def send(self, msg):
if self._log:
bytes, isbinary = self._serializer.serialize(msg)
print("Send: {}".format(bytes))
reply = None
if isinstance(msg, message.Publish):
if msg.topic.startswith(u'com.myapp'):
if msg.acknowledge:
reply = message.Published(msg.request, util.id())
elif len(msg.topic) == 0:
reply = message.Error(message.Publish.MESSAGE_TYPE, msg.request, u'wamp.error.invalid_topic')
else:
reply = message.Error(message.Publish.MESSAGE_TYPE, msg.request, u'wamp.error.not_authorized')
elif isinstance(msg, message.Call):
if msg.procedure == u'com.myapp.procedure1':
reply = message.Result(msg.request, args = [100])
elif msg.procedure == u'com.myapp.procedure2':
reply = message.Result(msg.request, args = [1, 2, 3])
elif msg.procedure == u'com.myapp.procedure3':
reply = message.Result(msg.request, args = [1, 2, 3], kwargs = {u'foo': u'bar', u'baz': 23})
elif msg.procedure.startswith(u'com.myapp.myproc'):
registration = self._registrations[msg.procedure]
request = util.id()
self._invocations[request] = msg.request
reply = message.Invocation(request, registration, args = msg.args, kwargs = msg.kwargs)
else:
reply = message.Error(message.Call.MESSAGE_TYPE, msg.request, u'wamp.error.no_such_procedure')
elif isinstance(msg, message.Yield):
if self._invocations.has_key(msg.request):
request = self._invocations[msg.request]
reply = message.Result(request, args = msg.args, kwargs = msg.kwargs)
elif isinstance(msg, message.Subscribe):
reply = message.Subscribed(msg.request, util.id())
elif isinstance(msg, message.Unsubscribe):
reply = message.Unsubscribed(msg.request)
elif isinstance(msg, message.Register):
registration = util.id()
self._registrations[msg.procedure] = registration
reply = message.Registered(msg.request, registration)
elif isinstance(msg, message.Unregister):
reply = message.Unregistered(msg.request)
if reply:
if self._log:
bytes, isbinary = self._serializer.serialize(reply)
print("Receive: {}".format(bytes))
self._handler.onMessage(reply)
def __init__(self, uri, ordered=False, extra=None):
"""
:param uri: The URI (or URI pattern) for this observation.
:type uri: unicode
"""
# URI (or URI pattern) this observation is created for
self.uri = uri
# flag indicating whether observers should be maintained
# in an ordered set or a regular, unordered set
self.ordered = ordered
# arbitrary, opaque extra data attached to the observation
self.extra = extra
# generate a new ID for the observation
self.id = util.id()
# UTC timestamp this observation was created
self.created = util.utcnow()
# set of observers
if self.ordered:
self.observers = OrderedSet()
else:
self.observers = set()
# arbitrary, opaque extra data attached to the observers of this observation
self.observers_extra = {}
def _unsubscribe(self, subscription):
"""
Called from :meth:`autobahn.wamp.protocol.Subscription.unsubscribe`
"""
assert (isinstance(subscription, Subscription))
assert subscription.active
assert (subscription.id in self._subscriptions)
assert (subscription in self._subscriptions[subscription.id])
if not self._transport:
raise exception.TransportLost()
# remove handler subscription and mark as inactive
self._subscriptions[subscription.id].remove(subscription)
subscription.active = False
# number of handler subscriptions left ..
scount = len(self._subscriptions[subscription.id])
if scount == 0:
# if the last handler was removed, unsubscribe from broker ..
request_id = util.id()
on_reply = txaio.create_future()
self._unsubscribe_reqs[request_id] = UnsubscribeRequest(
request_id, on_reply, subscription.id)
msg = message.Unsubscribe(request_id, subscription.id)
self._transport.send(msg)
return on_reply
else:
# there are still handlers active on the subscription!
return txaio.create_future_success(scount)
def call(self, procedure, *args, **kwargs):
"""
Implements :func:`autobahn.wamp.interfaces.ICaller.call`
"""
if six.PY2 and type(procedure) == str:
procedure = six.u(procedure)
assert(isinstance(procedure, six.text_type))
if not self._transport:
raise exception.TransportLost()
request = util.id()
if 'options' in kwargs and isinstance(kwargs['options'], types.CallOptions):
opts = kwargs.pop('options')
msg = message.Call(request, procedure, args = args, kwargs = kwargs, **opts.options)
else:
opts = None
msg = message.Call(request, procedure, args = args, kwargs = kwargs)
## FIXME
#def canceller(_d):
# cancel_msg = message.Cancel(request)
# self._transport.send(cancel_msg)
#d = Deferred(canceller)
d = self._create_future()
self._call_reqs[request] = d, opts
self._transport.send(msg)
return d
def process_will(res):
akw = mqtt_payload_transform(
self._wamp_session._router._mqtt_payload_format,
packet.will_message)
if not akw:
# Drop it I guess :(
return res
args, kwargs = akw
msg = message.Call(
request=util.id(),
procedure=u"wamp.session.add_testament",
args=[
u".".join(tokenise_mqtt_topic(packet.will_topic)),
args, kwargs, {
"retain": bool(packet.flags.will_retain)
}
])
self._wamp_session.onMessage(msg)
return res
def publish(self, topic, *args, **kwargs):
"""
Implements :func:`autobahn.wamp.interfaces.IPublisher.publish`
"""
if six.PY2 and type(topic) == str:
topic = six.u(topic)
assert(type(topic) == six.text_type)
if not self._transport:
raise exception.TransportLost()
request = util.id()
if 'options' in kwargs and isinstance(kwargs['options'], types.PublishOptions):
opts = kwargs.pop('options')
msg = message.Publish(request, topic, args = args, kwargs = kwargs, **opts.options)
else:
opts = None
msg = message.Publish(request, topic, args = args, kwargs = kwargs)
if opts and opts.options['acknowledge'] == True:
d = self._create_future()
self._publish_reqs[request] = d, opts
self._transport.send(msg)
return d
else:
self._transport.send(msg)
return
def processRegister(self, session, register):
"""
Implements :func:`autobahn.wamp.interfaces.IDealer.processRegister`
"""
assert(session in self._session_to_registrations)
## check topic URI
##
if self._option_uri_strict and not _URI_PAT_STRICT.match(register.procedure):
reply = message.Error(message.Register.MESSAGE_TYPE, register.request, ApplicationError.INVALID_URI)
else:
if not register.procedure in self._procs_to_regs:
registration_id = util.id()
self._procs_to_regs[register.procedure] = (registration_id, session)
