fix(minio): metadata as object not string

A change in the minio JS SDK resulted in uploads being stored
with a defect metadata object in minio, resulting in all
files served as application/octet-stream. This was caused as
the fifth argument to putObject is a metadata object and not
the content-type alone anymore.

Signed-off-by: Erik Michelson <github@erik.michelson.eu>

lib/web/imageRouter/minio.js

@@ -35,7 +35,9 @@ exports.uploadImage = function (imagePath, callback) {
     const key = path.join('uploads', path.basename(imagePath))
     const protocol = config.minio.secure ? 'https' : 'http'
 
-    minioClient.putObject(config.s3bucket, key, buffer, buffer.size, getImageMimeType(imagePath), function (err, data) {
+    minioClient.putObject(config.s3bucket, key, buffer, buffer.size, {
+      'Content-Type': getImageMimeType(imagePath) || 'application/octet-stream'
+    }, function (err, data) {
       if (err) {
         callback(new Error(err), null)
         return

public/docs/release-notes.md

@@ -8,6 +8,7 @@
 ### Bugfixes
 - Fix a crash when having numeric-only values in opengraph frontmatter
 - Fix unnecessary session creation on healthcheck endpoint
+- Fix defect metadata being sent for minio uploads
 
 ## <i class="fa fa-tag"></i> 1.9.9 <i class="fa fa-calendar-o"></i> 2023-07-30