\r\n" ); define ( 'ATOM_TIME', 'Y-m-d\TH:i:s\Z' ); // log levels define ( 'LOGGER_NORMAL', 0 ); define ( 'LOGGER_TRACE', 1 ); define ( 'LOGGER_DEBUG', 2 ); define ( 'LOGGER_DATA', 3 ); define ( 'LOGGER_ALL', 4 ); // registration policy define ( 'REGISTER_CLOSED', 0 ); define ( 'REGISTER_APPROVE', 1 ); define ( 'REGISTER_OPEN', 2 ); // relationship types define ( 'REL_VIP', 1); define ( 'REL_FAN', 2); define ( 'REL_BUD', 3); // page/profile types // PAGE_NORMAL is a typical personal profile account // PAGE_SOAPBOX automatically approves all friend requests as REL_FAN, (readonly) // PAGE_COMMUNITY automatically approves all friend requests as REL_FAN, but with // write access to wall and comments (no email and not included in page owner's ACL lists) // PAGE_FREELOVE automatically approves all friend requests as full friends (REL_BUD). define ( 'PAGE_NORMAL', 0 ); define ( 'PAGE_SOAPBOX', 1 ); define ( 'PAGE_COMMUNITY', 2 ); define ( 'PAGE_FREELOVE', 3 ); // Maximum number of "people who like (or don't like) this" // that we will list by name define ( 'MAX_LIKERS', 75); // email notification options define ( 'NOTIFY_INTRO', 0x0001 ); define ( 'NOTIFY_CONFIRM', 0x0002 ); define ( 'NOTIFY_WALL', 0x0004 ); define ( 'NOTIFY_COMMENT', 0x0008 ); define ( 'NOTIFY_MAIL', 0x0010 ); // various namespaces we may need to parse define ( 'NAMESPACE_DFRN' , 'http://purl.org/macgirvin/dfrn/1.0' ); define ( 'NAMESPACE_THREAD' , 'http://purl.org/syndication/thread/1.0' ); define ( 'NAMESPACE_TOMB' , 'http://purl.org/atompub/tombstones/1.0' ); define ( 'NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/' ); define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' ); define ( 'NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia' ); define ( 'NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env' ); define ( 'NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe' ); define ( 'NAMESPACE_GEORSS', 'http://www.georss.org/georss' ); define ( 'NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0' ); define ( 'NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from' ); // activity stream defines define ( 'ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like' ); define ( 'ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike' ); define ( 'ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart' ); define ( 'ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' ); define ( 'ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow' ); define ( 'ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'unfollow' ); define ( 'ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post' ); define ( 'ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update' ); define ( 'ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag' ); define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' ); define ( 'ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note' ); define ( 'ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person' ); define ( 'ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo' ); define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' ); define ( 'ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' ); // item weight for query ordering define ( 'GRAVITY_PARENT', 0); define ( 'GRAVITY_LIKE', 3); define ( 'GRAVITY_COMMENT', 6); // Please disable magic_quotes_gpc so we don't have to do this. // See http://php.net/manual/en/security.magicquotes.disabling.php if (get_magic_quotes_gpc()) { $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST); while (list($key, $val) = each($process)) { foreach ($val as $k => $v) { unset($process[$key][$k]); if (is_array($v)) { $process[$key][stripslashes($k)] = $v; $process[] = &$process[$key][stripslashes($k)]; } else { $process[$key][stripslashes($k)] = stripslashes($v); } } } unset($process); } // Our main application structure for the life of this page // Primarily deals with the URL that got us here // and tries to make some sense of it, and // stores our page contents and config storage // and anything else that might need to be passed around // before we spit the page out. if(! class_exists('App')) { class App { public $module_loaded = false; public $config; public $page; public $profile; public $user; public $cid; public $contact; public $content; public $data; public $error = false; public $cmd; public $argv; public $argc; public $module; public $pager; public $strings; public $path; public $interactive = true; private $scheme; private $hostname; private $baseurl; private $db; private $curl_code; private $curl_headers; function __construct() { $this->config = array(); $this->page = array(); $this->pager= array(); $this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'])) ? 