ttest_lnmsg.py - electrum - Electrum Bitcoin wallet
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---
ttest_lnmsg.py (32845B)
---
1 import io
2
3 from electrum.lnmsg import (read_bigsize_int, write_bigsize_int, FieldEncodingNotMinimal,
4 UnexpectedEndOfStream, LNSerializer, UnknownMandatoryTLVRecordType,
5 MalformedMsg, MsgTrailingGarbage, MsgInvalidFieldOrder, encode_msg,
6 decode_msg, UnexpectedFieldSizeForEncoder)
7 from electrum.util import bfh
8 from electrum.lnutil import ShortChannelID, LnFeatures
9 from electrum import constants
10
11 from . import TestCaseForTestnet
12
13
14 class TestLNMsg(TestCaseForTestnet):
15
16 def test_write_bigsize_int(self):
17 self.assertEqual(bfh("00"), write_bigsize_int(0))
18 self.assertEqual(bfh("fc"), write_bigsize_int(252))
19 self.assertEqual(bfh("fd00fd"), write_bigsize_int(253))
20 self.assertEqual(bfh("fdffff"), write_bigsize_int(65535))
21 self.assertEqual(bfh("fe00010000"), write_bigsize_int(65536))
22 self.assertEqual(bfh("feffffffff"), write_bigsize_int(4294967295))
23 self.assertEqual(bfh("ff0000000100000000"), write_bigsize_int(4294967296))
24 self.assertEqual(bfh("ffffffffffffffffff"), write_bigsize_int(18446744073709551615))
25
26 def test_read_bigsize_int(self):
27 self.assertEqual(0, read_bigsize_int(io.BytesIO(bfh("00"))))
28 self.assertEqual(252, read_bigsize_int(io.BytesIO(bfh("fc"))))
29 self.assertEqual(253, read_bigsize_int(io.BytesIO(bfh("fd00fd"))))
30 self.assertEqual(65535, read_bigsize_int(io.BytesIO(bfh("fdffff"))))
31 self.assertEqual(65536, read_bigsize_int(io.BytesIO(bfh("fe00010000"))))
32 self.assertEqual(4294967295, read_bigsize_int(io.BytesIO(bfh("feffffffff"))))
33 self.assertEqual(4294967296, read_bigsize_int(io.BytesIO(bfh("ff0000000100000000"))))
34 self.assertEqual(18446744073709551615, read_bigsize_int(io.BytesIO(bfh("ffffffffffffffffff"))))
35
36 with self.assertRaises(FieldEncodingNotMinimal):
37 read_bigsize_int(io.BytesIO(bfh("fd00fc")))
38 with self.assertRaises(FieldEncodingNotMinimal):
39 read_bigsize_int(io.BytesIO(bfh("fe0000ffff")))
40 with self.assertRaises(FieldEncodingNotMinimal):
41 read_bigsize_int(io.BytesIO(bfh("ff00000000ffffffff")))
42 with self.assertRaises(UnexpectedEndOfStream):
43 read_bigsize_int(io.BytesIO(bfh("fd00")))
44 with self.assertRaises(UnexpectedEndOfStream):
45 read_bigsize_int(io.BytesIO(bfh("feffff")))
46 with self.assertRaises(UnexpectedEndOfStream):
47 read_bigsize_int(io.BytesIO(bfh("ffffffffff")))
48 self.assertEqual(None, read_bigsize_int(io.BytesIO(bfh(""))))
49 with self.assertRaises(UnexpectedEndOfStream):
50 read_bigsize_int(io.BytesIO(bfh("fd")))
51 with self.assertRaises(UnexpectedEndOfStream):
52 read_bigsize_int(io.BytesIO(bfh("fe")))
53 with self.assertRaises(UnexpectedEndOfStream):
54 read_bigsize_int(io.BytesIO(bfh("ff")))
55
56 def test_read_tlv_stream_tests1(self):
57 # from https://github.com/lightningnetwork/lightning-rfc/blob/452a0eb916fedf4c954137b4fd0b61b5002b34ad/01-messaging.md#tlv-decoding-failures
58 lnser = LNSerializer()
59 for tlv_stream_name in ("n1", "n2"):
60 with self.subTest(tlv_stream_name=tlv_stream_name):
61 with self.assertRaises(UnexpectedEndOfStream):
62 lnser.read_tlv_stream(fd=io.BytesIO(bfh("fd")), tlv_stream_name=tlv_stream_name)
63 with self.assertRaises(UnexpectedEndOfStream):
64 lnser.read_tlv_stream(fd=io.BytesIO(bfh("fd01")), tlv_stream_name=tlv_stream_name)
65 with self.assertRaises(FieldEncodingNotMinimal):
66 lnser.read_tlv_stream(fd=io.BytesIO(bfh("fd000100")), tlv_stream_name=tlv_stream_name)
67 with self.assertRaises(UnexpectedEndOfStream):
68 lnser.read_tlv_stream(fd=io.BytesIO(bfh("fd0101")), tlv_stream_name=tlv_stream_name)
