750d8cfab5
We pass the private edges to lnrouter, and let it find routes end-to-end. Previously the edge_cost heuristics didn't apply to the private edges and we were just randomly picking one of the route hints and use that. So e.g. cheaper private edges were not preferred, but they are now. PathEdge now stores both start_node and end_node; not just end_node.
805 lines
34 KiB
Python
805 lines
34 KiB
Python
import asyncio
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import tempfile
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from decimal import Decimal
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import os
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from contextlib import contextmanager
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from collections import defaultdict
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import logging
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import concurrent
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from concurrent import futures
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import unittest
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from typing import Iterable, NamedTuple
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from aiorpcx import TaskGroup
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from electrum import bitcoin
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from electrum import constants
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from electrum.network import Network
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from electrum.ecc import ECPrivkey
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from electrum import simple_config, lnutil
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from electrum.lnaddr import lnencode, LnAddr, lndecode
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from electrum.bitcoin import COIN, sha256
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from electrum.util import bh2u, create_and_start_event_loop, NetworkRetryManager, bfh
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from electrum.lnpeer import Peer, UpfrontShutdownScriptViolation
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from electrum.lnutil import LNPeerAddr, Keypair, privkey_to_pubkey
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from electrum.lnutil import LightningPeerConnectionClosed, RemoteMisbehaving
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from electrum.lnutil import PaymentFailure, LnFeatures, HTLCOwner
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from electrum.lnchannel import ChannelState, PeerState, Channel
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from electrum.lnrouter import LNPathFinder, PathEdge, LNPathInconsistent
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from electrum.channel_db import ChannelDB
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from electrum.lnworker import LNWallet, NoPathFound
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from electrum.lnmsg import encode_msg, decode_msg
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from electrum.logging import console_stderr_handler, Logger
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from electrum.lnworker import PaymentInfo, RECEIVED, PR_UNPAID
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from electrum.lnonion import OnionFailureCode
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from electrum.lnutil import ChannelBlackList
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from .test_lnchannel import create_test_channels
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from .test_bitcoin import needs_test_with_all_chacha20_implementations
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from . import ElectrumTestCase
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def keypair():
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priv = ECPrivkey.generate_random_key().get_secret_bytes()
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k1 = Keypair(
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pubkey=privkey_to_pubkey(priv),
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privkey=priv)
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return k1
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@contextmanager
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def noop_lock():
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yield
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class MockNetwork:
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def __init__(self, tx_queue):
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self.callbacks = defaultdict(list)
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self.lnwatcher = None
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self.interface = None
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user_config = {}
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user_dir = tempfile.mkdtemp(prefix="electrum-lnpeer-test-")
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self.config = simple_config.SimpleConfig(user_config, read_user_dir_function=lambda: user_dir)
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self.asyncio_loop = asyncio.get_event_loop()
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self.channel_db = ChannelDB(self)
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self.channel_db.data_loaded.set()
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self.path_finder = LNPathFinder(self.channel_db)
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self.tx_queue = tx_queue
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self._blockchain = MockBlockchain()
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self.channel_blacklist = ChannelBlackList()
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@property
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def callback_lock(self):
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return noop_lock()
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def get_local_height(self):
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return 0
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def blockchain(self):
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return self._blockchain
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async def broadcast_transaction(self, tx):
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if self.tx_queue:
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await self.tx_queue.put(tx)
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async def try_broadcasting(self, tx, name):
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await self.broadcast_transaction(tx)
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class MockBlockchain:
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def height(self):
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return 0
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def is_tip_stale(self):
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return False
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class MockWallet:
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def set_label(self, x, y):
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pass
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def save_db(self):
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pass
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def add_transaction(self, tx):
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pass
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def is_lightning_backup(self):
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return False
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def is_mine(self, addr):
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return True
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class MockLNWallet(Logger, NetworkRetryManager[LNPeerAddr]):
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def __init__(self, *, local_keypair: Keypair, chans: Iterable['Channel'], tx_queue):
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Logger.__init__(self)
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NetworkRetryManager.__init__(self, max_retry_delay_normal=1, init_retry_delay_normal=1)
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self.node_keypair = local_keypair
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self.network = MockNetwork(tx_queue)
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self.channel_db = self.network.channel_db
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self._channels = {chan.channel_id: chan
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for chan in chans}
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self.payments = {}
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self.logs = defaultdict(list)
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self.wallet = MockWallet()
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self.features = LnFeatures(0)
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self.features |= LnFeatures.OPTION_DATA_LOSS_PROTECT_OPT
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self.features |= LnFeatures.OPTION_UPFRONT_SHUTDOWN_SCRIPT_OPT
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self.pending_payments = defaultdict(asyncio.Future)
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for chan in chans:
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chan.lnworker = self
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self._peers = {} # bytes -> Peer
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# used in tests
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self.enable_htlc_settle = asyncio.Event()
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self.enable_htlc_settle.set()
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self.received_htlcs = dict()
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self.sent_htlcs = defaultdict(asyncio.Queue)
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self.sent_htlcs_routes = dict()
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self.sent_buckets = defaultdict(set)
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def get_invoice_status(self, key):
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pass
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@property
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def lock(self):
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return noop_lock()
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@property
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def channels(self):
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return self._channels
