Spring Boot 访问安全之认证和鉴权详解

public interface HandlerInterceptor {
	/**
	 * Intercept the execution of a handler. Called after HandlerMapping determined
	 * an appropriate handler object, but before HandlerAdapter invokes the handler.
	 * 
	 * 在业务处理器处理请求之前被调用。预处理，可以进行编码、安全控制、权限校验等处理
	 * 
	 * handler：controller内的方法，可以通过HandlerMethod method= ((HandlerMethod)handler);获取到@RequestMapping
	 */	
	boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception;
 
	/**
	 * Intercept the execution of a handler. Called after HandlerAdapter actually
	 * invoked the handler, but before the DispatcherServlet renders the view.
	 * 
	 * 在业务处理器处理请求执行完成后，生成视图之前执行。后处理（调用了Service并返回ModelAndView，但未进行页面渲染），有机会修改ModelAndView
	 */	
	void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception;
 
	/**
	 * Callback after completion of request processing, that is, after rendering
	 * the view. Will be called on any outcome of handler execution, thus allows
	 * for proper resource cleanup.
	 * 
	 * 在DispatcherServlet完全处理完请求后被调用，可用于清理资源等。返回处理（已经渲染了页面）
	 * 
	 */	
	void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception;
}
//你可以基于有些url进行拦截
@Configuration
public class UserSecurityInterceptor extends WebMvcConfigurerAdapter {
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        String[] securityUrls = new String[]{"/**"};
        String[] excludeUrls = new String[]{"/**/esb/**", "/**/dictionary/**"};
        registry.addInterceptor(userLoginInterceptor()).excludePathPatterns(excludeUrls).addPathPatterns(securityUrls);
        super.addInterceptors(registry);
    }
 
    /** fixed: url中包含// 报错
     * org.springframework.security.web.firewall.RequestRejectedException: The request was rejected because the URL was not normalized.
     * @return
     */
    @Bean
    public HttpFirewall allowUrlEncodedSlashHttpFirewall() {
        DefaultHttpFirewall firewall = new DefaultHttpFirewall();
        firewall.setAllowUrlEncodedSlash(true);
        return firewall;
    }
 
    @Bean
    public AuthInterceptor userLoginInterceptor() {
        return new AuthInterceptor();
    }
 
    public class AuthInterceptor implements HandlerInterceptor {
        public Logger logger = LoggerFactory.getLogger(AuthInterceptor.class);
        @Autowired
        private ApplicationContext applicationContext; 
        public AuthInterceptor() {
        }
 
        @Override
        public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
            LoginUserInfo user = null;
            try {
                user = (LoginUserInfo) SSOUserUtils.getCurrentLoginUser();
            } catch (Exception e) {
                logger.error("从SSO登录信息中获取用户信息失败！ 详细错误信息：%s", e);
                throw new ServletException("从SSO登录信息中获取用户信息失败！", e);
            }
 
            String[] profiles = applicationContext.getEnvironment().getActiveProfiles();
            if (!Arrays.isNullOrEmpty(profiles)) {
                if ("dev".equals(profiles[0])) {
                    return true;
                }
            }
            if (user == null || UserUtils.ANONYMOUS_ROLE_ID.equals(user.getRoleId())) {
                throw new ServletException("获取登录用户信息失败！");
            }
            return true;
        }
 
        @Override
        public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { 
        }
 
        @Override
        public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { 
        }
    }
}

@Data
@EqualsAndHashCode(callSuper = false)
public class SsoAuthentication extends AbstractAuthenticationToken {
    private static final long serialVersionUID = -1799455508626725119L; 
    private LoginUserInfo user; 
    public SsoAuthentication(LoginUserInfo user) {
        super(null);
        this.user = user;
    }
 
    @Override
    public Object getCredentials() {
        return "kxsso";
    }
 
    @Override
    public Object getPrincipal() {
        return user;
    }
 
    @Override
    public String getName() {
        return user.getName();
    }
}
public class SsoAuthenticationProcessingFilter extends OncePerRequestFilter {
    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)
            throws ServletException, IOException {
        LoginUserInfo user = (LoginUserInfo) SSOUserUtils.getCurrentLoginUser();
        SsoAuthentication auth = new SsoAuthentication(user );
        SecurityContextHolder.getContext().setAuthentication(auth);
        filterChain.doFilter(request, response);
    }
}
@Component
public class SsoAuthenticationProvider implements AuthenticationProvider {
 
    @Value("${env}")
    String env;
 
    @Override
    public Authentication authenticate(Authentication authentication) throws AuthenticationException {
        LoginUserInfo loginUserInfo = (LoginUserInfo) authentication.getPrincipal();
        /*
         * DEV环境允许匿名用户访问，方便调试，其他环境必须登录。
         */
        if (!UserUtils.ANONYMOUS_ROLE_ID.equals(loginUserInfo.getRoleId()) || "dev".equals(env)) {
            authentication.setAuthenticated(true);
        } else {
            throw new BadCredentialsException("请登录");
        }
        return authentication;
    }
 
    @Override
    public boolean supports(Class<?> authentication) {
        return SsoAuthentication.class.equals(authentication);
    }
}
@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(securedEnabled = true, prePostEnabled = true)
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
 
    protected void configure(HttpSecurity http) throws Exception {
        // 关闭session
        http.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).and();
 
        // 允许访问所有URL，通过方法保护的形式来限制访问。
        http.authorizeRequests().anyRequest().permitAll();
 
        // 注册sso filter
        http.addFilterBefore(ssoAuthenticationProcessingFilter(), UsernamePasswordAuthenticationFilter.class);
    }
 
    @Bean
    SsoAuthenticationProcessingFilter ssoAuthenticationProcessingFilter() {
        return new SsoAuthenticationProcessingFilter();
    }
}

@Aspect
@Component
public class InControllerAspect {
    @Autowired
    BeforeInControllerMethods beforeInMethods;
 
    @Pointcut("execution(public * com.kxtx.oms.portal.controller.in.*.*(..)) && @annotation(org.springframework.web.bind.annotation.RequestMapping)")
    public void hp() {
    };
 
    @Before("hp()")
    public void befor() {
        beforeInMethods.before();
    }
}
@Component
public class BeforeInControllerMethods {
    //@PreAuthorize("authenticated")要求所有访问此方法的用户必须登录
    @PreAuthorize("authenticated")
    public void before() {
    }
}
//用户信息获取
@RequestMapping("/order/submit")
public ModelAndView findMessagesForUser(@AuthenticationPrincipal CustomUser customUser) {
    // .. find messages for this user and return them ...
}