woothemes/woocommerce

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includes/admin/class-wc-admin-importers.php

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<?php
/**
 * Init WooCommerce data importers.
 *
 * @package WooCommerce\Admin
 */

use Automattic\Jetpack\Constants;

defined( 'ABSPATH' ) || exit;

/**
 * WC_Admin_Importers Class.
 */
class WC_Admin_Importers {

    /**
     * Array of importer IDs.
     *
     * @var string[]
     */
    protected $importers = array();

    /**
     * Constructor.
     */
    public function __construct() {
        if ( ! $this->import_allowed() ) {
            return;
        }

        add_action( 'admin_menu', array( $this, 'add_to_menus' ) );
        add_action( 'admin_init', array( $this, 'register_importers' ) );
        add_action( 'admin_head', array( $this, 'hide_from_menus' ) );
        add_action( 'admin_enqueue_scripts', array( $this, 'admin_scripts' ) );
        add_action( 'wp_ajax_woocommerce_do_ajax_product_import', array( $this, 'do_ajax_product_import' ) );

        // Register WooCommerce importers.
        $this->importers['product_importer'] = array(
            'menu'       => 'edit.php?post_type=product',
            'name'       => __( 'Product Import', 'woocommerce' ),
            'capability' => 'import',
            'callback'   => array( $this, 'product_importer' ),
        );
    }

    /**
     * Return true if WooCommerce imports are allowed for current user, false otherwise.
     *
     * @return bool Whether current user can perform imports.
     */
    protected function import_allowed() {
        return current_user_can( 'edit_products' ) && current_user_can( 'import' );
    }

    /**
     * Add menu items for our custom importers.
     */
    public function add_to_menus() {
        foreach ( $this->importers as $id => $importer ) {
            add_submenu_page( $importer['menu'], $importer['name'], $importer['name'], $importer['capability'], $id, $importer['callback'] );
        }
    }

    /**
     * Hide menu items from view so the pages exist, but the menu items do not.
     */
    public function hide_from_menus() {
        global $submenu;

        foreach ( $this->importers as $id => $importer ) {
            if ( isset( $submenu[ $importer['menu'] ] ) ) {
                foreach ( $submenu[ $importer['menu'] ] as $key => $menu ) {
                    if ( $id === $menu[2] ) {
                        unset( $submenu[ $importer['menu'] ][ $key ] );
                    }
                }
            }
        }
    }

    /**
     * Register importer scripts.
     */
    public function admin_scripts() {
        $suffix  = Constants::is_true( 'SCRIPT_DEBUG' ) ? '' : '.min';
        $version = Constants::get_constant( 'WC_VERSION' );
        wp_register_script( 'wc-product-import', WC()->plugin_url() . '/assets/js/admin/wc-product-import' . $suffix . '.js', array( 'jquery' ), $version, true );
    }

    /**
     * The product importer.
     *
     * This has a custom screen - the Tools > Import item is a placeholder.
     * If we're on that screen, redirect to the custom one.
     */
    public function product_importer() {
        if ( Constants::is_defined( 'WP_LOAD_IMPORTERS' ) ) {
            wp_safe_redirect( admin_url( 'edit.php?post_type=product&page=product_importer' ) );
            exit;
        }

        include_once WC_ABSPATH . 'includes/import/class-wc-product-csv-importer.php';
        include_once WC_ABSPATH . 'includes/admin/importers/class-wc-product-csv-importer-controller.php';

        $importer = new WC_Product_CSV_Importer_Controller();
        $importer->dispatch();
    }

