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wallet_dump.py
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#!/usr/bin/env python3
# Copyright (c) 2016-2020 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 the dumpwallet RPC."""
import datetime
import os
import time
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_equal,
assert_raises_rpc_error,
)
def read_dump(file_name, addrs, script_addrs, hd_master_addr_old):
"""
Read the given dump, count the addrs that match, count change and reserve.
Also check that the old hd_master is inactive
"""
with open(file_name, encoding='utf8') as inputfile:
found_comments = []
found_legacy_addr = 0
found_p2sh_segwit_addr = 0
found_bech32_addr = 0
found_script_addr = 0
found_addr_chg = 0
found_addr_rsv = 0
hd_master_addr_ret = None
for line in inputfile:
line = line.strip()
if not line:
continue
if line[0] == '#':
found_comments.append(line)
else:
# split out some data
key_date_label, comment = line.split("#")
key_date_label = key_date_label.split(" ")
# key = key_date_label[0]
date = key_date_label[1]
keytype = key_date_label[2]
imported_key = date == '1970-01-01T00:00:01Z'
if imported_key:
# Imported keys have multiple addresses, no label (keypath) and timestamp
# Skip them
continue
addr_keypath = comment.split(" addr=")[1]
addr = addr_keypath.split(" ")[0]
keypath = None
if keytype == "inactivehdseed=1":
# ensure the old master is still available
assert hd_master_addr_old == addr
elif keytype == "hdseed=1":
# ensure we have generated a new hd master key
assert hd_master_addr_old != addr
hd_master_addr_ret = addr
elif keytype == "script=1":
# scripts don't have keypaths
keypath = None
else:
keypath = addr_keypath.rstrip().split("hdkeypath=")[1]
# count key types
for addrObj in addrs:
if addrObj['address'] == addr.split(",")[0] and addrObj['hdkeypath'] == keypath and keytype == "label=":
if addr.startswith('m') or addr.startswith('n'):
# P2PKH address
found_legacy_addr += 1
elif addr.startswith('2'):
# P2SH-segwit address
found_p2sh_segwit_addr += 1
elif addr.startswith('bcrt1'):
found_bech32_addr += 1
break
elif keytype == "change=1":
found_addr_chg += 1
break
elif keytype == "reserve=1":
found_addr_rsv += 1
break
# count scripts
for script_addr in script_addrs:
if script_addr == addr.rstrip() and keytype == "script=1":
found_script_addr += 1
break
return found_comments, found_legacy_addr, found_p2sh_segwit_addr, found_bech32_addr, found_script_addr, found_addr_chg, found_addr_rsv, hd_master_addr_ret
class WalletDumpTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 1
self.extra_args = [["-keypool=90", "-addresstype=legacy"]]
self.rpc_timeout = 120
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
def setup_network(self):
self.add_nodes(self.num_nodes, extra_args=self.extra_args)
self.start_nodes()
def run_test(self):
self.nodes[0].createwallet("dump")
wallet_unenc_dump = os.path.join(self.nodes[0].datadir, "wallet.unencrypted.dump")
wallet_enc_dump = os.path.join(self.nodes[0].datadir, "wallet.encrypted.dump")
# generate 30 addresses to compare against the dump
# - 10 legacy P2PKH
# - 10 P2SH-segwit
# - 10 bech32
test_addr_count = 10
addrs = []
for address_type in ['legacy', 'p2sh-segwit', 'bech32']:
for _ in range(test_addr_count):
addr = self.nodes[0].getnewaddress(address_type=address_type)
vaddr = self.nodes[0].getaddressinfo(addr) # required to get hd keypath
addrs.append(vaddr)
# Test scripts dump by adding a 1-of-1 multisig address
multisig_addr = self.nodes[0].addmultisigaddress(1, [addrs[1]["address"]])["address"]
# Refill the keypool. getnewaddress() refills the keypool *before* taking a key from
# the keypool, so the final call to getnewaddress leaves the keypool with one key below
# its capacity
self.nodes[0].keypoolrefill()
