Fixed #14588 -- Corrected r14393 to ensure that response middlewares are are always applied. Includes a battery of tests to validate the expected behavior of the middleware cycle. Thanks to Petr Marhoun for the report.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@14398 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Russell Keith-Magee 2010-10-30 07:19:04 +00:00
parent 20e09ca817
commit 52e0bcbc62
5 changed files with 726 additions and 60 deletions

View File

@ -78,13 +78,15 @@ class BaseHandler(object):
urlconf = settings.ROOT_URLCONF
urlresolvers.set_urlconf(urlconf)
resolver = urlresolvers.RegexURLResolver(r'^/', urlconf)
response = None
# Apply request middleware
for middleware_method in self._request_middleware:
response = middleware_method(request)
if response:
return response
break
if response is None:
if hasattr(request, "urlconf"):
# Reset url resolver with a custom urlconf.
urlconf = request.urlconf
@ -98,8 +100,9 @@ class BaseHandler(object):
for middleware_method in self._view_middleware:
response = middleware_method(request, callback, callback_args, callback_kwargs)
if response:
return response
break
if response is None:
try:
response = callback(request, *callback_args, **callback_kwargs)
except Exception, e:
@ -109,7 +112,8 @@ class BaseHandler(object):
for middleware_method in self._exception_middleware:
response = middleware_method(request, e)
if response:
return response
break
if response is None:
raise
# Complain if the view returned None (a common error).
@ -120,12 +124,6 @@ class BaseHandler(object):
view_name = callback.__class__.__name__ + '.__call__' # If it's a class
raise ValueError("The view %s.%s didn't return an HttpResponse object." % (callback.__module__, view_name))
# Apply response middleware
for middleware_method in self._response_middleware:
response = middleware_method(request, response)
response = self.apply_response_fixes(request, response)
return response
except http.Http404, e:
logger.warning('Not Found: %s' % request.path,
extra={
@ -134,14 +132,14 @@ class BaseHandler(object):
})
if settings.DEBUG:
from django.views import debug
return debug.technical_404_response(request, e)
response = debug.technical_404_response(request, e)
else:
try:
callback, param_dict = resolver.resolve404()
return callback(request, **param_dict)
response = callback(request, **param_dict)
except:
try:
return self.handle_uncaught_exception(request, resolver, sys.exc_info())
response = self.handle_uncaught_exception(request, resolver, sys.exc_info())
finally:
receivers = signals.got_request_exception.send(sender=self.__class__, request=request)
except exceptions.PermissionDenied:
@ -150,19 +148,30 @@ class BaseHandler(object):
'status_code': 403,
'request': request
})
return http.HttpResponseForbidden('<h1>Permission denied</h1>')
response = http.HttpResponseForbidden('<h1>Permission denied</h1>')
except SystemExit:
# Allow sys.exit() to actually exit. See tickets #1023 and #4701
raise
except: # Handle everything else, including SuspiciousOperation, etc.
# Get the exception info now, in case another exception is thrown later.
receivers = signals.got_request_exception.send(sender=self.__class__, request=request)
return self.handle_uncaught_exception(request, resolver, sys.exc_info())
response = self.handle_uncaught_exception(request, resolver, sys.exc_info())
finally:
# Reset URLconf for this thread on the way out for complete
# isolation of request.urlconf
urlresolvers.set_urlconf(None)
try:
# Apply response middleware, regardless of the response
for middleware_method in self._response_middleware:
response = middleware_method(request, response)
response = self.apply_response_fixes(request, response)
except: # Any exception should be gathered and handled
receivers = signals.got_request_exception.send(sender=self.__class__, request=request)
response = self.handle_uncaught_exception(request, resolver, sys.exc_info())
return response
def handle_uncaught_exception(self, request, resolver, exc_info):
"""
Processing for any otherwise uncaught exceptions (those that will

View File

@ -81,11 +81,6 @@ class ClientHandler(BaseHandler):
# admin views.
request._dont_enforce_csrf_checks = not self.enforce_csrf_checks
response = self.get_response(request)
# Apply response middleware.
for middleware_method in self._response_middleware:
response = middleware_method(request, response)
response = self.apply_response_fixes(request, response)
finally:
signals.request_finished.disconnect(close_connection)
signals.request_finished.send(sender=self.__class__)

