spring - 使用方法级安全性处理 AccessDenied

Question

我有一个使用 Spring Security 保护的方法，如下所示:

@PreAuthorize("hasRole('add_user')")
public void addUser(User user) ;

如果没有 enoguh 权限的用户尝试调用它，抛出 accessDenied 异常:

org.springframework.security.access.AccessDeniedException: Access is denied

这是预期的，但问题是，为什么定义access-denied-handler

security.xml 配置文件不起作用:

<access-denied-handler error-page="accessDenied"/>

我的意思是不工作，当用户没有足够的权限尝试按下按钮 addUser 时，它将调用服务 addUser (只有拥有此权限的用户才能访问)，则会抛出 AccessDenied 异常这是所需的行为，但用户不会重定向到 xml 中配置的访问被拒绝异常。

当抛出此异常时，用户不应该自动重定向到访问被拒绝的页面，或者我必须在代码中显式定义此类行为吗？

请指教。

我正在将 Spring Security 3.0.5 与 JSF 2.1 和 ICEFaces 2 结合使用

更新: applicationSecurity.xml:

<beans:beans xmlns="http://www.springframework.org/schema/security"  
    xmlns:beans="http://www.springframework.org/schema/beans" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:util="http://www.springframework.org/schema/util"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
          http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
          http://www.springframework.org/schema/security
          http://www.springframework.org/schema/security/spring-security-3.0.4.xsd
          http://www.springframework.org/schema/util
          http://www.springframework.org/schema/util/spring-util-3.1.xsd">


        <!-- Enable @pre, @post spring security method level annotations -->
        <global-method-security pre-post-annotations="enabled" />   


        <http use-expressions="true"  auto-config="true" access-denied-page="/accessDenied">

     <session-management session-fixation-protection="none"/>

        <remember-me  token-validity-seconds="1209600"/>


        <intercept-url pattern="/accessDenied" access="permitAll"/>        
        <intercept-url pattern="/login" access="permitAll"/>
        <intercept-url pattern="/j_spring_security_check" access="permitAll" />


        <intercept-url pattern="/faces/javax.faces.resource/**" access="permitAll" />
        <intercept-url pattern="/xmlhttp/**" access="permitAll" />
        <intercept-url pattern="/resources/**" access="permitAll" />        
        <intercept-url pattern="/scripts/**" access="permitAll" />
        <intercept-url pattern="/images/**" access="permitAll" />
        <intercept-url pattern="/css/**" access="permitAll" />


        <!-- All pages requires authentication (not anonymous user) -->

        <intercept-url pattern="/**" access="isAuthenticated()" />
        <intercept-url pattern="/faces/**" access="isAuthenticated()" />


        <form-login default-target-url="/"   
        always-use-default-target="true"            
            login-processing-url="/j_spring_security_check"         
            login-page="/login"
            authentication-failure-url="/login?login_error=1"                                                               
        />

        <logout logout-url="/logout" logout-success-url="/login" />     
    </http>

    <authentication-manager alias="authenticationManager">          
      <authentication-provider user-service-ref="userDetailsServiceImpl"/>    
    </authentication-manager>


    </beans:beans>

更新2:异常前调试:

