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-rw-r--r--src/leap/common/events/auth.py100
-rw-r--r--src/leap/common/events/catalog.py85
-rw-r--r--src/leap/common/events/client.py23
-rw-r--r--src/leap/common/events/examples/README.txt49
-rw-r--r--src/leap/common/events/examples/client.py2
-rw-r--r--src/leap/common/events/examples/server.py4
-rw-r--r--src/leap/common/events/server.py24
-rw-r--r--src/leap/common/events/tests/test_auth.py64
-rw-r--r--src/leap/common/events/tests/test_events.py203
-rw-r--r--src/leap/common/events/txclient.py10
-rw-r--r--src/leap/common/events/zmq_components.py147
11 files changed, 571 insertions, 140 deletions
diff --git a/src/leap/common/events/auth.py b/src/leap/common/events/auth.py
new file mode 100644
index 0000000..db217ca
--- /dev/null
+++ b/src/leap/common/events/auth.py
@@ -0,0 +1,100 @@
+# -*- coding: utf-8 -*-
+# auth.py
+# Copyright (C) 2016 LEAP
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+"""
+ZAP authentication, twisted style.
+"""
+from zmq import PAIR
+from zmq.auth.base import Authenticator, VERSION
+from txzmq.connection import ZmqConnection
+from zmq.utils.strtypes import b, u
+
+from twisted.python import log
+
+from txzmq.connection import ZmqEndpoint, ZmqEndpointType
+
+
+class TxAuthenticator(ZmqConnection):
+
+ """
+ This does not implement the whole ZAP protocol, but the bare minimum that
+ we need.
+ """
+
+ socketType = PAIR
+ address = 'inproc://zeromq.zap.01'
+ encoding = 'utf-8'
+
+ def __init__(self, factory, *args, **kw):
+ super(TxAuthenticator, self).__init__(factory, *args, **kw)
+ self.authenticator = Authenticator(factory.context)
+ self.authenticator._send_zap_reply = self._send_zap_reply
+
+ def start(self):
+ endpoint = ZmqEndpoint(ZmqEndpointType.bind, self.address)
+ self.addEndpoints([endpoint])
+
+ def messageReceived(self, msg):
+
+ command = msg[0]
+
+ if command == b'ALLOW':
+ addresses = [u(m, self.encoding) for m in msg[1:]]
+ try:
+ self.authenticator.allow(*addresses)
+ except Exception as e:
+ log.err("Failed to allow %s", addresses)
+
+ elif command == b'CURVE':
+ domain = u(msg[1], self.encoding)
+ location = u(msg[2], self.encoding)
+ self.authenticator.configure_curve(domain, location)
+
+ def _send_zap_reply(self, request_id, status_code, status_text,
+ user_id='user'):
+ """
+ Send a ZAP reply to finish the authentication.
+ """
+ user_id = user_id if status_code == b'200' else b''
+ if isinstance(user_id, unicode):
+ user_id = user_id.encode(self.encoding, 'replace')
+ metadata = b'' # not currently used
+ reply = [VERSION, request_id, status_code, status_text,
+ user_id, metadata]
+ self.send(reply)
+
+ def shutdown(self):
+ if self.factory:
+ super(TxAuthenticator, self).shutdown()
+
+
+class TxAuthenticationRequest(ZmqConnection):
+
+ socketType = PAIR
+ address = 'inproc://zeromq.zap.01'
+ encoding = 'utf-8'
+
+ def start(self):
+ endpoint = ZmqEndpoint(ZmqEndpointType.connect, self.address)
+ self.addEndpoints([endpoint])
+
+ def allow(self, *addresses):
+ self.send([b'ALLOW'] + [b(a, self.encoding) for a in addresses])
+
+ def configure_curve(self, domain='*', location=''):
+ domain = b(domain, self.encoding)
+ location = b(location, self.encoding)
+ self.send([b'CURVE', domain, location])
diff --git a/src/leap/common/events/catalog.py b/src/leap/common/events/catalog.py
index 8bddd2c..9a834b2 100644
--- a/src/leap/common/events/catalog.py
+++ b/src/leap/common/events/catalog.py
@@ -24,49 +24,54 @@ Events catalog.
