SpringSecurity核心配置
/**
* 对SpringSecurity的配置的扩展，支持自定义白名单资源路径和查询用户逻辑
*/
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Autowired(required = false)
private DynamicSecurityService dynamicSecurityService;
@Override
protected void configure(HttpSecurity httpSecurity) throws Exception {
ExpressionUrlAuthorizationConfigurer<HttpSecurity>.ExpressionInterceptUrlRegistry registry = httpSecurity
.authorizeRequests();
//不需要保护的资源路径允许访问
for (String url : ignoreUrlsConfig().getUrls()) {
registry.antMatchers(url).permitAll();
}
//允许跨域请求的OPTIONS请求
registry.antMatchers(HttpMethod.OPTIONS)
.permitAll();
// 任何请求需要身份认证
registry.and()
.authorizeRequests()
.anyRequest()
.authenticated()
// 关闭跨站请求防护及不使用session
.and()
.csrf()
.disable()
.sessionManagement()
/***
* Spring Security下的枚举SessionCreationPolicy,管理session的创建策略
*
*
* ALWAYS
*
* 总是创建HttpSession
*
* IF_REQUIRED
*
* Spring Security只会在需要时创建一个HttpSession
*
* NEVER
*
* Spring Security不会创建HttpSession，但如果它已经存在，将可以使用HttpSession
*
* STATELESS
*
* Spring Security永远不会创建HttpSession，它不会使用HttpSession来获取SecurityContext
*/
.sessionCreationPolicy(SessionCreationPolicy.STATELESS)
// 自定义权限拒绝处理类
.and()
.exceptionHandling()
.accessDeniedHandler(restfulAccessDeniedHandler())
.authenticationEntryPoint(restAuthenticationEntryPoint())
// 自定义权限拦截器JWT过滤器
.and()
/**
* 在用户名和密码校验前添加的过滤器，如果请求中有jwt的token且有效，会取出token中的用户名，然后调用SpringSecurity的API进行登录操作。
*/
.addFilterBefore(jwtAuthenticationTokenFilter(), UsernamePasswordAuthenticationFilter.class);
//有动态权限配置时添加动态权限校验过滤器
if(dynamicSecurityService!=null){
registry.and().addFilterBefore(dynamicSecurityFilter(), FilterSecurityInterceptor.class);
}
}
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(userDetailsService())
.passwordEncoder(passwordEncoder());
}
@Bean
public PasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder();
}
@Bean
public JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter() {
return new JwtAuthenticationTokenFilter();
}
@Bean
@Override
public AuthenticationManager authenticationManagerBean() throws Exception {
return super.authenticationManagerBean();
}
@Bean
public RestfulAccessDeniedHandler restfulAccessDeniedHandler() {
return new RestfulAccessDeniedHandler();
}
@Bean
public RestAuthenticationEntryPoint restAuthenticationEntryPoint() {
return new RestAuthenticationEntryPoint();
}
@Bean
public IgnoreUrlsConfig ignoreUrlsConfig() {
return new IgnoreUrlsConfig();
}
@Bean
public JwtTokenUtil jwtTokenUtil() {
return new JwtTokenUtil();
}
@ConditionalOnBean(name = "dynamicSecurityService")
@Bean
public DynamicAccessDecisionManager dynamicAccessDecisionManager() {
return new DynamicAccessDecisionManager();
}
@ConditionalOnBean(name = "dynamicSecurityService")
@Bean
public DynamicSecurityFilter dynamicSecurityFilter() {
return new DynamicSecurityFilter();
}
@ConditionalOnBean(name = "dynamicSecurityService")
@Bean
public DynamicSecurityMetadataSource dynamicSecurityMetadataSource() {
return new DynamicSecurityMetadataSource();
}
}
jwt:
tokenHeader: Authorization #JWT存储的请求头
secret: mall-admin-secret #JWT加解密使用的密钥
expiration: 604800 #JWT的超期限时间(60*60*24*7)
tokenHead: 'Bearer ' #JWT负载中拿到开头
secure:
ignored:
urls: #安全路径白名单
- /swagger-ui.html
- /swagger-resources/**
- /swagger/**
- /**/v2/api-docs
- /**/*.js
- /**/*.css
- /**/*.png
- /**/*.ico
- /webjars/springfox-swagger-ui/**
- /actuator/**
- /druid/**
- /admin/login
- /admin/register
- /admin/info
- /admin/logout
- /minio/upload
- /admin/updatePassword
权限拦截
当客户端登录或者访问接口资源的时候，服务端先进行拦截，具体拦截代码如下：
/**
* JWT登录授权过滤器
*/
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter {
private static final Logger LOGGER = LoggerFactory.getLogger(JwtAuthenticationTokenFilter.class);
@Autowired
private UserDetailsService userDetailsService;
@Autowired
private JwtTokenUtil jwtTokenUtil;
@Value("${jwt.tokenHeader}")
