/wp-content/themes/aurum/inc/lib/laborator/laborator-demo-content-importer/widget-importer-exporter-new/includes/import.php

<?php

/**

 * Import Functions

 *

 * @package    Widget_Importer_Exporter

 * @subpackage Functions

 * @copyright  Copyright (c) 2013 - 2015, DreamDolphin Media, LLC

 * @link       https://github.com/stevengliebe/widget-importer-exporter

 * @license    http://www.gnu.org/licenses/old-licenses/gpl-2.0.html

 * @since      0.3

 */



// No direct access

if ( ! defined( 'ABSPATH' ) ) exit;



/**

 * Upload import file

 *

 * @since 0.3

 */

function wie_upload_import_file() {



	// Check nonce for security since form was posted

	if ( ! empty( $_POST ) && ! empty( $_FILES['wie_import_file'] ) && check_admin_referer( 'wie_import', 'wie_import_nonce' ) ) { // check_admin_referer prints fail page and dies



		// Uploaded file

		$uploaded_file = $_FILES['wie_import_file'];



		// Check file type

		// This will also fire if no file uploaded

		$wp_filetype = wp_check_filetype_and_ext( $uploaded_file['tmp_name'], $uploaded_file['name'], false );

		if ( 'wie' != $wp_filetype['ext'] && ! wp_match_mime_types( 'wie', $wp_filetype['type'] ) ) {

			wp_die(

				__( 'You must upload a <b>.wie</b> file generated by this plugin.', 'widget-importer-exporter' ),

			'',

				array( 'back_link' => true )

			);

		}



		// Check and move file to uploads dir, get file data

		// Will show die with WP errors if necessary (file too large, quota exceeded, etc.)

		$overrides = array( 'test_form' => false );

		$file_data = wp_handle_upload( $uploaded_file, $overrides );

		if ( isset( $file_data['error'] ) ) {

			wp_die(

				$file_data['error'],

				'',

				array( 'back_link' => true )

			);

		}



		// Process import file

		wie_process_import_file( $file_data['file'] );



	}



}



add_action( 'load-tools_page_widget-importer-exporter', 'wie_upload_import_file' );



/**

 * Process import file

 *

 * This parses a file and triggers importation of its widgets.

 *

 * @since 0.3

 * @param string $file Path to .wie file uploaded

 * @global string $wie_import_results

 */

function wie_process_import_file( $file ) {



	global $wie_import_results;



	// File exists?

	if ( ! file_exists( $file ) ) {

		wp_die(

			__( 'Import file could not be found. Please try again.', 'widget-importer-exporter' ),

			'',

			array( 'back_link' => true )

		);

	}



	// Get file contents and decode

	$data = file_get_contents( $file );

	$data = json_decode( $data );



	// Delete import file

	//unlink( $file );



	// Import the widget data

	// Make results available for display on import/export page

	$wie_import_results = wie_import_data( $data );



}



/**

 * Import widget JSON data

 *

 * @since 0.4

 * @global array $wp_registered_sidebars

 * @param object $data JSON widget data from .wie file

 * @return array Results array

 */

function wie_import_data( $data ) {



	global $wp_registered_sidebars;



	// Have valid data?

	// If no data or could not decode

	if ( empty( $data ) || ! is_object( $data ) ) {

		wp_die(

			__( 'Import data could not be read. Please try a different file.', 'widget-importer-exporter' ),

			'',

			array( 'back_link' => true )

		);

	}



	// Hook before import

	do_action( 'wie_before_import' );

	$data = apply_filters( 'wie_import_data', $data );



	// Get all available widgets site supports

	$available_widgets = wie_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'] );

	}



	// Begin results

	$results = array();



	// Loop import data's sidebars

	foreach ( $data as $sidebar_id => $widgets ) {



		// Skip inactive widgets

		// (should not be in export file)

		if ( 'wp_inactive_widgets' == $sidebar_id ) {

			continue;

