[krb5-auth-dialog] gnomelock plugin

[Guido Günther <guidog src gnome org>]

commit 456e915b96ecf7a6016c0b76a462e3418f43f841
Author: Zoran Pericic <zpericic netst org>
Date:   Fri Dec 27 20:45:19 2013 +0100

    gnomelock plugin
    
    gnomelock plugin locks screen via dbus on ticket expiration.

 plugins/Makefile.am           |   18 ++++++
 plugins/ka-plugin-gnomelock.c |  130 +++++++++++++++++++++++++++++++++++++++++
 plugins/ka-plugin-gnomelock.h |   50 ++++++++++++++++
 3 files changed, 198 insertions(+), 0 deletions(-)
---
diff --git a/plugins/Makefile.am b/plugins/Makefile.am
index cf69e7b..36e1ca3 100644
--- a/plugins/Makefile.am
+++ b/plugins/Makefile.am
@@ -12,6 +12,7 @@ pkglib_LTLIBRARIES = \
        libka-plugin-dummy.la \
        $(PAM_PLUGIN) \
        libka-plugin-afs.la \
+       libka-plugin-gnomelock.la \
        $(NULL)
 
 # Dummy example plugin
@@ -64,3 +65,20 @@ libka_plugin_afs_la_LDFLAGS = \
        -module \
        -avoid-version \
        $(NULL)
+
+# GnomeLock plugin
+libka_plugin_gnomelock_la_SOURCES = \
+       ka-plugin-gnomelock.c \
+       ka-plugin-gnomelock.h \
+       $(NULL)
+
+libka_plugin_gnomelock_la_CPPFLAGS = \
+       $(GIO_CFLAGS)       \
+       -I$(top_srcdir)/src \
+       $(NULL)
+
+libka_plugin_gnomelock_la_LDFLAGS = \
+       -module \
+       -avoid-version \
+       $(GIO_LIBS)       \
+       $(NULL)
diff --git a/plugins/ka-plugin-gnomelock.c b/plugins/ka-plugin-gnomelock.c
new file mode 100644
index 0000000..1c61cc1
--- /dev/null
+++ b/plugins/ka-plugin-gnomelock.c
@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) 2013 Zoran Pericic <zpericic netst org>
+ *
+ * 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 "ka-plugin-gnomelock.h"
+#include <gmodule.h>
+#include <gio/gio.h>
+
+G_DEFINE_TYPE (KaPluginGnomeLock, ka_plugin_gnomelock, KA_TYPE_PLUGIN)
+#define GET_PRIVATE(o) \
+  (G_TYPE_INSTANCE_GET_PRIVATE ((o), KA_TYPE_PLUGIN_GNOMELOCK, KaPluginGnomeLockPrivate))
+
+int ka_plugin_major_version = KA_PLUGIN_MAJOR_VERSION;
+int ka_plugin_minor_version = KA_PLUGIN_MINOR_VERSION;
+
+G_MODULE_EXPORT KaPlugin *
+ka_plugin_create (void)
+{
+    return KA_PLUGIN (ka_plugin_gnomelock_new ());
+}
+
+typedef struct _KaPluginGnomeLockPrivate KaPluginGnomeLockPrivate;
+
+struct _KaPluginGnomeLockPrivate {
+    gulong handler;
+};
+
+static void
+event_cb (gpointer *applet, gchar *princ, guint when, gpointer user_data)
+{
+    GError *error = NULL;
+    GDBusProxyFlags flags= G_DBUS_PROXY_FLAGS_NONE;
+    GDBusProxy *proxy = NULL;
+
+    proxy = g_dbus_proxy_new_for_bus_sync(G_BUS_TYPE_SESSION,
+                                            flags,
+                                            NULL, /* GDBusInterfaceInfo */
+                                            "org.gnome.ScreenSaver",
+                                            "/org/gnome/ScreenSaver",
+                                            "org.gnome.ScreenSaver",
+                                            NULL, /* GCancellable */
+                                            &error
+                                             );
+
+    if (proxy == NULL) {
+        g_warning ("Error creating proxy: %s\n", error->message);
+        g_error_free (error);
+        return;
+    }
+
+    g_dbus_proxy_call_sync (proxy,
+                                            "Lock",
