# tablepress/2.2.2/libraries/freemius/includes/class-fs-plugin-updater.php

TablePress – Tables in WordPress made easy, version 2.2.2. 1,590 lines.

- Page: https://pluginprobe.com/plugins/tablepress/2.2.2/code/libraries/freemius/includes/class-fs-plugin-updater.php
- Raw: https://pluginprobe.com/plugins/tablepress/2.2.2/raw/libraries/freemius/includes/class-fs-plugin-updater.php
- Modified: 2023-11-02T08:57:02+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/tablepress/2.2.2/code/libraries/freemius/includes/class-fs-plugin-updater.php#L10-L20`.

```php
<?php
	/**
	 * @package     Freemius
	 * @copyright   Copyright (c) 2015, Freemius, Inc.
	 * @license     https://www.gnu.org/licenses/gpl-3.0.html GNU General Public License Version 3
	 * @since       1.0.4
	 *
	 * @link        https://github.com/easydigitaldownloads/EDD-License-handler/blob/master/EDD_SL_Plugin_Updater.php
	 */

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

	class FS_Plugin_Updater {

		/**
		 * @var Freemius
		 * @since 1.0.4
		 */
		private $_fs;
		/**
		 * @var FS_Logger
		 * @since 1.0.4
		 */
		private $_logger;
		/**
		 * @var object
		 * @since 1.1.8.1
		 */
		private $_update_details;
		/**
		 * @var array
		 * @since 2.1.2
		 */
		private $_translation_updates;

		private static $_upgrade_basename = null;

		#--------------------------------------------------------------------------------
		#region Singleton
		#--------------------------------------------------------------------------------

		/**
		 * @var FS_Plugin_Updater[]
		 * @since 2.0.0
		 */
		private static $_INSTANCES = array();

		/**
		 * @param Freemius $freemius
		 *
		 * @return FS_Plugin_Updater
		 */
		static function instance( Freemius $freemius ) {
			$key = $freemius->get_id();

			if ( ! isset( self::$_INSTANCES[ $key ] ) ) {
				self::$_INSTANCES[ $key ] = new self( $freemius );
			}

			return self::$_INSTANCES[ $key ];
		}

		#endregion

		private function __construct( Freemius $freemius ) {
			$this->_fs = $freemius;

			$this->_logger = FS_Logger::get_logger( WP_FS__SLUG . '_' . $freemius->get_slug() . '_updater', WP_FS__DEBUG_SDK, WP_FS__ECHO_DEBUG_SDK );

			$this->filters();
		}

		/**
		 * Initiate required filters.
		 *
		 * @author Vova Feldman (@svovaf)
		 * @since  1.0.4
		 */
		private function filters() {
			// Override request for plugin information
			add_filter( 'plugins_api', array( &$this, 'plugins_api_filter' ), 10, 3 );

			$this->add_transient_filters();

			/**
			 * If user has the premium plugin's code but do NOT have an active license,
			 * encourage him to upgrade by showing that there's a new release, but instead
			 * of showing an update link, show upgrade link to the pricing page.
			 *
			 * @since 1.1.6
			 *
			 */
			// WP 2.9+
			add_action( "after_plugin_row_{$this->_fs->get_plugin_basename()}", array(
				&$this,
				'catch_plugin_update_row'
			), 9 );
			add_action( "after_plugin_row_{$this->_fs->get_plugin_basename()}", array(
				&$this,
				'edit_and_echo_plugin_update_row'
			), 11, 2 );

			if ( ! $this->_fs->has_any_active_valid_license() ) {
				add_action( 'admin_head', array( &$this, 'catch_plugin_information_dialog_contents' ) );
			}

			if ( ! WP_FS__IS_PRODUCTION_MODE ) {
				add_filter( 'http_request_host_is_external', array(
					$this,
					'http_request_host_is_external_filter'
				), 10, 3 );
			}

			if ( $this->_fs->is_premium() ) {
				if ( ! $this->is_correct_folder_name() ) {
					add_filter( 'upgrader_post_install', array( &$this, '_maybe_update_folder_name' ), 10, 3 );
				}

				add_filter( 'upgrader_pre_install', array( 'FS_Plugin_Updater', '_store_basename_for_source_adjustment' ), 1, 2 );
				add_filter( 'upgrader_source_selection', array( 'FS_Plugin_Updater', '_maybe_adjust_source_dir' ), 1, 3 );

				if ( ! $this->_fs->has_any_active_valid_license() ) {
					add_filter( 'wp_prepare_themes_for_js', array( &$this, 'change_theme_update_info_html' ), 10, 1 );
				}
			}
		}

		/**
		 * @author Leo Fajardo (@leorw)
		 * @since 2.1.4
		 */
		function catch_plugin_information_dialog_contents() {
			if (
				'plugin-information' !== fs_request_get( 'tab', false ) ||
				$this->_fs->get_slug() !== fs_request_get_raw( 'plugin', false )
			) {
				return;
			}

			add_action( 'admin_footer', array( &$this, 'edit_and_echo_plugin_information_dialog_contents' ), 0, 1 );

			ob_start();
		}

		/**
		 * @author Leo Fajardo (@leorw)
		 * @since 2.1.4
		 *
		 * @param string $hook_suffix
		 */
		function edit_and_echo_plugin_information_dialog_contents( $hook_suffix ) {
			if (
				'plugin-information' !== fs_request_get( 'tab', false ) ||
				$this->_fs->get_slug() !== fs_request_get_raw( 'plugin', false )
			) {
				return;
			}

			$license = $this->_fs->_get_license();

			$subscription = ( is_object( $license ) && ! $license->is_lifetime() ) ?
				$this->_fs->_get_subscription( $license->id ) :
				null;

			$contents = ob_get_clean();

			$install_or_update_button_id_attribute_pos = strpos( $contents, 'id="plugin_install_from_iframe"' );

			if ( false === $install_or_update_button_id_attribute_pos ) {
				$install_or_update_button_id_attribute_pos = strpos( $contents, 'id="plugin_update_from_iframe"' );
			}

			if ( false !== $install_or_update_button_id_attribute_pos ) {
				$install_or_update_button_start_pos = strrpos(
					substr( $contents, 0, $install_or_update_button_id_attribute_pos ),
					'<a'
				);

				$install_or_update_button_end_pos = ( strpos( $contents, '</a>', $install_or_update_button_id_attribute_pos ) + strlen( '</a>' ) );

				/**
				 * The part of the contents without the update button.
