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| 1 | +/* | |
| 2 | + * Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package sun.security.x509; | |
| 27 | + | |
| 28 | +import java.io.IOException; | |
| 29 | +import java.io.InputStream; | |
| 30 | +import java.io.OutputStream; | |
| 31 | +import java.util.Enumeration; | |
| 32 | + | |
| 33 | +import sun.security.util.*; | |
| 34 | + | |
| 35 | +/** | |
| 36 | + * Represent the CRL Reason Flags. | |
| 37 | + * | |
| 38 | + * <p>This extension, if present, defines the identifies | |
| 39 | + * the reason for the certificate revocation. | |
| 40 | + * <p>The ASN.1 syntax for this is: | |
| 41 | + * <pre> | |
| 42 | + * ReasonFlags ::= BIT STRING { | |
| 43 | + * unused (0), | |
| 44 | + * keyCompromise (1), | |
| 45 | + * cACompromise (2), | |
| 46 | + * affiliationChanged (3), | |
| 47 | + * superseded (4), | |
| 48 | + * cessationOfOperation (5), | |
| 49 | + * certificateHold (6), | |
| 50 | + * privilegeWithdrawn (7), | |
| 51 | + * aACompromise (8) } | |
| 52 | + * </pre> | |
| 53 | + * | |
| 54 | + * @author Hemma Prafullchandra | |
| 55 | + */ | |
| 56 | +public class ReasonFlags { | |
| 57 | + | |
| 58 | + /** | |
| 59 | + * Reasons | |
| 60 | + */ | |
| 61 | + public static final String UNUSED = "unused"; | |
| 62 | + public static final String KEY_COMPROMISE = "key_compromise"; | |
| 63 | + public static final String CA_COMPROMISE = "ca_compromise"; | |
| 64 | + public static final String AFFILIATION_CHANGED = "affiliation_changed"; | |
| 65 | + public static final String SUPERSEDED = "superseded"; | |
| 66 | + public static final String CESSATION_OF_OPERATION | |
| 67 | + = "cessation_of_operation"; | |
| 68 | + public static final String CERTIFICATE_HOLD = "certificate_hold"; | |
| 69 | + public static final String PRIVILEGE_WITHDRAWN = "privilege_withdrawn"; | |
| 70 | + public static final String AA_COMPROMISE = "aa_compromise"; | |
| 71 | + | |
| 72 | + private final static String[] NAMES = { | |
| 73 | + UNUSED, | |
| 74 | + KEY_COMPROMISE, | |
| 75 | + CA_COMPROMISE, | |
| 76 | + AFFILIATION_CHANGED, | |
| 77 | + SUPERSEDED, | |
| 78 | + CESSATION_OF_OPERATION, | |
| 79 | + CERTIFICATE_HOLD, | |
| 80 | + PRIVILEGE_WITHDRAWN, | |
| 81 | + AA_COMPROMISE, | |
| 82 | + }; | |
| 83 | + | |
| 84 | + private static int name2Index(String name) throws IOException { | |
| 85 | + for( int i=0; i<NAMES.length; i++ ) { | |
| 86 | + if( NAMES[i].equalsIgnoreCase(name) ) { | |
| 87 | + return i; | |
| 88 | + } | |
| 89 | + } | |
| 90 | + throw new IOException("Name not recognized by ReasonFlags"); | |
| 91 | + } | |
| 92 | + | |
| 93 | + // Private data members | |
| 94 | + private boolean[] bitString; | |
| 95 | + | |
| 96 | + /** | |
| 97 | + * Check if bit is set. | |
| 98 | + * | |
| 99 | + * @param position the position in the bit string to check. | |
| 100 | + */ | |
| 101 | + private boolean isSet(int position) { | |
| 102 | + return bitString[position]; | |
| 103 | + } | |
| 104 | + | |
| 105 | + /** | |
| 106 | + * Set the bit at the specified position. | |
| 107 | + */ | |
| 108 | + private void set(int position, boolean val) { | |
| 109 | + // enlarge bitString if necessary | |
| 110 | + if (position >= bitString.length) { | |
| 111 | + boolean[] tmp = new boolean[position+1]; | |
| 112 | + System.arraycopy(bitString, 0, tmp, 0, bitString.length); | |
| 113 | + bitString = tmp; | |
| 114 | + } | |
| 115 | + bitString[position] = val; | |
| 116 | + } | |
| 117 | + | |
| 118 | + /** | |
| 119 | + * Create a ReasonFlags with the passed bit settings. | |
| 120 | + * | |
| 121 | + * @param reasons the bits to be set for the ReasonFlags. | |
| 122 | + */ | |
| 123 | + public ReasonFlags(byte[] reasons) { | |
| 124 | + bitString = new BitArray(reasons.length*8, reasons).toBooleanArray(); | |
| 125 | + } | |
| 126 | + | |
| 127 | + /** | |
| 128 | + * Create a ReasonFlags with the passed bit settings. | |
| 129 | + * | |
| 130 | + * @param reasons the bits to be set for the ReasonFlags. | |
| 131 | + */ | |
| 132 | + public ReasonFlags(boolean[] reasons) { | |
| 133 | + this.bitString = reasons; | |
