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| 1 | +/* | |
| 2 | + * Copyright (c) 2000, 2011, 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 java.security.cert; | |
| 27 | + | |
| 28 | +import java.security.AccessController; | |
| 29 | +import java.security.InvalidAlgorithmParameterException; | |
| 30 | +import java.security.NoSuchAlgorithmException; | |
| 31 | +import java.security.NoSuchProviderException; | |
| 32 | +import java.security.PrivilegedAction; | |
| 33 | +import java.security.Provider; | |
| 34 | +import java.security.Security; | |
| 35 | +import java.util.Collection; | |
| 36 | + | |
| 37 | +import sun.security.jca.*; | |
| 38 | +import sun.security.jca.GetInstance.Instance; | |
| 39 | + | |
| 40 | +/** | |
| 41 | + * A class for retrieving <code>Certificate</code>s and <code>CRL</code>s | |
| 42 | + * from a repository. | |
| 43 | + * <p> | |
| 44 | + * This class uses a provider-based architecture. | |
| 45 | + * To create a <code>CertStore</code>, call one of the static | |
| 46 | + * <code>getInstance</code> methods, passing in the type of | |
| 47 | + * <code>CertStore</code> desired, any applicable initialization parameters | |
| 48 | + * and optionally the name of the provider desired. | |
| 49 | + * <p> | |
| 50 | + * Once the <code>CertStore</code> has been created, it can be used to | |
| 51 | + * retrieve <code>Certificate</code>s and <code>CRL</code>s by calling its | |
| 52 | + * {@link #getCertificates(CertSelector selector) getCertificates} and | |
| 53 | + * {@link #getCRLs(CRLSelector selector) getCRLs} methods. | |
| 54 | + * <p> | |
| 55 | + * Unlike a {@link java.security.KeyStore KeyStore}, which provides access | |
| 56 | + * to a cache of private keys and trusted certificates, a | |
| 57 | + * <code>CertStore</code> is designed to provide access to a potentially | |
| 58 | + * vast repository of untrusted certificates and CRLs. For example, an LDAP | |
| 59 | + * implementation of <code>CertStore</code> provides access to certificates | |
| 60 | + * and CRLs stored in one or more directories using the LDAP protocol and the | |
| 61 | + * schema as defined in the RFC service attribute. | |
| 62 | + * | |
| 63 | + * <p> Every implementation of the Java platform is required to support the | |
| 64 | + * following standard <code>CertStore</code> type: | |
| 65 | + * <ul> | |
| 66 | + * <li><tt>Collection</tt></li> | |
| 67 | + * </ul> | |
| 68 | + * This type is described in the <a href= | |
| 69 | + * "{@docRoot}/../technotes/guides/security/StandardNames.html#CertStore"> | |
| 70 | + * CertStore section</a> of the | |
| 71 | + * Java Cryptography Architecture Standard Algorithm Name Documentation. | |
| 72 | + * Consult the release documentation for your implementation to see if any | |
| 73 | + * other types are supported. | |
| 74 | + * | |
| 75 | + * <p> | |
| 76 | + * <b>Concurrent Access</b> | |
| 77 | + * <p> | |
| 78 | + * All public methods of <code>CertStore</code> objects must be thread-safe. | |
| 79 | + * That is, multiple threads may concurrently invoke these methods on a | |
| 80 | + * single <code>CertStore</code> object (or more than one) with no | |
| 81 | + * ill effects. This allows a <code>CertPathBuilder</code> to search for a | |
| 82 | + * CRL while simultaneously searching for further certificates, for instance. | |
| 83 | + * <p> | |
| 84 | + * The static methods of this class are also guaranteed to be thread-safe. | |
| 85 | + * Multiple threads may concurrently invoke the static methods defined in | |
| 86 | + * this class with no ill effects. | |
| 87 | + * | |
| 88 | + * @since 1.4 | |
| 89 | + * @author Sean Mullan, Steve Hanna | |
| 90 | + */ | |
| 91 | +public class CertStore { | |
| 92 | + /* | |
| 93 | + * Constant to lookup in the Security properties file to determine | |
| 94 | + * the default certstore type. In the Security properties file, the | |
| 95 | + * default certstore type is given as: | |
| 96 | + * <pre> | |
| 97 | + * certstore.type=LDAP | |
| 98 | + * </pre> | |
| 99 | + */ | |
| 100 | + private static final String CERTSTORE_TYPE = "certstore.type"; | |
| 101 | + private CertStoreSpi storeSpi; | |
| 102 | + private Provider provider; | |
| 103 | + private String type; | |
| 104 | + private CertStoreParameters params; | |
| 105 | + | |
| 106 | + /** | |
| 107 | + * Creates a <code>CertStore</code> object of the given type, and | |
| 108 | + * encapsulates the given provider implementation (SPI object) in it. | |
| 109 | + * | |
| 110 | + * @param storeSpi the provider implementation | |
| 111 | + * @param provider the provider | |
| 112 | + * @param type the type | |
| 113 | + * @param params the initialization parameters (may be <code>null</code>) | |
| 114 | + */ | |
| 115 | + protected CertStore(CertStoreSpi storeSpi, Provider provider, | |
| 116 | + String type, CertStoreParameters params) { | |
| 117 | + this.storeSpi = storeSpi; | |
| 118 | + this.provider = provider; | |
| 119 | + this.type = type; | |
| 120 | + if (params != null) | |
| 121 | + this.params = (CertStoreParameters) params.clone(); | |
| 122 | + } | |
| 123 | + | |
| 124 | + /** | |
| 125 | + * Returns a <code>Collection</code> of <code>Certificate</code>s that | |
| 126 | + * match the specified selector. If no <code>Certificate</code>s | |
| 127 | + * match the selector, an empty <code>Collection</code> will be returned. | |
| 128 | + * <p> | |
| 129 | + * For some <code>CertStore</code> types, the resulting | |
| 130 | + * <code>Collection</code> may not contain <b>all</b> of the | |
| 131 | + * <code>Certificate</code>s that match the selector. For instance, | |
| 132 | + * an LDAP <code>CertStore</code> may not search all entries in the | |
| 133 | + * directory. Instead, it may just search entries that are likely to | |
| 134 | + * contain the <code>Certificate</code>s it is looking for. | |
| 135 | + * <p> | |
| 136 | + * Some <code>CertStore</code> implementations (especially LDAP | |
| 137 | + * <code>CertStore</code>s) may throw a <code>CertStoreException</code> | |
| 138 | + * unless a non-null <code>CertSelector</code> is provided that | |
| 139 | + * includes specific criteria that can be used to find the certificates. | |
| 140 | + * Issuer and/or subject names are especially useful criteria. | |
| 141 | + * | |
| 142 | + * @param selector A <code>CertSelector</code> used to select which | |
| 143 | + * <code>Certificate</code>s should be returned. Specify <code>null</code> | |
| 144 | + * to return all <code>Certificate</code>s (if supported). | |
| 145 | + * @return A <code>Collection</code> of <code>Certificate</code>s that | |
| 146 | + * match the specified selector (never <code>null</code>) | |
| 147 | + * @throws CertStoreException if an exception occurs | |
| 148 | + */ | |
| 149 | + public final Collection<? extends Certificate> getCertificates | |
| 150 | + (CertSelector selector) throws CertStoreException { | |
| 151 | + return storeSpi.engineGetCertificates(selector); | |
| 152 | + } | |
| 153 | + | |
| 154 | + /** | |
| 155 | + * Returns a <code>Collection</code> of <code>CRL</code>s that | |
| 156 | + * match the specified selector. If no <code>CRL</code>s | |
| 157 | + * match the selector, an empty <code>Collection</code> will be returned. | |
| 158 | + * <p> | |
| 159 | + * For some <code>CertStore</code> types, the resulting | |
| 160 | + * <code>Collection</code> may not contain <b>all</b> of the | |
| 161 | + * <code>CRL</code>s that match the selector. For instance, | |
| 162 | + * an LDAP <code>CertStore</code> may not search all entries in the | |
| 163 | + * directory. Instead, it may just search entries that are likely to | |
| 164 | + * contain the <code>CRL</code>s it is looking for. | |
| 165 | + * <p> | |
| 166 | + * Some <code>CertStore</code> implementations (especially LDAP | |
| 167 | + * <code>CertStore</code>s) may throw a <code>CertStoreException</code> | |
| 168 | + * unless a non-null <code>CRLSelector</code> is provided that | |
| 169 | + * includes specific criteria that can be used to find the CRLs. | |
| 170 | + * Issuer names and/or the certificate to be checked are especially useful. | |
| 171 | + * | |
| 172 | + * @param selector A <code>CRLSelector</code> used to select which | |
