moving from https://github.com/perberos/mate-desktop-environment

1 files changed, 340 insertions, 0 deletions

diff --git a/plugins/smartcard/gsd-smartcard-plugin.c b/plugins/smartcard/gsd-smartcard-plugin.c
new file mode 100644
index 0000000..9e3b4f2
--- /dev/null
+++ b/plugins/smartcard/gsd-smartcard-plugin.c
@@ -0,0 +1,340 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2010 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include "config.h"
+
+#include <glib/gi18n-lib.h>
+#include <gmodule.h>
+
+#include <glib.h>
+#include <glib-object.h>
+
+#include <dbus/dbus-glib.h>
+
+#include <mateconf/mateconf-client.h>
+
+#include "mate-settings-plugin.h"
+#include "gsd-smartcard-plugin.h"
+#include "gsd-smartcard-manager.h"
+
+struct GsdSmartcardPluginPrivate {
+        GsdSmartcardManager *manager;
+        DBusGConnection     *bus_connection;
+
+        guint32              is_active : 1;
+};
+
+typedef enum
+{
+    GSD_SMARTCARD_REMOVE_ACTION_NONE,
+    GSD_SMARTCARD_REMOVE_ACTION_LOCK_SCREEN,
+    GSD_SMARTCARD_REMOVE_ACTION_FORCE_LOGOUT,
+} GsdSmartcardRemoveAction;
+
+#define SCREENSAVER_DBUS_NAME      "org.mate.ScreenSaver"
+#define SCREENSAVER_DBUS_PATH      "/"
+#define SCREENSAVER_DBUS_INTERFACE "org.mate.ScreenSaver"
+
+#define SM_DBUS_NAME      "org.mate.SessionManager"
+#define SM_DBUS_PATH      "/org/mate/SessionManager"
+#define SM_DBUS_INTERFACE "org.mate.SessionManager"
+#define SM_LOGOUT_MODE_FORCE 2
+
+#define GSD_SMARTCARD_KEY "/desktop/mate/peripherals/smartcard"
+#define KEY_REMOVE_ACTION GSD_SMARTCARD_KEY "/removal_action"
+
+#define GSD_SMARTCARD_PLUGIN_GET_PRIVATE(object) (G_TYPE_INSTANCE_GET_PRIVATE ((object), GSD_TYPE_SMARTCARD_PLUGIN, GsdSmartcardPluginPrivate))
+
+MATE_SETTINGS_PLUGIN_REGISTER (GsdSmartcardPlugin, gsd_smartcard_plugin);
+
+static void
+simulate_user_activity (GsdSmartcardPlugin *plugin)
+{
+        DBusGProxy *screensaver_proxy;
+
+        g_debug ("GsdSmartcardPlugin telling screensaver about smart card insertion");
+        screensaver_proxy = dbus_g_proxy_new_for_name (plugin->priv->bus_connection,
+                                                       SCREENSAVER_DBUS_NAME,
+                                                       SCREENSAVER_DBUS_PATH,
+                                                       SCREENSAVER_DBUS_INTERFACE);
+
+        dbus_g_proxy_call_no_reply (screensaver_proxy,
+                                    "SimulateUserActivity",
+                                    G_TYPE_INVALID, G_TYPE_INVALID);
+
+        g_object_unref (screensaver_proxy);
+}
+
+static void
+lock_screen (GsdSmartcardPlugin *plugin)
+{
+        DBusGProxy *screensaver_proxy;
+
+        g_debug ("GsdSmartcardPlugin telling screensaver to lock screen");
+        screensaver_proxy = dbus_g_proxy_new_for_name (plugin->priv->bus_connection,
+                                                       SCREENSAVER_DBUS_NAME,
+                                                       SCREENSAVER_DBUS_PATH,
+                                                       SCREENSAVER_DBUS_INTERFACE);
+
+        dbus_g_proxy_call_no_reply (screensaver_proxy,
+                                    "Lock",
+                                    G_TYPE_INVALID, G_TYPE_INVALID);
+
+        g_object_unref (screensaver_proxy);
+}
+
+static void
+force_logout (GsdSmartcardPlugin *plugin)
+{
+        DBusGProxy *sm_proxy;
+        GError     *error;
+        gboolean    res;
+
+        g_debug ("GsdSmartcardPlugin telling session manager to force logout");
+        sm_proxy = dbus_g_proxy_new_for_name (plugin->priv->bus_connection,
+                                              SM_DBUS_NAME,
+                                              SM_DBUS_PATH,
+                                              SM_DBUS_INTERFACE);
+
+        error = NULL;
+        res = dbus_g_proxy_call (sm_proxy,
+                                 "Logout",
