| DigesterImpl.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.portal.util;
24
25 import com.liferay.portal.kernel.log.Log;
26 import com.liferay.portal.kernel.log.LogFactoryUtil;
27 import com.liferay.portal.kernel.util.Base64;
28 import com.liferay.portal.kernel.util.Digester;
29
30 import java.io.UnsupportedEncodingException;
31
32 import java.security.MessageDigest;
33 import java.security.NoSuchAlgorithmException;
34
35 import org.apache.commons.codec.binary.Hex;
36
37 /**
38 * <a href="DigesterImpl.java.html"><b><i>View Source</i></b></a>
39 *
40 * @author Brian Wing Shun Chan
41 *
42 */
43 public class DigesterImpl implements Digester {
44
45 public String digest(String text) {
46 return digest(Digester.DIGEST_ALGORITHM, text);
47 }
48
49 public String digest(String algorithm, String text) {
50 MessageDigest digester = null;
51
52 try{
53 digester = MessageDigest.getInstance(algorithm);
54
55 digester.update(text.getBytes(Digester.ENCODING));
56 }
57 catch (NoSuchAlgorithmException nsae) {
58 _log.error(nsae, nsae);
59 }
60 catch (UnsupportedEncodingException uee) {
61 _log.error(uee, uee);
62 }
63
64 byte[] bytes = digester.digest();
65
66 if (_BASE_64) {
67 return Base64.encode(bytes);
68 }
69 else {
70 return new String(Hex.encodeHex(bytes));
71 }
72 }
73
74 private static final boolean _BASE_64 =
75 PropsValues.PASSWORDS_DIGEST_ENCODING.equals("base64");
76
77 private static Log _log = LogFactoryUtil.getLog(Digester.class);
78
79 }