001
014
015 package com.liferay.portal.util;
016
017 import com.liferay.portal.kernel.log.Log;
018 import com.liferay.portal.kernel.log.LogFactoryUtil;
019 import com.liferay.portal.kernel.util.Base64;
020 import com.liferay.portal.kernel.util.Digester;
021 import com.liferay.portal.kernel.util.StringBundler;
022 import com.liferay.portal.kernel.util.StringPool;
023
024 import java.io.UnsupportedEncodingException;
025
026 import java.nio.ByteBuffer;
027
028 import java.security.MessageDigest;
029 import java.security.NoSuchAlgorithmException;
030
031 import org.apache.commons.codec.binary.Hex;
032
033
038 public class DigesterImpl implements Digester {
039
040 public String digest(ByteBuffer byteBuffer) {
041 return digest(Digester.DEFAULT_ALGORITHM, byteBuffer);
042 }
043
044 public String digest(String text) {
045 return digest(Digester.DEFAULT_ALGORITHM, text);
046 }
047
048 public String digest(String algorithm, ByteBuffer byteBuffer) {
049 if (_BASE_64) {
050 return digestBase64(algorithm, byteBuffer);
051 }
052 else {
053 return digestHex(algorithm, byteBuffer);
054 }
055 }
056
057 public String digest(String algorithm, String... text) {
058 if (_BASE_64) {
059 return digestBase64(algorithm, text);
060 }
061 else {
062 return digestHex(algorithm, text);
063 }
064 }
065
066 public String digestBase64(ByteBuffer byteBuffer) {
067 return digestBase64(Digester.DEFAULT_ALGORITHM, byteBuffer);
068 }
069
070 public String digestBase64(String text) {
071 return digestBase64(Digester.DEFAULT_ALGORITHM, text);
072 }
073
074 public String digestBase64(String algorithm, ByteBuffer byteBuffer) {
075 byte[] bytes = digestRaw(algorithm, byteBuffer);
076
077 return Base64.encode(bytes);
078 }
079
080 public String digestBase64(String algorithm, String... text) {
081 byte[] bytes = digestRaw(algorithm, text);
082
083 return Base64.encode(bytes);
084 }
085
086 public String digestHex(ByteBuffer byteBuffer) {
087 return digestHex(Digester.DEFAULT_ALGORITHM, byteBuffer);
088 }
089
090 public String digestHex(String text) {
091 return digestHex(Digester.DEFAULT_ALGORITHM, text);
092 }
093
094 public String digestHex(String algorithm, ByteBuffer byteBuffer) {
095 byte[] bytes = digestRaw(algorithm, byteBuffer);
096
097 return Hex.encodeHexString(bytes);
098 }
099
100 public String digestHex(String algorithm, String... text) {
101 byte[] bytes = digestRaw(algorithm, text);
102
103 return Hex.encodeHexString(bytes);
104 }
105
106 public byte[] digestRaw(ByteBuffer byteBuffer) {
107 return digestRaw(Digester.DEFAULT_ALGORITHM, byteBuffer);
108 }
109
110 public byte[] digestRaw(String text) {
111 return digestRaw(Digester.DEFAULT_ALGORITHM, text);
112 }
113
114 public byte[] digestRaw(String algorithm, ByteBuffer byteBuffer) {
115 MessageDigest messageDigest = null;
116
117 try {
118 messageDigest = MessageDigest.getInstance(algorithm);
119
120 messageDigest.update(byteBuffer);
121 }
122 catch (NoSuchAlgorithmException nsae) {
123 _log.error(nsae, nsae);
124 }
125
126 return messageDigest.digest();
127 }
128
129 public byte[] digestRaw(String algorithm, String... text) {
130 MessageDigest messageDigest = null;
131
132 try {
133 messageDigest = MessageDigest.getInstance(algorithm);
134
135 StringBundler sb = new StringBundler(text.length * 2 - 1);
136
137 for (String t : text) {
138 if (sb.length() > 0) {
139 sb.append(StringPool.COLON);
140 }
141
142 sb.append(t);
143 }
144
145 String s = sb.toString();
146
147 messageDigest.update(s.getBytes(Digester.ENCODING));
148 }
149 catch (NoSuchAlgorithmException nsae) {
150 _log.error(nsae, nsae);
151 }
152 catch (UnsupportedEncodingException uee) {
153 _log.error(uee, uee);
154 }
155
156 return messageDigest.digest();
157 }
158
159 private static final boolean _BASE_64 =
160 PropsValues.PASSWORDS_DIGEST_ENCODING.equals("base64");
161
162 private static Log _log = LogFactoryUtil.getLog(Digester.class);
163
164 }