self._regs_to_procs[registration_id] = register.procedure
self._session_to_registrations[session].add(registration_id)
reply = message.Registered(register.request, registration_id)
else:
reply = message.Error(message.Register.MESSAGE_TYPE, register.request, ApplicationError.PROCEDURE_ALREADY_EXISTS)
session._transport.send(reply)
def processCall(self, session, call):
"""
Implements :func:`autobahn.wamp.interfaces.IDealer.processCall`
"""
assert(session in self._session_to_registrations)
if call.procedure in self._procs_to_regs:
registration_id, endpoint_session = self._procs_to_regs[call.procedure]
request_id = util.id()
if call.discloseMe:
caller = session._session_id
else:
caller = None
invocation = message.Invocation(request_id,
registration_id,
args = call.args,
kwargs = call.kwargs,
timeout = call.timeout,
receive_progress = call.receive_progress,
caller = caller)
self._invocations[request_id] = (call, session)
endpoint_session._transport.send(invocation)
else:
reply = message.Error(message.Call.MESSAGE_TYPE, call.request, 'wamp.error.no_such_procedure')
session._transport.send(reply)
def on_authorize_success(authorized):
if not authorized:
reply = message.Error(message.Subscribe.MESSAGE_TYPE, subscribe.request, ApplicationError.NOT_AUTHORIZED, ["session is not authorized to subscribe to topic '{0}'".format(subscribe.topic)])
else:
if not subscribe.topic in self._topic_to_sessions:
subscription = util.id()
self._topic_to_sessions[subscribe.topic] = (subscription, set())
subscription, subscribers = self._topic_to_sessions[subscribe.topic]
if not session in subscribers:
subscribers.add(session)
if not subscription in self._subscription_to_sessions:
self._subscription_to_sessions[subscription] = (subscribe.topic, set())
_, subscribers = self._subscription_to_sessions[subscription]
if not session in subscribers:
subscribers.add(session)
if not subscription in self._session_to_subscriptions[session]:
self._session_to_subscriptions[session].add(subscription)
reply = message.Subscribed(subscribe.request, subscription)
session._transport.send(reply)
def _unsubscribe(self, subscription):
"""
Called from :meth:`autobahn.wamp.protocol.Subscription.unsubscribe`
"""
assert(isinstance(subscription, Subscription))
assert subscription.active
assert(subscription.id in self._subscriptions)
assert(subscription in self._subscriptions[subscription.id])
if not self._transport:
raise exception.TransportLost()
# remove handler subscription and mark as inactive
self._subscriptions[subscription.id].remove(subscription)
subscription.active = False
# number of handler subscriptions left ..
scount = len(self._subscriptions[subscription.id])
if scount == 0:
# if the last handler was removed, unsubscribe from broker ..
request_id = util.id()
on_reply = txaio.create_future()
self._unsubscribe_reqs[request_id] = UnsubscribeRequest(request_id, on_reply, subscription.id)
msg = message.Unsubscribe(request_id, subscription.id)
self._transport.send(msg)
return on_reply
else:
# there are still handlers active on the subscription!
return txaio.create_future_success(scount)
def __init__(self, uri, ordered=False, extra=None):
"""
:param uri: The URI (or URI pattern) for this observation.
:type uri: unicode
"""
# URI (or URI pattern) this observation is created for
self.uri = uri
# flag indicating whether observers should be maintained
# in an ordered set or a regular, unordered set
self.ordered = ordered
# arbitrary, opaque extra data attached to the observation
self.extra = extra
# generate a new ID for the observation
self.id = util.id()
# UTC timestamp this observation was created
self.created = util.utcnow()
# set of observers
if self.ordered:
self.observers = OrderedSet()
else:
self.observers = set()
def on_authorize(authorized):
if authorized:
registration_id, endpoint_session, discloseCaller = self._procs_to_regs[call.procedure]
request_id = util.id()
if discloseCaller or call.discloseMe:
caller = session._session_id
authid = session._authid
authrole = session._authrole
authmethod = session._authmethod
else:
caller = None
authid = None
authrole = None
authmethod = None
invocation = message.Invocation(request_id,
registration_id,
args = call.args,
kwargs = call.kwargs,
timeout = call.timeout,
receive_progress = call.receive_progress,
caller = caller,
authid = authid,
authrole = authrole,
authmethod = authmethod)
self._invocations[request_id] = (call, session)
endpoint_session._transport.send(invocation)
else:
reply = message.Error(message.Call.MESSAGE_TYPE, call.request, ApplicationError.NOT_AUTHORIZED, ["session is not authorized to call procedure '{}'".format(call.procedure)])
session._transport.send(reply)
def call(self, procedure, *args, **kwargs):
"""
Implements :func:`autobahn.wamp.interfaces.ICaller.call`
"""
assert(type(procedure) in (str, unicode))
if not self._transport:
raise exception.TransportLost()
request = util.id()
if 'options' in kwargs and isinstance(kwargs['options'], types.CallOptions):
opts = kwargs.pop('options')
msg = message.Call(request, procedure, args = args, kwargs = kwargs, **opts.options)
else:
opts = None
msg = message.Call(request, procedure, args = args, kwargs = kwargs)
def canceller(_d):
cancel_msg = message.Cancel(request)
self._transport.send(cancel_msg)
d = Deferred(canceller)
self._call_reqs[request] = d, opts
self._transport.send(msg)
return d
def publish(self, topic, *args, **kwargs):
"""
Implements :func:`autobahn.wamp.interfaces.IPublisher.publish`
"""
if six.PY2 and type(topic) == str:
topic = six.u(topic)
assert(type(topic) == six.text_type)
if not self._transport:
raise exception.TransportLost()
request = util.id()
if 'options' in kwargs and isinstance(kwargs['options'], types.PublishOptions):
opts = kwargs.pop('options')
msg = message.Publish(request, topic, args = args, kwargs = kwargs, **opts.options)
else:
opts = None
msg = message.Publish(request, topic, args = args, kwargs = kwargs)
if opts and opts.options['acknowledge'] == True:
d = self._create_future()
self._publish_reqs[request] = d, opts
self._transport.send(msg)
return d
else:
self._transport.send(msg)
return
def _publish(self, event, acknowledge=None):
"""
Given a MQTT event, create a WAMP Publish message and
forward that on the forwarding WAMP session.
