<?php
/*
Plugin Name: WordPress Importer
Plugin URI: http://wordpress.org/extend/plugins/wordpress-importer/
Description: Import posts, pages, comments, custom fields, categories, tags and more from a WordPress export file.
Author: wordpressdotorg
Author URI: http://wordpress.org/
Version: 0.6.1
Text Domain: wordpress-importer
License: GPL version 2 or later - http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*/

if ( ! defined( 'WP_LOAD_IMPORTERS' ) )
	return;

/** Display verbose errors */
define( 'IMPORT_DEBUG', true );

// Load Importer API
require_once ABSPATH . 'wp-admin/includes/import.php';

if ( ! class_exists( 'WP_Importer' ) ) {
	$class_wp_importer = ABSPATH . 'wp-admin/includes/class-wp-importer.php';
	if ( file_exists( $class_wp_importer ) )
		require $class_wp_importer;
}

// include WXR file parsers
if ( !class_exists('WXR_Parser') ) { require dirname( __FILE__ ) . '/parsers.php'; }


/**
 * WordPress Importer class for managing the import process of a WXR file
 *
 * @package WordPress
 * @subpackage Importer
 */
if ( class_exists( 'WP_Importer' ) ) {
class ZN_WP_Import extends WP_Importer {
	var $max_wxr_version = 1.2; // max. supported WXR version

	var $id; // WXR attachment ID

	// information to import from WXR file
	var $version;
	var $authors = array();
	var $posts = array();
	var $terms = array();
	var $categories = array();
	var $tags = array();
	var $base_url = '';

	// mappings from old information to new
	var $processed_authors = array();
	var $author_mapping = array();
	var $processed_terms = array();
	var $processed_posts = array();
	var $post_orphans = array();
	var $processed_menu_items = array();
	var $menu_item_orphans = array();
	var $missing_menu_items = array();

	var $fetch_attachments = false;
	var $url_remap = array();
	var $featured_images = array();

	function WP_Import() { /* nothing */ }

	/**
	 * The main controller for the actual import stage.
	 *
	 * @param string $file Path to the WXR file for importing
	 */
	function import( $file , $step = 0,  $data = false ) {

		add_filter( 'import_post_meta_key', array( $this, 'is_valid_meta_key' ) );
		add_filter( 'http_request_timeout', array( &$this, 'bump_request_timeout' ) );

		$this->import_start( $file );

		$this->get_author_mapping();

		if( $step == '0' ){
			$this->set_data();
			$response = array(
					'status' => 'ok',
					'step'	=> 'process_categories',
					'response_text' => 'Starting import'
				);

			$this->zn_send_json( $response );
		}
		elseif( $step == 'process_categories' ){
			$this->zn_setup_data();

			wp_suspend_cache_invalidation( true );
			$this->process_categories();
			wp_suspend_cache_invalidation( false );

			$this->set_data();
			$response = array(
					'status' => 'ok',
					'step'	=> 'process_tags',
					'response_text' => 'Categories imported'
				);

			$this->zn_send_json( $response );
		}
		elseif( $step == 'process_tags' ){
			$this->zn_setup_data();

			wp_suspend_cache_invalidation( true );
				$this->process_tags();
			wp_suspend_cache_invalidation( false );


			$this->set_data();
			$response = array(
					'status' => 'ok',
					'step'	=> 'process_terms',
					'response_text' => 'Tags imported'
				);

			$this->zn_send_json( $response );
		}
		elseif( $step == 'process_terms' ){
			$this->zn_setup_data();

			wp_suspend_cache_invalidation( true );
				$this->process_terms();
			wp_suspend_cache_invalidation( false );


			$this->set_data();
			$response = array(
					'status' => 'ok',
					'step'	=> 'process_posts',
					'response_text' => 'Terms imported'
				);

			$this->zn_send_json( $response );
		}
		elseif( $step == 'process_posts' ){
			$this->zn_setup_data();

			$start = !empty( $data['start'] ) ? $data['start'] : 0;

			wp_suspend_cache_invalidation( true );
				$this->process_posts( $start );
			wp_suspend_cache_invalidation( false );


			$this->set_data();
			$response = array(
					'status' => 'ok',
					'step'	=> 'add_menu',
					'response_text' => 'Posts imported ... Only one thing left to do'
				);

			$this->zn_send_json( $response );
		}
		elseif( $step == 'add_menu' ){
			$this->zn_setup_data();

			// STE THE MAIN MENU
			$this->add_menu();

			$this->set_data();
			$response = array(
					'status' => 'ok',
					'step'	=> 'add_widgets',
					'response_text' => 'Menu added'
				);

			$this->zn_send_json( $response );
		}
		elseif( $step == 'add_widgets' ){
			$this->zn_setup_data();

			// STE THE MAIN MENU
			$this->add_widgets();

			$this->set_data();
			$response = array(
					'status' => 'ok',
					'step' => 'add_custom_icons',
					'response_text' => 'Widgets added'
				);

			$this->zn_send_json( $response );
		}
		elseif( $step == 'add_custom_icons' ){
			$this->zn_setup_data();

			$path = THEME_BASE.'/template_helpers/dummy_content/custom_icons/';
			if( file_exists( $path ) ){
				$this->add_custom_icons( $path );
			}

			$this->set_data();
			$response = array(
				'status' => 'ok',
				'step' => 'done',
				'response_text' => 'Custom Icons added'
			);

			$this->zn_send_json( $response );
		}
		elseif( $step == 'done' ){
			$this->zn_setup_data();
			// update incorrect/missing information in the DB
			$this->backfill_parents();
			$this->backfill_attachment_urls();
			$this->remap_featured_images();

			$this->import_end();
			$this->clear_data();

			$response = array(
					'status' => 'done',
					'response_text' => 'Import end'
				);
			$this->zn_send_json( $response );
		}


	}

	function add_custom_icons( $path ){

		$files = array_diff(scandir($path), array('..', '.'));

		foreach( $files as $file ){
			ZN()->icon_manager->do_icon_install( $path.$file, 'dummy_title' );
		}
	}

	function add_widgets(){
		$file =  THEME_BASE."/template_helpers/dummy_content/widgets.txt";
		if( ! is_file( $file ) ) {
			return false;
		}

		global $wp_registered_sidebars;

		$data = file_get_contents( $file );
		//print_z($data); die();
		$data = json_decode( $data, true );

		// Return if we have no widgets
		if ( empty( $data ) ) { return false; }

		$available_widgets = $this->get_available_widgets();

	// Get all existing widget instances
	$widget_instances = array();
	foreach ( $available_widgets as $widget_data ) {
		$widget_instances[$widget_data['id_base']] = get_option( 'widget_' . $widget_data['id_base'] );
	}
 // print_z( $widget_instances );die();
	// Begin results
	$results = array();

