/*

 * Copyright (c) 2014, 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.

 *

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/*

 * @test

 * @bug 8022582

 * @summary Relax response flags checking in sun.security.krb5.KrbKdcRep.check.

 * @compile -XDignore.symbol.file ForwardableCheck.java

 * @run main/othervm ForwardableCheck

 */

import org.ietf.jgss.GSSException;

import sun.security.jgss.GSSUtil;

import java.util.Arrays;

public class ForwardableCheck {

    public static void main(String[] args) throws Exception {

        OneKDC kdc = new OneKDC(null);

        kdc.writeJAASConf();

        // USER can impersonate someone else

        kdc.setOption(KDC.Option.ALLOW_S4U2SELF,

                Arrays.asList(OneKDC.USER + "@" + OneKDC.REALM));

        // USER2 is sensitive

        kdc.setOption(KDC.Option.SENSITIVE_ACCOUNTS,

                Arrays.asList(OneKDC.USER2 + "@" + OneKDC.REALM));

        Context c;

        // USER2 is sensitive but it's still able to get a normal ticket

        c = Context.fromUserPass(OneKDC.USER2, OneKDC.PASS2, false);

        // ... and connect to another account

        c.startAsClient(OneKDC.USER, GSSUtil.GSS_KRB5_MECH_OID);

        c.x().requestCredDeleg(true);

        c.x().requestMutualAuth(false);

        c.take(new byte[0]);

        if (!c.x().isEstablished()) {

            throw new Exception("Context should have been established");

        }

        // ... but will not be able to delegate itself

        if (c.x().getCredDelegState()) {

            throw new Exception("Impossible");

        }

        // Although USER is allowed to impersonate other people,

        // it cannot impersonate USER2 coz it's sensitive.

        c = Context.fromUserPass(OneKDC.USER, OneKDC.PASS, false);

        try {

            c.impersonate(OneKDC.USER2);

            throw new Exception("Should fail");

        } catch (GSSException e) {

            e.printStackTrace();

        }

    }

}