Merge pull request #708 from sputn1ck/listinstantouts

Add `listinstantouts` command

cmd/loop/instantout.go

@@ -202,3 +202,31 @@ func instantOut(ctx *cli.Context) error {
 
 	return nil
 }
+
+var listInstantOutsCommand = cli.Command{
+	Name:  "listinstantouts",
+	Usage: "list all instant out swaps",
+	Description: `
+	List all instant out swaps.
+	`,
+	Action: listInstantOuts,
+}
+
+func listInstantOuts(ctx *cli.Context) error {
+	// First set up the swap client itself.
+	client, cleanup, err := getClient(ctx)
+	if err != nil {
+		return err
+	}
+	defer cleanup()
+
+	resp, err := client.ListInstantOuts(
+		context.Background(), &looprpc.ListInstantOutsRequest{},
+	)
+	if err != nil {
+		return err
+	}
+
+	printRespJSON(resp)
+	return nil
+}

cmd/loop/main.go

@@ -148,7 +148,7 @@ func main() {
 		listSwapsCommand, swapInfoCommand, getLiquidityParamsCommand,
 		setLiquidityRuleCommand, suggestSwapCommand, setParamsCommand,
 		getInfoCommand, abandonSwapCommand, reservationsCommands,
-		instantOutCommand,
+		instantOutCommand, listInstantOutsCommand,
 	}
 
 	err := app.Run(os.Args)

instantout/actions.go

@@ -185,13 +185,13 @@ func (f *FSM) InitInstantOutAction(eventCtx fsm.EventContext) fsm.EventType {
 		protocolVersion:  ProtocolVersionFullReservation,
 		initiationHeight: initCtx.initationHeight,
 		outgoingChanSet:  initCtx.outgoingChanSet,
-		cltvExpiry:       initCtx.cltvExpiry,
+		CltvExpiry:       initCtx.cltvExpiry,
 		clientPubkey:     keyRes.PubKey,
 		serverPubkey:     serverPubkey,
-		value:            btcutil.Amount(reservationAmt),
+		Value:            btcutil.Amount(reservationAmt),
 		htlcFeeRate:      feeRate,
 		swapInvoice:      instantOutResponse.SwapInvoice,
-		reservations:     reservations,
+		Reservations:     reservations,
 		keyLocator:       keyRes.KeyLocator,
 		sweepAddress:     sweepAddress,
 	}
@@ -211,7 +211,7 @@ func (f *FSM) InitInstantOutAction(eventCtx fsm.EventContext) fsm.EventType {
 func (f *FSM) PollPaymentAcceptedAction(_ fsm.EventContext) fsm.EventType {
 	// Now that we're doing the swap, we first lock the reservations
 	// so that they can't be used for other swaps.
-	for _, reservation := range f.InstantOut.reservations {
+	for _, reservation := range f.InstantOut.Reservations {
 		err := f.cfg.ReservationManager.LockReservation(
 			f.ctx, reservation.ID,
 		)
@@ -227,7 +227,7 @@ func (f *FSM) PollPaymentAcceptedAction(_ fsm.EventContext) fsm.EventType {
 			Invoice:  f.InstantOut.swapInvoice,
 			Timeout:  defaultSendpaymentTimeout,
 			MaxParts: defaultMaxParts,
-			MaxFee:   getMaxRoutingFee(f.InstantOut.value),
+			MaxFee:   getMaxRoutingFee(f.InstantOut.Value),
 		},
 	)
 	if err != nil {
@@ -301,7 +301,7 @@ func (f *FSM) BuildHTLCAction(eventCtx fsm.EventContext) fsm.EventType {
 		return f.handleErrorAndUnlockReservations(err)
 	}
 
-	if len(htlcInitRes.HtlcServerNonces) != len(f.InstantOut.reservations) {
+	if len(htlcInitRes.HtlcServerNonces) != len(f.InstantOut.Reservations) {
 		return f.handleErrorAndUnlockReservations(
 			errors.New("invalid number of server nonces"),
 		)
@@ -435,8 +435,8 @@ func (f *FSM) PushPreimageAction(eventCtx fsm.EventContext) fsm.EventType {
 		return OnErrorPublishHtlc
 	}
 