private String tokenHeader;
@Value("${jwt.tokenHead}")
private String tokenHead;
@Override
protected void doFilterInternal(HttpServletRequest request,
HttpServletResponse response,
FilterChain chain) throws ServletException, IOException {
//获取用户请求头
String authHeader = request.getHeader(this.tokenHeader);
if (authHeader != null && authHeader.startsWith(this.tokenHead)) {
String authToken = authHeader.substring(this.tokenHead.length());// The part after "Bearer "
String username = jwtTokenUtil.getUserNameFromToken(authToken);
LOGGER.info("checking username:{}", username);
if (username != null && SecurityContextHolder.getContext().getAuthentication() == null) {
UserDetails userDetails = this.userDetailsService.loadUserByUsername(username);
if (jwtTokenUtil.validateToken(authToken, userDetails)) {
UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(userDetails, null, userDetails.getAuthorities());
authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
LOGGER.info("authenticated user:{}", username);
//为当前线程注入用户信息，后面线程获取用户信息的时候便很方便获取到用户信息
SecurityContextHolder.getContext().setAuthentication(authentication);
}
}
}
chain.doFilter(request, response);
}
}
/**
* 动态权限过滤器，用于实现基于路径的动态权限过滤
* Created by macro on 2020/2/7.
*/
public class DynamicSecurityFilter extends AbstractSecurityInterceptor implements Filter {
@Autowired
private DynamicSecurityMetadataSource dynamicSecurityMetadataSource;
@Autowired
private IgnoreUrlsConfig ignoreUrlsConfig;
@Autowired
public void setMyAccessDecisionManager(DynamicAccessDecisionManager dynamicAccessDecisionManager) {
super.setAccessDecisionManager(dynamicAccessDecisionManager);
}
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
HttpServletRequest request = (HttpServletRequest) servletRequest;
FilterInvocation fi = new FilterInvocation(servletRequest, servletResponse, filterChain);
//OPTIONS请求直接放行
if(request.getMethod().equals(HttpMethod.OPTIONS.toString())){
fi.getChain().doFilter(fi.getRequest(), fi.getResponse());
return;
}
//白名单请求直接放行
PathMatcher pathMatcher = new AntPathMatcher();
for (String path : ignoreUrlsConfig.getUrls()) {
if(pathMatcher.match(path,request.getRequestURI())){
fi.getChain().doFilter(fi.getRequest(), fi.getResponse());
return;
}
}
//此处会调用AccessDecisionManager中的decide方法进行鉴权操作
InterceptorStatusToken token = super.beforeInvocation(fi);
try {
fi.getChain().doFilter(fi.getRequest(), fi.getResponse());
} finally {
super.afterInvocation(token, null);
}
}
@Override
public void destroy() {
}
@Override
public Class<?> getSecureObjectClass() {
return FilterInvocation.class;
}
@Override
public SecurityMetadataSource obtainSecurityMetadataSource() {
return dynamicSecurityMetadataSource;
}
}
/**
* 动态权限决策管理器，用于判断用户是否有访问权限
* Created by macro on 2020/2/7.
*/
public class DynamicAccessDecisionManager implements AccessDecisionManager {
@Override
public void decide(Authentication authentication, Object object,
Collection<ConfigAttribute> configAttributes) throws AccessDeniedException, InsufficientAuthenticationException {
// 当接口未被配置资源时直接放行
if (CollUtil.isEmpty(configAttributes)) {
return;
}
Iterator<ConfigAttribute> iterator = configAttributes.iterator();
while (iterator.hasNext()) {
ConfigAttribute configAttribute = iterator.next();
//需要访问的资源
String needAuthority = configAttribute.getAttribute();
//authentication.getAuthorities() 用户具有的资源 来自于JwtAuthenticationTokenFilter中所加入的动态资源
for (GrantedAuthority grantedAuthority : authentication.getAuthorities()) {
if (needAuthority.trim().equals(grantedAuthority.getAuthority())) {
return;
}
}
}
throw new AccessDeniedException("抱歉，您没有访问权限");
}
@Override
public boolean supports(ConfigAttribute configAttribute) {
return true;
}
@Override
public boolean supports(Class<?> aClass) {
return true;
}
}
来源：oschina
链接：https://my.oschina.net/jiansin/blog/4714939