/*
    * 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.checkers;
  
  import fr.paris.lutece.plugins.mylutece.modules.saml.authentication.engine.BootStrap;
  import fr.paris.lutece.plugins.mylutece.modules.saml.authentication.engine.SAMLResponseManager;
  import fr.paris.lutece.plugins.mylutece.modules.saml.authentication.exceptions.CertificateValidationException;
  import fr.paris.lutece.plugins.mylutece.modules.saml.authentication.exceptions.SAMLParsingException;
  import fr.paris.lutece.portal.service.util.AppLogService;
  
  import java.security.cert.CertificateExpiredException;
  import java.security.cert.CertificateNotYetValidException;
  import java.security.cert.X509Certificate;
  
  import java.util.List;
  
  
  public class CertificateChecker implements SAMLChecker
  {
      public void check( SAMLResponseManager responseManager )
          throws CertificateValidationException, SAMLParsingException
      {
          List<X509Certificate> certWhiteList = BootStrap.getInstance(  ).getIdpMetaDataManager(  )
                                                         .getCertificateWhiteList(  );
          X509Certificate responseCert;
          responseCert = responseManager.getSignatureCertificate(  );
  
          // V�rification du certificat (liste blanche)
          if ( !certWhiteList.contains( responseCert ) )
          {
              String message = "Le certificat de signature n'est pas reconnu. DN Certificat=[" +
                  responseCert.getSubjectX500Principal(  ).getName(  ) + "]";
              AppLogService.info( message );
              throw new CertificateValidationException( message );
          }
  
          // Validite certificat
          try
          {
              responseCert.checkValidity(  );
          }
          catch ( CertificateExpiredException e )
          {
              String message = "Le certificat de signature est expir�. DN Certificat=[" +
                  responseCert.getSubjectX500Principal(  ).getName(  ) + "]";
              AppLogService.info( message );
              throw new CertificateValidationException( message );
          }
          catch ( CertificateNotYetValidException e )
          {
              String message = "Le certificat de signature n'est pas encore valide. DN Certificat=[" +
                  responseCert.getSubjectX500Principal(  ).getName(  ) + "]";
              AppLogService.info( message );
              throw new CertificateValidationException( message );
          }
      }
  }