all loopin changes

Author: hieblmi

cmd/loop/staticaddr.go

@@ -9,7 +9,10 @@ import (
 	"strings"
 
 	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/lightninglabs/loop/labels"
 	"github.com/lightninglabs/loop/looprpc"
+	"github.com/lightninglabs/loop/swapserverrpc"
+	"github.com/lightningnetwork/lnd/routing/route"
 	"github.com/urfave/cli"
 )
 
@@ -24,6 +27,46 @@ var staticAddressCommands = cli.Command{
 		withdrawalCommand,
 		summaryCommand,
 	},
+	Description: `
+	TODO .
+	`,
+	Flags: []cli.Flag{
+		cli.StringSliceFlag{
+			Name: "utxo",
+			Usage: "specify the utxos of deposits as " +
+				"outpoints(tx:idx) that should be looped in.",
+		},
+		cli.StringFlag{
+			Name: "last_hop",
+			Usage: "the pubkey of the last hop to use for this " +
+				"swap",
+		},
+		cli.StringFlag{
+			Name: "label",
+			Usage: fmt.Sprintf("an optional label for this swap,"+
+				"limited to %v characters. The label may not "+
+				"start with our reserved prefix: %v.",
+				labels.MaxLength, labels.Reserved),
+		},
+		cli.StringSliceFlag{
+			Name: "route_hints",
+			Usage: "route hints that can each be individually " +
+				"used to assist in reaching the invoice's " +
+				"destination",
+		},
+		cli.BoolFlag{
+			Name: "private",
+			Usage: "generates and passes routehints. Should be " +
+				"used if the connected node is only " +
+				"reachable via private channels",
+		},
+		cli.BoolFlag{
+			Name: "force, f",
+			Usage: "Assumes yes during confirmation. Using this " +
+				"option will result in an immediate swap",
+		},
+	},
+	Action: staticAddressLoopIn,
 }
 
 var newStaticAddressCommand = cli.Command{
@@ -196,7 +239,7 @@ var summaryCommand = cli.Command{
 			Usage: "specify a filter to only display deposits in " +
 				"the specified state. The state can be one " +
 				"of [deposited|withdrawing|withdrawn|" +
-				"publish_expired_deposit|" +
+				"loopingin|loopedin|publish_expired_deposit|" +
 				"wait_for_expiry_sweep|expired|failed].",
 		},
 	},
@@ -229,6 +272,12 @@ func summary(ctx *cli.Context) error {
 	case "withdrawn":
 		filterState = looprpc.DepositState_WITHDRAWN
 
+	case "loopingin":
+		filterState = looprpc.DepositState_LOOPING_IN
+
+	case "loopedin":
+		filterState = looprpc.DepositState_LOOPED_IN
+
 	case "publish_expired_deposit":
 		filterState = looprpc.DepositState_PUBLISH_EXPIRED
 
