InternalEndpointHandler.java

/*
 * Copyright 2020 Confluent Inc.
 *
 * Licensed under the Confluent Community License (the "License"); you may not use
 * this file except in compliance with the License.  You may obtain a copy of the
 * License at
 *
 * http://www.confluent.io/confluent-community-license
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OF ANY KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations under the License.
 */

package io.confluent.ksql.api.server;

import io.vertx.core.Handler;
import io.vertx.core.net.SocketAddress;
import io.vertx.ext.web.RoutingContext;

public class InternalEndpointHandler implements Handler<RoutingContext> {

  @Override
  public void handle(final RoutingContext routingContext) {

    final SocketAddress localAddress = routingContext.request().connection().localAddress();

    if (!isFromInternalListener(localAddress)) {
      routingContext.fail(400,
          new KsqlApiException("Can't call internal endpoint on public listener",
              ErrorCodes.ERROR_CODE_INTERNAL_ONLY));
    } else {
      routingContext.next();
    }
  }

  private boolean isFromInternalListener(final SocketAddress socketAddress) {

    // TODO check address against set of internal listeners

    return false;
  }
}