DEBUG [http-bio-8080-exec-1] (PrePostAnnotationSecurityMetadataSource.java:93) - @org.springframework.security.access.prepost.PreAuthorize(value=hasRole('add_user')) found on specific method: public void com.myapp.service.impl.UserServiceImpl.addUser(com.myapp.domain.User) throws java.lang.Exception,org.springframework.security.access.AccessDeniedException
DEBUG [http-bio-8080-exec-1] (DelegatingMethodSecurityMetadataSource.java:66) - Adding security method [CacheKey[com.myapp.service.impl.UserServiceImpl; public abstract void com.myapp.service.UserService.addUser(com.myapp.domain.User) throws java.lang.Exception,org.springframework.security.access.AccessDeniedException]] with attributes [[authorize: 'hasRole('add_user')', filter: 'null', filterTarget: 'null']]
DEBUG [http-bio-8080-exec-1] (AbstractSecurityInterceptor.java:191) - Secure object: ReflectiveMethodInvocation: public abstract void com.myapp.service.UserService.addUser(com.myapp.domain.User) throws java.lang.Exception,org.springframework.security.access.AccessDeniedException; target is of class [com.myapp.service.impl.UserServiceImpl]; Attributes: [[authorize: 'hasRole('add_user')', filter: 'null', filterTarget: 'null']]
DEBUG [http-bio-8080-exec-1] (AbstractSecurityInterceptor.java:292) - Previously Authenticated: org.springframework.security.authentication.UsernamePasswordAuthenticationToken@c650d918: Principal: org.springframework.security.core.userdetails.User@db344023: Username: user@mycomp.com; Password: [PROTECTED]; Enabled: true; AccountNonExpired: true; credentialsNonExpired: true; AccountNonLocked: true; Granted Authorities: access_viewUsers; Credentials: [PROTECTED]; Authenticated: true; Details: org.springframework.security.web.authentication.WebAuthenticationDetails@fffde5d4: RemoteIpAddress: 0:0:0:0:0:0:0:1; SessionId: E6BBAC0CD4499B1455227DC6035CC882; Granted Authorities: access_viewUsers
DEBUG [http-bio-8080-exec-1] (AffirmativeBased.java:53) - Voter: org.springframework.security.access.prepost.PreInvocationAuthorizationAdviceVoter@1d1e082e, returned: -1
DEBUG [http-bio-8080-exec-1] (AffirmativeBased.java:53) - Voter: org.springframework.security.access.vote.RoleVoter@1eab12f1, returned: 0
DEBUG [http-bio-8080-exec-1] (AffirmativeBased.java:53) - Voter: org.springframework.security.access.vote.AuthenticatedVoter@71689bf1, returned: 0

Answer 1

根据 spring 安全文档，元素的 access-denied-page 属性的用户在 Spring 3.0 及更高版本中已被弃用。

我们在应用程序中执行以下操作:

1. 通过扩展 Spring Security 框架的 AccessDeniedHandlerImpl 创建自定义访问拒绝处理程序。
2. 调用 setErrorPage 方法，传入将显示访问被拒绝页面的 Controller 的名称
3. 在我们的例子中，我们将用户的帐户锁定在自定义处理程序中 - 任何用户都没有充分的理由获得访问被拒绝的异常，除非他们做了不应该做的事情。我们还记录他们尝试访问的内容等。

4. 在处理程序末尾调用 super.handle(_request, _response, _exception);。 Spring 会将控制转发给上面 #2 中列出的 Controller 。

   public class AccessDeniedHandlerApp extends AccessDeniedHandlerImpl {
       private static Logger logger = Logger.getLogger(AccessDeniedHandlerApp.class);
   
       private static final String LOG_TEMPLATE = "AccessDeniedHandlerApp:  User attempted to access a resource for which they do not have permission.  User %s attempted to access %s";
   
        @Override
        public void handle(HttpServletRequest _request, HttpServletResponse _response, AccessDeniedException _exception) throws IOException, ServletException {
            setErrorPage("/securityAccessDenied");  // this is a standard Spring MVC Controller
   
            // any time a user tries to access a part of the application that they do not have rights to lock their account
            <custom code to lock the account>
            super.handle(_request, _response, _exception);
   }
   

   }

这是我的 XML:AccessDeniedHandlerApp extends 'AccessDeniedHandlerImpl`

<http auto-config='true'>
    <intercept-url pattern="/views/**" access="ROLE_USER" />
    <form-login login-page="/Login.jsp" authentication-success-handler-ref="loginSuccessFilter"
                authentication-failure-handler-ref="loginFailureFilter" />
    <logout logout-success-url="/home" />
    <access-denied-handler ref="customAccessDeniedHandler"/>
</http>

<beans:bean id="customAccessDeniedHandler" class="org.demo.security.AccessDeniedHandlerApp"/>

这是我的拒绝访问 Controller - 我应该早点发布这个 - 对此感到抱歉。为了出现访问被拒绝的页面，我必须使用重定向:

@Controller
public class AccessDeniedController {
    private static Logger logger = Logger.getLogger(AccessDeniedController.class);

    @RequestMapping(value = "/securityAccessDenied")
    public String processAccessDeniedException(){
        logger.info("Access Denied Handler");
        return "redirect:/securityAccessDeniedView";
    }

    @RequestMapping(value = "/securityAccessDeniedView")
    public String displayAccessDeniedView(){
        logger.info("Access Denied View");
        return "/SecurityAccessDenied";
    }

如果这不能解决问题，请告诉我，我会继续挖掘 - 我刚刚在本地再次测试了它，这应该可以解决问题。 }