/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 *

 * 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

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 *

 * 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

 * @summary JAAS Krb5LoginModule has suspect ticket-renewal logic,

 *          relies on clockskew grace

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

 */

import sun.security.krb5.Config;

import java.nio.file.Files;

import java.nio.file.Paths;

import java.util.Arrays;

import java.util.Date;

import javax.security.auth.kerberos.KerberosTicket;

public class Renew {

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

        // Three test cases:

        // 1. renewTGT=false

        // 2. renewTGT=true with a short life time, renew will happen

        // 3. renewTGT=true with a long life time, renew won't happen

        int test = Integer.parseInt(args[0]);

        OneKDC k = new OneKDC(null);

        KDC.saveConfig(OneKDC.KRB5_CONF, k,

                "renew_lifetime = 1d",

                "ticket_lifetime = " + (test == 2? "10s": "8h"));

        Config.refresh();

        k.writeJAASConf();

        // KDC would save ccache in a file

        System.setProperty("test.kdc.save.ccache", "cache.here");

        Files.write(Paths.get(OneKDC.JAAS_CONF), Arrays.asList(

                "first {",

                "   com.sun.security.auth.module.Krb5LoginModule required;",

                "};",

                "second {",

                "   com.sun.security.auth.module.Krb5LoginModule required",

                "   doNotPrompt=true",

                "   renewTGT=" + (test != 1),

                "   useTicketCache=true",

                "   ticketCache=cache.here;",

                "};"

        ));

        Context c;

        // The first login uses username and password

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

        Date d1 = c.s().getPrivateCredentials(KerberosTicket.class).iterator().next().getAuthTime();

        // 6s is longer than half of 10s

        Thread.sleep(6000);

        // The second login uses the cache

        c = Context.fromJAAS("second");

        Date d2 = c.s().getPrivateCredentials(KerberosTicket.class).iterator().next().getAuthTime();

        if (test == 2) {

            if (d1.equals(d2)) {

                throw new Exception("Ticket not renewed");

            }

        } else {

            if (!d1.equals(d2)) {

                throw new Exception("Ticket renewed");

            }

        }

    }

}