%s
%s
', __( 'PHP modules perform most of the tasks on the server that make your site run. Any changes to these must be made by your server administrator.' ), sprintf( /* translators: 1: Link to the hosting group page about recommended PHP modules. 2: Additional link attributes. 3: Accessibility text. */ __( 'The WordPress Hosting Team maintains a list of those modules, both recommended and required, in the team handbook%3$s.' ), /* translators: Localized team handbook, if one exists. */ esc_url( __( 'https://make.wordpress.org/hosting/handbook/handbook/server-environment/#php-extensions' ) ), 'target="_blank" rel="noopener"', sprintf( ' %s', /* translators: Hidden accessibility text. */ __( '(opens in a new tab)' ) ) ) ), 'actions' => '', 'test' => 'php_extensions', ); $modules = array( 'curl' => array( 'function' => 'curl_version', 'required' => false, ), 'dom' => array( 'class' => 'DOMNode', 'required' => false, ), 'exif' => array( 'function' => 'exif_read_data', 'required' => false, ), 'fileinfo' => array( 'function' => 'finfo_file', 'required' => false, ), 'hash' => array( 'function' => 'hash', 'required' => false, ), 'imagick' => array( 'extension' => 'imagick', 'required' => false, ), 'json' => array( 'function' => 'json_last_error', 'required' => true, ), 'mbstring' => array( 'function' => 'mb_check_encoding', 'required' => false, ), 'mysqli' => array( 'function' => 'mysqli_connect', 'required' => false, ), 'libsodium' => array( 'constant' => 'SODIUM_LIBRARY_VERSION', 'required' => false, 'php_bundled_version' => '7.2.0', ), 'openssl' => array( 'function' => 'openssl_encrypt', 'required' => false, ), 'pcre' => array( 'function' => 'preg_match', 'required' => false, ), 'mod_xml' => array( 'extension' => 'libxml', 'required' => false, ), 'zip' => array( 'class' => 'ZipArchive', 'required' => false, ), 'filter' => array( 'function' => 'filter_list', 'required' => false, ), 'gd' => array( 'extension' => 'gd', 'required' => false, 'fallback_for' => 'imagick', ), 'iconv' => array( 'function' => 'iconv', 'required' => false, ), 'intl' => array( 'extension' => 'intl', 'required' => false, ), 'mcrypt' => array( 'extension' => 'mcrypt', 'required' => false, 'fallback_for' => 'libsodium', ), 'simplexml' => array( 'extension' => 'simplexml', 'required' => false, 'fallback_for' => 'mod_xml', ), 'xmlreader' => array( 'extension' => 'xmlreader', 'required' => false, 'fallback_for' => 'mod_xml', ), 'zlib' => array( 'extension' => 'zlib', 'required' => false, 'fallback_for' => 'zip', ), ); /** * Filters the array representing all the modules we wish to test for. * * @since 5.2.0 * @since 5.3.0 The `$constant` and `$class` parameters were added. * * @param array $modules { * An associative array of modules to test for. * * @type array ...$0 { * An associative array of module properties used during testing. * One of either `$function` or `$extension` must be provided, or they will fail by default. * * @type string $function Optional. A function name to test for the existence of. * @type string $extension Optional. An extension to check if is loaded in PHP. * @type string $constant Optional. A constant name to check for to verify an extension exists. * @type string $class Optional. A class name to check for to verify an extension exists. * @type bool $required Is this a required feature or not. * @type string $fallback_for Optional. The module this module replaces as a fallback. * } * } */ $modules = apply_filters( 'site_status_test_php_modules', $modules ); $failures = array(); foreach ( $modules as $library => $module ) { $extension_name = ( isset( $module['extension'] ) ? $module['extension'] : null ); $function_name = ( isset( $module['function'] ) ? $module['function'] : null ); $constant_name = ( isset( $module['constant'] ) ? $module['constant'] : null ); $class_name = ( isset( $module['class'] ) ? $module['class'] : null ); // If this module is a fallback for another function, check if that other function passed. if ( isset( $module['fallback_for'] ) ) { /* * If that other function has a failure, mark this module as required for usual operations. * If that other function hasn't failed, skip this test as it's only a fallback. */ if ( isset( $failures[ $module['fallback_for'] ] ) ) { $module['required'] = true; } else { continue; } } if ( ! $this->test_php_extension_availability( $extension_name, $function_name, $constant_name, $class_name ) && ( ! isset( $module['php_bundled_version'] ) || version_compare( PHP_VERSION, $module['php_bundled_version'], '<' ) ) ) { if ( $module['required'] ) { $result['status'] = 'critical'; $class = 'error'; /* translators: Hidden accessibility text. */ $screen_reader = __( 'Error' ); $message = sprintf( /* translators: %s: The module name. */ __( 'The required module, %s, is not installed, or has been disabled.' ), $library ); } else { $class = 'warning'; /* translators: Hidden accessibility text. */ $screen_reader = __( 'Warning' ); $message = sprintf( /* translators: %s: The module name. */ __( 'The optional module, %s, is not installed, or has been disabled.' ), $library ); } if ( ! $module['required'] && 'good' === $result['status'] ) { $result['status'] = 'recommended'; } $failures[ $library ] = "$screen_reader $message"; } } if ( ! empty( $failures ) ) { $output = '%s
