| /* |
| * 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.util.Iterator; |
| import java.util.List; |
| import org.apache.harmony.security.asn1.ASN1Oid; |
| import org.apache.harmony.security.asn1.ASN1SequenceOf; |
| import org.apache.harmony.security.asn1.ASN1Type; |
| import org.apache.harmony.security.asn1.BerInputStream; |
| import org.apache.harmony.security.asn1.ObjectIdentifier; |
| |
| /** |
| * Extended Key Usage Extension (OID == 2.5.29.37). |
| * |
| * The ASN.1 definition for Extended Key Usage Extension is: |
| * |
| * <pre> |
| * id-ce-extKeyUsage OBJECT IDENTIFIER ::= { id-ce 37 } |
| * |
| * ExtKeyUsageSyntax ::= SEQUENCE SIZE (1..MAX) OF KeyPurposeId |
| * |
| * KeyPurposeId ::= OBJECT IDENTIFIER |
| * </pre> |
| * (as specified in RFC 3280 http://www.ietf.org/rfc/rfc3280.txt |
| */ |
| public final class ExtendedKeyUsage extends ExtensionValue { |
| |
| // the value of extension |
| private List<String> keys; |
| |
| /** |
| * Creates the extension object on the base of its encoded form. |
| */ |
| public ExtendedKeyUsage(byte[] encoding) { |
| super(encoding); |
| } |
| |
| /** |
| * Returns the list of string representation of OIDs corresponding |
| * to key purpose IDs. |
| */ |
| public List<String> getExtendedKeyUsage() throws IOException { |
| if (keys == null) { |
| keys = (List<String>) ASN1.decode(getEncoded()); |
| } |
| return keys; |
| } |
| |
| @Override public byte[] getEncoded() { |
| if (encoding == null) { |
| encoding = ASN1.encode(keys); |
| } |
| return encoding; |
| } |
| |
| @Override public void dumpValue(StringBuilder sb, String prefix) { |
| sb.append(prefix).append("Extended Key Usage: "); |
| if (keys == null) { |
| try { |
| keys = getExtendedKeyUsage(); |
| } catch (IOException e) { |
| // incorrect extension value encoding |
| super.dumpValue(sb); |
| return; |
| } |
| } |
| sb.append('['); |
| for (Iterator<?> it = keys.iterator(); it.hasNext();) { |
| sb.append(" \"").append(it.next()).append('"'); |
| if (it.hasNext()) { |
| sb.append(','); |
| } |
| } |
| sb.append(" ]\n"); |
| } |
| |
| /** |
| * ASN.1 Encoder/Decoder. |
| */ |
| public static final ASN1Type ASN1 = new ASN1SequenceOf(new ASN1Oid() { |
| public Object getDecodedObject(BerInputStream in) throws IOException { |
| int[] oid = (int[]) super.getDecodedObject(in); |
| return ObjectIdentifier.toString(oid); |
| } |
| }); |
| } |