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138 lines
7.8 KiB
138 lines
7.8 KiB
from hashlib import sha256 |
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from decimal import Decimal |
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from binascii import unhexlify, hexlify |
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import pprint |
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import unittest |
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from electrum.lnaddr import shorten_amount, unshorten_amount, LnAddr, lnencode, lndecode, u5_to_bitarray, bitarray_to_u5 |
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from electrum.segwit_addr import bech32_encode, bech32_decode |
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from electrum.lnutil import UnknownEvenFeatureBits, derive_payment_secret_from_payment_preimage |
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from . import ElectrumTestCase |
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RHASH=unhexlify('0001020304050607080900010203040506070809000102030405060708090102') |
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CONVERSION_RATE=1200 |
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PRIVKEY=unhexlify('e126f68f7eafcc8b74f54d269fe206be715000f94dac067d1c04a8ca3b2db734') |
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PUBKEY=unhexlify('03e7156ae33b0a208d0744199163177e909e80176e55d97a2f221ede0f934dd9ad') |
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class TestBolt11(ElectrumTestCase): |
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def test_shorten_amount(self): |
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tests = { |
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Decimal(10)/10**12: '10p', |
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Decimal(1000)/10**12: '1n', |
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Decimal(1200)/10**12: '1200p', |
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Decimal(123)/10**6: '123u', |
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Decimal(123)/1000: '123m', |
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Decimal(3): '3', |
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} |
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for i, o in tests.items(): |
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assert shorten_amount(i) == o |
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assert unshorten_amount(shorten_amount(i)) == i |
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@staticmethod |
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def compare(a, b): |
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if len([t[1] for t in a.tags if t[0] == 'h']) == 1: |
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h1 = sha256([t[1] for t in a.tags if t[0] == 'h'][0].encode('utf-8')).digest() |
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h2 = [t[1] for t in b.tags if t[0] == 'h'][0] |
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assert h1 == h2 |
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# Need to filter out these, since they are being modified during |
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# encoding, i.e., hashed |
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a.tags = [t for t in a.tags if t[0] != 'h' and t[0] != 'n'] |
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b.tags = [t for t in b.tags if t[0] != 'h' and t[0] != 'n'] |
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assert b.pubkey.serialize() == PUBKEY, (hexlify(b.pubkey.serialize()), hexlify(PUBKEY)) |
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assert b.signature != None |
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# Unset these, they are generated during encoding/decoding |
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b.pubkey = None |
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b.signature = None |
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assert a.__dict__ == b.__dict__, (pprint.pformat([a.__dict__, b.__dict__])) |
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def test_roundtrip(self): |
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longdescription = ('One piece of chocolate cake, one icecream cone, one' |
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' pickle, one slice of swiss cheese, one slice of salami,' |
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' one lollypop, one piece of cherry pie, one sausage, one' |
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' cupcake, and one slice of watermelon') |
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tests = [ |
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LnAddr(paymenthash=RHASH, tags=[('d', '')]), |
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LnAddr(paymenthash=RHASH, amount=Decimal('0.001'), tags=[('d', '1 cup coffee'), ('x', 60)]), |
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LnAddr(paymenthash=RHASH, amount=Decimal('1'), tags=[('h', longdescription)]), |
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LnAddr(paymenthash=RHASH, currency='tb', tags=[('f', 'mk2QpYatsKicvFVuTAQLBryyccRXMUaGHP'), ('h', longdescription)]), |
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LnAddr(paymenthash=RHASH, amount=24, tags=[ |
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('r', [(unhexlify('029e03a901b85534ff1e92c43c74431f7ce72046060fcf7a95c37e148f78c77255'), unhexlify('0102030405060708'), 1, 20, 3), |
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(unhexlify('039e03a901b85534ff1e92c43c74431f7ce72046060fcf7a95c37e148f78c77255'), unhexlify('030405060708090a'), 2, 30, 4)]), |
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('f', '1RustyRX2oai4EYYDpQGWvEL62BBGqN9T'), |
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('h', longdescription)]), |
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LnAddr(paymenthash=RHASH, amount=24, tags=[('f', '3EktnHQD7RiAE6uzMj2ZifT9YgRrkSgzQX'), ('h', longdescription)]), |
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LnAddr(paymenthash=RHASH, amount=24, tags=[('f', 'bc1qw508d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4'), ('h', longdescription)]), |
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LnAddr(paymenthash=RHASH, amount=24, tags=[('f', 'bc1qrp33g0q5c5txsp9arysrx4k6zdkfs4nce4xj0gdcccefvpysxf3qccfmv3'), ('h', longdescription)]), |
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LnAddr(paymenthash=RHASH, amount=24, tags=[('n', PUBKEY), ('h', longdescription)]), |
