| DigesterImpl.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 *
5 *
6 *
7 * The contents of this file are subject to the terms of the Liferay Enterprise
8 * Subscription License ("License"). You may not use this file except in
9 * compliance with the License. You can obtain a copy of the License by
10 * contacting Liferay, Inc. See the License for the specific language governing
11 * permissions and limitations under the License, including but not limited to
12 * distribution rights 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 public class DigesterImpl implements Digester {
43
44 public String digest(String text) {
45 return digest(Digester.DIGEST_ALGORITHM, text);
46 }
47
48 public String digest(String algorithm, String text) {
49 MessageDigest digester = null;
50
51 try{
52 digester = MessageDigest.getInstance(algorithm);
53
54 digester.update(text.getBytes(Digester.ENCODING));
55 }
56 catch (NoSuchAlgorithmException nsae) {
57 _log.error(nsae, nsae);
58 }
59 catch (UnsupportedEncodingException uee) {
60 _log.error(uee, uee);
61 }
62
63 byte[] bytes = digester.digest();
64
65 if (_BASE_64) {
66 return Base64.encode(bytes);
67 }
68 else {
69 return new String(Hex.encodeHex(bytes));
70 }
71 }
72
73 private static final boolean _BASE_64 =
74 PropsValues.PASSWORDS_DIGEST_ENCODING.equals("base64");
75
76 private static Log _log = LogFactoryUtil.getLog(Digester.class);
77
78 }