69 with self.assertRaises(UnexpectedEndOfStream):
70 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0ffd")), tlv_stream_name=tlv_stream_name)
71 with self.assertRaises(UnexpectedEndOfStream):
72 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0ffd26")), tlv_stream_name=tlv_stream_name)
73 with self.assertRaises(UnexpectedEndOfStream):
74 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0ffd2602")), tlv_stream_name=tlv_stream_name)
75 with self.assertRaises(FieldEncodingNotMinimal):
76 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0ffd000100")), tlv_stream_name=tlv_stream_name)
77 with self.assertRaises(UnexpectedEndOfStream):
78 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0ffd0201000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000")), tlv_stream_name="n1")
79 with self.assertRaises(UnknownMandatoryTLVRecordType):
80 lnser.read_tlv_stream(fd=io.BytesIO(bfh("1200")), tlv_stream_name=tlv_stream_name)
81 with self.assertRaises(UnknownMandatoryTLVRecordType):
82 lnser.read_tlv_stream(fd=io.BytesIO(bfh("fd010200")), tlv_stream_name=tlv_stream_name)
83 with self.assertRaises(UnknownMandatoryTLVRecordType):
84 lnser.read_tlv_stream(fd=io.BytesIO(bfh("fe0100000200")), tlv_stream_name=tlv_stream_name)
85 with self.assertRaises(UnknownMandatoryTLVRecordType):
86 lnser.read_tlv_stream(fd=io.BytesIO(bfh("ff010000000000000200")), tlv_stream_name=tlv_stream_name)
87 with self.assertRaises(MsgTrailingGarbage):
88 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0109ffffffffffffffffff")), tlv_stream_name="n1")
89 with self.assertRaises(FieldEncodingNotMinimal):
90 lnser.read_tlv_stream(fd=io.BytesIO(bfh("010100")), tlv_stream_name="n1")
91 with self.assertRaises(FieldEncodingNotMinimal):
92 lnser.read_tlv_stream(fd=io.BytesIO(bfh("01020001")), tlv_stream_name="n1")
93 with self.assertRaises(FieldEncodingNotMinimal):
94 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0103000100")), tlv_stream_name="n1")
95 with self.assertRaises(FieldEncodingNotMinimal):
96 lnser.read_tlv_stream(fd=io.BytesIO(bfh("010400010000")), tlv_stream_name="n1")
97 with self.assertRaises(FieldEncodingNotMinimal):
98 lnser.read_tlv_stream(fd=io.BytesIO(bfh("01050001000000")), tlv_stream_name="n1")
99 with self.assertRaises(FieldEncodingNotMinimal):
100 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0106000100000000")), tlv_stream_name="n1")
101 with self.assertRaises(FieldEncodingNotMinimal):
102 lnser.read_tlv_stream(fd=io.BytesIO(bfh("010700010000000000")), tlv_stream_name="n1")
103 with self.assertRaises(FieldEncodingNotMinimal):
104 lnser.read_tlv_stream(fd=io.BytesIO(bfh("01080001000000000000")), tlv_stream_name="n1")
105 with self.assertRaises(UnexpectedEndOfStream):
106 lnser.read_tlv_stream(fd=io.BytesIO(bfh("020701010101010101")), tlv_stream_name="n1")
107 with self.assertRaises(MsgTrailingGarbage):
108 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0209010101010101010101")), tlv_stream_name="n1")
109 with self.assertRaises(UnexpectedEndOfStream):
110 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0321023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb")), tlv_stream_name="n1")
111 with self.assertRaises(UnexpectedEndOfStream):
112 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0329023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb0000000000000001")), tlv_stream_name="n1")
113 with self.assertRaises(UnexpectedEndOfStream):
114 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0330023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb000000000000000100000000000001")), tlv_stream_name="n1")
115 # check if ECC point is valid?... skip for now.
