[Summary view] [Print] [Text view]

   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 [email protected] 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    $Id$
  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, the value should be a string",
  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  }