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bitcoin/test/functional/tool_wallet.py

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#!/usr/bin/env python3
# Copyright (c) 2018-2021 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Test bitcoin-wallet."""
import hashlib
import os
import stat
import subprocess
import textwrap
from collections import OrderedDict
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import assert_equal
BUFFER_SIZE = 16 * 1024
class ToolWalletTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 1
self.setup_clean_chain = True
self.rpc_timeout = 120
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
self.skip_if_no_wallet_tool()
def bitcoin_wallet_process(self, *args):
binary = self.config["environment"]["BUILDDIR"] + '/src/bitcoin-wallet' + self.config["environment"]["EXEEXT"]
default_args = ['-datadir={}'.format(self.nodes[0].datadir), '-chain=%s' % self.chain]
if not self.options.descriptors and 'create' in args:
default_args.append('-legacy')
return subprocess.Popen([binary] + default_args + list(args), stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)
def assert_raises_tool_error(self, error, *args):
p = self.bitcoin_wallet_process(*args)
stdout, stderr = p.communicate()
assert_equal(p.poll(), 1)
assert_equal(stdout, '')
assert_equal(stderr.strip(), error)
def assert_tool_output(self, output, *args):
p = self.bitcoin_wallet_process(*args)
stdout, stderr = p.communicate()
assert_equal(stderr, '')
assert_equal(stdout, output)
assert_equal(p.poll(), 0)
def wallet_shasum(self):
h = hashlib.sha1()
mv = memoryview(bytearray(BUFFER_SIZE))
with open(self.wallet_path, 'rb', buffering=0) as f:
for n in iter(lambda: f.readinto(mv), 0):
h.update(mv[:n])
return h.hexdigest()
def wallet_timestamp(self):
return os.path.getmtime(self.wallet_path)
def wallet_permissions(self):
return oct(os.lstat(self.wallet_path).st_mode)[-3:]
def log_wallet_timestamp_comparison(self, old, new):
result = 'unchanged' if new == old else 'increased!'
self.log.debug('Wallet file timestamp {}'.format(result))
def get_expected_info_output(self, name="", transactions=0, keypool=2, address=0):
wallet_name = self.default_wallet_name if name == "" else name
if self.options.descriptors:
output_types = 4 # p2pkh, p2sh, segwit, bech32m
return textwrap.dedent('''\
Wallet info
===========
Name: %s
Format: sqlite
Descriptors: yes
Encrypted: no
HD (hd seed available): yes
Keypool Size: %d
Transactions: %d
Address Book: %d
''' % (wallet_name, keypool * output_types, transactions, address))
else:
output_types = 3 # p2pkh, p2sh, segwit. Legacy wallets do not support bech32m.
return textwrap.dedent('''\
Wallet info
===========
Name: %s
Format: bdb
Descriptors: no
Encrypted: no
HD (hd seed available): yes
Keypool Size: %d
Transactions: %d
Address Book: %d
''' % (wallet_name, keypool, transactions, address * output_types))
def read_dump(self, filename):
dump = OrderedDict()
with open(filename, "r", encoding="utf8") as f:
for row in f:
row = row.strip()
key, value = row.split(',')
dump[key] = value
return dump
def assert_is_sqlite(self, filename):
with open(filename, 'rb') as f:
file_magic = f.read(16)
assert file_magic == b'SQLite format 3\x00'
def assert_is_bdb(self, filename):
with open(filename, 'rb') as f:
f.seek(12, 0)
file_magic = f.read(4)
assert file_magic == b'\x00\x05\x31\x62' or file_magic == b'\x62\x31\x05\x00'
def write_dump(self, dump, filename, magic=None, skip_checksum=False):
if magic is None:
magic = "BITCOIN_CORE_WALLET_DUMP"
with open(filename, "w", encoding="utf8") as f:
row = ",".join([magic, dump[magic]]) + "\n"
f.write(row)
for k, v in dump.items():
if k == magic or k == "checksum":
continue
row = ",".join([k, v]) + "\n"
f.write(row)
if not skip_checksum:
row = ",".join(["checksum", dump["checksum"]]) + "\n"
f.write(row)
def assert_dump(self, expected, received):
e = expected.copy()
r = received.copy()