-	f.InstantOut.finalizedSweeplessSweepTx = sweepTx
-	txHash := f.InstantOut.finalizedSweeplessSweepTx.TxHash()
+	f.InstantOut.FinalizedSweeplessSweepTx = sweepTx
+	txHash := f.InstantOut.FinalizedSweeplessSweepTx.TxHash()
 
 	f.InstantOut.SweepTxHash = &txHash
 
@@ -598,7 +598,7 @@ func (f *FSM) handleErrorAndUnlockReservations(err error) fsm.EventType {
 	defer cancel()
 
 	// Unlock the reservations.
-	for _, reservation := range f.InstantOut.reservations {
+	for _, reservation := range f.InstantOut.Reservations {
 		err := f.cfg.ReservationManager.UnlockReservation(
 			ctx, reservation.ID,
 		)

instantout/instantout.go

@@ -35,16 +35,16 @@ type InstantOut struct {
 	// State is the current state of the swap.
 	State fsm.StateType
 
-	// cltvExpiry is the expiry of the swap.
-	cltvExpiry int32
+	// CltvExpiry is the expiry of the swap.
+	CltvExpiry int32
 
 	// outgoingChanSet optionally specifies the short channel ids of the
 	// channels that may be used to loop out.
 	outgoingChanSet loopdb.ChannelSet
 
-	// reservations are the reservations that are used in as inputs for the
+	// Reservations are the Reservations that are used in as inputs for the
 	// instant out swap.
-	reservations []*reservation.Reservation
+	Reservations []*reservation.Reservation
 
 	// protocolVersion is the version of the protocol that is used for the
 	// swap.
@@ -53,8 +53,8 @@ type InstantOut struct {
 	// initiationHeight is the height at which the swap was initiated.
 	initiationHeight int32
 
-	// value is the amount that is swapped.
-	value btcutil.Amount
+	// Value is the amount that is swapped.
+	Value btcutil.Amount
 
 	// keyLocator is the key locator that is used for the swap.
 	keyLocator keychain.KeyLocator
@@ -81,9 +81,9 @@ type InstantOut struct {
 	// SweepTxHash is the hash of the sweep transaction.
 	SweepTxHash *chainhash.Hash
 
-	// finalizedSweeplessSweepTx is the transaction that is used to sweep
+	// FinalizedSweeplessSweepTx is the transaction that is used to sweep
 	// the funds in the cooperative path.
-	finalizedSweeplessSweepTx *wire.MsgTx
+	FinalizedSweeplessSweepTx *wire.MsgTx
 
 	// sweepConfirmationHeight is the height at which the sweep
 	// transaction was confirmed.
@@ -93,7 +93,7 @@ type InstantOut struct {
 // getHtlc returns the swap.htlc for the instant out.
 func (i *InstantOut) getHtlc(chainParams *chaincfg.Params) (*swap.Htlc, error) {
 	return swap.NewHtlcV2(
-		i.cltvExpiry, pubkeyTo33ByteSlice(i.serverPubkey),
+		i.CltvExpiry, pubkeyTo33ByteSlice(i.serverPubkey),
 		pubkeyTo33ByteSlice(i.clientPubkey), i.SwapHash, chainParams,
 	)
 }
@@ -104,11 +104,11 @@ func (i *InstantOut) createMusig2Session(ctx context.Context,
 	[][]byte, error) {
 
 	// Create the htlc musig2 context.
-	musig2Sessions := make([]*input.MuSig2SessionInfo, len(i.reservations))
-	clientNonces := make([][]byte, len(i.reservations))
+	musig2Sessions := make([]*input.MuSig2SessionInfo, len(i.Reservations))
+	clientNonces := make([][]byte, len(i.Reservations))
 
 	// Create the sessions and nonces from the reservations.
-	for idx, reservation := range i.reservations {
+	for idx, reservation := range i.Reservations {
 		session, err := reservation.Musig2CreateSession(ctx, signer)
 		if err != nil {
 			return nil, nil, err
@@ -123,12 +123,12 @@ func (i *InstantOut) createMusig2Session(ctx context.Context,
 
