diff --git a/nsupdate/templates/400.html b/nsupdate/templates/400.html
deleted file mode 100644
index 0e6add6..0000000
--- a/nsupdate/templates/400.html
+++ /dev/null
@@ -1,7 +0,0 @@
-{% extends "errorpage.html" %}
-
-{% block error %}
-400 Bad Request
-
-This kind of request is not allowed here.
-{% endblock %}
diff --git a/nsupdate/templates/403.html b/nsupdate/templates/403.html
deleted file mode 100644
index 2c5786e..0000000
--- a/nsupdate/templates/403.html
+++ /dev/null
@@ -1,9 +0,0 @@
-{% extends "errorpage.html" %}
-
-{% block error %}
-403 Forbidden
-
-Sorry, this is not allowed (for you).
-
-If you did not log in yet, try logging in.
-{% endblock %}
diff --git a/nsupdate/templates/404.html b/nsupdate/templates/404.html
deleted file mode 100644
index 0200324..0000000
--- a/nsupdate/templates/404.html
+++ /dev/null
@@ -1,7 +0,0 @@
-{% extends "errorpage.html" %}
-
-{% block error %}
-404 Not found
-
-Nothing to see here.
-{% endblock %}
diff --git a/nsupdate/templates/500.html b/nsupdate/templates/500.html
deleted file mode 100644
index 3141f85..0000000
--- a/nsupdate/templates/500.html
+++ /dev/null
@@ -1,7 +0,0 @@
-{% extends "errorpage.html" %}
-
-{% block error %}
-500 Internal Server Error
-
-Sorry, we screwed up. Try again later. :(
-{% endblock %}
diff --git a/nsupdate/templates/errorpage.html b/nsupdate/templates/errorpage.html
deleted file mode 100644
index 3a9a20f..0000000
--- a/nsupdate/templates/errorpage.html
+++ /dev/null
@@ -1,14 +0,0 @@
-
-
-
-
- {{ WWW_HOST }} - something went wrong...
-
-
-
- {% block error %}
- {% endblock %}
-
- Back to {{ WWW_HOST }}.
-
-
diff --git a/nsupdate/urls.py b/nsupdate/urls.py
index deb88b1..bd559e3 100644
--- a/nsupdate/urls.py
+++ b/nsupdate/urls.py
@@ -2,11 +2,14 @@
top-level url dispatching
"""
+import six
+
from django.conf import settings
from django.conf.urls import include, url
from django.contrib import admin
from django.contrib.auth import views as auth_views
from django.conf.urls.static import static
+from django.http import HttpResponse
def remember_me_login(request, *args, **kw):
@@ -35,3 +38,51 @@ if settings.DEBUG:
urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
import debug_toolbar
urlpatterns += [url(r'^__debug__/', include(debug_toolbar.urls)), ]
+
+
+# we have expensive context processors and do not want to invoke them for the
+# http error views, so we must not use templates (nor the django default views).
+
+def http_error(request, status, exception=None):
+ if exception is not None:
+ exception_repr = exception.__class__.__name__
+ # Try to get an "interesting" exception message:
+ try:
+ message = exception.args[0]
+ except (AttributeError, IndexError):
+ pass
+ else:
+ if isinstance(message, six.text_type):
+ exception_repr = message
+ else:
+ # we do not have an exception for 500
+ exception_repr = 'Server Error'
+ body = """\
+%(exception)s (error %(status)d)
+""" % dict(
+ exception=exception_repr,
+ status=status,
+ )
+ return HttpResponse(body, content_type='text/html', status=status)
+
+
+def bad_request(request, exception, template_name=None):
+ return http_error(request, 400, exception)
+
+
+def permission_denied(request, exception, template_name=None):
+ return http_error(request, 403, exception)
+
+
+def page_not_found(request, exception, template_name=None):
+ return http_error(request, 404, exception)
+
+
+def server_error(request, template_name=None):
+ return http_error(request, 500)
+
+
+handler400 = 'nsupdate.urls.bad_request'
+handler403 = 'nsupdate.urls.permission_denied'
+handler404 = 'nsupdate.urls.page_not_found'
+handler500 = 'nsupdate.urls.server_error'