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@property
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def peers(self):
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return self._peers
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def get_channel_by_short_id(self, short_channel_id):
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with self.lock:
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for chan in self._channels.values():
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if chan.short_channel_id == short_channel_id:
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return chan
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def channel_state_changed(self, chan):
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pass
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def save_channel(self, chan):
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print("Ignoring channel save")
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inflight_payments = set()
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preimages = {}
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get_payments = LNWallet.get_payments
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get_payment_info = LNWallet.get_payment_info
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save_payment_info = LNWallet.save_payment_info
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set_invoice_status = LNWallet.set_invoice_status
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set_payment_status = LNWallet.set_payment_status
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get_payment_status = LNWallet.get_payment_status
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add_received_htlc = LNWallet.add_received_htlc
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htlc_fulfilled = LNWallet.htlc_fulfilled
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htlc_failed = LNWallet.htlc_failed
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save_preimage = LNWallet.save_preimage
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get_preimage = LNWallet.get_preimage
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create_route_for_payment = LNWallet.create_route_for_payment
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create_routes_for_payment = LNWallet.create_routes_for_payment
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create_routes_from_invoice = LNWallet.create_routes_from_invoice
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_check_invoice = staticmethod(LNWallet._check_invoice)
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pay_to_route = LNWallet.pay_to_route
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pay_to_node = LNWallet.pay_to_node
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pay_invoice = LNWallet.pay_invoice
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force_close_channel = LNWallet.force_close_channel
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try_force_closing = LNWallet.try_force_closing
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get_first_timestamp = lambda self: 0
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on_peer_successfully_established = LNWallet.on_peer_successfully_established
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get_channel_by_id = LNWallet.get_channel_by_id
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channels_for_peer = LNWallet.channels_for_peer
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_calc_routing_hints_for_invoice = LNWallet._calc_routing_hints_for_invoice
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handle_error_code_from_failed_htlc = LNWallet.handle_error_code_from_failed_htlc
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class MockTransport:
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def __init__(self, name):
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self.queue = asyncio.Queue()
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self._name = name
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def name(self):
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return self._name
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async def read_messages(self):
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while True:
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yield await self.queue.get()
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class NoFeaturesTransport(MockTransport):
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"""
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This answers the init message with a init that doesn't signal any features.
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Used for testing that we require DATA_LOSS_PROTECT.
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"""
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def send_bytes(self, data):
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decoded = decode_msg(data)
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print(decoded)
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if decoded[0] == 'init':
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self.queue.put_nowait(encode_msg('init', lflen=1, gflen=1, localfeatures=b"\x00", globalfeatures=b"\x00"))
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class PutIntoOthersQueueTransport(MockTransport):
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def __init__(self, keypair, name):
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super().__init__(name)
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self.other_mock_transport = None
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self.privkey = keypair.privkey
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def send_bytes(self, data):
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self.other_mock_transport.queue.put_nowait(data)
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def transport_pair(k1, k2, name1, name2):
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t1 = PutIntoOthersQueueTransport(k1, name2)
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t2 = PutIntoOthersQueueTransport(k2, name1)
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t1.other_mock_transport = t2
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t2.other_mock_transport = t1
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return t1, t2
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class SquareGraph(NamedTuple):
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# A
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# / \
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# B C
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# \ /
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# D
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w_a: MockLNWallet
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w_b: MockLNWallet
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w_c: MockLNWallet
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w_d: MockLNWallet
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peer_ab: Peer
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peer_ac: Peer
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peer_ba: Peer
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peer_bd: Peer
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peer_ca: Peer
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peer_cd: Peer
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peer_db: Peer
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peer_dc: Peer
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chan_ab: Channel
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chan_ac: Channel
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chan_ba: Channel
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chan_bd: Channel
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chan_ca: Channel
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chan_cd: Channel
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chan_db: Channel
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chan_dc: Channel
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def all_peers(self) -> Iterable[Peer]:
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return self.peer_ab, self.peer_ac, self.peer_ba, self.peer_bd, self.peer_ca, self.peer_cd, self.peer_db, self.peer_dc
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class PaymentDone(Exception): pass
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class TestPeer(ElectrumTestCase):
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@classmethod
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def setUpClass(cls):
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super().setUpClass()
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console_stderr_handler.setLevel(logging.DEBUG)
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def setUp(self):
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super().setUp()
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self.asyncio_loop, self._stop_loop, self._loop_thread = create_and_start_event_loop()
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def tearDown(self):
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super().tearDown()
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self.asyncio_loop.call_soon_threadsafe(self._stop_loop.set_result, 1)
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self._loop_thread.join(timeout=1)
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def prepare_peers(self, alice_channel, bob_channel):
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k1, k2 = keypair(), keypair()
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alice_channel.node_id = k2.pubkey
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bob_channel.node_id = k1.pubkey
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t1, t2 = transport_pair(k1, k2, alice_channel.name, bob_channel.name)
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q1, q2 = asyncio.Queue(), asyncio.Queue()
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w1 = MockLNWallet(local_keypair=k1, chans=[alice_channel], tx_queue=q1)
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w2 = MockLNWallet(local_keypair=k2, chans=[bob_channel], tx_queue=q2)
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p1 = Peer(w1, k2.pubkey, t1)
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p2 = Peer(w2, k1.pubkey, t2)
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w1._peers[p1.pubkey] = p1
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w2._peers[p2.pubkey] = p2
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# mark_open won't work if state is already OPEN.
