Fixed #12012 -- Added support for logging. Thanks to Vinay Sajip for his draft patch, and to the many people who gave feedback during development of the patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@13981 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/core/handlers/wsgi.py

@@ -1,5 +1,7 @@
-from threading import Lock
+import logging
 from pprint import pformat
+import sys
+from threading import Lock
 try:
     from cStringIO import StringIO
 except ImportError:
@@ -12,6 +14,9 @@ from django.core.urlresolvers import set_script_prefix
 from django.utils import datastructures
 from django.utils.encoding import force_unicode, iri_to_uri
 
+logger = logging.getLogger('django.request')
+
+
 # See http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
 STATUS_CODE_TEXT = {
     100: 'CONTINUE',
@@ -236,6 +241,13 @@ class WSGIHandler(base.BaseHandler):
             try:
                 request = self.request_class(environ)
             except UnicodeDecodeError:
+                logger.warning('Bad Request (UnicodeDecodeError): %s' % request.path,
+                    exc_info=sys.exc_info(),
+                    extra={
+                        'status_code': 400,
+                        'request': request
+                    }
+                )
                 response = http.HttpResponseBadRequest()
             else:
                 response = self.get_response(request)