"""
try:
payload_format, mapped_topic, options = yield self.factory.transform_mqtt(event.topic_name, event.payload)
except:
self.log.failure()
return
request = util.id()
msg = message.Publish(
request=request,
topic=mapped_topic,
exclude_me=False,
acknowledge=acknowledge,
retain=event.retain,
**options)
self._wamp_session.onMessage(msg)
if event.qos_level > 0:
self._request_to_packetid[request] = event.packet_identifier
returnValue(0)
def call(self, procedure, *args, **kwargs):
"""
Implements :func:`autobahn.wamp.interfaces.ICaller.call`
"""
if six.PY2 and type(procedure) == str:
procedure = six.u(procedure)
assert(isinstance(procedure, six.text_type))
if not self._transport:
raise exception.TransportLost()
request = util.id()
if 'options' in kwargs and isinstance(kwargs['options'], types.CallOptions):
opts = kwargs.pop('options')
msg = message.Call(request, procedure, args = args, kwargs = kwargs, **opts.options)
else:
opts = None
msg = message.Call(request, procedure, args = args, kwargs = kwargs)
## FIXME
#def canceller(_d):
# cancel_msg = message.Cancel(request)
# self._transport.send(cancel_msg)
#d = Deferred(canceller)
d = self._create_future()
self._call_reqs[request] = d, opts
self._transport.send(msg)
return d
def process_will(res):
self.log.info()
payload_format, mapped_topic, options = yield self.factory.transform_mqtt(packet.will_topic, packet.will_message)
request = util.id()
msg = message.Call(
request=request,
procedure=u"wamp.session.add_testament",
args=[
mapped_topic,
options.get('args', None),
options.get('kwargs', None),
{
# specifiy "retain" for when the testament (last will)
# will be auto-published by the broker later
u'retain': bool(packet.flags.will_retain)
}
])
self._wamp_session.onMessage(msg)
returnValue(res)
def processSubscribe(self, session, subscribe):
"""
Implements :func:`autobahn.wamp.interfaces.IBroker.processSubscribe`
"""
assert(session in self._session_to_subscriptions)
if True:
if not subscribe.topic in self._topic_to_sessions:
subscription = util.id()
self._topic_to_sessions[subscribe.topic] = (subscription, set())
subscription, subscribers = self._topic_to_sessions[subscribe.topic]
if not session in subscribers:
subscribers.add(session)
if not subscription in self._subscription_to_sessions:
self._subscription_to_sessions[subscription] = (subscribe.topic, set())
_, subscribers = self._subscription_to_sessions[subscription]
if not session in subscribers:
subscribers.add(session)
if not subscription in self._session_to_subscriptions[session]:
self._session_to_subscriptions[session].add(subscription)
reply = message.Subscribed(subscribe.request, subscription)
else:
reply = message.Error(message.Subscribe.MESSAGE_TYPE, subscribe.request, ApplicationError.INVALID_TOPIC)
session._transport.send(reply)
def _get_retained_event():
if subscription.extra.retained_events:
retained_events = list(subscription.extra.retained_events)
retained_events.reverse()
for publish in retained_events:
authorised = False
if not publish.exclude and not publish.eligible:
authorised = True
elif session._session_id in publish.eligible and session._session_id not in publish.exclude:
authorised = True
if authorised:
publication = util.id()
if publish.payload:
msg = message.Event(subscription.id,
publication,
payload=publish.payload,
retained=True,
enc_algo=publish.enc_algo,
enc_key=publish.enc_key,
enc_serializer=publish.enc_serializer)
else:
msg = message.Event(subscription.id,
publication,
args=publish.args,
kwargs=publish.kwargs,
retained=True)
return [msg]
return []
def processRegister(self, session, register):
"""
Implements :func:`autobahn.wamp.interfaces.IDealer.processRegister`
"""
assert(session in self._session_to_registrations)
## check procedure URI
##
if (not self._option_uri_strict and not _URI_PAT_LOOSE_NON_EMPTY.match(register.procedure)) or \
( self._option_uri_strict and not _URI_PAT_STRICT_NON_EMPTY.match(register.procedure)):
reply = message.Error(message.Register.MESSAGE_TYPE, register.request, ApplicationError.INVALID_URI, ["register for invalid procedure URI '{}'".format(register.procedure)])
else:
if not register.procedure in self._procs_to_regs:
registration_id = util.id()
self._procs_to_regs[register.procedure] = (registration_id, session, register.discloseCaller)
self._regs_to_procs[registration_id] = register.procedure
self._session_to_registrations[session].add(registration_id)
reply = message.Registered(register.request, registration_id)
else:
reply = message.Error(message.Register.MESSAGE_TYPE, register.request, ApplicationError.PROCEDURE_ALREADY_EXISTS, ["register for already registered procedure URI '{}'".format(register.procedure)])
session._transport.send(reply)
def onMessage(self, msg):
"""
Implements :func:`autobahn.wamp.interfaces.ITransportHandler.onMessage`
"""
if self._session_id is None:
## the first message MUST be HELLO
if isinstance(msg, message.Hello):
self._session_id = util.id()
self._goodbye_sent = False
self._router = self._router_factory.get(msg.realm)
if not self._router:
raise Exception("no such realm")
roles = []
self._router.attach(self)
roles.append(role.RoleBrokerFeatures())
roles.append(role.RoleDealerFeatures())
msg = message.Welcome(self._session_id, roles)
self._transport.send(msg)
self.onJoin(SessionDetails(self._session_id))
else:
raise ProtocolError("Received {} message, and session is not yet established".format(msg.__class__))
else:
if isinstance(msg, message.Hello):
raise ProtocolError("HELLO message received, while session is already established")
elif isinstance(msg, message.Goodbye):
if not self._goodbye_sent:
## the peer wants to close: send GOODBYE reply
reply = message.Goodbye()
self._transport.send(reply)
