From 79ec95cf3acbea3f8e01b20c335af40a2850a324 Mon Sep 17 00:00:00 2001
From: Antoine Nguyen <tonio@ngyn.org>
Date: Mon, 21 Jan 2013 13:31:16 +0100
Subject: [PATCH] Logging failed connection attempts.

fix #362
---
 modoboa/auth/views.py   |  4 ++++
 modoboa/lib/sysutils.py | 16 +++++++++++++++-
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/modoboa/auth/views.py b/modoboa/auth/views.py
index b09c71163..57c91d143 100755
--- a/modoboa/auth/views.py
+++ b/modoboa/auth/views.py
@@ -6,6 +6,7 @@ from django.core.urlresolvers import reverse
 from django.utils.translation import ugettext as _
 from modoboa.lib import events
 from modoboa.lib.webutils import _render_to_string
+from modoboa.lib.sysutils import log_warning
 from modoboa.admin import views as admviews
 from forms import LoginForm
 from modoboa.auth.lib import *
@@ -36,6 +37,9 @@ def dologin(request):
                     next = reverse(admviews.domains)
                 return HttpResponseRedirect(next)
             error = _("Your username and password didn't match. Please try again.")
+            log_warning(_("Failed connection attempt from %s as user %s" \
+                              % (request.META["REMOTE_ADDR"], form.cleaned_data["username"])))
+
         next = request.POST.get("next", None)
         httpcode = 401
     else:
diff --git a/modoboa/lib/sysutils.py b/modoboa/lib/sysutils.py
index efa73c957..20af17146 100644
--- a/modoboa/lib/sysutils.py
+++ b/modoboa/lib/sysutils.py
@@ -4,7 +4,8 @@
 This module extra functions/shortcuts to communicate with the system
 (executing commands, etc.)
 """
-
+import logging
+import logging.handlers
 from modoboa.lib import parameters
 
 def exec_cmd(cmd, **kwargs):
@@ -21,3 +22,16 @@ def exec_as_vuser(cmd):
         exec_cmd("echo '%s' >> /tmp/vmail.log" % output)
         return False
     return True
+
+def __log(msg, facility=logging.handlers.SysLogHandler.LOG_AUTH):
+    logger = logging.getLogger('modoboa')
+    logger.setLevel(logging.DEBUG)
+    handler = logging.handlers.SysLogHandler(address='/dev/log', facility=facility)
+    formatter = logging.Formatter('%(name)s: %(levelname)s %(message)s')
+    handler.setFormatter(formatter)
+    logger.addHandler(handler)
+    return logger
+
+def log_warning(msg):
+    logger = __log(msg)
+    logger.warning(msg)