mirror of https://github.com/lightninglabs/loop
Merge 273c57fa8c into ac8f146186
Slyghtning
2 weeks ago
committed by
GitHub
commit
5825f28a0b
@ -0,0 +1,44 @@
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package withdraw
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import (
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"context"
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"github.com/btcsuite/btcd/wire"
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"github.com/lightninglabs/loop/fsm"
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"github.com/lightninglabs/loop/staticaddr/address"
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"github.com/lightninglabs/loop/staticaddr/deposit"
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"github.com/lightninglabs/loop/staticaddr/script"
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"github.com/lightningnetwork/lnd/lnwallet"
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)
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const (
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IdLength = 32
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)
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// AddressManager handles fetching of address parameters.
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type AddressManager interface {
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// GetStaticAddressParameters returns the static address parameters.
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GetStaticAddressParameters(ctx context.Context) (*address.Parameters,
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error)
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// GetStaticAddress returns the deposit address for the given
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// client and server public keys.
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GetStaticAddress(ctx context.Context) (*script.StaticAddress, error)
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// ListUnspent returns a list of utxos at the static address.
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ListUnspent(ctx context.Context, minConfs,
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maxConfs int32) ([]*lnwallet.Utxo, error)
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}
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type DepositManager interface {
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GetActiveDepositsInState(stateFilter fsm.StateType) ([]*deposit.Deposit,
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error)
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AllOutpointsActiveDeposits(outpoints []wire.OutPoint,
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stateFilter fsm.StateType) ([]*deposit.Deposit, bool)
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TransitionDeposits(deposits []*deposit.Deposit, event fsm.EventType,
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expectedFinalState fsm.StateType) error
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UpdateDeposit(d *deposit.Deposit) error
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}
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@ -0,0 +1,728 @@
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package withdraw
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import (
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"context"
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"errors"
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"fmt"
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"reflect"
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"strings"
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"sync"
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"github.com/btcsuite/btcd/btcec/v2/schnorr/musig2"
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"github.com/btcsuite/btcd/btcutil"
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"github.com/btcsuite/btcd/chaincfg"
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"github.com/btcsuite/btcd/txscript"
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"github.com/btcsuite/btcd/wire"
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"github.com/btcsuite/btclog"
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"github.com/lightninglabs/lndclient"
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"github.com/lightninglabs/loop/staticaddr"
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"github.com/lightninglabs/loop/staticaddr/deposit"
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staticaddressrpc "github.com/lightninglabs/loop/swapserverrpc"
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"github.com/lightningnetwork/lnd/input"
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"github.com/lightningnetwork/lnd/lnrpc/walletrpc"
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"github.com/lightningnetwork/lnd/lnwallet"
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"github.com/lightningnetwork/lnd/lnwallet/chainfee"
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)
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var (
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// ErrWithdrawingInactiveDeposits is returned when the user tries to
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// withdraw inactive deposits.
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ErrWithdrawingInactiveDeposits = errors.New("deposits to be " +
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"withdrawn are unknown or inactive")
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// MinConfs is the minimum number of confirmations we require for a
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// deposit to be considered withdrawn.
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MinConfs int32 = 3
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// Is the default confirmation target for the fee estimation of the
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// withdrawal transaction.
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defaultConfTarget int32 = 3
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log btclog.Logger
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)
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// ManagerConfig holds the configuration for the address manager.
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type ManagerConfig struct {
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StaticAddressServerClient staticaddressrpc.StaticAddressServerClient
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AddressManager AddressManager
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DepositManager DepositManager
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// WalletKit is the wallet client that is used to derive new keys from
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// lnd's wallet.
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WalletKit lndclient.WalletKitClient
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// ChainParams is the chain configuration(mainnet, testnet...) this
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// manager uses.
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ChainParams *chaincfg.Params
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// ChainNotifier is the chain notifier that is used to listen for new
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// blocks.
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ChainNotifier lndclient.ChainNotifierClient
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// Signer is the signer client that is used to sign transactions.
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Signer lndclient.SignerClient
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}
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// Manager manages the address state machines.
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type Manager struct {
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cfg *ManagerConfig
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runCtx context.Context
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sync.Mutex
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// initChan signals the daemon that the address manager has completed
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// its initialization.
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initChan chan struct{}
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// initiationHeight stores the currently best known block height.
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initiationHeight uint32
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// currentHeight stores the currently best known block height.
