| /* |
| * Copyright (c) 1998, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.security.x509; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.util.*; |
| |
| import sun.security.util.*; |
| |
| /** |
| * Represents Netscape Certificate Type Extension. |
| * The details are defined |
| * <a href=http://www.netscape.com/eng/security/comm4-cert-exts.html> |
| * here </a>. |
| * |
| * <p>This extension, if present, defines both the purpose |
| * (e.g., encipherment, signature, certificate signing) and the application |
| * (e.g., SSL, S/Mime or Object Signing of the key contained in the |
| * certificate. This extension has been superseded by IETF PKIX extensions |
| * but is provided here for compatibility reasons. |
| * |
| * @author Hemma Prafullchandra |
| * @see Extension |
| * @see CertAttrSet |
| */ |
| |
| public class NetscapeCertTypeExtension extends Extension |
| implements CertAttrSet<String> { |
| |
| /** |
| * Identifier for this attribute, to be used with the |
| * get, set, delete methods of Certificate, x509 type. |
| */ |
| public static final String IDENT = "x509.info.extensions.NetscapeCertType"; |
| |
| /** |
| * Attribute names. |
| */ |
| public static final String NAME = "NetscapeCertType"; |
| public static final String SSL_CLIENT = "ssl_client"; |
| public static final String SSL_SERVER = "ssl_server"; |
| public static final String S_MIME = "s_mime"; |
| public static final String OBJECT_SIGNING = "object_signing"; |
| public static final String SSL_CA = "ssl_ca"; |
| public static final String S_MIME_CA = "s_mime_ca"; |
| public static final String OBJECT_SIGNING_CA = "object_signing_ca"; |
| |
| private static final int[] CertType_data = { 2, 16, 840, 1, 113730, 1, 1 }; |
| |
| /** |
| * Object identifier for the Netscape-Cert-Type extension. |
| */ |
| public static ObjectIdentifier NetscapeCertType_Id; |
| |
| static { |
| try { |
| NetscapeCertType_Id = new ObjectIdentifier(CertType_data); |
| } catch (IOException ioe) { |
| // should not happen |
| } |
| } |
| |
| private boolean[] bitString; |
| |
| private static class MapEntry { |
| String mName; |
| int mPosition; |
| |
| MapEntry(String name, int position) { |
| mName = name; |
| mPosition = position; |
| } |
| } |
| |
| private static MapEntry[] mMapData = { |
| new MapEntry(SSL_CLIENT, 0), |
| new MapEntry(SSL_SERVER, 1), |
| new MapEntry(S_MIME, 2), |
| new MapEntry(OBJECT_SIGNING, 3), |
| // note that bit 4 is reserved |
| new MapEntry(SSL_CA, 5), |
| new MapEntry(S_MIME_CA, 6), |
| new MapEntry(OBJECT_SIGNING_CA, 7), |
| }; |
| |
| private static final Vector<String> mAttributeNames = new Vector<String>(); |
| static { |
| for (MapEntry entry : mMapData) { |
| mAttributeNames.add(entry.mName); |
| } |
| } |
| |
| private static int getPosition(String name) throws IOException { |
| for (int i = 0; i < mMapData.length; i++) { |
| if (name.equalsIgnoreCase(mMapData[i].mName)) |
| return mMapData[i].mPosition; |
| } |
| throw new IOException("Attribute name [" + name |
| + "] not recognized by CertAttrSet:NetscapeCertType."); |
| } |
| |
| // Encode this extension value |
| private void encodeThis() throws IOException { |
| DerOutputStream os = new DerOutputStream(); |
| os.putTruncatedUnalignedBitString(new BitArray(this.bitString)); |
| this.extensionValue = os.toByteArray(); |
| } |
| |
| /** |
| * Check if bit is set. |
| * |
| * @param position the position in the bit string to check. |
| */ |
| private boolean isSet(int position) { |
| return (position < bitString.length) && |
| bitString[position]; |
| } |
| |
| /** |
| * Set the bit at the specified position. |
| */ |
| private void set(int position, boolean val) { |
| // enlarge bitString if necessary |
| if (position >= bitString.length) { |
| boolean[] tmp = new boolean[position+1]; |
| System.arraycopy(bitString, 0, tmp, 0, bitString.length); |
| bitString = tmp; |
| } |
| bitString[position] = val; |
| } |
| |
| /** |
| * Create a NetscapeCertTypeExtension with the passed bit settings. |
| * The criticality is set to true. |
| * |
| * @param bitString the bits to be set for the extension. |
| */ |
| public NetscapeCertTypeExtension(byte[] bitString) throws IOException { |
| this.bitString = |
| new BitArray(bitString.length*8, bitString).toBooleanArray(); |
| this.extensionId = NetscapeCertType_Id; |
| this.critical = true; |
| encodeThis(); |
| } |
| |
| /** |
