/wp-includes/update.php
PHP | 449 lines | 286 code | 77 blank | 86 comment | 77 complexity | 6160c26bd878ceafd823212c0b7dbd7b MD5 | raw file
- <?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 server. Will only check if WordPress
- * isn't installing.
- *
- * @package WordPress
- * @since 2.3.0
- * @uses $wp_version Used to check against the newest WordPress version.
- *
- * @return mixed Returns null if update is unsupported. Returns false if check is too soon.
- */
- function wp_version_check() {
- if ( defined('WP_INSTALLING') )
- return;
- global $wpdb, $wp_local_package;
- include ABSPATH . WPINC . '/version.php'; // include an unmodified $wp_version
- $php_version = phpversion();
- $current = get_site_transient( 'update_core' );
- if ( ! is_object($current) ) {
- $current = new stdClass;
- $current->updates = array();
- $current->version_checked = $wp_version;
- }
- // Wait 60 seconds between multiple version check requests
- $timeout = 60;
- $time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );
- if ( $time_not_changed )
- return false;
- $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
- );
- $url = 'http://api.wordpress.org/core/version-check/1.6/?' . http_build_query( $query, null, '&' );
- $options = array(
- 'timeout' => ( ( defined('DOING_CRON') && DOING_CRON ) ? 30 : 3 ),
- 'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url( '/' ),
- 'headers' => array(
- 'wp_install' => $wp_install,
- 'wp_blog' => home_url( '/' )
- )
- );
- $response = wp_remote_get($url, $options);
- if ( is_wp_error( $response ) || 200 != wp_remote_retrieve_response_code( $response ) )
- return false;
- $body = trim( wp_remote_retrieve_body( $response ) );
- $body = maybe_unserialize( $body );
- if ( ! is_array( $body ) || ! isset( $body['offers'] ) )
- return false;
- $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' ), '' ) );
- 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', 'php_version', 'mysql_version', 'new_bundled', 'partial_version' ), '' ) );
- }
- $updates = new stdClass();
- $updates->updates = $offers;
- $updates->last_checked = time();
- $updates->version_checked = $wp_version;
- set_site_transient( 'update_core', $updates);
- }
- /**
- * Check plugin versions against the latest versions hosted on WordPress.org.
- *
- * The WordPress version, PHP version, and Locale is sent along with a list of
- * all plugins installed. Checks against the WordPress server at
- * api.wordpress.org. Will only check if WordPress isn't installing.
- *
- * @package WordPress
- * @since 2.3.0
- * @uses $wp_version Used to notify the WordPress version.
- *
- * @return mixed Returns null if update is unsupported. Returns false if check is too soon.
- */
- function wp_update_plugins() {
- include ABSPATH . WPINC . '/version.php'; // include an unmodified $wp_version
- if ( defined('WP_INSTALLING') )
- return false;
- // 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();
- $active = get_option( 'active_plugins', array() );
- $current = get_site_transient( 'update_plugins' );
- if ( ! is_object($current) )
- $current = new stdClass;
- $new_option = new stdClass;
- $new_option->last_checked = time();
- // Check for update on a different schedule, depending on the page.
- switch ( current_filter() ) {
- case 'load-update-core.php' :
- $timeout = 60; // 1 min
- break;
- case 'load-plugins.php' :
- case 'load-update.php' :
- $timeout = 3600; // 1 hour
- break;
- default :
- $timeout = 43200; // 12 hours
- }
- $time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );
- if ( $time_not_changed ) {
- $plugin_changed = false;
- foreach ( $plugins as $file => $p ) {
- $new_option->checked[ $file ] = $p['Version'];
- if ( !isset( $current->checked[ $file ] ) || strval($current->checked[ $file ]) !== strval($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 false;
- }
- // 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 = (object) compact('plugins', 'active');
- $options = array(
- 'timeout' => ( ( defined('DOING_CRON') && DOING_CRON ) ? 30 : 3),
- 'body' => array( 'plugins' => serialize( $to_send ) ),
- 'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
- );
- $raw_response = wp_remote_post('http://api.wordpress.org/plugins/update-check/1.0/', $options);
- if ( is_wp_error( $raw_response ) || 200 != wp_remote_retrieve_response_code( $raw_response ) )
- return false;
- $response = maybe_unserialize( wp_remote_retrieve_body( $raw_response ) );
- if ( is_array( $response ) )
- $new_option->response = $response;
- else
- $new_option->response = array();
- set_site_transient( 'update_plugins', $new_option );
- }
- /**
- * Check theme versions against the latest versions hosted on WordPress.org.
- *
- * A list of all themes installed in sent to WP. Checks against the
- * WordPress server at api.wordpress.org. Will only check if WordPress isn't
- * installing.
- *
- * @package WordPress
- * @since 2.7.0
- * @uses $wp_version Used to notify the WordPress version.
