Do not allow empty database names KIKIMR-14852

ref:4f914e01c142bf20f4fe44f352c4f154bf9d6647

1 files changed, 7 insertions, 0 deletions

diff --git a/ydb/core/grpc_services/grpc_request_proxy.cpp b/ydb/core/grpc_services/grpc_request_proxy.cpp
index 08e11d4337d..ecf019fae6b 100644
--- a/ydb/core/grpc_services/grpc_request_proxy.cpp
+++ b/ydb/core/grpc_services/grpc_request_proxy.cpp
@@ -210,6 +210,11 @@ private:
                     skipCheckConnectRigths = true;
                 }
             }
+            if (databaseName.empty()) {
+                Counters->IncDatabaseUnavailableCounter();
+                requestBaseCtx->ReplyUnauthenticated("Empty database name");
+                return;
+            }
             auto it = Databases.find(databaseName);
             if (it != Databases.end() && it->second.IsDatabaseReady()) {
                 database = &it->second;
@@ -320,6 +325,8 @@ void TGRpcRequestProxyImpl::Bootstrap(const TActorContext& ctx) {
     InitializeGRpcProxyDbCountersRegistry(ctx.ActorSystem());
 
     RootDatabase = DatabaseFromDomain();
+    Y_VERIFY(!RootDatabase.empty());
+
     TDatabaseInfo& database = Databases[RootDatabase];
     database.DatabaseType = TDatabaseInfo::TDatabaseType::Root;
     database.State = NKikimrTenantPool::EState::TENANT_OK;