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/*
Copyright 2011 Canonical Ltd.
Authors:
Conor Curran <conor.curran@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 <gio/gio.h>
#include <glib/gi18n.h>
#include "apt-watcher.h"
#include "dbus-shared-names.h"
static guint watcher_id;
struct _AptWatcher
{
GObject parent_instance;
GCancellable * proxy_cancel;
GDBusProxy * proxy;
GDBusProxy * transaction_proxy;
SessionDbus* session_dbus_interface;
DbusmenuMenuitem* apt_item;
gint current_state;
};
static void
apt_watcher_on_name_appeared (GDBusConnection *connection,
const gchar *name,
const gchar *name_owner,
gpointer user_data);
static void
apt_watcher_on_name_vanished (GDBusConnection *connection,
const gchar *name,
gpointer user_data);
/*static void
apt_watcher_get_active_transactions_cb (GObject * obj,
GAsyncResult * res,
gpointer user_data);
* */
static void fetch_proxy_cb (GObject * object,
GAsyncResult * res,
gpointer user_data);
static void apt_watcher_simulate_transaction_cb (GObject * obj,
GAsyncResult * res,
gpointer user_data);
static void apt_watcher_upgrade_system_cb (GObject * obj,
GAsyncResult * res,
gpointer user_data);
static void apt_watcher_show_apt_dialog (DbusmenuMenuitem* mi,
guint timestamp,
gchar * type);
static void apt_watcher_signal_cb (GDBusProxy* proxy,
gchar* sender_name,
gchar* signal_name,
GVariant* parameters,
gpointer user_data);
static void apt_watcher_determine_state (AptWatcher* self,
GVariant* update);
static void transaction_on_properties_changed (GDBusProxy *proxy,
GVariant *changed_properties,
const gchar* const *invalidated_properties,
gpointer user_data);
G_DEFINE_TYPE (AptWatcher, apt_watcher, G_TYPE_OBJECT);
static void
apt_watcher_init (AptWatcher *self)
{
self->current_state = UP_TO_DATE;
self->proxy_cancel = g_cancellable_new();
self->proxy = NULL;
self->transaction_proxy = NULL;
g_dbus_proxy_new_for_bus (G_BUS_TYPE_SYSTEM,
G_DBUS_PROXY_FLAGS_NONE,
NULL,
"org.debian.apt",
"/org/debian/apt",
"org.debian.apt",
self->proxy_cancel,
fetch_proxy_cb,
self);
}
static void
apt_watcher_finalize (GObject *object)
{
g_bus_unwatch_name (watcher_id);
G_OBJECT_CLASS (apt_watcher_parent_class)->finalize (object);
}
static void
apt_watcher_class_init (AptWatcherClass *klass)
{
GObjectClass* object_class = G_OBJECT_CLASS (klass);
object_class->finalize = apt_watcher_finalize;
}
static void
fetch_proxy_cb (GObject * object, GAsyncResult * res, gpointer user_data)
{
GError * error = NULL;
AptWatcher* self = APT_WATCHER(user_data);
g_return_if_fail(self != NULL);
GDBusProxy * proxy = g_dbus_proxy_new_for_bus_finish(res, &error);
if (self->proxy_cancel != NULL) {
g_object_unref(self->proxy_cancel);
self->proxy_cancel = NULL;
}
if (error != NULL) {
g_warning("Could not grab DBus proxy for %s: %s",
"org.debian.apt", error->message);
g_error_free(error);
return;
}
self->proxy = proxy;
// Set up the watch.
watcher_id = g_bus_watch_name (G_BUS_TYPE_SYSTEM,
"org.debian.apt",
G_BUS_NAME_WATCHER_FLAGS_NONE,
apt_watcher_on_name_appeared,
apt_watcher_on_name_vanished,
self,
NULL);
//We'll need to connect to the state changed signal
g_signal_connect (self->proxy,
"g-signal",
G_CALLBACK(apt_watcher_signal_cb),
self);
}
static void
apt_watcher_on_name_appeared (GDBusConnection *connection,
const gchar *name,
const gchar *name_owner,
gpointer user_data)
{
g_return_if_fail (APT_IS_WATCHER (user_data));
AptWatcher* watcher = APT_WATCHER (user_data);
g_print ("Name %s on %s is owned by %s\n",
name,
"the system bus",
name_owner);
g_dbus_proxy_call (watcher->proxy,
"UpgradeSystem",
g_variant_new_boolean (TRUE),
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL,
apt_watcher_upgrade_system_cb,
user_data);
/*g_dbus_proxy_call (watcher->proxy,
"GetActiveTransactions",
NULL,
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL,
apt_watcher_get_active_transactions_cb,
user_data);*/
}
static void
apt_watcher_on_name_vanished (GDBusConnection *connection,
const gchar *name,
gpointer user_data)
{
g_debug ("Name %s does not exist or has just vanished",
name);
g_return_if_fail (APT_IS_WATCHER (user_data));
AptWatcher* self = APT_WATCHER (user_data);
if (self->proxy != NULL)
g_object_unref (self->proxy);
}
/*static void
apt_watcher_get_active_transactions_cb (GObject * obj,
GAsyncResult * res,
gpointer user_data)
{
