Initial work towards alternative welcome sessions

Patch from bug 650366; it will be easier to work through the review
in the branch.

11 files changed, 469 insertions, 7 deletions

diff --git a/common/gdm-settings-keys.h b/common/gdm-settings-keys.h
index 65a16280..e908c642 100644
--- a/common/gdm-settings-keys.h
+++ b/common/gdm-settings-keys.h
@@ -32,6 +32,7 @@ G_BEGIN_DECLS
 #define GDM_KEY_TIMED_LOGIN_ENABLE "daemon/TimedLoginEnable"
 #define GDM_KEY_TIMED_LOGIN_USER "daemon/TimedLogin"
 #define GDM_KEY_TIMED_LOGIN_DELAY "daemon/TimedLoginDelay"
+#define GDM_KEY_INITIAL_SETUP_ENABLE "daemon/InitialSetupEnable"
 
 #define GDM_KEY_DEBUG "debug/Enable"
 
diff --git a/daemon/Makefile.am b/daemon/Makefile.am
index 98b95ce9..588bf3b4 100644
--- a/daemon/Makefile.am
+++ b/daemon/Makefile.am
@@ -121,6 +121,8 @@ gdm_simple_slave_SOURCES = 		\
 	gdm-welcome-session.h		\
 	gdm-greeter-session.c		\
 	gdm-greeter-session.h		\
+	gdm-setup-session.c		\
+	gdm-setup-session.h		\
 	gdm-server.c			\
 	gdm-server.h			\
 	gdm-session.c			\
diff --git a/daemon/gdm-display.c b/daemon/gdm-display.c
index 6ee675ac..d63ecec0 100644
--- a/daemon/gdm-display.c
+++ b/daemon/gdm-display.c
@@ -385,6 +385,37 @@ gdm_display_get_timed_login_details (GdmDisplay *display,
         return TRUE;
 }
 
+static void
+gdm_display_real_get_initial_setup_details (GdmDisplay *display,
+                                            gboolean   *enabledp)
+{
+        gboolean enabled;
+        gboolean res;
+
+        enabled = FALSE;
+
+        res = gdm_settings_direct_get_boolean (GDM_KEY_INITIAL_SETUP_ENABLE, &enabled);
+
+        if (enabledp != NULL) {
+                *enabledp = enabled;
+        }
+}
+
+gboolean
+gdm_display_get_initial_setup_details (GdmDisplay *display,
+                                       gboolean   *enabled)
+{
+        g_return_val_if_fail (GDM_IS_DISPLAY (display), FALSE);
+
+        GDM_DISPLAY_GET_CLASS (display)->get_initial_setup_details (display, enabled);
+
+        g_debug ("GdmSlave: Got initial setup details for display %s: %d",
+                 display->priv->x11_display_name,
+                 *enabled);
+
+        return TRUE;
+}
+
 static gboolean
 gdm_display_real_remove_user_authorization (GdmDisplay *display,
                                             const char *username,
@@ -1020,6 +1051,7 @@ gdm_display_class_init (GdmDisplayClass *klass)
         klass->remove_user_authorization = gdm_display_real_remove_user_authorization;
         klass->set_slave_bus_name = gdm_display_real_set_slave_bus_name;
         klass->get_timed_login_details = gdm_display_real_get_timed_login_details;
+        klass->get_initial_setup_details = gdm_display_real_get_initial_setup_details;
         klass->prepare = gdm_display_real_prepare;
         klass->manage = gdm_display_real_manage;
         klass->finish = gdm_display_real_finish;
diff --git a/daemon/gdm-display.h b/daemon/gdm-display.h
index 607ea1d4..474a771d 100644
--- a/daemon/gdm-display.h
+++ b/daemon/gdm-display.h
@@ -74,6 +74,8 @@ typedef struct
                                                gboolean   *enabled,
                                                char      **username,
                                                int        *delay);
+        void     (*get_initial_setup_details) (GdmDisplay *display,
+                                               gboolean   *enabled);
 } GdmDisplayClass;
 
 typedef enum
@@ -122,6 +124,8 @@ gboolean            gdm_display_get_timed_login_details        (GdmDisplay *disp
                                                                 char      **username,
                                                                 int        *delay,
                                                                 GError    **error);
+gboolean            gdm_display_get_initial_setup_details      (GdmDisplay *display,
+                                                                gboolean   *enabled);
 
