class TestPeer(ElectrumTestCase):
@classmethod
def setUpClass(cls):
super().setUpClass()
console_stderr_handler.setLevel(logging.DEBUG)
def setUp(self):
super().setUp()
self.asyncio_loop, self._stop_loop, self._loop_thread = create_and_start_event_loop()
def tearDown(self):
super().tearDown()
self.asyncio_loop.call_soon_threadsafe(self._stop_loop.set_result, 1)
self._loop_thread.join(timeout=1)
def prepare_peers(self, alice_channel, bob_channel):
k1, k2 = keypair(), keypair()
t1, t2 = transport_pair(alice_channel.name, bob_channel.name)
q1, q2 = asyncio.Queue(), asyncio.Queue()
w1 = MockLNWallet(k1, k2, alice_channel, tx_queue=q1)
w2 = MockLNWallet(k2, k1, bob_channel, tx_queue=q2)
p1 = Peer(w1, k1.pubkey, t1)
p2 = Peer(w2, k2.pubkey, t2)
w1.peer = p1
w2.peer = p2
# mark_open won't work if state is already OPEN.
# so set it to FUNDED
alice_channel._state = channel_states.FUNDED
bob_channel._state = channel_states.FUNDED
# this populates the channel graph:
p1.mark_open(alice_channel)
p2.mark_open(bob_channel)
return p1, p2, w1, w2, q1, q2
@staticmethod
def prepare_invoice(
w2, # receiver
*,
amount_sat=100_000,
):
amount_btc = amount_sat/Decimal(COIN)
payment_preimage = os.urandom(32)
RHASH = sha256(payment_preimage)
info = PaymentInfo(RHASH, amount_sat, RECEIVED, PR_UNPAID)
w2.save_preimage(RHASH, payment_preimage)
w2.save_payment_info(info)
lnaddr = LnAddr(
RHASH,
amount_btc,
tags=[('c', lnutil.MIN_FINAL_CLTV_EXPIRY_FOR_INVOICE),
('d', 'coffee')
])
return lnencode(lnaddr, w2.node_keypair.privkey)
def prepare_invoice(w2 # receiver
):
amount_sat = 100000
amount_btc = amount_sat / Decimal(COIN)
payment_preimage = os.urandom(32)
RHASH = sha256(payment_preimage)
info = PaymentInfo(RHASH, amount_sat, RECEIVED, PR_UNPAID)
w2.save_preimage(RHASH, payment_preimage)
w2.save_payment_info(info)
lnaddr = LnAddr(RHASH,
amount_btc,
tags=[('c', lnutil.MIN_FINAL_CLTV_EXPIRY_FOR_INVOICE),
('d', 'coffee')])
return lnencode(lnaddr, w2.node_keypair.privkey)
chan_cd=chan_cd,
chan_db=chan_db,
chan_dc=chan_dc,
)
@staticmethod
async def prepare_invoice(
w2: MockLNWallet, # receiver
*,
amount_msat=100_000_000,
include_routing_hints=False,
):
amount_btc = amount_msat/Decimal(COIN*1000)
payment_preimage = os.urandom(32)
RHASH = sha256(payment_preimage)
info = PaymentInfo(RHASH, amount_msat, RECEIVED, PR_UNPAID)
w2.save_preimage(RHASH, payment_preimage)
w2.save_payment_info(info)
if include_routing_hints:
routing_hints = await w2._calc_routing_hints_for_invoice(amount_msat)
else:
routing_hints = []
lnaddr = LnAddr(
paymenthash=RHASH,
amount=amount_btc,
tags=[('c', lnutil.MIN_FINAL_CLTV_EXPIRY_FOR_INVOICE),
('d', 'coffee')
] + routing_hints)
return lnencode(lnaddr, w2.node_keypair.privkey)
def test_reestablish(self):
class TestPeer(ElectrumTestCase):
@classmethod
def setUpClass(cls):
super().setUpClass()
console_stderr_handler.setLevel(logging.DEBUG)
def setUp(self):
super().setUp()
self.asyncio_loop, self._stop_loop, self._loop_thread = create_and_start_event_loop()
self._lnworkers_created = [] # type: List[MockLNWallet]
def tearDown(self):
async def cleanup_lnworkers():
async with TaskGroup() as group:
for lnworker in self._lnworkers_created:
await group.spawn(lnworker.stop())
self._lnworkers_created.clear()