g_return_if_fail (APT_IS_WATCHER (user_data));
AptWatcher* self = APT_WATCHER (user_data);
GError * error = NULL;
GVariant * result;
result = g_dbus_proxy_call_finish(self->proxy, res, &error);
if (error != NULL) {
g_warning ("unable to complete the fetching of active transactions");
g_error_free (error);
return;
}
apt_watcher_determine_state (self, result);
}*/
static void
apt_watcher_upgrade_system_cb (GObject * obj,
GAsyncResult * res,
gpointer user_data)
{
g_return_if_fail (APT_IS_WATCHER (user_data));
AptWatcher* self = APT_WATCHER (user_data);
GError * error = NULL;
GVariant * result;
result = g_dbus_proxy_call_finish(self->proxy, res, &error);
if (error != NULL) {
g_warning ("unable to complete the UpgradeSystem apt call");
g_error_free (error);
return;
}
gchar* transaction_id = NULL;
g_variant_get (result, "(s)", &transaction_id);
if (transaction_id != NULL){
if (self->transaction_proxy != NULL){
g_object_unref (self->transaction_proxy);
self->transaction_proxy = NULL;
}
self->transaction_proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM,
G_DBUS_PROXY_FLAGS_NONE,
NULL, /* GDBusInterfaceInfo */
"org.debian.apt",
transaction_id,
"org.debian.apt",
NULL, /* GCancellable */
&error);
if (error != NULL) {
g_warning ("unable to fetch proxy for transaction object path");
g_error_free (error);
return;
}
g_signal_connect (self->transaction_proxy,
"g-properties-changed",
G_CALLBACK (transaction_on_properties_changed),
self);
g_dbus_proxy_call (self->transaction_proxy,
"Simulate",
NULL,
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL,
apt_watcher_simulate_transaction_cb,
self);
}
}
static void
apt_watcher_simulate_transaction_cb (GObject * obj,
GAsyncResult * res,
gpointer user_data)
{
}
static void
transaction_on_properties_changed (GDBusProxy *proxy,
GVariant *changed_properties,
const gchar* const *invalidated_properties,
gpointer user_data)
{
if (g_variant_n_children (changed_properties) > 0)
{
GVariantIter *iter;
const gchar *key;
GVariant *value;
g_print (" *** Properties Changed:\n");
g_variant_get (changed_properties,
"a{sv}",
&iter);
while (g_variant_iter_loop (iter, "{&sv}", &key, &value))
{
gchar *value_str;
value_str = g_variant_print (value, TRUE);
g_print (" %s -> %s\n", key, value_str);
g_free (value_str);
}
g_variant_iter_free (iter);
}
}
static void
apt_watcher_determine_state (AptWatcher* self,
GVariant* update)
{
g_debug ("WE GOT SOME ACTIVE TRANSACTIONS TO EXAMINE, type is %s",
g_variant_get_type_string (update));
gchar* first_param = NULL;
gchar ** transactions = NULL;
g_variant_get (update, "(sas)", &first_param, &transactions);
g_debug ("apt_watcher_determine_state - the size is the string array %u",
g_strv_length (transactions));
g_debug ("apt_watcher_determine_state - first param = %s", first_param);
if (first_param == NULL){
if (self->current_state != UP_TO_DATE){
dbusmenu_menuitem_property_set (self->apt_item,
DBUSMENU_MENUITEM_PROP_LABEL,
_("Software Up to Date"));
}
}
else{
gboolean updating = g_str_has_prefix (first_param,
"/org/debian/apt/transaction/");
if (updating == TRUE){
self->current_state = UPDATES_IN_PROGRESS;
dbusmenu_menuitem_property_set (self->apt_item,
DBUSMENU_MENUITEM_PROP_LABEL,
_("Updates Installing..."));
}
}
}
static void
apt_watcher_show_apt_dialog (DbusmenuMenuitem * mi,
guint timestamp,
gchar * type)
{
}
// TODO signal is of type s not sas which is on d-feet !!!
static void apt_watcher_signal_cb ( GDBusProxy* proxy,
gchar* sender_name,
gchar* signal_name,
GVariant* parameters,
gpointer user_data)
{
g_return_if_fail (APT_IS_WATCHER (user_data));
AptWatcher* self = APT_WATCHER (user_data);
g_variant_ref (parameters);
GVariant *value = g_variant_get_child_value (parameters, 0);
if (g_strcmp0(signal_name, "ActiveTransactionsChanged") == 0){
g_debug ("Active Transactions signal received");
apt_watcher_determine_state (self, value);
}
g_variant_unref (parameters);
}
AptWatcher* apt_watcher_new (SessionDbus* session_dbus,
DbusmenuMenuitem* item)
{
AptWatcher* watcher = g_object_new (APT_TYPE_WATCHER, NULL);
watcher->session_dbus_interface = session_dbus;
watcher->apt_item = item;
g_signal_connect (G_OBJECT(watcher->apt_item),
DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
G_CALLBACK(apt_watcher_show_apt_dialog), watcher);
return watcher;
}
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