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LnAddr(paymenthash=RHASH, amount=24, tags=[('h', longdescription), ('9', 514)]), |
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LnAddr(paymenthash=RHASH, amount=24, tags=[('h', longdescription), ('9', 10 + (1 << 8))]), |
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LnAddr(paymenthash=RHASH, amount=24, tags=[('h', longdescription), ('9', 10 + (1 << 9))]), |
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LnAddr(paymenthash=RHASH, amount=24, tags=[('h', longdescription), ('9', 10 + (1 << 7) + (1 << 11))]), |
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LnAddr(paymenthash=RHASH, amount=24, tags=[('h', longdescription), ('9', 10 + (1 << 12))]), |
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LnAddr(paymenthash=RHASH, amount=24, tags=[('h', longdescription), ('9', 10 + (1 << 13))]), |
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LnAddr(paymenthash=RHASH, amount=24, tags=[('h', longdescription), ('9', 10 + (1 << 9) + (1 << 14))]), |
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LnAddr(paymenthash=RHASH, amount=24, tags=[('h', longdescription), ('9', 10 + (1 << 9) + (1 << 15))]), |
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LnAddr(paymenthash=RHASH, amount=24, tags=[('h', longdescription), ('9', 33282)], payment_secret=b"\x11" * 32), |
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] |
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# Roundtrip |
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for t in tests: |
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o = lndecode(lnencode(t, PRIVKEY), expected_hrp=t.currency) |
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self.compare(t, o) |
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def test_n_decoding(self): |
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# We flip the signature recovery bit, which would normally give a different |
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# pubkey. |
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hrp, data = bech32_decode(lnencode(LnAddr(paymenthash=RHASH, amount=24, tags=[('d', '')]), PRIVKEY), True) |
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databits = u5_to_bitarray(data) |
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databits.invert(-1) |
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lnaddr = lndecode(bech32_encode(hrp, bitarray_to_u5(databits)), verbose=True) |
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assert lnaddr.pubkey.serialize() != PUBKEY |
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# But not if we supply expliciy `n` specifier! |
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hrp, data = bech32_decode(lnencode(LnAddr(paymenthash=RHASH, amount=24, |
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tags=[('d', ''), |
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('n', PUBKEY)]), |
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PRIVKEY), True) |
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databits = u5_to_bitarray(data) |
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databits.invert(-1) |
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lnaddr = lndecode(bech32_encode(hrp, bitarray_to_u5(databits)), verbose=True) |
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assert lnaddr.pubkey.serialize() == PUBKEY |
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def test_min_final_cltv_expiry_decoding(self): |
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lnaddr = lndecode("lnsb500u1pdsgyf3pp5nmrqejdsdgs4n9ukgxcp2kcq265yhrxd4k5dyue58rxtp5y83s3qdqqcqzystrggccm9yvkr5yqx83jxll0qjpmgfg9ywmcd8g33msfgmqgyfyvqhku80qmqm8q6v35zvck2y5ccxsz5avtrauz8hgjj3uahppyq20qp6dvwxe", |
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expected_hrp="sb") |
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self.assertEqual(144, lnaddr.get_min_final_cltv_expiry()) |
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def test_min_final_cltv_expiry_roundtrip(self): |
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lnaddr = LnAddr(paymenthash=RHASH, amount=Decimal('0.001'), tags=[('d', '1 cup coffee'), ('x', 60), ('c', 150)]) |
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invoice = lnencode(lnaddr, PRIVKEY) |
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self.assertEqual(150, lndecode(invoice).get_min_final_cltv_expiry()) |
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def test_features(self): |
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lnaddr = lndecode("lnbc25m1pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqdq5vdhkven9v5sxyetpdees9qzsze992adudgku8p05pstl6zh7av6rx2f297pv89gu5q93a0hf3g7lynl3xq56t23dpvah6u7y9qey9lccrdml3gaqwc6nxsl5ktzm464sq73t7cl") |
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self.assertEqual(514, lnaddr.get_tag('9')) |
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with self.assertRaises(UnknownEvenFeatureBits): |
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lndecode("lnbc25m1pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqdq5vdhkven9v5sxyetpdees9q4pqqqqqqqqqqqqqqqqqqszk3ed62snp73037h4py4gry05eltlp0uezm2w9ajnerhmxzhzhsu40g9mgyx5v3ad4aqwkmvyftzk4k9zenz90mhjcy9hcevc7r3lx2sphzfxz7") |
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def test_payment_secret(self): |
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lnaddr = lndecode("lnbc25m1pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqsp5zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zygsdq5vdhkven9v5sxyetpdees9q5sqqqqqqqqqqqqqqqpqsqvvh7ut50r00p3pg34ea68k7zfw64f8yx9jcdk35lh5ft8qdr8g4r0xzsdcrmcy9hex8un8d8yraewvhqc9l0sh8l0e0yvmtxde2z0hgpzsje5l") |
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self.assertEqual((1 << 9) + (1 << 15) + (1 << 99), lnaddr.get_tag('9')) |
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self.assertEqual(b"\x11" * 32, lnaddr.payment_secret) |
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def test_derive_payment_secret_from_payment_preimage(self): |
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preimage = bytes.fromhex("cc3fc000bdeff545acee53ada12ff96060834be263f77d645abbebc3a8d53b92") |
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self.assertEqual("bfd660b559b3f452c6bb05b8d2906f520c151c107b733863ed0cc53fc77021a8", |
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derive_payment_secret_from_payment_preimage(preimage).hex())
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