| 173 | + * <code>CRL</code>s should be returned. Specify <code>null</code> | |
| 174 | + * to return all <code>CRL</code>s (if supported). | |
| 175 | + * @return A <code>Collection</code> of <code>CRL</code>s that | |
| 176 | + * match the specified selector (never <code>null</code>) | |
| 177 | + * @throws CertStoreException if an exception occurs | |
| 178 | + */ | |
| 179 | + public final Collection<? extends CRL> getCRLs(CRLSelector selector) | |
| 180 | + throws CertStoreException { | |
| 181 | + return storeSpi.engineGetCRLs(selector); | |
| 182 | + } | |
| 183 | + | |
| 184 | + /** | |
| 185 | + * Returns a <code>CertStore</code> object that implements the specified | |
| 186 | + * <code>CertStore</code> type and is initialized with the specified | |
| 187 | + * parameters. | |
| 188 | + * | |
| 189 | + * <p> This method traverses the list of registered security Providers, | |
| 190 | + * starting with the most preferred Provider. | |
| 191 | + * A new CertStore object encapsulating the | |
| 192 | + * CertStoreSpi implementation from the first | |
| 193 | + * Provider that supports the specified type is returned. | |
| 194 | + * | |
| 195 | + * <p> Note that the list of registered providers may be retrieved via | |
| 196 | + * the {@link Security#getProviders() Security.getProviders()} method. | |
| 197 | + * | |
| 198 | + * <p>The <code>CertStore</code> that is returned is initialized with the | |
| 199 | + * specified <code>CertStoreParameters</code>. The type of parameters | |
| 200 | + * needed may vary between different types of <code>CertStore</code>s. | |
| 201 | + * Note that the specified <code>CertStoreParameters</code> object is | |
| 202 | + * cloned. | |
| 203 | + * | |
| 204 | + * @param type the name of the requested <code>CertStore</code> type. | |
| 205 | + * See the CertStore section in the <a href= | |
| 206 | + * "{@docRoot}/../technotes/guides/security/StandardNames.html#CertStore"> | |
| 207 | + * Java Cryptography Architecture Standard Algorithm Name Documentation</a> | |
| 208 | + * for information about standard types. | |
| 209 | + * | |
| 210 | + * @param params the initialization parameters (may be <code>null</code>). | |
| 211 | + * | |
| 212 | + * @return a <code>CertStore</code> object that implements the specified | |
| 213 | + * <code>CertStore</code> type. | |
| 214 | + * | |
| 215 | + * @throws NoSuchAlgorithmException if no Provider supports a | |
| 216 | + * CertStoreSpi implementation for the specified type. | |
| 217 | + * | |
| 218 | + * @throws InvalidAlgorithmParameterException if the specified | |
| 219 | + * initialization parameters are inappropriate for this | |
| 220 | + * <code>CertStore</code>. | |
| 221 | + * | |
| 222 | + * @see java.security.Provider | |
| 223 | + */ | |
| 224 | + public static CertStore getInstance(String type, CertStoreParameters params) | |
| 225 | + throws InvalidAlgorithmParameterException, | |
| 226 | + NoSuchAlgorithmException { | |
| 227 | + try { | |
| 228 | + Instance instance = GetInstance.getInstance("CertStore", | |
| 229 | + CertStoreSpi.class, type, params); | |
| 230 | + return new CertStore((CertStoreSpi)instance.impl, | |
| 231 | + instance.provider, type, params); | |
| 232 | + } catch (NoSuchAlgorithmException e) { | |
| 233 | + return handleException(e); | |
| 234 | + } | |
| 235 | + } | |
| 236 | + | |
| 237 | + private static CertStore handleException(NoSuchAlgorithmException e) | |
| 238 | + throws NoSuchAlgorithmException, InvalidAlgorithmParameterException { | |
| 239 | + Throwable cause = e.getCause(); | |
| 240 | + if (cause instanceof InvalidAlgorithmParameterException) { | |
| 241 | + throw (InvalidAlgorithmParameterException)cause; | |
| 242 | + } | |
| 243 | + throw e; | |
| 244 | + } | |
| 245 | + | |
| 246 | + /** | |
| 247 | + * Returns a <code>CertStore</code> object that implements the specified | |
| 248 | + * <code>CertStore</code> type. | |
| 249 | + * | |
| 250 | + * <p> A new CertStore object encapsulating the | |
| 251 | + * CertStoreSpi implementation from the specified provider | |
| 252 | + * is returned. The specified provider must be registered | |
| 253 | + * in the security provider list. | |
| 254 | + * | |
| 255 | + * <p> Note that the list of registered providers may be retrieved via | |
| 256 | + * the {@link Security#getProviders() Security.getProviders()} method. | |
| 257 | + * | |
| 258 | + * <p>The <code>CertStore</code> that is returned is initialized with the | |
| 259 | + * specified <code>CertStoreParameters</code>. The type of parameters | |
| 260 | + * needed may vary between different types of <code>CertStore</code>s. | |
| 261 | + * Note that the specified <code>CertStoreParameters</code> object is | |
| 262 | + * cloned. | |
| 263 | + * | |
| 264 | + * @param type the requested <code>CertStore</code> type. | |
| 265 | + * See the CertStore section in the <a href= | |
| 266 | + * "{@docRoot}/../technotes/guides/security/StandardNames.html#CertStore"> | |
| 267 | + * Java Cryptography Architecture Standard Algorithm Name Documentation</a> | |
| 268 | + * for information about standard types. | |
| 269 | + * | |
| 270 | + * @param params the initialization parameters (may be <code>null</code>). | |
| 271 | + * | |
| 272 | + * @param provider the name of the provider. | |
| 273 | + * | |
| 274 | + * @return a <code>CertStore</code> object that implements the | |
| 275 | + * specified type. | |
| 276 | + * | |
| 277 | + * @throws NoSuchAlgorithmException if a CertStoreSpi | |
| 278 | + * implementation for the specified type is not | |
| 279 | + * available from the specified provider. | |
| 280 | + * | |
| 281 | + * @throws InvalidAlgorithmParameterException if the specified | |
| 282 | + * initialization parameters are inappropriate for this | |
| 283 | + * <code>CertStore</code>. | |
| 284 | + * | |
| 285 | + * @throws NoSuchProviderException if the specified provider is not | |
| 286 | + * registered in the security provider list. | |
| 287 | + * | |
| 288 | + * @exception IllegalArgumentException if the <code>provider</code> is | |
| 289 | + * null or empty. | |
| 290 | + * | |
| 291 | + * @see java.security.Provider | |
| 292 | + */ | |
| 293 | + public static CertStore getInstance(String type, | |
| 294 | + CertStoreParameters params, String provider) | |
| 295 | + throws InvalidAlgorithmParameterException, | |
| 296 | + NoSuchAlgorithmException, NoSuchProviderException { | |
| 297 | + try { | |
| 298 | + Instance instance = GetInstance.getInstance("CertStore", | |
| 299 | + CertStoreSpi.class, type, params, provider); | |
| 300 | + return new CertStore((CertStoreSpi)instance.impl, | |
| 301 | + instance.provider, type, params); | |
| 302 | + } catch (NoSuchAlgorithmException e) { | |
| 303 | + return handleException(e); | |
| 304 | + } | |
| 305 | + } | |
| 306 | + | |
| 307 | + /** | |
| 308 | + * Returns a <code>CertStore</code> object that implements the specified | |
| 309 | + * <code>CertStore</code> type. | |
| 310 | + * | |
| 311 | + * <p> A new CertStore object encapsulating the | |
| 312 | + * CertStoreSpi implementation from the specified Provider | |
| 313 | + * object is returned. Note that the specified Provider object | |
| 314 | + * does not have to be registered in the provider list. | |
| 315 | + * | |
| 316 | + * <p>The <code>CertStore</code> that is returned is initialized with the | |
| 317 | + * specified <code>CertStoreParameters</code>. The type of parameters | |
| 318 | + * needed may vary between different types of <code>CertStore</code>s. | |
| 319 | + * Note that the specified <code>CertStoreParameters</code> object is | |
| 320 | + * cloned. | |
| 321 | + * | |
| 322 | + * @param type the requested <code>CertStore</code> type. | |
| 323 | + * See the CertStore section in the <a href= | |
| 324 | + * "{@docRoot}/../technotes/guides/security/StandardNames.html#CertStore"> | |
| 325 | + * Java Cryptography Architecture Standard Algorithm Name Documentation</a> | |
| 326 | + * for information about standard types. | |
| 327 | + * | |
| 328 | + * @param params the initialization parameters (may be <code>null</code>). | |
| 329 | + * | |
| 330 | + * @param provider the provider. | |
| 331 | + * | |
| 332 | + * @return a <code>CertStore</code> object that implements the | |
| 333 | + * specified type. | |
