Refactor new session authorisation

internal/server/activeuser.go

@@ -1,6 +1,7 @@
 package server
 
 import (
+	"github.com/cbeuw/Cloak/internal/server/usermanager"
 	"sync"
 
 	mux "github.com/cbeuw/Cloak/internal/multiplex"
@@ -40,7 +41,8 @@ func (u *ActiveUser) GetSession(sessionID uint32, config *mux.SessionConfig) (se
 		return sesh, true, nil
 	} else {
 		if !u.bypass {
-			err := u.panel.Manager.AuthoriseNewSession(u.arrUID[:], len(u.sessions))
+			ainfo := usermanager.AuthorisationInfo{NumExistingSessions: len(u.sessions)}
+			err := u.panel.Manager.AuthoriseNewSession(u.arrUID[:], ainfo)
 			if err != nil {
 				return nil, false, err
 			}

internal/server/usermanager/localmanager.go

@@ -93,7 +93,7 @@ func (manager *localManager) AuthenticateUser(UID []byte) (int64, int64, error)
 	return upRate, downRate, nil
 }
 
-func (manager *localManager) AuthoriseNewSession(UID []byte, numExistingSessions int) error {
+func (manager *localManager) AuthoriseNewSession(UID []byte, ainfo AuthorisationInfo) error {
 	var arrUID [16]byte
 	copy(arrUID[:], UID)
 	var sessionsCap int
@@ -121,12 +121,10 @@ func (manager *localManager) AuthoriseNewSession(UID []byte, numExistingSessions
 	if expiryTime < time.Now().Unix() {
 		return ErrUserExpired
 	}
-	//user.sessionsM.RLock()
+
-	if numExistingSessions >= sessionsCap {
+	if ainfo.NumExistingSessions >= sessionsCap {
-		//user.sessionsM.RUnlock()
 		return ErrSessionsCapReached
 	}
-	//user.sessionsM.RUnlock()
 	return nil
 }
 

internal/server/usermanager/usermanager.go

@@ -20,6 +20,10 @@ type StatusResponse struct {
 	Message string
 }
 
+type AuthorisationInfo struct {
+	NumExistingSessions int
+}
+
 const (
 	TERMINATE = iota + 1
 )
@@ -33,6 +37,6 @@ var ErrUserExpired = errors.New("User has expired")
 
 type UserManager interface {
 	AuthenticateUser([]byte) (int64, int64, error)
-	AuthoriseNewSession([]byte, int) error
+	AuthoriseNewSession([]byte, AuthorisationInfo) error
 	UploadStatus([]StatusUpdate) ([]StatusResponse, error)
 }