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Qiang Xue
2011-07-22 09:15:59 -04:00
parent 518bc86bae
commit b51c3bc77c
21 changed files with 2390 additions and 0 deletions
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framework/validators/CaptchaValidator.php Normal file
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<?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: CCaptchaValidator.php 3124 2011-03-25 15:48:05Z qiang.xue $
* @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;
}
}