Basic Atomic Swap Proof of Concept
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright (c) 2020-2023 tecnovert
# Distributed under the MIT software license, see the accompanying
# file LICENSE.txt or http://www.opensource.org/licenses/mit-license.php.
import os
import json
import signal
import logging
from urllib.request import urlopen
from .util import read_json_api
from basicswap.rpc import callrpc
from basicswap.contrib.rpcauth import generate_salt, password_to_hmac
from bin.basicswap_prepare import downloadPIVXParams
TEST_HTTP_HOST = os.getenv('TEST_HTTP_HOST', '127.0.0.1') # Set to 0.0.0.0 when used in docker
TEST_HTTP_PORT = 1800
BASE_P2P_PORT = 12792
BASE_PORT = 14792
BASE_RPC_PORT = 19792
BASE_ZMQ_PORT = 20792
BTC_BASE_PORT = 31792
BTC_BASE_RPC_PORT = 32792
BTC_BASE_ZMQ_PORT = 33792
BTC_BASE_TOR_PORT = 33732
LTC_BASE_PORT = 34792
LTC_BASE_RPC_PORT = 35792
LTC_BASE_ZMQ_PORT = 36792
PIVX_BASE_PORT = 34892
PIVX_BASE_RPC_PORT = 35892
PIVX_BASE_ZMQ_PORT = 36892
PREFIX_SECRET_KEY_REGTEST = 0x2e
def prepareDataDir(datadir, node_id, conf_file, dir_prefix, base_p2p_port=BASE_PORT, base_rpc_port=BASE_RPC_PORT, num_nodes=3):
node_dir = os.path.join(datadir, dir_prefix + str(node_id))
if not os.path.exists(node_dir):
os.makedirs(node_dir)
cfg_file_path = os.path.join(node_dir, conf_file)
if os.path.exists(cfg_file_path):
return
with open(cfg_file_path, 'w+') as fp:
fp.write('regtest=1\n')
fp.write('[regtest]\n')
fp.write('port=' + str(base_p2p_port + node_id) + '\n')
fp.write('rpcport=' + str(base_rpc_port + node_id) + '\n')
salt = generate_salt(16)
fp.write('rpcauth={}:{}${}\n'.format('test' + str(node_id), salt, password_to_hmac(salt, 'test_pass' + str(node_id))))
fp.write('daemon=0\n')
fp.write('printtoconsole=0\n')
fp.write('server=1\n')
fp.write('discover=0\n')
fp.write('listenonion=0\n')
fp.write('bind=127.0.0.1\n')
fp.write('debug=1\n')
fp.write('debugexclude=libevent\n')
fp.write('fallbackfee=0.01\n')
fp.write('acceptnonstdtxn=0\n')
fp.write('txindex=1\n')
fp.write('wallet=wallet.dat\n')
fp.write('findpeers=0\n')
if base_p2p_port == BTC_BASE_PORT:
fp.write('deprecatedrpc=create_bdb\n')
elif base_p2p_port == BASE_PORT: # Particl
fp.write('zmqpubsmsg=tcp://127.0.0.1:{}\n'.format(BASE_ZMQ_PORT + node_id))
# minstakeinterval=5 # Using walletsettings stakelimit instead
fp.write('stakethreadconddelayms=1000\n')
fp.write('smsgsregtestadjust=0\n')
if conf_file == 'pivx.conf':
params_dir = os.path.join(datadir, 'pivx-params')
downloadPIVXParams(params_dir)
fp.write(f'paramsdir={params_dir}\n')
for i in range(0, num_nodes):
if node_id == i:
continue
fp.write('addnode=127.0.0.1:{}\n'.format(base_p2p_port + i))
return node_dir
def checkForks(ro):
try:
if 'bip9_softforks' in ro:
assert (ro['bip9_softforks']['csv']['status'] == 'active')
assert (ro['bip9_softforks']['segwit']['status'] == 'active')
else:
assert (ro['softforks']['csv']['active'])
assert (ro['softforks']['segwit']['active'])
except Exception as e:
logging.warning('Could not parse deployment info')
def stopDaemons(daemons):
for d in daemons:
logging.info('Interrupting %d', d.pid)
try:
d.send_signal(signal.SIGINT)
except Exception as e:
logging.info('Interrupting %d, error %s', d.pid, str(e))
for d in daemons:
try:
d.wait(timeout=20)
for fp in (d.stdout, d.stderr, d.stdin):
if fp:
fp.close()
except Exception as e:
logging.info('Closing %d, error %s', d.pid, str(e))
def wait_for_bid(delay_event, swap_client, bid_id, state=None, sent: bool = False, wait_for: int = 20) -> None:
logging.info('wait_for_bid %s', bid_id.hex())
for i in range(wait_for):
if delay_event.is_set():
raise ValueError('Test stopped.')
