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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 cfg
from six import StringIO
import webob
from openstack.common.middleware import sizelimit
from tests import utils
CONF = cfg.CONF
MAX_REQUEST_BODY_SIZE = CONF.max_request_body_size
class TestLimitingReader(utils.BaseTestCase):
def test_limiting_reader(self):
BYTES = 1024
bytes_read = 0
data = StringIO("*" * BYTES)
for chunk in sizelimit.LimitingReader(data, BYTES):
bytes_read += len(chunk)
self.assertEquals(bytes_read, BYTES)
bytes_read = 0
data = StringIO("*" * BYTES)
reader = sizelimit.LimitingReader(data, BYTES)
byte = reader.read(1)
while len(byte) != 0:
bytes_read += 1
byte = reader.read(1)
self.assertEquals(bytes_read, BYTES)
def test_limiting_reader_fails(self):
BYTES = 1024
def _consume_all_iter():
bytes_read = 0
data = 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 = 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(utils.BaseTestCase):
def setUp(self):
super(TestRequestBodySizeLimiter, self).setUp()
@webob.dec.wsgify()
def fake_app(req):
return webob.Response(req.body)
self.middleware = sizelimit.RequestBodySizeLimiter(fake_app)
self.request = webob.Request.blank('/', method='POST')
def test_content_length_acceptable(self):
self.request.headers['Content-Length'] = MAX_REQUEST_BODY_SIZE
self.request.body = "0" * MAX_REQUEST_BODY_SIZE
response = self.request.get_response(self.middleware)
self.assertEqual(response.status_int, 200)
def test_content_length_too_large(self):
self.request.headers['Content-Length'] = MAX_REQUEST_BODY_SIZE + 1
self.request.body = "0" * (MAX_REQUEST_BODY_SIZE + 1)
response = self.request.get_response(self.middleware)
self.assertEqual(response.status_int, 413)
def test_request_too_large_no_content_length(self):
self.request.body = "0" * (MAX_REQUEST_BODY_SIZE + 1)
self.request.headers['Content-Length'] = None
response = self.request.get_response(self.middleware)
self.assertEqual(response.status_int, 413)
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