', __( 'PHP default timezone was configured by WordPress on loading. This is necessary for correct calculations of dates and times.' ) ), 'actions' => '', 'test' => 'php_default_timezone', ); if ( 'UTC' !== date_default_timezone_get() ) { $result['status'] = 'critical'; $result['label'] = __( 'PHP default timezone is invalid' ); $result['description'] = sprintf( '%s
', sprintf( /* translators: %s: date_default_timezone_set() */ __( 'PHP default timezone was changed after WordPress loading by a %s function call. This interferes with correct calculations of dates and times.' ), 'date_default_timezone_set()'
)
);
}
return $result;
}
/**
* Tests if there's an active PHP session that can affect loopback requests.
*
* @since 5.5.0
*
* @return array The test results.
*/
public function get_test_php_sessions() {
$result = array(
'label' => __( 'No PHP sessions detected' ),
'status' => 'good',
'badge' => array(
'label' => __( 'Performance' ),
'color' => 'blue',
),
'description' => sprintf(
'%s
', sprintf( /* translators: 1: session_start(), 2: session_write_close() */ __( 'PHP sessions created by a %1$s function call may interfere with REST API and loopback requests. An active session should be closed by %2$s before making any HTTP requests.' ), 'session_start()',
'session_write_close()'
)
),
'test' => 'php_sessions',
);
if ( function_exists( 'session_status' ) && PHP_SESSION_ACTIVE === session_status() ) {
$result['status'] = 'critical';
$result['label'] = __( 'An active PHP session was detected' );
$result['description'] = sprintf(
'%s
', sprintf( /* translators: 1: session_start(), 2: session_write_close() */ __( 'A PHP session was created by a %1$s function call. This interferes with REST API and loopback requests. The session should be closed by %2$s before making any HTTP requests.' ), 'session_start()',
'session_write_close()'
)
);
}
return $result;
}
/**
* Tests if the SQL server is up to date.
*
* @since 5.2.0
*
* @return array The test results.
*/
public function get_test_sql_server() {
if ( ! $this->mysql_server_version ) {
$this->prepare_sql_data();
}
$result = array(
'label' => __( 'SQL server is up to date' ),
'status' => 'good',
'badge' => array(
'label' => __( 'Performance' ),
'color' => 'blue',
),
'description' => sprintf(
'%s
', __( 'The SQL server is a required piece of software for the database WordPress uses to store all your site’s content and settings.' ) ), 'actions' => sprintf( '', /* translators: Localized version of WordPress requirements if one exists. */ esc_url( __( 'https://wordpress.org/about/requirements/' ) ), __( 'Learn more about what WordPress requires to run.' ), /* translators: Hidden accessibility text. */ __( '(opens in a new tab)' ) ), 'test' => 'sql_server', ); $db_dropin = file_exists( WP_CONTENT_DIR . '/db.php' ); if ( ! $this->is_recommended_mysql_version ) { $result['status'] = 'recommended'; $result['label'] = __( 'Outdated SQL server' ); $result['description'] .= sprintf( '%s
', sprintf( /* translators: 1: The database engine in use (MySQL or MariaDB). 2: Database server recommended version number. */ __( 'For optimal performance and security reasons, you should consider running %1$s version %2$s or higher. Contact your web hosting company to correct this.' ), ( $this->is_mariadb ? 'MariaDB' : 'MySQL' ), $this->mysql_recommended_version ) ); } if ( ! $this->is_acceptable_mysql_version ) { $result['status'] = 'critical'; $result['label'] = __( 'Severely outdated SQL server' ); $result['badge']['label'] = __( 'Security' ); $result['description'] .= sprintf( '%s
', sprintf( /* translators: 1: The database engine in use (MySQL or MariaDB). 2: Database server minimum version number. */ __( 'WordPress requires %1$s version %2$s or higher. Contact your web hosting company to correct this.' ), ( $this->is_mariadb ? 'MariaDB' : 'MySQL' ), $this->mysql_required_version ) ); } if ( $db_dropin ) { $result['description'] .= sprintf( '%s
', wp_kses( sprintf( /* translators: 1: The name of the drop-in. 2: The name of the database engine. */ __( 'You are using a %1$s drop-in which might mean that a %2$s database is not being used.' ), 'wp-content/db.php',
( $this->is_mariadb ? 'MariaDB' : 'MySQL' )
),
array(
'code' => true,
)
)
);
}
return $result;
}
/**
* Tests if the database server is capable of using utf8mb4.
*
* @since 5.2.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @return array The test results.
*/
public function get_test_utf8mb4_support() {
global $wpdb;
if ( ! $this->mysql_server_version ) {
$this->prepare_sql_data();
}
$result = array(
'label' => __( 'UTF8MB4 is supported' ),
'status' => 'good',
'badge' => array(
'label' => __( 'Performance' ),
'color' => 'blue',
),
'description' => sprintf(
'%s
', __( 'UTF8MB4 is the character set WordPress prefers for database storage because it safely supports the widest set of characters and encodings, including Emoji, enabling better support for non-English languages.' ) ), 'actions' => '', 'test' => 'utf8mb4_support', ); if ( ! $this->is_mariadb ) { if ( version_compare( $this->mysql_server_version, '5.5.3', '<' ) ) { $result['status'] = 'recommended'; $result['label'] = __( 'utf8mb4 requires a MySQL update' ); $result['description'] .= sprintf( '%s
', sprintf( /* translators: %s: Version number. */ __( 'WordPress’ utf8mb4 support requires MySQL version %s or greater. Please contact your server administrator.' ), '5.5.3' ) ); } else { $result['description'] .= sprintf( '%s
', __( 'Your MySQL version supports utf8mb4.' ) ); } } else { // MariaDB introduced utf8mb4 support in 5.5.0. if ( version_compare( $this->mysql_server_version, '5.5.0', '<' ) ) { $result['status'] = 'recommended'; $result['label'] = __( 'utf8mb4 requires a MariaDB update' ); $result['description'] .= sprintf( '%s
', sprintf( /* translators: %s: Version number. */ __( 'WordPress’ utf8mb4 support requires MariaDB version %s or greater. Please contact your server administrator.' ), '5.5.0' ) ); } else { $result['description'] .= sprintf( '%s
', __( 'Your MariaDB version supports utf8mb4.' ) ); } } if ( $wpdb->use_mysqli ) { // phpcs:ignore WordPress.DB.RestrictedFunctions.mysql_mysqli_get_client_info $mysql_client_version = mysqli_get_client_info(); } else { // phpcs:ignore WordPress.DB.RestrictedFunctions.mysql_mysql_get_client_info,PHPCompatibility.Extensions.RemovedExtensions.mysql_DeprecatedRemoved $mysql_client_version = mysql_get_client_info(); } /* * libmysql has supported utf8mb4 since 5.5.3, same as the MySQL server. * mysqlnd has supported utf8mb4 since 5.0.9. */ if ( false !== strpos( $mysql_client_version, 'mysqlnd' ) ) { $mysql_client_version = preg_replace( '/^\D+([\d.]+).*/', '$1', $mysql_client_version ); if ( version_compare( $mysql_client_version, '5.0.9', '<' ) ) { $result['status'] = 'recommended'; $result['label'] = __( 'utf8mb4 requires a newer client library' ); $result['description'] .= sprintf( '%s
', sprintf( /* translators: 1: Name of the library, 2: Number of version. */ __( 'WordPress’ utf8mb4 support requires MySQL client library (%1$s) version %2$s or newer. Please contact your server administrator.' ), 'mysqlnd', '5.0.9' ) ); } } else { if ( version_compare( $mysql_client_version, '5.5.3', '<' ) ) { $result['status'] = 'recommended'; $result['label'] = __( 'utf8mb4 requires a newer client library' ); $result['description'] .= sprintf( '%s
', sprintf( /* translators: 1: Name of the library, 2: Number of version. */ __( 'WordPress’ utf8mb4 support requires MySQL client library (%1$s) version %2$s or newer. Please contact your server administrator.' ), 'libmysql', '5.5.3' ) ); } } return $result; } /** * Tests if the site can communicate with WordPress.org. * * @since 5.2.0 * * @return array The test results. */ public function get_test_dotorg_communication() { $result = array( 'label' => __( 'Can communicate with WordPress.org' ), 'status' => '', 'badge' => array( 'label' => __( 'Security' ), 'color' => 'blue', ), 'description' => sprintf( '%s
