From 5c40eb6b78367d0d76f361a65f196023e3f540dc Mon Sep 17 00:00:00 2001
From: "Paul S. Owen" <psotfx@users.sourceforge.net>
Date: Sun, 23 Feb 2003 00:54:46 +0000
Subject: [PATCH] fix issue with HTML parsing and nasty on/style tags +
 incorrect matching of allowed tags

git-svn-id: file:///svn/phpbb/branches/phpBB-2_0_0@3513 89ea8834-ac86-4346-8a33-228a782c2dd0
---
 phpBB/includes/functions_post.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/phpBB/includes/functions_post.php b/phpBB/includes/functions_post.php
index b5ae99d289..d4cf5ae483 100644
--- a/phpBB/includes/functions_post.php
+++ b/phpBB/includes/functions_post.php
@@ -72,9 +72,9 @@ function prepare_message($message, $html_on, $bbcode_on, $smile_on, $bbcode_uid
 				for ($i = 0; $i < sizeof($allowed_html_tags); $i++)
 				{
 					$match_tag = trim($allowed_html_tags[$i]);
-					if (preg_match('#^<\/?' . $match_tag . '(?!(.*?)((style)|( on[\w]+?[\s]?=))[\s]*?)#i', $hold_string))
+					if (preg_match('#^<\/?' . $match_tag . '[> ]#i', $hold_string))
 					{
-						$tagallowed = true;
+						$tagallowed = (preg_match('#^<\/?' . $match_tag . ' .*?(style[ ]*?=|on[\w]+[ ]*?=)#i', $hold_string)) ? false : true;
 					}
 				}