springsecurity oauth2.0 客户端动态跳过认证

如果您需要在客户端动态地跳过Spring Security的认证过程，可以使用Spring Security提供的`WebSecurity`对象来进行配置。以下是一个示例代码：

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

  @Autowired
  private ClientDetailsService clientDetailsService;

  @Override
  protected void configure(HttpSecurity http) throws Exception {
    http.authorizeRequests()
        .anyRequest().authenticated()
        .and()
        .oauth2Login()
        .and()
        .oauth2Client()
        .authorizationCodeGrant()
        .authorizationRequestRepository(authorizationRequestRepository())
        .and()
        .addFilterBefore(new DynamicAuthenticationFilter(clientDetailsService),
                          OAuth2AuthorizationRequestRedirectFilter.class);
  }

  private AuthorizationRequestRepository<OAuth2AuthorizationRequest> authorizationRequestRepository() {
    return new HttpSessionOAuth2AuthorizationRequestRepository();
  }
}

以上代码中，我们首先在`configure()`方法中使用`http.authorizeRequests().anyRequest().authenticated()`来配置所有请求都需要进行认证。接着使用`oauth2Login()`和`oauth2Client()`来配置OAuth2登录和客户端认证。在客户端认证的配置中，我们使用了`authorizationCodeGrant()`来指定使用授权码模式进行认证，同时使用`authorizationRequestRepository()`来指定授权请求的存储方式。

最后，我们使用`addFilterBefore()`方法来添加一个自定义的`DynamicAuthenticationFilter`过滤器，在该过滤器中可以动态地跳过Spring Security的认证过程。`DynamicAuthenticationFilter`的示例代码如下：

public class DynamicAuthenticationFilter extends OncePerRequestFilter {

  private final ClientDetailsService clientDetailsService;

  public DynamicAuthenticationFilter(ClientDetailsService clientDetailsService) {
    this.clientDetailsService = clientDetailsService;
  }

  @Override
  protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
    String clientId = request.getParameter("client_id");
    if (clientId != null) {
      try {
        ClientDetails client = clientDetailsService.loadClientByClientId(clientId);
        Collection<String> authorizedGrantTypes = client.getAuthorizedGrantTypes();
        if (authorizedGrantTypes.contains("client_credentials")) {
          // 如果客户端授权类型中包含client_credentials，则跳过认证
          filterChain.doFilter(request, response);
          return;
        }
      } catch (ClientRegistrationException e) {
        // ignore
      }
    }
    // 否则继续执行Spring Security的认证过程
    super.doFilter(request, response, filterChain);
  }
}

在`DynamicAuthenticationFilter`中，我们首先从请求参数中获取`client_id`，然后使用`clientDetailsService.loadClientByClientId()`方法加载客户端的详细信息。如果客户端的授权类型中包含`client_credentials`，则可以跳过Spring Security的认证过程；否则继续执行Spring Security的认证过程。