'https' : 'http' ); if(x($_SERVER,'SERVER_NAME')) $this->hostname = $_SERVER['SERVER_NAME']; set_include_path("include/$this->hostname" . PATH_SEPARATOR . 'include' . PATH_SEPARATOR . '.' ); if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=") $_SERVER['QUERY_STRING'] = substr($_SERVER['QUERY_STRING'],2); if(x($_GET,'q')) $this->cmd = trim($_GET['q'],'/'); $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/'); if(isset($path) && strlen($path) && ($path != $this->path)) $this->path = $path; $this->argv = explode('/',$this->cmd); $this->argc = count($this->argv); if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) { $this->module = $this->argv[0]; } else { $this->module = 'home'; } if($this->cmd === '.well-known/host-meta') require_once('include/hostxrd.php'); $this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1); $this->pager['itemspage'] = 50; $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage']; $this->pager['total'] = 0; } function get_baseurl($ssl = false) { if(strlen($this->baseurl)) return $this->baseurl; $this->baseurl = (($ssl) ? 'https' : $this->scheme) . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' ); return $this->baseurl; } function set_baseurl($url) { $this->baseurl = $url; $this->hostname = basename($url); } function get_hostname() { return $this->hostname; } function set_hostname($h) { $this->hostname = $h; } function set_path($p) { $this->path = trim(trim($p),'/'); } function get_path() { return $this->path; } function set_pager_total($n) { $this->pager['total'] = intval($n); } function set_pager_itemspage($n) { $this->pager['itemspage'] = intval($n); $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage']; } function init_pagehead() { $tpl = load_view_file("view/head.tpl"); $this->page['htmlhead'] = replace_macros($tpl,array( '$baseurl' => $this->get_baseurl() . '/' )); } function set_curl_code($code) { $this->curl_code = $code; } function get_curl_code() { return $this->curl_code; } function set_curl_headers($headers) { $this->curl_headers = $headers; } function get_curl_headers() { return $this->curl_headers; } }} // retrieve the App structure // useful in functions which require it but don't get it passed to them if(! function_exists('get_app')) { function get_app() { global $a; return $a; }}; // Multi-purpose function to check variable state. // Usage: x($var) or $x($array,'key') // returns false if variable/key is not set // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0. // e.g. x('') or x(0) returns 0; if(! function_exists('x')) { function x($s,$k = NULL) { if($k != NULL) { if((is_array($s)) && (array_key_exists($k,$s))) { if($s[$k]) return (int) 1; return (int) 0; } return false; } else { if(isset($s)) { if($s) { return (int) 1; } return (int) 0; } return false; } }} // called from db initialisation if db is dead. if(! function_exists('system_unavailable')) { function system_unavailable() { include('system_unavailable.php'); killme(); }} // Primarily involved with database upgrade, but also sets the // base url for use in cmdline programs which don't have // $_SERVER variables. if(! function_exists('check_config')) { function check_config(&$a) { load_config('system'); $build = get_config('system','build'); if(! x($build)) $build = set_config('system','build',BUILD_ID); $url = get_config('system','url'); if(! x($url)) $url = set_config('system','url',$a->get_baseurl()); if($build != BUILD_ID) { $stored = intval($build); $current = intval(BUILD_ID); if(($stored < $current) && file_exists('update.php')) { // We're reporting a different version than what is currently installed. // Run any existing update scripts to bring the database up to current. require_once('update.php'); for($x = $stored; $x < $current; $x ++) { if(function_exists('update_' . $x)) { $func = 'update_' . $x; $func($a); } } set_config('system','build', BUILD_ID); } } return; }} // This is our template processor. // $s is the string requiring macro substitution. // $r is an array of key value pairs (search => replace) // returns substituted string. // WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other. // For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing, // depending on the order in which they were declared in the array. if(! function_exists('replace_macros')) { function replace_macros($s,$r) { $search = array(); $replace = array(); if(is_array($r) && count($r)) { foreach ($r as $k => $v ) { $search[] = $k; $replace[] = $v; } } return str_replace($search,$replace,$s); }} // load string