Ticket #8420: wp.2.patch

functions.php

@@ -2664 +2664 @@
  * @param string|array $args Optional arguements to control behaviour.
  */
 function wp_die( $message, $title = '', $args = array() ) {
-        if ( defined( 'DOING_AJAX' ) && DOING_AJAX )
-                die('-1');
-
+   die;
         if ( function_exists( 'apply_filters' ) ) {
                 $function = apply_filters( 'wp_die_handler', '_default_wp_die_handler');
         } else {
@@ -2676 +2674 @@
         call_user_func( $function, $message, $title, $args );
 }
 
+function _ajax_die_handler_filter() { 
+    return '_ajax_wp_die_handler'; 
+}
+
 /**
  * Kill WordPress execution and display HTML message with error message.
  *
@@ -2769 +2771 @@
 }
 
 /**
+ * Kill WordPress execution and send AJAX response with error message.
+ *
+ * This is AJAX-version of the default handler for wp_die
+ *
+ * @since 3.0.0
+ * @access private
+ *
+ * @param string $message Error message.
+ * @param string $title Error title.
+ * @param string|array $args Optional arguements to control behaviour.
+ */
+function _ajax_wp_die_handler( $message, $title = '', $args = array() ) {
+        $defaults = array( 'response' => 500 );
+        $r = wp_parse_args($args, $defaults);
+        $have_gettext = function_exists('__');        
+        if ( !function_exists( 'did_action' ) || !did_action( 'admin_head' ) ) :
+        if ( !headers_sent() ) {
+                status_header( $r['response'] );
+                nocache_headers();
+                header( 'Content-Type: text/html; charset=utf-8' );
+        }        
+        $resp   =   new WP_Ajax_Response( array(
+                        'what' => 'autosave',
+                        'id' => $message,
+                        'data' => $message
+                ) );
+        $resp->send();
+        die();
+}
+
+/**
  * Retrieve the WordPress home page URL.
  *
  * If the constant named 'WP_HOME' exists, then it willl be used and returned by