## fire callback and close the transport
self.onLeave(types.CloseDetails(msg.reason, msg.message))
self._router.detach(self)
self._session_id = None
#self._transport.close()
elif isinstance(msg, message.Heartbeat):
pass ## FIXME
else:
self._router.process(self, msg)
def processCall(self, session, call):
"""
Implements :func:`autobahn.wamp.interfaces.IDealer.processCall`
"""
assert (session in self._session_to_registrations)
## check procedure URI
##
if (not self._option_uri_strict and not _URI_PAT_LOOSE_NON_EMPTY.match(call.procedure)) or \
( self._option_uri_strict and not _URI_PAT_STRICT_NON_EMPTY.match(call.procedure)):
reply = message.Error(
message.Register.MESSAGE_TYPE, call.request,
ApplicationError.INVALID_URI, [
"call with invalid procedure URI '{}'".format(
call.procedure)
])
session._transport.send(reply)
else:
if call.procedure in self._procs_to_regs:
registration_id, endpoint_session, discloseCaller = self._procs_to_regs[
call.procedure]
request_id = util.id()
if discloseCaller or call.discloseMe:
caller = session._session_id
authid = session._authid
authrole = session._authrole
authmethod = session._authmethod
else:
caller = None
authid = None
authrole = None
authmethod = None
invocation = message.Invocation(
request_id,
registration_id,
args=call.args,
kwargs=call.kwargs,
timeout=call.timeout,
receive_progress=call.receive_progress,
caller=caller,
authid=authid,
authrole=authrole,
authmethod=authmethod)
self._invocations[request_id] = (call, session)
endpoint_session._transport.send(invocation)
else:
reply = message.Error(
message.Call.MESSAGE_TYPE, call.request,
ApplicationError.NO_SUCH_PROCEDURE,
["no procedure '{}' registered".format(call.procedure)])
session._transport.send(reply)
def send(self, msg):
"""
Implements :func:`autobahn.wamp.interfaces.ITransport.send`
"""
if isinstance(msg, message.Hello):
self._router = self._routerFactory.get(msg.realm)
## fake session ID assignment (normally done in WAMP opening handshake)
self._session._session_id = util.id()
## add app session to router
self._router.attach(self._session)
## fake app session open
##
self._session.onJoin(SessionDetails(self._session._session_id))
## app-to-router
##
elif isinstance(msg, message.Publish) or \
isinstance(msg, message.Subscribe) or \
isinstance(msg, message.Unsubscribe) or \
isinstance(msg, message.Call) or \
isinstance(msg, message.Yield) or \
isinstance(msg, message.Register) or \
isinstance(msg, message.Unregister) or \
isinstance(msg, message.Cancel) or \
(isinstance(msg, message.Error) and msg.request_type == message.Invocation.MESSAGE_TYPE):
## deliver message to router
##
self._router.process(self._session, msg)
## router-to-app
##
elif isinstance(msg, message.Event) or \
isinstance(msg, message.Invocation) or \
isinstance(msg, message.Result) or \
isinstance(msg, message.Published) or \
isinstance(msg, message.Subscribed) or \
isinstance(msg, message.Unsubscribed) or \
isinstance(msg, message.Registered) or \
isinstance(msg, message.Unregistered) or \
(isinstance(msg, message.Error) and msg.request_type == message.Call.MESSAGE_TYPE):
## deliver message to app session
##
self._session.onMessage(msg)
else:
## should not arrive here
##
raise Exception("WampRouterAppSession.send: unhandled message {}".format(msg))
def _get_retained_event():
if subscription.extra.retained_events:
retained_events = list(
subscription.extra.retained_events)
retained_events.reverse()
for retained_event in retained_events:
authorized = False
if not retained_event.publish.exclude and not retained_event.publish.eligible:
authorized = True
elif session._session_id in retained_event.publish.eligible and session._session_id not in retained_event.publish.exclude:
authorized = True
if authorized:
publication = util.id()
if retained_event.publish.payload:
msg = message.Event(
subscription.id,
publication,
payload=retained_event.publish.payload,
enc_algo=retained_event.publish.
enc_algo,
enc_key=retained_event.publish.enc_key,
enc_serializer=retained_event.publish.
enc_serializer,
publisher=retained_event.publisher,
publisher_authid=retained_event.
publisher_authid,
publisher_authrole=retained_event.
publisher_authrole,
retained=True)
else:
msg = message.Event(
subscription.id,
publication,
args=retained_event.publish.args,
kwargs=retained_event.publish.kwargs,
publisher=retained_event.publisher,
publisher_authid=retained_event.
publisher_authid,
publisher_authrole=retained_event.
publisher_authrole,
retained=True)
msg.correlation_id = subscribe.correlation_id
msg.correlation_uri = subscribe.topic
msg.correlation_is_anchor = False
msg.correlation_is_last = False
return [msg]
return []
def welcome(realm, authid = None):
self._session_id = util.id()
self._goodbye_sent = False
self._router = self._router_factory.get(realm)
if not self._router:
raise Exception("no such realm")
roles = self._router.attach(self)
msg = message.Welcome(self._session_id, roles, authid)
self._transport.send(msg)
self.onJoin(SessionDetails(self._session_id))
def _register(obj, endpoint, procedure, options):
request = util.id()
d = self._create_future()
self._register_reqs[request] = (d, obj, endpoint, procedure, options)
if options is not None:
msg = message.Register(request, procedure, **options.options)
else:
msg = message.Register(request, procedure)
self._transport.send(msg)
return d
def _subscribe(obj, fn, topic, options):
request_id = util.id()
on_reply = txaio.create_future()
handler_obj = Handler(fn, obj, options.details_arg if options else None)
self._subscribe_reqs[request_id] = SubscribeRequest(request_id, on_reply, handler_obj)
if options:
msg = message.Subscribe(request_id, topic, **options.message_attr())
else:
msg = message.Subscribe(request_id, topic)
self._transport.send(msg)
