Refs #27083 -- Updated conditional header comparison to match RFC 7232.

This commit is contained in:
Kevin Christopher Henry 2016-09-12 23:26:24 -04:00 committed by Tim Graham
parent 5a51b44936
commit 22e303887b
5 changed files with 166 additions and 72 deletions

View file

@ -12,6 +12,7 @@ LAST_MODIFIED_NEWER_STR = 'Mon, 18 Oct 2010 16:56:23 GMT'
LAST_MODIFIED_INVALID_STR = 'Mon, 32 Oct 2010 16:56:23 GMT'
EXPIRED_LAST_MODIFIED_STR = 'Sat, 20 Oct 2007 23:21:47 GMT'
ETAG = '"b4246ffc4f62314ca13147c9d4f76974"'
WEAK_ETAG = 'W/"b4246ffc4f62314ca13147c9d4f76974"' # weak match to ETAG
EXPIRED_ETAG = '"7fae4cd4b0f81e7d2914700043aa8ed6"'
@ -38,9 +39,13 @@ class ConditionalGet(SimpleTestCase):
self.client.defaults['HTTP_IF_MODIFIED_SINCE'] = LAST_MODIFIED_STR
response = self.client.get('/condition/')
self.assertNotModified(response)
response = self.client.put('/condition/')
self.assertFullResponse(response)
self.client.defaults['HTTP_IF_MODIFIED_SINCE'] = LAST_MODIFIED_NEWER_STR
response = self.client.get('/condition/')
self.assertNotModified(response)
response = self.client.put('/condition/')
self.assertFullResponse(response)
self.client.defaults['HTTP_IF_MODIFIED_SINCE'] = LAST_MODIFIED_INVALID_STR
response = self.client.get('/condition/')
self.assertFullResponse(response)
@ -66,6 +71,8 @@ class ConditionalGet(SimpleTestCase):
self.client.defaults['HTTP_IF_NONE_MATCH'] = ETAG
response = self.client.get('/condition/')
self.assertNotModified(response)
response = self.client.put('/condition/')
self.assertEqual(response.status_code, 412)
self.client.defaults['HTTP_IF_NONE_MATCH'] = EXPIRED_ETAG
response = self.client.get('/condition/')
self.assertFullResponse(response)
@ -75,16 +82,68 @@ class ConditionalGet(SimpleTestCase):
response = self.client.get('/condition/')
self.assertNotModified(response)
def test_weak_if_none_match(self):
"""
If-None-Match comparisons use weak matching, so weak and strong ETags
with the same value result in a 304 response.
"""
self.client.defaults['HTTP_IF_NONE_MATCH'] = ETAG
response = self.client.get('/condition/weak_etag/')
self.assertNotModified(response)
response = self.client.put('/condition/weak_etag/')
self.assertEqual(response.status_code, 412)
self.client.defaults['HTTP_IF_NONE_MATCH'] = WEAK_ETAG
response = self.client.get('/condition/weak_etag/')
self.assertNotModified(response)
response = self.client.put('/condition/weak_etag/')
self.assertEqual(response.status_code, 412)
response = self.client.get('/condition/')
self.assertNotModified(response)
response = self.client.put('/condition/')
self.assertEqual(response.status_code, 412)
def test_all_if_none_match(self):
self.client.defaults['HTTP_IF_NONE_MATCH'] = '*'
response = self.client.get('/condition/')
self.assertNotModified(response)
response = self.client.put('/condition/')
self.assertEqual(response.status_code, 412)
response = self.client.get('/condition/no_etag/')
self.assertFullResponse(response, check_last_modified=False, check_etag=False)
def test_if_match(self):
self.client.defaults['HTTP_IF_MATCH'] = ETAG
response = self.client.put('/condition/etag/')
self.assertEqual(response.status_code, 200)
response = self.client.put('/condition/')
self.assertFullResponse(response)
self.client.defaults['HTTP_IF_MATCH'] = EXPIRED_ETAG
response = self.client.put('/condition/etag/')
response = self.client.put('/condition/')
self.assertEqual(response.status_code, 412)
def test_weak_if_match(self):
"""
If-Match comparisons use strong matching, so any comparison involving
a weak ETag return a 412 response.
"""
self.client.defaults['HTTP_IF_MATCH'] = ETAG
response = self.client.get('/condition/weak_etag/')
self.assertEqual(response.status_code, 412)
self.client.defaults['HTTP_IF_MATCH'] = WEAK_ETAG
response = self.client.get('/condition/weak_etag/')
self.assertEqual(response.status_code, 412)
response = self.client.get('/condition/')
self.assertEqual(response.status_code, 412)
def test_all_if_match(self):
self.client.defaults['HTTP_IF_MATCH'] = '*'
