<?php /** * A simple set of functions to check our version 1.0 update service. * * @package WordPress * @since 2.3.0 */ /** * Check WordPress version against the newest version. * * The WordPress version, PHP version, and locale is sent. * * Checks against the WordPress server at api.wordpress.org. Will only check * if WordPress isn't installing. * * @since 2.3.0 * * @global string $wp_version Used to check against the newest WordPress version. * @global wpdb $wpdb WordPress database abstraction object. * @global string $wp_local_package Locale code of the package. * * @param array $extra_stats Extra statistics to report to the WordPress.org API. * @param bool $force_check Whether to bypass the transient cache and force a fresh update check. Defaults to false, true if $extra_stats is set. */ function wp_version_check( $extra_stats = array(), $force_check = false ) { global $wpdb, $wp_local_package; if ( wp_installing() ) { return; } // Include an unmodified $wp_version. require ABSPATH . WPINC . '/version.php'; $php_version = phpversion(); $current = get_site_transient( 'update_core' ); $translations = wp_get_installed_translations( 'core' ); // Invalidate the transient when $wp_version changes. if ( is_object( $current ) && $wp_version !== $current->version_checked ) { $current = false; } if ( ! is_object( $current ) ) { $current = new stdClass; $current->updates = array(); $current->version_checked = $wp_version; } if ( ! empty( $extra_stats ) ) { $force_check = true; } // Wait 1 minute between multiple version check requests. $timeout = MINUTE_IN_SECONDS; $time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked ); if ( ! $force_check && $time_not_changed ) { return; } /** * Filters the locale requested for WordPress core translations. * * @since 2.8.0 * * @param string $locale Current locale. */ $locale = apply_filters( 'core_version_check_locale', get_locale() ); // Update last_checked for current to prevent multiple blocking requests if request hangs. $current->last_checked = time(); set_site_transient( 'update_core', $current ); if ( method_exists( $wpdb, 'db_version' ) ) { $mysql_version = preg_replace( '/[^0-9.].*/', '', $wpdb->db_version() ); } else { $mysql_version = 'N/A'; } if ( is_multisite() ) { $user_count = get_user_count(); $num_blogs = get_blog_count(); $wp_install = network_site_url(); $multisite_enabled = 1; } else { $user_count = count_users(); $user_count = $user_count['total_users']; $multisite_enabled = 0; $num_blogs = 1; $wp_install = home_url( '/' ); } $query = array( 'version' => $wp_version, 'php' => $php_version, 'locale' => $locale, 'mysql' => $mysql_version, 'local_package' => isset( $wp_local_package ) ? $wp_local_package : '', 'blogs' => $num_blogs, 'users' => $user_count, 'multisite_enabled' => $multisite_enabled, 'initial_db_version' => get_site_option( 'initial_db_version' ), ); /** * Filters the query arguments sent as part of the core version check. * * WARNING: Changing this data may result in your site not receiving security updates. * Please exercise extreme caution. * * @since 4.9.0 * * @param array $query { * Version check query arguments. * * @type string $version WordPress version number. * @type string $php PHP version number. * @type string $locale The locale to retrieve updates for. * @type string $mysql MySQL version number. * @type string $local_package The value of the $wp_local_package global, when set. * @type int $blogs Number of sites on this WordPress installation. * @type int $users Number of users on this WordPress installation. * @type int $multisite_enabled Whether this WordPress installation uses Multisite. * @type int $initial_db_version Database version of WordPress at time of installation. * } */ $query = apply_filters( 'core_version_check_query_args', $query ); $post_body = array( 'translations' => wp_json_encode( $translations ), ); if ( is_array( $extra_stats ) ) { $post_body = array_merge( $post_body, $extra_stats ); } // Allow for WP_AUTO_UPDATE_CORE to specify beta/RC/development releases. if ( defined( 'WP_AUTO_UPDATE_CORE' ) && in_array( WP_AUTO_UPDATE_CORE, array( 'beta', 'rc', 'development', 'branch-development' ), true ) ) { $query['channel'] = WP_AUTO_UPDATE_CORE; } $url = 'http://api.wordpress.org/core/version-check/1.7/?' . http_build_query( $query, null, '&' ); $http_url = $url; $ssl = wp_http_supports( array( 'ssl' ) ); if ( $ssl ) { $url = set_url_scheme( $url, 'https' ); } $doing_cron = wp_doing_cron(); $options = array( 'timeout' => $doing_cron ? 