Some work about #48. This is far from finished.

admin/templatetags/admin_extras.py

@@ -62,6 +62,9 @@ def settings_menu(selection, perms):
          "url" : reverse(admin.views.viewparameters),
          "img" : "/static/pics/domains.png",
          "label" : _("Parameters")},
+        {"name" : "extensions",
+         "url" : reverse(admin.views.viewextensions),
+         "label" : _("Extensions")},
         ]
     return render_to_string('main/menu.html', 
                             {"selection" : selection, "entries" : entries,

admin/urls.py

@@ -19,6 +19,7 @@ urlpatterns = patterns('mailng.admin.views',
                        (r'^settings/$', 'settings'),
                        (r'^settings/addperm/$', 'addpermission'),
                        (r'^settings/delperm/(?P<mbox_id>\d+)/(?P<group>\w+)/$', 'deletepermission'),
+                       (r'^settings/extensions/$', 'viewextensions'),
                        (r'^settings/parameters/$', 'viewparameters'),
                        (r'^settings/parameters/save/$', 'saveparameters'),
                        )

admin/views.py

@@ -442,3 +442,11 @@ def saveparameters(request):
         parameters.save(app, name, v)
     request.user.message_set.create(message=_("Configuration saved."))
     return HttpResponseRedirect(reverse(admin.views.viewparameters))
+
+@login_required
+@user_passes_test(lambda u: u.is_superuser)
+def viewextensions(request):
+    from mailng.extensions import list_extensions
+    return _render(request, 'admin/extensions.html', {
+            "extensions" : list_extensions()
+            })

extensions/__init__.py

@@ -24,3 +24,22 @@ def loadmenus():
             continue
         result += (u,)
     return result
+
+def list_extensions():
+    basedir = "extensions"
+    result = []
+    for d in os.listdir(basedir):
+        if not os.path.isdir("%s/%s" % (basedir, d)):
+            continue
+        isvalid = True
+        for f in ['urls.py', 'main.py', '__init__.py']:
+            if not os.path.exists("%s/%s/%s" % (basedir, d, f)):
+                isvalid = False
+                break
+        if isvalid:
+            module = __import__(d, globals(), locals(), ['main'])
+            try:
+                result += [module.main.infos()]
+            except AttributeError:
+                pass
+    return result

extensions/amavis_quarantine/main.py

@@ -24,6 +24,13 @@ from templatetags.amextras import *
 from mailng.lib.email_listing import parse_search_parameters
 from sql_listing import *
 
+def infos():
+    return {
+        "name" : "Amavis quarantine",
+        "version" : "1.0",
+        "description" : _("Simple amavis quarantine management tool")
+        }
+
 def init():
     events.register("UserMenuDisplay", menu)
     parameters.register("amavis_quarantine", "MAX_MESSAGES_AGE", "int", 14,

extensions/stats/main.py

@@ -25,6 +25,13 @@ graph_list = [{"name" : "traffic", "label" : _("Average normal traffic")},
               {"name" : "badtraffic", "label" : _("Average bad traffic")},
               {"name" : "size", "label" : _("Average normal traffic size")}]
 
+def infos():
+    return {
+        "name" : "Statistics",
+        "version" : "1.0",
+        "description" : _("Graphical statistics about emails traffic using RRDtool")
+        }
+
 def init():
     events.register("AdminMenuDisplay", menu)
     parameters.register("stats", "LOGFILE", "string", "/var/log/mail.log",

extensions/webmail/main.py

@@ -34,6 +34,13 @@ def init():
     parameters.register("webmail", "SMTP_SECURED", "list_yesno", "no",
                         help=_("Use a secured connection to access SMTP server"))
 
+def infos():
+    return {
+        "name" : "Webmail",
+        "version" : "1.0",
+        "description" : _("Simple IMAP webmail")
+        }
+
 def urls():
     return (r'^mailng/webmail/',
             include('mailng.extensions.webmail.urls'))

templates/admin/extensions.html

@@ -0,0 +1,14 @@
+{% extends "admin/settings_header.html" %}
+{% block menu %}
+{% load admin_extras %}
+{% settings_menu "extensions" perms %}
+{% endblock %}
+{% block setcontent %}
+{% load i18n %}
+<table>
+  <tr><th>{% trans "Name" %}</th><th>{% trans "Version" %}</th><th>{% trans "Description" %}</th></tr>
+{% for ext in extensions %}
+  <tr><td>{{ ext.name }}</td><td>{{ ext.version }}</td><td>{{ ext.description }}</td></tr>
+{% endfor %}
+</table>
+{% endblock %}