@@ -297,3 +346,131 @@ func NewProtoOutPoint(op string) (*looprpc.OutPoint, error) {
 		OutputIndex: uint32(outputIndex),
 	}, nil
 }
+
+func staticAddressLoopIn(ctx *cli.Context) error {
+	if ctx.NArg() > 0 {
+		return cli.ShowCommandHelp(ctx, "static")
+	}
+
+	client, cleanup, err := getClient(ctx)
+	if err != nil {
+		return err
+	}
+	defer cleanup()
+
+	var (
+		ctxb           = context.Background()
+		isAllSelected  = ctx.IsSet("all")
+		isUtxoSelected = ctx.IsSet("utxo")
+		label          = ctx.String("static-loop-in")
+		hints          []*swapserverrpc.RouteHint
+		lastHop        []byte
+	)
+
+	// Validate our label early so that we can fail before getting a quote.
+	if err := labels.Validate(label); err != nil {
+		return err
+	}
+
+	// Private and route hints are mutually exclusive as setting private
+	// means we retrieve our own route hints from the connected node.
+	hints, err = validateRouteHints(ctx)
+	if err != nil {
+		return err
+	}
+
+	if ctx.IsSet(lastHopFlag.Name) {
+		lastHopVertex, err := route.NewVertexFromStr(
+			ctx.String(lastHopFlag.Name),
+		)
+		if err != nil {
+			return err
+		}
+
+		lastHop = lastHopVertex[:]
+	}
+
+	// Get the amount we need to quote for.
+	summaryResp, err := client.GetStaticAddressSummary(
+		ctxb, &looprpc.StaticAddressSummaryRequest{
+			StateFilter: looprpc.DepositState_DEPOSITED,
+		},
+	)
+	if err != nil {
+		return err
+	}
+
+	var depositOutpoints []string
+	switch {
+	case isAllSelected == isUtxoSelected:
+		return errors.New("must select either all or some utxos")
+
+	case isAllSelected:
+		depositOutpoints = depositsToOutpoints(
+			summaryResp.FilteredDeposits,
+		)
+
+	case isUtxoSelected:
+		depositOutpoints = ctx.StringSlice("utxo")
+
+	default:
+		return fmt.Errorf("unknown quote request")
+	}
+
+	quote, err := client.GetLoopInQuote(
+		ctxb, &looprpc.QuoteRequest{
+			LoopInRouteHints: hints,
+			LoopInLastHop:    lastHop,
+			Private:          ctx.Bool(privateFlag.Name),
+			DepositOutpoints: depositOutpoints,
+		},
+	)
+	if err != nil {
+		return err
+	}
+
+	limits := getInLimits(quote)
+
+	req := &looprpc.StaticAddressLoopInRequest{
+		Outpoints:   depositOutpoints,
+		MaxMinerFee: int64(limits.maxMinerFee),
+		MaxSwapFee:  int64(limits.maxSwapFee),
+		LastHop:     lastHop,
+		Label:       label,
+		Initiator:   defaultInitiator,
+		RouteHints:  hints,
+		Private:     ctx.Bool("private"),
+	}
+
+	resp, err := client.StaticAddressLoopIn(ctxb, req)
+	if err != nil {
+		return err
+	}
+
+	fmt.Printf("Static loop-in response from the server: %v\n", resp)
+
+	return nil
+}
+
+func sumOutpointValues(outpoints []string, deposits []*looprpc.Deposit) int64 {
+	var total int64
+	for _, outpoint := range outpoints {
+		for _, deposit := range deposits {
+			if deposit.Outpoint == outpoint {
+				total += deposit.Value
+				break
+			}
+		}
+	}
+
+	return total
+}
+
+func depositsToOutpoints(deposits []*looprpc.Deposit) []string {
+	outpoints := make([]string, 0, len(deposits))
+	for _, deposit := range deposits {
+		outpoints = append(outpoints, deposit.Outpoint)
+	}
+
+	return outpoints
+}

interface.go

@@ -234,6 +234,52 @@ type LoopInRequest struct {
 	RouteHints [][]zpay32.HopHint
 }
 
+// StaticAddressLoopInRequest contains the required parameters for the swap.
+type StaticAddressLoopInRequest struct {
+	DepositOutpoints []string
+
+	// MaxSwapFee is the maximum we are willing to pay the server for the
+	// swap. This value is not disclosed in the swap initiation call, but if
+	// the server asks for a higher fee, we abort the swap. Typically this
+	// value is taken from the response of the LoopInQuote call. It
+	// includes the prepay amount.
+	MaxSwapFee btcutil.Amount
+
+	// MaxMinerFee is the maximum in on-chain fees that we are willing to
+	// spent. If we publish the on-chain htlc and the fee estimate turns out
+	// higher than this value, we cancel the swap.
+	//
+	// MaxMinerFee is typically taken from the response of the LoopInQuote
+	// call.
+	MaxMinerFee btcutil.Amount
+
+	// LastHop optionally specifies the last hop to use for the loop in
+	// payment.
+	LastHop *route.Vertex
+
+	// Label contains an optional label for the swap.
+	Label string
+
+	// Initiator is an optional string that identifies what software
+	// initiated the swap (loop CLI, autolooper, LiT UI and so on) and is
+	// appended to the user agent string.
+	Initiator string
+
+	// Private indicates whether the destination node should be considered
+	// private. In which case, loop will generate hophints to assist with
+	// probing and payment.
+	Private bool
+
+	// RouteHints are optional route hints to reach the destination through
+	// private channels.
+	RouteHints [][]zpay32.HopHint
+}
+
+// StaticAddressLoopInResponse contains the parameters for the static address
+// loop-in.
+type StaticAddressLoopInResponse struct {
+}
+
 // LoopInTerms are the server terms on which it executes loop in swaps.
 type LoopInTerms struct {
 	// MinSwapAmount is the minimum amount that the server requires for a

