def test_initiator_log_directransfer_success(
raiden_chain,
token_addresses,
deposit):
token_address = token_addresses[0]
amount = int(deposit / 2.)
identifier = 7
app0, app1 = raiden_chain # pylint: disable=unbalanced-tuple-unpacking
direct_transfer(
app0,
app1,
token_address,
amount,
identifier,
)
app0_events = get_all_state_events(app0.raiden.transaction_log)
sucessful_transfers = [
event.event_object for event in app0_events
if isinstance(event.event_object, EventTransferSentSuccess)
]
assert sucessful_transfers[0] == EventTransferSentSuccess(
identifier,
amount,
app1.raiden.address,
)
def test_direct_transfer(raiden_network, token_addresses, deposit, network_wait):
token_address = token_addresses[0]
app0, app1 = raiden_network
amount = 10
chain_state = views.state_from_app(app0)
payment_network_id = app0.raiden.default_registry.address
token_network_identifier = views.get_token_network_identifier_by_token_address(
chain_state,
payment_network_id,
token_address,
)
direct_transfer(
app0,
app1,
token_network_identifier,
amount,
timeout=network_wait,
)
assert_synched_channel_state(
token_network_identifier,
app0, deposit - amount, [],
app1, deposit + amount, [],
)
def test_initiator_log_directransfer_action(
raiden_chain,
token_addresses,
deposit):
""" The action that start a direct transfer must be logged in the WAL. """
token_address = token_addresses[0]
amount = int(deposit / 2.)
identifier = 13
app0, app1 = raiden_chain # pylint: disable=unbalanced-tuple-unpacking
direct_transfer(
app0,
app1,
token_address,
amount,
identifier,
)
app0_state_changes = get_all_state_changes(app0.raiden.transaction_log)
direct_transfers = [
state_change
for _, state_change in app0_state_changes
if isinstance(state_change, ActionTransferDirect)
]
assert direct_transfers[0] == ActionTransferDirect(
identifier,
amount,
token_address,
app1.raiden.address,
)
def test_target_log_directransfer_message(
raiden_chain,
token_addresses,
deposit):
token_address = token_addresses[0]
amount = int(deposit / 2.)
identifier = 21
app0, app1 = raiden_chain # pylint: disable=unbalanced-tuple-unpacking
direct_transfer(
app0,
app1,
token_address,
amount,
identifier,
)
app1_state_changes = get_all_state_changes(app1.raiden.transaction_log)
received_transfers = [
state_change
for _, state_change in app1_state_changes
if isinstance(state_change, ReceiveTransferDirect)
]
assert received_transfers[0] == ReceiveTransferDirect(
identifier,
amount,
token_address,
app0.raiden.address,
)
def test_fullnetwork(raiden_chain):
app0, app1, app2 = raiden_chain # pylint: disable=unbalanced-tuple-unpacking
asset_address = app0.raiden.chain.default_registry.asset_addresses()[0]
amount = 80
random.seed(0)
direct_transfer(app0, app1, asset_address, amount)
# Assert default identifier is generated correctly
fchannel = channel(app0, app1, asset_address)
last_transfer = get_sent_transfer(fchannel, 0)
random.seed(0)
assert_identifier_correct(app0, asset_address, app1.raiden.address, last_transfer.identifier)
amount = 50
direct_transfer(app1, app2, asset_address, amount)
amount = 30
random.seed(0)
mediated_transfer(
app1,
app2,
asset_address,
amount
)
# Assert default identifier is generated correctly
fchannel = channel(app1, app2, asset_address)
last_transfer = get_sent_transfer(fchannel, 1)
random.seed(0)
assert_identifier_correct(app1, asset_address, app2.raiden.address, last_transfer.identifier)
def test_api_channel_events(raiden_chain):
app0, app1 = raiden_chain # pylint: disable=unbalanced-tuple-unpacking
token_address = app0.raiden.default_registry.token_addresses()[0]
channel_0_1 = channel(app0, app1, token_address)
amount = 30
direct_transfer(
app0,
app1,
token_address,
amount,
identifier=1,
)
results = RaidenAPI(app0.raiden).get_channel_events(channel_0_1.channel_address, 0)
assert len(results) == 3
max_block = 0
for idx, result in enumerate(results):
if result['block_number'] > max_block:
max_block = result['block_number']
assert max_block != 0
if idx == 2:
assert result['_event_type'] == 'EventTransferSentSuccess'
assert result['amount'] == amount
assert result['target'] == app1.raiden.address
else:
assert result['_event_type'] == b'ChannelNewBalance'
assert max_block != 0
results = RaidenAPI(app0.raiden).get_channel_events(
channel_0_1.channel_address, max_block + 1, max_block + 100
)
assert not results
def test_settled_lock(token_addresses, raiden_network, settle_timeout, reveal_timeout):
""" Any transfer following a secret revealed must update the locksroot, so
that an attacker cannot reuse a secret to double claim a lock.
"""
token = token_addresses[0]
amount = 30
app0, app1, app2, _ = raiden_network # pylint: disable=unbalanced-tuple-unpacking
address0 = app0.raiden.address
address1 = app1.raiden.address
forward_channel = channel(app0, app1, token)
back_channel = channel(app1, app0, token)
deposit0 = forward_channel.contract_balance
deposit1 = back_channel.contract_balance
token_contract = app0.raiden.chain.token(token)
balance0 = token_contract.balance_of(address0)
balance1 = token_contract.balance_of(address1)
# A pending mediated transfer
identifier = 1
expiration = app0.raiden.chain.block_number() + settle_timeout - reveal_timeout
secret = pending_mediated_transfer(
raiden_network,
token,
amount,
identifier,
expiration,
)
hashlock = sha3(secret)
# Get the proof to unlock the pending lock
secret_transfer = get_received_transfer(back_channel, 0)
lock = back_channel.partner_state.get_lock_by_hashlock(hashlock)
unlock_proof = back_channel.partner_state.compute_proof_for_lock(secret, lock)
# Update the hashlock
claim_lock(raiden_network, identifier, token, secret)
direct_transfer(app0, app1, token, amount, identifier=1)
# The direct transfer locksroot must remove the unlocked lock and update
# the transferred amount, the withdraw must fail.
balance_proof = back_channel.partner_state.balance_proof
back_channel.external_state.close(balance_proof)
with pytest.raises(Exception):
back_channel.external_state.netting_channel.withdraw(
[(unlock_proof, secret_transfer.lock.as_bytes, secret)],
)
settle_expiration = app2.raiden.chain.block_number() + settle_timeout
wait_until_block(app2.raiden.chain, settle_expiration)
back_channel.external_state.netting_channel.settle()
assert token_contract.balance_of(address0) == balance0 + deposit0 - amount * 2
assert token_contract.balance_of(address1) == balance1 + deposit1 + amount * 2
def test_cancel_transfer():
deposit = 100
asset = sha3('test_cancel_transfer')[:20]
# pylint: disable=unbalanced-tuple-unpacking
app0, app1, app2 = create_sequential_network(num_nodes=3, deposit=deposit, asset=asset)
messages = setup_messages_cb()
mlogger = MessageLogger()
assert_synched_channels(
channel(app0, app1, asset), deposit, [],
channel(app1, app0, asset), deposit, []
)
assert_synched_channels(
channel(app1, app2, asset), deposit, [],
channel(app2, app1, asset), deposit, []
)
# drain the channel app1 -> app2
amount = 80
direct_transfer(app1, app2, asset, amount)
assert_synched_channels(
channel(app0, app1, asset), deposit, [],
channel(app1, app0, asset), deposit, []
)
assert_synched_channels(
channel(app1, app2, asset), deposit - amount, [],
channel(app2, app1, asset), deposit + amount, []
)
# app1 -> app2 is the only available path and doens't have resource, app1
# needs to send CancelTransfer to app0
transfer(app0, app2, asset, 50)
assert_synched_channels(
channel(app0, app1, asset), deposit, [],
channel(app1, app0, asset), deposit, []
)
assert_synched_channels(
channel(app1, app2, asset), deposit - amount, [],
channel(app2, app1, asset), deposit + amount, []
)
assert len(messages) == 6 # DirectTransfer + MediatedTransfer + CancelTransfer + a Ack for each
app1_messages = mlogger.get_node_messages(pex(app1.raiden.address), only='sent')
assert isinstance(app1_messages[-1], CancelTransfer)
def test_refund_messages(raiden_chain, token_addresses, deposit):
# The network has the following topology:
#
# App0 <---> App1 <---> App2
app0, app1, app2 = raiden_chain # pylint: disable=unbalanced-tuple-unpacking
token_address = token_addresses[0]
payment_network_identifier = app0.raiden.default_registry.address
token_network_identifier = views.get_token_network_identifier_by_token_address(
views.state_from_app(app0),
payment_network_identifier,
token_address,
)
# Exhaust the channel App1 <-> App2 (to force the refund transfer)
exhaust_amount = deposit
direct_transfer(app1, app2, token_network_identifier, exhaust_amount, identifier=1)
refund_amount = deposit // 2
identifier = 1
async_result = app0.raiden.mediated_transfer_async(
token_network_identifier,
refund_amount,
app2.raiden.address,
identifier,
)
assert async_result.wait() is False, 'Must fail, there are no routes available'
# The transfer from app0 to app2 failed, so the balances did change.
# Since the refund is not unlocked both channels have the corresponding
# amount locked (issue #1091)
send_lockedtransfer = raiden_events_must_contain_entry(
app0.raiden,
SendLockedTransfer,
{'transfer': {'lock': {'amount': refund_amount}}},
)
assert send_lockedtransfer
send_refundtransfer = raiden_events_must_contain_entry(app1.raiden, SendRefundTransfer, {})
assert send_refundtransfer
assert_synched_channel_state(
token_network_identifier,
app0, deposit, [send_lockedtransfer.transfer.lock],
app1, deposit, [send_refundtransfer.lock],
)
# This channel was exhausted to force the refund transfer
assert_synched_channel_state(
token_network_identifier,
app1, 0, [],
app2, deposit * 2, [],
)
def test_fullnetwork(deployed_network):
app0, app1, app2 = deployed_network # pylint: disable=unbalanced-tuple-unpacking
asset_address = app0.raiden.chain.default_registry.asset_addresses()[0]
amount = 80
direct_transfer(app0, app1, asset_address, amount)
amount = 50
direct_transfer(app1, app2, asset_address, amount)
amount = 30
mediated_transfer(app1, app2, asset_address, amount)
def test_settled_lock(assets_addresses, raiden_network, settle_timeout):
""" Any transfer following a secret revealed must update the locksroot, so
that an attacker cannot reuse a secret to double claim a lock.