| 334 | + * | |
| 335 | + * @exception NoSuchAlgorithmException if a CertStoreSpi | |
| 336 | + * implementation for the specified type is not available | |
| 337 | + * from the specified Provider object. | |
| 338 | + * | |
| 339 | + * @throws InvalidAlgorithmParameterException if the specified | |
| 340 | + * initialization parameters are inappropriate for this | |
| 341 | + * <code>CertStore</code> | |
| 342 | + * | |
| 343 | + * @exception IllegalArgumentException if the <code>provider</code> is | |
| 344 | + * null. | |
| 345 | + * | |
| 346 | + * @see java.security.Provider | |
| 347 | + */ | |
| 348 | + public static CertStore getInstance(String type, CertStoreParameters params, | |
| 349 | + Provider provider) throws NoSuchAlgorithmException, | |
| 350 | + InvalidAlgorithmParameterException { | |
| 351 | + try { | |
| 352 | + Instance instance = GetInstance.getInstance("CertStore", | |
| 353 | + CertStoreSpi.class, type, params, provider); | |
| 354 | + return new CertStore((CertStoreSpi)instance.impl, | |
| 355 | + instance.provider, type, params); | |
| 356 | + } catch (NoSuchAlgorithmException e) { | |
| 357 | + return handleException(e); | |
| 358 | + } | |
| 359 | + } | |
| 360 | + | |
| 361 | + /** | |
| 362 | + * Returns the parameters used to initialize this <code>CertStore</code>. | |
| 363 | + * Note that the <code>CertStoreParameters</code> object is cloned before | |
| 364 | + * it is returned. | |
| 365 | + * | |
| 366 | + * @return the parameters used to initialize this <code>CertStore</code> | |
| 367 | + * (may be <code>null</code>) | |
| 368 | + */ | |
| 369 | + public final CertStoreParameters getCertStoreParameters() { | |
| 370 | + return (params == null ? null : (CertStoreParameters) params.clone()); | |
| 371 | + } | |
| 372 | + | |
| 373 | + /** | |
| 374 | + * Returns the type of this <code>CertStore</code>. | |
| 375 | + * | |
| 376 | + * @return the type of this <code>CertStore</code> | |
| 377 | + */ | |
| 378 | + public final String getType() { | |
| 379 | + return this.type; | |
| 380 | + } | |
| 381 | + | |
| 382 | + /** | |
| 383 | + * Returns the provider of this <code>CertStore</code>. | |
| 384 | + * | |
| 385 | + * @return the provider of this <code>CertStore</code> | |
| 386 | + */ | |
| 387 | + public final Provider getProvider() { | |
| 388 | + return this.provider; | |
| 389 | + } | |
| 390 | + | |
| 391 | + /** | |
| 392 | + * Returns the default <code>CertStore</code> type as specified in the | |
| 393 | + * Java security properties file, or the string "LDAP" if no | |
| 394 | + * such property exists. The Java security properties file is located in | |
| 395 | + * the file named <JAVA_HOME>/lib/security/java.security. | |
| 396 | + * <JAVA_HOME> refers to the value of the java.home system property, | |
| 397 | + * and specifies the directory where the JRE is installed. | |
| 398 | + * | |
| 399 | + * <p>The default <code>CertStore</code> type can be used by applications | |
| 400 | + * that do not want to use a hard-coded type when calling one of the | |
| 401 | + * <code>getInstance</code> methods, and want to provide a default | |
| 402 | + * <code>CertStore</code> type in case a user does not specify its own. | |
| 403 | + * | |
| 404 | + * <p>The default <code>CertStore</code> type can be changed by setting | |
| 405 | + * the value of the "certstore.type" security property (in the Java | |
| 406 | + * security properties file) to the desired type. | |
| 407 | + * | |
| 408 | + * @return the default <code>CertStore</code> type as specified in the | |
| 409 | + * Java security properties file, or the string "LDAP" | |
| 410 | + * if no such property exists. | |
| 411 | + */ | |
| 412 | + public final static String getDefaultType() { | |
| 413 | + String cstype; | |
| 414 | + cstype = AccessController.doPrivileged(new PrivilegedAction<String>() { | |
| 415 | + public String run() { | |
| 416 | + return Security.getProperty(CERTSTORE_TYPE); | |
| 417 | + } | |
| 418 | + }); | |
| 419 | + if (cstype == null) { | |
| 420 | + cstype = "LDAP"; | |
| 421 | + } | |
| 422 | + return cstype; | |
| 423 | + } | |
| 424 | +} | |