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/* delkey.c - delete keys
* Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG 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.
*
* GnuPG 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
#include <ctype.h>
#include "options.h"
#include "packet.h"
#include "errors.h"
#include "iobuf.h"
#include "keydb.h"
#include <gcrypt.h>
#include "util.h"
#include "main.h"
#include "trustdb.h"
#include "filter.h"
#include "ttyio.h"
#include "status.h"
#include "i18n.h"
/****************
* Delete a public or secret key from a keyring.
*/
int
delete_key( const char *username, int secret )
{
int rc = 0;
KBNODE keyblock = NULL;
KBNODE node;
KBPOS kbpos;
PKT_public_key *pk = NULL;
PKT_secret_key *sk = NULL;
u32 keyid[2];
int okay=0;
int yes;
/* search the userid */
rc = secret? find_secret_keyblock_byname( &keyblock, username )
: find_keyblock_byname( &keyblock, username );
if( rc ) {
log_error(_("%s: user not found: %s\n"), username, gpg_errstr(rc) );
write_status_text( STATUS_DELETE_PROBLEM, "1" );
goto leave;
}
/* get the keyid from the keyblock */
node = find_kbnode( keyblock, secret? PKT_SECRET_KEY:PKT_PUBLIC_KEY );
if( !node ) {
log_error("Oops; key not found anymore!\n");
rc = GPGERR_GENERAL;
goto leave;
}
if( secret ) {
sk = node->pkt->pkt.secret_key;
keyid_from_sk( sk, keyid );
}
else {
pk = node->pkt->pkt.public_key;
keyid_from_pk( pk, keyid );
rc = seckey_available( keyid );
if( !rc ) {
log_error(_(
"there is a secret key for this public key!\n"));
log_info(_(
"use option \"--delete-secret-key\" to delete it first.\n"));
write_status_text( STATUS_DELETE_PROBLEM, "2" );
rc = -1;
}
else if( rc != GPGERR_NO_SECKEY ) {
log_error("%s: get secret key: %s\n", username, gpg_errstr(rc) );
}
else
rc = 0;
}
if( rc )
rc = 0;
else if( opt.batch && secret )
log_error(_("can't do that in batchmode\n"));
else if( opt.batch && opt.answer_yes )
okay++;
else if( opt.batch )
log_error(_("can't do that in batchmode without \"--yes\"\n"));
else {
char *p;
size_t n;
if( secret )
tty_printf("sec %4u%c/%08lX %s ",
nbits_from_sk( sk ),
pubkey_letter( sk->pubkey_algo ),
keyid[1], datestr_from_sk(sk) );
else
tty_printf("pub %4u%c/%08lX %s ",
nbits_from_pk( pk ),
pubkey_letter( pk->pubkey_algo ),
keyid[1], datestr_from_pk(pk) );
p = get_user_id( keyid, &n );
tty_print_utf8_string( p, n );
gcry_free(p);
tty_printf("\n\n");
yes = cpr_get_answer_is_yes( secret? "delete_key.secret.okay"
: "delete_key.okay",
_("Delete this key from the keyring? "));
if( !cpr_enabled() && secret && yes ) {
/* I think it is not required to check a passphrase; if
* the user is so stupid as to let others access his secret keyring
* (and has no backup) - it is up him to read some very
* basic texts about security.
*/
yes = cpr_get_answer_is_yes("delete_key.secret.okay",
_("This is a secret key! - really delete? "));
}
if( yes )
okay++;
}
if( okay ) {
#warning MUST FIX THIS!!!
rc = delete_keyblock( &kbpos );
if( rc ) {
log_error("delete_keyblock failed: %s\n", gpg_errstr(rc) );
goto leave;
}
}
leave:
release_kbnode( keyblock );
return rc;
}
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