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currentHeight uint32
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activeWithdrawals map[string][]*deposit.Deposit
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}
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// NewManager creates a new deposit withdrawal manager.
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func NewManager(cfg *ManagerConfig) *Manager {
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log = staticaddr.GetLogger()
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return &Manager{
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cfg: cfg,
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initChan: make(chan struct{}),
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activeWithdrawals: make(map[string][]*deposit.Deposit),
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}
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}
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// Run runs the deposit withdrawal manager.
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func (m *Manager) Run(ctx context.Context, currentHeight uint32) error {
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m.runCtx = ctx
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m.Lock()
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m.currentHeight, m.initiationHeight = currentHeight, currentHeight
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m.Unlock()
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newBlockChan, newBlockErrChan, err := m.cfg.ChainNotifier.RegisterBlockEpochNtfn(m.runCtx) //nolint:lll
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if err != nil {
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return err
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}
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err = m.recover()
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if err != nil {
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return err
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}
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// Communicate to the caller that the address manager has completed its
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// initialization.
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close(m.initChan)
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for {
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select {
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case height := <-newBlockChan:
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m.Lock()
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m.currentHeight = uint32(height)
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m.Unlock()
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err = m.republishWithdrawals()
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if err != nil {
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log.Errorf("Error republishing withdrawals: %v",
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err)
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}
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case err = <-newBlockErrChan:
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return err
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case <-m.runCtx.Done():
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return m.runCtx.Err()
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}
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}
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}
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func (m *Manager) recover() error {
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// To recover withdrawals we skim through all active deposits and check
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// if they have a withdrawal address set. For the ones that do we
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// cluster those with equal withdrawal addresses and kick-off
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// their withdrawal. Each cluster represents a separate withdrawal
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// intend by the user.
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activeDeposits, err := m.cfg.DepositManager.GetActiveDepositsInState(
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deposit.Deposited,
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)
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if err != nil {
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return err
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}
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// Group the deposits by their withdrawal address.
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depositsByWithdrawalAddress := make(map[string][]*deposit.Deposit)
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for _, d := range activeDeposits {
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sweepAddress := d.WithdrawalSweepAddress
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if sweepAddress == "" {
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continue
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}
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depositsByWithdrawalAddress[sweepAddress] = append(
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depositsByWithdrawalAddress[sweepAddress], d,
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)
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}
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// We can now reinstate each cluster of deposits for a withdrawal.
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for address, deposits := range depositsByWithdrawalAddress {
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withdrawalAddress, err := btcutil.DecodeAddress(
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address, m.cfg.ChainParams,
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)
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if err != nil {
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return err
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}
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err = m.cfg.DepositManager.TransitionDeposits(
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deposits, deposit.OnWithdraw, deposit.Withdrawing,
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)
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if err != nil {
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return err
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}
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err = m.publishWithdrawal(m.runCtx, deposits, withdrawalAddress)
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if err != nil {
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return err
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}
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err = m.handleWithdrawal(deposits, withdrawalAddress)
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if err != nil {
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return err
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}
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m.Lock()
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m.activeWithdrawals[address] = deposits
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m.Unlock()
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}
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return nil
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}
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// WaitInitComplete waits until the address manager has completed its setup.
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func (m *Manager) WaitInitComplete() {
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defer log.Debugf("Static address withdrawal manager initiation " +
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"complete.")
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<-m.initChan
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}
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// WithdrawDeposits starts a deposits withdrawal flow.
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func (m *Manager) WithdrawDeposits(ctx context.Context,
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outpoints []wire.OutPoint) error {
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if len(outpoints) == 0 {
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return fmt.Errorf("no outpoints selected to withdraw")
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}
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// Ensure that the deposits are in a state in which they can be
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// withdrawn.
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deposits, allActive := m.cfg.DepositManager.AllOutpointsActiveDeposits(
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outpoints, deposit.Deposited)
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if !allActive {
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return ErrWithdrawingInactiveDeposits
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}
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// Generate the withdrawal address from our local lnd wallet.
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withdrawalAddress, err := m.cfg.WalletKit.NextAddr(
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ctx, lnwallet.DefaultAccountName,
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walletrpc.AddressType_TAPROOT_PUBKEY, false,
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)
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if err != nil {
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return err
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}
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// Attach the withdrawal address to the deposits. After a client restart
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// we can use this address as an indicator to continue the withdrawal.
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// If there are multiple deposits with the same withdrawal address, we
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// bundle them together in the same withdrawal transaction.
