/*
 * Copyright 1999 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

/* @test 1.4 07/06/21
 * @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();
    }
}