org.wildfly.security.sasl.util.PrivilegedSaslServerFactory Maven / Gradle / Ivy
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* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed 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.wildfly.security.sasl.util;
import static java.security.AccessController.doPrivileged;
import java.lang.reflect.UndeclaredThrowableException;
import java.security.AccessControlContext;
import java.security.AccessController;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
import java.util.Map;
import javax.security.auth.callback.CallbackHandler;
import javax.security.sasl.SaslServer;
import javax.security.sasl.SaslServerFactory;
import javax.security.sasl.SaslException;
/**
* A {@code SaslServerFactory} whose {@code SaslServer} instances evaluate challenges and wrap/unwrap requests in a
* privileged context.
*
* @author David M. Lloyd
*/
public final class PrivilegedSaslServerFactory extends AbstractDelegatingSaslServerFactory {
private final AccessControlContext context;
/**
* Construct a new instance.
*
* @param delegate the delegate SASL server factory
*/
public PrivilegedSaslServerFactory(final SaslServerFactory delegate) {
this(delegate, AccessController.getContext());
}
PrivilegedSaslServerFactory(final SaslServerFactory delegate, final AccessControlContext context) {
super(delegate);
this.context = context;
}
public SaslServer createSaslServer(final String mechanism, final String protocol, final String serverName, final Map props, final CallbackHandler cbh) throws SaslException {
final SaslServer saslServer;
try {
saslServer = doPrivileged((PrivilegedExceptionAction) () -> delegate.createSaslServer(mechanism, protocol, serverName, props, cbh));
} catch (PrivilegedActionException pae) {
try {
throw pae.getCause();
} catch (SaslException | RuntimeException | Error e) {
throw e;
} catch (Throwable throwable) {
throw new UndeclaredThrowableException(throwable);
}
}
return saslServer == null ? null : new PrivilegedSaslServer(saslServer, context);
}
}