[#414] ir: Serve ControlService

Serve `ControlService` instance on configured endpoint (do not serve if not
specified). Read allowed keys from config.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

pkg/services/control/ir/server/calls.go

@@ -26,7 +26,7 @@ func (s *Server) HealthCheck(_ context.Context, req *control.HealthCheckRequest)
 	body.SetHealthStatus(s.prm.healthChecker.HealthStatus())
 
 	// sign the response
-	if err := SignMessage(s.prm.key, resp); err != nil {
+	if err := SignMessage(&s.prm.key.PrivateKey, resp); err != nil {
 		return nil, status.Error(codes.Internal, err.Error())
 	}
 

pkg/services/control/ir/server/prm.go

@@ -1,19 +1,19 @@
 package control
 
 import (
-	"crypto/ecdsa"
+	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 )
 
 // Prm groups required parameters of
 // Server's constructor.
 type Prm struct {
-	key *ecdsa.PrivateKey
+	key keys.PrivateKey
 
 	healthChecker HealthChecker
 }
 
 // SetPrivateKey sets private key to sign responses.
-func (x *Prm) SetPrivateKey(key *ecdsa.PrivateKey) {
+func (x *Prm) SetPrivateKey(key keys.PrivateKey) {
 	x.key = key
 }
 

pkg/services/control/ir/server/server.go

@@ -2,8 +2,6 @@ package control
 
 import (
 	"fmt"
-
-	crypto "github.com/nspcc-dev/neofs-crypto"
 )
 
 // Server is an entity that serves
@@ -34,8 +32,6 @@ func panicOnPrmValue(n string, v interface{}) {
 func New(prm Prm, opts ...Option) *Server {
 	// verify required parameters
 	switch {
-	case prm.key == nil:
-		panicOnPrmValue("key", prm.key)
 	case prm.healthChecker == nil:
 		panicOnPrmValue("health checker", prm.healthChecker)
 	}
@@ -50,6 +46,6 @@ func New(prm Prm, opts ...Option) *Server {
 	return &Server{
 		prm: prm,
 
-		allowedKeys: append(o.allowedKeys, crypto.MarshalPublicKey(&prm.key.PublicKey)),
+		allowedKeys: append(o.allowedKeys, prm.key.PublicKey().Bytes()),
 	}
 }