, $val, $mode, mcrypt_create_iv( mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM));
1952 * Replace naked text hyperlink with HTML formatted hyperlink
1956 if(! function_exists('linkify')) {
1957 function linkify($s) {
1958 $s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%]*)/", ' <a href="$1" target="external-link">$1</a>', $s);
1968 * Replaces text emoticons with graphical images
1970 * @Parameter: string $s
1975 if(! function_exists('smilies')) {
1976 function smilies($s) {
1980 array( ':-)', ';-)', ':-(', ':(', ':-P', ':-"', ':-x', ':-X', ':-D', '8-|', '8-O'),
1982 '<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":-)" />',
1983 '<img src="' . $a->get_baseurl() . '/images/smiley-wink.gif" alt=";-)" />',
1984 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":-(" />',
1985 '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":(" />',
1986 '<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":-P" />',
1987 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-\"" />',
1988 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-x" />',
1989 '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-X" />',
1990 '<img src="' . $a->get_baseurl() . '/images/smiley-laughing.gif" alt=":-D" />',
1991 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-|" />',
1992 '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-O" />'
1999 * Function : profile_load
2001 * @parameter string $nickname
2002 * @parameter int $profile
2004 * Summary: Loads a profile into the page sidebar.
2005 * The function requires a writeable copy of the main App structure, and the nickname
2006 * of a registered local account.
2008 * If the viewer is an authenticated remote viewer, the profile displayed is the
2009 * one that has been configured for his/her viewing in the Contact manager.
2010 * Passing a non-zero profile ID can also allow a preview of a selected profile
2013 * Profile information is placed in the App structure for later retrieval.
2014 * Honours the owner's chosen theme for display.
2018 if(! function_exists('profile_load')) {
2019 function profile_load(&$a, $nickname, $profile = 0) {
2021 $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
2022 intval($_SESSION['visitor_id']));
2024 $profile = $r[0]['profile-id'];
2030 $profile_int = intval($profile);
2031 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2032 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2033 WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d LIMIT 1",
2035 intval($profile_int)
2039 $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
2040 LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
2041 WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 LIMIT 1",
2046 if(($r === false) || (! count($r))) {
2047 notice( t('No profile') . EOL );
2052 $a->profile = $r[0];
2055 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
2056 $_SESSION['theme'] = $a->profile['theme'];
2058 if(! (x($a->page,'aside')))
2059 $a->page['aside'] = '';
2061 $a->page['aside'] .= profile_sidebar($a->profile);
2062 $a->page['aside'] .= contact_block();
2070 * Function: profile_sidebar
2072 * Formats a profile for display in the sidebar.
2073 * It is very difficult to templatise the HTML completely
2074 * because of all the conditional logic.
2076 * @parameter: array $profile
2078 * Returns HTML string stuitable for sidebar inclusion
2079 * Exceptions: Returns empty string if passed $profile is wrong type or not populated
2084 if(! function_exists('profile_sidebar')) {
2085 function profile_sidebar($profile) {
2091 if((! is_array($profile)) && (! count($profile)))
2094 call_hooks('profile_sidebar_enter', $profile);
2096 $fullname = '<div class="fn">' . $profile['name'] . '</div>';
2098 $pdesc = '<div class="title">' . $profile['pdesc'] . '</div>';
2102 $photo = '<div id="profile=photo-wrapper"><img class="photo" src="' . $profile['photo'] . '" alt="' . $profile['name'] . '" /></div>';
2104 $connect = (($profile['uid'] != local_user()) ? '<li><a id="dfrn-request-link" href="dfrn_request/' . $profile['nickname'] . '">' . t('Connect') . '</a></li>' : '');
2106 if((x($profile,'address') == 1)
2107 || (x($profile,'locality') == 1)
2108 || (x($profile,'region') == 1)
2109 || (x($profile,'postal-code') == 1)
2110 || (x($profile,'country-name') == 1))
2114 $location .= '<div class="location"><span class="location-label">' . t('Location:') . '</span> <div class="adr">';
2115 $location .= ((x($profile,'address') == 1) ? '<div class="street-address">' . $profile['address'] . '</div>' : '');
2116 $location .= (((x($profile,'locality') == 1) || (x($profile,'region') == 1) || (x($profile,'postal-code') == 1))