', __( 'Communicating with the WordPress servers is used to check for new versions, and to both install and update WordPress core, themes or plugins.' ) ), 'actions' => '', 'test' => 'dotorg_communication', ); $wp_dotorg = wp_remote_get( 'https://api.wordpress.org', array( 'timeout' => 10, ) ); if ( ! is_wp_error( $wp_dotorg ) ) { $result['status'] = 'good'; } else { $result['status'] = 'critical'; $result['label'] = __( 'Could not reach WordPress.org' ); $result['description'] .= sprintf( '%s
', sprintf( '%s %s', /* translators: Hidden accessibility text. */ __( 'Error' ), sprintf( /* translators: 1: The IP address WordPress.org resolves to. 2: The error returned by the lookup. */ __( 'Your site is unable to reach WordPress.org at %1$s, and returned the error: %2$s' ), gethostbyname( 'api.wordpress.org' ), $wp_dotorg->get_error_message() ) ) ); $result['actions'] = sprintf( '', /* translators: Localized Support reference. */ esc_url( __( 'https://wordpress.org/support' ) ), __( 'Get help resolving this issue.' ), /* translators: Hidden accessibility text. */ __( '(opens in a new tab)' ) ); } return $result; } /** * Tests if debug information is enabled. * * When WP_DEBUG is enabled, errors and information may be disclosed to site visitors, * or logged to a publicly accessible file. * * Debugging is also frequently left enabled after looking for errors on a site, * as site owners do not understand the implications of this. * * @since 5.2.0 * * @return array The test results. */ public function get_test_is_in_debug_mode() { $result = array( 'label' => __( 'Your site is not set to output debug information' ), 'status' => 'good', 'badge' => array( 'label' => __( 'Security' ), 'color' => 'blue', ), 'description' => sprintf( '%s
', __( 'Debug mode is often enabled to gather more details about an error or site failure, but may contain sensitive information which should not be available on a publicly available website.' ) ), 'actions' => sprintf( '', /* translators: Documentation explaining debugging in WordPress. */ esc_url( __( 'https://wordpress.org/documentation/article/debugging-in-wordpress/' ) ), __( 'Learn more about debugging in WordPress.' ), /* translators: Hidden accessibility text. */ __( '(opens in a new tab)' ) ), 'test' => 'is_in_debug_mode', ); if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) { if ( defined( 'WP_DEBUG_LOG' ) && WP_DEBUG_LOG ) { $result['label'] = __( 'Your site is set to log errors to a potentially public file' ); $result['status'] = ( 0 === strpos( ini_get( 'error_log' ), ABSPATH ) ) ? 'critical' : 'recommended'; $result['description'] .= sprintf( '%s
', sprintf( /* translators: %s: WP_DEBUG_LOG */ __( 'The value, %s, has been added to this website’s configuration file. This means any errors on the site will be written to a file which is potentially available to all users.' ), 'WP_DEBUG_LOG'
)
);
}
if ( defined( 'WP_DEBUG_DISPLAY' ) && WP_DEBUG_DISPLAY ) {
$result['label'] = __( 'Your site is set to display errors to site visitors' );
$result['status'] = 'critical';
// On development environments, set the status to recommended.
if ( $this->is_development_environment() ) {
$result['status'] = 'recommended';
}
$result['description'] .= sprintf(
'%s
', sprintf( /* translators: 1: WP_DEBUG_DISPLAY, 2: WP_DEBUG */ __( 'The value, %1$s, has either been enabled by %2$s or added to your configuration file. This will make errors display on the front end of your site.' ), 'WP_DEBUG_DISPLAY',
'WP_DEBUG'
)
);
}
}
return $result;
}
/**
* Tests if the site is serving content over HTTPS.