	// Loop import data's sidebars
	foreach ( $data as $sidebar_id => $widgets ) {

		// Check if sidebar is available on this site
		// Otherwise add widgets to inactive, and say so
		if ( isset( $wp_registered_sidebars[$sidebar_id] ) ) {
			$sidebar_available = true;
			$use_sidebar_id = $sidebar_id;
		} else {
			$sidebar_available = false;
			$use_sidebar_id = 'wp_inactive_widgets'; // add to inactive if sidebar does not exist in theme
		}


		// Loop widgets
		foreach ( $widgets as $widget_instance_id => $widget ) {

			$fail = false;

			// Get id_base (remove -# from end) and instance ID number
			$id_base = preg_replace( '/-[0-9]+$/', '', $widget_instance_id );
			$instance_id_number = str_replace( $id_base . '-', '', $widget_instance_id );

			// Does site support this widget?
			if ( ! $fail && ! isset( $available_widgets[$id_base] ) ) {
				$fail = true;
			}

			// Does widget with identical settings already exist in same sidebar?
			if ( ! $fail && isset( $widget_instances[$id_base] ) ) {

				// Get existing widgets in this sidebar
				$sidebars_widgets = get_option( 'sidebars_widgets' );
				$sidebar_widgets = isset( $sidebars_widgets[$use_sidebar_id] ) ? $sidebars_widgets[$use_sidebar_id] : array(); // check Inactive if that's where will go

				// Loop widgets with ID base
				$single_widget_instances = ! empty( $widget_instances[$id_base] ) ? $widget_instances[$id_base] : array();
				foreach ( $single_widget_instances as $check_id => $check_widget ) {

					// Is widget in same sidebar and has identical settings?
					if ( in_array( "$id_base-$check_id", $sidebar_widgets ) && (array) $widget == $check_widget ) {

						$fail = true;

						break;

					}

				}

			}

			// No failure
			if ( ! $fail ) {

				// Add widget instance
				$single_widget_instances = get_option( 'widget_' . $id_base ); // all instances for that widget ID base, get fresh every time
				$single_widget_instances = ! empty( $single_widget_instances ) ? $single_widget_instances : array( '_multiwidget' => 1 ); // start fresh if have to
				$single_widget_instances[] = (array) $widget; // add it

					// Get the key it was given
					end( $single_widget_instances );
					$new_instance_id_number = key( $single_widget_instances );

					// If key is 0, make it 1
					// When 0, an issue can occur where adding a widget causes data from other widget to load, and the widget doesn't stick (reload wipes it)
					if ( '0' === strval( $new_instance_id_number ) ) {
						$new_instance_id_number = 1;
						$single_widget_instances[$new_instance_id_number] = $single_widget_instances[0];
						unset( $single_widget_instances[0] );
					}

					// Move _multiwidget to end of array for uniformity
					if ( isset( $single_widget_instances['_multiwidget'] ) ) {
						$multiwidget = $single_widget_instances['_multiwidget'];
						unset( $single_widget_instances['_multiwidget'] );
						$single_widget_instances['_multiwidget'] = $multiwidget;
					}

					// Update option with new widget
					update_option( 'widget_' . $id_base, $single_widget_instances );

				// Assign widget instance to sidebar
				$sidebars_widgets = get_option( 'sidebars_widgets' ); // which sidebars have which widgets, get fresh every time
				$new_instance_id = $id_base . '-' . $new_instance_id_number; // use ID number from new widget instance
				$sidebars_widgets[$use_sidebar_id][] = $new_instance_id; // add new instance to sidebar
				update_option( 'sidebars_widgets', $sidebars_widgets ); // save the amended data


			}

		}
	}

	}

	function get_available_widgets() {
		global $wp_registered_widget_controls;

		$widget_controls = $wp_registered_widget_controls;

		$available_widgets = array();

		foreach ( $widget_controls as $widget ) {

			if ( ! empty( $widget['id_base'] ) && ! isset( $available_widgets[$widget['id_base']] ) ) { // no dupes

				$available_widgets[$widget['id_base']]['id_base'] = $widget['id_base'];
				$available_widgets[$widget['id_base']]['name'] = $widget['name'];

			}

		}

		return $available_widgets;
	}


	function zn_send_json( $response ) {

		while (ob_get_level()) {
		    ob_end_clean();
		}

		header( 'Content-Type: application/json; charset=' . get_option( 'blog_charset' ) );
		$response = json_encode( $response );
		echo '<div class="zn_json_response">';
		echo $response;
		echo '</div>';die();
		if ( defined( 'DOING_AJAX' ) && DOING_AJAX )
			wp_die();
		else
			die;
	}

	function add_menu() {
		
		// Menus to Import and assign - you can remove or add as many as you want
		$main_menu = get_term_by('name', 'Main Menu', 'nav_menu');
		set_theme_mod( 'nav_menu_locations', array(
                'main_navigation' => $main_menu->term_id
            )
		);

	}

	function set_data(){

		$data = array(
			'id' => $this->id,
			'processed_authors' => $this->processed_authors,
			'author_mapping' => $this->author_mapping,
			'processed_menu_items' => $this->processed_menu_items,
			'post_orphans' => $this->post_orphans,
			'processed_posts' => $this->processed_posts,
			'processed_terms' => $this->processed_terms,
			'url_remap' => $this->url_remap,
			'missing_menu_items' => $this->missing_menu_items,
			'menu_item_orphans' => $this->menu_item_orphans,
			'featured_images' => $this->featured_images
		);

		set_transient( 'zn_dummy_install', $data, 12 * HOUR_IN_SECONDS );
	}

	function clear_data(){
		delete_transient( 'zn_dummy_install' );
	}

	function zn_setup_data(  ){

		if( $data = get_transient( 'zn_dummy_install' ) ) {

			if( !empty($data['author_mapping']) ) { $this->author_mapping = $data['author_mapping']; }
			if( !empty($data['authors']) ) { $this->authors = $data['authors']; }
			if( !empty($data['base_url']) ) { $this->base_url = $data['base_url']; }
			if( !empty($data['categories']) ) { $this->categories = $data['categories']; }
			if( !empty($data['featured_images']) ) { $this->featured_images = $data['featured_images']; }
			if( !empty($data['fetch_attachments']) ) { $this->fetch_attachments = $data['fetch_attachments']; }
			if( !empty($data['id']) ) { $this->id = $data['id']; }
			if( !empty($data['max_wxr_version']) ) { $this->max_wxr_version = $data['max_wxr_version']; }
			if( !empty($data['menu_item_orphans']) ) { $this->menu_item_orphans = $data['menu_item_orphans']; }
			if( !empty($data['missing_menu_items']) ) { $this->missing_menu_items = $data['missing_menu_items']; }
			if( !empty($data['post_orphans']) ) { $this->post_orphans = $data['post_orphans']; }
			if( !empty($data['posts']) ) { $this->posts = $data['posts']; }
			if( !empty($data['processed_authors']) ) { $this->processed_authors = $data['processed_authors']; }
			if( !empty($data['processed_menu_items']) ) { $this->processed_menu_items = $data['processed_menu_items']; }
			if( !empty($data['processed_posts']) ) { $this->processed_posts = $data['processed_posts']; }
			if( !empty($data['processed_terms']) ) { $this->processed_terms = $data['processed_terms']; }
			if( !empty($data['tags']) ) { $this->tags = $data['tags']; }
			if( !empty($data['terms']) ) { $this->terms = $data['terms']; }
			if( !empty($data['url_remap']) ) { $this->url_remap = $data['url_remap']; }
			if( !empty($data['version']) ) { $this->version = $data['version']; }
		}
		else{
			echo 'nodata';
		}
	}