 /* exported but protected */
 gboolean            gdm_display_get_x11_cookie                 (GdmDisplay *display,
diff --git a/daemon/gdm-display.xml b/daemon/gdm-display.xml
index a92e37fc..87ea7c25 100644
--- a/daemon/gdm-display.xml
+++ b/daemon/gdm-display.xml
@@ -40,5 +40,8 @@
       <arg name="username" direction="out" type="s"/>
       <arg name="delay" direction="out" type="i"/>
     </method>
+    <method name="GetInitialSetupDetails">
+      <arg name="enabled" direction="out" type="b"/>
+    </method>
   </interface>
 </node>
diff --git a/daemon/gdm-setup-session.c b/daemon/gdm-setup-session.c
new file mode 100644
index 00000000..2f1e3b79
--- /dev/null
+++ b/daemon/gdm-setup-session.c
@@ -0,0 +1,162 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2011 Red Hat, Inc.
+ * Author: Matthias Clasen
+ *
+ * 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 of the License, 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 <stdlib.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <errno.h>
+#include <ctype.h>
+#include <pwd.h>
+#include <grp.h>
+#include <signal.h>
+
+#include <glib.h>
+#include <glib/gi18n.h>
+#include <glib-object.h>
+
+#include "gdm-welcome-session.h"
+#include "gdm-setup-session.h"
+
+#define GDM_GREETER_SERVER_DBUS_PATH      "/org/gnome/DisplayManager/GreeterServer"
+#define GDM_GREETER_SERVER_DBUS_INTERFACE "org.gnome.DisplayManager.GreeterServer"
+
+#define GDM_SETUP_SESSION_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GDM_TYPE_SETUP_SESSION, GdmSetupSessionPrivate))
+
+struct GdmSetupSessionPrivate
+{
+        gpointer dummy;
+};
+
+enum {
+        PROP_0,
+};
+
+static void     gdm_setup_session_class_init (GdmSetupSessionClass *klass);
+static void     gdm_setup_session_init       (GdmSetupSession      *setup_session);
+static void     gdm_setup_session_finalize   (GObject              *object);
+
+G_DEFINE_TYPE (GdmSetupSession, gdm_setup_session, GDM_TYPE_WELCOME_SESSION)
+
+static void
+gdm_setup_session_set_property (GObject      *object,
+                                guint         prop_id,
+                                const GValue *value,
+                                GParamSpec   *pspec)
+{
+        switch (prop_id) {
+        default:
+                G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+                break;
+        }
+}
+
+static void
+gdm_setup_session_get_property (GObject    *object,
+                                guint       prop_id,
+                                GValue     *value,
+                                GParamSpec *pspec)
+{
+        switch (prop_id) {
+        default:
+                G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+                break;
+        }
+}
+
+static GObject *
+gdm_setup_session_constructor (GType                  type,
+                               guint                  n_construct_properties,
+                               GObjectConstructParam *construct_properties)
+{
+        GdmSetupSession      *setup_session;
+
+        setup_session = GDM_SETUP_SESSION (G_OBJECT_CLASS (gdm_setup_session_parent_class)->constructor (type,
+                                                                                                         n_construct_properties,
+                                                                                                         construct_properties));
+
+        return G_OBJECT (setup_session);
+}
+
+static void
+gdm_setup_session_class_init (GdmSetupSessionClass *klass)
+{
+        GObjectClass    *object_class = G_OBJECT_CLASS (klass);
+
+        object_class->get_property = gdm_setup_session_get_property;
+        object_class->set_property = gdm_setup_session_set_property;
+        object_class->constructor = gdm_setup_session_constructor;
+        object_class->finalize = gdm_setup_session_finalize;
+
+        g_type_class_add_private (klass, sizeof (GdmSetupSessionPrivate));
+}
+
+static void
+gdm_setup_session_init (GdmSetupSession *setup_session)
+{
+        setup_session->priv = GDM_SETUP_SESSION_GET_PRIVATE (setup_session);
+}
+
+static void
+gdm_setup_session_finalize (GObject *object)
+{
+        GdmSetupSession *setup_session;
+
+        g_return_if_fail (object != NULL);
+        g_return_if_fail (GDM_IS_SETUP_SESSION (object));
+
+        setup_session = GDM_SETUP_SESSION (object);
+
+        g_return_if_fail (setup_session->priv != NULL);
+
+        G_OBJECT_CLASS (gdm_setup_session_parent_class)->finalize (object);
+}
+
+GdmSetupSession *
+gdm_setup_session_new (const char *display_name,
+                       const char *seat_id,
+                       const char *display_device,
+                       const char *display_hostname,
+                       gboolean    display_is_local)
+{
+        GObject *object;
+
+        object = g_object_new (GDM_TYPE_SETUP_SESSION,
+                               "command", BINDIR "/gnome-session --session gdm",
+                               "server-dbus-path", GDM_GREETER_SERVER_DBUS_PATH,
+                               "server-dbus-interface", GDM_GREETER_SERVER_DBUS_INTERFACE,
+                               "server-env-var-name", "GDM_GREETER_DBUS_ADDRESS",
+                               "register-ck-session", TRUE,
+                               "x11-display-name", display_name,
+                               "x11-display-seat-id", seat_id,
+                               "x11-display-device", display_device,
+                               "x11-display-hostname", display_hostname,
+                               "x11-display-is-local", display_is_local,
+                               "runtime-dir", GDM_SCREENSHOT_DIR,
+                               NULL);
+
+        return GDM_SETUP_SESSION (object);
+}
diff --git a/daemon/gdm-setup-session.h b/daemon/gdm-setup-session.h
new file mode 100644
index 00000000..c674c6c1
--- /dev/null
+++ b/daemon/gdm-setup-session.h
@@ -0,0 +1,61 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2011 Red Hat, Inc.
+ * Author: Matthias Clasen
+ *
+ * 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 of the License, 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 __GDM_SETUP_SESSION_H
+#define __GDM_SETUP_SESSION_H
+
+#include <glib-object.h>
+
+#include "gdm-welcome-session.h"
+
+G_BEGIN_DECLS
+
+#define GDM_TYPE_SETUP_SESSION         (gdm_setup_session_get_type ())
+#define GDM_SETUP_SESSION(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), GDM_TYPE_SETUP_SESSION, GdmSetupSession))
+#define GDM_SETUP_SESSION_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), GDM_TYPE_SETUP_SESSION, GdmSetupSessionClass))
+#define GDM_IS_SETUP_SESSION(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), GDM_TYPE_SETUP_SESSION))
+#define GDM_IS_SETUP_SESSION_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), GDM_TYPE_SETUP_SESSION))
+#define GDM_SETUP_SESSION_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GDM_TYPE_SETUP_SESSION, GdmSetupSessionClass))
+
+typedef struct GdmSetupSessionPrivate GdmSetupSessionPrivate;
+
+typedef struct
+{
+        GdmWelcomeSession         parent;
+        GdmSetupSessionPrivate *priv;
+} GdmSetupSession;
+
+typedef struct
+{
+        GdmWelcomeSessionClass    parent_class;
+} GdmSetupSessionClass;
+
+GType             gdm_setup_session_get_type (void);
+GdmSetupSession * gdm_setup_session_new      (const char *display_name,
+                                              const char *seat_id,
+                                              const char *display_device,
+                                              const char *display_hostname,
+                                              gboolean    display_is_local);
+
+G_END_DECLS
+
+#endif /* __GDM_SETUP_SESSION_H */
diff --git a/daemon/gdm-simple-slave.c b/daemon/gdm-simple-slave.c
index 2f0163f3..49145fe4 100644
--- a/daemon/gdm-simple-slave.c
+++ b/daemon/gdm-simple-slave.c
@@ -57,6 +57,7 @@
 #include "gdm-session-direct.h"
 #include "gdm-greeter-server.h"
 #include "gdm-greeter-session.h"
+#include "gdm-setup-session.h"
 #include "gdm-settings-direct.h"
 #include "gdm-settings-keys.h"
 