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for _, d := range deposits {
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d.Lock()
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d.WithdrawalSweepAddress = withdrawalAddress.String()
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d.Unlock()
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}
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// Transition the deposits to the withdrawing state. This updates each
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// deposits withdrawal address. If a transition fails, we'll return an
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// error and abort the withdrawal. An error in transition is likely due
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// to an error in the state machine. The already transitioned deposits
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// should be reset to the Deposit state after a restart.
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err = m.cfg.DepositManager.TransitionDeposits(
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deposits, deposit.OnWithdraw, deposit.Withdrawing,
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)
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if err != nil {
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return err
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}
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err = m.publishWithdrawal(ctx, deposits, withdrawalAddress)
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if err != nil {
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return err
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}
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err = m.handleWithdrawal(deposits, withdrawalAddress)
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if err != nil {
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return err
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}
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m.Lock()
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m.activeWithdrawals[withdrawalAddress.String()] = deposits
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m.Unlock()
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return nil
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}
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func (m *Manager) publishWithdrawal(ctx context.Context,
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deposits []*deposit.Deposit, withdrawalAddress btcutil.Address) error {
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// Create a musig2 session for each deposit.
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withdrawalSessions, clientNonces, err := m.createMusig2Sessions(
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ctx, deposits,
|
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)
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if err != nil {
|
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return err
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}
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|
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// Get the fee rate for the withdrawal sweep.
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withdrawalSweepFeeRate, err := m.cfg.WalletKit.EstimateFeeRate(
|
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m.runCtx, defaultConfTarget,
|
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)
|
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if err != nil {
|
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return err
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}
|
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|
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outpoints := toOutpoints(deposits)
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||||
resp, err := m.cfg.StaticAddressServerClient.ServerWithdrawDeposits(
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m.runCtx, &staticaddressrpc.ServerWithdrawRequest{
|
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Outpoints: toServerOutpoints(outpoints),
|
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ClientNonces: clientNonces,
|
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ClientSweepAddr: withdrawalAddress.String(),
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TxFeeRate: uint64(withdrawalSweepFeeRate),
|
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},
|
||||
)
|
||||
if err != nil {
|
||||
return err
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||||
}
|
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|
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addressParams, err := m.cfg.AddressManager.GetStaticAddressParameters(
|
||||
ctx,
|
||||
)
|
||||
if err != nil {
|
||||
return fmt.Errorf("couldn't get confirmation height for "+
|
||||
"deposit, %v", err)
|
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}
|
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|
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prevOuts := m.toPrevOuts(deposits, addressParams.PkScript)
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totalValue := withdrawalValue(prevOuts)
|
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withdrawalTx, err := m.createWithdrawalTx(
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outpoints, totalValue, withdrawalAddress,
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withdrawalSweepFeeRate,
|
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)
|
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if err != nil {
|
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return err
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}
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|
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coopServerNonces, err := toNonces(resp.ServerNonces)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
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|
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// Next we'll get our sweep tx signatures.
|
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prevOutFetcher := txscript.NewMultiPrevOutFetcher(prevOuts)
|
||||
_, err = m.signMusig2Tx(
|
||||
m.runCtx, prevOutFetcher, outpoints, m.cfg.Signer, withdrawalTx,
|
||||
withdrawalSessions, coopServerNonces,
|
||||
)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Now we'll finalize the sweepless sweep transaction.
|
||||
finalizedWithdrawalTx, err := m.finalizeMusig2Transaction(
|
||||
m.runCtx, outpoints, m.cfg.Signer, withdrawalSessions,
|
||||
withdrawalTx, resp.Musig2SweepSigs,
|
||||
)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
txLabel := fmt.Sprintf("deposit-withdrawal-%v",
|
||||
finalizedWithdrawalTx.TxHash())
|
||||
|
||||
// Publish the withdrawal sweep transaction.
