| /* |
| * 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. |
| */ |
| |
| /** |
| * @author Vladimir N. Molotkov, Alexander Y. Kleymenov |
| * @version $Revision$ |
| */ |
| |
| package org.apache.harmony.security.x509; |
| |
| import org.apache.harmony.security.asn1.ASN1Implicit; |
| import org.apache.harmony.security.asn1.ASN1Integer; |
| import org.apache.harmony.security.asn1.ASN1Sequence; |
| import org.apache.harmony.security.asn1.ASN1Type; |
| import org.apache.harmony.security.asn1.BerInputStream; |
| |
| /** |
| * The class encapsulates the ASN.1 DER encoding/decoding work |
| * with the GeneralSubtree structure which is a part of X.509 certificate: |
| * (as specified in RFC 3280 - |
| * Internet X.509 Public Key Infrastructure. |
| * Certificate and Certificate Revocation List (CRL) Profile. |
| * http://www.ietf.org/rfc/rfc3280.txt): |
| * |
| * <pre> |
| * |
| * GeneralSubtree ::= SEQUENCE { |
| * base GeneralName, |
| * minimum [0] BaseDistance DEFAULT 0, |
| * maximum [1] BaseDistance OPTIONAL } |
| * |
| * BaseDistance ::= INTEGER (0..MAX) |
| * |
| * </pre> |
| * |
| * @see org.apache.harmony.security.x509.NameConstraints |
| * @see org.apache.harmony.security.x509.GeneralName |
| */ |
| public class GeneralSubtree { |
| |
| // the value of base field of the structure |
| private final GeneralName base; |
| // the value of minimum field of the structure |
| private final int minimum; |
| // the value of maximum field of the structure |
| private final int maximum; |
| // the ASN.1 encoded form of GeneralSubtree |
| private byte[] encoding; |
| |
| /** |
| * TODO |
| * @param base: GeneralName |
| */ |
| public GeneralSubtree(GeneralName base) { |
| this(base, 0, -1); |
| } |
| |
| /** |
| * TODO |
| * @param base: GeneralName |
| * @param minimum: int |
| */ |
| public GeneralSubtree(GeneralName base, int minimum) { |
| this(base, minimum, -1); |
| } |
| |
| /** |
| * TODO |
| * @param base: GeneralName |
| * @param minimum: int |
| * @param maximum: int |
| */ |
| public GeneralSubtree(GeneralName base, int minimum, int maximum) { |
| this.base = base; |
| this.minimum = minimum; |
| this.maximum = maximum; |
| } |
| |
| /** |
| * Returns the value of base field of the structure. |
| * @return base |
| */ |
| public GeneralName getBase() { |
| return base; |
| } |
| |
| /** |
| * Returns the value of maximum field of the structure. |
| * @return maximum |
| */ |
| public int getMaximum() { |
| return maximum; |
| } |
| |
| /** |
| * Returns the value of minimum field of the structure. |
| * @return minimum |
| */ |
| public int getMinimum() { |
| return minimum; |
| } |
| |
| /** |
| * Returns ASN.1 encoded form of this X.509 GeneralSubtree value. |
| * @return a byte array containing ASN.1 encode form. |
| */ |
| public byte[] getEncoded() { |
| if (encoding == null) { |
| encoding = ASN1.encode(this); |
| } |
| return encoding; |
| } |
| |
| /** |
| * Places the string representation of extension value |
| * into the StringBuffer object. |
| */ |
| public void dumpValue(StringBuffer buffer, String prefix) { |
| buffer.append(prefix).append("General Subtree: [\n"); |
| buffer.append(prefix).append(" base: ").append(base).append('\n'); |
| buffer.append(prefix).append(" minimum: ") |
| .append(minimum).append('\n'); |
| if (maximum >= 0) { |
| buffer.append(prefix).append(" maximum: ") |
| .append(maximum).append('\n'); |
| } |
| buffer.append(prefix).append("]\n"); |
| } |
| |
| /** |
| * ASN.1 DER X.509 GeneralSubtree encoder/decoder class. |
| */ |
| public static final ASN1Sequence ASN1 = new ASN1Sequence(new ASN1Type[] { |
| GeneralName.ASN1, |
| new ASN1Implicit(0, ASN1Integer.getInstance()), |
| new ASN1Implicit(1, ASN1Integer.getInstance()) }) { |
| { |
| setDefault(new byte[] {0}, 1); // minimum 0 |
| setOptional(2); // maximum optional |
| } |
| |
| protected Object getDecodedObject(BerInputStream in) { |
| Object[] values = (Object[]) in.content; |
| int maximum = -1; // is optional maximum missing? |
| if (values[2] != null) { |
| maximum = ASN1Integer.toIntValue(values[2]); // no! |
| } |
| return new GeneralSubtree((GeneralName) values[0], |
| ASN1Integer.toIntValue(values[1]), |
| maximum); |
| } |
| |
| protected void getValues(Object object, Object[] values) { |
| |
| GeneralSubtree gs = (GeneralSubtree) object; |
| |
| values[0] = gs.base; |
| values[1] = ASN1Integer.fromIntValue(gs.minimum); |
| if (gs.maximum > -1) { |
| values[2] = ASN1Integer.fromIntValue(gs.maximum); |
| } |
| } |
| }; |
| } |