Skip to content
This repository
Fetching contributors…

Octocat-spinner-32-eaf2f5

Cannot retrieve contributors at this time

file 124 lines (116 sloc) 3.753 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123
<?php
/**
* CCaptchaValidator class file.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link http://www.yiiframework.com/
* @copyright Copyright &copy; 2008-2011 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/

/**
* CCaptchaValidator validates that the attribute value is the same as the verification code displayed in the CAPTCHA.
*
* CCaptchaValidator should be used together with {@link CCaptchaAction}.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @version $Id$
* @package system.validators
* @since 1.0
*/
class CCaptchaValidator extends CValidator
{
/**
* @var boolean whether the comparison is case sensitive. Defaults to false.
*/
public $caseSensitive=false;
/**
* @var string ID of the action that renders the CAPTCHA image. Defaults to 'captcha',
* meaning the 'captcha' action declared in the current controller.
* This can also be a route consisting of controller ID and action ID.
*/
public $captchaAction='captcha';
/**
* @var boolean whether the attribute value can be null or empty.
* Defaults to false, meaning the attribute is invalid if it is empty.
*/
public $allowEmpty=false;

/**
* Validates the attribute of the object.
* If there is any error, the error message is added to the object.
* @param CModel $object the object being validated
* @param string $attribute the attribute being validated
*/
protected function validateAttribute($object,$attribute)
{
$value=$object->$attribute;
if($this->allowEmpty && $this->isEmpty($value))
return;
$captcha=$this->getCaptchaAction();
if(!$captcha->validate($value,$this->caseSensitive))
{
$message=$this->message!==null?$this->message:Yii::t('yii','The verification code is incorrect.');
$this->addError($object,$attribute,$message);
}
}

/**
* Returns the CAPTCHA action object.
* @return CCaptchaAction the action object
* @since 1.1.7
*/
protected function getCaptchaAction()
{
if(($captcha=Yii::app()->getController()->createAction($this->captchaAction))===null)
{
if(strpos($this->captchaAction,'/')!==false) // contains controller or module
{
if(($ca=Yii::app()->createController($this->captchaAction))!==null)
{
list($controller,$actionID)=$ca;
$captcha=$controller->createAction($actionID);
}
}
if($captcha===null)
throw new CException(Yii::t('yii','CCaptchaValidator.action "{id}" is invalid. Unable to find such an action in the current controller.',
array('{id}'=>$this->captchaAction)));
}
return $captcha;
}

/**
* Returns the JavaScript needed for performing client-side validation.
* @param CModel $object the data object being validated
* @param string $attribute the name of the attribute to be validated.
* @return string the client-side validation script.
* @see CActiveForm::enableClientValidation
* @since 1.1.7
*/
public function clientValidateAttribute($object,$attribute)
{
$captcha=$this->getCaptchaAction();
$message=$this->message!==null ? $this->message : Yii::t('yii','The verification code is incorrect.');
$message=strtr($message, array(
'{attribute}'=>$object->getAttributeLabel($attribute),
));
$code=$captcha->getVerifyCode(false);
$hash=$captcha->generateValidationHash($this->caseSensitive ? $code : strtolower($code));
$js="
var hash = $('body').data('{$this->captchaAction}.hash');
if (hash == null)
hash = $hash;
else
hash = hash[".($this->caseSensitive ? 0 : 1)."];
for(var i=value.length-1, h=0; i >= 0; --i) h+=value.".($this->caseSensitive ? '' : 'toLowerCase().')."charCodeAt(i);
if(h != hash) {
messages.push(".CJSON::encode($message).");
}
";

if($this->allowEmpty)
{
$js="
if($.trim(value)!='') {
$js
}
";
}

return $js;
}
}

Something went wrong with that request. Please try again.