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Merge bitcoin/bitcoin#22541: Add a new RPC command: restorewallet
5fe8100ff36fed6d50c2a25b028f57b25af3504c Change the wallet_backup.py test to use the restorewallet RPC command instead of restoring wallets manually. (lsilva01)
ae23faba6fc5cabc896f1175456d1018576f912d Add a new RPC command: restorewallet (lsilva01)
Pull request description:
As far as I know, there is no command to restore the wallet from a backup file.
The only way to do this is to replace the `wallet.dat` of a newly created wallet with the backup file, which is hardly an intuitive way.
This PR implements the `restorewallet` RPC command which restores the wallet from the backup file.
To test:
First create a backup file:
`$ bitcoin-cli -rpcwallet="wallet-01" backupwallet /home/Backups/wallet-01.bak`
Then restore it in another wallet:
`$ bitcoin-cli restorewallet "restored-wallet-01" /home/Backups/wallet-01.bak`
ACKs for top commit:
achow101:
re-ACK 5fe8100ff36fed6d50c2a25b028f57b25af3504c
prayank23:
tACK 5fe8100ff3
meshcollider:
utACK 5fe8100ff36fed6d50c2a25b028f57b25af3504c
Tree-SHA512: 9639df4d8ad32f255f5b868320dc69878bd9aceb3b471b49dfad500b67681e2d354292b5410982fbf18e25a44ed0c06fd4a0dd010e82807c2e00ff32e84047a1
This commit is contained in:
Samuel Dobson
pasta
parent
c99fe37702
commit
783a6bd842
@ -215,6 +215,7 @@ static const CRPCConvertParam vRPCConvertParams[] =
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{ "createwallet", 4, "avoid_reuse"},
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{ "createwallet", 5, "descriptors"},
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{ "createwallet", 6, "load_on_startup"},
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{ "restorewallet", 2, "load_on_startup"},
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{ "loadwallet", 1, "load_on_startup"},
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{ "unloadwallet", 1, "load_on_startup"},
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{ "upgradetohd", 3, "rescan"},
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@ -2742,6 +2742,37 @@ static RPCHelpMan listwallets()
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};
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}
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static std::tuple<std::shared_ptr<CWallet>, std::vector<bilingual_str>> LoadWalletHelper(WalletContext& context, UniValue load_on_start_param, const std::string wallet_name)
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{
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DatabaseOptions options;
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DatabaseStatus status;
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options.require_existing = true;
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bilingual_str error;
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std::vector<bilingual_str> warnings;
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std::optional<bool> load_on_start = load_on_start_param.isNull() ? std::nullopt : std::optional<bool>(load_on_start_param.get_bool());
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std::shared_ptr<CWallet> const wallet = LoadWallet(*context.chain, *context.m_coinjoin_loader, wallet_name, load_on_start, options, status, error, warnings);
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if (!wallet) {
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// Map bad format to not found, since bad format is returned when the
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// wallet directory exists, but doesn't contain a data file.
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RPCErrorCode code = RPC_WALLET_ERROR;
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switch (status) {
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case DatabaseStatus::FAILED_NOT_FOUND:
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case DatabaseStatus::FAILED_BAD_FORMAT:
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code = RPC_WALLET_NOT_FOUND;
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break;
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case DatabaseStatus::FAILED_ALREADY_LOADED:
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code = RPC_WALLET_ALREADY_LOADED;
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break;
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default: // RPC_WALLET_ERROR is returned for all other cases.
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break;
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}
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throw JSONRPCError(code, error.original);
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}
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return { wallet, warnings };
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}
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static RPCHelpMan upgradetohd()
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{
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return RPCHelpMan{"upgradetohd",
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@ -2863,30 +2894,7 @@ static RPCHelpMan loadwallet()
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WalletContext& context = EnsureWalletContext(request.context);
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const std::string name(request.params[0].get_str());
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DatabaseOptions options;
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DatabaseStatus status;
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options.require_existing = true;
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bilingual_str error;
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std::vector<bilingual_str> warnings;
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std::optional<bool> load_on_start = request.params[1].isNull() ? std::nullopt : std::optional<bool>(request.params[1].get_bool());
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std::shared_ptr<CWallet> const wallet = LoadWallet(*context.chain, *context.m_coinjoin_loader, name, load_on_start, options, status, error, warnings);
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if (!wallet) {
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// Map bad format to not found, since bad format is returned when the
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// wallet directory exists, but doesn't contain a data file.
