def test_encode_decode_msg__init(self):
# "init" is interesting because it has TLVs optionally
self.assertEqual(
bfh("00100000000220c2"),
encode_msg(
"init",
gflen=0,
flen=2,
features=(LnFeatures.OPTION_STATIC_REMOTEKEY_OPT
| LnFeatures.GOSSIP_QUERIES_OPT
| LnFeatures.GOSSIP_QUERIES_REQ
| LnFeatures.OPTION_DATA_LOSS_PROTECT_OPT),
))
self.assertEqual(
bfh("00100000000220c2"),
encode_msg("init", gflen=0, flen=2, features=bfh("20c2")))
self.assertEqual(
bfh("00100000000220c2012043497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000"
),
encode_msg(
"init",
gflen=0,
flen=2,
features=(LnFeatures.OPTION_STATIC_REMOTEKEY_OPT
| LnFeatures.GOSSIP_QUERIES_OPT
| LnFeatures.GOSSIP_QUERIES_REQ
| LnFeatures.OPTION_DATA_LOSS_PROTECT_OPT),
init_tlvs={
'networks': {
'chains':
b'CI\x7f\xd7\xf8&\x95q\x08\xf4\xa3\x0f\xd9\xce\xc3\xae\xbay\x97 \x84\xe9\x0e\xad\x01\xea3\t\x00\x00\x00\x00'
}
}))
self.assertEqual(('init', {
'gflen': 2,
'globalfeatures': b'"\x00',
'flen': 3,
'features': b'\x02\xa2\xa1',
'init_tlvs': {}
}), decode_msg(bfh("001000022200000302a2a1")))
self.assertEqual(
('init', {
'gflen': 2,
'globalfeatures': b'"\x00',
'flen': 3,
'features': b'\x02\xaa\xa2',
'init_tlvs': {
'networks': {
'chains':
b'CI\x7f\xd7\xf8&\x95q\x08\xf4\xa3\x0f\xd9\xce\xc3\xae\xbay\x97 \x84\xe9\x0e\xad\x01\xea3\t\x00\x00\x00\x00'
}
}
}),
decode_msg(
bfh("001000022200000302aaa2012043497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000"
)))
def test_encode_decode_msg__commitment_signed(self):
# "commitment_signed" is interesting because of the "htlc_signature" field,
# which is a concatenation of multiple ("num_htlcs") signatures.
# 5 htlcs
self.assertEqual(bfh("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"),
encode_msg(
"commitment_signed",
channel_id=b'\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01',
signature=b"\x06\x11)Q\xd0\xa6\xd7\xfc\x1d\xbc\xa3\xbd\x1c\xdb\xda\x9a\xcf\xee\x7ff\x8b<\n6\xbd\x94O~/0['K\xa4ja'\x9e\x15\x16;-7lfK\xb3H\x1d|^\x10z[&\x83\x01\xe3\x9a\xeb\xbd\xa2}-",
num_htlcs=5,
htlc_signature=bfh("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"),
))
self.assertEqual(('commitment_signed',
{'channel_id': b'\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01',
'signature': b"\x06\x11)Q\xd0\xa6\xd7\xfc\x1d\xbc\xa3\xbd\x1c\xdb\xda\x9a\xcf\xee\x7ff\x8b<\n6\xbd\x94O~/0['K\xa4ja'\x9e\x15\x16;-7lfK\xb3H\x1d|^\x10z[&\x83\x01\xe3\x9a\xeb\xbd\xa2}-",
'num_htlcs': 5,
'htlc_signature': bfh("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")}
),
decode_msg(bfh("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")))
# single htlc
self.assertEqual(bfh("008401010101010101010101010101010101010101010101010101010101010101013b14af0c549dfb1fb287ff57c012371b3932996db5929eda5f251704751fb49d0dc2dcb88e5021575cb572fb71693758543f97d89e9165f913bfb7488d7cc26500012d31103b9f6e71131e4fee86fdfbdeba90e52b43fcfd11e8e53811cd4d59b2575ae6c3c82f85bea144c88cc35e568f1e6bdd0c57337e86de0b5da7cd9994067a"),
encode_msg(
"commitment_signed",
channel_id=b'\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01',
signature=b';\x14\xaf\x0cT\x9d\xfb\x1f\xb2\x87\xffW\xc0\x127\x1b92\x99m\xb5\x92\x9e\xda_%\x17\x04u\x1f\xb4\x9d\r\xc2\xdc\xb8\x8eP!W\\\xb5r\xfbqi7XT?\x97\xd8\x9e\x91e\xf9\x13\xbf\xb7H\x8d|\xc2e',
