angelovcom.net

update.php (30037B)

---

 <?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&#8217;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&#8217;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&#8217;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' );