要实现Spring Boot Security的单点登出并清除所有token,可以遵循以下步骤:
- 配置SecurityConfig
在Spring Security的配置类中,可以使用logout()
方法来设置单点登出和清除所有token的相关配置。示例代码如下:
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http
.authorizeRequests()
.antMatchers("/login/**", "/logout/**").permitAll()
.anyRequest().authenticated()
.and()
.formLogin()
.loginPage("/login")
.successHandler(successHandler())
.permitAll()
.and()
.logout()
.logoutUrl("/logout")
.invalidateHttpSession(true)
.logoutSuccessHandler(logoutSuccessHandler())
.deleteCookies("JSESSIONID")
.and()
.csrf()
.disable();
}
@Bean
public AuthenticationSuccessHandler successHandler() {
return new CustomAuthenticationSuccessHandler();
}
@Bean
public LogoutSuccessHandler logoutSuccessHandler() {
return new CustomLogoutSuccessHandler();
}
@Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
auth.inMemoryAuthentication()
.withUser("user")
.password("{noop}password")
.roles("USER");
}
}
在上面的代码中,logout()
方法中的参数设置如下:
logoutUrl()
:设置登出的URL,客户端访问这个URL即表示要登出。invalidateHttpSession(true)
:设置是否清除HttpSession,默认是true,表示清除。logoutSuccessHandler()
:设置登出成功后的处理器,这里使用了自定义的CustomLogoutSuccessHandler
。-
deleteCookies("JSESSIONID")
:设置要删除的cookie名称,这里删除了JSESSIONID,这是Spring Security默认使用的Session Cookie的名称。 -
实现LogoutSuccessHandler接口
为了在单点登出完成后进行一些处理,需要实现Spring Security的LogoutSuccessHandler
接口。示例代码如下:
public class CustomLogoutSuccessHandler implements LogoutSuccessHandler {
@Override
public void onLogoutSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {
// 实现相关处理,比如通知其他服务注销
String redirectUrl = "http://example.com/login?logout";
response.sendRedirect(redirectUrl);
}
}
在上面的代码中,onLogoutSuccess()
方法中的参数如下:
HttpServletRequest request
:客户端发来的请求对象。HttpServletResponse response
:向客户端返回的响应对象。Authentication authentication
:表示已经认证过的用户信息,即已经登录的用户信息。
在这个方法中,可以实现一些自定义的处理,比如通知其他服务注销,然后跳转到登录页面。在这个示例中,登出后会重定向到"http://example.com/login?logout"页面。
- 实现CasAuthenticationFilter
如果要与CAS服务器实现单点登出,需要自定义一个CasAuthenticationFilter
,并覆盖它的doFilter()
方法,并在这个方法中监听CAS服务器发送的注销请求,然后清除本地的token和HttpSession。示例代码如下:
public class CustomCasAuthenticationFilter extends CasAuthenticationFilter {
private static final Log logger = LogFactory.getLog(CustomCasAuthenticationFilter.class);
@Override
protected void doFilter(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
String logoutRequest = request.getParameter("logoutRequest");
if (StringUtils.isNotBlank(logoutRequest)) {
logger.info("Received CAS logout request.\n" + logoutRequest);
// 清除token和HttpSession
request.getSession().invalidate();
response.sendRedirect("/login?logout");
return;
}
super.doFilter(request, response, filterChain);
}
}
在上面的代码中,覆盖了doFilter()
方法,进行了以下操作:
- 判断是否接收到CAS服务器的注销请求。
- 如果收到注销请求,则清除token和HttpSession,然后重定向到登录页面。
-
如果没有收到注销请求,则调用父类的
doFilter()
方法。 -
配置SecurityConfig
将自定义的CustomCasAuthenticationFilter
配置到Spring Security中,示例代码如下:
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http.addFilter(casAuthenticationFilter());
}
@Bean
public CasAuthenticationFilter casAuthenticationFilter() throws Exception {
CasAuthenticationFilter casFilter = new CustomCasAuthenticationFilter();
casFilter.setAuthenticationManager(authenticationManager());
casFilter.setFilterProcessesUrl("/login/cas");
return casFilter;
}
@Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
auth.authenticationProvider(casAuthenticationProvider());
}
@Bean
public CasAuthenticationProvider casAuthenticationProvider() {
CasAuthenticationProvider casAuthenticationProvider = new CasAuthenticationProvider();
casAuthenticationProvider.setUserDetailsService(userDetailsService());
casAuthenticationProvider.setServiceProperties(serviceProperties());
casAuthenticationProvider.setTicketValidator(new Cas30ServiceTicketValidator(casUrl()));
casAuthenticationProvider.setKey("casAuthProviderKey");
return casAuthenticationProvider;
}
@Bean
public UserDetailsService userDetailsService() {
InMemoryUserDetailsManager manager = new InMemoryUserDetailsManager();
manager.createUser(User.withUsername("sso").password("{noop}sso").roles("USER").build());
return manager;
}
@Bean
public ServiceProperties serviceProperties() {
ServiceProperties serviceProperties = new ServiceProperties();
serviceProperties.setService("http://localhost:8080/login/cas");
serviceProperties.setSendRenew(false);
return serviceProperties;
}
@Bean
public CasAuthenticationEntryPoint casAuthenticationEntryPoint() {
CasAuthenticationEntryPoint casAuthenticationEntryPoint = new CasAuthenticationEntryPoint();
casAuthenticationEntryPoint.setLoginUrl(casUrl() + "/login");
casAuthenticationEntryPoint.setServiceProperties(serviceProperties());
return casAuthenticationEntryPoint;
}
@Bean
public SingleLogoutFilter singleLogoutFilter() {
LogoutHandler[] handlers = {logoutHandler()};
return new SingleLogoutFilter(casUrl() + "/logout", handlers, new SecurityContextLogoutHandler());
}
@Bean
public LogoutFilter logoutFilter() {
return new LogoutFilter("/logout", logoutHandler());
}
@Bean
public LogoutHandler logoutHandler() {
CompositeLogoutHandler composite = new CompositeLogoutHandler();
composite.addHandler(new SecurityContextLogoutHandler());
composite.addHandler(new CasLogoutHandler(casUrl()));
return composite;
}
@Bean
public CasAuthenticationFilter casFilter() throws Exception {
CasAuthenticationFilter filter = new CasAuthenticationFilter();
filter.setServiceProperties(serviceProperties());
filter.setAuthenticationManager(authenticationManager());
return filter;
}
@Bean
public CasAuthenticationProvider casAuthProvider() {
CasAuthenticationProvider provider = new CasAuthenticationProvider();
provider.setServiceProperties(serviceProperties());
provider.setTicketValidator(new Cas30ServiceTicketValidator(casUrl()));
provider.setKey("my_sso_key");
return provider;
}
@Bean
public ProxyTicketResolver proxyTicketResolver() {
return new Cas30ProxyTicketResolver(casUrl());
}
private String casUrl() {
return "http://localhost:8888/cas";
}
}
在上面的代码中,addFilter()
方法添加了上面自定义的CustomCasAuthenticationFilter
,并使用了setFilterProcessesUrl()
方法定义了过滤器的URL。同时配置了相关的服务和处理器,实现了与CAS服务器的单点登出。
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