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# so set it to FUNDED
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alice_channel._state = ChannelState.FUNDED
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bob_channel._state = ChannelState.FUNDED
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# this populates the channel graph:
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p1.mark_open(alice_channel)
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p2.mark_open(bob_channel)
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return p1, p2, w1, w2, q1, q2
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def prepare_chans_and_peers_in_square(self) -> SquareGraph:
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key_a, key_b, key_c, key_d = [keypair() for i in range(4)]
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chan_ab, chan_ba = create_test_channels(alice_name="alice", bob_name="bob", alice_pubkey=key_a.pubkey, bob_pubkey=key_b.pubkey)
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chan_ac, chan_ca = create_test_channels(alice_name="alice", bob_name="carol", alice_pubkey=key_a.pubkey, bob_pubkey=key_c.pubkey)
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chan_bd, chan_db = create_test_channels(alice_name="bob", bob_name="dave", alice_pubkey=key_b.pubkey, bob_pubkey=key_d.pubkey)
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chan_cd, chan_dc = create_test_channels(alice_name="carol", bob_name="dave", alice_pubkey=key_c.pubkey, bob_pubkey=key_d.pubkey)
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trans_ab, trans_ba = transport_pair(key_a, key_b, chan_ab.name, chan_ba.name)
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trans_ac, trans_ca = transport_pair(key_a, key_c, chan_ac.name, chan_ca.name)
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trans_bd, trans_db = transport_pair(key_b, key_d, chan_bd.name, chan_db.name)
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trans_cd, trans_dc = transport_pair(key_c, key_d, chan_cd.name, chan_dc.name)
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txq_a, txq_b, txq_c, txq_d = [asyncio.Queue() for i in range(4)]
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w_a = MockLNWallet(local_keypair=key_a, chans=[chan_ab, chan_ac], tx_queue=txq_a)
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w_b = MockLNWallet(local_keypair=key_b, chans=[chan_ba, chan_bd], tx_queue=txq_b)
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w_c = MockLNWallet(local_keypair=key_c, chans=[chan_ca, chan_cd], tx_queue=txq_c)
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w_d = MockLNWallet(local_keypair=key_d, chans=[chan_db, chan_dc], tx_queue=txq_d)
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peer_ab = Peer(w_a, key_b.pubkey, trans_ab)
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peer_ac = Peer(w_a, key_c.pubkey, trans_ac)
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peer_ba = Peer(w_b, key_a.pubkey, trans_ba)
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peer_bd = Peer(w_b, key_d.pubkey, trans_bd)
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peer_ca = Peer(w_c, key_a.pubkey, trans_ca)
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peer_cd = Peer(w_c, key_d.pubkey, trans_cd)
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peer_db = Peer(w_d, key_b.pubkey, trans_db)
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peer_dc = Peer(w_d, key_c.pubkey, trans_dc)
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w_a._peers[peer_ab.pubkey] = peer_ab
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w_a._peers[peer_ac.pubkey] = peer_ac
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w_b._peers[peer_ba.pubkey] = peer_ba
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w_b._peers[peer_bd.pubkey] = peer_bd
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w_c._peers[peer_ca.pubkey] = peer_ca
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w_c._peers[peer_cd.pubkey] = peer_cd
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w_d._peers[peer_db.pubkey] = peer_db
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w_d._peers[peer_dc.pubkey] = peer_dc
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w_b.network.config.set_key('lightning_forward_payments', True)
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w_c.network.config.set_key('lightning_forward_payments', True)
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# mark_open won't work if state is already OPEN.
