OpenNebula server_cipher example

require_once BASE_PATH . "lib/crypt/AES.php";

DEFINE ("AES_256_CBC_KEYSIZE", 32);
DEFINE ("AES_256_CBC_IVSIZE", 16);

class CloudTest extends PHPUnit_Framework_TestCase {
        protected $f3;
        protected $oca_base_url;
        protected $oca_username;
        protected $oca_password;
        protected $user_id;

        function setUp() {
                $this->f3 = base::instance();
                $this->oca_base_url = $this->f3->get('cloud_service');
                $this->oca_username = $this->f3->get('cloud_username');
                $this->oca_password = $this->f3->get('cloud_password');
                $this->user_id= "guest_user_id";
        }

    /** return expiration time .. should be better */
        function giveExpire() {
                return (string)(time()+3600);
        }

    /** return a key from a truncated SHA1 hexhash */
        function giveKey() {
                return substr(sha1($this->oca_password), 0, AES_256_CBC_KEYSIZE);
        }

         /** return an Auth Token for OpenNebula
         */
        function getAuthToken() {
                $key = $this->giveKey();
                $data = $this->oca_username . ":" . $this->user_id. ":" . $this->giveExpire();
                $cipher = new Crypt_AES();
                $cipher->setKey($key);
        // WARNING: OpenNebula does not set any IV
                return $this->oca_username . ":" . $this->user_id. ":" . base64_encode($cipher->encrypt($data));
        }

        /**
         * @group XMLRPC
         */
        function test_request_rpc_1() {
                // build userAuth
                $userAuth =     $this->getAuthToken();
                $request = xmlrpc_encode_request("one.vmpool.info", array($userAuth, -2, -1, -1 , -1));
                $content = stream_context_create(array(
                                "http" => array("method" => "POST",
                                                "header" => "Content-Type: text/xml",
                                                "content" => $request
                                )
                ));
                $file = file_get_contents($this->oca_base_url, false, $content);
                $response = xmlrpc_decode($file);
                $this->assertTrue(isset($response), "Unset reply from RPCServer");
                $this->assertTrue($response[0], "Invalid reply from RPCServer");
        }
}