01: /**
02: * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
03: *
04: * Permission is hereby granted, free of charge, to any person obtaining a copy
05: * of this software and associated documentation files (the "Software"), to deal
06: * in the Software without restriction, including without limitation the rights
07: * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
08: * copies of the Software, and to permit persons to whom the Software is
09: * 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: */package com.liferay.util.servlet;
22:
23: import com.liferay.portal.kernel.util.StringPool;
24: import com.liferay.portal.kernel.util.Validator;
25: import com.liferay.util.Encryptor;
26: import com.liferay.util.EncryptorException;
27:
28: import java.security.Key;
29:
30: import java.util.Collections;
31: import java.util.Enumeration;
32: import java.util.HashMap;
33: import java.util.Map;
34:
35: import javax.servlet.http.HttpServletRequest;
36: import javax.servlet.http.HttpServletRequestWrapper;
37:
38: /**
39: * <a href="EncryptedServletRequest.java.html"><b><i>View Source</i></b></a>
40: *
41: * @author Brian Wing Shun Chan
42: *
43: */
44: public class EncryptedServletRequest extends HttpServletRequestWrapper {
45:
46: public EncryptedServletRequest(HttpServletRequest req, Key key) {
47: super (req);
48:
49: _params = new HashMap();
50: _key = key;
51:
52: Enumeration enu = getParameterNames();
53:
54: while (enu.hasMoreElements()) {
55: String name = (String) enu.nextElement();
56: String[] values = super .getParameterValues(name);
57:
58: for (int i = 0; i < values.length; i++) {
59: if (Validator.isNotNull(values[i])) {
60: try {
61: values[i] = Encryptor.decrypt(_key, values[i]);
62: } catch (EncryptorException ee) {
63: values[i] = StringPool.BLANK;
64: }
65: }
66: }
67:
68: _params.put(name, values);
69: }
70: }
71:
72: public String getParameter(String name) {
73: String[] values = (String[]) _params.get(name);
74:
75: if ((values != null) && (values.length > 0)) {
76: return values[0];
77: } else {
78: return null;
79: }
80: }
81:
82: public Map getParameterMap() {
83: return Collections.unmodifiableMap(_params);
84: }
85:
86: public String[] getParameterValues(String name) {
87: return (String[]) _params.get(name);
88: }
89:
90: private Map _params;
91: private Key _key;
92:
93: }
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