	/**
	 * Parses the WXR file and prepares us for the task of processing parsed data
	 *
	 * @param string $file Path to the WXR file for importing
	 */
	function import_start( $file ) {
		if ( ! is_file($file) ) {
			echo '<p><strong>' . __( 'Sorry, there has been an error.', 'wordpress-importer' ) . '</strong><br />';
			echo __( 'The file does not exist, please try again.', 'wordpress-importer' ) . '</p>';
			$this->footer();
			die();
		}

		$import_data = $this->parse( $file );

		if ( is_wp_error( $import_data ) ) {
			echo '<p><strong>' . __( 'Sorry, there has been an error.', 'wordpress-importer' ) . '</strong><br />';
			echo esc_html( $import_data->get_error_message() ) . '</p>';
			$this->footer();
			die();
		}

		$this->version = $import_data['version'];
		$this->get_authors_from_import( $import_data );
		$this->posts = $import_data['posts'];
		$this->terms = $import_data['terms'];
		$this->categories = $import_data['categories'];
		$this->tags = $import_data['tags'];
		$this->base_url = esc_url( $import_data['base_url'] );

		wp_defer_term_counting( true );
		wp_defer_comment_counting( true );

		do_action( 'import_start' );
	}

	/**
	 * Performs post-import cleanup of files and the cache
	 */
	function import_end() {
		wp_import_cleanup( $this->id );

		wp_defer_term_counting( false );
		wp_defer_comment_counting( false );

		wp_cache_flush();
		$taxonomies = get_taxonomies(); 
		foreach ( $taxonomies as $tax ) {
			delete_option( "{$tax}_children" );
			_get_term_hierarchy( $tax );

			$args = array( 'hide_empty' => 0, 'fields' => 'ids' ); 
			$terms = get_terms( $tax, $args ); 
			if( is_array( $terms ) && !empty( $terms ) ){
				wp_update_term_count_now( $terms, $tax );
			} 

		}



		do_action( 'import_end' );
	}




	/**
	 * Handles the WXR upload and initial parsing of the file to prepare for
	 * displaying author import options
	 *
	 * @return bool False if error uploading or invalid file, true otherwise
	 */
	function handle_upload() {
		$file = wp_import_handle_upload();

		if ( isset( $file['error'] ) ) {
			echo '<p><strong>' . __( 'Sorry, there has been an error.', 'wordpress-importer' ) . '</strong><br />';
			echo esc_html( $file['error'] ) . '</p>';
			return false;
		} else if ( ! file_exists( $file['file'] ) ) {
			echo '<p><strong>' . __( 'Sorry, there has been an error.', 'wordpress-importer' ) . '</strong><br />';
			printf( __( 'The export file could not be found at <code>%s</code>. It is likely that this was caused by a permissions problem.', 'wordpress-importer' ), esc_html( $file['file'] ) );
			echo '</p>';
			return false;
		}

		$this->id = (int) $file['id'];
		$import_data = $this->parse( $file['file'] );
		if ( is_wp_error( $import_data ) ) {
			echo '<p><strong>' . __( 'Sorry, there has been an error.', 'wordpress-importer' ) . '</strong><br />';
			echo esc_html( $import_data->get_error_message() ) . '</p>';
			return false;
		}

		$this->version = $import_data['version'];
		if ( $this->version > $this->max_wxr_version ) {
			echo '<div class="error"><p><strong>';
			printf( __( 'This WXR file (version %s) may not be supported by this version of the importer. Please consider updating.', 'wordpress-importer' ), esc_html($import_data['version']) );
			echo '</strong></p></div>';
		}

		$this->get_authors_from_import( $import_data );

		return true;
	}

	/**
	 * Retrieve authors from parsed WXR data
	 *
	 * Uses the provided author information from WXR 1.1 files
	 * or extracts info from each post for WXR 1.0 files
	 *
	 * @param array $import_data Data returned by a WXR parser
	 */
	function get_authors_from_import( $import_data ) {
		if ( ! empty( $import_data['authors'] ) ) {
			$this->authors = $import_data['authors'];
		// no author information, grab it from the posts
		} else {
			foreach ( $import_data['posts'] as $post ) {
				$login = sanitize_user( $post['post_author'], true );
				if ( empty( $login ) ) {
					printf( __( 'Failed to import author %s. Their posts will be attributed to the current user.', 'wordpress-importer' ), esc_html( $post['post_author'] ) );
					echo '<br />';
					continue;
				}

				if ( ! isset($this->authors[$login]) )
					$this->authors[$login] = array(
						'author_login' => $login,
						'author_display_name' => $post['post_author']
					);
			}
		}
	}


	/**
	 * Map old author logins to local user IDs based on decisions made
	 * in import options form. Can map to an existing user, create a new user
	 * or falls back to the current user in case of error with either of the previous
	 */
	function get_author_mapping() {
		if ( ! isset( $_POST['imported_authors'] ) )
			return;

		$create_users = $this->allow_create_users();

		foreach ( (array) $_POST['imported_authors'] as $i => $old_login ) {
			// Multisite adds strtolower to sanitize_user. Need to sanitize here to stop breakage in process_posts.
			$santized_old_login = sanitize_user( $old_login, true );
			$old_id = isset( $this->authors[$old_login]['author_id'] ) ? intval($this->authors[$old_login]['author_id']) : false;

			if ( ! empty( $_POST['user_map'][$i] ) ) {
				$user = get_userdata( intval($_POST['user_map'][$i]) );
				if ( isset( $user->ID ) ) {
					if ( $old_id )
						$this->processed_authors[$old_id] = $user->ID;
					$this->author_mapping[$santized_old_login] = $user->ID;
				}
			} else if ( $create_users ) {
				if ( ! empty($_POST['user_new'][$i]) ) {
					$user_id = wp_create_user( $_POST['user_new'][$i], wp_generate_password() );
				} else if ( $this->version != '1.0' ) {
					$user_data = array(
						'user_login' => $old_login,
						'user_pass' => wp_generate_password(),
						'user_email' => isset( $this->authors[$old_login]['author_email'] ) ? $this->authors[$old_login]['author_email'] : '',
						'display_name' => $this->authors[$old_login]['author_display_name'],
						'first_name' => isset( $this->authors[$old_login]['author_first_name'] ) ? $this->authors[$old_login]['author_first_name'] : '',
						'last_name' => isset( $this->authors[$old_login]['author_last_name'] ) ? $this->authors[$old_login]['author_last_name'] : '',
					);
					$user_id = wp_insert_user( $user_data );
				}

