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1   /* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
2    *
3    * Licensed under the Apache License, Version 2.0 (the "License");
4    * you may not use this file except in compliance with the License.
5    * You may obtain a copy of the License at
6    *
7    *     http://www.apache.org/licenses/LICENSE-2.0
8    *
9    * Unless required by applicable law or agreed to in writing, software
10   * distributed under the License is distributed on an "AS IS" BASIS,
11   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12   * See the License for the specific language governing permissions and
13   * limitations under the License.
14   */
15  
16  package org.acegisecurity.providers.cas.proxy;
17  
18  import org.acegisecurity.AcegiMessageSource;
19  
20  import org.acegisecurity.providers.cas.CasProxyDecider;
21  import org.acegisecurity.providers.cas.ProxyUntrustedException;
22  
23  import org.apache.commons.logging.Log;
24  import org.apache.commons.logging.LogFactory;
25  
26  import org.springframework.beans.factory.InitializingBean;
27  
28  import org.springframework.context.MessageSource;
29  import org.springframework.context.MessageSourceAware;
30  import org.springframework.context.support.MessageSourceAccessor;
31  
32  import org.springframework.util.Assert;
33  
34  import java.util.List;
35  
36  
37  /**
38   * Accepts no proxied requests.<P>This class should be used if only service tickets wish to be accepted (ie no
39   * proxy tickets at all).</p>
40   */
41  public class RejectProxyTickets implements CasProxyDecider, MessageSourceAware, InitializingBean {
42      //~ Static fields/initializers =====================================================================================
43  
44      private static final Log logger = LogFactory.getLog(RejectProxyTickets.class);
45  
46      //~ Instance fields ================================================================================================
47  
48      protected MessageSourceAccessor messages = AcegiMessageSource.getAccessor();
49  
50      //~ Methods ========================================================================================================
51  
52      public void afterPropertiesSet() throws Exception {
53          Assert.notNull(this.messages, "A message source must be set");
54      }
55  
56      public void confirmProxyListTrusted(List proxyList)
57          throws ProxyUntrustedException {
58          Assert.notNull(proxyList, "proxyList cannot be null");
59  
60          if (proxyList.size() == 0) {
61              // A Service Ticket (not a Proxy Ticket)
62              return;
63          }
64  
65          if (logger.isDebugEnabled()) {
66              logger.debug("Proxies are unacceptable; proxy list provided: " + proxyList.toString());
67          }
68  
69          throw new ProxyUntrustedException(
70                  messages.getMessage("RejectProxyTickets.reject", "Proxy tickets are rejected"));
71      }
72  
73      public void setMessageSource(MessageSource messageSource) {
74          this.messages = new MessageSourceAccessor(messageSource);
75      }
76  }