fix bug: obtain user online status err(#567)

internal/msggateway/hub_server.go

@@ -16,11 +16,10 @@ package msggateway
 
 import (
 	"context"
+	"github.com/OpenIMSDK/Open-IM-Server/pkg/common/db/cache"
 	"github.com/OpenIMSDK/Open-IM-Server/pkg/common/tokenverify"
 	"github.com/OpenIMSDK/Open-IM-Server/pkg/errs"
 
-	"github.com/OpenIMSDK/Open-IM-Server/pkg/common/db/cache"
-
 	"google.golang.org/grpc"
 
 	"github.com/OpenIMSDK/Open-IM-Server/pkg/common/config"
@@ -84,6 +83,9 @@ func (s *Server) GetUsersOnlineStatus(
 	ctx context.Context,
 	req *msggateway.GetUsersOnlineStatusReq,
 ) (*msggateway.GetUsersOnlineStatusResp, error) {
+	if !tokenverify.IsAppManagerUid(ctx) {
+		return nil, errs.ErrNoPermission.Wrap("only app manager")
+	}
 	var resp msggateway.GetUsersOnlineStatusResp
 	for _, userID := range req.UserIDs {
 		clients, ok := s.LongConnServer.GetUserAllCons(userID)