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8187443: Forest Consolidation: Move files to unified layout
Reviewed-by: darcy, ihse
This commit is contained in:
Erik Joelsson
parent
270fe13182
commit
3789983e89
56923 changed files with 3 additions and 15727 deletions
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/*
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* Copyright (c) 1997, 2009, 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.io.OutputStream;
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import java.util.Enumeration;
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import sun.security.util.*;
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/**
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* This class represents the Basic Constraints Extension.
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*
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* <p>The basic constraints extension identifies whether the subject of the
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* certificate is a CA and how deep a certification path may exist
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* through that CA.
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*
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* <pre>
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* The ASN.1 syntax for this extension is:
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* BasicConstraints ::= SEQUENCE {
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* cA BOOLEAN DEFAULT FALSE,
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* pathLenConstraint INTEGER (0..MAX) OPTIONAL
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* }
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* </pre>
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* @author Amit Kapoor
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* @author Hemma Prafullchandra
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* @see CertAttrSet
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* @see Extension
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*/
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public class BasicConstraintsExtension extends Extension
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implements CertAttrSet<String> {
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/**
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* Identifier for this attribute, to be used with the
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* get, set, delete methods of Certificate, x509 type.
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*/
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public static final String IDENT = "x509.info.extensions.BasicConstraints";
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/**
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* Attribute names.
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*/
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public static final String NAME = "BasicConstraints";
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public static final String IS_CA = "is_ca";
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public static final String PATH_LEN = "path_len";
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// Private data members
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private boolean ca = false;
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private int pathLen = -1;
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// Encode this extension value
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private void encodeThis() throws IOException {
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DerOutputStream out = new DerOutputStream();
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DerOutputStream tmp = new DerOutputStream();
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if (ca) {
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tmp.putBoolean(ca);
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// Only encode pathLen when ca == true
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if (pathLen >= 0) {
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tmp.putInteger(pathLen);
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}
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}
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out.write(DerValue.tag_Sequence, tmp);
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this.extensionValue = out.toByteArray();
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}
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/**
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* Default constructor for this object. The extension is marked
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* critical if the ca flag is true, false otherwise.
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*
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* @param ca true, if the subject of the Certificate is a CA.
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* @param len specifies the depth of the certification path.
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*/
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public BasicConstraintsExtension(boolean ca, int len) throws IOException {
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this(Boolean.valueOf(ca), ca, len);
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}
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/**
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* Constructor for this object with specified criticality.
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*
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* @param critical true, if the extension should be marked critical
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* @param ca true, if the subject of the Certificate is a CA.
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* @param len specifies the depth of the certification path.
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*/
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public BasicConstraintsExtension(Boolean critical, boolean ca, int len)
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throws IOException {
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this.ca = ca;
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this.pathLen = len;
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this.extensionId = PKIXExtensions.BasicConstraints_Id;
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this.critical = critical.booleanValue();
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encodeThis();
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}
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/**
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* Create the extension from the passed DER encoded value of the same.
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*
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* @param critical flag indicating if extension is critical or not
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* @param value an array containing the DER encoded bytes of the extension.
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* @exception ClassCastException if value is not an array of bytes
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* @exception IOException on error.
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*/
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public BasicConstraintsExtension(Boolean critical, Object value)
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throws IOException
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{
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this.extensionId = PKIXExtensions.BasicConstraints_Id;
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this.critical = critical.booleanValue();
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this.extensionValue = (byte[]) value;
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DerValue val = new DerValue(this.extensionValue);
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if (val.tag != DerValue.tag_Sequence) {
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throw new IOException("Invalid encoding of BasicConstraints");
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}
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if (val.data == null || val.data.available() == 0) {
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// non-CA cert ("cA" field is FALSE by default), return -1
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return;
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}
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DerValue opt = val.data.getDerValue();
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if (opt.tag != DerValue.tag_Boolean) {
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// non-CA cert ("cA" field is FALSE by default), return -1
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return;
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}
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this.ca = opt.getBoolean();
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if (val.data.available() == 0) {
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// From PKIX profile:
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// Where pathLenConstraint does not appear, there is no
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// limit to the allowed length of the certification path.
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this.pathLen = Integer.MAX_VALUE;
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return;
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}
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opt = val.data.getDerValue();
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if (opt.tag != DerValue.tag_Integer) {
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throw new IOException("Invalid encoding of BasicConstraints");
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}
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this.pathLen = opt.getInteger();
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/*
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* Activate this check once again after PKIX profiling
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* is a standard and this check no longer imposes an
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* interoperability barrier.
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* if (ca) {
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* if (!this.critical) {
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* throw new IOException("Criticality cannot be false for CA.");
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* }
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* }
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*/
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}
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/**
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* Return user readable form of extension.
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*/
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public String toString() {
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return super.toString() +
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"BasicConstraints:[\n CA:" + ca +
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"\n PathLen:" +
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((pathLen >= 0) ? String.valueOf(pathLen) : " undefined") +
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"\n]\n";
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}
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/**
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* Encode this extension value to the output stream.
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*
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* @param out the DerOutputStream to encode the extension to.
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*/
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public void encode(OutputStream out) throws IOException {
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DerOutputStream tmp = new DerOutputStream();
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if (extensionValue == null) {
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this.extensionId = PKIXExtensions.BasicConstraints_Id;
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if (ca) {
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critical = true;
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} else {
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critical = false;
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}
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encodeThis();
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}
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super.encode(tmp);
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out.write(tmp.toByteArray());
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}
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/**
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* Set the attribute value.
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*/
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public void set(String name, Object obj) throws IOException {
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if (name.equalsIgnoreCase(IS_CA)) {
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if (!(obj instanceof Boolean)) {
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throw new IOException("Attribute value should be of type Boolean.");
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}
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ca = ((Boolean)obj).booleanValue();
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} else if (name.equalsIgnoreCase(PATH_LEN)) {
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if (!(obj instanceof Integer)) {
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throw new IOException("Attribute value should be of type Integer.");
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}
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pathLen = ((Integer)obj).intValue();
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} else {
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throw new IOException("Attribute name not recognized by " +
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"CertAttrSet:BasicConstraints.");
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}
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encodeThis();
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}
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/**
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* Get the attribute value.
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*/
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public Object get(String name) throws IOException {
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if (name.equalsIgnoreCase(IS_CA)) {
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return (Boolean.valueOf(ca));
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} else if (name.equalsIgnoreCase(PATH_LEN)) {
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return (Integer.valueOf(pathLen));
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} else {
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throw new IOException("Attribute name not recognized by " +
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"CertAttrSet:BasicConstraints.");
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}
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}
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/**
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* Delete the attribute value.
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*/
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public void delete(String name) throws IOException {
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if (name.equalsIgnoreCase(IS_CA)) {
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ca = false;
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} else if (name.equalsIgnoreCase(PATH_LEN)) {
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pathLen = -1;
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} else {
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throw new IOException("Attribute name not recognized by " +
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"CertAttrSet:BasicConstraints.");
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}
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encodeThis();
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}
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/**
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* Return an enumeration of names of attributes existing within this
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* attribute.
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*/
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public Enumeration<String> getElements() {
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AttributeNameEnumeration elements = new AttributeNameEnumeration();
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elements.addElement(IS_CA);
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elements.addElement(PATH_LEN);
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return (elements.elements());
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}
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/**
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* Return the name of this attribute.
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*/
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public String getName() {
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return (NAME);
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}
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}
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