/* t-verify.c - Regression test.
   Copyright (C) 2000 Werner Koch (dd9jn)
   Copyright (C) 2001, 2002, 2003 g10 Code GmbH

   This file is part of GPGME.
 
   GPGME 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 2 of the License, or
   (at your option) any later version.
 
   GPGME 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 GPGME; if not, write to the Free Software Foundation,
   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

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

#include <gpgme.h>


#define fail_if_err(err)					\
  do								\
    {								\
      if (err)							\
        {							\
          fprintf (stderr, "%s:%d: gpgme_error_t %s\n",		\
                   __FILE__, __LINE__, gpgme_strerror (err));   \
          exit (1);						\
        }							\
    }								\
  while (0)


static const char test_text1[] = "Just GNU it!\n";
static const char test_text1f[]= "Just GNU it?\n";
static const char test_sig1[] =
#if 0
"-----BEGIN PGP SIGNATURE-----\n"
"\n"
"iEYEABECAAYFAjoKgjIACgkQLXJ8x2hpdzQMSwCeO/xUrhysZ7zJKPf/FyXA//u1\n"
"ZgIAn0204PBR7yxSdQx6CFxugstNqmRv\n"
"=yku6\n"
"-----END PGP SIGNATURE-----\n"
#elif 0
"-----BEGIN PGP SIGNATURE-----\n"
"Version: GnuPG v1.0.4-2 (GNU/Linux)\n"
"Comment: For info see http://www.gnupg.org\n"
"\n"
"iJcEABECAFcFAjoS8/E1FIAAAAAACAAkZm9vYmFyLjF0aGlzIGlzIGEgbm90YXRp\n"
"b24gZGF0YSB3aXRoIDIgbGluZXMaGmh0dHA6Ly93d3cuZ3Uub3JnL3BvbGljeS8A\n"
"CgkQLXJ8x2hpdzQLyQCbBW/fgU8ZeWSlWPM1F8umHX17bAAAoIfSNDSp5zM85XcG\n"
"iwxMrf+u8v4r\n"
"=88Zo\n"
"-----END PGP SIGNATURE-----\n"
#elif 1
"-----BEGIN PGP SIGNATURE-----\n"
"\n"
"iN0EABECAJ0FAjoS+i9FFIAAAAAAAwA5YmFyw7bDpMO8w58gZGFzIHdhcmVuIFVt\n"
"bGF1dGUgdW5kIGpldHp0IGVpbiBwcm96ZW50JS1aZWljaGVuNRSAAAAAAAgAJGZv\n"
"b2Jhci4xdGhpcyBpcyBhIG5vdGF0aW9uIGRhdGEgd2l0aCAyIGxpbmVzGhpodHRw\n"
"Oi8vd3d3Lmd1Lm9yZy9wb2xpY3kvAAoJEC1yfMdoaXc0JBIAoIiLlUsvpMDOyGEc\n"
"dADGKXF/Hcb+AKCJWPphZCphduxSvrzH0hgzHdeQaA==\n"
"=nts1\n"
"-----END PGP SIGNATURE-----\n"
#endif
;
static const char test_sig2[] =
"-----BEGIN PGP MESSAGE-----\n"
"\n"
"owGbwMvMwCSoW1RzPCOz3IRxjXQSR0lqcYleSUWJTZOvjVdpcYmCu1+oQmaJIleH\n"
"GwuDIBMDGysTSIqBi1MApi+nlGGuwDeHao53HBr+FoVGP3xX+kvuu9fCMJvl6IOf\n"
"y1kvP4y+8D5a11ang0udywsA\n"
"=Crq6\n"
"-----END PGP MESSAGE-----\n";


static void
check_result (gpgme_verify_result_t result, int summary, char *fpr,
	      gpgme_error_t status, int notation)
{
  gpgme_signature_t sig;

