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问题：

是否可以通过消息驱动bean调用安全EJB的方法？

麻学博
2023-03-14

当用户登录时，我需要在数据库中插入一条消息（主机名，仅作为示例）。因为它只是一个文本消息，所以将EJB注入到客户机（Servlets、JSP、JSF或其他东西）是非常不必要的。

这里提到的策略很管用。当EJB被强制执行安全约束时，问题就会出现。在这种情况下，它抛出一个关于安全性的异常。

消息驱动bean如下所示。

@MessageDriven(mappedName = "jms/destination", activationConfig = {
    @ActivationConfigProperty(propertyName = "acknowledgeMode", propertyValue = "Auto-acknowledge"),
    @ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue")
})
public class UserStatusMessageBean implements MessageListener
{
    @Resource
    private MessageDrivenContext messageDrivenContext;
    @EJB
    private UserStatusBeanRemote userStatusBeanRemote;

    public UserStatusMessageBean() {}

    @Override
    public void onMessage(Message message)
    {
        TextMessage textMessage;

        try
        {
            if(message instanceof TextMessage)
            {
                textMessage = (TextMessage) message;
                userStatusBeanRemote.addHost(textMessage.getText());
                //This EJB method causes the exception as given below.
            }
            else
            {
                System.out.println("Message is of wrong type : " +message.getClass().getName());
            }
        }
        catch (JMSException e)
        {
            messageDrivenContext.setRollbackOnly();
            System.out.println(e);
        }
        catch (Throwable e)
        {
            System.out.println(e);
        }
    }
}

到目前为止,无状态EJB只有一个方法负责使用JPA标准API将消息插入数据库：

@Stateless
@DeclareRoles(value={"ROLE_ADMIN", "ROLE_USER"})
@RolesAllowed(value={"ROLE_ADMIN"})
public class UserStatusBean implements UserStatusBeanRemote
{
    @Override
    public void addHost(String hostName)
    {
         //Business logic to add the host name to the database.
    }
}

@WebFilter(filterName = "SecurityCheck", urlPatterns = {"/jass/*"})
public final class SecurityCheck implements Filter
{
    @Resource(mappedName="jms/destinationFactory")
    private ConnectionFactory connectionFactory;
    @Resource(mappedName="jms/destination")
    private Queue queue;
    @EJB
    private final UserBeanLocal userService=null;

    public SecurityCheck() {}

    private void sendJMSMessageToDestination(String message) throws JMSException
    {
        Connection connection = null;
        Session session = null;

        try
        {
            connection = connectionFactory.createConnection();
            session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
            MessageProducer messageProducer = session.createProducer(queue);
            TextMessage textMessage = session.createTextMessage();
            textMessage.setText(message);
            messageProducer.send(textMessage);
        }
        finally
        {
            if(session!=null){session.close();}
            if(connection!=null){connection.close();}
        }
    }

    private void doBeforeProcessing(ServletRequest request, ServletResponse response) throws IOException, ServletException
    {
        HttpServletRequest httpServletRequest=(HttpServletRequest)request;
        httpServletRequest.login(httpServletRequest.getParameter("userName"), httpServletRequest.getParameter("password"));
    }

    private void doAfterProcessing(ServletRequest request, ServletResponse response) throws IOException, ServletException, JMSException
    {
        HttpServletRequest httpServletRequest=(HttpServletRequest)request;
        HttpServletResponse httpServletResponse=(HttpServletResponse)response;
        ExternalContext externalContext = FacesContext.getCurrentInstance().getExternalContext();
        Map<String, Object> sessionMap = externalContext.getSessionMap();

        if(httpServletRequest.isUserInRole("ROLE_USER"))
        {
            sendJMSMessageToDestination(httpServletRequest.getLocalName());//Send a text message through a message-driven bean.
            String userName = httpServletRequest.getParameter("userName");
            UserTable userTable = userService.setLastLogin(userName);
            userTable.setPassword(null);
            sessionMap.put("userName", userTable!=null?userTable.getFirstName():"Unknown");
            sessionMap.put("user", userTable);

            httpServletResponse.setHeader("Cache-Control", "no-cache, no-store, must-revalidate");
            httpServletResponse.setHeader("Pragma", "no-cache");
            httpServletResponse.setDateHeader("Expires", 0);
            httpServletResponse.sendRedirect("../user_side/Home.jsf");
        }
        else if(httpServletRequest.isUserInRole("ROLE_ADMIN"))
        {
            sendJMSMessageToDestination(httpServletRequest.getLocalName());//Send a text message through a message-driven bean.

