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 }