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+#!/usr/bin/env python3
+# Copyright (c) 2018-2020 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Backwards compatibility functional test
+
+Test various backwards compatibility scenarios. Download the previous node binaries:
+
+contrib/devtools/previous_release.sh -b v0.19.0.1 v0.18.1 v0.17.1
+
+Due to RPC changes introduced in various versions the below tests
+won't work for older versions without some patches or workarounds.
+
+Use only the latest patch version of each release, unless a test specifically
+needs an older patch version.
+"""
+
+import os
+import shutil
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.descriptors import descsum_create
+
+from test_framework.util import (
+ assert_equal,
+ sync_blocks,
+ sync_mempools,
+)
+
+
+class BackwardsCompatibilityTest(BitcoinTestFramework):
+ def set_test_params(self):
+ self.setup_clean_chain = True
+ self.num_nodes = 5
+ # Add new version after each release:
+ self.extra_args = [
+ ["-addresstype=bech32"], # Pre-release: use to mine blocks
+ ["-nowallet", "-walletrbf=1", "-addresstype=bech32"], # Pre-release: use to receive coins, swap wallets, etc
+ ["-nowallet", "-walletrbf=1", "-addresstype=bech32"], # v0.19.0.1
+ ["-nowallet", "-walletrbf=1", "-addresstype=bech32"], # v0.18.1
+ ["-nowallet", "-walletrbf=1", "-addresstype=bech32"] # v0.17.1
+ ]
+
+ def skip_test_if_missing_module(self):
+ self.skip_if_no_wallet()
+ self.skip_if_no_previous_releases()
+
+ def setup_nodes(self):
+ self.add_nodes(self.num_nodes, extra_args=self.extra_args, versions=[
+ None,
+ None,
+ 190001,
+ 180100,
+ 170100,
+ ])
+
+ self.start_nodes()
+
+ def run_test(self):
+ self.nodes[0].generatetoaddress(101, self.nodes[0].getnewaddress())
+
+ sync_blocks(self.nodes)
+
+ # Sanity check the test framework:
+ res = self.nodes[self.num_nodes - 1].getblockchaininfo()
+ assert_equal(res['blocks'], 101)
+
+ node_master = self.nodes[self.num_nodes - 4]
+ node_v19 = self.nodes[self.num_nodes - 3]
+ node_v18 = self.nodes[self.num_nodes - 2]
+ node_v17 = self.nodes[self.num_nodes - 1]
+
+ self.log.info("Test wallet backwards compatibility...")
+ # Create a number of wallets and open them in older versions:
+
+ # w1: regular wallet, created on master: update this test when default
+ # wallets can no longer be opened by older versions.
+ node_master.rpc.createwallet(wallet_name="w1")
+ wallet = node_master.get_wallet_rpc("w1")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled']
+ assert info['keypoolsize'] > 0
+ # Create a confirmed transaction, receiving coins
+ address = wallet.getnewaddress()
+ self.nodes[0].sendtoaddress(address, 10)
+ sync_mempools(self.nodes)
+ self.nodes[0].generate(1)
+ sync_blocks(self.nodes)
+ # Create a conflicting transaction using RBF
+ return_address = self.nodes[0].getnewaddress()
+ tx1_id = self.nodes[1].sendtoaddress(return_address, 1)
+ tx2_id = self.nodes[1].bumpfee(tx1_id)["txid"]
+ # Confirm the transaction
+ sync_mempools(self.nodes)
+ self.nodes[0].generate(1)
+ sync_blocks(self.nodes)
+ # Create another conflicting transaction using RBF
+ tx3_id = self.nodes[1].sendtoaddress(return_address, 1)
+ tx4_id = self.nodes[1].bumpfee(tx3_id)["txid"]
+ # Abandon transaction, but don't confirm
+ self.nodes[1].abandontransaction(tx3_id)
+
+ # w1_v19: regular wallet, created with v0.19
+ node_v19.rpc.createwallet(wallet_name="w1_v19")
+ wallet = node_v19.get_wallet_rpc("w1_v19")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled']
+ assert info['keypoolsize'] > 0
+ # Use addmultisigaddress (see #18075)
+ address_18075 = wallet.rpc.addmultisigaddress(1, ["0296b538e853519c726a2c91e61ec11600ae1390813a627c66fb8be7947be63c52", "037211a824f55b505228e4c3d5194c1fcfaa15a456abdf37f9b9d97a4040afc073"], "", "legacy")["address"]
+ assert wallet.getaddressinfo(address_18075)["solvable"]
+
+ # w1_v18: regular wallet, created with v0.18
+ node_v18.rpc.createwallet(wallet_name="w1_v18")
+ wallet = node_v18.get_wallet_rpc("w1_v18")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled']
+ assert info['keypoolsize'] > 0
+
+ # w2: wallet with private keys disabled, created on master: update this
+ # test when default wallets private keys disabled can no longer be
+ # opened by older versions.