| 134 | + } | |
| 135 | + | |
| 136 | + /** | |
| 137 | + * Create a ReasonFlags with the passed bit settings. | |
| 138 | + * | |
| 139 | + * @param reasons the bits to be set for the ReasonFlags. | |
| 140 | + */ | |
| 141 | + public ReasonFlags(BitArray reasons) { | |
| 142 | + this.bitString = reasons.toBooleanArray(); | |
| 143 | + } | |
| 144 | + | |
| 145 | + /** | |
| 146 | + * Create the object from the passed DER encoded value. | |
| 147 | + * | |
| 148 | + * @param in the DerInputStream to read the ReasonFlags from. | |
| 149 | + * @exception IOException on decoding errors. | |
| 150 | + */ | |
| 151 | + public ReasonFlags(DerInputStream in) throws IOException { | |
| 152 | + DerValue derVal = in.getDerValue(); | |
| 153 | + this.bitString = derVal.getUnalignedBitString(true).toBooleanArray(); | |
| 154 | + } | |
| 155 | + | |
| 156 | + /** | |
| 157 | + * Create the object from the passed DER encoded value. | |
| 158 | + * | |
| 159 | + * @param derVal the DerValue decoded from the stream. | |
| 160 | + * @exception IOException on decoding errors. | |
| 161 | + */ | |
| 162 | + public ReasonFlags(DerValue derVal) throws IOException { | |
| 163 | + this.bitString = derVal.getUnalignedBitString(true).toBooleanArray(); | |
| 164 | + } | |
| 165 | + | |
| 166 | + /** | |
| 167 | + * Returns the reason flags as a boolean array. | |
| 168 | + */ | |
| 169 | + public boolean[] getFlags() { | |
| 170 | + return bitString; | |
| 171 | + } | |
| 172 | + | |
| 173 | + /** | |
| 174 | + * Set the attribute value. | |
| 175 | + */ | |
| 176 | + public void set(String name, Object obj) throws IOException { | |
| 177 | + if (!(obj instanceof Boolean)) { | |
| 178 | + throw new IOException("Attribute must be of type Boolean."); | |
| 179 | + } | |
| 180 | + boolean val = ((Boolean)obj).booleanValue(); | |
| 181 | + set(name2Index(name), val); | |
| 182 | + } | |
| 183 | + | |
| 184 | + /** | |
| 185 | + * Get the attribute value. | |
| 186 | + */ | |
| 187 | + public Object get(String name) throws IOException { | |
| 188 | + return Boolean.valueOf(isSet(name2Index(name))); | |
| 189 | + } | |
| 190 | + | |
| 191 | + /** | |
| 192 | + * Delete the attribute value. | |
| 193 | + */ | |
| 194 | + public void delete(String name) throws IOException { | |
| 195 | + set(name, Boolean.FALSE); | |
| 196 | + } | |
| 197 | + | |
| 198 | + /** | |
| 199 | + * Returns a printable representation of the ReasonFlags. | |
| 200 | + */ | |
| 201 | + public String toString() { | |
| 202 | + String s = "Reason Flags [\n"; | |
| 203 | + | |
| 204 | + try { | |
| 205 | + if (isSet(0)) s += " Unused\n"; | |
| 206 | + if (isSet(1)) s += " Key Compromise\n"; | |
| 207 | + if (isSet(2)) s += " CA Compromise\n"; | |
| 208 | + if (isSet(3)) s += " Affiliation_Changed\n"; | |
| 209 | + if (isSet(4)) s += " Superseded\n"; | |
| 210 | + if (isSet(5)) s += " Cessation Of Operation\n"; | |
| 211 | + if (isSet(6)) s += " Certificate Hold\n"; | |
| 212 | + if (isSet(7)) s += " Privilege Withdrawn\n"; | |
| 213 | + if (isSet(8)) s += " AA Compromise\n"; | |
| 214 | + } catch (ArrayIndexOutOfBoundsException ex) {} | |
| 215 | + | |
| 216 | + s += "]\n"; | |
| 217 | + | |
| 218 | + return (s); | |
| 219 | + } | |
| 220 | + | |
| 221 | + /** | |
| 222 | + * Write the extension to the DerOutputStream. | |
| 223 | + * | |
| 224 | + * @param out the DerOutputStream to write the extension to. | |
| 225 | + * @exception IOException on encoding errors. | |
| 226 | + */ | |
| 227 | + public void encode(DerOutputStream out) throws IOException { | |
| 228 | + out.putTruncatedUnalignedBitString(new BitArray(this.bitString)); | |
| 229 | + } | |
| 230 | + | |
| 231 | + /** | |
| 232 | + * Return an enumeration of names of attributes existing within this | |
| 233 | + * attribute. | |
| 234 | + */ | |
| 235 | + public Enumeration<String> getElements () { | |
| 236 | + AttributeNameEnumeration elements = new AttributeNameEnumeration(); | |
| 237 | + for( int i=0; i<NAMES.length; i++ ) { | |
| 238 | + elements.addElement(NAMES[i]); | |
| 239 | + } | |
| 240 | + return (elements.elements()); | |
| 241 | + } | |
| 242 | +} | |