/*

 * Copyright (c) 1999, 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 4228833

 * @summary Make sure constructor that takes DerValue argument works

 */

import sun.security.util.*;

import sun.security.x509.*;

public class DerValueConstructor {

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

        String name = "CN=anne test";

        DerOutputStream debugDER;

        byte[] ba;

        /*

         * X500Name

         */

        // encode

        X500Name dn = new X500Name(name);

        System.err.println("DEBUG: dn: " + dn.toString());

        debugDER = new DerOutputStream();

        dn.encode(debugDER);

        ba = debugDER.toByteArray();

        System.err.print("DEBUG: encoded X500Name bytes: ");

        System.out.println(toHexString(ba));

        System.err.println();

        // decode

        System.out.println("DEBUG: decoding into X500Name ...");

        X500Name dn1 = new X500Name(new DerValue(ba));

        System.err.println("DEBUG: dn1: " + dn1.toString());

        System.err.println();

        dn1 = new X500Name(ba);

        System.err.println("DEBUG: dn1: " + dn1.toString());

        System.err.println();

        dn1 = new X500Name(new DerInputStream(ba));

        System.err.println("DEBUG: dn1: " + dn1.toString());

        System.err.println();

        /*

         * GeneralName

         */

        // encode

        GeneralName gn = new GeneralName(dn);

        System.err.println("DEBUG: gn: " + gn.toString());

        debugDER = new DerOutputStream();

        gn.encode(debugDER);

        ba = debugDER.toByteArray();

        System.err.print("DEBUG: encoded GeneralName bytes: ");

        System.out.println(toHexString(ba));

        System.err.println();

        // decode

        System.out.println("DEBUG: decoding into GeneralName ...");

        GeneralName gn1 = new GeneralName(new DerValue(ba));

        System.err.println("DEBUG: gn1: " + gn1.toString());

        System.err.println();

        /*

         * GeneralSubtree

         */

        // encode

        GeneralSubtree subTree = new GeneralSubtree(gn, 0, -1);

        System.err.println("DEBUG: subTree: " + subTree.toString());

        debugDER = new DerOutputStream();

        subTree.encode(debugDER);

        ba = debugDER.toByteArray();

        System.err.print("DEBUG: encoded GeneralSubtree bytes: ");

        System.out.println(toHexString(ba));

        System.err.println();

        // decode

        GeneralSubtree debugSubtree = new GeneralSubtree(new DerValue(ba));

    }

    /*

     * Converts a byte to hex digit and writes to the supplied buffer

     */

    private static void byte2hex(byte b, StringBuffer buf) {

        char[] hexChars = { '0', '1', '2', '3', '4', '5', '6', '7', '8',

                            '9', 'A', 'B', 'C', 'D', 'E', 'F' };

        int high = ((b & 0xf0) >> 4);

        int low = (b & 0x0f);

        buf.append(hexChars[high]);

        buf.append(hexChars[low]);

    }

    /*

     * Converts a byte array to hex string

     */

    private static String toHexString(byte[] block) {

        StringBuffer buf = new StringBuffer();

        int len = block.length;

        for (int i = 0; i < len; i++) {

            byte2hex(block[i], buf);

            if (i < len-1) {

                buf.append(":");

            }

        }

        return buf.toString();

    }

}