116 #with self.assertRaises(Exception):
117 # lnser.read_tlv_stream(fd=io.BytesIO(bfh("0331043da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb00000000000000010000000000000002")), tlv_stream_name="n1")
118 with self.assertRaises(MsgTrailingGarbage):
119 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0332023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb0000000000000001000000000000000001")), tlv_stream_name="n1")
120 with self.assertRaises(UnexpectedEndOfStream):
121 lnser.read_tlv_stream(fd=io.BytesIO(bfh("fd00fe00")), tlv_stream_name="n1")
122 with self.assertRaises(UnexpectedEndOfStream):
123 lnser.read_tlv_stream(fd=io.BytesIO(bfh("fd00fe0101")), tlv_stream_name="n1")
124 with self.assertRaises(MsgTrailingGarbage):
125 lnser.read_tlv_stream(fd=io.BytesIO(bfh("fd00fe03010101")), tlv_stream_name="n1")
126 with self.assertRaises(UnknownMandatoryTLVRecordType):
127 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0000")), tlv_stream_name="n1")
128
129 def test_read_tlv_stream_tests2(self):
130 # from https://github.com/lightningnetwork/lightning-rfc/blob/452a0eb916fedf4c954137b4fd0b61b5002b34ad/01-messaging.md#tlv-decoding-successes
131 lnser = LNSerializer()
132 for tlv_stream_name in ("n1", "n2"):
133 with self.subTest(tlv_stream_name=tlv_stream_name):
134 self.assertEqual({}, lnser.read_tlv_stream(fd=io.BytesIO(bfh("")), tlv_stream_name=tlv_stream_name))
135 self.assertEqual({}, lnser.read_tlv_stream(fd=io.BytesIO(bfh("2100")), tlv_stream_name=tlv_stream_name))
136 self.assertEqual({}, lnser.read_tlv_stream(fd=io.BytesIO(bfh("fd020100")), tlv_stream_name=tlv_stream_name))
137 self.assertEqual({}, lnser.read_tlv_stream(fd=io.BytesIO(bfh("fd00fd00")), tlv_stream_name=tlv_stream_name))
138 self.assertEqual({}, lnser.read_tlv_stream(fd=io.BytesIO(bfh("fd00ff00")), tlv_stream_name=tlv_stream_name))
139 self.assertEqual({}, lnser.read_tlv_stream(fd=io.BytesIO(bfh("fe0200000100")), tlv_stream_name=tlv_stream_name))
140 self.assertEqual({}, lnser.read_tlv_stream(fd=io.BytesIO(bfh("ff020000000000000100")), tlv_stream_name=tlv_stream_name))
141
142 self.assertEqual({"tlv1": {"amount_msat": 0}},
143 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0100")), tlv_stream_name="n1"))
144 self.assertEqual({"tlv1": {"amount_msat": 1}},
145 lnser.read_tlv_stream(fd=io.BytesIO(bfh("010101")), tlv_stream_name="n1"))
146 self.assertEqual({"tlv1": {"amount_msat": 256}},
147 lnser.read_tlv_stream(fd=io.BytesIO(bfh("01020100")), tlv_stream_name="n1"))
148 self.assertEqual({"tlv1": {"amount_msat": 65536}},
149 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0103010000")), tlv_stream_name="n1"))
150 self.assertEqual({"tlv1": {"amount_msat": 16777216}},
151 lnser.read_tlv_stream(fd=io.BytesIO(bfh("010401000000")), tlv_stream_name="n1"))
152 self.assertEqual({"tlv1": {"amount_msat": 4294967296}},
153 lnser.read_tlv_stream(fd=io.BytesIO(bfh("01050100000000")), tlv_stream_name="n1"))
154 self.assertEqual({"tlv1": {"amount_msat": 1099511627776}},
155 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0106010000000000")), tlv_stream_name="n1"))
156 self.assertEqual({"tlv1": {"amount_msat": 281474976710656}},
157 lnser.read_tlv_stream(fd=io.BytesIO(bfh("010701000000000000")), tlv_stream_name="n1"))
158 self.assertEqual({"tlv1": {"amount_msat": 72057594037927936}},
159 lnser.read_tlv_stream(fd=io.BytesIO(bfh("01080100000000000000")), tlv_stream_name="n1"))
160 self.assertEqual({"tlv2": {"scid": ShortChannelID.from_components(0, 0, 550)}},
161 lnser.read_tlv_stream(fd=io.BytesIO(bfh("02080000000000000226")), tlv_stream_name="n1"))
