698717d886
Reserve the namespace starting with the NULL byte for internal
use-cases. Backend services will allow path names to include the NULL
byte in urls and validate names in the reserved namespace. Database
services will filter all names starting with the NULL byte from
responses unless the request includes the header:
X-Backend-Allow-Reserved-Names: true
The proxy server will not allow path names to include the NULL byte in
urls unless a middlware has set the X-Backend-Allow-Reserved-Names
header. Middlewares can use the reserved namespace to create objects
and containers that can not be directly manipulated by clients. Any
objects and bytes created in the reserved namespace will be aggregated
to the user's account totals.
When deploying internal proxys developers and operators may configure
the gatekeeper middleware to translate the X-Allow-Reserved-Names header
to the Backend header so they can manipulate the reserved namespace
directly through the normal API.
UpgradeImpact: it's not safe to rollback from this change
Change-Id: If912f71d8b0d03369680374e8233da85d8d38f85
534 lines
23 KiB
Python
534 lines
23 KiB
Python
# Copyright (c) 2010-2012 OpenStack Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Tests for swift.common.request_helpers"""
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import unittest
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from swift.common.swob import Request, HTTPException, HeaderKeyDict
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from swift.common.storage_policy import POLICIES, EC_POLICY, REPL_POLICY
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from swift.common import request_helpers as rh
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from test.unit import patch_policies
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from test.unit.common.test_utils import FakeResponse
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server_types = ['account', 'container', 'object']
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class TestRequestHelpers(unittest.TestCase):
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def test_is_user_meta(self):
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m_type = 'meta'
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for st in server_types:
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self.assertTrue(rh.is_user_meta(st, 'x-%s-%s-foo' % (st, m_type)))
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self.assertFalse(rh.is_user_meta(st, 'x-%s-%s-' % (st, m_type)))
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self.assertFalse(rh.is_user_meta(st, 'x-%s-%sfoo' % (st, m_type)))
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def test_is_sys_meta(self):
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m_type = 'sysmeta'
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for st in server_types:
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self.assertTrue(rh.is_sys_meta(st, 'x-%s-%s-foo' % (st, m_type)))
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self.assertFalse(rh.is_sys_meta(st, 'x-%s-%s-' % (st, m_type)))
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self.assertFalse(rh.is_sys_meta(st, 'x-%s-%sfoo' % (st, m_type)))
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def test_is_sys_or_user_meta(self):
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m_types = ['sysmeta', 'meta']
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for mt in m_types:
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for st in server_types:
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self.assertTrue(rh.is_sys_or_user_meta(
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st, 'x-%s-%s-foo' % (st, mt)))
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self.assertFalse(rh.is_sys_or_user_meta(
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st, 'x-%s-%s-' % (st, mt)))
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self.assertFalse(rh.is_sys_or_user_meta(
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st, 'x-%s-%sfoo' % (st, mt)))
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def test_strip_sys_meta_prefix(self):
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mt = 'sysmeta'
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for st in server_types:
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self.assertEqual(rh.strip_sys_meta_prefix(
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st, 'x-%s-%s-a' % (st, mt)), 'a')
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mt = 'not-sysmeta'
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for st in server_types:
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with self.assertRaises(ValueError):
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rh.strip_sys_meta_prefix(st, 'x-%s-%s-a' % (st, mt))
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def test_strip_user_meta_prefix(self):
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mt = 'meta'
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for st in server_types:
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self.assertEqual(rh.strip_user_meta_prefix(
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st, 'x-%s-%s-a' % (st, mt)), 'a')
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mt = 'not-meta'
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for st in server_types:
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with self.assertRaises(ValueError):
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rh.strip_sys_meta_prefix(st, 'x-%s-%s-a' % (st, mt))
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def test_is_object_transient_sysmeta(self):
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self.assertTrue(rh.is_object_transient_sysmeta(
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'x-object-transient-sysmeta-foo'))
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self.assertFalse(rh.is_object_transient_sysmeta(
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'x-object-transient-sysmeta-'))
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self.assertFalse(rh.is_object_transient_sysmeta(
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'x-object-meatmeta-foo'))
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def test_strip_object_transient_sysmeta_prefix(self):
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mt = 'object-transient-sysmeta'
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self.assertEqual(rh.strip_object_transient_sysmeta_prefix(
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'x-%s-a' % mt), 'a')
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mt = 'object-sysmeta-transient'
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with self.assertRaises(ValueError):
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rh.strip_object_transient_sysmeta_prefix('x-%s-a' % mt)
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def test_remove_items(self):
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src = {'a': 'b',
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'c': 'd'}
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test = lambda x: x == 'a'
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rem = rh.remove_items(src, test)
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self.assertEqual(src, {'c': 'd'})
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self.assertEqual(rem, {'a': 'b'})
