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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  package org.eclipse.jetty.jsp;
20  
21  import java.io.IOException;
22  
23  import javax.servlet.ServletException;
24  import javax.servlet.http.HttpServletRequest;
25  import javax.servlet.http.HttpServletResponse;
26  
27  import org.apache.jasper.servlet.JspServlet;
28  import org.eclipse.jetty.server.handler.ContextHandler;
29  import org.eclipse.jetty.util.URIUtil;
30  import org.eclipse.jetty.util.resource.Resource;
31  
32  /**
33   * JettyJspServlet
34   *
35   * Wrapper for the jsp servlet that handles receiving requests mapped from 
36   * jsp-property-groups. Mappings could be wildcard urls like "/*", which would
37   * include welcome files, but we need those to be handled by the DefaultServlet.
38   */
39  public class JettyJspServlet extends JspServlet
40  {
41  
42      /**
43       * 
44       */
45      private static final long serialVersionUID = -5387857473125086791L;
46  
47      
48      
49      
50      
51      @Override
52      public void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
53      {
54          HttpServletRequest request = null;
55          if (req instanceof HttpServletRequest)
56              request = (HttpServletRequest)req;
57          else
58              throw new ServletException("Request not HttpServletRequest");
59  
60          String servletPath=null;
61          String pathInfo=null;
62          if (request.getAttribute("javax.servlet.include.request_uri")!=null)
63          {
64              servletPath=(String)request.getAttribute("javax.servlet.include.servlet_path");
65              pathInfo=(String)request.getAttribute("javax.servlet.include.path_info");
66              if (servletPath==null)
67              {
68                  servletPath=request.getServletPath();
69                  pathInfo=request.getPathInfo();
70              }
71          }
72          else
73          {
74              servletPath = request.getServletPath();
75              pathInfo = request.getPathInfo();
76          }
77          
78          String pathInContext = URIUtil.addPaths(servletPath,pathInfo);
79      
80          String jspFile = getInitParameter("jspFile");
81  
82          //if this is a forced-path from a jsp-file, we want the jsp servlet to handle it,
83          //otherwise the default servlet might handle it
84          if (jspFile == null)
85          {
86              if (pathInContext.endsWith("/"))
87              {
88                  //dispatch via forward to the default servlet
89                  getServletContext().getNamedDispatcher("default").forward(req, resp);
90                  return;
91              }
92              else
93              {      
94                  //check if it resolves to a directory
95                  Resource resource = ((ContextHandler.Context)getServletContext()).getContextHandler().getResource(pathInContext);    
96  
97                  if (resource!=null && resource.isDirectory())
98                  {
99                      //dispatch via forward to the default servlet
100                     getServletContext().getNamedDispatcher("default").forward(req, resp);
101                     return;
102                 }
103             }
104         }
105         
106         //fall through to the normal jsp servlet handling
107         super.service(req, resp);
108     }
109 
110     
111 }