privoxy: Use new setup mechanism

plinth/modules/privoxy/__init__.py

@@ -25,23 +25,50 @@ from plinth import actions
 from plinth import action_utils
 from plinth import cfg
 from plinth import service as service_module
+from plinth.utils import format_lazy
 
 
+version = 1
+
+is_essential = False
+
 depends = ['apps']
 
+title = _('Web Proxy (Privoxy)')
+
+description = [
+    _('Privoxy is a non-caching web proxy with advanced filtering '
+      'capabilities for enhancing privacy, modifying web page data and '
+      'HTTP headers, controlling access, and removing ads and other '
+      'obnoxious Internet junk. '),
+
+    format_lazy(
+        _('You can use Privoxy by modifying your browser proxy settings to '
+          'your {box_name} hostname (or IP address) with port 8118. '
+          'While using Privoxy, you can see its configuration details and '
+          'documentation at '
+          '<a href="http://config.privoxy.org">http://config.privoxy.org/</a> '
+          'or <a href="http://p.p">http://p.p</a>.'), box_name=_(cfg.box_name))
+]
+
 service = None
 
 
 def init():
     """Intialize the module."""
     menu = cfg.main_menu.get('apps:index')
-    menu.add_urlname(_('Web Proxy (Privoxy)'), 'glyphicon-cloud-upload',
-                     'privoxy:index', 1000)
+    menu.add_urlname(title, 'glyphicon-cloud-upload', 'privoxy:index', 1000)
 
     global service
     service = service_module.Service(
-        'privoxy', _('Privoxy Web Proxy'),
-        is_external=False, enabled=is_enabled())
+        'privoxy', title, is_external=False, enabled=is_enabled())
+
+
+def setup(helper, old_version=None):
+    """Install and configure the module."""
+    helper.install(['privoxy'])
+    helper.call('post', actions.superuser_run, 'privoxy', ['setup'])
+    helper.call('post', service.notify_enabled, None, True)
 
 
 def is_enabled():

plinth/modules/privoxy/templates/privoxy.html

@@ -1,4 +1,4 @@
-{% extends "base.html" %}
+{% extends "app.html" %}
 {% comment %}
 #
 # This file is part of Plinth.
@@ -21,29 +21,7 @@
 {% load bootstrap %}
 {% load i18n %}
 
-{% block content %}
-
-  <h2>{% trans "Web Proxy (Privoxy)" %}</h2>
-
-  <p>
-    {% blocktrans trimmed %}
-      Privoxy is a non-caching web proxy with advanced filtering
-      capabilities for enhancing privacy, modifying web page data and
-      HTTP headers, controlling access, and removing ads and other
-      obnoxious Internet junk.
-    {% endblocktrans %}
-  </p>
-
-  <p>
-    {% blocktrans trimmed %}
-      You can use Privoxy by modifying your browser proxy settings to
-      your {{ box_name }} hostname (or IP address) with port 8118.
-      While using Privoxy, you can see its configuration details and
-      documentation at
-      <a href="http://config.privoxy.org">http://config.privoxy.org/</a>
-      or <a href="http://p.p">http://p.p</a>.
-    {% endblocktrans %}
-  </p>
+{% block configuration %}
 
   <h3>{% trans "Status" %}</h3>
 

plinth/modules/privoxy/views.py

@@ -26,19 +26,11 @@ import logging
 
 from .forms import PrivoxyForm
 from plinth import actions
-from plinth import package
 from plinth.modules import privoxy
 
 logger = logging.getLogger(__name__)
 
 
-def on_install():
-    """Notify that the service is now enabled."""
-    actions.superuser_run('privoxy', ['setup'])
-    privoxy.service.notify_enabled(None, True)
-
-
-@package.required(['privoxy'], on_install=on_install)
 def index(request):
     """Serve configuration page."""
     status = get_status()
@@ -56,7 +48,8 @@ def index(request):
         form = PrivoxyForm(initial=status, prefix='privoxy')
 
     return TemplateResponse(request, 'privoxy.html',
-                            {'title': _('Web Proxy (Privoxy)'),
+                            {'title': privoxy.title,
+                             'description': privoxy.description,
                              'status': status,
                              'form': form})