				 *
				 * @author Leo Fajardo (@leorw)
				 * @since 2.2.5
				 */
				$modified_contents = substr( $contents, 0, $install_or_update_button_start_pos );

				$install_or_update_button = substr( $contents, $install_or_update_button_start_pos, ( $install_or_update_button_end_pos - $install_or_update_button_start_pos ) );

				/**
				 * Replace the plugin information dialog's "Install Update Now" button's text and URL. If there's a license,
				 * the text will be "Renew license" and will link to the checkout page with the license's billing cycle
				 * and quota. If there's no license, the text will be "Buy license" and will link to the pricing page.
				 */
				$install_or_update_button = preg_replace(
					'/(\<a.+)(id="plugin_(install|update)_from_iframe")(.+href=")([^\s]+)(".*\>)(.+)(\<\/a>)/is',
					is_object( $license ) ?
						sprintf(
							'$1$4%s$6%s$8',
							$this->_fs->checkout_url(
								is_object( $subscription ) ?
									( 1 == $subscription->billing_cycle ? WP_FS__PERIOD_MONTHLY : WP_FS__PERIOD_ANNUALLY ) :
									WP_FS__PERIOD_LIFETIME,
								false,
								array( 'licenses' => $license->quota )
							),
							fs_text_inline( 'Renew license', 'renew-license', $this->_fs->get_slug() )
						) :
						sprintf(
							'$1$4%s$6%s$8',
							$this->_fs->pricing_url(),
							fs_text_inline( 'Buy license', 'buy-license', $this->_fs->get_slug() )
						),
					$install_or_update_button
				);

				/**
				 * Append the modified button.
				 *
				 * @author Leo Fajardo (@leorw)
				 * @since 2.2.5
				 */
				$modified_contents .= $install_or_update_button;

				/**
				 * Append the remaining part of the contents after the update button.
				 *
				 * @author Leo Fajardo (@leorw)
				 * @since 2.2.5
				 */
				$modified_contents .= substr( $contents, $install_or_update_button_end_pos );

				$contents = $modified_contents;
			}

			echo $contents;
		}

		/**
		 * @author Vova Feldman (@svovaf)
		 * @since  2.0.0
		 */
		private function add_transient_filters() {
			if (
				$this->_fs->is_premium() &&
				$this->_fs->is_registered() &&
				! FS_Permission_Manager::instance( $this->_fs )->is_essentials_tracking_allowed()
			) {
				$this->_logger->log( 'Opted out sites cannot receive automatic software updates.' );

				return;
			}

			add_filter( 'pre_set_site_transient_update_plugins', array(
				&$this,
				'pre_set_site_transient_update_plugins_filter'
			) );

			add_filter( 'pre_set_site_transient_update_themes', array(
				&$this,
				'pre_set_site_transient_update_plugins_filter'
			) );
		}

		/**
		 * @author Vova Feldman (@svovaf)
		 * @since  2.0.0
		 */
		private function remove_transient_filters() {
			remove_filter( 'pre_set_site_transient_update_plugins', array(
				&$this,
				'pre_set_site_transient_update_plugins_filter'
			) );

			remove_filter( 'pre_set_site_transient_update_themes', array(
				&$this,
				'pre_set_site_transient_update_plugins_filter'
			) );
		}

		/**
		 * Capture plugin update row by turning output buffering.
		 *
		 * @author Vova Feldman (@svovaf)
		 * @since  1.1.6
		 */
		function catch_plugin_update_row() {
			ob_start();
		}

		/**
		 * Overrides default update message format with "renew your license" message.
		 *
		 * @author Vova Feldman (@svovaf)
		 * @since  1.1.6
		 *
		 * @param string $file
		 * @param array  $plugin_data
		 */
		function edit_and_echo_plugin_update_row( $file, $plugin_data ) {
			$plugin_update_row = ob_get_clean();

			$current = get_site_transient( 'update_plugins' );
			if ( ! isset( $current->response[ $file ] ) ) {
				echo $plugin_update_row;

				return;
			}

			$r = $current->response[ $file ];

			$has_beta_update = $this->_fs->has_beta_update();

			if ( $this->_fs->has_any_active_valid_license() ) {
				if ( $has_beta_update ) {
					/**
					 * Turn the "new version" text into "new Beta version".
					 *
					 * Sample input:
					 *      There is a new version of Awesome Plugin available. <a href="...>View version x.y.z details</a> or <a href="...>update now</a>.
					 * Output:
					 *      There is a new Beta version of Awesome Plugin available. <a href="...>View version x.y.z details</a> or <a href="...>update now</a>.
					 *
					 * @author Leo Fajardo (@leorw)
					 * @since 2.3.0
					 */
					$plugin_update_row = preg_replace(
						'/(\<div.+>)(.+)(\<a.+href="([^\s]+)"([^\<]+)\>.+\<a.+)(\<\/div\>)/is',
						(
							'$1' .
							sprintf(
								fs_text_inline( 'There is a %s of %s available.', 'new-version-available', $this->_fs->get_slug() ),
								$has_beta_update ?
									fs_text_inline( 'new Beta version', 'new-beta-version', $this->_fs->get_slug() ) :
									fs_text_inline( 'new version', 'new-version', $this->_fs->get_slug() ),
								$this->_fs->get_plugin_title()
							) .
							' ' .
							'$3' .
							'$6'
						),
						$plugin_update_row
					);
				}
			} else {
				/**
				 * Turn the "new version" text into a link that opens the plugin information dialog when clicked and
				 * make the "View version x details" text link to the checkout page instead of opening the plugin
				 * information dialog when clicked.
				 *
				 * Sample input:
				 *      There is a new version of Awesome Plugin available. <a href="...>View version x.y.z details</a> or <a href="...>update now</a>.
				 * Output:
				 *      There is a <a href="...>new version</a> of Awesome Plugin available. <a href="...>Buy a license now</a> to access version x.y.z security & feature updates, and support.
				 *      OR
				 *      There is a <a href="...>new Beta version</a> of Awesome Plugin available. <a href="...>Buy a license now</a> to access version x.y.z security & feature updates, and support.
				 *
				 * @author Leo Fajardo (@leorw)
				 */
				$plugin_update_row = preg_replace(
					'/(\<div.+>)(.+)(\<a.+href="([^\s]+)"([^\<]+)\>.+\<a.+)(\<\/div\>)/is',
					(
						'$1' .
						sprintf(
							fs_text_inline( 'There is a %s of %s available.', 'new-version-available', $this->_fs->get_slug() ),
							sprintf(
								'<a href="$4"%s>%s</a>',
								'$5',
								$has_beta_update ?
									fs_text_inline( 'new Beta version', 'new-beta-version', $this->_fs->get_slug() ) :
									fs_text_inline( 'new version', 'new-version', $this->_fs->get_slug() )
							),
							$this->_fs->get_plugin_title()
						) .
