| /* |
| * 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.harmony.security.x509; |
| |
| import java.io.IOException; |
| import java.math.BigInteger; |
| import org.apache.harmony.security.asn1.ASN1Boolean; |
| 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; |
| |
| /** |
| * Basic Constraints Extension (OID == 2.5.29.19). |
| * |
| * The ASN.1 definition for Basic Constraints Extension is: |
| * |
| * <pre> |
| * id-ce-basicConstraints OBJECT IDENTIFIER ::= { id-ce 19 } |
| * |
| * BasicConstraints ::= SEQUENCE { |
| * ca BOOLEAN DEFAULT FALSE, |
| * pathLenConstraint INTEGER (0..MAX) OPTIONAL |
| * } |
| * </pre> |
| * (as specified in RFC 3280) |
| */ |
| public final class BasicConstraints extends ExtensionValue { |
| /** is CA */ |
| private boolean ca = false; |
| /** path len constraint */ |
| private int pathLenConstraint = Integer.MAX_VALUE; |
| |
| /** |
| * Creates the extension object on the base of its encoded form. |
| */ |
| public BasicConstraints(byte[] encoding) throws IOException { |
| super(encoding); |
| Object[] values = (Object[]) ASN1.decode(encoding); |
| ca = (Boolean) values[0]; |
| if (values[1] != null) { |
| pathLenConstraint = new BigInteger((byte[]) values[1]).intValue(); |
| } |
| } |
| |
| public boolean getCa() { |
| return ca; |
| } |
| |
| public int getPathLenConstraint() { |
| return pathLenConstraint; |
| } |
| |
| /** |
| * Returns the encoded form of the object. |
| */ |
| public byte[] getEncoded() { |
| if (encoding == null) { |
| encoding = ASN1.encode(new Object[]{ca, BigInteger.valueOf(pathLenConstraint) }); |
| } |
| return encoding; |
| } |
| |
| public void dumpValue(StringBuilder sb, String prefix) { |
| sb.append(prefix).append("BasicConstraints [\n").append(prefix) |
| .append(" CA: ").append(ca) |
| .append("\n ").append(prefix).append("pathLenConstraint: ") |
| .append(pathLenConstraint).append('\n').append(prefix) |
| .append("]\n"); |
| } |
| |
| /** |
| * ASN.1 Encoder/Decoder. |
| */ |
| public static final ASN1Type ASN1 = new ASN1Sequence(new ASN1Type[] { |
| ASN1Boolean.getInstance(), ASN1Integer.getInstance() }) { |
| { |
| setDefault(Boolean.FALSE, 0); |
| setOptional(1); |
| } |
| |
| public Object getDecodedObject(BerInputStream in) throws IOException { |
| return in.content; |
| } |
| |
| protected void getValues(Object object, Object[] values) { |
| Object[] array = (Object[]) object; |
| values[0] = array[0]; |
| values[1] = ((BigInteger) array[1]).toByteArray(); |
| } |
| }; |
| } |