[gnome-control-center/wip/feborges/new-remote-desktop-dialog: 9/12] sharing/remote-login: Move systemd unit management into helper




commit 132e776c89de1df76fb6f41d1c092e0aaa9dc23c
Author: Jonas Ådahl <jadahl gmail com>
Date:   Wed Feb 23 11:29:26 2022 +0100

    sharing/remote-login: Move systemd unit management into helper
    
    This will make it possible to reuse elsewhere, including for user
    services.

 panels/sharing/cc-remote-login-helper.c | 144 ++++++--------------------------
 panels/sharing/cc-systemd-service.c     | 139 ++++++++++++++++++++++++++++++
 panels/sharing/cc-systemd-service.h     |  30 +++++++
 panels/sharing/meson.build              |   7 +-
 4 files changed, 201 insertions(+), 119 deletions(-)
---
diff --git a/panels/sharing/cc-remote-login-helper.c b/panels/sharing/cc-remote-login-helper.c
index a9a07d0f8..26e527fa4 100644
--- a/panels/sharing/cc-remote-login-helper.c
+++ b/panels/sharing/cc-remote-login-helper.c
@@ -19,126 +19,12 @@
  *
  */
 
-#include <gio/gio.h>
+#include "cc-systemd-service.h"
 
 #ifndef SSHD_SERVICE
 #define SSHD_SERVICE "sshd.service"
 #endif
 
-static const gchar *service_list[] = { SSHD_SERVICE, NULL };
-
-static gint
-enable_ssh_service ()
-{
-  g_autoptr(GDBusConnection) connection = NULL;
-  g_autoptr(GError) error = NULL;
-  g_autoptr(GVariant) start_result = NULL;
-  g_autoptr(GVariant) enable_result = NULL;
-
-  connection = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, &error);
-  if (!connection)
-    {
-      g_critical ("Error connecting to D-Bus system bus: %s", error->message);
-      return 1;
-    }
-
-  start_result = g_dbus_connection_call_sync (connection,
-                                              "org.freedesktop.systemd1",
-                                              "/org/freedesktop/systemd1",
-                                              "org.freedesktop.systemd1.Manager",
-                                              "StartUnit",
-                                              g_variant_new ("(ss)",
-                                                             SSHD_SERVICE,
-                                                             "replace"),
-                                              (GVariantType *) "(o)",
-                                              G_DBUS_CALL_FLAGS_NONE,
-                                              -1,
-                                              NULL,
-                                              &error);
-
-  if (!start_result)
-    {
-      g_critical ("Error starting " SSHD_SERVICE ": %s", error->message);
-      return 1;
-    }
-
-  enable_result = g_dbus_connection_call_sync (connection,
-                                               "org.freedesktop.systemd1",
-                                               "/org/freedesktop/systemd1",
-                                               "org.freedesktop.systemd1.Manager",
-                                               "EnableUnitFiles",
-                                               g_variant_new ("(^asbb)",
-                                                              service_list,
-                                                              FALSE, FALSE),
-                                               (GVariantType *) "(ba(sss))",
-                                               G_DBUS_CALL_FLAGS_NONE,
-                                               -1,
-                                               NULL,
-                                               &error);
-
-  if (!enable_result)
-    {
-      g_critical ("Error enabling " SSHD_SERVICE ": %s", error->message);
-      return 1;
-    }
-
-  return 0;
-}
-
-static gint
-disable_ssh_service ()
-{
-  g_autoptr(GDBusConnection) connection = NULL;
-  g_autoptr(GError) error = NULL;
-  g_autoptr(GVariant) stop_result = NULL;
-  g_autoptr(GVariant) disable_result = NULL;
-
-  connection = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, &error);
-  if (!connection)
-    {
-      g_critical ("Error connecting to D-Bus system bus: %s", error->message);
-      return 1;
-    }
-
-  stop_result = g_dbus_connection_call_sync (connection,
-                                             "org.freedesktop.systemd1",
-                                             "/org/freedesktop/systemd1",
-                                             "org.freedesktop.systemd1.Manager",
-                                             "StopUnit",
-                                             g_variant_new ("(ss)", SSHD_SERVICE, "replace"),
-                                             (GVariantType *) "(o)",
-                                             G_DBUS_CALL_FLAGS_NONE,
-                                             -1,
-                                             NULL,
-                                             &error);
-  if (!stop_result)
-    {
-      g_critical ("Error stopping " SSHD_SERVICE ": %s", error->message);
-      return 1;
-    }
-
-  disable_result = g_dbus_connection_call_sync (connection,
-                                                "org.freedesktop.systemd1",
-                                                "/org/freedesktop/systemd1",
-                                                "org.freedesktop.systemd1.Manager",
-                                                "DisableUnitFiles",
-                                                g_variant_new ("(^asb)", service_list, FALSE,
-                                                               FALSE),
-                                                (GVariantType *) "(a(sss))",
-                                                G_DBUS_CALL_FLAGS_NONE,
-                                                -1,
-                                                NULL,
-                                                &error);
-
-  if (!stop_result)
-    {
-      g_critical ("Error disabling " SSHD_SERVICE ": %s", error->message);
-      return 1;
-    }
-
-  return 0;
-}
-
 int
 main (int    argc,
       char **argv)
@@ -150,9 +36,33 @@ main (int    argc,
     return 1;
 
   if (g_str_equal (argv[1], "enable"))
-    return enable_ssh_service ();
+    {
+      g_autoptr(GError) error = NULL;
+
+      if (!cc_enable_service (SSHD_SERVICE, G_BUS_TYPE_SYSTEM, &error))
+        {
+          g_critical ("Failed to enable %s: %s", SSHD_SERVICE, error->message);
+          return EXIT_FAILURE;
+        }
+      else
+        {
+          return EXIT_SUCCESS;
+        }
+    }
   else if (g_str_equal (argv[1], "disable"))
-    return disable_ssh_service ();
+    {
+      g_autoptr(GError) error = NULL;
+
+      if (!cc_disable_service (SSHD_SERVICE, G_BUS_TYPE_SYSTEM, &error))
+        {
+          g_critical ("Failed to enable %s: %s", SSHD_SERVICE, error->message);
+          return EXIT_FAILURE;
+        }
+      else
+        {
+          return EXIT_SUCCESS;
+        }
+    }
 
   return 1;
 }
diff --git a/panels/sharing/cc-systemd-service.c b/panels/sharing/cc-systemd-service.c
new file mode 100644
index 000000000..c9fa72a4a
--- /dev/null
+++ b/panels/sharing/cc-systemd-service.c
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2013 Intel, Inc
+ * Copyright (C) 2022 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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Author: Thomas Wood <thomas wood intel com>
+ *
+ */
+
+#include "cc-systemd-service.h"
+
+gboolean
+cc_enable_service (const char  *service,
+                   GBusType     bus_type,
+                   GError     **error)
+{
+  g_autoptr(GDBusConnection) connection = NULL;
+  g_autoptr(GVariant) start_result = NULL;
+  g_autoptr(GVariant) enable_result = NULL;
+  const char *service_list[] = { service, NULL };
+
+  connection = g_bus_get_sync (bus_type, NULL, error);
+  if (!connection)
+    {
+      g_prefix_error_literal (error, "Failed connecting to D-Bus system bus: ");
+      return FALSE;
+    }
+
+  start_result = g_dbus_connection_call_sync (connection,
+                                              "org.freedesktop.systemd1",
+                                              "/org/freedesktop/systemd1",
+                                              "org.freedesktop.systemd1.Manager",
+                                              "StartUnit",
+                                              g_variant_new ("(ss)",
+                                                             service,
+                                                             "replace"),
+                                              (GVariantType *) "(o)",
+                                              G_DBUS_CALL_FLAGS_NONE,
+                                              -1,
+                                              NULL,
+                                              error);
+
+  if (!start_result)
+    {
+      g_prefix_error_literal (error, "Failed to start service: ");
+      return FALSE;
+    }
+
+  enable_result = g_dbus_connection_call_sync (connection,
+                                               "org.freedesktop.systemd1",
+                                               "/org/freedesktop/systemd1",
+                                               "org.freedesktop.systemd1.Manager",
+                                               "EnableUnitFiles",
+                                               g_variant_new ("(^asbb)",
+                                                              service_list,
+                                                              FALSE, FALSE),
+                                               (GVariantType *) "(ba(sss))",
+                                               G_DBUS_CALL_FLAGS_NONE,
+                                               -1,
+                                               NULL,
+                                               error);
+
+  if (!enable_result)
+    {
+      g_prefix_error_literal (error, "Failed to enable service: ");
+      return FALSE;
+    }
+
+  return TRUE;
+}
+
+gboolean
+cc_disable_service (const char  *service,
+                    GBusType     bus_type,
+                    GError     **error)
+{
+  g_autoptr(GDBusConnection) connection = NULL;
+  g_autoptr(GVariant) stop_result = NULL;
+  g_autoptr(GVariant) disable_result = NULL;
+  const char *service_list[] = { service, NULL };
+
+  connection = g_bus_get_sync (bus_type, NULL, error);
+  if (!connection)
+    {
+      g_prefix_error_literal (error, "Failed connecting to D-Bus system bus: ");
+      return FALSE;
+    }
+
+  stop_result = g_dbus_connection_call_sync (connection,
+                                             "org.freedesktop.systemd1",
+                                             "/org/freedesktop/systemd1",
+                                             "org.freedesktop.systemd1.Manager",
+                                             "StopUnit",
+                                             g_variant_new ("(ss)", service, "replace"),
+                                             (GVariantType *) "(o)",
+                                             G_DBUS_CALL_FLAGS_NONE,
+                                             -1,
+                                             NULL,
+                                             error);
+  if (!stop_result)
+    {
+      g_prefix_error_literal (error, "Failed to stop service: ");
+      return FALSE;
+    }
+
+  disable_result = g_dbus_connection_call_sync (connection,
+                                                "org.freedesktop.systemd1",
+                                                "/org/freedesktop/systemd1",
+                                                "org.freedesktop.systemd1.Manager",
+                                                "DisableUnitFiles",
+                                                g_variant_new ("(^asb)", service_list, FALSE,
+                                                               FALSE),
+                                                (GVariantType *) "(a(sss))",
+                                                G_DBUS_CALL_FLAGS_NONE,
+                                                -1,
+                                                NULL,
+                                                error);
+
+  if (!stop_result)
+    {
+      g_prefix_error_literal (error, "Failed to disable service: ");
+      return FALSE;
+    }
+
+  return TRUE;
+}
diff --git a/panels/sharing/cc-systemd-service.h b/panels/sharing/cc-systemd-service.h
new file mode 100644
index 000000000..df449f84e
--- /dev/null
+++ b/panels/sharing/cc-systemd-service.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2022 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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#pragma once
+
+#include <gio/gio.h>
+
+gboolean cc_enable_service (const char  *service,
+                            GBusType     bus_type,
+                            GError     **error);
+
+gboolean cc_disable_service (const char  *service,
+                             GBusType     bus_type,
+                             GError     **error);
diff --git a/panels/sharing/meson.build b/panels/sharing/meson.build
index 1e72f935e..7f8472865 100644
--- a/panels/sharing/meson.build
+++ b/panels/sharing/meson.build
@@ -93,12 +93,15 @@ name = 'cc-remote-login-helper'
 
 deps = [
   gio_dep,
-  glib_dep
+  glib_dep,
 ]
 
 executable(
   name,
-  name + '.c',
+  sources: [
+    name + '.c',
+    'cc-systemd-service.c',
+  ],
   include_directories: top_inc,
   dependencies: deps,
   c_args: cflags,


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