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我有一个 SpringBoot 2.4.2 应用程序,它使用 JSON Web token (JWT,有时发音为/dʒɒt/,与英语单词“jot”[1] 相同)是 Internet 提议的标准,用于创建具有可选签名和/或可选的数据加密,其有效负载包含断言一定数量的声明的 JSON。 token 使用私有(private) key 或公钥/私钥进行签名。例如,服务器可以生成具有“以管理员身份登录”声明的 token 并将其提供给客户端。然后客户端可以使用该 token 来证明它以管理员身份登录。
这是我的 WebSecurityConfig:
@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
private static final String SALT = "fd23451*(_)nof";
private final JwtAuthenticationEntryPoint unauthorizedHandler;
private final JwtTokenUtil jwtTokenUtil;
private final UserSecurityService userSecurityService;
@Value("${jwt.header}")
private String tokenHeader;
public ApiWebSecurityConfig(JwtAuthenticationEntryPoint unauthorizedHandler, JwtTokenUtil jwtTokenUtil,
UserSecurityService userSecurityService) {
this.unauthorizedHandler = unauthorizedHandler;
this.jwtTokenUtil = jwtTokenUtil;
this.userSecurityService = userSecurityService;
}
@Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
auth
.userDetailsService(userSecurityService)
.passwordEncoder(passwordEncoder());
}
@Bean
public BCryptPasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder(12, new SecureRandom(SALT.getBytes()));
}
@Bean
@Override
public AuthenticationManager authenticationManagerBean() throws Exception {
return super.authenticationManagerBean();
}
@Override
protected void configure(HttpSecurity httpSecurity) throws Exception {
httpSecurity
// we don't need CSRF because our token is invulnerable
.csrf().disable()
.exceptionHandling().authenticationEntryPoint(unauthorizedHandler).and()
// don't create session
.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).and()
.authorizeRequests()
// Un-secure H2 Database
.antMatchers("/h2-console/**/**").permitAll()
.antMatchers("/api/v1/users").permitAll()
.anyRequest().authenticated();
// Custom JWT based security filter
JwtAuthorizationTokenFilter authenticationTokenFilter = new JwtAuthorizationTokenFilter(userDetailsService(), jwtTokenUtil, tokenHeader);
httpSecurity
.addFilterBefore(authenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);
// disable page caching
httpSecurity
.headers()
.frameOptions()
.sameOrigin() // required to set for H2 else H2 Console will be blank.
.cacheControl();
}
@Override
public void configure(WebSecurity web) {
// AuthenticationTokenFilter will ignore the below paths
web
.ignoring()
.antMatchers(
HttpMethod.POST,
"/api/v1/users"
);
}
}
这是我的过滤器:
@Provider
@Slf4j
public class JwtAuthorizationTokenFilter extends OncePerRequestFilter {
private UserDetailsService userDetailsService;
private JwtTokenUtil jwtTokenUtil;
private String tokenHeader;
public JwtAuthorizationTokenFilter(UserDetailsService userDetailsService, JwtTokenUtil jwtTokenUtil, String tokenHeader) {
this.userDetailsService = userDetailsService;
this.jwtTokenUtil = jwtTokenUtil;
this.tokenHeader = tokenHeader;
}
@Override
protected boolean shouldNotFilter(HttpServletRequest request) {
return new AntPathMatcher().match("/api/v1/users", request.getServletPath());
}
@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain) throws ServletException,
IOException {
log.info("processing authentication for '{}'", request.getRequestURL());
final String requestHeader = request.getHeader(this.tokenHeader);
String username = null;
String authToken = null;
if (requestHeader != null && requestHeader.startsWith("Bearer ")) {
authToken = requestHeader.substring(7);
try {
username = jwtTokenUtil.getUsernameFromToken(authToken);
} catch (IllegalArgumentException e) {
logger.info("an error occured during getting username from token", e);
} catch (ExpiredJwtException e) {
logger.info("the token is expired and not valid anymore", e);
}
} else {
logger.info("couldn't find bearer string, will ignore the header");
}
log.info("checking authentication for user '{}'", username);
if (username != null && SecurityContextHolder.getContext().getAuthentication() == null) {
logger.info("security context was null, so authorizating user");
// It is not compelling necessary to load the use details from the database. You could also store the information
// in the token and read it from it. It's up to you ;)
UserDetails userDetails = this.userDetailsService.loadUserByUsername(username);
// For simple validation it is completely sufficient to just check the token integrity. You don't have to call
// the database compellingly. Again it's up to you ;)
if (jwtTokenUtil.validateToken(authToken, userDetails)) {
UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(userDetails, null, userDetails.getAuthorities());
authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
log.info("authorizated user '{}', setting security context", username);
SecurityContextHolder.getContext().setAuthentication(authentication);
}
}
chain.doFilter(request, response);
}
}
和
@Component
@Slf4j
public class JwtAuthenticationEntryPoint implements AuthenticationEntryPoint, Serializable {
