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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/javax/net/ssl/TrustManagerFactory.java
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+/* 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., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 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 gnu.java.security.Engine;
+
+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;
+
+/**
+ * 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;
+ }
+
+ /**
+ * 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.
+ * @throws IllegalArgumentException if <code>algorithm</code> is
+ * <code>null</code> or is an empty string.
+ */
+ public static final TrustManagerFactory getInstance(String algorithm)
+ throws NoSuchAlgorithmException
+ {
+ Provider[] p = Security.getProviders();
+ NoSuchAlgorithmException lastException = null;
+ for (int i = 0; i < p.length; i++)
+ try
+ {
+ return getInstance(algorithm, p[i]);
+ }
+ catch (NoSuchAlgorithmException x)
+ {
+ lastException = x;
+ }
+ if (lastException != null)
+ throw lastException;
+ 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 either <code>algorithm</code> or
+ * <code>provider</code> is <code>null</code>, or if
+ * <code>algorithm</code> is an empty string.
+ */
+ public static final TrustManagerFactory getInstance(String algorithm,
+ String provider)
+ throws NoSuchAlgorithmException, NoSuchProviderException
+ {
+ if (provider == null)
+ throw new IllegalArgumentException("provider MUST NOT be null");
+ 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 either <code>algorithm</code> or
+ * <code>provider</code> is <code>null</code>, or if
+ * <code>algorithm</code> is an empty string.
+ */
+ public static final TrustManagerFactory getInstance(String algorithm,
+ Provider provider)
+ throws NoSuchAlgorithmException
+ {
+ StringBuilder sb = new StringBuilder("TrustManagerFactory algorithm [")
+ .append(algorithm).append("] from provider[")
+ .append(provider).append("] could not be created");
+ Throwable cause;
+ try
+ {
+ Object spi = Engine.getInstance(TRUST_MANAGER_FACTORY, algorithm, provider);
+ return new TrustManagerFactory((TrustManagerFactorySpi) spi,
+ provider,
+ algorithm);
+ }
+ catch (InvocationTargetException x)
+ {
+ cause = x.getCause();
+ if (cause instanceof NoSuchAlgorithmException)
+ throw (NoSuchAlgorithmException) cause;
+ if (cause == null)
+ cause = x;
+ }
+ catch (ClassCastException x)
+ {
+ cause = x;
+ }
+ NoSuchAlgorithmException x = new NoSuchAlgorithmException(sb.toString());
+ x.initCause(cause);
+ throw x;
+ }
+
+ /**
+ * 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);
+ }
+}