delay_event.wait(1)
filters = {
'bid_id': bid_id,
}
bids = swap_client.listBids(sent=sent, filters=filters)
assert (len(bids) < 2)
for bid in bids:
if bid[2] == bid_id:
if isinstance(state, list):
if bid[5] in state:
return
else:
continue
elif state is not None and state != bid[5]:
continue
return
raise ValueError('wait_for_bid timed out.')
def wait_for_bid_tx_state(delay_event, swap_client, bid_id, initiate_state, participate_state, wait_for=30):
logging.info('wait_for_bid_tx_state %s %s %s', bid_id.hex(), str(initiate_state), str(participate_state))
for i in range(wait_for):
if delay_event.is_set():
raise ValueError('Test stopped.')
delay_event.wait(1)
bid = swap_client.getBid(bid_id)
if (initiate_state is None or bid.getITxState() == initiate_state) \
and (participate_state is None or bid.getPTxState() == participate_state):
return
raise ValueError('wait_for_bid_tx_state timed out.')
def wait_for_event(delay_event, swap_client, linked_type, linked_id, event_type=None, wait_for=20):
logging.info('wait_for_event')
for i in range(wait_for):
if delay_event.is_set():
raise ValueError('Test stopped.')
delay_event.wait(1)
rv = swap_client.getEvents(linked_type, linked_id)
for event in rv:
if event_type is None or event.event_type == event_type:
return event
raise ValueError('wait_for_event timed out.')
def wait_for_offer(delay_event, swap_client, offer_id, wait_for=20):
logging.info('wait_for_offer %s', offer_id.hex())
for i in range(wait_for):
if delay_event.is_set():
raise ValueError('Test stopped.')
delay_event.wait(1)
offers = swap_client.listOffers()
for offer in offers:
if offer.offer_id == offer_id:
return
raise ValueError('wait_for_offer timed out.')
def wait_for_no_offer(delay_event, swap_client, offer_id, wait_for=20):
logging.info('wait_for_no_offer %s', offer_id.hex())
for i in range(wait_for):
if delay_event.is_set():
raise ValueError('Test stopped.')
delay_event.wait(1)
offers = swap_client.listOffers()
found_offer = False
for offer in offers:
if offer.offer_id == offer_id:
found_offer = True
break
if not found_offer:
return True
raise ValueError('wait_for_offer timed out.')
def wait_for_in_progress(delay_event, swap_client, bid_id, sent=False):
logging.info('wait_for_in_progress %s', bid_id.hex())
for i in range(20):
if delay_event.is_set():
raise ValueError('Test stopped.')
delay_event.wait(1)
swaps = swap_client.listSwapsInProgress()
for b in swaps:
if b[0] == bid_id:
return
raise ValueError('wait_for_in_progress timed out.')
def wait_for_none_active(delay_event, port, wait_for=30):
for i in range(wait_for):
if delay_event.is_set():
raise ValueError('Test stopped.')
delay_event.wait(1)
js = read_json_api(port)
if js['num_swapping'] == 0 and js['num_watched_outputs'] == 0:
return
raise ValueError('wait_for_none_active timed out.')
def abandon_all_swaps(delay_event, swap_client) -> None:
logging.info('abandon_all_swaps')
for bid in swap_client.listBids(sent=True):
swap_client.abandonBid(bid[2])
for bid in swap_client.listBids(sent=False):
swap_client.abandonBid(bid[2])
def waitForNumOffers(delay_event, port, offers, wait_for=20):
for i in range(wait_for):
if delay_event.is_set():
raise ValueError('Test stopped.')
summary = read_json_api(port)
if summary['num_network_offers'] >= offers:
return
delay_event.wait(1)
raise ValueError('waitForNumOffers failed')
def waitForNumBids(delay_event, port, bids, wait_for=20):
for i in range(wait_for):
if delay_event.is_set():
raise ValueError('Test stopped.')