- *
- * @return mixed Returns null if update is unsupported. Returns false if check is too soon.
- */
- function wp_update_themes() {
- include ABSPATH . WPINC . '/version.php'; // include an unmodified $wp_version
- if ( defined( 'WP_INSTALLING' ) )
- return false;
- $installed_themes = wp_get_themes();
- $last_update = get_site_transient( 'update_themes' );
- if ( ! is_object($last_update) )
- $last_update = new stdClass;
- $themes = array();
- $checked = array();
- // Put slug of current theme into request.
- $themes['current_theme'] = 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(),
- );
- }
- // Check for update on a different schedule, depending on the page.
- switch ( current_filter() ) {
- case 'load-update-core.php' :
- $timeout = 60; // 1 min
- break;
- case 'load-themes.php' :
- case 'load-update.php' :
- $timeout = 3600; // 1 hour
- break;
- default :
- $timeout = 43200; // 12 hours
- }
- $time_not_changed = isset( $last_update->last_checked ) && $timeout > ( time( ) - $last_update->last_checked );
- if ( $time_not_changed ) {
- $theme_changed = false;
- foreach ( $checked as $slug => $v ) {
- if ( !isset( $last_update->checked[ $slug ] ) || strval($last_update->checked[ $slug ]) !== strval($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 false;
- }
- // 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 );
- $options = array(
- 'timeout' => ( ( defined('DOING_CRON') && DOING_CRON ) ? 30 : 3),
- 'body' => array( 'themes' => serialize( $themes ) ),
- 'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
- );
- $raw_response = wp_remote_post( 'http://api.wordpress.org/themes/update-check/1.0/', $options );
- if ( is_wp_error( $raw_response ) || 200 != wp_remote_retrieve_response_code( $raw_response ) )
- return false;
- $new_update = new stdClass;
- $new_update->last_checked = time( );
- $new_update->checked = $checked;
- $response = maybe_unserialize( wp_remote_retrieve_body( $raw_response ) );
- if ( is_array( $response ) )
- $new_update->response = $response;
- set_site_transient( 'update_themes', $new_update );
- }
- /*
- * 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 );
- if ( current_user_can( 'update_plugins' ) ) {
- $update_plugins = get_site_transient( 'update_plugins' );
- if ( ! empty( $update_plugins->response ) )
- $counts['plugins'] = count( $update_plugins->response );
- }
- if ( current_user_can( 'update_themes' ) ) {
- $update_themes = get_site_transient( 'update_themes' );
- if ( ! empty( $update_themes->response ) )
- $counts['themes'] = count( $update_themes->response );
- }
- if ( function_exists( 'get_core_updates' ) && current_user_can( 'update_core' ) ) {
- $update_wordpress = get_core_updates( array('dismissed' => false) );
- if ( ! empty( $update_wordpress ) && ! in_array( $update_wordpress[0]->response, array('development', 'latest') ) && current_user_can('update_core') )
- $counts['wordpress'] = 1;
- }
- $counts['total'] = $counts['plugins'] + $counts['themes'] + $counts['wordpress'];
- $update_title = array();
- if ( $counts['wordpress'] )
- $update_title[] = sprintf(__('%d WordPress Update'), $counts['wordpress']);
- if ( $counts['plugins'] )
- $update_title[] = sprintf(_n('%d Plugin Update', '%d Plugin Updates', $counts['plugins']), $counts['plugins']);
- if ( $counts['themes'] )
- $update_title[] = sprintf(_n('%d Theme Update', '%d Theme Updates', $counts['themes']), $counts['themes']);
- $update_title = ! empty( $update_title ) ? esc_attr( implode( ', ', $update_title ) ) : '';
- return array( 'counts' => $counts, 'title' => $update_title );
- }
- function _maybe_update_core() {
- include ABSPATH . WPINC . '/version.php'; // include an unmodified $wp_version
- $current = get_site_transient( 'update_core' );
- if ( isset( $current->last_checked ) &&
- 43200 > ( time() - $current->last_checked ) &&
- isset( $current->version_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 ) && 43200 > ( 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 ) && 43200 > ( 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') && !defined('WP_INSTALLING') )
- wp_schedule_event(time(), 'twicedaily', 'wp_version_check');
- if ( !wp_next_scheduled('wp_update_plugins') && !defined('WP_INSTALLING') )
- wp_schedule_event(time(), 'twicedaily', 'wp_update_plugins');
- if ( !wp_next_scheduled('wp_update_themes') && !defined('WP_INSTALLING') )
- wp_schedule_event(time(), 'twicedaily', 'wp_update_themes');
- }
- if ( ( ! is_main_site() && ! is_network_admin() ) || ( defined( 'DOING_AJAX' ) && 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('init', 'wp_schedule_update_checks');