From c7a02cc7ee0a795373d197222fb927038899552d Mon Sep 17 00:00:00 2001
From: Andreas Richter <708186+richtera@users.noreply.github.com>
Date: Tue, 20 Feb 2024 04:30:39 -0500
Subject: [PATCH] fix: crlf was not working correctly.

---
 src/lib/getDataFromExternalSources.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/lib/getDataFromExternalSources.ts b/src/lib/getDataFromExternalSources.ts
index 06bbd2e5..2ab10bae 100644
--- a/src/lib/getDataFromExternalSources.ts
+++ b/src/lib/getDataFromExternalSources.ts
@@ -101,6 +101,9 @@ export const getDataFromExternalSources = (
             // - check whether those could represent valid JSON data.
             // - then validate the data as JSON
             // - then verfiy the data against the verification method
+
+            // Improved JSON detection. We now check the first and up to the last 3 bytes.
+            // The 3 bytes can be `]` or '}' with either SPACE, LF or CRLF at the end.
             const capture: number[] = [];
             capture.push(receivedData[0]);
             if (receivedData.length > 3) {
@@ -121,7 +124,7 @@ export const getDataFromExternalSources = (
             // Check if the beginning or end are
             // { and } => JSON.stringify({...}) => pretty much 100% of our JSON will be this.
             // [ and ] => JSON.stringify([...])
-            if (/^(\[.*\]|\{.*\})\s?$/.test(key)) {
+            if (/^(\[.*\]|\{.*\})\s*$/.test(key)) {
               const json = Buffer.from(receivedData).toString();
               const value = JSON.parse(json);
               if (isDataAuthentic(value, urlDataWithHash.verification)) {