From 7d86a402616609273b2c9900c6b7eb809100ccb5 Mon Sep 17 00:00:00 2001
From: Gazook89 <58999374+Gazook89@users.noreply.github.com>
Date: Thu, 1 Dec 2022 10:52:30 -0600
Subject: [PATCH] encode filename string to allow non-latin characters

---
 server/app.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/server/app.js b/server/app.js
index f847ac2dc..4c4d9e222 100644
--- a/server/app.js
+++ b/server/app.js
@@ -192,12 +192,19 @@ app.get('/download/:id', asyncHandler(getBrew('share')), (req, res)=>{
 	sanitizeBrew(brew, 'share');
 	const prefix = 'HB - ';
 
+	const encodeRFC3986ValueChars = (str)=>{
+		return (
+			encodeURIComponent(str)
+				.replace(/[!'()*]/g, (char)=>{`%${char.charCodeAt(0).toString(16).toUpperCase()}`;})
+		);
+	};
+
 	let fileName = sanitizeFilename(`${prefix}${brew.title}`).replaceAll(' ', '');
 	if(!fileName || !fileName.length) { fileName = `${prefix}-Untitled-Brew`; };
 	res.set({
 		'Cache-Control'       : 'no-cache',
 		'Content-Type'        : 'text/plain',
-		'Content-Disposition' : `attachment; filename="${fileName}.txt"`
+		'Content-Disposition' : `attachment; filename*=UTF-8''${encodeRFC3986ValueChars(fileName)}.txt`
 	});
 	res.status(200).send(brew.text);
 });