+                                 &error,
+                                 G_TYPE_UINT, SM_LOGOUT_MODE_FORCE,
+                                 G_TYPE_INVALID, G_TYPE_INVALID);
+
+        if (! res) {
+                g_warning ("GsdSmartcardPlugin Unable to force logout: %s", error->message);
+                g_error_free (error);
+        }
+
+        g_object_unref (sm_proxy);
+}
+
+static void
+gsd_smartcard_plugin_init (GsdSmartcardPlugin *plugin)
+{
+        plugin->priv = GSD_SMARTCARD_PLUGIN_GET_PRIVATE (plugin);
+
+        g_debug ("GsdSmartcardPlugin initializing");
+
+        plugin->priv->manager = gsd_smartcard_manager_new (NULL);
+}
+
+static void
+gsd_smartcard_plugin_finalize (GObject *object)
+{
+        GsdSmartcardPlugin *plugin;
+
+        g_return_if_fail (object != NULL);
+        g_return_if_fail (GSD_IS_SMARTCARD_PLUGIN (object));
+
+        g_debug ("GsdSmartcardPlugin finalizing");
+
+        plugin = GSD_SMARTCARD_PLUGIN (object);
+
+        g_return_if_fail (plugin->priv != NULL);
+
+        if (plugin->priv->manager != NULL) {
+                g_object_unref (plugin->priv->manager);
+        }
+
+        G_OBJECT_CLASS (gsd_smartcard_plugin_parent_class)->finalize (object);
+}
+
+static void
+smartcard_inserted_cb (GsdSmartcardManager *card_monitor,
+                       GsdSmartcard        *card,
+                       GsdSmartcardPlugin  *plugin)
+{
+        char *name;
+
+        name = gsd_smartcard_get_name (card);
+        g_debug ("GsdSmartcardPlugin smart card '%s' inserted", name);
+        g_free (name);
+
+        simulate_user_activity (plugin);
+}
+
+static gboolean
+user_logged_in_with_smartcard (void)
+{
+    return g_getenv ("PKCS11_LOGIN_TOKEN_NAME") != NULL;
+}
+
+static GsdSmartcardRemoveAction
+get_configured_remove_action (GsdSmartcardPlugin *plugin)
+{
+        MateConfClient *client;
+        char *remove_action_string;
+        GsdSmartcardRemoveAction remove_action;
+
+        client = mateconf_client_get_default ();
+        remove_action_string = mateconf_client_get_string (client,
+                                                        KEY_REMOVE_ACTION, NULL);
+
+        if (remove_action_string == NULL) {
+                g_warning ("GsdSmartcardPlugin unable to get smartcard remove action");
+                remove_action = GSD_SMARTCARD_REMOVE_ACTION_NONE;
+        } else if (strcmp (remove_action_string, "none") == 0) {
+                remove_action = GSD_SMARTCARD_REMOVE_ACTION_NONE;
+        } else if (strcmp (remove_action_string, "lock_screen") == 0) {
+                remove_action = GSD_SMARTCARD_REMOVE_ACTION_LOCK_SCREEN;
+        } else if (strcmp (remove_action_string, "force_logout") == 0) {
+                remove_action = GSD_SMARTCARD_REMOVE_ACTION_FORCE_LOGOUT;
+        } else {
+                g_warning ("GsdSmartcardPlugin unknown smartcard remove action");
+                remove_action = GSD_SMARTCARD_REMOVE_ACTION_NONE;
+        }
+
+        g_object_unref (client);
+
+        return remove_action;
+}
+
+static void
+process_smartcard_removal (GsdSmartcardPlugin *plugin)
+{
+        GsdSmartcardRemoveAction remove_action;
+
+        g_debug ("GsdSmartcardPlugin processing smartcard removal");
+        remove_action = get_configured_remove_action (plugin);
+
+        switch (remove_action)
+        {
+            case GSD_SMARTCARD_REMOVE_ACTION_NONE:
+                return;
+            case GSD_SMARTCARD_REMOVE_ACTION_LOCK_SCREEN:
+                lock_screen (plugin);
+                break;
+            case GSD_SMARTCARD_REMOVE_ACTION_FORCE_LOGOUT:
+                force_logout (plugin);
+                break;
+        }
+}
+
+static void
+smartcard_removed_cb (GsdSmartcardManager *card_monitor,
+                      GsdSmartcard        *card,
+                      GsdSmartcardPlugin  *plugin)
+{
+
+        char *name;
+
+        name = gsd_smartcard_get_name (card);