# BDB will add a "version" record that is not present in sqlite
# In that case, we should ignore this record in both
# But because this also effects the checksum, we also need to drop that.
v_key = "0776657273696f6e" # Version key
if v_key in e and v_key not in r:
del e[v_key]
del e["checksum"]
del r["checksum"]
if v_key not in e and v_key in r:
del r[v_key]
del e["checksum"]
del r["checksum"]
assert_equal(len(e), len(r))
for k, v in e.items():
assert_equal(v, r[k])
def do_tool_createfromdump(self, wallet_name, dumpfile, file_format=None):
dumppath = os.path.join(self.nodes[0].datadir, dumpfile)
rt_dumppath = os.path.join(self.nodes[0].datadir, "rt-{}.dump".format(wallet_name))
dump_data = self.read_dump(dumppath)
args = ["-wallet={}".format(wallet_name),
"-dumpfile={}".format(dumppath)]
if file_format is not None:
args.append("-format={}".format(file_format))
args.append("createfromdump")
load_output = ""
if file_format is not None and file_format != dump_data["format"]:
load_output += "Warning: Dumpfile wallet format \"{}\" does not match command line specified format \"{}\".\n".format(dump_data["format"], file_format)
self.assert_tool_output(load_output, *args)
assert os.path.isdir(os.path.join(self.nodes[0].datadir, "regtest/wallets", wallet_name))
self.assert_tool_output("The dumpfile may contain private keys. To ensure the safety of your Bitcoin, do not share the dumpfile.\n", '-wallet={}'.format(wallet_name), '-dumpfile={}'.format(rt_dumppath), 'dump')
rt_dump_data = self.read_dump(rt_dumppath)
wallet_dat = os.path.join(self.nodes[0].datadir, "regtest/wallets/", wallet_name, "wallet.dat")
if rt_dump_data["format"] == "bdb":
self.assert_is_bdb(wallet_dat)
else:
self.assert_is_sqlite(wallet_dat)
def test_invalid_tool_commands_and_args(self):
self.log.info('Testing that various invalid commands raise with specific error messages')
self.assert_raises_tool_error("Error parsing command line arguments: Invalid command 'foo'", 'foo')
# `bitcoin-wallet help` raises an error. Use `bitcoin-wallet -help`.
self.assert_raises_tool_error("Error parsing command line arguments: Invalid command 'help'", 'help')
self.assert_raises_tool_error('Error: Additional arguments provided (create). Methods do not take arguments. Please refer to `-help`.', 'info', 'create')
self.assert_raises_tool_error('Error parsing command line arguments: Invalid parameter -foo', '-foo')
self.assert_raises_tool_error('No method provided. Run `bitcoin-wallet -help` for valid methods.')
self.assert_raises_tool_error('Wallet name must be provided when creating a new wallet.', 'create')
locked_dir = os.path.join(self.options.tmpdir, "node0", "regtest", "wallets")
error = 'Error initializing wallet database environment "{}"!'.format(locked_dir)
if self.options.descriptors:
error = f"SQLiteDatabase: Unable to obtain an exclusive lock on the database, is it being used by another instance of {self.config['environment']['PACKAGE_NAME']}?"
self.assert_raises_tool_error(
error,
'-wallet=' + self.default_wallet_name,
'info',
)
path = os.path.join(self.options.tmpdir, "node0", "regtest", "wallets", "nonexistent.dat")
self.assert_raises_tool_error("Failed to load database path '{}'. Path does not exist.".format(path), '-wallet=nonexistent.dat', 'info')
def test_tool_wallet_info(self):
# Stop the node to close the wallet to call the info command.
self.stop_node(0)
self.log.info('Calling wallet tool info, testing output')
