/*
 * Copyright (c) 2012 Red Hat Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *     * Redistributions of source code must retain the above
 *       copyright notice, this list of conditions and the
 *       following disclaimer.
 *     * 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.
 *     * The names of contributors to this software may not be
 *       used to endorse or promote products derived from this
 *       software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE
 * COPYRIGHT OWNER OR 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.
 *
 * Author: Stef Walter <stefw@gnome.org>
 */

#include "config.h"
#include "CuTest.h"

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include "attrs.h"
#include "checksum.h"
#include "debug.h"
#include "library.h"
#include "pkcs11x.h"
#include "test-data.h"
#include "token.h"

struct {
	CK_FUNCTION_LIST *module;
	CK_SLOT_ID slot;
	CK_SESSION_HANDLE session;
} test;

static void
setup (CuTest *cu)
{
	CK_C_INITIALIZE_ARGS args;
	const char *anchors;
	const char *certs;
	char *arguments;
	CK_ULONG count;
	CK_RV rv;

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

	/* This is the entry point of the trust module, linked to this test */
	rv = C_GetFunctionList (&test.module);
	CuAssertTrue (cu, rv == CKR_OK);

	memset (&args, 0, sizeof (args));
	anchors = SRCDIR "/anchors:" SRCDIR "/files/cacert-ca.der";
	certs = SRCDIR "/certificates";
	if (asprintf (&arguments, "anchors='%s' certificates='%s'", anchors, certs) < 0)
		CuAssertTrue (cu, false && "not reached");
	args.pReserved = arguments;
	args.flags = CKF_OS_LOCKING_OK;

	rv = test.module->C_Initialize (&args);
	CuAssertTrue (cu, rv == CKR_OK);

	free (arguments);

	count = 1;
	rv = test.module->C_GetSlotList (CK_TRUE, &test.slot, &count);
	CuAssertTrue (cu, rv == CKR_OK);
	CuAssertTrue (cu, count == 1);

	rv = test.module->C_OpenSession (test.slot, CKF_SERIAL_SESSION, NULL, NULL, &test.session);
	CuAssertTrue (cu, rv == CKR_OK);
}

static void
teardown (CuTest *cu)
{
	CK_RV rv;

	rv = test.module->C_CloseSession (test.session);
	CuAssertTrue (cu, rv == CKR_OK);

	rv = test.module->C_Finalize (NULL);
	CuAssertTrue (cu, rv == CKR_OK);

	memset (&test, 0, sizeof (test));
}

static CK_ULONG
find_objects (CuTest *cu,
              CK_ATTRIBUTE *match,
              CK_OBJECT_HANDLE *objects,
              CK_ULONG num_objects)
{
	CK_RV rv;
	CK_ULONG count;

	count = p11_attrs_count (match);

	rv = test.module->C_FindObjectsInit (test.session, match, count);
	CuAssertTrue (cu, rv == CKR_OK);
	rv = test.module->C_FindObjects (test.session, objects, num_objects, &num_objects);
	CuAssertTrue (cu, rv == CKR_OK);
	rv = test.module->C_FindObjectsFinal (test.session);
	CuAssertTrue (cu, rv == CKR_OK);

	return num_objects;
}

static void
check_trust_object_equiv (CuTest *cu,
                          CK_OBJECT_HANDLE trust,
                          CK_ATTRIBUTE *cert)
{
	unsigned char subject[1024];
	unsigned char issuer[1024];
	unsigned char serial[128];
	CK_BBOOL modifiable;
	CK_BBOOL private;
	CK_BBOOL token;
	CK_RV rv;

	/* The following attributes should be equivalent to the certificate */
	CK_ATTRIBUTE equiv[] = {
		{ CKA_TOKEN, &token, sizeof (token) },
		{ CKA_PRIVATE, &private, sizeof (private) },
		{ CKA_MODIFIABLE, &modifiable, sizeof (modifiable) },
		{ CKA_ISSUER, issuer, sizeof (issuer) },
		{ CKA_SUBJECT, subject, sizeof (subject) },
		{ CKA_SERIAL_NUMBER, serial, sizeof (serial) },
		{ CKA_INVALID, },
	};

	rv = test.module->C_GetAttributeValue (test.session, trust, equiv, 6);
	CuAssertTrue (cu, rv == CKR_OK);

