content: package act;
  
  /*-
   * #%L
   * ACT Framework
   * %%
   * Copyright (C) 2014 - 2017 ActFramework
   * %%
   * 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.
   * #L%
   */
  
  import act.app.ActionContext;
  import act.conf.AppConfig;
  import act.handler.RequestHandler;
  import org.osgl.$;
  import org.osgl.http.H;
  import org.osgl.util.E;
  import org.osgl.util.S;
  
  public abstract class RequestImplBase<T extends H.Request> extends H.Request<T> {
      private AppConfig cfg;
      private H.Method method;
      private Boolean secure;
  
      protected RequestImplBase(AppConfig config) {
          E.NPE(config);
          cfg = config;
      }
  
      private H.Method _method() {
          return H.Method.valueOfIgnoreCase(methodName());
      }
  
      protected abstract String methodName();
  
      @Override
      public String fullPath() {
          return path();
      }
  
      @Override
      public String contextPath() {
          return "";
      }
  
      @Override
      public T method(H.Method method) {
          this.method = $.NPE(method);
          return me();
      }
  
      @Override
      public H.Method method() {
          if (null == method) {
              method = _method();
              if (method == H.Method.POST) {
                  // check the method overload
                  String s = header(H.Header.Names.X_HTTP_METHOD_OVERRIDE);
                  if (S.blank(s)) {
                      s = paramVal("_method"); // Spring convention
                  }
                  if (S.notBlank(s)) {
                      method = H.Method.valueOfIgnoreCase(s);
                  }
              }
          }
          return method;
      }
  
      @Override
      public boolean secure() {
          if (null == secure) {
              if ("https".equals(cfg.xForwardedProtocol())) {
                  secure = true;
              } else {
                  secure = parseSecureXHeaders();
              }
          }
          return secure;
      }
  
      public abstract void receiveFullBytesAndProceed(final ActionContext context, final RequestHandler handler);
  
      private boolean parseSecureXHeaders() {
          String s = header(H.Header.Names.X_FORWARDED_PROTO);
          if ("https".equals(s)) {
              return true;
          }
          s = header(H.Header.Names.X_FORWARDED_SSL);
          if ("on".equals(s)) {
              return true;
          }
          s = header(H.Header.Names.FRONT_END_HTTPS);
          if ("on".equals(s)) {
              return true;
          }
          s = header(H.Header.Names.X_URL_SCHEME);
          if ("https".equals(s)) {
              return true;
          }
          return false;
      }
  }
  