From c06502cd7668ff35bee3814b0dd93ccce83057db Mon Sep 17 00:00:00 2001
From: Bart <bartblaze@users.noreply.github.com>
Date: Wed, 11 Dec 2019 22:58:33 +0100
Subject: [PATCH] Improve RTF detection

Certain RTF files may attempt to thwart detection by having a malformed RTF header, such as **{\rt000**. Removing 0x66 will result in detecting these malformed yet valid RTFs as well.

Additional reading:
https://www.decalage.info/rtf_tricks#Trick_1:_Incomplete_RTF_Header
---
 src/core/lib/FileSignatures.mjs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/core/lib/FileSignatures.mjs b/src/core/lib/FileSignatures.mjs
index 17b17f23..5f5c0d2f 100644
--- a/src/core/lib/FileSignatures.mjs
+++ b/src/core/lib/FileSignatures.mjs
@@ -1008,8 +1008,7 @@ export const FILE_SIGNATURES = {
                 0: 0x7b,
                 1: 0x5c,
                 2: 0x72,
-                3: 0x74,
-                4: 0x66
+                3: 0x74
             },
             extractor: extractRTF
         },