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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| 47 | * superseded (4), | ||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 | } | ||