162 self.assertEqual({"tlv3": {"node_id": bfh("023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb"),
163 "amount_msat_1": 1,
164 "amount_msat_2": 2}},
165 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0331023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb00000000000000010000000000000002")), tlv_stream_name="n1"))
166 self.assertEqual({"tlv4": {"cltv_delta": 550}},
167 lnser.read_tlv_stream(fd=io.BytesIO(bfh("fd00fe020226")), tlv_stream_name="n1"))
168
169 def test_read_tlv_stream_tests3(self):
170 # from https://github.com/lightningnetwork/lightning-rfc/blob/452a0eb916fedf4c954137b4fd0b61b5002b34ad/01-messaging.md#tlv-stream-decoding-failure
171 lnser = LNSerializer()
172 with self.assertRaises(MsgInvalidFieldOrder):
173 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0208000000000000022601012a")), tlv_stream_name="n1")
174 with self.assertRaises(MsgInvalidFieldOrder):
175 lnser.read_tlv_stream(fd=io.BytesIO(bfh("0208000000000000023102080000000000000451")), tlv_stream_name="n1")
176 with self.assertRaises(MsgInvalidFieldOrder):
177 lnser.read_tlv_stream(fd=io.BytesIO(bfh("1f000f012a")), tlv_stream_name="n1")
178 with self.assertRaises(MsgInvalidFieldOrder):
179 lnser.read_tlv_stream(fd=io.BytesIO(bfh("1f001f012a")), tlv_stream_name="n1")
180 with self.assertRaises(MsgInvalidFieldOrder):
181 lnser.read_tlv_stream(fd=io.BytesIO(bfh("ffffffffffffffffff000000")), tlv_stream_name="n2")
182
183 def test_encode_decode_msg__missing_mandatory_field_gets_set_to_zeroes(self):
184 # "channel_update": "signature" missing -> gets set to zeroes
185 self.assertEqual(bfh("01020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000043497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea33090000000000d43100006f00025e6ed0830100009000000000000000c8000001f400000023000000003b9aca00"),
186 encode_msg(
187 "channel_update",
188 short_channel_id=ShortChannelID.from_components(54321, 111, 2),
189 channel_flags=b'\x00',
190 message_flags=b'\x01',
191 cltv_expiry_delta=144,
192 htlc_minimum_msat=200,
193 htlc_maximum_msat=1_000_000_000,
194 fee_base_msat=500,
195 fee_proportional_millionths=35,
196 chain_hash=constants.net.rev_genesis_bytes(),
197 timestamp=1584320643,
198 ))
199 self.assertEqual(('channel_update',
200 {'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',
201 'channel_flags': b'\x00',
202 'cltv_expiry_delta': 144,
203 'fee_base_msat': 500,
204 'fee_proportional_millionths': 35,
205 'htlc_maximum_msat': 1000000000,
206 'htlc_minimum_msat': 200,
207 'message_flags': b'\x01',
208 'short_channel_id': b'\x00\xd41\x00\x00o\x00\x02',
209 'signature': bytes(64),
210 'timestamp': 1584320643}
211 ),
212 decode_msg(bfh("01020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000043497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea33090000000000d43100006f00025e6ed0830100009000000000000000c8000001f400000023000000003b9aca00")))
213
214 def test_encode_decode_msg__missing_optional_field_will_not_appear_in_decoded_dict(self):
215 # "channel_update": optional field "htlc_maximum_msat" missing -> does not get put into dict
216 self.assertEqual(bfh("01020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000043497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea33090000000000d43100006f00025e6ed0830100009000000000000000c8000001f400000023"),
217 encode_msg(
218 "channel_update",
219 short_channel_id=ShortChannelID.from_components(54321, 111, 2),
220 channel_flags=b'\x00',
221 message_flags=b'\x01',
222 cltv_expiry_delta=144,
223 htlc_minimum_msat=200,