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RPCErrorCode code = RPC_WALLET_ERROR;
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switch (status) {
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case DatabaseStatus::FAILED_NOT_FOUND:
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case DatabaseStatus::FAILED_BAD_FORMAT:
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code = RPC_WALLET_NOT_FOUND;
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break;
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case DatabaseStatus::FAILED_ALREADY_LOADED:
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code = RPC_WALLET_ALREADY_LOADED;
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break;
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default: // RPC_WALLET_ERROR is returned for all other cases.
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break;
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}
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throw JSONRPCError(code, error.original);
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}
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auto [wallet, warnings] = LoadWalletHelper(context, request.params[1], name);
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UniValue obj(UniValue::VOBJ);
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obj.pushKV("name", wallet->GetName());
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@ -3054,6 +3062,68 @@ static RPCHelpMan createwallet()
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};
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}
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static RPCHelpMan restorewallet()
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{
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return RPCHelpMan{
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"restorewallet",
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"\nRestore and loads a wallet from backup.\n",
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{
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{"wallet_name", RPCArg::Type::STR, RPCArg::Optional::NO, "The name that will be applied to the restored wallet"},
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{"backup_file", RPCArg::Type::STR, RPCArg::Optional::NO, "The backup file that will be used to restore the wallet."},
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{"load_on_startup", RPCArg::Type::BOOL, RPCArg::Optional::OMITTED_NAMED_ARG, "Save wallet name to persistent settings and load on startup. True to add wallet to startup list, false to remove, null to leave unchanged."},
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},
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RPCResult{
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RPCResult::Type::OBJ, "", "",
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{
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{RPCResult::Type::STR, "name", "The wallet name if restored successfully."},
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{RPCResult::Type::STR, "warning", "Warning message if wallet was not loaded cleanly."},
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}
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},
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RPCExamples{
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HelpExampleCli("restorewallet", "\"testwallet\" \"home\\backups\\backup-file.bak\"")
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+ HelpExampleRpc("restorewallet", "\"testwallet\" \"home\\backups\\backup-file.bak\"")
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+ HelpExampleCliNamed("restorewallet", {{"wallet_name", "testwallet"}, {"backup_file", "home\\backups\\backup-file.bak\""}, {"load_on_startup", true}})
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+ HelpExampleRpcNamed("restorewallet", {{"wallet_name", "testwallet"}, {"backup_file", "home\\backups\\backup-file.bak\""}, {"load_on_startup", true}})
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},
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[&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
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{
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WalletContext& context = EnsureWalletContext(request.context);
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std::string backup_file = request.params[1].get_str();
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if (!fs::exists(backup_file)) {
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throw JSONRPCError(RPC_INVALID_PARAMETER, "Backup file does not exist");
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}
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std::string wallet_name = request.params[0].get_str();
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const fs::path wallet_path = fsbridge::AbsPathJoin(GetWalletDir(), wallet_name);
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if (fs::exists(wallet_path)) {
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throw JSONRPCError(RPC_INVALID_PARAMETER, "Wallet name already exists.");
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}
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if (!TryCreateDirectories(wallet_path)) {
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throw JSONRPCError(RPC_WALLET_ERROR, strprintf("Failed to create database path '%s'. Database already exists.", wallet_path.string()));
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}
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auto wallet_file = wallet_path / "wallet.dat";
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fs::copy_file(backup_file, wallet_file, fs::copy_option::fail_if_exists);
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auto [wallet, warnings] = LoadWalletHelper(context, request.params[2], wallet_name);
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UniValue obj(UniValue::VOBJ);
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obj.pushKV("name", wallet->GetName());
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obj.pushKV("warning", Join(warnings, Untranslated("\n")).original);
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return obj;
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},
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};
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}
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static RPCHelpMan unloadwallet()
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{
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return RPCHelpMan{"unloadwallet",
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@ -4638,6 +4708,7 @@ static const CRPCCommand commands[] =
