| /* |
| * |
| * 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.qpid.client.security; |
| |
| import java.io.IOException; |
| import java.io.UnsupportedEncodingException; |
| import java.security.MessageDigest; |
| import java.security.NoSuchAlgorithmException; |
| |
| import javax.security.auth.callback.Callback; |
| import javax.security.auth.callback.NameCallback; |
| import javax.security.auth.callback.PasswordCallback; |
| import javax.security.auth.callback.UnsupportedCallbackException; |
| |
| import org.apache.qpid.jms.ConnectionURL; |
| |
| public class UsernameHashedPasswordCallbackHandler implements AMQCallbackHandler |
| { |
| private ConnectionURL _connectionURL; |
| |
| /** |
| * @see org.apache.qpid.client.security.AMQCallbackHandler#initialise(org.apache.qpid.jms.ConnectionURL) |
| */ |
| @Override |
| public void initialise(ConnectionURL connectionURL) |
| { |
| _connectionURL = connectionURL; |
| } |
| |
| public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException |
| { |
| for (int i = 0; i < callbacks.length; i++) |
| { |
| Callback cb = callbacks[i]; |
| if (cb instanceof NameCallback) |
| { |
| ((NameCallback) cb).setName(_connectionURL.getUsername()); |
| } |
| else if (cb instanceof PasswordCallback) |
| { |
| try |
| { |
| ((PasswordCallback) cb).setPassword(getHash(_connectionURL.getPassword())); |
| } |
| catch (NoSuchAlgorithmException e) |
| { |
| UnsupportedCallbackException uce = new UnsupportedCallbackException(cb); |
| uce.initCause(e); |
| throw uce; |
| } |
| } |
| else |
| { |
| throw new UnsupportedCallbackException(cb); |
| } |
| } |
| } |
| |
| private char[] getHash(String text) throws NoSuchAlgorithmException, UnsupportedEncodingException |
| { |
| |
| byte[] data = text.getBytes("utf-8"); |
| |
| MessageDigest md = MessageDigest.getInstance("MD5"); |
| |
| for (byte b : data) |
| { |
| md.update(b); |
| } |
| |
| byte[] digest = md.digest(); |
| |
| char[] hash = new char[digest.length]; |
| |
| int index = 0; |
| for (byte b : digest) |
| { |
| hash[index++] = (char) b; |
| } |
| |
| return hash; |
| } |
| |
| } |