295 lines
9 KiB
Java
295 lines
9 KiB
Java
/* X509TrustManagerFactory.java -- X.509 trust manager factory.
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is a 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 of the License, or (at
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your option) 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; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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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 gnu.javax.net.ssl.provider;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.util.Arrays;
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import java.util.Enumeration;
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import java.util.HashSet;
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import java.util.LinkedList;
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import java.util.Set;
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import java.security.AccessController;
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import java.security.InvalidAlgorithmParameterException;
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import java.security.KeyStore;
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import java.security.KeyStoreException;
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import java.security.NoSuchAlgorithmException;
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import java.security.cert.CertPath;
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import java.security.cert.CertPathValidator;
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import java.security.cert.CertPathValidatorException;
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import java.security.cert.Certificate;
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import java.security.cert.CertificateException;
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import java.security.cert.PKIXParameters;
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import java.security.cert.TrustAnchor;
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import java.security.cert.X509Certificate;
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import javax.net.ssl.ManagerFactoryParameters;
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import javax.net.ssl.TrustManager;
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import javax.net.ssl.TrustManagerFactorySpi;
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import javax.net.ssl.X509TrustManager;
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import gnu.java.security.action.GetPropertyAction;
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import gnu.java.security.x509.X509CertPath;
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import gnu.javax.net.ssl.NullManagerParameters;
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import gnu.javax.net.ssl.StaticTrustAnchors;
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/**
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* This class implements a {@link javax.net.ssl.TrustManagerFactory} engine
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* for the ``JessieX509'' algorithm.
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*/
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public class X509TrustManagerFactory extends TrustManagerFactorySpi
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{
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// Constants and fields.
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// -------------------------------------------------------------------------
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private static final String sep
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= AccessController.doPrivileged(new GetPropertyAction("file.separator"));
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/**
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* The location of the JSSE key store.
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*/
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private static final String JSSE_CERTS
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= AccessController.doPrivileged(new GetPropertyAction("java.home"))
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+ sep + "lib" + sep + "security" + sep + "jssecerts";
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/**
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* The location of the system key store, containing the CA certs.
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*/
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private static final String CA_CERTS
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= AccessController.doPrivileged(new GetPropertyAction("java.home"))
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+ sep + "lib" + sep + "security" + sep + "cacerts";
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private Manager current;
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// Construtors.
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// -------------------------------------------------------------------------
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public X509TrustManagerFactory()
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{
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super();
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}
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// Instance methods.
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// -------------------------------------------------------------------------
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protected TrustManager[] engineGetTrustManagers()
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{
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if (current == null)
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{
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throw new IllegalStateException("not initialized");
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}
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return new TrustManager[] { current };
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}
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protected void engineInit(ManagerFactoryParameters params)
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throws InvalidAlgorithmParameterException
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{
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if (params instanceof StaticTrustAnchors)
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{
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current = new Manager(((StaticTrustAnchors) params).getCertificates());
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}
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else if (params instanceof NullManagerParameters)
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{
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current = new Manager(new X509Certificate[0]);
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}
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else
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{
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throw new InvalidAlgorithmParameterException();
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}
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}
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protected void engineInit(KeyStore store) throws KeyStoreException
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{
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if (store == null)
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{
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GetPropertyAction gpa = new GetPropertyAction("javax.net.ssl.trustStoreType");
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String s = AccessController.doPrivileged(gpa);
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if (s == null)
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s = KeyStore.getDefaultType();
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store = KeyStore.getInstance(s);
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try
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{
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s = AccessController.doPrivileged(gpa.setParameters("javax.net.ssl.trustStore"));
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FileInputStream in = null;
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if (s == null)
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{
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try
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{
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in = new FileInputStream(JSSE_CERTS);
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}
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catch (IOException e)
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{
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in = new FileInputStream(CA_CERTS);
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}
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}
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else
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{
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in = new FileInputStream(s);
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}
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String p = AccessController.doPrivileged(gpa.setParameters("javax.net.ssl.trustStorePassword"));
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store.load(in, p != null ? p.toCharArray() : null);
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}
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catch (IOException ioe)
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{
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throw new KeyStoreException(ioe);
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}
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catch (CertificateException ce)
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{
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throw new KeyStoreException(ce);
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}
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catch (NoSuchAlgorithmException nsae)
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{
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throw new KeyStoreException(nsae);
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}
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}
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LinkedList<X509Certificate> l = new LinkedList<X509Certificate>();
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Enumeration aliases = store.aliases();
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while (aliases.hasMoreElements())
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{
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String alias = (String) aliases.nextElement();
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if (!store.isCertificateEntry(alias))
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continue;
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Certificate c = store.getCertificate(alias);
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if (!(c instanceof X509Certificate))
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continue;
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l.add((X509Certificate) c);
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}
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current = this.new Manager(l.toArray(new X509Certificate[l.size()]));
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}
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// Inner class.
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// -------------------------------------------------------------------------
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/**
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* The actual manager implementation returned.
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*/
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private class Manager implements X509TrustManager
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{
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// Fields.
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// -----------------------------------------------------------------------
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private final Set<TrustAnchor> anchors;
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// Constructor.
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// -----------------------------------------------------------------------
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Manager(X509Certificate[] trusted)
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{
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anchors = new HashSet<TrustAnchor>();
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if (trusted != null)
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{
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for (X509Certificate cert : trusted)
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{
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anchors.add(new TrustAnchor(cert, null));
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}
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}
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}
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// Instance methodns.
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// -----------------------------------------------------------------------
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public void checkClientTrusted(X509Certificate[] chain, String authType)
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throws CertificateException
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{
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checkTrusted(chain, authType);
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}
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public void checkServerTrusted(X509Certificate[] chain, String authType)
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throws CertificateException
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{
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checkTrusted(chain, authType);
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}
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public X509Certificate[] getAcceptedIssuers()
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{
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return anchors.toArray(new X509Certificate[anchors.size()]);
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}
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// Own methods.
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// -----------------------------------------------------------------------
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private void checkTrusted(X509Certificate[] chain, String authType)
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throws CertificateException
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{
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CertPathValidator validator = null;
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try
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{
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validator = CertPathValidator.getInstance("PKIX");
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}
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catch (NoSuchAlgorithmException nsae)
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{
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throw new CertificateException(nsae);
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}
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CertPath path = new X509CertPath(Arrays.asList(chain));
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PKIXParameters params = null;
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try
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{
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params = new PKIXParameters(anchors);
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// XXX we probably do want to enable revocation, but it's a pain
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// in the ass.
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params.setRevocationEnabled(false);
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}
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catch (InvalidAlgorithmParameterException iape)
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{
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throw new CertificateException(iape);
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}
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try
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{
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validator.validate(path, params);
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}
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catch (CertPathValidatorException cpve)
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{
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throw new CertificateException(cpve);
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}
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catch (InvalidAlgorithmParameterException iape)
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{
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throw new CertificateException(iape);
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}
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}
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}
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}
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