	CuAssertTrue (cu, p11_attrs_match (cert, equiv));
}

static void
check_trust_object_hashes (CuTest *cu,
                           CK_OBJECT_HANDLE trust,
                           CK_ATTRIBUTE *cert)
{
	unsigned char sha1[P11_CHECKSUM_SHA1_LENGTH];
	unsigned char md5[P11_CHECKSUM_MD5_LENGTH];
	unsigned char check[128];
	CK_ATTRIBUTE *value;
	CK_RV rv;

	CK_ATTRIBUTE hashes[] = {
		{ CKA_CERT_SHA1_HASH, sha1, sizeof (sha1) },
		{ CKA_CERT_MD5_HASH, md5, sizeof (md5) },
		{ CKA_INVALID, },
	};

	rv = test.module->C_GetAttributeValue (test.session, trust, hashes, 2);
	CuAssertTrue (cu, rv == CKR_OK);

	value = p11_attrs_find (cert, CKA_VALUE);
	CuAssertPtrNotNull (cu, value);

	p11_checksum_md5 (check, value->pValue, value->ulValueLen, NULL);
	CuAssertTrue (cu, memcmp (md5, check, sizeof (md5)) == 0);

	p11_checksum_sha1 (check, value->pValue, value->ulValueLen, NULL);
	CuAssertTrue (cu, memcmp (sha1, check, sizeof (sha1)) == 0);
}

static void
check_has_trust_object (CuTest *cu,
                        CK_ATTRIBUTE *cert)
{
	CK_OBJECT_CLASS trust_object = CKO_NETSCAPE_TRUST;
	CK_ATTRIBUTE klass = { CKA_CLASS, &trust_object, sizeof (trust_object) };
	CK_OBJECT_HANDLE objects[2];
	CK_ATTRIBUTE *match;
	CK_ATTRIBUTE *attr;
	CK_ULONG count;

	attr = p11_attrs_find (cert, CKA_ID);
	CuAssertPtrNotNull (cu, attr);

	match = p11_attrs_build (NULL, &klass, attr, NULL);
	count = find_objects (cu, match, objects, 2);
	CuAssertIntEquals (cu, 1, count);

	check_trust_object_equiv (cu, objects[0], cert);
	check_trust_object_hashes (cu, objects[0], cert);
}

static void
check_certificate (CuTest *cu,
                   CK_OBJECT_HANDLE handle)
{
	unsigned char label[4096]= { 0, };
	CK_OBJECT_CLASS klass;
	unsigned char value[4096];
	unsigned char subject[1024];
	unsigned char issuer[1024];
	unsigned char serial[128];
	unsigned char id[128];
	CK_CERTIFICATE_TYPE type;
	CK_BBOOL val;
	CK_BYTE check[3];
	CK_DATE start;
	CK_DATE end;
	CK_ULONG category;
	CK_BBOOL modifiable;
	CK_BBOOL private;
	CK_BBOOL token;
	CK_RV rv;

	CK_ATTRIBUTE attrs[] = {
		{ CKA_CLASS, &klass, sizeof (klass) },
		{ CKA_TOKEN, &token, sizeof (token) },
		{ CKA_PRIVATE, &private, sizeof (private) },
		{ CKA_MODIFIABLE, &modifiable, sizeof (modifiable) },
		{ CKA_VALUE, value, sizeof (value) },
		{ CKA_ISSUER, issuer, sizeof (issuer) },
		{ CKA_SUBJECT, subject, sizeof (subject) },
		{ CKA_CERTIFICATE_TYPE, &type, sizeof (type) },
		{ CKA_CERTIFICATE_CATEGORY, &category, sizeof (category) },
		{ CKA_START_DATE, &start, sizeof (start) },
		{ CKA_END_DATE, &end, sizeof (end) },
		{ CKA_SERIAL_NUMBER, serial, sizeof (serial) },
		{ CKA_CHECK_VALUE, check, sizeof (check) },
		{ CKA_ID, id, sizeof (id) },
		{ CKA_LABEL, label, sizeof (label) },
		{ CKA_INVALID, },
	};