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# so set it to FUNDED
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for chan in [chan_ab, chan_ac, chan_ba, chan_bd, chan_ca, chan_cd, chan_db, chan_dc]:
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chan._state = ChannelState.FUNDED
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# this populates the channel graph:
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peer_ab.mark_open(chan_ab)
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peer_ac.mark_open(chan_ac)
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peer_ba.mark_open(chan_ba)
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peer_bd.mark_open(chan_bd)
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peer_ca.mark_open(chan_ca)
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peer_cd.mark_open(chan_cd)
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peer_db.mark_open(chan_db)
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peer_dc.mark_open(chan_dc)
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return SquareGraph(
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w_a=w_a,
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w_b=w_b,
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w_c=w_c,
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w_d=w_d,
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peer_ab=peer_ab,
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peer_ac=peer_ac,
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peer_ba=peer_ba,
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peer_bd=peer_bd,
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peer_ca=peer_ca,
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peer_cd=peer_cd,
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peer_db=peer_db,
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peer_dc=peer_dc,
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chan_ab=chan_ab,
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chan_ac=chan_ac,
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chan_ba=chan_ba,
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chan_bd=chan_bd,
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chan_ca=chan_ca,
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chan_cd=chan_cd,
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chan_db=chan_db,
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chan_dc=chan_dc,
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)
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@staticmethod
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async def prepare_invoice(
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w2: MockLNWallet, # receiver
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*,
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amount_msat=100_000_000,
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include_routing_hints=False,
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):
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amount_btc = amount_msat/Decimal(COIN*1000)
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payment_preimage = os.urandom(32)
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RHASH = sha256(payment_preimage)
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info = PaymentInfo(RHASH, amount_msat, RECEIVED, PR_UNPAID)
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w2.save_preimage(RHASH, payment_preimage)
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w2.save_payment_info(info)
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if include_routing_hints:
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routing_hints = await w2._calc_routing_hints_for_invoice(amount_msat)
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else:
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routing_hints = []
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lnaddr = LnAddr(
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paymenthash=RHASH,
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amount=amount_btc,
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tags=[('c', lnutil.MIN_FINAL_CLTV_EXPIRY_FOR_INVOICE),
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('d', 'coffee')
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] + routing_hints)
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return lnencode(lnaddr, w2.node_keypair.privkey)
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def test_reestablish(self):
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alice_channel, bob_channel = create_test_channels()
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p1, p2, w1, w2, _q1, _q2 = self.prepare_peers(alice_channel, bob_channel)
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for chan in (alice_channel, bob_channel):
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chan.peer_state = PeerState.DISCONNECTED
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async def reestablish():
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await asyncio.gather(
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p1.reestablish_channel(alice_channel),
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p2.reestablish_channel(bob_channel))
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self.assertEqual(alice_channel.peer_state, PeerState.GOOD)
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self.assertEqual(bob_channel.peer_state, PeerState.GOOD)
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gath.cancel()
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gath = asyncio.gather(reestablish(), p1._message_loop(), p2._message_loop(), p1.htlc_switch(), p1.htlc_switch())
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async def f():
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await gath
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with self.assertRaises(concurrent.futures.CancelledError):
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run(f())
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@needs_test_with_all_chacha20_implementations
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def test_reestablish_with_old_state(self):
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random_seed = os.urandom(32)
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alice_channel, bob_channel = create_test_channels(random_seed=random_seed)
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alice_channel_0, bob_channel_0 = create_test_channels(random_seed=random_seed) # these are identical
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p1, p2, w1, w2, _q1, _q2 = self.prepare_peers(alice_channel, bob_channel)
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pay_req = run(self.prepare_invoice(w2))
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async def pay():
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result, log = await w1.pay_invoice(pay_req)
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self.assertEqual(result, True)
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gath.cancel()
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gath = asyncio.gather(pay(), p1._message_loop(), p2._message_loop(), p1.htlc_switch(), p2.htlc_switch())
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async def f():
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await gath
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with self.assertRaises(concurrent.futures.CancelledError):
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run(f())
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|
|
p1, p2, w1, w2, _q1, _q2 = self.prepare_peers(alice_channel_0, bob_channel)
|
|
for chan in (alice_channel_0, bob_channel):
|
|
chan.peer_state = PeerState.DISCONNECTED
|
|
async def reestablish():
|
|
await asyncio.gather(
|
|
p1.reestablish_channel(alice_channel_0),
|
|
p2.reestablish_channel(bob_channel))
|
|
self.assertEqual(alice_channel_0.peer_state, PeerState.BAD)
|
|
self.assertEqual(bob_channel._state, ChannelState.FORCE_CLOSING)
|
|
# wait so that pending messages are processed
|
|
#await asyncio.sleep(1)
|
|
gath.cancel()
|
|
gath = asyncio.gather(reestablish(), p1._message_loop(), p2._message_loop(), p1.htlc_switch(), p2.htlc_switch())
|
|
async def f():
|
|
await gath
|
|
with self.assertRaises(concurrent.futures.CancelledError):
|
|
run(f())
|
|
|
|
@needs_test_with_all_chacha20_implementations
|
|
def test_payment(self):
|
|
alice_channel, bob_channel = create_test_channels()
|
|
p1, p2, w1, w2, _q1, _q2 = self.prepare_peers(alice_channel, bob_channel)
|
|
async def pay(pay_req):
|
|
result, log = await w1.pay_invoice(pay_req)
|
|
self.assertTrue(result)
|
|
raise PaymentDone()
|
|
async def f():
|
|
async with TaskGroup() as group:
|
|
await group.spawn(p1._message_loop())
|
|
await group.spawn(p1.htlc_switch())
|
|
await group.spawn(p2._message_loop())
|
|
await group.spawn(p2.htlc_switch())
|
|
await asyncio.sleep(0.01)
|
|
pay_req = await self.prepare_invoice(w2)
|
|
await group.spawn(pay(pay_req))
|
|
with self.assertRaises(PaymentDone):
|
|
run(f())
|
|
|
|
@needs_test_with_all_chacha20_implementations
|
|
def test_payment_race(self):
|
|
"""Alice and Bob pay each other simultaneously.