"""
asset = assets_addresses[0]
amount = 30
app0, app1, app2, app3 = raiden_network # pylint: disable=unbalanced-tuple-unpacking
# mediated transfer
secret = pending_mediated_transfer(raiden_network, asset, amount)
# get a proof for the pending transfer
back_channel = channel(app1, app0, asset)
secret_transfer = get_received_transfer(back_channel, 0)
merkle_proof = back_channel.our_state.locked.get_proof(secret_transfer)
# reveal the secret
register_secret(raiden_network, asset, secret)
# a new transfer to update the hashlock
direct_transfer(app0, app1, asset, amount)
forward_channel = channel(app0, app1, asset)
last_transfer = get_sent_transfer(forward_channel, 1)
# call close giving the secret for a transfer that has being revealed
back_channel.external_state.netting_channel.close(
app1.raiden.address,
last_transfer,
None
)
# check that the double unlock will failed
with pytest.raises(Exception):
back_channel.external_state.netting_channel.unlock(
app1.raiden.address,
[(merkle_proof, secret_transfer.lock.as_bytes, secret)],
)
# forward the block number to allow settle
for _ in range(settle_timeout):
app2.raiden.chain.next_block()
back_channel.external_state.netting_channel.settle()
participant0 = back_channel.external_state.netting_channel.contract.participants[app0.raiden.address]
participant1 = back_channel.external_state.netting_channel.contract.participants[app1.raiden.address]
assert participant0.netted == participant0.deposit - amount * 2
assert participant1.netted == participant1.deposit + amount * 2
def test_log_directransfer(raiden_chain, token_addresses, deposit):
"""The action that starts a direct transfer must be logged in the WAL."""
app0, app1 = raiden_chain # pylint: disable=unbalanced-tuple-unpacking
token_address = token_addresses[0]
token_network_identifier = views.get_token_network_identifier_by_token_address(
views.state_from_app(app0),
app0.raiden.default_registry.address,
token_address,
)
amount = int(deposit / 2.)
payment_identifier = 13
direct_transfer(
app0,
app1,
token_network_identifier,
amount,
payment_identifier,
)
app0_state_changes = app0.raiden.wal.storage.get_statechanges_by_identifier(
from_identifier=0,
to_identifier='latest',
)
assert must_contain_entry(app0_state_changes, ActionTransferDirect, {
'token_network_identifier': token_network_identifier,
'amount': amount,
'receiver_address': app1.raiden.address,
})
app1_state_changes = app1.raiden.wal.storage.get_statechanges_by_identifier(
from_identifier=0,
to_identifier='latest',
)
assert must_contain_entry(app1_state_changes, ReceiveTransferDirect, {
'token_network_identifier': token_network_identifier,
'payment_identifier': payment_identifier,
'balance_proof': {
'transferred_amount': amount,
'sender': app0.raiden.address,
},
})
def test_settled_lock():
""" After a lock has it's secret revealed and a transfer happened, the lock
cannot be used to net any value with the contract.
"""
deposit = 100
asset = sha3('test_settled_lock')[:20]
amount = 30
# pylint: disable=unbalanced-tuple-unpacking
apps = create_sequential_network(num_nodes=4, deposit=deposit, asset=asset)
# mediated transfer with the secret revealed
transfer(apps[0], apps[3], asset, amount)
# create the latest transfer
direct_transfer(apps[0], apps[1], asset, amount)
secret = '' # need to get the secret
attack_channel = channel(apps[2], apps[1], asset)
secret_transfer = get_received_transfer(attack_channel, 0)
last_transfer = get_received_transfer(attack_channel, 1)
nettingcontract_address = attack_channel.nettingcontract_address
# create a fake proof
merkle_proof = attack_channel.our_state.locked.get_proof(secret_transfer)
# call close giving the secret for a transfer that has being revealed
apps[1].raiden.chain.close(
asset,
nettingcontract_address,
apps[1].raiden.address,
[last_transfer],
[(merkle_proof, secret_transfer.lock, secret)],
)
# forward the block number to allow settle
for _ in range(NettingChannelContract.locked_time):
apps[2].raiden.chain.next_block()
apps[1].raiden.chain.settle(asset, nettingcontract_address)
def test_initiator_log_directransfer_success(raiden_chain, token_addresses, deposit):
app0, app1 = raiden_chain # pylint: disable=unbalanced-tuple-unpacking
token_address = token_addresses[0]
amount = int(deposit / 2.)
identifier = 7
token_network_identifier = views.get_token_network_identifier_by_token_address(
views.state_from_app(app0),
app0.raiden.default_registry.address,
token_address,
)
direct_transfer(
app0,
app1,
token_network_identifier,
amount,
identifier,
)
app0_events = app0.raiden.wal.storage.get_events_by_identifier(
from_identifier=0,
to_identifier='latest',
)
app0_all_events = [event for _, event in app0_events]
assert must_contain_entry(app0_all_events, EventTransferSentSuccess, {
'identifier': identifier,
'amount': amount,
'target': app1.raiden.address,
})
app1_state_events = app1.raiden.wal.storage.get_events_by_identifier(
from_identifier=0,
to_identifier='latest',
)
app1_all_events = [event for _, event in app1_state_events]
assert must_contain_entry(app1_all_events, EventTransferReceivedSuccess, {
'identifier': identifier,
'amount': amount,
'initiator': app0.raiden.address,
})
def test_settled_lock(token_addresses, raiden_network, settle_timeout,
reveal_timeout):
""" Any transfer following a secret revealed must update the locksroot, so
that an attacker cannot reuse a secret to double claim a lock.
"""
token = token_addresses[0]
amount = 30
app0, app1, app2, _ = raiden_network # pylint: disable=unbalanced-tuple-unpacking
address0 = app0.raiden.address
address1 = app1.raiden.address
forward_channel = channel(app0, app1, token)
back_channel = channel(app1, app0, token)
deposit0 = forward_channel.contract_balance
deposit1 = back_channel.contract_balance
token_contract = app0.raiden.chain.token(token)
balance0 = token_contract.balance_of(address0)
balance1 = token_contract.balance_of(address1)
# A pending mediated transfer
identifier = 1
expiration = app0.raiden.chain.block_number(
) + settle_timeout - reveal_timeout
secret = pending_mediated_transfer(
raiden_network,
token,
amount,
identifier,
expiration,
)
hashlock = sha3(secret)
# Get the proof to unlock the pending lock
secret_transfer = get_received_transfer(back_channel, 0)
lock = back_channel.our_state.balance_proof.get_lock_by_hashlock(hashlock)
unlock_proof = back_channel.our_state.balance_proof.compute_proof_for_lock(
secret, lock)
# Update the hashlock
claim_lock(raiden_network, token, secret)
direct_transfer(app0, app1, token, amount)
# The direct transfer locksroot must remove the unlocked lock and update
# the transferred amount, the withdraw must fail.
balance_proof = back_channel.our_state.balance_proof.balance_proof
back_channel.external_state.close(balance_proof)
with pytest.raises(Exception):
back_channel.external_state.netting_channel.withdraw(
[(unlock_proof, secret_transfer.lock.as_bytes, secret)], )
settle_expiration = app2.raiden.chain.block_number() + settle_timeout
wait_until_block(app2.raiden.chain, settle_expiration)
back_channel.external_state.netting_channel.settle()
assert token_contract.balance_of(
address0) == balance0 + deposit0 - amount * 2
assert token_contract.balance_of(
address1) == balance1 + deposit1 + amount * 2
def test_settled_lock(token_addresses, raiden_network, deposit):
""" Any transfer following a secret revealed must update the locksroot, so
hat an attacker cannot reuse a secret to double claim a lock."""
