java - Spring Security 5 在 Application Runner 中调用 OAuth2 Secured API 导致 IllegalArgumentException

Question

给定以下代码，是否可以在应用程序运行器中调用受客户端凭据保护的 API？

@Bean
public ApplicationRunner test(
    WebClient.Builder builder,
    ClientRegistrationRepository clientRegistrationRepo, 
    OAuth2AuthorizedClientRepository authorizedClient) {
        return args -> {
            try {
                var oauth2 =
                    new ServletOAuth2AuthorizedClientExchangeFilterFunction(
                        clientRegistrationRepo,
                        authorizedClient);
                oauth2.setDefaultClientRegistrationId("test");
                var response = builder
                    .apply(oauth2.oauth2Configuration())
                    .build()
                    .get()
                    .uri("test")
                    .retrieve()
                    .bodyToMono(String.class)
                    .block();
                log.info("Response - {}", response);
            } catch (Exception e) {
                log.error("Failed to call test.", e);
            }
        };
    }

代码失败是因为，

java.lang.IllegalArgumentException: request cannot be null

全栈，

java.lang.IllegalArgumentException: request cannot be null
    at org.springframework.util.Assert.notNull(Assert.java:198) ~[spring-core-5.1.5.RELEASE.jar:5.1.5.RELEASE]
    at org.springframework.security.oauth2.client.web.HttpSessionOAuth2AuthorizedClientRepository.loadAuthorizedClient(HttpSessionOAuth2AuthorizedClientRepository.java:47) ~[spring-security-oauth2-client-5.1.4.RELEASE.jar:5.1.4.RELEASE]
    at org.springframework.security.oauth2.client.web.reactive.function.client.ServletOAuth2AuthorizedClientExchangeFilterFunction.populateDefaultOAuth2AuthorizedClient(ServletOAuth2AuthorizedClientExchangeFilterFunction.java:364) ~[spring-security-oauth2-client-5.1.4.RELEASE.jar:5.1.4.RELEASE]
    at org.springframework.security.oauth2.client.web.reactive.function.client.ServletOAuth2AuthorizedClientExchangeFilterFunction.lambda$null$2(ServletOAuth2AuthorizedClientExchangeFilterFunction.java:209) ~[spring-security-oauth2-client-5.1.4.RELEASE.jar:5.1.4.RELEASE]
    at org.springframework.web.reactive.function.client.DefaultWebClient$DefaultRequestBodyUriSpec.attributes(DefaultWebClient.java:234) ~[spring-webflux-5.1.5.RELEASE.jar:5.1.5.RELEASE]
    at org.springframework.web.reactive.function.client.DefaultWebClient$DefaultRequestBodyUriSpec.attributes(DefaultWebClient.java:153) ~[spring-webflux-5.1.5.RELEASE.jar:5.1.5.RELEASE]

失败的方法看起来像，

public <T extends OAuth2AuthorizedClient> T loadAuthorizedClient(
    String clientRegistrationId,  Authentication principal, HttpServletRequest request){

    Assert.hasText(clientRegistrationId, "clientRegistrationId cannot be empty");
    Assert.notNull(request, "request cannot be null");
    return (OAuth2AuthorizedClient)this
        .getAuthorizedClients(request)
        .get(clientRegistrationId);
}

这是有道理的，因为没有 HttpServletRequest 供它使用，它在应用程序启动时被调用。

除了制作我自己的空操作 OAuth2AuthorizedClientRepository 之外，还有其他解决方法吗？

//编辑，

这不是一个完全响应式(Reactive)的堆栈。它是一个 Spring Web 堆栈，其中包含 WebClient。

我很清楚 ServerOAuth2AuthorizedClientExchangeFilterFunction 适用于完全响应式堆栈并需要 ReactiveClientRegistrationRepository 和 ReactiveOauth2AuthorizedClient 由于此原因不可用处于构建在 Servlet 堆栈之上的应用程序中，而不是 react 性的。

Answer 1

由于我也偶然发现了这个问题，所以我将详细说明 Darren Forsythe's更新的答案，让其他人更容易找到:

OP 提交的问题导致 OAuth2AuthorizedClientManager 的实现能够

operating outside of a HttpServletRequest context, e.g. in a scheduled/background thread and/or in the service-tier

( from the official docs )

所述实现，AuthorizedClientServiceOAuth2AuthorizedClientManager，被传递给 ServletOAuth2AuthorizedClientExchangeFilterFunction 以替换默认的。

在我的示例中，它看起来像这样:

@Bean
public OAuth2AuthorizedClientManager authorizedClientManager(
        ClientRegistrationRepository clientRegistrationRepository,
        OAuth2AuthorizedClientService clientService)
{

    OAuth2AuthorizedClientProvider authorizedClientProvider = 
        OAuth2AuthorizedClientProviderBuilder.builder()
            .clientCredentials()
            .build();

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

    return authorizedClientManager;
}

@Bean
WebClient webClient(OAuth2AuthorizedClientManager authorizedClientManager)
{
    ServletOAuth2AuthorizedClientExchangeFilterFunction oauth2 =
        new ServletOAuth2AuthorizedClientExchangeFilterFunction(
            authorizedClientManager);
    oauth2.setDefaultClientRegistrationId("keycloak");
    return WebClient.builder().apply(oauth2.oauth2Configuration()).build();
}