| * Create a NetscapeCertTypeExtension with the passed bit settings. |
| * The criticality is set to true. |
| * |
| * @param bitString the bits to be set for the extension. |
| */ |
| public NetscapeCertTypeExtension(boolean[] bitString) throws IOException { |
| this.bitString = bitString; |
| this.extensionId = NetscapeCertType_Id; |
| this.critical = true; |
| encodeThis(); |
| } |
| |
| /** |
| * Create the extension from the passed DER encoded value of the same. |
| * |
| * @param critical true if the extension is to be treated as critical. |
| * @param value an array of DER encoded bytes of the actual value. |
| * @exception ClassCastException if value is not an array of bytes |
| * @exception IOException on error. |
| */ |
| public NetscapeCertTypeExtension(Boolean critical, Object value) |
| throws IOException { |
| this.extensionId = NetscapeCertType_Id; |
| this.critical = critical.booleanValue(); |
| this.extensionValue = (byte[]) value; |
| DerValue val = new DerValue(this.extensionValue); |
| this.bitString = val.getUnalignedBitString().toBooleanArray(); |
| } |
| |
| /** |
| * Create a default key usage. |
| */ |
| public NetscapeCertTypeExtension() { |
| extensionId = NetscapeCertType_Id; |
| critical = true; |
| bitString = new boolean[0]; |
| } |
| |
| /** |
| * Set the attribute value. |
| */ |
| public void set(String name, Object obj) throws IOException { |
| if (!(obj instanceof Boolean)) |
| throw new IOException("Attribute must be of type Boolean."); |
| |
| boolean val = ((Boolean)obj).booleanValue(); |
| set(getPosition(name), val); |
| encodeThis(); |
| } |
| |
| /** |
| * Get the attribute value. |
| */ |
| public Boolean get(String name) throws IOException { |
| return Boolean.valueOf(isSet(getPosition(name))); |
| } |
| |
| /** |
| * Delete the attribute value. |
| */ |
| public void delete(String name) throws IOException { |
| set(getPosition(name), false); |
| encodeThis(); |
| } |
| |
| /** |
| * Returns a printable representation of the NetscapeCertType. |
| */ |
| public String toString() { |
| StringBuilder sb = new StringBuilder(); |
| sb.append(super.toString()); |
| sb.append("NetscapeCertType [\n"); |
| |
| if (isSet(0)) { |
| sb.append(" SSL client\n"); |
| } |
| if (isSet(1)) { |
| sb.append(" SSL server\n"); |
| } |
| if (isSet(2)) { |
| sb.append(" S/MIME\n"); |
| } |
| if (isSet(3)) { |
| sb.append(" Object Signing\n"); |
| } |
| if (isSet(5)) { |
| sb.append(" SSL CA\n"); |
| } |
| if (isSet(6)) { |
| sb.append(" S/MIME CA\n"); |
| } |
| if (isSet(7)) { |
| sb.append(" Object Signing CA"); |
| } |
| |
| sb.append("]\n"); |
| return sb.toString(); |
| } |
| |
| /** |
| * Write the extension to the DerOutputStream. |
| * |
| * @param out the DerOutputStream to write the extension to. |
| * @exception IOException on encoding errors. |
| */ |
| public void encode(OutputStream out) throws IOException { |
| DerOutputStream tmp = new DerOutputStream(); |
| |
| if (this.extensionValue == null) { |
| this.extensionId = NetscapeCertType_Id; |
| this.critical = true; |
| encodeThis(); |
| } |
| super.encode(tmp); |
| out.write(tmp.toByteArray()); |
| } |
| |
| /** |
| * Return an enumeration of names of attributes existing within this |
| * attribute. |
| */ |
| public Enumeration<String> getElements() { |
| return mAttributeNames.elements(); |
| } |
| |
| /** |
| * Return the name of this attribute. |
| */ |
| public String getName() { |
| return (NAME); |
| } |
| |
| /** |
| * Get a boolean array representing the bits of this extension, |
| * as it maps to the KeyUsage extension. |
| * @return the bit values of this extension mapped to the bit values |
| * of the KeyUsage extension as an array of booleans. |
| */ |
| public boolean[] getKeyUsageMappedBits() { |
| KeyUsageExtension keyUsage = new KeyUsageExtension(); |
| Boolean val = Boolean.TRUE; |
| |
| try { |
| if (isSet(getPosition(SSL_CLIENT)) || |
| isSet(getPosition(S_MIME)) || |
| isSet(getPosition(OBJECT_SIGNING))) |
| keyUsage.set(KeyUsageExtension.DIGITAL_SIGNATURE, val); |
| |
| if (isSet(getPosition(SSL_SERVER))) |
| keyUsage.set(KeyUsageExtension.KEY_ENCIPHERMENT, val); |
| |
| if (isSet(getPosition(SSL_CA)) || |
| isSet(getPosition(S_MIME_CA)) || |
| isSet(getPosition(OBJECT_SIGNING_CA))) |
| keyUsage.set(KeyUsageExtension.KEY_CERTSIGN, val); |
| } catch (IOException e) { } |
| return keyUsage.getBits(); |
| } |
| } |