ZF2，创建侦听器和会话验证失败时引发异常

Question

让我们从问题所在开始：我有一个与 "route" 事件耦合的 acl 侦听器，它起初似乎工作正常，但一段时间后会抛出几个错误。这些是错误：

Fatal error: Uncaught exception 'Zend\Session\Exception\RuntimeException' with message 'Session validation failed'...

Zend\ServiceManager\Exception\ServiceNotCreatedException: An exception was raised while creating "authService"; no instance returned...

Zend\ServiceManager\Exception\ServiceNotCreatedException: An exception was raised while creating "MyAclListener"; no instance returned...

侦听器设置如下：

class MyAclListener implements ListenerAggregateInterface
{
    /** @var  AuthenticationServiceInterface */
    protected $_authService;

    function __construct (
        AuthenticationServiceInterface $authService ,
    )
    {
        $this->_authService     = $authService;
    }

    public function attach ( EventManagerInterface $events )
    {

        $this->listeners[ ] = $events->attach( 'route' , array( $this , 'checkAcl' ) );
    }

    public function checkAcl( MvcEvent $e ) {
\\Do Something for which the authService is needed
}

然后，在 module.config.php 我有

$config = array(
    'service_manager' => array(
        'factories' => array(
            'MyAclListener' => 'MyAcl\Factory\MyAclListenerFactory'
        ) ,
    ) ,
    'listeners'       => array(
        'MyAclListener'
    ) ,
);

侦听器的工厂：

<?php

namespace MyAcl\Factory;

use MyAcl\Listener\MyAclListener;
use Zend\ServiceManager\FactoryInterface;
use Zend\ServiceManager\ServiceLocatorInterface;

class AclListenerFactory implements FactoryInterface
{

    public function createService(ServiceLocatorInterface $serviceLocator)
    {

        // Finally create the service
        return new MyAclListener(
            $serviceLocator->get('authService') ,
        );
    }

}

会话已在 Module.php

中设置

   public function onBootstrap ( MvcEvent $e )
    {

        $serviceManager         = $e->getApplication()->getServiceManager();

        $config = $serviceManager->get('Configuration');
        $this->initSession( $config['session'] , $serviceManager->get('sessionCache')  );
}

public function initSession ( $config , $cache )
{

    $sessionConfig = new SessionConfig();
    $sessionConfig->setOptions( $config );
    $sessionManager = new SessionManager( $sessionConfig );

    $saveHandler = new Cache($cache);
    $sessionManager->setSaveHandler( $saveHandler );

    $sessionManager->getValidatorChain()->attach('session.validate', array(new HttpUserAgent(), 'isValid'));
    $sessionManager->getValidatorChain()->attach('session.validate', array(new RemoteAddr(), 'isValid'));

    $sessionManager->start();
    $sessionManager->regenerateId(true);

}

这些是会话的相关配置：

$config = array(
    'session'         => array(
        'cookie_lifetime' => 28800 ,
        'remember_me_seconds' => 28800 ,
        'use_cookies'         => true ,
        'cookie_httponly'     => true ,
    ) ,
    'caches'          => array(
        'sessionCache' => array(
            'adapter' => array(
                'name'     => 'memcached' ,
                'lifetime' => 604800 ,
                'options'  => array(
                    'servers'    => array(
                        array(
                            '127.0.0.1' , 11211
                        )
                    ) ,
                    'namespace'  => 'MySessionCache' ,
                    'liboptions' => array(
                        'COMPRESSION'     => true ,
                        'binary_protocol' => true ,
                        'no_block'        => true ,
                        'connect_timeout' => 100
                    )
                ) ,
                'plugins'  => array( 'serializer' )
            ) ,
        ) ,
    ) ,
)

了解错误后我的 "identity" 丢失并且登录用户已注销可能也很有用。

那么，我做错了什么？我如何摆脱这些错误？甚至：是否有更好的解决方案来设置 ACL 检查和我的会话？

更新
我更改了会话设置：

在Module.php

    public function onBootstrap ( MvcEvent $e )
    {

        $serviceManager = $e->getApplication()->getServiceManager();

        /* session */
        $this->expandInitialSessionConfig( $serviceManager , $serviceManager->get( 'sessionCache' ) );
}

public function expandInitialSessionConfig ( $sm , $cache )
{

    /** @var \Zend\Session\SessionManager $sessionManager */
    $sessionManager = $sm->get( 'Zend\Session\SessionManager' );

    $saveHandler = new Cache( $cache );
    $sessionManager->setSaveHandler( $saveHandler );

    $sessionManager->getValidatorChain()->attach( 'session.validate' , array( new HttpUserAgent() , 'isValid' ) );
    $sessionManager->getValidatorChain()->attach( 'session.validate' , array( new RemoteAddr() , 'isValid' ) );

}

在module.config.php

return array(
    'session_config'  => array(
        'cookie_lifetime'     => 28800 ,
        'remember_me_seconds' => 28800 ,
        'use_cookies'         => true ,
        'cookie_httponly'     => true ,
        'gc_probability'      => 10 ,
        'gc_maxlifetime'      => 7200 ,
        'cookie_domain'       => 'mydomain.com' ,
    ) ,
    'service_manager' => array(
        'factories' => array(
            'Zend\Session\SessionManager'         => 'Zend\Session\Service\SessionManagerFactory' ,
            'Zend\Session\Config\ConfigInterface' => 'Zend\Session\Service\SessionConfigFactory' ,
        ) ,
);

并且 $sessionManager->regenerateId( true ) 已移动，因此它现在仅在登录时发生。

Answer 1

您向 AclListenerFactory 中的 ServiceLocator 询问 authService，但它找不到这样命名的任何内容，这会导致第二个异常。因为 authService 未找到，所以您的工厂没有 return 侦听器。那是最后一个例外。

在你的代码中你写：

$serviceLocator->get('authService') ,

第一个异常与某些会话验证失败有关。所有问题的原因可能就在那里。没有会话验证可能导致无效 authService 从而链接其他两个异常。这个 authService 是在哪里注册或创建的？这在您当前共享的代码中不可见。以及该服务如何依赖失败的 "validation"...

如果您解决了会话验证问题，一切可能都会好起来。

Answer 2

我严重怀疑这是 "best practice"，但是从我的侦听器的构造函数中删除，那些依赖于会话的依赖项（自最初的问题以来添加了更多）解决了这个问题。我知道在我的代码中需要它们的第一刻就从 ServiceLocator 获取它们并将它们存储在我的侦听器 class 的受保护参数中以供进一步使用。然而，正如我所说，这不再是正确的依赖注入，但至少它有效。

function __construct (Logger $_myLog )
{
    $this->_myLog          = $_myLog;
    // removed here: $this->_authService     = $authService;

}

然后：

public function checkAcl ( MvcEvent $e )
{
   $sm = $e->getApplication()->getServiceManager();
   $this->_authService = $sm->get('authService');
   ....
}

ZF2，创建侦听器和会话验证失败时引发异常

ZF2, exception was raised while creating a listener & Session validation failed

php

listener

zend-framework2