jdk/src/java.security.jgss/share/classes/sun/security/jgss/SunProvider.java
author valeriep
Fri, 26 Jun 2015 21:34:34 +0000
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parent 25859 3317bb8137f4
child 33991 619bfc4d582d
permissions -rw-r--r--
7191662: JCE providers should be located via ServiceLoader Summary: Enhanced to use ServiceLoader and switched provider to Provider.Service model. Reviewed-by: mullan, alanb, mchung
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/*
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 * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package sun.security.jgss;
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import java.security.Provider;
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import java.security.AccessController;
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import java.security.PrivilegedAction;
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import java.security.NoSuchAlgorithmException;
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import java.security.InvalidParameterException;
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import java.security.ProviderException;
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import sun.security.jgss.krb5.Krb5MechFactory;
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import sun.security.jgss.spnego.SpNegoMechFactory;
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/**
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 * Defines the Sun JGSS provider.
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 * Will merger this with the Sun security provider
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 * sun.security.provider.Sun when the JGSS src is merged with the JDK
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 * src.
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 *
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 * Mechanisms supported are:
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 *
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 * - Kerberos v5 as defined in RFC 1964.
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 *   Oid is 1.2.840.113554.1.2.2
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 *
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 * - SPNEGO as defined in RFC 2478
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 *   Oid is 1.3.6.1.5.5.2
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 *
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 *   [Dummy mechanism is no longer compiled:
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 * - Dummy mechanism. This is primarily useful to test a multi-mech
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 *   environment.
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 *   Oid is 1.3.6.1.4.1.42.2.26.1.2]
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 *
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 * @author Mayank Upadhyay
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 */
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public final class SunProvider extends Provider {
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    private static final long serialVersionUID = -238911724858694198L;
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    private static final String INFO = "Sun " +
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        "(Kerberos v5, SPNEGO)";
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    //  "(Kerberos v5, Dummy GSS-API Mechanism)";
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    private static final class ProviderService extends Provider.Service {
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        ProviderService(Provider p, String type, String algo, String cn) {
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            super(p, type, algo, cn, null, null);
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        }
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        @Override
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        public Object newInstance(Object ctrParamObj)
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            throws NoSuchAlgorithmException {
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            String type = getType();
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            if (ctrParamObj != null) {
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                throw new InvalidParameterException
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                    ("constructorParameter not used with " + type +
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                     " engines");
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            }
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            String algo = getAlgorithm();
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            try {
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                if (type.equals("GssApiMechanism")) {
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                    if (algo.equals("1.2.840.113554.1.2.2")) {
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                        return new Krb5MechFactory();
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                    } else if (algo.equals("1.3.6.1.5.5.2")) {
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                        return new SpNegoMechFactory();
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                    }
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                }
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            } catch (Exception ex) {
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                throw new NoSuchAlgorithmException
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                    ("Error constructing " + type + " for " +
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                    algo + " using SunJGSS", ex);
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            }
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            throw new ProviderException("No impl for " + algo +
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                " " + type);
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        }
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    }
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    public static final SunProvider INSTANCE = new SunProvider();
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    public SunProvider() {
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        /* We are the Sun JGSS provider */
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        super("SunJGSS", 1.9d, INFO);
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        final Provider p = this;
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        AccessController.doPrivileged(new PrivilegedAction<Void>() {
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            public Void run() {
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                putService(new ProviderService(p, "GssApiMechanism",
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                           "1.2.840.113554.1.2.2",
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                           "sun.security.jgss.krb5.Krb5MechFactory"));
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                putService(new ProviderService(p, "GssApiMechanism",
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                           "1.3.6.1.5.5.2",
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                           "sun.security.jgss.spnego.SpNegoMechFactory"));
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                return null;
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            }
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        });
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    }
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}