return on_reply
def _subscribe(obj, handler, topic, options):
request = util.id()
d = self._create_future()
self._subscribe_reqs[request] = (d, obj, handler, topic, options)
if options is not None:
msg = message.Subscribe(request, topic, **options.options)
else:
msg = message.Subscribe(request, topic)
self._transport.send(msg)
return d
def _register(obj, fn, procedure, options):
request_id = util.id()
on_reply = txaio.create_future()
endpoint_obj = Endpoint(fn, obj, options.details_arg if options else None)
self._register_reqs[request_id] = RegisterRequest(request_id, on_reply, procedure, endpoint_obj)
if options:
msg = message.Register(request_id, procedure, **options.message_attr())
else:
msg = message.Register(request_id, procedure)
self._transport.send(msg)
return on_reply
def on_authorize_success(authorized):
if authorized:
registration_id = util.id()
self._procs_to_regs[register.procedure] = (registration_id, session, register.discloseCaller, register.discloseCallerTransport)
self._regs_to_procs[registration_id] = register.procedure
self._session_to_registrations[session].add(registration_id)
reply = message.Registered(register.request, registration_id)
else:
reply = message.Error(message.Register.MESSAGE_TYPE, register.request, ApplicationError.NOT_AUTHORIZED, ["session is not authorized to register procedure '{0}'".format(register.procedure)])
session._transport.send(reply)
def on_authorize(authorized):
if authorized:
registration_id = util.id()
self._procs_to_regs[register.procedure] = (registration_id, session, register.discloseCaller)
self._regs_to_procs[registration_id] = register.procedure
self._session_to_registrations[session].add(registration_id)
reply = message.Registered(register.request, registration_id)
else:
reply = message.Error(message.Register.MESSAGE_TYPE, register.request, ApplicationError.NOT_AUTHORIZED, ["session is not authorized to register procedure URI '{}'".format(register.procedure)])
session._transport.send(reply)
def _register(obj, endpoint, procedure, options):
request = util.id()
d = self._create_future()
self._register_reqs[request] = (d, obj, endpoint, procedure, options)
if options is not None:
msg = message.Register(request, procedure, **options.options)
else:
msg = message.Register(request, procedure)
self._transport.send(msg)
return d
def _subscribe(obj, handler, topic, options):
request = util.id()
d = self._create_future()
self._subscribe_reqs[request] = (d, obj, handler, topic, options)
if options is not None:
msg = message.Subscribe(request, topic, **options.options)
else:
msg = message.Subscribe(request, topic)
self._transport.send(msg)
return d
def session_add_testament(self,
topic,
args,
kwargs,
publish_options=None,
scope=u"destroyed",
details=None):
"""
Add a testament to the current session.
:param topic: The topic to publish the testament to.
:type topic: str
:param args: A list of arguments for the publish.
:type args: list or tuple
:param kwargs: A dict of keyword arguments for the publish.
:type kwargs: dict
:param publish_options: The publish options for the publish.
:type publish_options: None or dict
:param scope: The scope of the testament, either "detached" or
"destroyed".
:type scope: str
:returns: The publication ID.
:rtype: int
"""
session = self._router._session_id_to_session[details.caller]
if scope not in [u"destroyed", u"detached"]:
raise ApplicationError(u"wamp.error.testament_error",
u"scope must be destroyed or detached")
pub_id = util.id()
# Get the publish options, remove some explicit keys
publish_options = publish_options or {}
publish_options.pop("acknowledge", None)
publish_options.pop("exclude_me", None)
pub = message.Publish(request=pub_id,
topic=topic,
args=args,
kwargs=kwargs,
**publish_options)
session._testaments[scope].append(pub)
return pub_id
def call(self, procedure, *args, **kwargs):
"""
Implements :func:`autobahn.wamp.interfaces.ICaller.call`
"""
if six.PY2 and type(procedure) == str:
procedure = six.u(procedure)
assert (isinstance(procedure, six.text_type))
if not self._transport:
raise exception.TransportLost()
request_id = util.id()
if 'options' in kwargs and isinstance(kwargs['options'],
types.CallOptions):
options = kwargs.pop('options')
msg = message.Call(request_id,
procedure,
args=args,
kwargs=kwargs,
**options.message_attr())
else:
options = None
msg = message.Call(request_id, procedure, args=args, kwargs=kwargs)
# FIXME
# def canceller(_d):
# cancel_msg = message.Cancel(request)
# self._transport.send(cancel_msg)
# d = Deferred(canceller)
on_reply = self._create_future()
self._call_reqs[request_id] = CallRequest(request_id, on_reply,
options)
try:
# Notes:
#
# * this might raise autobahn.wamp.exception.SerializationError
# when the user payload cannot be serialized
# * we have to setup a PublishRequest() in _publish_reqs _before_
# calling transpor.send(), because a mock- or side-by-side transport
# will immediately lead on an incoming WAMP message in onMessage()
#
self._transport.send(msg)
except Exception as e:
if request_id in self._call_reqs:
del self._call_reqs[request_id]
raise e
return on_reply
def publish(self, topic, *args, **kwargs):
"""
Implements :func:`autobahn.wamp.interfaces.IPublisher.publish`
"""
if six.PY2 and type(topic) == str:
topic = six.u(topic)
assert (type(topic) == six.text_type)
if not self._transport:
raise exception.TransportLost()
request_id = util.id()
if 'options' in kwargs and isinstance(kwargs['options'],
types.PublishOptions):
options = kwargs.pop('options')
msg = message.Publish(request_id,
topic,
args=args,
kwargs=kwargs,
**options.message_attr())
else:
options = None
msg = message.Publish(request_id, topic, args=args, kwargs=kwargs)
if options and options.acknowledge:
# only acknowledged publications expect a reply ..
on_reply = self._create_future()
self._publish_reqs[request_id] = PublishRequest(
request_id, on_reply)
else:
on_reply = None
try:
# Notes:
#
# * this might raise autobahn.wamp.exception.SerializationError
# when the user payload cannot be serialized
# * we have to setup a PublishRequest() in _publish_reqs _before_
# calling transpor.send(), because a mock- or side-by-side transport
# will immediately lead on an incoming WAMP message in onMessage()
#
self._transport.send(msg)
except Exception as e:
if request_id in self._publish_reqs:
del self._publish_reqs[request_id]
raise e
return on_reply
def __init__(self, handler):
self._log = False
self._handler = handler
self._serializer = serializer.JsonSerializer()
self._registrations = {}
self._invocations = {}
self._subscription_topics = {}
self._my_session_id = util.id()
self._handler.onOpen(self)
roles = {u'broker': role.RoleBrokerFeatures(), u'dealer': role.RoleDealerFeatures()}
msg = message.Welcome(self._my_session_id, roles)
self._handler.onMessage(msg)
def processCall(self, session, call):
"""
Implements :func:`autobahn.wamp.interfaces.IDealer.processCall`
"""
assert(session in self._session_to_registrations)
## check procedure URI
##
if (not self._option_uri_strict and not _URI_PAT_LOOSE_NON_EMPTY.match(call.procedure)) or \
( self._option_uri_strict and not _URI_PAT_STRICT_NON_EMPTY.match(call.procedure)):
reply = message.Error(message.Register.MESSAGE_TYPE, call.request, ApplicationError.INVALID_URI, ["call with invalid procedure URI '{}'".format(call.procedure)])
session._transport.send(reply)
else:
if call.procedure in self._procs_to_regs:
registration_id, endpoint_session, discloseCaller = self._procs_to_regs[call.procedure]
request_id = util.id()
if discloseCaller or call.discloseMe:
caller = session._session_id
authid = session._authid
authrole = session._authrole
authmethod = session._authmethod
else:
caller = None
authid = None
authrole = None
authmethod = None
invocation = message.Invocation(request_id,
registration_id,
args = call.args,
kwargs = call.kwargs,
timeout = call.timeout,
receive_progress = call.receive_progress,
caller = caller,
authid = authid,
authrole = authrole,
authmethod = authmethod)
self._invocations[request_id] = (call, session)
endpoint_session._transport.send(invocation)
else:
reply = message.Error(message.Call.MESSAGE_TYPE, call.request, ApplicationError.NO_SUCH_PROCEDURE, ["no procedure '{}' registered".format(call.procedure)])
session._transport.send(reply)
def _publish(self, event, options):
request = util.id()
msg = message.Publish(request=request,
topic=u".".join(
tokenise_mqtt_topic(event.topic_name)),
payload=event.payload,
**options.message_attr())
msg._mqtt_publish = True
self._wamp_session.onMessage(msg)
if event.qos_level > 0:
self._request_to_packetid[request] = event.packet_identifier
return succeed(0)
def _subscribe(obj, fn, topic, options):
request_id = util.id()
on_reply = self._create_future()
handler_obj = Handler(fn, obj,
options.details_arg if options else None)
self._subscribe_reqs[request_id] = SubscribeRequest(
request_id, on_reply, handler_obj)
if options:
msg = message.Subscribe(request_id, topic,
**options.message_attr())
else:
msg = message.Subscribe(request_id, topic)
self._transport.send(msg)
return on_reply
def _register(obj, fn, procedure, options):
request_id = util.id()
on_reply = self._create_future()
endpoint_obj = Endpoint(fn, obj,
options.details_arg if options else None)
self._register_reqs[request_id] = RegisterRequest(
request_id, on_reply, procedure, endpoint_obj)
if options:
msg = message.Register(request_id, procedure,
**options.message_attr())
else:
msg = message.Register(request_id, procedure)
self._transport.send(msg)
return on_reply
def on_authorize_success(authorized):
if authorized:
registration_id, endpoint_session, discloseCaller, discloseCallerTransport = self._procs_to_regs[
call.procedure]
request_id = util.id()
if discloseCaller or call.discloseMe:
caller = session._session_id
caller_transport = None
authid = session._authid
authrole = session._authrole
authmethod = session._authmethod
if discloseCallerTransport and hasattr(
session._transport, '_transport_info'):
caller_transport = session._transport._transport_info
else:
caller = None
caller_transport = None
authid = None
authrole = None
authmethod = None
invocation = message.Invocation(
request_id,
registration_id,
args=call.args,
kwargs=call.kwargs,
timeout=call.timeout,
receive_progress=call.receive_progress,
caller=caller,
caller_transport=caller_transport,
authid=authid,
authrole=authrole,
authmethod=authmethod)
self._invocations[request_id] = (call, session)
endpoint_session._transport.send(invocation)
else:
reply = message.Error(
message.Call.MESSAGE_TYPE, call.request,
ApplicationError.NOT_AUTHORIZED, [
"session is not authorized to call procedure '{0}'"
.format(call.procedure)
])
session._transport.send(reply)
def test_non_depleting(self):
res = {}
with open('/dev/urandom', 'rb') as rng:
for i in range(1000):
for j in range(100):
# "reseed" (seems pointless, but ..)
random.seed()
# random UUIDs
v1 = uuid.uuid4() # noqa
# stdlib random
v2 = random.random() # noqa
v3 = random.getrandbits(32) # noqa
v4 = random.randint(0, 9007199254740992) # noqa
v5 = random.normalvariate(10, 100) # noqa
v6 = random.choice(range(100)) # noqa
# PyNaCl
v7 = utils.random(public.Box.NONCE_SIZE) # noqa
# Autobahn utils
v8 = util.generate_token(4, 4) # noqa
v9 = util.id() # noqa
v10 = util.rid() # noqa
v11 = util.newid() # noqa
# direct procfs access to PRNG
d = rng.read(1000) # noqa
# check available entropy
with open('/proc/sys/kernel/random/entropy_avail', 'r') as ent:
ea = int(ent.read()) // 100
if ea not in res:
res[ea] = 0
res[ea] += 1
skeys = sorted(res.keys())
print('\nsystem entropy depletion stats:')
for k in skeys:
print('{}: {}'.format(k, res[k]))
self.assertTrue(skeys[0] > 0)
def processSubscribe(self, session, subscribe):
"""
Implements :func:`autobahn.wamp.interfaces.IBroker.processSubscribe`
"""
assert (session in self._session_to_subscriptions)
## check topic URI
##
if (not self._option_uri_strict and not _URI_PAT_LOOSE_NON_EMPTY.match(subscribe.topic)) or \
( self._option_uri_strict and not _URI_PAT_STRICT_NON_EMPTY.match(subscribe.topic)):
reply = message.Error(
message.Subscribe.MESSAGE_TYPE, subscribe.request,
ApplicationError.INVALID_URI, [
"subscribe for invalid topic URI '{}'".format(
subscribe.topic)
])
else:
if not subscribe.topic in self._topic_to_sessions:
subscription = util.id()
self._topic_to_sessions[subscribe.topic] = (subscription,
set())
subscription, subscribers = self._topic_to_sessions[
subscribe.topic]
if not session in subscribers:
subscribers.add(session)
if not subscription in self._subscription_to_sessions:
self._subscription_to_sessions[subscription] = (
subscribe.topic, set())
_, subscribers = self._subscription_to_sessions[subscription]
if not session in subscribers:
subscribers.add(session)
if not subscription in self._session_to_subscriptions[session]:
self._session_to_subscriptions[session].add(subscription)
reply = message.Subscribed(subscribe.request, subscription)
session._transport.send(reply)
def call(self, procedure, *args, **kwargs):
"""
Implements :func:`autobahn.wamp.interfaces.ICaller.call`
"""
if six.PY2 and type(procedure) == str:
procedure = six.u(procedure)
assert(isinstance(procedure, six.text_type))
if not self._transport:
raise exception.TransportLost()
request_id = util.id()
if 'options' in kwargs and isinstance(kwargs['options'], types.CallOptions):
options = kwargs.pop('options')
msg = message.Call(request_id, procedure, args=args, kwargs=kwargs, **options.message_attr())
else:
options = None
msg = message.Call(request_id, procedure, args=args, kwargs=kwargs)
# FIXME
# def canceller(_d):
# cancel_msg = message.Cancel(request)
# self._transport.send(cancel_msg)
# d = Deferred(canceller)
on_reply = txaio.create_future()
self._call_reqs[request_id] = CallRequest(request_id, on_reply, options)
try:
# Notes:
#
# * this might raise autobahn.wamp.exception.SerializationError
# when the user payload cannot be serialized
# * we have to setup a PublishRequest() in _publish_reqs _before_
# calling transpor.send(), because a mock- or side-by-side transport
# will immediately lead on an incoming WAMP message in onMessage()
#
self._transport.send(msg)
except Exception as e:
if request_id in self._call_reqs:
del self._call_reqs[request_id]
raise e
return on_reply
def session_add_testament(self, topic, args, kwargs, publish_options=None, scope=u"destroyed", details=None):
"""
Add a testament to the current session.
