<?php
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 * 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@magento.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magento.com for more information.
 *
 * @category    Mage
 * @package     Mage_Core
 * @copyright  Copyright (c) 2006-2016 X.commerce, Inc. and affiliates (http://www.magento.com)
 * @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Validate URL
 *
 * @category   Mage
 * @package    Mage_Core
 * @author     Magento Core Team <core@magentocommerce.com>
 */
class Mage_Core_Model_Url_Validator extends Zend_Validate_Abstract
{
    /**#@+
     * Error keys
     */
    const INVALID_URL = 'invalidUrl';
    /**#@-*/

    /**
     * Object constructor
     */
    public function __construct()
    {
        // set translated message template
        $this->setMessage(Mage::helper('core')->__("Invalid URL '%value%'."), self::INVALID_URL);
    }

    /**
     * Validation failure message template definitions
     *
     * @var array
     */
    protected $_messageTemplates = array(
        self::INVALID_URL => "Invalid URL '%value%'.",
    );

    /**
     * Validate value
     *
     * @param string $value
     * @return bool
     */
    public function isValid($value)
    {
        $this->_setValue($value);

        //check valid URL
        if (!Zend_Uri::check($value)) {
            $this->_error(self::INVALID_URL);
            return false;
        }

        return true;
    }
}