Question

使用纯Spring Java配置我遇到了让Spring和CAS执行单点注销的麻烦。我有单点登录使用下面的配置。我使用一个简单的JSP页面对url https://nginx.shane.com/app/logout执行表单POST，并在POST'd数据中包含CSRF值。这一切似乎都没有错误，但是当我进入安全页面时，它只是让我回来而无需登录。有任何想法吗？

@Configuration
@EnableWebSecurity
public class SecurityWebAppConfig extends WebSecurityConfigurerAdapter {

@Bean
protected ServiceProperties serviceProperties() {
    ServiceProperties serviceProperties = new ServiceProperties();
    serviceProperties.setService("https://nginx.shane.com/app/j_spring_cas_security_check");
    serviceProperties.setSendRenew(false);
    return serviceProperties;
}

@Bean
public CasAuthenticationProvider casAuthenticationProvider() {
    CasAuthenticationProvider casAuthenticationProvider = new CasAuthenticationProvider();
    casAuthenticationProvider.setAuthenticationUserDetailsService(authenticationUserDetailsService());
    casAuthenticationProvider.setServiceProperties(serviceProperties());
    casAuthenticationProvider.setTicketValidator(cas20ServiceTicketValidator());
    casAuthenticationProvider.setKey("an_id_for_this_auth_provider_only");
    return casAuthenticationProvider;
}

@Bean
public AuthenticationUserDetailsService<CasAssertionAuthenticationToken> authenticationUserDetailsService() {
    return new TestCasAuthenticationUserDetailsService();
}

@Bean
public Cas20ServiceTicketValidator cas20ServiceTicketValidator() {
    return new Cas20ServiceTicketValidator("https://nginx.shane.com/cas");
}

@Bean
public CasAuthenticationFilter casAuthenticationFilter() throws Exception {
    CasAuthenticationFilter casAuthenticationFilter = new CasAuthenticationFilter();
    casAuthenticationFilter.setAuthenticationManager(authenticationManager());
    return casAuthenticationFilter;
}

@Bean
public CasAuthenticationEntryPoint casAuthenticationEntryPoint() {
    CasAuthenticationEntryPoint casAuthenticationEntryPoint = new CasAuthenticationEntryPoint();
    casAuthenticationEntryPoint.setLoginUrl("https://nginx.shane.com/cas/login");
    casAuthenticationEntryPoint.setServiceProperties(serviceProperties());

    return casAuthenticationEntryPoint;
}

@Bean
public SingleSignOutFilter singleSignOutFilter() {
    // This filter handles a Single Logout Request from the CAS Server
    return new SingleSignOutFilter();
}

@Bean
public LogoutFilter requestLogoutFilter() {
    // This filter redirects to the CAS Server to signal Single Logout should be performed
    SecurityContextLogoutHandler handler = new SecurityContextLogoutHandler();
    handler.setClearAuthentication(true);
    handler.setInvalidateHttpSession(true);

    LogoutFilter logoutFilter = new LogoutFilter("https://nginx.shane.com/", handler);
    return logoutFilter;
}

@Override
protected void configure(HttpSecurity http) throws Exception {
    http.addFilter(casAuthenticationFilter());
    http.addFilterBefore(requestLogoutFilter(), LogoutFilter.class);
    http.addFilterBefore(singleSignOutFilter(), CasAuthenticationFilter.class);

    http.exceptionHandling()
        .authenticationEntryPoint(casAuthenticationEntryPoint());

    http.authorizeRequests()
        .antMatchers("/admin/**").access("hasRole('ROLE_ADMIN')")
        .antMatchers("/dba/**").access("hasRole('ROLE_ADMIN') or hasRole('ROLE_DBA')");

    http.logout()
        .addLogoutHandler(handler)
        .deleteCookies("remove")
        .invalidateHttpSession(true)
        .logoutUrl("/logout")
        .logoutSuccessUrl("/");
}

@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
    auth.authenticationProvider(casAuthenticationProvider());
}

}

我还添加了一个WebListener来处理会话销毁事件：

@WebListener
public class SecurityWebListener implements HttpSessionListener {

private SingleSignOutHttpSessionListener listener = new SingleSignOutHttpSessionListener();

@Override
public void sessionCreated(HttpSessionEvent se) {
    listener.sessionCreated(se);
}