30 : 3, 'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url( '/' ), 'headers' => array( 'wp_install' => $wp_install, 'wp_blog' => home_url( '/' ), ), 'body' => $post_body, ); $response = wp_remote_post( $url, $options ); if ( $ssl && is_wp_error( $response ) ) { trigger_error( sprintf( /* translators: %s: Support forums URL. */ __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the <a href="%s">support forums</a>.' ), __( 'https://wordpress.org/support/forums/' ) ) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ), headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE ); $response = wp_remote_post( $http_url, $options ); } if ( is_wp_error( $response ) || 200 !== wp_remote_retrieve_response_code( $response ) ) { return; } $body = trim( wp_remote_retrieve_body( $response ) ); $body = json_decode( $body, true ); if ( ! is_array( $body ) || ! isset( $body['offers'] ) ) { return; } $offers = $body['offers']; foreach ( $offers as &$offer ) { foreach ( $offer as $offer_key => $value ) { if ( 'packages' === $offer_key ) { $offer['packages'] = (object) array_intersect_key( array_map( 'esc_url', $offer['packages'] ), array_fill_keys( array( 'full', 'no_content', 'new_bundled', 'partial', 'rollback' ), '' ) ); } elseif ( 'download' === $offer_key ) { $offer['download'] = esc_url( $value ); } else { $offer[ $offer_key ] = esc_html( $value ); } } $offer = (object) array_intersect_key( $offer, array_fill_keys( array( 'response', 'download', 'locale', 'packages', 'current', 'version', 'php_version', 'mysql_version', 'new_bundled', 'partial_version', 'notify_email', 'support_email', 'new_files', ), '' ) ); } $updates = new stdClass(); $updates->updates = $offers; $updates->last_checked = time(); $updates->version_checked = $wp_version; if ( isset( $body['translations'] ) ) { $updates->translations = $body['translations']; } set_site_transient( 'update_core', $updates ); if ( ! empty( $body['ttl'] ) ) { $ttl = (int) $body['ttl']; if ( $ttl && ( time() + $ttl < wp_next_scheduled( 'wp_version_check' ) ) ) { // Queue an event to re-run the update check in $ttl seconds. wp_schedule_single_event( time() + $ttl, 'wp_version_check' ); } } // Trigger background updates if running non-interactively, and we weren't called from the update handler. if ( $doing_cron && ! doing_action( 'wp_maybe_auto_update' ) ) { /** * Fires during wp_cron, starting the auto-update process. * * @since 3.9.0 */ do_action( 'wp_maybe_auto_update' ); } } /** * Checks for available updates to plugins based on the latest versions hosted on WordPress.org. * * Despite its name this function does not actually perform any updates, it only checks for available updates. * * A list of all plugins installed is sent to WP, along with the site locale. * * Checks against the WordPress server at api.wordpress.org. Will only check * if WordPress isn't installing. * * @since 2.3.0 * * @global string $wp_version The WordPress version string. * * @param array $extra_stats Extra statistics to report to the WordPress.org API. */ function wp_update_plugins( $extra_stats = array() ) { if ( wp_installing() ) { return; } // Include an unmodified $wp_version. require ABSPATH . WPINC . '/version.php'; // If running blog-side, bail unless we've not checked in the last 12 hours. if ( ! function_exists( 'get_plugins' ) ) { require_once ABSPATH . 'wp-admin/includes/plugin.php'; } $plugins = get_plugins(); $translations = wp_get_installed_translations( 'plugins' ); $active = get_option( 'active_plugins', array() ); $current = get_site_transient( 'update_plugins' ); if ( ! is_object( $current ) ) { $current = new stdClass; } $updates = new stdClass; $updates->last_checked = time(); $updates->response = array(); $updates->translations = array(); $updates->no_update = array(); $doing_cron = wp_doing_cron(); // Check for update on a different schedule, depending on the page. switch ( current_filter() ) { case 'upgrader_process_complete': $timeout = 0; break; case 'load-update-core.php': $timeout = MINUTE_IN_SECONDS; break; case 'load-plugins.php': case 'load-update.php': $timeout = HOUR_IN_SECONDS; break; default: if ( $doing_cron ) { $timeout = 2 * HOUR_IN_SECONDS; } else { $timeout = 12 * HOUR_IN_SECONDS; } } $time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked ); if ( $time_not_changed && ! $extra_stats ) { $plugin_changed = false; foreach ( $plugins as $file => $p ) { $updates->checked[ $file ] = $p['Version']; if ( ! isset( $current->checked[ $file ] ) || (string) $current->checked[ $file ] !