config: Consolidate get_domainname() implementation into config

- Use the function get_domainname() in config module everywhere
- Delete duplicate implementations in ejabberd and jsxc

Signed-off-by: Joseph Nuthalapati <njoseph@thoughtworks.com>
Reviewed-by: Sunil Mohan Adapa <sunil@medhas.org>

plinth/modules/ejabberd/__init__.py

@@ -19,7 +19,6 @@ FreedomBox app to configure ejabberd server.
 """
 
 import logging
-import socket
 
 from django.urls import reverse_lazy
 from django.utils.translation import ugettext_lazy as _
@@ -27,6 +26,7 @@ from django.utils.translation import ugettext_lazy as _
 from plinth import action_utils, actions, cfg, frontpage
 from plinth import service as service_module
 from plinth.menu import main_menu
+from plinth.modules import config
 from plinth.signals import (domainname_change, post_hostname_change,
                             pre_hostname_change)
 from plinth.utils import format_lazy
@@ -75,10 +75,11 @@ def init():
     global service
     setup_helper = globals()['setup_helper']
     if setup_helper.get_state() != 'needs-setup':
-        service = service_module.Service('ejabberd', name, ports=[
-            'xmpp-client', 'xmpp-server', 'xmpp-bosh'
-        ], is_external=True, is_enabled=is_enabled, enable=enable,
-                                         disable=disable)
+        service = service_module.Service(
+            'ejabberd', name,
+            ports=['xmpp-client', 'xmpp-server',
+                   'xmpp-bosh'], is_external=True, is_enabled=is_enabled,
+            enable=enable, disable=disable)
         if is_enabled():
             add_shortcut()
     pre_hostname_change.connect(on_pre_hostname_change)
@@ -88,7 +89,7 @@ def init():
 
 def setup(helper, old_version=None):
     """Install and configure the module."""
-    domainname = get_domainname()
+    domainname = config.get_domainname()
     logger.info('ejabberd service domainname - %s', domainname)
 
     helper.call('pre', actions.superuser_run, 'ejabberd',
@@ -97,10 +98,11 @@ def setup(helper, old_version=None):
     helper.call('post', actions.superuser_run, 'ejabberd', ['setup'])
     global service
     if service is None:
-        service = service_module.Service('ejabberd', name, ports=[
-            'xmpp-client', 'xmpp-server', 'xmpp-bosh'
-        ], is_external=True, is_enabled=is_enabled, enable=enable,
-                                         disable=disable)
+        service = service_module.Service(
+            'ejabberd', name,
+            ports=['xmpp-client', 'xmpp-server',
+                   'xmpp-bosh'], is_external=True, is_enabled=is_enabled,
+            enable=enable, disable=disable)
     helper.call('post', service.notify_enabled, None, True)
     helper.call('post', add_shortcut)
 
@@ -117,12 +119,6 @@ def is_enabled():
     return action_utils.service_is_enabled('ejabberd')
 
 
-def get_domainname():
-    """Return the domainname"""
-    fqdn = socket.getfqdn()
-    return '.'.join(fqdn.split('.')[1:])
-
-
 def enable():
     """Enable the module."""
     actions.superuser_run('ejabberd', ['enable'])

plinth/modules/ejabberd/views.py

@@ -22,7 +22,7 @@ from django.contrib import messages
 from django.utils.translation import ugettext as _
 
 from plinth import actions
-from plinth.modules import ejabberd
+from plinth.modules import config, ejabberd
 from plinth.views import ServiceView
 
 from .forms import EjabberdForm
@@ -45,7 +45,7 @@ class EjabberdServiceView(ServiceView):
     def get_context_data(self, *args, **kwargs):
         """Add service to the context data."""
         context = super().get_context_data(*args, **kwargs)
-        context['domainname'] = ejabberd.get_domainname()
+        context['domainname'] = config.get_domainname()
         context['clients'] = ejabberd.clients
         return context
 

plinth/modules/jsxc/__init__.py

@@ -19,7 +19,6 @@ FreedomBox app to configure XMPP web client/jsxc.
 """
 
 import logging
-import socket
 
 from django.urls import reverse_lazy
 from django.utils.translation import ugettext_lazy as _
@@ -90,12 +89,6 @@ def is_enabled():
     return setup_helper.get_state() != 'needs-setup'
 
 
-def get_domainname():
-    """Return the domainname"""
-    fqdn = socket.getfqdn()
-    return '.'.join(fqdn.split('.')[1:])
-
-
 def enable():
     add_shortcut()
 

plinth/modules/jsxc/views.py

@@ -22,7 +22,7 @@ from django.views.generic import TemplateView
 from django.utils.decorators import method_decorator
 from stronghold.decorators import public
 
-from plinth.modules import jsxc
+from plinth.modules import config, jsxc
 from plinth.views import ServiceView
 
 
@@ -47,5 +47,5 @@ class JsxcView(TemplateView):
     def get_context_data(self, *args, **kwargs):
         """Add domain information to view context."""
         context = super().get_context_data(*args, **kwargs)
-        context['domainname'] = jsxc.get_domainname()
+        context['domainname'] = config.get_domainname()
         return context