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Merge #20186: wallet: Make -wallet setting not create wallets

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01476a88a6 wallet: Make -wallet setting not create wallets (Russell Yanofsky)

Pull request description:

  This changes `-wallet` setting to only load existing wallets, not create new ones.

  - Fixes settings.json corner cases reported by sjors & promag: https://github.com/bitcoin-core/gui/issues/95, https://github.com/bitcoin/bitcoin/pull/19754#issuecomment-685858578, https://github.com/bitcoin/bitcoin/pull/19754#issuecomment-685858578

  - Prevents accidental creation of wallets reported most recently by jb55 http://www.erisian.com.au/bitcoin-core-dev/log-2020-09-14.html#l-355

  - Simplifies behavior after #15454. #15454 took the big step of disabling creation of the default wallet. This PR extends it to avoid creating other wallets as well. With this change, new wallets just aren't created on startup, instead of sometimes being created, sometimes not. #15454 release notes are updated here and are simpler.

  This change should be targeted for 0.21.0. It's a bug fix and simplifies behavior of the #15937 / #19754 / #15454 features added in 0.21.0.

  ---

  This PR is implementing the simplest, most basic alternative listed in https://github.com/bitcoin-core/gui/issues/95#issuecomment-694236940. Other improvements mentioned there can build on top of this.

ACKs for top commit:
  achow101:
    ACK 01476a88a6
  hebasto:
    re-ACK 01476a88a6
  MarcoFalke:
    review ACK 01476a88a6 🏂

Tree-SHA512: 0d50f4e5dfbd04a2efd9fd66c02085a0ed705807bdec1cf5770d0ae8cb6af07080fb81306349937bf66acdb713d03fb35636f6442b650d0820e66cbae09c2f87
This commit is contained in:
MarcoFalke
2020-10-29 15:01:26 +01:00
parent 8e9e190ea5 01476a88a6
commit 42b66a6b81
10 changed files with 76 additions and 40 deletions
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2
src/wallet/init.cpp
View File

@@ -60,7 +60,7 @@ void WalletInit::AddWalletOptions(ArgsManager& argsman) const
argsman.AddArg("-rescan", "Rescan the block chain for missing wallet transactions on startup", ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
argsman.AddArg("-spendzeroconfchange", strprintf("Spend unconfirmed change when sending transactions (default: %u)", DEFAULT_SPEND_ZEROCONF_CHANGE), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
argsman.AddArg("-txconfirmtarget=<n>", strprintf("If paytxfee is not set, include enough fee so transactions begin confirmation on average within n blocks (default: %u)", DEFAULT_TX_CONFIRM_TARGET), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
argsman.AddArg("-wallet=<path>", "Specify wallet database path. Can be specified multiple times to load multiple wallets. Path is interpreted relative to <walletdir> if it is not absolute, and will be created if it does not exist (as a directory containing a wallet.dat file and log files). For backwards compatibility this will also accept names of existing data files in <walletdir>.)", ArgsManager::ALLOW_ANY | ArgsManager::NETWORK_ONLY, OptionsCategory::WALLET);
argsman.AddArg("-wallet=<path>", "Specify wallet path to load at startup. Can be used multiple times to load multiple wallets. Path is to a directory containing wallet data and log files. If the path is not absolute, it is interpreted relative to <walletdir>. This only loads existing wallets and does not create new ones. For backwards compatibility this also accepts names of existing top-level data files in <walletdir>.", ArgsManager::ALLOW_ANY | ArgsManager::NETWORK_ONLY, OptionsCategory::WALLET);
argsman.AddArg("-walletbroadcast", strprintf("Make the wallet broadcast transactions (default: %u)", DEFAULT_WALLETBROADCAST), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
argsman.AddArg("-walletdir=<dir>", "Specify directory to hold wallets (default: <datadir>/wallets if it exists, otherwise <datadir>)", ArgsManager::ALLOW_ANY | ArgsManager::NETWORK_ONLY, OptionsCategory::WALLET);
#if HAVE_SYSTEM

13
src/wallet/load.cpp
View File

@@ -71,11 +71,16 @@ bool VerifyWallets(interfaces::Chain& chain)
DatabaseOptions options;
DatabaseStatus status;
options.require_existing = true;
options.verify = true;
bilingual_str error_string;
if (!MakeWalletDatabase(wallet_file, options, status, error_string)) {
chain.initError(error_string);
return false;
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;
}
}
}
@@ -88,10 +93,14 @@ bool LoadWallets(interfaces::Chain& chain)
for (const std::string& name : gArgs.GetArgs("-wallet")) {
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) {