Changeset 15437

Timestamp:

07/18/2010 01:46:35 PM (16 years ago)

Author:

ryan

Message:

Hex octets are case-insenstive. Don't 301 when the only octet case differs. Props hakre. fixes #14292 for 3.1

File:

• trunk/wp-includes/canonical.php (modified) (1 diff)

trunk/wp-includes/canonical.php

@@ -344 +344 @@
         if ( !$redirect_url || $redirect_url == $requested_url )
                 return false;
+                
+        // Hex encoded octets are case-insensitive. 
+        if ( false !== strpos($requested_url, '%') ) {
+                if ( !function_exists('lowercase_octets') ) {
+                        function lowercase_octets($matches) { 
+                                return strtolower( $matches[0] ); 
+                        } 
+                }
+                $requested_url = preg_replace_callback('|%[a-fA-F0-9][a-fA-F0-9]|', 'lowercase_octets', $requested_url);
+        }
+
+        // Hex encoded octets are case-insensitive.
+        if ( false !== strpos($requested_url, '%') ) {
+                function lowercase_octets($matches) {
+                        return strtolower($matches[0]);
+                }
+                $requested_url = preg_replace_callback('|%[a-fA-F0-9][a-fA-F0-9]|', 'lowercase_octets', $requested_url);
+        }
 
         // Note that you can use the "redirect_canonical" filter to cancel a canonical redirect for whatever reason by returning FALSE