From f3d419b74e72604279b0ad2a0b30ce505728f01b Mon Sep 17 00:00:00 2001
From: Dries Buytaert <dries@buytaert.net>
Date: Sat, 27 Mar 2004 09:32:12 +0000
Subject: [PATCH] - Fixed bug #6697: improved the URL validation function

---
 includes/common.inc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/includes/common.inc b/includes/common.inc
index 47fb29bd9e6..3cb2ba41f91 100644
--- a/includes/common.inc
+++ b/includes/common.inc
@@ -563,10 +563,10 @@ function valid_email_address($mail) {
  */
 function valid_url($url, $absolute = false) {
   if ($absolute) {
-    return preg_match("/^http:\/\/[a-zA-z0-9\/:_\-_\.,]+$/", $url);
+    return preg_match("/^(http|https|ftp):\/\/[a-z0-9\/:_\-_\.\?,~=#&]+$/i", $url);
   }
   else {
-    return preg_match("/^[a-zA-z0-9\/:_\-_\.,]+$/", $url);
+    return preg_match("/^[a-z0-9\/:_\-_\.,]+$/i", $url);
   }
 }