/*

 * Copyright (C) 2016-2017 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 Lesser General Public License

 * along with this program.  If not, see <https://www.gnu.org/licenses/>

 */

#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>

#ifdef ENABLE_OCSP

#include "cert-common.h"

#include "ocsp-common.h"

#include "utils.h"

/* Tests whether setting an OCSP response to a server with multiple

 * certificate sets, is working as expected */

static time_t mytime(time_t * t)

{

	time_t then = OCSP_RESP_DATE;

	if (t)

		*t = then;

	return then;

}

static void check_response(gnutls_session_t session, void *priv)

{

	int ret;

	gnutls_datum_t resp;

	gnutls_datum_t *exp_resp = priv;

	ret = gnutls_ocsp_status_request_get(session, &resp);

	if (ret < 0) {

		if (priv == NULL)

			return;

		fail("no response was received\n");

	}

	if (priv == NULL) {

		fail("not expected response, but received one\n");

	}

	if (resp.size != exp_resp->size || memcmp(resp.data, exp_resp->data, resp.size) != 0) {

		fail("did not receive the expected response\n");

	}

	/* Check intermediate response */

	if (gnutls_protocol_get_version(session) == GNUTLS_TLS1_3) {

		ret = gnutls_ocsp_status_request_get2(session, 1, &resp);

		if (ret < 0) {

			fail("no intermediate response was received\n");

		}

		if (resp.size != ocsp_subca3_unknown.size || memcmp(resp.data, ocsp_subca3_unknown.data, resp.size) != 0) {

			fail("did not receive the expected intermediate response\n");

		}

	}

}

static void tls_log_func(int level, const char *str)

{

	fprintf(stderr, "|<%d>| %s", level, str);

}

void doit(void)

{

	int ret;

	gnutls_certificate_credentials_t xcred;

	gnutls_certificate_credentials_t clicred;

	const char *certfile1;

	const char *certfile2;

	const char *ocspfile1;

	const char *ocspfile2;

	const char *ocspfile3;

	char certname1[TMPNAME_SIZE], ocspname1[TMPNAME_SIZE];

	char certname2[TMPNAME_SIZE], ocspname2[TMPNAME_SIZE];

	char ocspname3[TMPNAME_SIZE];

	FILE *fp;

	unsigned index1, index2; /* indexes of certs */

	global_init();

	gnutls_global_set_time_function(mytime);

	gnutls_global_set_log_function(tls_log_func);

	if (debug)

		gnutls_global_set_log_level(4711);

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

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

	gnutls_certificate_set_flags(xcred, GNUTLS_CERTIFICATE_API_V2);

	/* set cert with localhost name */

	certfile1 = get_tmpname(certname1);

	fp = fopen(certfile1, "wb");

	if (fp == NULL)

		fail("error in fopen\n");

	assert(fwrite(server_localhost_ca3_cert_chain_pem, 1, strlen(server_localhost_ca3_cert_chain_pem), fp)>0);

	assert(fwrite(server_ca3_key_pem, 1, strlen((char*)server_ca3_key_pem), fp)>0);

	fclose(fp);

	ret = gnutls_certificate_set_x509_key_file2(xcred, certfile1, certfile1,

						    GNUTLS_X509_FMT_PEM, NULL, 0);

	if (ret < 0)

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

	index1 = ret;

	/* set cert with localhost6 name */

	certfile2 = get_tmpname(certname2);

	fp = fopen(certfile2, "wb");

	if (fp == NULL)

		fail("error in fopen\n");

	assert(fwrite(server_localhost6_ca3_cert_chain_pem, 1, strlen(server_localhost6_ca3_cert_chain_pem), fp)>0);

	assert(fwrite(server_ca3_key_pem, 1, strlen((char*)server_ca3_key_pem), fp)>0);

	fclose(fp);

	ret = gnutls_certificate_set_x509_key_file2(xcred, certfile2, certfile2,

						    GNUTLS_X509_FMT_PEM, NULL, 0);

	if (ret < 0)

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

	index2 = ret;

