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From-SVN: r102074
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Tom Tromey
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libjava/classpath/javax/net/ssl/HttpsURLConnection.java
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libjava/classpath/javax/net/ssl/HttpsURLConnection.java
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/* HttpsURLConnection.java -- an HTTPS connection.
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Copyright (C) 2004 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.net.ssl;
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import java.io.IOException;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.security.cert.Certificate;
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/**
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* A URL connection that connects via the <i>Secure Socket Layer</i>
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* (<b>SSL</b>) for HTTPS connections.
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*
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* <p>This class may be used in the same way as {@link
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* HttpURLConnection}, and it will transparently negotiate the SSL
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* connection.
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*
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* @author Casey Marshall (rsdio@metastatic.org)
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*/
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public abstract class HttpsURLConnection extends HttpURLConnection
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{
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// Fields.
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// ------------------------------------------------------------------
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/**
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* The default verifier.
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* This is lazily initialized as required.
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* @see #getDefaultHostnameVerifier
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*/
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private static HostnameVerifier defaultVerifier;
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/**
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* The default factory.
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* This is lazily initialized as required.
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* @see #getDefaultSSLSocketFactory
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*/
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private static SSLSocketFactory defaultFactory;
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/**
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* The hostname verifier used for this connection.
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*/
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protected HostnameVerifier hostnameVerifier;
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/**
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* This connection's socket factory.
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*/
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private SSLSocketFactory factory;
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// Constructor.
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// ------------------------------------------------------------------
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/**
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* Creates a new HTTPS URL connection.
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*
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* @param url The URL of the connection being established.
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* @throws IOException If the connection cannot be established.
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*/
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protected HttpsURLConnection(URL url) throws IOException
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{
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super(url);
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}
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// Class methods.
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// ------------------------------------------------------------------
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/**
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* Returns the default hostname verifier used in all new
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* connections.
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* If the default verifier has not been set, a new default one will be
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* provided by this method.
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*
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* @return The default hostname verifier.
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*/
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public static synchronized HostnameVerifier getDefaultHostnameVerifier()
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{
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if (defaultVerifier == null)
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{
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defaultVerifier = new TrivialHostnameVerifier();
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}
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return defaultVerifier;
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}
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/**
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* Sets the default hostname verifier to be used in all new
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* connections.
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*
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* @param newDefault The new default hostname verifier.
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* @throws IllegalArgumentException If <i>newDefault</i> is null.
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* @throws SecurityException If there is a security manager
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* currently installed and the caller does not have the {@link
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* SSLPermission} "setHostnameVerifier".
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*/
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public static void setDefaultHostnameVerifier(HostnameVerifier newDefault)
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{
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if (newDefault == null)
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throw new IllegalArgumentException("default verifier cannot be null");
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SecurityManager sm = System.getSecurityManager();
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if (sm != null)
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sm.checkPermission(new SSLPermission("setHostnameVerifier"));
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synchronized (HttpsURLConnection.class)
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{
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defaultVerifier = newDefault;
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}
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}
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/**
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* Returns the default SSL socket factory used in all new
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* connections.
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* If the default SSL socket factory has not been set, a new default one
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* will be provided by this method.
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*
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* @return The default SSL socket factory.
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*/
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public static synchronized SSLSocketFactory getDefaultSSLSocketFactory()
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{
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if (defaultFactory == null)
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{
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try
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{
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defaultFactory = (SSLSocketFactory) SSLSocketFactory.getDefault();
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}
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catch (Throwable t)
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{
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t.printStackTrace();
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}
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}
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return defaultFactory;
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}
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/**
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* Sets the default SSL socket factory to be used in all new
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* connections.
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*
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* @param newDefault The new socket factory.
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* @throws IllegalArgumentException If <i>newDefault</i> is null.
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* @throws SecurityException If there is a security manager
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* installed and a call to {@link
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* SecurityManager#checkSetFactory()} fails.
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*/
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public static void setDefaultSSLSocketFactory(SSLSocketFactory newDefault)
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{
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if (newDefault == null)
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throw new IllegalArgumentException("default factory cannot be null");
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SecurityManager sm = System.getSecurityManager();
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if (sm != null)
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sm.checkSetFactory();
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synchronized (HttpsURLConnection.class)
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{
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defaultFactory = newDefault;
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}
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}
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// Instance methods.
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// ------------------------------------------------------------------
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/**
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* Returns the current hostname verifier for this instance.
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*
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* @return The hostname verifier.
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*/
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public HostnameVerifier getHostnameVerifier()
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{
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if (hostnameVerifier == null)
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{
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hostnameVerifier = getDefaultHostnameVerifier();
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}
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return hostnameVerifier;
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}
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/**
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* Sets the hostname verifier for this instance.
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*
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* @param hostnameVerifier The new verifier.
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* @throws IllegalArgumentException If <i>hostnameVerifier</i> is
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* null.
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*/
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public void setHostnameVerifier(HostnameVerifier hostnameVerifier)
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{
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if (hostnameVerifier == null)
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throw new IllegalArgumentException("verifier cannot be null");
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this.hostnameVerifier = hostnameVerifier;
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}
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/**
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* Returns the current SSL socket factory for this instance.
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*
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* @return The current SSL socket factory.
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*/
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public SSLSocketFactory getSSLSocketFactory()
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{
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if (factory == null)
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{
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factory = getDefaultSSLSocketFactory();
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}
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return factory;
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}
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/**
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* Sets the SSL socket factory for this instance.
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*
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* @param factory The new factory.
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* @throws IllegalArgumentException If <i>factory</i> is null.
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*/
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public void setSSLSocketFactory(SSLSocketFactory factory)
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{
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if (factory == null)
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throw new IllegalArgumentException("factory cannot be null");
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this.factory = factory;
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}
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// Abstract methods.
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// -------------------------------------------------------------------
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/**
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* Returns the cipher name negotiated for this connection.
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*
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* @return The cipher name.
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* @throws IllegalStateException If the connection has not yet been
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* established.
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*/
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public abstract String getCipherSuite();
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/**
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* Returns the certificates used on the local side in this
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* connection.
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*
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* @return The local certificates.
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* @throws IllegalStateException If the connection has not yet been
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* established.
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*/
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public abstract Certificate[] getLocalCertificates();
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/**
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* Returns the certificates sent by the other party.
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*
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* @return The peer's certificates.
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* @throws IllegalStateException If the connection has not yet been
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* established.
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* @throws SSLPeerUnverifiedException If the peer could not be
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* verified.
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*/
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public abstract Certificate[] getServerCertificates() throws SSLPeerUnverifiedException;
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}
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