@@ -86,7 +87,7 @@ struct GdmSimpleSlavePrivate
         GdmSessionDirect  *session;
 
         GdmGreeterServer  *greeter_server;
-        GdmGreeterSession *greeter;
+        GdmWelcomeSession *greeter;
 
         guint              start_session_when_ready : 1;
         guint              waiting_to_start_session : 1;
@@ -110,6 +111,7 @@ static void destroy_session    (GdmSimpleSlave *slave);
 static void start_greeter      (GdmSimpleSlave *slave);
 static void queue_start_session (GdmSimpleSlave *slave,
                                  const char     *service_name);
+static void start_initial_setup (GdmSimpleSlave *slave);
 
 static void
 on_session_started (GdmSession       *session,
@@ -1295,11 +1297,155 @@ start_greeter (GdmSimpleSlave *slave)
         gdm_greeter_server_start (slave->priv->greeter_server);
 
         g_debug ("GdmSimpleSlave: Creating greeter on %s %s %s", display_name, display_device, display_hostname);
-        slave->priv->greeter = gdm_greeter_session_new (display_name,
-                                                        seat_id,
-                                                        display_device,
-                                                        display_hostname,
-                                                        display_is_local);
+        slave->priv->greeter = (GdmWelcomeSession*)gdm_greeter_session_new (display_name,
+                                                                            seat_id,
+                                                                            display_device,
+                                                                            display_hostname,
+                                                                            display_is_local);
+        g_signal_connect (slave->priv->greeter,
+                          "started",
+                          G_CALLBACK (on_greeter_session_start),
+                          slave);
+        g_signal_connect (slave->priv->greeter,
+                          "stopped",
+                          G_CALLBACK (on_greeter_session_stop),
+                          slave);
+        g_signal_connect (slave->priv->greeter,
+                          "exited",
+                          G_CALLBACK (on_greeter_session_exited),
+                          slave);
+        g_signal_connect (slave->priv->greeter,
+                          "died",
+                          G_CALLBACK (on_greeter_session_died),
+                          slave);
+        g_object_set (slave->priv->greeter,
+                      "x11-authority-file", auth_file,
+                      NULL);
+
+        address = gdm_greeter_server_get_address (slave->priv->greeter_server);
+        gdm_welcome_session_set_server_address (GDM_WELCOME_SESSION (slave->priv->greeter), address);
+        g_free (address);
+        gdm_welcome_session_start (GDM_WELCOME_SESSION (slave->priv->greeter));
+
+        g_free (display_id);
+        g_free (display_name);
+        g_free (seat_id);
+        g_free (display_device);
+        g_free (display_hostname);
+        g_free (auth_file);
+}
+
+static void
+start_initial_setup (GdmSimpleSlave *slave)
+{
+        gboolean       display_is_local;
+        char          *display_id;
+        char          *display_name;
+        char          *seat_id;
+        char          *display_device;
+        char          *display_hostname;
+        char          *auth_file;
+        char          *address;
+        gboolean       res;
+
+        g_debug ("GdmSimpleSlave: Running initial setup");
+
+        display_is_local = FALSE;
+        display_id = NULL;
+        display_name = NULL;
+        seat_id = NULL;
+        auth_file = NULL;
+        display_device = NULL;
+        display_hostname = NULL;
+
+        g_object_get (slave,
+                      "display-id", &display_id,
+                      "display-is-local", &display_is_local,
+                      "display-name", &display_name,
+                      "display-seat-id", &seat_id,
+                      "display-hostname", &display_hostname,
+                      "display-x11-authority-file", &auth_file,
+                      NULL);
+
+        g_debug ("GdmSimpleSlave: Creating initial setup for %s %s", display_name, display_hostname);
+
+        if (slave->priv->server != NULL) {
+                display_device = gdm_server_get_display_device (slave->priv->server);
+        }
+
+        /* FIXME: send a signal back to the master */
+
+        /* If XDMCP setup pinging */
+        slave->priv->ping_interval = DEFAULT_PING_INTERVAL;
+        res = gdm_settings_direct_get_int (GDM_KEY_PING_INTERVAL,
+                                           &(slave->priv->ping_interval));
+
+        if ( ! display_is_local && slave->priv->ping_interval > 0) {
+                alarm (slave->priv->ping_interval);
+        }
+
+        /* Run the init script. gdmslave suspends until script has terminated */
+        gdm_slave_run_script (GDM_SLAVE (slave), GDMCONFDIR "/Init", GDM_USERNAME);
+
+        slave->priv->greeter_server = gdm_greeter_server_new (display_id);
+        g_signal_connect (slave->priv->greeter_server,
+                          "begin-auto-login",
+                          G_CALLBACK (on_greeter_begin_auto_login),
+                          slave);
+        g_signal_connect (slave->priv->greeter_server,
+                          "begin-verification",
+                          G_CALLBACK (on_greeter_begin_verification),
+                          slave);
+        g_signal_connect (slave->priv->greeter_server,
+                          "begin-verification-for-user",
+                          G_CALLBACK (on_greeter_begin_verification_for_user),
+                          slave);
+        g_signal_connect (slave->priv->greeter_server,
+                          "query-answer",
+                          G_CALLBACK (on_greeter_answer),
+                          slave);
+        g_signal_connect (slave->priv->greeter_server,
+                          "session-selected",
+                          G_CALLBACK (on_greeter_session_selected),
+                          slave);
+        g_signal_connect (slave->priv->greeter_server,
+                          "language-selected",
+                          G_CALLBACK (on_greeter_language_selected),
+                          slave);
+        g_signal_connect (slave->priv->greeter_server,
+                          "user-selected",
+                          G_CALLBACK (on_greeter_user_selected),
+                          slave);
+        g_signal_connect (slave->priv->greeter_server,
+                          "connected",
+                          G_CALLBACK (on_greeter_connected),
+                          slave);
+        g_signal_connect (slave->priv->greeter_server,
+                          "disconnected",
+                          G_CALLBACK (on_greeter_disconnected),
+                          slave);
+        g_signal_connect (slave->priv->greeter_server,
+                          "cancelled",
+                          G_CALLBACK (on_greeter_cancel),
+                          slave);
+        g_signal_connect (slave->priv->greeter_server,
+                          "start-session-when-ready",
+                          G_CALLBACK (on_start_session_when_ready),
+                          slave);
+
+        g_signal_connect (slave->priv->greeter_server,
+                          "start-session-later",
+                          G_CALLBACK (on_start_session_later),
+                          slave);
+
+        gdm_greeter_server_start (slave->priv->greeter_server);
+
+        g_debug ("GdmSimpleSlave: Creating initial setup on %s %s %s", display_name, display_device, display_hostname);
+        slave->priv->greeter = (GdmWelcomeSession *)gdm_setup_session_new (display_name,
+                                                      seat_id,
+                                                      display_device,
+                                                      display_hostname,
+                                                      display_is_local);
         g_signal_connect (slave->priv->greeter,
                           "started",
                           G_CALLBACK (on_greeter_session_start),
@@ -1344,15 +1490,22 @@ idle_connect_to_display (GdmSimpleSlave *slave)
         if (res) {
                 gboolean enabled;
                 int      delay;
+                gboolean initial_setup_enabled;
 
