<?php

namespace {
    /**
     * Zend Framework
     *
     * LICENSE
     *
     * This source file is subject to the new BSD license that is bundled
     * with this package in the file LICENSE.txt.
     * It is also available through the world-wide-web at this URL:
     * http://framework.zend.com/license/new-bsd
     * If you did not receive a copy of the license and are unable to
     * obtain it through the world-wide-web, please send an email
     * to license@zend.com so we can send you a copy immediately.
     *
     * @category   Zend
     * @package    Zend_Session
     * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
     * @license    http://framework.zend.com/license/new-bsd     New BSD License
     * @version    $Id: HttpUserAgent.php 23775 2011-03-01 17:25:24Z ralph $
     * @since      Preview Release 0.2
     */
    /**
     * @see Zend_Session_Validator_Abstract
     */
    // require_once 'Zend/Session/Validator/Abstract.php';
    /**
     * Zend_Session_Validator_HttpUserAgent
     *
     * @category   Zend
     * @package    Zend_Session
     * @subpackage Validator
     * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
     * @license    http://framework.zend.com/license/new-bsd     New BSD License
     */
    class Zend_Session_Validator_HttpUserAgent extends \Zend_Session_Validator_Abstract
    {
        /**
         * Setup() - this method will get the current user agent and store it in the session
         * as 'valid data'
         *
         * @return void
         */
        public function setup()
        {
            $this->setValidData(isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : null);
        }
        /**
         * Validate() - this method will determine if the current user agent matches the
         * user agent we stored when we initialized this variable.
         *
         * @return bool
         */
        public function validate()
        {
            $currentBrowser = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : null;
            return $currentBrowser === $this->getValidData();
        }
    }
}