+                                            NULL,
+                                            G_DBUS_CALL_FLAGS_NONE,
+                                            -1,
+                                            NULL,
+                                            &error);
+
+    if (error) {
+        g_warning ("Error calling lock: %s\n", error->message);
+        g_error_free (error);
+    }
+
+    if (proxy != NULL)
+        g_object_unref (proxy);
+}
+
+static void
+ka_plugin_gnomelock_finalize (GObject *object)
+{
+    G_OBJECT_CLASS (ka_plugin_gnomelock_parent_class)->finalize (object);
+}
+
+static void
+ka_plugin_gnomelock_activate (KaPlugin *self, KaApplet *applet)
+{
+    KaPluginGnomeLockPrivate *priv = GET_PRIVATE (self);
+
+    priv->handler = g_signal_connect (applet,
+                                          "krb-tgt-expired",
+                                          G_CALLBACK (event_cb), "Expired");
+}
+
+static void
+ka_plugin_gnomelock_deactivate (KaPlugin *self, KaApplet *applet)
+{
+    int i;
+    KaPluginGnomeLockPrivate *priv = GET_PRIVATE (self);
+
+    g_signal_handler_disconnect (applet, priv->handler);
+}
+
+static void
+ka_plugin_gnomelock_class_init (KaPluginGnomeLockClass *klass)
+{
+    GObjectClass *object_class = G_OBJECT_CLASS (klass);
+    KaPluginClass *plugin_class = KA_PLUGIN_CLASS (klass);
+
+    g_type_class_add_private (klass, sizeof (KaPluginGnomeLockPrivate));
+
+    plugin_class->activate = ka_plugin_gnomelock_activate;
+    plugin_class->deactivate = ka_plugin_gnomelock_deactivate;
+    object_class->finalize = ka_plugin_gnomelock_finalize;
+}
+
+static void
+ka_plugin_gnomelock_init (KaPluginGnomeLock *self)
+{
+}
+
+KaPluginGnomeLock *
+ka_plugin_gnomelock_new (void)
+{
+    return g_object_new (KA_TYPE_PLUGIN_GNOMELOCK, KA_PLUGIN_PROP_NAME,
+                         "gnomelock", NULL);
+}
diff --git a/plugins/ka-plugin-gnomelock.h b/plugins/ka-plugin-gnomelock.h
new file mode 100644
index 0000000..def836e
--- /dev/null
+++ b/plugins/ka-plugin-gnomelock.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2013 Zoran Pericic <zpericic netst org>
+ *
+ * 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.
+ */
+
+#ifndef _KA_PLUGIN_GNOMELOCK
+#define _KA_PLUGIN_GNOMELOCK
+
+#include "ka-plugin.h"
+
+G_BEGIN_DECLS
+#define KA_TYPE_PLUGIN_GNOMELOCK ka_plugin_gnomelock_get_type()
+#define KA_PLUGIN_GNOMELOCK(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST ((obj), KA_TYPE_PLUGIN_GNOMELOCK, KaPluginGnomeLock))
+#define KA_PLUGIN_GNOMELOCK_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST ((klass), KA_TYPE_PLUGIN_GNOMELOCK, KaPluginGnomeLockClass))
+#define KA_IS_PLUGIN_GNOMELOCK(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), KA_TYPE_PLUGIN_GNOMELOCK))
+#define KA_IS_PLUGIN_GNOMELOCK_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE ((klass), KA_TYPE_PLUGIN_GNOMELOCK))
+#define KA_PLUGIN_GNOMELOCK_GET_CLASS(obj) \
+  (G_TYPE_INSTANCE_GET_CLASS ((obj), KA_TYPE_PLUGIN_GNOMELOCK, KaPluginGnomeLockClass))
+
+typedef struct {
+    KaPlugin parent;
+} KaPluginGnomeLock;
+
+typedef struct {
+    KaPluginClass parent_class;
+} KaPluginGnomeLockClass;
+
+GType ka_plugin_gnomelock_get_type (void);
+
+KaPluginGnomeLock *ka_plugin_gnomelock_new (void);
+
+G_END_DECLS
+#endif /* _KA_PLUGIN_GNOMELOCK */