author | igerasim |
Tue, 02 Oct 2018 10:19:07 -0700 | |
changeset 51986 | c1db377f6300 |
parent 47216 | 71c04702a3d5 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005, 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.util.*; |
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import sun.security.util.BitArray; |
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import sun.security.util.DerOutputStream; |
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import sun.security.util.DerValue; |
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/** |
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* Represents the DistributionPointName ASN.1 type. |
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* |
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* It is used in the CRL Distribution Points Extension (OID = 2.5.29.31) |
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* and the Issuing Distribution Point Extension (OID = 2.5.29.28). |
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* <p> |
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* Its ASN.1 definition is: |
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* <pre> |
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* |
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* DistributionPointName ::= CHOICE { |
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* fullName [0] GeneralNames, |
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* nameRelativeToCRLIssuer [1] RelativeDistinguishedName } |
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* |
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* GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName |
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* |
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* GeneralName ::= CHOICE { |
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* otherName [0] INSTANCE OF OTHER-NAME, |
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* rfc822Name [1] IA5String, |
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* dNSName [2] IA5String, |
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* x400Address [3] ORAddress, |
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* directoryName [4] Name, |
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* ediPartyName [5] EDIPartyName, |
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* uniformResourceIdentifier [6] IA5String, |
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* iPAddress [7] OCTET STRING, |
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* registeredID [8] OBJECT IDENTIFIER } |
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* |
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* RelativeDistinguishedName ::= SET OF AttributeTypeAndValue |
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* |
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* AttributeTypeAndValue ::= SEQUENCE { |
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* type AttributeType, |
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* value AttributeValue } |
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* |
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* AttributeType ::= OBJECT IDENTIFIER |
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* |
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* AttributeValue ::= ANY DEFINED BY AttributeType |
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* |
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* </pre> |
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* <p> |
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* Instances of this class are designed to be immutable. However, since this |
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* is an internal API we do not use defensive cloning for values for |
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* performance reasons. It is the responsibility of the consumer to ensure |
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* that no mutable elements are modified. |
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* |
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* @see CRLDistributionPointsExtension |
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* @see IssuingDistributionPointExtension |
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* @since 1.6 |
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*/ |
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public class DistributionPointName { |
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// ASN.1 context specific tag values |
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private static final byte TAG_FULL_NAME = 0; |
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private static final byte TAG_RELATIVE_NAME = 1; |
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// Only one of fullName and relativeName can be set |
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private GeneralNames fullName = null; |
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private RDN relativeName = null; |
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// Cached hashCode value |
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private volatile int hashCode; |
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/** |
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* Creates a distribution point name using a full name. |
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* |
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* @param fullName the name for the distribution point. |
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* @exception IllegalArgumentException if <code>fullName</code> is null. |
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*/ |
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public DistributionPointName(GeneralNames fullName) { |
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if (fullName == null) { |
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throw new IllegalArgumentException("fullName must not be null"); |
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} |
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this.fullName = fullName; |
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} |
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/** |
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* Creates a distribution point name using a relative name. |
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* |
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* @param relativeName the name of the distribution point relative to |
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* the name of the issuer of the CRL. |
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* @exception IllegalArgumentException if <code>relativeName</code> is null. |
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*/ |
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public DistributionPointName(RDN relativeName) { |
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if (relativeName == null) { |
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throw new IllegalArgumentException("relativeName must not be null"); |
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} |
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this.relativeName = relativeName; |
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} |
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/** |
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* Creates a distribution point name from its DER-encoded form. |
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* |
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* @param encoding the DER-encoded value. |
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* @throws IOException on decoding error. |
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*/ |
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public DistributionPointName(DerValue encoding) throws IOException { |
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if (encoding.isContextSpecific(TAG_FULL_NAME) && |
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encoding.isConstructed()) { |
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encoding.resetTag(DerValue.tag_Sequence); |
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fullName = new GeneralNames(encoding); |
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} else if (encoding.isContextSpecific(TAG_RELATIVE_NAME) && |
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encoding.isConstructed()) { |
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encoding.resetTag(DerValue.tag_Set); |
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relativeName = new RDN(encoding); |
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} else { |
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throw new IOException("Invalid encoding for DistributionPointName"); |
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} |
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} |
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/** |
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* Returns the full name for the distribution point or null if not set. |
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*/ |
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public GeneralNames getFullName() { |
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return fullName; |
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} |
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/** |
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* Returns the relative name for the distribution point or null if not set. |
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*/ |
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public RDN getRelativeName() { |
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return relativeName; |
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} |
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/** |
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* Encodes the distribution point name and writes it to the DerOutputStream. |
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* |
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* @param out the output stream. |
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* @exception IOException on encoding error. |
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*/ |
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public void encode(DerOutputStream out) throws IOException { |
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DerOutputStream theChoice = new DerOutputStream(); |
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if (fullName != null) { |
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fullName.encode(theChoice); |
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out.writeImplicit( |
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DerValue.createTag(DerValue.TAG_CONTEXT, true, TAG_FULL_NAME), |
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theChoice); |
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} else { |
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relativeName.encode(theChoice); |
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out.writeImplicit( |
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DerValue.createTag(DerValue.TAG_CONTEXT, true, |
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TAG_RELATIVE_NAME), |
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theChoice); |
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} |
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} |
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/** |
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* Compare an object to this distribution point name for equality. |
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* |
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* @param obj Object to be compared to this |
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* @return true if objects match; false otherwise |
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*/ |
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public boolean equals(Object obj) { |
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if (this == obj) { |
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return true; |
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} |
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if (obj instanceof DistributionPointName == false) { |
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return false; |
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} |
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DistributionPointName other = (DistributionPointName)obj; |
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return Objects.equals(this.fullName, other.fullName) && |
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Objects.equals(this.relativeName, other.relativeName); |
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} |
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/** |
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* Returns the hash code for this distribution point name. |
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* |
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* @return the hash code. |
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*/ |
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public int hashCode() { |
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int hash = hashCode; |
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if (hash == 0) { |
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hash = 1; |
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if (fullName != null) { |
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hash += fullName.hashCode(); |
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} else { |
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hash += relativeName.hashCode(); |
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} |
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hashCode = hash; |
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} |
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return hash; |
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} |
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/** |
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* Returns a printable string of the distribution point name. |
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*/ |
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public String toString() { |
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StringBuilder sb = new StringBuilder(); |
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sb.append("DistributionPointName:\n "); |
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if (fullName != null) { |
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sb.append(fullName); |
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} else { |
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sb.append(relativeName); |
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} |
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sb.append('\n'); |
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return sb.toString(); |
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} |
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} |