 // getInputReservation returns the input reservation for the instant out.
 func (i *InstantOut) getInputReservations() (InputReservations, error) {
-	if len(i.reservations) == 0 {
+	if len(i.Reservations) == 0 {
 		return nil, errors.New("no reservations")
 	}
 
-	inputs := make(InputReservations, len(i.reservations))
-	for idx, reservation := range i.reservations {
+	inputs := make(InputReservations, len(i.Reservations))
+	for idx, reservation := range i.Reservations {
 		pkScript, err := reservation.GetPkScript()
 		if err != nil {
 			return nil, err
@@ -170,7 +170,7 @@ func (i *InstantOut) createHtlcTransaction(network *chaincfg.Params) (
 	// Estimate the fee
 	weight := htlcWeight(len(inputReservations))
 	fee := i.htlcFeeRate.FeeForWeight(weight)
-	if fee > i.value/5 {
+	if fee > i.Value/5 {
 		return nil, errors.New("fee is higher than 20% of " +
 			"sweep value")
 	}
@@ -182,7 +182,7 @@ func (i *InstantOut) createHtlcTransaction(network *chaincfg.Params) (
 
 	// Create the sweep output
 	sweepOutput := &wire.TxOut{
-		Value:    int64(i.value) - int64(fee),
+		Value:    int64(i.Value) - int64(fee),
 		PkScript: htlc.PkScript,
 	}
 
@@ -214,7 +214,7 @@ func (i *InstantOut) createSweeplessSweepTx(feerate chainfee.SatPerKWeight) (
 	// Estimate the fee
 	weight := sweeplessSweepWeight(len(inputReservations))
 	fee := feerate.FeeForWeight(weight)
-	if fee > i.value/5 {
+	if fee > i.Value/5 {
 		return nil, errors.New("fee is higher than 20% of " +
 			"sweep value")
 	}
@@ -226,7 +226,7 @@ func (i *InstantOut) createSweeplessSweepTx(feerate chainfee.SatPerKWeight) (
 
 	// Create the sweep output
 	sweepOutput := &wire.TxOut{
-		Value:    int64(i.value) - int64(fee),
+		Value:    int64(i.Value) - int64(fee),
 		PkScript: pkscript,
 	}
 

instantout/manager.go

@@ -258,3 +258,8 @@ func (m *Manager) GetInstantOutQuote(ctx context.Context,
 		OnChainFee: chainFee,
 	}, nil
 }
+
+// ListInstantOuts returns all instant outs from the database.
+func (m *Manager) ListInstantOuts(ctx context.Context) ([]*InstantOut, error) {
+	return m.cfg.Store.ListInstantLoopOuts(ctx)
+}

instantout/store.go

@@ -94,8 +94,8 @@ func (s *SQLStore) CreateInstantLoopOut(ctx context.Context,
 		SwapHash:         instantOut.SwapHash[:],
 		Preimage:         instantOut.swapPreimage[:],
 		InitiationTime:   s.clock.Now(),
-		AmountRequested:  int64(instantOut.value),
-		CltvExpiry:       instantOut.cltvExpiry,
+		AmountRequested:  int64(instantOut.Value),
+		CltvExpiry:       instantOut.CltvExpiry,
 		MaxMinerFee:      0,
 		MaxSwapFee:       0,
 		InitiationHeight: instantOut.initiationHeight,
@@ -114,7 +114,7 @@ func (s *SQLStore) CreateInstantLoopOut(ctx context.Context,
 	}
 
 	reservationIdByteSlice := reservationIdsToByteSlice(
-		instantOut.reservations,
+		instantOut.Reservations,
 	)
 	instantOutArgs := sqlc.InsertInstantOutParams{
 		SwapHash:        instantOut.SwapHash[:],
@@ -172,9 +172,9 @@ func (s *SQLStore) UpdateInstantLoopOut(ctx context.Context,
 	}
 