num_htlcs=1,
htlc_signature=bfh("2d31103b9f6e71131e4fee86fdfbdeba90e52b43fcfd11e8e53811cd4d59b2575ae6c3c82f85bea144c88cc35e568f1e6bdd0c57337e86de0b5da7cd9994067a"),
))
self.assertEqual(('commitment_signed',
{'channel_id': b'\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01',
'signature': b';\x14\xaf\x0cT\x9d\xfb\x1f\xb2\x87\xffW\xc0\x127\x1b92\x99m\xb5\x92\x9e\xda_%\x17\x04u\x1f\xb4\x9d\r\xc2\xdc\xb8\x8eP!W\\\xb5r\xfbqi7XT?\x97\xd8\x9e\x91e\xf9\x13\xbf\xb7H\x8d|\xc2e',
'num_htlcs': 1,
'htlc_signature': bfh("2d31103b9f6e71131e4fee86fdfbdeba90e52b43fcfd11e8e53811cd4d59b2575ae6c3c82f85bea144c88cc35e568f1e6bdd0c57337e86de0b5da7cd9994067a")}
),
decode_msg(bfh("008401010101010101010101010101010101010101010101010101010101010101013b14af0c549dfb1fb287ff57c012371b3932996db5929eda5f251704751fb49d0dc2dcb88e5021575cb572fb71693758543f97d89e9165f913bfb7488d7cc26500012d31103b9f6e71131e4fee86fdfbdeba90e52b43fcfd11e8e53811cd4d59b2575ae6c3c82f85bea144c88cc35e568f1e6bdd0c57337e86de0b5da7cd9994067a")))
# zero htlcs
self.assertEqual(bfh("008401010101010101010101010101010101010101010101010101010101010101014e206ecf904d9237b1c5b4e08513555e9a5932c45b5f68be8764ce998df635ae04f6ce7bbcd3b4fd08e2daab7f9059b287ecab4155367b834682633497173f450000"),
encode_msg(
"commitment_signed",
channel_id=b'\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01',
signature=b'N n\xcf\x90M\x927\xb1\xc5\xb4\xe0\x85\x13U^\x9aY2\xc4[_h\xbe\x87d\xce\x99\x8d\xf65\xae\x04\xf6\xce{\xbc\xd3\xb4\xfd\x08\xe2\xda\xab\x7f\x90Y\xb2\x87\xec\xabAU6{\x83F\x82c4\x97\x17?E',
num_htlcs=0,
htlc_signature=bfh(""),
))
self.assertEqual(('commitment_signed',
{'channel_id': b'\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01',
'signature': b'N n\xcf\x90M\x927\xb1\xc5\xb4\xe0\x85\x13U^\x9aY2\xc4[_h\xbe\x87d\xce\x99\x8d\xf65\xae\x04\xf6\xce{\xbc\xd3\xb4\xfd\x08\xe2\xda\xab\x7f\x90Y\xb2\x87\xec\xabAU6{\x83F\x82c4\x97\x17?E',
'num_htlcs': 0,
'htlc_signature': bfh("")}
),
decode_msg(bfh("008401010101010101010101010101010101010101010101010101010101010101014e206ecf904d9237b1c5b4e08513555e9a5932c45b5f68be8764ce998df635ae04f6ce7bbcd3b4fd08e2daab7f9059b287ecab4155367b834682633497173f450000")))
def test_encode_decode_msg__ints_can_be_passed_as_bytes(self):
self.assertEqual(
bfh("01020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000043497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea33090000000000d43100006f00025e6ed0830100009000000000000000c8000001f400000023000000003b9aca00"
),
encode_msg(
"channel_update",
short_channel_id=ShortChannelID.from_components(54321, 111, 2),
channel_flags=b'\x00',
message_flags=b'\x01',
cltv_expiry_delta=int.to_bytes(144,
length=2,
byteorder="big",
signed=False),
htlc_minimum_msat=int.to_bytes(200,
length=8,
byteorder="big",
signed=False),
htlc_maximum_msat=int.to_bytes(1_000_000_000,
length=8,
byteorder="big",
signed=False),
fee_base_msat=int.to_bytes(500,
length=4,
byteorder="big",
signed=False),
fee_proportional_millionths=int.to_bytes(35,
length=4,
byteorder="big",
signed=False),
chain_hash=constants.net.rev_genesis_bytes(),
timestamp=int.to_bytes(1584320643,
length=4,
byteorder="big",
signed=False),
))
def test_encode_decode_msg__missing_optional_field_will_not_appear_in_decoded_dict(
