Files
palladum-lightning/tests/plugins/htlc_accepted-customtlv.py
Peter Neuroth dbbb113123 tests: Add tests for extra_tlvs in hook
Adds some testcases for custom tlvs, set by a htlc_accepted_hook. We
check that the custom tlvs replace the update_add_htlc_tlvs and get
forwarded to the peer. We also check that a malformed tlv will result in
a **BROKEN** behaviour.

Signed-off-by: Peter Neuroth <pet.v.ne@gmail.com>
2025-08-14 18:57:05 +09:30

39 lines
923 B
Python
Executable File

#!/usr/bin/env python3
"""A simply plugin that returns a custom tlv stream (byte encoded) to be
attached to a forwarding HTLC.
"""
from pyln.client import Plugin
plugin = Plugin()
custom_tlvs = None
@plugin.hook("htlc_accepted")
def on_htlc_accepted(htlc, onion, plugin, **kwargs):
if 'extra_tlvs' in htlc:
print(f"called htlc accepted hook with extra_tlvs: {htlc['extra_tlvs']}")
print(f'returning continue with custom extra_tlvs: {custom_tlvs}')
if custom_tlvs:
return {"result": "continue", "extra_tlvs": custom_tlvs}
return {"result": "continue"}
@plugin.method("setcustomtlvs")
def setcustomtlvs(plugin, tlvs):
"""Sets the custom tlv to return when receiving an incoming HTLC.
"""
global custom_tlvs
print(f'setting custom tlv to {tlvs}')
custom_tlvs = tlvs
@plugin.init()
def on_init(**kwargs):
global custom_tlvs
custom_tlvs = None
plugin.run()