/*
* 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.server.security.auth.manager;
import java.security.Principal;
import javax.security.auth.Subject;
import javax.security.sasl.SaslException;
import javax.security.sasl.SaslServer;
import org.apache.qpid.server.security.auth.AuthenticationResult;
import org.apache.qpid.server.security.auth.UsernamePrincipal;
import org.apache.qpid.server.security.auth.sasl.anonymous.AnonymousInitialiser;
import org.apache.qpid.server.security.auth.sasl.anonymous.AnonymousSaslServer;
public class AnonymousAuthenticationManager implements AuthenticationManager
{
private static final AnonymousInitialiser SASL_INITIALISER = new AnonymousInitialiser();
private static final String ANONYMOUS = SASL_INITIALISER.getMechanismName();
public static final String ANONYMOUS_USERNAME = "ANONYMOUS";
public static final Principal ANONYMOUS_PRINCIPAL = new UsernamePrincipal(ANONYMOUS_USERNAME);
public static final Subject ANONYMOUS_SUBJECT = new Subject();
static
{
ANONYMOUS_SUBJECT.getPrincipals().add(ANONYMOUS_PRINCIPAL);
}
private static final AuthenticationResult ANONYMOUS_AUTHENTICATION = new AuthenticationResult(ANONYMOUS_PRINCIPAL);
static final AnonymousAuthenticationManager INSTANCE = new AnonymousAuthenticationManager();
AnonymousAuthenticationManager()
{
}
@Override
public void initialise()
{
}
@Override
public String getMechanisms()
{
return ANONYMOUS;
}
@Override
public SaslServer createSaslServer(String mechanism, String localFQDN, Principal externalPrincipal) throws SaslException
{
if(ANONYMOUS.equals(mechanism))
{
return new AnonymousSaslServer();
}
else
{
throw new SaslException("Unknown mechanism: " + mechanism);
}
}
@Override
public AuthenticationResult authenticate(SaslServer server, byte[] response)
{
try
{
// Process response from the client
byte[] challenge = server.evaluateResponse(response != null ? response : new byte[0]);
if (server.isComplete())
{
return ANONYMOUS_AUTHENTICATION;
}
else
{
return new AuthenticationResult(challenge, AuthenticationResult.AuthenticationStatus.CONTINUE);
}
}
catch (SaslException e)
{
return new AuthenticationResult(AuthenticationResult.AuthenticationStatus.ERROR, e);
}
}
@Override
public AuthenticationResult authenticate(String username, String password)
{
return ANONYMOUS_AUTHENTICATION;
}
@Override
public void close()
{
}
}