def on_htlc_accepted(onion, htlc, plugin, **kwargs):
payload = OnionPayload.from_hex(onion['payload'])
if not isinstance(payload, TlvPayload):
plugin.log("Payload is not a TLV payload")
return {'result': 'continue'}
body_field = payload.get(34349334)
signature_field = payload.get(34349335)
if body_field is None or signature_field is None:
plugin.log("Missing message body or signature, ignoring HTLC")
return {'result': 'continue'}
msg = Message(id=len(plugin.messages),
sender=None,
body=body_field.value,
signature=signature_field.value,
payment=None)
# Filter out the signature so we can check it against the rest of the payload
sigpayload = TlvPayload()
sigpayload.fields = filter(lambda x: x.typenum != TLV_NOISE_SIGNATURE,
payload.fields)
sigmsg = hexlify(sigpayload.to_bytes()).decode('ASCII')
zsig = zbase32.encode(msg.signature).decode('ASCII')
sigcheck = plugin.rpc.checkmessage(sigmsg, zsig)
msg.sender = sigcheck['pubkey']
msg.verified = sigcheck['verified']
preimage = payload.get(TLV_KEYSEND_PREIMAGE)
if preimage is not None:
msg.payment = Payment(preimage.value, htlc['amount'])
res = {
'result': 'resolve',
'payment_key': hexlify(preimage.value).decode('ASCII')
}
else:
res = {'result': 'continue'}
plugin.messages.append(msg)
print("Delivering message to {c} waiters".format(
c=len(plugin.receive_waiters)))
for r in plugin.receive_waiters:
m = msg.to_dict()
m['total_messages'] = len(plugin.messages)
r.set_result(m)
plugin.receive_waiters = []
return res
def test_zbase32():
zb32 = b'd75qtmgijm79rpooshmgzjwji9gj7dsdat8remuskyjp9oq1ugkaoj6orbxzhuo4njtyh96e3aq84p1tiuz77nchgxa1s4ka4carnbiy'
b = zbase32.decode(zb32)
enc = zbase32.encode(b)
assert (enc == zb32)