app0, app1 = raiden_network
registry_address = app0.raiden.default_registry.address
token_address = token_addresses[0]
amount = 30
token_network_identifier = views.get_token_network_identifier_by_token_address(
views.state_from_app(app0),
app0.raiden.default_registry.address,
token_address,
)
address0 = app0.raiden.address
address1 = app1.raiden.address
deposit0 = deposit
deposit1 = deposit
token_proxy = app0.raiden.chain.token(token_address)
initial_balance0 = token_proxy.balance_of(address0)
initial_balance1 = token_proxy.balance_of(address1)
# Using a pending mediated transfer because this allows us to compute the
# merkle proof
identifier = 1
secret = pending_mediated_transfer(
raiden_network,
token_network_identifier,
amount,
identifier,
)
# Save the merkle tree leaves from the pending transfer, used to test the unlock
channelstate_0_1 = get_channelstate(app0, app1, token_network_identifier)
batch_unlock = channel.get_batch_unlock(channelstate_0_1.our_state)
assert batch_unlock
claim_lock(raiden_network, identifier, token_network_identifier, secret)
# Make a new transfer
direct_transfer(app0, app1, token_network_identifier, amount, identifier=1)
RaidenAPI(app1.raiden).channel_close(
registry_address,
token_address,
app0.raiden.address,
)
waiting.wait_for_settle(
app1.raiden,
app1.raiden.default_registry.address,
token_address,
[channelstate_0_1.identifier],
app1.raiden.alarm.sleep_time,
)
netting_channel = app1.raiden.chain.payment_channel(
token_network_identifier,
channelstate_0_1.identifier,
)
# The direct transfer locksroot must not contain the unlocked lock, the
# unlock must fail.
with pytest.raises(Exception):
netting_channel.unlock(
channelstate_0_1.partner_state.address,
batch_unlock,
)
expected_balance0 = initial_balance0 + deposit0 - amount * 2
expected_balance1 = initial_balance1 + deposit1 + amount * 2
assert token_proxy.balance_of(address0) == expected_balance0
assert token_proxy.balance_of(address1) == expected_balance1
def test_automatic_dispute(raiden_network, deposit, token_addresses):
app0, app1 = raiden_network
registry_address = app0.raiden.default_registry.address
token_address = token_addresses[0]
token_network_identifier = views.get_token_network_identifier_by_token_address(
views.state_from_app(app0),
app0.raiden.default_registry.address,
token_address,
)
channel0 = get_channelstate(app0, app1, token_network_identifier)
token_proxy = app0.raiden.chain.token(channel0.token_address)
initial_balance0 = token_proxy.balance_of(app0.raiden.address)
initial_balance1 = token_proxy.balance_of(app1.raiden.address)
amount0_1 = 10
direct_transfer(
app0,
app1,
token_network_identifier,
amount0_1,
)
amount1_1 = 50
direct_transfer(
app1,
app0,
token_network_identifier,
amount1_1,
)
amount0_2 = 60
direct_transfer(
app0,
app1,
token_network_identifier,
amount0_2,
)
# Alice can only provide one of Bob's transfer, so she is incentivized to
# use the one with the largest transferred_amount.
RaidenAPI(app0.raiden).channel_close(
registry_address,
token_address,
app1.raiden.address,
)
# Bob needs to provide a transfer otherwise its netted balance will be
# wrong, so he is incentivised to use Alice's transfer with the largest
# transferred_amount.
#
# This is done automatically
# channel1.external_state.update_transfer(
# alice_second_transfer,
# )
waiting.wait_for_settle(
app0.raiden,
registry_address,
token_address,
[channel0.identifier],
app0.raiden.alarm.sleep_time,
)
# check that the channel is properly settled and that Bob's client
# automatically called updateTransfer() to reflect the actual transactions
assert token_proxy.balance_of(token_network_identifier) == 0
total0 = amount0_1 + amount0_2
total1 = amount1_1
expected_balance0 = initial_balance0 + deposit - total0 + total1
expected_balance1 = initial_balance1 + deposit + total0 - total1
assert token_proxy.balance_of(app0.raiden.address) == expected_balance0
assert token_proxy.balance_of(app1.raiden.address) == expected_balance1
def test_cancel_transfer(raiden_chain, token, deposit):
app0, app1, app2, app3 = raiden_chain # pylint: disable=unbalanced-tuple-unpacking
messages = setup_messages_cb()
mlogger = MessageLogger()
assert_synched_channels(
channel(app0, app1, token), deposit, [],
channel(app1, app0, token), deposit, []
)
assert_synched_channels(
channel(app1, app2, token), deposit, [],
channel(app2, app1, token), deposit, []
)
assert_synched_channels(
channel(app2, app3, token), deposit, [],
channel(app3, app2, token), deposit, []
)
assert_synched_channels(
channel(app0, app1, token), deposit, [],
channel(app1, app0, token), deposit, []
)
# drain the channel app1 -> app2
amount12 = 50
direct_transfer(app1, app2, token, amount12)
# drain the channel app2 -> app3
amount23 = 80
direct_transfer(app2, app3, token, amount23)
assert_synched_channels(
channel(app1, app2, token), deposit - amount12, [],
channel(app2, app1, token), deposit + amount12, []
)
assert_synched_channels(
channel(app2, app3, token), deposit - amount23, [],
channel(app3, app2, token), deposit + amount23, []
)
# app1 -> app3 is the only available path but app2 -> app3 doesnt have
# resources and needs to send a RefundTransfer down the path
transfer(app0, app3, token, amount=50, identifier=1)
assert_synched_channels(
channel(app0, app1, token), deposit, [],
channel(app1, app0, token), deposit, []
)
assert_synched_channels(
channel(app1, app2, token), deposit - amount12, [],
channel(app2, app1, token), deposit + amount12, []
)
assert_synched_channels(
channel(app2, app3, token), deposit - amount23, [],
channel(app3, app2, token), deposit + amount23, []
)
assert len(unique(messages)) == 12 # DT + DT + SMT + MT + RT + RT + ACKs
app1_messages = mlogger.get_node_messages(pex(app1.raiden.address), only='sent')
assert isinstance(app1_messages[-1], RefundTransfer)
app2_messages = mlogger.get_node_messages(pex(app2.raiden.address), only='sent')
assert isinstance(app2_messages[-1], RefundTransfer)
def test_settled_lock(token_addresses, raiden_network, deposit):
""" Any transfer following a secret revealed must update the locksroot, so
hat an attacker cannot reuse a secret to double claim a lock."""
app0, app1 = raiden_network
registry_address = app0.raiden.default_registry.address
token_address = token_addresses[0]
amount = 30
token_network_identifier = views.get_token_network_identifier_by_token_address(
views.state_from_app(app0),
app0.raiden.default_registry.address,
token_address,
)
address0 = app0.raiden.address
address1 = app1.raiden.address
deposit0 = deposit
deposit1 = deposit
token_proxy = app0.raiden.chain.token(token_address)
initial_balance0 = token_proxy.balance_of(address0)
initial_balance1 = token_proxy.balance_of(address1)
# Using a pending mediated transfer because this allows us to compute the
# merkle proof
identifier = 1
secret = pending_mediated_transfer(
raiden_network,
token_network_identifier,
amount,
identifier,
)
# Save the merkle tree leaves from the pending transfer, used to test the unlock
channelstate_0_1 = get_channelstate(app0, app1, token_network_identifier)
batch_unlock = channel.get_batch_unlock(channelstate_0_1.our_state)
assert batch_unlock
claim_lock(raiden_network, identifier, token_network_identifier, secret)
# Make a new transfer
direct_transfer(app0, app1, token_network_identifier, amount, identifier=1)
RaidenAPI(app1.raiden).channel_close(
registry_address,
token_address,
app0.raiden.address,
)
waiting.wait_for_settle(
app1.raiden,
app1.raiden.default_registry.address,
token_address,
[channelstate_0_1.identifier],
app1.raiden.alarm.sleep_time,
)
netting_channel = app1.raiden.chain.payment_channel(
token_network_identifier,
channelstate_0_1.identifier,
)
# The direct transfer locksroot must not contain the unlocked lock, the
# unlock must fail.
with pytest.raises(Exception):
netting_channel.unlock(
channelstate_0_1.partner_state.address,
batch_unlock,
)
expected_balance0 = initial_balance0 + deposit0 - amount * 2
expected_balance1 = initial_balance1 + deposit1 + amount * 2
assert token_proxy.balance_of(address0) == expected_balance0
assert token_proxy.balance_of(address1) == expected_balance1
def test_settled_lock(token_addresses, raiden_network, deposit):
""" Any transfer following a secret revealed must update the locksroot, so
that an attacker cannot reuse a secret to double claim a lock."""
app0, app1 = raiden_network
registry_address = app0.raiden.default_registry.address
token_address = token_addresses[0]
amount = 30
token_network_identifier = views.get_token_network_identifier_by_token_address(
views.state_from_app(app0),
app0.raiden.default_registry.address,
token_address,
)
address0 = app0.raiden.address
address1 = app1.raiden.address
deposit0 = deposit
deposit1 = deposit
token_proxy = app0.raiden.chain.token(token_address)
initial_balance0 = token_proxy.balance_of(address0)
initial_balance1 = token_proxy.balance_of(address1)
# Using a pending mediated transfer because this allows us to compute the
# merkle proof
identifier = 1
secret = pending_mediated_transfer(
raiden_network,
token_network_identifier,
amount,
identifier,
)
secrethash = sha3(secret)
# Compute the merkle proof for the pending transfer, and then unlock
channelstate_0_1 = get_channelstate(app0, app1, token_network_identifier)
lock = channel.get_lock(channelstate_0_1.our_state, secrethash)
unlock_proof = channel.compute_proof_for_lock(
channelstate_0_1.our_state,
secret,
lock,
)
claim_lock(raiden_network, identifier, token_network_identifier, secret)
# Make a new transfer
direct_transfer(app0, app1, token_network_identifier, amount, identifier=1)
RaidenAPI(app1.raiden).channel_close(
registry_address,
token_address,
app0.raiden.address,
)