self.log.info('Mine a block one second before the wallet is dumped')
dump_time = int(time.time())
self.nodes[0].setmocktime(dump_time - 1)
self.nodes[0].generate(1)
self.nodes[0].setmocktime(dump_time)
dump_time_str = '# * Created on {}Z'.format(
datetime.datetime.fromtimestamp(
dump_time,
tz=datetime.timezone.utc,
).replace(tzinfo=None).isoformat())
dump_best_block_1 = '# * Best block at time of backup was {} ({}),'.format(
self.nodes[0].getblockcount(),
self.nodes[0].getbestblockhash(),
)
dump_best_block_2 = '# mined on {}Z'.format(
datetime.datetime.fromtimestamp(
dump_time - 1,
tz=datetime.timezone.utc,
).replace(tzinfo=None).isoformat())
self.log.info('Dump unencrypted wallet')
result = self.nodes[0].dumpwallet(wallet_unenc_dump)
assert_equal(result['filename'], wallet_unenc_dump)
found_comments, found_legacy_addr, found_p2sh_segwit_addr, found_bech32_addr, found_script_addr, found_addr_chg, found_addr_rsv, hd_master_addr_unenc = \
read_dump(wallet_unenc_dump, addrs, [multisig_addr], None)
assert '# End of dump' in found_comments # Check that file is not corrupt
assert_equal(dump_time_str, next(c for c in found_comments if c.startswith('# * Created on')))
assert_equal(dump_best_block_1, next(c for c in found_comments if c.startswith('# * Best block')))
assert_equal(dump_best_block_2, next(c for c in found_comments if c.startswith('# mined on')))
assert_equal(found_legacy_addr, test_addr_count) # all keys must be in the dump
assert_equal(found_p2sh_segwit_addr, test_addr_count) # all keys must be in the dump
assert_equal(found_bech32_addr, test_addr_count) # all keys must be in the dump
assert_equal(found_script_addr, 1) # all scripts must be in the dump
assert_equal(found_addr_chg, 0) # 0 blocks where mined
assert_equal(found_addr_rsv, 90 * 2) # 90 keys plus 100% internal keys
# encrypt wallet, restart, unlock and dump
self.nodes[0].encryptwallet('test')
self.nodes[0].walletpassphrase('test', 100)
# Should be a no-op:
self.nodes[0].keypoolrefill()
self.nodes[0].dumpwallet(wallet_enc_dump)
found_comments, found_legacy_addr, found_p2sh_segwit_addr, found_bech32_addr, found_script_addr, found_addr_chg, found_addr_rsv, _ = \
read_dump(wallet_enc_dump, addrs, [multisig_addr], hd_master_addr_unenc)
assert '# End of dump' in found_comments # Check that file is not corrupt
assert_equal(dump_time_str, next(c for c in found_comments if c.startswith('# * Created on')))
assert_equal(dump_best_block_1, next(c for c in found_comments if c.startswith('# * Best block')))
assert_equal(dump_best_block_2, next(c for c in found_comments if c.startswith('# mined on')))
assert_equal(found_legacy_addr, test_addr_count) # all keys must be in the dump
assert_equal(found_p2sh_segwit_addr, test_addr_count) # all keys must be in the dump
assert_equal(found_bech32_addr, test_addr_count) # all keys must be in the dump
assert_equal(found_script_addr, 1)
assert_equal(found_addr_chg, 90 * 2) # old reserve keys are marked as change now
assert_equal(found_addr_rsv, 90 * 2)
# Overwriting should fail
assert_raises_rpc_error(-8, "already exists", lambda: self.nodes[0].dumpwallet(wallet_enc_dump))
# Restart node with new wallet, and test importwallet
self.restart_node(0)
self.nodes[0].createwallet("w2")
# Make sure the address is not IsMine before import
result = self.nodes[0].getaddressinfo(multisig_addr)
assert not result['ismine']
self.nodes[0].importwallet(wallet_unenc_dump)
# Now check IsMine is true
result = self.nodes[0].getaddressinfo(multisig_addr)
assert result['ismine']
self.log.info('Check that wallet is flushed')
with self.nodes[0].assert_debug_log(['Flushing wallet.dat'], timeout=20):
self.nodes[0].getnewaddress()
if __name__ == '__main__':
WalletDumpTest().main()