View File

@ -2,19 +2,81 @@ import sys
from django.test import TestCase
from django.core.signals import got_request_exception
from django.http import HttpResponse
class TestException(Exception):
pass
class TestRequestMiddleware(object):
# A middleware base class that tracks which methods have been called
class TestMiddleware(object):
def __init__(self):
self.process_request_called = False
self.process_view_called = False
self.process_response_called = False
self.process_exception_called = False
def process_request(self, request):
raise TestException('Test Exception')
self.process_request_called = True
def process_view(self, request, view_func, view_args, view_kwargs):
self.process_view_called = True
class TestResponseMiddleware(object):
def process_response(self, request, response):
raise TestException('Test Exception')
self.process_response_called = True
return response
class MiddlewareExceptionTest(TestCase):
def process_exception(self, request, exception):
self.process_exception_called = True
# Middleware examples that do the right thing
class RequestMiddleware(TestMiddleware):
def process_request(self, request):
super(RequestMiddleware, self).process_request(request)
return HttpResponse('Request Middleware')
class ViewMiddleware(TestMiddleware):
def process_view(self, request, view_func, view_args, view_kwargs):
super(ViewMiddleware, self).process_view(request, view_func, view_args, view_kwargs)
return HttpResponse('View Middleware')
class ResponseMiddleware(TestMiddleware):
def process_response(self, request, response):
super(ResponseMiddleware, self).process_response(request, response)
return HttpResponse('Response Middleware')
class ExceptionMiddleware(TestMiddleware):
def process_exception(self, request, exception):
super(ExceptionMiddleware, self).process_exception(request, exception)
return HttpResponse('Exception Middleware')
# Sample middlewares that raise exceptions
class BadRequestMiddleware(TestMiddleware):
def process_request(self, request):
super(BadRequestMiddleware, self).process_request(request)
raise TestException('Test Request Exception')
class BadViewMiddleware(TestMiddleware):
def process_view(self, request, view_func, view_args, view_kwargs):
super(BadViewMiddleware, self).process_view(request, view_func, view_args, view_kwargs)
raise TestException('Test View Exception')
class BadResponseMiddleware(TestMiddleware):
def process_response(self, request, response):
super(BadResponseMiddleware, self).process_response(request, response)
raise TestException('Test Response Exception')
class BadExceptionMiddleware(TestMiddleware):
def process_exception(self, request, exception):
super(BadExceptionMiddleware, self).process_exception(request, exception)
raise TestException('Test Exception Exception')
class BaseMiddlewareExceptionTest(TestCase):
def setUp(self):
self.exceptions = []
got_request_exception.connect(self._on_request_exception)
@ -27,9 +89,15 @@ class MiddlewareExceptionTest(TestCase):
def _on_request_exception(self, sender, request, **kwargs):
self.exceptions.append(sys.exc_info())
def _assert_exception_handled(self):
def _add_middleware(self, middleware):
self.client.handler._request_middleware.insert(0, middleware.process_request)
self.client.handler._view_middleware.insert(0, middleware.process_view)
self.client.handler._response_middleware.append(middleware.process_response)
self.client.handler._exception_middleware.append(middleware.process_exception)
def assert_exceptions_handled(self, url, errors, extra_error=None):
try:
response = self.client.get('/middleware_exceptions/')
response = self.client.get(url)
except TestException, e:
# Test client intentionally re-raises any exceptions being raised
# during request handling. Hence actual testing that exception was
@ -37,15 +105,592 @@ class MiddlewareExceptionTest(TestCase):
# signal being sent.
pass
except Exception, e:
if type(extra_error) != type(e):
self.fail("Unexpected exception: %s" % e)
self.assertEquals(len(self.exceptions), 1)
exception, value, tb = self.exceptions[0]
self.assertEquals(value.args, ('Test Exception', ))
self.assertEquals(len(self.exceptions), len(errors))
for i, error in enumerate(errors):
exception, value, tb = self.exceptions[i]
self.assertEquals(value.args, (error, ))
def test_process_request(self):
self.client.handler._request_middleware.insert(0, TestRequestMiddleware().process_request)
self._assert_exception_handled()
def assert_middleware_usage(self, middleware, request, view, response, exception):
self.assertEqual(middleware.process_request_called, request)
self.assertEqual(middleware.process_view_called, view)
self.assertEqual(middleware.process_response_called, response)
self.assertEqual(middleware.process_exception_called, exception)
def test_process_response(self):
self.client.handler._response_middleware.insert(0, TestResponseMiddleware().process_response)
self._assert_exception_handled()
class MiddlewareTests(BaseMiddlewareExceptionTest):
def test_process_request_middleware(self):
pre_middleware = TestMiddleware()
middleware = RequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/view/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, True, False)
self.assert_middleware_usage(middleware, True, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, True, False)
def test_process_view_middleware(self):
pre_middleware = TestMiddleware()
middleware = ViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/view/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, False, True, False)
def test_process_response_middleware(self):
pre_middleware = TestMiddleware()
middleware = ResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/view/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, True, True, False)
def test_process_exception_middleware(self):
pre_middleware = TestMiddleware()
middleware = ExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/view/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, True, True, False)
def test_process_request_middleware_not_found(self):
pre_middleware = TestMiddleware()
middleware = RequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/not_found/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, True, False)
self.assert_middleware_usage(middleware, True, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, True, False)
def test_process_view_middleware_not_found(self):
pre_middleware = TestMiddleware()
middleware = ViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/not_found/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, False, True, False)