|
||||
err = m.cfg.WalletKit.PublishTransaction(
|
||||
m.runCtx, finalizedWithdrawalTx, txLabel,
|
||||
)
|
||||
|
||||
if err != nil {
|
||||
if !strings.Contains(err.Error(), "output already spent") {
|
||||
log.Errorf("%v: %v", txLabel, err)
|
||||
}
|
||||
|
||||
return err
|
||||
}
|
||||
|
||||
log.Debugf("published deposit withdrawal with txid: %v",
|
||||
finalizedWithdrawalTx.TxHash())
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *Manager) handleWithdrawal(deposits []*deposit.Deposit,
|
||||
withdrawalAddress btcutil.Address) error {
|
||||
|
||||
withdrawalPkScript, err := txscript.PayToAddrScript(withdrawalAddress)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
m.Lock()
|
||||
confChan, errChan, err := m.cfg.ChainNotifier.RegisterConfirmationsNtfn(
|
||||
m.runCtx, nil, withdrawalPkScript, MinConfs,
|
||||
int32(m.initiationHeight),
|
||||
)
|
||||
m.Unlock()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
go func() {
|
||||
select {
|
||||
case <-confChan:
|
||||
err = m.cfg.DepositManager.TransitionDeposits(
|
||||
deposits, deposit.OnWithdrawn,
|
||||
deposit.Withdrawn,
|
||||
)
|
||||
if err != nil {
|
||||
log.Errorf("Error transitioning deposits: %v",
|
||||
err)
|
||||
}
|
||||
|
||||
// Remove the withdrawal from the active withdrawals.
|
||||
m.Lock()
|
||||
delete(m.activeWithdrawals, withdrawalAddress.String())
|
||||
m.Unlock()
|
||||
|
||||
case err := <-errChan:
|
||||
log.Errorf("Error waiting for confirmation: %v", err)
|
||||
|
||||
case <-m.runCtx.Done():
|
||||
log.Errorf("Withdrawal tx confirmation wait canceled")
|
||||
}
|
||||
}()
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func toOutpoints(deposits []*deposit.Deposit) []wire.OutPoint {
|
||||
outpoints := make([]wire.OutPoint, len(deposits))
|
||||
for i, d := range deposits {
|
||||
outpoints[i] = wire.OutPoint{
|
||||
Hash: d.Hash,
|
||||
Index: d.Index,
|
||||
}
|
||||
}
|
||||
|
||||
return outpoints
|
||||
}
|
||||
|
||||
// signMusig2Tx adds the server nonces to the musig2 sessions and signs the
|
||||
// transaction.
|
||||
func (m *Manager) signMusig2Tx(ctx context.Context,
|
||||
prevOutFetcher *txscript.MultiPrevOutFetcher, outpoints []wire.OutPoint,
|
||||
signer lndclient.SignerClient, tx *wire.MsgTx,
|
||||
musig2sessions []*input.MuSig2SessionInfo,
|
||||
counterPartyNonces [][musig2.PubNonceSize]byte) ([][]byte, error) {
|
||||
|
||||
sigHashes := txscript.NewTxSigHashes(tx, prevOutFetcher)
|
||||
sigs := make([][]byte, len(outpoints))
|
||||
|
||||
for idx, outpoint := range outpoints {
|
||||
if !reflect.DeepEqual(tx.TxIn[idx].PreviousOutPoint,
|
||||
outpoint) {
|
||||
|
||||
return nil, fmt.Errorf("tx input does not match " +
|
||||
"deposits")
|
||||
}
|
||||
|
||||
taprootSigHash, err := txscript.CalcTaprootSignatureHash(
|
||||
sigHashes, txscript.SigHashDefault, tx, idx,
|
||||
prevOutFetcher,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
var digest [32]byte
|
||||
copy(digest[:], taprootSigHash)
|
||||
|
||||
// Register the server's nonce before attempting to create our
|
||||
// partial signature.
|
||||
haveAllNonces, err := signer.MuSig2RegisterNonces(
|
||||
ctx, musig2sessions[idx].SessionID,
|
||||
[][musig2.PubNonceSize]byte{counterPartyNonces[idx]},
|
||||
)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// Sanity check that we have all the nonces.
|
||||
if !haveAllNonces {
|
||||
return nil, fmt.Errorf("invalid MuSig2 session: " +
|
||||
"nonces missing")
|
||||
}
|
||||
|
||||
// Since our MuSig2 session has all nonces, we can now create
|
||||
// the local partial signature by signing the sig hash.
|
||||
sig, err := signer.MuSig2Sign(
|
||||
ctx, musig2sessions[idx].SessionID, digest, false,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
sigs[idx] = sig
|
||||
}
|
||||
|
||||
return sigs, nil
|
||||
}
|
||||
|
||||
func withdrawalValue(prevOuts map[wire.OutPoint]*wire.TxOut) btcutil.Amount {
|
||||
var totalValue btcutil.Amount
|
||||
for _, prevOut := range prevOuts {
|
||||
totalValue += btcutil.Amount(prevOut.Value)
|
||||
}
|
||||
return totalValue
|
||||
}
|
||||
|
||||
// toNonces converts a byte slice to a 66 byte slice.
