From 3595a05361ac372ccc2e2b8d6b5b9bc1f0de2c33 Mon Sep 17 00:00:00 2001
From: Christian Schneider
Date: Sun, 30 May 2021 08:23:34 +0200
Subject: Allow some more tags structuring texts visibly

---
 it_html.class | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'it_html.class')

diff --git a/it_html.class b/it_html.class
index fb26544..70994e7 100644
--- a/it_html.class
+++ b/it_html.class
@@ -395,7 +395,7 @@ function _strip_tags($html)
 
 /**
  * Return HTML with all evil things stripped. Allowed are a coupld of simple
- * tags like div, p, i, b, br without attributes, a with absolute href,
+ * tags like div, p, i, b, strong, h1 - h6, br without attributes, a with absolute href,
  * img with absolute src url. Also ensures that tags are balanced.
  * @param $html HTML string to be sanitized
  * @return Sanitized HTML
@@ -409,7 +409,7 @@ static function sanitize($html)
 	$html = it::replace(array('[\0\s]+' => " "), $html);	# \s also matches \r and \n
 	$urlpattern = 'https?://[^">]+';
 
-	if ($tag = it::match("(.*)<(div|p|i|b)\b[^>]*>(.*?)</\\2>(.*)", $html))
+	if ($tag = it::match("(.*)<(div|p|i|b|strong|h[1-6])\b[^>]*>(.*?)</\\2>(.*)", $html))
 	{
 		# Simple tags with content, no attributes kept
 		list($head, $tagname, $content, $tail) = $tag;
-- 
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