private static final long serialVersionUID = -8970718410437077606L;
@Override
public void commence(HttpServletRequest request,
HttpServletResponse response,
AuthenticationException authException) throws IOException {
log.info("user tries to access a secured REST resource without supplying any credentials");
// This is invoked when user tries to access a secured REST resource without supplying any credentials
// We should just send a 401 Unauthorized response because there is no 'login page' to redirect to
response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "Unauthorized");
}
}
这是我启动应用程序时的控制台:
18:02:51.974 [restartedMain] DEBUG com.agrumh.Application - Running with Spring Boot v2.4.2, Spring v5.3.3
18:02:51.974 [restartedMain] INFO com.agrumh.Application - No active profile set, falling back to default profiles: default
18:02:57.383 [restartedMain] INFO o.s.s.web.DefaultSecurityFilterChain - Will secure Ant [pattern='/api/v1/users', POST] with []
18:02:57.414 [restartedMain] DEBUG o.s.s.w.a.e.ExpressionBasedFilterInvocationSecurityMetadataSource - Adding web access control expression [permitAll] for Ant [pattern='/h2-console/**/**']
18:02:57.415 [restartedMain] DEBUG o.s.s.w.a.e.ExpressionBasedFilterInvocationSecurityMetadataSource - Adding web access control expression [permitAll] for Ant [pattern='/api/v1/users']
18:02:57.416 [restartedMain] DEBUG o.s.s.w.a.e.ExpressionBasedFilterInvocationSecurityMetadataSource - Adding web access control expression [authenticated] for any request
18:02:57.422 [restartedMain] INFO o.s.s.web.DefaultSecurityFilterChain - Will secure any request with [org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter@24c68fed, org.springframework.security.web.context.SecurityContextPersistenceFilter@1537eb0a, org.springframework.security.web.header.HeaderWriterFilter@95de45c, org.springframework.security.web.authentication.logout.LogoutFilter@733cf550, com.dispacks.config.JwtAuthorizationTokenFilter@538a96c8, org.springframework.security.web.savedrequest.RequestCacheAwareFilter@8d585b2, org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter@784cf061, org.springframework.security.web.authentication.AnonymousAuthenticationFilter@64915f19, org.springframework.security.web.session.SessionManagementFilter@21f180d0, org.springframework.security.web.access.ExceptionTranslationFilter@2b153a28, org.springframework.security.web.access.intercept.FilterSecurityInterceptor@4942d157]
18:02:58.619 [restartedMain] INFO com.dispacks.DispacksApplication - Started DispacksApplication in 6.974 seconds (JVM running for 7.697)
18:04:03.685 [http-nio-1133-exec-1] DEBUG o.s.security.web.FilterChainProxy - Securing POST /error
18:04:03.687 [http-nio-1133-exec-1] DEBUG o.s.s.w.c.SecurityContextPersistenceFilter - Set SecurityContextHolder to empty SecurityContext
18:04:03.689 [http-nio-1133-exec-1] DEBUG o.s.s.w.a.AnonymousAuthenticationFilter - Set SecurityContextHolder to anonymous SecurityContext
18:04:03.694 [http-nio-1133-exec-1] DEBUG o.s.s.w.a.i.FilterSecurityInterceptor - Failed to authorize filter invocation [POST /error] with attributes [authenticated]
18:04:03.698 [http-nio-1133-exec-1] INFO c.d.s.JwtAuthenticationEntryPoint - user tries to access a secured REST resource without supplying any credentials
18:04:03.699 [http-nio-1133-exec-1] DEBUG o.s.s.w.c.SecurityContextPersistenceFilter - Cleared SecurityContextHolder to complete request
但是当我使用 Postman 访问时,我遇到了这个错误:
22:58:33.562 [http-nio-1133-exec-2] WARN o.s.w.s.m.s.DefaultHandlerExceptionResolver - Resolved [org.springframework.web.HttpMediaTypeNotSupportedException: Content type 'text/plain' not supported]
22:58:33.579 [http-nio-1133-exec-2] INFO c.d.s.JwtAuthenticationEntryPoint - user tries to access a secured REST resource without supplying any credentials
最佳答案
授权和认证不同
邮政/api/v1/users
被允许,因为资源 POST 不需要被授权访问。
在您的代码中,
@Override
public void commence(HttpServletRequest request,
HttpServletResponse response,
AuthenticationException authException // AuthenticationException means authentication failed, not "without supplying any credentials".
) throws IOException {
// Break point here, or print authException.
log.info("user tries to access a secured REST resource without supplying any credentials"); // Wrong message. You can say "Authentication failed.", or log.info(authException.getMessage()).
response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "Unauthorized");
}
访问
/error
时实际发生身份验证错误资源。
18:04:03.694 [http-nio-1133-exec-1] DEBUG o.s.s.w.a.i.FilterSecurityInterceptor - Failed to authorize filter invocation [POST /error] with attributes [authenticated]
我假设发生了一些错误,您的应用程序将您重定向到
/error
,但
/error
受到保护。所以 authenticationException 发生在
/error
.
/error
之前 .permitAll()
. 关于Spring Boot 安全性 + JWT,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/67169291/
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