# The direct transfer locksroot must not contain the unlocked lock, the
# withdraw must fail.
netting_channel = app1.raiden.chain.netting_channel(
channelstate_0_1.identifier)
with pytest.raises(Exception):
netting_channel.withdraw(
UnlockProofState(unlock_proof, lock.encoded, secret))
waiting.wait_for_settle(
app1.raiden,
app1.raiden.default_registry.address,
token_address,
[channelstate_0_1.identifier],
app1.raiden.alarm.wait_time,
)
expected_balance0 = initial_balance0 + deposit0 - amount * 2
expected_balance1 = initial_balance1 + deposit1 + amount * 2
assert token_proxy.balance_of(address0) == expected_balance0
assert token_proxy.balance_of(address1) == expected_balance1
def test_refund_transfer_after_2nd_hop(
raiden_chain,
number_of_nodes,
token_addresses,
deposit,
network_wait,
):
"""Test the refund transfer sent due to failure after 2nd hop"""
# Topology:
#
# 0 -> 1 -> 2 -> 3
#
app0, app1, app2, app3 = raiden_chain
token_address = token_addresses[0]
payment_network_identifier = app0.raiden.default_registry.address
token_network_identifier = views.get_token_network_identifier_by_token_address(
views.state_from_app(app0),
payment_network_identifier,
token_address,
)
# make a transfer to test the path app0 -> app1 -> app2 -> app3
identifier_path = 1
amount_path = 1
mediated_transfer(
app0,
app3,
token_network_identifier,
amount_path,
identifier_path,
timeout=network_wait * number_of_nodes,
)
# drain the channel app2 -> app3
identifier_drain = 2
amount_drain = deposit * 8 // 10
direct_transfer(
app2,
app3,
token_network_identifier,
amount_drain,
identifier_drain,
timeout=network_wait,
)
# wait for the nodes to sync
gevent.sleep(0.2)
assert_synched_channel_state(
token_network_identifier,
app0, deposit - amount_path, [],
app1, deposit + amount_path, [],
)
assert_synched_channel_state(
token_network_identifier,
app1, deposit - amount_path, [],
app2, deposit + amount_path, [],
)
assert_synched_channel_state(
token_network_identifier,
app2, deposit - amount_path - amount_drain, [],
app3, deposit + amount_path + amount_drain, [],
)
# app0 -> app1 -> app2 > app3 is the only available path, but the channel
# app2 -> app3 doesn't have capacity, so a refund will be sent on
# app2 -> app1 -> app0
identifier_refund = 3
amount_refund = 50
async_result = app0.raiden.mediated_transfer_async(
token_network_identifier,
amount_refund,
app3.raiden.address,
identifier_refund,
)
assert async_result.wait() is False, 'there is no path with capacity, the transfer must fail'
gevent.sleep(0.2)
# Lock structures with the correct amount
send_locked1 = raiden_events_must_contain_entry(
app0.raiden,
SendLockedTransfer,
{'transfer': {'lock': {'amount': amount_refund}}},
)
assert send_locked1
send_refund1 = raiden_events_must_contain_entry(app1.raiden, SendRefundTransfer, {})
assert send_refund1
lock1 = send_locked1.transfer.lock
refund_lock1 = send_refund1.lock
assert lock1.amount == refund_lock1.amount
assert lock1.secrethash == refund_lock1.secrethash
send_locked2 = raiden_events_must_contain_entry(
app1.raiden,
SendLockedTransfer,
{'transfer': {'lock': {'amount': amount_refund}}},
)
assert send_locked2
send_refund2 = raiden_events_must_contain_entry(app2.raiden, SendRefundTransfer, {})
assert send_refund2
lock2 = send_locked2.transfer.lock
refund_lock2 = send_refund2.lock
assert lock2.amount == refund_lock2.amount
assert lock2.secrethash
assert lock2.expiration
# channels have the amount locked because of the refund message
assert_synched_channel_state(
token_network_identifier,
app0, deposit - amount_path, [lockstate_from_lock(lock1)],
app1, deposit + amount_path, [lockstate_from_lock(refund_lock1)],
)
assert_synched_channel_state(
token_network_identifier,
app1, deposit - amount_path, [lockstate_from_lock(lock2)],
app2, deposit + amount_path, [lockstate_from_lock(refund_lock2)],
)
assert_synched_channel_state(
token_network_identifier,
app2, deposit - amount_path - amount_drain, [],
app3, deposit + amount_path + amount_drain, [],
)
def test_fullnetwork(raiden_chain, settle_timeout, reveal_timeout):
app0, app1, app2, app3 = raiden_chain # pylint: disable=unbalanced-tuple-unpacking
token_address = app0.raiden.chain.default_registry.token_addresses()[0]
channel_0_1 = channel(app0, app1, token_address)
channel_1_2 = channel(app1, app2, token_address)
channel_3_2 = channel(app3, app2, token_address)
channel_0_3 = channel(app0, app3, token_address)
amount = 80
direct_transfer(app0, app1, token_address, amount)
last_transfer = get_sent_transfer(channel_0_1, 0)
assert last_transfer.transferred_amount == 80
amount = 50
direct_transfer(app1, app2, token_address, amount)
last_transfer = get_sent_transfer(channel_1_2, 0)
assert last_transfer.transferred_amount == 50
amount = 30
mediated_transfer(app0, app2, token_address, amount)
last_transfer = get_sent_transfer(channel_0_1, 0)
assert isinstance(last_transfer, DirectTransfer)
initiator_transfer = get_sent_transfer(channel_0_3, 0)
mediator_transfer = get_sent_transfer(channel_3_2, 0)
assert initiator_transfer.identifier == mediator_transfer.identifier
assert initiator_transfer.lock.amount == amount
assert mediator_transfer.lock.amount == amount
# Now let's query the WAL to see if the state changes were logged as expected
app0_state_changes = [
change[1]
for change in app0.raiden.transaction_log.get_all_state_changes()
if not isinstance(change[1], Block)
]
app1_state_changes = [
change[1]
for change in app1.raiden.transaction_log.get_all_state_changes()
if not isinstance(change[1], Block)
]
app2_state_changes = [
change[1]
for change in app2.raiden.transaction_log.get_all_state_changes()
if not isinstance(change[1], Block)
]
app3_state_changes = [
change[1]
for change in app3.raiden.transaction_log.get_all_state_changes()
if not isinstance(change[1], Block)
]
# app1 does not take part in the mediated transfer.
assert app1_state_changes == list()
# app0 initiates the mediated_transfer
assert len(app0_state_changes) == 3
assert isinstance(app0_state_changes[0], ActionInitInitiator)
assert app0_state_changes[0].our_address == app0.raiden.address
assert app0_state_changes[0].transfer.amount == amount
assert app0_state_changes[0].transfer.token == token_address
assert app0_state_changes[0].transfer.initiator == app0.raiden.address
assert app0_state_changes[0].transfer.target == app2.raiden.address
# The ActionInitInitiator state change does not have the following fields populated.
# They get populated via an event during the processing of the state change inside
# this function: mediated_transfer.mediated_transfer.initiator.try_new_route()
assert app0_state_changes[0].transfer.expiration is None
assert app0_state_changes[0].transfer.hashlock is None
assert app0_state_changes[0].transfer.secret is None
# We should have two available routes
assert len(app0_state_changes[0].routes.available_routes) == 2
assert len(app0_state_changes[0].routes.ignored_routes) == 0
assert len(app0_state_changes[0].routes.refunded_routes) == 0
assert len(app0_state_changes[0].routes.canceled_routes) == 0
# Of these 2 the state machine will in the future choose the one with the most
# available balance
not_taken_route = RouteState(
state='opened',
node_address=app1.raiden.address,
channel_address=channel_0_1.channel_address,
available_balance=1048496,
settle_timeout=settle_timeout,
reveal_timeout=reveal_timeout,
closed_block=None,
)
taken_route = RouteState(
state='opened',
node_address=app3.raiden.address,
channel_address=channel_0_3.channel_address,
available_balance=1048576,
settle_timeout=settle_timeout,
reveal_timeout=reveal_timeout,
closed_block=None,
)
assert taken_route in app0_state_changes[0].routes.available_routes
assert not_taken_route in app0_state_changes[0].routes.available_routes
# app0 will also receive a secret request from the target
assert isinstance(app0_state_changes[1], ReceiveSecretRequest)
assert app0_state_changes[1].amount == amount
assert app0_state_changes[1].sender == app2.raiden.address
hashlock = app0_state_changes[1].hashlock
# app0 will also receive a secret reveal from the immediate neighbour
assert isinstance(app0_state_changes[2], ReceiveSecretReveal)
assert app0_state_changes[2].sender == app3.raiden.address
secret = app0_state_changes[2].secret
assert sha3(secret) == hashlock
# app3 is the mediator
assert isinstance(app3_state_changes[0], ActionInitMediator)
assert app3_state_changes[0].our_address == app3.raiden.address
# We should have only 1 available route from mediator to target
from_route = RouteState(
state='opened',
node_address=app0.raiden.address,
channel_address=channel_0_3.channel_address,
available_balance=1048576,
settle_timeout=settle_timeout,
reveal_timeout=reveal_timeout,
closed_block=None,
)
to_route = RouteState(
state='opened',
node_address=app2.raiden.address,
channel_address=channel_3_2.channel_address,
available_balance=1048576,
settle_timeout=settle_timeout,
reveal_timeout=reveal_timeout,
closed_block=None,
)
assert app3_state_changes[0].from_route == from_route
assert len(app3_state_changes[0].routes.available_routes) == 1
assert len(app3_state_changes[0].routes.ignored_routes) == 0
assert len(app3_state_changes[0].routes.refunded_routes) == 0
assert len(app3_state_changes[0].routes.canceled_routes) == 0
assert app3_state_changes[0].routes.available_routes[0] == to_route
# check the from_transfer is correct
assert app3_state_changes[0].from_transfer.amount == amount
assert app3_state_changes[0].from_transfer.hashlock == hashlock
assert app3_state_changes[0].from_transfer.token == token_address
assert app3_state_changes[0].from_transfer.initiator == app0.raiden.address
assert app3_state_changes[0].from_transfer.target == app2.raiden.address
# The mediator should have also received a SecretReveal from the target
assert isinstance(app3_state_changes[1], ReceiveSecretReveal)
assert app3_state_changes[1].sender == app2.raiden.address
assert app3_state_changes[1].secret == secret
# If the mediator received any more it is from the initiator
# TODO: Figure out why we may get two times the secret reveal from the initiator
for state_change in app3_state_changes[2:]:
assert isinstance(state_change, ReceiveSecretReveal)
assert state_change.sender == app0.raiden.address
assert state_change.secret == secret
# app2 is the target of the mediated transfer
assert len(app2_state_changes
) == 4 # We get 2 secret reveals from the mediator. WHY?
