GNU Classpath (0.20) | |
Frames | No Frames |
1: /* CertStore -- stores and retrieves certificates. 2: Copyright (C) 2003, 2004 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: 39: package java.security.cert; 40: 41: import gnu.java.security.Engine; 42: 43: import java.security.InvalidAlgorithmParameterException; 44: import java.security.NoSuchAlgorithmException; 45: import java.security.NoSuchProviderException; 46: import java.security.PrivilegedAction; 47: import java.security.Provider; 48: import java.security.Security; 49: import java.util.Collection; 50: 51: /** 52: * A CertStore is a read-only repository for certificates and 53: * certificate revocation lists. 54: * 55: * @since JDK 1.4 56: */ 57: public class CertStore 58: { 59: 60: // Constants and fields. 61: // ------------------------------------------------------------------------ 62: 63: /** Service name for CertStore. */ 64: private static final String CERT_STORE = "CertStore"; 65: 66: /** The underlying implementation. */ 67: private CertStoreSpi storeSpi; 68: 69: /** This implementation's provider. */ 70: private Provider provider; 71: 72: /** The name of this key store type. */ 73: private String type; 74: 75: /** The parameters used to initialize this instance, if any. */ 76: private CertStoreParameters params; 77: 78: // Constructor. 79: // ------------------------------------------------------------------------ 80: 81: /** 82: * Create a new CertStore. 83: * 84: * @param storeSpi The underlying implementation. 85: * @param provider The provider of this implementation. 86: * @param type The type of CertStore this class represents. 87: * @param params The parameters used to initialize this instance, if any. 88: */ 89: protected CertStore(CertStoreSpi storeSpi, Provider provider, String type, 90: CertStoreParameters params) 91: { 92: this.storeSpi = storeSpi; 93: this.provider = provider; 94: this.type = type; 95: this.params = params; 96: } 97: 98: // Class methods. 99: // ------------------------------------------------------------------------ 100: 101: /** 102: * Returns the default certificate store type. 103: * 104: * <p>This value can be set at run-time via the security property 105: * "certstore.type"; if not specified than the default type will be 106: * "LDAP". 107: * 108: * @return The default CertStore type. 109: */ 110: public static final synchronized String getDefaultType() 111: { 112: String type = null; 113: type = (String) java.security.AccessController.doPrivileged( 114: new PrivilegedAction() { 115: public Object run() { 116: return Security.getProperty("certstore.type"); 117: } 118: } 119: ); 120: if (type == null) 121: type = "LDAP"; 122: return type; 123: } 124: 125: /** 126: * Get an instance of the given certificate store from the first 127: * installed provider. 128: * 129: * @param type The type of CertStore to create. 130: * @param params The parameters to initialize this cert store with. 131: * @return The new instance. 132: * @throws InvalidAlgorithmParameterException If the instance rejects 133: * the specified parameters. 134: * @throws NoSuchAlgorithmException If no installed provider 135: * implements the specified CertStore. 136: * @throws IllegalArgumentException If <i>provider</i> is null. 137: */ 138: public static CertStore getInstance(String type, CertStoreParameters params) 139: throws InvalidAlgorithmParameterException, NoSuchAlgorithmException 140: { 141: Provider[] p = Security.getProviders(); 142: for (int i = 0; i < p.length; i++) 143: { 144: try 145: { 146: return getInstance(type, params, p[i]); 147: } 148: catch (NoSuchAlgorithmException e) 149: { 150: // Ignored. 151: } 152: } 153: 154: throw new NoSuchAlgorithmException(type); 155: } 156: 157: /** 158: * Get an instance of the given certificate store from the named 159: * provider. 160: * 161: * @param type The type of CertStore to create. 162: * @param params The parameters to initialize this cert store with. 163: * @param provider The name of the provider from which to get the 164: * implementation. 165: * @return The new instance. 166: * @throws InvalidAlgorithmParameterException If the instance rejects 167: * the specified parameters. 168: * @throws NoSuchAlgorithmException If the specified provider does not 169: * implement the specified CertStore. 