:param topic: The topic to publish the testament to.
:type topic: str
:param args: A list of arguments for the publish.
:type args: list or tuple
:param kwargs: A dict of keyword arguments for the publish.
:type kwargs: dict
:param publish_options: The publish options for the publish.
:type publish_options: None or dict
:param scope: The scope of the testament, either "detatched" or
"destroyed".
:type scope: str
:returns: The publication ID.
:rtype: int
"""
session = self._router._session_id_to_session[details.caller]
if scope not in [u"destroyed", u"detatched"]:
raise ApplicationError(u"wamp.error.testament_error", u"scope must be destroyed or detatched")
pub_id = util.id()
# Get the publish options, remove some explicit keys
publish_options = publish_options or {}
publish_options.pop("acknowledge", None)
publish_options.pop("exclude_me", None)
pub = message.Publish(
request=pub_id,
topic=topic,
args=args,
kwargs=kwargs,
**publish_options)
session._testaments[scope].append(pub)
return pub_id
def _get_retained_event():
if subscription.extra.retained_events:
retained_events = list(subscription.extra.retained_events)
retained_events.reverse()
for retained_event in retained_events:
authorized = False
if not retained_event.publish.exclude and not retained_event.publish.eligible:
authorized = True
elif session._session_id in retained_event.publish.eligible and session._session_id not in retained_event.publish.exclude:
authorized = True
if authorized:
publication = util.id()
if retained_event.publish.payload:
msg = message.Event(subscription.id,
publication,
payload=retained_event.publish.payload,
enc_algo=retained_event.publish.enc_algo,
enc_key=retained_event.publish.enc_key,
enc_serializer=retained_event.publish.enc_serializer,
publisher=retained_event.publisher,
publisher_authid=retained_event.publisher_authid,
publisher_authrole=retained_event.publisher_authrole,
retained=True)
else:
msg = message.Event(subscription.id,
publication,
args=retained_event.publish.args,
kwargs=retained_event.publish.kwargs,
publisher=retained_event.publisher,
publisher_authid=retained_event.publisher_authid,
publisher_authrole=retained_event.publisher_authrole,
retained=True)
msg.correlation_id = subscribe.correlation_id
msg.correlation_uri = subscribe.topic
msg.correlation_is_anchor = False
msg.correlation_is_last = False
return [msg]
return []
def __init__(self, handler):
self._log = False
self._handler = handler
self._serializer = serializer.JsonSerializer()
self._registrations = {}
self._invocations = {}
#: str -> ID
self._subscription_topics = {}
self._handler.onOpen(self)
self._my_session_id = util.id()
roles = {u"broker": role.RoleBrokerFeatures(), u"dealer": role.RoleDealerFeatures()}
msg = message.Welcome(self._my_session_id, roles)
self._handler.onMessage(msg)
self._fake_router_session = ApplicationSession()
def welcome(realm, authid = None, authrole = None, authmethod = None):
self._session_id = util.id()
self._goodbye_sent = False
self._router = self._router_factory.get(realm)
if not self._router:
raise Exception("no such realm")
self._authid = authid
self._authrole = authrole
self._authmethod = authmethod
roles = self._router.attach(self)
msg = message.Welcome(self._session_id, roles, authid = authid, authrole = authrole, authmethod = authmethod)
self._transport.send(msg)
self.onJoin(SessionDetails(self._realm, self._session_id, self._authid, self._authrole, self._authmethod))
def processRegister(self, session, register):
"""
Implements :func:`autobahn.wamp.interfaces.IDealer.processRegister`
"""
assert(session in self._session_to_registrations)
if not register.procedure in self._procs_to_regs:
registration_id = util.id()
self._procs_to_regs[register.procedure] = (registration_id, session)
self._regs_to_procs[registration_id] = register.procedure
self._session_to_registrations[session].add(registration_id)
reply = message.Registered(register.request, registration_id)
else:
reply = message.Error(message.Register.MESSAGE_TYPE, register.request, 'wamp.error.procedure_already_exists')
session._transport.send(reply)
def process_subscribe(self, packet):
packet_watch = OrderedDict()
d = Deferred()
@d.addCallback
def _(ign):
self._mqtt.send_suback(
packet.packet_identifier,
[x["response"] for x in packet_watch.values()])
del self._inflight_subscriptions[packet.packet_identifier]
del self._subrequest_callbacks[packet.packet_identifier]
self._subrequest_callbacks[packet.packet_identifier] = d
self._inflight_subscriptions[packet.packet_identifier] = packet_watch
for n, x in enumerate(packet.topic_requests):
topic, match = _mqtt_topicfilter_to_wamp(x.topic_filter)
self.log.info('process_subscribe -> topic={topic}, match={match}',
topic=topic,
match=match)
request_id = util.id()
msg = message.Subscribe(
request=request_id,
topic=topic,
match=match,
get_retained=True,
)
try:
packet_watch[request_id] = {
"response": -1,
"topic": x.topic_filter
}
self._subrequest_to_mqtt_subrequest[
request_id] = packet.packet_identifier
self._wamp_session.onMessage(msg)
except:
self.log.failure()
packet_watch[request_id] = {"response": 128}
def __init__(self, handler):
self._log = False
self._handler = handler
self._serializer = serializer.JsonSerializer()
self._registrations = {}
self._invocations = {}
#: str -> ID
self._subscription_topics = {}
self._handler.onOpen(self)
