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Java example source code file (OkAsDelegate.java)

This example Java source code file (OkAsDelegate.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

acceptor, delegpolicystate, delegstate, exception, extendedgsscontext, forwardable, gsscredential, gssexception, initiator, oid, okasdelegate, onekdc

The OkAsDelegate.java Java example source code

/*
 * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * @test
 * @bug 6853328 7172701
 * @run main/othervm OkAsDelegate false true true false false false
 *      FORWARDABLE ticket not allowed, always fail
 * @run main/othervm OkAsDelegate true false false false false false
 *      Service ticket no OK-AS-DELEGATE. Request nothing, gain nothing
 * @run main/othervm OkAsDelegate true false true false false false
 *      Service ticket no OK-AS-DELEGATE. Request deleg policy, gain nothing
 * @run main/othervm OkAsDelegate true true false true false true
 *      Service ticket no OK-AS-DELEGATE. Request deleg, granted
 * @run main/othervm OkAsDelegate true true true true false true
 *      Service ticket no OK-AS-DELEGATE. Request deleg and deleg policy, granted, with info not by policy
 * @run main/othervm -Dtest.kdc.policy.ok-as-delegate OkAsDelegate true false true true true true
 *      Service ticket has OK-AS-DELEGATE. Request deleg policy, granted
 * @run main/othervm -Dtest.kdc.policy.ok-as-delegate OkAsDelegate true true true true true true
 *      Service ticket has OK-AS-DELEGATE. granted, with info by policy
 * @run main/othervm -Dtest.spnego OkAsDelegate false true true false false false
 * @run main/othervm -Dtest.spnego OkAsDelegate true false false false false false
 * @run main/othervm -Dtest.spnego OkAsDelegate true false true false false false
 * @run main/othervm -Dtest.spnego OkAsDelegate true true false true false true
 * @run main/othervm -Dtest.spnego OkAsDelegate true true true true false true
 * @run main/othervm -Dtest.spnego -Dtest.kdc.policy.ok-as-delegate OkAsDelegate true false true true true true
 * @run main/othervm -Dtest.spnego -Dtest.kdc.policy.ok-as-delegate OkAsDelegate true true true true true true
 * @summary Support OK-AS-DELEGATE flag
 */
import com.sun.security.jgss.ExtendedGSSContext;
import org.ietf.jgss.GSSCredential;
import org.ietf.jgss.GSSException;
import org.ietf.jgss.Oid;
import sun.security.jgss.GSSUtil;
import sun.security.krb5.Config;

public class OkAsDelegate {

    public static void main(String[] args)
            throws Exception {
        OkAsDelegate ok = new OkAsDelegate();
        ok.go(
                Boolean.valueOf(args[0]),   // FORWARDABLE in krb5.conf on?
                Boolean.valueOf(args[1]),   // requestDelegState
                Boolean.valueOf(args[2]),   // requestDelegPolicyState
                Boolean.valueOf(args[3]),   // DelegState in response
                Boolean.valueOf(args[4]),   // DelegPolicyState in response
                Boolean.valueOf(args[5])    // getDelegCred OK?
                );
    }

    void go(
            boolean forwardable,
            boolean requestDelegState,
            boolean requestDelegPolicyState,
            boolean delegState,
            boolean delegPolicyState,
            boolean delegated
            ) throws Exception {
        OneKDC kdc = new OneKDC(null);
        kdc.setOption(KDC.Option.OK_AS_DELEGATE,
                System.getProperty("test.kdc.policy.ok-as-delegate"));
        kdc.writeJAASConf();
        if (!forwardable) {
            // The default OneKDC always includes "forwardable = true"
            // in krb5.conf, override it.
            KDC.saveConfig(OneKDC.KRB5_CONF, kdc,
                    "default_keytab_name = " + OneKDC.KTAB);
            Config.refresh();
        }

        Context c, s;
        c = Context.fromJAAS("client");
        s = Context.fromJAAS("com.sun.security.jgss.krb5.accept");

        Oid mech = GSSUtil.GSS_KRB5_MECH_OID;
        if (System.getProperty("test.spnego") != null) {
            mech = GSSUtil.GSS_SPNEGO_MECH_OID;
        }
        c.startAsClient(OneKDC.SERVER, mech);
        ExtendedGSSContext cx = (ExtendedGSSContext)c.x();
        cx.requestCredDeleg(requestDelegState);
        cx.requestDelegPolicy(requestDelegPolicyState);
        s.startAsServer(mech);
        ExtendedGSSContext sx = (ExtendedGSSContext)s.x();

        Context.handshake(c, s);

        if (cx.getCredDelegState() != delegState) {
            throw new Exception("Initiator cred state error");
        }
        if (sx.getCredDelegState() != delegState) {
            throw new Exception("Acceptor cred state error");
        }
        if (cx.getDelegPolicyState() != delegPolicyState) {
            throw new Exception("Initiator cred policy state error");
        }

        GSSCredential cred = null;
        try {
            cred = s.x().getDelegCred();
        } catch (GSSException e) {
            // leave cred as null
        }

        if (delegated != (cred != null)) {
            throw new Exception("get cred error");
        }
    }
}

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