From 0c92275fbeb9d0170a0ee3626cedb7fc328687e5 Mon Sep 17 00:00:00 2001
From: webchick <webchick@24967.no-reply.drupal.org>
Date: Fri, 30 Sep 2011 12:53:51 -0700
Subject: Issue #1113702 by franz: Fixed Comment in url_is_external() wrong.

---
 includes/common.inc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/includes/common.inc b/includes/common.inc
index ba0b6fffe..3b32a2083 100644
--- a/includes/common.inc
+++ b/includes/common.inc
@@ -2196,8 +2196,9 @@ function url($path = NULL, array $options = array()) {
  */
 function url_is_external($path) {
   $colonpos = strpos($path, ':');
-  // Only call the slow drupal_strip_dangerous_protocols() if $path contains a
-  // ':' before any / ? or #.
+  // Avoid calling drupal_strip_dangerous_protocols() if there is any
+  // slash (/), hash (#) or question_mark (?) before the colon (:)
+  // occurrence - if any - as this would clearly mean it is not a URL.
   return $colonpos !== FALSE && !preg_match('![/?#]!', substr($path, 0, $colonpos)) && drupal_strip_dangerous_protocols($path) == $path;
 }
 
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