/*

 * Copyright (C) 2014-2016 Nikos Mavrogiannopoulos

 * Copyright (C) 2016 Red Hat, Inc.

 *

 * Author: Nikos Mavrogiannopoulos

 *

 * This file is part of GnuTLS.

 *

 * GnuTLS is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 3 of the License, or

 * (at your option) any later version.

 *

 * GnuTLS 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 for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with GnuTLS; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA

 */

#ifdef HAVE_CONFIG_H

#include <config.h>

#endif

#include <stdio.h>

#include <stdlib.h>

#include <assert.h>

#include <gnutls/gnutls.h>

#include <gnutls/x509.h>

#include "cert-common.h"

#include "utils.h"

static void compare(const gnutls_datum_t *der, const void *ipem)

{

	gnutls_datum_t pem = {(void*)ipem, strlen((char*)ipem)};

	gnutls_datum_t new_der;

	int ret;

	ret = gnutls_pem_base64_decode2("CERTIFICATE", &pem, &new_der);

	if (ret < 0) {

		fail("error: %s\n", gnutls_strerror(ret));

	}

	if (der->size != new_der.size || memcmp(der->data, new_der.data, der->size) != 0) {

		fail("error in %d: %s\n", __LINE__, "cert don't match");

		exit(1);

	}

	gnutls_free(new_der.data);

	return;

}

static void write_der(const char *file, const char *header, const char *ipem)

{

	gnutls_datum_t pem = {(void*)ipem, strlen((char*)ipem)};

	gnutls_datum_t der;

	FILE *fp;

	int ret;

	ret = gnutls_pem_base64_decode2(header, &pem, &der;;

	if (ret < 0) {

		fail("error: %s\n", gnutls_strerror(ret));

	}

	fp = fopen(file, "wb");

	if (fp == NULL)

		fail("error in fopen\n");

	assert(fwrite(der.data, 1, der.size, fp)>0);

	fclose(fp);

	gnutls_free(der.data);

}

void doit(void)

{

	int ret;

	gnutls_certificate_credentials_t xcred, clicred;

	char keyfile[TMPNAME_SIZE];

	char certfile[TMPNAME_SIZE];

	gnutls_datum_t tcert;

	global_init();

	assert(gnutls_certificate_allocate_credentials(&xcred) >= 0);

	if (TMP_MAX < 2)

		exit(77);

	assert(gnutls_certificate_allocate_credentials(&clicred) >= 0);

	ret = gnutls_certificate_set_x509_trust_mem(clicred, &ca2_cert, GNUTLS_X509_FMT_PEM);

	if (ret < 0)

		fail("set_x509_trust_file failed: %s\n", gnutls_strerror(ret));

	assert(get_tmpname(certfile)!=NULL);

	assert(get_tmpname(keyfile)!=NULL);

	write_der(certfile, "CERTIFICATE", (char*)server2_cert_pem);

	write_der(keyfile, "RSA PRIVATE KEY", (char*)server2_key_pem);

	ret = gnutls_certificate_set_x509_key_file2(xcred, certfile, keyfile,

						    GNUTLS_X509_FMT_DER, NULL, 0);

	if (ret < 0)

		fail("set_x509_key_file failed: %s\n", gnutls_strerror(ret));

	/* verify whether the stored certificate match the ones we have */

	ret = gnutls_certificate_get_crt_raw(xcred, 0, 0, &tcert);

	if (ret < 0) {

		fail("error in %d: %s\n", __LINE__, gnutls_strerror(ret));

		exit(1);

	}

	compare(&tcert, server2_cert_pem);

	remove(certfile);

	remove(keyfile);

	test_cli_serv(xcred, clicred, "NORMAL", "localhost", NULL, NULL, NULL); /* the DNS name of the first cert */

	gnutls_certificate_free_credentials(xcred);

	gnutls_certificate_free_credentials(clicred);

	gnutls_global_deinit();

}