swift/test/unit/common/test_constraints.py
Victor Lowther 956cc0c793 Relax mount point name checking.
In general, Linux does not care about what a mount point is named as
long as it is a vaild directory name (no / or null characters).
However, that is too relaxed for swift, which will pass that mount
point name around as part of url path construction all over the
place.  To make sure that the mount point name was sane from that POV,
Swift was using isalnum to verify that the mount point name was sane,
which is overly restrictive.

This patch replaces that test with a test that verifies that the name
has no characters that need to be URL encoded.

The specific use case this enables is allowing mount points to be
named according to the UUID of the filesystem that is being mounted,
which will make Swift more robust in the face of device name instability.

Change-Id: I4d49b21c1783e97c16d3f394c2171f1f80eea058
2012-10-18 11:24:18 -05:00

205 lines
9.7 KiB
Python

# Copyright (c) 2010-2012 OpenStack, LLC.
#
# 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.
import unittest
from test.unit import MockTrue
from swift.common.swob import HTTPBadRequest, HTTPLengthRequired, \
HTTPRequestEntityTooLarge, Request
from swift.common.http import HTTP_REQUEST_ENTITY_TOO_LARGE, \
HTTP_BAD_REQUEST, HTTP_LENGTH_REQUIRED
from swift.common import constraints
class TestConstraints(unittest.TestCase):
def test_check_metadata_empty(self):
headers = {}
self.assertEquals(constraints.check_metadata(Request.blank('/',
headers=headers), 'object'), None)
def test_check_metadata_good(self):
headers = {'X-Object-Meta-Name': 'Value'}
self.assertEquals(constraints.check_metadata(Request.blank('/',
headers=headers), 'object'), None)
def test_check_metadata_empty_name(self):
headers = {'X-Object-Meta-': 'Value'}
self.assert_(constraints.check_metadata(Request.blank('/',
headers=headers), 'object'), HTTPBadRequest)
def test_check_metadata_name_length(self):
name = 'a' * constraints.MAX_META_NAME_LENGTH
headers = {'X-Object-Meta-%s' % name: 'v'}
self.assertEquals(constraints.check_metadata(Request.blank('/',
headers=headers), 'object'), None)
name = 'a' * (constraints.MAX_META_NAME_LENGTH + 1)
headers = {'X-Object-Meta-%s' % name: 'v'}
self.assertEquals(constraints.check_metadata(Request.blank('/',
headers=headers), 'object').status_int, HTTP_BAD_REQUEST)
def test_check_metadata_value_length(self):
value = 'a' * constraints.MAX_META_VALUE_LENGTH
headers = {'X-Object-Meta-Name': value}
self.assertEquals(constraints.check_metadata(Request.blank('/',
headers=headers), 'object'), None)
value = 'a' * (constraints.MAX_META_VALUE_LENGTH + 1)
headers = {'X-Object-Meta-Name': value}
self.assertEquals(constraints.check_metadata(Request.blank('/',
headers=headers), 'object').status_int, HTTP_BAD_REQUEST)
def test_check_metadata_count(self):
headers = {}
for x in xrange(constraints.MAX_META_COUNT):
headers['X-Object-Meta-%d' % x] = 'v'
self.assertEquals(constraints.check_metadata(Request.blank('/',
headers=headers), 'object'), None)
headers['X-Object-Meta-Too-Many'] = 'v'
self.assertEquals(constraints.check_metadata(Request.blank('/',
headers=headers), 'object').status_int, HTTP_BAD_REQUEST)
def test_check_metadata_size(self):
headers = {}
size = 0
chunk = constraints.MAX_META_NAME_LENGTH + \
constraints.MAX_META_VALUE_LENGTH
x = 0
while size + chunk < constraints.MAX_META_OVERALL_SIZE:
headers['X-Object-Meta-%04d%s' %
(x, 'a' * (constraints.MAX_META_NAME_LENGTH - 4))] = \
'v' * constraints.MAX_META_VALUE_LENGTH
size += chunk
x += 1
self.assertEquals(constraints.check_metadata(Request.blank('/',
headers=headers), 'object'), None)
# add two more headers in case adding just one falls exactly on the
# limit (eg one header adds 1024 and the limit is 2048)
headers['X-Object-Meta-%04d%s' %
(x, 'a' * (constraints.MAX_META_NAME_LENGTH - 4))] = \
'v' * constraints.MAX_META_VALUE_LENGTH
headers['X-Object-Meta-%04d%s' %
(x + 1, 'a' * (constraints.MAX_META_NAME_LENGTH - 4))] = \
'v' * constraints.MAX_META_VALUE_LENGTH
self.assertEquals(constraints.check_metadata(Request.blank('/',
headers=headers), 'object').status_int, HTTP_BAD_REQUEST)
def test_check_object_creation_content_length(self):
headers = {'Content-Length': str(constraints.MAX_FILE_SIZE),
'Content-Type': 'text/plain'}
self.assertEquals(constraints.check_object_creation(Request.blank('/',
