From 429e1e9a073da23cc7f329fae11ac4e0f1b7c66c Mon Sep 17 00:00:00 2001
From: Ken <ken@open.gov.sg>
Date: Fri, 7 Jun 2024 10:33:38 +0800
Subject: [PATCH] check for truthiness of fieldname in receiver

---
 src/app/modules/submission/receiver/receiver.service.ts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/app/modules/submission/receiver/receiver.service.ts b/src/app/modules/submission/receiver/receiver.service.ts
index aedf573827..f0aafdb071 100644
--- a/src/app/modules/submission/receiver/receiver.service.ts
+++ b/src/app/modules/submission/receiver/receiver.service.ts
@@ -99,6 +99,13 @@ export const configureMultipartReceiver = (
         // (like Chinese, Tamil, etc), e.g.
         // `utf8-with-endash – test.txt` -> `utf8-with-endash â�� test.txt`.
         // See https://github.com/mscdex/busboy/issues/274.
+        if (!fieldname) {
+          logger.error({
+            message: 'Error while attempting to parse form fieldname',
+            meta: logMeta,
+          })
+          return reject(new MultipartContentParsingError())
+        }
         const utf8Fieldname = Buffer.from(fieldname, 'latin1').toString('utf8')
         if (filename) {
           const buffers: Buffer[] = []