response = self.client.get('/condition/')
self.assertFullResponse(response)
response = self.client.get('/condition/no_etag/')
self.assertEqual(response.status_code, 412)
def test_both_headers(self):
# see http://www.w3.org/Protocols/rfc2616/rfc2616-sec13.html#sec13.3.4
# see https://tools.ietf.org/html/rfc7232#section-6
self.client.defaults['HTTP_IF_MODIFIED_SINCE'] = LAST_MODIFIED_STR
self.client.defaults['HTTP_IF_NONE_MATCH'] = ETAG
response = self.client.get('/condition/')
@ -93,7 +152,7 @@ class ConditionalGet(SimpleTestCase):
self.client.defaults['HTTP_IF_MODIFIED_SINCE'] = EXPIRED_LAST_MODIFIED_STR
self.client.defaults['HTTP_IF_NONE_MATCH'] = ETAG
response = self.client.get('/condition/')
self.assertFullResponse(response)
self.assertNotModified(response)
self.client.defaults['HTTP_IF_MODIFIED_SINCE'] = LAST_MODIFIED_STR
self.client.defaults['HTTP_IF_NONE_MATCH'] = EXPIRED_ETAG
@ -114,7 +173,7 @@ class ConditionalGet(SimpleTestCase):
self.client.defaults['HTTP_IF_UNMODIFIED_SINCE'] = EXPIRED_LAST_MODIFIED_STR
self.client.defaults['HTTP_IF_MATCH'] = ETAG
response = self.client.get('/condition/')
self.assertEqual(response.status_code, 412)
self.assertFullResponse(response)
self.client.defaults['HTTP_IF_UNMODIFIED_SINCE'] = EXPIRED_LAST_MODIFIED_STR
self.client.defaults['HTTP_IF_MATCH'] = EXPIRED_ETAG
@ -169,7 +228,7 @@ class ConditionalGet(SimpleTestCase):
response = self.client.get('/condition/last_modified/')
self.assertEqual(response.status_code, 412)
response = self.client.get('/condition/etag/')
self.assertFullResponse(response, check_last_modified=False)
self.assertEqual(response.status_code, 412)
def test_single_condition_8(self):
self.client.defaults['HTTP_IF_UNMODIFIED_SINCE'] = LAST_MODIFIED_STR
@ -181,7 +240,7 @@ class ConditionalGet(SimpleTestCase):
response = self.client.get('/condition/last_modified2/')
self.assertEqual(response.status_code, 412)
response = self.client.get('/condition/etag2/')
self.assertFullResponse(response, check_last_modified=False)
self.assertEqual(response.status_code, 412)
def test_single_condition_head(self):
self.client.defaults['HTTP_IF_MODIFIED_SINCE'] = LAST_MODIFIED_STR
@ -204,17 +263,12 @@ class ConditionalGet(SimpleTestCase):
self.client.defaults['HTTP_IF_NONE_MATCH'] = ETAG
response = self.client.get('/condition/unquoted_etag/')
self.assertNotModified(response)
response = self.client.put('/condition/unquoted_etag/')
self.assertEqual(response.status_code, 412)
self.client.defaults['HTTP_IF_NONE_MATCH'] = EXPIRED_ETAG
response = self.client.get('/condition/unquoted_etag/')
self.assertFullResponse(response, check_last_modified=False)
def test_all_if_none_match(self):
self.client.defaults['HTTP_IF_NONE_MATCH'] = '*'
response = self.client.get('/condition/etag/')
self.assertNotModified(response)
response = self.client.get('/condition/no_etag/')
self.assertFullResponse(response, check_last_modified=False, check_etag=False)
def test_invalid_etag(self):
self.client.defaults['HTTP_IF_NONE_MATCH'] = '"""'
response = self.client.get('/condition/etag/')

View file

@ -9,5 +9,6 @@ urlpatterns = [
url('^condition/etag/$', views.etag_view1),
url('^condition/etag2/$', views.etag_view2),
url('^condition/unquoted_etag/$', views.etag_view_unquoted),
url('^condition/weak_etag/$', views.etag_view_weak),
url('^condition/no_etag/$', views.etag_view_none),
]

View file

@ -1,7 +1,7 @@
from django.http import HttpResponse
from django.views.decorators.http import condition, etag, last_modified
from .tests import ETAG, FULL_RESPONSE, LAST_MODIFIED
from .tests import ETAG, FULL_RESPONSE, LAST_MODIFIED, WEAK_ETAG
@condition(lambda r: ETAG, lambda r: LAST_MODIFIED)
@ -37,6 +37,14 @@ def etag_view_unquoted(request):
return HttpResponse(FULL_RESPONSE)
@condition(etag_func=lambda r: WEAK_ETAG)
def etag_view_weak(request):
"""
Use an etag_func() that returns a weak ETag.
"""
return HttpResponse(FULL_RESPONSE)
@condition(etag_func=lambda r: None)
def etag_view_none(request):
"""