From 3386c576704581d53d20eec2cdc0a031dea55e2b Mon Sep 17 00:00:00 2001
From: "D. Berge" <dberge@aaltronav.eu>
Date: Sun, 29 Oct 2023 11:35:26 +0100
Subject: [PATCH] Add setContentDisposition() utility function.

It checks if a request has a `filename` search parameter and if
so, set the Content-Disposition response header to attachment
with the provided filename.
---
 lib/www/server/lib/utils/index.js                 | 3 ++-
 lib/www/server/lib/utils/setContentDisposition.js | 8 ++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)
 create mode 100644 lib/www/server/lib/utils/setContentDisposition.js

diff --git a/lib/www/server/lib/utils/index.js b/lib/www/server/lib/utils/index.js
index a040421..bae0fee 100644
--- a/lib/www/server/lib/utils/index.js
+++ b/lib/www/server/lib/utils/index.js
@@ -8,5 +8,6 @@ module.exports = {
 	removeNulls: require('./removeNulls'),
 	logicalPath: require('./logicalPath'),
 	ranges: require('./ranges'),
-	unique: require('./unique')
+	unique: require('./unique'),
+	setContentDisposition: require('./setContentDisposition')
 };
diff --git a/lib/www/server/lib/utils/setContentDisposition.js b/lib/www/server/lib/utils/setContentDisposition.js
new file mode 100644
index 0000000..811a9e1
--- /dev/null
+++ b/lib/www/server/lib/utils/setContentDisposition.js
@@ -0,0 +1,8 @@
+
+function setContentDisposition (req, res) {
+	if (req.query.filename) {
+		res.set("Content-Disposition", `attachment; filename="${req.query.filename}"`);
+	}
+}
+
+module.exports = setContentDisposition;