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def test_copy_header_subset(self):
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src = {'a': 'b',
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'c': 'd'}
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from_req = Request.blank('/path', environ={}, headers=src)
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to_req = Request.blank('/path', {})
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test = lambda x: x.lower() == 'a'
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rh.copy_header_subset(from_req, to_req, test)
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self.assertTrue('A' in to_req.headers)
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self.assertEqual(to_req.headers['A'], 'b')
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self.assertFalse('c' in to_req.headers)
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self.assertFalse('C' in to_req.headers)
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@patch_policies(with_ec_default=True)
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def test_get_name_and_placement_object_req(self):
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path = '/device/part/account/container/object'
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req = Request.blank(path, headers={
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'X-Backend-Storage-Policy-Index': '0'})
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device, part, account, container, obj, policy = \
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rh.get_name_and_placement(req, 5, 5, True)
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self.assertEqual(device, 'device')
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self.assertEqual(part, 'part')
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self.assertEqual(account, 'account')
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self.assertEqual(container, 'container')
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self.assertEqual(obj, 'object')
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self.assertEqual(policy, POLICIES[0])
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self.assertEqual(policy.policy_type, EC_POLICY)
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req.headers['X-Backend-Storage-Policy-Index'] = 1
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device, part, account, container, obj, policy = \
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rh.get_name_and_placement(req, 5, 5, True)
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self.assertEqual(device, 'device')
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self.assertEqual(part, 'part')
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self.assertEqual(account, 'account')
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self.assertEqual(container, 'container')
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self.assertEqual(obj, 'object')
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self.assertEqual(policy, POLICIES[1])
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self.assertEqual(policy.policy_type, REPL_POLICY)
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req.headers['X-Backend-Storage-Policy-Index'] = 'foo'
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with self.assertRaises(HTTPException) as raised:
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device, part, account, container, obj, policy = \
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rh.get_name_and_placement(req, 5, 5, True)
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e = raised.exception
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self.assertEqual(e.status_int, 503)
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self.assertEqual(str(e), '503 Service Unavailable')
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self.assertEqual(e.body, b"No policy with index foo")
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@patch_policies(with_ec_default=True)
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def test_get_name_and_placement_object_replication(self):
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# yup, suffixes are sent '-'.joined in the path
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path = '/device/part/012-345-678-9ab-cde'
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req = Request.blank(path, headers={
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'X-Backend-Storage-Policy-Index': '0'})
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device, partition, suffix_parts, policy = \
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rh.get_name_and_placement(req, 2, 3, True)
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self.assertEqual(device, 'device')
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self.assertEqual(partition, 'part')
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self.assertEqual(suffix_parts, '012-345-678-9ab-cde')
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self.assertEqual(policy, POLICIES[0])
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self.assertEqual(policy.policy_type, EC_POLICY)
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path = '/device/part'
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req = Request.blank(path, headers={
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'X-Backend-Storage-Policy-Index': '1'})
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device, partition, suffix_parts, policy = \
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rh.get_name_and_placement(req, 2, 3, True)
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self.assertEqual(device, 'device')
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self.assertEqual(partition, 'part')
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self.assertIsNone(suffix_parts) # false-y
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self.assertEqual(policy, POLICIES[1])
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self.assertEqual(policy.policy_type, REPL_POLICY)
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path = '/device/part/' # with a trailing slash
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req = Request.blank(path, headers={
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'X-Backend-Storage-Policy-Index': '1'})
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device, partition, suffix_parts, policy = \
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rh.get_name_and_placement(req, 2, 3, True)
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self.assertEqual(device, 'device')
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self.assertEqual(partition, 'part')
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self.assertEqual(suffix_parts, '') # still false-y
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self.assertEqual(policy, POLICIES[1])
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self.assertEqual(policy.policy_type, REPL_POLICY)
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def test_validate_internal_name(self):
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self.assertIsNone(rh._validate_internal_name('foo'))
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self.assertIsNone(rh._validate_internal_name(
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rh.get_reserved_name('foo')))
