content: /*
   * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package io.airlift.http.server;
  
  import jakarta.servlet.http.HttpServlet;
  import jakarta.servlet.http.HttpServletRequest;
  import jakarta.servlet.http.HttpServletResponse;
  
  import static jakarta.servlet.http.HttpServletResponse.SC_OK;
  
  class ForwardedServlet
          extends HttpServlet
  {
      private volatile String scheme;
      private volatile Boolean isSecure;
      private volatile String requestUrl;
      private volatile String remoteAddress;
  
      public void reset()
      {
          scheme = null;
          isSecure = null;
          requestUrl = null;
          remoteAddress = null;
      }
  
      public String getScheme()
      {
          return scheme;
      }
  
      public Boolean getIsSecure()
      {
          return isSecure;
      }
  
      public String getRequestUrl()
      {
          return requestUrl;
      }
  
      public String getRemoteAddress()
      {
          return remoteAddress;
      }
  
      @Override
      protected void doGet(HttpServletRequest request, HttpServletResponse response)
      {
          scheme = request.getScheme();
          isSecure = request.isSecure();
          requestUrl = request.getRequestURL().toString();
          remoteAddress = request.getRemoteAddr();
          response.setStatus(SC_OK);
      }
  }
  