From 18a9744f9676fad945662649681c7aa8b9a203ca Mon Sep 17 00:00:00 2001
From: enes <enes@nostrdev.com>
Date: Thu, 16 Jan 2025 19:19:34 +0100
Subject: [PATCH] fix(download): scan link detection

Fix #164
---
 src/pages/mod/index.tsx | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/pages/mod/index.tsx b/src/pages/mod/index.tsx
index 0e93253..e01dca9 100644
--- a/src/pages/mod/index.tsx
+++ b/src/pages/mod/index.tsx
@@ -29,7 +29,9 @@ import {
   checkUrlForFile,
   copyTextToClipboard,
   downloadFile,
-  getFilenameFromUrl
+  getFilenameFromUrl,
+  isReachable,
+  isValidUrl
 } from '../../utils'
 import { Comments } from '../../components/comment'
 import { PublishDetails } from 'components/Internal/PublishDetails'
@@ -615,11 +617,25 @@ const Download = ({
 }: DownloadUrl) => {
   const [showAuthDetails, setShowAuthDetails] = useState(false)
   const [showNotice, setShowNotice] = useState(false)
-  const showScanNotice = !malwareScanLink
+  const [showScanNotice, setShowCanNotice] = useState(false)
 
   useDidMount(async () => {
     const isFile = await checkUrlForFile(url)
     setShowNotice(!isFile)
+
+    // Check the malware scan url
+    // if it's valid URL
+    // if it's reachable
+    // if it contains sha256
+    const regex = /\b[a-fA-F0-9]{64}\b/
+    setShowCanNotice(
+      !(
+        malwareScanLink &&
+        isValidUrl(malwareScanLink) &&
+        (await isReachable(malwareScanLink)) &&
+        regex.test(url)
+      )
+    )
   })
 
   const handleDownload = () => {