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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2020 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <wallet/load.h>
#include <fs.h>
#include <interfaces/chain.h>
#include <scheduler.h>
#include <util/string.h>
#include <util/system.h>
#include <util/translation.h>
#include <wallet/wallet.h>
#include <wallet/walletdb.h>
#include <univalue.h>
bool VerifyWallets(interfaces::Chain& chain)
{
if (gArgs.IsArgSet("-walletdir")) {
fs::path wallet_dir = gArgs.GetArg("-walletdir", "");
boost::system::error_code error;
// The canonical path cleans the path, preventing >1 Berkeley environment instances for the same directory
fs::path canonical_wallet_dir = fs::canonical(wallet_dir, error);
if (error || !fs::exists(wallet_dir)) {
chain.initError(strprintf(_("Specified -walletdir \"%s\" does not exist"), wallet_dir.string()));
return false;
} else if (!fs::is_directory(wallet_dir)) {
chain.initError(strprintf(_("Specified -walletdir \"%s\" is not a directory"), wallet_dir.string()));
return false;
// The canonical path transforms relative paths into absolute ones, so we check the non-canonical version
} else if (!wallet_dir.is_absolute()) {
chain.initError(strprintf(_("Specified -walletdir \"%s\" is a relative path"), wallet_dir.string()));
return false;
}
gArgs.ForceSetArg("-walletdir", canonical_wallet_dir.string());
}
LogPrintf("Using wallet directory %s\n", GetWalletDir().string());
chain.initMessage(_("Verifying wallet(s)...").translated);
// For backwards compatibility if an unnamed top level wallet exists in the
// wallets directory, include it in the default list of wallets to load.
if (!gArgs.IsArgSet("wallet")) {
DatabaseOptions options;
DatabaseStatus status;
bilingual_str error_string;
options.require_existing = true;
options.verify = false;
if (MakeWalletDatabase("", options, status, error_string)) {
gArgs.LockSettings([&](util::Settings& settings) {
util::SettingsValue wallets(util::SettingsValue::VARR);
wallets.push_back(""); // Default wallet name is ""
settings.rw_settings["wallet"] = wallets;
});
}
}
// Keep track of each wallet absolute path to detect duplicates.
std::set<fs::path> wallet_paths;
for (const auto& wallet_file : gArgs.GetArgs("-wallet")) {
const fs::path path = fsbridge::AbsPathJoin(GetWalletDir(), wallet_file);
if (!wallet_paths.insert(path).second) {
chain.initWarning(strprintf(_("Ignoring duplicate -wallet %s."), wallet_file));
continue;
}
DatabaseOptions options;
DatabaseStatus status;
options.require_existing = true;
options.verify = true;
bilingual_str error_string;
if (!MakeWalletDatabase(wallet_file, options, status, error_string)) {
if (status == DatabaseStatus::FAILED_NOT_FOUND) {
chain.initWarning(Untranslated(strprintf("Skipping -wallet path that doesn't exist. %s\n", error_string.original)));
} else {
chain.initError(error_string);
return false;
}
}
}
return true;
}
bool LoadWallets(interfaces::Chain& chain)
{
try {
std::set<fs::path> wallet_paths;
for (const std::string& name : gArgs.GetArgs("-wallet")) {
if (!wallet_paths.insert(name).second) {
continue;
}
DatabaseOptions options;
DatabaseStatus status;
options.require_existing = true;
options.verify = false; // No need to verify, assuming verified earlier in VerifyWallets()
bilingual_str error;
std::vector<bilingual_str> warnings;
std::unique_ptr<WalletDatabase> database = MakeWalletDatabase(name, options, status, error);
if (!database && status == DatabaseStatus::FAILED_NOT_FOUND) {
continue;
}
std::shared_ptr<CWallet> pwallet = database ? CWallet::Create(chain, name, std::move(database), options.create_flags, error, warnings) : nullptr;
if (!warnings.empty()) chain.initWarning(Join(warnings, Untranslated("\n")));
if (!pwallet) {
chain.initError(error);
return false;
}
AddWallet(pwallet);
}
return true;
} catch (const std::runtime_error& e) {
chain.initError(Untranslated(e.what()));
return false;
}
}
void StartWallets(CScheduler& scheduler, const ArgsManager& args)
{
for (const std::shared_ptr<CWallet>& pwallet : GetWallets()) {
pwallet->postInitProcess();
}
// Schedule periodic wallet flushes and tx rebroadcasts
if (args.GetBoolArg("-flushwallet", DEFAULT_FLUSHWALLET)) {
scheduler.scheduleEvery(MaybeCompactWalletDB, std::chrono::milliseconds{500});
}
scheduler.scheduleEvery(MaybeResendWalletTxs, std::chrono::milliseconds{1000});
}
void FlushWallets()
{
for (const std::shared_ptr<CWallet>& pwallet : GetWallets()) {
pwallet->Flush();
}
}
void StopWallets()
{
for (const std::shared_ptr<CWallet>& pwallet : GetWallets()) {
pwallet->Close();
}
}
void UnloadWallets()
{
auto wallets = GetWallets();
while (!wallets.empty()) {
auto wallet = wallets.back();
wallets.pop_back();
std::vector<bilingual_str> warnings;
RemoveWallet(wallet, std::nullopt, warnings);
UnloadWallet(std::move(wallet));
}
}
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