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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
4   //  ------------------------------------------------------------------------
5   //  All rights reserved. This program and the accompanying materials
6   //  are made available under the terms of the Eclipse Public License v1.0
7   //  and Apache License v2.0 which accompanies this distribution.
8   //
9   //      The Eclipse Public License is available at
10  //      http://www.eclipse.org/legal/epl-v10.html
11  //
12  //      The Apache License v2.0 is available at
13  //      http://www.opensource.org/licenses/apache2.0.php
14  //
15  //  You may elect to redistribute this code under either of these licenses.
16  //  ========================================================================
17  //
18  
19  
20  package org.eclipse.jetty.server;
21  
22  import javax.servlet.ServletRequestEvent;
23  import javax.servlet.ServletRequestListener;
24  
25  import org.eclipse.jetty.server.handler.ContextHandler;
26  import org.eclipse.jetty.util.MultiException;
27  import org.eclipse.jetty.util.MultiPartInputStreamParser;
28  
29  public class MultiPartCleanerListener implements ServletRequestListener
30  {
31      public final static MultiPartCleanerListener INSTANCE = new MultiPartCleanerListener();
32      
33      protected MultiPartCleanerListener()
34      {
35      }
36      
37      @Override
38      public void requestDestroyed(ServletRequestEvent sre)
39      {
40          //Clean up any tmp files created by MultiPartInputStream
41          MultiPartInputStreamParser mpis = (MultiPartInputStreamParser)sre.getServletRequest().getAttribute(Request.__MULTIPART_INPUT_STREAM);
42          if (mpis != null)
43          {
44              ContextHandler.Context context = (ContextHandler.Context)sre.getServletRequest().getAttribute(Request.__MULTIPART_CONTEXT);
45  
46              //Only do the cleanup if we are exiting from the context in which a servlet parsed the multipart files
47              if (context == sre.getServletContext())
48              {
49                  try
50                  {
51                      mpis.deleteParts();
52                  }
53                  catch (MultiException e)
54                  {
55                      sre.getServletContext().log("Errors deleting multipart tmp files", e);
56                  }
57              }
58          }
59      }
60  
61      @Override
62      public void requestInitialized(ServletRequestEvent sre)
63      {
64          //nothing to do, multipart config set up by ServletHolder.handle()
65      }
66      
67  }