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wp-content/plugins/one-click-demo-import/inc/Importer.php

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+<?php
+/**
+ * Class for declaring the content importer used in the One Click Demo Import plugin
+ *
+ * @package ocdi
+ */
+
+namespace OCDI;
+
+class Importer {
+	/**
+	 * The importer class object used for importing content.
+	 *
+	 * @var object
+	 */
+	private $importer;
+
+	/**
+	 * Time in milliseconds, marking the beginning of the import.
+	 *
+	 * @var float
+	 */
+	private $microtime;
+
+	/**
+	 * The instance of the OCDI\Logger class.
+	 *
+	 * @var object
+	 */
+	public $logger;
+
+	/**
+	 * The instance of the One Click Demo Import class.
+	 *
+	 * @var object
+	 */
+	private $ocdi;
+
+	/**
+	 * Constructor method.
+	 *
+	 * @param array  $importer_options Importer options.
+	 * @param object $logger           Logger object used in the importer.
+	 */
+	public function __construct( $importer_options = array(), $logger = null ) {
+		// Include files that are needed for WordPress Importer v2.
+		$this->include_required_files();
+
+		// Set the WordPress Importer v2 as the importer used in this plugin.
+		// More: https://github.com/humanmade/WordPress-Importer.
+		$this->importer = new WXRImporter( $importer_options );
+
+		// Set logger to the importer.
+		$this->logger = $logger;
+		if ( ! empty( $this->logger ) ) {
+			$this->set_logger( $this->logger );
+		}
+
+		// Get the OCDI (main plugin class) instance.
+		$this->ocdi = OneClickDemoImport::get_instance();
+	}
+
+
+	/**
+	 * Include required files.
+	 */
+	private function include_required_files() {
+		if ( ! class_exists( '\WP_Importer' ) ) {
+			require ABSPATH . '/wp-admin/includes/class-wp-importer.php';
+		}
+	}
+
+
+	/**
+	 * Imports content from a WordPress export file.
+	 *
+	 * @param string $data_file path to xml file, file with WordPress export data.
+	 */
+	public function import( $data_file ) {
+		$this->importer->import( $data_file );
+	}
+
+
+	/**
+	 * Set the logger used in the import
+	 *
+	 * @param object $logger logger instance.
+	 */
+	public function set_logger( $logger ) {
+		$this->importer->set_logger( $logger );
+	}
+
+
+	/**
+	 * Get all protected variables from the WXR_Importer needed for continuing the import.
+	 */
+	public function get_importer_data() {
+		return $this->importer->get_importer_data();
+	}
+
+
+	/**
+	 * Sets all protected variables from the WXR_Importer needed for continuing the import.
+	 *
+	 * @param array $data with set variables.
+	 */
+	public function set_importer_data( $data ) {
+		$this->importer->set_importer_data( $data );
+	}
+
+
+	/**
+	 * Import content from an WP XML file.
+	 *
+	 * @param string $import_file_path Path to the import file.
+	 */
+	public function import_content( $import_file_path ) {
+		$this->microtime = microtime( true );
+
+		// Increase PHP max execution time. Just in case, even though the AJAX calls are only 25 sec long.
+		if ( strpos( ini_get( 'disable_functions' ), 'set_time_limit' ) === false ) {
+			set_time_limit( apply_filters( 'pt-ocdi/set_time_limit_for_demo_data_import', 300 ) );
+		}
+
+		// Disable import of authors.
+		add_filter( 'wxr_importer.pre_process.user', '__return_false' );
+
+		// Check, if we need to send another AJAX request and set the importing author to the current user.
+		add_filter( 'wxr_importer.pre_process.post', array( $this, 'new_ajax_request_maybe' ) );
+
+		// Disables generation of multiple image sizes (thumbnails) in the content import step.
+		if ( ! apply_filters( 'pt-ocdi/regenerate_thumbnails_in_content_import', true ) ) {
+			add_filter( 'intermediate_image_sizes_advanced', '__return_null' );
+		}
+
+		// Import content.
+		if ( ! empty( $import_file_path ) ) {
+			ob_start();
+				$this->import( $import_file_path );
+			$message = ob_get_clean();
+		}
+
+		// Return any error messages for the front page output (errors, critical, alert and emergency level messages only).
+		return $this->logger->error_output;
+	}
+
+
+	/**
+	 * Check if we need to create a new AJAX request, so that server does not timeout.
+	 *
+	 * @param array $data current post data.
+	 * @return array
+	 */
+	public function new_ajax_request_maybe( $data ) {
+		$time = microtime( true ) - $this->microtime;
+
+		// We should make a new ajax call, if the time is right.
+		if ( $time > apply_filters( 'pt-ocdi/time_for_one_ajax_call', 25 ) ) {
+			$response = array(
+				'status'  => 'newAJAX',
+				'message' => 'Time for new AJAX request!: ' . $time,
+			);
+
+			// Add any output to the log file and clear the buffers.
+			$message = ob_get_clean();
+
+			// Add any error messages to the frontend_error_messages variable in OCDI main class.
+			if ( ! empty( $message ) ) {
+				$this->ocdi->append_to_frontend_error_messages( $message );
+			}
+
+			// Add message to log file.
+			$log_added = Helpers::append_to_file(
+				__( 'New AJAX call!' , 'pt-ocdi' ) . PHP_EOL . $message,
+				$this->ocdi->get_log_file_path(),
+				''
+			);
+
+			// Set the current importer stat, so it can be continued on the next AJAX call.
+			$this->set_current_importer_data();
+
+			// Send the request for a new AJAX call.
+			wp_send_json( $response );
+		}
+
+		// Set importing author to the current user.
+		// Fixes the [WARNING] Could not find the author for ... log warning messages.
+		$current_user_obj    = wp_get_current_user();
+		$data['post_author'] = $current_user_obj->user_login;
+
+		return $data;
+	}
+
+
+	/**
+	 * Set current state of the content importer, so we can continue the import with new AJAX request.
+	 */
+	private function set_current_importer_data() {
+		$data = array_merge( $this->ocdi->get_current_importer_data(), $this->get_importer_data() );
+
+		Helpers::set_ocdi_import_data_transient( $data );
+	}
+}