def test_serialize_from_objects(self):
"""
Tests that serialize/deserialize are inverse operations with from_objects factory function
"""
sk, vk = W.new()
message = self._default_msg()
env = Envelope.create_from_message(message=message, signing_key=sk, verifying_key=vk)
self.assertEqual(env, Envelope.from_bytes(env.serialize()))
def _validate_envelope(self, envelope_binary: bytes, header: str) -> Union[None, Envelope]:
# TODO return/raise custom exceptions in this instead of just logging stuff and returning none
# Deserialize envelope
env = None
try:
env = Envelope.from_bytes(envelope_binary)
except Exception as e:
self.log.error("\n\n\nError deserializing envelope: {}\n\n\n".format(e))
return None
# Check seal
if not env.verify_seal():
self.log.error("\n\n\nSeal could not be verified for envelope {}\n\n\n".format(env))
return None
# If header is not none (meaning this is a ROUTE msg with an ID frame), then verify that the ID frame is
# the same as the vk on the seal
if header and (header != env.seal.verifying_key):
self.log.error("\n\n\nHeader frame {} does not match seal's vk {}\nfor envelope {}\n\n\n"
.format(header, env.seal.verifying_key, env))
return None
# Make sure we haven't seen this message before
if env.meta.uuid in Executor._recently_seen:
self.log.warning("Duplicate envelope detect with UUID {}. Ignoring.".format(env.meta.uuid))
return None
# TODO -- checks timestamp to ensure this envelope is recv'd in a somewhat reasonable time (within N seconds)
# If none of the above checks above return None, this envelope should be good
return env
def create(cls,
envelope: Envelope = None,
envelope_binary: bytes = None,
**kwargs):
assert not (
envelope and envelope_binary
), "Either envelope or envelope_binary should be passed in (not both)"
cmd = reactor_capnp.ReactorCommand.new_message()
if envelope:
assert isinstance(
envelope,
Envelope), "'envelope' kwarg must be an Envelope instance"
cmd.envelope.data = envelope.serialize()
if envelope_binary:
assert isinstance(envelope_binary,
bytes), "'envelope_binary' must be bytes"
cmd.envelope.data = envelope_binary
cmd.init('kwargs', len(kwargs))
for i, key in enumerate(kwargs):
cmd.kwargs[i].key, cmd.kwargs[i].value = str(key), str(kwargs[key])
return cls.from_data(cmd)
def run(self):
count = 0
while count < NUM_SENDS:
time.sleep(SEND_RATE)
self.log.critical("Stu sending stab")
stab = Stab.from_data("stab #{}".format(count))
self.parent.reactor.pub(url=URL2, data=Envelope.create(stab))
count += 1
def send_pub(self, filter: str, envelope: bytes):
assert isinstance(filter, str), "'id' arg must be a string"
assert isinstance(envelope, bytes), "'envelope' arg must be bytes"
assert len(self.pubs) > 0, "Attempted to publish data but publisher socket(s) is not configured"
for url in self.pubs:
self.log.debug("Publishing to URL {} with envelope: {}".format(url, Envelope.from_bytes(envelope)))
# self.log.info("Publishing to... {}".format(url))
self.pubs[url].send_multipart([filter.encode(), envelope])
def _package_msg(self, msg: MessageBase) -> Envelope:
"""
Convenience method to package a message into an envelope
:param msg: The MessageBase instance to package
:return: An Envelope instance
"""
assert type(msg) is not Envelope, "Attempted to package a 'message' that is already an envelope"
assert issubclass(type(msg), MessageBase), "Attempted to package a message that is not a MessageBase subclass"
return Envelope.create_from_message(message=msg, signing_key=self.signing_key, verifying_key=self.verifying_key)
def recv_poke_req(self, poke: PokeRequest, id):
self.log.critical("Stu got poke {}, but waiting {} seconds...".format(REPLY_WAIT))
time.sleep(REPLY_WAIT)
self.log.critical("Stu replying to poke <{}> with id {}".format(poke, id))
reply = PokeReply.from_data("yoyo this is my reply to {}".format(poke))
stab = Stab.from_data("stab!")
self.parent.reactor.pub(url=URL2, data=Envelope.create(stab))
return reply
def _recv_reply_env(self, header: str, envelope: Envelope):
self.log.debug("Recv REPLY envelope with header {} and envelope {}".format(header, envelope))
reply_uuid = envelope.meta.uuid
if reply_uuid in self.expected_replies:
self.log.debug("Removing reply with uuid {} from expected replies".format(reply_uuid))
self.expected_replies[reply_uuid].cancel()
del(self.expected_replies[reply_uuid])
self.call_on_mp(callback=StateInput.INPUT, header=header, envelope_binary=envelope.serialize())
def test_create_with_envelope(self):
"""
Tests creating a message with an envelope produces an object with the expected properties
"""
sk, vk = ED25519Wallet.new()
tx = StandardTransactionBuilder.random_tx()
sender = 'me'
env = Envelope.create_from_message(message=tx, signing_key=sk)
cmd = ReactorCommand.create_cmd('some_cls', 'some_func', envelope=env)
self.assertTrue(ReactorCommand.envelope, env)
def test_create_from_message(self):
"""
Tests create_from_message with valid args (no vk passed) creates an envelope valid signature and expected fields
"""
sk, vk = W.new()
msg = self._default_msg()
env = Envelope.create_from_message(message=msg, signing_key=sk)
self.assertTrue(env.verify_seal())
self.assertEqual(env.message, msg)
self.assertEqual(env.seal.verifying_key, vk)
def test_lazy_serialize(self):
"""
Tests that creating an envelope from_bytes does not try to repack the underlying struct when serialize is called.