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self.assertIsNone(rh._validate_internal_name(
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rh.get_reserved_name('foo', 'bar')))
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self.assertIsNone(rh._validate_internal_name(''))
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self.assertIsNone(rh._validate_internal_name(rh.RESERVED))
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def test_invalid_reserved_name(self):
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with self.assertRaises(HTTPException) as raised:
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rh._validate_internal_name('foo' + rh.RESERVED)
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e = raised.exception
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self.assertEqual(e.status_int, 400)
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self.assertEqual(str(e), '400 Bad Request')
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self.assertEqual(e.body, b"Invalid reserved-namespace name")
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def test_validate_internal_account(self):
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self.assertIsNone(rh.validate_internal_account('AUTH_foo'))
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self.assertIsNone(rh.validate_internal_account(
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rh.get_reserved_name('AUTH_foo')))
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with self.assertRaises(HTTPException) as raised:
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rh.validate_internal_account('AUTH_foo' + rh.RESERVED)
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e = raised.exception
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self.assertEqual(e.status_int, 400)
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self.assertEqual(str(e), '400 Bad Request')
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self.assertEqual(e.body, b"Invalid reserved-namespace account")
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def test_validate_internal_container(self):
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self.assertIsNone(rh.validate_internal_container('AUTH_foo', 'bar'))
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self.assertIsNone(rh.validate_internal_container(
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rh.get_reserved_name('AUTH_foo'), 'bar'))
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self.assertIsNone(rh.validate_internal_container(
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'foo', rh.get_reserved_name('bar')))
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self.assertIsNone(rh.validate_internal_container(
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rh.get_reserved_name('AUTH_foo'), rh.get_reserved_name('bar')))
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with self.assertRaises(HTTPException) as raised:
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rh.validate_internal_container('AUTH_foo' + rh.RESERVED, 'bar')
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e = raised.exception
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self.assertEqual(e.status_int, 400)
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self.assertEqual(str(e), '400 Bad Request')
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self.assertEqual(e.body, b"Invalid reserved-namespace account")
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with self.assertRaises(HTTPException) as raised:
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rh.validate_internal_container('AUTH_foo', 'bar' + rh.RESERVED)
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e = raised.exception
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self.assertEqual(e.status_int, 400)
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self.assertEqual(str(e), '400 Bad Request')
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self.assertEqual(e.body, b"Invalid reserved-namespace container")
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# These should always be operating on split_path outputs so this
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# shouldn't really be an issue, but just in case...
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for acct in ('', None):
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with self.assertRaises(ValueError) as raised:
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rh.validate_internal_container(
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acct, 'bar')
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self.assertEqual(raised.exception.args[0], 'Account is required')
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def test_validate_internal_object(self):
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self.assertIsNone(rh.validate_internal_obj('AUTH_foo', 'bar', 'baz'))
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self.assertIsNone(rh.validate_internal_obj(
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rh.get_reserved_name('AUTH_foo'), 'bar', 'baz'))
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for acct in ('AUTH_foo', rh.get_reserved_name('AUTH_foo')):
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self.assertIsNone(rh.validate_internal_obj(
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acct,
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rh.get_reserved_name('bar'),
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rh.get_reserved_name('baz')))
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for acct in ('AUTH_foo', rh.get_reserved_name('AUTH_foo')):
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with self.assertRaises(HTTPException) as raised:
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rh.validate_internal_obj(
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acct, 'bar', rh.get_reserved_name('baz'))
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e = raised.exception
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self.assertEqual(e.status_int, 400)
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self.assertEqual(str(e), '400 Bad Request')
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self.assertEqual(e.body, b"Invalid reserved-namespace object "
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b"in user-namespace container")
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for acct in ('AUTH_foo', rh.get_reserved_name('AUTH_foo')):
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with self.assertRaises(HTTPException) as raised:
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rh.validate_internal_obj(
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acct, rh.get_reserved_name('bar'), 'baz')
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e = raised.exception
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self.assertEqual(e.status_int, 400)
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self.assertEqual(str(e), '400 Bad Request')
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self.assertEqual(e.body, b"Invalid user-namespace object "
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b"in reserved-namespace container")
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# These should always be operating on split_path outputs so this
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# shouldn't really be an issue, but just in case...
