1579 lines
		
	
	
		
			43 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			1579 lines
		
	
	
		
			43 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
 | |
| 
 | |
| set_time_limit(0);
 | |
| 
 | |
| define ( 'BUILD_ID',               1021   );
 | |
| define ( 'DFRN_PROTOCOL_VERSION',  '2.0'  );
 | |
| 
 | |
| define ( 'EOL',                    "<br />\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. 
 | |
| // 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) {
 | |
| 	// protect against :<> with high-bit set
 | |
| 	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 <status> variable 
 | |
| // of $st and an optional text <message> of $message and terminates the current process. 
 | |
| 
 | |
| if(! function_exists('xml_status')) {
 | |
| function xml_status($st, $message = '') {
 | |
| 
 | |
| 	$xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
 | |
| 
 | |
| 	if($st)
 | |
| 		logger('xml_status returning non_zero: ' . $st . " message=" . $message);
 | |
| 
 | |
| 	header( "Content-type: text/xml" );
 | |
| 	echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
 | |
| 	echo "<result>\r\n\t<status>$st</status>\r\n$xml_message</result>\r\n";
 | |
| 	killme();
 | |
| }}
 | |
| 
 | |
| // Returns the uid of locally logged in user or false.
 | |
| 
 | |
| if(! function_exists('local_user')) {
 | |
| function local_user() {
 | |
| 	if((x($_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']) {
 | |
| 		$o .= '<div class="pager">';
 | |
|     		if($a->pager['page'] != 1)
 | |
| 			$o .= '<span class="pager_prev">'."<a href=\"$url".'&page='.($a->pager['page'] - 1).'">' . t('prev') . '</a></span> ';
 | |
| 
 | |
| 		$o .=  "<span class=\"pager_first\"><a href=\"$url"."&page=1\">" . t('first') . "</a></span> ";
 | |
| 
 | |
|     		$numpages = $a->pager['total'] / $a->pager['itemspage'];
 | |
| 
 | |
| 		$numstart = 1;
 | |
|     		$numstop = $numpages;
 | |
| 
 | |
|     		if($numpages > 14) {
 | |
|       			$numstart = (($pagenum > 7) ? ($pagenum - 7) : 1);
 | |
|       			$numstop = (($pagenum > ($numpages - 7)) ? $numpages : ($numstart + 14));
 | |
|     		}
 | |
|    
 | |
| 		for($i = $numstart; $i <= $numstop; $i++){
 | |
|       			if($i == $a->pager['page'])
 | |
| 				$o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
 | |
| 			else
 | |
| 				$o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
 | |
| 			$o .= '</span> ';
 | |
| 		}
 | |
| 
 | |
| 		if(($a->pager['total'] % $a->pager['itemspage']) != 0) {
 | |
| 			if($i == $a->pager['page'])
 | |
| 				$o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
 | |
| 			else
 | |
| 				$o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
 | |
| 			$o .= '</span> ';
 | |
| 		}
 | |
| 
 | |
| 		$lastpage = (($numpages > intval($numpages)) ? intval($numpages)+1 : $numpages);
 | |
| 		$o .= "<span class=\"pager_last\"><a href=\"$url"."&page=$lastpage\">" . t('last') . "</a></span> ";
 | |
| 
 | |
|     		if(($a->pager['total'] - ($a->pager['itemspage'] * $a->pager['page'])) > 0)
 | |
| 			$o .= '<span class="pager_next">'."<a href=\"$url"."&page=".($a->pager['page'] + 1).'">' . t('next') . '</a></span>';
 | |
| 		$o .= '</div>'."\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] === '!<unset>!') {
 | |
| 				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][$key] = '!<unset>!';
 | |
| 	}
 | |
| 	return false;
 | |
| }}
 | |
| 
 | |
| // Store a config value ($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 .= '<span class="fakelink" onclick="openClose(\'' . $type . 'list-' . $id . '\');" >' 
 | |
| 			. $cnt . ' ' . t('people') . '</span> ' . (($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" . '<div id="' . $type . 'list-' . $id . '" style="display: none;" >' . $str . '</div>';
 | |
| 	}
 | |
| 	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'][] = '<a href="'. $url . '"'. $sparkle .'>' . $item['author-name'] . '</a>';
 | |
| 	}
 | |
| 	return;
 | |
| }}
 | |
| 
 | |
| if(! function_exists('get_mentions')) {
 | |
| function get_mentions($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" . '<link rel="mentioned" href="' . $matches[1] . '" />' . "\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 .= '<h4 class="contact-h4">' . t('No contacts') . '</h4>';
 | |
| 		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 .= '<h4 class="contact-h4">' . $total . ' ' . t('Contacts') . '</h4><div id="contact-block">';
 | |
| 		foreach($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 .= '<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";
 | |
| 		}
 | |
| 		$o .= '</div><div id="contact-block-end"></div>';
 | |
| 		$o .=  '<div id="viewcontacts"><a id="viewcontacts-link" href="viewcontacts/' . $a->profile['nickname'] . '">' . t('View Contacts') . '</a></div>';
 | |
| 		
 | |
| 	}
 | |
| 	return $o;
 | |
| 
 | |
| }}
 | |
| 
 | |
| if(! function_exists('search')) {
 | |
| function search($s) {
 | |
| 	$a = get_app();
 | |
| 	$o  = '<div id="search-box">';
 | |
| 	$o .= '<form action="' . $a->get_baseurl() . '/search' . '" method="get" >';
 | |
| 	$o .= '<input type="text" name="search" id="search-text" value="' . $s .'" />';
 | |
| 	$o .= '<input type="submit" name="submit" id="search-submit" value="' . t('Search') . '" />'; 
 | |
| 	$o .= '</form></div>';
 | |
| 	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;$a<strlen($ky);$a++)
 | |
|       $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
 | |
|     $mode = MCRYPT_MODE_ECB;
 | |
|     $enc = MCRYPT_RIJNDAEL_128;
 | |
|     $dec = @mcrypt_decrypt($enc, $key, $val, $mode, @mcrypt_create_iv( @mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM ) );
 | |
|     return rtrim($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));
 | |
| }}
 | |
| 
 | |
| 
 | |
| 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;$a<strlen($ky);$a++)
 | |
|       $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
 | |
|     $mode=MCRYPT_MODE_ECB;
 | |
|     $enc=MCRYPT_RIJNDAEL_128;
 | |
|     $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
 | |
|     return mcrypt_encrypt($enc, $key, $val, $mode, mcrypt_create_iv( mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM));
 | |
| }} 
 | |
| 
 | |
| if(! function_exists('linkify')) {
 | |
| function linkify($s) {
 | |
| 	$s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%]*)/", ' <a href="$1" >$1</a>', $s);
 | |
| 	return($s);
 | |
| }} |