<?php
	session_start();
	require_once 'config.ini.php';
	require_once 'cassette.front.php';
		
	# default functions
	function e($escape){return mysql_real_escape_string($escape);}
	function esc($escape){return mysql_real_escape_string($escape);}
	function dp($post){return preg_replace("/-/"," ",$post);}
	function vl($url){
		$pattern 		= array("/ä/","/Ä/","/ö/","/Ö/","/ü/","/Ü/","/ß/");
		$replace 		= array("ae","Ae","oe","Oe","ue","Ue","ss");
		
		$valid_german 	= preg_replace($pattern,$replace,$url);
		
		return preg_replace("/[-]+/","-",preg_replace("/[^0-9a-zA-Z-#\/]/",'-', trim($valid_german)));
		
		//return preg_replace("/[-]+/","-",preg_replace("/[^0-9a-zA-Z-#\/]/",'-', trim($url)));
	}
	function reverse_vl($url){
			
		$pattern 		= array("/ae/","/Ae/","/oe/","/Oe/","/ue/","/Ue/","/ss/");			
		$replace 		= array("ä","Ä","ö","Ö","ü","Ü","ß");
		return $valid_german 	= preg_replace($pattern,$replace,$url);
		
	//	return preg_replace("/[-]+/","-",preg_replace("/[^0-9a-zA-Z-#\/]/",'-', trim($url)));
	}
	
	function vl2($url){return urlencode(preg_replace("/ /","-",$url));}
	function vn($url){return preg_replace("/[^0-9a-zA-Z- ]/",'_', trim($url));}
	
	function formatDate($string){return strftime('%d %b %Y',strtotime($string));}
	function makeIntro($text,$length=null,$addParagraphtags=null,$sign=null){
		
		$text = preg_replace('/<(h1|h2|h3|h4)[^>]*>([\s\S]*?)<\/(h1|h2|h3|h4)[^>]*>/', '', $text);
		
		$sign 			= ($sign == null) ? " [..]" : $sign;
		$textlen 		= strlen(strip_tags($text));
		if($textlen < $length && $length!=null) $return = strip_tags($text);
		else{
			$cropAfter	= ($length != null) ? $length : 115;
			$intro		= substr(strip_tags($text), 0, $cropAfter);
			$ls 		= strrpos($intro, " ");
			$return 	= substr($intro, 0, $ls).$sign;
			
		}
		$return = ($addParagraphtags == null) ? $return : "<p>".$return."</p>";
		return $return;
		
	}
	function css($str){
		return preg_replace("/ /","",strtolower($str));
	}
	function testImage($w=400,$h=250){
		return '<img src="http://placehold.it/400x250/'.random_color().'/000000/">';
		
	}
	function random_color_part() {
	    return str_pad( dechex( mt_rand( 0, 255 ) ), 2, '0', STR_PAD_LEFT);
	}
	function random_color() {
   		return random_color_part() . random_color_part() . random_color_part();
	}
	function is_odd($number) {
   		return $number & 1; // 0 = even, 1 = odd
	}
	function formatTime($string,$type){
		switch($type){
			case 'h':			
				$date = strftime('%e %B %Y',strtotime($string));
			break;

		}

		// return date and time
		return ucfirst($date);
	}

	function d($str){
		echo "<pre>";
		print_r($str);
		echo "</pre>";
	}
	
	function login_check($login_table) {
		
	    // Check if all session variables are set 
	    if (isset($_SESSION['user_id'], $_SESSION['username'], $_SESSION['login_string'])) {
			
	        $user_id 		= $_SESSION['user_id'];
	        $login_string 	= $_SESSION['login_string'];
        	$username 		= $_SESSION['username'];

	        // Get the user-agent string of the user.
	        $user_browser 	= $_SERVER['HTTP_USER_AGENT'];
	
			$q = mysql_query("SELECT * FROM `$login_table` WHERE `unique_id` = '".e($user_id)."'")or die(mysql_error());
			$r = mysql_fetch_array($q);
	

			$login_check = hash('sha512', $r["wachtwoord"] . $user_browser);
			
	       	if ($login_check == $login_string) {
				// Logged In!!!! 
				return true;
			}else{
	            // Not logged in 
	            return false;
			}
	          
		}else return false;

	}
	function sec_session_start() {

	    $session_name = 'sec_session_id';   // Set a custom session name
	    $secure = SECURE;
	 
	   // This stops JavaScript being able to access the session id.
	    $httponly = true;
	 
	   // Forces sessions to only use cookies.
	    if (ini_set('session.use_only_cookies', 1) === FALSE) {
	       exit();
	   	}
	
	    // Gets current cookies params.
	    $cookieParams = session_get_cookie_params();
		

	    session_set_cookie_params($cookieParams["lifetime"],
	        $cookieParams["path"], 
	        $cookieParams["domain"], 
	        $secure,
	        $httponly);
	    // Sets the session name to the one set above.

	    session_name($session_name);
	    session_start();            // Start the PHP session 
	    session_regenerate_id(true);    // regenerated the session, delete the old one. 
	}

	function outputSafe($string){
		return htmlspecialchars($string, ENT_QUOTES, 'UTF-8');
	}

?>