#
# TODO: Wallet tool info should work with wallet file permissions set to
# read-only without raising:
# "Error loading wallet.dat. Is wallet being used by another process?"
# The following lines should be uncommented and the tests still succeed:
#
# self.log.debug('Setting wallet file permissions to 400 (read-only)')
# os.chmod(self.wallet_path, stat.S_IRUSR)
# assert self.wallet_permissions() in ['400', '666'] # Sanity check. 666 because Appveyor.
# shasum_before = self.wallet_shasum()
timestamp_before = self.wallet_timestamp()
self.log.debug('Wallet file timestamp before calling info: {}'.format(timestamp_before))
out = self.get_expected_info_output(address=1)
self.assert_tool_output(out, '-wallet=' + self.default_wallet_name, 'info')
timestamp_after = self.wallet_timestamp()
self.log.debug('Wallet file timestamp after calling info: {}'.format(timestamp_after))
self.log_wallet_timestamp_comparison(timestamp_before, timestamp_after)
self.log.debug('Setting wallet file permissions back to 600 (read/write)')
os.chmod(self.wallet_path, stat.S_IRUSR | stat.S_IWUSR)
assert self.wallet_permissions() in ['600', '666'] # Sanity check. 666 because Appveyor.
#
# TODO: Wallet tool info should not write to the wallet file.
# The following lines should be uncommented and the tests still succeed:
#
# assert_equal(timestamp_before, timestamp_after)
# shasum_after = self.wallet_shasum()
# assert_equal(shasum_before, shasum_after)
# self.log.debug('Wallet file shasum unchanged\n')
def test_tool_wallet_info_after_transaction(self):
"""
Mutate the wallet with a transaction to verify that the info command
output changes accordingly.
"""
self.start_node(0)
self.log.info('Generating transaction to mutate wallet')
self.generate(self.nodes[0], 1)
self.stop_node(0)
self.log.info('Calling wallet tool info after generating a transaction, testing output')
shasum_before = self.wallet_shasum()
timestamp_before = self.wallet_timestamp()
self.log.debug('Wallet file timestamp before calling info: {}'.format(timestamp_before))
out = self.get_expected_info_output(transactions=1, address=1)
self.assert_tool_output(out, '-wallet=' + self.default_wallet_name, 'info')
shasum_after = self.wallet_shasum()
timestamp_after = self.wallet_timestamp()
self.log.debug('Wallet file timestamp after calling info: {}'.format(timestamp_after))
self.log_wallet_timestamp_comparison(timestamp_before, timestamp_after)
#
# TODO: Wallet tool info should not write to the wallet file.
# This assertion should be uncommented and succeed:
# assert_equal(timestamp_before, timestamp_after)
assert_equal(shasum_before, shasum_after)
self.log.debug('Wallet file shasum unchanged\n')
def test_tool_wallet_create_on_existing_wallet(self):
self.log.info('Calling wallet tool create on an existing wallet, testing output')
shasum_before = self.wallet_shasum()
timestamp_before = self.wallet_timestamp()
self.log.debug('Wallet file timestamp before calling create: {}'.format(timestamp_before))
out = "Topping up keypool...\n" + self.get_expected_info_output(name="foo", keypool=2000)
self.assert_tool_output(out, '-wallet=foo', 'create')
shasum_after = self.wallet_shasum()
timestamp_after = self.wallet_timestamp()
self.log.debug('Wallet file timestamp after calling create: {}'.format(timestamp_after))
self.log_wallet_timestamp_comparison(timestamp_before, timestamp_after)
assert_equal(timestamp_before, timestamp_after)
assert_equal(shasum_before, shasum_after)
self.log.debug('Wallet file shasum unchanged\n')
def test_getwalletinfo_on_different_wallet(self):
self.log.info('Starting node with arg -wallet=foo')
self.start_node(0, ['-nowallet', '-wallet=foo'])
self.log.info('Calling getwalletinfo on a different wallet ("foo"), testing output')
shasum_before = self.wallet_shasum()
