Add function to change root chanel name of mumble server

Show the current name of the root channel

Reviewed-by: James Valleroy <jvalleroy@mailbox.org>
[james: Use augeas for config file operations]
[james: Pass channel name on command line]
[james: Add functional test for change root channel name]
Signed-off-by: James Valleroy <jvalleroy@mailbox.org>

actions/mumble

@@ -12,6 +12,8 @@ from subprocess import PIPE, Popen
 
 import augeas
 
+from plinth import action_utils
+
 CONFIG_FILE = '/etc/mumble-server.ini'
 DATA_DIR = '/var/lib/mumble-server'
 
@@ -30,6 +32,13 @@ def parse_arguments():
     subparser = subparsers.add_parser('set-domain', help='Setup Mumble domain')
     subparser.add_argument('domain_name', help='Domain name to be allowed')
 
+    subparser = subparsers.add_parser('change-root-channel-name',
+                                      help='Set the root channel name')
+    subparser.add_argument('root_channel_name', help='New root channel name')
+
+    subparsers.add_parser('get-root-channel-name',
+                          help='Print the root channel name')
+
     subparsers.required = True
     return parser.parse_args()
 
@@ -83,6 +92,21 @@ def subcommand_set_domain(arguments):
     domain_file.write_text(arguments.domain_name)
 
 
+def subcommand_change_root_channel_name(arguments):
+    """Change the name of the Root channel."""
+    aug = load_augeas()
+    aug.set('.anon/registerName', arguments.root_channel_name)
+    aug.save()
+    action_utils.service_try_restart('mumble-server')
+
+
+def subcommand_get_root_channel_name(_):
+    aug = load_augeas()
+    name = aug.get('.anon/registerName')
+    if name:
+        print(name)
+
+
 def load_augeas():
     """Initialize Augeas."""
     aug = augeas.Augeas(flags=augeas.Augeas.NO_LOAD +

plinth/modules/mumble/__init__.py

@@ -152,3 +152,8 @@ def get_domains():
         return [domain]
 
     return []
+
+
+def get_root_channel_name():
+    """Return the root channel name."""
+    return actions.superuser_run('mumble', ['get-root-channel-name'])

plinth/modules/mumble/forms.py

@@ -34,3 +34,13 @@ class MumbleForm(forms.Form):
             'SuperUser password can be used to manage permissions in Mumble.'),
         required=False,
     )
+
+    root_channel_name = forms.CharField(
+        label=_('Set the name for the root channel'),
+        min_length=1,
+        max_length=32,
+        help_text=_(
+            'Set the name of the main channel of your mumble server. '
+            'If the name was never changed, the channel is named Root.'),
+        required=False,
+    )

plinth/modules/mumble/tests/test_functional.py

@@ -5,12 +5,12 @@ Functional, browser based tests for mumble app.
 
 import pytest
 
-from plinth.tests.functional import BaseAppTests
+from plinth.tests import functional
 
 pytestmark = [pytest.mark.apps, pytest.mark.mumble]
 
 
-class TestMumbleApp(BaseAppTests):
+class TestMumbleApp(functional.BaseAppTests):
     app_name = 'mumble'
     has_service = True
     has_web = False
@@ -20,3 +20,13 @@ class TestMumbleApp(BaseAppTests):
 
     # TODO: Improve test_backup_restore to actually check that data such
     # as rooms, identity or certificates are restored.
+
+    def test_change_root_channel_name(self, session_browser):
+        functional.app_enable(session_browser, 'mumble')
+        functional.nav_to_module(session_browser, 'mumble')
+        session_browser.find_by_id('id_root_channel_name').fill('testing123')
+        functional.submit(session_browser, form_class='form-configuration')
+
+        functional.nav_to_module(session_browser, 'mumble')
+        assert session_browser.find_by_id(
+            'id_root_channel_name').value == 'testing123'

plinth/modules/mumble/views.py

@@ -16,6 +16,7 @@ class MumbleAppView(AppView):
         """Return the values to fill in the form."""
         initial = super().get_initial()
         initial['domain'] = mumble.get_domain()
+        initial['root_channel_name'] = mumble.get_root_channel_name()
         return initial
 
     def form_valid(self, form):
@@ -38,4 +39,9 @@ class MumbleAppView(AppView):
             messages.success(self.request,
                              _('SuperUser password successfully updated.'))
 
+        name = new_config.get('root_channel_name')
+        if name:
+            actions.superuser_run('mumble', ['change-root-channel-name', name])
+            messages.success(self.request, _('Root channel name changed.'))
+
         return super().form_valid(form)