@Override
public void sessionDestroyed(HttpSessionEvent se) {
    listener.sessionDestroyed(se);
}
}

这是日志输出

[org.springframework.security.web.FilterChainProxy] [/logout at position 6 of 14 in additional filter chain; firing Filter: 'LogoutFilter'] []
[org.springframework.security.web.util.matcher.AntPathRequestMatcher] [Checking match of request : '/logout'; against '/logout'] []
[org.springframework.security.web.authentication.logout.LogoutFilter] [Logging out user 'org.springframework.security.cas.authentication.CasAuthenticationToken@836ad34b: Principal: org.springframework.security.core.userdetails.User@586034f: Username: admin; Password: [PROTECTED]; Enabled: true; AccountNonExpired: true; credentialsNonExpired: true; AccountNonLocked: true; Granted Authorities: ROLE_ADMIN; Credentials: [PROTECTED]; Authenticated: true; Details: org.springframework.security.web.authentication.WebAuthenticationDetails@fffdaa08: RemoteIpAddress: 127.0.0.1; SessionId: FA880C15EF09C033E1CA0C8E4785905F; Granted Authorities: ROLE_ADMIN Assertion: org.jasig.cas.client.validation.AssertionImpl@fcd38ec Credentials (Service/Proxy Ticket): ST-23-1UandqRxBcG6HCTx0Pdd-cas01.example.org' and transferring to logout destination] []
[org.springframework.security.web.authentication.logout.SecurityContextLogoutHandler] [Invalidating session: FA880C15EF09C033E1CA0C8E4785905F] []
[org.jasig.cas.client.session.HashMapBackedSessionMappingStorage] [Attempting to remove Session=[FA880C15EF09C033E1CA0C8E4785905F]] []
[org.jasig.cas.client.session.HashMapBackedSessionMappingStorage] [Found mapping for session.  Session Removed.] []
[org.springframework.security.web.authentication.logout.SimpleUrlLogoutSuccessHandler] [Using default Url: /] []
[org.springframework.security.web.DefaultRedirectStrategy] [Redirecting to '/app/'] []

Answer 1

（联合国）幸运我有类似的问题;）当CAS试图调用您的应用程序注销时发生。一方面，CAS尝试传递sessionId以执行注销，另一方面，SpringSecurity期望获得CSRF令牌，该令牌不是由CAS发送的，因为它仅发送GET请求。 CsrfFilter没有找到csrf令牌并中断过滤器链。用户不知道这一点，因为CAS隐式调用了注销请求。请求直接从CAS服务器发送到应用程序服务器，而不是通过在Web浏览器中重定向用户。

为了使其工作，您需要配置HttpSecurity以排除/不包括LogoutFilter filterProcessesUrl（在您使用默认值时， j_spring_security_logout ）。

假设您在尝试创建新管理员时要检查CSRF，为了解决问题，您需要按如下方式对其进行配置：

@Override
protected void configure(HttpSecurity http) throws Exception {
    http.addFilter(casAuthenticationFilter());
    http.addFilterBefore(requestLogoutFilter(), LogoutFilter.class);
    http.addFilterBefore(singleSignOutFilter(), CasAuthenticationFilter.class);

    http.exceptionHandling()
        .authenticationEntryPoint(casAuthenticationEntryPoint());

    http.authorizeRequests()
        .antMatchers("/admin/**").access("hasRole('ROLE_ADMIN')")
        .antMatchers("/dba/**").access("hasRole('ROLE_ADMIN') or hasRole('ROLE_DBA')");

    http.csrf()
        .requireCsrfProtectionMatcher(new AntPathRequestMatcher("/admin/create"));

    http.logout()
        .addLogoutHandler(handler)
        .deleteCookies("remove")
        .invalidateHttpSession(true)
        .logoutUrl("/logout")
        .logoutSuccessUrl("/");
}

只是为了表明，我已经添加了

<强> http.csrf().requireCsrfProtectionMatcher(new AntPathRequestMatcher("/admin/create"));

注意你不能使用match all pattern（/ admin / **），因为你可能想要调用一些get请求，CSRF过滤器会期望它们发送令牌。

由于在那里引入了跨站点请求伪造（CSRF）支持，因此Spring Security在3.2.x之前不会出现此类问题。

希望这些帮助：）

使用Spring Security和CAS进行单点注销

1 个答案: