diff options
Diffstat (limited to 'libjava/javax/net/ssl/KeyManagerFactory.java')
| -rw-r--r-- | libjava/javax/net/ssl/KeyManagerFactory.java | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/libjava/javax/net/ssl/KeyManagerFactory.java b/libjava/javax/net/ssl/KeyManagerFactory.java new file mode 100644 index 00000000000..a166f60aa43 --- /dev/null +++ b/libjava/javax/net/ssl/KeyManagerFactory.java @@ -0,0 +1,281 @@ +/* KeyManagerFactory.java -- factory for key managers. + Copyright (C) 2004 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA +02111-1307 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package javax.net.ssl; + +import java.lang.reflect.InvocationTargetException; + +import java.security.AccessController; +import java.security.InvalidAlgorithmParameterException; +import java.security.KeyStore; +import java.security.KeyStoreException; +import java.security.NoSuchAlgorithmException; +import java.security.NoSuchProviderException; +import java.security.PrivilegedAction; +import java.security.Provider; +import java.security.Security; +import java.security.UnrecoverableKeyException; + +import gnu.java.security.Engine; + +/** + * A class that creates key manager implementations based on a + * requested algorithm. + * + * @author Casey Marshall (rsdio@metastatic.org) + */ +public class KeyManagerFactory +{ + + // Constants and fields. + // ------------------------------------------------------------------ + + /** The service name for key manager factories. */ + private static final String KEY_MANAGER_FACTORY = "KeyManagerFactory"; + + /** The system default trust manager algorithm. */ + private static final String DEFAULT_ALGORITHM = "JessieX509"; + + /** The underlying engine. */ + private final KeyManagerFactorySpi kmfSpi; + + /** The provider of this implementation. */ + private final Provider provider; + + /** The name of this algorithm. */ + private final String algorithm; + + // Constructor. + // ------------------------------------------------------------------ + + /** + * Create a new key manager factory. + * + * @param kmfSpi The underlying engine. + * @param provider The engine's provider. + * @param algorithm The name of this algorithm. + */ + protected KeyManagerFactory(KeyManagerFactorySpi kmfSpi, + Provider provider, String algorithm) + { + this.kmfSpi = kmfSpi; + this.provider = provider; + this.algorithm = algorithm; + } + + // Class methods. + // ------------------------------------------------------------------ + + /** + * Get the default algorithm name. This value may be specified at + * run-time via the security property + * "ssl.KeyManagerFactory.algorithm". If this property is + * not specified, this method returns "JessieX509". + * + * @return The default key manager factory algorithm's name. + */ + public static final String getDefaultAlgorithm() + { + String alg = null; + try + { + alg = (String) AccessController.doPrivileged( + new PrivilegedAction() + { + public Object run() + { + return Security.getProperty("ssl.KeyManagerFactory.algorithm"); + } + } + ); + } + catch (SecurityException se) + { + } + if (alg == null) + alg = DEFAULT_ALGORITHM; + return alg; + } + + /** + * Get an instance of the named key manager factory, from the first + * provider that implements it. + * + * @param algorithm The type of key manager factory to get. + * @return An appropriate implementation of that algoritm. + * @throws NoSuchAlgorithmException If no provider implements the + * requested algorithm. + */ + public static final KeyManagerFactory getInstance(String algorithm) + throws NoSuchAlgorithmException + { + Provider[] provs = Security.getProviders(); + for (int i = 0; i < provs.length; i++) + { + try + { + return getInstance(algorithm, provs[i]); + } + catch (NoSuchAlgorithmException ignore) + { + } + } + throw new NoSuchAlgorithmException(algorithm); + } + + /** + * Get an instance of the named key manager factory, from the named + * provider. + * + * @param algorithm The type of key manager factory to get. + * @param provider The name of the provider to get the + * implementation from. + * @return An appropriate implementation of that algorithm. + * @throws NoSuchAlgorithmException If the provider does not + * implement the requested algorithm. + * @throws NoSuchProviderException If the named provider does not + * exist. + */ + public static final KeyManagerFactory getInstance(String algorithm, String provider) + throws NoSuchAlgorithmException, NoSuchProviderException + { + if (provider == null) + throw new IllegalArgumentException("provider is null"); + Provider p = Security.getProvider(provider); + if (p == null) + throw new NoSuchProviderException(provider); + return getInstance(algorithm, p); + } + + /** + * Get an instance of the named key manager factory, from the given + * provider. + * + * @param algorithm The type of key manager factory to get. + * @param provider The provider to get the implementation from. + * @return An appropriate implementation of that algorithm. + * @throws NoSuchAlgorithmException If the provider does not + * implement the requested algorithm. + * @throws IllegalArgumentException If <i>provider</i> is null. + */ + public static final KeyManagerFactory getInstance(String algorithm, Provider provider) + throws NoSuchAlgorithmException + { + if (provider == null) + throw new IllegalArgumentException("provider is null"); + try + { + return new KeyManagerFactory((KeyManagerFactorySpi) + Engine.getInstance(KEY_MANAGER_FACTORY, algorithm, provider), + provider, algorithm); + } + catch (InvocationTargetException ite) + { + throw new NoSuchAlgorithmException(algorithm); + } + catch (ClassCastException cce) + { + throw new NoSuchAlgorithmException(algorithm); + } + } + + // Instance methods. + // ------------------------------------------------------------------- + + /** + * Returns the name of this key manager factory algorithm. + * + * @return The name of this key manager factory algorithm. + */ + public final String getAlgorithm() + { + return algorithm; + } + + /** + * Get an array of key managers appropriate for this algorithm, with + * the most preferred manager first. + * + * @return The array of key managers. + */ + public final KeyManager[] getKeyManagers() + { + return kmfSpi.engineGetKeyManagers(); + } + + /** + * Returns the provider of this implementation. + * + * @return The provider of this implementation. + */ + public final Provider getProvider() + { + return provider; + } + + /** + * Initialize this instance with an implementation-dependent + * parameter object. + * + * @param params The parameters to initialize with. + * @throws InvalidAlgorithmParameterException If the specified + * parameters are inappropriate. + */ + public final void init(ManagerFactoryParameters params) + throws InvalidAlgorithmParameterException + { + kmfSpi.engineInit(params); + } + + /** + * Initialize this instance with a key store and a password for + * private key entries. + * + * @param store The key store to read. + * @param passwd The password protecting private keys in the store. + * @throws KeyStoreException If an error occurs reading the keys. + * @throws NoSuchAlgorithmException If an algorithm (such as a + * certificate algorithm) is not available. + * @throws UnrecoverableKeyException If the password is incorrect. + */ + public final void init(KeyStore store, char[] passwd) + throws KeyStoreException, NoSuchAlgorithmException, UnrecoverableKeyException + { + kmfSpi.engineInit(store, passwd); + } +} |