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lnaddr: add feature bit support to invoices

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see https://github.com/lightningnetwork/lightning-rfc/pull/656
This commit is contained in:
SomberNight
2020-03-24 15:31:19 +01:00
parent a66437f399
commit 4b78bf94d4
5 changed files with 64 additions and 23 deletions
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25
electrum/tests/test_bolt11.py
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@@ -6,6 +6,7 @@ import unittest
from electrum.lnaddr import shorten_amount, unshorten_amount, LnAddr, lnencode, lndecode, u5_to_bitarray, bitarray_to_u5
from electrum.segwit_addr import bech32_encode, bech32_decode
from electrum.lnutil import UnknownEvenFeatureBits
from . import ElectrumTestCase
@@ -66,11 +67,22 @@ class TestBolt11(ElectrumTestCase):
LnAddr(RHASH, amount=Decimal('1'), tags=[('h', longdescription)]),
LnAddr(RHASH, currency='tb', tags=[('f', 'mk2QpYatsKicvFVuTAQLBryyccRXMUaGHP'), ('h', longdescription)]),
LnAddr(RHASH, amount=24, tags=[
('r', [(unhexlify('029e03a901b85534ff1e92c43c74431f7ce72046060fcf7a95c37e148f78c77255'), unhexlify('0102030405060708'), 1, 20, 3), (unhexlify('039e03a901b85534ff1e92c43c74431f7ce72046060fcf7a95c37e148f78c77255'), unhexlify('030405060708090a'), 2, 30, 4)]), ('f', '1RustyRX2oai4EYYDpQGWvEL62BBGqN9T'), ('h', longdescription)]),
('r', [(unhexlify('029e03a901b85534ff1e92c43c74431f7ce72046060fcf7a95c37e148f78c77255'), unhexlify('0102030405060708'), 1, 20, 3),
(unhexlify('039e03a901b85534ff1e92c43c74431f7ce72046060fcf7a95c37e148f78c77255'), unhexlify('030405060708090a'), 2, 30, 4)]),
('f', '1RustyRX2oai4EYYDpQGWvEL62BBGqN9T'),
('h', longdescription)]),
LnAddr(RHASH, amount=24, tags=[('f', '3EktnHQD7RiAE6uzMj2ZifT9YgRrkSgzQX'), ('h', longdescription)]),
LnAddr(RHASH, amount=24, tags=[('f', 'bc1qw508d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4'), ('h', longdescription)]),
LnAddr(RHASH, amount=24, tags=[('f', 'bc1qrp33g0q5c5txsp9arysrx4k6zdkfs4nce4xj0gdcccefvpysxf3qccfmv3'), ('h', longdescription)]),
LnAddr(RHASH, amount=24, tags=[('n', PUBKEY), ('h', longdescription)]),
LnAddr(RHASH, amount=24, tags=[('h', longdescription), ('9', 514)]),
LnAddr(RHASH, amount=24, tags=[('h', longdescription), ('9', 10 + (1 << 8))]),
LnAddr(RHASH, amount=24, tags=[('h', longdescription), ('9', 10 + (1 << 9))]),
LnAddr(RHASH, amount=24, tags=[('h', longdescription), ('9', 10 + (1 << 11))]),
LnAddr(RHASH, amount=24, tags=[('h', longdescription), ('9', 10 + (1 << 12))]),
LnAddr(RHASH, amount=24, tags=[('h', longdescription), ('9', 10 + (1 << 13))]),
#LnAddr(RHASH, amount=24, tags=[('h', longdescription), ('9', 10 + (1 << 14))]),
LnAddr(RHASH, amount=24, tags=[('h', longdescription), ('9', 10 + (1 << 15))]),
]
# Roundtrip
@@ -98,9 +110,18 @@ class TestBolt11(ElectrumTestCase):
assert lnaddr.pubkey.serialize() == PUBKEY
def test_min_final_cltv_expiry_decoding(self):
self.assertEqual(144, lndecode("lnsb500u1pdsgyf3pp5nmrqejdsdgs4n9ukgxcp2kcq265yhrxd4k5dyue58rxtp5y83s3qdqqcqzystrggccm9yvkr5yqx83jxll0qjpmgfg9ywmcd8g33msfgmqgyfyvqhku80qmqm8q6v35zvck2y5ccxsz5avtrauz8hgjj3uahppyq20qp6dvwxe", expected_hrp="sb").get_min_final_cltv_expiry())
lnaddr = lndecode("lnsb500u1pdsgyf3pp5nmrqejdsdgs4n9ukgxcp2kcq265yhrxd4k5dyue58rxtp5y83s3qdqqcqzystrggccm9yvkr5yqx83jxll0qjpmgfg9ywmcd8g33msfgmqgyfyvqhku80qmqm8q6v35zvck2y5ccxsz5avtrauz8hgjj3uahppyq20qp6dvwxe",
expected_hrp="sb")
self.assertEqual(144, lnaddr.get_min_final_cltv_expiry())
def test_min_final_cltv_expiry_roundtrip(self):
lnaddr = LnAddr(RHASH, amount=Decimal('0.001'), tags=[('d', '1 cup coffee'), ('x', 60), ('c', 150)])
invoice = lnencode(lnaddr, PRIVKEY)
self.assertEqual(150, lndecode(invoice).get_min_final_cltv_expiry())
def test_features(self):
lnaddr = lndecode("lnbc25m1pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqdq5vdhkven9v5sxyetpdees9qzsze992adudgku8p05pstl6zh7av6rx2f297pv89gu5q93a0hf3g7lynl3xq56t23dpvah6u7y9qey9lccrdml3gaqwc6nxsl5ktzm464sq73t7cl")
self.assertEqual(514, lnaddr.get_tag('9'))
with self.assertRaises(UnknownEvenFeatureBits):
lndecode("lnbc25m1pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqdq5vdhkven9v5sxyetpdees9q4pqqqqqqqqqqqqqqqqqqszk3ed62snp73037h4py4gry05eltlp0uezm2w9ajnerhmxzhzhsu40g9mgyx5v3ad4aqwkmvyftzk4k9zenz90mhjcy9hcevc7r3lx2sphzfxz7")