1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
|
#!/usr/bin/env python3
# Copyright (c) 2014-2021 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 the wallet backup features.
Test case is:
4 nodes. 1 2 and 3 send transactions between each other,
fourth node is a miner.
1 2 3 each mine a block to start, then
Miner creates 100 blocks so 1 2 3 each have 50 mature
coins to spend.
Then 5 iterations of 1/2/3 sending coins amongst
themselves to get transactions in the wallets,
and the miner mining one block.
Wallets are backed up using dumpwallet/backupwallet.
Then 5 more iterations of transactions and mining a block.
Miner then generates 101 more blocks, so any
transaction fees paid mature.
Sanity check:
Sum(1,2,3,4 balances) == 114*50
1/2/3 are shutdown, and their wallets erased.
Then restore using wallet.dat backup. And
confirm 1/2/3/4 balances are same as before.
Shutdown again, restore using importwallet,
and confirm again balances are correct.
"""
from decimal import Decimal
import os
from random import randint
import shutil
from test_framework.blocktools import COINBASE_MATURITY
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_equal,
assert_raises_rpc_error,
)
class WalletBackupTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 4
self.setup_clean_chain = True
# nodes 1, 2,3 are spenders, let's give them a keypool=100
# whitelist all peers to speed up tx relay / mempool sync
self.extra_args = [
["-whitelist=noban@127.0.0.1", "-keypool=100"],
["-whitelist=noban@127.0.0.1", "-keypool=100"],
["-whitelist=noban@127.0.0.1", "-keypool=100"],
["-whitelist=noban@127.0.0.1"],
]
self.rpc_timeout = 120
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
def setup_network(self):
self.setup_nodes()
self.connect_nodes(0, 3)
self.connect_nodes(1, 3)
self.connect_nodes(2, 3)
self.connect_nodes(2, 0)
self.sync_all()
def one_send(self, from_node, to_address):
if (randint(1,2) == 1):
amount = Decimal(randint(1,10)) / Decimal(10)
self.nodes[from_node].sendtoaddress(to_address, amount)
def do_one_round(self):
a0 = self.nodes[0].getnewaddress()
a1 = self.nodes[1].getnewaddress()
a2 = self.nodes[2].getnewaddress()
self.one_send(0, a1)
self.one_send(0, a2)
self.one_send(1, a0)
self.one_send(1, a2)
self.one_send(2, a0)
self.one_send(2, a1)
# Have the miner (node3) mine a block.
# Must sync mempools before mining.
self.sync_mempools()
self.generate(self.nodes[3], 1)
# As above, this mirrors the original bash test.
def start_three(self, args=()):
self.start_node(0, self.extra_args[0] + list(args))
self.start_node(1, self.extra_args[1] + list(args))
self.start_node(2, self.extra_args[2] + list(args))
self.connect_nodes(0, 3)
self.connect_nodes(1, 3)
self.connect_nodes(2, 3)
self.connect_nodes(2, 0)
def stop_three(self):
self.stop_node(0)
self.stop_node(1)
self.stop_node(2)
def erase_three(self):
os.remove(os.path.join(self.nodes[0].datadir, self.chain, 'wallets', self.default_wallet_name, self.wallet_data_filename))
os.remove(os.path.join(self.nodes[1].datadir, self.chain, 'wallets', self.default_wallet_name, self.wallet_data_filename))
os.remove(os.path.join(self.nodes[2].datadir, self.chain, 'wallets', self.default_wallet_name, self.wallet_data_filename))
def restore_invalid_wallet(self):
node = self.nodes[3]
invalid_wallet_file = os.path.join(self.nodes[0].datadir, 'invalid_wallet_file.bak')
open(invalid_wallet_file, 'a', encoding="utf8").write('invald wallet')
wallet_name = "res0"
not_created_wallet_file = os.path.join(node.datadir, self.chain, 'wallets', wallet_name)
error_message = "Wallet file verification failed. Failed to load database path '{}'. Data is not in recognized format.".format(not_created_wallet_file)
assert_raises_rpc_error(-18, error_message, node.restorewallet, wallet_name, invalid_wallet_file)
assert not os.path.exists(not_created_wallet_file)
def restore_nonexistent_wallet(self):
node = self.nodes[3]
nonexistent_wallet_file = os.path.join(self.nodes[0].datadir, 'nonexistent_wallet.bak')
wallet_name = "res0"
assert_raises_rpc_error(-8, "Backup file does not exist", node.restorewallet, wallet_name, nonexistent_wallet_file)
not_created_wallet_file = os.path.join(node.datadir, self.chain, 'wallets', wallet_name)
assert not os.path.exists(not_created_wallet_file)
def restore_wallet_existent_name(self):
node = self.nodes[3]
backup_file = os.path.join(self.nodes[0].datadir, 'wallet.bak')
wallet_name = "res0"
wallet_file = os.path.join(node.datadir, self.chain, 'wallets', wallet_name)
error_message = "Failed to create database path '{}'. Database already exists.".format(wallet_file)
assert_raises_rpc_error(-36, error_message, node.restorewallet, wallet_name, backup_file)
assert os.path.exists(wallet_file)
def init_three(self):
self.init_wallet(node=0)
self.init_wallet(node=1)
self.init_wallet(node=2)
def run_test(self):
self.log.info("Generating initial blockchain")
self.generate(self.nodes[0], 1)
self.generate(self.nodes[1], 1)
self.generate(self.nodes[2], 1)
self.generate(self.nodes[3], COINBASE_MATURITY)
assert_equal(self.nodes[0].getbalance(), 50)
assert_equal(self.nodes[1].getbalance(), 50)
assert_equal(self.nodes[2].getbalance(), 50)
assert_equal(self.nodes[3].getbalance(), 0)
self.log.info("Creating transactions")
