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/*
* Copyright 2013 Canonical Ltd.
*
* Authors:
* Charles Kerr <charles.kerr@canonical.com>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3, as published
* by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY, 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, see <http://www.gnu.org/licenses/>.
*/
#include <glib.h>
#include "guest.h"
struct _IndicatorSessionGuestDbusPriv
{
GCancellable * cancellable;
Login1Manager * login1_manager;
Login1Seat * login1_seat;
DisplayManagerSeat * dm_seat;
gboolean guest_is_active;
gboolean guest_is_logged_in;
gboolean guest_is_allowed;
};
typedef IndicatorSessionGuestDbusPriv priv_t;
G_DEFINE_TYPE (IndicatorSessionGuestDbus,
indicator_session_guest_dbus,
INDICATOR_TYPE_SESSION_GUEST)
/***
****
***/
static void
set_guest_is_allowed_flag (IndicatorSessionGuestDbus * self, gboolean b)
{
priv_t * p = self->priv;
if (p->guest_is_allowed != b)
{
p->guest_is_allowed = b;
indicator_session_guest_notify_allowed (INDICATOR_SESSION_GUEST (self));
}
}
static void
set_guest_is_logged_in_flag (IndicatorSessionGuestDbus * self, gboolean b)
{
priv_t * p = self->priv;
if (p->guest_is_logged_in != b)
{
p->guest_is_logged_in = b;
indicator_session_guest_notify_logged_in (INDICATOR_SESSION_GUEST (self));
}
}
static void
set_guest_is_active_flag (IndicatorSessionGuestDbus * self, gboolean b)
{
priv_t * p = self->priv;
if (p->guest_is_active != b)
{
p->guest_is_active = b;
indicator_session_guest_notify_active (INDICATOR_SESSION_GUEST(self));
}
}
/***
****
***/
/* walk the sessions to see if guest is logged in or active */
static void
on_login1_manager_session_list_ready (GObject * o,
GAsyncResult * res,
gpointer gself)
{
GVariant * sessions;
GError * err;
sessions = NULL;
err = NULL;
login1_manager_call_list_sessions_finish (LOGIN1_MANAGER(o),
&sessions,
res,
&err);
if (err != NULL)
{
if (!g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED))
g_warning ("%s: %s", G_STRFUNC, err->message);
g_error_free (err);
}
else
{
const gchar * const current_seat_id = g_getenv ("XDG_SEAT");
const gchar * const current_session_id = g_getenv ("XDG_SESSION_ID");
gboolean is_logged_in = FALSE;
gboolean is_active = FALSE;
const gchar * session_id = NULL;
guint32 uid = 0;
const gchar * user_name = NULL;
const gchar * seat_id = NULL;
GVariantIter iter;
g_variant_iter_init (&iter, sessions);
while (g_variant_iter_loop (&iter, "(&su&s&so)", &session_id,
&uid,
&user_name,
&seat_id,
NULL))
{
gboolean is_current_session;
gboolean is_guest;
is_current_session = !g_strcmp0 (current_seat_id, seat_id)
&& !g_strcmp0 (current_session_id, session_id);
is_guest = g_str_has_prefix (user_name, "guest-")
&& (uid < 1000);
if (is_guest)
{
is_logged_in = TRUE;
is_active = is_current_session;
}
}
set_guest_is_logged_in_flag (gself, is_logged_in);
set_guest_is_active_flag (gself, is_active);
g_variant_unref (sessions);
}
}
static void
update_session_list (IndicatorSessionGuestDbus * self)
{
priv_t * p = self->priv;
if (p->login1_manager != NULL)
{
login1_manager_call_list_sessions (p->login1_manager,
p->cancellable,
on_login1_manager_session_list_ready,
self);
}
}
static void
set_login1_manager (IndicatorSessionGuestDbus * self,
Login1Manager * login1_manager)
{
priv_t * p = self->priv;
if (p->login1_manager != NULL)
{
g_signal_handlers_disconnect_by_data (p->login1_manager, self);
g_clear_object (&p->login1_manager);
}
if (login1_manager != NULL)
{
p->login1_manager = g_object_ref (login1_manager);
g_signal_connect_swapped (login1_manager, "session-new",
G_CALLBACK(update_session_list), self);
g_signal_connect_swapped (login1_manager, "session-removed",
G_CALLBACK(update_session_list), self);
update_session_list (self);
}
}
static void
set_login1_seat (IndicatorSessionGuestDbus * self,
Login1Seat * login1_seat)
{
priv_t * p = self->priv;
if (p->login1_seat != NULL)
{
g_signal_handlers_disconnect_by_data (p->login1_seat, self);
g_clear_object (&p->login1_seat);
}
if (login1_seat != NULL)
{
p->login1_seat = g_object_ref (login1_seat);
g_signal_connect_swapped (login1_seat, "notify::active-session",
