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/* vim:set et sw=2 cin cino=t0,f0,(0,{s,>2s,n-s,^-s,e2s: */
/*
* Copyright © 2019 Collabora Ltd.
*
* SPDX-License-Identifier: LGPL-2.0+
*
* This library 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 of the License, or (at your option) any later version.
*
* This library 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 library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#include "config.h"
#include "ostree-sign-dummy.h"
#include <string.h>
#undef G_LOG_DOMAIN
#define G_LOG_DOMAIN "OSTreeSign"
#define OSTREE_SIGN_DUMMY_NAME "dummy"
#define OSTREE_SIGN_METADATA_DUMMY_KEY "ostree.sign.dummy"
#define OSTREE_SIGN_METADATA_DUMMY_TYPE "aay"
#define OSTREE_SIGN_DUMMY_SIGNATURE "dummysign"
struct _OstreeSignDummy
{
GObject parent;
gchar *signature_ascii;
};
static void
ostree_sign_dummy_iface_init (OstreeSignInterface *self);
G_DEFINE_TYPE_WITH_CODE (OstreeSignDummy, ostree_sign_dummy, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (OSTREE_TYPE_SIGN, ostree_sign_dummy_iface_init));
static void
ostree_sign_dummy_iface_init (OstreeSignInterface *self)
{
g_debug ("%s enter", __FUNCTION__);
self->get_name = ostree_sign_dummy_get_name;
self->data = ostree_sign_dummy_data;
self->data_verify = ostree_sign_dummy_data_verify;
self->metadata_key = ostree_sign_dummy_metadata_key;
self->metadata_format = ostree_sign_dummy_metadata_format;
self->set_sk = ostree_sign_dummy_set_key;
self->set_pk = ostree_sign_dummy_set_key;
}
static void
ostree_sign_dummy_class_init (OstreeSignDummyClass *self)
{
g_debug ("%s enter", __FUNCTION__);
}
static void
ostree_sign_dummy_init (OstreeSignDummy *self)
{
g_debug ("%s enter", __FUNCTION__);
self->signature_ascii = g_strdup(OSTREE_SIGN_DUMMY_SIGNATURE);
}
gboolean ostree_sign_dummy_set_key (OstreeSign *self, GVariant *key, GError **error)
{
g_debug ("%s enter", __FUNCTION__);
OstreeSignDummy *sign = ostree_sign_dummy_get_instance_private(OSTREE_SIGN_DUMMY(self));
if (sign->signature_ascii != NULL)
g_free(sign->signature_ascii);
sign->signature_ascii = g_variant_dup_string (key, 0);
return TRUE;
}
gboolean ostree_sign_dummy_data (OstreeSign *self,
GBytes *data,
GBytes **signature,
GCancellable *cancellable,
GError **error)
{
g_debug ("%s enter", __FUNCTION__);
g_return_val_if_fail (OSTREE_IS_SIGN (self), FALSE);
OstreeSignDummy *sign = ostree_sign_dummy_get_instance_private(OSTREE_SIGN_DUMMY(self));
*signature = g_bytes_new (sign->signature_ascii, strlen(sign->signature_ascii));
return TRUE;
}
const gchar * ostree_sign_dummy_get_name (OstreeSign *self)
{
g_debug ("%s enter", __FUNCTION__);
g_return_val_if_fail (OSTREE_IS_SIGN (self), FALSE);
return OSTREE_SIGN_DUMMY_NAME;
}
const gchar * ostree_sign_dummy_metadata_key (OstreeSign *self)
{
g_debug ("%s enter", __FUNCTION__);
return OSTREE_SIGN_METADATA_DUMMY_KEY;
}
const gchar * ostree_sign_dummy_metadata_format (OstreeSign *self)
{
g_debug ("%s enter", __FUNCTION__);
return OSTREE_SIGN_METADATA_DUMMY_TYPE;
}
gboolean ostree_sign_dummy_data_verify (OstreeSign *self,
GBytes *data,
GVariant *signatures,
GError **error)
{
g_debug ("%s enter", __FUNCTION__);
g_return_val_if_fail (OSTREE_IS_SIGN (self), FALSE);
g_return_val_if_fail (data != NULL, FALSE);
OstreeSignDummy *sign = ostree_sign_dummy_get_instance_private(OSTREE_SIGN_DUMMY(self));
gboolean ret = FALSE;
if (signatures == NULL)
{
g_set_error_literal (error,
G_IO_ERROR, G_IO_ERROR_FAILED,
"signature: dummy: commit have no signatures of my type");
goto err;
}
if (!g_variant_is_of_type (signatures, (GVariantType *) OSTREE_SIGN_METADATA_DUMMY_TYPE))
{
g_set_error_literal (error,
G_IO_ERROR, G_IO_ERROR_FAILED,
"signature: dummy: wrong type passed for verification");
goto err;
}
for (gsize i = 0; i < g_variant_n_children(signatures); i++)
{
g_autoptr (GVariant) child = g_variant_get_child_value (signatures, i);
g_autoptr (GBytes) signature = g_variant_get_data_as_bytes(child);
gsize sign_size = 0;
g_bytes_get_data (signature, &sign_size);
g_autofree gchar *sign_ascii = g_strndup(g_bytes_get_data (signature, NULL), sign_size);
g_debug("Read signature %d: %s", (gint)i, sign_ascii);
if (!g_strcmp0(sign_ascii, sign->signature_ascii))
ret = TRUE;
}
if (ret == FALSE && *error == NULL)
g_set_error_literal (error,
G_IO_ERROR, G_IO_ERROR_FAILED,
"signature: dummy: incorrect signature");
err:
return ret;
}
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