From e4c2754493ca3f85d0e782201d6be3fc8cf5a353 Mon Sep 17 00:00:00 2001
From: C-3PO <c-3po@jedipedia.net>
Date: Wed, 4 Jul 2018 19:36:25 +0200
Subject: [PATCH] =?UTF-8?q?=E2=9A=A0=20Add=20error=20message=20if=20file?=
 =?UTF-8?q?=20too=20large?=
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---
 src/cdn/getUrlContents.ts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/cdn/getUrlContents.ts b/src/cdn/getUrlContents.ts
index 6715394..c12b478 100644
--- a/src/cdn/getUrlContents.ts
+++ b/src/cdn/getUrlContents.ts
@@ -1,5 +1,7 @@
 import * as http from 'http';
 
+const MAX_MEMORY_SIZE = 100 * 1024 * 1024;
+
 export default function getUrlContents({ host, path }: {host: string, path: string}): Promise<ArrayBuffer> {
   return new Promise((resolve, reject) => {
     const request = http.request({
@@ -11,6 +13,11 @@ export default function getUrlContents({ host, path }: {host: string, path: stri
         return reject(`Expected status code 200 but received ${response.statusCode}`);
       }
       const headerLength = Number(response.headers['content-length']);
+      if (headerLength > MAX_MEMORY_SIZE) {
+        reject('File size too large to be handled in memory.');
+        request.abort();
+        return;
+      }
 
       const chunkList: Buffer[] = [];
       let totalLength = 0;