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channel_establishment_flow: wait for confirmations of funding txn

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SomberNight 2018-04-19 15:05:38 +02:00
parent 9a4650dac7
commit 42b222a8b8
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2 changed files with 27 additions and 3 deletions
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27
lib/lnbase.py
View file

@ -449,11 +449,12 @@ def make_commitment(ctn, local_funding_pubkey, remote_funding_pubkey, remotepubk
class Peer(PrintError):
def __init__(self, host, port, pubkey, request_initial_sync=True):
def __init__(self, host, port, pubkey, request_initial_sync=True, network=None):
self.host = host
self.port = port
self.privkey = os.urandom(32) + b"\x01"
self.pubkey = pubkey
self.network = network
self.read_buffer = b''
self.ping_time = 0
self.channel_accepted = {}
@ -706,6 +707,7 @@ class Peer(PrintError):
remote_revocation_basepoint = payload['revocation_basepoint']
remote_payment_basepoint = payload['payment_basepoint']
remote_delayed_payment_basepoint = payload['delayed_payment_basepoint']
funding_txn_minimum_depth = int.from_bytes(payload['minimum_depth'], byteorder="big")
self.print_error('remote dust limit', remote_dust_limit_satoshis)
self.print_error('remote delay', remote_delay)
# create funding tx
@ -772,6 +774,22 @@ class Peer(PrintError):
self.remote_funding_locked[channel_id] = asyncio.Future()
self.network.broadcast(funding_tx)
# wait until we see confirmations
def on_network_update(event, *args):
if event == 'updated':
conf = wallet.get_tx_height(funding_txid)[1]
if conf >= funding_txn_minimum_depth:
try:
self.local_funding_locked[channel_id].set_result(1)
except (asyncio.InvalidStateError, KeyError) as e:
# FIXME race condition if updates come in quickly, set_result might be called multiple times
# or self.local_funding_locked[channel_id] might be deleted already
self.print_error('local_funding_locked.set_result error for channel {}: {}'.format(channel_id, e))
self.network.unregister_callback(on_network_update, ['updated'])
else:
self.print_error("unexpected network message:", event, args)
self.network.register_callback(on_network_update, ['updated'])
try:
await self.local_funding_locked[channel_id]
finally:
@ -874,7 +892,12 @@ class ChannelDB(PrintError):
def on_channel_update(self, msg_payload):
short_channel_id = msg_payload['short_channel_id']
self._id_to_channel_info[short_channel_id].on_channel_update(msg_payload)
try:
channel_info = self._id_to_channel_info[short_channel_id]
except KeyError:
pass # ignore channel update
else:
channel_info.on_channel_update(msg_payload)
def remove_channel(self, short_channel_id):
try:

3
lib/tests/test_lnbase_online.py
View file

@ -34,8 +34,9 @@ if __name__ == "__main__":
# wallet
storage = WalletStorage(config.get_wallet_path())
wallet = Wallet(storage)
wallet.start_threads(network)
# start peer
peer = Peer(host, port, pubkey, request_initial_sync=False)
peer = Peer(host, port, pubkey, request_initial_sync=False, network=network)
network.futures.append(asyncio.run_coroutine_threadsafe(peer.main_loop(), network.asyncio_loop))
# run blocking test
start = time.time()