From a1a4464304700c6ee38ee299d72c6d65fdab99d0 Mon Sep 17 00:00:00 2001
From: freamon <f78673709@gmail.com>
Date: Sat, 6 Apr 2024 10:43:06 +0100
Subject: [PATCH] Avoid returning empty anchors in html

---
 app/utils.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/app/utils.py b/app/utils.py
index 44d62329..d100c842 100644
--- a/app/utils.py
+++ b/app/utils.py
@@ -211,7 +211,9 @@ def allowlist_html(html: str) -> str:
             if tag.name == 'table':
                 tag.attrs['class'] = 'table'
 
-    return str(soup)
+    # avoid returning empty anchors
+    re_empty_anchor = re.compile(r'<a href="(.*?)" rel="nofollow ugc" target="_blank"><\/a>')
+    return re_empty_anchor.sub(r'<a href="\1" rel="nofollow ugc" target="_blank">\1</a>', str(soup))
 
 
 def markdown_to_html(markdown_text) -> str: