1 /*
2 * Copyright (C) 2009-2010, Google Inc.
3 * and other copyright owners as documented in the project's IP log.
4 *
5 * This program and the accompanying materials are made available
6 * under the terms of the Eclipse Distribution License v1.0 which
7 * accompanies this distribution, is reproduced below, and is
8 * available at http://www.eclipse.org/org/documents/edl-v10.php
9 *
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials provided
22 * with the distribution.
23 *
24 * - Neither the name of the Eclipse Foundation, Inc. nor the
25 * names of its contributors may be used to endorse or promote
26 * products derived from this software without specific prior
27 * written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
30 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
31 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
34 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
36 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
38 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
40 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 */
43
44 package org.eclipse.jgit.http.server.glue;
45
46 import java.io.IOException;
47
48 import javax.servlet.Filter;
49 import javax.servlet.ServletException;
50 import javax.servlet.http.HttpServlet;
51 import javax.servlet.http.HttpServletRequest;
52 import javax.servlet.http.HttpServletResponse;
53
54 /**
55 * Selects requests by matching the suffix of the URI.
56 * <p>
57 * The suffix string is literally matched against the path info of the servlet
58 * request, as this class assumes it is invoked by {@link MetaServlet}. Suffix
59 * strings may include path components. Examples include {@code /info/refs}, or
60 * just simple extension matches like {@code .txt}.
61 * <p>
62 * When dispatching to the rest of the pipeline the HttpServletRequest is
63 * modified so that {@code getPathInfo()} does not contain the suffix that
64 * caused this pipeline to be selected.
65 */
66 class SuffixPipeline extends UrlPipeline {
67 static class Binder extends ServletBinderImpl {
68 private final String suffix;
69
70 Binder(final String suffix) {
71 this.suffix = suffix;
72 }
73
74 UrlPipeline create() {
75 return new SuffixPipeline(suffix, getFilters(), getServlet());
76 }
77 }
78
79 private final String suffix;
80
81 private final int suffixLen;
82
83 SuffixPipeline(final String suffix, final Filter[] filters,
84 final HttpServlet servlet) {
85 super(filters, servlet);
86 this.suffix = suffix;
87 this.suffixLen = suffix.length();
88 }
89
90 boolean match(final HttpServletRequest req) {
91 final String pathInfo = req.getPathInfo();
92 return pathInfo != null && pathInfo.endsWith(suffix);
93 }
94
95 @Override
96 void service(HttpServletRequest req, HttpServletResponse rsp)
97 throws ServletException, IOException {
98 String curInfo = req.getPathInfo();
99 String newPath = req.getServletPath() + curInfo;
100 String newInfo = curInfo.substring(0, curInfo.length() - suffixLen);
101 super.service(new WrappedRequest(req, newPath, newInfo), rsp);
102 }
103
104 @Override
105 public String toString() {
106 return "Pipeline[ *" + suffix + " ]";
107 }
108 }