New 'demo' application.

see #187

demo/__init__.py

@@ -0,0 +1,30 @@
+# coding: utf-8
+from django.core.urlresolvers import reverse
+from django.utils.translation import ugettext_noop as _
+from modoboa.lib import events
+from modoboa.lib.webutils import static_url
+
+def menu(**kwargs):
+    import views
+
+    if kwargs["target"] != "top_menu_middle":
+        return []
+    return [
+        {"name"  : "demo",
+         "label" : _("Demo"),
+         "img" : static_url("pics/demo.png"),
+         "class" : "topdropdown",
+         "menu"  : [
+                {"name"  : "sendvirus",
+                 "label" :  _("Send virus"),
+                 "img" : static_url("pics/send-receive.png"),
+                 "url"   : reverse(views.send_virus)},
+                {"name"  : "sendspam",
+                 "label" :  _("Send spam"),
+                 "img" : static_url("pics/send-receive.png"),
+                 "url"   : reverse(views.send_spam)}
+                ]
+         }
+        ]
+
+events.register("UserMenuDisplay", menu)

demo/urls.py

@@ -0,0 +1,6 @@
+from django.conf.urls.defaults import *
+
+urlpatterns = patterns('modoboa.demo.views',
+                       (r'^sendvirus/$', 'send_virus'),
+                       (r'^sendspam/$', 'send_spam'),
+                       )

demo/views.py

@@ -0,0 +1,44 @@
+# coding: utf-8
+from django.contrib.auth.decorators import login_required
+from modoboa.admin.lib import is_not_localadmin
+from modoboa.lib.webutils import ajax_response
+from modoboa.lib.emailutils import sendmail_simple
+
+@login_required
+@is_not_localadmin()
+def send_virus(request):
+    status, error = sendmail_simple("virus@evil.tld", request.user.username, """
+This is the EICAR testvirus pattern.
+
+X5O!P%@AP[4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*
+
+It cannot harm your computer, but virus scanners
+will detect and treat it as if it were a virus.
+""")
+    if status:
+        return ajax_response(request)
+    return ajax_response(request, "ko", respmsg=error)
+
+@login_required
+@is_not_localadmin()
+def send_spam(request):
+    status, error = sendmail_simple("spam@evil.tld", request.user.username, """
+This is the GTUBE, the
+        Generic
+        Test for
+        Unsolicited
+        Bulk
+        Email
+
+If your spam filter supports it, the GTUBE provides a test by which you
+can verify that the filter is installed correctly and is detecting incoming
+spam. You can send yourself a test mail containing the following string of
+characters (in upper case and with no white spaces and line breaks):
+
+XJS*C4JDBQADN1.NSBN3*2IDNEN*GTUBE-STANDARD-ANTI-UBE-TEST-EMAIL*C.34X
+
+You should send this test mail from an account outside of your network.
+""")
+    if status:
+        return ajax_response(request)
+    return ajax_response(request, "ko", respmsg=error)

lib/emailutils.py

@@ -1,17 +1,20 @@
 # coding: utf-8
 
 import re
-import email
-from email.header import decode_header
 import lxml
 from django.template import Template, Context
 from django.template.loader import render_to_string
 import u2u_decode
+import smtplib
+from email.header import decode_header
+from email.mime.text import MIMEText
+from email.utils import make_msgid, formatdate, parseaddr
+import time
 
 class EmailAddress(object):
     def __init__(self, address):
         self.fulladdress = u2u_decode.u2u_decode(address).strip("\r\t\n")
-        (self.name, self.address) = email.utils.parseaddr(self.fulladdress)
+        (self.name, self.address) = parseaddr(self.fulladdress)
         if self.name == "":
             self.fulladdress = self.address
         
@@ -209,3 +212,32 @@ def decode(s, encodings=('utf8', 'latin1', 'windows-1252', 'ascii'), charset=Non
         except UnicodeDecodeError:
             pass
     return s.decode('ascii', 'ignore')
+
+def sendmail_simple(sender, rcpt, content=""):
+    """Simple way to send a text message
+
+    Send a text/plain message with basic headers (msg-id, date).
+
+    Return a tuple (True, None) on success, (False, error message)
+    otherwise.
+
+    :param sender: sender address
+    :param rcpt: recipient address
+    :param content: message's content
+    :return: tuple
+    """
+    msg = MIMEText(content)
+    msg["Subject"] = "Sample message"
+    msg["From"] = sender
+    msg["To"] = rcpt
+    msg["Message-ID"] = make_msgid()
+    msg["Date"] = formatdate(time.time(), True)
+
+    try:
+        s = smtplib.SMTP()
+        s.connect()
+        s.sendmail(msg["From"], [rcpt], msg.as_string())
+        s.quit()
+    except smtplib.SMTPException, e:
+        return False, "SMTP error: %s" % str(e)
+    return True, None

lib/templatetags/libextras.py

@@ -3,6 +3,7 @@ import os
 from django.conf import settings
 from django import template
 from django.contrib import messages
+from modoboa.lib import events
 from modoboa.lib.sysutils import exec_cmd
 
 register = template.Library()
@@ -49,3 +50,9 @@ def display_messages(msgs):
 </script>
 """ % (level, text)
 
+@register.simple_tag
+def load_optionalmenu(user):
+    menu = events.raiseQueryEvent("UserMenuDisplay", target="top_menu_middle",
+                                  user=user)
+    return template.loader.render_to_string('common/menulist.html', 
+                                            {"entries" : menu, "user" : user})

static/js/common.js

@@ -6,6 +6,22 @@ window.addEvent('domready', function(){
         parent : $("menubar"),
         message : "Loading"
     });
+
+    /* Specific javascript code for the demo... not the best place */
+    $$("a[name=sendspam], a[name=sendvirus]").addEvent("click", function(evt) {
+        evt.stop();
+        new Request.JSON({
+            url: this.get("href"),
+            onSuccess: function(response) {
+                if (response.status == "ok") {
+                    infobox.info(gettext("Message sent"));
+                    infobox.hide(1);
+                } else {
+                    infobox.error(response.respmsg);
+                }
+            }
+        }).get();
+    });
 });
 
 var media_url = "";

templates/nlayout.html

@@ -1,6 +1,5 @@
 {% load i18n %}
-{% load admin_extras %}
-{% load uprefs_extras %}
+{% load admin_extras uprefs_extras libextras %}
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml">
@@ -31,6 +30,7 @@
           {% loadextmenu user %}
           {% options_menu user %}
           {% admin_menu user %}
+          {% load_optionalmenu user %}
         </ul>
       </div>
       <div class="right">

urls.py

@@ -14,6 +14,7 @@ urlpatterns = patterns('',
     (r'^%s$' % prefix, 'modoboa.lib.webutils.topredirection'),
     (r'^%sadmin/' % prefix, include('modoboa.admin.urls')),
     (r'^%suserprefs/' % prefix, include('modoboa.userprefs.urls')),
+    (r'^%sdemo/' % prefix, include('modoboa.demo.urls')),                       
     (r'^accounts/login/$', 'modoboa.auth.views.dologin'),
     (r'^accounts/logout/$', 'modoboa.auth.views.dologout'),
     (r'^jsi18n/$', 'django.views.i18n.javascript_catalog',