				if ( ! is_wp_error( $user_id ) ) {
					if ( $old_id )
						$this->processed_authors[$old_id] = $user_id;
					$this->author_mapping[$santized_old_login] = $user_id;
				} else {
					printf( __( 'Failed to create new user for %s. Their posts will be attributed to the current user.', 'wordpress-importer' ), esc_html($this->authors[$old_login]['author_display_name']) );
					if ( defined('IMPORT_DEBUG') && IMPORT_DEBUG )
						echo ' ' . $user_id->get_error_message();
					echo '<br />';
				}
			}

			// failsafe: if the user_id was invalid, default to the current user
			if ( ! isset( $this->author_mapping[$santized_old_login] ) ) {
				if ( $old_id )
					$this->processed_authors[$old_id] = (int) get_current_user_id();
				$this->author_mapping[$santized_old_login] = (int) get_current_user_id();
			}
		}
	}

	/**
	 * Create new categories based on import information
	 *
	 * Doesn't create a new category if its slug already exists
	 */
	function process_categories() {
		$this->categories = apply_filters( 'wp_import_categories', $this->categories );

		if ( empty( $this->categories ) )
			return;

		foreach ( $this->categories as $cat ) {
			// if the category already exists leave it alone
			$term_id = term_exists( $cat['category_nicename'], 'category' );
			if ( $term_id ) {
				if ( is_array($term_id) ) $term_id = $term_id['term_id'];
				if ( isset($cat['term_id']) )
					$this->processed_terms[intval($cat['term_id'])] = (int) $term_id;
				continue;
			}

			$category_parent = empty( $cat['category_parent'] ) ? 0 : category_exists( $cat['category_parent'] );
			$category_description = isset( $cat['category_description'] ) ? $cat['category_description'] : '';
			$catarr = array(
				'category_nicename' => $cat['category_nicename'],
				'category_parent' => $category_parent,
				'cat_name' => $cat['cat_name'],
				'category_description' => $category_description
			);

			$id = wp_insert_category( $catarr );
			if ( ! is_wp_error( $id ) ) {
				if ( isset($cat['term_id']) )
					$this->processed_terms[intval($cat['term_id'])] = $id;
			} else {
				printf( __( 'Failed to import category %s', 'wordpress-importer' ), esc_html($cat['category_nicename']) );
				if ( defined('IMPORT_DEBUG') && IMPORT_DEBUG )
					echo ': ' . $id->get_error_message();
				echo '<br />';
				continue;
			}
		}

		unset( $this->categories );
	}

	/**
	 * Create new post tags based on import information
	 *
	 * Doesn't create a tag if its slug already exists
	 */
	function process_tags() {
		$this->tags = apply_filters( 'wp_import_tags', $this->tags );

		if ( empty( $this->tags ) )
			return;

		foreach ( $this->tags as $tag ) {
			// if the tag already exists leave it alone
			$term_id = term_exists( $tag['tag_slug'], 'post_tag' );
			if ( $term_id ) {
				if ( is_array($term_id) ) $term_id = $term_id['term_id'];
				if ( isset($tag['term_id']) )
					$this->processed_terms[intval($tag['term_id'])] = (int) $term_id;
				continue;
			}

			$tag_desc = isset( $tag['tag_description'] ) ? $tag['tag_description'] : '';
			$tagarr = array( 'slug' => $tag['tag_slug'], 'description' => $tag_desc );

			$id = wp_insert_term( $tag['tag_name'], 'post_tag', $tagarr );
			if ( ! is_wp_error( $id ) ) {
				if ( isset($tag['term_id']) )
					$this->processed_terms[intval($tag['term_id'])] = $id['term_id'];
			} else {
				printf( __( 'Failed to import post tag %s', 'wordpress-importer' ), esc_html($tag['tag_name']) );
				if ( defined('IMPORT_DEBUG') && IMPORT_DEBUG )
					echo ': ' . $id->get_error_message();
				echo '<br />';
				continue;
			}
		}

		unset( $this->tags );
	}

	/**
	 * Create new terms based on import information
	 *
	 * Doesn't create a term its slug already exists
	 */
	function process_terms() {
		$this->terms = apply_filters( 'wp_import_terms', $this->terms );

		if ( empty( $this->terms ) )
			return;

		foreach ( $this->terms as $term ) {
			// if the term already exists in the correct taxonomy leave it alone
			$term_id = term_exists( $term['slug'], $term['term_taxonomy'] );
			if ( $term_id ) {
				if ( is_array($term_id) ) $term_id = $term_id['term_id'];
				if ( isset($term['term_id']) )
					$this->processed_terms[intval($term['term_id'])] = (int) $term_id;
				continue;
			}

			if ( empty( $term['term_parent'] ) ) {
				$parent = 0;
			} else {
				$parent = term_exists( $term['term_parent'], $term['term_taxonomy'] );
				if ( is_array( $parent ) ) $parent = $parent['term_id'];
			}
			$description = isset( $term['term_description'] ) ? $term['term_description'] : '';
			$termarr = array( 'slug' => $term['slug'], 'description' => $description, 'parent' => intval($parent) );

			$id = wp_insert_term( $term['term_name'], $term['term_taxonomy'], $termarr );
			if ( ! is_wp_error( $id ) ) {
				if ( isset($term['term_id']) )
					$this->processed_terms[intval($term['term_id'])] = $id['term_id'];
			} else {
				printf( __( 'Failed to import %s %s', 'wordpress-importer' ), esc_html($term['term_taxonomy']), esc_html($term['term_name']) );
				if ( defined('IMPORT_DEBUG') && IMPORT_DEBUG )
					echo ': ' . $id->get_error_message();
				echo '<br />';
				continue;
			}
		}

		unset( $this->terms );
	}

	/**
	 * Create new posts based on import information
	 *
	 * Posts marked as having a parent which doesn't exist will become top level items.
	 * Doesn't create a new post if: the post type doesn't exist, the given post ID
	 * is already noted as imported or a post with the same title and date already exists.
	 * Note that new/updated terms, comments and meta are imported for the last of the above.
	 */
	function process_posts( $start = 0 ) {

		$i = 0;
		$limit = $start + 5;