translation table for alternate language if(! function_exists('load_translation_table')) { function load_translation_table($lang) { global $a; if(file_exists("view/$lang/strings.php")) include("view/$lang/strings.php"); }} // translate string if translation exists if(! function_exists('t')) { function t($s) { $a = get_app(); if(x($a->strings,$s)) return $a->strings[$s]; return $s; }} // curl wrapper. If binary flag is true, return binary // results. if(! function_exists('fetch_url')) { function fetch_url($url,$binary = false, &$redirects = 0) { $a = get_app(); $ch = curl_init($url); if(($redirects > 8) || (! $ch)) return false; curl_setopt($ch, CURLOPT_HEADER, true); curl_setopt($ch, CURLOPT_RETURNTRANSFER,true); $curl_time = intval(get_config('system','curl_timeout')); curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60)); // by default we will allow self-signed certs // but you can override this $check_cert = get_config('system','verifyssl'); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false)); $prx = get_config('system','proxy'); if(strlen($prx)) { curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1); curl_setopt($ch, CURLOPT_PROXY, $prx); $prxusr = get_config('system','proxyuser'); if(strlen($prxusr)) curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr); } if($binary) curl_setopt($ch, CURLOPT_BINARYTRANSFER,1); $a->set_curl_code(0); $s = curl_exec($ch); $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE)); $header = substr($s,0,strpos($s,"\r\n\r\n")); if(stristr($header,'100') && (strlen($header) < 30)) { // 100 Continue has two headers, get the real one $s = substr($s,strlen($header)+4); $header = substr($s,0,strpos($s,"\r\n\r\n")); } if($http_code == 301 || $http_code == 302 || $http_code == 303) { $matches = array(); preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches); $url = trim(array_pop($matches)); $url_parsed = parse_url($url); if (isset($url_parsed)) { $redirects++; return fetch_url($url,$binary,$redirects); } } $a->set_curl_code($http_code); $body = substr($s,strlen($header)+4); $a->set_curl_headers($header); curl_close($ch); return($body); }} // post request to $url. $params is an array of post variables. if(! function_exists('post_url')) { function post_url($url,$params, $headers = null, &$redirects = 0) { $a = get_app(); $ch = curl_init($url); if(($redirects > 8) || (! $ch)) return false; curl_setopt($ch, CURLOPT_HEADER, true); curl_setopt($ch, CURLOPT_RETURNTRANSFER,true); curl_setopt($ch, CURLOPT_POST,1); curl_setopt($ch, CURLOPT_POSTFIELDS,$params); $curl_time = intval(get_config('system','curl_timeout')); curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60)); if(is_array($headers)) curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); $check_cert = get_config('system','verifyssl'); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false)); $prx = get_config('system','proxy'); if(strlen($prx)) { curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1); curl_setopt($ch, CURLOPT_PROXY, $prx); $prxusr = get_config('system','proxyuser'); if(strlen($prxusr)) curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr); } $a->set_curl_code(0); $s = curl_exec($ch); $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE)); $header = substr($s,0,strpos($s,"\r\n\r\n")); if(stristr($header,'100') && (strlen($header) < 30)) { // 100 Continue has two headers, get the real one $s = substr($s,strlen($header)+4); $header = substr($s,0,strpos($s,"\r\n\r\n")); } if($http_code == 301 || $http_code == 302 || $http_code == 303) { $matches = array(); preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches); $url = trim(array_pop($matches)); $url_parsed = parse_url($url); if (isset($url_parsed)) { $redirects++; return post_url($url,$binary,$headers,$redirects); } } $a->set_curl_code($http_code); $body = substr($s,strlen($header)+4); $a->set_curl_headers($header); curl_close($ch); return($body); }} // random hash, 64 chars if(! function_exists('random_string')) { function random_string() { return(hash('sha256',uniqid(rand(),true))); }} /** * This is our primary input filter. * * The high bit hack only involved some old IE browser, forget which (IE5/Mac?) * that had an XSS attack vector due to stripping the high-bit on an 8-bit character * after cleansing, and angle chars with the high bit set could get through as markup. * * This is now disabled because it was interfering with some legitimate unicode sequences * and hopefully there aren't a lot of those browsers left. * * Use this on any text input where angle chars are not valid or permitted * They will be replaced with safer