run(cleanup_lnworkers())
self.asyncio_loop.call_soon_threadsafe(self._stop_loop.set_result, 1)
self._loop_thread.join(timeout=1)
super().tearDown()
def prepare_peers(self, alice_channel, bob_channel):
k1, k2 = keypair(), keypair()
alice_channel.node_id = k2.pubkey
bob_channel.node_id = k1.pubkey
t1, t2 = transport_pair(k1, k2, alice_channel.name, bob_channel.name)
q1, q2 = asyncio.Queue(), asyncio.Queue()
w1 = MockLNWallet(local_keypair=k1, chans=[alice_channel], tx_queue=q1, name=bob_channel.name)
w2 = MockLNWallet(local_keypair=k2, chans=[bob_channel], tx_queue=q2, name=alice_channel.name)
self._lnworkers_created.extend([w1, w2])
p1 = Peer(w1, k2.pubkey, t1)
p2 = Peer(w2, k1.pubkey, t2)
w1._peers[p1.pubkey] = p1
w2._peers[p2.pubkey] = p2
# mark_open won't work if state is already OPEN.
# so set it to FUNDED
alice_channel._state = ChannelState.FUNDED
bob_channel._state = ChannelState.FUNDED
# this populates the channel graph:
p1.mark_open(alice_channel)
p2.mark_open(bob_channel)
return p1, p2, w1, w2, q1, q2
def prepare_chans_and_peers_in_square(self) -> SquareGraph:
key_a, key_b, key_c, key_d = [keypair() for i in range(4)]
chan_ab, chan_ba = create_test_channels(alice_name="alice", bob_name="bob", alice_pubkey=key_a.pubkey, bob_pubkey=key_b.pubkey)
chan_ac, chan_ca = create_test_channels(alice_name="alice", bob_name="carol", alice_pubkey=key_a.pubkey, bob_pubkey=key_c.pubkey)
chan_bd, chan_db = create_test_channels(alice_name="bob", bob_name="dave", alice_pubkey=key_b.pubkey, bob_pubkey=key_d.pubkey)
chan_cd, chan_dc = create_test_channels(alice_name="carol", bob_name="dave", alice_pubkey=key_c.pubkey, bob_pubkey=key_d.pubkey)
trans_ab, trans_ba = transport_pair(key_a, key_b, chan_ab.name, chan_ba.name)
trans_ac, trans_ca = transport_pair(key_a, key_c, chan_ac.name, chan_ca.name)
trans_bd, trans_db = transport_pair(key_b, key_d, chan_bd.name, chan_db.name)
trans_cd, trans_dc = transport_pair(key_c, key_d, chan_cd.name, chan_dc.name)
txq_a, txq_b, txq_c, txq_d = [asyncio.Queue() for i in range(4)]
w_a = MockLNWallet(local_keypair=key_a, chans=[chan_ab, chan_ac], tx_queue=txq_a, name="alice")
w_b = MockLNWallet(local_keypair=key_b, chans=[chan_ba, chan_bd], tx_queue=txq_b, name="bob")
w_c = MockLNWallet(local_keypair=key_c, chans=[chan_ca, chan_cd], tx_queue=txq_c, name="carol")
w_d = MockLNWallet(local_keypair=key_d, chans=[chan_db, chan_dc], tx_queue=txq_d, name="dave")
self._lnworkers_created.extend([w_a, w_b, w_c, w_d])
peer_ab = Peer(w_a, key_b.pubkey, trans_ab)
peer_ac = Peer(w_a, key_c.pubkey, trans_ac)
peer_ba = Peer(w_b, key_a.pubkey, trans_ba)
peer_bd = Peer(w_b, key_d.pubkey, trans_bd)
peer_ca = Peer(w_c, key_a.pubkey, trans_ca)
peer_cd = Peer(w_c, key_d.pubkey, trans_cd)
peer_db = Peer(w_d, key_b.pubkey, trans_db)
peer_dc = Peer(w_d, key_c.pubkey, trans_dc)
w_a._peers[peer_ab.pubkey] = peer_ab
w_a._peers[peer_ac.pubkey] = peer_ac
w_b._peers[peer_ba.pubkey] = peer_ba
w_b._peers[peer_bd.pubkey] = peer_bd
w_c._peers[peer_ca.pubkey] = peer_ca
w_c._peers[peer_cd.pubkey] = peer_cd
w_d._peers[peer_db.pubkey] = peer_db
w_d._peers[peer_dc.pubkey] = peer_dc
w_b.network.config.set_key('lightning_forward_payments', True)
w_c.network.config.set_key('lightning_forward_payments', True)
