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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.activemq.artemis.utils;

import java.math.BigInteger;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.util.Map;

import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.SecretKeySpec;

/**
 * A DefaultSensitiveDataCodec
 *
 * The default implementation of SensitiveDataCodec.
 * This class is used when the user indicates in the config
 * file to use a masked password but doesn't give a
 * codec implementation.
 *
 * The decode() and encode() method is copied originally from
 * JBoss AS code base.
 */
public class DefaultSensitiveStringCodec implements SensitiveDataCodec {

   private byte[] internalKey = "clusterpassword".getBytes();

   public String decode(Object secret) throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidKeyException, BadPaddingException, IllegalBlockSizeException {
      SecretKeySpec key = new SecretKeySpec(internalKey, "Blowfish");

      BigInteger n = new BigInteger((String) secret, 16);
      byte[] encoding = n.toByteArray();

      // JBAS-3457: fix leading zeros
      if (encoding.length % 8 != 0) {
         int length = encoding.length;
         int newLength = ((length / 8) + 1) * 8;
         int pad = newLength - length; // number of leading zeros
         byte[] old = encoding;
         encoding = new byte[newLength];
         for (int i = old.length - 1; i >= 0; i--) {
            encoding[i + pad] = old[i];
         }
      }

      Cipher cipher = Cipher.getInstance("Blowfish");
      cipher.init(Cipher.DECRYPT_MODE, key);
      byte[] decode = cipher.doFinal(encoding);

      return new String(decode);
   }

   public Object encode(String secret) throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidKeyException, BadPaddingException, IllegalBlockSizeException {
      SecretKeySpec key = new SecretKeySpec(internalKey, "Blowfish");

      Cipher cipher = Cipher.getInstance("Blowfish");
      cipher.init(Cipher.ENCRYPT_MODE, key);
      byte[] encoding = cipher.doFinal(secret.getBytes());
      BigInteger n = new BigInteger(encoding);
      return n.toString(16);
   }

   public void init(Map params) {
      String key = params.get("key");
      if (key != null) {
         updateKey(key);
      }
   }

   /**
    * This main class is as documented on configuration-index.md, where the user can mask the password here. *
    *
    * @param args
    * @throws Exception
    */
   public static void main(String[] args) throws Exception {
      if (args.length != 1) {
         System.err.println("Use: java -cp  org.apache.activemq.artemis.utils.DefaultSensitiveStringCodec password-to-encode");
         System.err.println("Error: no password on the args");
         System.exit(-1);
      }
      DefaultSensitiveStringCodec codec = new DefaultSensitiveStringCodec();
      Object encode = codec.encode(args[0]);
      System.out.println("Encoded password (without quotes): \"" + encode + "\"");
   }

   private void updateKey(String key) {
      this.internalKey = key.getBytes();
   }

}