	/* set OCSP response1 */

	ocspfile1 = get_tmpname(ocspname1);

	fp = fopen(ocspfile1, "wb");

	if (fp == NULL)

		fail("error in fopen\n");

	assert(fwrite(ocsp_ca3_localhost_unknown.data, 1, ocsp_ca3_localhost_unknown.size, fp)>0);

	fclose(fp);

	ret = gnutls_certificate_set_ocsp_status_request_file(xcred, ocspfile1, index1);

	if (ret < 0)

		fail("ocsp file set failed: %s\n", gnutls_strerror(ret));

	/* set OCSP response2 */

	ocspfile2 = get_tmpname(ocspname2);

	fp = fopen(ocspfile2, "wb");

	if (fp == NULL)

		fail("error in fopen\n");

	assert(fwrite(ocsp_ca3_localhost6_unknown.data, 1, ocsp_ca3_localhost6_unknown.size, fp)>0);

	fclose(fp);

	ret = gnutls_certificate_set_ocsp_status_request_file(xcred, ocspfile2, index2);

	if (ret < 0)

		fail("ocsp file set failed: %s\n", gnutls_strerror(ret));

	/* try to set a duplicate OCSP response */

	ocspfile3 = get_tmpname(ocspname3);

	fp = fopen(ocspfile3, "wb");

	if (fp == NULL)

		fail("error in fopen\n");

	assert(fwrite(ocsp_ca3_localhost_unknown_sha1.data, 1, ocsp_ca3_localhost_unknown_sha1.size, fp)>0);

	fclose(fp);

	ret = gnutls_certificate_set_ocsp_status_request_file(xcred, ocspfile3, index1);

	if (ret != 0)

		fail("setting duplicate didn't succeed as expected: %s\n", gnutls_strerror(ret));

	ret = gnutls_certificate_set_ocsp_status_request_file(xcred, ocspfile3, index2);

	if (ret != GNUTLS_E_OCSP_MISMATCH_WITH_CERTS)

		fail("setting invalid didn't fail as expected: %s\n", gnutls_strerror(ret));

	/* re-set the previous duplicate set for index1 to the expected*/

	ret = gnutls_certificate_set_ocsp_status_request_file(xcred, ocspfile1, index1);

	if (ret < 0)

		fail("ocsp file set failed: %s\n", gnutls_strerror(ret));

	/* set an intermediate CA OCSP response */

	fp = fopen(ocspfile3, "wb");

	if (fp == NULL)

		fail("error in fopen\n");

	assert(fwrite(ocsp_subca3_unknown.data, 1, ocsp_subca3_unknown.size, fp)>0);

	fclose(fp);

	ret = gnutls_certificate_set_ocsp_status_request_file(xcred, ocspfile3, index1);

	if (ret < 0)

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

	ret = gnutls_certificate_set_ocsp_status_request_file(xcred, ocspfile3, index2);

	if (ret < 0)

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

	ret = gnutls_certificate_set_x509_trust_mem(clicred, &ca3_cert, GNUTLS_X509_FMT_PEM);

	if (ret < 0) {

		fail("error in setting trust cert: %s\n", gnutls_strerror(ret));

	}

	test_cli_serv(xcred, clicred, "NORMAL:-ECDHE-ECDSA:-VERS-TLS-ALL:+VERS-TLS1.2", "localhost", &ocsp_ca3_localhost_unknown, check_response, NULL);

	test_cli_serv(xcred, clicred, "NORMAL:-ECDHE-ECDSA:-VERS-TLS-ALL:+VERS-TLS1.2", "localhost6", &ocsp_ca3_localhost6_unknown, check_response, NULL);

	test_cli_serv(xcred, clicred, "NORMAL:-ECDHE-ECDSA:-VERS-TLS-ALL:+VERS-TLS1.3", "localhost", &ocsp_ca3_localhost_unknown, check_response, NULL);

	test_cli_serv(xcred, clicred, "NORMAL:-ECDHE-ECDSA:-VERS-TLS-ALL:+VERS-TLS1.3", "localhost6", &ocsp_ca3_localhost6_unknown, check_response, NULL);

	gnutls_certificate_free_credentials(xcred);

	gnutls_certificate_free_credentials(clicred);

	gnutls_global_deinit();

	remove(ocspfile1);

	remove(ocspfile2);

	remove(ocspfile3);

	remove(certfile1);

	remove(certfile2);

}

#else

void doit(void)

{

	exit(77);

}

#endif