						' ' .
						$this->_fs->version_upgrade_checkout_link( $r->new_version ) .
						'$6'
					),
					$plugin_update_row
				);
			}

			if (
				$this->_fs->is_plugin() &&
				isset( $r->upgrade_notice ) &&
				strlen( trim( $r->upgrade_notice ) ) > 0
			) {
				$slug = $this->_fs->get_slug();

				$upgrade_notice_html = sprintf(
					'<p class="notice fs-upgrade-notice fs-slug-%1$s fs-type-%2$s" data-slug="%1$s" data-type="%2$s"><strong>%3$s</strong> %4$s</p>',
					$slug,
					$this->_fs->get_module_type(),
					fs_text_inline( 'Important Upgrade Notice:', 'upgrade_notice', $slug ),
					esc_html( $r->upgrade_notice )
				);

				$plugin_update_row = str_replace( '</div>', '</div>' . $upgrade_notice_html, $plugin_update_row );
			}

			echo $plugin_update_row;
		}

		/**
		 * @author Leo Fajardo (@leorw)
		 * @since  2.0.2
		 *
		 * @param array $prepared_themes
		 *
		 * @return array
		 */
		function change_theme_update_info_html( $prepared_themes ) {
			$theme_basename = $this->_fs->get_plugin_basename();

			if ( ! isset( $prepared_themes[ $theme_basename ] ) ) {
				return $prepared_themes;
			}

			$themes_update = get_site_transient( 'update_themes' );
			if ( ! isset( $themes_update->response[ $theme_basename ] ) ||
				 empty( $themes_update->response[ $theme_basename ]['package'] )
			) {
				return $prepared_themes;
			}

			$prepared_themes[ $theme_basename ]['update'] = preg_replace(
				'/(\<p.+>)(.+)(\<a.+\<a.+)\.(.+\<\/p\>)/is',
				'$1 $2 ' . $this->_fs->version_upgrade_checkout_link( $themes_update->response[ $theme_basename ]['new_version'] ) .
				'$4',
				$prepared_themes[ $theme_basename ]['update']
			);

			// Set to false to prevent the "Update now" link for the context theme from being shown on the "Themes" page.
			$prepared_themes[ $theme_basename ]['hasPackage'] = false;

			return $prepared_themes;
		}

		/**
		 * Since WP version 3.6, a new security feature was added that denies access to repository with a local ip.
		 * During development mode we want to be able updating plugin versions via our localhost repository. This
		 * filter white-list all domains including "api.freemius".
		 *
		 * @link   http://www.emanueletessore.com/wordpress-download-failed-valid-url-provided/
		 *
		 * @author Vova Feldman (@svovaf)
		 * @since  1.0.4
		 *
		 * @param bool   $allow
		 * @param string $host
		 * @param string $url
		 *
		 * @return bool
		 */
		function http_request_host_is_external_filter( $allow, $host, $url ) {
			return ( false !== strpos( $host, 'freemius' ) ) ? true : $allow;
		}

		/**
		 * Check for Updates at the defined API endpoint and modify the update array.
		 *
		 * This function dives into the update api just when WordPress creates its update array,
		 * then adds a custom API call and injects the custom plugin data retrieved from the API.
		 * It is reassembled from parts of the native WordPress plugin update code.
		 * See wp-includes/update.php line 121 for the original wp_update_plugins() function.
		 *
		 * @author Vova Feldman (@svovaf)
		 * @since  1.0.4
		 *
		 * @uses   FS_Api
		 *
		 * @param object $transient_data Update array build by WordPress.
		 *
		 * @return object Modified update array with custom plugin data.
		 */
		function pre_set_site_transient_update_plugins_filter( $transient_data ) {
			$this->_logger->entrance();

			/**
			 * "plugins" or "themes".
			 *
			 * @author Leo Fajardo (@leorw)
			 * @since  1.2.2
			 */
			$module_type = $this->_fs->get_module_type() . 's';

			/**
			 * Ensure that we don't mix plugins update info with themes update info.
			 *
			 * @author Leo Fajardo (@leorw)
			 * @since  1.2.2
			 */
			if ( "pre_set_site_transient_update_{$module_type}" !== current_filter() ) {
				return $transient_data;
			}

			if ( empty( $transient_data ) ||
				 defined( 'WP_FS__UNINSTALL_MODE' )
			) {
				return $transient_data;
			}

			global $wp_current_filter;

			$current_plugin_version = $this->_fs->get_plugin_version();

			if ( ! empty( $wp_current_filter ) && 'upgrader_process_complete' === $wp_current_filter[0] ) {
				if (
					is_null( $this->_update_details ) ||
					( is_object( $this->_update_details ) && $this->_update_details->new_version !== $current_plugin_version )
				) {
					/**
					 * After an update, clear the stored update details and reparse the plugin's main file in order to get
					 * the updated version's information and prevent the previous update information from showing up on the
					 * updates page.
					 *
					 * @author Leo Fajardo (@leorw)
					 * @since 2.3.1
					 */
					$this->_update_details  = null;
					$current_plugin_version = $this->_fs->get_plugin_version( true );
				}
			}

			if ( ! isset( $this->_update_details ) ) {
				// Get plugin's newest update.
				$new_version = $this->_fs->get_update(
					false,
					fs_request_get_bool( 'force-check' ),
					WP_FS__TIME_24_HOURS_IN_SEC / 24,
					$current_plugin_version
				);

				$this->_update_details = false;

				if ( is_object( $new_version ) && $this->is_new_version_premium( $new_version ) ) {
					$this->_logger->log( 'Found newer plugin version ' . $new_version->version );

					/**
					 * Cache plugin details locally since set_site_transient( 'update_plugins' )
					 * called multiple times and the non wp.org plugins are filtered after the
					 * call to .org.
					 *
					 * @since 1.1.8.1
					 */
					$this->_update_details = $this->get_update_details( $new_version );
				}
			}

			// Alias.
			$basename = $this->_fs->premium_plugin_basename();

			if ( is_object( $this->_update_details ) ) {
				if ( isset( $transient_data->no_update ) ) {
					unset( $transient_data->no_update[ $basename ] );
				}

				if ( ! isset( $transient_data->response ) ) {
					$transient_data->response = array();
				}

				// Add plugin to transient data.
				$transient_data->response[ $basename ] = $this->_fs->is_plugin() ?
					$this->_update_details :
					(array) $this->_update_details;
			} else {
				if ( isset( $transient_data->response ) ) {
					/**
					 * Ensure that there's no update data for the plugin to prevent upgrading the premium version to the latest free version.
