def sendmsg(node_id, msg, plugin, request, pay=None, **kwargs):
timestamp = struct.pack("!Q", int(time.time() * 1000))
payload = TlvPayload()
payload.add_field(TLV_NOISE_MESSAGE, msg.encode('UTF-8'))
payload.add_field(TLV_NOISE_TIMESTAMP, timestamp)
payment_key = os.urandom(32)
payment_hash = hashlib.sha256(payment_key).digest()
# If we don't want to tell the recipient how to claim the funds unset the
# payment_key
if pay is not None:
payload.add_field(TLV_KEYSEND_PREIMAGE, payment_key)
# Signature generation always has to be last, otherwise we won't agree on
# the TLV payload and verification ends up with a bogus sender node_id.
sigmsg = hexlify(payload.to_bytes()).decode('ASCII')
sig = plugin.rpc.signmessage(sigmsg)
sigcheck = plugin.rpc.checkmessage(sigmsg, sig['zbase'])
sig = zbase32.decode(sig['zbase'])
payload.add_field(TLV_NOISE_SIGNATURE, sig)
res = deliver(
node_id,
payload.to_bytes(),
amt=pay if pay is not None else 10,
payment_hash=payment_hash
)
request.set_result(res)
def test_zbase32():
zb32 = b'd75qtmgijm79rpooshmgzjwji9gj7dsdat8remuskyjp9oq1ugkaoj6orbxzhuo4njtyh96e3aq84p1tiuz77nchgxa1s4ka4carnbiy'
b = zbase32.decode(zb32)
enc = zbase32.encode(b)
assert (enc == zb32)