            String userName = httpServletRequest.getParameter("userName");
            UserTable userTable = userService.setLastLogin(userName);
            userTable.setPassword(null);
            sessionMap.put("adminName", userTable!=null?userTable.getFirstName():"Unknown");
            sessionMap.put("user", userTable);

            httpServletResponse.setHeader("Cache-Control", "no-cache, no-store, must-revalidate");
            httpServletResponse.setHeader("Pragma", "no-cache");
            httpServletResponse.setDateHeader("Expires", 0);
            httpServletResponse.sendRedirect("../admin_side/Home.jsf");
        }
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException
    {
        try
        {
            doBeforeProcessing(request, response);
        }
        catch (Exception e)
        {
            HttpServletResponse httpServletResponse=(HttpServletResponse)response;
            //FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_ERROR, "Error", "Incorrect user name and/or password. Access denied."));
            httpServletResponse.sendRedirect("../utility/Login.jsf");
            return;
        }

        chain.doFilter(request, response);

        try
        {
            doAfterProcessing(request, response);
        }
        catch (JMSException ex)
        {
            Logger.getLogger(SecurityCheck.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    //The rest of this filter.
}

WARNING: EJB5184:A system exception occurred during an invocation on EJB UserStatusBean, method: public void ejb.message.UserStatusBean.addHost(java.lang.String)
WARNING: javax.ejb.AccessLocalException: Client not authorized for this invocation
    at com.sun.ejb.containers.BaseContainer.preInvoke(BaseContainer.java:1895)
    at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:204)
    at com.sun.ejb.containers.EJBObjectInvocationHandlerDelegate.invoke(EJBObjectInvocationHandlerDelegate.java:79)
    at $Proxy366.addHost(Unknown Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.privateInvoke(StubInvocationHandlerImpl.java:239)
    at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.invoke(StubInvocationHandlerImpl.java:150)
    at com.sun.corba.ee.impl.presentation.rmi.codegen.CodegenStubBase.invoke(CodegenStubBase.java:226)
    at ejb.message.__UserStatusBeanRemote_Remote_DynamicStub.addHost(ejb/message/__UserStatusBeanRemote_Remote_DynamicStub.java)
    at ejb.message._UserStatusBeanRemote_Wrapper.addHost(ejb/message/_UserStatusBeanRemote_Wrapper.java)
    at bean.message.UserStatusMessageBean.onMessage(UserStatusMessageBean.java:37)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1081)
    at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1153)
    at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:4695)
    at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:630)
    at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
    at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:582)
    at org.jboss.weld.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:55)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
    at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
    at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:369)
    at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:4667)
    at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4655)
    at org.glassfish.ejb.mdb.MessageBeanContainer.deliverMessage(MessageBeanContainer.java:1219)
    at org.glassfish.ejb.mdb.MessageBeanListenerImpl.deliverMessage(MessageBeanListenerImpl.java:81)
    at com.sun.enterprise.connectors.inbound.MessageEndpointInvocationHandler.invoke(MessageEndpointInvocationHandler.java:171)
    at $Proxy406.onMessage(Unknown Source)
    at com.sun.messaging.jms.ra.OnMessageRunner.run(OnMessageRunner.java:283)
    at com.sun.enterprise.connectors.work.OneWork.doWork(OneWork.java:107)
    at com.sun.corba.ee.impl.threadpool.ThreadPoolImpl$WorkerThread.performWork(ThreadPoolImpl.java:497)
    at com.sun.corba.ee.impl.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:540)

