From 5be24af034d4d2fdb6ab63afb2bd5e2d711df6c5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E0=A4=95=E0=A4=BE=E0=A4=B0=E0=A4=A4=E0=A5=8B=E0=A4=AB?=
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 <aditya@netroy.in>
Date: Tue, 17 Sep 2024 14:58:43 +0200
Subject: [PATCH] feat(core): Allow customizing max file size in form-data
 payloads for webhooks

---
 packages/@n8n/config/src/configs/endpoints.config.ts | 4 ++++
 packages/@n8n/config/test/config.test.ts             | 1 +
 packages/cli/src/webhooks/webhook-helpers.ts         | 3 +++
 3 files changed, 8 insertions(+)

diff --git a/packages/@n8n/config/src/configs/endpoints.config.ts b/packages/@n8n/config/src/configs/endpoints.config.ts
index 9905d9f48aaf0..4ec58ccf0d40d 100644
--- a/packages/@n8n/config/src/configs/endpoints.config.ts
+++ b/packages/@n8n/config/src/configs/endpoints.config.ts
@@ -65,6 +65,10 @@ export class EndpointsConfig {
 	@Env('N8N_PAYLOAD_SIZE_MAX')
 	payloadSizeMax: number = 16;
 
+	/** Max payload size for files in form-data webhook payloads in MiB */
+	@Env('N8N_FORMDATA_FILE_SIZE_MAX')
+	formDataFileSizeMax: number = 200;
+
 	@Nested
 	metrics: PrometheusMetricsConfig;
 
diff --git a/packages/@n8n/config/test/config.test.ts b/packages/@n8n/config/test/config.test.ts
index 118cf5a1bf757..f7c1d48e21c09 100644
--- a/packages/@n8n/config/test/config.test.ts
+++ b/packages/@n8n/config/test/config.test.ts
@@ -176,6 +176,7 @@ describe('GlobalConfig', () => {
 			formTest: 'form-test',
 			formWaiting: 'form-waiting',
 			payloadSizeMax: 16,
+			formDataFileSizeMax: 200,
 			rest: 'rest',
 			webhook: 'webhook',
 			webhookTest: 'webhook-test',
diff --git a/packages/cli/src/webhooks/webhook-helpers.ts b/packages/cli/src/webhooks/webhook-helpers.ts
index 3b5ffa3466df2..064ef95eb14a6 100644
--- a/packages/cli/src/webhooks/webhook-helpers.ts
+++ b/packages/cli/src/webhooks/webhook-helpers.ts
@@ -6,6 +6,7 @@
 /* eslint-disable prefer-spread */
 /* eslint-disable @typescript-eslint/no-unsafe-member-access */
 /* eslint-disable @typescript-eslint/restrict-template-expressions */
+import { GlobalConfig } from '@n8n/config';
 import type express from 'express';
 import formidable from 'formidable';
 import get from 'lodash/get';
@@ -214,9 +215,11 @@ export async function executeWebhook(
 		if (!binaryData) {
 			const { contentType, encoding } = req;
 			if (contentType === 'multipart/form-data') {
+				const { formDataFileSizeMax } = Container.get(GlobalConfig).endpoints;
 				const form = formidable({
 					multiples: true,
 					encoding: encoding as formidable.BufferEncoding,
+					maxFileSize: formDataFileSizeMax,
 					// TODO: pass a custom `fileWriteStreamHandler` to create binary data files directly
 				});
 				req.body = await new Promise((resolve) => {