WordPress/wp-includes/update.php
Adam Silverstein 0bbca2a3ab Upgrade/Install: track php extensions and image library support for WebP and AVIF.
Add the loaded php extensions as well as whether the server's image libraries support WebP and AVIF image formats to the data payload sent during upgrade checks. Collecting this data with the WordPress.org API will help the project make more data driven decisions about feature support. Note that all data can still be filtered with the `core_version_check_query_args` filter for privacy reasons.

Props dd32, SergeyBiryukov, mikeschroder, pbiron. 
Fixes #48116.


Built from https://develop.svn.wordpress.org/trunk@53753


git-svn-id: http://core.svn.wordpress.org/trunk@53312 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2022-07-21 20:22:09 +00:00

1016 lines
30 KiB
PHP

<?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 = PHP_VERSION;
$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() ) {
$num_blogs = get_blog_count();
$wp_install = network_site_url();
$multisite_enabled = 1;
} else {
$multisite_enabled = 0;
$num_blogs = 1;
$wp_install = home_url( '/' );
}
$extensions = get_loaded_extensions();
sort( $extensions, SORT_STRING | SORT_FLAG_CASE );
$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' => get_user_count(),
'multisite_enabled' => $multisite_enabled,
'initial_db_version' => get_site_option( 'initial_db_version' ),
'extensions' => array_combine( $extensions, array_map( 'phpversion', $extensions ) ),
'platform_flags' => array(
'os' => PHP_OS,
'bits' => PHP_INT_SIZE === 4 ? 32 : 64,
),
'image_support' => array(),
);
if ( function_exists( 'gd_info' ) ) {
$gd_info = gd_info();
// Filter to supported values.
$gd_info = array_filter( $gd_info );
// Add data for GD WebP and AVIF support.
$query['image_support']['gd'] = array_keys(
array_filter(
array(
'webp' => isset( $gd_info['WebP Support'] ),
'avif' => isset( $gd_info['AVIF Support'] ),
)
)
);
}
if ( class_exists( 'Imagick' ) ) {
// Add data for Imagick WebP and AVIF support.
$query['image_support']['imagick'] = array_keys(
array_filter(
array(
'webp' => ! empty( Imagick::queryFormats( 'WEBP' ) ),
'avif' => ! empty( Imagick::queryFormats( 'AVIF' ) ),
)
)
);
}
/**
* 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, '', '&' );
$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( sanitize_url( $plugin_data['UpdateURI'] ), PHP_URL_HOST );
/**
* Filters the update response for a given plugin hostname.
*
* The dynamic portion of the hook name, `$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;
}
}
$sanitize_plugin_update_payload = static function( &$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 active 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' );