                 /* FIXME: handle wait-for-go */
 
                 setup_server (slave);
 
+                initial_setup_enabled = FALSE;
+                gdm_slave_get_initial_setup_details (GDM_SLAVE (slave), &initial_setup_enabled);
+
                 delay = 0;
                 enabled = FALSE;
                 gdm_slave_get_timed_login_details (GDM_SLAVE (slave), &enabled, NULL, &delay);
-                if (! enabled || delay > 0) {
+                if (initial_setup_enabled) {
+                        start_initial_setup (slave);
+                        create_new_session (slave);
+                } else if (! enabled || delay > 0) {
                         start_greeter (slave);
                         create_new_session (slave);
                 } else {
diff --git a/daemon/gdm-slave.c b/daemon/gdm-slave.c
index 2dc0323f..33a22eb1 100644
--- a/daemon/gdm-slave.c
+++ b/daemon/gdm-slave.c
@@ -1122,6 +1122,42 @@ gdm_slave_get_timed_login_details (GdmSlave   *slave,
         return res;
 }
 
+gboolean
+gdm_slave_get_initial_setup_details (GdmSlave   *slave,
+                                     gboolean   *enabledp)
+{
+        GError        *error;
+        gboolean       res;
+        gboolean       enabled;
+
+        g_debug ("GdmSlave: Requesting initial setup details");
+
+        error = NULL;
+        res = dbus_g_proxy_call (slave->priv->display_proxy,
+                                 "GetInitialSetupDetails",
+                                 &error,
+                                 G_TYPE_INVALID,
+                                 G_TYPE_BOOLEAN, &enabled,
+                                 G_TYPE_INVALID);
+
+        if (! res) {
+                if (error != NULL) {
+                        g_warning ("Failed to get initial setup details: %s", error->message);
+                        g_error_free (error);
+                } else {
+                        g_warning ("Failed to get initial setup details");
+                }
+        } else {
+                g_debug ("GdmSlave: Got initial setup details: %d", enabled);
+        }
+
+        if (enabledp != NULL) {
+                *enabledp = enabled;
+        }
+
+        return res;
+}
+
 static gboolean
 _get_uid_and_gid_for_user (const char *username,
                            uid_t      *uid,
diff --git a/daemon/gdm-slave.h b/daemon/gdm-slave.h
index eda2e193..c4a944d8 100644
--- a/daemon/gdm-slave.h
+++ b/daemon/gdm-slave.h
@@ -65,6 +65,9 @@ gboolean            gdm_slave_get_timed_login_details (GdmSlave  *slave,
                                                        char     **username,
                                                        int       *delay);
 
+gboolean            gdm_slave_get_initial_setup_details (GdmSlave  *slave,
+                                                         gboolean  *enabled);
+
 gboolean            gdm_slave_add_user_authorization (GdmSlave   *slave,
                                                       const char *username,
                                                       char      **filename);
diff --git a/data/gdm.schemas.in.in b/data/gdm.schemas.in.in
index 514117d7..f049c2fd 100644
--- a/data/gdm.schemas.in.in
+++ b/data/gdm.schemas.in.in
@@ -47,6 +47,11 @@
       <signature>i</signature>
       <default>30</default>
     </schema>
+    <schema>
+      <key>daemon/InitialSetupEnable</key>
+      <signature>b</signature>
+      <default>false</default>
+    </schema>
 
     <schema>
       <key>debug/Enable</key>