EVENTS = [
"CLIENT_SESSION_ID",
"CLIENT_UID",
- "IMAP_CLIENT_LOGIN",
- "IMAP_SERVICE_FAILED_TO_START",
- "IMAP_SERVICE_STARTED",
- "IMAP_UNHANDLED_ERROR",
- "KEYMANAGER_DONE_UPLOADING_KEYS",
- "KEYMANAGER_FINISHED_KEY_GENERATION",
- "KEYMANAGER_KEY_FOUND",
- "KEYMANAGER_KEY_NOT_FOUND",
- "KEYMANAGER_LOOKING_FOR_KEY",
- "KEYMANAGER_STARTED_KEY_GENERATION",
- "MAIL_FETCHED_INCOMING",
- "MAIL_MSG_DECRYPTED",
- "MAIL_MSG_DELETED_INCOMING",
- "MAIL_MSG_PROCESSING",
- "MAIL_MSG_SAVED_LOCALLY",
- "MAIL_UNREAD_MESSAGES",
"RAISE_WINDOW",
- "SMTP_CONNECTION_LOST",
- "SMTP_END_ENCRYPT_AND_SIGN",
- "SMTP_END_SIGN",
- "SMTP_RECIPIENT_ACCEPTED_ENCRYPTED",
- "SMTP_RECIPIENT_ACCEPTED_UNENCRYPTED",
- "SMTP_RECIPIENT_REJECTED",
- "SMTP_SEND_MESSAGE_ERROR",
- "SMTP_SEND_MESSAGE_START",
- "SMTP_SEND_MESSAGE_SUCCESS",
- "SMTP_SERVICE_FAILED_TO_START",
- "SMTP_SERVICE_STARTED",
- "SMTP_START_ENCRYPT_AND_SIGN",
- "SMTP_START_SIGN",
- "SOLEDAD_CREATING_KEYS",
- "SOLEDAD_DONE_CREATING_KEYS",
- "SOLEDAD_DONE_DATA_SYNC",
- "SOLEDAD_DONE_DOWNLOADING_KEYS",
- "SOLEDAD_DONE_UPLOADING_KEYS",
- "SOLEDAD_DOWNLOADING_KEYS",
- "SOLEDAD_INVALID_AUTH_TOKEN",
- "SOLEDAD_NEW_DATA_TO_SYNC",
- "SOLEDAD_SYNC_RECEIVE_STATUS",
- "SOLEDAD_SYNC_SEND_STATUS",
- "SOLEDAD_UPLOADING_KEYS",
"UPDATER_DONE_UPDATING",
"UPDATER_NEW_UPDATES",
+
+ "KEYMANAGER_DONE_UPLOADING_KEYS", # (address)
+ "KEYMANAGER_FINISHED_KEY_GENERATION", # (address)
+ "KEYMANAGER_KEY_FOUND", # (address)
+ "KEYMANAGER_KEY_NOT_FOUND", # (address)
+ "KEYMANAGER_LOOKING_FOR_KEY", # (address)
+ "KEYMANAGER_STARTED_KEY_GENERATION", # (address)
+
+ "SOLEDAD_CREATING_KEYS", # {uuid, userid}
+ "SOLEDAD_DONE_CREATING_KEYS", # {uuid, userid}
+ "SOLEDAD_DONE_DATA_SYNC", # {uuid, userid}
+ "SOLEDAD_DONE_DOWNLOADING_KEYS", # {uuid, userid}
+ "SOLEDAD_DONE_UPLOADING_KEYS", # {uuid, userid}
+ "SOLEDAD_DOWNLOADING_KEYS", # {uuid, userid}
+ "SOLEDAD_INVALID_AUTH_TOKEN", # {uuid, userid}
+ "SOLEDAD_SYNC_RECEIVE_STATUS", # {uuid, userid}
+ "SOLEDAD_SYNC_SEND_STATUS", # {uuid, userid}
+ "SOLEDAD_UPLOADING_KEYS", # {uuid, userid}
+ "SOLEDAD_NEW_DATA_TO_SYNC",
+
+ "MAIL_FETCHED_INCOMING", # (userid)
+ "MAIL_MSG_DECRYPTED", # (userid)
+ "MAIL_MSG_DELETED_INCOMING", # (userid)
+ "MAIL_MSG_PROCESSING", # (userid)
+ "MAIL_MSG_SAVED_LOCALLY", # (userid)
+ "MAIL_UNREAD_MESSAGES", # (userid, number)
+
+ "IMAP_SERVICE_STARTED",
+ "IMAP_SERVICE_FAILED_TO_START",
+ "IMAP_UNHANDLED_ERROR",
+ "IMAP_CLIENT_LOGIN", # (username)
+
+ "SMTP_SERVICE_STARTED",
+ "SMTP_SERVICE_FAILED_TO_START",
+ "SMTP_START_ENCRYPT_AND_SIGN", # (from_addr)
+ "SMTP_END_ENCRYPT_AND_SIGN", # (from_addr)
+ "SMTP_START_SIGN", # (from_addr)
+ "SMTP_END_SIGN", # (from_addr)
+ "SMTP_SEND_MESSAGE_START", # (from_addr)
+ "SMTP_SEND_MESSAGE_SUCCESS", # (from_addr)
+ "SMTP_RECIPIENT_ACCEPTED_ENCRYPTED", # (userid, dest)
+ "SMTP_RECIPIENT_ACCEPTED_UNENCRYPTED", # (userid, dest)
+ "SMTP_CONNECTION_LOST", # (userid, dest)
+ "SMTP_RECIPIENT_REJECTED", # (userid, dest)
+ "SMTP_SEND_MESSAGE_ERROR", # (userid, dest)
]
diff --git a/src/leap/common/events/client.py b/src/leap/common/events/client.py
