def create_event_message(sender, tag, data, key):
'''
Create and sign a new event message to send to a Laniakea Lighthouse
instance for publication.
'''
if type(key) is str:
key = decode_signing_key_base64(NACL_ED25519, key)
msg = {
'tag': tag,
'uuid': str(uuid.uuid1()),
'format': '1.0',
'time': datetime.now().isoformat(),
'data': data
}
return sign_json(msg, sender, key)
def __init__(self, endpoints, pub_queue):
from laniakea import LocalConfig, LkModule
from laniakea.msgstream.signing import NACL_ED25519, decode_signing_key_base64, \
keyfile_read_signing_key
lconf = LocalConfig()
self._sockets = []
self._endpoints = endpoints
self._ctx = zmq.Context.instance()
self._pub_queue = pub_queue
# load our own signing key, so we can sign outgoing messages
keyfile = lconf.secret_curve_keyfile_for_module(LkModule.LIGHTHOUSE)
self._signer_id = None
self._signing_key = None
if os.path.isfile(keyfile):
self._signer_id, self._signing_key = keyfile_read_signing_key(keyfile)
if not self._signing_key:
log.warning('Can not sign outgoing messages: No valid signing key found for this module.')
else:
if type(self._signing_key) is str:
self._signing_key = decode_signing_key_base64(NACL_ED25519, self._signing_key)
def test_decode_invalid_key(self):
with pytest.raises(Exception):
decode_signing_key_base64("ed25519", "", self.version)
def test_decode_signing_invalid_algorithm(self):
with pytest.raises(Exception):
decode_signing_key_base64("not a valid alg", "", self.version)
def test_decode(self):
decoded_key = decode_signing_key_base64(
"ed25519", self.key_base64, self.version
)
assert decoded_key.alg == "ed25519"
assert decoded_key.version == self.version