Add debug log to HandleDial, remove OpRegister

Log original and normalized target number to debug 'target offline'. Remove unused OpRegister opcode and handler.

internal/call/signaling.go

@@ -130,9 +130,15 @@ func (m *Manager) HandleDial(sess CallSession, payload []byte) {
 		sendError(sess, types.ErrInvalidRequest, "empty target number")
 		return
 	}
+	origTarget := targetNumber
 	targetNumber = identity.NormalizeNumber(targetNumber)
 
 	fromNumber := sess.Number()
+	m.logger.Debug("Dial request",
+		zap.String("from", fromNumber),
+		zap.String("target_orig", origTarget),
+		zap.String("target_norm", targetNumber))
+
 	if fromNumber == targetNumber {
 		sendError(sess, types.ErrSelfCall, "cannot call yourself")
 		return

internal/server/server.go

@@ -217,8 +217,6 @@ func (s *Server) handleStream(ctx context.Context, stream *quic.Stream, sess *Se
 			s.handleReroll(sess)
 		case types.OpAuthCert:
 			s.handleAuthCert(sess, frame.Payload)
-		case types.OpRegister:
-			s.handleRegister(sess, frame.Payload)
 		case types.OpDial:
 			if !sess.IsAuthenticated() {
 				sendOpError(st, types.ErrInvalidRequest, "not authenticated")
@@ -369,45 +367,6 @@ func (s *Server) handleAuthCert(sess *Session, payload []byte) {
 		zap.String("number", ident.Number))
 }
 
-func (s *Server) handleRegister(sess *Session, payload []byte) {
-	if len(payload) < 32 {
-		sendOpError(sess.Stream(), types.ErrInvalidRequest, "invalid pubkey")
-		return
-	}
-
-	var pubKey [32]byte
-	copy(pubKey[:], payload[:32])
-
-	if _, err := s.identMgr.GetByPubKey(pubKey); err == nil {
-		sendOpError(sess.Stream(), types.ErrInvalidRequest, "already registered")
-		return
-	}
-
-	ident, err := s.identMgr.Allocate(pubKey)
-	if err != nil {
-		sendOpError(sess.Stream(), types.ErrInternal, err.Error())
-		return
-	}
-
-	certDER, err := s.ca.IssueCert(ident.Number, ed25519.PublicKey(pubKey[:]), s.cfg.CA.Validity)
-	if err != nil {
-		sendOpError(sess.Stream(), types.ErrInternal, "cert issuance failed")
-		return
-	}
-	ident.CertDER = certDER
-
-	sess.Authenticate(ident.Number, pubKey, certDER)
-	s.Register(sess, ident.Number)
-
-	payload = marshalIdentityResponse(ident.Number, certDER, s.ca.CACertPEM())
-	if st := sess.Stream(); st != nil {
-		st.WriteFrame(byte(types.OpIdentity), payload)
-	}
-
-	s.logger.Info("Client registered",
-		zap.String("number", ident.Number))
-}
-
 func (s *Server) handleReroll(sess *Session) {
 	if !sess.IsAuthenticated() {
 		sendOpError(sess.Stream(), types.ErrInvalidRequest, "not authenticated")

pkg/types/opcode.go

@@ -9,7 +9,6 @@ const (
 	OpIdentity     OpCode = 0x04
 	OpReroll       OpCode = 0x05
 	OpAuthCert     OpCode = 0x06
-	OpRegister     OpCode = 0x07
 
 	OpDial       OpCode = 0x10
 	OpRing       OpCode = 0x11