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# Copyright (c) 2012 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from oslo_config import fixture as config
from oslotest import base as test_base
import six
import webob
from oslo_middleware import sizelimit
class TestLimitingReader(test_base.BaseTestCase):
def test_limiting_reader(self):
BYTES = 1024
bytes_read = 0
data = six.StringIO("*" * BYTES)
for chunk in sizelimit.LimitingReader(data, BYTES):
bytes_read += len(chunk)
self.assertEqual(BYTES, bytes_read)
bytes_read = 0
data = six.StringIO("*" * BYTES)
reader = sizelimit.LimitingReader(data, BYTES)
byte = reader.read(1)
while len(byte) != 0:
bytes_read += 1
byte = reader.read(1)
self.assertEqual(BYTES, bytes_read)
def test_read_default_value(self):
BYTES = 1024
data_str = "*" * BYTES
data = six.StringIO(data_str)
reader = sizelimit.LimitingReader(data, BYTES)
res = reader.read()
self.assertEqual(data_str, res)
def test_limiting_reader_fails(self):
BYTES = 1024
def _consume_all_iter():
bytes_read = 0
data = six.StringIO("*" * BYTES)
for chunk in sizelimit.LimitingReader(data, BYTES - 1):
bytes_read += len(chunk)
self.assertRaises(webob.exc.HTTPRequestEntityTooLarge,
_consume_all_iter)
def _consume_all_read():
bytes_read = 0
data = six.StringIO("*" * BYTES)
reader = sizelimit.LimitingReader(data, BYTES - 1)
byte = reader.read(1)
while len(byte) != 0:
bytes_read += 1
byte = reader.read(1)
self.assertRaises(webob.exc.HTTPRequestEntityTooLarge,
_consume_all_read)
class TestRequestBodySizeLimiter(test_base.BaseTestCase):
def setUp(self):
super(TestRequestBodySizeLimiter, self).setUp()
self.useFixture(config.Config())
@webob.dec.wsgify()
def fake_app(req):
return webob.Response(req.body)
self.middleware = sizelimit.RequestBodySizeLimiter(fake_app)
self.MAX_REQUEST_BODY_SIZE = (
self.middleware.oslo_conf.oslo_middleware.max_request_body_size)
self.request = webob.Request.blank('/', method='POST')
def test_content_length_acceptable(self):
self.request.headers['Content-Length'] = self.MAX_REQUEST_BODY_SIZE
self.request.body = b"0" * self.MAX_REQUEST_BODY_SIZE
response = self.request.get_response(self.middleware)
self.assertEqual(200, response.status_int)
def test_content_length_too_large(self):
self.request.headers['Content-Length'] = self.MAX_REQUEST_BODY_SIZE + 1
self.request.body = b"0" * (self.MAX_REQUEST_BODY_SIZE + 1)
response = self.request.get_response(self.middleware)
self.assertEqual(413, response.status_int)
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