brackets. This may be filtered further * if these are not allowed either. * */ if(! function_exists('notags')) { function notags($string) { return(str_replace(array("<",">"), array('[',']'), $string)); // High-bit filter no longer used // return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string)); }} // use this on "body" or "content" input where angle chars shouldn't be removed, // and allow them to be safely displayed. if(! function_exists('escape_tags')) { function escape_tags($string) { return(htmlspecialchars($string)); }} // wrapper for adding a login box. If $register == true provide a registration // link. This will most always depend on the value of $a->config['register_policy']. // returns the complete html for inserting into the page if(! function_exists('login')) { function login($register = false) { $o = ""; $register_html = (($register) ? load_view_file("view/register-link.tpl") : ""); $noid = get_config('system','no_openid'); if($noid) { $classname = 'no-openid'; $namelabel = t('Nickname or Email address: '); $passlabel = t('Password: '); $login = t('Login'); } else { $classname = 'openid'; $namelabel = t('Nickname/Email/OpenID: '); $passlabel = t("Password \x28if not OpenID\x29: "); $login = t('Login'); } $lostpass = t('Forgot your password?'); $lostlink = t('Password Reset'); if(x($_SESSION,'authenticated')) { $tpl = load_view_file("view/logout.tpl"); } else { $tpl = load_view_file("view/login.tpl"); } $o = replace_macros($tpl,array( '$register_html' => $register_html, '$classname' => $classname, '$namelabel' => $namelabel, '$passlabel' => $passlabel, '$login' => $login, '$lostpass' => $lostpass, '$lostlink' => $lostlink )); return $o; }} // generate a string that's random, but usually pronounceable. // used to generate initial passwords if(! function_exists('autoname')) { function autoname($len) { $vowels = array('a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u'); if(mt_rand(0,5) == 4) $vowels[] = 'y'; $cons = array( 'b','bl','br', 'c','ch','cl','cr', 'd','dr', 'f','fl','fr', 'g','gh','gl','gr', 'h', 'j', 'k','kh','kl','kr', 'l', 'm', 'n', 'p','ph','pl','pr', 'qu', 'r','rh', 's','sc','sh','sm','sp','st', 't','th','tr', 'v', 'w','wh', 'x', 'z','zh' ); $midcons = array('ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp', 'nd','ng','nk','nt','rn','rp','rt'); $noend = array('bl', 'br', 'cl','cr','dr','fl','fr','gl','gr', 'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh'); $start = mt_rand(0,2); if($start == 0) $table = $vowels; else $table = $cons; $word = ''; for ($x = 0; $x < $len; $x ++) { $r = mt_rand(0,count($table) - 1); $word .= $table[$r]; if($table == $vowels) $table = array_merge($cons,$midcons); else $table = $vowels; } $word = substr($word,0,$len); foreach($noend as $noe) { if((strlen($word) > 2) && (substr($word,-2) == $noe)) { $word = substr($word,0,-1); break; } } if(substr($word,-1) == 'q') $word = substr($word,0,-1); return $word; }} // Used to end the current process, after saving session state. if(! function_exists('killme')) { function killme() { session_write_close(); exit; }} // redirect to another URL and terminate this process. if(! function_exists('goaway')) { function goaway($s) { header("Location: $s"); killme(); }} // Generic XML return // Outputs a basic dfrn XML status structure to STDOUT, with a variable // of $st and an optional text of $message and terminates the current process. if(! function_exists('xml_status')) { function xml_status($st, $message = '') { $xml_message = ((strlen($message)) ? "\t" . xmlify($message) . "\r\n" : ''); if($st) logger('xml_status returning non_zero: ' . $st . " message=" . $message); header( "Content-type: text/xml" ); echo ''."\r\n"; echo "\r\n\t$st\r\n$xml_message\r\n"; killme(); }} // Returns the uid of locally logged in user or false. if(! function_exists('local_user')) { function local_user() { if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid'))) return intval($_SESSION['uid']); return false; }} // Returns contact id of authenticated site visitor or false if(! function_exists('remote_user')) { function remote_user() { if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id'))) return intval($_SESSION['visitor_id']); return false; }} // contents of $s are displayed prominently on the page the next time // a page is loaded. Usually used for errors or alerts. if(! function_exists('notice')) { function notice($s) { $a = get_app(); if($a->interactive) $_SESSION['sysmsg'] .