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Diffstat (limited to 'libjava/javax/net/ssl/SSLContext.java')
| -rw-r--r-- | libjava/javax/net/ssl/SSLContext.java | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/libjava/javax/net/ssl/SSLContext.java b/libjava/javax/net/ssl/SSLContext.java new file mode 100644 index 0000000..45e01c3 --- /dev/null +++ b/libjava/javax/net/ssl/SSLContext.java @@ -0,0 +1,269 @@ +/* SSLContext.java -- an SSL protocol context. + 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.KeyManagementException; +import java.security.NoSuchAlgorithmException; +import java.security.NoSuchProviderException; +import java.security.Provider; +import java.security.SecureRandom; +import java.security.Security; + +import gnu.java.security.Engine; + +/** + * A "meta-factory" for protocol-specific socket and server socket + * factories. This class serves as a clearinghouse for socket + * factories and cached session contexts for a particular protocol, + * such as SSLv3. + * + * @author Casey Marshall (rsdio@metastatic.org) + */ +public class SSLContext +{ + + // Constants and fields. + // ------------------------------------------------------------------ + + /** Service name for SSL contexts. */ + private static final String SSL_CONTEXT = "SSLContext"; + + /** The underlying engine. */ + private final SSLContextSpi ctxSpi; + + /** The provider of the engine class. */ + private final Provider provider; + + /** The protocal name. */ + private final String protocol; + + // Constructor. + // ------------------------------------------------------------------ + + /** + * Create a new SSL context. + * + * @param ctxSpi The context engine. + * @param provider The provider of the implementation. + * @param protocol The name of the SSL protocol. + */ + protected SSLContext(SSLContextSpi ctxSpi, Provider provider, + String protocol) + { + this.ctxSpi = ctxSpi; + this.provider = provider; + this.protocol = protocol; + } + + // Class methods. + // ------------------------------------------------------------------ + + /** + * Get an instance of a context for the specified protocol from the + * first provider that implements it. + * + * @param protocol The name of the protocol to get a context for. + * @return The new context. + * @throws NoSuchAlgorithm If no provider implements the given + * protocol. + */ + public static final SSLContext getInstance(String protocol) + throws NoSuchAlgorithmException + { + Provider[] provs = Security.getProviders(); + for (int i = 0; i < provs.length; i++) + { + try + { + return getInstance(protocol, provs[i]); + } + catch (NoSuchAlgorithmException ignore) + { + } + } + throw new NoSuchAlgorithmException(protocol); + } + + /** + * Get an instance of a context for the specified protocol from the + * named provider. + * + * @param protocol The name of the protocol to get a context for. + * @param provider The name of the provider to get the + * implementation from. + * @return The new context. + * @throws NoSuchAlgorithmException If the provider does not + * implement the given protocol. + * @throws NoSuchProviderException If the named provider does not + * exist. + * @throws IllegalArgumentException If <i>provider</i> is null. + */ + public static final SSLContext getInstance(String protocol, + 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(protocol, p); + } + + /** + * Get an instance of a context for the specified protocol from the + * specified provider. + * + * @param protocol The name of the protocol to get a context for. + * @param provider The name of the provider to get the + * implementation from. + * @return The new context. + * @throws NoSuchAlgorithmException If the provider does not + * implement the given protocol. + * @throws IllegalArgumentException If <i>provider</i> is null. + */ + public static final SSLContext getInstance(String protocol, + Provider provider) + throws NoSuchAlgorithmException + { + try + { + return new SSLContext((SSLContextSpi) + Engine.getInstance(SSL_CONTEXT, protocol, provider), + provider, protocol); + } + catch (InvocationTargetException ite) + { + ite.printStackTrace(); + throw new NoSuchAlgorithmException(); + } + catch (ClassCastException cce) + { + cce.printStackTrace(); + throw new NoSuchAlgorithmException(); + } + } + + // Instance methods. + // ----------------------------------------------------------------- + + /** + * Returns the set of SSL contexts available for client connections. + * + * @return The set of SSL contexts available for client connections. + */ + public final SSLSessionContext getClientSessionContext() + { + return ctxSpi.engineGetClientSessionContext(); + } + + /** + * Returns the protocol name of this context. + * + * @return The protocol name of this context. + */ + public final String getProtocol() + { + return protocol; + } + + /** + * Returns the provider of this implementation. + * + * @return The provider of this implementation. + */ + public final Provider getProvider() + { + return provider; + } + + /** + * Returns the set of SSL contexts available for server connections. + * + * @return The set of SSL contexts available for server connections. + */ + public final SSLSessionContext getServerSessionContext() + { + return ctxSpi.engineGetServerSessionContext(); + } + + /** + * Returns the factory for server SSL sockets. + * + * @return The factory for server SSL sockets. + */ + public final SSLServerSocketFactory getServerSocketFactory() + { + return ctxSpi.engineGetServerSocketFactory(); + } + + /** + * Returns the factory for client SSL sockets. + * + * @return The factory for client SSL sockets. + */ + public final SSLSocketFactory getSocketFactory() + { + return ctxSpi.engineGetSocketFactory(); + } + + /** + * Initializes this context and prepares it for producing socket + * factories. All of the parameters are optional; default values are + * used if left unspecified. + * + * @param keyManagers The set of key managers to use. + * @param trustManagers The set of trust managers to use. + * @param random A source of random bits to use. + * @throws KeyManagementException If initialization fails. + */ + public final void init(KeyManager[] keyManagers, + TrustManager[] trustManagers, + SecureRandom random) + throws KeyManagementException + { + ctxSpi.engineInit(keyManagers, trustManagers, random); + } +} |