限制 JWT 刷新令牌仅用于特定端点

@Service
@RequiredArgsConstructor
public class JwtTokenServiceImpl implements JwtTokenService {

    private final JwtEncoder jwtEncoder;

    @Override
    public String generateAccessToken(User user) {
        Instant now = Instant.now();
        String scope = user.getAuthorities().stream()
                .map(GrantedAuthority::getAuthority)
                .collect(Collectors.joining(" "));

        String accessScope = scope.concat(" access"); // 添加 "access" 权限

        JwtClaimsSet claims = JwtClaimsSet.builder()
                .issuer("self")
                .issuedAt(now)
                .expiresAt(now.plus(2, ChronoUnit.MINUTES))
                .subject(user.getUsername())
                .claim("roles", accessScope) // 使用 "roles" 作为权限声明名称
                .build();
        return this.jwtEncoder.encode(JwtEncoderParameters.from(claims)).getTokenValue();
    }

    @Override
    public String generateRefreshToken(User user) {
        Instant now = Instant.now();
        String scope = "ROLE_REFRESH_TOKEN";

        JwtClaimsSet claims = JwtClaimsSet.builder()
                .issuer("self")
                .issuedAt(now)
                .expiresAt(now.plus(10, ChronoUnit.MINUTES))
                .subject(user.getUsername())
                .claim("scope", scope)
                .build();
        return this.jwtEncoder.encode(JwtEncoderParameters.from(claims)).getTokenValue();
    }

    @Override
    public String parseToken(String token) {
        try {
            SignedJWT decodedJWT = SignedJWT.parse(token);
            return decodedJWT.getJWTClaimsSet().getSubject();
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return null;
    }
}

@Configuration
@RequiredArgsConstructor
@EnableWebSecurity
public class WebSecurityConfig {

    @Value("${app.chat.jwt.public.key}")
    private RSAPublicKey publicKey;

    @Value("${app.chat.jwt.private.key}")
    private RSAPrivateKey privateKey;

    @Bean
    public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
        http.cors().and().csrf().disable();

        http.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);

        http.exceptionHandling(
                exceptions ->
                        exceptions
                                .authenticationEntryPoint(new BearerTokenAuthenticationEntryPoint())
                                .accessDeniedHandler(new BearerTokenAccessDeniedHandler()));

        http.authorizeHttpRequests()
                .requestMatchers("/auth/sign-in").permitAll()
                .requestMatchers("/auth/sign-up").permitAll()
                .requestMatchers("/auth/token/refresh").permitAll() // 允许刷新令牌端点无需 "ROLE_access" 权限
                .anyRequest().hasAuthority("ROLE_access") // 需要 "ROLE_access" 权限才能访问其他端点
                .and()
                .httpBasic(Customizer.withDefaults())
                .oauth2ResourceServer(OAuth2ResourceServerConfigurer::jwt);

        return http.build();
    }

    @SneakyThrows
    @Bean
    public JwtEncoder jwtEncoder() {
        var jwk = new RSAKey.Builder(publicKey).privateKey(privateKey).build();
        var jwks = new ImmutableJWKSet<>(new JWKSet(jwk));
        return new NimbusJwtEncoder(jwks);
    }

    @SneakyThrows
    @Bean
    public JwtDecoder jwtDecoder() {
        return NimbusJwtDecoder.withPublicKey(publicKey).build();
    }

    @Bean
    public JwtAuthenticationConverter jwtAuthenticationConverter() {
        var jwtGrantedAuthoritiesConverter = new JwtGrantedAuthoritiesConverter();
        jwtGrantedAuthoritiesConverter.setAuthoritiesClaimName("roles"); // 设置权限声明名称
        jwtGrantedAuthoritiesConverter.setAuthorityPrefix("ROLE_");

        var jwtAuthenticationConverter = new JwtAuthenticationConverter();
        jwtAuthenticationConverter.setJwtGrantedAuthoritiesConverter(jwtGrantedAuthoritiesConverter);
        return jwtAuthenticationConverter;
    }

    @Bean
    public CorsFilter corsFilter() {
        UrlBasedCorsConfigurationSource source =
                new UrlBasedCorsConfigurationSource();
        CorsConfiguration config = new CorsConfiguration();
        config.setAllowCredentials(true);
        config.addAllowedOrigin("*");
        config.addAllowedHeader("*");
        config.addAllowedMethod("*");
        source.registerCorsConfiguration("/**", config);
        return new CorsFilter(source);
    }


    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Bean
    public AuthenticationManager authenticationManager(
            AuthenticationConfiguration authenticationConfiguration) throws Exception {
        return authenticationConfiguration.getAuthenticationManager();
    }
}