index 60d24bc..78617de 100644
--- a/src/leap/common/events/client.py
+++ b/src/leap/common/events/client.py
@@ -63,14 +63,18 @@ logger = logging.getLogger(__name__)
_emit_addr = EMIT_ADDR
_reg_addr = REG_ADDR
+_factory = None
+_enable_curve = True
-def configure_client(emit_addr, reg_addr):
- global _emit_addr, _reg_addr
+def configure_client(emit_addr, reg_addr, factory=None, enable_curve=True):
+ global _emit_addr, _reg_addr, _factory, _enable_curve
logger.debug("Configuring client with addresses: (%s, %s)" %
(emit_addr, reg_addr))
_emit_addr = emit_addr
_reg_addr = reg_addr
+ _factory = factory
+ _enable_curve = enable_curve
class EventsClient(object):
@@ -103,7 +107,9 @@ class EventsClient(object):
"""
with cls._instance_lock:
if cls._instance is None:
- cls._instance = cls(_emit_addr, _reg_addr)
+ cls._instance = cls(
+ _emit_addr, _reg_addr, factory=_factory,
+ enable_curve=_enable_curve)
return cls._instance
def register(self, event, callback, uid=None, replace=False):
@@ -270,7 +276,7 @@ class EventsClientThread(threading.Thread, EventsClient):
A threaded version of the events client.
"""
- def __init__(self, emit_addr, reg_addr):
+ def __init__(self, emit_addr, reg_addr, factory=None, enable_curve=True):
"""
Initialize the events client.
"""
@@ -281,15 +287,22 @@ class EventsClientThread(threading.Thread, EventsClient):
self._config_prefix = os.path.join(
get_path_prefix(flags.STANDALONE), "leap", "events")
self._loop = None
+ self._factory = factory
self._context = None
self._push = None
self._sub = None
+ if enable_curve:
+ self.use_curve = zmq_has_curve()
+ else:
+ self.use_curve = False
+
def _init_zmq(self):
"""
Initialize ZMQ connections.
"""
self._loop = EventsIOLoop()
+ # we need a new context for each thread
self._context = zmq.Context()
# connect SUB first, otherwise we might miss some event sent from this
# same client
@@ -311,7 +324,7 @@ class EventsClientThread(threading.Thread, EventsClient):
logger.debug("Connecting %s to %s." % (socktype, address))
socket = self._context.socket(socktype)
# configure curve authentication
- if zmq_has_curve():
+ if self.use_curve:
public, private = maybe_create_and_get_certificates(
self._config_prefix, "client")
server_public_file = os.path.join(
diff --git a/src/leap/common/events/examples/README.txt b/src/leap/common/events/examples/README.txt
new file mode 100644
index 0000000..0bb0df6
--- /dev/null
+++ b/src/leap/common/events/examples/README.txt
@@ -0,0 +1,49 @@
+How to debug
+-----------------------------------------
+monitor the events socket:
+ sudo ngrep -W byline -d any port 9000
+
+launch the server:
+ python server.py
+
+launch the client:
+ python client.py
+
+if zmq is available and enabled, you should see encrypted messages passing by
+the socket.
+
+You should see something like the following:
+
+####
+T 127.0.0.1:9000 -> 127.0.0.1:33122 [AP]
+..........
+##
+T 127.0.0.1:33122 -> 127.0.0.1:9000 [AP]
+...........
+##
+T 127.0.0.1:9000 -> 127.0.0.1:33122 [AP]
+..CURVE...............................................