+ node_master.rpc.createwallet(wallet_name="w2", disable_private_keys=True)
+ wallet = node_master.get_wallet_rpc("w2")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled'] == False
+ assert info['keypoolsize'] == 0
+
+ # w2_v19: wallet with private keys disabled, created with v0.19
+ node_v19.rpc.createwallet(wallet_name="w2_v19", disable_private_keys=True)
+ wallet = node_v19.get_wallet_rpc("w2_v19")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled'] == False
+ assert info['keypoolsize'] == 0
+
+ # w2_v18: wallet with private keys disabled, created with v0.18
+ node_v18.rpc.createwallet(wallet_name="w2_v18", disable_private_keys=True)
+ wallet = node_v18.get_wallet_rpc("w2_v18")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled'] == False
+ assert info['keypoolsize'] == 0
+
+ # w3: blank wallet, created on master: update this
+ # test when default blank wallets can no longer be opened by older versions.
+ node_master.rpc.createwallet(wallet_name="w3", blank=True)
+ wallet = node_master.get_wallet_rpc("w3")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled']
+ assert info['keypoolsize'] == 0
+
+ # w3_v19: blank wallet, created with v0.19
+ node_v19.rpc.createwallet(wallet_name="w3_v19", blank=True)
+ wallet = node_v19.get_wallet_rpc("w3_v19")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled']
+ assert info['keypoolsize'] == 0
+
+ # w3_v18: blank wallet, created with v0.18
+ node_v18.rpc.createwallet(wallet_name="w3_v18", blank=True)
+ wallet = node_v18.get_wallet_rpc("w3_v18")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled']
+ assert info['keypoolsize'] == 0
+
+ # Copy the wallets to older nodes:
+ node_master_wallets_dir = os.path.join(node_master.datadir, "regtest/wallets")
+ node_v19_wallets_dir = os.path.join(node_v19.datadir, "regtest/wallets")
+ node_v18_wallets_dir = os.path.join(node_v18.datadir, "regtest/wallets")
+ node_v17_wallets_dir = os.path.join(node_v17.datadir, "regtest/wallets")
+ node_master.unloadwallet("w1")
+ node_master.unloadwallet("w2")
+ node_v19.unloadwallet("w1_v19")
+ node_v19.unloadwallet("w2_v19")
+ node_v18.unloadwallet("w1_v18")
+ node_v18.unloadwallet("w2_v18")
+
+ # Copy wallets to v0.17
+ for wallet in os.listdir(node_master_wallets_dir):
+ shutil.copytree(
+ os.path.join(node_master_wallets_dir, wallet),
+ os.path.join(node_v17_wallets_dir, wallet)
+ )
+ for wallet in os.listdir(node_v18_wallets_dir):
+ shutil.copytree(
+ os.path.join(node_v18_wallets_dir, wallet),
+ os.path.join(node_v17_wallets_dir, wallet)
+ )
+
+ # Copy wallets to v0.18
+ for wallet in os.listdir(node_master_wallets_dir):
+ shutil.copytree(
+ os.path.join(node_master_wallets_dir, wallet),
+ os.path.join(node_v18_wallets_dir, wallet)
+ )
+
+ # Copy wallets to v0.19
+ for wallet in os.listdir(node_master_wallets_dir):
+ shutil.copytree(
+ os.path.join(node_master_wallets_dir, wallet),
+ os.path.join(node_v19_wallets_dir, wallet)
+ )
+
+ # Open the wallets in v0.19
+ node_v19.loadwallet("w1")
+ wallet = node_v19.get_wallet_rpc("w1")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled']
+ assert info['keypoolsize'] > 0
+ txs = wallet.listtransactions()
+ assert_equal(len(txs), 5)
+ assert_equal(txs[1]["txid"], tx1_id)
+ assert_equal(txs[2]["walletconflicts"], [tx1_id])
+ assert_equal(txs[1]["replaced_by_txid"], tx2_id)
+ assert not(txs[1]["abandoned"])
+ assert_equal(txs[1]["confirmations"], -1)
+ assert_equal(txs[2]["blockindex"], 1)
+ assert txs[3]["abandoned"]
+ assert_equal(txs[4]["walletconflicts"], [tx3_id])
+ assert_equal(txs[3]["replaced_by_txid"], tx4_id)
+ assert not(hasattr(txs[3], "blockindex"))
+
+ node_v19.loadwallet("w2")
+ wallet = node_v19.get_wallet_rpc("w2")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled'] == False
+ assert info['keypoolsize'] == 0
+
+ node_v19.loadwallet("w3")
+ wallet = node_v19.get_wallet_rpc("w3")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled']
+ assert info['keypoolsize'] == 0
+
+ # Open the wallets in v0.18
+ node_v18.loadwallet("w1")
+ wallet = node_v18.get_wallet_rpc("w1")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled']
+ assert info['keypoolsize'] > 0
+ txs = wallet.listtransactions()
+ assert_equal(len(txs), 5)
+ assert_equal(txs[1]["txid"], tx1_id)