    /**
     * Register WordPress based importers.
     */
    public function register_importers() {
        if ( Constants::is_defined( 'WP_LOAD_IMPORTERS' ) ) {
            add_action( 'import_start', array( $this, 'post_importer_compatibility' ) );
            register_importer( 'woocommerce_product_csv', __( 'WooCommerce products (CSV)', 'woocommerce' ), __( 'Import <strong>products</strong> to your store via a csv file.', 'woocommerce' ), array( $this, 'product_importer' ) );
            register_importer( 'woocommerce_tax_rate_csv', __( 'WooCommerce tax rates (CSV)', 'woocommerce' ), __( 'Import <strong>tax rates</strong> to your store via a csv file.', 'woocommerce' ), array( $this, 'tax_rates_importer' ) );
        }
    }

    /**
     * The tax rate importer which extends WP_Importer.
     */
    public function tax_rates_importer() {
        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;
            }
        }

        require dirname( __FILE__ ) . '/importers/class-wc-tax-rate-importer.php';

        $importer = new WC_Tax_Rate_Importer();
        $importer->dispatch();
    }

    /**
     * When running the WP XML importer, ensure attributes exist.
     *
     * WordPress import should work - however, it fails to import custom product attribute taxonomies.
     * This code grabs the file before it is imported and ensures the taxonomies are created.
     */
    public function post_importer_compatibility() {
        global $wpdb;

        if ( empty( $_POST['import_id'] ) || ! class_exists( 'WXR_Parser' ) ) { // PHPCS: input var ok, CSRF ok.
            return;
        }

        $id          = absint( $_POST['import_id'] ); // PHPCS: input var ok.
        $file        = get_attached_file( $id );
        $parser      = new WXR_Parser();
        $import_data = $parser->parse( $file );

        if ( isset( $import_data['posts'] ) && ! empty( $import_data['posts'] ) ) {
            foreach ( $import_data['posts'] as $post ) {
                if ( 'product' === $post['post_type'] && ! empty( $post['terms'] ) ) {
                    foreach ( $post['terms'] as $term ) {
                        if ( strstr( $term['domain'], 'pa_' ) ) {
                            if ( ! taxonomy_exists( $term['domain'] ) ) {
                                $attribute_name = wc_attribute_taxonomy_slug( $term['domain'] );

                                // Create the taxonomy.
                                if ( ! in_array( $attribute_name, wc_get_attribute_taxonomies(), true ) ) {
                                    wc_create_attribute(
                                        array(
                                            'name'         => $attribute_name,
                                            'slug'         => $attribute_name,
                                            'type'         => 'select',
                                            'order_by'     => 'menu_order',
                                            'has_archives' => false,
                                        )
                                    );
                                }

                                // Register the taxonomy now so that the import works!
                                register_taxonomy(
                                    $term['domain'],
                                    apply_filters( 'woocommerce_taxonomy_objects_' . $term['domain'], array( 'product' ) ),
                                    apply_filters(
                                        'woocommerce_taxonomy_args_' . $term['domain'],
                                        array(
                                            'hierarchical' => true,
                                            'show_ui'      => false,
                                            'query_var'    => true,
                                            'rewrite'      => false,
                                        )
                                    )
                                );
                            }
                        }
                    }
                }
            }
        }
    }

    /**
     * Ajax callback for importing one batch of products from a CSV.
     */
    public function do_ajax_product_import() {
        global $wpdb;

        check_ajax_referer( 'wc-product-import', 'security' );

        if ( ! $this->import_allowed() || ! isset( $_POST['file'] ) ) { // PHPCS: input var ok.
            wp_send_json_error( array( 'message' => __( 'Insufficient privileges to import products.', 'woocommerce' ) ) );
        }

        include_once WC_ABSPATH . 'includes/admin/importers/class-wc-product-csv-importer-controller.php';
        include_once WC_ABSPATH . 'includes/import/class-wc-product-csv-importer.php';

        $file   = wc_clean( wp_unslash( $_POST['file'] ) ); // PHPCS: input var ok.
        $params = array(
            'delimiter'       => ! empty( $_POST['delimiter'] ) ? wc_clean( wp_unslash( $_POST['delimiter'] ) ) : ',', // PHPCS: input var ok.
            'start_pos'       => isset( $_POST['position'] ) ? absint( $_POST['position'] ) : 0, // PHPCS: input var ok.
            'mapping'         => isset( $_POST['mapping'] ) ? (array) wc_clean( wp_unslash( $_POST['mapping'] ) ) : array(), // PHPCS: input var ok.
            'update_existing' => isset( $_POST['update_existing'] ) ? (bool) $_POST['update_existing'] : false, // PHPCS: input var ok.
            'lines'           => apply_filters( 'woocommerce_product_import_batch_size', 30 ),
            'parse'           => true,
        );

        // Log failures.
        if ( 0 !== $params['start_pos'] ) {
            $error_log = array_filter( (array) get_user_option( 'product_import_error_log' ) );
        } else {
            $error_log = array();
        }

        $importer         = WC_Product_CSV_Importer_Controller::get_importer( $file, $params );
        $results          = $importer->import();
        $percent_complete = $importer->get_percent_complete();
        $error_log        = array_merge( $error_log, $results['failed'], $results['skipped'] );

        update_user_option( get_current_user_id(), 'product_import_error_log', $error_log );

        if ( 100 === $percent_complete ) {
            // @codingStandardsIgnoreStart.
            $wpdb->delete( $wpdb->postmeta, array( 'meta_key' => '_original_id' ) );
            $wpdb->delete( $wpdb->posts, array(
                'post_type'   => 'product',
                'post_status' => 'importing',
            ) );
            $wpdb->delete( $wpdb->posts, array(
                'post_type'   => 'product_variation',
                'post_status' => 'importing',
            ) );
            // @codingStandardsIgnoreEnd.

            // Clean up orphaned data.
            $wpdb->query(
                "
                DELETE {$wpdb->posts}.* FROM {$wpdb->posts}
                LEFT JOIN {$wpdb->posts} wp ON wp.ID = {$wpdb->posts}.post_parent
                WHERE wp.ID IS NULL AND {$wpdb->posts}.post_type = 'product_variation'
            "
            );
            $wpdb->query(
                "
                DELETE {$wpdb->postmeta}.* FROM {$wpdb->postmeta}
                LEFT JOIN {$wpdb->posts} wp ON wp.ID = {$wpdb->postmeta}.post_id
                WHERE wp.ID IS NULL
            "
            );
            // @codingStandardsIgnoreStart.
            $wpdb->query( "
                DELETE tr.* FROM {$wpdb->term_relationships} tr
                LEFT JOIN {$wpdb->posts} wp ON wp.ID = tr.object_id
                LEFT JOIN {$wpdb->term_taxonomy} tt ON tr.term_taxonomy_id = tt.term_taxonomy_id
                WHERE wp.ID IS NULL
                AND tt.taxonomy IN ( '" . implode( "','", array_map( 'esc_sql', get_object_taxonomies( 'product' ) ) ) . "' )
            " );
            // @codingStandardsIgnoreEnd.

            // Send success.
            wp_send_json_success(
                array(
                    'position'   => 'done',
                    'percentage' => 100,
                    'url'        => add_query_arg( array( '_wpnonce' => wp_create_nonce( 'woocommerce-csv-importer' ) ), admin_url( 'edit.php?post_type=product&page=product_importer&step=done' ) ),
                    'imported'   => count( $results['imported'] ),
                    'failed'     => count( $results['failed'] ),
                    'updated'    => count( $results['updated'] ),
                    'skipped'    => count( $results['skipped'] ),
                )
            );
        } else {
            wp_send_json_success(
                array(
                    'position'   => $importer->get_file_position(),
                    'percentage' => $percent_complete,
                    'imported'   => count( $results['imported'] ),
                    'failed'     => count( $results['failed'] ),
                    'updated'    => count( $results['updated'] ),
                    'skipped'    => count( $results['skipped'] ),
                )
            );
        }
    }
}

new WC_Admin_Importers();