  sig = result->signatures;
  if (!sig || sig->next)
    {
      fprintf (stderr, "%s:%i: Unexpected number of signatures\n",
	       __FILE__, __LINE__);
      exit (1);
    }
  if (sig->summary != summary)
    {
      fprintf (stderr, "%s:%i: Unexpected signature summary: 0x%x\n",
	       __FILE__, __LINE__, sig->summary);
      exit (1);
    }
  if (strcmp (sig->fpr, fpr))
    {
      fprintf (stderr, "%s:%i: Unexpected fingerprint: %s\n",
	       __FILE__, __LINE__, sig->fpr);
      exit (1);
    }
  if (sig->status != status)
    {
      fprintf (stderr, "%s:%i: Unexpected signature status: %s\n",
	       __FILE__, __LINE__, gpgme_strerror (sig->status));
      exit (1);
    }
  if (notation)
    {
      if (!sig->notations
	  || strcmp (sig->notations->name, "bar")
	  || strcmp (sig->notations->value, "\xc3\xb6\xc3\xa4\xc3\xbc\xc3\x9f"
		     " das waren Umlaute und jetzt ein prozent%-Zeichen")
	  || !sig->notations->next
	  || strcmp (sig->notations->next->name, "foobar.1")
	  || strcmp (sig->notations->next->value,
		     "this is a notation data with 2 lines")
	  || !sig->notations->next->next
	  || sig->notations->next->next->name != NULL
	  || strcmp (sig->notations->next->next->value,
		     "http://www.gu.org/policy/")
	  || sig->notations->next->next->next)
	{
	  fprintf (stderr, "%s:%i: Unexpected notation data\n",
		   __FILE__, __LINE__);
	  exit (1);
	}
    }
  if (sig->wrong_key_usage)
    {
      fprintf (stderr, "%s:%i: Unexpectedly wrong key usage\n",
	       __FILE__, __LINE__);
      exit (1);
    }
  if (sig->validity != GPGME_VALIDITY_UNKNOWN)
    {
      fprintf (stderr, "%s:%i: Unexpected validity: %i\n",
	       __FILE__, __LINE__, sig->validity);
      exit (1);
    }
  if (sig->validity_reason != GPGME_No_Error)
    {
      fprintf (stderr, "%s:%i: Unexpected validity reason: %s\n",
	       __FILE__, __LINE__, gpgme_strerror (sig->validity_reason));
      exit (1);
    }
}


int 
main (int argc, char *argv[])
{
  gpgme_ctx_t ctx;
  gpgme_error_t err;
  gpgme_data_t sig, text;
  gpgme_verify_result_t result;

  err = gpgme_new (&ctx);
  fail_if_err (err);

  /* Checking a valid message.  */
  err = gpgme_data_new_from_mem (&text, test_text1, strlen (test_text1), 0);
  fail_if_err (err);
  err = gpgme_data_new_from_mem (&sig, test_sig1, strlen (test_sig1), 0);
  fail_if_err (err);
  err = gpgme_op_verify (ctx, sig, text, NULL);
  fail_if_err (err);
  result = gpgme_op_verify_result (ctx);
  check_result (result, 0, "A0FF4590BB6122EDEF6E3C542D727CC768697734",
		GPGME_No_Error, 1);

  /* Checking a manipulated message.  */
  gpgme_data_release (text);
  err = gpgme_data_new_from_mem (&text, test_text1f, strlen (test_text1f), 0);
  fail_if_err (err);
  gpgme_data_seek (sig, 0, SEEK_SET);
  err = gpgme_op_verify (ctx, sig, text, NULL);
  fail_if_err (err);
  result = gpgme_op_verify_result (ctx);
  check_result (result, GPGME_SIGSUM_RED, "2D727CC768697734",
		GPGME_Bad_Signature, 0);

  /* Checking a normal signature.  */
  gpgme_data_release (sig);
  gpgme_data_release (text);
  err = gpgme_data_new_from_mem (&sig, test_sig2, strlen (test_sig2), 0);
  fail_if_err (err);
  err = gpgme_data_new (&text);
  fail_if_err (err);
  err = gpgme_op_verify (ctx, sig, NULL, text);
  fail_if_err (err);
  result = gpgme_op_verify_result (ctx);
  check_result (result, 0, "A0FF4590BB6122EDEF6E3C542D727CC768697734",
		GPGME_No_Error, 0);

  gpgme_data_release (sig);
  gpgme_data_release (text);
  gpgme_release (ctx);
  return 0;
}