assert isinstance(app2_state_changes[0], ActionInitTarget)
assert app2_state_changes[0].our_address == app2.raiden.address
# check the route the transfer came from
from_route = RouteState(
state='opened',
node_address=app3.raiden.address,
channel_address=channel_3_2.channel_address,
available_balance=1048576,
settle_timeout=settle_timeout,
reveal_timeout=reveal_timeout,
closed_block=None,
)
assert app2_state_changes[0].from_route == from_route
# check the from_transfer is correct
assert app2_state_changes[0].from_transfer.amount == amount
assert app2_state_changes[0].from_transfer.hashlock == hashlock
assert app2_state_changes[0].from_transfer.token == token_address
assert app2_state_changes[0].from_transfer.initiator == app0.raiden.address
assert app2_state_changes[0].from_transfer.target == app2.raiden.address
# We also get secret reveals from the initiator and the mediator.
assert isinstance(app2_state_changes[1], ReceiveSecretReveal)
assert app2_state_changes[1].sender == app0.raiden.address
assert app2_state_changes[1].secret == secret
# TODO: Figure out why we get two times the Secret Reveal from the mediator
assert isinstance(app2_state_changes[2], ReceiveSecretReveal)
assert app2_state_changes[2].sender == app3.raiden.address
assert app2_state_changes[2].secret == secret
assert isinstance(app2_state_changes[3], ReceiveSecretReveal)
assert app2_state_changes[3].sender == app3.raiden.address
assert app2_state_changes[3].secret == secret
def test_cancel_transfer(raiden_chain, token_addresses, deposit):
""" A failed transfer must send a refund back.
TODO:
- Unlock the token on refund #1091
- Clear the merkletree and update the locked amount #193
- Remove the refund message type #490
"""
# Topology:
#
# 0 -> 1 -> 2
#
app0, app1, app2 = raiden_chain # pylint: disable=unbalanced-tuple-unpacking
token = token_addresses[0]
assert_synched_channels(
channel(app0, app1, token), deposit, [],
channel(app1, app0, token), deposit, []
)
assert_synched_channels(
channel(app1, app2, token), deposit, [],
channel(app2, app1, token), deposit, []
)
# make a transfer to test the path app0 -> app1 -> app2
identifier_path = 1
amount_path = 1
transfer(app0, app2, token, amount_path, identifier_path)
# drain the channel app1 -> app2
identifier_drain = 2
amount_drain = int(deposit * 0.8)
direct_transfer(app1, app2, token, amount_drain, identifier_drain)
# wait for the nodes to sync
gevent.sleep(0.2)
assert_synched_channels(
channel(app0, app1, token), deposit - amount_path, [],
channel(app1, app0, token), deposit + amount_path, []
)
assert_synched_channels(
channel(app1, app2, token), deposit - amount_path - amount_drain, [],
channel(app2, app1, token), deposit + amount_path + amount_drain, []
)
# app0 -> app1 -> app2 is the only available path but the channel app1 ->
# app2 doesnt have resources and needs to send a RefundTransfer down the
# path
identifier_refund = 3
amount_refund = 50
async_result = app0.raiden.mediated_transfer_async(
token,
amount_refund,
app2.raiden.address,
identifier_refund,
)
assert async_result.wait() is False, 'there is no path with capacity, the transfer must fail'
gevent.sleep(0.2)
# A lock structure with the correct amount
app0_messages = app0.raiden.protocol.transport.get_sent_messages(app0.raiden.address)
mediated_message = list(
message
for message in app0_messages
if isinstance(message, MediatedTransfer) and message.target == app2.raiden.address
)[-1]
assert mediated_message
app1_messages = app1.raiden.protocol.transport.get_sent_messages(app1.raiden.address)
refund_message = next(
message
for message in app1_messages
if isinstance(message, RefundTransfer) and message.recipient == app0.raiden.address
)
assert refund_message
assert mediated_message.lock.amount == refund_message.lock.amount
assert mediated_message.lock.hashlock == refund_message.lock.hashlock
assert mediated_message.lock.expiration > refund_message.lock.expiration
# Both channels have the amount locked because of the refund message
assert_synched_channels(
channel(app0, app1, token), deposit - amount_path, [refund_message.lock],
channel(app1, app0, token), deposit + amount_path, [mediated_message.lock],
)
assert_synched_channels(
channel(app1, app2, token), deposit - amount_path - amount_drain, [],
channel(app2, app1, token), deposit + amount_path + amount_drain, []
)
def test_fullnetwork(
raiden_chain,
token_addresses,
deposit,
settle_timeout,
reveal_timeout):
# pylint: disable=too-many-locals,too-many-statements
# The network has the following topology:
#
# App0 <---> App1
# ^ ^
# | |
# v v
# App3 <---> App2
token_address = token_addresses[0]
app0, app1, app2, app3 = raiden_chain # pylint: disable=unbalanced-tuple-unpacking
channel_0_1 = channel(app0, app1, token_address)
channel_3_2 = channel(app3, app2, token_address)
channel_0_3 = channel(app0, app3, token_address)
# Exhaust the channel deposit (to force the mediated transfer to go backwards)
amount = deposit
direct_transfer(app0, app1, token_address, amount, identifier=1)
assert get_sent_transfer(channel_0_1, 0).transferred_amount == amount
amount = int(deposit / 2.)
mediated_transfer(
app0,
app2,
token_address,
amount
)
gevent.sleep(0.5)
# This is the only possible path, the transfer must go backwards
assert_path_mediated_transfer(
get_sent_transfer(channel_0_3, 0),
get_sent_transfer(channel_3_2, 0),
)
app0_state_changes = [
change[1]
for change in get_all_state_changes(app0.raiden.transaction_log)
]
app0_events = [
event.event_object
for event in get_all_state_events(app0.raiden.transaction_log)
]
secret = None
for event in app0_events:
if isinstance(event, SendRevealSecret):
secret = event.secret
assert secret is not None
hashlock = sha3(secret)
# app0 initiates the direct transfer and mediated_transfer
assert must_contain_entry(app0_state_changes, ActionInitInitiator, {
'our_address': app0.raiden.address,
'transfer': {
'amount': amount,
'token': token_address,
'initiator': app0.raiden.address,
'target': app2.raiden.address,
'expiration': None,
'hashlock': None,
'secret': None,
}
})
# Of these 2 the state machine will in the future choose the one with the most
# available balance
not_taken_route = RouteState(
state='opened',
node_address=app1.raiden.address,
channel_address=channel_0_1.channel_address,
available_balance=deposit,
settle_timeout=settle_timeout,
reveal_timeout=reveal_timeout,
closed_block=None,
)
taken_route = RouteState(
state='opened',
node_address=app3.raiden.address,
channel_address=channel_0_3.channel_address,
available_balance=deposit,
settle_timeout=settle_timeout,
reveal_timeout=reveal_timeout,
closed_block=None,
)
for state_change in app0_state_changes:
if isinstance(state_change, ActionInitMediator):
assert taken_route in state_change.routes.available_routes
assert not_taken_route not in state_change.routes.available_routes
# app1 received one direct transfers
app1_state_changes = [
change[1]
for change in get_all_state_changes(app1.raiden.transaction_log)
]
assert must_contain_entry(app1_state_changes, ReceiveBalanceProof, {})
assert must_contain_entry(app1_state_changes, ReceiveTransferDirect, {})
app2_state_changes = [
change[1]
for change in get_all_state_changes(app2.raiden.transaction_log)
]
assert must_contain_entry(app2_state_changes, ActionInitTarget, {
'our_address': app2.raiden.address,
'from_route': {
'state': 'opened',
'node_address': app3.raiden.address,
'channel_address': channel_3_2.channel_address,
'available_balance': deposit,
'settle_timeout': settle_timeout,