== (string) $p['Version'] ) { $plugin_changed = true; } } if ( isset( $current->response ) && is_array( $current->response ) ) { foreach ( $current->response as $plugin_file => $update_details ) { if ( ! isset( $plugins[ $plugin_file ] ) ) { $plugin_changed = true; break; } } } // Bail if we've checked recently and if nothing has changed. if ( ! $plugin_changed ) { return; } } // Update last_checked for current to prevent multiple blocking requests if request hangs. $current->last_checked = time(); set_site_transient( 'update_plugins', $current ); $to_send = compact( 'plugins', 'active' ); $locales = array_values( get_available_languages() ); /** * Filters the locales requested for plugin translations. * * @since 3.7.0 * @since 4.5.0 The default value of the `$locales` parameter changed to include all locales. * * @param array $locales Plugin locales. Default is all available locales of the site. */ $locales = apply_filters( 'plugins_update_check_locales', $locales ); $locales = array_unique( $locales ); if ( $doing_cron ) { $timeout = 30; } else { // Three seconds, plus one extra second for every 10 plugins. $timeout = 3 + (int) ( count( $plugins ) / 10 ); } $options = array( 'timeout' => $timeout, 'body' => array( 'plugins' => wp_json_encode( $to_send ), 'translations' => wp_json_encode( $translations ), 'locale' => wp_json_encode( $locales ), 'all' => wp_json_encode( true ), ), 'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url( '/' ), ); if ( $extra_stats ) { $options['body']['update_stats'] = wp_json_encode( $extra_stats ); } $url = 'http://api.wordpress.org/plugins/update-check/1.1/'; $http_url = $url; $ssl = wp_http_supports( array( 'ssl' ) ); if ( $ssl ) { $url = set_url_scheme( $url, 'https' ); } $raw_response = wp_remote_post( $url, $options ); if ( $ssl && is_wp_error( $raw_response ) ) { trigger_error( sprintf( /* translators: %s: Support forums URL. */ __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the <a href="%s">support forums</a>.' ), __( 'https://wordpress.org/support/forums/' ) ) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ), headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE ); $raw_response = wp_remote_post( $http_url, $options ); } if ( is_wp_error( $raw_response ) || 200 !== wp_remote_retrieve_response_code( $raw_response ) ) { return; } $response = json_decode( wp_remote_retrieve_body( $raw_response ), true ); if ( $response && is_array( $response ) ) { $updates->response = $response['plugins']; $updates->translations = $response['translations']; $updates->no_update = $response['no_update']; } // Support updates for any plugins using the `Update URI` header field. foreach ( $plugins as $plugin_file => $plugin_data ) { if ( ! $plugin_data['UpdateURI'] || isset( $updates->response[ $plugin_file ] ) ) { continue; } $hostname = wp_parse_url( esc_url_raw( $plugin_data['UpdateURI'] ), PHP_URL_HOST ); /** * Filters the update response for a given plugin hostname. * * The dynamic portion of the hook name, `$hostname`, refers to the hostname * of the URI specified in the `Update URI` header field. * * @since 5.8.0 * * @param array|false $update { * The plugin update data with the latest details. Default false. * * @type string $id Optional. ID of the plugin for update purposes, should be a URI * specified in the `Update URI` header field. * @type string $slug Slug of the plugin. * @type string $version The version of the plugin. * @type string $url The URL for details of the plugin. * @type string $package Optional. The update ZIP for the plugin. * @type string $tested Optional. The version of WordPress the plugin is tested against. * @type string $requires_php Optional. The version of PHP which the plugin requires. * @type bool $autoupdate Optional. Whether the plugin should automatically update. * @type array $icons Optional. Array of plugin icons. * @type array $banners Optional. Array of plugin banners. * @type array $banners_rtl Optional. Array of plugin RTL banners. * @type array $translations { * Optional. List of translation updates for the plugin. * * @type string $language The language the translation update is for. * @type string $version The version of the plugin this translation is for. * This is not the version of the language file. * @type string $updated The update timestamp of the translation file. * Should be a date in the `YYYY-MM-DD HH:MM:SS` format. * @type string $package