	/* Note that we don't pass the CKA_INVALID attribute in */
	rv = test.module->C_GetAttributeValue (test.session, handle, attrs, 15);
	CuAssertTrue (cu, rv == CKR_OK);

	/* If this is the cacert3 certificate, check its values */
	if (memcmp (value, test_cacert3_ca_der, sizeof (test_cacert3_ca_der)) == 0) {
		CK_BBOOL trusted;

		CK_ATTRIBUTE anchor[] = {
			{ CKA_TRUSTED, &trusted, sizeof (trusted) },
			{ CKA_INVALID, },
		};

		test_check_cacert3_ca (cu, attrs, NULL);

		/* Get anchor specific attributes */
		rv = test.module->C_GetAttributeValue (test.session, handle, anchor, 1);
		CuAssertTrue (cu, rv == CKR_OK);

		/* It lives in the trusted directory */
		if (!p11_attrs_find_bool (anchor, CKA_TRUSTED, &val))
			CuFail (cu, "missing CKA_TRUSTED");
		CuAssertIntEquals (cu, CK_TRUE, val);

	/* Other certificates, we can't check the values */
	} else {
		test_check_object (cu, attrs, CKO_CERTIFICATE, NULL);
	}

	check_has_trust_object (cu, attrs);
}

static void
test_find_certificates (CuTest *cu)
{
	CK_OBJECT_CLASS klass = CKO_CERTIFICATE;

	CK_ATTRIBUTE match[] = {
		{ CKA_CLASS, &klass, sizeof (klass) },
		{ CKA_INVALID, }
	};

	CK_OBJECT_HANDLE objects[16];
	CK_ULONG count;
	CK_ULONG i;

	setup (cu);

	count = find_objects (cu, match, objects, 16);
	CuAssertIntEquals (cu, 6, count);

	for (i = 0; i < count; i++)
		check_certificate (cu, objects[i]);

	teardown (cu);
}

static void
test_find_builtin (CuTest *cu)
{
	CK_OBJECT_CLASS klass = CKO_NETSCAPE_BUILTIN_ROOT_LIST;
	CK_BBOOL vtrue = CK_TRUE;
	CK_BBOOL vfalse = CK_FALSE;

	CK_ATTRIBUTE match[] = {
		{ CKA_CLASS, &klass, sizeof (klass) },
		{ CKA_TOKEN, &vtrue, sizeof (vtrue) },
		{ CKA_PRIVATE, &vfalse, sizeof (vfalse) },
		{ CKA_MODIFIABLE, &vfalse, sizeof (vfalse) },
		{ CKA_INVALID, }
	};

	CK_OBJECT_HANDLE objects[16];
	CK_ULONG count;

	setup (cu);

	count = find_objects (cu, match, objects, 16);
	CuAssertIntEquals (cu, 1, count);

	teardown (cu);
}

int
main (void)
{
	CuString *output = CuStringNew ();
	CuSuite* suite = CuSuiteNew ();
	int ret;

	setenv ("P11_KIT_STRICT", "1", 1);
	p11_debug_init ();
	/* p11_message_quiet (); */

	SUITE_ADD_TEST (suite, test_find_certificates);
	SUITE_ADD_TEST (suite, test_find_builtin);

	CuSuiteRun (suite);
	CuSuiteSummary (suite, output);
	CuSuiteDetails (suite, output);
	printf ("%s\n", output->buffer);
	ret = suite->failCount;
	CuSuiteDelete (suite);
	CuStringDelete (output);

	return ret;
}