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Merge #19502: Bugfix: Wallet: Soft-fail exceptions within ListWalletDir file checks

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24d2d3341d QA: wallet_multiwallet: Check that recursive symlink directory and wallet.dat loops are ignored (Luke Dashjr)
69f59af54d Bugfix: Wallet: Soft-fail exceptions within ListWalletDir file checks (Luke Dashjr)

Pull request description:

  Previously, an exception would be thrown, which could kill the node in some circumstances.

  Includes test changes to cause failure.

  Review with `?w=1`

ACKs for top commit:
  hebasto:
    re-ACK 24d2d3341d, rebased only since my [previous](https://github.com/bitcoin/bitcoin/pull/19502#pullrequestreview-520552944) review.
  promag:
    Tested ACK 24d2d3341d, test change fails on master.
  meshcollider:
    utACK 24d2d3341d

Tree-SHA512: f701f81b3aa3d3e15cee52ac9e7c31a73c0d8166e56bf077235294507cbcee099829fedc432a1c4b6d8780885f4e37897b44b980b08125771de3c849c000499e
This commit is contained in:
Samuel Dobson
2020-11-12 12:51:17 +13:00
parent d9f5132736 24d2d3341d
commit c2d8ba6265
2 changed files with 38 additions and 18 deletions
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39
src/wallet/walletutil.cpp
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@@ -49,26 +49,31 @@ std::vector<fs::path> ListWalletDir()
continue;
}
// Get wallet path relative to walletdir by removing walletdir from the wallet path.
// This can be replaced by boost::filesystem::lexically_relative once boost is bumped to 1.60.
const fs::path path = it->path().string().substr(offset);
try {
// Get wallet path relative to walletdir by removing walletdir from the wallet path.
// This can be replaced by boost::filesystem::lexically_relative once boost is bumped to 1.60.
const fs::path path = it->path().string().substr(offset);
if (it->status().type() == fs::directory_file &&
(ExistsBerkeleyDatabase(it->path()) || ExistsSQLiteDatabase(it->path()))) {
// Found a directory which contains wallet.dat btree file, add it as a wallet.
paths.emplace_back(path);
} else if (it.level() == 0 && it->symlink_status().type() == fs::regular_file && ExistsBerkeleyDatabase(it->path())) {
if (it->path().filename() == "wallet.dat") {
// Found top-level wallet.dat btree file, add top level directory ""
// as a wallet.
paths.emplace_back();
} else {
// Found top-level btree file not called wallet.dat. Current bitcoin
// software will never create these files but will allow them to be
// opened in a shared database environment for backwards compatibility.
// Add it to the list of available wallets.
if (it->status().type() == fs::directory_file &&
(ExistsBerkeleyDatabase(it->path()) || ExistsSQLiteDatabase(it->path()))) {
// Found a directory which contains wallet.dat btree file, add it as a wallet.
paths.emplace_back(path);
} else if (it.level() == 0 && it->symlink_status().type() == fs::regular_file && ExistsBerkeleyDatabase(it->path())) {
if (it->path().filename() == "wallet.dat") {
// Found top-level wallet.dat btree file, add top level directory ""
// as a wallet.
paths.emplace_back();
} else {
// Found top-level btree file not called wallet.dat. Current bitcoin
// software will never create these files but will allow them to be
// opened in a shared database environment for backwards compatibility.
// Add it to the list of available wallets.
paths.emplace_back(path);
}
}
} catch (const std::exception& e) {
LogPrintf("%s: Error scanning %s: %s\n", __func__, it->path().string(), e.what());
it.no_push();
}
}