def test_process_response_middleware_not_found(self):
pre_middleware = TestMiddleware()
middleware = ResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/not_found/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, True)
self.assert_middleware_usage(middleware, True, True, True, True)
self.assert_middleware_usage(post_middleware, True, True, True, True)
def test_process_exception_middleware_not_found(self):
pre_middleware = TestMiddleware()
middleware = ExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/not_found/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(middleware, True, True, True, True)
self.assert_middleware_usage(post_middleware, True, True, True, True)
def test_process_request_middleware_exception(self):
pre_middleware = TestMiddleware()
middleware = RequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/error/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, True, False)
self.assert_middleware_usage(middleware, True, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, True, False)
def test_process_view_middleware_exception(self):
pre_middleware = TestMiddleware()
middleware = ViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/error/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, False, True, False)
def test_process_response_middleware_exception(self):
pre_middleware = TestMiddleware()
middleware = ResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/error/', ['Error in view'], Exception())
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, True)
self.assert_middleware_usage(middleware, True, True, True, True)
self.assert_middleware_usage(post_middleware, True, True, True, True)
def test_process_exception_middleware_exception(self):
pre_middleware = TestMiddleware()
middleware = ExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/error/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(middleware, True, True, True, True)
self.assert_middleware_usage(post_middleware, True, True, True, True)
def test_process_request_middleware_null_view(self):
pre_middleware = TestMiddleware()
middleware = RequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/null_view/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, True, False)
self.assert_middleware_usage(middleware, True, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, True, False)
def test_process_view_middleware_null_view(self):
pre_middleware = TestMiddleware()
middleware = ViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/null_view/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, False, True, False)
def test_process_response_middleware_null_view(self):
pre_middleware = TestMiddleware()
middleware = ResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/null_view/', [
"The view regressiontests.middleware_exceptions.views.null_view didn't return an HttpResponse object.",
],
ValueError())
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, True, True, False)
def test_process_exception_middleware_null_view(self):
pre_middleware = TestMiddleware()
middleware = ExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/null_view/', [
"The view regressiontests.middleware_exceptions.views.null_view didn't return an HttpResponse object."
],
ValueError())
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, True, True, False)
def test_process_request_middleware_permission_denied(self):
pre_middleware = TestMiddleware()
middleware = RequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/permission_denied/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, True, False)
self.assert_middleware_usage(middleware, True, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, True, False)
def test_process_view_middleware_permission_denied(self):
pre_middleware = TestMiddleware()
middleware = ViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/permission_denied/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, False, True, False)
def test_process_response_middleware_permission_denied(self):
pre_middleware = TestMiddleware()
middleware = ResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/permission_denied/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, True)
self.assert_middleware_usage(middleware, True, True, True, True)
self.assert_middleware_usage(post_middleware, True, True, True, True)
def test_process_exception_middleware_permission_denied(self):
pre_middleware = TestMiddleware()
middleware = ExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/permission_denied/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(middleware, True, True, True, True)
self.assert_middleware_usage(post_middleware, True, True, True, True)
class BadMiddlewareTests(BaseMiddlewareExceptionTest):
def test_process_request_bad_middleware(self):
pre_middleware = TestMiddleware()
bad_middleware = BadRequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/view/', ['Test Request Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, True, False)
self.assert_middleware_usage(bad_middleware, True, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, True, False)
def test_process_view_bad_middleware(self):
pre_middleware = TestMiddleware()
bad_middleware = BadViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/view/', ['Test View Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(bad_middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, False, True, False)
def test_process_response_bad_middleware(self):
pre_middleware = TestMiddleware()
bad_middleware = BadResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/view/', ['Test Response Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, False)
self.assert_middleware_usage(bad_middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, True, True, False)
def test_process_exception_bad_middleware(self):
pre_middleware = TestMiddleware()
bad_middleware = BadExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/view/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(bad_middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, True, True, False)
def test_process_request_bad_middleware_not_found(self):
pre_middleware = TestMiddleware()
bad_middleware = BadRequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/not_found/', ['Test Request Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, True, False)
self.assert_middleware_usage(bad_middleware, True, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, True, False)
