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   1  <?php
   2  /*
   3   * Limb PHP Framework
   4   *
   5   * @link http://limb-project.com 
   6   * @copyright  Copyright &copy; 2004-2007 BIT(http://bit-creative.com)
   7   * @license    LGPL http://www.gnu.org/copyleft/lesser.html 
   8   */
   9  lmb_require('limb/validation/src/rule/lmbDomainRule.class.php');
  10  
  11  /**
  12   * Checks that field value is a valid Url.
  13   * @package validation
  14   * @version $Id: lmbUrlRule.class.php 5945 2007-06-06 08:31:43Z pachanga $
  15   */
  16  class lmbUrlRule extends lmbDomainRule
  17  {
  18    /**

  19    * @var array List of allowable schemes e.g. array('http', 'ftp');

  20    */
  21    protected $allowable_schemes =  array();
  22  
  23    /**

  24    * Constructor.

  25    * @param string Field name

  26    * @param array List of allowable schemes

  27    */
  28    function __construct($field_name, $allowable_schemes = array(), $custom_error = '')
  29    {
  30      parent :: __construct($field_name, $custom_error);
  31  
  32      $this->allowable_schemes = $allowable_schemes ? $allowable_schemes : array();
  33    }
  34  
  35    function check($value)
  36    {
  37      $url = @parse_url($value);
  38      if (isset($url['scheme']) && isset($url['host']) &&
  39          ($url['scheme'] == 'http' || $url['scheme'] == 'ftp'))
  40      {
  41        parent::check($url['host']);
  42      }
  43  
  44      if (!sizeof($this->allowable_schemes))
  45        return;
  46  
  47      if (!isset($url['scheme']))
  48      {
  49        $this->error('Please specify a scheme for {Field}.');
  50        return;
  51      }
  52  
  53      if (!in_array($url['scheme'], $this->allowable_schemes))
  54        $this->error('{Field} may not use {scheme}.', array('scheme' => $url['scheme']));
  55    }
  56  }
  57  ?>