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for acct in ('', None):
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with self.assertRaises(ValueError) as raised:
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rh.validate_internal_obj(
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acct, 'bar', 'baz')
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self.assertEqual(raised.exception.args[0], 'Account is required')
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for cont in ('', None):
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with self.assertRaises(ValueError) as raised:
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rh.validate_internal_obj(
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'AUTH_foo', cont, 'baz')
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self.assertEqual(raised.exception.args[0], 'Container is required')
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def test_invalid_reserved_names(self):
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with self.assertRaises(HTTPException) as raised:
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rh.validate_internal_obj('AUTH_foo' + rh.RESERVED, 'bar', 'baz')
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e = raised.exception
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self.assertEqual(e.status_int, 400)
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self.assertEqual(str(e), '400 Bad Request')
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self.assertEqual(e.body, b"Invalid reserved-namespace account")
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with self.assertRaises(HTTPException) as raised:
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rh.validate_internal_obj('AUTH_foo', 'bar' + rh.RESERVED, 'baz')
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e = raised.exception
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self.assertEqual(e.status_int, 400)
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self.assertEqual(str(e), '400 Bad Request')
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self.assertEqual(e.body, b"Invalid reserved-namespace container")
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with self.assertRaises(HTTPException) as raised:
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rh.validate_internal_obj('AUTH_foo', 'bar', 'baz' + rh.RESERVED)
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e = raised.exception
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self.assertEqual(e.status_int, 400)
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self.assertEqual(str(e), '400 Bad Request')
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self.assertEqual(e.body, b"Invalid reserved-namespace object")
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def test_get_reserved_name(self):
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expectations = {
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tuple(): rh.RESERVED,
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('',): rh.RESERVED,
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('foo',): rh.RESERVED + 'foo',
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('foo', 'bar'): rh.RESERVED + 'foo' + rh.RESERVED + 'bar',
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('foo', ''): rh.RESERVED + 'foo' + rh.RESERVED,
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('', ''): rh.RESERVED * 2,
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}
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failures = []
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for parts, expected in expectations.items():
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name = rh.get_reserved_name(*parts)
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if name != expected:
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failures.append('get given %r expected %r != %r' % (
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parts, expected, name))
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if failures:
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self.fail('Unexpected reults:\n' + '\n'.join(failures))
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def test_invalid_get_reserved_name(self):
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self.assertRaises(ValueError)
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with self.assertRaises(ValueError) as ctx:
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rh.get_reserved_name('foo', rh.RESERVED + 'bar', 'baz')
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self.assertEqual(str(ctx.exception),
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'Invalid reserved part in components')
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def test_split_reserved_name(self):
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expectations = {
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rh.RESERVED: ('',),
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rh.RESERVED + 'foo': ('foo',),
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rh.RESERVED + 'foo' + rh.RESERVED + 'bar': ('foo', 'bar'),
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rh.RESERVED + 'foo' + rh.RESERVED: ('foo', ''),