+        g_debug ("GsdSmartcardPlugin smart card '%s' removed", name);
+        g_free (name);
+
+        if (!gsd_smartcard_is_login_card (card)) {
+                g_debug ("GsdSmartcardPlugin removed smart card was not used to login");
+                return;
+        }
+
+        process_smartcard_removal (plugin);
+}
+
+static void
+impl_activate (MateSettingsPlugin *plugin)
+{
+        GError *error;
+        GsdSmartcardPlugin *smartcard_plugin = GSD_SMARTCARD_PLUGIN (plugin);
+
+        if (smartcard_plugin->priv->is_active) {
+                g_debug ("GsdSmartcardPlugin Not activating smartcard plugin, because it's "
+                         "already active");
+                return;
+        }
+
+        if (!user_logged_in_with_smartcard ()) {
+                g_debug ("GsdSmartcardPlugin Not activating smartcard plugin, because user didn't use "
+                         " smartcard to log in");
+                smartcard_plugin->priv->is_active = FALSE;
+                return;
+        }
+
+        g_debug ("GsdSmartcardPlugin Activating smartcard plugin");
+
+        error = NULL;
+        smartcard_plugin->priv->bus_connection = dbus_g_bus_get (DBUS_BUS_SESSION, &error);
+
+        if (smartcard_plugin->priv->bus_connection == NULL) {
+                g_warning ("GsdSmartcardPlugin Unable to connect to session bus: %s", error->message);
+                return;
+        }
+
+        if (!gsd_smartcard_manager_start (smartcard_plugin->priv->manager, &error)) {
+                g_warning ("GsdSmartcardPlugin Unable to start smartcard manager: %s", error->message);
+                g_error_free (error);
+        }
+
+        g_signal_connect (smartcard_plugin->priv->manager,
+                          "smartcard-removed",
+                          G_CALLBACK (smartcard_removed_cb), smartcard_plugin);
+
+        g_signal_connect (smartcard_plugin->priv->manager,
+                          "smartcard-inserted",
+                          G_CALLBACK (smartcard_inserted_cb), smartcard_plugin);
+
+        if (!gsd_smartcard_manager_login_card_is_inserted (smartcard_plugin->priv->manager)) {
+                g_debug ("GsdSmartcardPlugin processing smartcard removal immediately user logged in with smartcard "
+                         "and it's not inserted");
+                process_smartcard_removal (smartcard_plugin);
+        }
+
+        smartcard_plugin->priv->is_active = TRUE;
+}
+
+static void
+impl_deactivate (MateSettingsPlugin *plugin)
+{
+        GsdSmartcardPlugin *smartcard_plugin = GSD_SMARTCARD_PLUGIN (plugin);
+
+        if (!smartcard_plugin->priv->is_active) {
+                g_debug ("GsdSmartcardPlugin Not deactivating smartcard plugin, "
+                         "because it's already inactive");
+                return;
+        }
+
+        g_debug ("GsdSmartcardPlugin Deactivating smartcard plugin");
+
+        gsd_smartcard_manager_stop (smartcard_plugin->priv->manager);
+
+        g_signal_handlers_disconnect_by_func (smartcard_plugin->priv->manager,
+                                              smartcard_removed_cb, smartcard_plugin);
+
+        g_signal_handlers_disconnect_by_func (smartcard_plugin->priv->manager,
+                                              smartcard_inserted_cb, smartcard_plugin);
+        smartcard_plugin->priv->bus_connection = NULL;
+        smartcard_plugin->priv->is_active = FALSE;
+}
+
+static void
+gsd_smartcard_plugin_class_init (GsdSmartcardPluginClass *klass)
+{
+        GObjectClass *object_class = G_OBJECT_CLASS (klass);
+        MateSettingsPluginClass *plugin_class = MATE_SETTINGS_PLUGIN_CLASS (klass);
+
+        object_class->finalize = gsd_smartcard_plugin_finalize;
+
+        plugin_class->activate = impl_activate;
+        plugin_class->deactivate = impl_deactivate;
+
+        g_type_class_add_private (klass, sizeof (GsdSmartcardPluginPrivate));
+}