The ZIP location containing the translation update. * @type string $autoupdate Whether the translation should be automatically installed. * } * } * @param array $plugin_data Plugin headers. * @param string $plugin_file Plugin filename. * @param array $locales Installed locales to look translations for. */ $update = apply_filters( "update_plugins_{$hostname}", false, $plugin_data, $plugin_file, $locales ); if ( ! $update ) { continue; } $update = (object) $update; // Is it valid? We require at least a version. if ( ! isset( $update->version ) ) { continue; } // These should remain constant. $update->id = $plugin_data['UpdateURI']; $update->plugin = $plugin_file; // WordPress needs the version field specified as 'new_version'. if ( ! isset( $update->new_version ) ) { $update->new_version = $update->version; } // Handle any translation updates. if ( ! empty( $update->translations ) ) { foreach ( $update->translations as $translation ) { if ( isset( $translation['language'], $translation['package'] ) ) { $translation['type'] = 'plugin'; $translation['slug'] = isset( $update->slug ) ? $update->slug : $update->id; $updates->translations[] = $translation; } } } unset( $updates->no_update[ $plugin_file ], $updates->response[ $plugin_file ] ); if ( version_compare( $update->new_version, $plugin_data['Version'], '>' ) ) { $updates->response[ $plugin_file ] = $update; } else { $updates->no_update[ $plugin_file ] = $update; } } $sanitize_plugin_update_payload = function( &$item ) { $item = (object) $item; unset( $item->translations, $item->compatibility ); return $item; }; array_walk( $updates->response, $sanitize_plugin_update_payload ); array_walk( $updates->no_update, $sanitize_plugin_update_payload ); set_site_transient( 'update_plugins', $updates ); } /** * Checks for available updates to themes based on the latest versions hosted on WordPress.org. * * Despite its name this function does not actually perform any updates, it only checks for available updates. * * A list of all themes installed is sent to WP, along with the site locale. * * Checks against the WordPress server at api.wordpress.org. Will only check * if WordPress isn't installing. * * @since 2.7.0 * * @global string $wp_version The WordPress version string. * * @param array $extra_stats Extra statistics to report to the WordPress.org API. */ function wp_update_themes( $extra_stats = array() ) { if ( wp_installing() ) { return; } // Include an unmodified $wp_version. require ABSPATH . WPINC . '/version.php'; $installed_themes = wp_get_themes(); $translations = wp_get_installed_translations( 'themes' ); $last_update = get_site_transient( 'update_themes' ); if ( ! is_object( $last_update ) ) { $last_update = new stdClass; } $themes = array(); $checked = array(); $request = array(); // Put slug of current theme into request. $request['active'] = get_option( 'stylesheet' ); foreach ( $installed_themes as $theme ) { $checked[ $theme->get_stylesheet() ] = $theme->get( 'Version' ); $themes[ $theme->get_stylesheet() ] = array( 'Name' => $theme->get( 'Name' ), 'Title' => $theme->get( 'Name' ), 'Version' => $theme->get( 'Version' ), 'Author' => $theme->get( 'Author' ), 'Author URI' => $theme->get( 'AuthorURI' ), 'Template' => $theme->get_template(), 'Stylesheet' => $theme->get_stylesheet(), ); } $doing_cron = wp_doing_cron(); // Check for update on a different schedule, depending on the page. switch ( current_filter() ) { case 'upgrader_process_complete': $timeout = 0; break; case 'load-update-core.php': $timeout = MINUTE_IN_SECONDS; break; case 'load-themes.php': case 'load-update.php': $timeout = HOUR_IN_SECONDS; break; default: if ( $doing_cron ) { $timeout = 2 * HOUR_IN_SECONDS; } else { $timeout = 12 * HOUR_IN_SECONDS; } } $time_not_changed = isset( $last_update->last_checked ) && $timeout > ( time() - $last_update->last_checked ); if ( $time_not_changed && ! $extra_stats ) { $theme_changed = false; foreach ( $checked as $slug => $v ) { if ( ! isset( $last_update->checked[ $slug ] ) || (string) $last_update->checked[ $slug ] !