This is b/c the serialize() func should be 'cached' with the binary data passed into from_bytes
"""
sk, vk = W.new()
message = self._default_msg()
env = Envelope.create_from_message(message=message, signing_key=sk, verifying_key=vk)
env_binary = env.serialize()
clone = Envelope.from_bytes(env_binary)
clone._data = MagicMock()
clone_binary = clone.serialize() # this should not pack the capnp struct (_data) again
# The Envelope Kitchen Sink lol -- make sure no serialization related API is called
clone._data.as_builder.assert_not_called()
clone._data.to_bytes_packed.assert_not_called()
clone._data.to_bytes.assert_not_called()
def test_create_from_objects(self):
"""
Test that create returns an object with expected properties
"""
seal = self._default_seal()
meta = self._default_meta()
message = self._default_msg()
env = Envelope.create_from_objects(seal=seal, meta=meta, message=message.serialize())
self.assertEqual(env.seal, seal)
self.assertEqual(env.meta, meta)
self.assertEqual(env.message, message)
def test_validate_bad_seal(self):
meta = self._default_meta()
message = self._default_msg()
sk, vk = W.new()
sk2, vk2 = W.new()
signature = EnvelopeAuth.seal(signing_key=sk, meta=meta, message=message)
seal = Seal.create(signature=signature, verifying_key=vk2)
env = Envelope.create_from_objects(seal=seal, meta=meta, message=message.serialize())
self.assertFalse(env.verify_seal())
def route(self, msg_binary: bytes):
msg = None
try:
envelope = Envelope.from_bytes(msg_binary)
msg = envelope.open()
except Exception as e:
self.log.error("Error opening envelope: {}".format(e))
if type(msg) in self._receivers:
self.log.debug("Routing msg: {}".format(msg))
self._receivers[type(msg)](self, msg)
else:
self.log.error("Message {} has no implemented receiver in {}".format(msg, self._receivers))
def test_verify_seal(self):
"""
Tests verify seal with a valid signature
"""
meta = self._default_meta()
message = self._default_msg()
sk, vk = W.new()
signature = EnvelopeAuth.seal(signing_key=sk, meta=meta, message=message)
seal = Seal.create(signature=signature, verifying_key=vk)
env = Envelope.create_from_message(message=message, signing_key=sk, verifying_key=vk)
self.assertTrue(env.verify_seal())
def _package_reply(self, reply: MessageBase, req_env: Envelope) -> Envelope:
"""
Convenience method to create a reply envelope. The difference between this func and _package_msg, is that
in the reply envelope the UUID must be the hash of the original request's uuid (not some randomly generated int)
:param reply: The reply message (an instance of MessageBase)
:param req_env: The original request envelope (an instance of Envelope)
:return: An Envelope instance
"""
self.log.debug("Creating REPLY envelope with msg type {} for request envelope {}".format(type(reply), req_env))
request_uuid = req_env.meta.uuid
reply_uuid = EnvelopeAuth.reply_uuid(request_uuid)
return Envelope.create_from_message(message=reply, signing_key=self.signing_key,
verifying_key=self.verifying_key, uuid=reply_uuid)
def test_validate_envelope(self):
"""
Tests validate envelope function
"""
meta = self._default_meta()
message = self._default_msg()
sk, vk = W.new()
signature = EnvelopeAuth.seal(signing_key=sk, meta=meta, message=message)
seal = Seal.create(signature=signature, verifying_key=vk)
env = Envelope.create_from_objects(seal=seal, meta=meta, message=message.serialize())
env.validate()
def test_verify_seal_invalid(self):
"""
Tests verifying a seal with an invalid signature
"""
meta = self._default_meta()
message = self._default_msg()
sk, vk = W.new()
sk_prime = 'A' * 64
signature = EnvelopeAuth.seal(signing_key=sk_prime, meta=meta, message=message)
seal = Seal.create(signature=signature, verifying_key=vk)
env = Envelope.create_from_objects(seal=seal, meta=meta, message=message.serialize())
env.verify_seal()
def test_create_from_message_bad_keypair(self):
"""
test create_from_message passing in sk does and incorrect vk
"""
sk, vk = W.new()
sk1, vk1 = W.new()
msg = self._default_msg()
sender = 'dat boi'
env = Envelope.create_from_message(message=msg, signing_key=sk, verifying_key=vk) # no error
self.assertEqual(env.seal.verifying_key, vk)
self.assertRaises(Exception, Envelope.create_from_message, msg, sk, sender, vk1)
self.assertNotEqual(env.seal.verifying_key, vk1)
def envelope(self):
if self._data.envelope.which() == 'unset':
return None
else:
return Envelope.from_bytes(self._data.envelope.data)
def send_poke(self, poke_msg):
poke = Poke.from_data(poke_msg)
evl = Envelope.create(poke)
self.reactor.pub(url=self.url, data=evl.serialize())
def _recv_request_env(self, header: str, envelope: Envelope):
self.log.debug("Recv REQUEST envelope with header {} and envelope {}".format(header, envelope))
self.call_on_mp(callback=StateInput.REQUEST, header=header, envelope_binary=envelope.serialize())
def _recv_pub_env(self, header: str, envelope: Envelope):
self.log.debug("Recv'd pub envelope with header {} and env {}".format(header, envelope))
self.call_on_mp(callback=StateInput.INPUT, envelope_binary=envelope.serialize())
