/*
    * Copyright (c) 2002-2014, Mairie de Paris
    * All rights reserved.
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    *
    *  1. Redistributions of source code must retain the above copyright notice
   *     and the following disclaimer.
   *
   *  2. Redistributions in binary form must reproduce the above copyright notice
   *     and the following disclaimer in the documentation and/or other materials
   *     provided with the distribution.
   *
   *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
   *     contributors may be used to endorse or promote products derived from
   *     this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   *
   * License 1.0
   */
  package fr.paris.lutece.plugins.mylutece.modules.saml.authentication.metadata;
  
  import fr.paris.lutece.plugins.mylutece.modules.saml.authentication.config.ConfigProperties;
  import fr.paris.lutece.plugins.mylutece.modules.saml.authentication.config.Constants;
  import fr.paris.lutece.plugins.mylutece.modules.saml.authentication.exceptions.SAMLParsingException;
  
  import org.apache.log4j.Logger;
  
  import org.opensaml.common.xml.SAMLConstants;
  
  import org.opensaml.saml2.metadata.AssertionConsumerService;
  import org.opensaml.saml2.metadata.AttributeConsumingService;
  import org.opensaml.saml2.metadata.RequestedAttribute;
  import org.opensaml.saml2.metadata.SPSSODescriptor;
  
  import java.io.InputStream;
  
  import java.util.List;
  
  
  public class SPMetadataManager extends MetadataManager
  {
      private static Logger _logger = Logger.getLogger( IDPMetadataManager.class );
  
      @Override
      public void loadMetadata( String inFilePath )
      {
          // IDP Metadata file path
          if ( inFilePath == null )
          {
              inFilePath = ConfigProperties.getInstance(  ).getProperty( Constants.SP_METADATA_FILE_PROP );
          }
  
          InputStream stream = this.getClass(  ).getResourceAsStream( inFilePath );
          loadMetadata( stream );
      }
  
      /**
       *
       * @throws SAMLParsingException
       */
      protected void validateContent(  ) throws SAMLParsingException
      {
          // metadonn�es devraient contenir un SPSSODescriptor
          SPSSODescriptor spSSODescriptor = metaData.getSPSSODescriptor( SAMLConstants.SAML20P_NS );
  
          if ( spSSODescriptor == null )
          {
              String message = "Les metadonn�es devraient contenir un SPSSODescriptor";
              _logger.warn( message );
              throw new SAMLParsingException( message );
          }
  
          // SPSSODescriptor devraient contenir un et un seul AttributeConsumingService
          List<AttributeConsumingService> attributeConsumingService = spSSODescriptor.getAttributeConsumingServices(  );
  
          if ( attributeConsumingService.size(  ) != 1 )
          {
              String message = "SPSSODescriptor devraient contenir un et un seul AttributeConsumingService";
              _logger.warn( message );
              throw new SAMLParsingException( message );
          }
  
          // SPSSODescriptor devraient contenir un et un seul AssertionConsumerServices
          List<AssertionConsumerService> assertionConsumerService = spSSODescriptor.getAssertionConsumerServices(  );
  
         if ( assertionConsumerService.size(  ) != 1 )
         {
             String message = "SPSSODescriptor devraient contenir un et un seul AssertionConsumerServices";
             _logger.warn( message );
             throw new SAMLParsingException( message );
         }
     }
 
     /**
      * Retourne la liste des attributs de la Metadonn�es
      * @return
      * @throws SAMLParsingException
      */
     public List<RequestedAttribute> getRequestedAttributes(  )
         throws SAMLParsingException
     {
         return getAttributeConsumingService(  ).getRequestAttributes(  );
     }
 
     private SPSSODescriptor getSPSSODescriptor(  )
     {
         return metaData.getSPSSODescriptor( SAMLConstants.SAML20P_NS );
     }
 
     private AttributeConsumingService getAttributeConsumingService(  )
     {
         return getSPSSODescriptor(  ).getAttributeConsumingServices(  ).get( 0 );
     }
 
     public AssertionConsumerService getAssertionConsumerService(  )
     {
         return getSPSSODescriptor(  ).getAssertionConsumerServices(  ).get( 0 );
     }
 }