bind: Add config form

plinth/modules/bind/forms.py

@@ -0,0 +1,32 @@
+#
+# This file is part of Plinth.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+"""
+Forms for BIND module.
+"""
+
+from django import forms
+from django.utils.translation import ugettext_lazy as _
+
+from plinth.forms import ServiceForm
+
+
+class BindForm(ServiceForm):
+    """BIND configuration form"""
+    set_forwarding = forms.BooleanField(
+        label=_('Enable forwarding'),
+        required=False)

plinth/modules/bind/views.py

@@ -0,0 +1,60 @@
+#
+# This file is part of Plinth.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+"""
+Views for BIND module.
+"""
+
+from django.contrib import messages
+from django.utils.translation import ugettext_lazy as _
+
+from plinth import actions
+from plinth.views import ServiceView
+
+
+from . import description, managed_services, get_default
+from .forms import BindForm
+
+
+class MinetestServiceView(ServiceView): # pylint: disable=too-many-ancestors
+    """A specialized view for configuring minetest."""
+    service_id = managed_services[0]
+    diagnostics_module_name = "bind"
+    description = description
+    show_status_block = True
+    form_class = BindForm
+
+    def get_initial(self):
+        """Return the values to fill in the form."""
+        initial = super().get_initial()
+        initial.update(get_default())
+        return initial
+
+    def form_valid(self, form):
+        """Change the configurations of Minetest service."""
+        data = form.cleaned_data
+        old_config = get_default()
+
+        if old_config['set_forwarding'] != data['set_forwarding']:
+            value = 'true' if data['set_forwarding'] else 'false'
+            actions.superuser_run(
+                'bind',
+                ['configure', '--set_forwarding', value])
+            messages.success(self.request,
+                             _('Set forwarding configuration updated'))
+
+        return super().form_valid(form)