		}



		// 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;

			$sidebar_message_type = 'success';

			$sidebar_message = '';

		} else {

			$sidebar_available = false;

			$use_sidebar_id = 'wp_inactive_widgets'; // add to inactive if sidebar does not exist in theme

			$sidebar_message_type = 'error';

			$sidebar_message = __( 'Sidebar does not exist in theme (using Inactive)', 'widget-importer-exporter' );

		}



		// Result for sidebar

		$results[$sidebar_id]['name'] = ! empty( $wp_registered_sidebars[$sidebar_id]['name'] ) ? $wp_registered_sidebars[$sidebar_id]['name'] : $sidebar_id; // sidebar name if theme supports it; otherwise ID

		$results[$sidebar_id]['message_type'] = $sidebar_message_type;

		$results[$sidebar_id]['message'] = $sidebar_message;

		$results[$sidebar_id]['widgets'] = array();



		// 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;

				$widget_message_type = 'error';

				$widget_message = __( 'Site does not support widget', 'widget-importer-exporter' ); // explain why widget not imported

			}



			// Filter to modify settings object before conversion to array and import

			// Leave this filter here for backwards compatibility with manipulating objects (before conversion to array below)

			// Ideally the newer wie_widget_settings_array below will be used instead of this

			$widget = apply_filters( 'wie_widget_settings', $widget ); // object



			// Convert multidimensional objects to multidimensional arrays

			// Some plugins like Jetpack Widget Visibility store settings as multidimensional arrays

			// Without this, they are imported as objects and cause fatal error on Widgets page

			// If this creates problems for plugins that do actually intend settings in objects then may need to consider other approach: https://wordpress.org/support/topic/problem-with-array-of-arrays

			// It is probably much more likely that arrays are used than objects, however

			$widget = json_decode( json_encode( $widget ), true );



			// Filter to modify settings array

			// This is preferred over the older wie_widget_settings filter above

			// Do before identical check because changes may make it identical to end result (such as URL replacements)

			$widget = apply_filters( 'wie_widget_settings_array', $widget );



			// 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;

						$widget_message_type = 'warning';

						$widget_message = __( 'Widget already exists', 'widget-importer-exporter' ); // explain why widget not imported



						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[] = $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



				// After widget import action

				$after_widget_import = array(

					'sidebar'           => $use_sidebar_id,

					'sidebar_old'       => $sidebar_id,

					'widget'            => $widget,

					'widget_type'       => $id_base,

					'widget_id'         => $new_instance_id,

					'widget_id_old'     => $widget_instance_id,

					'widget_id_num'     => $new_instance_id_number,

					'widget_id_num_old' => $instance_id_number

				);

				do_action( 'wie_after_widget_import', $after_widget_import );



				// Success message

				if ( $sidebar_available ) {

					$widget_message_type = 'success';

					$widget_message = __( 'Imported', 'widget-importer-exporter' );

				} else {

					$widget_message_type = 'warning';

					$widget_message = __( 'Imported to Inactive', 'widget-importer-exporter' );

				}



			}



			// Result for widget instance

			$results[$sidebar_id]['widgets'][$widget_instance_id]['name'] = isset( $available_widgets[$id_base]['name'] ) ? $available_widgets[$id_base]['name'] : $id_base; // widget name or ID if name not available (not supported by site)

			$results[$sidebar_id]['widgets'][$widget_instance_id]['title'] = ! empty( $widget['title'] ) ? $widget['title'] : __( 'No Title', 'widget-importer-exporter' ); // show "No Title" if widget instance is untitled

			$results[$sidebar_id]['widgets'][$widget_instance_id]['message_type'] = $widget_message_type;

			$results[$sidebar_id]['widgets'][$widget_instance_id]['message'] = $widget_message;



		}



	}



	// Hook after import

	do_action( 'wie_after_import' );



	// Return results

	return apply_filters( 'wie_import_results', $results );



}