Changeset 15437

Timestamp:

07/18/2010 01:46:35 PM (13 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