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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 2016 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.x500.cert;

import java.util.List;

import org.wildfly.common.Assert;
import org.wildfly.security.asn1.ASN1Encodable;
import org.wildfly.security.asn1.ASN1Encoder;
import org.wildfly.security.x500.GeneralName;
import org.wildfly.security.x500.X500;

/**
 * A name constraints extension as defined by RFC 5280 § 4.2.1.10.
 *
 * @author David M. Lloyd
 */
public final class NameConstraintsExtension extends X509CertificateExtension {
    private final List permittedSubtrees;
    private final List excludedSubtrees;

    /**
     * Construct a new instance.
     *
     * @param permittedSubtrees the permitted subtrees list (must not be {@code null}, may be empty)
     * @param excludedSubtrees the excluded subtrees list (must not be {@code null}, may be empty)
     */
    public NameConstraintsExtension(final List permittedSubtrees, final List excludedSubtrees) {
        super(true);
        Assert.checkNotNullParam("permittedSubtrees", permittedSubtrees);
        Assert.checkNotNullParam("excludedSubtrees", excludedSubtrees);
        this.permittedSubtrees = permittedSubtrees;
        this.excludedSubtrees = excludedSubtrees;
    }

    public String getId() {
        return X500.OID_CE_NAME_CONSTRAINTS;
    }

    public void encodeTo(final ASN1Encoder encoder) {
        encoder.startSequence();
        if (! permittedSubtrees.isEmpty()) {
            encoder.encodeImplicit(0);
            encoder.startSequence();
            for (GeneralSubtree subtree : permittedSubtrees) {
                subtree.encodeTo(encoder);
            }
            encoder.endSequence();
        }
        if (! excludedSubtrees.isEmpty()) {
            encoder.encodeImplicit(1);
            encoder.startSequence();
            for (GeneralSubtree subtree : excludedSubtrees) {
                subtree.encodeTo(encoder);
            }
            encoder.endSequence();
        }
        encoder.endSequence();
    }

    /**
     * A general subtree for a name constraint.
     */
    public static final class GeneralSubtree implements ASN1Encodable {
        private final GeneralName base;
        private final int minimumDistance;
        private final int maximumDistance;

        /**
         * Construct a new instance.
         *
         * @param base the base name (must not be {@code null})
         * @param minimumDistance the minimum distance (must be >= 0)
         * @param maximumDistance the maximum distance (must be -1 indicating "not specified" or >= {@code minimumDistance})
         */
        public GeneralSubtree(final GeneralName base, final int minimumDistance, final int maximumDistance) {
            this.base = base;
            Assert.checkMinimumParameter("minimumDistance", 0, minimumDistance);
            if (maximumDistance != -1) {
                Assert.checkMinimumParameter("maximumDistance", minimumDistance, maximumDistance);
            }
            this.minimumDistance = minimumDistance;
            this.maximumDistance = maximumDistance;
        }

        public void encodeTo(final ASN1Encoder encoder) {
            encoder.startSequence();
            base.encodeTo(encoder);
            if (minimumDistance > 0) {
                encoder.encodeImplicit(0);
                encoder.encodeInteger(minimumDistance);
            }
            if (maximumDistance >= 0) {
                encoder.encodeImplicit(1);
                encoder.encodeInteger(maximumDistance);
            }
        }
    }
}




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