/*
**  Copyright (c) 2005-2008 Sendmail, Inc. and its suppliers.
**    All rights reserved.
**
**  Copyright (c) 2009, 2011, 2012, The Trusted Domain Project.
**    All rights reserved.
*/

#include "build-config.h"

/* system includes */
#include <sys/types.h>
#include <assert.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>

#ifdef USE_GNUTLS
# include <gnutls/gnutls.h>
#endif /* USE_GNUTLS */

/* libopendkim includes */
#include "../dkim.h"
#include "t-testdata.h"

#define	MAXHEADER	4096

#define SIG1 "v=1; a=rsa-sha1; c=relaxed/simple; d=example.com; s=test;\r\n\tt=1172620939; bh=ll/0h2aWgG+D3ewmE4Y3pY7Ukz8=; h=Received:Received:\r\n\t Received:From:To:Date:Subject:Message-ID; b=bj9kVUbnBYfe9sVzH9lT45\r\n\tTFKO3eQnDbXLfgmgu/b5QgxcnhT9ojnV2IAM4KUO8+hOo5sDEu5Co/0GASH0vHpSV4P\r\n\t377Iwew3FxvLpHsVbVKgXzoKD4QSbHRpWNxyL6LypaaqFa96YqjXuYXr0vpb88hticn\r\n\t6I16//WThMz8fMU="
#define SIG2 "v=1; a=ed25519-sha256; c=relaxed/relaxed; d=example.com;\r\n\ts=rfc8463; t=1172620939;\r\n\tbh=QVUr2KBvm7/Q/ustiYzOlFMN9G8IMqBzUX81BdpjSDI=;\r\n\th=Received:Received:Received:From:To:Date:Subject:Message-ID;\r\n\tb=PJWxH/BmbjT09GmNSVFBEcMJFpyga2kptY8s2YqB+PZ3Ctzfwr3yJbKgdRWIl7ZSR\r\n\t luDfrW9Uus555jRD7zbAw=="
#define SIG3 "v=1; a=rsa-sha256; c=relaxed/simple; d=example.com; s=test;\r\n\tt=1172620939; bh=yHBAX+3IwxTZIynBuB/5tlsBInJq9n8qz5fgAycHi80=;\r\n\th=Received:Received:Received:From:To:Date:Subject:Message-ID; b=hNR\r\n\tIcA7ZG6mZL9GPr5E9rJPQBy0DNnPSNAqYmtpbHJjhzWj3fsUKXDCEl8vJki6VuP0hDA\r\n\t4wRRJ6hkD0/u9iY2O+7xwAyuzkC3Z719CuGidnqlJt/1kJ4QW4KlcWJcj2v8SjD475G\r\n\tchVu0268Cz9PTJWSEqg/WZfWLQrji0gmy0="

/*
**  FINAL -- final signature processing
**
**  Parameters:
**  	dkim -- DKIM handle
**  	sigs -- array of DKIM_SIGINFO pointers
**  	nsigs -- how many sigs there were
**
**  Return value:
**  	DKIM_CBSTAT_CONTINUE (assuming no assertions fire).
*/

static DKIM_CBSTAT
final(DKIM *dkim, DKIM_SIGINFO **sigs, int nsigs)
{
	DKIM_STAT status;
	u_int flags;

	assert(sigs != NULL);
	assert(nsigs == 3);

	/* verify that all three signatures are okay */
	status = dkim_sig_process(dkim, sigs[0]);
	assert(status == DKIM_STAT_OK);
	flags = dkim_sig_getflags(sigs[0]);
	assert((flags & DKIM_SIGFLAG_PROCESSED) != 0);
	assert((flags & DKIM_SIGFLAG_IGNORE) == 0);
	assert((flags & DKIM_SIGFLAG_PASSED) != 0);
	assert(dkim_sig_getbh(sigs[0]) == DKIM_SIGBH_MATCH);

	status = dkim_sig_process(dkim, sigs[1]);
	assert(status == DKIM_STAT_OK);
	flags = dkim_sig_getflags(sigs[1]);
	assert((flags & DKIM_SIGFLAG_PROCESSED) != 0);
	assert((flags & DKIM_SIGFLAG_IGNORE) == 0);
	assert((flags & DKIM_SIGFLAG_PASSED) != 0);
	assert(dkim_sig_getbh(sigs[1]) == DKIM_SIGBH_MATCH);

	status = dkim_sig_process(dkim, sigs[2]);
	assert(status == DKIM_STAT_OK);
	flags = dkim_sig_getflags(sigs[2]);
	assert((flags & DKIM_SIGFLAG_PROCESSED) != 0);
	assert((flags & DKIM_SIGFLAG_IGNORE) == 0);
	assert((flags & DKIM_SIGFLAG_PASSED) != 0);
	assert(dkim_sig_getbh(sigs[2]) == DKIM_SIGBH_MATCH);

	return DKIM_CBSTAT_CONTINUE;
}

/*
**  MAIN -- program mainline
**
**  Parameters:
**  	The usual.
**
**  Return value:
**  	Exit status.
*/

int
main(int argc, char **argv)
{
#ifdef TEST_KEEP_FILES
	u_int flags;
#endif /* TEST_KEEP_FILES */
	DKIM_STAT status;
	DKIM *dkim;
	DKIM_LIB *lib;
	dkim_query_t qtype = DKIM_QUERY_FILE;
	char keyfile[] = KEYFILE;
	unsigned char hdr[MAXHEADER + 1];

