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#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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 __future__ import absolute_import
from threading import Thread, Event
from uuid import uuid4
from proton import Message, Url, Array, UNDESCRIBED, Data, symbol, ConnectionException
from proton.handlers import MessagingHandler
from proton.reactor import Container
from proton.utils import SyncRequestResponse, BlockingConnection
from .common import Test, free_tcp_port
from .common import ensureCanTestExtendedSASL
CONNECTION_PROPERTIES = {u'connection': u'properties'}
OFFERED_CAPABILITIES = Array(UNDESCRIBED, Data.SYMBOL, symbol("O_one"), symbol("O_two"), symbol("O_three"))
DESIRED_CAPABILITIES = Array(UNDESCRIBED, Data.SYMBOL, symbol("D_one"), symbol("D_two"), symbol("D_three"))
ANONYMOUS = 'ANONYMOUS'
EXTERNAL = 'EXTERNAL'
class EchoServer(MessagingHandler, Thread):
"""
Simple echo server that echos messages to their reply-to. Runs in a thread.
Will only accept a single connection and shut down when that connection closes.
"""
def __init__(self, url, timeout):
MessagingHandler.__init__(self)
Thread.__init__(self)
self.daemon = True
self.timeout = timeout
self.url = url
self.senders = {}
self.container = None
self.event = Event()
def on_start(self, event):
self.acceptor = event.container.listen(self.url)
self.container = event.container
self.event.set()
def on_link_opening(self, event):
if event.link.is_sender:
if event.link.remote_source and event.link.remote_source.dynamic:
event.link.source.address = str(uuid4())
self.senders[event.link.source.address] = event.link
def on_message(self, event):
m = event.message
sender = self.senders.get(m.reply_to)
if sender:
reply = Message(address=m.reply_to, body=m.body, correlation_id=m.correlation_id)
sender.send(reply)
def on_connection_closing(self, event):
self.acceptor.close()
def on_transport_error(self, event):
self.acceptor.close()
def run(self):
Container(self).run()
def wait(self):
self.event.wait(self.timeout)
class ConnPropertiesServer(EchoServer):
def __init__(self, url, timeout):
EchoServer.__init__(self, url, timeout)
self.properties_received = False
self.offered_capabilities_received = False
self.desired_capabilities_received = False
def on_connection_opening(self, event):
conn = event.connection
if conn.remote_properties == CONNECTION_PROPERTIES:
self.properties_received = True
if conn.remote_offered_capabilities == OFFERED_CAPABILITIES:
self.offered_capabilities_received = True
if conn.remote_desired_capabilities == DESIRED_CAPABILITIES:
self.desired_capabilities_received = True
class SyncRequestResponseTest(Test):
"""Test SyncRequestResponse"""
def test_request_response(self):
ensureCanTestExtendedSASL()
def test(name, address="x"):
for i in range(5):
body = "%s%s" % (name, i)
response = client.call(Message(address=address, body=body))
self.assertEquals(response.address, client.reply_to)
self.assertEquals(response.body, body)
server = EchoServer(Url(host="127.0.0.1", port=free_tcp_port()), self.timeout)
server.start()
server.wait()
connection = BlockingConnection(server.url, timeout=self.timeout)
client = SyncRequestResponse(connection)
try:
test("foo") # Simple request/resposne
finally:
client.connection.close()
server.join(timeout=self.timeout)
def test_connection_properties(self):
ensureCanTestExtendedSASL()
server = ConnPropertiesServer(Url(host="127.0.0.1", port=free_tcp_port()), timeout=self.timeout)
server.start()
server.wait()
connection = BlockingConnection(server.url, timeout=self.timeout, properties=CONNECTION_PROPERTIES,
offered_capabilities=OFFERED_CAPABILITIES, desired_capabilities=DESIRED_CAPABILITIES)
client = SyncRequestResponse(connection)
client.connection.close()
server.join(timeout=self.timeout)
self.assertEquals(server.properties_received, True)
self.assertEquals(server.offered_capabilities_received, True)
self.assertEquals(server.desired_capabilities_received, True)
def test_allowed_mechs_external(self):
# All this test does it make sure that if we pass allowed_mechs to BlockingConnection, it is actually used.
port = free_tcp_port()
server = ConnPropertiesServer(Url(host="127.0.0.1", port=port), timeout=self.timeout)
server.start()
server.wait()
try:
# This will cause an exception because we are specifying allowed_mechs as
# EXTERNAL. The SASL handshake will fail because the server is not setup
# to handle EXTERNAL
connection = BlockingConnection(server.url, timeout=self.timeout, properties=CONNECTION_PROPERTIES,
offered_capabilities=OFFERED_CAPABILITIES, desired_capabilities=DESIRED_CAPABILITIES, allowed_mechs=EXTERNAL)
self.fail("Expected ConnectionException")
except ConnectionException as e:
self.assertTrue('amqp:unauthorized-access' in str(e), "expected unauthorized-access")
server.join(timeout=self.timeout)
def test_allowed_mechs_anonymous(self):
# All this test does it make sure that if we pass allowed_mechs to BlockingConnection, it is actually used.
server = ConnPropertiesServer(Url(host="127.0.0.1", port=free_tcp_port()), timeout=self.timeout)
server.start()
server.wait()
# An ANONYMOUS allowed_mechs will work, anonymous connections are allowed by ConnPropertiesServer
connection = BlockingConnection(server.url, timeout=self.timeout, properties=CONNECTION_PROPERTIES,
offered_capabilities=OFFERED_CAPABILITIES, desired_capabilities=DESIRED_CAPABILITIES, allowed_mechs=ANONYMOUS)
client = SyncRequestResponse(connection)
client.connection.close()
server.join(timeout=self.timeout)
self.assertEquals(server.properties_received, True)
self.assertEquals(server.offered_capabilities_received, True)
self.assertEquals(server.desired_capabilities_received, True)
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