					 *
					 * @author Leo Fajardo (@leorw)
					 * @since 2.3.0
					 */
					unset( $transient_data->response[ $basename ] );
				}

				if ( ! isset( $transient_data->no_update ) ) {
					$transient_data->no_update = array();
				}

				/**
				 * Add product to no_update transient data to properly integrate with WP 5.5 auto-updates UI.
				 *
				 * @since 2.4.1
				 * @link https://make.wordpress.org/core/2020/07/30/recommended-usage-of-the-updates-api-to-support-the-auto-updates-ui-for-plugins-and-themes-in-wordpress-5-5/
				 */
				$transient_data->no_update[ $basename ] = $this->_fs->is_plugin() ?
					(object) array(
						'id'            => $basename,
						'slug'          => $this->_fs->get_slug(),
						'plugin'        => $basename,
						'new_version'   => $this->_fs->get_plugin_version(),
						'url'           => '',
						'package'       => '',
						'icons'         => array(),
						'banners'       => array(),
						'banners_rtl'   => array(),
						'tested'        => '',
						'requires_php'  => '',
						'compatibility' => new stdClass(),
					) :
					array(
						'theme'        => $basename,
						'new_version'  => $this->_fs->get_plugin_version(),
						'url'          => '',
						'package'      => '',
						'requires'     => '',
						'requires_php' => '',
					);
			}

			$slug = $this->_fs->get_slug();

			if ( $this->_fs->is_org_repo_compliant() && $this->_fs->is_freemium() ) {
				if ( ! isset( $this->_translation_updates ) ) {
					$this->_translation_updates = array();

					$translation_updates = $this->fetch_wp_org_module_translation_updates( $module_type, $slug );
					if ( ! empty( $translation_updates ) ) {
						$this->_translation_updates = $translation_updates;
					}
				}

				if ( ! empty( $this->_translation_updates ) ) {
					$all_translation_updates = ( isset( $transient_data->translations ) && is_array( $transient_data->translations ) ) ?
						$transient_data->translations :
						array();

					$current_plugin_translation_updates_map = array();
					foreach ( $all_translation_updates as $key => $translation_update ) {
						if ( $module_type === ( $translation_update['type'] . 's' ) && $slug === $translation_update['slug'] ) {
							$current_plugin_translation_updates_map[ $translation_update['language'] ] = $translation_update;
							unset( $all_translation_updates[ $key ] );
						}
					}

					foreach ( $this->_translation_updates as $translation_update ) {
						$lang = $translation_update['language'];
						if ( ! isset( $current_plugin_translation_updates_map[ $lang ] ) ||
							 version_compare( $translation_update['version'], $current_plugin_translation_updates_map[ $lang ]['version'], '>' )
						) {
							$current_plugin_translation_updates_map[ $lang ] = $translation_update;
						}
					}

					$transient_data->translations = array_merge( $all_translation_updates, array_values( $current_plugin_translation_updates_map ) );
				}
			}

			return $transient_data;
		}

		/**
		 * Get module's required data for the updates' mechanism.
		 *
		 * @author Vova Feldman (@svovaf)
		 * @since  2.0.0
		 *
		 * @param \FS_Plugin_Tag $new_version
		 *
		 * @return object
		 */
		function get_update_details( FS_Plugin_Tag $new_version ) {
			$update               = new stdClass();
			$update->slug         = $this->_fs->get_slug();
			$update->new_version  = $new_version->version;
			$update->url          = WP_FS__ADDRESS;
			$update->package      = $new_version->url;
			$update->tested       = self::get_tested_wp_version( $new_version->tested_up_to_version );
			$update->requires     = $new_version->requires_platform_version;
			$update->requires_php = $new_version->requires_programming_language_version;

			$icon = $this->_fs->get_local_icon_url();

			if ( ! empty( $icon ) ) {
				$update->icons = array(
//                    '1x'      => $icon,
//                    '2x'      => $icon,
					'default' => $icon,
				);
			}

			if ( $this->_fs->is_premium() ) {
				$latest_tag = $this->_fs->_fetch_latest_version( $this->_fs->get_id(), false );

				if (
					isset( $latest_tag->readme ) &&
					isset( $latest_tag->readme->upgrade_notice ) &&
					! empty( $latest_tag->readme->upgrade_notice )
				) {
					$update->upgrade_notice = $latest_tag->readme->upgrade_notice;
				}
			}

			$update->{$this->_fs->get_module_type()} = $this->_fs->get_plugin_basename();

			return $update;
		}

		/**
		 * @author Leo Fajardo (@leorw)
		 * @since 2.3.0
		 *
		 * @param FS_Plugin_Tag $new_version
		 *
		 * @return bool
		 */
		private function is_new_version_premium( FS_Plugin_Tag $new_version ) {
			$params = fs_parse_url_params( $new_version->url );

			return ( isset( $params['is_premium'] ) && 'true' == $params['is_premium'] );
		}

		/**
		 * Update the updates transient with the module's update information.
		 *
		 * This method is required for multisite environment.
		 * If a module is site activated (not network) and not on the main site,
		 * the module will NOT be executed on the network level, therefore, the
		 * custom updates logic will not be executed as well, so unless we force
		 * the injection of the update into the updates transient, premium updates
		 * will not work.
		 *
		 * @author Vova Feldman (@svovaf)
		 * @since  2.0.0
		 *
		 * @param \FS_Plugin_Tag $new_version
		 */
		function set_update_data( FS_Plugin_Tag $new_version ) {
			$this->_logger->entrance();

			if ( ! $this->is_new_version_premium( $new_version ) ) {
				return;
			}

			$transient_key = "update_{$this->_fs->get_module_type()}s";

			$transient_data = get_site_transient( $transient_key );

			$transient_data = is_object( $transient_data ) ?
				$transient_data :
				new stdClass();

			// Alias.
			$basename  = $this->_fs->get_plugin_basename();
			$is_plugin = $this->_fs->is_plugin();

			if ( ! isset( $transient_data->response ) ||
				 ! is_array( $transient_data->response )
			) {
				$transient_data->response = array();
			} else if ( ! empty( $transient_data->response[ $basename ] ) ) {
				$version = $is_plugin ?
					( ! empty( $transient_data->response[ $basename ]->new_version ) ?
						$transient_data->response[ $basename ]->new_version :
						null
					) : ( ! empty( $transient_data->response[ $basename ]['new_version'] ) ?
						$transient_data->response[ $basename ]['new_version'] :
						null
					);

				if ( $version == $new_version->version ) {
					// The update data is already set.
					return;
				}
			}

			// Remove the added filters.
