1. sfValidatorUrl.class.php
  2. /**
 * sfValidatorUrl validates Urls.
 *
 * @package    symfony
 * @subpackage validator
 * @author     Fabien Potencier 
 * @version    SVN: $Id: sfValidatorUrl.class.php 22149 2009-09-18 14:09:53Z Kris.Wallsmith $
 */
  3. class sfValidatorUrl extends sfValidatorRegex
  4. {
  5.   const REGEX_URL_FORMAT = '~^
  6.       (%s)://                                 # protocol
  7.       (
  8.         ([a-z0-9-]+\.)+[a-z]{2,6}             # a domain name
  9.           |                                   #  or
  10.         \d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}    # a IP address
  11.       )
  12.       (:[0-9]+)?                              # a port (optional)
  13.       (/?|/\S+)                               # a /, nothing or a / with something
  14.     $~ix';
  16.   /**
  17.    * Available options:
  18.    *
  19.    *  * protocols: An array of acceptable URL protocols (http, https, ftp and ftps by default)
  20.    *
  21.    * @param array $options   An array of options
  22.    * @param array $messages  An array of error messages
  23.    *
  24.    * @see sfValidatorRegex
  25.    */
  26.   protected function configure($options = array(), $messages = array())
  27.   {
  28.     parent::configure($options, $messages);
  30.     $this->addOption('protocols', array('http', 'https', 'ftp', 'ftps'));
  31.     $this->setOption('pattern', new sfCallable(array($this, 'generateRegex')));
  32.   }
  34.   /**
  35.    * Generates the current validator's regular expression.
  36.    *
  37.    * @return string
  38.    */
  39.   public function generateRegex()
  40.   {
  41.     return sprintf(self::REGEX_URL_FORMAT, implode('|', $this->getOption('protocols')));
  42.   }
  43. }
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