From 962a58301f9f5034b39e5c4316a1898c968b0815 Mon Sep 17 00:00:00 2001
From: DoobleD <pierre.alletru@gmail.com>
Date: Fri, 14 Jul 2023 17:32:09 +0200
Subject: [PATCH] fix error mb_convert_encoding(): Argument #3 ($from_encoding)
 contains invalid encoding "windows-1256"

---
 src/lib/utils/utils.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/lib/utils/utils.php b/src/lib/utils/utils.php
index e6826f75..d4b5d8e1 100644
--- a/src/lib/utils/utils.php
+++ b/src/lib/utils/utils.php
@@ -1278,7 +1278,11 @@ private static function convertRawHeader2Utf8($nonencstr, $utf8str) {
                 $str .= $val->text;
             }
             else {
-                $str .= @mb_convert_encoding($val->text, "utf-8", $val->charset);
+                try {
+                    $str .= @mb_convert_encoding($val->text, "utf-8", $val->charset);
+                } catch (ValueError $exception) {
+                    $str .= @iconv($val->charset, "utf-8", $val->text);
+                }
             }
         }
         if (!$isiso2022jp) {