headers=headers), 'object_name'), None)
headers = {'Content-Length': str(constraints.MAX_FILE_SIZE + 1),
'Content-Type': 'text/plain'}
self.assertEquals(constraints.check_object_creation(
Request.blank('/', headers=headers), 'object_name').status_int,
HTTP_REQUEST_ENTITY_TOO_LARGE)
headers = {'Transfer-Encoding': 'chunked',
'Content-Type': 'text/plain'}
self.assertEquals(constraints.check_object_creation(Request.blank('/',
headers=headers), 'object_name'), None)
headers = {'Content-Type': 'text/plain'}
self.assertEquals(constraints.check_object_creation(
Request.blank('/', headers=headers), 'object_name').status_int,
HTTP_LENGTH_REQUIRED)
def test_check_object_creation_name_length(self):
headers = {'Transfer-Encoding': 'chunked',
'Content-Type': 'text/plain'}
name = 'o' * constraints.MAX_OBJECT_NAME_LENGTH
self.assertEquals(constraints.check_object_creation(Request.blank('/',
headers=headers), name), None)
name = 'o' * (constraints.MAX_OBJECT_NAME_LENGTH + 1)
self.assertEquals(constraints.check_object_creation(
Request.blank('/', headers=headers), name).status_int,
HTTP_BAD_REQUEST)
def test_check_object_creation_content_type(self):
headers = {'Transfer-Encoding': 'chunked',
'Content-Type': 'text/plain'}
self.assertEquals(constraints.check_object_creation(Request.blank('/',
headers=headers), 'object_name'), None)
headers = {'Transfer-Encoding': 'chunked'}
self.assertEquals(constraints.check_object_creation(
Request.blank('/', headers=headers), 'object_name').status_int,
HTTP_BAD_REQUEST)
def test_check_object_creation_bad_content_type(self):
headers = {'Transfer-Encoding': 'chunked',
'Content-Type': '\xff\xff'}
resp = constraints.check_object_creation(
Request.blank('/', headers=headers), 'object_name')
self.assertEquals(resp.status_int, HTTP_BAD_REQUEST)
self.assert_('Content-Type' in resp.body)
def test_check_object_manifest_header(self):
resp = constraints.check_object_creation(Request.blank('/',
headers={'X-Object-Manifest': 'container/prefix', 'Content-Length':
'0', 'Content-Type': 'text/plain'}), 'manifest')
self.assert_(not resp)
resp = constraints.check_object_creation(Request.blank('/',
headers={'X-Object-Manifest': 'container', 'Content-Length': '0',
'Content-Type': 'text/plain'}), 'manifest')
self.assertEquals(resp.status_int, HTTP_BAD_REQUEST)
resp = constraints.check_object_creation(Request.blank('/',
headers={'X-Object-Manifest': '/container/prefix',
'Content-Length': '0', 'Content-Type': 'text/plain'}), 'manifest')
self.assertEquals(resp.status_int, HTTP_BAD_REQUEST)
resp = constraints.check_object_creation(Request.blank('/',
headers={'X-Object-Manifest': 'container/prefix?query=param',
'Content-Length': '0', 'Content-Type': 'text/plain'}), 'manifest')
self.assertEquals(resp.status_int, HTTP_BAD_REQUEST)
resp = constraints.check_object_creation(Request.blank('/',
headers={'X-Object-Manifest': 'container/prefix&query=param',
'Content-Length': '0', 'Content-Type': 'text/plain'}), 'manifest')
self.assertEquals(resp.status_int, HTTP_BAD_REQUEST)
resp = constraints.check_object_creation(Request.blank('/',
headers={'X-Object-Manifest': 'http://host/container/prefix',
'Content-Length': '0', 'Content-Type': 'text/plain'}), 'manifest')
self.assertEquals(resp.status_int, HTTP_BAD_REQUEST)
def test_check_mount(self):
self.assertFalse(constraints.check_mount('', ''))
constraints.os = MockTrue() # mock os module
self.assertTrue(constraints.check_mount('/srv', '1'))
self.assertTrue(constraints.check_mount('/srv', 'foo-bar'))
self.assertTrue(constraints.check_mount('/srv', '003ed03c-242a-4b2f-bee9-395f801d1699'))
self.assertFalse(constraints.check_mount('/srv', 'foo bar'))
self.assertFalse(constraints.check_mount('/srv', 'foo/bar'))
self.assertFalse(constraints.check_mount('/srv', 'foo?bar'))
reload(constraints) # put it back
def test_check_float(self):
self.assertFalse(constraints.check_float(''))
self.assertTrue(constraints.check_float('0'))
def test_check_utf8(self):
unicode_sample = u'\uc77c\uc601'
valid_utf8_str = unicode_sample.encode('utf-8')
invalid_utf8_str = unicode_sample.encode('utf-8')[::-1]
for false_argument in [None,
'',
invalid_utf8_str,
]:
self.assertFalse(constraints.check_utf8(false_argument))
for true_argument in ['this is ascii and utf-8, too',
unicode_sample,
valid_utf8_str]:
self.assertTrue(constraints.check_utf8(true_argument))
if __name__ == '__main__':
unittest.main()