|
|
They both send 'update_add_htlc' and receive each other's update
|
|
before sending 'commitment_signed'. Neither party should fulfill
|
|
the respective HTLCs until those are irrevocably committed to.
|
|
"""
|
|
alice_channel, bob_channel = create_test_channels()
|
|
p1, p2, w1, w2, _q1, _q2 = self.prepare_peers(alice_channel, bob_channel)
|
|
async def pay():
|
|
await asyncio.wait_for(p1.initialized, 1)
|
|
await asyncio.wait_for(p2.initialized, 1)
|
|
# prep
|
|
_maybe_send_commitment1 = p1.maybe_send_commitment
|
|
_maybe_send_commitment2 = p2.maybe_send_commitment
|
|
pay_req2 = await self.prepare_invoice(w2)
|
|
lnaddr2 = lndecode(pay_req2, expected_hrp=constants.net.SEGWIT_HRP)
|
|
pay_req1 = await self.prepare_invoice(w1)
|
|
lnaddr1 = lndecode(pay_req1, expected_hrp=constants.net.SEGWIT_HRP)
|
|
# create the htlc queues now (side-effecting defaultdict)
|
|
q1 = w1.sent_htlcs[lnaddr2.paymenthash]
|
|
q2 = w2.sent_htlcs[lnaddr1.paymenthash]
|
|
# alice sends htlc BUT NOT COMMITMENT_SIGNED
|
|
p1.maybe_send_commitment = lambda x: None
|
|
route1, amount_msat1 = w1.create_routes_from_invoice(lnaddr2.get_amount_msat(), decoded_invoice=lnaddr2)[0][0:2]
|
|
await w1.pay_to_route(
|
|
route=route1,
|
|
amount_msat=lnaddr2.get_amount_msat(),
|
|
total_msat=lnaddr2.get_amount_msat(),
|
|
payment_hash=lnaddr2.paymenthash,
|
|
min_cltv_expiry=lnaddr2.get_min_final_cltv_expiry(),
|
|
payment_secret=lnaddr2.payment_secret,
|
|
)
|
|
p1.maybe_send_commitment = _maybe_send_commitment1
|
|
# bob sends htlc BUT NOT COMMITMENT_SIGNED
|
|
p2.maybe_send_commitment = lambda x: None
|
|
route2, amount_msat2 = w2.create_routes_from_invoice(lnaddr1.get_amount_msat(), decoded_invoice=lnaddr1)[0][0:2]
|
|
await w2.pay_to_route(
|
|
route=route2,
|
|
amount_msat=lnaddr1.get_amount_msat(),
|
|
total_msat=lnaddr1.get_amount_msat(),
|
|
payment_hash=lnaddr1.paymenthash,
|
|
min_cltv_expiry=lnaddr1.get_min_final_cltv_expiry(),
|
|
payment_secret=lnaddr1.payment_secret,
|
|
)
|
|
p2.maybe_send_commitment = _maybe_send_commitment2
|
|
# sleep a bit so that they both receive msgs sent so far
|
|
await asyncio.sleep(0.2)
|
|
# now they both send COMMITMENT_SIGNED
|
|
p1.maybe_send_commitment(alice_channel)
|
|
p2.maybe_send_commitment(bob_channel)
|
|
|
|
htlc_log1 = await q1.get()
|
|
assert htlc_log1.success
|
|
htlc_log2 = await q2.get()
|
|
assert htlc_log2.success
|
|
raise PaymentDone()
|
|
|
|
async def f():
|
|
async with TaskGroup() as group:
|
|
await group.spawn(p1._message_loop())
|
|
await group.spawn(p1.htlc_switch())
|
|
await group.spawn(p2._message_loop())
|
|
await group.spawn(p2.htlc_switch())
|
|
await asyncio.sleep(0.01)
|
|
await group.spawn(pay())
|
|
with self.assertRaises(PaymentDone):
|
|
run(f())
|
|
|
|
#@unittest.skip("too expensive")
|
|
#@needs_test_with_all_chacha20_implementations
|
|
def test_payments_stresstest(self):
|
|
alice_channel, bob_channel = create_test_channels()
|
|
p1, p2, w1, w2, _q1, _q2 = self.prepare_peers(alice_channel, bob_channel)
|
|
alice_init_balance_msat = alice_channel.balance(HTLCOwner.LOCAL)
|
|
bob_init_balance_msat = bob_channel.balance(HTLCOwner.LOCAL)
|
|
num_payments = 50
|
|
payment_value_msat = 10_000_000 # make it large enough so that there are actually HTLCs on the ctx
|
|
max_htlcs_in_flight = asyncio.Semaphore(5)
|
|
async def single_payment(pay_req):
|
|
async with max_htlcs_in_flight:
|
|
await w1.pay_invoice(pay_req)
|
|
async def many_payments():
|
|
async with TaskGroup() as group:
|
|
pay_reqs_tasks = [await group.spawn(self.prepare_invoice(w2, amount_msat=payment_value_msat))
|
|
for i in range(num_payments)]
|
|
async with TaskGroup() as group:
|
|
for pay_req_task in pay_reqs_tasks:
|
|
pay_req = pay_req_task.result()
|
|
await group.spawn(single_payment(pay_req))
|
|
gath.cancel()
|
|
gath = asyncio.gather(many_payments(), p1._message_loop(), p2._message_loop(), p1.htlc_switch(), p2.htlc_switch())
|
|
async def f():
|
|
await gath
|
|
with self.assertRaises(concurrent.futures.CancelledError):
|
|
run(f())
|
|
self.assertEqual(alice_init_balance_msat - num_payments * payment_value_msat, alice_channel.balance(HTLCOwner.LOCAL))
|
|
self.assertEqual(alice_init_balance_msat - num_payments * payment_value_msat, bob_channel.balance(HTLCOwner.REMOTE))
|
|
self.assertEqual(bob_init_balance_msat + num_payments * payment_value_msat, bob_channel.balance(HTLCOwner.LOCAL))
|
|
self.assertEqual(bob_init_balance_msat + num_payments * payment_value_msat, alice_channel.balance(HTLCOwner.REMOTE))
|
|
|
|
@needs_test_with_all_chacha20_implementations
|
|
def test_payment_multihop(self):
|
|
graph = self.prepare_chans_and_peers_in_square()
|
|
peers = graph.all_peers()
|
|
async def pay(pay_req):
|
|
result, log = await graph.w_a.pay_invoice(pay_req)
|
|
self.assertTrue(result)
|
|
raise PaymentDone()
|
|
async def f():
|
|
async with TaskGroup() as group:
|
|
for peer in peers:
|
|
await group.spawn(peer._message_loop())
|
|
await group.spawn(peer.htlc_switch())
|
|
await asyncio.sleep(0.2)
|
|
pay_req = await self.prepare_invoice(graph.w_d, include_routing_hints=True)
|
|
await group.spawn(pay(pay_req))
|
|
with self.assertRaises(PaymentDone):
|
|
run(f())
|
|
|
|
@needs_test_with_all_chacha20_implementations
|
|
def test_payment_multihop_with_preselected_path(self):
|
|
graph = self.prepare_chans_and_peers_in_square()
|
|
peers = graph.all_peers()
|
|
async def pay(pay_req):
|
|
with self.subTest(msg="bad path: edges do not chain together"):
|
|
path = [PathEdge(start_node=graph.w_a.node_keypair.pubkey,
|
|
end_node=graph.w_c.node_keypair.pubkey,
|
|
short_channel_id=graph.chan_ab.short_channel_id),
|
|
PathEdge(start_node=graph.w_b.node_keypair.pubkey,
|
|
end_node=graph.w_d.node_keypair.pubkey,
|
|
short_channel_id=graph.chan_bd.short_channel_id)]
|
|
with self.assertRaises(LNPathInconsistent):
|
|
await graph.w_a.pay_invoice(pay_req, full_path=path)
|
|
with self.subTest(msg="bad path: last node id differs from invoice pubkey"):
|
|
path = [PathEdge(start_node=graph.w_a.node_keypair.pubkey,
|
|
end_node=graph.w_b.node_keypair.pubkey,
|
|
short_channel_id=graph.chan_ab.short_channel_id)]
|
|
with self.assertRaises(LNPathInconsistent):
|
|
await graph.w_a.pay_invoice(pay_req, full_path=path)
|
|
with self.subTest(msg="good path"):
|
|
path = [PathEdge(start_node=graph.w_a.node_keypair.pubkey,
|
|
end_node=graph.w_b.node_keypair.pubkey,
|
|
short_channel_id=graph.chan_ab.short_channel_id),
|
|
PathEdge(start_node=graph.w_b.node_keypair.pubkey,
|
|
end_node=graph.w_d.node_keypair.pubkey,
|
|
short_channel_id=graph.chan_bd.short_channel_id)]
|
|
result, log = await graph.w_a.pay_invoice(pay_req, full_path=path)
|
|
self.assertTrue(result)
|
|
self.assertEqual(
|
|
[edge.short_channel_id for edge in path],
|
|
[edge.short_channel_id for edge in log[0].route])
|
|
raise PaymentDone()
|
|
async def f():
|
|
async with TaskGroup() as group:
|
|
for peer in peers:
|
|
await group.spawn(peer._message_loop())