= $s; }} // wrapper around config to limit the text length of an incoming message if(! function_exists('get_max_import_size')) { function get_max_import_size() { global $a; return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 ); }} // escape text ($str) for XML transport // returns escaped text. if(! function_exists('xmlify')) { function xmlify($str) { $buffer = ''; for($x = 0; $x < strlen($str); $x ++) { $char = $str[$x]; switch( $char ) { case "\r" : break; case "&" : $buffer .= '&'; break; case "'" : $buffer .= '''; break; case "\"" : $buffer .= '"'; break; case '<' : $buffer .= '<'; break; case '>' : $buffer .= '>'; break; case "\n" : $buffer .= "\n"; break; default : $buffer .= $char; break; } } $buffer = trim($buffer); return($buffer); }} // undo an xmlify // pass xml escaped text ($s), returns unescaped text if(! function_exists('unxmlify')) { function unxmlify($s) { $ret = str_replace('&','&', $s); $ret = str_replace(array('<','>','"','''),array('<','>','"',"'"),$ret); return $ret; }} // convenience wrapper, reverse the operation "bin2hex" if(! function_exists('hex2bin')) { function hex2bin($s) { return(pack("H*",$s)); }} // Automatic pagination. // To use, get the count of total items. // Then call $a->set_pager_total($number_items); // Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page // Then call paginate($a) after the end of the display loop to insert the pager block on the page // (assuming there are enough items to paginate). // When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage'] // will limit the results to the correct items for the current page. // The actual page handling is then accomplished at the application layer. if(! function_exists('paginate')) { function paginate(&$a) { $o = ''; $stripped = preg_replace('/(&page=[0-9]*)/','',$_SERVER['QUERY_STRING']); $stripped = str_replace('q=','',$stripped); $stripped = trim($stripped,'/'); $url = $a->get_baseurl() . '/' . $stripped; if($a->pager['total'] > $a->pager['itemspage']) { $o .= ''."\r\n"; } return $o; }} // Turn user/group ACLs stored as angle bracketed text into arrays if(! function_exists('expand_acl')) { function expand_acl($s) { // turn string array of angle-bracketed elements into numeric array // e.g. "<1><2><3>" => array(1,2,3); $ret = array(); if(strlen($s)) { $t = str_replace('<','',$s); $a = explode('>',$t); foreach($a as $aa) { if(intval($aa)) $ret[] = intval($aa); } } return $ret; }} // Used to wrap ACL elements in angle brackets for storage if(! function_exists('sanitise_acl')) { function sanitise_acl(&$item) { if(intval($item)) $item = '<' . intval(notags(trim($item))) . '>'; else unset($item); }} // retrieve a "family" of config variables from database to cached storage if(! function_exists('load_config')) { function load_config($family) { global $a; $r = q("SELECT * FROM `config` WHERE `cat` = '%s'", dbesc($family) ); if(count($r)) { foreach($r as $rr) { $k = $rr['k']; $a->config[$family][$k] = $rr['v']; } } }} // get a particular config variable given the family name // and key. Returns false if not set. // $instore is only used by the set_config function // to determine if the key already exists in the DB // If a key is found in the DB but doesn't exist in // local config cache, pull it into the cache so we don't have // to hit the DB again for this item. if(! function_exists('get_config')) { function get_config($family, $key, $instore = false) { global $a; if(! $instore) { if(isset($a->config[$family][$key])) { if($a->config[$family][$key] === '!!') { return false; } return $a->config[$family][$key]; } } $ret = q("SELECT `v` FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1", dbesc($family), dbesc($key) ); if(count($ret)) { $a->config[$family][$key] = $ret[0]['v']; return $ret[0]['v']; } else { $a->config[$family][$key] = '!!'; } return false; }} // Store a config value ($value) in the category ($family) // under the key ($key) // Return the value, or false if the database update failed if(! function_exists('set_config')) { function set_config($family,$key,$value) { global $a; $a->config[$family][$key] = $value; if(get_config($family,$key,true) === false) { $ret = q("INSERT INTO `config` ( `cat`, `k`, `v` ) VALUES ( '%s', '%s', '%s' ) ", dbesc($family), dbesc($key), dbesc($value) ); if($ret) return $value; return $ret; } $ret = q("UPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1", dbesc($value), dbesc($family), dbesc($key) ); if($ret) return $value; return $ret; }} // convert an XML document to a normalised, case-corrected array // used by webfinger if(! function_exists('convert_xml_element_to_array')) { function convert_xml_element_to_array($xml_element, &$recursion_depth=0) { // If we're getting too deep, bail out if ($recursion_depth > 512) { return(null); } if (!is_string($xml_element) && !is_array($xml_element) && (get_class($xml_element) == 'SimpleXMLElement')) { $xml_element_copy = $xml_element; $xml_element = get_object_vars($xml_element); } if (is_array($xml_element)) { $result_array = array(); if (count($xml_element) <= 0) { return (trim(strval($xml_element_copy))); } foreach($xml_element as $key=>$value) { $recursion_depth++; $result_array[strtolower($key)] = convert_xml_element_to_array($value, $recursion_depth); $recursion_depth--; } if ($recursion_depth == 0) { $temp_array = $result_array; $result_array = array( strtolower($xml_element_copy->getName()) => $temp_array, ); } return ($result_array); } else { return (trim(strval($xml_element))); } }} // Given an email style address, perform webfinger lookup and // return the resulting DFRN profile URL, or if no DFRN profile URL // is located, returns an OStatus subscription template (prefixed // with the string 'stat:' to identify it as on OStatus template). // If this isn't an email style address just return $s. // Return an empty string if email-style addresses but webfinger fails, // or if the resultant personal XRD doesn't contain a supported // subscription/friend-request attribute. if(! function_exists('webfinger_dfrn')) { function webfinger_dfrn($s) { if(! strstr($s,'@')) { return $s; } $links = webfinger($s); logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA); if(count($links)) { foreach($links as $link) if($link['@attributes']['rel'] === NAMESPACE_DFRN) return $link['@attributes']['href']; foreach($links as $link) if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB) return 'stat:' . $link['@attributes']['template']; } return ''; }} // Given an email style address, perform webfinger lookup and // return the array of link attributes from the personal XRD file. // On error/failure return an empty array. if(! function_exists('webfinger')) { function webfinger($s) { $host = ''; if(strstr($s,'@')) { $host = substr($s,strpos($s,'@') + 1); } if(strlen($host)) { $tpl = fetch_lrdd_template($host); logger('webfinger: lrdd template: ' . $tpl); if(strlen($tpl)) { $pxrd = str_replace('{uri}', urlencode('acct:'.$s), $tpl); $links = fetch_xrd_links($pxrd); if(! count($links)) { // try with double slashes $pxrd = str_replace('{uri}', urlencode('acct://'.$s), $tpl); $links = fetch_xrd_links($pxrd); } return $links; } } return array(); }} if(! function_exists('lrdd')) { function lrdd($uri) { $a = get_app(); if(strstr($uri,'@')) { return(webfinger($uri)); } else { $html = fetch_url($uri); $headers = $a->get_curl_headers(); $lines = explode("\n",$headers); if(count($lines)) { foreach($lines as $line) { // TODO alter the following regex to support multiple relations (space separated) if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) { $link = $matches[1]; break; } } } if(! isset($link)) { // parse the page of the supplied URL looking for rel links require_once('library/HTML5/Parser.php'); $dom = HTML5_Parser::parse($html); if($dom) { $items = $dom->getElementsByTagName('link'); foreach($items as $item) { $x = $item->getAttribute('rel'); if($x == "lrdd") { $link = $item->getAttribute('href'); break; } } } } if(isset($link)) return(fetch_xrd_links($link)); } return array(); }} // Given a host name, locate the LRDD template from that // host. Returns the LRDD template or an empty string on // error/failure. if(! function_exists('fetch_lrdd_template')) { function fetch_lrdd_template($host) { $tpl = ''; $url = 'http://' . $host . '/.well-known/host-meta' ; $links = fetch_xrd_links($url); if(count($links)) { foreach($links as $link) if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd') $tpl = $link['@attributes']['template']; } if(! strpos($tpl,'{uri}')) $tpl = ''; return $tpl; }} // Given a URL, retrieve the page as an XRD document. // Return an array of links. // on error/failure return empty array. if(! function_exists('fetch_xrd_links')) { function fetch_xrd_links($url) { $xml = fetch_url($url); if (! $xml) return array(); logger('fetch_xrd_links: ' . $xml, LOGGER_DATA); $h = simplexml_load_string($xml); $arr = convert_xml_element_to_array($h); if(isset($arr['xrd']['link'])) { $link = $arr['xrd']['link']; if(! isset($link[0])) $links = array($link); else $links = $link; return $links; } return array(); }} // Convert an ACL array to a storable string if(! function_exists('perms2str')) { function perms2str($p) { $ret = ''; $tmp = $p; if(is_array($tmp)) { array_walk($tmp,'sanitise_acl'); $ret = implode('',$tmp); } return $ret; }} // generate a guaranteed unique (for this domain) item ID for ATOM // safe from birthday paradox