G_CALLBACK(update_session_list), self);
update_session_list (self);
}
}
/***
****
***/
static void
on_switch_to_guest_done (GObject * o,
GAsyncResult * res,
gpointer unused G_GNUC_UNUSED)
{
GError * err;
err = NULL;
display_manager_seat_call_switch_to_guest_finish (DISPLAY_MANAGER_SEAT(o),
res,
&err);
if (err != NULL)
{
if (!g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED))
g_warning ("%s %s: %s", G_STRLOC, G_STRFUNC, err->message);
g_error_free (err);
}
}
static void
my_switch_to_guest (IndicatorSessionGuest * guest)
{
IndicatorSessionGuestDbus * self = INDICATOR_SESSION_GUEST_DBUS(guest);
g_return_if_fail (self != NULL);
g_return_if_fail (self->priv->dm_seat != NULL);
display_manager_seat_call_switch_to_guest (self->priv->dm_seat,
"",
self->priv->cancellable,
on_switch_to_guest_done,
self);
}
static void
on_notify_has_guest_account (DisplayManagerSeat * dm_seat,
GParamSpec * pspec G_GNUC_UNUSED,
IndicatorSessionGuestDbus * self)
{
gboolean guest_exists = display_manager_seat_get_has_guest_account (dm_seat);
set_guest_is_allowed_flag (self, guest_exists);
}
static void
set_display_manager_seat (IndicatorSessionGuestDbus * self,
DisplayManagerSeat * dm_seat)
{
priv_t * p = self->priv;
if (p->dm_seat != NULL)
{
g_signal_handlers_disconnect_by_data (p->dm_seat, self);
g_clear_object (&p->dm_seat);
}
if (dm_seat != NULL)
{
p->dm_seat = g_object_ref (dm_seat);
g_signal_connect (dm_seat, "notify::has-guest-account",
G_CALLBACK(on_notify_has_guest_account), self);
on_notify_has_guest_account (dm_seat, NULL, self);
}
}
/***
**** IndiatorSessionGuest Virtual Functions
***/
static gboolean
my_is_allowed (IndicatorSessionGuest * self)
{
g_return_val_if_fail (INDICATOR_IS_SESSION_GUEST_DBUS(self), FALSE);
return INDICATOR_SESSION_GUEST_DBUS(self)->priv->guest_is_allowed;
}
static gboolean
my_is_logged_in (IndicatorSessionGuest * self)
{
g_return_val_if_fail (INDICATOR_IS_SESSION_GUEST_DBUS(self), FALSE);
return INDICATOR_SESSION_GUEST_DBUS(self)->priv->guest_is_logged_in;
}
static gboolean
my_is_active (IndicatorSessionGuest * self)
{
g_return_val_if_fail (INDICATOR_IS_SESSION_GUEST_DBUS(self), FALSE);
return INDICATOR_SESSION_GUEST_DBUS(self)->priv->guest_is_active;
}
/***
**** GObject Virtual Functions
***/
static void
my_dispose (GObject * o)
{
IndicatorSessionGuestDbus * self = INDICATOR_SESSION_GUEST_DBUS (o);
if (self->priv->cancellable != NULL)
{
g_cancellable_cancel (self->priv->cancellable);
g_clear_object (&self->priv->cancellable);
}
set_login1_seat (self, NULL);
set_login1_manager (self, NULL);
set_display_manager_seat (self, NULL);
G_OBJECT_CLASS (indicator_session_guest_dbus_parent_class)->dispose (o);
}
/***
**** Instantiation
***/
static void
indicator_session_guest_dbus_class_init (IndicatorSessionGuestDbusClass * klass)
{
GObjectClass * object_class;
IndicatorSessionGuestClass * guest_class;
object_class = G_OBJECT_CLASS (klass);
object_class->dispose = my_dispose;
guest_class = INDICATOR_SESSION_GUEST_CLASS (klass);
guest_class->is_allowed = my_is_allowed;
guest_class->is_logged_in = my_is_logged_in;
guest_class->is_active = my_is_active;
guest_class->switch_to_guest = my_switch_to_guest;
g_type_class_add_private (klass, sizeof (IndicatorSessionGuestDbusPriv));
}
static void
indicator_session_guest_dbus_init (IndicatorSessionGuestDbus * self)
{
priv_t * p;
p = G_TYPE_INSTANCE_GET_PRIVATE (self,
INDICATOR_TYPE_SESSION_GUEST_DBUS,
IndicatorSessionGuestDbusPriv);
p->cancellable = g_cancellable_new ();
self->priv = p;
}
/***
**** Public
***/
IndicatorSessionGuest *
indicator_session_guest_dbus_new (void)
{
gpointer o = g_object_new (INDICATOR_TYPE_SESSION_GUEST_DBUS, NULL);
return INDICATOR_SESSION_GUEST (o);
}
void
indicator_session_guest_dbus_set_proxies (IndicatorSessionGuestDbus * self,
Login1Manager * login1_manager,
Login1Seat * login1_seat,
DisplayManagerSeat * dm_seat)
{
g_return_if_fail (INDICATOR_IS_SESSION_GUEST_DBUS(self));
set_login1_manager (self, login1_manager);
set_login1_seat (self, login1_seat);
set_display_manager_seat (self, dm_seat);
}
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