*
* Many sites have varying degrees of HTTPS support, the most common of which is sites that have it
* enabled, but only if you visit the right site address.
*
* @since 5.2.0
* @since 5.7.0 Updated to rely on {@see wp_is_using_https()} and {@see wp_is_https_supported()}.
*
* @return array The test results.
*/
public function get_test_https_status() {
// Enforce fresh HTTPS detection results. This is normally invoked by using cron,
// but for Site Health it should always rely on the latest results.
wp_update_https_detection_errors();
$default_update_url = wp_get_default_update_https_url();
$result = array(
'label' => __( 'Your website is using an active HTTPS connection' ),
'status' => 'good',
'badge' => array(
'label' => __( 'Security' ),
'color' => 'blue',
),
'description' => sprintf(
'%s
', __( 'An HTTPS connection is a more secure way of browsing the web. Many services now have HTTPS as a requirement. HTTPS allows you to take advantage of new features that can increase site speed, improve search rankings, and gain the trust of your visitors by helping to protect their online privacy.' ) ), 'actions' => sprintf( '', esc_url( $default_update_url ), __( 'Learn more about why you should use HTTPS' ), /* translators: Hidden accessibility text. */ __( '(opens in a new tab)' ) ), 'test' => 'https_status', ); if ( ! wp_is_using_https() ) { // If the website is not using HTTPS, provide more information // about whether it is supported and how it can be enabled. $result['status'] = 'recommended'; $result['label'] = __( 'Your website does not use HTTPS' ); if ( wp_is_site_url_using_https() ) { if ( is_ssl() ) { $result['description'] = sprintf( '%s
', sprintf( /* translators: %s: URL to Settings > General > Site Address. */ __( 'You are accessing this website using HTTPS, but your Site Address is not set up to use HTTPS by default.' ), esc_url( admin_url( 'options-general.php' ) . '#home' ) ) ); } else { $result['description'] = sprintf( '%s
', sprintf( /* translators: %s: URL to Settings > General > Site Address. */ __( 'Your Site Address is not set up to use HTTPS.' ), esc_url( admin_url( 'options-general.php' ) . '#home' ) ) ); } } else { if ( is_ssl() ) { $result['description'] = sprintf( '%s
', sprintf( /* translators: 1: URL to Settings > General > WordPress Address, 2: URL to Settings > General > Site Address. */ __( 'You are accessing this website using HTTPS, but your WordPress Address and Site Address are not set up to use HTTPS by default.' ), esc_url( admin_url( 'options-general.php' ) . '#siteurl' ), esc_url( admin_url( 'options-general.php' ) . '#home' ) ) ); } else { $result['description'] = sprintf( '%s
', sprintf( /* translators: 1: URL to Settings > General > WordPress Address, 2: URL to Settings > General > Site Address. */ __( 'Your WordPress Address and Site Address are not set up to use HTTPS.' ), esc_url( admin_url( 'options-general.php' ) . '#siteurl' ), esc_url( admin_url( 'options-general.php' ) . '#home' ) ) ); } } if ( wp_is_https_supported() ) { $result['description'] .= sprintf( '%s
', __( 'HTTPS is already supported for your website.' ) ); if ( defined( 'WP_HOME' ) || defined( 'WP_SITEURL' ) ) { $result['description'] .= sprintf( '%s
', sprintf( /* translators: 1: wp-config.php, 2: WP_HOME, 3: WP_SITEURL */ __( 'However, your WordPress Address is currently controlled by a PHP constant and therefore cannot be updated. You need to edit your %1$s and remove or update the definitions of %2$s and %3$s.' ), 'wp-config.php',
'WP_HOME',
'WP_SITEURL'
)
);
} elseif ( current_user_can( 'update_https' ) ) {
$default_direct_update_url = add_query_arg( 'action', 'update_https', wp_nonce_url( admin_url( 'site-health.php' ), 'wp_update_https' ) );
$direct_update_url = wp_get_direct_update_https_url();
if ( ! empty( $direct_update_url ) ) {
$result['actions'] = sprintf(
'',
esc_url( $direct_update_url ),
__( 'Update your site to use HTTPS' ),
/* translators: Hidden accessibility text. */
__( '(opens in a new tab)' )
);
} else {
$result['actions'] = sprintf(
'',
esc_url( $default_direct_update_url ),
__( 'Update your site to use HTTPS' )
);
}
}
} else {
// If host-specific "Update HTTPS" URL is provided, include a link.