2117 ? '<span class="city-state-zip"><span class="locality">' . $profile['locality'] . '</span>'
2118 . ((x($profile['locality']) == 1) ? t(', ') : '')
2119 . '<span class="region">' . $profile['region'] . '</span>'
2120 . ' <span class="postal-code">' . $profile['postal-code'] . '</span></span>' : '');
2121 $location .= ((x($profile,'country-name') == 1) ? ' <span class="country-name">' . $profile['country-name'] . '</span>' : '');
2122 $location .= '</div></div><div class="profile-clear"></div>';
2126 $gender = ((x($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>' : '');
2128 $pubkey = ((x($profile,'pubkey') == 1) ? '<div class="key" style="display:none;">' . $profile['pubkey'] . '</div>' : '');
2130 $marital = ((x($profile,'marital') == 1) ? '<div class="marital"><span class="marital-label"><span class="heart">♥</span> ' . t('Status:') . ' </span><span class="marital-text">' . $profile['marital'] . '</span></div></div><div class="profile-clear"></div>' : '');
2132 $homepage = ((x($profile,'homepage') == 1) ? '<div class="homepage"><span class="homepage-label">' . t('Homepage:') . ' </span><span class="homepage-url">' . linkify($profile['homepage']) . '</span></div></div><div class="profile-clear"></div>' : '');
2134 $tpl = load_view_file('view/profile_vcard.tpl');
2136 $o .= replace_macros($tpl, array(
2137 '$fullname' => $fullname,
2141 '$connect' => $connect,
2142 '$location' => $location,
2143 '$gender' => $gender,
2144 '$pubkey' => $pubkey,
2145 '$marital' => $marital,
2146 '$homepage' => $homepage
2150 $arr = array('profile' => $profile, 'entry' => $o);
2152 call_hooks('profile_sidebar', $arr);
2158 if(! function_exists('register_hook')) {
2159 function register_hook($hook,$file,$function) {
2161 $r = q("SELECT * FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2169 $r = q("INSERT INTO `hook` (`hook`, `file`, `function`) VALUES ( '%s', '%s', '%s' ) ",
2177 if(! function_exists('unregister_hook')) {
2178 function unregister_hook($hook,$file,$function) {
2180 $r = q("DELETE FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
2189 if(! function_exists('load_hooks')) {
2190 function load_hooks() {
2192 $r = q("SELECT * FROM `hook` WHERE 1");
2194 foreach($r as $rr) {
2195 $a->hooks[] = array($rr['hook'], $rr['file'], $rr['function']);
2201 if(! function_exists('call_hooks')) {
2202 function call_hooks($name, &$data = null) {
2205 if(count($a->hooks)) {
2206 foreach($a->hooks as $hook) {
2207 if($hook[HOOK_HOOK] === $name) {
2208 @include_once($hook[HOOK_FILE]);
2209 if(function_exists($hook[HOOK_FUNCTION])) {
2210 $func = $hook[HOOK_FUNCTION];
2219 if(! function_exists('day_translate')) {
2220 function day_translate($s) {
2221 $ret = str_replace(array('Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'),
2222 array( t('Monday'), t('Tuesday'), t('Wednesday'), t('Thursday'), t('Friday'), t('Saturday'), t('Sunday')),
2225 $ret = str_replace(array('January','February','March','April','May','June','July','August','September','October','November','December'),
2226 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')),
2232 if(! function_exists('get_birthdays')) {
2233 function get_birthdays() {
2241 $bd_format = get_config('system','birthday_format');
2243 $bd_format = 'g A l F d' ; // 8 AM Friday January 18
2245 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
2246 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
2247 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
2248 ORDER BY `start` DESC ",
2249 intval(local_user()),
2250 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
2251 dbesc(datetime_convert('UTC','UTC','now'))
2254 if($r && count($r)) {
2255 $o .= '<div id="birthday-wrapper"><div id="birthday-title">' . t('Birthdays this week:') . '</div>';
2256 $o .= '<div id="birthday-adjust">' . t("\x28Adjusted for local time\x29") . '</div>';
2257 $o .= '<div id="birthday-title-end"></div>';
2259 foreach($r as $rr) {
2260 $now = strtotime('now');
2261 $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
2263 $o .= '<div class="birthday-list" id="birthday-' . $rr['eid'] . '"><a class="sparkle" href="'
2264 . $a->get_baseurl() . '/redir/' . $rr['cid'] . '">' . $rr['name'] . '</a> '
2265 . day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $bd_format)) . (($today) ? ' ' . t('[today]') : '')
2278 * Compare two URLs to see if they are the same, but ignore
2279 * slight but hopefully insignificant differences such as if one
2280 * is https and the other isn't, or if one is www.something and
2281 * the other isn't - and also ignore case differences.
