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61 lines
1.8 KiB
PHP
61 lines
1.8 KiB
PHP
<?php
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/**
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* CEmailValidator class file.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @link http://www.yiiframework.com/
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* @copyright Copyright © 2008 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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/**
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* CEmailValidator validates that the attribute value is a valid email address.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @version $Id$
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* @package system.validators
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* @since 1.0
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*/
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class CEmailValidator extends CValidator
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{
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/**
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* @var string the regular expression used to validates the attribute value.
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*/
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public $pattern='/^\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*$/';
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/**
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* @var boolean whether to check the MX record for the email address.
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* Defaults to false. To enable it, you need to make sure the PHP function 'checkdnsrr'
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* exists in your PHP installation.
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*/
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public $checkMX=false;
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/**
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* @var boolean whether the attribute value can be null or empty. Defaults to true,
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* meaning that if the attribute is empty, it is considered valid.
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*/
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public $allowEmpty=true;
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/**
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* Validates the attribute of the object.
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* If there is any error, the error message is added to the object.
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* @param CModel the object being validated
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* @param string the attribute being validated
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*/
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protected function validateAttribute($object,$attribute)
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{
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$value=$object->$attribute;
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if($this->allowEmpty && ($value===null || $value===''))
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return;
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if(($valid=preg_match($this->pattern,$value)) && $this->checkMX && function_exists('checkdnsrr'))
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{
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$pos=strpos($value,'@');
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$domain=substr($value,$pos+1);
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$valid=checkdnsrr($domain,'MX');
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}
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if(!$valid)
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{
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$message=$this->message!==null?$this->message:Yii::t('yii','{attribute} is not a valid email address.');
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$this->addError($object,$attribute,$message);
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}
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}
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}
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