+#
+T 127.0.0.1:33122 -> 127.0.0.1:9000 [AP]
+.CURVE...............................................
+#
+T 127.0.0.1:33122 -> 127.0.0.1:9000 [AP]
+...HELLO.............................................................................:....^...".....'.S...n......Y...................O.7.+.D.q".*..R...j.....8..qu..~......Ck.G\....:...m....Tg.s..M..x<..
+##
+T 127.0.0.1:9000 -> 127.0.0.1:33122 [AP]
+...WELCOME..%.'.,Td... I..}...........`..Nm......./_.Je...4.....-.....f<v.|.".jJ...^.D...$lJ..U......g..../w.......\..W.....!........i.v....0...........3..a.5}.@F..v./..$
+#
+T 127.0.0.1:33122 -> 127.0.0.1:9000 [AP]
+..........INITIATE......!.*.=0.-......D..]{...A\.tz...!2.....A./
+6.......Y.h.N....cb.U.|..f..)....W..3..X.2U.3PGl.........m..95.(......NJ....5.'..W.GQ..B/.....\%.,Q..r.'L5.......{.W<=._.$.(6j.G...
+...37.H..Th...'.........0 ........,..q....U..G..M.`!_..w....f."..........
+.d.K.Y.>f.n.kV.
+#
+T 127.0.0.1:9000 -> 127.0.0.1:33122 [AP]
+.2.READY............A...e.)......*.8y....k.<.N1Z.4..
+#
+T 127.0.0.1:33122 -> 127.0.0.1:9000 [AP]
+.+.MESSAGE........o...*M..,....
+.r..w..[.GwcU
+###
+
diff --git a/src/leap/common/events/examples/client.py b/src/leap/common/events/examples/client.py
new file mode 100644
index 0000000..d6d8985
--- /dev/null
+++ b/src/leap/common/events/examples/client.py
@@ -0,0 +1,2 @@
+from leap.common.events.txclient import emit
+emit('stuff!')
diff --git a/src/leap/common/events/examples/server.py b/src/leap/common/events/examples/server.py
new file mode 100644
index 0000000..f40f8dc
--- /dev/null
+++ b/src/leap/common/events/examples/server.py
@@ -0,0 +1,4 @@
+from twisted.internet import reactor
+from leap.common.events.server import ensure_server
+reactor.callWhenRunning(ensure_server)
+reactor.run()
diff --git a/src/leap/common/events/server.py b/src/leap/common/events/server.py
index a69202e..05fc23e 100644
--- a/src/leap/common/events/server.py
+++ b/src/leap/common/events/server.py
@@ -14,33 +14,31 @@
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-
"""
The server for the events mechanism.
"""
-
-
import logging
+import platform
+
import txzmq
from leap.common.zmq_utils import zmq_has_curve
-
from leap.common.events.zmq_components import TxZmqServerComponent
-if zmq_has_curve():
+if zmq_has_curve() or platform.system() == "Windows":
+ # Windows doesn't have ipc sockets, we need to use always tcp
EMIT_ADDR = "tcp://127.0.0.1:9000"
REG_ADDR = "tcp://127.0.0.1:9001"
else:
EMIT_ADDR = "ipc:///tmp/leap.common.events.socket.0"
REG_ADDR = "ipc:///tmp/leap.common.events.socket.1"
-
logger = logging.getLogger(__name__)
-def ensure_server(emit_addr=EMIT_ADDR, reg_addr=REG_ADDR):
+def ensure_server(emit_addr=EMIT_ADDR, reg_addr=REG_ADDR, path_prefix=None,
+ factory=None, enable_curve=True):
"""
Make sure the server is running in the given addresses.
@@ -52,7 +50,8 @@ def ensure_server(emit_addr=EMIT_ADDR, reg_addr=REG_ADDR):
:return: an events server instance
:rtype: EventsServer
"""
- _server = EventsServer(emit_addr, reg_addr)
+ _server = EventsServer(emit_addr, reg_addr, path_prefix, factory=factory,
+ enable_curve=enable_curve)
return _server
@@ -62,7 +61,8 @@ class EventsServer(TxZmqServerComponent):
events in another address.
"""
- def __init__(self, emit_addr, reg_addr):
+ def __init__(self, emit_addr, reg_addr, path_prefix=None, factory=None,
+ enable_curve=True):
"""
Initialize the events server.
@@ -71,7 +71,9 @@ class EventsServer(TxZmqServerComponent):
:param reg_addr: The address to which publish events to clients.