2283 * Return true if the URLs match, otherwise false.
2287 if(! function_exists('link_compare')) {
2288 function link_compare($a,$b) {
2289 $a1 = str_replace(array('https:','//www.'), array('http:','//'), $a);
2290 $b1 = str_replace(array('https:','//www.'), array('http:','//'), $b);
2291 if(strcasecmp($a1,$b1) === 0)
2297 if(! function_exists('prepare_body')) {
2298 function prepare_body($item) {
2300 require_once('include/bbcode.php');
2302 $s = smilies(bbcode($item['body']));
2309 * Wrap calls to proc_close(proc_open()) and call hook
2310 * so plugins can take part in process :)
2313 * $cmd program to run
2314 * next args are passed as $cmd command line
2316 * e.g.: proc_run("ls","-la","/tmp");
2318 * $cmd and string args are surrounded with ""
2321 if(! function_exists('run_proc')) {
2322 function proc_run($cmd){
2323 $args = func_get_args();
2324 call_hooks("proc_run", $args);
2326 foreach ($args as &$arg){
2327 if(is_string($arg)) $arg='"'.$arg.'"';
2329 $cmdline = implode($args," ");
2330 proc_close(proc_open($cmdline." &",array(),$foo));
2334 * Return full URL to theme which is currently in effect.
2335 * Provide a sane default if nothing is chosen or the specified theme does not exist.
2338 if(! function_exists('current_theme_url')) {
2339 function current_theme_url() {
2341 $app_base_themes = array('duepuntozero', 'loozah');
2345 $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
2346 $theme_name = ((x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
2348 if($theme_name && file_exists('view/theme/' . $theme_name . '/style.css'))
2349 return($a->get_baseurl() . '/view/theme/' . $theme_name . '/style.css');
2351 foreach($app_base_themes as $t) {
2352 if(file_exists('view/theme/' . $t . '/style.css'))
2353 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
2356 $fallback = glob('view/theme/*/style.css');
2357 if(count($fallback))
2358 return($a->get_baseurl() . $fallback[0]);
2363 if(! function_exists('feed_birthday')) {
2364 function feed_birthday($uid,$tz) {
2368 * Determine the next birthday, but only if the birthday is published
2369 * in the default profile. We _could_ also look for a private profile that the
2370 * recipient can see, but somebody could get mad at us if they start getting
2371 * public birthday greetings when they haven't made this info public.
2373 * Assuming we are able to publish this info, we are then going to convert
2374 * the start time from the owner's timezone to UTC.
2376 * This will potentially solve the problem found with some social networks
2377 * where birthdays are converted to the viewer's timezone and salutations from
2378 * elsewhere in the world show up on the wrong day. We will convert it to the
2379 * viewer's timezone also, but first we are going to convert it from the birthday
2380 * person's timezone to GMT - so the viewer may find the birthday starting at
2381 * 6:00PM the day before, but that will correspond to midnight to the birthday person.
2387 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
2391 if($p && count($p)) {
2392 $tmp_dob = substr($p[0]['dob'],5);
2393 if(intval($tmp_dob)) {
2394 $y = datetime_convert($tz,$tz,'now','Y');
2395 $bd = $y . '-' . $tmp_dob . ' 00:00';
2396 $t_dob = strtotime($bd);
2397 $now = strtotime(datetime_convert($tz,$tz,'now'));
2399 $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
2400 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
2408 * return atom link elements for all of our hubs
2411 if(! function_exists('feed_hublinks')) {
2412 function feed_hublinks() {
2414 $hub = get_config('system','huburl');
2418 $hubs = explode(',', $hub);
2420 foreach($hubs as $h) {
2424 $hubxml .= '<link rel="hub" href="' . xmlify($h) . '" />' . "\n" ;
2431 /* return atom link elements for salmon endpoints */
2433 if(! function_exists('feed_salmonlinks')) {
2434 function feed_salmonlinks($nick) {
2438 $salmon = '<link rel="salmon" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2440 // old style links that status.net still needed as of 12/2010
2442 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-replies" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
2443 $salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-mention" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;