			$this->remove_transient_filters();

			$this->_update_details = $this->get_update_details( $new_version );

			// Set update data in transient.
			$transient_data->response[ $basename ] = $is_plugin ?
				$this->_update_details :
				(array) $this->_update_details;

			if ( ! isset( $transient_data->checked ) ||
				 ! is_array( $transient_data->checked )
			) {
				$transient_data->checked = array();
			}

			// Flag the module as if it was already checked.
			$transient_data->checked[ $basename ] = $this->_fs->get_plugin_version();
			$transient_data->last_checked         = time();

			set_site_transient( $transient_key, $transient_data );

			$this->add_transient_filters();
		}

		/**
		 * @author Leo Fajardo (@leorw)
		 * @since 2.0.2
		 */
		function delete_update_data() {
			$this->_logger->entrance();

			$transient_key = "update_{$this->_fs->get_module_type()}s";

			$transient_data = get_site_transient( $transient_key );

			// Alias
			$basename = $this->_fs->get_plugin_basename();

			if ( ! is_object( $transient_data ) ||
				 ! isset( $transient_data->response ) ||
				 ! is_array( $transient_data->response ) ||
				 empty( $transient_data->response[ $basename ] )
			) {
				return;
			}

			unset( $transient_data->response[ $basename ] );

			// Remove the added filters.
			$this->remove_transient_filters();

			set_site_transient( $transient_key, $transient_data );

			$this->add_transient_filters();
		}

		/**
		 * Try to fetch plugin's info from .org repository.
		 *
		 * @author Vova Feldman (@svovaf)
		 * @since  1.0.5
		 *
		 * @param string $action
		 * @param object $args
		 *
		 * @return bool|mixed
		 */
		static function _fetch_plugin_info_from_repository( $action, $args ) {
			$url = $http_url = 'http://api.wordpress.org/plugins/info/1.2/';
			$url = add_query_arg(
				array(
					'action'  => $action,
					'request' => $args,
				),
				$url
			);

			if ( wp_http_supports( array( 'ssl' ) ) ) {
				$url = set_url_scheme( $url, 'https' );
			}

			// The new endpoint version serves only GET requests.
			$request = wp_remote_get( $url, array( 'timeout' => 15 ) );

			if ( is_wp_error( $request ) ) {
				return false;
			}

			$res = json_decode( wp_remote_retrieve_body( $request ), true );

			if ( is_array( $res ) ) {
				// Object casting is required in order to match the info/1.0 format. We are not decoding directly into an object as we need some fields to remain an array (e.g., $res->sections).
				$res = (object) $res;
			}

			if ( ! is_object( $res ) || isset( $res->error ) ) {
				return false;
			}

			return $res;
		}

		/**
		 * Fetches module translation updates from wordpress.org.
		 *
		 * @author Leo Fajardo (@leorw)
		 * @since  2.1.2
		 *
		 * @param string $module_type
		 * @param string $slug
		 *
		 * @return array|null
		 */
		private function fetch_wp_org_module_translation_updates( $module_type, $slug ) {
			$plugin_data = $this->_fs->get_plugin_data();

			$locales = array_values( get_available_languages() );
			$locales = apply_filters( "{$module_type}_update_check_locales", $locales );
			$locales = array_unique( $locales );

			$plugin_basename = $this->_fs->get_plugin_basename();
			if ( 'themes' === $module_type ) {
				$plugin_basename = $slug;
			}

			global $wp_version;

			$request_args = array(
				'timeout' => 15,
				'body'    => array(
					"{$module_type}" => json_encode(
						array(
							"{$module_type}" => array(
								$plugin_basename => array(
									'Name'   => trim( str_replace( $this->_fs->get_plugin()->premium_suffix, '', $plugin_data['Name'] ) ),
									'Author' => $plugin_data['Author'],
								)
							)
						)
					),
					'translations'    => json_encode( $this->get_installed_translations( $module_type, $slug ) ),
					'locale'          => json_encode( $locales )
				),
				'user-agent' => ( 'WordPress/' . $wp_version . '; ' . home_url( '/' ) )
			);

			$url = "http://api.wordpress.org/{$module_type}/update-check/1.1/";
			if ( $ssl = wp_http_supports( array( 'ssl' ) ) ) {
				$url = set_url_scheme( $url, 'https' );
			}

			$raw_response = Freemius::safe_remote_post(
				$url,
				$request_args,
				WP_FS__TIME_24_HOURS_IN_SEC,
				WP_FS__TIME_12_HOURS_IN_SEC,
				false
			);

			if ( is_wp_error( $raw_response ) ) {
				return null;
			}

			$response = json_decode( wp_remote_retrieve_body( $raw_response ), true );

			if ( ! is_array( $response ) ) {
				return null;
			}

			if ( ! isset( $response['translations'] ) || empty( $response['translations'] ) ) {
				return null;
			}

			return $response['translations'];
		}

		/**
		 * @author Leo Fajardo (@leorw)
		 * @since 2.1.2
		 *
		 * @param string $module_type
		 * @param string $slug
		 *
		 * @return array
		 */
		private function get_installed_translations( $module_type, $slug ) {
			if ( function_exists( 'wp_get_installed_translations' ) ) {
				return wp_get_installed_translations( $module_type );
			}

			$dir = "/{$module_type}";

			if ( ! is_dir( WP_LANG_DIR . $dir ) )
				return array();

			$files = scandir( WP_LANG_DIR . $dir );
			if ( ! $files )
				return array();

			$language_data = array();

			foreach ( $files as $file ) {
				if ( 0 !== strpos( $file, $slug ) ) {
					continue;
				}

				if ( '.' === $file[0] || is_dir( WP_LANG_DIR . "{$dir}/{$file}" ) ) {
					continue;
				}

				if ( substr( $file, -3 ) !== '.po' ) {
					continue;
				}

				if ( ! preg_match( '/(?:(.+)-)?([a-z]{2,3}(?:_[A-Z]{2})?(?:_[a-z0-9]+)?).po/', $file, $match ) ) {
					continue;
				}

				if ( ! in_array( substr( $file, 0, -3 ) . '.mo', $files ) )  {
					continue;
				}

				list( , $textdomain, $language ) = $match;

				if ( '' === $textdomain ) {
					$textdomain = 'default';
				}

				$language_data[ $textdomain ][ $language ] = wp_get_pomo_file_data( WP_LANG_DIR . "{$dir}/{$file}" );
			}

			return $language_data;
		}

		/**
		 * Updates information on the "View version x.x details" page with custom data.