		$all = count($this->posts);

		foreach ( $this->posts as $post ) {
			$post = apply_filters( 'wp_import_post_data_raw', $post );
				
			    if ($i++ > $limit ) {

					$this->set_data();
					$response = array(
							'status' => 'ok',
							'step'	=> 'process_posts',
							'start'	=> $i - 1,
							'response_text' => 'Processed posts from '.$start.' to '.$limit.' out of '.$all
					);		

					ob_clean();    	
					$this->zn_send_json( $response );
			    	break;
			    } 
			    if ($i-1 < $start) continue;

			if ( ! post_type_exists( $post['post_type'] ) ) {
				printf( __( 'Failed to import &#8220;%s&#8221;: Invalid post type %s', 'wordpress-importer' ),
					esc_html($post['post_title']), esc_html($post['post_type']) );
				echo '<br />';
				do_action( 'wp_import_post_exists', $post );
				continue;
			}

			if ( isset( $this->processed_posts[$post['post_id']] ) && ! empty( $post['post_id'] ) )
				continue;

			if ( $post['status'] == 'auto-draft' )
				continue;

			if ( 'nav_menu_item' == $post['post_type'] ) {
				$this->process_menu_item( $post );
				continue;
			}

			if ( 'zn_pb_templates' == $post['post_type'] && $template_post_id = get_page_by_title( 'zn_pb_templates' , 'ARRAY_A' , 'zn_pb_templates' ) ){
				$this->process_templates( $post, $template_post_id );
				continue;
			}

			$post_type_object = get_post_type_object( $post['post_type'] );

			$post_exists = post_exists( $post['post_title'], '', $post['post_date'] );
			if ( $post_exists && get_post_type( $post_exists ) == $post['post_type'] ) {
				printf( __('%s &#8220;%s&#8221; already exists.', 'wordpress-importer'), $post_type_object->labels->singular_name, esc_html($post['post_title']) );
				echo '<br />';
				$comment_post_ID = $post_id = $post_exists;
			} else {
				$post_parent = (int) $post['post_parent'];
				if ( $post_parent ) {
					// if we already know the parent, map it to the new local ID
					if ( isset( $this->processed_posts[$post_parent] ) ) {
						$post_parent = $this->processed_posts[$post_parent];
					// otherwise record the parent for later
					} else {
						$this->post_orphans[intval($post['post_id'])] = $post_parent;
						$post_parent = 0;
					}
				}

				// map the post author
				$author = sanitize_user( $post['post_author'], true );
				if ( isset( $this->author_mapping[$author] ) )
					$author = $this->author_mapping[$author];
				else
					$author = (int) get_current_user_id();

				$postdata = array(
					'import_id' => $post['post_id'], 'post_author' => $author, 'post_date' => $post['post_date'],
					'post_date_gmt' => $post['post_date_gmt'], 'post_content' => $post['post_content'],
					'post_excerpt' => $post['post_excerpt'], 'post_title' => $post['post_title'],
					'post_status' => $post['status'], 'post_name' => $post['post_name'],
					'comment_status' => $post['comment_status'], 'ping_status' => $post['ping_status'],
					'guid' => $post['guid'], 'post_parent' => $post_parent, 'menu_order' => $post['menu_order'],
					'post_type' => $post['post_type'], 'post_password' => $post['post_password']
				);

				$original_post_ID = $post['post_id'];
				$postdata = apply_filters( 'wp_import_post_data_processed', $postdata, $post );

				if ( 'attachment' == $postdata['post_type'] ) {
					$remote_url = ! empty($post['attachment_url']) ? $post['attachment_url'] : $post['guid'];

					// try to use _wp_attached file for upload folder placement to ensure the same location as the export site
					// e.g. location is 2003/05/image.jpg but the attachment post_date is 2010/09, see media_handle_upload()
					$postdata['upload_date'] = $post['post_date'];
					if ( isset( $post['postmeta'] ) ) {
						foreach( $post['postmeta'] as $meta ) {
							if ( $meta['key'] == '_wp_attached_file' ) {
								if ( preg_match( '%^[0-9]{4}/[0-9]{2}%', $meta['value'], $matches ) )
									$postdata['upload_date'] = $matches[0];
								break;
							}
						}
					}

					$comment_post_ID = $post_id = $this->process_attachment( $postdata, $remote_url );
				} else {
					$comment_post_ID = $post_id = wp_insert_post( $postdata, true );
					do_action( 'wp_import_insert_post', $post_id, $original_post_ID, $postdata, $post );
				}

				if ( is_wp_error( $post_id ) ) {
					printf( __( 'Failed to import %s &#8220;%s&#8221;', 'wordpress-importer' ),
						$post_type_object->labels->singular_name, esc_html($post['post_title']) );
					if ( defined('IMPORT_DEBUG') && IMPORT_DEBUG )
						echo ': ' . $post_id->get_error_message();
					echo '<br />';
					continue;
				}

				if ( $post['is_sticky'] == 1 )
					stick_post( $post_id );
			}

			// map pre-import ID to local ID
			$this->processed_posts[intval($post['post_id'])] = (int) $post_id;

			if ( ! isset( $post['terms'] ) )
				$post['terms'] = array();

			$post['terms'] = apply_filters( 'wp_import_post_terms', $post['terms'], $post_id, $post );

			// add categories, tags and other terms
			if ( ! empty( $post['terms'] ) ) {
				$terms_to_set = array();
				foreach ( $post['terms'] as $term ) {
					// back compat with WXR 1.0 map 'tag' to 'post_tag'
					$taxonomy = ( 'tag' == $term['domain'] ) ? 'post_tag' : $term['domain'];
					$term_exists = term_exists( $term['slug'], $taxonomy );
					$term_id = is_array( $term_exists ) ? $term_exists['term_id'] : $term_exists;
					if ( ! $term_id ) {
						$t = wp_insert_term( $term['name'], $taxonomy, array( 'slug' => $term['slug'] ) );
						if ( ! is_wp_error( $t ) ) {
							$term_id = $t['term_id'];
							do_action( 'wp_import_insert_term', $t, $term, $post_id, $post );
						} else {
							printf( __( 'Failed to import %s %s', 'wordpress-importer' ), esc_html($taxonomy), esc_html($term['name']) );
							if ( defined('IMPORT_DEBUG') && IMPORT_DEBUG )
								echo ': ' . $t->get_error_message();
							echo '<br />';
							do_action( 'wp_import_insert_term_failed', $t, $term, $post_id, $post );
							continue;
						}
					}
					$terms_to_set[$taxonomy][] = intval( $term_id );
				}

				foreach ( $terms_to_set as $tax => $ids ) {
					$tt_ids = wp_set_post_terms( $post_id, $ids, $tax );
					do_action( 'wp_import_set_post_terms', $tt_ids, $ids, $tax, $post_id, $post );
				}
				unset( $post['terms'], $terms_to_set );
			}

			if ( ! isset( $post['comments'] ) )
				$post['comments'] = array();

			$post['comments'] = apply_filters( 'wp_import_post_comments', $post['comments'], $post_id, $post );

			// add/update comments
			if ( ! empty( $post['comments'] ) ) {
				$num_comments = 0;
				$inserted_comments = array();
				foreach ( $post['comments'] as $comment ) {
					$comment_id	= $comment['comment_id'];
					$newcomments[$comment_id]['comment_post_ID']      = $comment_post_ID;
					$newcomments[$comment_id]['comment_author']       = $comment['comment_author'];
					$newcomments[$comment_id]['comment_author_email'] = $comment['comment_author_email'];
					$newcomments[$comment_id]['comment_author_IP']    = $comment['comment_author_IP'];
					$newcomments[$comment_id]['comment_author_url']   = $comment['comment_author_url'];
					$newcomments[$comment_id]['comment_date']         = $comment['comment_date'];
					$newcomments[$comment_id]['comment_date_gmt']     = $comment['comment_date_gmt'];
					$newcomments[$comment_id]['comment_content']      = $comment['comment_content'];
					$newcomments[$comment_id]['comment_approved']     = $comment['comment_approved'];
					$newcomments[$comment_id]['comment_type']         = $comment['comment_type'];
					$newcomments[$comment_id]['comment_parent'] 	  = $comment['comment_parent'];
					$newcomments[$comment_id]['commentmeta']          = isset( $comment['commentmeta'] ) ? $comment['commentmeta'] : array();
					if ( isset( $this->processed_authors[$comment['comment_user_id']] ) )
						$newcomments[$comment_id]['user_id'] = $this->processed_authors[$comment['comment_user_id']];
				}
				ksort( $newcomments );

				foreach ( $newcomments as $key => $comment ) {
					// if this is a new post we can skip the comment_exists() check
					if ( ! $post_exists || ! comment_exists( $comment['comment_author'], $comment['comment_date'] ) ) {
						if ( isset( $inserted_comments[$comment['comment_parent']] ) )
							$comment['comment_parent'] = $inserted_comments[$comment['comment_parent']];
						$comment = wp_filter_comment( $comment );
						$inserted_comments[$key] = wp_insert_comment( $comment );
						do_action( 'wp_import_insert_comment', $inserted_comments[$key], $comment, $comment_post_ID, $post );

						foreach( $comment['commentmeta'] as $meta ) {
							$value = maybe_unserialize( $meta['value'] );
							add_comment_meta( $inserted_comments[$key], $meta['key'], $value );
						}

						$num_comments++;
					}
				}
				unset( $newcomments, $inserted_comments, $post['comments'] );
			}

			if ( ! isset( $post['postmeta'] ) )
				$post['postmeta'] = array();

			$post['postmeta'] = apply_filters( 'wp_import_post_meta', $post['postmeta'], $post_id, $post );

			// add/update post meta
			if ( ! empty( $post['postmeta'] ) ) {
				foreach ( $post['postmeta'] as $meta ) {
					$key = apply_filters( 'import_post_meta_key', $meta['key'], $post_id, $post );
					$value = false;

					if ( '_edit_last' == $key ) {
						if ( isset( $this->processed_authors[intval($meta['value'])] ) )
							$value = $this->processed_authors[intval($meta['value'])];
						else
							$key = false;
					}

					if ( $key ) {
						// export gets meta straight from the DB so could have a serialized string
						if ( ! $value )
							$value = maybe_unserialize( $meta['value'] );
						if ( empty( $value ) )
							$value = maybe_unserialize( str_replace( array("\r\n", "\r", "\n"), "\r\n", $meta['value'] ) );
						if ( empty( $value ) )
							$value = maybe_unserialize(
								preg_replace( // deprecated in 5.5.0
									'!s:(\d+):"(.*?)";!se',
									"'s:'.strlen('$2').':\"$2\";'",
									$meta['value']
								)
							);

                        // FIX IMAGES URL'S. When you perform the export, some images will have the zn-content path
                        $value = $this->zn_replace_image_links_with_local( $value );
						add_post_meta( $post_id, $key, $value );
						do_action( 'import_post_meta', $post_id, $key, $value );

						// if the post has a featured image, take note of this in case of remap
						if ( '_thumbnail_id' == $key )
							$this->featured_images[$post_id] = (int) $value;
					}
				}
			}
			
		}

		unset( $this->posts );
	}

    function zn_replace_image_links_with_local( $zarray ) {
        $new_array = array ();

        if ( !is_array ( $zarray ) ) {
            return $this->get_proper_image_url( $zarray );
        }
        else {

            foreach ($zarray as $key => $val ) {

				// This is possible to be an image. Try to replace the URL
                if ( !is_array( $val ) ) {
                    $new_array[$key] = $this->get_proper_image_url( $val );
                }
                else {
                    $new_array[$key] = $this->zn_replace_image_links_with_local( $val );
                }
            }

        }
        return $new_array;
    }

	function get_proper_image_url( $content ){
		$regex = "/(http|https|ftp|ftps)\:\/\/[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(\/\S*)?/";
		return preg_replace_callback($regex, function($url) {
			return $this->replace_urls($url[0]);
		}, $content);
	}

	function replace_urls( $url ){

		$upload_dir = wp_upload_dir();
		$file_path = explode( 'zn-content/uploads/', $url );

		if( !empty( $file_path[1] ) ){
			return trailingslashit( $upload_dir['baseurl'] ) . $file_path[1];
		}
		else{
			return $url;
		}

	}

	function process_templates( $post, $template_post_id ){

		if ( ! empty( $post['postmeta'] ) ) {
			$post_id = $template_post_id;
			foreach ( $post['postmeta'] as $meta ) {
				$key = $meta['key'];
				$value = false;

				if ( $key ) {
					// export gets meta straight from the DB so could have a serialized string
					if ( ! $value )
						$value = maybe_unserialize( $meta['value'] );
					if ( empty( $value ) )
						$value = maybe_unserialize( str_replace( array("\r\n", "\r", "\n"), "\r\n", $meta['value'] ) );
					if ( empty( $value ) )
						$value = maybe_unserialize(
							preg_replace( // deprecated in 5.5.0
								'!s:(\d+):"(.*?)";!se',
								"'s:'.strlen('$2').':\"$2\";'",
								$meta['value']
							)
						);

                    $value = $this->zn_replace_image_links_with_local( $value );
					add_post_meta( $post_id, $key, $value );

				}
			}
		}
	}


	/**
	 * Attempt to create a new menu item from import data
	 *
	 * Fails for draft, orphaned menu items and those without an associated nav_menu
	 * or an invalid nav_menu term. If the post type or term object which the menu item
	 * represents doesn't exist then the menu item will not be imported (waits until the
	 * end of the import to retry again before discarding).
	 *
	 * @param array $item Menu item details from WXR file
	 */
	function process_menu_item( $item ) {
		// skip draft, orphaned menu items
		if ( 'draft' == $item['status'] )
			return;

