Important update of the plugin engine.

New plugin that allows the handling of an Amavisd-new SQL quarantine.

NB: a DB connections manager has been added inside the lib because
Django does not support multiple connections at the same time. The
main consequence is that we don't use an ORM and that we have to
rewrite a small wrapper that supports several DB (mysql, postgresql, etc.).
Adding a dependancy to an existing ORM module (like SQLalchemy) is
heavy, we don't want that for now.

extensions/__init__.py

@@ -2,6 +2,8 @@
 import os
 import re
 
+extensions = []
+
 def loadextensions():
     from django.conf import settings
 
@@ -12,3 +14,10 @@ def loadextensions():
             continue
         module = __import__(m.group(1), globals(), locals(), ['main'])
         module.main.init()
+        globals()['extensions'] += [module]
+    
+def loadmenus():
+    result = ()
+    for mod in extensions:
+        result += mod.main.urls()
+    return result

extensions/amavis_quarantine/main.py

@@ -0,0 +1,64 @@
+# -*- coding: utf-8 -*-
+
+"""
+"""
+from django.shortcuts import get_object_or_404, render_to_response
+from django.conf.urls.defaults import *
+from django.utils.translation import ugettext as _
+from django.core.urlresolvers import reverse
+from django.core.paginator import Paginator
+from mailng.lib import events
+from mailng.lib import _render, _ctx_ok, _ctx_ko
+from mailng.lib import db
+from mailng.admin.models import Mailbox
+
+def init():
+    events.register("UserMenuDisplay", menu)
+
+def urls():
+    return (r'^mailng/quarantine/', 
+            include('mailng.extensions.amavis_quarantine.urls'))
+
+def menu(**kwargs):
+    return [
+        {"name" : _("Quarantine"),
+         "url" : reverse(index),
+         "img" : "/static/pics/quarantine.png"}
+        ]
+
+def index(request):
+    if not request.user.is_superuser:
+        mb = Mailbox.objects.get(user=request.user.id)
+        filter = "AND maddr.email='%s'" % mb.full_address
+    else:
+        filter = ""
+    cursor = db.getconnection("amavis_quarantine").cursor()
+    cursor.execute("""
+SELECT msgs.from_addr, maddr.email, msgs.subject, msgs.content, quarantine.mail_id
+FROM quarantine, maddr, msgrcpt, msgs
+WHERE quarantine.mail_id=msgrcpt.mail_id
+AND msgrcpt.rid=maddr.id
+AND msgrcpt.mail_id=msgs.mail_id
+AND quarantine.chunk_ind=1
+%s
+""" % filter)
+    emails = []
+    rows = cursor.fetchall()
+    for row in rows:
+        emails.append({"from" : row[0], "to" : row[1], 
+                       "subject" : row[2], "content" : row[3],
+                       "mailid" : row[4]})
+    
+#     cursor.execute("SELECT count(*) AS cnt FROM quarantine")
+#     row = cursor.fetchone()
+#     cnt = row[0]
+        
+    paginator = Paginator(emails, 10)
+    try:
+        pagenum = int(request.GET.get('page', '1'))
+    except ValueError:
+        pagenum = 1
+    page = paginator.page(pagenum)
+    return _render(request, 'amavis_quarantine/index.html', {
+            "count" : len(rows), "emails" : page
+            })

extensions/amavis_quarantine/templates/index.html

@@ -0,0 +1,71 @@
+{% extends "layout.html" %}
+{% load i18n %}
+{% block html_head %}
+<link rel="stylesheet" type="text/css" href="/static/stylesheets/box.css" />
+{% endblock %}
+{% block content %}
+<style type="text/css">
+#quarmenu {
+  float: left;
+  width: 100%;
+  margin: 5px 0;
+}
+
+#navbar {
+  float: right;
+}
+
+#actionbar {
+  float: left;
+}
+
+td {
+  font-size: smaller;
+  height: 40px;
+}
+</style>
+
+<div class="header">
+  <h1>{% trans "Quarantine" %}</h1>
+  {% if messages %}
+  <div id="infos">
+  {% for m in messages %}
+  {{ m }}
+  {% endfor %}
+  </div>
+  {% endif %}
+</div>
+
+<div id="subcontent">
+<b> Il y a {{ count }} messages dans la quarantaine.</b>
+
+<div id="quarmenu">
+<div id="actionbar">
+  <input type="button" name="release" value="{% trans "Release" %}" />
+  <input type="button" name="delete" value="{% trans "Delete" %}" />
+  <input type="button" name="deleteall" value="{% trans "Delete all" %}" />
+</div>
+<div id="navbar">
+  {% if emails.has_previous %}
+  <a href="?page={{ emails.previous_page_number }}">{% trans "Previous" %}</a>
+  {% endif %}
+  {% if emails.has_next %}
+  <a href="?page={{ emails.next_page_number }}">{% trans "Next" %}</a>
+  {% endif %}
+</div>
+</div>
+<table>
+  <tr>
+    <th></th>
+    <th width="150px">{% trans "From" %}</th>
+    <th width="150px">{% trans "To" %}</th>
+    <th>{% trans "Subject" %}</th>
+  </tr>
+  {% for m in emails.object_list %}
+  <tr class="{% cycle 'odd' 'even' %}">
+    <td><input type="checkbox" name="selection" id="selection" /></td>
+    <td>{{ m.from }}</td><td>{{ m.to }}</td><td>{{ m.subject }}</td></tr>
+  {% endfor %}
+</table>
+</div>
+{% endblock %}

extensions/amavis_quarantine/urls.py

@@ -0,0 +1,5 @@
+from django.conf.urls.defaults import *
+
+urlpatterns = patterns('mailng.extensions.amavis_quarantine.main',
+                       (r'^$', 'index'),
+                       )

extensions/postfix_autoreply/main.py

@@ -16,6 +16,9 @@ def init():
     events.register("CreateMailbox", onCreateMailbox)
     events.register("DeleteMailbox", onDeleteMailbox)
 
+def urls():
+    return ()
+
 def onCreateDomain(**kwargs):
     dom = kwargs["dom"]
     transport = Transport()