def __init__(
self,
host: str,
port: int,
public_key: Optional[str] = None,
multihash_id: Optional[str] = None,
):
"""
Initialize a multiaddress.
:param host: ip host of the address
:param port: port number of the address
:param public_key: hex encoded public key. Must conform to Bitcoin EC encoding standard for Secp256k1
:param multihash_id: a multihash of the public key
"""
self._host = host
self._port = port
if public_key is not None:
try:
VerifyingKey._from_compressed(_hex_to_bytes(public_key),
curves.SECP256k1)
except keys.MalformedPointError as e: # pragma: no cover
raise ValueError("Malformed public key '{}': {}".format(
public_key, str(e)))
self._public_key = public_key
self._peerid = self.compute_peerid(self._public_key)
elif multihash_id is not None:
try:
multihash.decode(base58.b58decode(multihash_id))
except Exception as e:
raise ValueError("Malformed multihash '{}': {}".format(
multihash_id, str(e)))
self._public_key = ""
self._peerid = multihash_id
else:
raise ValueError( # pragma: no cover
"MultiAddr requires either public_key or multihash_id to be provided."
)