# forwarding fees, etc
chan_ab.forwarding_fee_proportional_millionths *= 500
chan_ab.forwarding_fee_base_msat *= 500
chan_ba.forwarding_fee_proportional_millionths *= 500
chan_ba.forwarding_fee_base_msat *= 500
chan_bd.forwarding_fee_proportional_millionths *= 500
chan_bd.forwarding_fee_base_msat *= 500
chan_db.forwarding_fee_proportional_millionths *= 500
chan_db.forwarding_fee_base_msat *= 500
# mark_open won't work if state is already OPEN.
# so set it to FUNDED
for chan in [chan_ab, chan_ac, chan_ba, chan_bd, chan_ca, chan_cd, chan_db, chan_dc]:
chan._state = ChannelState.FUNDED
# this populates the channel graph:
peer_ab.mark_open(chan_ab)
peer_ac.mark_open(chan_ac)
peer_ba.mark_open(chan_ba)
peer_bd.mark_open(chan_bd)
peer_ca.mark_open(chan_ca)
peer_cd.mark_open(chan_cd)
peer_db.mark_open(chan_db)
peer_dc.mark_open(chan_dc)
return SquareGraph(
w_a=w_a,
w_b=w_b,
w_c=w_c,
w_d=w_d,
peer_ab=peer_ab,
peer_ac=peer_ac,
peer_ba=peer_ba,
peer_bd=peer_bd,
peer_ca=peer_ca,
peer_cd=peer_cd,
peer_db=peer_db,
peer_dc=peer_dc,
chan_ab=chan_ab,
chan_ac=chan_ac,
chan_ba=chan_ba,
chan_bd=chan_bd,
chan_ca=chan_ca,
chan_cd=chan_cd,
chan_db=chan_db,
chan_dc=chan_dc,
)
@staticmethod
async def prepare_invoice(
w2: MockLNWallet, # receiver
*,
amount_msat=100_000_000,
include_routing_hints=False,
) -> Tuple[LnAddr, str]:
amount_btc = amount_msat/Decimal(COIN*1000)
payment_preimage = os.urandom(32)
RHASH = sha256(payment_preimage)
info = PaymentInfo(RHASH, amount_msat, RECEIVED, PR_UNPAID)
w2.save_preimage(RHASH, payment_preimage)
w2.save_payment_info(info)
if include_routing_hints:
routing_hints = await w2._calc_routing_hints_for_invoice(amount_msat)
else:
routing_hints = []
trampoline_hints = []
for r in routing_hints:
node_id, short_channel_id, fee_base_msat, fee_proportional_millionths, cltv_expiry_delta = r[1][0]
if len(r[1])== 1 and w2.is_trampoline_peer(node_id):
trampoline_hints.append(('t', (node_id, fee_base_msat, fee_proportional_millionths, cltv_expiry_delta)))
invoice_features = w2.features.for_invoice()
if invoice_features.supports(LnFeatures.PAYMENT_SECRET_OPT):
payment_secret = derive_payment_secret_from_payment_preimage(payment_preimage)
else:
payment_secret = None
lnaddr1 = LnAddr(
paymenthash=RHASH,
amount=amount_btc,
tags=[('c', lnutil.MIN_FINAL_CLTV_EXPIRY_FOR_INVOICE),
('d', 'coffee'),
('9', invoice_features),
] + routing_hints + trampoline_hints,
payment_secret=payment_secret,
)
invoice = lnencode(lnaddr1, w2.node_keypair.privkey)
lnaddr2 = lndecode(invoice) # unlike lnaddr1, this now has a pubkey set
return lnaddr2, invoice