summary = read_json_api(port)
if summary['num_recv_bids'] >= bids:
return
delay_event.wait(1)
raise ValueError('waitForNumBids failed')
def waitForNumSwapping(delay_event, port, bids, wait_for=60):
for i in range(wait_for):
if delay_event.is_set():
raise ValueError('Test stopped.')
summary = read_json_api(port)
if summary['num_swapping'] >= bids:
return
delay_event.wait(1)
raise ValueError('waitForNumSwapping failed')
def wait_for_balance(delay_event, url, balance_key, expect_amount, iterations=20, delay_time=3) -> None:
i = 0
while not delay_event.is_set():
rv_js = json.loads(urlopen(url).read())
if float(rv_js[balance_key]) >= expect_amount:
return
delay_event.wait(delay_time)
i += 1
if i > iterations:
raise ValueError('Expect {} {}'.format(balance_key, expect_amount))
def wait_for_unspent(delay_event, ci, expect_amount, iterations=20, delay_time=1) -> None:
logging.info(f'Waiting for unspent balance: {expect_amount}')
i = 0
while not delay_event.is_set():
unspent_addr = ci.getUnspentsByAddr()
for _, value in unspent_addr.items():
if value >= expect_amount:
return
delay_event.wait(delay_time)
i += 1
if i > iterations:
raise ValueError('wait_for_unspent {}'.format(expect_amount))
def delay_for(delay_event, delay_for=60):
logging.info('Delaying for {} seconds.'.format(delay_for))
delay_event.wait(delay_for)
def make_rpc_func(node_id, base_rpc_port=BASE_RPC_PORT):
node_id = node_id
auth = 'test{0}:test_pass{0}'.format(node_id)
def rpc_func(method, params=None, wallet=None):
nonlocal node_id, auth
return callrpc(base_rpc_port + node_id, auth, method, params, wallet)
return rpc_func
def extract_states_from_xu_file(file_path, prefix):
states = {}
alt_counter = 0
active_path = 0
states[active_path] = []
path_stack = [active_path, ]
with open(file_path) as fp:
for line in fp:
line = line.strip()
if line.startswith('#'):
continue
if line == '};':
if len(path_stack) > 1:
path_stack.pop()
active_path = path_stack[-1]
continue
split_line = line.split('[')
if len(split_line) < 2:
continue
definitions = split_line[0].split(' ')
if len(definitions) < 2:
continue
if definitions[1] == 'alt':
alt_counter += 1
path_stack.append(alt_counter)
states[alt_counter] = [s for s in states[active_path]]
continue
if definitions[0] == '---':
active_path = path_stack[-1]
continue
if definitions[1] != 'abox':
continue
if definitions[0] != prefix:
continue
tag_start = 'label="'
tag_end = '"'
pos_start = split_line[1].find(tag_start)
if pos_start < 0:
continue
pos_start += len(tag_start)
pos_end = split_line[1].find(tag_end, pos_start)
if pos_end < 0:
continue
label = split_line[1][pos_start:pos_end]
if line.find('textbgcolor') > 0:
# transaction status
pass
states[active_path].append(label)
return states
def compare_bid_states(states, expect_states, exact_match=True):
for i in range(len(states) - 1, -1, -1):
if states[i][1] == 'Bid Delaying':
del states[i]
try:
if exact_match:
assert (len(states) == len(expect_states))
else:
assert (len(states) >= len(expect_states))
for i in range(len(expect_states)):
s = states[i]
if s[1] != expect_states[i]:
if 'Bid ' + expect_states[i] == s[1]:
logging.warning(f'Expected state {expect_states[i]} not an exact match to {s[1]}.')
continue
if [s[0], expect_states[i]] in states:
logging.warning(f'Expected state {expect_states[i]} found out of order at the same time as {s[1]}.')
continue
raise ValueError(f'Expected state {expect_states[i]}, found {s[1]}')
assert (s[1] == expect_states[i])
except Exception as e:
logging.info('Expecting states: {}'.format(json.dumps(expect_states, indent=4)))
logging.info('Have states: {}'.format(json.dumps(states, indent=4)))
raise e
return True