def test_process_view_bad_middleware_not_found(self):
pre_middleware = TestMiddleware()
bad_middleware = BadViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/not_found/', ['Test View Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(bad_middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, False, True, False)
def test_process_response_bad_middleware_not_found(self):
pre_middleware = TestMiddleware()
bad_middleware = BadResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/not_found/', ['Test Response Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True)
self.assert_middleware_usage(bad_middleware, True, True, True, True)
self.assert_middleware_usage(post_middleware, True, True, True, True)
def test_process_exception_bad_middleware_not_found(self):
pre_middleware = TestMiddleware()
bad_middleware = BadExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/not_found/', ['Test Exception Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(bad_middleware, True, True, True, True)
self.assert_middleware_usage(post_middleware, True, True, True, True)
def test_process_request_bad_middleware_exception(self):
pre_middleware = TestMiddleware()
bad_middleware = BadRequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/error/', ['Test Request Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, True, False)
self.assert_middleware_usage(bad_middleware, True, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, True, False)
def test_process_view_bad_middleware_exception(self):
pre_middleware = TestMiddleware()
bad_middleware = BadViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/error/', ['Test View Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(bad_middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, False, True, False)
def test_process_response_bad_middleware_exception(self):
pre_middleware = TestMiddleware()
bad_middleware = BadResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/error/', ['Error in view', 'Test Response Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True)
self.assert_middleware_usage(bad_middleware, True, True, True, True)
self.assert_middleware_usage(post_middleware, True, True, True, True)
def test_process_exception_bad_middleware_exception(self):
pre_middleware = TestMiddleware()
bad_middleware = BadExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/error/', ['Test Exception Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(bad_middleware, True, True, True, True)
self.assert_middleware_usage(post_middleware, True, True, True, True)
def test_process_request_bad_middleware_null_view(self):
pre_middleware = TestMiddleware()
bad_middleware = BadRequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/null_view/', ['Test Request Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, True, False)
self.assert_middleware_usage(bad_middleware, True, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, True, False)
def test_process_view_bad_middleware_null_view(self):
pre_middleware = TestMiddleware()
bad_middleware = BadViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/null_view/', ['Test View Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(bad_middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, False, True, False)
def test_process_response_bad_middleware_null_view(self):
pre_middleware = TestMiddleware()
bad_middleware = BadResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/null_view/', [
"The view regressiontests.middleware_exceptions.views.null_view didn't return an HttpResponse object.",
'Test Response Exception'
])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, False)
self.assert_middleware_usage(bad_middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, True, True, False)
def test_process_exception_bad_middleware_null_view(self):
pre_middleware = TestMiddleware()
bad_middleware = BadExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/null_view/', [
"The view regressiontests.middleware_exceptions.views.null_view didn't return an HttpResponse object."
],
ValueError())
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(bad_middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, True, True, False)
def test_process_request_bad_middleware_permission_denied(self):
pre_middleware = TestMiddleware()
bad_middleware = BadRequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/permission_denied/', ['Test Request Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, True, False)
self.assert_middleware_usage(bad_middleware, True, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, True, False)
def test_process_view_bad_middleware_permission_denied(self):
pre_middleware = TestMiddleware()
bad_middleware = BadViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/permission_denied/', ['Test View Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(bad_middleware, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, False, True, False)
def test_process_response_bad_middleware_permission_denied(self):
pre_middleware = TestMiddleware()
bad_middleware = BadResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/permission_denied/', ['Test Response Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True)
self.assert_middleware_usage(bad_middleware, True, True, True, True)
self.assert_middleware_usage(post_middleware, True, True, True, True)
def test_process_exception_bad_middleware_permission_denied(self):
pre_middleware = TestMiddleware()
bad_middleware = BadExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/permission_denied/', ['Test Exception Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, False)
self.assert_middleware_usage(bad_middleware, True, True, True, True)
self.assert_middleware_usage(post_middleware, True, True, True, True)

View File

@ -4,5 +4,9 @@ from django.conf.urls.defaults import *
import views
urlpatterns = patterns('',
(r'^$', views.index),
(r'^view/$', views.normal_view),
(r'^not_found/$', views.not_found),
(r'^error/$', views.server_error),
(r'^null_view/$', views.null_view),
(r'^permission_denied/$', views.permission_denied),
)

View File

@ -1,4 +1,17 @@
from django import http
from django.core.exceptions import PermissionDenied
def index(request):
return http.HttpResponse('')
def normal_view(request):
return http.HttpResponse('OK')
def not_found(request):
raise http.Http404()
def server_error(request):
raise Exception('Error in view')
def null_view(request):
return None
def permission_denied(request):
raise PermissionDenied()