'reveal_timeout': reveal_timeout,
'closed_block': None
},
'from_transfer': {
'amount': amount,
'hashlock': hashlock,
'token': token_address,
'initiator': app0.raiden.address,
'target': app2.raiden.address,
}
})
assert must_contain_entry(app2_state_changes, ReceiveSecretReveal, {
'sender': app0.raiden.address,
'secret': secret,
})
assert must_contain_entry(app2_state_changes, ReceiveSecretReveal, {
'sender': app3.raiden.address,
'secret': secret,
})
app2_events = [
event.event_object
for event in get_all_state_events(app2.raiden.transaction_log)
]
assert must_contain_entry(app2_events, SendSecretRequest, {
'amount': amount,
'hashlock': hashlock,
'receiver': app0.raiden.address,
})
assert must_contain_entry(app2_events, SendRevealSecret, {
'token': token_address,
'secret': secret,
'receiver': app3.raiden.address,
'sender': app2.raiden.address,
})
assert must_contain_entry(app0_state_changes, ReceiveSecretRequest, {
'amount': amount,
'sender': app2.raiden.address,
'hashlock': hashlock,
})
assert must_contain_entry(app0_state_changes, ReceiveSecretReveal, {
'sender': app3.raiden.address,
'secret': secret,
})
assert must_contain_entry(app0_events, EventTransferSentSuccess, {})
assert must_contain_entry(app0_events, SendMediatedTransfer, {
'token': token_address,
'amount': amount,
'hashlock': hashlock,
'initiator': app0.raiden.address,
'target': app2.raiden.address,
'receiver': app3.raiden.address,
})
assert must_contain_entry(app0_events, SendRevealSecret, {
'secret': secret,
'token': token_address,
'receiver': app2.raiden.address,
'sender': app0.raiden.address,
})
assert must_contain_entry(app0_events, SendBalanceProof, {
'token': token_address,
'channel_address': channel_0_3.channel_address,
'receiver': app3.raiden.address,
'secret': secret,
})
assert must_contain_entry(app0_events, EventTransferSentSuccess, {})
assert must_contain_entry(app0_events, EventUnlockSuccess, {
'hashlock': hashlock,
})
app3_state_changes = [
change[1]
for change in get_all_state_changes(app3.raiden.transaction_log)
]
assert must_contain_entry(app3_state_changes, ActionInitMediator, {
'our_address': app3.raiden.address,
'from_route': {
'state': 'opened',
'node_address': app0.raiden.address,
'channel_address': channel_0_3.channel_address,
'available_balance': deposit,
'settle_timeout': settle_timeout,
'reveal_timeout': reveal_timeout,
'closed_block': None,
},
'from_transfer': {
'amount': amount,
'hashlock': hashlock,
'token': token_address,
'initiator': app0.raiden.address,
'target': app2.raiden.address,
}
})
assert must_contain_entry(app3_state_changes, ReceiveSecretReveal, {
'sender': app2.raiden.address,
'secret': secret,
})
assert must_contain_entry(app3_state_changes, ReceiveSecretReveal, {
'sender': app2.raiden.address,
'secret': secret,
})
app3_events = [
event.event_object
for event in get_all_state_events(app3.raiden.transaction_log)
]
assert must_contain_entry(app3_events, SendMediatedTransfer, {
'token': token_address,
'amount': amount,
'hashlock': hashlock,
'initiator': app0.raiden.address,
'target': app2.raiden.address,
'receiver': app2.raiden.address,
})
assert must_contain_entry(app3_events, SendRevealSecret, {
'secret': secret,
'token': token_address,
'receiver': app0.raiden.address,
'sender': app3.raiden.address,
})
assert must_contain_entry(app3_events, SendBalanceProof, {
'token': token_address,
'channel_address': channel_3_2.channel_address,
'receiver': app2.raiden.address,
'secret': secret,
})
assert must_contain_entry(app3_events, EventUnlockSuccess, {})
def test_automatic_dispute(raiden_network, deposit, token_addresses):
app0, app1 = raiden_network
registry_address = app0.raiden.default_registry.address
token_address = token_addresses[0]
token_network_identifier = views.get_token_network_identifier_by_token_address(
views.state_from_app(app0),
app0.raiden.default_registry.address,
token_address,
)
channel0 = get_channelstate(app0, app1, token_network_identifier)
token_proxy = app0.raiden.chain.token(channel0.token_address)
initial_balance0 = token_proxy.balance_of(app0.raiden.address)
initial_balance1 = token_proxy.balance_of(app1.raiden.address)
amount0_1 = 10
direct_transfer(
app0,
app1,
token_network_identifier,
amount0_1,
)
amount1_1 = 50
direct_transfer(
app1,
app0,
token_network_identifier,
amount1_1,
)
amount0_2 = 60
direct_transfer(
app0,
app1,
token_network_identifier,
amount0_2,
)
# Alice can only provide one of Bob's transfer, so she is incentivized to
# use the one with the largest transferred_amount.
RaidenAPI(app0.raiden).channel_close(
registry_address,
token_address,
app1.raiden.address,
)
# Bob needs to provide a transfer otherwise its netted balance will be
# wrong, so he is incentivised to use Alice's transfer with the largest
# transferred_amount.
#
# This is done automatically
# channel1.external_state.update_transfer(
# alice_second_transfer,
# )
waiting.wait_for_settle(
app0.raiden,
registry_address,
token_address,
[channel0.identifier],
app0.raiden.alarm.sleep_time,
)
# check that the channel is properly settled and that Bob's client
# automatically called updateTransfer() to reflect the actual transactions
assert token_proxy.balance_of(token_network_identifier) == 0
total0 = amount0_1 + amount0_2
total1 = amount1_1
expected_balance0 = initial_balance0 + deposit - total0 + total1
expected_balance1 = initial_balance1 + deposit + total0 - total1
assert token_proxy.balance_of(app0.raiden.address) == expected_balance0
assert token_proxy.balance_of(app1.raiden.address) == expected_balance1
def test_settled_lock(token_addresses, raiden_network, deposit):
""" Any transfer following a secret reveal must update the locksroot, so
that an attacker cannot reuse a secret to double claim a lock.
"""
app0, app1 = raiden_network
registry_address = app0.raiden.default_registry.address
token_address = token_addresses[0]
amount = 30
token_network_identifier = views.get_token_network_identifier_by_token_address(
views.state_from_app(app0),
app0.raiden.default_registry.address,
token_address,
)
hold_event_handler = HoldOffChainSecretRequest()
app1.raiden.raiden_event_handler = hold_event_handler
address0 = app0.raiden.address
address1 = app1.raiden.address
deposit0 = deposit
deposit1 = deposit
token_proxy = app0.raiden.chain.token(token_address)
initial_balance0 = token_proxy.balance_of(address0)
initial_balance1 = token_proxy.balance_of(address1)
identifier = 1
target = app1.raiden.address
secret = sha3(target)
secrethash = sha3(secret)
secret_available = hold_event_handler.hold_secretrequest_for(
secrethash=secrethash)
app0.raiden.start_mediated_transfer_with_secret(
token_network_identifier,
amount,
target,
identifier,
secret,
)
secret_available.wait() # wait for the messages to be exchanged
# Save the merkle tree leaves from the pending transfer, used to test the unlock
channelstate_0_1 = get_channelstate(app0, app1, token_network_identifier)
batch_unlock = channel.get_batch_unlock(channelstate_0_1.our_state)
assert batch_unlock
hold_event_handler.release_secretrequest_for(
app1.raiden,
secrethash,
)
direct_transfer(
app0,
app1,
token_network_identifier,
amount,
identifier=2,
)
RaidenAPI(app1.raiden).channel_close(
registry_address,
token_address,
app0.raiden.address,
)
waiting.wait_for_settle(
app1.raiden,
app1.raiden.default_registry.address,
token_address,
[channelstate_0_1.identifier],
app1.raiden.alarm.sleep_time,
)
netting_channel = app1.raiden.chain.payment_channel(
token_network_identifier,
channelstate_0_1.identifier,
)
