xmpp: Use new setup mechanism

plinth/modules/xmpp/__init__.py

@@ -20,6 +20,8 @@ Plinth module to configure XMPP server
 """
 
 from django.utils.translation import ugettext_lazy as _
+import logging
+import socket
 
 from plinth import actions
 from plinth import action_utils
@@ -29,21 +31,35 @@ from plinth.signals import pre_hostname_change, post_hostname_change
 from plinth.signals import domainname_change
 
 
+version = 1
+
 depends = ['apps']
 
+title = _('Chat Server (XMPP)')
+
+description = [
+    _('XMPP is an open and standardized communication protocol. Here '
+      'you can run and configure your XMPP server, called ejabberd.'),
+
+    _('To actually communicate, you can use the <a href=\'/jwchat\'>web '
+      'client</a> or any other '
+      '<a href=\'http://xmpp.org/xmpp-software/clients/\' target=\'_blank\''
+      '>XMPP client</a>.')
+]
+
 service = None
 
+logger = logging.getLogger(__name__)
+
 
 def init():
     """Initialize the XMPP module"""
     menu = cfg.main_menu.get('apps:index')
-    menu.add_urlname(_('Chat Server (XMPP)'), 'glyphicon-comment',
-                     'xmpp:index', 400)
+    menu.add_urlname(title, 'glyphicon-comment', 'xmpp:index', 400)
 
     global service
     service = service_module.Service(
-        'xmpp', _('Chat Server (XMPP)'),
-        ['xmpp-client', 'xmpp-server', 'xmpp-bosh'],
+        'xmpp', title, ['xmpp-client', 'xmpp-server', 'xmpp-bosh'],
         is_external=True, enabled=is_enabled())
 
     pre_hostname_change.connect(on_pre_hostname_change)
@@ -51,6 +67,18 @@ def init():
     domainname_change.connect(on_domainname_change)
 
 
+def setup(helper, old_version=None):
+    """Install and configure the module."""
+    domainname = get_domainname()
+    logger.info('XMPP service domainname - %s', domainname)
+
+    helper.call('pre', actions.superuser_run, 'xmpp',
+                ['pre-install', '--domainname', domainname])
+    helper.install(['jwchat', 'ejabberd'])
+    helper.call('post', actions.superuser_run, 'xmpp', ['setup'])
+    helper.call('post', service.notify_enabled, None, True)
+
+
 def is_enabled():
     """Return whether the module is enabled."""
     return (action_utils.service_is_enabled('ejabberd') and
@@ -62,6 +90,12 @@ def is_running():
     return action_utils.service_is_running('ejabberd')
 
 
+def get_domainname():
+    """Return the domainname"""
+    fqdn = socket.getfqdn()
+    return '.'.join(fqdn.split('.')[1:])
+
+
 def on_pre_hostname_change(sender, old_hostname, new_hostname, **kwargs):
     """
     Backup ejabberd database before hostname is changed.

plinth/modules/xmpp/templates/xmpp.html

@@ -1,4 +1,4 @@
-{% extends "base.html" %}
+{% extends "app.html" %}
 {% comment %}
 #
 # This file is part of Plinth.
@@ -21,24 +21,7 @@
 {% load bootstrap %}
 {% load i18n %}
 
-{% block content %}
-
-  <h2>{% trans "Chat Server (XMPP)" %}</h2>
-
-  <p>
-    {% blocktrans trimmed %}
-      XMPP is an open and standardized communication protocol. Here
-      you can run and configure your XMPP server, called ejabberd.
-    {% endblocktrans %}
-  </p>
-
-  <p>
-    {% blocktrans trimmed %}
-      To actually communicate, you can use the <a href='/jwchat'>web
-      client</a> or any other <a href='http://xmpp.org/xmpp-software/clients/'
-      target='_blank'>XMPP client</a>.
-    {% endblocktrans %}
-  </p>
+{% block configuration %}
 
   <p>
     {% url 'config:index' as index_url %}

plinth/modules/xmpp/views.py

@@ -23,39 +23,15 @@ from django.contrib import messages
 from django.template.response import TemplateResponse
 from django.utils.translation import ugettext as _
 import logging
-import socket
 
 from .forms import XmppForm
 from plinth import actions
-from plinth import package
 from plinth.modules import xmpp
 
 
 logger = logging.getLogger(__name__)
 
 
-def get_domainname():
-    """Return the domainname"""
-    fqdn = socket.getfqdn()
-    return '.'.join(fqdn.split('.')[1:])
-
-
-def before_install():
-    """Preseed debconf values before the packages are installed."""
-    domainname = get_domainname()
-    logger.info('XMPP service domainname - %s', domainname)
-    actions.superuser_run('xmpp', ['pre-install', '--domainname', domainname])
-
-
-def on_install():
-    """Setup jwchat apache conf"""
-    actions.superuser_run('xmpp', ['setup'])
-    xmpp.service.notify_enabled(None, True)
-
-
-@package.required(['jwchat', 'ejabberd'],
-                  before_install=before_install,
-                  on_install=on_install)
 def index(request):
     """Serve configuration page"""
     status = get_status()
@@ -72,7 +48,8 @@ def index(request):
         form = XmppForm(initial=status, prefix='xmpp')
 
     return TemplateResponse(request, 'xmpp.html',
-                            {'title': _('Chat Server (XMPP)'),
+                            {'title': xmpp.title,
+                             'description': xmpp.description,
                              'status': status,
                              'form': form})
 
@@ -81,7 +58,7 @@ def get_status():
     """Get the current settings."""
     status = {'enabled': xmpp.is_enabled(),
               'is_running': xmpp.is_running(),
-              'domainname': get_domainname()}
+              'domainname': xmpp.get_domainname()}
 
     return status