public function Authenticate()
	{
		$user = isset($_POST['userName'])     ? $_POST['userName']     : '';
		$pass = isset($_POST['userPassword']) ? $_POST['userPassword'] : '';

		$payload = array('Request' 	    => 'UserSignIn',
						 'userName' 	=> $user,
						 'userPassword' => $pass);


		// Default error - if json_decode returns false then
		// this status will remain.
		$msg 	= 'Error parsing API response.';
		$status = 'ERROR';

		// Invalid request, back to the sign in page with ya
		if( ! $user || ! $pass )
		{
			$response = false;
			$msg = 'Please provide both a username and password.';
		}

        $cURLOptions = array(CURLOPT_URL            => DRAWBRIDGE_API_REQUEST_URI,
                             CURLOPT_POST           => true,
                             CURLOPT_POSTFIELDS     => http_build_query($payload),
                             CURLOPT_RETURNTRANSFER => true);

        //print_r($cURLOptions);

        try
        {
			$db = Factory::GetDrawbridge();
            $response = $db->Request($cURLOptions, 'JSON');
        }
        catch(Exception $e)
        {
			$response = false;
            $msg = $e->getMessage();
			//throw new Exception(sprintf("API Error: %s", $e->getMessage()));
            //var_dump($response);
        }

       //echo Util::Debug($response);

		// These conditions indicate that the request was
		// successful
		if( $response !== false      &&
		    isset($response->Status) &&
			isset($response->Message)
		  )
		{
			// Set message
			$msg 	      = $response->Message;
			$status       = $response->Status;
		}

		//echo Util::Debug($msg);
		//echo Util::Debug($status);

		$message = Factory::GetMessage();
		$message->Add('ResponseMessage', $msg, 'Notice');
		$message->Add('ResponseStatus', $status, 'Notice');
		$message->Add('Response', $response, 'Notice');

		$message->Add('signInTimestamp', time(), 'Info');
		$message->Add('UserInfo', $response->UserInfo, 'Info');
		$message->Add('signInTime', date('r'), 'Info');


		$location = ( $status == 'OK' ) ? '/' : '/user/signIn';

		header(sprintf('Location: %s', $location));
		die;
	}