# The direct transfer locksroot must not contain the unlocked lock, the
# unlock must fail.
with pytest.raises(Exception):
netting_channel.unlock(
channelstate_0_1.partner_state.address,
batch_unlock,
)
expected_balance0 = initial_balance0 + deposit0 - amount * 2
expected_balance1 = initial_balance1 + deposit1 + amount * 2
assert token_proxy.balance_of(address0) == expected_balance0
assert token_proxy.balance_of(address1) == expected_balance1
def test_refund_transfer_after_2nd_hop(
raiden_chain,
number_of_nodes,
token_addresses,
deposit,
network_wait,
):
"""Test the refund transfer sent due to failure after 2nd hop"""
# Topology:
#
# 0 -> 1 -> 2 -> 3
#
app0, app1, app2, app3 = raiden_chain
token_address = token_addresses[0]
payment_network_identifier = app0.raiden.default_registry.address
token_network_identifier = views.get_token_network_identifier_by_token_address(
views.state_from_app(app0),
payment_network_identifier,
token_address,
)
# make a transfer to test the path app0 -> app1 -> app2 -> app3
identifier_path = 1
amount_path = 1
mediated_transfer(
app0,
app3,
token_network_identifier,
amount_path,
identifier_path,
timeout=network_wait * number_of_nodes,
)
# drain the channel app2 -> app3
identifier_drain = 2
amount_drain = deposit * 8 // 10
direct_transfer(
app2,
app3,
token_network_identifier,
amount_drain,
identifier_drain,
timeout=network_wait,
)
# wait for the nodes to sync
gevent.sleep(0.2)
assert_synched_channel_state(
token_network_identifier,
app0,
deposit - amount_path,
[],
app1,
deposit + amount_path,
[],
)
assert_synched_channel_state(
token_network_identifier,
app1,
deposit - amount_path,
[],
app2,
deposit + amount_path,
[],
)
assert_synched_channel_state(
token_network_identifier,
app2,
deposit - amount_path - amount_drain,
[],
app3,
deposit + amount_path + amount_drain,
[],
)
# app0 -> app1 -> app2 > app3 is the only available path, but the channel
# app2 -> app3 doesn't have capacity, so a refund will be sent on
# app2 -> app1 -> app0
identifier_refund = 3
amount_refund = 50
async_result = app0.raiden.mediated_transfer_async(
token_network_identifier,
amount_refund,
app3.raiden.address,
identifier_refund,
)
assert async_result.wait(
) is False, 'there is no path with capacity, the transfer must fail'
gevent.sleep(0.2)
# Lock structures with the correct amount
send_locked1 = raiden_events_must_contain_entry(
app0.raiden,
SendLockedTransfer,
{'transfer': {
'lock': {
'amount': amount_refund
}
}},
)
assert send_locked1
send_refund1 = raiden_events_must_contain_entry(app1.raiden,
SendRefundTransfer, {})
assert send_refund1
lock1 = send_locked1.transfer.lock
refund_lock1 = send_refund1.lock
assert lock1.amount == refund_lock1.amount
assert lock1.secrethash == refund_lock1.secrethash
send_locked2 = raiden_events_must_contain_entry(
app1.raiden,
SendLockedTransfer,
{'transfer': {
'lock': {
'amount': amount_refund
}
}},
)
assert send_locked2
send_refund2 = raiden_events_must_contain_entry(app2.raiden,
SendRefundTransfer, {})
assert send_refund2
lock2 = send_locked2.transfer.lock
refund_lock2 = send_refund2.lock
assert lock2.amount == refund_lock2.amount
assert lock2.secrethash
assert lock2.expiration
# channels have the amount locked because of the refund message
assert_synched_channel_state(
token_network_identifier,
app0,
deposit - amount_path,
[lockstate_from_lock(lock1)],
app1,
deposit + amount_path,
[lockstate_from_lock(refund_lock1)],
)
assert_synched_channel_state(
token_network_identifier,
app1,
deposit - amount_path,
[lockstate_from_lock(lock2)],
app2,
deposit + amount_path,
[lockstate_from_lock(refund_lock2)],
)
assert_synched_channel_state(
token_network_identifier,
app2,
deposit - amount_path - amount_drain,
[],
app3,
deposit + amount_path + amount_drain,
[],
)
def test_refund_transfer(raiden_chain, number_of_nodes, token_addresses, deposit, network_wait):
"""A failed transfer must send a refund back.
TODO:
- Unlock the token on refund #1091
- Clear the merkletree and update the locked amount #193
- Remove the refund message type #490"""
# Topology:
#
# 0 -> 1 -> 2
#
app0, app1, app2 = raiden_chain
token_address = token_addresses[0]
payment_network_identifier = app0.raiden.default_registry.address
token_network_identifier = views.get_token_network_identifier_by_token_address(
views.state_from_app(app0),
payment_network_identifier,
token_address,
)
# make a transfer to test the path app0 -> app1 -> app2
identifier_path = 1
amount_path = 1
mediated_transfer(
app0,
app2,
token_network_identifier,
amount_path,
identifier_path,
timeout=network_wait * number_of_nodes,
)
# drain the channel app1 -> app2
identifier_drain = 2
amount_drain = deposit * 8 // 10
direct_transfer(
app1,
app2,
token_network_identifier,
amount_drain,
identifier_drain,
timeout=network_wait,
)
# wait for the nodes to sync
gevent.sleep(0.2)
assert_synched_channel_state(
token_network_identifier,
app0, deposit - amount_path, [],
app1, deposit + amount_path, [],
)
assert_synched_channel_state(
token_network_identifier,
app1, deposit - amount_path - amount_drain, [],
app2, deposit + amount_path + amount_drain, [],
)
# app0 -> app1 -> app2 is the only available path, but the channel app1 ->
# app2 doesn't have capacity, so a refund will be sent on app1 -> app0
identifier_refund = 3
amount_refund = 50
async_result = app0.raiden.mediated_transfer_async(
token_network_identifier,
amount_refund,
app2.raiden.address,
identifier_refund,
)
assert async_result.wait() is False, 'there is no path with capacity, the transfer must fail'
gevent.sleep(0.2)
# A lock structure with the correct amount
send_locked = raiden_events_must_contain_entry(
app0.raiden,
SendLockedTransfer,
{'transfer': {'lock': {'amount': amount_refund}}},
)
assert send_locked
send_refund = raiden_events_must_contain_entry(app1.raiden, SendRefundTransfer, {})
assert send_refund
lock = send_locked.transfer.lock
refund_lock = send_refund.lock
assert lock.amount == refund_lock.amount
assert lock.secrethash
assert lock.expiration
# Both channels have the amount locked because of the refund message
assert_synched_channel_state(
token_network_identifier,
app0, deposit - amount_path, [lockstate_from_lock(lock)],
app1, deposit + amount_path, [lockstate_from_lock(refund_lock)],
)
assert_synched_channel_state(
token_network_identifier,
app1, deposit - amount_path - amount_drain, [],
app2, deposit + amount_path + amount_drain, [],
)
def test_refund_transfer(raiden_chain, token_addresses, deposit, network_wait):
"""A failed transfer must send a refund back.
TODO:
- Unlock the token on refund #1091
- Clear the merkletree and update the locked amount #193
- Remove the refund message type #490"""
# Topology:
#
# 0 -> 1 -> 2
#
app0, app1, app2 = raiden_chain
token_address = token_addresses[0]
# make a transfer to test the path app0 -> app1 -> app2
identifier_path = 1
amount_path = 1
mediated_transfer(
app0,
app2,
token_address,
amount_path,
identifier_path,
timeout=network_wait,
)
# drain the channel app1 -> app2
identifier_drain = 2
amount_drain = deposit * 8 // 10
direct_transfer(
app1,
app2,
token_address,
amount_drain,
identifier_drain,
timeout=network_wait,
)
# wait for the nodes to sync
gevent.sleep(0.2)
assert_synched_channel_state(
token_address,
app0, deposit - amount_path, [],
app1, deposit + amount_path, [],
)
assert_synched_channel_state(
token_address,
app1, deposit - amount_path - amount_drain, [],
app2, deposit + amount_path + amount_drain, [],
)
# app0 -> app1 -> app2 is the only available path, but the channel app1 ->
# app2 doesn't have capacity, so a refund will be sent on app1 -> app0
identifier_refund = 3
amount_refund = 50
async_result = app0.raiden.mediated_transfer_async(
token_address,
amount_refund,
app2.raiden.address,
identifier_refund,
)
assert async_result.wait() is False, 'there is no path with capacity, the transfer must fail'
gevent.sleep(0.2)
# A lock structure with the correct amount
app0_messages = app0.raiden.protocol.transport.get_sent_messages(app0.raiden.address)
mediated_message = list(
message
for message in app0_messages
if isinstance(message, MediatedTransfer) and message.target == app2.raiden.address
)[-1]
assert mediated_message
app1_messages = app1.raiden.protocol.transport.get_sent_messages(app1.raiden.address)
refund_message = next(
message
for message in app1_messages
if isinstance(message, RefundTransfer) and message.recipient == app0.raiden.address
)
assert refund_message
assert mediated_message.lock.amount == refund_message.lock.amount
assert mediated_message.lock.hashlock == refund_message.lock.hashlock
assert mediated_message.lock.expiration > refund_message.lock.expiration
# Both channels have the amount locked because of the refund message
assert_synched_channel_state(
token_address,
app0, deposit - amount_path, [lockstate_from_lock(mediated_message.lock)],
app1, deposit + amount_path, [lockstate_from_lock(refund_message.lock)],
)
assert_synched_channel_state(
token_address,
app1, deposit - amount_path - amount_drain, [],
app2, deposit + amount_path + amount_drain, [],
)
def test_refund_messages(raiden_chain, token_addresses, deposit):
# The network has the following topology:
#
# App0 <---> App1 <---> App2
app0, app1, app2 = raiden_chain # pylint: disable=unbalanced-tuple-unpacking
token_address = token_addresses[0]
payment_network_identifier = app0.raiden.default_registry.address
token_network_identifier = views.get_token_network_identifier_by_token_address(
views.state_from_app(app0),
payment_network_identifier,
token_address,
)
# Exhaust the channel App1 <-> App2 (to force the refund transfer)
exhaust_amount = deposit
direct_transfer(app1,
app2,
token_network_identifier,
exhaust_amount,
identifier=1)
refund_amount = deposit // 2
identifier = 1
async_result = app0.raiden.mediated_transfer_async(
token_network_identifier,
refund_amount,
app2.raiden.address,
identifier,
)
assert async_result.wait(
) is False, 'Must fail, there are no routes available'