|
|
await group.spawn(peer.htlc_switch())
|
|
await asyncio.sleep(0.2)
|
|
pay_req = await self.prepare_invoice(graph.w_d, include_routing_hints=True)
|
|
await group.spawn(pay(pay_req))
|
|
with self.assertRaises(PaymentDone):
|
|
run(f())
|
|
|
|
@needs_test_with_all_chacha20_implementations
|
|
def test_payment_multihop_temp_node_failure(self):
|
|
graph = self.prepare_chans_and_peers_in_square()
|
|
graph.w_b.network.config.set_key('test_fail_htlcs_with_temp_node_failure', True)
|
|
graph.w_c.network.config.set_key('test_fail_htlcs_with_temp_node_failure', True)
|
|
peers = graph.all_peers()
|
|
async def pay(pay_req):
|
|
result, log = await graph.w_a.pay_invoice(pay_req)
|
|
self.assertFalse(result)
|
|
self.assertEqual(OnionFailureCode.TEMPORARY_NODE_FAILURE, log[0].failure_msg.code)
|
|
raise PaymentDone()
|
|
async def f():
|
|
async with TaskGroup() as group:
|
|
for peer in peers:
|
|
await group.spawn(peer._message_loop())
|
|
await group.spawn(peer.htlc_switch())
|
|
await asyncio.sleep(0.2)
|
|
pay_req = await self.prepare_invoice(graph.w_d, include_routing_hints=True)
|
|
await group.spawn(pay(pay_req))
|
|
with self.assertRaises(PaymentDone):
|
|
run(f())
|
|
|
|
@needs_test_with_all_chacha20_implementations
|
|
def test_close(self):
|
|
alice_channel, bob_channel = create_test_channels()
|
|
p1, p2, w1, w2, _q1, _q2 = self.prepare_peers(alice_channel, bob_channel)
|
|
w1.network.config.set_key('dynamic_fees', False)
|
|
w2.network.config.set_key('dynamic_fees', False)
|
|
w1.network.config.set_key('fee_per_kb', 5000)
|
|
w2.network.config.set_key('fee_per_kb', 1000)
|
|
w2.enable_htlc_settle.clear()
|
|
pay_req = run(self.prepare_invoice(w2))
|
|
lnaddr = lndecode(pay_req, expected_hrp=constants.net.SEGWIT_HRP)
|
|
async def pay():
|
|
await asyncio.wait_for(p1.initialized, 1)
|
|
await asyncio.wait_for(p2.initialized, 1)
|
|
# alice sends htlc
|
|
route, amount_msat = w1.create_routes_from_invoice(lnaddr.get_amount_msat(), decoded_invoice=lnaddr)[0][0:2]
|
|
htlc = p1.pay(route=route,
|
|
chan=alice_channel,
|
|
amount_msat=lnaddr.get_amount_msat(),
|
|
total_msat=lnaddr.get_amount_msat(),
|
|
payment_hash=lnaddr.paymenthash,
|
|
min_final_cltv_expiry=lnaddr.get_min_final_cltv_expiry(),
|
|
payment_secret=lnaddr.payment_secret)
|
|
# alice closes
|
|
await p1.close_channel(alice_channel.channel_id)
|
|
gath.cancel()
|
|
async def set_settle():
|
|
await asyncio.sleep(0.1)
|
|
w2.enable_htlc_settle.set()
|
|
gath = asyncio.gather(pay(), set_settle(), p1._message_loop(), p2._message_loop(), p1.htlc_switch(), p2.htlc_switch())
|
|
async def f():
|
|
await gath
|
|
with self.assertRaises(concurrent.futures.CancelledError):
|
|
run(f())
|
|
|
|
@needs_test_with_all_chacha20_implementations
|
|
def test_close_upfront_shutdown_script(self):
|
|
alice_channel, bob_channel = create_test_channels()
|
|
|
|
# create upfront shutdown script for bob, alice doesn't use upfront
|
|
# shutdown script
|
|
bob_uss_pub = lnutil.privkey_to_pubkey(os.urandom(32))
|
|
bob_uss_addr = bitcoin.pubkey_to_address('p2wpkh', bh2u(bob_uss_pub))
|
|
bob_uss = bfh(bitcoin.address_to_script(bob_uss_addr))
|
|
|
|
# bob commits to close to bob_uss
|
|
alice_channel.config[HTLCOwner.REMOTE].upfront_shutdown_script = bob_uss
|
|
# but bob closes to some receiving address, which we achieve by not
|
|
# setting the upfront shutdown script in the channel config
|
|
bob_channel.config[HTLCOwner.LOCAL].upfront_shutdown_script = b''
|
|
|
|