loopd/daemon.go

@@ -5,6 +5,7 @@ import (
 	"crypto/tls"
 	"errors"
 	"fmt"
+	"github.com/lightninglabs/loop/staticaddr/loopin"
 	"net"
 	"net/http"
 	"strings"
@@ -513,6 +514,7 @@ func (d *Daemon) initialize(withMacaroonService bool) error {
 		staticAddressManager *address.Manager
 		depositManager       *deposit.Manager
 		withdrawalManager    *withdraw.Manager
+		staticLoopInManager  *loopin.Manager
 	)
 	// Create the reservation and instantout managers.
 	if d.cfg.EnableExperimental {
@@ -589,6 +591,23 @@ func (d *Daemon) initialize(withMacaroonService bool) error {
 			Signer:                    d.lnd.Signer,
 		}
 		withdrawalManager = withdraw.NewManager(withdrawalCfg)
+
+		// Static address loop-in manager setup.
+		loopinCfg := &loopin.Config{
+			StaticAddressServerClient: staticAddressClient,
+			SwapClient:                swapClient,
+			LndClient:                 d.lnd.Client,
+			InvoicesClient:            d.lnd.Invoices,
+			NodePubkey:                d.lnd.NodePubkey,
+			AddressManager:            staticAddressManager,
+			DepositManager:            depositManager,
+			WithdrawalManager:         withdrawalManager,
+			WalletKit:                 d.lnd.WalletKit,
+			ChainNotifier:             d.lnd.ChainNotifier,
+			ChainParams:               d.lnd.ChainParams,
+			Signer:                    d.lnd.Signer,
+		}
+		staticLoopInManager = loopin.NewManager(loopinCfg)
 	}
 
 	// Now finally fully initialize the swap client RPC server instance.
@@ -607,6 +626,7 @@ func (d *Daemon) initialize(withMacaroonService bool) error {
 		staticAddressManager: staticAddressManager,
 		depositManager:       depositManager,
 		withdrawalManager:    withdrawalManager,
+		staticLoopInManager:  staticLoopInManager,
 	}
 
 	// Retrieve all currently existing swaps from the database.
@@ -764,6 +784,33 @@ func (d *Daemon) initialize(withMacaroonService bool) error {
 		withdrawalManager.WaitInitComplete()
 	}
 
+	// Start the static address loop-in manager.
+	if staticLoopInManager != nil {
+		d.wg.Add(1)
+		go func() {
+			defer d.wg.Done()
+
+			// Lnd's GetInfo call supplies us with the current block
+			// height.
+			info, err := d.lnd.Client.GetInfo(d.mainCtx)
+			if err != nil {
+				d.internalErrChan <- err
+				return
+			}
+
+			log.Info("Starting static address loop-in manager...")
+			err = staticLoopInManager.Run(
+				d.mainCtx, info.BlockHeight,
+			)
+			if err != nil && !errors.Is(context.Canceled, err) {
+				d.internalErrChan <- err
+			}
+			log.Info("Starting static address loop-in manager " +
+				"stopped")
+		}()
+		staticLoopInManager.WaitInitComplete()
+	}
+
 	// Last, start our internal error handler. This will return exactly one
 	// error or nil on the main error channel to inform the caller that
 	// something went wrong or that shutdown is complete. We don't add to

loopd/perms/perms.go

@@ -101,6 +101,13 @@ var RequiredPermissions = map[string][]bakery.Op{
 		Entity: "loop",
 		Action: "in",
 	}},
+	"/looprpc.SwapClient/StaticAddressLoopIn": {{
+		Entity: "swap",
+		Action: "read",
+	}, {
+		Entity: "loop",
+		Action: "in",
+	}},
 	"/looprpc.SwapClient/GetLsatTokens": {{
 		Entity: "auth",
 		Action: "read",