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rh.RESERVED * 2: ('', ''),
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}
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failures = []
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for name, expected in expectations.items():
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parts = rh.split_reserved_name(name)
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if tuple(parts) != expected:
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failures.append('split given %r expected %r != %r' % (
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name, expected, parts))
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if failures:
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self.fail('Unexpected reults:\n' + '\n'.join(failures))
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def test_invalid_split_reserved_name(self):
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self.assertRaises(ValueError)
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with self.assertRaises(ValueError) as ctx:
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rh.split_reserved_name('foo')
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self.assertEqual(str(ctx.exception),
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'Invalid reserved name')
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class TestHTTPResponseToDocumentIters(unittest.TestCase):
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def test_200(self):
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fr = FakeResponse(
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200,
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{'Content-Length': '10', 'Content-Type': 'application/lunch'},
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b'sandwiches')
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doc_iters = rh.http_response_to_document_iters(fr)
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first_byte, last_byte, length, headers, body = next(doc_iters)
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self.assertEqual(first_byte, 0)
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self.assertEqual(last_byte, 9)
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self.assertEqual(length, 10)
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header_dict = HeaderKeyDict(headers)
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self.assertEqual(header_dict.get('Content-Length'), '10')
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self.assertEqual(header_dict.get('Content-Type'), 'application/lunch')
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self.assertEqual(body.read(), b'sandwiches')
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self.assertRaises(StopIteration, next, doc_iters)
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fr = FakeResponse(
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200,
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{'Transfer-Encoding': 'chunked',
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'Content-Type': 'application/lunch'},
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b'sandwiches')
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doc_iters = rh.http_response_to_document_iters(fr)
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first_byte, last_byte, length, headers, body = next(doc_iters)
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self.assertEqual(first_byte, 0)
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self.assertIsNone(last_byte)
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self.assertIsNone(length)
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header_dict = HeaderKeyDict(headers)
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self.assertEqual(header_dict.get('Transfer-Encoding'), 'chunked')
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self.assertEqual(header_dict.get('Content-Type'), 'application/lunch')
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self.assertEqual(body.read(), b'sandwiches')
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self.assertRaises(StopIteration, next, doc_iters)
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def test_206_single_range(self):
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fr = FakeResponse(
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206,
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{'Content-Length': '8', 'Content-Type': 'application/lunch',
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'Content-Range': 'bytes 1-8/10'},
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b'andwiche')
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doc_iters = rh.http_response_to_document_iters(fr)
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first_byte, last_byte, length, headers, body = next(doc_iters)
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self.assertEqual(first_byte, 1)
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self.assertEqual(last_byte, 8)
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self.assertEqual(length, 10)
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header_dict = HeaderKeyDict(headers)
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self.assertEqual(header_dict.get('Content-Length'), '8')
