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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\filters\auth;
use Yii;
use yii\base\InvalidConfigException;
/**
* CompositeAuth is an action filter that supports multiple authentication methods at the same time.
*
* The authentication methods contained by CompositeAuth are configured via [[authMethods]],
* which is a list of supported authentication class configurations.
*
* The following example shows how to support three authentication methods:
*
* ```php
* public function behaviors()
* {
* return [
* 'compositeAuth' => [
* 'class' => \yii\filters\auth\CompositeAuth::className(),
* 'authMethods' => [
* \yii\filters\auth\HttpBasicAuth::className(),
* \yii\filters\auth\QueryParamAuth::className(),
* ],
* ],
* ];
* }
* ```
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
class CompositeAuth extends AuthMethod
{
/**
* @var array the supported authentication methods. This property should take a list of supported
* authentication methods, each represented by an authentication class or configuration.
*
* If this property is empty, no authentication will be performed.
*
* Note that an auth method class must implement the [[\yii\filters\auth\AuthInterface]] interface.
*/
public $authMethods = [];
/**
* {@inheritdoc}
*/
public function beforeAction($action)
{
return empty($this->authMethods) ? true : parent::beforeAction($action);
}
/**
* {@inheritdoc}
*/
public function authenticate($user, $request, $response)
{
foreach ($this->authMethods as $i => $auth) {
if (!$auth instanceof AuthInterface) {
$this->authMethods[$i] = $auth = Yii::createObject($auth);
if (!$auth instanceof AuthInterface) {
throw new InvalidConfigException(get_class($auth) . ' must implement yii\filters\auth\AuthInterface');
}
}
$identity = $auth->authenticate($user, $request, $response);
if ($identity !== null) {
return $identity;
}
}
return null;
}
/**
* {@inheritdoc}
*/
public function challenge($response)
{
foreach ($this->authMethods as $method) {
/* @var $method AuthInterface */
$method->challenge($response);
}
}
}