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/* genkey.c - Key generation.
Copyright (C) 2000 Werner Koch (dd9jn)
Copyright (C) 2001, 2002, 2003, 2004 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 Lesser General Public License as
published by the Free Software Foundation; either version 2.1 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
Lesser 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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA. */
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "gpgme.h"
#include "context.h"
#include "ops.h"
typedef struct
{
struct _gpgme_op_genkey_result result;
/* The key parameters passed to the crypto engine. */
gpgme_data_t key_parameter;
} *op_data_t;
static void
release_op_data (void *hook)
{
op_data_t opd = (op_data_t) hook;
if (opd->result.fpr)
free (opd->result.fpr);
if (opd->key_parameter)
gpgme_data_release (opd->key_parameter);
}
gpgme_genkey_result_t
gpgme_op_genkey_result (gpgme_ctx_t ctx)
{
void *hook;
op_data_t opd;
gpgme_error_t err;
err = _gpgme_op_data_lookup (ctx, OPDATA_GENKEY, &hook, -1, NULL);
opd = hook;
if (err || !opd)
return NULL;
return &opd->result;
}
static gpgme_error_t
genkey_status_handler (void *priv, gpgme_status_code_t code, char *args)
{
gpgme_ctx_t ctx = (gpgme_ctx_t) priv;
gpgme_error_t err;
void *hook;
op_data_t opd;
/* Pipe the status code through the progress status handler. */
err = _gpgme_progress_status_handler (ctx, code, args);
if (err)
return err;
err = _gpgme_op_data_lookup (ctx, OPDATA_GENKEY, &hook, -1, NULL);
opd = hook;
if (err)
return err;
switch (code)
{
case GPGME_STATUS_KEY_CREATED:
if (args && *args)
{
if (*args == 'B' || *args == 'P')
opd->result.primary = 1;
if (*args == 'B' || *args == 'S')
opd->result.sub = 1;
if (args[1] == ' ')
{
if (opd->result.fpr)
free (opd->result.fpr);
opd->result.fpr = strdup (&args[2]);
if (!opd->result.fpr)
return gpg_error_from_errno (errno);
}
}
break;
case GPGME_STATUS_EOF:
/* FIXME: Should return some more useful error value. */
if (!opd->result.primary && !opd->result.sub)
return gpg_error (GPG_ERR_GENERAL);
break;
default:
break;
}
return 0;
}
static gpgme_error_t
get_key_parameter (const char *parms, gpgme_data_t *key_parameter)
{
const char *content;
const char *attrib;
const char *endtag;
/* Extract the key parameter from the XML structure. */
parms = strstr (parms, "<GnupgKeyParms ");
if (!parms)
return gpg_error (GPG_ERR_INV_VALUE);
content = strchr (parms, '>');
if (!content)
return gpg_error (GPG_ERR_INV_VALUE);
content++;
attrib = strstr (parms, "format=\"internal\"");
if (!attrib || attrib >= content)
return gpg_error (GPG_ERR_INV_VALUE);
endtag = strstr (content, "</GnupgKeyParms>");
/* FIXME: Check that there are no control statements inside. */
while (content[0] == '\n'
|| (content[0] == '\r' && content[1] == '\n'))
content++;
return gpgme_data_new_from_mem (key_parameter, content,
endtag - content, 1);
}
static gpgme_error_t
genkey_start (gpgme_ctx_t ctx, int synchronous, const char *parms,
gpgme_data_t pubkey, gpgme_data_t seckey)
{
gpgme_error_t err;
void *hook;
op_data_t opd;
err = _gpgme_op_reset (ctx, synchronous);
if (err)
return err;
err = _gpgme_op_data_lookup (ctx, OPDATA_GENKEY, &hook,
sizeof (*opd), release_op_data);
opd = hook;
if (err)
return err;
err = get_key_parameter (parms, &opd->key_parameter);
if (err)
return err;
_gpgme_engine_set_status_handler (ctx->engine, genkey_status_handler, ctx);
return _gpgme_engine_op_genkey (ctx->engine, opd->key_parameter,
ctx->use_armor, pubkey, seckey);
}
/* Generate a new keypair and add it to the keyring. PUBKEY and
SECKEY should be null for now. PARMS specifies what keys should be
generated. */
gpgme_error_t
gpgme_op_genkey_start (gpgme_ctx_t ctx, const char *parms,
gpgme_data_t pubkey, gpgme_data_t seckey)
{
return genkey_start (ctx, 0, parms, pubkey, seckey);
}
/* Generate a new keypair and add it to the keyring. PUBKEY and
SECKEY should be null for now. PARMS specifies what keys should be
generated. */
gpgme_error_t
gpgme_op_genkey (gpgme_ctx_t ctx, const char *parms, gpgme_data_t pubkey,
gpgme_data_t seckey)
{
gpgme_error_t err;
err = genkey_start (ctx, 1, parms, pubkey, seckey);
if (!err)
err = _gpgme_wait_one (ctx);
return err;
}
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