source: Dev/trunk/classes/UserDatabaseInterface.php @ 44

<?php

// Survey class as intermediate for storing data from the site to the RDF database 
require_once 'rdfConstants.php';

// Include RAP Library to write RDF files
include(RDFAPI_INCLUDE_DIR . "RDFAPI.php");

class UserDatabaseInterface
{
        protected $key = 'CPSsecretKey';
        
        protected $userRDFWriter;
        protected $userRDFReader;
        
        public function __construct()
        {
                $this->userRDFWriter = new UserRDFWriter();
                $this->userRDFReader = new UserRDFReader();
        }
        
        public function addNewUser($userInfo)
        {
                $userName = $userInfo['username'];
                $userPassword = $this->RIJNDAEL_encrypt($userInfo['password']);
                
                $this->userRDFWriter->addNewUser($userName, $userPassword);
                $this->userRDFWriter->saveUsers();
        }
        
        public function checkUserName($userName)
        {
                $result = false;
                
                $resultUser = $this->userRDFReader->getUserNames();
                
                if ($resultUser != null)
                {
                        foreach($resultUser as $user)
                        {
                                $name = substr($user['?name'],9,strlen($user['?name'])-11);
                                if(!strcmp($name ,$userName))
                                {
                                        $result = true;
                                }
                        }
                }
                
                return $result;
        }
        
        public function checkUserPassword($userInfo)
        {
                $result = false;
        
                $userName = $userInfo['username'];
                $userPassword = $userInfo['password'];
                
                $encryptedPasswordLiteral = $this->userRDFReader->getUserPassword($userName);
                $encryptedPassword = substr($encryptedPasswordLiteral[0]['?password'],9,strlen($encryptedPasswordLiteral[0]['?password'])-11);
                                
                if(!strcmp($this->RIJNDAEL_encrypt($userPassword),$encryptedPassword))
                        $result = true;
                
                return $result;
        }
        
        protected function RIJNDAEL_encrypt($text)
        {
                $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
                $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
                
                return base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $this->key, $text, MCRYPT_MODE_ECB, $iv)); 
        }

}

?>