# Five rounds of sending each other transactions.
for _ in range(5):
self.do_one_round()
self.log.info("Backing up")
self.nodes[0].backupwallet(os.path.join(self.nodes[0].datadir, 'wallet.bak'))
self.nodes[1].backupwallet(os.path.join(self.nodes[1].datadir, 'wallet.bak'))
self.nodes[2].backupwallet(os.path.join(self.nodes[2].datadir, 'wallet.bak'))
if not self.options.descriptors:
self.nodes[0].dumpwallet(os.path.join(self.nodes[0].datadir, 'wallet.dump'))
self.nodes[1].dumpwallet(os.path.join(self.nodes[1].datadir, 'wallet.dump'))
self.nodes[2].dumpwallet(os.path.join(self.nodes[2].datadir, 'wallet.dump'))
self.log.info("More transactions")
for _ in range(5):
self.do_one_round()
# Generate 101 more blocks, so any fees paid mature
self.generate(self.nodes[3], COINBASE_MATURITY + 1)
balance0 = self.nodes[0].getbalance()
balance1 = self.nodes[1].getbalance()
balance2 = self.nodes[2].getbalance()
balance3 = self.nodes[3].getbalance()
total = balance0 + balance1 + balance2 + balance3
# At this point, there are 214 blocks (103 for setup, then 10 rounds, then 101.)
# 114 are mature, so the sum of all wallets should be 114 * 50 = 5700.
assert_equal(total, 5700)
##
# Test restoring spender wallets from backups
##
self.log.info("Restoring wallets on node 3 using backup files")
self.restore_invalid_wallet()
self.restore_nonexistent_wallet()
backup_file_0 = os.path.join(self.nodes[0].datadir, 'wallet.bak')
backup_file_1 = os.path.join(self.nodes[1].datadir, 'wallet.bak')
backup_file_2 = os.path.join(self.nodes[2].datadir, 'wallet.bak')
self.nodes[3].restorewallet("res0", backup_file_0)
self.nodes[3].restorewallet("res1", backup_file_1)
self.nodes[3].restorewallet("res2", backup_file_2)
assert os.path.exists(os.path.join(self.nodes[3].datadir, self.chain, 'wallets', "res0"))
assert os.path.exists(os.path.join(self.nodes[3].datadir, self.chain, 'wallets', "res1"))
assert os.path.exists(os.path.join(self.nodes[3].datadir, self.chain, 'wallets', "res2"))
res0_rpc = self.nodes[3].get_wallet_rpc("res0")
res1_rpc = self.nodes[3].get_wallet_rpc("res1")
res2_rpc = self.nodes[3].get_wallet_rpc("res2")
assert_equal(res0_rpc.getbalance(), balance0)
assert_equal(res1_rpc.getbalance(), balance1)
assert_equal(res2_rpc.getbalance(), balance2)
self.restore_wallet_existent_name()
if not self.options.descriptors:
self.log.info("Restoring using dumped wallet")
self.stop_three()
self.erase_three()
#start node2 with no chain
shutil.rmtree(os.path.join(self.nodes[2].datadir, self.chain, 'blocks'))
shutil.rmtree(os.path.join(self.nodes[2].datadir, self.chain, 'chainstate'))
self.start_three(["-nowallet"])
self.init_three()
assert_equal(self.nodes[0].getbalance(), 0)
assert_equal(self.nodes[1].getbalance(), 0)
assert_equal(self.nodes[2].getbalance(), 0)
self.nodes[0].importwallet(os.path.join(self.nodes[0].datadir, 'wallet.dump'))
self.nodes[1].importwallet(os.path.join(self.nodes[1].datadir, 'wallet.dump'))
self.nodes[2].importwallet(os.path.join(self.nodes[2].datadir, 'wallet.dump'))
self.sync_blocks()
assert_equal(self.nodes[0].getbalance(), balance0)
assert_equal(self.nodes[1].getbalance(), balance1)
assert_equal(self.nodes[2].getbalance(), balance2)
# Backup to source wallet file must fail
sourcePaths = [
os.path.join(self.nodes[0].datadir, self.chain, 'wallets', self.default_wallet_name, self.wallet_data_filename),
os.path.join(self.nodes[0].datadir, self.chain, '.', 'wallets', self.default_wallet_name, self.wallet_data_filename),
os.path.join(self.nodes[0].datadir, self.chain, 'wallets', self.default_wallet_name),
os.path.join(self.nodes[0].datadir, self.chain, 'wallets')]
for sourcePath in sourcePaths:
assert_raises_rpc_error(-4, "backup failed", self.nodes[0].backupwallet, sourcePath)
if __name__ == '__main__':
WalletBackupTest().main()
|
