perms: move perms.go into taprpc

The Lightning Node Connect WASM client requires access to `perms.go` for
RPC endpoint-related permissions. We move it into taprpc so that the
WASM build only needs to depend on the taprpc module, without importing
the entire taproot-assets module.

Author: ffranr

server.go

@@ -17,7 +17,6 @@ import (
 	"github.com/lightninglabs/taproot-assets/address"
 	"github.com/lightninglabs/taproot-assets/fn"
 	"github.com/lightninglabs/taproot-assets/monitoring"
-	"github.com/lightninglabs/taproot-assets/perms"
 	"github.com/lightninglabs/taproot-assets/rfqmsg"
 	"github.com/lightninglabs/taproot-assets/rpcperms"
 	"github.com/lightninglabs/taproot-assets/tapchannel"
@@ -133,7 +132,7 @@ func (s *Server) initialize(interceptorChain *rpcperms.InterceptorChain) error {
 				Checkers: []macaroons.Checker{
 					macaroons.IPLockChecker,
 				},
-				RequiredPerms: perms.RequiredPermissions,
+				RequiredPerms: taprpc.RequiredPermissions,
 			},
 		)
 		if err != nil {
@@ -158,7 +157,7 @@ func (s *Server) initialize(interceptorChain *rpcperms.InterceptorChain) error {
 
 			// Register all our known permission with the macaroon
 			// service.
-			for method, ops := range perms.RequiredPermissions {
+			for method, ops := range taprpc.RequiredPermissions {
 				err := interceptorChain.AddPermission(
 					method, ops,
 				)
@@ -311,7 +310,7 @@ func (s *Server) RunUntilShutdown(mainErrChan <-chan error) error {
 	serverOpts := s.cfg.GrpcServerOpts
 
 	// Get RPC endpoints which don't require macaroons.
-	macaroonWhitelist := perms.MacaroonWhitelist(
+	macaroonWhitelist := taprpc.MacaroonWhitelist(
 		s.cfg.UniversePublicAccess.IsReadAccessGranted(),
 		s.cfg.UniversePublicAccess.IsWriteAccessGranted(),
 		s.cfg.RPCConfig.AllowPublicUniProofCourier,

taprpc/go.mod

@@ -9,6 +9,7 @@ require (
 	github.com/lightningnetwork/lnd v0.18.0-beta.rc4.0.20240723043204-f09d4042aee4
 	google.golang.org/grpc v1.59.0
 	google.golang.org/protobuf v1.33.0
+	gopkg.in/macaroon-bakery.v2 v2.0.1
 )
 
 require (
@@ -162,7 +163,6 @@ require (
 	google.golang.org/genproto/googleapis/api v0.0.0-20231016165738-49dd2c1f3d0b // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20231030173426-d783a09b4405 // indirect
 	gopkg.in/errgo.v1 v1.0.1 // indirect
-	gopkg.in/macaroon-bakery.v2 v2.0.1 // indirect
 	gopkg.in/macaroon.v2 v2.0.0 // indirect
 	gopkg.in/natefinch/lumberjack.v2 v2.0.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect

perms/perms.go renamed to taprpc/perms.go

@@ -1,4 +1,4 @@
-package perms
+package taprpc
 
 import "gopkg.in/macaroon-bakery.v2/bakery"