如何拦截REST端点以接收所有标头？

Question

我当前的代码是

@Path("login")
@RequestScoped
public class LoginResource {

    @GET
    @SecurityChecked
    public Response getUser(@HeaderParam("AUTH") @Nonnull final String authToken) {
        return Response.ok("authenticated successfully.").build();
    }
}

并且@SecurityChecked是自定义注释

import java.lang.annotation.ElementType;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import javax.interceptor.InterceptorBinding;

@Inherited
@InterceptorBinding
@Target({ ElementType.TYPE, ElementType.METHOD })
@Retention(RetentionPolicy.RUNTIME)
public @interface SecurityChecked {

}

和拦截器类为

@Interceptor
@SecurityChecked
public class SecurityCheckInterceptor {
    private static final Logger LOGGER = LoggerFactory.getLogger("SecurityCheckInterceptor");

    @AroundInvoke
    public Object validateUser(final InvocationContext context) throws Exception {

        final Object[] params = context.getParameters();

        LOGGER.info("Authentication token: " + Arrays.toString(params));
        return context.proceed();
    }
}

当我运行它时，我看到

 Authentication token: [1a629d035831feadOO4uFReLyEW8aTmrCS]

问题？
-在资源类中，我必须传递@HeaderParam参数
-如何读取HTTP来自客户端的所有标头？

理想？
-如果getUser()不@HeaderParam输入任何内容，并且
-拦截器应该能够为您提供所有HTTP标题

我怎样才能做到这一点？

Answer 1

我已经通过修改我拥有的拦截器解决了这个问题，以下是代码

注解

@Inherited
@InterceptorBinding
@Target({ ElementType.TYPE, ElementType.METHOD })
@Retention(RetentionPolicy.RUNTIME)
public @interface SecurityChecked {

}

资源类别

public class SecureResource {

    @GET
    @SecurityChecked
    public Response getUser() {
        return Response.ok("authenticated successfully!").build();
    }
}

拦截器类

@Interceptor
@Provider
@ServerInterceptor
@SecurityChecked
public class SecurityCheckInterceptor implements PreProcessInterceptor, AcceptedByMethod {
    private static final Logger LOGGER = LoggerFactory.getLogger(SecurityCheckInterceptor.class);

    @Nullable
    @Override
    public ServerResponse preProcess(final HttpRequest request, final ResourceMethod method) throws Failure, WebApplicationException {
        final List<String> authToken = request.getHttpHeaders().getRequestHeader("X-AUTH");

        if (authToken == null || !isValidToken(authToken.get(0))) {
            final ServerResponse serverResponse = new ServerResponse();
            serverResponse.setStatus(Response.Status.UNAUTHORIZED.getStatusCode());
            return serverResponse;
        }

        return null;
    }

    private static boolean isValidToken(@Nonnull final String authToken) {
        LOGGER.info("validating token: " + authToken);
        return true;
    }

    @SuppressWarnings("rawtypes")
    @Override
    public boolean accept(final Class declaring, final Method method) {
        // return declaring.isAnnotationPresent(SecurityChecked.class); // if annotation on class
        return method.isAnnotationPresent(SecurityChecked.class);
    }
}

然后通过在JBoss中部署资源类并在命令行上发出以下命令来运行集成测试

curl --header 'X-AUTH: 1a629d035831feadOOO4uFReLyEW8aTmrCS' http://localhost:8080/market-1.0-SNAPSHOT/rest/login
curl --header 'InvalidHeader: InvalidHeaderValue' http://localhost:8080/market-1.0-SNAPSHOT/rest/login