From: MrWouterNL <wouter@dedroog.com>
Date: Mon, 21 Mar 2022 19:46:14 +0000 (+0100)
Subject: [BUGFIX] Disallow file preview for image/svg+xml files
X-Git-Tag: 4.4.0~4
X-Git-Url: https://git.p6c8.net/jirafeau_mojo42.git/commitdiff_plain/refs/merge-requests/103/head

[BUGFIX] Disallow file preview for image/svg+xml files
---

diff --git a/lib/functions.js.php b/lib/functions.js.php
index 7cf1da8..14fad1d 100644
--- a/lib/functions.js.php
+++ b/lib/functions.js.php
@@ -182,16 +182,17 @@ function show_link (reference, delete_code, crypt_key, date)
         }
 
         // Test if content can be previewed
-         type = document.getElementById('file_select').files[0].type;
-         if (type.startsWith('image/') ||
-                type.startsWith('audio') ||
-                type.startsWith('text/plain') ||
-                type.startsWith('video/'))
-         {
+        type = document.getElementById('file_select').files[0].type;
+        if ((type.startsWith('image/')
+                || type.startsWith('audio')
+                || type.startsWith('text/plain')
+                || type.startsWith('video/'))
+            && !type.includes('image/svg+xml'))
+        {
             document.getElementById('preview_link').href = preview_link_href;
             document.getElementById('preview_link_text').innerHTML = web_root + preview_link_href;
             document.getElementById('upload_finished_preview').style.display = '';
-         }
+        }
     }
 
     // Direct download link
diff --git a/lib/functions.php b/lib/functions.php
index c831b73..6e5c886 100644
--- a/lib/functions.php
+++ b/lib/functions.php
@@ -511,7 +511,7 @@ function jirafeau_is_viewable($mime)
     if (!empty($mime)) {
         $viewable = array('image', 'video', 'audio');
         $decomposed = explode('/', $mime);
-        if (in_array($decomposed[0], $viewable)) {
+        if (in_array($decomposed[0], $viewable) && strpos($mime, 'image/svg+xml') === false) {
             return true;
         }
         $viewable = array('text/plain');