<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

if ( ! function_exists('makeSEOurl')) {

    function makeSEOurl($string) {
	    //Unwanted:  {UPPERCASE} ; / ? : @ & = + $ , . ! ~ * ' ( )
	    $string = strtolower(trim($string));
	    //Strip any unwanted characters
	    $string = str_replace('/','-',$string);
	    $string = preg_replace("/[^a-z0-9_\s-]/", "", $string);
	    //Clean multiple dashes or whitespaces
	    $string = preg_replace("/[\s-]+/", " ", $string);
	    //Convert whitespaces and underscore to dash
	    $string = preg_replace("/[\s_]/", "-", $string);
	    return $string;
  	} 
}
if ( ! function_exists('ccEncrypt')) {
	function ccEncrypt($password, $time){
	    //appending padding characters
	    $newPass = rand(0,9) . rand(0,9);
	    $c = 1;
	    while ($c < 15 && (int)substr($newPass,$c-1,1) + 1 != (int)substr($newPass,$c,1)){
	        $newPass .= rand(0,9);
	        $c++;
	    }
	    $newPass .= $password;
	    
	    //applying XOR
	    $newSeed = md5(SEED . $time);
	    $passLength = strlen($newPass);
	    while (strlen($newSeed) < $passLength) $newSeed.= $newSeed;
	    $result = (substr($newPass,0,$passLength) ^ substr($newSeed,0,$passLength));
	    
	    return base64_encode($result);
	}
}

if ( ! function_exists('ccDecrypt')) {
	function ccDecrypt($password, $time){
	    $b64decoded = base64_decode($password);
	    
	    //applying XOR
	    $newSeed = md5(SEED . $time);
	    $passLength = strlen($b64decoded);
	    while (strlen($newSeed) < $passLength) $newSeed.= $newSeed;
	    $original_password = (substr($b64decoded,0,$passLength) ^ substr($newSeed,0,$passLength));
	    
	    //removing padding
	    $c = 1;
	    while($c < 15 && (int)substr($original_password,$c-1,1) + 1 != (int)substr($original_password,$c,1)){
	        $c++;
	    }
	    return substr($original_password,$c+1);
	}
}