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1 /* ====================================================================
2 * The Apache Software License, Version 1.1
3 *
4 * Copyright (c) 2000 The Apache Software Foundation. All rights
5 * reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 *
19 * 3. The end-user documentation included with the redistribution,
20 * if any, must include the following acknowledgment:
21 * "This product includes software developed by the
22 * Apache Software Foundation (http://www.apache.org/)."
23 * Alternately, this acknowledgment may appear in the software itself,
24 * if and wherever such third-party acknowledgments normally appear.
25 *
26 * 4. The names "Apache" and "Apache Software Foundation" must
27 * not be used to endorse or promote products derived from this
28 * software without prior written permission. For written
29 * permission, please contact apache@apache.org.
30 *
31 * 5. Products derived from this software may not be called "Apache",
32 * nor may "Apache" appear in their name, without prior written
33 * permission of the Apache Software Foundation.
34 *
35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46 * SUCH DAMAGE.
47 * ====================================================================
48 *
49 * This software consists of voluntary contributions made by many
50 * individuals on behalf of the Apache Software Foundation. For more
51 * information on the Apache Software Foundation, please see
52 * <http://www.apache.org/>;.
53 *
54 * Portions of this software are based upon public domain software
55 * originally written at the National Center for Supercomputing Applications,
56 * University of Illinois, Urbana-Champaign.
57 */
58
59 package org.troublescope.web;
60
61 import javax.servlet.http.HttpServlet;
62 import javax.servlet.http.HttpServletRequest;
63 import javax.servlet.http.HttpServletResponse;
64
65 /***
66 * Servlet used to serve up the JNLP file to start the TroubleScope client.
67 *
68 * @author Calvin Yu
69 */
70 public class TSClientServlet extends HttpServlet
71 {
72
73 /***
74 * Handle a GET request.
75 */
76 public void doGet(HttpServletRequest req, HttpServletResponse resp)
77 {
78 process(req, resp);
79 }
80
81 /***
82 * Handle a PUT request.
83 */
84 public void doPut(HttpServletRequest req, HttpServletResponse resp)
85 {
86 process(req, resp);
87 }
88
89 /***
90 * Process a request.
91 */
92 protected void process(HttpServletRequest req, HttpServletResponse resp)
93 {
94 StringBuffer buf = new StringBuffer(req.getScheme());
95 buf.append("://").append(req.getServerName());
96 if (!isDefaultPort(req.getScheme(), req.getServerPort())) {
97 buf.append(':').append(req.getServerPort());
98 }
99 req.setAttribute("contextUrl", buf.toString());
100 }
101
102 /***
103 * Returns <code>true</code> if the given port is the default port of the given scheme.
104 */
105 protected boolean isDefaultPort(String scheme, int port)
106 {
107 if ("http".equals(scheme)) {
108 return 80 == port;
109 } else if ("https".equals(scheme)) {
110 return 443 == port;
111 }
112 return false;
113 }
114
115 }
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