		 *
		 * @author Vova Feldman (@svovaf)
		 * @since  1.0.4
		 *
		 * @uses   FS_Api
		 *
		 * @param object $data
		 * @param string $action
		 * @param mixed  $args
		 *
		 * @return object
		 */
		function plugins_api_filter( $data, $action = '', $args = null ) {
			$this->_logger->entrance();

			if ( ( 'plugin_information' !== $action ) ||
				 ! isset( $args->slug )
			) {
				return $data;
			}

			$addon         = false;
			$is_addon      = false;
			$addon_version = false;

			if ( $this->_fs->get_slug() !== $args->slug ) {
				$addon = $this->_fs->get_addon_by_slug( $args->slug );

				if ( ! is_object( $addon ) ) {
					return $data;
				}

				if ( $this->_fs->is_addon_activated( $addon->id ) ) {
					$addon_version = $this->_fs->get_addon_instance( $addon->id )->get_plugin_version();
				} else if ( $this->_fs->is_addon_installed( $addon->id ) ) {
					$addon_plugin_data = get_plugin_data(
						( WP_PLUGIN_DIR . '/' . $this->_fs->get_addon_basename( $addon->id ) ),
						false,
						false
					);

					if ( ! empty( $addon_plugin_data ) ) {
						$addon_version = $addon_plugin_data['Version'];
					}
				}

				$is_addon = true;
			}

			$plugin_in_repo = false;
			if ( ! $is_addon ) {
				// Try to fetch info from .org repository.
				$data = self::_fetch_plugin_info_from_repository( $action, $args );

				$plugin_in_repo = ( false !== $data );
			}

			if ( ! $plugin_in_repo ) {
				$data = $args;

				// Fetch as much as possible info from local files.
				$plugin_local_data = $this->_fs->get_plugin_data();
				$data->name        = $plugin_local_data['Name'];
				$data->author      = $plugin_local_data['Author'];
				$data->sections    = array(
					'description' => 'Upgrade ' . $plugin_local_data['Name'] . ' to latest.',
				);

				// @todo Store extra plugin info on Freemius or parse readme.txt markup.
				/*$info = $this->_fs->get_api_site_scope()->call('/information.json');

if ( !isset($info->error) ) {
	$data = $info;
}*/
			}

			$plugin_version = $is_addon ?
				$addon_version :
				$this->_fs->get_plugin_version();

			// Get plugin's newest update.
			$new_version = $this->get_latest_download_details( $is_addon ? $addon->id : false, $plugin_version );

			if ( ! is_object( $new_version ) || empty( $new_version->version ) ) {
				$data->version = $plugin_version;
			} else {
				if ( $is_addon ) {
					$data->name    = $addon->title . ' ' . $this->_fs->get_text_inline( 'Add-On', 'addon' );
					$data->slug    = $addon->slug;
					$data->url     = WP_FS__ADDRESS;
					$data->package = $new_version->url;
				}

				if ( ! $plugin_in_repo ) {
					$data->last_updated = ! is_null( $new_version->updated ) ? $new_version->updated : $new_version->created;
					$data->requires     = $new_version->requires_platform_version;
					$data->requires_php = $new_version->requires_programming_language_version;
					$data->tested       = $new_version->tested_up_to_version;
				}

				$data->version       = $new_version->version;
				$data->download_link = $new_version->url;

				if ( isset( $new_version->readme ) && is_object( $new_version->readme ) ) {
					$new_version_readme_data = $new_version->readme;
					if ( isset( $new_version_readme_data->sections ) ) {
						$new_version_readme_data->sections = (array) $new_version_readme_data->sections;
					} else {
						$new_version_readme_data->sections = array();
					}

					if ( isset( $data->sections ) ) {
						if ( isset( $data->sections['screenshots'] ) ) {
							$new_version_readme_data->sections['screenshots'] = $data->sections['screenshots'];
						}

						if ( isset( $data->sections['reviews'] ) ) {
							$new_version_readme_data->sections['reviews'] = $data->sections['reviews'];
						}
					}

					if ( isset( $new_version_readme_data->banners ) ) {
						$new_version_readme_data->banners = (array) $new_version_readme_data->banners;
					} else if ( isset( $data->banners ) ) {
						$new_version_readme_data->banners = $data->banners;
					}

					$wp_org_sections = array(
						'author',
						'author_profile',
						'rating',
						'ratings',
						'num_ratings',
						'support_threads',
						'support_threads_resolved',
						'active_installs',
						'added',
						'homepage'
					);

					foreach ( $wp_org_sections as $wp_org_section ) {
						if ( isset( $data->{$wp_org_section} ) ) {
							$new_version_readme_data->{$wp_org_section} = $data->{$wp_org_section};
						}
					}

					$data = $new_version_readme_data;
				}
			}

			if ( ! empty( $data->tested ) ) {
				$data->tested = self::get_tested_wp_version( $data->tested );
			}

			return $data;
		}

		/**
		 * @since 2.5.3 If the current WordPress version is a patch of the tested version (e.g., 6.1.2 is a patch of 6.1), then override the tested version with the patch so developers won't need to release a new version just to bump the latest supported WP version.
		 *
		 * @param string|null $tested_up_to
		 *
		 * @return string|null
		 */
		private static function get_tested_wp_version( $tested_up_to ) {
			$current_wp_version = get_bloginfo( 'version' );

			return ( ! empty($tested_up_to) && fs_starts_with( $current_wp_version, $tested_up_to . '.' ) ) ?
				$current_wp_version :
				$tested_up_to;
		}

		/**
		 * @author Vova Feldman (@svovaf)
		 * @since  1.2.1.7
		 *
		 * @param number|bool $addon_id
		 * @param bool|string $newer_than   Since 2.2.1
		 * @param bool|string $fetch_readme Since 2.2.1
		 *
		 * @return object
		 */
		private function get_latest_download_details( $addon_id = false, $newer_than = false, $fetch_readme = true ) {
			return $this->_fs->_fetch_latest_version( $addon_id, true, WP_FS__TIME_24_HOURS_IN_SEC, $newer_than, $fetch_readme );
		}

		/**
		 * Checks if a given basename has a matching folder name
		 * with the current context plugin.
		 *
		 * @author Vova Feldman (@svovaf)
		 * @since  1.2.1.6
		 *
		 * @return bool
		 */
		private function is_correct_folder_name() {
			return ( $this->_fs->get_target_folder_name() == trim( dirname( $this->_fs->get_plugin_basename() ), '/\\' ) );
		}

		/**
		 * This is a special after upgrade handler for migrating modules
		 * that didn't use the '-premium' suffix folder structure before
		 * the migration.
