1 <?php

     2 /**

     3  * Zend Framework

     4  *

     5  * LICENSE

     6  *

     7  * This source file is subject to the new BSD license that is bundled

     8  * with this package in the file LICENSE.txt.

     9  * It is also available through the world-wide-web at this URL:

    10  * http://framework.zend.com/license/new-bsd

    11  * If you did not receive a copy of the license and are unable to

    12  * obtain it through the world-wide-web, please send an email

    13  * to license@zend.com so we can send you a copy immediately.

    14  *

    15  * @category   Zend

    16  * @package    Zend_Validate

    17  * @subpackage Sitemap

    18  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    19  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    20  * @version    $Id: Lastmod.php 22668 2010-07-25 14:50:46Z thomas $

    21  */

    22 

    23 /**

    24  * @see Zend_Validate_Abstract

    25  */

    26 require_once 'Zend/Validate/Abstract.php';

    27 

    28 /**

    29  * Validates whether a given value is valid as a sitemap <lastmod> value

    30  *

    31  * @link       http://www.sitemaps.org/protocol.php Sitemaps XML format

    32  *

    33  * @category   Zend

    34  * @package    Zend_Validate

    35  * @subpackage Sitemap

    36  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    37  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    38  */

    39 class Zend_Validate_Sitemap_Lastmod extends Zend_Validate_Abstract

    40 {

    41     /**

    42      * Regular expression to use when validating

    43      *

    44      */

    45     const LASTMOD_REGEX = '/^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])(T([0-1][0-9]|2[0-3])(:[0-5][0-9])(:[0-5][0-9])?(\\+|-)([0-1][0-9]|2[0-3]):[0-5][0-9])?$/';

    46 

    47     /**

    48      * Validation key for not valid

    49      *

    50      */

    51     const NOT_VALID = 'sitemapLastmodNotValid';

    52     const INVALID   = 'sitemapLastmodInvalid';

    53 

    54     /**

    55      * Validation failure message template definitions

    56      *

    57      * @var array

    58      */

    59     protected $_messageTemplates = array(

    60         self::NOT_VALID => "'%value%' is no valid sitemap lastmod",

    61         self::INVALID   => "Invalid type given. String expected",

    62     );

    63 

    64     /**

    65      * Validates if a string is valid as a sitemap lastmod

    66      *

    67      * @link http://www.sitemaps.org/protocol.php#lastmoddef <lastmod>

    68      *

    69      * @param  string  $value  value to validate

    70      * @return boolean

    71      */

    72     public function isValid($value)

    73     {

    74         if (!is_string($value)) {

    75             $this->_error(self::INVALID);

    76             return false;

    77         }

    78 

    79         $this->_setValue($value);

    80         $result = @preg_match(self::LASTMOD_REGEX, $value);

    81         if ($result != 1) {

    82             $this->_error(self::NOT_VALID);

    83             return false;

    84         }

    85 

    86         return true;

    87     }

    88 }