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{ "wallet", "addmultisigaddress", &addmultisigaddress, {"nrequired","keys","label"} },
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{ "wallet", "backupwallet", &backupwallet, {"destination"} },
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{ "wallet", "createwallet", &createwallet, {"wallet_name", "disable_private_keys", "blank", "passphrase", "avoid_reuse", "descriptors", "load_on_startup"} },
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{ "wallet", "restorewallet", &restorewallet, {"wallet_name","backup_file", "load_on_startup"} },
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{ "wallet", "dumphdinfo", &dumphdinfo, {} },
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{ "wallet", "dumpprivkey", &dumpprivkey, {"address"} },
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{ "wallet", "dumpwallet", &dumpwallet, {"filename"} },
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@ -107,6 +107,18 @@ class WalletBackupTest(BitcoinTestFramework):
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os.remove(os.path.join(self.nodes[1].datadir, self.chain, 'wallets', self.default_wallet_name, self.wallet_data_filename))
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os.remove(os.path.join(self.nodes[2].datadir, self.chain, 'wallets', self.default_wallet_name, self.wallet_data_filename))
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def restore_nonexistent_wallet(self):
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node = self.nodes[3]
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nonexistent_wallet_file = os.path.join(self.nodes[0].datadir, 'nonexistent_wallet.bak')
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wallet_name = "res0"
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assert_raises_rpc_error(-8, "Backup file does not exist", node.restorewallet, wallet_name, nonexistent_wallet_file)
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def restore_wallet_existent_name(self):
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node = self.nodes[3]
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wallet_file = os.path.join(self.nodes[0].datadir, 'wallet.bak')
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wallet_name = "res0"
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assert_raises_rpc_error(-8, "Wallet name already exists.", node.restorewallet, wallet_name, wallet_file)
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def init_three(self):
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self.init_wallet(0)
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self.init_wallet(1)
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@ -165,28 +177,27 @@ class WalletBackupTest(BitcoinTestFramework):
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##
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# Test restoring spender wallets from backups
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##
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self.log.info("Restoring using wallet.dat")
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self.stop_three()
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self.erase_three()
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self.log.info("Restoring wallets on node 3 using backup files")
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# Start node2 with no chain
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shutil.rmtree(os.path.join(self.nodes[2].datadir, self.chain, 'blocks'))
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shutil.rmtree(os.path.join(self.nodes[2].datadir, self.chain, 'chainstate'))
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shutil.rmtree(os.path.join(self.nodes[2].datadir, self.chain, 'evodb'))
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shutil.rmtree(os.path.join(self.nodes[2].datadir, self.chain, 'llmq'))
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self.restore_nonexistent_wallet()
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# Restore wallets from backup
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shutil.copyfile(os.path.join(self.nodes[0].datadir, 'wallet.bak'), os.path.join(self.nodes[0].datadir, self.chain, 'wallets', self.default_wallet_name, self.wallet_data_filename))
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shutil.copyfile(os.path.join(self.nodes[1].datadir, 'wallet.bak'), os.path.join(self.nodes[1].datadir, self.chain, 'wallets', self.default_wallet_name, self.wallet_data_filename))
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shutil.copyfile(os.path.join(self.nodes[2].datadir, 'wallet.bak'), os.path.join(self.nodes[2].datadir, self.chain, 'wallets', self.default_wallet_name, self.wallet_data_filename))
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backup_file_0 = os.path.join(self.nodes[0].datadir, 'wallet.bak')
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backup_file_1 = os.path.join(self.nodes[1].datadir, 'wallet.bak')
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backup_file_2 = os.path.join(self.nodes[2].datadir, 'wallet.bak')
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self.log.info("Re-starting nodes")
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self.start_three()
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self.sync_blocks()
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self.nodes[3].restorewallet("res0", backup_file_0)
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self.nodes[3].restorewallet("res1", backup_file_1)
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self.nodes[3].restorewallet("res2", backup_file_2)
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assert_equal(self.nodes[0].getbalance(), balance0)
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assert_equal(self.nodes[1].getbalance(), balance1)
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assert_equal(self.nodes[2].getbalance(), balance2)
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res0_rpc = self.nodes[3].get_wallet_rpc("res0")
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res1_rpc = self.nodes[3].get_wallet_rpc("res1")
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res2_rpc = self.nodes[3].get_wallet_rpc("res2")
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assert_equal(res0_rpc.getbalance(), balance0)
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assert_equal(res1_rpc.getbalance(), balance1)
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assert_equal(res2_rpc.getbalance(), balance2)
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self.restore_wallet_existent_name()
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if not self.options.descriptors:
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self.log.info("Restoring using dumped wallet")
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