		$menu_slug = false;
		if ( isset($item['terms']) ) {
			// loop through terms, assume first nav_menu term is correct menu
			foreach ( $item['terms'] as $term ) {
				if ( 'nav_menu' == $term['domain'] ) {
					$menu_slug = $term['slug'];
					break;
				}
			}
		}

		// no nav_menu term associated with this menu item
		if ( ! $menu_slug ) {
			_e( 'Menu item skipped due to missing menu slug', 'wordpress-importer' );
			echo '<br />';
			return;
		}

		$menu_id = term_exists( $menu_slug, 'nav_menu' );
		if ( ! $menu_id ) {
			printf( __( 'Menu item skipped due to invalid menu slug: %s', 'wordpress-importer' ), esc_html( $menu_slug ) );
			echo '<br />';
			return;
		} else {
			$menu_id = is_array( $menu_id ) ? $menu_id['term_id'] : $menu_id;
		}

		foreach ( $item['postmeta'] as $meta )
			$$meta['key'] = $meta['value'];

		if ( 'taxonomy' == $_menu_item_type && isset( $this->processed_terms[intval($_menu_item_object_id)] ) ) {
			$_menu_item_object_id = $this->processed_terms[intval($_menu_item_object_id)];
		} else if ( 'post_type' == $_menu_item_type && isset( $this->processed_posts[intval($_menu_item_object_id)] ) ) {
			$_menu_item_object_id = $this->processed_posts[intval($_menu_item_object_id)];
		} else if ( 'custom' != $_menu_item_type ) {
			// associated object is missing or not imported yet, we'll retry later
			$this->missing_menu_items[] = $item;
			return;
		}

		if ( isset( $this->processed_menu_items[intval($_menu_item_menu_item_parent)] ) ) {
			$_menu_item_menu_item_parent = $this->processed_menu_items[intval($_menu_item_menu_item_parent)];
		} else if ( $_menu_item_menu_item_parent ) {
			$this->menu_item_orphans[intval($item['post_id'])] = (int) $_menu_item_menu_item_parent;
			$_menu_item_menu_item_parent = 0;
		}

		// wp_update_nav_menu_item expects CSS classes as a space separated string
		$_menu_item_classes = maybe_unserialize( $_menu_item_classes );
		if ( is_array( $_menu_item_classes ) )
			$_menu_item_classes = implode( ' ', $_menu_item_classes );

		$args = array(
			'menu-item-object-id' => $_menu_item_object_id,
			'menu-item-object' => $_menu_item_object,
			'menu-item-parent-id' => $_menu_item_menu_item_parent,
			'menu-item-position' => intval( $item['menu_order'] ),
			'menu-item-type' => $_menu_item_type,
			'menu-item-title' => $item['post_title'],
			'menu-item-url' => $_menu_item_url,
			'menu-item-description' => $item['post_content'],
			'menu-item-attr-title' => $item['post_excerpt'],
			'menu-item-target' => $_menu_item_target,
			'menu-item-classes' => $_menu_item_classes,
			'menu-item-xfn' => $_menu_item_xfn,
			'menu-item-status' => $item['status']
		);

		$id = wp_update_nav_menu_item( $menu_id, 0, $args );
		if ( $id && ! is_wp_error( $id ) ) {
			$this->processed_menu_items[intval($item['post_id'])] = (int) $id;

			// If the theme supports mega - menu
//			print_z( ZN()->theme_data['supports']['megamenu'] );
			if ( !empty( ZN()->theme_data['supports']['megamenu'] ) ) {
				
				if ( !empty( $_menu_item_zn_mega_menu_enable ) ) { update_post_meta( $id, '_menu_item_zn_mega_menu_enable', $_menu_item_zn_mega_menu_enable ); }
				if ( !empty( $_menu_item_zn_mega_menu_headers ) ) { update_post_meta( $id, '_menu_item_zn_mega_menu_headers', $_menu_item_zn_mega_menu_headers ); }
				if ( !empty( $_menu_item_zn_mega_menu_label ) ) { update_post_meta( $id, '_menu_item_zn_mega_menu_label', $_menu_item_zn_mega_menu_label ); }

			}
		}
	}

	/**
	 * If fetching attachments is enabled then attempt to create a new attachment
	 *
	 * @param array $post Attachment post details from WXR
	 * @param string $url URL to fetch attachment from
	 * @return int|WP_Error Post ID on success, WP_Error otherwise
	 */
	function process_attachment( $post, $url ) {
		if ( ! $this->fetch_attachments )
			return new WP_Error( 'attachment_processing_error',
				__( 'Fetching attachments is not enabled', 'wordpress-importer' ) );

		// if the URL is absolute, but does not contain address, then upload it assuming base_site_url
		if ( preg_match( '|^/[\w\W]+$|', $url ) )
			$url = rtrim( $this->base_url, '/' ) . $url;

		$upload = $this->fetch_remote_file( $url, $post );
		if ( is_wp_error( $upload ) )
			return $upload;

		if ( $info = wp_check_filetype( $upload['file'] ) )
			$post['post_mime_type'] = $info['type'];
		else
			return new WP_Error( 'attachment_processing_error', __('Invalid file type', 'wordpress-importer') );

		$post['guid'] = $upload['url'];

		// as per wp-admin/includes/upload.php
		$post_id = wp_insert_attachment( $post, $upload['file'] );
		wp_update_attachment_metadata( $post_id, wp_generate_attachment_metadata( $post_id, $upload['file'] ) );

		// remap resized image URLs, works by stripping the extension and remapping the URL stub.
		if ( preg_match( '!^image/!', $info['type'] ) ) {
			$parts = pathinfo( $url );
			$name = basename( $parts['basename'], ".{$parts['extension']}" ); // PATHINFO_FILENAME in PHP 5.2

			$parts_new = pathinfo( $upload['url'] );
			$name_new = basename( $parts_new['basename'], ".{$parts_new['extension']}" );

			$this->url_remap[$parts['dirname'] . '/' . $name] = $parts_new['dirname'] . '/' . $name_new;
		}

		return $post_id;
	}

	/**
	 * Attempt to download a remote file attachment
	 *
	 * @param string $url URL of item to fetch
	 * @param array $post Attachment details
	 * @return array|WP_Error Local file location details on success, WP_Error otherwise
	 */
	function fetch_remote_file( $url, $post ) {
		// extract the file name and extension from the url
		$file_name = basename( $url );


		// get placeholder file in the upload dir with a unique, sanitized filename
		$upload = wp_upload_bits( $file_name, 0, '', $post['upload_date'] );
		if ( $upload['error'] )
			return new WP_Error( 'upload_dir_error', $upload['error'] );

		// fetch the remote url and write it to the placeholder file
		$headers = wp_get_http( $url, $upload['file'] );

