/*

 * Copyright (c) 2010, 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 6952519

 * @run main/othervm TcpTimeout

 * @summary kdc_timeout is not being honoured when using TCP

 */

import java.io.*;

import java.net.ServerSocket;

import sun.security.krb5.Config;

public class TcpTimeout {

    public static void main(String[] args)

            throws Exception {

        // Set debug to grab debug output like ">>> KDCCommunication"

        System.setProperty("sun.security.krb5.debug", "true");

        // Called before new ServerSocket on p1 and p2 to make sure

        // customized nameservice is used

        KDC k = new KDC(OneKDC.REALM, OneKDC.KDCHOST, 0, true);

        int p3 = k.getPort();

        k.addPrincipal(OneKDC.USER, OneKDC.PASS);

        k.addPrincipalRandKey("krbtgt/" + OneKDC.REALM);

        // Start two listener that does not communicate, simulate timeout

        int p1 = new ServerSocket(0).getLocalPort();

        int p2 = new ServerSocket(0).getLocalPort();

        FileWriter fw = new FileWriter("alternative-krb5.conf");

        fw.write("[libdefaults]\n" +

                "udp_preference_limit = 1\n" +

                "max_retries = 2\n" +

                "default_realm = " + OneKDC.REALM + "\n" +

                "kdc_timeout = 5000\n");

        fw.write("[realms]\n" + OneKDC.REALM + " = {\n" +

                "kdc = " + OneKDC.KDCHOST + ":" + p1 + "\n" +

                "kdc = " + OneKDC.KDCHOST + ":" + p2 + "\n" +

                "kdc = " + OneKDC.KDCHOST + ":" + p3 + "\n" +

                "}\n");

        fw.close();

        System.setProperty("java.security.krb5.conf", "alternative-krb5.conf");

        Config.refresh();

        System.out.println("Ports opened on " + p1 + ", " + p2 + ", " + p3);

        // The correct behavior should be:

        // 5 sec on p1, 5 sec on p1, fail

        // 5 sec on p2, 5 sec on p2, fail

        // p3 ok, p3 ok again for preauth.

        int count = 6;

        ByteArrayOutputStream bo = new ByteArrayOutputStream();

        PrintStream oldout = System.out;

        System.setOut(new PrintStream(bo));

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

        System.setOut(oldout);

        String[] lines = new String(bo.toByteArray()).split("\n");

        for (String line: lines) {

            if (line.startsWith(">>> KDCCommunication")) {

                System.out.println(line);

                count--;

            }

        }

        if (count != 0) {

            throw new Exception("Retry count is " + count + " less");

        }

    }

}