224 fee_base_msat=500,
225 fee_proportional_millionths=35,
226 chain_hash=constants.net.rev_genesis_bytes(),
227 timestamp=1584320643,
228 ))
229 self.assertEqual(('channel_update',
230 {'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',
231 'channel_flags': b'\x00',
232 'cltv_expiry_delta': 144,
233 'fee_base_msat': 500,
234 'fee_proportional_millionths': 35,
235 'htlc_minimum_msat': 200,
236 'message_flags': b'\x01',
237 'short_channel_id': b'\x00\xd41\x00\x00o\x00\x02',
238 'signature': bytes(64),
239 'timestamp': 1584320643}
240 ),
241 decode_msg(bfh("01020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000043497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea33090000000000d43100006f00025e6ed0830100009000000000000000c8000001f400000023")))
242
243 def test_encode_decode_msg__ints_can_be_passed_as_bytes(self):
244 self.assertEqual(bfh("01020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000043497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea33090000000000d43100006f00025e6ed0830100009000000000000000c8000001f400000023000000003b9aca00"),
245 encode_msg(
246 "channel_update",
247 short_channel_id=ShortChannelID.from_components(54321, 111, 2),
248 channel_flags=b'\x00',
249 message_flags=b'\x01',
250 cltv_expiry_delta=int.to_bytes(144, length=2, byteorder="big", signed=False),
251 htlc_minimum_msat=int.to_bytes(200, length=8, byteorder="big", signed=False),
252 htlc_maximum_msat=int.to_bytes(1_000_000_000, length=8, byteorder="big", signed=False),
253 fee_base_msat=int.to_bytes(500, length=4, byteorder="big", signed=False),
254 fee_proportional_millionths=int.to_bytes(35, length=4, byteorder="big", signed=False),
255 chain_hash=constants.net.rev_genesis_bytes(),
256 timestamp=int.to_bytes(1584320643, length=4, byteorder="big", signed=False),
257 ))
258 self.assertEqual(('channel_update',
259 {'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',
260 'channel_flags': b'\x00',
261 'cltv_expiry_delta': 144,
262 'fee_base_msat': 500,
263 'fee_proportional_millionths': 35,
264 'htlc_maximum_msat': 1000000000,
265 'htlc_minimum_msat': 200,
266 'message_flags': b'\x01',
267 'short_channel_id': b'\x00\xd41\x00\x00o\x00\x02',
268 'signature': bytes(64),
269 'timestamp': 1584320643}
270 ),
271 decode_msg(bfh("01020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000043497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea33090000000000d43100006f00025e6ed0830100009000000000000000c8000001f400000023000000003b9aca00")))
272 # "htlc_minimum_msat" is passed as bytes but with incorrect length
273 with self.assertRaises(UnexpectedFieldSizeForEncoder):
274 encode_msg(
275 "channel_update",
276 short_channel_id=ShortChannelID.from_components(54321, 111, 2),
277 channel_flags=b'\x00',
278 message_flags=b'\x01',
279 cltv_expiry_delta=int.to_bytes(144, length=2, byteorder="big", signed=False),
280 htlc_minimum_msat=int.to_bytes(200, length=4, byteorder="big", signed=False),
281 htlc_maximum_msat=int.to_bytes(1_000_000_000, length=8, byteorder="big", signed=False),
282 fee_base_msat=int.to_bytes(500, length=4, byteorder="big", signed=False),
283 fee_proportional_millionths=int.to_bytes(35, length=4, byteorder="big", signed=False),
284 chain_hash=constants.net.rev_genesis_bytes(),
285 timestamp=int.to_bytes(1584320643, length=4, byteorder="big", signed=False),
286 )
287
288 def test_encode_decode_msg__commitment_signed(self):
289 # "commitment_signed" is interesting because of the "htlc_signature" field,
290 # which is a concatenation of multiple ("num_htlcs") signatures.