if(! function_exists('item_new_uri')) { function item_new_uri($hostname,$uid) { do { $dups = false; $hash = random_string(); $uri = "urn:X-dfrn:" . $hostname . ':' . $uid . ':' . $hash; $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1", dbesc($uri)); if(count($r)) $dups = true; } while($dups == true); return $uri; }} // Generate a guaranteed unique photo ID. // safe from birthday paradox if(! function_exists('photo_new_resource')) { function photo_new_resource() { do { $found = false; $resource = hash('md5',uniqid(mt_rand(),true)); $r = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1", dbesc($resource) ); if(count($r)) $found = true; } while($found == true); return $resource; }} // Take a URL from the wild, prepend http:// if necessary // and check DNS to see if it's real // return true if it's OK, false if something is wrong with it if(! function_exists('validate_url')) { function validate_url(&$url) { if(substr($url,0,4) != 'http') $url = 'http://' . $url; $h = parse_url($url); if(($h) && (checkdnsrr($h['host'], 'ANY'))) { return true; } return false; }} // checks that email is an actual resolvable internet address if(! function_exists('validate_email')) { function validate_email($addr) { if(! strpos($addr,'@')) return false; $h = substr($addr,strpos($addr,'@') + 1); if(($h) && (checkdnsrr($h, 'ANY'))) { return true; } return false; }} // Check $url against our list of allowed sites, // wildcards allowed. If allowed_sites is unset return true; // If url is allowed, return true. // otherwise, return false if(! function_exists('allowed_url')) { function allowed_url($url) { $h = parse_url($url); if(! $h) { return false; } $str_allowed = get_config('system','allowed_sites'); if(! $str_allowed) return true; $found = false; $host = strtolower($h['host']); // always allow our own site if($host == strtolower($_SERVER['SERVER_NAME'])) return true; $fnmatch = function_exists('fnmatch'); $allowed = explode(',',$str_allowed); if(count($allowed)) { foreach($allowed as $a) { $pat = strtolower(trim($a)); if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) { $found = true; break; } } } return $found; }} // check if email address is allowed to register here. // Compare against our list (wildcards allowed). // Returns false if not allowed, true if allowed or if // allowed list is not configured. if(! function_exists('allowed_email')) { function allowed_email($email) { $domain = strtolower(substr($email,strpos($email,'@') + 1)); if(! $domain) return false; $str_allowed = get_config('system','allowed_email'); if(! $str_allowed) return true; $found = false; $fnmatch = function_exists('fnmatch'); $allowed = explode(',',$str_allowed); if(count($allowed)) { foreach($allowed as $a) { $pat = strtolower(trim($a)); if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) { $found = true; break; } } } return $found; }} // Format the like/dislike text for a profile item // $cnt = number of people who like/dislike the item // $arr = array of pre-linked names of likers/dislikers // $type = one of 'like, 'dislike' // $id = item id // returns formatted text if(! function_exists('format_like')) { function format_like($cnt,$arr,$type,$id) { $o = ''; if($cnt == 1) $o .= $arr[0] . (($type === 'like') ? t(' likes this.') : t(' doesn\'t like this.')) . EOL ; else { $o .= '' . $cnt . ' ' . t('people') . ' ' . (($type === 'like') ? t('like this.') : t('don\'t like this.')) . EOL ; $total = count($arr); if($total >= MAX_LIKERS) $arr = array_slice($arr, 0, MAX_LIKERS - 1); if($total < MAX_LIKERS) $arr[count($arr)-1] = t('and') . ' ' . $arr[count($arr)-1]; $str = implode(', ', $arr); if($total >= MAX_LIKERS) $str .= t(', and ') . $total - MAX_LIKERS . t(' other people'); $str .= (($type === 'like') ? t(' like this.') : t(' don\'t like this.')); $o .= "\t" . ''; } return $o; }} // wrapper to load a view template, checking for alternate // languages before falling back to the default if(! function_exists('load_view_file')) { function load_view_file($s) { $b = basename($s); $d = dirname($s); $lang = get_config('system','language'); if($lang === false) $lang = 'en'; if(file_exists("$d/$lang/$b")) return file_get_contents("$d/$lang/$b"); return file_get_contents($s); }} // for html,xml parsing - let's say you've got // an attribute foobar="class1 class2 class3" // and you want to find out if it contains 'class3'. // you can't use a normal sub string search because you // might match 'notclass3' and a regex to do the job is // possible but a bit complicated. // pass the attribute string as $attr and the attribute you // are looking for as $s - returns true if found, otherwise false