staticaddr: deposits for server and daemon

Author: hieblmi

loopd/daemon.go

@@ -21,7 +21,8 @@ import (
 	"github.com/lightninglabs/loop/loopd/perms"
 	"github.com/lightninglabs/loop/loopdb"
 	loop_looprpc "github.com/lightninglabs/loop/looprpc"
-	"github.com/lightninglabs/loop/staticaddr"
+	"github.com/lightninglabs/loop/staticaddr/address"
+	"github.com/lightninglabs/loop/staticaddr/deposit"
 	loop_swaprpc "github.com/lightninglabs/loop/swapserverrpc"
 	"github.com/lightninglabs/loop/sweepbatcher"
 	"github.com/lightningnetwork/lnd/clock"
@@ -68,12 +69,6 @@ type Daemon struct {
 	// same process.
 	swapClientServer
 
-	// AddressServer is the embedded RPC server that satisfies the
-	// static address client RPC interface. We embed this struct so the
-	// Daemon itself can be registered to an existing grpc.Server to run as
-	// a subserver in the same process.
-	*staticaddr.AddressServer
-
 	// ErrChan is an error channel that users of the Daemon struct must use
 	// to detect runtime errors and also whether a shutdown is fully
 	// completed.
@@ -239,7 +234,6 @@ func (d *Daemon) startWebServers() error {
 		grpc.StreamInterceptor(streamInterceptor),
 	)
 	loop_looprpc.RegisterSwapClientServer(d.grpcServer, d)
-	loop_looprpc.RegisterStaticAddressClientServer(d.grpcServer, d)
 
 	// Register our debug server if it is compiled in.
 	d.registerDebugServer()
@@ -438,6 +432,11 @@ func (d *Daemon) initialize(withMacaroonService bool) error {
 		swapClient.Conn,
 	)
 
+	// Create a static address server client.
+	staticAddressClient := loop_swaprpc.NewStaticAddressServerClient(
+		swapClient.Conn,
+	)
+
 	// Both the client RPC server and the swap server client should stop
 	// on main context cancel. So we create it early and pass it down.
 	d.mainCtx, d.mainCtxCancel = context.WithCancel(context.Background())
@@ -498,6 +497,9 @@ func (d *Daemon) initialize(withMacaroonService bool) error {
 	var (
 		reservationManager *reservation.Manager
 		instantOutManager  *instantout.Manager
+
+		staticAddressManager *address.Manager
+		depositManager       *deposit.Manager
 	)
 	// Create the reservation and instantout managers.
 	if d.cfg.EnableExperimental {
@@ -534,43 +536,50 @@ func (d *Daemon) initialize(withMacaroonService bool) error {
 		instantOutManager = instantout.NewInstantOutManager(
 			instantOutConfig,
 		)
+
+		// Static address manager setup.
+		staticAddressStore := address.NewSqlStore(baseDb)
+		addrCfg := &address.ManagerConfig{
+			AddressClient: staticAddressClient,
+			FetchL402:     swapClient.Server.FetchL402,
+			Store:         staticAddressStore,
+			WalletKit:     d.lnd.WalletKit,
+			ChainParams:   d.lnd.ChainParams,
+		}
+		staticAddressManager = address.NewManager(addrCfg)
+
+		// Static address deposit manager setup.
+		depositStore := deposit.NewSqlStore(baseDb)
+		depoCfg := &deposit.ManagerConfig{
+			AddressClient:  staticAddressClient,
+			AddressManager: staticAddressManager,
+			SwapClient:     swapClient,
+			Store:          depositStore,
+			WalletKit:      d.lnd.WalletKit,
+			ChainParams:    d.lnd.ChainParams,
+			ChainNotifier:  d.lnd.ChainNotifier,
+			Signer:         d.lnd.Signer,
+		}
+		depositManager = deposit.NewManager(depoCfg)
 	}
 
