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/*
* gnome-keyring
*
* Copyright (C) 2008 Stefan Walter
*
* This program 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.
*
* This program 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, see
* <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gkd-secret-dispatch.h"
#include "gkd-secret-error.h"
#include "gkd-secret-secret.h"
#include "gkd-secret-service.h"
#include "gkd-secret-session.h"
#include "egg/egg-secure-memory.h"
#include <glib-object.h>
#include <string.h>
GkdSecretSecret *
gkd_secret_secret_new (GkdSecretSession *session,
gconstpointer parameter,
gsize n_parameter,
gconstpointer value,
gsize n_value)
{
return gkd_secret_secret_new_take_memory (session,
g_memdup (parameter, n_parameter),
n_parameter,
g_memdup (value, n_value),
n_value);
}
static void
destroy_with_owned_memory (gpointer data)
{
GkdSecretSecret *secret = data;
g_free (secret->parameter);
g_free (secret->value);
}
GkdSecretSecret*
gkd_secret_secret_new_take_memory (GkdSecretSession *session,
gpointer parameter, gsize n_parameter,
gpointer value, gsize n_value)
{
GkdSecretSecret *secret;
g_return_val_if_fail (GKD_SECRET_IS_SESSION (session), NULL);
secret = g_slice_new0 (GkdSecretSecret);
secret->session = g_object_ref (session);
secret->parameter = parameter;
secret->n_parameter = n_parameter;
secret->value = value;
secret->n_value = n_value;
secret->destroy_func = destroy_with_owned_memory;
secret->destroy_data = secret;
return secret;
}
GkdSecretSecret*
gkd_secret_secret_parse (GkdSecretService *service,
const char *sender,
GVariant *variant,
GError **error)
{
GkdSecretSecret *secret = NULL;
GkdSecretSession *session;
const char *parameter, *value, *path, *content_type;
gsize n_parameter, n_value;
GVariant *parameter_variant, *value_variant;
g_return_val_if_fail (GKD_SECRET_IS_SERVICE (service), NULL);
g_return_val_if_fail (variant, NULL);
g_return_val_if_fail (sender, NULL);
g_variant_get (variant, "(&o^&ay^&ay&s)", &path, NULL, NULL, &content_type);
/* parameter */
parameter_variant = g_variant_get_child_value (variant, 1);
parameter = g_variant_get_fixed_array (parameter_variant, &n_parameter, sizeof (guint8));
/* value */
value_variant = g_variant_get_child_value (variant, 2);
value = g_variant_get_fixed_array (value_variant, &n_value, sizeof (guint8));
/* Try to lookup the session */
session = gkd_secret_service_lookup_session (service, path, sender);
if (session == NULL) {
g_set_error_literal (error, GKD_SECRET_ERROR,
GKD_SECRET_ERROR_NO_SESSION,
"The session wrapping the secret does not exist");
goto out;
}
secret = g_slice_new0 (GkdSecretSecret);
secret->session = g_object_ref (session);
secret->parameter = g_strndup (parameter, n_parameter);
secret->n_parameter = n_parameter;
secret->value = g_strndup (value, n_value);
secret->n_value = n_value;
out:
g_variant_unref (parameter_variant);
g_variant_unref (value_variant);
return secret;
}
GVariant *
gkd_secret_secret_append (GkdSecretSecret *secret)
{
GVariantBuilder builder;
const gchar *content_type = "text/plain";
const gchar *path;
GVariant *parameter, *value;
path = gkd_secret_dispatch_get_object_path (GKD_SECRET_DISPATCH (secret->session));
g_return_val_if_fail (path, NULL);
g_variant_builder_init (&builder, G_VARIANT_TYPE ("ay"));
g_variant_builder_add (&builder, "y", secret->parameter);
parameter = g_variant_builder_end (&builder);
g_variant_builder_init (&builder, G_VARIANT_TYPE ("ay"));
g_variant_builder_add (&builder, "y", secret->value);
value = g_variant_builder_end (&builder);
return g_variant_new ("(o@ay@ays)", path, parameter, value, content_type);
}
void
gkd_secret_secret_free (gpointer data)
{
GkdSecretSecret *secret;
if (!data)
return;
secret = data;
/*
* These are not usually actual plain text secrets. However in
* the case that they are, we want to clear them from memory.
*
* This is not foolproof in any way. If they're plaintext, they would
* have been sent over DBus, and through all sorts of processes.
*/
egg_secure_clear (secret->parameter, secret->n_parameter);
egg_secure_clear (secret->value, secret->n_value);
g_object_unref (secret->session);
/* Call the destructor of memory */
if (secret->destroy_func)
(secret->destroy_func) (secret->destroy_data);
g_slice_free (GkdSecretSecret, secret);
}
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