| DigesterImpl.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 * The contents of this file are subject to the terms of the Liferay Enterprise
5 * Subscription License ("License"). You may not use this file except in
6 * compliance with the License. You can obtain a copy of the License by
7 * contacting Liferay, Inc. See the License for the specific language governing
8 * permissions and limitations under the License, including but not limited to
9 * distribution rights of the Software.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17 * SOFTWARE.
18 */
19
20 package com.liferay.portal.util;
21
22 import com.liferay.portal.kernel.log.Log;
23 import com.liferay.portal.kernel.log.LogFactoryUtil;
24 import com.liferay.portal.kernel.util.Base64;
25 import com.liferay.portal.kernel.util.Digester;
26
27 import java.io.UnsupportedEncodingException;
28
29 import java.security.MessageDigest;
30 import java.security.NoSuchAlgorithmException;
31
32 import org.apache.commons.codec.binary.Hex;
33
34 /**
35 * <a href="DigesterImpl.java.html"><b><i>View Source</i></b></a>
36 *
37 * @author Brian Wing Shun Chan
38 *
39 */
40 public class DigesterImpl implements Digester {
41
42 public String digest(String text) {
43 return digest(Digester.DIGEST_ALGORITHM, text);
44 }
45
46 public String digest(String algorithm, String text) {
47 MessageDigest digester = null;
48
49 try{
50 digester = MessageDigest.getInstance(algorithm);
51
52 digester.update(text.getBytes(Digester.ENCODING));
53 }
54 catch (NoSuchAlgorithmException nsae) {
55 _log.error(nsae, nsae);
56 }
57 catch (UnsupportedEncodingException uee) {
58 _log.error(uee, uee);
59 }
60
61 byte[] bytes = digester.digest();
62
63 if (_BASE_64) {
64 return Base64.encode(bytes);
65 }
66 else {
67 return new String(Hex.encodeHex(bytes));
68 }
69 }
70
71 private static final boolean _BASE_64 =
72 PropsValues.PASSWORDS_DIGEST_ENCODING.equals("base64");
73
74 private static Log _log = LogFactoryUtil.getLog(Digester.class);
75
76 }