#ifdef USE_GNUTLS
	(void) gnutls_global_init();
#endif /* USE_GNUTLS */

	/* instantiate the library */
	lib = dkim_init(NULL, NULL);
	assert(lib != NULL);

	if (!dkim_libfeature(lib, DKIM_FEATURE_ED25519) ||
	    !dkim_libfeature(lib, DKIM_FEATURE_SHA256))
	{
		printf("*** relaxed/simple rsa-sha1/ed25519-sha256/rsa-256 verifying SKIPPED\n");
		dkim_close(lib);
		return 0;
	}

	printf("*** relaxed/simple rsa-sha1/ed25519-sha256/rsa-256 verifying\n");

#ifdef TEST_KEEP_FILES
	/* set flags */
	flags = (DKIM_LIBFLAGS_TMPFILES|DKIM_LIBFLAGS_KEEPFILES);
	(void) dkim_options(lib, DKIM_OP_SETOPT, DKIM_OPTS_FLAGS, &flags,
	                    sizeof flags);
#endif /* TEST_KEEP_FILES */

	(void) dkim_options(lib, DKIM_OP_SETOPT, DKIM_OPTS_QUERYMETHOD,
	                    &qtype, sizeof qtype);
	(void) dkim_options(lib, DKIM_OP_SETOPT, DKIM_OPTS_QUERYINFO,
	                    keyfile, strlen(keyfile));

	dkim = dkim_verify(lib, JOBID, NULL, &status);
	assert(dkim != NULL);

	(void) dkim_set_final(lib, final);

	snprintf(hdr, sizeof hdr, "%s: %s", DKIM_SIGNHEADER, SIG1);
	status = dkim_header(dkim, hdr, strlen(hdr));
	assert(status == DKIM_STAT_OK);

	snprintf(hdr, sizeof hdr, "%s: %s", DKIM_SIGNHEADER, SIG2);
	status = dkim_header(dkim, hdr, strlen(hdr));
	assert(status == DKIM_STAT_OK);

	snprintf(hdr, sizeof hdr, "%s: %s", DKIM_SIGNHEADER, SIG3);
	status = dkim_header(dkim, hdr, strlen(hdr));
	assert(status == DKIM_STAT_OK);

	status = dkim_header(dkim, HEADER01, strlen(HEADER01));
	assert(status == DKIM_STAT_OK);

	status = dkim_header(dkim, HEADER02, strlen(HEADER02));
	assert(status == DKIM_STAT_OK);

	status = dkim_header(dkim, HEADER03, strlen(HEADER03));
	assert(status == DKIM_STAT_OK);

	status = dkim_header(dkim, HEADER04, strlen(HEADER04));
	assert(status == DKIM_STAT_OK);

	status = dkim_header(dkim, HEADER05, strlen(HEADER05));
	assert(status == DKIM_STAT_OK);

	status = dkim_header(dkim, HEADER06, strlen(HEADER06));
	assert(status == DKIM_STAT_OK);

	status = dkim_header(dkim, HEADER07, strlen(HEADER07));
	assert(status == DKIM_STAT_OK);

	status = dkim_header(dkim, HEADER08, strlen(HEADER08));
	assert(status == DKIM_STAT_OK);

	status = dkim_header(dkim, HEADER09, strlen(HEADER09));
	assert(status == DKIM_STAT_OK);

	status = dkim_eoh(dkim);
	assert(status == DKIM_STAT_OK);

	status = dkim_body(dkim, BODY00, strlen(BODY00));
	assert(status == DKIM_STAT_OK);

	status = dkim_body(dkim, BODY01, strlen(BODY01));
	assert(status == DKIM_STAT_OK);

	status = dkim_body(dkim, BODY01A, strlen(BODY01A));
	assert(status == DKIM_STAT_OK);
	status = dkim_body(dkim, BODY01B, strlen(BODY01B));
	assert(status == DKIM_STAT_OK);
	status = dkim_body(dkim, BODY01C, strlen(BODY01C));
	assert(status == DKIM_STAT_OK);
	status = dkim_body(dkim, BODY01D, strlen(BODY01D));
	assert(status == DKIM_STAT_OK);
	status = dkim_body(dkim, BODY01E, strlen(BODY01E));
	assert(status == DKIM_STAT_OK);

	status = dkim_body(dkim, BODY02, strlen(BODY02));
	assert(status == DKIM_STAT_OK);

	status = dkim_body(dkim, BODY03, strlen(BODY03));
	assert(status == DKIM_STAT_OK);

	status = dkim_body(dkim, BODY04, strlen(BODY04));
	assert(status == DKIM_STAT_OK);

	status = dkim_body(dkim, BODY03, strlen(BODY03));
	assert(status == DKIM_STAT_OK);

	status = dkim_body(dkim, BODY03, strlen(BODY03));
	assert(status == DKIM_STAT_OK);

	status = dkim_body(dkim, BODY05, strlen(BODY05));
	assert(status == DKIM_STAT_OK);

	status = dkim_body(dkim, BODY03, strlen(BODY03));
	assert(status == DKIM_STAT_OK);

	status = dkim_body(dkim, BODY03, strlen(BODY03));
	assert(status == DKIM_STAT_OK);

	status = dkim_eom(dkim, NULL);
	assert(status == DKIM_STAT_OK);

	status = dkim_free(dkim);
	assert(status == DKIM_STAT_OK);

	dkim_close(lib);

	return 0;
}