self._my_session_id = util.id()
roles = {'broker': role.RoleBrokerFeatures(), 'dealer': role.RoleDealerFeatures()}
msg = message.Welcome(self._my_session_id, roles)
self._handler.onMessage(msg)
self._fake_router_session = ApplicationSession()
self._transport_details = TransportDetails()
def _unregister(self, registration):
"""
Called from :meth:`autobahn.wamp.protocol.Registration.unregister`
"""
assert(isinstance(registration, Registration))
assert registration.active
assert(registration.id in self._registrations)
if not self._transport:
raise exception.TransportLost()
request = util.id()
d = self._create_future()
self._unregister_reqs[request] = (d, registration)
msg = message.Unregister(request, registration.id)
self._transport.send(msg)
return d
def _unsubscribe(self, subscription):
"""
Called from :meth:`autobahn.wamp.protocol.Subscription.unsubscribe`
"""
assert(isinstance(subscription, Subscription))
assert subscription.active
assert(subscription.id in self._subscriptions)
if not self._transport:
raise exception.TransportLost()
request = util.id()
d = self._create_future()
self._unsubscribe_reqs[request] = (d, subscription)
msg = message.Unsubscribe(request, subscription.id)
self._transport.send(msg)
return d
def call(self, procedure, *args, **kwargs):
"""
Reimplemented to support calls with custom options
"""
if six.PY2 and type(procedure) == str:
procedure = six.u(procedure)
assert(isinstance(procedure, six.text_type))
if not self._transport:
raise exception.TransportLost()
request_id = util.id()
on_reply = txaio.create_future()
self._call_reqs[request_id] = CallRequest(request_id, procedure, on_reply, {})
try:
self._transport.send(AkCall(request_id, procedure, args, kwargs))
except Exception as e:
if request_id in self._call_reqs:
del self._call_reqs[request_id]
raise e
return on_reply
def process_will(res):
payload_format, mapped_topic, options = yield self.factory.transform_mqtt(
packet.will_topic, packet.will_message)
request = util.id()
msg = message.Call(request=request,
procedure=u"wamp.session.add_testament",
args=[
mapped_topic,
options.get('args', None),
options.get('kwargs', None), {
'retain':
bool(packet.flags.will_retain)
}
])
self._wamp_session.onMessage(msg)
returnValue(res)
def on_authorize_success(authorized):
if not authorized:
reply = message.Error(
message.Subscribe.MESSAGE_TYPE, subscribe.request,
ApplicationError.NOT_AUTHORIZED, [
"session is not authorized to subscribe to topic '{0}'"
.format(subscribe.topic)
])
else:
if not subscribe.topic in self._topic_to_sessions:
subscription = util.id()
self._topic_to_sessions[subscribe.topic] = (
subscription, set())
subscription, subscribers = self._topic_to_sessions[
subscribe.topic]
if not session in subscribers:
subscribers.add(session)
if not subscription in self._subscription_to_sessions:
self._subscription_to_sessions[subscription] = (
subscribe.topic, set())
_, subscribers = self._subscription_to_sessions[
subscription]
if not session in subscribers:
subscribers.add(session)
if not subscription in self._session_to_subscriptions[
session]:
self._session_to_subscriptions[session].add(
subscription)
reply = message.Subscribed(subscribe.request, subscription)
session._transport.send(reply)
def process_subscribe(self, packet):
packet_watch = OrderedDict()
d = Deferred()
@d.addCallback
def _(ign):
self._mqtt.send_suback(
packet.packet_identifier,
[x["response"] for x in packet_watch.values()])
del self._inflight_subscriptions[packet.packet_identifier]
del self._subrequest_callbacks[packet.packet_identifier]
self._subrequest_callbacks[packet.packet_identifier] = d
self._inflight_subscriptions[packet.packet_identifier] = packet_watch
for n, x in enumerate(packet.topic_requests):
# fixme
match_type = u"exact"
request_id = util.id()
msg = message.Subscribe(
request=request_id,
topic=u".".join(tokenise_mqtt_topic(x.topic_filter)),
match=match_type,
get_retained=True,
)
try:
packet_watch[request_id] = {
"response": -1,
"topic": x.topic_filter
}
self._subrequest_to_mqtt_subrequest[
request_id] = packet.packet_identifier
self._wamp_session.onMessage(msg)
except Exception:
self.log.failure()
packet_watch[request_id] = {"response": 128}
def processRegister(self, session, register):
"""
Implements :func:`autobahn.wamp.interfaces.IDealer.processRegister`
"""
assert (session in self._session_to_registrations)
## check procedure URI
##
if (not self._option_uri_strict and not _URI_PAT_LOOSE_NON_EMPTY.match(register.procedure)) or \
( self._option_uri_strict and not _URI_PAT_STRICT_NON_EMPTY.match(register.procedure)):
reply = message.Error(
message.Register.MESSAGE_TYPE, register.request,
ApplicationError.INVALID_URI, [
"register for invalid procedure URI '{}'".format(
register.procedure)
])
else:
if not register.procedure in self._procs_to_regs:
registration_id = util.id()
self._procs_to_regs[register.procedure] = (
registration_id, session, register.discloseCaller)
self._regs_to_procs[registration_id] = register.procedure
self._session_to_registrations[session].add(registration_id)
reply = message.Registered(register.request, registration_id)
else:
reply = message.Error(
message.Register.MESSAGE_TYPE, register.request,
ApplicationError.PROCEDURE_ALREADY_EXISTS, [
"register for already registered procedure URI '{}'".
format(register.procedure)
])
session._transport.send(reply)
