<?php /** * TEmailAddressValidator class file * * @author Qiang Xue <qiang.xue@gmail.com> * @link http://www.pradosoft.com/ * @copyright Copyright © 2005-2013 PradoSoft * @license http://www.pradosoft.com/license/ * @version $Id: TEmailAddressValidator.php 3283 2013-03-24 10:19:08Z ctrlaltca $ * @package System.Web.UI.WebControls */ /** * Using TRegularExpressionValidator class */ Prado::using('System.Web.UI.WebControls.TRegularExpressionValidator'); /** * TEmailAddressValidator class * * TEmailAddressValidator validates whether the value of an associated * input component is a valid email address. If {@link getCheckMXRecord CheckMXRecord} * is true, it will check MX record for the email adress, provided * checkdnsrr() is available in the installed PHP. * * @author Qiang Xue <qiang.xue@gmail.com> * @version $Id: TEmailAddressValidator.php 3283 2013-03-24 10:19:08Z ctrlaltca $ * @package System.Web.UI.WebControls * @since 3.0 */ class TEmailAddressValidator extends TRegularExpressionValidator { /** * Regular expression used to validate the email address * @see http://www.regular-expressions.info/email.html */ const EMAIL_REGEXP='[a-zA-Z0-9!#$%&\'*+/=?^_`{|}~-]+(?:\.[a-zA-Z0-9!#$%&\'*+/=?^_`{|}~-]+)*@(?:[a-zA-Z0-9](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?\.)+[a-zA-Z0-9](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?'; /** * Gets the name of the javascript class responsible for performing validation for this control. * This method overrides the parent implementation. * @return string the javascript class name */ protected function getClientClassName() { return 'Prado.WebUI.TEmailAddressValidator'; } /** * @return string the regular expression that determines the pattern used to validate a field. */ public function getRegularExpression() { $regex=parent::getRegularExpression(); return $regex===''?self::EMAIL_REGEXP:$regex; } /** * Returns an array of javascript validator options. * @return array javascript validator options. */ public function evaluateIsValid() { $value=$this->getValidationValue($this->getValidationTarget()); $valid=$valid=is_string($value) && strlen($value)<=254 && parent::evaluateIsValid(); if($valid && $this->getCheckMXRecord() && function_exists('checkdnsrr')) { if($value!=='') { if(($pos=strpos($value,'@'))!==false) { $domain=substr($value,$pos+1); return $domain===''?false:checkdnsrr($domain,'MX'); } else return false; } } return $valid; } /** * @return boolean whether to check MX record for the email address being validated. Defaults to true. */ public function getCheckMXRecord() { return $this->getViewState('CheckMXRecord',false); } /** * @param boolean whether to check MX record for the email address being validated. * Note, if {@link checkdnsrr} is not available, this check will not be performed. */ public function setCheckMXRecord($value) { $this->setViewState('CheckMXRecord',TPropertyValue::ensureBoolean($value),false); } }