p1, p2, w1, w2, q1, q2 = self.prepare_peers(alice_channel, bob_channel)
|
|
w1.network.config.set_key('dynamic_fees', False)
|
|
w2.network.config.set_key('dynamic_fees', False)
|
|
w1.network.config.set_key('fee_per_kb', 5000)
|
|
w2.network.config.set_key('fee_per_kb', 1000)
|
|
|
|
async def test():
|
|
async def close():
|
|
await asyncio.wait_for(p1.initialized, 1)
|
|
await asyncio.wait_for(p2.initialized, 1)
|
|
# bob closes channel with different shutdown script
|
|
await p1.close_channel(alice_channel.channel_id)
|
|
gath.cancel()
|
|
|
|
async def main_loop(peer):
|
|
async with peer.taskgroup as group:
|
|
await group.spawn(peer._message_loop())
|
|
await group.spawn(peer.htlc_switch())
|
|
|
|
coros = [close(), main_loop(p1), main_loop(p2)]
|
|
gath = asyncio.gather(*coros)
|
|
await gath
|
|
|
|
with self.assertRaises(UpfrontShutdownScriptViolation):
|
|
run(test())
|
|
|
|
# bob sends the same upfront_shutdown_script has he announced
|
|
alice_channel.config[HTLCOwner.REMOTE].upfront_shutdown_script = bob_uss
|
|
bob_channel.config[HTLCOwner.LOCAL].upfront_shutdown_script = bob_uss
|
|
|
|
p1, p2, w1, w2, q1, q2 = self.prepare_peers(alice_channel, bob_channel)
|
|
w1.network.config.set_key('dynamic_fees', False)
|
|
w2.network.config.set_key('dynamic_fees', False)
|
|
w1.network.config.set_key('fee_per_kb', 5000)
|
|
w2.network.config.set_key('fee_per_kb', 1000)
|
|
|
|
async def test():
|
|
async def close():
|
|
await asyncio.wait_for(p1.initialized, 1)
|
|
await asyncio.wait_for(p2.initialized, 1)
|
|
await p1.close_channel(alice_channel.channel_id)
|
|
gath.cancel()
|
|
|
|
async def main_loop(peer):
|
|
async with peer.taskgroup as group:
|
|
await group.spawn(peer._message_loop())
|
|
await group.spawn(peer.htlc_switch())
|
|
|
|
coros = [close(), main_loop(p1), main_loop(p2)]
|
|
gath = asyncio.gather(*coros)
|
|
await gath
|
|
with self.assertRaises(concurrent.futures.CancelledError):
|
|
run(test())
|
|
|
|
def test_channel_usage_after_closing(self):
|
|
alice_channel, bob_channel = create_test_channels()
|
|
p1, p2, w1, w2, q1, q2 = self.prepare_peers(alice_channel, bob_channel)
|
|
pay_req = run(self.prepare_invoice(w2))
|
|
|
|
lnaddr = w1._check_invoice(pay_req)
|
|
route, amount_msat = w1.create_routes_from_invoice(lnaddr.get_amount_msat(), decoded_invoice=lnaddr)[0][0:2]
|
|
assert amount_msat == lnaddr.get_amount_msat()
|
|
|
|
run(w1.force_close_channel(alice_channel.channel_id))
|
|
# check if a tx (commitment transaction) was broadcasted:
|
|
assert q1.qsize() == 1
|
|
|
|
with self.assertRaises(NoPathFound) as e:
|
|
w1.create_routes_from_invoice(lnaddr.get_amount_msat(), decoded_invoice=lnaddr)
|
|
|
|
peer = w1.peers[route[0].node_id]
|
|
# AssertionError is ok since we shouldn't use old routes, and the
|
|
# route finding should fail when channel is closed
|
|
async def f():
|
|
min_cltv_expiry = lnaddr.get_min_final_cltv_expiry()
|
|
payment_hash = lnaddr.paymenthash
|
|
payment_secret = lnaddr.payment_secret
|
|
pay = w1.pay_to_route(
|
|
route=route,
|
|
amount_msat=amount_msat,
|
|
total_msat=amount_msat,
|
|
payment_hash=payment_hash,
|
|
payment_secret=payment_secret,
|
|
min_cltv_expiry=min_cltv_expiry)
|
|
await asyncio.gather(pay, p1._message_loop(), p2._message_loop(), p1.htlc_switch(), p2.htlc_switch())
|
|
with self.assertRaises(PaymentFailure):
|
|
run(f())
|
|
|
|
|
|
def run(coro):
|
|
return asyncio.run_coroutine_threadsafe(coro, loop=asyncio.get_event_loop()).result()
|