170: * @throws NoSuchProviderException If no provider named 171: * <i>provider</i> is installed. 172: * @throws IllegalArgumentException If <i>provider</i> is null. 173: */ 174: public static CertStore getInstance(String type, CertStoreParameters params, 175: String provider) 176: throws InvalidAlgorithmParameterException, NoSuchAlgorithmException, 177: NoSuchProviderException 178: { 179: Provider p = Security.getProvider(provider); 180: if (p == null) 181: throw new NoSuchProviderException(provider); 182: return getInstance(type, params, p); 183: } 184: 185: /** 186: * Get an instance of the given certificate store from the given 187: * provider. 188: * 189: * @param type The type of CertStore to create. 190: * @param params The parameters to initialize this cert store with. 191: * @param provider The provider from which to get the implementation. 192: * @return The new instance. 193: * @throws InvalidAlgorithmParameterException If the instance rejects 194: * the specified parameters. 195: * @throws NoSuchAlgorithmException If the specified provider does not 196: * implement the specified CertStore. 197: * @throws IllegalArgumentException If <i>provider</i> is null. 198: */ 199: public static CertStore getInstance(String type, CertStoreParameters params, 200: Provider provider) 201: throws InvalidAlgorithmParameterException, NoSuchAlgorithmException 202: { 203: if (provider == null) 204: throw new IllegalArgumentException("null provider"); 205: 206: try 207: { 208: return new CertStore((CertStoreSpi) Engine.getInstance(CERT_STORE, 209: type, provider, new Object[] { params }), provider, type, params); 210: } 211: catch (ClassCastException cce) 212: { 213: throw new NoSuchAlgorithmException(type); 214: } 215: catch (java.lang.reflect.InvocationTargetException ite) 216: { 217: Throwable cause = ite.getCause(); 218: if (cause instanceof InvalidAlgorithmParameterException) 219: throw (InvalidAlgorithmParameterException) cause; 220: else 221: throw new NoSuchAlgorithmException(type); 222: } 223: } 224: 225: // Instance methods. 226: // ------------------------------------------------------------------------ 227: 228: /** 229: * Return the type of certificate store this instance represents. 230: * 231: * @return The CertStore type. 232: */ 233: public final String getType() 234: { 235: return type; 236: } 237: 238: /** 239: * Return the provider of this implementation. 240: * 241: * @return The provider. 242: */ 243: public final Provider getProvider() 244: { 245: return provider; 246: } 247: 248: /** 249: * Get the parameters this instance was created with, if any. The 250: * parameters will be cloned before they are returned. 251: * 252: * @return The parameters, or null. 253: */ 254: public final CertStoreParameters getCertStoreParameters() 255: { 256: return params != null ? (CertStoreParameters) params.clone() : null; 257: } 258: 259: /** 260: * Get a collection of certificates from this CertStore, optionally 261: * filtered by the specified CertSelector. The Collection returned may 262: * be empty, but will never be null. 263: * 264: * <p>Implementations may not allow a null argument, even if no 265: * filtering is desired. 266: * 267: * @param selector The certificate selector. 268: * @return The collection of certificates. 269: * @throws CertStoreException If the certificates cannot be retrieved. 270: */ 271: public final Collection getCertificates(CertSelector selector) 272: throws CertStoreException 273: { 274: return storeSpi.engineGetCertificates(selector); 275: } 276: 277: /** 278: * Get a collection of certificate revocation lists from this CertStore, 279: * optionally filtered by the specified CRLSelector. The Collection 280: * returned may be empty, but will never be null. 281: * 282: * <p>Implementations may not allow a null argument, even if no 283: * filtering is desired. 284: * 285: * @param selector The certificate selector. 286: * @return The collection of certificate revocation lists. 287: * @throws CertStoreException If the CRLs cannot be retrieved. 288: */ 289: public final Collection getCRLs(CRLSelector selector) 290: throws CertStoreException 291: { 292: return storeSpi.engineGetCRLs(selector); 293: } 294: }
GNU Classpath (0.20) |