author | chegar |
Sun, 17 Aug 2014 15:54:13 +0100 | |
changeset 25859 | 3317bb8137f4 |
parent 10336 | jdk/src/share/classes/sun/security/x509/OtherName.java@0bb1999251f8 |
child 30374 | 2abaf49910ea |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.security.x509; |
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import java.io.IOException; |
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import java.lang.reflect.Constructor; |
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import java.util.Arrays; |
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import sun.security.util.*; |
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/** |
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* This class represents the OtherName as required by the GeneralNames |
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* ASN.1 object. It supplies the generic framework to allow specific |
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* Other Name types, and also provides minimal support for unrecognized |
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* Other Name types. |
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* |
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* The ASN.1 definition for OtherName is: |
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* <pre> |
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* OtherName ::= SEQUENCE { |
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* type-id OBJECT IDENTIFIER, |
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* value [0] EXPLICIT ANY DEFINED BY type-id |
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* } |
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* </pre> |
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* @author Hemma Prafullchandra |
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*/ |
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public class OtherName implements GeneralNameInterface { |
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private String name; |
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private ObjectIdentifier oid; |
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private byte[] nameValue = null; |
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private GeneralNameInterface gni = null; |
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private static final byte TAG_VALUE = 0; |
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private int myhash = -1; |
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/** |
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* Create the OtherName object from a passed ObjectIdentfier and |
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* byte array name value |
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* |
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* @param oid ObjectIdentifier of this OtherName object |
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* @param value the DER-encoded value of the OtherName |
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* @throws IOException on error |
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*/ |
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public OtherName(ObjectIdentifier oid, byte[] value) throws IOException { |
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if (oid == null || value == null) { |
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throw new NullPointerException("parameters may not be null"); |
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} |
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this.oid = oid; |
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this.nameValue = value; |
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gni = getGNI(oid, value); |
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if (gni != null) { |
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name = gni.toString(); |
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} else { |
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name = "Unrecognized ObjectIdentifier: " + oid.toString(); |
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} |
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} |
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/** |
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* Create the OtherName object from the passed encoded Der value. |
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* |
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* @param derValue the encoded DER OtherName. |
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* @exception IOException on error. |
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*/ |
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public OtherName(DerValue derValue) throws IOException { |
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DerInputStream in = derValue.toDerInputStream(); |
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oid = in.getOID(); |
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DerValue val = in.getDerValue(); |
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nameValue = val.toByteArray(); |
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gni = getGNI(oid, nameValue); |
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if (gni != null) { |
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name = gni.toString(); |
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} else { |
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name = "Unrecognized ObjectIdentifier: " + oid.toString(); |
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} |
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} |
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/** |
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* Get ObjectIdentifier |
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*/ |
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public ObjectIdentifier getOID() { |
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//XXXX May want to consider cloning this |
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return oid; |
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} |
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/** |
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* Get name value |
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*/ |
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public byte[] getNameValue() { |
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return nameValue.clone(); |
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} |
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/** |
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* Get GeneralNameInterface |
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*/ |
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private GeneralNameInterface getGNI(ObjectIdentifier oid, byte[] nameValue) |
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throws IOException { |
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try { |
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Class<?> extClass = OIDMap.getClass(oid); |
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if (extClass == null) { // Unsupported OtherName |
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return null; |
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} |
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Class<?>[] params = { Object.class }; |
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Constructor<?> cons = extClass.getConstructor(params); |
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Object[] passed = new Object[] { nameValue }; |
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GeneralNameInterface gni = |
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(GeneralNameInterface)cons.newInstance(passed); |
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return gni; |
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} catch (Exception e) { |
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throw new IOException("Instantiation error: " + e, e); |
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} |
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} |
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/** |
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* Return the type of the GeneralName. |
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*/ |
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public int getType() { |
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return GeneralNameInterface.NAME_ANY; |
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} |
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/** |
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* Encode the Other name into the DerOutputStream. |
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* |
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* @param out the DER stream to encode the Other-Name to. |
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* @exception IOException on encoding errors. |
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*/ |
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public void encode(DerOutputStream out) throws IOException { |
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if (gni != null) { |
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// This OtherName has a supported class |
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gni.encode(out); |
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return; |
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} else { |
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// This OtherName has no supporting class |
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DerOutputStream tmp = new DerOutputStream(); |
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tmp.putOID(oid); |
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tmp.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, TAG_VALUE), nameValue); |
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out.write(DerValue.tag_Sequence, tmp); |
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} |
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} |
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/** |
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* Compares this name with another, for equality. |
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* |
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* @return true iff the names are identical. |
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*/ |
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public boolean equals(Object other) { |
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if (this == other) { |
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return true; |
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} |
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if (!(other instanceof OtherName)) { |
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return false; |
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} |
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OtherName otherOther = (OtherName)other; |
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if (!(otherOther.oid.equals((Object)oid))) { |
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return false; |
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} |
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GeneralNameInterface otherGNI = null; |
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try { |
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otherGNI = getGNI(otherOther.oid, otherOther.nameValue); |
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} catch (IOException ioe) { |
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return false; |
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} |
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boolean result; |
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if (otherGNI != null) { |
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try { |
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result = (otherGNI.constrains(this) == NAME_MATCH); |
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} catch (UnsupportedOperationException ioe) { |
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result = false; |
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} |
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} else { |
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result = Arrays.equals(nameValue, otherOther.nameValue); |
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} |
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return result; |
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} |
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/** |
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* Returns the hash code for this OtherName. |
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* |
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* @return a hash code value. |
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*/ |
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public int hashCode() { |
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if (myhash == -1) { |
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myhash = 37 + oid.hashCode(); |
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for (int i = 0; i < nameValue.length; i++) { |
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myhash = 37 * myhash + nameValue[i]; |
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} |
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} |
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return myhash; |
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} |
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/** |
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* Convert the name into user readable string. |
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*/ |
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public String toString() { |
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return "Other-Name: " + name; |
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} |
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/** |
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* Return type of constraint inputName places on this name:<ul> |
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* <li>NAME_DIFF_TYPE = -1: input name is different type from name |
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* (i.e. does not constrain). |
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* <li>NAME_MATCH = 0: input name matches name. |
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* <li>NAME_NARROWS = 1: input name narrows name (is lower in the |
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* naming subtree) |
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* <li>NAME_WIDENS = 2: input name widens name (is higher in the |
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* naming subtree) |
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* <li>NAME_SAME_TYPE = 3: input name does not match or narrow name, |
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* but is same type. |
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* </ul>. These results are used in checking NameConstraints during |
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* certification path verification. |
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* |
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* @param inputName to be checked for being constrained |
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* @returns constraint type above |
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* @throws UnsupportedOperationException if name is same type, but |
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* comparison operations are not supported for this name type. |
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*/ |
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public int constrains(GeneralNameInterface inputName) { |
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int constraintType; |
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if (inputName == null) { |
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constraintType = NAME_DIFF_TYPE; |
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} else if (inputName.getType() != NAME_ANY) { |
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constraintType = NAME_DIFF_TYPE; |
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} else { |
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throw new UnsupportedOperationException("Narrowing, widening, " |
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+ "and matching are not supported for OtherName."); |
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} |
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return constraintType; |
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} |
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/** |
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* Return subtree depth of this name for purposes of determining |
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* NameConstraints minimum and maximum bounds. |
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* |
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* @returns distance of name from root |
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* @throws UnsupportedOperationException if not supported for this name type |
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*/ |
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public int subtreeDepth() { |
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throw new UnsupportedOperationException |
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("subtreeDepth() not supported for generic OtherName"); |
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} |
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} |