timestamp_before = self.wallet_timestamp()
self.log.debug('Wallet file timestamp before calling getwalletinfo: {}'.format(timestamp_before))
out = self.nodes[0].getwalletinfo()
self.stop_node(0)
shasum_after = self.wallet_shasum()
timestamp_after = self.wallet_timestamp()
self.log.debug('Wallet file timestamp after calling getwalletinfo: {}'.format(timestamp_after))
assert_equal(0, out['txcount'])
if not self.options.descriptors:
assert_equal(1000, out['keypoolsize'])
assert_equal(1000, out['keypoolsize_hd_internal'])
assert_equal(True, 'hdseedid' in out)
else:
assert_equal(4000, out['keypoolsize'])
assert_equal(4000, out['keypoolsize_hd_internal'])
self.log_wallet_timestamp_comparison(timestamp_before, timestamp_after)
assert_equal(timestamp_before, timestamp_after)
assert_equal(shasum_after, shasum_before)
self.log.debug('Wallet file shasum unchanged\n')
def test_salvage(self):
# TODO: Check salvage actually salvages and doesn't break things. https://github.com/bitcoin/bitcoin/issues/7463
self.log.info('Check salvage')
self.start_node(0)
self.nodes[0].createwallet("salvage")
self.stop_node(0)
self.assert_tool_output('', '-wallet=salvage', 'salvage')
def test_dump_createfromdump(self):
self.start_node(0)
self.nodes[0].createwallet("todump")
file_format = self.nodes[0].get_wallet_rpc("todump").getwalletinfo()["format"]
self.nodes[0].createwallet("todump2")
self.stop_node(0)
self.log.info('Checking dump arguments')
self.assert_raises_tool_error('No dump file provided. To use dump, -dumpfile=<filename> must be provided.', '-wallet=todump', 'dump')
self.log.info('Checking basic dump')
wallet_dump = os.path.join(self.nodes[0].datadir, "wallet.dump")
self.assert_tool_output('The dumpfile may contain private keys. To ensure the safety of your Bitcoin, do not share the dumpfile.\n', '-wallet=todump', '-dumpfile={}'.format(wallet_dump), 'dump')
dump_data = self.read_dump(wallet_dump)
orig_dump = dump_data.copy()
# Check the dump magic
assert_equal(dump_data['BITCOIN_CORE_WALLET_DUMP'], '1')
# Check the file format
assert_equal(dump_data["format"], file_format)
self.log.info('Checking that a dumpfile cannot be overwritten')
self.assert_raises_tool_error('File {} already exists. If you are sure this is what you want, move it out of the way first.'.format(wallet_dump), '-wallet=todump2', '-dumpfile={}'.format(wallet_dump), 'dump')
self.log.info('Checking createfromdump arguments')
self.assert_raises_tool_error('No dump file provided. To use createfromdump, -dumpfile=<filename> must be provided.', '-wallet=todump', 'createfromdump')
non_exist_dump = os.path.join(self.nodes[0].datadir, "wallet.nodump")
self.assert_raises_tool_error('Unknown wallet file format "notaformat" provided. Please provide one of "bdb" or "sqlite".', '-wallet=todump', '-format=notaformat', '-dumpfile={}'.format(wallet_dump), 'createfromdump')
self.assert_raises_tool_error('Dump file {} does not exist.'.format(non_exist_dump), '-wallet=todump', '-dumpfile={}'.format(non_exist_dump), 'createfromdump')
wallet_path = os.path.join(self.nodes[0].datadir, 'regtest', 'wallets', 'todump2')
self.assert_raises_tool_error('Failed to create database path \'{}\'. Database already exists.'.format(wallet_path), '-wallet=todump2', '-dumpfile={}'.format(wallet_dump), 'createfromdump')
self.assert_raises_tool_error("The -descriptors option can only be used with the 'create' command.", '-descriptors', '-wallet=todump2', '-dumpfile={}'.format(wallet_dump), 'createfromdump')
self.log.info('Checking createfromdump')
self.do_tool_createfromdump("load", "wallet.dump")
if self.is_bdb_compiled():
self.do_tool_createfromdump("load-bdb", "wallet.dump", "bdb")
if self.is_sqlite_compiled():
self.do_tool_createfromdump("load-sqlite", "wallet.dump", "sqlite")