== (string) $v ) { $theme_changed = true; } } if ( isset( $last_update->response ) && is_array( $last_update->response ) ) { foreach ( $last_update->response as $slug => $update_details ) { if ( ! isset( $checked[ $slug ] ) ) { $theme_changed = true; break; } } } // Bail if we've checked recently and if nothing has changed. if ( ! $theme_changed ) { return; } } // Update last_checked for current to prevent multiple blocking requests if request hangs. $last_update->last_checked = time(); set_site_transient( 'update_themes', $last_update ); $request['themes'] = $themes; $locales = array_values( get_available_languages() ); /** * Filters the locales requested for theme translations. * * @since 3.7.0 * @since 4.5.0 The default value of the `$locales` parameter changed to include all locales. * * @param array $locales Theme locales. Default is all available locales of the site. */ $locales = apply_filters( 'themes_update_check_locales', $locales ); $locales = array_unique( $locales ); if ( $doing_cron ) { $timeout = 30; } else { // Three seconds, plus one extra second for every 10 themes. $timeout = 3 + (int) ( count( $themes ) / 10 ); } $options = array( 'timeout' => $timeout, 'body' => array( 'themes' => wp_json_encode( $request ), 'translations' => wp_json_encode( $translations ), 'locale' => wp_json_encode( $locales ), ), 'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url( '/' ), ); if ( $extra_stats ) { $options['body']['update_stats'] = wp_json_encode( $extra_stats ); } $url = 'http://api.wordpress.org/themes/update-check/1.1/'; $http_url = $url; $ssl = wp_http_supports( array( 'ssl' ) ); if ( $ssl ) { $url = set_url_scheme( $url, 'https' ); } $raw_response = wp_remote_post( $url, $options ); if ( $ssl && is_wp_error( $raw_response ) ) { trigger_error( sprintf( /* translators: %s: Support forums URL. */ __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the <a href="%s">support forums</a>.' ), __( 'https://wordpress.org/support/forums/' ) ) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ), headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE ); $raw_response = wp_remote_post( $http_url, $options ); } if ( is_wp_error( $raw_response ) || 200 !== wp_remote_retrieve_response_code( $raw_response ) ) { return; } $new_update = new stdClass; $new_update->last_checked = time(); $new_update->checked = $checked; $response = json_decode( wp_remote_retrieve_body( $raw_response ), true ); if ( is_array( $response ) ) { $new_update->response = $response['themes']; $new_update->no_update = $response['no_update']; $new_update->translations = $response['translations']; } set_site_transient( 'update_themes', $new_update ); } /** * Performs WordPress automatic background updates. * * Updates WordPress core plus any plugins and themes that have automatic updates enabled. * * @since 3.7.0 */ function wp_maybe_auto_update() { include_once ABSPATH . 'wp-admin/includes/admin.php'; require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php'; $upgrader = new WP_Automatic_Updater; $upgrader->run(); } /** * Retrieves a list of all language updates available. * * @since 3.7.0 * * @return object[] Array of translation objects that have available updates. */ function wp_get_translation_updates() { $updates = array(); $transients = array( 'update_core' => 'core', 'update_plugins' => 'plugin', 'update_themes' => 'theme', ); foreach ( $transients as $transient => $type ) { $transient = get_site_transient( $transient ); if ( empty( $transient->translations ) ) { continue; } foreach ( $transient->translations as $translation ) { $updates[] = (object) $translation; } } return $updates; } /** * Collect counts and UI strings for available updates * * @since 3.3.0 * * @return array */ function wp_get_update_data() { $counts = array( 'plugins' => 0, 'themes' => 0, 'wordpress' => 0, 'translations' => 0, ); $plugins = current_user_can( 'update_plugins' ); if ( $plugins ) { $update_plugins = get_site_transient( 'update_plugins' ); if ( ! empty( $update_plugins->response ) ) { $counts['plugins'] = count( $update_plugins->response ); } } $themes = current_user_can( 'update_themes' ); if ( $themes ) { $update_themes = get_site_transient( 'update_themes' ); if ( ! empty( $update_themes->response ) ) { $counts['themes'] = count( $update_themes->response ); } } $core = current_user_can( 'update_core' ); if ( $core && function_exists( 'get_core_updates' ) ) { $update_wordpress = get_core_updates( array( 'dismissed' => false ) ); if ( ! empty( $update_wordpress ) && ! in_array( $update_wordpress[0]->response, array( 'development', 'latest' ), true ) && current_user_can( 'update_core' ) ) { $counts['wordpress'] = 1; } } if ( ( $core || $plugins || $themes ) && wp_get_translation_updates() ) { $counts['translations'] = 1; } $counts['total'] = $counts['plugins'] + $counts['themes'] + $counts['wordpress'] + $counts['translations']; $titles = array(); if ( $counts['wordpress'] ) { /* translators: %d: Number of available WordPress updates. */ $titles['wordpress'] = sprintf( __( '%d WordPress Update' ), $counts['wordpress'] ); } if ( $counts['plugins'] ) { /* translators: %d: Number of available plugin updates. */ $titles['plugins'] = sprintf( _n( '%d Plugin Update', '%d Plugin Updates', $counts['plugins'] ), $counts['plugins'] ); } if ( $counts['themes'] ) { /* translators: %d: Number of available theme updates. */ $titles['themes'] = sprintf( _n( '%d Theme Update', '%d Theme Updates', $counts['themes'] ), $counts['themes'] ); } if ( $counts['translations'] ) { $titles['translations'] = __( 'Translation Updates' ); } $update_title = $titles ? esc_attr( implode( ', ', $titles ) ) : ''; $update_data = array( 'counts' => $counts, 'title' => $update_title, ); /** * Filters the returned array of update data for plugins, themes, and WordPress core. * * @since 3.5.0 * * @param array $update_data { * Fetched update data. * * @type array $counts An array of counts for available plugin, theme, and WordPress updates. * @type string $update_title Titles of available updates. * } * @param array $titles An array of update counts and UI strings for available updates. */ return apply_filters( 'wp_get_update_data', $update_data, $titles ); } /** * Determines whether core should be updated. * * @since 2.8.0 * * @global string $wp_version The WordPress version string. */ function _maybe_update_core() { // Include an unmodified $wp_version. require ABSPATH . WPINC . '/version.php'; $current = get_site_transient( 'update_core' ); if ( isset( $current->last_checked, $current->version_checked ) && 12 * HOUR_IN_SECONDS > ( time() - $current->last_checked ) && $current->version_checked === $wp_version ) { return; } wp_version_check(); } /** * Check the last time plugins were run before checking plugin versions. * * This might have been backported to WordPress 2.6.1 for performance reasons. * This is used for the wp-admin to check only so often instead of every page * load. * * @since 2.7.0 * @access private */ function _maybe_update_plugins() { $current = get_site_transient( 'update_plugins' ); if ( isset( $current->last_checked ) && 12 * HOUR_IN_SECONDS > ( time() - $current->last_checked ) ) { return; } wp_update_plugins(); } /** * Check themes versions only after a duration of time. * * This is for performance reasons to make sure that on the theme version * checker is not run on every page load. * * @since 2.7.0 * @access private */ function _maybe_update_themes() { $current = get_site_transient( 'update_themes' ); if ( isset( $current->last_checked ) && 12 * HOUR_IN_SECONDS > ( time() - $current->last_checked ) ) { return; } wp_update_themes(); } /** * Schedule core, theme, and plugin update checks. * * @since 3.1.0 */ function wp_schedule_update_checks() { if ( ! wp_next_scheduled( 'wp_version_check' ) && ! wp_installing() ) { wp_schedule_event( time(), 'twicedaily', 'wp_version_check' ); } if ( ! wp_next_scheduled( 'wp_update_plugins' ) && ! wp_installing() ) { wp_schedule_event( time(), 'twicedaily', 'wp_update_plugins' ); } if ( ! wp_next_scheduled( 'wp_update_themes' ) && ! wp_installing() ) { wp_schedule_event( time(), 'twicedaily', 'wp_update_themes' ); } } /** * Clear existing update caches for plugins, themes, and core. * * @since 4.1.0 */ function wp_clean_update_cache() { if ( function_exists( 'wp_clean_plugins_cache' ) ) { wp_clean_plugins_cache(); } else { delete_site_transient( 'update_plugins' ); } wp_clean_themes_cache(); delete_site_transient( 'update_core' ); } if ( ( ! is_main_site() && ! is_network_admin() ) || wp_doing_ajax() ) { return; } add_action( 'admin_init', '_maybe_update_core' ); add_action( 'wp_version_check', 'wp_version_check' ); add_action( 'load-plugins.php', 'wp_update_plugins' ); add_action( 'load-update.php', 'wp_update_plugins' ); add_action( 'load-update-core.php', 'wp_update_plugins' ); add_action( 'admin_init', '_maybe_update_plugins' ); add_action( 'wp_update_plugins', 'wp_update_plugins' ); add_action( 'load-themes.php', 'wp_update_themes' ); add_action( 'load-update.php', 'wp_update_themes' ); add_action( 'load-update-core.php', 'wp_update_themes' ); add_action( 'admin_init', '_maybe_update_themes' ); add_action( 'wp_update_themes', 'wp_update_themes' ); add_action( 'update_option_WPLANG', 'wp_clean_update_cache', 10, 0 ); add_action( 'wp_maybe_auto_update', 'wp_maybe_auto_update' ); add_action( 'init', 'wp_schedule_update_checks' );