content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.ambari.server.security;
  
  import jakarta.servlet.ServletRequest;
  
  import org.apache.ambari.server.configuration.Configuration;
  
  import com.google.inject.Singleton;
  
  /**
   * AmbariServerSecurityHeaderFilter adds security-related headers to HTTP response messages for Ambari Server UI
   */
  @Singleton
  public class AmbariServerSecurityHeaderFilter extends AbstractSecurityHeaderFilter {
  
    @Override
    protected boolean checkPrerequisites(ServletRequest servletRequest) {
      boolean retVal = false;
      if (null == servletRequest.getAttribute(AbstractSecurityHeaderFilter.DENY_HEADER_OVERRIDES_FLAG)) {
        retVal = true;
      } else {
        servletRequest.removeAttribute(AbstractSecurityHeaderFilter.DENY_HEADER_OVERRIDES_FLAG);
      }
      return retVal;
    }
  
    @Override
    protected void processConfig(Configuration configuration) {
      setSslEnabled(configuration.getApiSSLAuthentication());
      setStrictTransportSecurity(configuration.getStrictTransportSecurityHTTPResponseHeader());
      setxFrameOptionsHeader(configuration.getXFrameOptionsHTTPResponseHeader());
      setxXSSProtectionHeader(configuration.getXXSSProtectionHTTPResponseHeader());
      setContentSecurityPolicyHeader(configuration.getContentSecurityPolicyHTTPResponseHeader());
      setXContentTypeHeader(configuration.getXContentTypeHTTPResponseHeader());
      setCacheControlHeader(configuration.getCacheControlHTTPResponseHeader());
      setPragmaHeader(configuration.getPragmaHTTPResponseHeader());
      setCharset(configuration.getCharsetHTTPResponseHeader());
    }
  
  }
  