100 lines
4.2 KiB
Python
100 lines
4.2 KiB
Python
import asyncio
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from electrum import util
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from electrum.ecc import ECPrivkey
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from electrum.lnutil import LNPeerAddr
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from electrum.lntransport import LNResponderTransport, LNTransport
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from electrum.util import OldTaskGroup
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from . import ElectrumTestCase
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from .test_bitcoin import needs_test_with_all_chacha20_implementations
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class TestLNTransport(ElectrumTestCase):
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@needs_test_with_all_chacha20_implementations
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async def test_responder(self):
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# local static
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ls_priv=bytes.fromhex('2121212121212121212121212121212121212121212121212121212121212121')
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# ephemeral
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e_priv=bytes.fromhex('2222222222222222222222222222222222222222222222222222222222222222')
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class Writer:
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def __init__(self):
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self.state = 0
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def write(self, data):
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assert self.state == 0
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self.state += 1
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assert len(data) == 50
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class Reader:
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def __init__(self):
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self.state = 0
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async def read(self, num_bytes):
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assert self.state in (0, 1)
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self.state += 1
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if self.state-1 == 0:
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assert num_bytes == 50
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return bytes.fromhex('00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a')
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elif self.state-1 == 1:
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assert num_bytes == 66
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return bytes.fromhex('00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba')
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transport = LNResponderTransport(ls_priv, Reader(), Writer())
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await transport.handshake(epriv=e_priv)
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@needs_test_with_all_chacha20_implementations
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async def test_loop(self):
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responder_shaked = asyncio.Event()
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server_shaked = asyncio.Event()
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responder_key = ECPrivkey.generate_random_key()
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initiator_key = ECPrivkey.generate_random_key()
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messages_sent_by_client = [
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b'hello from client',
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b'long data from client ' + bytes(range(256)) * 100 + b'... client done',
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b'client is running out of things to say',
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]
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messages_sent_by_server = [
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b'hello from server',
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b'hello2 from server',
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b'long data from server ' + bytes(range(256)) * 100 + b'... server done',
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]
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async def read_messages(transport, expected_messages):
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ctr = 0
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async for msg in transport.read_messages():
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self.assertEqual(expected_messages[ctr], msg)
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ctr += 1
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if ctr == len(expected_messages):
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return
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async def write_messages(transport, expected_messages):
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for msg in expected_messages:
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transport.send_bytes(msg)
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await asyncio.sleep(0.01)
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async def cb(reader, writer):
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t = LNResponderTransport(responder_key.get_secret_bytes(), reader, writer)
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self.assertEqual(await t.handshake(), initiator_key.get_public_key_bytes())
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async with OldTaskGroup() as group:
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await group.spawn(read_messages(t, messages_sent_by_client))
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await group.spawn(write_messages(t, messages_sent_by_server))
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responder_shaked.set()
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async def connect(port: int):
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peer_addr = LNPeerAddr('127.0.0.1', port, responder_key.get_public_key_bytes())
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t = LNTransport(initiator_key.get_secret_bytes(), peer_addr, proxy=None)
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await t.handshake()
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async with OldTaskGroup() as group:
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await group.spawn(read_messages(t, messages_sent_by_server))
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await group.spawn(write_messages(t, messages_sent_by_client))
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server_shaked.set()
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async def f():
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server = await asyncio.start_server(cb, '127.0.0.1', port=None)
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server_port = server.sockets[0].getsockname()[1]
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try:
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async with OldTaskGroup() as group:
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await group.spawn(connect(port=server_port))
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await group.spawn(responder_shaked.wait())
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await group.spawn(server_shaked.wait())
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finally:
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server.close()
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await f()
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