# The transfer from app0 to app2 failed, so the balances did change.
# Since the refund is not unlocked both channels have the corresponding
# amount locked (issue #1091)
send_lockedtransfer = raiden_events_must_contain_entry(
app0.raiden,
SendLockedTransfer,
{'transfer': {
'lock': {
'amount': refund_amount
}
}},
)
assert send_lockedtransfer
send_refundtransfer = raiden_events_must_contain_entry(
app1.raiden, SendRefundTransfer, {})
assert send_refundtransfer
assert_synched_channel_state(
token_network_identifier,
app0,
deposit,
[send_lockedtransfer.transfer.lock],
app1,
deposit,
[send_refundtransfer.lock],
)
# This channel was exhausted to force the refund transfer
assert_synched_channel_state(
token_network_identifier,
app1,
0,
[],
app2,
deposit * 2,
[],
)
def test_cancel_transfer(raiden_chain, asset, deposit):
app0, app1, app2, app3 = raiden_chain # pylint: disable=unbalanced-tuple-unpacking
messages = setup_messages_cb()
mlogger = MessageLogger()
assert_synched_channels(
channel(app0, app1, asset), deposit, [],
channel(app1, app0, asset), deposit, []
)
assert_synched_channels(
channel(app1, app2, asset), deposit, [],
channel(app2, app1, asset), deposit, []
)
assert_synched_channels(
channel(app2, app3, asset), deposit, [],
channel(app3, app2, asset), deposit, []
)
assert_synched_channels(
channel(app0, app1, asset), deposit, [],
channel(app1, app0, asset), deposit, []
)
# drain the channel app1 -> app2
amount12 = 50
direct_transfer(app1, app2, asset, amount12)
# drain the channel app2 -> app3
amount23 = 80
direct_transfer(app2, app3, asset, amount23)
assert_synched_channels(
channel(app1, app2, asset), deposit - amount12, [],
channel(app2, app1, asset), deposit + amount12, []
)
assert_synched_channels(
channel(app2, app3, asset), deposit - amount23, [],
channel(app3, app2, asset), deposit + amount23, []
)
# app1 -> app3 is the only available path but app2 -> app3 doesnt have
# resources and needs to send a RefundTransfer down the path
transfer(app0, app3, asset, 50)
assert_synched_channels(
channel(app0, app1, asset), deposit, [],
channel(app1, app0, asset), deposit, []
)
assert_synched_channels(
channel(app1, app2, asset), deposit - amount12, [],
channel(app2, app1, asset), deposit + amount12, []
)
assert_synched_channels(
channel(app2, app3, asset), deposit - amount23, [],
channel(app3, app2, asset), deposit + amount23, []
)
assert len(messages) == 12 # DT + DT + SMT + MT + RT + RT + ACKs
app1_messages = mlogger.get_node_messages(pex(app1.raiden.address), only='sent')
assert isinstance(app1_messages[-1], RefundTransfer)
app2_messages = mlogger.get_node_messages(pex(app2.raiden.address), only='sent')
assert isinstance(app2_messages[-1], RefundTransfer)
def test_refund_transfer(raiden_chain, number_of_nodes, token_addresses,
deposit, network_wait):
"""A failed transfer must send a refund back.
TODO:
- Unlock the token on refund #1091
- Clear the merkletree and update the locked amount #193
- Remove the refund message type #490"""
# Topology:
#
# 0 -> 1 -> 2
#
app0, app1, app2 = raiden_chain
token_address = token_addresses[0]
payment_network_identifier = app0.raiden.default_registry.address
token_network_identifier = views.get_token_network_identifier_by_token_address(
views.state_from_app(app0),
payment_network_identifier,
token_address,
)
# make a transfer to test the path app0 -> app1 -> app2
identifier_path = 1
amount_path = 1
mediated_transfer(
app0,
app2,
token_network_identifier,
amount_path,
identifier_path,
timeout=network_wait * number_of_nodes,
)
# drain the channel app1 -> app2
identifier_drain = 2
amount_drain = deposit * 8 // 10
direct_transfer(
app1,
app2,
token_network_identifier,
amount_drain,
identifier_drain,
timeout=network_wait,
)
# wait for the nodes to sync
gevent.sleep(0.2)
assert_synched_channel_state(
token_network_identifier,
app0,
deposit - amount_path,
[],
app1,
deposit + amount_path,
[],
)
assert_synched_channel_state(
token_network_identifier,
app1,
deposit - amount_path - amount_drain,
[],
app2,
deposit + amount_path + amount_drain,
[],
)
# app0 -> app1 -> app2 is the only available path, but the channel app1 ->
# app2 doesn't have capacity, so a refund will be sent on app1 -> app0
identifier_refund = 3
amount_refund = 50
async_result = app0.raiden.mediated_transfer_async(
token_network_identifier,
amount_refund,
app2.raiden.address,
identifier_refund,
)
assert async_result.wait(
) is False, 'there is no path with capacity, the transfer must fail'
gevent.sleep(0.2)
# A lock structure with the correct amount
send_locked = raiden_events_must_contain_entry(
app0.raiden,
SendLockedTransfer,
{'transfer': {
'lock': {
'amount': amount_refund
}
}},
)
assert send_locked
send_refund = raiden_events_must_contain_entry(app1.raiden,
SendRefundTransfer, {})
assert send_refund
lock = send_locked.transfer.lock
refund_lock = send_refund.lock
assert lock.amount == refund_lock.amount
assert lock.secrethash
assert lock.expiration
# Both channels have the amount locked because of the refund message
assert_synched_channel_state(
token_network_identifier,
app0,
deposit - amount_path,
[lockstate_from_lock(lock)],
app1,
deposit + amount_path,
[lockstate_from_lock(refund_lock)],
)
assert_synched_channel_state(
token_network_identifier,
app1,
deposit - amount_path - amount_drain,
[],
app2,
deposit + amount_path + amount_drain,
[],
)
def test_settled_lock(assets_addresses, raiden_network, settle_timeout, reveal_timeout):
""" Any transfer following a secret revealed must update the locksroot, so
that an attacker cannot reuse a secret to double claim a lock.
"""
asset = assets_addresses[0]
amount = 30
app0, app1, app2, _ = raiden_network # pylint: disable=unbalanced-tuple-unpacking
address0 = app0.raiden.address
address1 = app1.raiden.address
# mediated transfer
identifier = 1
expiration = app0.raiden.chain.block_number() + settle_timeout - reveal_timeout
secret = pending_mediated_transfer(
raiden_network,
asset,
amount,
identifier,
expiration,
)
hashlock = sha3(secret)
# get a proof for the pending transfer
back_channel = channel(app1, app0, asset)
secret_transfer = get_received_transfer(back_channel, 0)
lock = back_channel.our_state.balance_proof.get_lock_by_hashlock(hashlock)
unlock_proof = back_channel.our_state.balance_proof.compute_proof_for_lock(secret, lock)
# reveal the secret
claim_lock(raiden_network, asset, secret)
# a new transfer to update the hashlock
direct_transfer(app0, app1, asset, amount)
forward_channel = channel(app0, app1, asset)
last_transfer = get_sent_transfer(forward_channel, 1)
# call close giving the secret for a transfer that has being revealed
back_channel.external_state.netting_channel.close(
app1.raiden.address,
last_transfer,
None
)
# check that the double unlock will failed
with pytest.raises(Exception):
back_channel.external_state.netting_channel.unlock(
app1.raiden.address,
[(unlock_proof, secret_transfer.lock.as_bytes, secret)],
)
# forward the block number to allow settle
settle_expiration = app2.raiden.chain.block_number() + settle_timeout
wait_until_block(app2.raiden.chain, settle_expiration)
back_channel.external_state.netting_channel.settle()
participant0 = back_channel.external_state.netting_channel.contract.participants[address0]
participant1 = back_channel.external_state.netting_channel.contract.participants[address1]
assert participant0.netted == participant0.deposit - amount * 2
assert participant1.netted == participant1.deposit + amount * 2
def test_send_queued_messages(
raiden_network,
number_of_nodes,
deposit,
token_addresses,
network_wait,
skip_if_not_matrix,
):
"""Test re-sending of undelivered messages on node restart"""
app0, app1 = raiden_network
token_address = token_addresses[0]
chain_state = views.state_from_app(app0)
payment_network_id = app0.raiden.default_registry.address
token_network_identifier = views.get_token_network_identifier_by_token_address(
chain_state,
payment_network_id,
token_address,
)
# stop app1 - direct transfer must be left unconfirmed
app1.stop()
# make a few transfers from app0 to app2
amount = 1
spent_amount = 7
for _ in range(spent_amount):
direct_transfer(
app0,
app1,
token_network_identifier,
amount,
timeout=network_wait * number_of_nodes,
)
# restart app0
app0.raiden.stop()
new_transport = MatrixTransport(
app0.raiden.config['transport']['matrix'], )
raiden_event_handler = RaidenEventHandler()
message_handler = MessageHandler()
app0_restart = App(
config=app0.config,
chain=app0.raiden.chain,
query_start_block=0,
default_registry=app0.raiden.default_registry,
default_secret_registry=app0.raiden.default_secret_registry,
transport=new_transport,
raiden_event_handler=raiden_event_handler,
message_handler=message_handler,
discovery=app0.raiden.discovery,
)
app0.stop()
del app0 # from here on the app0_restart should be used
app1.start()
app0_restart.start()
waiting.wait_for_healthy(
app0_restart.raiden,
app1.raiden.address,
network_wait,
)
waiting.wait_for_healthy(
app1.raiden,
app0_restart.raiden.address,
network_wait,
)
exception = RuntimeError('Timeout while waiting for new channel')
with gevent.Timeout(5, exception=exception):
waiting.wait_for_newchannel(
app0_restart.raiden,
payment_network_id,
token_address,
app1.raiden.address,
network_wait,
)
exception = RuntimeError(
'Timeout while waiting for balance update for app0')
with gevent.Timeout(30, exception=exception):
waiting.wait_for_payment_balance(
app0_restart.raiden,
payment_network_id,
token_address,
app1.raiden.address,
app1.raiden.address,
spent_amount,
network_wait,
)
waiting.wait_for_payment_balance(
app1.raiden,
payment_network_id,
token_address,
app0_restart.raiden.address,
app1.raiden.address,
spent_amount,
network_wait,
)
assert_synced_channel_state(
token_network_identifier,
app0_restart,
deposit - spent_amount,
[],
app1,
deposit + spent_amount,
[],
)