 	// Now finally fully initialize the swap client RPC server instance.
 	d.swapClientServer = swapClientServer{
-		config:             d.cfg,
-		network:            lndclient.Network(d.cfg.Network),
-		impl:               swapClient,
-		liquidityMgr:       getLiquidityManager(swapClient),
-		lnd:                &d.lnd.LndServices,
-		swaps:              make(map[lntypes.Hash]loop.SwapInfo),
-		subscribers:        make(map[int]chan<- interface{}),
-		statusChan:         make(chan loop.SwapInfo),
-		mainCtx:            d.mainCtx,
-		reservationManager: reservationManager,
-		instantOutManager:  instantOutManager,
+		config:               d.cfg,
+		network:              lndclient.Network(d.cfg.Network),
+		impl:                 swapClient,
+		liquidityMgr:         getLiquidityManager(swapClient),
+		lnd:                  &d.lnd.LndServices,
+		swaps:                make(map[lntypes.Hash]loop.SwapInfo),
+		subscribers:          make(map[int]chan<- interface{}),
+		statusChan:           make(chan loop.SwapInfo),
+		mainCtx:              d.mainCtx,
+		reservationManager:   reservationManager,
+		instantOutManager:    instantOutManager,
+		staticAddressManager: staticAddressManager,
+		depositManager:       depositManager,
 	}
 
-	// Create a static address server client.
-	staticAddressClient := loop_swaprpc.NewStaticAddressServerClient(
-		swapClient.Conn,
-	)
-
-	store := staticaddr.NewSqlStore(baseDb)
-
-	cfg := &staticaddr.ManagerConfig{
-		AddressClient: staticAddressClient,
-		SwapClient:    swapClient,
-		Store:         store,
-		WalletKit:     d.lnd.WalletKit,
-		ChainParams:   d.lnd.ChainParams,
-	}
-	staticAddressManager := staticaddr.NewAddressManager(cfg)
-
-	d.AddressServer = staticaddr.NewAddressServer(
-		staticAddressClient, staticAddressManager,
-	)
-
 	// Retrieve all currently existing swaps from the database.
 	swapsList, err := d.impl.FetchSwaps(d.mainCtx)
 	if err != nil {
@@ -662,20 +671,43 @@ func (d *Daemon) initialize(withMacaroonService bool) error {
 	}
 
 	// Start the static address manager.
-	d.wg.Add(1)
-	go func() {
-		defer d.wg.Done()
+	if staticAddressManager != nil {
+		d.wg.Add(1)
+		go func() {
+			defer d.wg.Done()
 
-		log.Info("Starting static address manager...")
-		err = staticAddressManager.Run(d.mainCtx)
-		if err != nil && !errors.Is(context.Canceled, err) {
-			d.internalErrChan <- err
-		}
+			log.Info("Starting static address manager...")
+			err = staticAddressManager.Run(d.mainCtx)
+			if err != nil && !errors.Is(context.Canceled, err) {
+				d.internalErrChan <- err
+			}
+			log.Info("Static address manager stopped")
+		}()
+	}
 
-		log.Info("Static address manager stopped")
-	}()
+	// Start the static address deposit manager.
+	if depositManager != nil {
+		d.wg.Add(1)
+		go func() {
+			defer d.wg.Done()
 
-	staticAddressManager.WaitInitComplete()
+			// 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 deposit manager...")
+			err = depositManager.Run(d.mainCtx, info.BlockHeight)
+			if err != nil && !errors.Is(context.Canceled, err) {
+				d.internalErrChan <- err
+			}
+			log.Info("Static address deposit manager stopped")
+		}()
+		depositManager.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

loopd/perms/perms.go

@@ -69,14 +69,14 @@ var RequiredPermissions = map[string][]bakery.Op{
 		Entity: "loop",
 		Action: "in",
 	}},
-	"/looprpc.StaticAddressClient/NewAddress": {{
+	"/looprpc.SwapClient/NewStaticAddress": {{
 		Entity: "swap",
 		Action: "read",
 	}, {
 		Entity: "loop",
 		Action: "in",
 	}},
-	"/looprpc.StaticAddressClient/ListUnspent": {{
+	"/looprpc.SwapClient/ListUnspentDeposits": {{
 		Entity: "swap",
 		Action: "read",
 	}, {

