/*
 * Copyright (c) 2006 Kungliga Tekniska Högskolan
 * (Royal Institute of Technology, Stockholm, Sweden). 
 * All rights reserved. 
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions 
 * are met: 
 *
 * 1. Redistributions of source code must retain the above copyright 
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright 
 *    notice, this list of conditions and the following disclaimer in the 
 *    documentation and/or other materials provided with the distribution. 
 *
 * 3. Neither the name of KTH nor the names of its contributors may be
 *    used to endorse or promote products derived from this software without
 *    specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"

#include <stdio.h>
#include <gssapi.h>
#include <err.h>
#include <roken.h>
#include <getarg.h>

RCSID("$Id$");

#include <krb5.h>
#include <heimntlm.h>

static int
test_parse(void)
{
    const char *user = "foo", 
	*domain = "mydomain",
	*password = "digestpassword";
    struct ntlm_type1 type1;
    struct ntlm_type2 type2;
    struct ntlm_type3 type3;
    struct ntlm_buf data;
    krb5_error_code ret;
    
    memset(&type1, 0, sizeof(type1));

    type1.flags = NTLM_NEG_UNICODE|NTLM_NEG_NTLM;
    type1.domain = strdup(domain);
    type1.hostname = NULL;
    type1.os[0] = 0;
    type1.os[1] = 0;

    ret = heim_ntlm_encode_type1(&type1, &data);
    if (ret)
	errx(1, "heim_ntlm_encode_type1");

    memset(&type1, 0, sizeof(type1));

    ret = heim_ntlm_decode_type1(&data, &type1);
    free(data.data);
    if (ret)
	errx(1, "heim_ntlm_encode_type1");

    /*
     *
     */

    memset(&type2, 0, sizeof(type2));

    type2.flags = NTLM_NEG_UNICODE | NTLM_NEG_NTLM | NTLM_NEG_TARGET_DOMAIN;

    memset(type2.challange, 0x7f, sizeof(type2.challange));
    type2.targetname = strdup("DOMAIN");
    type2.targetinfo.data = NULL;
    type2.targetinfo.length = 0;

    ret = heim_ntlm_encode_type2(&type2, &data);
    if (ret)
	errx(1, "heim_ntlm_encode_type2");

    memset(&type2, 0, sizeof(type2));

    ret = heim_ntlm_decode_type2(&data, &type2);
    free(data.data);
    if (ret)
	errx(1, "heim_ntlm_decode_type2");

    /*
     *
     */

    memset(&type3, 0, sizeof(type3));

    type3.flags = type2.flags;
    type3.username = rk_UNCONST(user);
    type3.targetname = type2.targetname;
    type3.ws = rk_UNCONST("workstation");

    {
	struct ntlm_buf key;
	heim_ntlm_nt_key(password, &key);

	heim_ntlm_calculate_ntlm1(key.data, key.length,
				  type2.challange,
				  &type3.ntlm);
	free(key.data);
    }

    ret = heim_ntlm_encode_type3(&type3, &data);
    if (ret)
	errx(1, "heim_ntlm_encode_type3");

    memset(&type3, 0, sizeof(type3));

    ret = heim_ntlm_decode_type3(&data, 1, &type3);
    free(data.data);
    if (ret)
	errx(1, "heim_ntlm_encode_type3");

    /*
     * NTLMv2
     */

    memset(&type2, 0, sizeof(type2));

    type2.flags = NTLM_NEG_UNICODE | NTLM_NEG_NTLM | NTLM_NEG_TARGET_DOMAIN;

    memset(type2.challange, 0x7f, sizeof(type2.challange));
    type2.targetname = strdup("DOMAIN");
    type2.targetinfo.data = "\x00\x00";
    type2.targetinfo.length = 2;

    ret = heim_ntlm_encode_type2(&type2, &data);
    if (ret)
	errx(1, "heim_ntlm_encode_type2");

    memset(&type2, 0, sizeof(type2));

    ret = heim_ntlm_decode_type2(&data, &type2);
    free(data.data);
    if (ret)
	errx(1, "heim_ntlm_decode_type2");

    return 0;
}

static int
test_keys(void)
{
    const char
	*username = "test",
	*password = "test1234",
	*target = "TESTNT";
    const unsigned char 
	serverchallange[8] = "\x67\x7f\x1c\x55\x7a\x5e\xe9\x6c";
    struct ntlm_buf infotarget, answer, key;
    unsigned char ntlmv2[16];
    int ret;
    
    infotarget.length = 70;
    infotarget.data =
	"\x02\x00\x0c\x00\x54\x00\x45\x00\x53\x00\x54\x00\x4e\x00\x54\x00"
	"\x01\x00\x0c\x00\x4d\x00\x45\x00\x4d\x00\x42\x00\x45\x00\x52\x00"
	"\x03\x00\x1e\x00\x6d\x00\x65\x00\x6d\x00\x62\x00\x65\x00\x72\x00"
	    "\x2e\x00\x74\x00\x65\x00\x73\x00\x74\x00\x2e\x00\x63\x00\x6f"
	    "\x00\x6d\x00"
	"\x00\x00\x00\x00";

    answer.length = 0;
    answer.data = NULL;

    heim_ntlm_nt_key(password, &key);


    ret = heim_ntlm_calculate_ntlm2(key.data,
				    key.length,
				    username,
				    target,
				    serverchallange,
				    &infotarget,
				    ntlmv2,
				    &answer);

    

    return 0;
}


static int version_flag = 0;
static int help_flag	= 0;

static struct getargs args[] = {
    {"version",	0,	arg_flag,	&version_flag, "print version", NULL },
    {"help",	0,	arg_flag,	&help_flag,  NULL, NULL }
};

static void
usage (int ret)
{
    arg_printusage (args, sizeof(args)/sizeof(*args),
		    NULL, "");
    exit (ret);
}

int
main(int argc, char **argv)
{
    int ret = 0, optind = 0;

    setprogname(argv[0]);

    if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optind))
	usage(1);
    
    if (help_flag)
	usage (0);

    if(version_flag){
	print_version(NULL);
	exit(0);
    }

    argc -= optind;
    argv += optind;

    ret += test_parse();
    ret += test_keys();

    return 0;
}