Question

我在c ++ grpc项目中创建了一个自定义的Inceptceptor，以检查Authorization Bearer令牌是否有效或用户已通过身份验证，因此，我创建了一个拦截器来获取元数据并验证令牌，如果令牌可以的话，我执行继续使用方法，此时一切正常，但是...

当令牌无效时，如何从拦截器返回grpc :: Status :: Unauthenticateded错误？

我尝试使用method.ModifySendMessage和状态，但无法正常工作并崩溃

void AuthInterceptor::Intercept(grpc::experimental::InterceptorBatchMethods *methods) {

    if (methods->QueryInterceptionHookPoint(
            grpc::experimental::InterceptionHookPoints::POST_RECV_INITIAL_METADATA)) {
        auto map = methods->GetRecvInitialMetadata();

        std::multimap<grpc::string_ref, grpc::string_ref>::iterator itr;

        for (itr = map->begin(); itr != map->end(); ++itr) {
            if (itr->first == "authorization") {

                std::string erase = "Bearer ";
                std::size_t pos = itr->second.find(erase);
                std::string value = itr->second.data();
                std::string token = value.erase(pos, erase.length());

                TokenStatus tokenStatus = Security::Token::validateToken(token);

                if (tokenStatus.valid) {
                    std::cout << " token is valid " << token << "\n";
                    //continue 
                    methods->Proceed();
                } else {
                    std::cout << " token is no valid " << token << "\n";
                 // i need to return or throw
              // return Status(grpc::StatusCode::UNAUTHENTICATED, "you are not UNAUTHENTICATED");


                }


            } else {
                 // i need to return or throw
              // return Status(grpc::StatusCode::UNAUTHENTICATED, "you are not UNAUTHENTICATED");
            }

        }

    }


}

我怎么能回来返回Status（grpc :: StatusCode :: UNAUTHENTICATED，e.what（））; 当令牌在拦截器中无效时

C ++ grpc :: experimental：interceptor如何从自定义拦截器返回状态和消息

0 个答案: