J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2005-2006 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package sun.security.x509; |
| 27 | |
| 28 | import java.io.IOException; |
| 29 | import java.io.OutputStream; |
| 30 | |
| 31 | import java.util.*; |
| 32 | |
| 33 | import sun.security.util.DerInputStream; |
| 34 | import sun.security.util.DerOutputStream; |
| 35 | import sun.security.util.DerValue; |
| 36 | |
| 37 | /** |
| 38 | * Represents the CRL Issuing Distribution Point Extension (OID = 2.5.29.28). |
| 39 | * |
| 40 | * <p> |
| 41 | * The issuing distribution point is a critical CRL extension that |
| 42 | * identifies the CRL distribution point and scope for a particular CRL, |
| 43 | * and it indicates whether the CRL covers revocation for end entity |
| 44 | * certificates only, CA certificates only, attribute certificates only, |
| 45 | * or a limited set of reason codes. |
| 46 | * |
| 47 | * <p> |
| 48 | * The extension is defined in Section 5.2.5 of |
| 49 | * <a href="http://www.ietf.org/rfc/rfc3280.txt">Internet X.509 PKI Certific |
| 50 | ate and Certificate Revocation List (CRL) Profile</a>. |
| 51 | * |
| 52 | * <p> |
| 53 | * Its ASN.1 definition is as follows: |
| 54 | * <pre> |
| 55 | * id-ce-issuingDistributionPoint OBJECT IDENTIFIER ::= { id-ce 28 } |
| 56 | * |
| 57 | * issuingDistributionPoint ::= SEQUENCE { |
| 58 | * distributionPoint [0] DistributionPointName OPTIONAL, |
| 59 | * onlyContainsUserCerts [1] BOOLEAN DEFAULT FALSE, |
| 60 | * onlyContainsCACerts [2] BOOLEAN DEFAULT FALSE, |
| 61 | * onlySomeReasons [3] ReasonFlags OPTIONAL, |
| 62 | * indirectCRL [4] BOOLEAN DEFAULT FALSE, |
| 63 | * onlyContainsAttributeCerts [5] BOOLEAN DEFAULT FALSE } |
| 64 | * </pre> |
| 65 | * |
| 66 | * @see DistributionPoint |
| 67 | * @since 1.6 |
| 68 | */ |
| 69 | public class IssuingDistributionPointExtension extends Extension |
| 70 | implements CertAttrSet<String> { |
| 71 | |
| 72 | /** |
| 73 | * Identifier for this attribute, to be used with the |
| 74 | * get, set, delete methods of Certificate, x509 type. |
| 75 | */ |
| 76 | public static final String IDENT = |
| 77 | "x509.info.extensions.IssuingDistributionPoint"; |
| 78 | |
| 79 | /** |
| 80 | * Attribute names. |
| 81 | */ |
| 82 | public static final String NAME = "IssuingDistributionPoint"; |
| 83 | public static final String POINT = "point"; |
| 84 | public static final String REASONS = "reasons"; |
| 85 | public static final String ONLY_USER_CERTS = "only_user_certs"; |
| 86 | public static final String ONLY_CA_CERTS = "only_ca_certs"; |
| 87 | public static final String ONLY_ATTRIBUTE_CERTS = "only_attribute_certs"; |
| 88 | public static final String INDIRECT_CRL = "indirect_crl"; |
| 89 | |
| 90 | /* |
| 91 | * The distribution point name for the CRL. |
| 92 | */ |
| 93 | private DistributionPointName distributionPoint = null; |
| 94 | |
| 95 | /* |
| 96 | * The scope settings for the CRL. |
| 97 | */ |
| 98 | private ReasonFlags revocationReasons = null; |
| 99 | private boolean hasOnlyUserCerts = false; |
| 100 | private boolean hasOnlyCACerts = false; |
| 101 | private boolean hasOnlyAttributeCerts = false; |
| 102 | private boolean isIndirectCRL = false; |
| 103 | |
| 104 | /* |
| 105 | * ASN.1 context specific tag values |
| 106 | */ |
| 107 | private static final byte TAG_DISTRIBUTION_POINT = 0; |
| 108 | private static final byte TAG_ONLY_USER_CERTS = 1; |
| 109 | private static final byte TAG_ONLY_CA_CERTS = 2; |
| 110 | private static final byte TAG_ONLY_SOME_REASONS = 3; |
| 111 | private static final byte TAG_INDIRECT_CRL = 4; |
| 112 | private static final byte TAG_ONLY_ATTRIBUTE_CERTS = 5; |
| 113 | |
| 114 | /** |
| 115 | * Creates a critical IssuingDistributionPointExtension. |
| 116 | * |
| 117 | * @param distributionPoint the name of the distribution point, or null for |
| 118 | * none. |
| 119 | * @param revocationReasons the revocation reasons associated with the |
| 120 | * distribution point, or null for none. |
| 121 | * @param hasOnlyUserCerts if <code>true</code> then scope of the CRL |
| 122 | * includes only user certificates. |
| 123 | * @param hasOnlyCACerts if <code>true</code> then scope of the CRL |
| 124 | * includes only CA certificates. |
| 125 | * @param hasOnlyAttributeCerts if <code>true</code> then scope of the CRL |
| 126 | * includes only attribute certificates. |
| 127 | * @param isIndirectCRL if <code>true</code> then the scope of the CRL |
| 128 | * includes certificates issued by authorities other than the CRL |
| 129 | * issuer. The responsible authority is indicated by a certificate |
| 130 | * issuer CRL entry extension. |
| 131 | * @throws IllegalArgumentException if more than one of |
| 132 | * <code>hasOnlyUserCerts</code>, <code>hasOnlyCACerts</code>, |
| 133 | * <code>hasOnlyAttributeCerts</code> is set to <code>true</code>. |
| 134 | * @throws IOException on encoding error. |
| 135 | */ |
| 136 | public IssuingDistributionPointExtension( |
| 137 | DistributionPointName distributionPoint, ReasonFlags revocationReasons, |
| 138 | boolean hasOnlyUserCerts, boolean hasOnlyCACerts, |
| 139 | boolean hasOnlyAttributeCerts, boolean isIndirectCRL) |
| 140 | throws IOException { |
| 141 | |
| 142 | if ((hasOnlyUserCerts && (hasOnlyCACerts || hasOnlyAttributeCerts)) || |
| 143 | (hasOnlyCACerts && (hasOnlyUserCerts || hasOnlyAttributeCerts)) || |
| 144 | (hasOnlyAttributeCerts && (hasOnlyUserCerts || hasOnlyCACerts))) { |
| 145 | throw new IllegalArgumentException( |
| 146 | "Only one of hasOnlyUserCerts, hasOnlyCACerts, " + |
| 147 | "hasOnlyAttributeCerts may be set to true"); |
| 148 | } |
| 149 | this.extensionId = PKIXExtensions.IssuingDistributionPoint_Id; |
| 150 | this.critical = true; |
| 151 | this.distributionPoint = distributionPoint; |
| 152 | this.revocationReasons = revocationReasons; |
| 153 | this.hasOnlyUserCerts = hasOnlyUserCerts; |
| 154 | this.hasOnlyCACerts = hasOnlyCACerts; |
| 155 | this.hasOnlyAttributeCerts = hasOnlyAttributeCerts; |
| 156 | this.isIndirectCRL = isIndirectCRL; |
| 157 | encodeThis(); |
| 158 | } |
| 159 | |
| 160 | /** |
| 161 | * Creates a critical IssuingDistributionPointExtension from its |
| 162 | * DER-encoding. |
| 163 | * |
| 164 | * @param critical true if the extension is to be treated as critical. |
| 165 | * @param value the DER-encoded value. It must be a <code>byte[]</code>. |
| 166 | * @exception IOException on decoding error. |
| 167 | */ |
| 168 | public IssuingDistributionPointExtension(Boolean critical, Object value) |
| 169 | throws IOException { |
| 170 | this.extensionId = PKIXExtensions.IssuingDistributionPoint_Id; |
| 171 | this.critical = critical.booleanValue(); |
| 172 | |
| 173 | if (!(value instanceof byte[])) { |
| 174 | throw new IOException("Illegal argument type"); |
| 175 | } |
| 176 | |
| 177 | extensionValue = (byte[])value; |
| 178 | DerValue val = new DerValue(extensionValue); |
| 179 | if (val.tag != DerValue.tag_Sequence) { |
| 180 | throw new IOException("Invalid encoding for " + |
| 181 | "IssuingDistributionPointExtension."); |
| 182 | } |
| 183 | |
| 184 | // All the elements in issuingDistributionPoint are optional |
| 185 | if ((val.data == null) || (val.data.available() == 0)) { |
| 186 | return; |
| 187 | } |
| 188 | |
| 189 | DerInputStream in = val.data; |
| 190 | while (in != null && in.available() != 0) { |
| 191 | DerValue opt = in.getDerValue(); |
| 192 | |
| 193 | if (opt.isContextSpecific(TAG_DISTRIBUTION_POINT) && |
| 194 | opt.isConstructed()) { |
| 195 | distributionPoint = |
| 196 | new DistributionPointName(opt.data.getDerValue()); |
| 197 | } else if (opt.isContextSpecific(TAG_ONLY_USER_CERTS) && |
| 198 | !opt.isConstructed()) { |
| 199 | opt.resetTag(DerValue.tag_Boolean); |
| 200 | hasOnlyUserCerts = opt.getBoolean(); |
| 201 | } else if (opt.isContextSpecific(TAG_ONLY_CA_CERTS) && |
| 202 | !opt.isConstructed()) { |
| 203 | opt.resetTag(DerValue.tag_Boolean); |
| 204 | hasOnlyCACerts = opt.getBoolean(); |
| 205 | } else if (opt.isContextSpecific(TAG_ONLY_SOME_REASONS) && |
| 206 | !opt.isConstructed()) { |
| 207 | revocationReasons = new ReasonFlags(opt); // expects tag implicit |
| 208 | } else if (opt.isContextSpecific(TAG_INDIRECT_CRL) && |
| 209 | !opt.isConstructed()) { |
| 210 | opt.resetTag(DerValue.tag_Boolean); |
| 211 | isIndirectCRL = opt.getBoolean(); |
| 212 | } else if (opt.isContextSpecific(TAG_ONLY_ATTRIBUTE_CERTS) && |
| 213 | !opt.isConstructed()) { |
| 214 | opt.resetTag(DerValue.tag_Boolean); |
| 215 | hasOnlyAttributeCerts = opt.getBoolean(); |
| 216 | } else { |
| 217 | throw new IOException |
| 218 | ("Invalid encoding of IssuingDistributionPoint"); |
| 219 | } |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | /** |
| 224 | * Returns the name of this attribute. |
| 225 | */ |
| 226 | public String getName() { |
| 227 | return NAME; |
| 228 | } |
| 229 | |
| 230 | /** |
| 231 | * Encodes the issuing distribution point extension and writes it to the |
| 232 | * DerOutputStream. |
| 233 | * |
| 234 | * @param out the output stream. |
| 235 | * @exception IOException on encoding error. |
| 236 | */ |
| 237 | public void encode(OutputStream out) throws IOException { |
| 238 | DerOutputStream tmp = new DerOutputStream(); |
| 239 | if (this.extensionValue == null) { |
| 240 | this.extensionId = PKIXExtensions.IssuingDistributionPoint_Id; |
| 241 | this.critical = false; |
| 242 | encodeThis(); |
| 243 | } |
| 244 | super.encode(tmp); |
| 245 | out.write(tmp.toByteArray()); |
| 246 | } |
| 247 | |
| 248 | /** |
| 249 | * Sets the attribute value. |
| 250 | */ |
| 251 | public void set(String name, Object obj) throws IOException { |
| 252 | if (name.equalsIgnoreCase(POINT)) { |
| 253 | if (!(obj instanceof DistributionPointName)) { |
| 254 | throw new IOException( |
| 255 | "Attribute value should be of type DistributionPointName."); |
| 256 | } |
| 257 | distributionPoint = (DistributionPointName)obj; |
| 258 | |
| 259 | } else if (name.equalsIgnoreCase(REASONS)) { |
| 260 | if (!(obj instanceof ReasonFlags)) { |
| 261 | throw new IOException( |
| 262 | "Attribute value should be of type ReasonFlags."); |
| 263 | } |
| 264 | |
| 265 | } else if (name.equalsIgnoreCase(INDIRECT_CRL)) { |
| 266 | if (!(obj instanceof Boolean)) { |
| 267 | throw new IOException( |
| 268 | "Attribute value should be of type Boolean."); |
| 269 | } |
| 270 | isIndirectCRL = ((Boolean)obj).booleanValue(); |
| 271 | |
| 272 | } else if (name.equalsIgnoreCase(ONLY_USER_CERTS)) { |
| 273 | if (!(obj instanceof Boolean)) { |
| 274 | throw new IOException( |
| 275 | "Attribute value should be of type Boolean."); |
| 276 | } |
| 277 | hasOnlyUserCerts = ((Boolean)obj).booleanValue(); |
| 278 | |
| 279 | } else if (name.equalsIgnoreCase(ONLY_CA_CERTS)) { |
| 280 | if (!(obj instanceof Boolean)) { |
| 281 | throw new IOException( |
| 282 | "Attribute value should be of type Boolean."); |
| 283 | } |
| 284 | hasOnlyCACerts = ((Boolean)obj).booleanValue(); |
| 285 | |
| 286 | } else if (name.equalsIgnoreCase(ONLY_ATTRIBUTE_CERTS)) { |
| 287 | if (!(obj instanceof Boolean)) { |
| 288 | throw new IOException( |
| 289 | "Attribute value should be of type Boolean."); |
| 290 | } |
| 291 | hasOnlyAttributeCerts = ((Boolean)obj).booleanValue(); |
| 292 | |
| 293 | |
| 294 | } else { |
| 295 | throw new IOException("Attribute name [" + name + |
| 296 | "] not recognized by " + |
| 297 | "CertAttrSet:IssuingDistributionPointExtension."); |
| 298 | } |
| 299 | encodeThis(); |
| 300 | } |
| 301 | |
| 302 | /** |
| 303 | * Gets the attribute value. |
| 304 | */ |
| 305 | public Object get(String name) throws IOException { |
| 306 | if (name.equalsIgnoreCase(POINT)) { |
| 307 | return distributionPoint; |
| 308 | |
| 309 | } else if (name.equalsIgnoreCase(INDIRECT_CRL)) { |
| 310 | return Boolean.valueOf(isIndirectCRL); |
| 311 | |
| 312 | } else if (name.equalsIgnoreCase(REASONS)) { |
| 313 | return revocationReasons; |
| 314 | |
| 315 | } else if (name.equalsIgnoreCase(ONLY_USER_CERTS)) { |
| 316 | return Boolean.valueOf(hasOnlyUserCerts); |
| 317 | |
| 318 | } else if (name.equalsIgnoreCase(ONLY_CA_CERTS)) { |
| 319 | return Boolean.valueOf(hasOnlyCACerts); |
| 320 | |
| 321 | } else if (name.equalsIgnoreCase(ONLY_ATTRIBUTE_CERTS)) { |
| 322 | return Boolean.valueOf(hasOnlyAttributeCerts); |
| 323 | |
| 324 | } else { |
| 325 | throw new IOException("Attribute name [" + name + |
| 326 | "] not recognized by " + |
| 327 | "CertAttrSet:IssuingDistributionPointExtension."); |
| 328 | } |
| 329 | } |
| 330 | |
| 331 | /** |
| 332 | * Deletes the attribute value. |
| 333 | */ |
| 334 | public void delete(String name) throws IOException { |
| 335 | if (name.equalsIgnoreCase(POINT)) { |
| 336 | distributionPoint = null; |
| 337 | |
| 338 | } else if (name.equalsIgnoreCase(INDIRECT_CRL)) { |
| 339 | isIndirectCRL = false; |
| 340 | |
| 341 | } else if (name.equalsIgnoreCase(REASONS)) { |
| 342 | revocationReasons = null; |
| 343 | |
| 344 | } else if (name.equalsIgnoreCase(ONLY_USER_CERTS)) { |
| 345 | hasOnlyUserCerts = false; |
| 346 | |
| 347 | } else if (name.equalsIgnoreCase(ONLY_CA_CERTS)) { |
| 348 | hasOnlyCACerts = false; |
| 349 | |
| 350 | } else if (name.equalsIgnoreCase(ONLY_ATTRIBUTE_CERTS)) { |
| 351 | hasOnlyAttributeCerts = false; |
| 352 | |
| 353 | } else { |
| 354 | throw new IOException("Attribute name [" + name + |
| 355 | "] not recognized by " + |
| 356 | "CertAttrSet:IssuingDistributionPointExtension."); |
| 357 | } |
| 358 | encodeThis(); |
| 359 | } |
| 360 | |
| 361 | /** |
| 362 | * Returns an enumeration of names of attributes existing within this |
| 363 | * attribute. |
| 364 | */ |
| 365 | public Enumeration<String> getElements() { |
| 366 | AttributeNameEnumeration elements = new AttributeNameEnumeration(); |
| 367 | elements.addElement(POINT); |
| 368 | elements.addElement(REASONS); |
| 369 | elements.addElement(ONLY_USER_CERTS); |
| 370 | elements.addElement(ONLY_CA_CERTS); |
| 371 | elements.addElement(ONLY_ATTRIBUTE_CERTS); |
| 372 | elements.addElement(INDIRECT_CRL); |
| 373 | return elements.elements(); |
