| EncryptedServletRequest.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 package com.liferay.util.servlet;
24
25 import com.liferay.portal.kernel.util.StringPool;
26 import com.liferay.portal.kernel.util.Validator;
27 import com.liferay.util.Encryptor;
28 import com.liferay.util.EncryptorException;
29
30 import java.security.Key;
31
32 import java.util.Collections;
33 import java.util.Enumeration;
34 import java.util.HashMap;
35 import java.util.Map;
36
37 import javax.servlet.http.HttpServletRequest;
38 import javax.servlet.http.HttpServletRequestWrapper;
39
40 /**
41 * <a href="EncryptedServletRequest.java.html"><b><i>View Source</i></b></a>
42 *
43 * @author Brian Wing Shun Chan
44 *
45 */
46 public class EncryptedServletRequest extends HttpServletRequestWrapper {
47
48 public EncryptedServletRequest(HttpServletRequest request, Key key) {
49 super(request);
50
51 _params = new HashMap<String, String[]>();
52 _key = key;
53
54 Enumeration<String> enu = getParameterNames();
55
56 while (enu.hasMoreElements()) {
57 String name = enu.nextElement();
58 String[] values = super.getParameterValues(name);
59
60 for (int i = 0; i < values.length; i++) {
61 if (Validator.isNotNull(values[i])) {
62 try {
63 values[i] = Encryptor.decrypt(_key, values[i]);
64 }
65 catch (EncryptorException ee) {
66 values[i] = StringPool.BLANK;
67 }
68 }
69 }
70
71 _params.put(name, values);
72 }
73 }
74
75 public String getParameter(String name) {
76 String[] values = _params.get(name);
77
78 if ((values != null) && (values.length > 0)) {
79 return values[0];
80 }
81 else {
82 return null;
83 }
84 }
85
86 public Map<String, String[]> getParameterMap() {
87 return Collections.unmodifiableMap(_params);
88 }
89
90 public String[] getParameterValues(String name) {
91 return _params.get(name);
92 }
93
94 private Map<String, String[]> _params;
95 private Key _key;
96
97 }