+ assert_equal(txs[2]["walletconflicts"], [tx1_id])
+ assert_equal(txs[1]["replaced_by_txid"], tx2_id)
+ assert not(txs[1]["abandoned"])
+ assert_equal(txs[1]["confirmations"], -1)
+ assert_equal(txs[2]["blockindex"], 1)
+ assert txs[3]["abandoned"]
+ assert_equal(txs[4]["walletconflicts"], [tx3_id])
+ assert_equal(txs[3]["replaced_by_txid"], tx4_id)
+ assert not(hasattr(txs[3], "blockindex"))
+
+ node_v18.loadwallet("w2")
+ wallet = node_v18.get_wallet_rpc("w2")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled'] == False
+ assert info['keypoolsize'] == 0
+
+ node_v18.loadwallet("w3")
+ wallet = node_v18.get_wallet_rpc("w3")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled']
+ assert info['keypoolsize'] == 0
+
+ # Open the wallets in v0.17
+ node_v17.loadwallet("w1_v18")
+ wallet = node_v17.get_wallet_rpc("w1_v18")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled']
+ assert info['keypoolsize'] > 0
+
+ node_v17.loadwallet("w1")
+ wallet = node_v17.get_wallet_rpc("w1")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled']
+ assert info['keypoolsize'] > 0
+
+ node_v17.loadwallet("w2_v18")
+ wallet = node_v17.get_wallet_rpc("w2_v18")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled'] == False
+ assert info['keypoolsize'] == 0
+
+ node_v17.loadwallet("w2")
+ wallet = node_v17.get_wallet_rpc("w2")
+ info = wallet.getwalletinfo()
+ assert info['private_keys_enabled'] == False
+ assert info['keypoolsize'] == 0
+
+ # RPC loadwallet failure causes bitcoind to exit, in addition to the RPC
+ # call failure, so the following test won't work:
+ # assert_raises_rpc_error(-4, "Wallet loading failed.", node_v17.loadwallet, 'w3_v18')
+
+ # Instead, we stop node and try to launch it with the wallet:
+ self.stop_node(self.num_nodes - 1)
+ node_v17.assert_start_raises_init_error(["-wallet=w3_v18"], "Error: Error loading w3_v18: Wallet requires newer version of Bitcoin Core")
+ node_v17.assert_start_raises_init_error(["-wallet=w3"], "Error: Error loading w3: Wallet requires newer version of Bitcoin Core")
+ self.start_node(self.num_nodes - 1)
+
+ self.log.info("Test wallet upgrade path...")
+ # u1: regular wallet, created with v0.17
+ node_v17.rpc.createwallet(wallet_name="u1_v17")
+ wallet = node_v17.get_wallet_rpc("u1_v17")
+ address = wallet.getnewaddress("bech32")
+ v17_info = wallet.getaddressinfo(address)
+ hdkeypath = v17_info["hdkeypath"]
+ pubkey = v17_info["pubkey"]
+
+ # Copy the 0.17 wallet to the last Bitcoin Core version and open it:
+ node_v17.unloadwallet("u1_v17")
+ shutil.copytree(
+ os.path.join(node_v17_wallets_dir, "u1_v17"),
+ os.path.join(node_master_wallets_dir, "u1_v17")
+ )
+ node_master.loadwallet("u1_v17")
+ wallet = node_master.get_wallet_rpc("u1_v17")
+ info = wallet.getaddressinfo(address)
+ descriptor = "wpkh([" + info["hdmasterfingerprint"] + hdkeypath[1:] + "]" + pubkey + ")"
+ assert_equal(info["desc"], descsum_create(descriptor))
+
+ # Now copy that same wallet back to 0.17 to make sure no automatic upgrade breaks it
+ node_master.unloadwallet("u1_v17")
+ shutil.rmtree(os.path.join(node_v17_wallets_dir, "u1_v17"))
+ shutil.copytree(
+ os.path.join(node_master_wallets_dir, "u1_v17"),
+ os.path.join(node_v17_wallets_dir, "u1_v17")
+ )
+ node_v17.loadwallet("u1_v17")
+ wallet = node_v17.get_wallet_rpc("u1_v17")
+ info = wallet.getaddressinfo(address)
+ assert_equal(info, v17_info)
+
+ # Copy the 0.19 wallet to the last Bitcoin Core version and open it:
+ shutil.copytree(
+ os.path.join(node_v19_wallets_dir, "w1_v19"),
+ os.path.join(node_master_wallets_dir, "w1_v19")
+ )
+ node_master.loadwallet("w1_v19")
+ wallet = node_master.get_wallet_rpc("w1_v19")
+ assert wallet.getaddressinfo(address_18075)["solvable"]
+
+ # Now copy that same wallet back to 0.19 to make sure no automatic upgrade breaks it
+ node_master.unloadwallet("w1_v19")
+ shutil.rmtree(os.path.join(node_v19_wallets_dir, "w1_v19"))
+ shutil.copytree(
+ os.path.join(node_master_wallets_dir, "w1_v19"),
+ os.path.join(node_v19_wallets_dir, "w1_v19")
+ )
+ node_v19.loadwallet("w1_v19")
+ wallet = node_v19.get_wallet_rpc("w1_v19")
+ assert wallet.getaddressinfo(address_18075)["solvable"]
+
+if __name__ == '__main__':
+ BackwardsCompatibilityTest().main()