1 /*
2 * $Source$
3 * $Revision$
4 *
5 * Copyright (C) 2000 William Chesters
6 *
7 * Part of Melati (http://melati.org), a framework for the rapid
8 * development of clean, maintainable web applications.
9 *
10 * Melati is free software; Permission is granted to copy, distribute
11 * and/or modify this software under the terms either:
12 *
13 * a) the GNU General Public License as published by the Free Software
14 * Foundation; either version 2 of the License, or (at your option)
15 * any later version,
16 *
17 * or
18 *
19 * b) any version of the Melati Software License, as published
20 * at http://melati.org
21 *
22 * You should have received a copy of the GNU General Public License and
23 * the Melati Software License along with this program;
24 * if not, write to the Free Software Foundation, Inc.,
25 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA to obtain the
26 * GNU General Public License and visit http://melati.org to obtain the
27 * Melati Software License.
28 *
29 * Feel free to contact the Developers of Melati (http://melati.org),
30 * if you would like to work out a different arrangement than the options
31 * outlined here. It is our intention to allow Melati to be used by as
32 * wide an audience as possible.
33 *
34 * This program is distributed in the hope that it will be useful,
35 * but WITHOUT ANY WARRANTY; without even the implied warranty of
36 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
37 * GNU General Public License for more details.
38 *
39 * Contact details for copyright holder:
40 *
41 * William Chesters <williamc At paneris.org>
42 * http://paneris.org/~williamc
43 * Obrechtstraat 114, 2517VX Den Haag, The Netherlands
44 */
45
46 package org.melati.util;
47
48 import java.util.Enumeration;
49 import javax.servlet.http.HttpSession;
50 import javax.servlet.http.HttpServletRequest;
51
52 /**
53 * An <code>HttpServletRequest</code> created from values stored in
54 * the <code>Session</code>.
55 *
56 * Used during login to be able to return to the point where an
57 * <code>AccessPoemException</code> was thrown once the user has
58 * successfully logged in.
59 */
60 public class ReconstructedHttpServletRequest
61 extends DelegatedHttpServletRequest {
62
63 private HttpServletRequestParameters oldParams;
64
65 /**
66 * Constructor.
67 *
68 * @param oldParams parameters from original request
69 * @param newRequest the new request to add parameters to
70 * @throws ReconstructedHttpServletRequestMismatchException
71 */
72 public ReconstructedHttpServletRequest(
73 HttpServletRequestParameters oldParams, HttpServletRequest newRequest)
74 throws ReconstructedHttpServletRequestMismatchException {
75
76 super(newRequest);
77 this.oldParams = oldParams;
78
79 HttpSession session = newRequest.getSession(false);
80 if (!oldParams.requestURL.equals(HttpUtil.getRelativeRequestURL(newRequest))
81 || !(oldParams.queryString == null ?
82 newRequest.getQueryString() == null :
83 oldParams.queryString.equals(newRequest.getQueryString())) ||
84 !(session != null && session.getId() != null &&
85 session.getId().equals(oldParams.sessionID)))
86 throw new ReconstructedHttpServletRequestMismatchException(oldParams,
87 newRequest);
88 }
89
90 /**
91 * Set the peer property.
92 * @param newRequest the request to set as peer
93 */
94 public void setNewRequest(HttpServletRequest newRequest) {
95 peer = newRequest;
96 }
97
98 /**
99 * @return the new request
100 */
101 public HttpServletRequest getNewRequest() {
102 return peer;
103 }
104
105 /**
106 * From the <B>old</B> request.
107 * {@inheritDoc}
108 * @see javax.servlet.ServletRequest#getParameter(java.lang.String)
109 */
110 public String getParameter(String name) {
111 String[] vals = (String[])oldParams.parameters.get(name);
112 return vals == null ? null : vals[0];
113 }
114
115 /**
116 * From the <B>old</B> request.
117 * {@inheritDoc}
118 * @see javax.servlet.ServletRequest#getParameterValues(java.lang.String)
119 */
120 public String[] getParameterValues(String name) {
121 return (String[])oldParams.parameters.get(name);
122 }
123
124 /**
125 * From the <B>old</B> request.
126 * {@inheritDoc}
127 * @see javax.servlet.ServletRequest#getParameterNames()
128 */
129 public Enumeration<String> getParameterNames() {
130 return oldParams.parameters.keys();
131 }
132
133 /**
134 * From the <B>old</B> request.
135 * {@inheritDoc}
136 * @see javax.servlet.http.HttpServletRequest#getMethod()
137 */
138 public String getMethod() {
139 return oldParams.method;
140 }
141 }