spring security oauth2 资源服务器WebAsyncTask/DeferredResult接口调用报错InsufficientAuthenticationException

异常现象

• 访问非WebAsyncTask接口正常
• 访问WebAsyncTask/DeferredResult接口成功执行代码逻辑，但返回信息抛出异常InsufficientAuthenticationException
• 服务报错：
  Could not fetch user details: class org.springframework.beans.factory.BeanCreationException, Error creating bean with name ‘scopedTarget.oauth2ClientContext’: Scope ‘request’ is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No thread-bound request found:
  Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.

spring security 版本2.3.8

资源服务配置

security:
  oauth2:
    client:
      client-id: client1
      client-secret: client1pwd
      access-token-uri: 'http://localhost:11000/oauth/token'
      user-authorization-uri: 'http://localhost:11000/oauth/authorize'
      scope: all
    resource:
      token-info-uri: 'http://localhost:11000/oauth/check_token'
      user-info-uri: 'http://localhost:11000/oauth/check_user'
      prefer-token-info: false

接口定义

@GetMapping("/result1")
public static Object result1() {
    return new WebAsyncTask(() -> {
        return "hello1";
    });
}
@GetMapping("/result2")
public static Object result2() {
    return "hello2";
}

源码跟踪

调用WebAsyncTask/DeferredResult接口时会进项两次认证：

1. 处理传入请求时，可以正常完成认证获取用户信息。
2. 处理请求响应时，由于使用了WebAsyncTask，响应处理使用了另一个线程，而非web请求处理线程，此线程中无法获取oauth2ClientContext。

• org.springframework.boot.autoconfigure.security.oauth2.resource.UserInfoTokenServices

public class UserInfoTokenServices implements ResourceServerTokenServices {
...
	private Map<String, Object> getMap(String path, String accessToken) {
		if (this.logger.isDebugEnabled()) {
			this.logger.debug("Getting user info from: " + path);
		}
		try {
			OAuth2RestOperations restTemplate = this.restTemplate;
			if (restTemplate == null) {
				BaseOAuth2ProtectedResourceDetails resource = new BaseOAuth2ProtectedResourceDetails();
				resource.setClientId(this.clientId);
				restTemplate = new OAuth2RestTemplate(resource);
			}
			// 在返回线程中这里将报错
			OAuth2AccessToken existingToken = restTemplate.getOAuth2ClientContext()
					.getAccessToken();
			if (existingToken == null || !accessToken.equals(existingToken.getValue())) {
				DefaultOAuth2AccessToken token = new DefaultOAuth2AccessToken(
						accessToken);
				token.setTokenType(this.tokenType);
				restTemplate.getOAuth2ClientContext().setAccessToken(token);
			}
			return restTemplate.getForEntity(path, Map.class).getBody();
		}
		catch (Exception ex) {
			this.logger.warn("Could not fetch user details: " + ex.getClass() + ", "
					+ ex.getMessage());
			return Collections.<String, Object>singletonMap("error",
					"Could not fetch user details");
		}
	}
}

• org.springframework.boot.autoconfigure.security.oauth2.client.OAuth2RestOperationsConfiguration

public class OAuth2RestOperationsConfiguration {
	@Configuration
	@ConditionalOnMissingBean(OAuth2ClientConfiguration.class)
	@Conditional({ OAuth2ClientIdCondition.class, NoClientCredentialsCondition.class })
	@Import(OAuth2ProtectedResourceDetailsConfiguration.class)
	protected static class RequestScopedConfiguration {

		@Bean
		@Scope(value = "request", proxyMode = ScopedProxyMode.INTERFACES)
		public DefaultOAuth2ClientContext oauth2ClientContext() {
			DefaultOAuth2ClientContext context = new DefaultOAuth2ClientContext(
					new DefaultAccessTokenRequest());
			Authentication principal = SecurityContextHolder.getContext()
					.getAuthentication();
			if (principal instanceof OAuth2Authentication) {
				OAuth2Authentication authentication = (OAuth2Authentication) principal;
				Object details = authentication.getDetails();
				if (details instanceof OAuth2AuthenticationDetails) {
					OAuth2AuthenticationDetails oauthsDetails = (OAuth2AuthenticationDetails) details;
					String token = oauthsDetails.getTokenValue();
					context.setAccessToken(new DefaultOAuth2AccessToken(token));
				}
			}
			return context;
		}

	}
}

OAuth2ClientContextBean生命周期为request，因此在非request线程中无法获取OAuth2ClientContext

解决方案

1. 使用token-info-url，并实现userDetailsService获取用户信息，而非user-info-url
2. 不使用WebAsyncTask/DeferredResult