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.portal.util;
22:
23: import com.liferay.portal.kernel.util.Base64;
24: import com.liferay.portal.kernel.util.Digester;
25:
26: import java.io.UnsupportedEncodingException;
27:
28: import java.security.MessageDigest;
29: import java.security.NoSuchAlgorithmException;
30:
31: import org.apache.commons.codec.binary.Hex;
32: import org.apache.commons.logging.Log;
33: import org.apache.commons.logging.LogFactory;
34:
35: /**
36: * <a href="DigesterImpl.java.html"><b><i>View Source</i></b></a>
37: *
38: * @author Brian Wing Shun Chan
39: *
40: */
41: public class DigesterImpl implements Digester {
42:
43: public String digest(String text) {
44: return digest(Digester.DIGEST_ALGORITHM, text);
45: }
46:
47: public String digest(String algorithm, String text) {
48: MessageDigest digester = null;
49:
50: try {
51: digester = MessageDigest.getInstance(algorithm);
52:
53: digester.update(text.getBytes(Digester.ENCODING));
54: } catch (NoSuchAlgorithmException nsae) {
55: _log.error(nsae, nsae);
56: } catch (UnsupportedEncodingException uee) {
57: _log.error(uee, uee);
58: }
59:
60: byte[] byteArray = digester.digest();
61:
62: if (_BASE_64) {
63: return Base64.encode(byteArray);
64: } else {
65: return new String(Hex.encodeHex(byteArray));
66: }
67: }
68:
69: private static final boolean _BASE_64 = PropsValues.PASSWORDS_DIGEST_ENCODING
70: .equals("base64");
71:
72: private static Log _log = LogFactory.getLog(Digester.class);
73:
74: }
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