From 2ad56af57ba992246d0cee40b5c68ae9ffd03186 Mon Sep 17 00:00:00 2001
From: Johannes Zellner <johannes@cloudron.io>
Date: Mon, 28 Nov 2022 18:37:44 +0100
Subject: [PATCH] Provide a copy of escapedToHex() from ldapjs

Since this is not exported by the upstream module, a copy was made.
---
 packages/wekan-ldap/server/ldap.js | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/packages/wekan-ldap/server/ldap.js b/packages/wekan-ldap/server/ldap.js
index 8c6880b24..cc266e9af 100644
--- a/packages/wekan-ldap/server/ldap.js
+++ b/packages/wekan-ldap/server/ldap.js
@@ -1,9 +1,20 @@
 import ldapjs from 'ldapjs';
-import escapedToHex from 'ldapjs';
 import util from 'util';
 import Bunyan from 'bunyan';
 import {log_debug, log_info, log_warn, log_error} from './logger';
 
+// copied from https://github.com/ldapjs/node-ldapjs/blob/a113953e0d91211eb945d2a3952c84b7af6de41c/lib/filters/index.js#L167
+function escapedToHex (str) {
+  return str.replace(/\\([0-9a-f][^0-9a-f]|[0-9a-f]$|[^0-9a-f]|$)/gi, function (match, p1) {
+    if (!p1) {
+      return '\\5c';
+    }
+
+    const hexCode = p1.charCodeAt(0).toString(16);
+    const rest = p1.substring(1);
+    return '\\' + hexCode + rest;
+  });
+}
 
 export default class LDAP {
   constructor() {