 	var finalSweeplessSweepTx []byte
-	if instantOut.finalizedSweeplessSweepTx != nil {
+	if instantOut.FinalizedSweeplessSweepTx != nil {
 		var buffer bytes.Buffer
-		err := instantOut.finalizedSweeplessSweepTx.Serialize(
+		err := instantOut.FinalizedSweeplessSweepTx.Serialize(
 			&buffer,
 		)
 		if err != nil {
@@ -355,12 +355,12 @@ func (s *SQLStore) sqlInstantOutToInstantOut(ctx context.Context,
 	instantOut := &InstantOut{
 		SwapHash:         swapHash,
 		swapPreimage:     swapPreImage,
-		cltvExpiry:       row.CltvExpiry,
+		CltvExpiry:       row.CltvExpiry,
 		outgoingChanSet:  outgoingChanSet,
-		reservations:     reservations,
+		Reservations:     reservations,
 		protocolVersion:  ProtocolVersion(row.ProtocolVersion),
 		initiationHeight: row.InitiationHeight,
-		value:            btcutil.Amount(row.AmountRequested),
+		Value:            btcutil.Amount(row.AmountRequested),
 		keyLocator: keychain.KeyLocator{
 			Family: keychain.KeyFamily(row.ClientKeyFamily),
 			Index:  uint32(row.ClientKeyIndex),
@@ -372,7 +372,7 @@ func (s *SQLStore) sqlInstantOutToInstantOut(ctx context.Context,
 		sweepAddress:              sweepAddress,
 		finalizedHtlcTx:           finalizedHtlcTx,
 		SweepTxHash:               sweepTxHash,
-		finalizedSweeplessSweepTx: finalizedSweepLessSweepTx,
+		FinalizedSweeplessSweepTx: finalizedSweepLessSweepTx,
 		sweepConfirmationHeight: uint32(deserializeNullInt32(
 			row.SweepConfirmationHeight,
 		)),

loopd/perms/perms.go

@@ -108,4 +108,8 @@ var RequiredPermissions = map[string][]bakery.Op{
 		Entity: "swap",
 		Action: "read",
 	}},
+	"/looprpc.SwapClient/ListInstantOuts": {{
+		Entity: "swap",
+		Action: "read",
+	}},
 }

loopd/swapclient_server.go

@@ -1231,6 +1231,47 @@ func (s *swapClientServer) InstantOutQuote(ctx context.Context,
 	}, nil
 }
 
+// ListInstantOuts returns a list of all currently known instant out swaps and
+// their current status.
+func (s *swapClientServer) ListInstantOuts(ctx context.Context,
+	_ *clientrpc.ListInstantOutsRequest) (
+	*clientrpc.ListInstantOutsResponse, error) {
+
+	instantOuts, err := s.instantOutManager.ListInstantOuts(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	rpcSwaps := make([]*clientrpc.InstantOut, 0, len(instantOuts))
+	for _, instantOut := range instantOuts {
+		rpcSwaps = append(rpcSwaps, rpcInstantOut(instantOut))
+	}
+
+	return &clientrpc.ListInstantOutsResponse{
+		Swaps: rpcSwaps,
+	}, nil
+}
+
+func rpcInstantOut(instantOut *instantout.InstantOut) *clientrpc.InstantOut {
+	var sweepTxId string
+	if instantOut.SweepTxHash != nil {
+		sweepTxId = instantOut.SweepTxHash.String()
+	}
+
+	reservations := make([][]byte, len(instantOut.Reservations))
+	for i, res := range instantOut.Reservations {
+		reservations[i] = res.ID[:]
+	}
+
+	return &clientrpc.InstantOut{
+		SwapHash:       instantOut.SwapHash[:],
+		State:          string(instantOut.State),
+		Amount:         uint64(instantOut.Value),
+		SweepTxId:      sweepTxId,
+		ReservationIds: reservations,
+	}
+}
+
 func rpcAutoloopReason(reason liquidity.Reason) (clientrpc.AutoReason, error) {
 	switch reason {
 	case liquidity.ReasonNone: