power: Use privileged decorator for actions

Tests:

- Reboot works, the process works in the background showing apps page
- Shutdown works, the process works in the background showing apps page

Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>
Reviewed-by: James Valleroy <jvalleroy@mailbox.org>

actions/power

@@ -1,43 +0,0 @@
-#!/usr/bin/python3
-# SPDX-License-Identifier: AGPL-3.0-or-later
-"""
-Configuration helper for power controls.
-"""
-
-import argparse
-import subprocess
-
-
-def parse_arguments():
-    """Return parsed command line arguments as dictionary."""
-    parser = argparse.ArgumentParser()
-    subparsers = parser.add_subparsers(dest='subcommand', help='Sub command')
-
-    subparsers.add_parser('restart', help='Restart the system')
-    subparsers.add_parser('shutdown', help='Shut down the system')
-
-    subparsers.required = True
-    return parser.parse_args()
-
-
-def subcommand_restart(_):
-    """Restart the system."""
-    subprocess.call('reboot')
-
-
-def subcommand_shutdown(_):
-    """Shut down the system."""
-    subprocess.call(['shutdown', 'now'])
-
-
-def main():
-    """Parse arguments and perform all duties."""
-    arguments = parse_arguments()
-
-    subcommand = arguments.subcommand.replace('-', '_')
-    subcommand_method = globals()['subcommand_' + subcommand]
-    subcommand_method(arguments)
-
-
-if __name__ == '__main__':
-    main()

plinth/modules/power/privileged.py

@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: AGPL-3.0-or-later
+"""Shutdown/restart the system."""
+
+import subprocess
+
+from plinth.actions import privileged
+
+
+@privileged
+def restart():
+    """Restart the system."""
+    subprocess.call('reboot')
+
+
+@privileged
+def shutdown():
+    """Shut down the system."""
+    subprocess.call(['shutdown', 'now'])

plinth/modules/power/views.py

@@ -1,18 +1,17 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
-"""
+"""FreedomBox app for power controls."""
-FreedomBox app for power module.
-"""
 
 from django.forms import Form
 from django.shortcuts import redirect
 from django.template.response import TemplateResponse
 from django.urls import reverse
 
-from plinth import actions
 from plinth import app as app_module
 from plinth import package
 from plinth.views import AppView
 
+from . import privileged
+
 
 class PowerAppView(AppView):
     """Show power app main page."""
@@ -32,7 +31,7 @@ def restart(request):
     form = None
 
     if request.method == 'POST':
-        actions.superuser_run('power', ['restart'], run_in_background=True)
+        privileged.restart(_run_in_background=True)
         return redirect(reverse('apps'))
 
     app = app_module.App.get('power')
@@ -51,7 +50,7 @@ def shutdown(request):
     form = None
 
     if request.method == 'POST':
-        actions.superuser_run('power', ['shutdown'], run_in_background=True)
+        privileged.shutdown(_run_in_background=True)
         return redirect(reverse('apps'))
 
     app = app_module.App.get('power')