spring webflux 的资源服务器范围不足

Question

我在 spring-boot 2.1.3.RELEASE 中设置使用 Webflux 的 ResourceServer 时遇到问题。用于身份验证的相同令牌在不使用 Webflux 的资源服务器上工作正常，如果我设置 .permitAll() 它也可以工作（很明显）。这是我的资源服务器配置

授权服务器使用 jwt 令牌存储。

@EnableWebFluxSecurity
public class ResourceServerConfig {

  @Value("${security.oauth2.resource.jwt.key-value}")
  private String publicKey;
  @Autowired Environment env;
  @Bean
  SecurityWebFilterChain springSecurityFilterChain(ServerHttpSecurity http) throws Exception {
    http
        .authorizeExchange()
        .pathMatchers("/availableInspections/**").hasRole("READ_PRIVILEGE")
        .anyExchange().authenticated()
        .and()
        .oauth2ResourceServer()
        .jwt()
        .jwtDecoder(reactiveJwtDecoder())
    ;
    return http.build();
  }

@Bean
public ReactiveJwtDecoder reactiveJwtDecoder() throws Exception{
    return new NimbusReactiveJwtDecoder(getPublicKeyFromString(publicKey));
  }

public static RSAPublicKey getPublicKeyFromString(String key) throws IOException, GeneralSecurityException {
    String publicKeyPEM = key;
    publicKeyPEM = publicKeyPEM.replace("-----BEGIN PUBLIC KEY-----\n", "");
    publicKeyPEM = publicKeyPEM.replace("-----END PUBLIC KEY-----", "");
    byte[] encoded = Base64.getMimeDecoder().decode(publicKeyPEM);
    KeyFactory kf = KeyFactory.getInstance("RSA");
    RSAPublicKey pubKey = (RSAPublicKey) kf.generatePublic(new X509EncodedKeySpec(encoded));
    return pubKey;
  }
}

我得到的错误是

WWW-Authenticate: Bearer error="insufficient_scope", error_description="The token provided has insufficient scope [read] for this request", error_uri="https://tools.ietf.org/html/rfc6750#section-3.1", scope="read"

我已验证令牌具有所需的范围...

我需要 change/add 什么才能正确读取我的令牌？

Answer 1

Spring 似乎只添加了 jwt 令牌中 scope 下的内容，忽略了 authorities 中的所有内容 - 因此它们不能用于 webflux 资源服务器，除非我们扩展 JwtAuthenticationConverter 以在令牌中添加 from authorities（或其他声明）。在安全配置中，我添加了 jwtAuthenticationConverter

http
// path config like above
.oauth2ResourceServer()
.jwt()
.jwtDecoder(reactiveJwtDecoder())
.jwtAuthenticationConverter(converter())

并已覆盖 JwtAuthenticationConverter 以包括 authorities 授予的权限：

public class MyJwtAuthenticationConverter extends JwtAuthenticationConverter implements Converter<Jwt, AbstractAuthenticationToken> {
    private static final String SCOPE_AUTHORITY_PREFIX = "SCOPE_";

    private static final Collection<String> WELL_KNOWN_SCOPE_ATTRIBUTE_NAMES =
            Arrays.asList("scope", "scp", "authorities"); // added authorities


    protected Collection<GrantedAuthority> extractAuthorities(Jwt jwt) {
        return this.getScopes(jwt)
                        .stream()
                        .map(authority -> SCOPE_AUTHORITY_PREFIX + authority)
                        .map(SimpleGrantedAuthority::new)
                        .collect(Collectors.toList());
    }

    private Collection<String> getScopes(Jwt jwt) {
      Collection<String> authorities = new ArrayList<>();
        // add to collection instead of returning early
        for ( String attributeName : WELL_KNOWN_SCOPE_ATTRIBUTE_NAMES ) {
            Object scopes = jwt.getClaims().get(attributeName);
            if (scopes instanceof String) {
                if (StringUtils.hasText((String) scopes)) {
                    authorities.addAll(Arrays.asList(((String) scopes).split(" ")));
                }
            } else if (scopes instanceof Collection) {
                authorities.addAll((Collection<String>) scopes);
            }
        }

        return authorities;
    }
}

Answer 2

有点晚了，但更简单的解决方案可能是（在 kotlin 中，但很容易翻译成 java）：

class CustomJwtAuthenticationConverter : Converter<Jwt, AbstractAuthenticationToken> {

  private val jwtGrantedAuthoritiesConverter = JwtGrantedAuthoritiesConverter()

  override fun convert(source: Jwt): AbstractAuthenticationToken {
    val scopes = jwtGrantedAuthoritiesConverter.convert(source)
    val authorities = source.getClaimAsStringList("authorities")?.map { SimpleGrantedAuthority(it) }
    return JwtAuthenticationToken(source, scopes.orEmpty() + authorities.orEmpty())
  }
}

然后向 WebSecurityConfigurerAdapter 提供实现，例如：

@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
@Configuration
class ResourceServerConfig : WebSecurityConfigurerAdapter() {

    override fun configure(http: HttpSecurity) {
        http {
            oauth2ResourceServer { 
                jwt { 
                    jwtDecoder = reactiveJwtDecoder()
                    jwtAuthenticationConverter = CustomJwtAuthenticationConverter() 
                } 
            }
        }
    }
}

spring webflux 的资源服务器范围不足

Insufficient scope in resource server with spring webflux

java

oauth-2.0

spring-boot

spring-webflux