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94 lines
4.5 KiB
94 lines
4.5 KiB
from hashlib import sha256
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from lib.lightning_payencode.lnaddr import shorten_amount, unshorten_amount, LnAddr, lnencode, lndecode, u5_to_bitarray, bitarray_to_u5
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from decimal import Decimal
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from binascii import unhexlify, hexlify
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from lib.segwit_addr import bech32_encode, bech32_decode
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import pprint
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import unittest
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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(unittest.TestCase):
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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(RHASH, tags=[('d', '')]),
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LnAddr(RHASH, amount=Decimal('0.001'),
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tags=[('d', '1 cup coffee'), ('x', 60)]),
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LnAddr(RHASH, amount=Decimal('1'), tags=[('h', longdescription)]),
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LnAddr(RHASH, currency='tb', tags=[('f', 'mk2QpYatsKicvFVuTAQLBryyccRXMUaGHP'), ('h', longdescription)]),
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LnAddr(RHASH, amount=24, tags=[
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('r', [(unhexlify('029e03a901b85534ff1e92c43c74431f7ce72046060fcf7a95c37e148f78c77255'), unhexlify('0102030405060708'), 1, 20, 3), (unhexlify('039e03a901b85534ff1e92c43c74431f7ce72046060fcf7a95c37e148f78c77255'), unhexlify('030405060708090a'), 2, 30, 4)]), ('f', '1RustyRX2oai4EYYDpQGWvEL62BBGqN9T'), ('h', longdescription)]),
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LnAddr(RHASH, amount=24, tags=[('f', '3EktnHQD7RiAE6uzMj2ZifT9YgRrkSgzQX'), ('h', longdescription)]),
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LnAddr(RHASH, amount=24, tags=[('f', 'bc1qw508d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4'), ('h', longdescription)]),
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LnAddr(RHASH, amount=24, tags=[('f', 'bc1qrp33g0q5c5txsp9arysrx4k6zdkfs4nce4xj0gdcccefvpysxf3qccfmv3'), ('h', longdescription)]),
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LnAddr(RHASH, amount=24, tags=[('n', PUBKEY), ('h', longdescription)]),
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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), False, 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(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)), 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(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)), True)
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assert lnaddr.pubkey.serialize() == PUBKEY
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