:type reg_addr: str
"""
- TxZmqServerComponent.__init__(self)
+ TxZmqServerComponent.__init__(self, path_prefix=path_prefix,
+ factory=factory,
+ enable_curve=enable_curve)
# bind PULL and PUB sockets
self._pull, self.pull_port = self._zmq_bind(
txzmq.ZmqPullConnection, emit_addr)
diff --git a/src/leap/common/events/tests/test_auth.py b/src/leap/common/events/tests/test_auth.py
new file mode 100644
index 0000000..78ffd9f
--- /dev/null
+++ b/src/leap/common/events/tests/test_auth.py
@@ -0,0 +1,64 @@
+# -*- coding: utf-8 -*-
+# test_zmq_components.py
+# Copyright (C) 2014 LEAP
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+"""
+Tests for the auth module.
+"""
+import os
+
+from twisted.trial import unittest
+from txzmq import ZmqFactory
+
+from leap.common.events import auth
+from leap.common.testing.basetest import BaseLeapTest
+from leap.common.zmq_utils import PUBLIC_KEYS_PREFIX
+from leap.common.zmq_utils import maybe_create_and_get_certificates
+
+from txzmq.test import _wait
+
+
+class ZmqAuthTestCase(unittest.TestCase, BaseLeapTest):
+
+ def setUp(self):
+ self.setUpEnv(launch_events_server=False)
+
+ self.factory = ZmqFactory()
+ self._config_prefix = os.path.join(self.tempdir, "leap", "events")
+
+ self.public, self.secret = maybe_create_and_get_certificates(
+ self._config_prefix, 'server')
+
+ self.authenticator = auth.TxAuthenticator(self.factory)
+ self.authenticator.start()
+ self.auth_req = auth.TxAuthenticationRequest(self.factory)
+
+ def tearDown(self):
+ self.factory.shutdown()
+ self.tearDownEnv()
+
+ def test_curve_auth(self):
+ self.auth_req.start()
+ self.auth_req.allow('127.0.0.1')
+ public_keys_dir = os.path.join(self._config_prefix, PUBLIC_KEYS_PREFIX)
+ self.auth_req.configure_curve(domain="*", location=public_keys_dir)
+
+ def check(ignored):
+ authenticator = self.authenticator.authenticator
+ certs = authenticator.certs['*']
+ self.failUnlessEqual(authenticator.whitelist, set([u'127.0.0.1']))
+ self.failUnlessEqual(certs[certs.keys()[0]], True)
+
+ return _wait(0.1).addCallback(check)
diff --git a/src/leap/common/events/tests/test_events.py b/src/leap/common/events/tests/test_events.py
new file mode 100644
index 0000000..d8435c6
--- /dev/null
+++ b/src/leap/common/events/tests/test_events.py
@@ -0,0 +1,203 @@
+# -*- coding: utf-8 -*-
+# test_events.py
+# Copyright (C) 2013 LEAP
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+"""
+Tests for the events framework
+"""
+import os
+import logging
+
+from twisted.internet.reactor import callFromThread
+from twisted.trial import unittest
+from twisted.internet import defer
+
+from txzmq import ZmqFactory
+
+from leap.common.events import server
+from leap.common.events import client
+from leap.common.events import flags
+from leap.common.events import txclient
+from leap.common.events import catalog
+from leap.common.events.errors import CallbackAlreadyRegisteredError
+
+
+if 'DEBUG' in os.environ:
+ logging.basicConfig(level=logging.DEBUG)
+
+
+class EventsGenericClientTestCase(object):
+
+ def setUp(self):
+ flags.set_events_enabled(True)
+ self.factory = ZmqFactory()
+ self._server = server.ensure_server(
+ emit_addr="tcp://127.0.0.1:0",
+ reg_addr="tcp://127.0.0.1:0",
+ factory=self.factory,
+ enable_curve=False)
+
+ self._client.configure_client(
+ emit_addr="tcp://127.0.0.1:%d" % self._server.pull_port,
+ reg_addr="tcp://127.0.0.1:%d" % self._server.pub_port,
+ factory=self.factory, enable_curve=False)
+
+ def tearDown(self):
+ flags.set_events_enabled(False)
+ self.factory.shutdown()
+ self._client.instance().reset()
+
+ def test_client_register(self):
+ """
+ Ensure clients can register callbacks.
+ """
+ callbacks = self._client.instance().callbacks
+ self.assertTrue(len(callbacks) == 0,
+ 'There should be no callback for this event.')
