/*
    *   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.directory.server.config.beans;
  
  
  import java.util.Arrays;
  import java.util.HashSet;
  import java.util.Set;
  
  
  import org.apache.directory.server.config.ConfigurationElement;
  
  
  /**
   * A bean used to store the hash interceptor configuration
   *
   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
   */
  public class HashInterceptorBean extends InterceptorBean
  {
      /** The hash algorithm */
      @ConfigurationElement(attributeType = "ads-hashAlgorithm", isOptional = true, defaultValue = "SSHA-256" )
      private String hashAlgorithm;
  
      /** The reference to the Password Policy component */
      @ConfigurationElement(attributeType = "ads-hashAttribute", isOptional = true, defaultValues = {"2.5.4.35"} )
      private Set<String> hashAttributes = new HashSet<>();
  
  
      /**
       * Creates a new AuthenticationInterceptorBean instance
       */
      public HashInterceptorBean()
      {
          super();
      }
  
  
      /**
       * @param hashAttributes The attributes that need to be hashed
       */
      public void addHashAttributes( String[] hashAttributes )
      {
          if ( hashAttributes != null && hashAttributes.length > 0 ) 
          {
              if ( this.hashAttributes == null ) 
              {
                  this.hashAttributes = new HashSet<>();
              }
              this.hashAttributes.addAll( Arrays.asList( hashAttributes ) );
          }
      }
  
  
      /**
       * @return the hash algorithm
       */
      public String getHashAlgorithm()
      {
          return hashAlgorithm;
      }
  
  
      /**
       * @return the attributes to hash
       */
      public Set<String> getHashAttributes()
      {
          return hashAttributes;
      }
  
  
      /**
       * @param hashAlgorithm The hash algorithm to use
       */
      public void setHashAlgorithm( String hashAlgorithm )
      {
          this.hashAlgorithm = hashAlgorithm;
      }
  
  
      /**
      * {@inheritDoc}
      */
     @Override
     public String toString( String tabs )
     {
         StringBuilder sb = new StringBuilder();
 
         sb.append( tabs ).append( "HashInterceptor :\n" );
         sb.append( super.toString( tabs + "  " ) );
 
         if ( hashAlgorithm != null )
         {
             sb.append( tabs ).append( "  hashAlgorithm : " )
                     .append( hashAlgorithm ).append( "\n" );
         }
         if ( ( hashAttributes != null ) && !hashAttributes.isEmpty() )
         {
             sb.append( tabs ).append( "  hashAttributes :\n" );
 
             for ( String hashAttribute : hashAttributes )
             {
                 sb.append( tabs ).append( "    " ).append( hashAttribute );
             }
         }
 
         return sb.toString();
     }
 }