self):
# "channel_update": optional field "htlc_maximum_msat" missing -> does not get put into dict
self.assertEqual(
bfh("01020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000043497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea33090000000000d43100006f00025e6ed0830100009000000000000000c8000001f400000023"
),
encode_msg(
"channel_update",
short_channel_id=ShortChannelID.from_components(54321, 111, 2),
channel_flags=b'\x00',
message_flags=b'\x01',
cltv_expiry_delta=144,
htlc_minimum_msat=200,
fee_base_msat=500,
fee_proportional_millionths=35,
chain_hash=constants.net.rev_genesis_bytes(),
timestamp=1584320643,
))
self.assertEqual(
('channel_update', {
'chain_hash':
b'CI\x7f\xd7\xf8&\x95q\x08\xf4\xa3\x0f\xd9\xce\xc3\xae\xbay\x97 \x84\xe9\x0e\xad\x01\xea3\t\x00\x00\x00\x00',
'channel_flags': b'\x00',
'cltv_expiry_delta': 144,
'fee_base_msat': 500,
'fee_proportional_millionths': 35,
'htlc_minimum_msat': 200,
'message_flags': b'\x01',
'short_channel_id': b'\x00\xd41\x00\x00o\x00\x02',
'signature': bytes(64),
'timestamp': 1584320643
}),
decode_msg(
bfh("01020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000043497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea33090000000000d43100006f00025e6ed0830100009000000000000000c8000001f400000023"
)))
def send_bytes(self, data):
decoded = decode_msg(data)
print(decoded)
if decoded[0] == 'init':
self.queue.put_nowait(
encode_msg('init',
lflen=1,
gflen=1,
localfeatures=b"\x00",
globalfeatures=b"\x00"))
def test_encode_decode_msg__missing_mandatory_field_gets_set_to_zeroes(self):
# "channel_update": "signature" missing -> gets set to zeroes
self.assertEqual(bfh(frombtc("01020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000043497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea33090000000000d43100006f00025e6ed0830100009000000000000000c8000001f400000023000000003b9aca00")),
encode_msg(
"channel_update",
short_channel_id=ShortChannelID.from_components(54321, 111, 2),
channel_flags=b'\x00',
message_flags=b'\x01',
cltv_expiry_delta=144,
htlc_minimum_msat=200,
htlc_maximum_msat=1_000_000_000,
fee_base_msat=500,
fee_proportional_millionths=35,
chain_hash=constants.net.rev_genesis_bytes(),
timestamp=1584320643,
))
'short_channel_id': b'\x00\xd41\x00\x00o\x00\x02',
'signature': bytes(64),
'timestamp': 1584320643
}),
decode_msg(
bfh("01020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000043497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea33090000000000d43100006f00025e6ed0830100009000000000000000c8000001f400000023000000003b9aca00"
)))
# "htlc_minimum_msat" is passed as bytes but with incorrect length
with self.assertRaises(UnexpectedFieldSizeForEncoder):
encode_msg(
"channel_update",
short_channel_id=ShortChannelID.from_components(54321, 111, 2),
channel_flags=b'\x00',
message_flags=b'\x01',
cltv_expiry_delta=int.to_bytes(144,
length=2,
byteorder="big",
signed=False),
htlc_minimum_msat=int.to_bytes(200,
length=4,
byteorder="big",
signed=False),
htlc_maximum_msat=int.to_bytes(1_000_000_000,
length=8,
byteorder="big",
signed=False),
fee_base_msat=int.to_bytes(500,
length=4,
byteorder="big",
signed=False),
fee_proportional_millionths=int.to_bytes(35,
length=4,