self.log.info('Checking createfromdump handling of magic and versions')
bad_ver_wallet_dump = os.path.join(self.nodes[0].datadir, "wallet-bad_ver1.dump")
dump_data["BITCOIN_CORE_WALLET_DUMP"] = "0"
self.write_dump(dump_data, bad_ver_wallet_dump)
self.assert_raises_tool_error('Error: Dumpfile version is not supported. This version of bitcoin-wallet only supports version 1 dumpfiles. Got dumpfile with version 0', '-wallet=badload', '-dumpfile={}'.format(bad_ver_wallet_dump), 'createfromdump')
assert not os.path.isdir(os.path.join(self.nodes[0].datadir, "regtest/wallets", "badload"))
bad_ver_wallet_dump = os.path.join(self.nodes[0].datadir, "wallet-bad_ver2.dump")
dump_data["BITCOIN_CORE_WALLET_DUMP"] = "2"
self.write_dump(dump_data, bad_ver_wallet_dump)
self.assert_raises_tool_error('Error: Dumpfile version is not supported. This version of bitcoin-wallet only supports version 1 dumpfiles. Got dumpfile with version 2', '-wallet=badload', '-dumpfile={}'.format(bad_ver_wallet_dump), 'createfromdump')
assert not os.path.isdir(os.path.join(self.nodes[0].datadir, "regtest/wallets", "badload"))
bad_magic_wallet_dump = os.path.join(self.nodes[0].datadir, "wallet-bad_magic.dump")
del dump_data["BITCOIN_CORE_WALLET_DUMP"]
dump_data["not_the_right_magic"] = "1"
self.write_dump(dump_data, bad_magic_wallet_dump, "not_the_right_magic")
self.assert_raises_tool_error('Error: Dumpfile identifier record is incorrect. Got "not_the_right_magic", expected "BITCOIN_CORE_WALLET_DUMP".', '-wallet=badload', '-dumpfile={}'.format(bad_magic_wallet_dump), 'createfromdump')
assert not os.path.isdir(os.path.join(self.nodes[0].datadir, "regtest/wallets", "badload"))
self.log.info('Checking createfromdump handling of checksums')
bad_sum_wallet_dump = os.path.join(self.nodes[0].datadir, "wallet-bad_sum1.dump")
dump_data = orig_dump.copy()
checksum = dump_data["checksum"]
dump_data["checksum"] = "1" * 64
self.write_dump(dump_data, bad_sum_wallet_dump)
self.assert_raises_tool_error('Error: Dumpfile checksum does not match. Computed {}, expected {}'.format(checksum, "1" * 64), '-wallet=bad', '-dumpfile={}'.format(bad_sum_wallet_dump), 'createfromdump')
assert not os.path.isdir(os.path.join(self.nodes[0].datadir, "regtest/wallets", "badload"))
bad_sum_wallet_dump = os.path.join(self.nodes[0].datadir, "wallet-bad_sum2.dump")
del dump_data["checksum"]
self.write_dump(dump_data, bad_sum_wallet_dump, skip_checksum=True)
self.assert_raises_tool_error('Error: Missing checksum', '-wallet=badload', '-dumpfile={}'.format(bad_sum_wallet_dump), 'createfromdump')
assert not os.path.isdir(os.path.join(self.nodes[0].datadir, "regtest/wallets", "badload"))
bad_sum_wallet_dump = os.path.join(self.nodes[0].datadir, "wallet-bad_sum3.dump")
dump_data["checksum"] = "2" * 10
self.write_dump(dump_data, bad_sum_wallet_dump)
self.assert_raises_tool_error('Error: Dumpfile checksum does not match. Computed {}, expected {}{}'.format(checksum, "2" * 10, "0" * 54), '-wallet=badload', '-dumpfile={}'.format(bad_sum_wallet_dump), 'createfromdump')
assert not os.path.isdir(os.path.join(self.nodes[0].datadir, "regtest/wallets", "badload"))
def run_test(self):
self.wallet_path = os.path.join(self.nodes[0].datadir, self.chain, 'wallets', self.default_wallet_name, self.wallet_data_filename)
self.test_invalid_tool_commands_and_args()
# Warning: The following tests are order-dependent.
self.test_tool_wallet_info()
self.test_tool_wallet_info_after_transaction()
self.test_tool_wallet_create_on_existing_wallet()
self.test_getwalletinfo_on_different_wallet()
if not self.options.descriptors:
# Salvage is a legacy wallet only thing
self.test_salvage()
self.test_dump_createfromdump()
if __name__ == '__main__':
ToolWalletTest().main()
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