|
||||
func toNonces(nonces [][]byte) ([][66]byte, error) {
|
||||
res := make([][66]byte, 0, len(nonces))
|
||||
for _, n := range nonces {
|
||||
n := n
|
||||
nonce, err := byteSliceTo66ByteSlice(n)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
res = append(res, nonce)
|
||||
}
|
||||
|
||||
return res, nil
|
||||
}
|
||||
|
||||
// byteSliceTo66ByteSlice converts a byte slice to a 66 byte slice.
|
||||
func byteSliceTo66ByteSlice(b []byte) ([66]byte, error) {
|
||||
if len(b) != 66 {
|
||||
return [66]byte{}, fmt.Errorf("invalid byte slice length")
|
||||
}
|
||||
|
||||
var res [66]byte
|
||||
copy(res[:], b)
|
||||
|
||||
return res, nil
|
||||
}
|
||||
|
||||
func (m *Manager) createWithdrawalTx(outpoints []wire.OutPoint,
|
||||
withdrawlAmount btcutil.Amount, clientSweepAddress btcutil.Address,
|
||||
feeRate chainfee.SatPerKWeight) (*wire.MsgTx,
|
||||
error) {
|
||||
|
||||
// First Create the tx.
|
||||
msgTx := wire.NewMsgTx(2)
|
||||
|
||||
// Add the deposit inputs to the transaction in the order the server
|
||||
// signed them.
|
||||
for _, outpoint := range outpoints {
|
||||
msgTx.AddTxIn(&wire.TxIn{
|
||||
PreviousOutPoint: outpoint,
|
||||
})
|
||||
}
|
||||
|
||||
// Estimate the fee.
|
||||
weight, err := withdrawalFee(len(outpoints), clientSweepAddress)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
pkscript, err := txscript.PayToAddrScript(clientSweepAddress)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
fee := feeRate.FeeForWeight(weight)
|
||||
|
||||
// Create the sweep output
|
||||
sweepOutput := &wire.TxOut{
|
||||
Value: int64(withdrawlAmount) - int64(fee),
|
||||
PkScript: pkscript,
|
||||
}
|
||||
|
||||
msgTx.AddTxOut(sweepOutput)
|
||||
|
||||
return msgTx, nil
|
||||
}
|
||||
|
||||
// withdrawalFee returns the weight for the withdrawal transaction.
|
||||
func withdrawalFee(numInputs int, sweepAddress btcutil.Address) (int64,
|
||||
error) {
|
||||
|
||||
var weightEstimator input.TxWeightEstimator
|
||||
for i := 0; i < numInputs; i++ {
|
||||
weightEstimator.AddTaprootKeySpendInput(
|
||||
txscript.SigHashDefault,
|
||||
)
|
||||
}
|
||||
|
||||
// Get the weight of the sweep output.
|
||||
switch sweepAddress.(type) {
|
||||
case *btcutil.AddressWitnessPubKeyHash:
|
||||
weightEstimator.AddP2WKHOutput()
|
||||
|
||||
case *btcutil.AddressTaproot:
|
||||
weightEstimator.AddP2TROutput()
|
||||
|
||||
default:
|
||||
return 0, fmt.Errorf("invalid sweep address type %T",
|
||||
sweepAddress)
|
||||
}
|
||||
|
||||
return int64(weightEstimator.Weight()), nil
|
||||
}
|
||||
|
||||
// finalizeMusig2Transaction creates the finalized transactions for either
|
||||
// the htlc or the cooperative close.
