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Diffstat (limited to 'libjava/javax/net/ssl/TrustManagerFactory.java')
-rw-r--r-- | libjava/javax/net/ssl/TrustManagerFactory.java | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/libjava/javax/net/ssl/TrustManagerFactory.java b/libjava/javax/net/ssl/TrustManagerFactory.java new file mode 100644 index 0000000..84059c8 --- /dev/null +++ b/libjava/javax/net/ssl/TrustManagerFactory.java @@ -0,0 +1,279 @@ +/* TrustManagerFactory.java -- factory for trust 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 gnu.java.security.Engine; + +/** + * A factory for creating trust manager objects. + */ +public class TrustManagerFactory +{ + + // Constants and fields. + // ------------------------------------------------------------------------- + + /** The service name for trust manager factories. */ + private static final String TRUST_MANAGER_FACTORY = "TrustManagerFactory"; + + /** The system default trust manager algorithm. */ + private static final String DEFAULT_ALGORITHM = "JessieX509"; + + /** The underlying engine class. */ + private final TrustManagerFactorySpi tmfSpi; + + /** The provider of the engine class. */ + private final Provider provider; + + /** The name of this trust manager algorithm. */ + private final String algorithm; + + // Constructor. + // ------------------------------------------------------------------------- + + /** + * Creates a new trust manager factory. + * + * @param tmfSpi The underlying engine class. + * @param provider The provider of the engine class. + * @param algorithm The trust manager algorithm name. + */ + protected TrustManagerFactory(TrustManagerFactorySpi tmfSpi, + Provider provider, String algorithm) + { + this.tmfSpi = tmfSpi; + this.provider = provider; + this.algorithm = algorithm; + } + + // Class methods. + // ------------------------------------------------------------------------- + + /** + * Returns an instance of a trust manager factory for the given algorithm + * from the first provider that implements it. + * + * @param algorithm The name of the algorithm to get. + * @return The instance of the trust manager factory. + * @throws NoSuchAlgorithmException If no provider implements the given + * algorithm. + */ + public static final TrustManagerFactory 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); + } + + /** + * Returns an instance of a trust manager factory for the given algorithm + * from the named provider. + * + * @param algorithm The name of the algorithm to get. + * @param provider The name of the provider to get the instance from. + * @return The instance of the trust manager factory. + * @throws NoSuchAlgorithmException If the provider does not implement the + * given algorithm. + * @throws NoSuchProviderException If there is no such named provider. + * @throws IllegalArgumentException If the provider argument is null. + */ + public static final TrustManagerFactory getInstance(String algorithm, + String provider) + throws NoSuchAlgorithmException, NoSuchProviderException + { + if (provider == null) + { + throw new IllegalArgumentException(); + } + Provider p = Security.getProvider(provider); + if (p == null) + { + throw new NoSuchProviderException(provider); + } + return getInstance(algorithm, p); + } + + /** + * Returns an instance of a trust manager factory for the given algorithm + * from the specified provider. + * + * @param algorithm The name of the algorithm to get. + * @param provider The provider to get the instance from. + * @return The instance of the trust manager factory. + * @throws NoSuchAlgorithmException If the provider does not implement the + * given algorithm. + * @throws IllegalArgumentException If the provider argument is null. + */ + public static final TrustManagerFactory getInstance(String algorithm, + Provider provider) + throws NoSuchAlgorithmException + { + if (provider == null) + { + throw new IllegalArgumentException(); + } + try + { + return new TrustManagerFactory((TrustManagerFactorySpi) + Engine.getInstance(TRUST_MANAGER_FACTORY, algorithm, provider), + provider, algorithm); + } + catch (InvocationTargetException ite) + { + throw new NoSuchAlgorithmException(algorithm); + } + catch (ClassCastException cce) + { + throw new NoSuchAlgorithmException(algorithm); + } + } + + /** + * Returns the default algorithm for trust manager factories. The value + * returned is either the value of the security property + * "ssl.TrustManagerFactory.algorithm" if it is set, or the value "JessieX509" + * if not. + * + * @return The default algorithm name. + * @see Security.getProperty(java.lang.String) + */ + public static final String getDefaultAlgorithm() + { + String alg = null; + try + { + alg = (String) AccessController.doPrivileged( + new PrivilegedAction() + { + public Object run() + { + return Security.getProperty("ssl.TrustManagerFactory.algorithm"); + } + } + ); + } + catch (SecurityException se) + { + } + if (alg == null) + alg = DEFAULT_ALGORITHM; + return alg; + } + + // Instance methods. + // ------------------------------------------------------------------------- + + /** + * Returns the name of this trust manager algorithm. + * + * @return The algorithm name. + */ + public final String getAlgorithm() + { + return algorithm; + } + + /** + * Returns the provider of the underlying implementation. + * + * @return The provider. + */ + public final Provider getProvider() + { + return provider; + } + + /** + * Returns the trust managers created by this factory. + * + * @return The trust managers. + */ + public final TrustManager[] getTrustManagers() + { + return tmfSpi.engineGetTrustManagers(); + } + + /** + * Initialize this instance with some algorithm-specific parameters. + * + * @param params The parameters. + * @throws InvalidAlgorithmParameterException If the supplied parameters + * are inappropriate for this instance. + */ + public final void init(ManagerFactoryParameters params) + throws InvalidAlgorithmParameterException + { + tmfSpi.engineInit(params); + } + + /** + * Initialize this instance with a key store. The key store may be null, + * in which case a default will be used. + * + * @param store The key store. + * @throws KeyStoreException If there is a problem reading from the + * key store. + */ + public final void init(KeyStore store) throws KeyStoreException + { + tmfSpi.engineInit(store); + } +} |