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# 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 os
import re
from oslo_messaging._drivers.common import RPCException
from oslo_messaging._drivers.zmq_driver import zmq_serializer
from oslo_messaging.tests import utils as test_utils
class TestZmqSerializer(test_utils.BaseTestCase):
def test_message_without_topic_raises_RPCException(self):
# The topic is the 4th element of the message.
msg_without_topic = ['only', 'three', 'parts']
expected = "Message did not contain a topic: %s" % msg_without_topic
with self.assertRaisesRegexp(RPCException, re.escape(expected)):
zmq_serializer.get_topic_from_call_message(msg_without_topic)
def test_invalid_topic_format_raises_RPCException(self):
invalid_topic = "no dots to split on, so not index-able".encode('utf8')
bad_message = ['', '', '', invalid_topic]
expected_msg = "Topic was not formatted correctly: %s"
expected_msg = expected_msg % invalid_topic.decode('utf8')
with self.assertRaisesRegexp(RPCException, expected_msg):
zmq_serializer.get_topic_from_call_message(bad_message)
def test_py3_decodes_bytes_correctly(self):
message = ['', '', '', b'topic.ipaddress']
actual, _ = zmq_serializer.get_topic_from_call_message(message)
self.assertEqual('topic', actual)
def test_bad_characters_in_topic_raise_RPCException(self):
# handle unexpected os path separators:
unexpected_evil = '<'
os.path.sep = unexpected_evil
unexpected_alt_evil = '>'
os.path.altsep = unexpected_alt_evil
evil_chars = [unexpected_evil, unexpected_alt_evil, '\\', '/']
for evil_char in evil_chars:
evil_topic = '%s%s%s' % ('trust.me', evil_char, 'please')
evil_topic = evil_topic.encode('utf8')
evil_message = ['', '', '', evil_topic]
expected_msg = "Topic contained dangerous characters: %s"
expected_msg = expected_msg % evil_topic.decode('utf8')
expected_msg = re.escape(expected_msg)
with self.assertRaisesRegexp(RPCException, expected_msg):
zmq_serializer.get_topic_from_call_message(evil_message)
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