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/*
* Copyright (C) 2009 Red Hat, Inc.
* Copyright (C) 2012-2021 MATE Developers
*
* 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* Author: David Zeuthen <davidz@redhat.com>
*/
#include "config.h"
#include <string.h>
#include <glib/gi18n.h>
#include "polkitmatelistener.h"
#include "polkitmateauthenticator.h"
struct _PolkitMateListener
{
PolkitAgentListener parent_instance;
/* we support multiple authenticators - they are simply queued up */
GList *authenticators;
PolkitMateAuthenticator *active_authenticator;
};
struct _PolkitMateListenerClass
{
PolkitAgentListenerClass parent_class;
};
static void polkit_mate_listener_initiate_authentication (PolkitAgentListener *listener,
const gchar *action_id,
const gchar *message,
const gchar *icon_name,
PolkitDetails *details,
const gchar *cookie,
GList *identities,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data);
static gboolean polkit_mate_listener_initiate_authentication_finish (PolkitAgentListener *listener,
GAsyncResult *res,
GError **error);
G_DEFINE_TYPE (PolkitMateListener, polkit_mate_listener, POLKIT_AGENT_TYPE_LISTENER);
static void
polkit_mate_listener_init (PolkitMateListener *listener)
{
}
static void
polkit_mate_listener_finalize (GObject *object)
{
if (G_OBJECT_CLASS (polkit_mate_listener_parent_class)->finalize != NULL)
G_OBJECT_CLASS (polkit_mate_listener_parent_class)->finalize (object);
}
static void
polkit_mate_listener_class_init (PolkitMateListenerClass *klass)
{
GObjectClass *gobject_class;
PolkitAgentListenerClass *listener_class;
gobject_class = G_OBJECT_CLASS (klass);
listener_class = POLKIT_AGENT_LISTENER_CLASS (klass);
gobject_class->finalize = polkit_mate_listener_finalize;
listener_class->initiate_authentication = polkit_mate_listener_initiate_authentication;
listener_class->initiate_authentication_finish = polkit_mate_listener_initiate_authentication_finish;
}
PolkitAgentListener *
polkit_mate_listener_new (void)
{
return POLKIT_AGENT_LISTENER (g_object_new (POLKIT_MATE_TYPE_LISTENER, NULL));
}
typedef struct
{
PolkitMateListener *listener;
PolkitMateAuthenticator *authenticator;
GTask *task;
GCancellable *cancellable;
gulong cancel_id;
} AuthData;
static AuthData *
auth_data_new (PolkitMateListener *listener,
PolkitMateAuthenticator *authenticator,
GTask *task,
GCancellable *cancellable)
{
AuthData *data;
data = g_new0 (AuthData, 1);
data->listener = g_object_ref (listener);
data->authenticator = g_object_ref (authenticator);
data->task = g_object_ref (task);
data->cancellable = g_object_ref (cancellable);
return data;
}
static void
auth_data_free (AuthData *data)
{
g_object_unref (data->listener);
g_object_unref (data->authenticator);
g_object_unref (data->task);
if (data->cancellable != NULL && data->cancel_id > 0)
g_signal_handler_disconnect (data->cancellable, data->cancel_id);
g_object_unref (data->cancellable);
g_free (data);
}
static void
maybe_initiate_next_authenticator (PolkitMateListener *listener)
{
if (listener->active_authenticator == NULL && listener->authenticators != NULL)
{
polkit_mate_authenticator_initiate (POLKIT_MATE_AUTHENTICATOR (listener->authenticators->data));
listener->active_authenticator = listener->authenticators->data;
}
}
static void
authenticator_completed (PolkitMateAuthenticator *authenticator,
gboolean gained_authorization,
gboolean dismissed,
gpointer user_data)
{
AuthData *data = user_data;
data->listener->authenticators = g_list_remove (data->listener->authenticators, authenticator);
if (authenticator == data->listener->active_authenticator)
data->listener->active_authenticator = NULL;
g_object_unref (authenticator);
if (dismissed)
{
g_task_return_new_error (data->task,
POLKIT_ERROR,
POLKIT_ERROR_CANCELLED,
_("Authentication dialog was dismissed by the user"));
}
g_task_return_boolean (data->task, TRUE);
g_object_unref (data->task);
maybe_initiate_next_authenticator (data->listener);
auth_data_free (data);
}
static void
cancelled_cb (GCancellable *cancellable,
gpointer user_data)
{
AuthData *data = user_data;
polkit_mate_authenticator_cancel (data->authenticator);
}
static void
polkit_mate_listener_initiate_authentication (PolkitAgentListener *agent_listener,
const gchar *action_id,
const gchar *message,
const gchar *icon_name,
PolkitDetails *details,
const gchar *cookie,
GList *identities,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
PolkitMateListener *listener = POLKIT_MATE_LISTENER (agent_listener);
GTask *task;
PolkitMateAuthenticator *authenticator;
AuthData *data;
task = g_task_new (G_OBJECT (listener),
NULL,
callback,
user_data);
g_task_set_source_tag (task,
polkit_mate_listener_initiate_authentication);
authenticator = polkit_mate_authenticator_new (action_id,
message,
icon_name,
details,
cookie,
identities);
if (authenticator == NULL)
{
g_task_return_new_error (task,
POLKIT_ERROR,
POLKIT_ERROR_FAILED,
"Error creating authentication object");
g_object_unref (task);
goto out;
}
data = auth_data_new (listener, authenticator, task, cancellable);
g_signal_connect (authenticator,
"completed",
G_CALLBACK (authenticator_completed),
data);
if (cancellable != NULL)
{
data->cancel_id = g_signal_connect (cancellable,
"cancelled",
G_CALLBACK (cancelled_cb),
data);
}
listener->authenticators = g_list_append (listener->authenticators, authenticator);
maybe_initiate_next_authenticator (listener);
out:
;
}
static gboolean
polkit_mate_listener_initiate_authentication_finish (PolkitAgentListener *listener,
GAsyncResult *res,
GError **error)
{
GTask *task = G_TASK (res);
g_warn_if_fail (g_task_get_source_tag (task) == polkit_mate_listener_initiate_authentication);
if (g_task_propagate_pointer (task, error) == NULL) {
return FALSE;
}
return TRUE;
}
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