291 # 5 htlcs
292 self.assertEqual(bfh("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"),
293 encode_msg(
294 "commitment_signed",
295 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',
296 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}-",
297 num_htlcs=5,
298 htlc_signature=bfh("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"),
299 ))
300 self.assertEqual(('commitment_signed',
301 {'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',
302 '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}-",
303 'num_htlcs': 5,
304 'htlc_signature': bfh("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")}
305 ),
306 decode_msg(bfh("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")))
307 # single htlc
308 self.assertEqual(bfh("008401010101010101010101010101010101010101010101010101010101010101013b14af0c549dfb1fb287ff57c012371b3932996db5929eda5f251704751fb49d0dc2dcb88e5021575cb572fb71693758543f97d89e9165f913bfb7488d7cc26500012d31103b9f6e71131e4fee86fdfbdeba90e52b43fcfd11e8e53811cd4d59b2575ae6c3c82f85bea144c88cc35e568f1e6bdd0c57337e86de0b5da7cd9994067a"),
309 encode_msg(
310 "commitment_signed",
311 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',
312 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',
313 num_htlcs=1,
314 htlc_signature=bfh("2d31103b9f6e71131e4fee86fdfbdeba90e52b43fcfd11e8e53811cd4d59b2575ae6c3c82f85bea144c88cc35e568f1e6bdd0c57337e86de0b5da7cd9994067a"),
315 ))
316 self.assertEqual(('commitment_signed',
317 {'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',
318 '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',
319 'num_htlcs': 1,
320 'htlc_signature': bfh("2d31103b9f6e71131e4fee86fdfbdeba90e52b43fcfd11e8e53811cd4d59b2575ae6c3c82f85bea144c88cc35e568f1e6bdd0c57337e86de0b5da7cd9994067a")}
321 ),
322 decode_msg(bfh("008401010101010101010101010101010101010101010101010101010101010101013b14af0c549dfb1fb287ff57c012371b3932996db5929eda5f251704751fb49d0dc2dcb88e5021575cb572fb71693758543f97d89e9165f913bfb7488d7cc26500012d31103b9f6e71131e4fee86fdfbdeba90e52b43fcfd11e8e53811cd4d59b2575ae6c3c82f85bea144c88cc35e568f1e6bdd0c57337e86de0b5da7cd9994067a")))
323 # zero htlcs
324 self.assertEqual(bfh("008401010101010101010101010101010101010101010101010101010101010101014e206ecf904d9237b1c5b4e08513555e9a5932c45b5f68be8764ce998df635ae04f6ce7bbcd3b4fd08e2daab7f9059b287ecab4155367b834682633497173f450000"),
325 encode_msg(
326 "commitment_signed",
327 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',
328 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',
329 num_htlcs=0,
330 htlc_signature=bfh(""),
331 ))
332 self.assertEqual(('commitment_signed',
333 {'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',
334 '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',
335 'num_htlcs': 0,
336 'htlc_signature': bfh("")}
337 ),
338 decode_msg(bfh("008401010101010101010101010101010101010101010101010101010101010101014e206ecf904d9237b1c5b4e08513555e9a5932c45b5f68be8764ce998df635ae04f6ce7bbcd3b4fd08e2daab7f9059b287ecab4155367b834682633497173f450000")))
339
340 def test_encode_decode_msg__init(self):
341 # "init" is interesting because it has TLVs optionally
342 self.assertEqual(bfh("00100000000220c2"),
343 encode_msg(
344 "init",
345 gflen=0,
346 flen=2,
347 features=(LnFeatures.OPTION_STATIC_REMOTEKEY_OPT |
348 LnFeatures.GOSSIP_QUERIES_OPT |
349 LnFeatures.GOSSIP_QUERIES_REQ |
350 LnFeatures.OPTION_DATA_LOSS_PROTECT_OPT),
351 ))
352 self.assertEqual(bfh("00100000000220c2"),
353 encode_msg("init", gflen=0, flen=2, features=bfh("20c2")))
354 self.assertEqual(bfh("00100000000220c2012043497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000"),
355 encode_msg(
356 "init",
357 gflen=0,
358 flen=2,
359 features=(LnFeatures.OPTION_STATIC_REMOTEKEY_OPT |
360 LnFeatures.GOSSIP_QUERIES_OPT |
361 LnFeatures.GOSSIP_QUERIES_REQ |
362 LnFeatures.OPTION_DATA_LOSS_PROTECT_OPT),
363 init_tlvs={
364 'networks':
365 {'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'}
366 }
367 ))
368 self.assertEqual(('init',
369 {'gflen': 2,
370 'globalfeatures': b'"\x00',
371 'flen': 3,
372 'features': b'\x02\xa2\xa1',
373 'init_tlvs': {}}
374 ),
375 decode_msg(bfh("001000022200000302a2a1")))
376 self.assertEqual(('init',
377 {'gflen': 2,
378 'globalfeatures': b'"\x00',
379 'flen': 3,
380 'features': b'\x02\xaa\xa2',
381 'init_tlvs': {
382 'networks':
383 {'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'}
384 }}),
385 decode_msg(bfh("001000022200000302aaa2012043497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000")))