Optional: Allow uploading by URL

1 files changed, 2 insertions, 2 deletions

diff --git a/inc/config.php b/inc/config.php
index 64fdba92..4858274d 100644
--- a/inc/config.php
+++ b/inc/config.php
@@ -1314,6 +1314,6 @@
 	// is the absolute maximum, because MySQL cannot handle table names greater than 64 characters.
 	$config['board_regex'] = '[0-9a-zA-Z$_\x{0080}-\x{FFFF}]{1,58}';
 
-	// Complex regular expression to catch URLs.
-	$config['url_regex'] = '/' . '(https?|ftp):\/\/' . '(([\w\-]+\.)+[a-zA-Z]{2,6}|\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})' . '(:\d+)?' . '(\/([\w\-~.#\/?=&;:+%!*\[\]@$\'()+,|\^]+)?)?' . '/';
+	// Regex for URLs.
+	$config['url_regex'] = '@^(?i)\b((?:[a-z][\w-]+:(?:/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:\'".,<>?«»“”‘’]))$@';