+ # register one event
+ event1 = catalog.CLIENT_UID
+
+ def cbk1(event, _):
+ return True
+
+ uid1 = self._client.register(event1, cbk1)
+ # assert for correct registration
+ self.assertTrue(len(callbacks) == 1)
+ self.assertTrue(callbacks[event1][uid1] == cbk1,
+ 'Could not register event in local client.')
+ # register another event
+ event2 = catalog.CLIENT_SESSION_ID
+
+ def cbk2(event, _):
+ return True
+
+ uid2 = self._client.register(event2, cbk2)
+ # assert for correct registration
+ self.assertTrue(len(callbacks) == 2)
+ self.assertTrue(callbacks[event2][uid2] == cbk2,
+ 'Could not register event in local client.')
+
+ def test_register_signal_replace(self):
+ """
+ Make sure clients can replace already registered callbacks.
+ """
+ event = catalog.CLIENT_UID
+ d = defer.Deferred()
+
+ def cbk_fail(event, _):
+ return callFromThread(d.errback, event)
+
+ def cbk_succeed(event, _):
+ return callFromThread(d.callback, event)
+
+ self._client.register(event, cbk_fail, uid=1)
+ self._client.register(event, cbk_succeed, uid=1, replace=True)
+ self._client.emit(event, None)
+ return d
+
+ def test_register_signal_replace_fails_when_replace_is_false(self):
+ """
+ Make sure clients trying to replace already registered callbacks fail
+ when replace=False
+ """
+ event = catalog.CLIENT_UID
+ self._client.register(event, lambda event, _: None, uid=1)
+ self.assertRaises(
+ CallbackAlreadyRegisteredError,
+ self._client.register,
+ event, lambda event, _: None, uid=1, replace=False)
+
+ def test_register_more_than_one_callback_works(self):
+ """
+ Make sure clients can replace already registered callbacks.
+ """
+ event = catalog.CLIENT_UID
+ d1 = defer.Deferred()
+
+ def cbk1(event, _):
+ return callFromThread(d1.callback, event)
+
+ d2 = defer.Deferred()
+
+ def cbk2(event, _):
+ return d2.callback(event)
+
+ self._client.register(event, cbk1)
+ self._client.register(event, cbk2)
+ self._client.emit(event, None)
+ d = defer.gatherResults([d1, d2])
+ return d
+
+ def test_client_receives_signal(self):
+ """
+ Ensure clients can receive signals.
+ """
+ event = catalog.CLIENT_UID
+ d = defer.Deferred()
+
+ def cbk(events, _):
+ callFromThread(d.callback, event)
+
+ self._client.register(event, cbk)
+ self._client.emit(event, None)
+ return d
+
+ def test_client_unregister_all(self):
+ """
+ Test that the client can unregister all events for one signal.
+ """
+ event1 = catalog.CLIENT_UID
+ d = defer.Deferred()
+ # register more than one callback for the same event
+ self._client.register(
+ event1, lambda ev, _: callFromThread(d.errback, None))
+ self._client.register(
+ event1, lambda ev, _: callFromThread(d.errback, None))
+ # unregister and emit the event
+ self._client.unregister(event1)
+ self._client.emit(event1, None)
+ # register and emit another event so the deferred can succeed
+ event2 = catalog.CLIENT_SESSION_ID
+ self._client.register(
+ event2, lambda ev, _: callFromThread(d.callback, None))
+ self._client.emit(event2, None)
+ return d
+
+ def test_client_unregister_by_uid(self):
+ """
+ Test that the client can unregister an event by uid.
+ """
+ event = catalog.CLIENT_UID
+ d = defer.Deferred()
+ # register one callback that would fail
+ uid = self._client.register(
+ event, lambda ev, _: callFromThread(d.errback, None))
+ # register one callback that will succeed
+ self._client.register(
+ event, lambda ev, _: callFromThread(d.callback, None))
+ # unregister by uid and emit the event
+ self._client.unregister(event, uid=uid)
+ self._client.emit(event, None)
+ return d
+
+
+class EventsTxClientTestCase(EventsGenericClientTestCase, unittest.TestCase):
+
+ _client = txclient
+
+
+class EventsClientTestCase(EventsGenericClientTestCase, unittest.TestCase):
+
+ _client = client
diff --git a/src/leap/common/events/txclient.py b/src/leap/common/events/txclient.py
index dfd0533..63f12d7 100644
--- a/src/leap/common/events/txclient.py
+++ b/src/leap/common/events/txclient.py
@@ -58,16 +58,19 @@ class EventsTxClient(TxZmqClientComponent, EventsClient):
"""
def __init__(self, emit_addr=EMIT_ADDR, reg_addr=REG_ADDR,
- path_prefix=None):
+ path_prefix=None, factory=None, enable_curve=True):
"""
- Initialize the events server.
+ Initialize the events client.
"""
- TxZmqClientComponent.__init__(self, path_prefix=path_prefix)
+ TxZmqClientComponent.__init__(
+ self, path_prefix=path_prefix, factory=factory,
+ enable_curve=enable_curve)
EventsClient.__init__(self, emit_addr, reg_addr)
# connect SUB first, otherwise we might miss some event sent from this
# same client
self._sub = self._zmq_connect(txzmq.ZmqSubConnection, reg_addr)
self._sub.gotMessage = self._gotMessage
+
self._push = self._zmq_connect(txzmq.ZmqPushConnection, emit_addr)
def _gotMessage(self, msg, tag):
@@ -122,7 +125,6 @@ class EventsTxClient(TxZmqClientComponent, EventsClient):
callback(event, *content)
def shutdown(self):
- TxZmqClientComponent.shutdown(self)
EventsClient.shutdown(self)
diff --git a/src/leap/common/events/zmq_components.py b/src/leap/common/events/zmq_components.py
index 51de02c..c533a74 100644
--- a/src/leap/common/events/zmq_components.py
+++ b/src/leap/common/events/zmq_components.py
@@ -1,6 +1,6 @@
# -*- coding: utf-8 -*-
# zmq.py
-# Copyright (C) 2015 LEAP
+# Copyright (C) 2015, 2016 LEAP
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -14,60 +14,63 @@
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-
"""
The server for the events mechanism.
"""
-
-
import os
import logging
import txzmq
import re
-import time
from abc import ABCMeta
-# XXX some distros don't package libsodium, so we have to be prepared for
-# absence of zmq.auth
try:
import zmq.auth
- from zmq.auth.thread import ThreadAuthenticator
+ from leap.common.events.auth import TxAuthenticator
+ from leap.common.events.auth import TxAuthenticationRequest
except ImportError:
pass
+from txzmq.connection import ZmqEndpoint, ZmqEndpointType
+
from leap.common.config import flags, get_path_prefix
from leap.common.zmq_utils import zmq_has_curve
from leap.common.zmq_utils import maybe_create_and_get_certificates
from leap.common.zmq_utils import PUBLIC_KEYS_PREFIX
-
logger = logging.getLogger(__name__)
-
ADDRESS_RE = re.compile("^([a-z]+)://([^:]+):?(\d+)?$")
+LOCALHOST_ALLOWED = '127.0.0.1'
+
class TxZmqComponent(object):
"""
A twisted-powered zmq events component.
"""
+ _factory = txzmq.ZmqFactory()
+ _factory.registerForShutdown()
+ _auth = None
__metaclass__ = ABCMeta
_component_type = None
- def __init__(self, path_prefix=None):
+ def __init__(self, path_prefix=None, enable_curve=True, factory=None):
"""
Initialize the txzmq component.
"""
- self._factory = txzmq.ZmqFactory()
- self._factory.registerForShutdown()
if path_prefix is None:
path_prefix = get_path_prefix(flags.STANDALONE)
+ if factory is not None:
+ self._factory = factory
self._config_prefix = os.path.join(path_prefix, "leap", "events")
self._connections = []
+ if enable_curve:
+ self.use_curve = zmq_has_curve()
+ else:
+ self.use_curve = False
@property
def component_type(self):
@@ -77,105 +80,89 @@ class TxZmqComponent(object):
"define a self._component_type!")
return self._component_type
- def _zmq_connect(self, connClass, address):
+ def _zmq_bind(self, connClass, address):
"""
- Connect to an address.
+ Bind to an address.
:param connClass: The connection class to be used.
:type connClass: txzmq.ZmqConnection
- :param address: The address to connect to.
+ :param address: The address to bind to.
:type address: str
- :return: The binded connection.
- :rtype: txzmq.ZmqConnection
+ :return: The binded connection and port.
