[java] OAuth2RestTemplate의 Spring Security 5 교체

안녕하세요 아마 너무 늦었지만 RestTemplate은 Spring Security 5에서 여전히 지원됩니다.

client_credentials 플로우를 사용하려면 다음 구성을 사용하십시오.

application.yml

spring:
  security:
    oauth2:
      resourceserver:
        jwt:
          jwk-set-uri: ${okta.oauth2.issuer}/v1/keys
      client:
        registration:
          okta:
            client-id: ${okta.oauth2.clientId}
            client-secret: ${okta.oauth2.clientSecret}
            scope: "custom-scope"
            authorization-grant-type: client_credentials
            provider: okta
        provider:
          okta:
            authorization-uri: ${okta.oauth2.issuer}/v1/authorize
            token-uri: ${okta.oauth2.issuer}/v1/token

OauthResTemplate에 대한 구성

@Configuration
@RequiredArgsConstructor
public class OAuthRestTemplateConfig {

    public static final String OAUTH_WEBCLIENT = "OAUTH_WEBCLIENT";

    private final RestTemplateBuilder restTemplateBuilder;
    private final OAuth2AuthorizedClientService oAuth2AuthorizedClientService;
    private final ClientRegistrationRepository clientRegistrationRepository;

    @Bean(OAUTH_WEBCLIENT)
    RestTemplate oAuthRestTemplate() {
        var clientRegistration = clientRegistrationRepository.findByRegistrationId(Constants.OKTA_AUTH_SERVER_ID);

        return restTemplateBuilder
                .additionalInterceptors(new OAuthClientCredentialsRestTemplateInterceptorConfig(authorizedClientManager(), clientRegistration))
                .setReadTimeout(Duration.ofSeconds(5))
                .setConnectTimeout(Duration.ofSeconds(1))
                .build();
    }

    @Bean
    OAuth2AuthorizedClientManager authorizedClientManager() {
        var authorizedClientProvider = OAuth2AuthorizedClientProviderBuilder.builder()
                .clientCredentials()
                .build();

        var authorizedClientManager = new AuthorizedClientServiceOAuth2AuthorizedClientManager(clientRegistrationRepository, oAuth2AuthorizedClientService);
        authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider);

        return authorizedClientManager;
    }

}

요격기

public class OAuthClientCredentialsRestTemplateInterceptor implements ClientHttpRequestInterceptor {

    private final OAuth2AuthorizedClientManager manager;
    private final Authentication principal;
    private final ClientRegistration clientRegistration;

    public OAuthClientCredentialsRestTemplateInterceptor(OAuth2AuthorizedClientManager manager, ClientRegistration clientRegistration) {
        this.manager = manager;
        this.clientRegistration = clientRegistration;
        this.principal = createPrincipal();
    }

    @Override
    public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
        OAuth2AuthorizeRequest oAuth2AuthorizeRequest = OAuth2AuthorizeRequest
                .withClientRegistrationId(clientRegistration.getRegistrationId())
                .principal(principal)
                .build();
        OAuth2AuthorizedClient client = manager.authorize(oAuth2AuthorizeRequest);
        if (isNull(client)) {
            throw new IllegalStateException("client credentials flow on " + clientRegistration.getRegistrationId() + " failed, client is null");
        }

        request.getHeaders().add(HttpHeaders.AUTHORIZATION, BEARER_PREFIX + client.getAccessToken().getTokenValue());
        return execution.execute(request, body);
    }

    private Authentication createPrincipal() {
        return new Authentication() {
            @Override
            public Collection<? extends GrantedAuthority> getAuthorities() {
                return Collections.emptySet();
            }

            @Override
            public Object getCredentials() {
                return null;
            }

            @Override
            public Object getDetails() {
                return null;
            }

            @Override
            public Object getPrincipal() {
                return this;
            }

            @Override
            public boolean isAuthenticated() {
                return false;
            }

            @Override
            public void setAuthenticated(boolean isAuthenticated) throws IllegalArgumentException {
            }

            @Override
            public String getName() {
                return clientRegistration.getClientId();
            }
        };
    }
}

이것은 첫 번째 호출에서 그리고 토큰이 만료 될 때마다 access_token을 생성합니다. OAuth2AuthorizedClientManager가이 모든 것을 관리합니다

답변