		 *
		 * @author Vova Feldman (@svovaf)
		 * @since  1.2.1.6
		 *
		 * @param bool  $response   Install response.
		 * @param array $hook_extra Extra arguments passed to hooked filters.
		 * @param array $result     Installation result data.
		 *
		 * @return bool
		 */
		function _maybe_update_folder_name( $response, $hook_extra, $result ) {
			$basename = $this->_fs->get_plugin_basename();

			if ( true !== $response ||
				 empty( $hook_extra ) ||
				 empty( $hook_extra['plugin'] ) ||
				 $basename !== $hook_extra['plugin']
			) {
				return $response;
			}

			$active_plugins_basenames = get_option( 'active_plugins' );

			foreach ( $active_plugins_basenames as $key => $active_plugin_basename ) {
				if ( $basename === $active_plugin_basename ) {
					// Get filename including extension.
					$filename = basename( $basename );

					$new_basename = plugin_basename(
						trailingslashit( $this->_fs->is_premium() ? $this->_fs->get_premium_slug() : $this->_fs->get_slug() ) .
						$filename
					);

					// Verify that the expected correct path exists.
					if ( file_exists( fs_normalize_path( WP_PLUGIN_DIR . '/' . $new_basename ) ) ) {
						// Override active plugin name.
						$active_plugins_basenames[ $key ] = $new_basename;
						update_option( 'active_plugins', $active_plugins_basenames );
					}

					break;
				}
			}

			return $response;
		}

		#----------------------------------------------------------------------------------
		#region Auto Activation
		#----------------------------------------------------------------------------------

		/**
		 * Installs and active a plugin when explicitly requested that from a 3rd party service.
		 *
		 * This logic was inspired by the TGMPA GPL licensed library by Thomas Griffin.
		 *
		 * @link   http://tgmpluginactivation.com/
		 *
		 * @author Vova Feldman
		 * @since  1.2.1.7
		 *
		 * @link   https://make.wordpress.org/plugins/2017/03/16/clarification-of-guideline-8-executable-code-and-installs/
		 *
		 * @uses   WP_Filesystem
		 * @uses   WP_Error
		 * @uses   WP_Upgrader
		 * @uses   Plugin_Upgrader
		 * @uses   Plugin_Installer_Skin
		 * @uses   Plugin_Upgrader_Skin
		 *
		 * @param number|bool $plugin_id
		 *
		 * @return array
		 */
		function install_and_activate_plugin( $plugin_id = false ) {
			if ( ! empty( $plugin_id ) && ! FS_Plugin::is_valid_id( $plugin_id ) ) {
				// Invalid plugin ID.
				return array(
					'message' => $this->_fs->get_text_inline( 'Invalid module ID.', 'auto-install-error-invalid-id' ),
					'code'    => 'invalid_module_id',
				);
			}

			$is_addon = false;
			if ( FS_Plugin::is_valid_id( $plugin_id ) &&
				 $plugin_id != $this->_fs->get_id()
			) {
				$addon = $this->_fs->get_addon( $plugin_id );

				if ( ! is_object( $addon ) ) {
					// Invalid add-on ID.
					return array(
						'message' => $this->_fs->get_text_inline( 'Invalid module ID.', 'auto-install-error-invalid-id' ),
						'code'    => 'invalid_module_id',
					);
				}

				$slug          = $addon->slug;
				$premium_slug  = $addon->premium_slug;
				$title         = $addon->title . ' ' . $this->_fs->get_text_inline( 'Add-On', 'addon' );

				$is_addon = true;
			} else {
				$slug          = $this->_fs->get_slug();
				$premium_slug  = $this->_fs->get_premium_slug();
				$title         = $this->_fs->get_plugin_title() .
								 ( $this->_fs->is_addon() ? ' ' . $this->_fs->get_text_inline( 'Add-On', 'addon' ) : '' );
			}

			if ( $this->is_premium_plugin_active( $plugin_id ) ) {
				// Premium version already activated.
				return array(
					'message' => $is_addon ?
						$this->_fs->get_text_inline( 'Premium add-on version already installed.', 'auto-install-error-premium-addon-activated' ) :
						$this->_fs->get_text_inline( 'Premium version already active.', 'auto-install-error-premium-activated' ),
					'code'    => 'premium_installed',
				);
			}

			$latest_version = $this->get_latest_download_details( $plugin_id, false, false );
			$target_folder  = $premium_slug;

			// Prep variables for Plugin_Installer_Skin class.
			$extra         = array();
			$extra['slug'] = $target_folder;
			$source        = $latest_version->url;
			$api           = null;

			$install_url = add_query_arg(
				array(
					'action' => 'install-plugin',
					'plugin' => urlencode( $slug ),
				),
				'update.php'
			);

			if ( ! class_exists( 'Plugin_Upgrader', false ) ) {
				// Include required resources for the installation.
				require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
			}

			$skin_args = array(
				'type'   => 'web',
				'title'  => sprintf( $this->_fs->get_text_inline( 'Installing plugin: %s', 'installing-plugin-x' ), $title ),
				'url'    => esc_url_raw( $install_url ),
				'nonce'  => 'install-plugin_' . $slug,
				'plugin' => '',
				'api'    => $api,
				'extra'  => $extra,
			);

//			$skin = new Automatic_Upgrader_Skin( $skin_args );
//			$skin = new Plugin_Installer_Skin( $skin_args );
			$skin = new WP_Ajax_Upgrader_Skin( $skin_args );

			// Create a new instance of Plugin_Upgrader.
			$upgrader = new Plugin_Upgrader( $skin );

			// Perform the action and install the plugin from the $source urldecode().
			add_filter( 'upgrader_source_selection', array( 'FS_Plugin_Updater', '_maybe_adjust_source_dir' ), 1, 3 );

			$install_result = $upgrader->install( $source );

			remove_filter( 'upgrader_source_selection', array( 'FS_Plugin_Updater', '_maybe_adjust_source_dir' ), 1 );

			if ( is_wp_error( $install_result ) ) {
				return array(
					'message' => $install_result->get_error_message(),
					'code'    => $install_result->get_error_code(),
				);
			} elseif ( is_wp_error( $skin->result ) ) {
				return array(
					'message' => $skin->result->get_error_message(),
					'code'    => $skin->result->get_error_code(),
				);
			} elseif ( $skin->get_errors()->get_error_code() ) {
				return array(
					'message' => $skin->get_error_messages(),
					'code'    => 'unknown',
				);
			} elseif ( is_null( $install_result ) ) {
				global $wp_filesystem;

				$error_code    = 'unable_to_connect_to_filesystem';
				$error_message = $this->_fs->get_text_inline( 'Unable to connect to the filesystem. Please confirm your credentials.' );

				// Pass through the error from WP_Filesystem if one was raised.
				if ( $wp_filesystem instanceof WP_Filesystem_Base &&
					 is_wp_error( $wp_filesystem->errors ) &&
					 $wp_filesystem->errors->get_error_code()
				) {
					$error_message = $wp_filesystem->errors->get_error_message();
				}

				return array(
					'message' => $error_message,
					'code'    => $error_code,
				);
			}

			// Grab the full path to the main plugin's file.
