/* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited

  *

  * 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.

  */

 package org.acegisecurity.providers.cas.proxy;

 import org.acegisecurity.AcegiMessageSource;

 import org.acegisecurity.providers.cas.CasProxyDecider;

 import org.acegisecurity.providers.cas.ProxyUntrustedException;

 import org.apache.commons.logging.Log;

 import org.apache.commons.logging.LogFactory;

 import org.springframework.beans.factory.InitializingBean;

 import org.springframework.context.MessageSource;

 import org.springframework.context.MessageSourceAware;

 import org.springframework.context.support.MessageSourceAccessor;

 import org.springframework.util.Assert;

 import java.util.List;

 /**

  * Accepts no proxied requests.<P>This class should be used if only service tickets wish to be accepted (ie no

  * proxy tickets at all).</p>

  */

 public class RejectProxyTickets implements CasProxyDecider, MessageSourceAware, InitializingBean {

     //~ Static fields/initializers =====================================================================================

     private static final Log logger = LogFactory.getLog(RejectProxyTickets.class);

     //~ Instance fields ================================================================================================

     protected MessageSourceAccessor messages = AcegiMessageSource.getAccessor();

     //~ Methods ========================================================================================================

     public void afterPropertiesSet() throws Exception {

         Assert.notNull(this.messages, "A message source must be set");

     }

     public void confirmProxyListTrusted(List proxyList)

         throws ProxyUntrustedException {

         Assert.notNull(proxyList, "proxyList cannot be null");

         if (proxyList.size() == 0) {

             // A Service Ticket (not a Proxy Ticket)

             return;

         }

         if (logger.isDebugEnabled()) {

             logger.debug("Proxies are unacceptable; proxy list provided: " + proxyList.toString());

         }

         throw new ProxyUntrustedException(

                 messages.getMessage("RejectProxyTickets.reject", "Proxy tickets are rejected"));

     }

     public void setMessageSource(MessageSource messageSource) {

         this.messages = new MessageSourceAccessor(messageSource);

     }

 }