|
||||
func (m *Manager) finalizeMusig2Transaction(ctx context.Context,
|
||||
outpoints []wire.OutPoint, signer lndclient.SignerClient,
|
||||
musig2Sessions []*input.MuSig2SessionInfo,
|
||||
tx *wire.MsgTx, serverSigs [][]byte) (*wire.MsgTx, error) {
|
||||
|
||||
for idx := range outpoints {
|
||||
haveAllSigs, finalSig, err := signer.MuSig2CombineSig(
|
||||
ctx, musig2Sessions[idx].SessionID,
|
||||
[][]byte{serverSigs[idx]},
|
||||
)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
if !haveAllSigs {
|
||||
return nil, fmt.Errorf("missing sigs")
|
||||
}
|
||||
|
||||
tx.TxIn[idx].Witness = wire.TxWitness{finalSig}
|
||||
}
|
||||
|
||||
return tx, nil
|
||||
}
|
||||
|
||||
func toServerOutpoints(outpoints []wire.OutPoint) []*staticaddressrpc.ServerOutPoint { //nolint:lll
|
||||
var result []*staticaddressrpc.ServerOutPoint
|
||||
for _, o := range outpoints {
|
||||
outP := o
|
||||
outpoint := &staticaddressrpc.ServerOutPoint{
|
||||
TxidBytes: outP.Hash[:],
|
||||
OutputIndex: outP.Index,
|
||||
}
|
||||
result = append(result, outpoint)
|
||||
}
|
||||
|
||||
return result
|
||||
}
|
||||
|
||||
// createMusig2Sessions creates a musig2 session for a number of deposits.
|
||||
func (m *Manager) createMusig2Sessions(ctx context.Context,
|
||||
deposits []*deposit.Deposit) ([]*input.MuSig2SessionInfo, [][]byte,
|
||||
error) {
|
||||
|
||||
musig2Sessions := make([]*input.MuSig2SessionInfo, len(deposits))
|
||||
clientNonces := make([][]byte, len(deposits))
|
||||
|
||||
// Create the sessions and nonces from the deposits.
|
||||
for i := 0; i < len(deposits); i++ {
|
||||
session, err := m.createMusig2Session(ctx)
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
|
||||
musig2Sessions[i] = session
|
||||
clientNonces[i] = session.PublicNonce[:]
|
||||
}
|
||||
|
||||
return musig2Sessions, clientNonces, nil
|
||||
}
|
||||
|
||||
// Musig2CreateSession creates a musig2 session for the deposit.
|
||||
func (m *Manager) createMusig2Session(ctx context.Context) (
|
||||
*input.MuSig2SessionInfo, error) {
|
||||
|
||||
addressParams, err := m.cfg.AddressManager.GetStaticAddressParameters(
|
||||
ctx,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("couldn't get confirmation height for "+
|
||||
"deposit, %v", err)
|
||||
}
|
||||
|
||||
signers := [][]byte{
|
||||
addressParams.ClientPubkey.SerializeCompressed(),
|
||||
addressParams.ServerPubkey.SerializeCompressed(),
|
||||
}
|
||||
|
||||
address, err := m.cfg.AddressManager.GetStaticAddress(ctx)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("couldn't get confirmation height for "+
|
||||
"deposit, %v", err)
|
||||
}
|
||||
|
||||
expiryLeaf := address.TimeoutLeaf
|
||||
|
||||
rootHash := expiryLeaf.TapHash()
|
||||
|
||||
return m.cfg.Signer.MuSig2CreateSession(
|
||||
ctx, input.MuSig2Version100RC2, &addressParams.KeyLocator,
|
||||
signers, lndclient.MuSig2TaprootTweakOpt(rootHash[:], false),
|
||||
)
|
||||
}
|
||||
|
||||
func (m *Manager) toPrevOuts(deposits []*deposit.Deposit,
|
||||
pkScript []byte) map[wire.OutPoint]*wire.TxOut {
|
||||
|
||||
prevOuts := make(map[wire.OutPoint]*wire.TxOut, len(deposits))
|
||||
for _, d := range deposits {
|
||||
outpoint := wire.OutPoint{
|
||||
Hash: d.Hash,
|
||||
Index: d.Index,
|
||||
}
|
||||
txOut := &wire.TxOut{
|
||||
Value: int64(d.Value),
|
||||
PkScript: pkScript,
|
||||
}
|
||||
prevOuts[outpoint] = txOut
|
||||
}
|
||||
|
||||
return prevOuts
|
||||
}
|
||||
|
||||
func (m *Manager) republishWithdrawals() error {
|
||||
for withdrawalAddress, deposits := range m.activeWithdrawals {
|
||||
address, err := btcutil.DecodeAddress(
|
||||
withdrawalAddress, m.cfg.ChainParams,
|
||||
)
|
||||
if err != nil {
|
||||
log.Errorf("Error decoding withdrawal address: %v", err)
|
||||
|
||||
return err
|
||||
}
|
||||
|
||||
err = m.publishWithdrawal(m.runCtx, deposits, address)
|
||||
if err != nil {
|
||||
log.Errorf("Error republishing withdrawal: %v", err)
|
||||
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
Loading…
Reference in New Issue