/*

 * Copyright (c) 2013, 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 8001326

 * @run main/othervm ReplayCachePrecise

 * @summary when there are 2 two AuthTime with the same time but different hash,

 * it's not a replay.

*/

import java.nio.ByteBuffer;

import java.nio.channels.SeekableByteChannel;

import java.nio.file.Files;

import java.nio.file.Paths;

import java.nio.file.StandardOpenOption;

import java.util.Random;

import sun.security.krb5.KrbException;

import sun.security.krb5.internal.KerberosTime;

import sun.security.krb5.internal.ReplayCache;

import sun.security.krb5.internal.rcache.AuthTimeWithHash;

public class ReplayCachePrecise {

    static final String client = "dummy@REALM";

    static final String server = "server/localhost@REALM";

    static final Random rand = new Random();

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

        AuthTimeWithHash a1 = new AuthTimeWithHash(client, server, time(0), 0,

        AuthTimeWithHash a2 = new AuthTimeWithHash(client, server, time(0), 0,

        KerberosTime now = new KerberosTime(time(0)*1000L);

        // When all new styles, must exact match

        ReplayCache cache = ReplayCache.getInstance("dfl:./c1");

        cache.checkAndStore(now, a1);

        cache.checkAndStore(now, a2);

        // When only old style in cache, partial match

        cache = ReplayCache.getInstance("dfl:./c2");

        cache.checkAndStore(now, a1);

        // A small surgery to remove the new style from the cache file

        SeekableByteChannel ch = Files.newByteChannel(Paths.get("c2"),

                StandardOpenOption.WRITE,

                StandardOpenOption.READ);

        ch.position(6);

        ch.write(ByteBuffer.wrap(a1.encode(false)));

        ch.truncate(ch.position());

        ch.close();

        try {

            cache.checkAndStore(now, a2);

            throw new Exception();

        } catch (KrbException ke) {

            // Correct

            System.out.println(ke);

        }

    }

    private static int time(int x) {

        return (int)(System.currentTimeMillis()/1000) + x;

    }

}