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1   /****************************************************************
2    * Licensed to the Apache Software Foundation (ASF) under one   *
3    * or more contributor license agreements.  See the NOTICE file *
4    * distributed with this work for additional information        *
5    * regarding copyright ownership.  The ASF licenses this file   *
6    * to you under the Apache License, Version 2.0 (the            *
7    * "License"); you may not use this file except in compliance   *
8    * with the License.  You may obtain a copy of the License at   *
9    *                                                              *
10   *   http://www.apache.org/licenses/LICENSE-2.0                 *
11   *                                                              *
12   * Unless required by applicable law or agreed to in writing,   *
13   * software distributed under the License is distributed on an  *
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
15   * KIND, either express or implied.  See the License for the    *
16   * specific language governing permissions and limitations      *
17   * under the License.                                           *
18   ****************************************************************/
19  
20  
21  
22  package org.apache.james.pop3server;
23  
24  import org.apache.avalon.framework.logger.AbstractLogEnabled;
25  import org.apache.commons.collections.ListUtils;
26  
27  import java.util.List;
28  
29  /**
30    * Handles QUIT command
31    */
32  public class QuitCmdHandler extends AbstractLogEnabled implements CommandHandler {
33  
34      /**
35       * @see org.apache.james.pop3server.CommandHandler#onCommand(POP3Session)
36       */
37      public void onCommand(POP3Session session) {
38          doQUIT(session,session.getCommandArgument());
39      }
40  
41      /**
42       * Handler method called upon receipt of a QUIT command.
43       * This method handles cleanup of the POP3Handler state.
44       *
45       * @param argument the first argument parsed by the parseCommand method
46       */
47      private void doQUIT(POP3Session session,String argument) {
48          String responseString = null;
49          if (session.getHandlerState() == POP3Handler.AUTHENTICATION_READY ||  session.getHandlerState() == POP3Handler.AUTHENTICATION_USERSET) {
50              responseString = POP3Handler.OK_RESPONSE + " Apache James POP3 Server signing off.";
51              session.writeResponse(responseString);
52              session.endSession();
53              return;
54          }
55          List toBeRemoved =  ListUtils.subtract(session.getBackupUserMailbox(), session.getUserMailbox());
56          try {
57              session.getUserInbox().remove(toBeRemoved);
58              // for (Iterator it = toBeRemoved.iterator(); it.hasNext(); ) {
59              //    Mail mc = (Mail) it.next();
60              //    userInbox.remove(mc.getName());
61              //}
62              responseString = POP3Handler.OK_RESPONSE + " Apache James POP3 Server signing off.";
63              session.writeResponse(responseString);
64          } catch (Exception ex) {
65              responseString = POP3Handler.ERR_RESPONSE + " Some deleted messages were not removed";
66              session.writeResponse(responseString);
67              getLogger().error("Some deleted messages were not removed: " + ex.getMessage());
68          }
69          session.endSession();
70      }
71  
72  
73  }