lnd version, "hacked" to enable seedless restore from xprv + scb
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package btcwallet
import (
"path/filepath"
"time"
"github.com/btcsuite/btcd/chaincfg"
"github.com/btcsuite/btcd/wire"
"github.com/btcsuite/btcwallet/chain"
"github.com/btcsuite/btcwallet/wallet"
)
var (
// defaultPubPassphrase is the default public wallet passphrase which is
// used when the user indicates they do not want additional protection
// provided by having all public data in the wallet encrypted by a
// passphrase only known to them.
defaultPubPassphrase = []byte("public")
)
// Config is a struct which houses configuration parameters which modify the
// instance of BtcWallet generated by the New() function.
type Config struct {
// LogDir is the name of the directory which should be used to store
// generated log files.
LogDir string
// PrivatePass is the private password to the underlying btcwallet
// instance. Without this, the wallet cannot be decrypted and operated.
PrivatePass []byte
// PublicPass is the optional public password to btcwallet. This is
// optionally used to encrypt public material such as public keys and
// scripts.
PublicPass []byte
// HdSeed is an optional seed to feed into the wallet. If this is
// unspecified, a new seed will be generated.
HdSeed []byte
// Birthday specifies the time at which this wallet was initially
// created. It is used to bound rescans for used addresses.
Birthday time.Time
// RecoveryWindow specifies the address look-ahead for which to scan
// when restoring a wallet. The recovery window will apply to all
// default BIP44 derivation paths.
RecoveryWindow uint32
// ChainSource is the primary chain interface. This is used to operate
// the wallet and do things such as rescanning, sending transactions,
// notifications for received funds, etc.
ChainSource chain.Interface
// NetParams is the net parameters for the target chain.
NetParams *chaincfg.Params
// CoinType specifies the BIP 44 coin type to be used for derivation.
CoinType uint32
// Wallet is an unlocked wallet instance that is set if the
// UnlockerService has already opened and unlocked the wallet. If this
// is nil, then a wallet might have just been created or is simply not
// encrypted at all, in which case it should be attempted to be loaded
// normally when creating the BtcWallet.
Wallet *wallet.Wallet
// LoaderOptions holds functional wallet db loader options.
LoaderOptions []LoaderOption
// CoinSelectionStrategy is the strategy that is used for selecting
// coins when funding a transaction.
CoinSelectionStrategy wallet.CoinSelectionStrategy
}
// NetworkDir returns the directory name of a network directory to hold wallet
// files.
func NetworkDir(dataDir string, chainParams *chaincfg.Params) string {
netname := chainParams.Name
// For now, we must always name the testnet data directory as "testnet"
// and not "testnet3" or any other version, as the chaincfg testnet3
// parameters will likely be switched to being named "testnet3" in the
// future. This is done to future proof that change, and an upgrade
// plan to move the testnet3 data directory can be worked out later.
if chainParams.Net == wire.TestNet3 {
netname = "testnet"
}
return filepath.Join(dataDir, netname)
}