loopd/swapclient_server.go

@@ -24,6 +24,8 @@ import (
 	"github.com/lightninglabs/loop/liquidity"
 	"github.com/lightninglabs/loop/loopdb"
 	clientrpc "github.com/lightninglabs/loop/looprpc"
+	"github.com/lightninglabs/loop/staticaddr/address"
+	"github.com/lightninglabs/loop/staticaddr/deposit"
 	"github.com/lightninglabs/loop/swap"
 	looprpc "github.com/lightninglabs/loop/swapserverrpc"
 	"github.com/lightningnetwork/lnd/lnrpc/walletrpc"
@@ -76,19 +78,21 @@ type swapClientServer struct {
 	clientrpc.UnimplementedSwapClientServer
 	clientrpc.UnimplementedDebugServer
 
-	config             *Config
-	network            lndclient.Network
-	impl               *loop.Client
-	liquidityMgr       *liquidity.Manager
-	lnd                *lndclient.LndServices
-	reservationManager *reservation.Manager
-	instantOutManager  *instantout.Manager
-	swaps              map[lntypes.Hash]loop.SwapInfo
-	subscribers        map[int]chan<- interface{}
-	statusChan         chan loop.SwapInfo
-	nextSubscriberID   int
-	swapsLock          sync.Mutex
-	mainCtx            context.Context
+	config               *Config
+	network              lndclient.Network
+	impl                 *loop.Client
+	liquidityMgr         *liquidity.Manager
+	lnd                  *lndclient.LndServices
+	reservationManager   *reservation.Manager
+	instantOutManager    *instantout.Manager
+	staticAddressManager *address.Manager
+	depositManager       *deposit.Manager
+	swaps                map[lntypes.Hash]loop.SwapInfo
+	subscribers          map[int]chan<- interface{}
+	statusChan           chan loop.SwapInfo
+	nextSubscriberID     int
+	swapsLock            sync.Mutex
+	mainCtx              context.Context
 }
 
 // LoopOut initiates a loop out swap with the given parameters. The call returns
@@ -1272,6 +1276,51 @@ func rpcInstantOut(instantOut *instantout.InstantOut) *clientrpc.InstantOut {
 	}
 }
 
+// NewStaticAddress is the rpc endpoint for loop clients to request a new static
+// address.
+func (s *swapClientServer) NewStaticAddress(ctx context.Context,
+	_ *clientrpc.NewStaticAddressRequest) (
+	*clientrpc.NewStaticAddressResponse, error) {
+
+	staticAddress, err := s.staticAddressManager.NewAddress(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	return &clientrpc.NewStaticAddressResponse{
+		Address: staticAddress.String(),
+	}, nil
+}
+
+// ListUnspentDeposits returns a list of utxos behind the static address.
+func (s *swapClientServer) ListUnspentDeposits(ctx context.Context,
+	req *clientrpc.ListUnspentDepositsRequest) (
+	*clientrpc.ListUnspentDepositsResponse, error) {
+
+	// List all unspent utxos the wallet sees, regardless of the number of
+	// confirmations.
+	staticAddress, utxos, err := s.staticAddressManager.ListUnspentRaw(
+		ctx, req.MinConfs, req.MaxConfs,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	// Prepare the list response.
+	var respUtxos []*clientrpc.Utxo
+	for _, u := range utxos {
+		utxo := &clientrpc.Utxo{
+			StaticAddress: staticAddress.String(),
+			AmountSat:     int64(u.Value),
+			Confirmations: u.Confirmations,
+			Outpoint:      u.OutPoint.String(),
+		}
+		respUtxos = append(respUtxos, utxo)
+	}
+
+	return &clientrpc.ListUnspentDepositsResponse{Utxos: respUtxos}, nil
+}
+
 func rpcAutoloopReason(reason liquidity.Reason) (clientrpc.AutoReason, error) {
 	switch reason {
 	case liquidity.ReasonNone: