first commit

wp-admin/network/admin.php

@@ -0,0 +1,36 @@
+<?php
+/**
+ * WordPress Network Administration Bootstrap
+ *
+ * @package WordPress
+ * @subpackage Multisite
+ * @since 3.1.0
+ */
+
+define( 'WP_NETWORK_ADMIN', true );
+
+/** Load WordPress Administration Bootstrap */
+require_once dirname( __DIR__ ) . '/admin.php';
+
+// Do not remove this check. It is required by individual network admin pages.
+if ( ! is_multisite() ) {
+	wp_die( __( 'Multisite support is not enabled.' ) );
+}
+
+$redirect_network_admin_request = ( 0 !== strcasecmp( $current_blog->domain, $current_site->domain ) || 0 !== strcasecmp( $current_blog->path, $current_site->path ) );
+
+/**
+ * Filters whether to redirect the request to the Network Admin.
+ *
+ * @since 3.2.0
+ *
+ * @param bool $redirect_network_admin_request Whether the request should be redirected.
+ */
+$redirect_network_admin_request = apply_filters( 'redirect_network_admin_request', $redirect_network_admin_request );
+
+if ( $redirect_network_admin_request ) {
+	wp_redirect( network_admin_url() );
+	exit;
+}
+
+unset( $redirect_network_admin_request );