			$plugin_activate = $upgrader->plugin_info();

			// Try to activate the plugin.
			$activation_result = $this->try_activate_plugin( $plugin_activate );

			if ( is_wp_error( $activation_result ) ) {
				return array(
					'message' => $activation_result->get_error_message(),
					'code'    => $activation_result->get_error_code(),
				);
			}

			return $skin->get_upgrade_messages();
		}

		/**
		 * Tries to activate a plugin. If fails, returns the error.
		 *
		 * @author Vova Feldman
		 * @since  1.2.1.7
		 *
		 * @param string $file_path Path within wp-plugins/ to main plugin file.
		 *                          This determines the styling of the output messages.
		 *
		 * @return bool|WP_Error
		 */
		protected function try_activate_plugin( $file_path ) {
			$activate = activate_plugin( $file_path, '', $this->_fs->is_network_active() );

			return is_wp_error( $activate ) ?
				$activate :
				true;
		}

		/**
		 * Check if a premium module version is already active.
		 *
		 * @author Vova Feldman
		 * @since  1.2.1.7
		 *
		 * @param number|bool $plugin_id
		 *
		 * @return bool
		 */
		private function is_premium_plugin_active( $plugin_id = false ) {
			if ( $plugin_id != $this->_fs->get_id() ) {
				return $this->_fs->is_addon_activated( $plugin_id, true );
			}

			return is_plugin_active( $this->_fs->premium_plugin_basename() );
		}

		/**
		 * Store the basename since it's not always available in the `_maybe_adjust_source_dir` method below.
		 *
		 * @author Leo Fajardo (@leorw)
		 * @since 2.2.1
		 *
		 * @param bool|WP_Error $response   Response.
		 * @param array         $hook_extra Extra arguments passed to hooked filters.
		 *
		 * @return bool|WP_Error
		 */
		static function _store_basename_for_source_adjustment( $response, $hook_extra ) {
			if ( isset( $hook_extra['plugin'] ) ) {
				self::$_upgrade_basename = $hook_extra['plugin'];
			} else if ( isset( $hook_extra['theme'] ) ) {
				self::$_upgrade_basename = $hook_extra['theme'];
			} else {
				self::$_upgrade_basename = null;
			}

			return $response;
		}

		/**
		 * Adjust the plugin directory name if necessary.
		 * Assumes plugin has a folder (not a single file plugin).
		 *
		 * The final destination directory of a plugin is based on the subdirectory name found in the
		 * (un)zipped source. In some cases this subdirectory name is not the same as the expected
		 * slug and the plugin will not be recognized as installed. This is fixed by adjusting
		 * the temporary unzipped source subdirectory name to the expected plugin slug.
		 *
		 * @author Vova Feldman
		 * @since  1.2.1.7
		 * @since  2.2.1 The method was converted to static since when the admin update bulk products via the Updates section, the logic applies the `upgrader_source_selection` filter for every product that is being updated.
		 *
		 * @param string       $source        Path to upgrade/zip-file-name.tmp/subdirectory/.
		 * @param string       $remote_source Path to upgrade/zip-file-name.tmp.
		 * @param \WP_Upgrader $upgrader      Instance of the upgrader which installs the plugin.
		 *
		 * @return string|WP_Error
		 */
		static function _maybe_adjust_source_dir( $source, $remote_source, $upgrader ) {
			if ( ! is_object( $GLOBALS['wp_filesystem'] ) ) {
				return $source;
			}

			$basename = self::$_upgrade_basename;
			$is_theme = false;

			// Figure out what the slug is supposed to be.
			if ( isset( $upgrader->skin->options['extra'] ) ) {
				// Set by the auto-install logic.
				$desired_slug = $upgrader->skin->options['extra']['slug'];
			} else if ( ! empty( $basename ) ) {
				/**
				 * If it doesn't end with ".php", it's a theme.
				 *
				 * @author Leo Fajardo (@leorw)
				 * @since 2.2.1
				 */
				$is_theme = ( ! fs_ends_with( $basename, '.php' ) );

				$desired_slug = ( ! $is_theme ) ?
					dirname( $basename ) :
					// Theme slug
					$basename;
			} else {
				// Can't figure out the desired slug, stop the execution.
				return $source;
			}

			if ( is_multisite() ) {
				/**
				 * If we are running in a multisite environment and the product is not network activated,
				 * the instance will not exist anyway. Therefore, try to update the source if necessary
				 * regardless if the Freemius instance of the product exists or not.
				 *
				 * @author Vova Feldman
				 */
			} else if ( ! empty( $basename ) ) {
				$fs = Freemius::get_instance_by_file(
					$basename,
					$is_theme ?
						WP_FS__MODULE_TYPE_THEME :
						WP_FS__MODULE_TYPE_PLUGIN
				);

				if ( ! is_object( $fs ) ) {
					/**
					 * If the Freemius instance does not exist on a non-multisite network environment, it means that:
					 *  1. The product is not powered by Freemius; OR
					 *  2. The product is not activated, therefore, we don't mind if after the update the folder name will change.
					 *
					 * @author Leo Fajardo (@leorw)
					 * @since  2.2.1
					 */
					return $source;
				}
			}

			$subdir_name = untrailingslashit( str_replace( trailingslashit( $remote_source ), '', $source ) );

			if ( ! empty( $subdir_name ) && $subdir_name !== $desired_slug ) {
				$from_path = untrailingslashit( $source );
				$to_path   = trailingslashit( $remote_source ) . $desired_slug;

				if ( true === $GLOBALS['wp_filesystem']->move( $from_path, $to_path ) ) {
					return trailingslashit( $to_path );
				}

				return new WP_Error(
					'rename_failed',
					fs_text_inline( 'The remote plugin package does not contain a folder with the desired slug and renaming did not work.', 'module-package-rename-failure' ),
					array(
						'found'    => $subdir_name,
						'expected' => $desired_slug
					)
				);
			}

			return $source;
		}

		#endregion
	}

```