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self.assertEqual(header_dict.get('Content-Type'), 'application/lunch')
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self.assertEqual(body.read(), b'andwiche')
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self.assertRaises(StopIteration, next, doc_iters)
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# Chunked response should be treated in the same way as non-chunked one
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fr = FakeResponse(
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206,
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{'Transfer-Encoding': 'chunked',
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'Content-Type': 'application/lunch',
|
|
'Content-Range': 'bytes 1-8/10'},
|
|
b'andwiche')
|
|
|
|
doc_iters = rh.http_response_to_document_iters(fr)
|
|
first_byte, last_byte, length, headers, body = next(doc_iters)
|
|
self.assertEqual(first_byte, 1)
|
|
self.assertEqual(last_byte, 8)
|
|
self.assertEqual(length, 10)
|
|
header_dict = HeaderKeyDict(headers)
|
|
self.assertEqual(header_dict.get('Content-Type'), 'application/lunch')
|
|
self.assertEqual(body.read(), b'andwiche')
|
|
|
|
self.assertRaises(StopIteration, next, doc_iters)
|
|
|
|
def test_206_multiple_ranges(self):
|
|
fr = FakeResponse(
|
|
206,
|
|
{'Content-Type': 'multipart/byteranges; boundary=asdfasdfasdf'},
|
|
(b"--asdfasdfasdf\r\n"
|
|
b"Content-Type: application/lunch\r\n"
|
|
b"Content-Range: bytes 0-3/10\r\n"
|
|
b"\r\n"
|
|
b"sand\r\n"
|
|
b"--asdfasdfasdf\r\n"
|
|
b"Content-Type: application/lunch\r\n"
|
|
b"Content-Range: bytes 6-9/10\r\n"
|
|
b"\r\n"
|
|
b"ches\r\n"
|
|
b"--asdfasdfasdf--"))
|
|
|
|
doc_iters = rh.http_response_to_document_iters(fr)
|
|
|
|
first_byte, last_byte, length, headers, body = next(doc_iters)
|
|
self.assertEqual(first_byte, 0)
|
|
self.assertEqual(last_byte, 3)
|
|
self.assertEqual(length, 10)
|
|
header_dict = HeaderKeyDict(headers)
|
|
self.assertEqual(header_dict.get('Content-Type'), 'application/lunch')
|
|
self.assertEqual(body.read(), b'sand')
|
|
|
|
first_byte, last_byte, length, headers, body = next(doc_iters)
|
|
self.assertEqual(first_byte, 6)
|
|
self.assertEqual(last_byte, 9)
|
|
self.assertEqual(length, 10)
|
|
header_dict = HeaderKeyDict(headers)
|
|
self.assertEqual(header_dict.get('Content-Type'), 'application/lunch')
|
|
self.assertEqual(body.read(), b'ches')
|
|
|
|
self.assertRaises(StopIteration, next, doc_iters)
|
|
|
|
def test_update_etag_is_at_header(self):
|
|
# start with no existing X-Backend-Etag-Is-At
|
|
req = Request.blank('/v/a/c/o')
|
|
rh.update_etag_is_at_header(req, 'X-Object-Sysmeta-My-Etag')
|
|
self.assertEqual('X-Object-Sysmeta-My-Etag',
|
|
req.headers['X-Backend-Etag-Is-At'])
|
|
# add another alternate
|
|
rh.update_etag_is_at_header(req, 'X-Object-Sysmeta-Ec-Etag')
|
|
self.assertEqual('X-Object-Sysmeta-My-Etag,X-Object-Sysmeta-Ec-Etag',
|
|
req.headers['X-Backend-Etag-Is-At'])
|
|
with self.assertRaises(ValueError) as cm:
|
|
rh.update_etag_is_at_header(req, 'X-Object-Sysmeta-,-Bad')
|
|
self.assertEqual('Header name must not contain commas',
|
|
cm.exception.args[0])
|
|
|
|
def test_resolve_etag_is_at_header(self):
|
|
def do_test():
|
|
req = Request.blank('/v/a/c/o')
|
|
# ok to have no X-Backend-Etag-Is-At
|
|
self.assertIsNone(rh.resolve_etag_is_at_header(req, metadata))
|
|
|
|
# ok to have no matching metadata
|
|
req.headers['X-Backend-Etag-Is-At'] = 'X-Not-There'
|
|
self.assertIsNone(rh.resolve_etag_is_at_header(req, metadata))
|
|
|
|
# selects from metadata
|
|
req.headers['X-Backend-Etag-Is-At'] = 'X-Object-Sysmeta-Ec-Etag'
|
|
self.assertEqual('an etag value',
|
|
rh.resolve_etag_is_at_header(req, metadata))
|
|
req.headers['X-Backend-Etag-Is-At'] = 'X-Object-Sysmeta-My-Etag'
|
|
self.assertEqual('another etag value',
|
|
rh.resolve_etag_is_at_header(req, metadata))
|
|
|
|
# first in list takes precedence
|
|
req.headers['X-Backend-Etag-Is-At'] = \
|
|
'X-Object-Sysmeta-My-Etag,X-Object-Sysmeta-Ec-Etag'
|
|
self.assertEqual('another etag value',
|
|
rh.resolve_etag_is_at_header(req, metadata))
|
|
|
|
# non-existent alternates are passed over
|
|
req.headers['X-Backend-Etag-Is-At'] = \
|
|
'X-Bogus,X-Object-Sysmeta-My-Etag,X-Object-Sysmeta-Ec-Etag'
|
|
self.assertEqual('another etag value',
|
|
rh.resolve_etag_is_at_header(req, metadata))
|
|
|
|
# spaces in list are ok
|
|
alts = 'X-Foo, X-Object-Sysmeta-My-Etag , X-Object-Sysmeta-Ec-Etag'
|
|
req.headers['X-Backend-Etag-Is-At'] = alts
|
|
self.assertEqual('another etag value',
|
|
rh.resolve_etag_is_at_header(req, metadata))
|
|
|
|
# lower case in list is ok
|
|
alts = alts.lower()
|
|
req.headers['X-Backend-Etag-Is-At'] = alts
|
|
self.assertEqual('another etag value',
|
|
rh.resolve_etag_is_at_header(req, metadata))
|
|
|
|
# upper case in list is ok
|
|
alts = alts.upper()
|
|
req.headers['X-Backend-Etag-Is-At'] = alts
|
|
self.assertEqual('another etag value',
|
|
rh.resolve_etag_is_at_header(req, metadata))
|
|
|
|
metadata = {'X-Object-Sysmeta-Ec-Etag': 'an etag value',
|
|
'X-Object-Sysmeta-My-Etag': 'another etag value'}
|
|
do_test()
|
|
metadata = dict((k.lower(), v) for k, v in metadata.items())
|
|
do_test()
|
|
metadata = dict((k.upper(), v) for k, v in metadata.items())
|
|
do_test()
|