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-rw-r--r--modules/network-manager/evolution-network-manager.c245
1 files changed, 245 insertions, 0 deletions
diff --git a/modules/network-manager/evolution-network-manager.c b/modules/network-manager/evolution-network-manager.c
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+++ b/modules/network-manager/evolution-network-manager.c
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+/*
+ * evolution-network-manager.c
+ *
+ * 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/>
+ *
+ */
+
+#include <dbus/dbus.h>
+#include <dbus/dbus-glib.h>
+#include <dbus/dbus-glib-lowlevel.h>
+#include <NetworkManager/NetworkManager.h>
+
+#include <shell/e-shell.h>
+#include <e-util/e-extension.h>
+
+/* Standard GObject macros */
+#define E_TYPE_NETWORK_MANAGER \
+ (e_network_manager_get_type ())
+#define E_NETWORK_MANAGER(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST \
+ ((obj), E_TYPE_NETWORK_MANAGER, ENetworkManager))
+
+typedef struct _ENetworkManager ENetworkManager;
+typedef struct _ENetworkManagerClass ENetworkManagerClass;
+
+struct _ENetworkManager {
+ EExtension parent;
+ DBusConnection *connection;
+};
+
+struct _ENetworkManagerClass {
+ EExtensionClass parent_class;
+};
+
+/* Module Entry Points */
+void e_module_load (GTypeModule *type_module);
+void e_module_unload (GTypeModule *type_module);
+
+/* Forward Declarations */
+GType e_network_manager_get_type (void);
+static gboolean network_manager_connect (ENetworkManager *extension);
+
+G_DEFINE_DYNAMIC_TYPE (ENetworkManager, e_network_manager, E_TYPE_EXTENSION)
+
+static EShell *
+network_manager_get_shell (ENetworkManager *extension)
+{
+ EExtensible *extensible;
+
+ extensible = e_extension_get_extensible (E_EXTENSION (extension));
+
+ return E_SHELL (extensible);
+}
+
+static DBusHandlerResult
+network_manager_monitor (DBusConnection *connection G_GNUC_UNUSED,
+ DBusMessage *message,
+ gpointer user_data)
+{
+ ENetworkManager *extension = user_data;
+ EShell *shell;
+ const gchar *path;
+ guint32 state;
+ DBusError error = DBUS_ERROR_INIT;
+
+ shell = network_manager_get_shell (extension);
+
+ path = dbus_message_get_path (message);
+
+ if (dbus_message_is_signal (message, DBUS_INTERFACE_LOCAL, "Disconnected") &&
+ g_strcmp0 (path, DBUS_PATH_LOCAL) == 0) {
+ dbus_connection_unref (extension->connection);
+ extension->connection = NULL;
+
+ g_timeout_add_seconds (
+ 3, (GSourceFunc) network_manager_connect, extension);
+
+ 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;
+ }
+
+ switch (state) {
+ case NM_STATE_CONNECTED:
+ e_shell_set_network_available (shell, TRUE);
+ break;
+ case NM_STATE_ASLEEP:
+ case NM_STATE_DISCONNECTED:
+ e_shell_set_network_available (shell, FALSE);
+ break;
+ default:
+ break;
+ }
+
+ return DBUS_HANDLER_RESULT_HANDLED;
+}
+
+static void
+network_manager_check_initial_state (ENetworkManager *extension)
+{
+ EShell *shell;
+ DBusMessage *message = NULL;
+ DBusMessage *response = NULL;
+ guint32 state = -1;
+ DBusError error = DBUS_ERROR_INIT;
+
+ shell = network_manager_get_shell (extension);
+
+ message = dbus_message_new_method_call (
+ NM_DBUS_SERVICE, NM_DBUS_PATH, NM_DBUS_INTERFACE, "state");
+
+ /* XXX Assuming this should be safe to call synchronously. */
+ response = dbus_connection_send_with_reply_and_block (
+ extension->connection, message, 100, &error);
+
+ if (response != NULL) {
+ dbus_message_get_args (
+ response, &error, DBUS_TYPE_UINT32,
+ &state, DBUS_TYPE_INVALID);
+ } else {
+ g_warning ("%s", error.message);
+ dbus_error_free (&error);
+ return;
+ }
+
+ /* Update the state only in the absence of a network connection,
+ * otherwise let the old state prevail. */
+ if (state == NM_STATE_ASLEEP || state == NM_STATE_DISCONNECTED)
+ e_shell_set_network_available (shell, FALSE);
+
+ dbus_message_unref (message);
+ dbus_message_unref (response);
+}
+
+static gboolean
+network_manager_connect (ENetworkManager *extension)
+{
+ DBusError error = DBUS_ERROR_INIT;
+
+ /* This is a timeout callback, so the return value denotes
+ * whether to reschedule, not whether we're successful. */
+
+ if (extension->connection != NULL)
+ return FALSE;
+
+ extension->connection = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
+ if (extension->connection == NULL) {
+ g_warning ("%s", error.message);
+ dbus_error_free (&error);
+ return TRUE;
+ }
+
+ dbus_connection_setup_with_g_main (extension->connection, NULL);
+ dbus_connection_set_exit_on_disconnect (extension->connection, FALSE);
+
+ if (!dbus_connection_add_filter (
+ extension->connection,
+ network_manager_monitor, extension, NULL))
+ goto fail;
+
+ network_manager_check_initial_state (extension);
+
+ dbus_bus_add_match (
+ extension->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 fail;
+ }
+
+ return FALSE;
+
+fail:
+ dbus_connection_unref (extension->connection);
+ extension->connection = NULL;
+
+ return TRUE;
+}
+
+static void
+network_manager_constructed (GObject *object)
+{
+ network_manager_connect (E_NETWORK_MANAGER (object));
+}
+
+static void
+e_network_manager_class_init (ENetworkManagerClass *class)
+{
+ GObjectClass *object_class;
+ EExtensionClass *extension_class;
+
+ object_class = G_OBJECT_CLASS (class);
+ object_class->constructed = network_manager_constructed;
+
+ extension_class = E_EXTENSION_CLASS (class);
+ extension_class->extensible_type = E_TYPE_SHELL;
+}
+
+static void
+e_network_manager_class_finalize (ENetworkManagerClass *class)
+{
+}
+
+static void
+e_network_manager_init (ENetworkManager *extension)
+{
+}
+
+G_MODULE_EXPORT void
+e_module_load (GTypeModule *type_module)
+{
+ e_network_manager_register_type (type_module);
+}
+
+G_MODULE_EXPORT void
+e_module_unload (GTypeModule *type_module)
+{
+}