+ :rtype: (txzmq.ZmqConnection, int)
"""
+ proto, addr, port = ADDRESS_RE.search(address).groups()
+
+ endpoint = ZmqEndpoint(ZmqEndpointType.bind, address)
connection = connClass(self._factory)
- # create and configure socket
- socket = connection.socket
- if zmq_has_curve():
+
+ if self.use_curve:
+ socket = connection.socket
+
public, secret = maybe_create_and_get_certificates(
self._config_prefix, self.component_type)
- server_public_file = os.path.join(
- self._config_prefix, PUBLIC_KEYS_PREFIX, "server.key")
- server_public, _ = zmq.auth.load_certificate(server_public_file)
socket.curve_publickey = public
socket.curve_secretkey = secret
- socket.curve_serverkey = server_public
- socket.connect(address)
- logger.debug("Connected %s to %s." % (connClass, address))
- self._connections.append(connection)
- return connection
+ self._start_authentication(connection.socket)
- def _zmq_bind(self, connClass, address):
+ if proto == 'tcp' and int(port) == 0:
+ connection.endpoints.extend([endpoint])
+ port = connection.socket.bind_to_random_port('tcp://%s' % addr)
+ else:
+ connection.addEndpoints([endpoint])
+
+ return connection, int(port)
+
+ def _zmq_connect(self, connClass, address):
"""
- Bind to an address.
+ Connect to an address.
:param connClass: The connection class to be used.
:type connClass: txzmq.ZmqConnection
- :param address: The address to bind to.
+ :param address: The address to connect to.
:type address: str
- :return: The binded connection and port.
- :rtype: (txzmq.ZmqConnection, int)
+ :return: The binded connection.
+ :rtype: txzmq.ZmqConnection
"""
+ endpoint = ZmqEndpoint(ZmqEndpointType.connect, address)
connection = connClass(self._factory)
- socket = connection.socket
- if zmq_has_curve():
+
+ if self.use_curve:
+ socket = connection.socket
public, secret = maybe_create_and_get_certificates(
self._config_prefix, self.component_type)
+ server_public_file = os.path.join(
+ self._config_prefix, PUBLIC_KEYS_PREFIX, "server.key")
+
+ server_public, _ = zmq.auth.load_certificate(server_public_file)
socket.curve_publickey = public
socket.curve_secretkey = secret
- self._start_thread_auth(connection.socket)
+ socket.curve_serverkey = server_public
- proto, addr, port = ADDRESS_RE.search(address).groups()
+ connection.addEndpoints([endpoint])
+ return connection
- if proto == "tcp":
- if port is None or port is '0':
- params = proto, addr
- port = socket.bind_to_random_port("%s://%s" % params)
- logger.debug("Binded %s to %s://%s." % ((connClass,) + params))
- else:
- params = proto, addr, int(port)
- socket.bind("%s://%s:%d" % params)
- logger.debug(
- "Binded %s to %s://%s:%d." % ((connClass,) + params))
- else:
- params = proto, addr
- socket.bind("%s://%s" % params)
- logger.debug(
- "Binded %s to %s://%s" % ((connClass,) + params))
- self._connections.append(connection)
- return connection, port
-
- def _start_thread_auth(self, socket):
- """
- Start the zmq curve thread authenticator.
+ def _start_authentication(self, socket):
- :param socket: The socket in which to configure the authenticator.
- :type socket: zmq.Socket
- """
- authenticator = ThreadAuthenticator(self._factory.context)
+ if not TxZmqComponent._auth:
+ TxZmqComponent._auth = TxAuthenticator(self._factory)
+ TxZmqComponent._auth.start()
- # Temporary fix until we understand what the problem is
- # See https://leap.se/code/issues/7536
- time.sleep(0.5)
+ auth_req = TxAuthenticationRequest(self._factory)
+ auth_req.start()
+ auth_req.allow(LOCALHOST_ALLOWED)
- authenticator.start()
- # XXX do not hardcode this here.
- authenticator.allow('127.0.0.1')
# tell authenticator to use the certificate in a directory
public_keys_dir = os.path.join(self._config_prefix, PUBLIC_KEYS_PREFIX)
- authenticator.configure_curve(domain="*", location=public_keys_dir)
- socket.curve_server = True # must come before bind
+ auth_req.configure_curve(domain="*", location=public_keys_dir)
+ auth_req.shutdown()
+ TxZmqComponent._auth.shutdown()
- def shutdown(self):
- """
- Shutdown the component.
- """
- logger.debug("Shutting down component %s." % str(self))
- for conn in self._connections:
- conn.shutdown()
- self._factory.shutdown()
+ # This has to be set before binding the socket, that's why this method
+ # has to be called before addEndpoints()
+ socket.curve_server = True
class TxZmqServerComponent(TxZmqComponent):