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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.qpid.client.security;
import java.security.MessageDigest;
import java.util.Arrays;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.NameCallback;
import javax.security.auth.callback.PasswordCallback;
import junit.framework.TestCase;
import org.apache.qpid.client.AMQConnection;
import org.apache.qpid.client.AMQConnectionURL;
import org.apache.qpid.client.MockAMQConnection;
import org.apache.qpid.client.protocol.AMQProtocolHandler;
import org.apache.qpid.client.protocol.AMQProtocolSession;
/**
* Unit tests for the UsernameHashPasswordCallbackHandler. This callback handler is
* used by the CRAM-MD5-HASHED SASL mechanism.
*
*/
public class UsernameHashedPasswordCallbackHandlerTest extends TestCase
{
private AMQCallbackHandler _callbackHandler = new UsernameHashedPasswordCallbackHandler(); // Class under test
private static final String PROMPT_UNUSED = "unused";
@Override
protected void setUp() throws Exception
{
super.setUp();
final String url = "amqp://username:password@client/test?brokerlist='vm://:1'";
_callbackHandler.initialise(new AMQConnectionURL(url));
}
/**
* Tests that the callback handler can correctly retrieve the username from the connection url.
*/
public void testNameCallback() throws Exception
{
final String expectedName = "username";
NameCallback nameCallback = new NameCallback(PROMPT_UNUSED);
assertNull("Unexpected name before test", nameCallback.getName());
_callbackHandler.handle(new Callback[] {nameCallback});
assertEquals("Unexpected name", expectedName, nameCallback.getName());
}
/**
* Tests that the callback handler can correctly retrieve the password from the connection url
* and calculate a MD5.
*/
public void testDigestedPasswordCallback() throws Exception
{
final char[] expectedPasswordDigested = getHashPassword("password");
PasswordCallback passwordCallback = new PasswordCallback(PROMPT_UNUSED, false);
assertNull("Unexpected password before test", passwordCallback.getPassword());
_callbackHandler.handle(new Callback[] {passwordCallback});
assertTrue("Unexpected password", Arrays.equals(expectedPasswordDigested, passwordCallback.getPassword()));
}
private char[] getHashPassword(final String password) throws Exception
{
MessageDigest md5Digester = MessageDigest.getInstance("MD5");
final byte[] digest = md5Digester.digest(password.getBytes("UTF-8"));
char[] hash = new char[digest.length];
int index = 0;
for (byte b : digest)
{
hash[index++] = (char) b;
}
return hash;
}
}
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