if(! function_exists('attribute_contains')) { function attribute_contains($attr,$s) { $a = explode(' ', $attr); if(count($a) && in_array($s,$a)) return true; return false; }} if(! function_exists('logger')) { function logger($msg,$level = 0) { $debugging = get_config('system','debugging'); $loglevel = intval(get_config('system','loglevel')); $logfile = get_config('system','logfile'); if((! $debugging) || (! $logfile) || ($level > $loglevel)) return; @file_put_contents($logfile, datetime_convert() . ':' . session_id() . ' ' . $msg . "\n", FILE_APPEND); return; }} if(! function_exists('activity_match')) { function activity_match($haystack,$needle) { if(($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle,NAMESPACE_ACTIVITY_SCHEMA))) return true; return false; }} // Pull out all #hashtags and @person tags from $s; // We also get @person@domain.com - which would make // the regex quite complicated as tags can also // end a sentence. So we'll run through our results // and strip the period from any tags which end with one. // Returns array of tags found, or empty array. if(! function_exists('get_tags')) { function get_tags($s) { $ret = array(); if(preg_match_all('/([@#][^ \x0D\x0A,:?]*)([ \x0D\x0A,:?]|$)/',$s,$match)) { foreach($match[1] as $match) { if(strstr($match,"]")) { // we might be inside a bbcode color tag - leave it alone continue; } if(substr($match,-1,1) === '.') $ret[] = substr($match,0,-1); else $ret[] = $match; } } return $ret; }} // quick and dirty quoted_printable encoding if(! function_exists('qp')) { function qp($s) { return str_replace ("%","=",rawurlencode($s)); }} if(! function_exists('like_puller')) { function like_puller($a,$item,&$arr,$mode) { $url = ''; $sparkle = ''; $verb = (($mode === 'like') ? ACTIVITY_LIKE : ACTIVITY_DISLIKE); if((activity_match($item['verb'],$verb)) && ($item['id'] != $item['parent'])) { $url = $item['author-link']; if(($item['network'] === 'dfrn') && (! $item['self']) && ($item['author-link'] == $item['url'])) { $url = $a->get_baseurl() . '/redir/' . $item['contact-id']; $sparkle = ' class="sparkle" '; } if(! ((isset($arr[$item['parent'] . '-l'])) && (is_array($arr[$item['parent'] . '-l'])))) $arr[$item['parent'] . '-l'] = array(); if(! isset($arr[$item['parent']])) $arr[$item['parent']] = 1; else $arr[$item['parent']] ++; $arr[$item['parent'] . '-l'][] = '' . $item['author-name'] . ''; } return; }} if(! function_exists('get_mentions')) { function get_mentions($item) { $o = ''; if(! strlen($item['tag'])) return $o; $arr = explode(',',$item['tag']); foreach($arr as $x) { $matches = null; if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) $o .= "\t\t" . '' . "\r\n"; } return $o; }} if(! function_exists('contact_block')) { function contact_block() { $o = ''; $a = get_app(); if((! is_array($a->profile)) || ($a->profile['hide-friends'])) return $o; $r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0", intval($a->profile['uid']) ); if(count($r)) { $total = intval($r[0]['total']); } if(! $total) { $o .= '

' . t('No contacts') . '

'; return $o; } $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0 ORDER BY RAND() LIMIT 24", intval($a->profile['uid']) ); if(count($r)) { $o .= '

' . $total . ' ' . t('Contacts') . '

'; foreach($r as $rr) { $redirect_url = $a->get_baseurl() . '/redir/' . $rr['id']; if(local_user() && ($rr['uid'] == local_user()) && ($rr['network'] === 'dfrn')) { $url = $redirect_url; $sparkle = ' sparkle'; } else { $url = $rr['url']; $sparkle = ''; } $o .= '

' . "\r\n"; } $o .= '

'; $o .= '

' . t('View Contacts') . '

'; } return $o; }} if(! function_exists('search')) { function search($s) { $a = get_app(); $o = ''; return $o; }} if(! function_exists('valid_email')) { function valid_email($x){ if(preg_match('/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/',$x)) return true; return false; }} if(! function_exists('gravatar_img')) { function gravatar_img($email) { $size = 175; $opt = 'identicon'; // psuedo-random geometric pattern if not found $rating = 'pg'; $hash = md5(trim(strtolower($email))); $url = 'http://www.gravatar.com/avatar/' . $hash . '.jpg' . '?s=' . $size . '&d=' . $opt . '&r=' . $rating; logger('gravatar: ' . $email . ' ' . $url); return $url; }} if(! function_exists('aes_decrypt')) { function aes_decrypt($val,$ky) { $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"; for($a=0;$a=0 and ord(substr($dec, strlen($dec)-1,1))<=16)? chr(ord( substr($dec,strlen($dec)-1,1))):null)); }} if(! function_exists('aes_encrypt')) { function aes_encrypt($val,$ky) { $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"; for($a=0;$a$1', $s); return($s); }}