| 374 | } |
| 375 | |
| 376 | // Encodes this extension value |
| 377 | private void encodeThis() throws IOException { |
| 378 | |
| 379 | if (distributionPoint == null && |
| 380 | revocationReasons == null && |
| 381 | !hasOnlyUserCerts && |
| 382 | !hasOnlyCACerts && |
| 383 | !hasOnlyAttributeCerts && |
| 384 | !isIndirectCRL) { |
| 385 | |
| 386 | this.extensionValue = null; |
| 387 | return; |
| 388 | |
| 389 | } |
| 390 | |
| 391 | DerOutputStream tagged = new DerOutputStream(); |
| 392 | |
| 393 | if (distributionPoint != null) { |
| 394 | DerOutputStream tmp = new DerOutputStream(); |
| 395 | distributionPoint.encode(tmp); |
| 396 | tagged.writeImplicit(DerValue.createTag(DerValue.TAG_CONTEXT, true, |
| 397 | TAG_DISTRIBUTION_POINT), tmp); |
| 398 | } |
| 399 | |
| 400 | if (hasOnlyUserCerts) { |
| 401 | DerOutputStream tmp = new DerOutputStream(); |
| 402 | tmp.putBoolean(hasOnlyUserCerts); |
| 403 | tagged.writeImplicit(DerValue.createTag(DerValue.TAG_CONTEXT, false, |
| 404 | TAG_ONLY_USER_CERTS), tmp); |
| 405 | } |
| 406 | |
| 407 | if (hasOnlyCACerts) { |
| 408 | DerOutputStream tmp = new DerOutputStream(); |
| 409 | tmp.putBoolean(hasOnlyCACerts); |
| 410 | tagged.writeImplicit(DerValue.createTag(DerValue.TAG_CONTEXT, false, |
| 411 | TAG_ONLY_CA_CERTS), tmp); |
| 412 | } |
| 413 | |
| 414 | if (revocationReasons != null) { |
| 415 | DerOutputStream tmp = new DerOutputStream(); |
| 416 | revocationReasons.encode(tmp); |
| 417 | tagged.writeImplicit(DerValue.createTag(DerValue.TAG_CONTEXT, false, |
| 418 | TAG_ONLY_SOME_REASONS), tmp); |
| 419 | } |
| 420 | |
| 421 | if (isIndirectCRL) { |
| 422 | DerOutputStream tmp = new DerOutputStream(); |
| 423 | tmp.putBoolean(isIndirectCRL); |
| 424 | tagged.writeImplicit(DerValue.createTag(DerValue.TAG_CONTEXT, false, |
| 425 | TAG_INDIRECT_CRL), tmp); |
| 426 | } |
| 427 | |
| 428 | if (hasOnlyAttributeCerts) { |
| 429 | DerOutputStream tmp = new DerOutputStream(); |
| 430 | tmp.putBoolean(hasOnlyAttributeCerts); |
| 431 | tagged.writeImplicit(DerValue.createTag(DerValue.TAG_CONTEXT, false, |
| 432 | TAG_ONLY_ATTRIBUTE_CERTS), tmp); |
| 433 | } |
| 434 | |
| 435 | DerOutputStream seq = new DerOutputStream(); |
| 436 | seq.write(DerValue.tag_Sequence, tagged); |
| 437 | this.extensionValue = seq.toByteArray(); |
| 438 | } |
| 439 | |
| 440 | /** |
| 441 | * Returns the extension as user readable string. |
| 442 | */ |
| 443 | public String toString() { |
| 444 | |
| 445 | StringBuilder sb = new StringBuilder(super.toString()); |
| 446 | sb.append("IssuingDistributionPoint [\n "); |
| 447 | |
| 448 | if (distributionPoint != null) { |
| 449 | sb.append(distributionPoint); |
| 450 | } |
| 451 | |
| 452 | if (revocationReasons != null) { |
| 453 | sb.append(revocationReasons); |
| 454 | } |
| 455 | |
| 456 | sb.append((hasOnlyUserCerts) |
| 457 | ? (" Only contains user certs: true") |
| 458 | : (" Only contains user certs: false")).append("\n"); |
| 459 | |
| 460 | sb.append((hasOnlyCACerts) |
| 461 | ? (" Only contains CA certs: true") |
| 462 | : (" Only contains CA certs: false")).append("\n"); |
| 463 | |
| 464 | sb.append((hasOnlyAttributeCerts) |
| 465 | ? (" Only contains attribute certs: true") |
| 466 | : (" Only contains attribute certs: false")).append("\n"); |
| 467 | |
| 468 | sb.append((isIndirectCRL) |
| 469 | ? (" Indirect CRL: true") |
| 470 | : (" Indirect CRL: false")).append("\n"); |
| 471 | |
| 472 | sb.append("]\n"); |
| 473 | |
| 474 | return sb.toString(); |
| 475 | } |
| 476 | |
| 477 | } |