From 5450e48f6931d7960da88a96ddaab9f19dd4c788 Mon Sep 17 00:00:00 2001
From: Ruben Bridgewater <ruben@bridgewater.de>
Date: Mon, 15 Apr 2019 01:50:58 +0200
Subject: [PATCH] worker: simplify filename checks

Replace a couple of checks with a single regular expression.

PR-URL: https://github.com/nodejs/node/pull/27233
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
---
 lib/internal/worker.js | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/lib/internal/worker.js b/lib/internal/worker.js
index 53e3c7668c31a0..796d1713dd510a 100644
--- a/lib/internal/worker.js
+++ b/lib/internal/worker.js
@@ -68,11 +68,7 @@ class Worker extends EventEmitter {
                                      options.execArgv);
     }
     if (!options.eval) {
-      if (!path.isAbsolute(filename) &&
-          !filename.startsWith('./') &&
-          !filename.startsWith('../') &&
-          !filename.startsWith('.' + path.sep) &&
-          !filename.startsWith('..' + path.sep)) {
+      if (!path.isAbsolute(filename) && !/^\.\.?[\\/]/.test(filename)) {
         throw new ERR_WORKER_PATH(filename);
       }
       filename = path.resolve(filename);