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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS 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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/*
 * JBoss, Home of Professional Open Source.
 * 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 javax.security.sasl.SaslException;
import javax.security.sasl.SaslServer;

import org.wildfly.common.Assert;

/**
 * A {@code SaslServer} which evaluates responses and wrap/unwrap requests in an privileged context.
 *
 * @author David M. Lloyd
 */
public final class PrivilegedSaslServer extends AbstractDelegatingSaslServer implements SaslWrapper {
    private final AccessControlContext accessControlContext;

    PrivilegedSaslServer(final SaslServer delegate, final AccessControlContext accessControlContext) {
        super(delegate);
        Assert.checkNotNullParam("delegate", delegate);
        Assert.checkNotNullParam("accessControlContext", accessControlContext);
        this.accessControlContext = accessControlContext;
    }

    public PrivilegedSaslServer(final SaslServer delegate) {
        this(delegate, AccessController.getContext());
    }

    public byte[] evaluateResponse(final byte[] response) throws SaslException {
        try {
            return doPrivileged((PrivilegedExceptionAction) () -> delegate.evaluateResponse(response), accessControlContext);
        } catch (PrivilegedActionException pae) {
            try {
                throw pae.getCause();
            } catch (SaslException | RuntimeException | Error e) {
                throw e;
            } catch (Throwable throwable) {
                throw new UndeclaredThrowableException(throwable);
            }
        }
    }

    public byte[] unwrap(final byte[] incoming, final int offset, final int len) throws SaslException {
        try {
            return doPrivileged((PrivilegedExceptionAction) () -> delegate.unwrap(incoming, offset, len), accessControlContext);
        } catch (PrivilegedActionException pae) {
            try {
                throw pae.getCause();
            } catch (SaslException | RuntimeException | Error e) {
                throw e;
            } catch (Throwable throwable) {
                throw new UndeclaredThrowableException(throwable);
            }
        }
    }

    public byte[] wrap(final byte[] outgoing, final int offset, final int len) throws SaslException {
        try {
            return doPrivileged((PrivilegedExceptionAction) () -> delegate.wrap(outgoing, offset, len), accessControlContext);
        } catch (PrivilegedActionException pae) {
            try {
                throw pae.getCause();
            } catch (SaslException | RuntimeException | Error e) {
                throw e;
            } catch (Throwable throwable) {
                throw new UndeclaredThrowableException(throwable);
            }
        }
    }
}