/*

 * Copyright (c) 2015, 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 8078439

 * @summary SPNEGO auth fails if client proposes MS krb5 OID

 */

import org.ietf.jgss.GSSContext;

import org.ietf.jgss.GSSCredential;

import org.ietf.jgss.GSSException;

import org.ietf.jgss.GSSManager;

import java.lang.Exception;

import java.nio.file.Files;

import java.nio.file.Paths;

import java.util.Arrays;

import java.util.Base64;

public class MSOID {

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

        // msoid.txt is a NegTokenInit packet sent from Internet Explorer to

        // IIS server on a test machine. No sensitive info included.

        byte[] header = Files.readAllBytes(

                Paths.get(System.getProperty("test.src"), "msoid.txt"));

        byte[] token = Base64.getMimeDecoder().decode(

                Arrays.copyOfRange(header, 10, header.length));

        GSSCredential cred = null;

        GSSContext ctx = GSSManager.getInstance().createContext(cred);

        try {

            ctx.acceptSecContext(token, 0, token.length);

            // Before the fix, GSS_KRB5_MECH_OID_MS is not recognized

            // and acceptor chooses another mech and goes on

            throw new Exception("Should fail");

        } catch (GSSException gsse) {

            // After the fix, GSS_KRB5_MECH_OID_MS is recognized but the token

            // cannot be accepted because we don't have any krb5 credential.

            gsse.printStackTrace();

            if (gsse.getMajor() != GSSException.NO_CRED) {

                throw gsse;

            }

            for (StackTraceElement st: gsse.getStackTrace()) {

                if (st.getClassName().startsWith("sun.security.jgss.krb5.")) {

                    // Good, it is already in krb5 mech's hand.

                    return;

                }

            }

            throw gsse;

        }

    }

}