		// request failed
		if ( ! $headers ) {
			@unlink( $upload['file'] );
			return new WP_Error( 'import_file_error', __('Remote server did not respond', 'wordpress-importer') );
		}

		// make sure the fetch was successful
		if ( $headers['response'] != '200' ) {
			@unlink( $upload['file'] );
			return new WP_Error( 'import_file_error', sprintf( __('Remote server returned error response %1$d %2$s', 'wordpress-importer'), esc_html($headers['response']), get_status_header_desc($headers['response']) ) );
		}

		$filesize = filesize( $upload['file'] );

		if ( $headers['content-encoding'] != 'gzip' && isset( $headers['content-length'] ) && $filesize != $headers['content-length'] ) {
			@unlink( $upload['file'] );
			return new WP_Error( 'import_file_error', __('Remote file is incorrect size', 'wordpress-importer') );
		}

		if ( 0 == $filesize ) {
			@unlink( $upload['file'] );
			return new WP_Error( 'import_file_error', __('Zero size file downloaded', 'wordpress-importer') );
		}

		$max_size = (int) $this->max_attachment_size();
		if ( ! empty( $max_size ) && $filesize > $max_size ) {
			@unlink( $upload['file'] );
			return new WP_Error( 'import_file_error', sprintf(__('Remote file is too large, limit is %s', 'wordpress-importer'), size_format($max_size) ) );
		}

		// keep track of the old and new urls so we can substitute them later
		$this->url_remap[$url] = $upload['url'];
		$this->url_remap[$post['guid']] = $upload['url']; // r13735, really needed?
		// keep track of the destination if the remote url is redirected somewhere else
		if ( isset($headers['x-final-location']) && $headers['x-final-location'] != $url )
			$this->url_remap[$headers['x-final-location']] = $upload['url'];

		return $upload;
	}

	/**
	 * Attempt to associate posts and menu items with previously missing parents
	 *
	 * An imported post's parent may not have been imported when it was first created
	 * so try again. Similarly for child menu items and menu items which were missing
	 * the object (e.g. post) they represent in the menu
	 */
	function backfill_parents() {
		global $wpdb;

		// find parents for post orphans
		foreach ( $this->post_orphans as $child_id => $parent_id ) {
			$local_child_id = $local_parent_id = false;
			if ( isset( $this->processed_posts[$child_id] ) )
				$local_child_id = $this->processed_posts[$child_id];
			if ( isset( $this->processed_posts[$parent_id] ) )
				$local_parent_id = $this->processed_posts[$parent_id];

			if ( $local_child_id && $local_parent_id )
				$wpdb->update( $wpdb->posts, array( 'post_parent' => $local_parent_id ), array( 'ID' => $local_child_id ), '%d', '%d' );
		}

		// all other posts/terms are imported, retry menu items with missing associated object
		$missing_menu_items = $this->missing_menu_items;
		foreach ( $missing_menu_items as $item )
			$this->process_menu_item( $item );

		// find parents for menu item orphans
		foreach ( $this->menu_item_orphans as $child_id => $parent_id ) {
			$local_child_id = $local_parent_id = 0;
			if ( isset( $this->processed_menu_items[$child_id] ) )
				$local_child_id = $this->processed_menu_items[$child_id];
			if ( isset( $this->processed_menu_items[$parent_id] ) )
				$local_parent_id = $this->processed_menu_items[$parent_id];

			if ( $local_child_id && $local_parent_id )
				update_post_meta( $local_child_id, '_menu_item_menu_item_parent', (int) $local_parent_id );
		}
	}

	/**
	 * Use stored mapping information to update old attachment URLs
	 */
	function backfill_attachment_urls() {
		global $wpdb;
		// make sure we do the longest urls first, in case one is a substring of another
		uksort( $this->url_remap, array(&$this, 'cmpr_strlen') );

		foreach ( $this->url_remap as $from_url => $to_url ) {
			// remap urls in post_content
			$wpdb->query( $wpdb->prepare("UPDATE {$wpdb->posts} SET post_content = REPLACE(post_content, %s, %s)", $from_url, $to_url) );
			// remap enclosure urls
			$result = $wpdb->query( $wpdb->prepare("UPDATE {$wpdb->postmeta} SET meta_value = REPLACE(meta_value, %s, %s) WHERE meta_key='enclosure'", $from_url, $to_url) );
		}
	}

	/**
	 * Update _thumbnail_id meta to new, imported attachment IDs
	 */
	function remap_featured_images() {
		// cycle through posts that have a featured image
		foreach ( $this->featured_images as $post_id => $value ) {
			if ( isset( $this->processed_posts[$value] ) ) {
				$new_id = $this->processed_posts[$value];
				// only update if there's a difference
				if ( $new_id != $value )
					update_post_meta( $post_id, '_thumbnail_id', $new_id );
			}
		}
	}

	/**
	 * Parse a WXR file
	 *
	 * @param string $file Path to WXR file for parsing
	 * @return array Information gathered from the WXR file
	 */
	function parse( $file ) {
		$parser = new WXR_Parser();
		return $parser->parse( $file );
	}

	/**
	 * Decide if the given meta key maps to information we will want to import
	 *
	 * @param string $key The meta key to check
	 * @return string|bool The key if we do want to import, false if not
	 */
	function is_valid_meta_key( $key ) {
		// skip attachment metadata since we'll regenerate it from scratch
		// skip _edit_lock as not relevant for import
		if ( in_array( $key, array( '_wp_attached_file', '_wp_attachment_metadata', '_edit_lock' ) ) )
			return false;
		return $key;
	}

	/**
	 * Decide whether or not the importer is allowed to create users.
	 * Default is true, can be filtered via import_allow_create_users
	 *
	 * @return bool True if creating users is allowed
	 */
	function allow_create_users() {
		return apply_filters( 'import_allow_create_users', true );
	}

	/**
	 * Decide whether or not the importer should attempt to download attachment files.
	 * Default is true, can be filtered via import_allow_fetch_attachments. The choice
	 * made at the import options screen must also be true, false here hides that checkbox.
	 *
	 * @return bool True if downloading attachments is allowed
	 */
	function allow_fetch_attachments() {
		return apply_filters( 'import_allow_fetch_attachments', true );
	}

	/**
	 * Decide what the maximum file size for downloaded attachments is.
	 * Default is 0 (unlimited), can be filtered via import_attachment_size_limit
	 *
	 * @return int Maximum attachment file size to import
	 */
	function max_attachment_size() {
		return apply_filters( 'import_attachment_size_limit', 0 );
	}

	/**
	 * Added to http_request_timeout filter to force timeout at 60 seconds during import
	 * @return int 60
	 */
	function bump_request_timeout($val) {
		return 60;
	}

	// return the difference in length between two strings
	function cmpr_strlen( $a, $b ) {
		return strlen($b) - strlen($a);
	}
}

} // class_exists( 'WP_Importer' )
