<?php
/**
* 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_Validate
* @subpackage Sitemap
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
*/

/**
* @see Zend_Validate_Abstract
*/
#require_once 'Zend/Validate/Abstract.php';

/**
* @see Zend_Uri
*/
#require_once 'Zend/Uri.php';

/**
* Validates whether a given value is valid as a sitemap <loc> value
*
* @link http://www.sitemaps.org/protocol.php Sitemaps XML format
*
* @category Zend
* @package Zend_Validate
* @subpackage Sitemap
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Validate_Sitemap_Loc extends Zend_Validate_Abstract
{
/**
* Validation key for not valid
*
*/
const NOT_VALID = 'sitemapLocNotValid';
const INVALID = 'sitemapLocInvalid';

/**
* Validation failure message template definitions
*
* @var array
*/
protected $_messageTemplates = array(
self::NOT_VALID => "'%value%' is not a valid sitemap location",
self::INVALID => "Invalid type given. String expected",
);

/**
* Validates if a string is valid as a sitemap location
*
* @link http://www.sitemaps.org/protocol.php#locdef <loc>
*
* @param string $value value to validate
* @return boolean
*/
public function isValid($value)
{
if (!is_string($value)) {
$this->_error(self::INVALID);
return false;
}

$this->_setValue($value);
$result = Zend_Uri::check($value);
if ($result !== true) {
$this->_error(self::NOT_VALID);
return false;
}

return true;
}
}