mirror of
https://github.com/bitcoin/bitcoin.git
synced 2025-04-29 14:59:39 -04:00
1bbf46e2da
When given a descriptor which contins a multipath derivation specifier, a vector of descriptors will be returned.
102 lines
3 KiB
C++
102 lines
3 KiB
C++
// Copyright (c) 2017-2022 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/walletutil.h>
|
|
|
|
#include <chainparams.h>
|
|
#include <common/args.h>
|
|
#include <key_io.h>
|
|
#include <logging.h>
|
|
|
|
namespace wallet {
|
|
fs::path GetWalletDir()
|
|
{
|
|
fs::path path;
|
|
|
|
if (gArgs.IsArgSet("-walletdir")) {
|
|
path = gArgs.GetPathArg("-walletdir");
|
|
if (!fs::is_directory(path)) {
|
|
// If the path specified doesn't exist, we return the deliberately
|
|
// invalid empty string.
|
|
path = "";
|
|
}
|
|
} else {
|
|
path = gArgs.GetDataDirNet();
|
|
// If a wallets directory exists, use that, otherwise default to GetDataDir
|
|
if (fs::is_directory(path / "wallets")) {
|
|
path /= "wallets";
|
|
}
|
|
}
|
|
|
|
return path;
|
|
}
|
|
|
|
bool IsFeatureSupported(int wallet_version, int feature_version)
|
|
{
|
|
return wallet_version >= feature_version;
|
|
}
|
|
|
|
WalletFeature GetClosestWalletFeature(int version)
|
|
{
|
|
static constexpr std::array wallet_features{FEATURE_LATEST, FEATURE_PRE_SPLIT_KEYPOOL, FEATURE_NO_DEFAULT_KEY, FEATURE_HD_SPLIT, FEATURE_HD, FEATURE_COMPRPUBKEY, FEATURE_WALLETCRYPT, FEATURE_BASE};
|
|
for (const WalletFeature& wf : wallet_features) {
|
|
if (version >= wf) return wf;
|
|
}
|
|
return static_cast<WalletFeature>(0);
|
|
}
|
|
|
|
WalletDescriptor GenerateWalletDescriptor(const CExtPubKey& master_key, const OutputType& addr_type, bool internal)
|
|
{
|
|
int64_t creation_time = GetTime();
|
|
|
|
std::string xpub = EncodeExtPubKey(master_key);
|
|
|
|
// Build descriptor string
|
|
std::string desc_prefix;
|
|
std::string desc_suffix = "/*)";
|
|
switch (addr_type) {
|
|
case OutputType::LEGACY: {
|
|
desc_prefix = "pkh(" + xpub + "/44h";
|
|
break;
|
|
}
|
|
case OutputType::P2SH_SEGWIT: {
|
|
desc_prefix = "sh(wpkh(" + xpub + "/49h";
|
|
desc_suffix += ")";
|
|
break;
|
|
}
|
|
case OutputType::BECH32: {
|
|
desc_prefix = "wpkh(" + xpub + "/84h";
|
|
break;
|
|
}
|
|
case OutputType::BECH32M: {
|
|
desc_prefix = "tr(" + xpub + "/86h";
|
|
break;
|
|
}
|
|
case OutputType::UNKNOWN: {
|
|
// We should never have a DescriptorScriptPubKeyMan for an UNKNOWN OutputType,
|
|
// so if we get to this point something is wrong
|
|
assert(false);
|
|
}
|
|
} // no default case, so the compiler can warn about missing cases
|
|
assert(!desc_prefix.empty());
|
|
|
|
// Mainnet derives at 0', testnet and regtest derive at 1'
|
|
if (Params().IsTestChain()) {
|
|
desc_prefix += "/1h";
|
|
} else {
|
|
desc_prefix += "/0h";
|
|
}
|
|
|
|
std::string internal_path = internal ? "/1" : "/0";
|
|
std::string desc_str = desc_prefix + "/0h" + internal_path + desc_suffix;
|
|
|
|
// Make the descriptor
|
|
FlatSigningProvider keys;
|
|
std::string error;
|
|
std::vector<std::unique_ptr<Descriptor>> desc = Parse(desc_str, keys, error, false);
|
|
WalletDescriptor w_desc(std::move(desc.at(0)), creation_time, 0, 0, 0);
|
|
return w_desc;
|
|
}
|
|
|
|
} // namespace wallet
|