INFO:   javax.ejb.EJBAccessException
    at ejb.message._UserStatusBeanRemote_Wrapper.addHost(ejb/message/_UserStatusBeanRemote_Wrapper.java)
    at bean.message.UserStatusMessageBean.onMessage(UserStatusMessageBean.java:37)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1081)
    at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1153)
    at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:4695)
    at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:630)
    at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
    at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:582)
    at org.jboss.weld.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:55)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
    at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
    at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:369)
    at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:4667)
    at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4655)
    at org.glassfish.ejb.mdb.MessageBeanContainer.deliverMessage(MessageBeanContainer.java:1219)
    at org.glassfish.ejb.mdb.MessageBeanListenerImpl.deliverMessage(MessageBeanListenerImpl.java:81)
    at com.sun.enterprise.connectors.inbound.MessageEndpointInvocationHandler.invoke(MessageEndpointInvocationHandler.java:171)
    at $Proxy406.onMessage(Unknown Source)
    at com.sun.messaging.jms.ra.OnMessageRunner.run(OnMessageRunner.java:283)
    at com.sun.enterprise.connectors.work.OneWork.doWork(OneWork.java:107)
    at com.sun.corba.ee.impl.threadpool.ThreadPoolImpl$WorkerThread.performWork(ThreadPoolImpl.java:497)
    at com.sun.corba.ee.impl.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:540)
Caused by: java.rmi.AccessException: CORBA NO_PERMISSION 9998 Maybe; nested exception is: 
    org.omg.CORBA.NO_PERMISSION:   vmcid: 0x2000  minor code: 1806 completed: Maybe
    at com.sun.corba.ee.impl.javax.rmi.CORBA.Util.mapSystemException(Util.java:264)
    at com.sun.corba.ee.impl.javax.rmi.CORBA.Util.wrapException(Util.java:695)
    at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.privateInvoke(StubInvocationHandlerImpl.java:249)
    at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.invoke(StubInvocationHandlerImpl.java:150)
    at com.sun.corba.ee.impl.presentation.rmi.codegen.CodegenStubBase.invoke(CodegenStubBase.java:226)
    at ejb.message.__UserStatusBeanRemote_Remote_DynamicStub.addHost(ejb/message/__UserStatusBeanRemote_Remote_DynamicStub.java)
    ... 30 more
Caused by: org.omg.CORBA.NO_PERMISSION:   vmcid: 0x2000  minor code: 1806 completed: Maybe
Caused by: javax.ejb.AccessLocalException: Client not authorized for this invocation
    at com.sun.ejb.containers.BaseContainer.preInvoke(BaseContainer.java:1895)
    at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:204)
    at com.sun.ejb.containers.EJBObjectInvocationHandlerDelegate.invoke(EJBObjectInvocationHandlerDelegate.java:79)
    at $Proxy366.addHost(Unknown Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.privateInvoke(StubInvocationHandlerImpl.java:239)
    at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.invoke(StubInvocationHandlerImpl.java:150)
    at com.sun.corba.ee.impl.presentation.rmi.codegen.CodegenStubBase.invoke(CodegenStubBase.java:226)
    at ejb.message.__UserStatusBeanRemote_Remote_DynamicStub.addHost(ejb/message/__UserStatusBeanRemote_Remote_DynamicStub.java)
    at ejb.message._UserStatusBeanRemote_Wrapper.addHost(ejb/message/_UserStatusBeanRemote_Wrapper.java)
    at bean.message.UserStatusMessageBean.onMessage(UserStatusMessageBean.java:37)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1081)
    at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1153)
    at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:4695)
    at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:630)
    at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
    at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:582)
    at org.jboss.weld.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:55)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
    at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
    at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:369)
    at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:4667)
    at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4655)
    at org.glassfish.ejb.mdb.MessageBeanContainer.deliverMessage(MessageBeanContainer.java:1219)
    at org.glassfish.ejb.mdb.MessageBeanListenerImpl.deliverMessage(MessageBeanListenerImpl.java:81)
    at com.sun.enterprise.connectors.inbound.MessageEndpointInvocationHandler.invoke(MessageEndpointInvocationHandler.java:171)
    at $Proxy406.onMessage(Unknown Source)
    at com.sun.messaging.jms.ra.OnMessageRunner.run(OnMessageRunner.java:283)
    at com.sun.enterprise.connectors.work.OneWork.doWork(OneWork.java:107)
    at com.sun.corba.ee.impl.threadpool.ThreadPoolImpl$WorkerThread.performWork(ThreadPoolImpl.java:497)
    at com.sun.corba.ee.impl.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:540)

是否可以通过消息驱动的bean调用这样的方法？

我用的是GlassFish 4.0。

共有1个答案

昝存
2023-03-14

您可以对MDB使用@runas注释。

EJB规范规定：

Bean提供程序可以使用RunAs元数据注释，或者Bean提供程序或应用程序汇编程序可以使用run-as部署描述符元素为部署描述符中的企业Bean定义run-as标识。run-as标识应用于企业bean作为一个整体，即应用于企业bean的业务、主接口和组件接口、无接口视图和/或web服务endpoint的所有方法；消息驱动bean的消息侦听器方法；和企业bean的超时回调方法；以及它们可能反过来调用的bean的所有内部方法。

在这种情况下，调用方主体传播并不重要。谁调用了该方法以及标识是否被传播并不相关，将使用run-as标识，并将进一步传播该标识。

不过，必须正确设置run-as标识。基本上，如果使用默认主体到角色映射，则需要创建一个用户，例如runasadmin，并为他分配role_admin角色。然后用@runas（“runasadmin”）注释MDB。

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