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/*
* 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 of the License, or (at your option) version 3.
*
* 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 the program; if not, see <http://www.gnu.org/licenses/>
*
*
* Authors:
* Shreyas Srinivasan <sshreyas@novell.com>
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
#define DBUS_API_SUBJECT_TO_CHANGE 1
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <string.h>
#include <glib.h>
#include <e-shell.h>
#include <Evolution.h>
#include <dbus/dbus.h>
#include <dbus/dbus-glib-lowlevel.h>
#include <dbus/dbus-glib.h>
#include <NetworkManager/NetworkManager.h>
gboolean e_shell_dbus_initialise (EShell *shell);
static DBusConnection *dbus_connection = NULL;
static gboolean
reinit_dbus (gpointer user_data)
{
EShell *shell = user_data;
if (e_shell_dbus_initialise (shell))
return FALSE;
/* keep trying to re-establish dbus connection */
return TRUE;
}
static DBusHandlerResult
e_shell_network_monitor (DBusConnection *connection G_GNUC_UNUSED,
DBusMessage *message, gpointer user_data)
{
const gchar *object;
EShell *shell = user_data;
GNOME_Evolution_ShellState shell_state;
EShellLineStatus line_status;
DBusError error = DBUS_ERROR_INIT;
guint32 state;
object = dbus_message_get_path (message);
if (dbus_message_is_signal (message, DBUS_INTERFACE_LOCAL, "Disconnected") &&
object && !strcmp (object, DBUS_PATH_LOCAL)) {
dbus_connection_unref (dbus_connection);
dbus_connection = NULL;
g_timeout_add_seconds (3, reinit_dbus, shell);
return DBUS_HANDLER_RESULT_HANDLED;
}
if (!dbus_message_is_signal (message, NM_DBUS_INTERFACE, "StateChanged"))
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
dbus_message_get_args (
message, &error,
DBUS_TYPE_UINT32, &state,
DBUS_TYPE_INVALID);
if (dbus_error_is_set (&error)) {
g_warning ("%s", error.message);
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
line_status = e_shell_get_line_status (shell);
if (line_status == E_SHELL_LINE_STATUS_ONLINE && (state == NM_STATE_ASLEEP || state == NM_STATE_DISCONNECTED)) {
shell_state = GNOME_Evolution_FORCED_OFFLINE;
e_shell_set_line_status (shell, shell_state);
} else if (line_status == E_SHELL_LINE_STATUS_FORCED_OFFLINE && state == NM_STATE_CONNECTED) {
shell_state = GNOME_Evolution_USER_ONLINE;
e_shell_set_line_status (shell, shell_state);
}
return DBUS_HANDLER_RESULT_HANDLED;
}
static void
check_initial_state (EShell *shell)
{
DBusMessage *message = NULL, *response = NULL;
guint32 state = -1;
DBusError error = DBUS_ERROR_INIT;
message = dbus_message_new_method_call (NM_DBUS_SERVICE, NM_DBUS_PATH, NM_DBUS_INTERFACE, "state");
/* assuming this should be safe to call syncronously */
response = dbus_connection_send_with_reply_and_block (dbus_connection, message, 100, &error);
if (response)
dbus_message_get_args (response, &error, DBUS_TYPE_UINT32, &state, DBUS_TYPE_INVALID);
else {
g_warning ("%s \n", error.message);
dbus_error_free (&error);
return;
}
/* update the state only in the absence of network connection else let the old state prevail */
if (state == NM_STATE_DISCONNECTED)
e_shell_set_line_status (shell, GNOME_Evolution_FORCED_OFFLINE);
dbus_message_unref (message);
dbus_message_unref (response);
}
gboolean
e_shell_dbus_initialise (EShell *shell)
{
DBusError error = DBUS_ERROR_INIT;
if (dbus_connection != NULL)
return TRUE;
dbus_connection = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
if (dbus_connection == NULL) {
g_warning ("%s", error.message);
dbus_error_free (&error);
return FALSE;
}
dbus_connection_setup_with_g_main (dbus_connection, NULL);
dbus_connection_set_exit_on_disconnect (dbus_connection, FALSE);
if (!dbus_connection_add_filter (dbus_connection, e_shell_network_monitor, shell, NULL))
goto exception;
check_initial_state (shell);
dbus_bus_add_match (dbus_connection,
"type='signal',"
"interface='" NM_DBUS_INTERFACE "',"
"sender='" NM_DBUS_SERVICE "',"
"path='" NM_DBUS_PATH "'", &error);
if (dbus_error_is_set (&error)) {
g_warning ("%s", error.message);
dbus_error_free (&error);
goto exception;
}
return TRUE;
exception:
dbus_connection_unref (dbus_connection);
dbus_connection = NULL;
return FALSE;
}
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