$update_url = wp_get_update_https_url();
if ( $update_url !== $default_update_url ) {
$result['description'] .= sprintf(
'',
esc_url( $update_url ),
__( 'Talk to your web host about supporting HTTPS for your website.' ),
/* translators: Hidden accessibility text. */
__( '(opens in a new tab)' )
);
} else {
$result['description'] .= sprintf(
'%s
', __( 'Talk to your web host about supporting HTTPS for your website.' ) ); } } } return $result; } /** * Checks if the HTTP API can handle SSL/TLS requests. * * @since 5.2.0 * * @return array The test result. */ public function get_test_ssl_support() { $result = array( 'label' => '', 'status' => '', 'badge' => array( 'label' => __( 'Security' ), 'color' => 'blue', ), 'description' => sprintf( '%s
', __( 'Securely communicating between servers are needed for transactions such as fetching files, conducting sales on store sites, and much more.' ) ), 'actions' => '', 'test' => 'ssl_support', ); $supports_https = wp_http_supports( array( 'ssl' ) ); if ( $supports_https ) { $result['status'] = 'good'; $result['label'] = __( 'Your site can communicate securely with other services' ); } else { $result['status'] = 'critical'; $result['label'] = __( 'Your site is unable to communicate securely with other services' ); $result['description'] .= sprintf( '%s
', __( 'Talk to your web host about OpenSSL support for PHP.' ) ); } return $result; } /** * Tests if scheduled events run as intended. * * If scheduled events are not running, this may indicate something with WP_Cron is not working * as intended, or that there are orphaned events hanging around from older code. * * @since 5.2.0 * * @return array The test results. */ public function get_test_scheduled_events() { $result = array( 'label' => __( 'Scheduled events are running' ), 'status' => 'good', 'badge' => array( 'label' => __( 'Performance' ), 'color' => 'blue', ), 'description' => sprintf( '%s
', __( 'Scheduled events are what periodically looks for updates to plugins, themes and WordPress itself. It is also what makes sure scheduled posts are published on time. It may also be used by various plugins to make sure that planned actions are executed.' ) ), 'actions' => '', 'test' => 'scheduled_events', ); $this->wp_schedule_test_init(); if ( is_wp_error( $this->has_missed_cron() ) ) { $result['status'] = 'critical'; $result['label'] = __( 'It was not possible to check your scheduled events' ); $result['description'] = sprintf( '%s
', sprintf( /* translators: %s: The error message returned while from the cron scheduler. */ __( 'While trying to test your site’s scheduled events, the following error was returned: %s' ), $this->has_missed_cron()->get_error_message() ) ); } elseif ( $this->has_missed_cron() ) { $result['status'] = 'recommended'; $result['label'] = __( 'A scheduled event has failed' ); $result['description'] = sprintf( '%s
', sprintf( /* translators: %s: The name of the failed cron event. */ __( 'The scheduled event, %s, failed to run. Your site still works, but this may indicate that scheduling posts or automated updates may not work as intended.' ), $this->last_missed_cron ) ); } elseif ( $this->has_late_cron() ) { $result['status'] = 'recommended'; $result['label'] = __( 'A scheduled event is late' ); $result['description'] = sprintf( '%s
', sprintf( /* translators: %s: The name of the late cron event. */ __( 'The scheduled event, %s, is late to run. Your site still works, but this may indicate that scheduling posts or automated updates may not work as intended.' ), $this->last_late_cron ) ); } return $result; } /** * Tests if WordPress can run automated background updates. * * Background updates in WordPress are primarily used for minor releases and security updates. * It's important to either have these working, or be aware that they are intentionally disabled * for whatever reason. * * @since 5.2.0 * * @return array The test results. */ public function get_test_background_updates() { $result = array( 'label' => __( 'Background updates are working' ), 'status' => 'good', 'badge' => array( 'label' => __( 'Security' ), 'color' => 'blue', ), 'description' => sprintf( '%s
', __( 'Background updates ensure that WordPress can auto-update if a security update is released for the version you are currently using.' ) ), 'actions' => '', 'test' => 'background_updates', ); if ( ! class_exists( 'WP_Site_Health_Auto_Updates' ) ) { require_once ABSPATH . 'wp-admin/includes/class-wp-site-health-auto-updates.php'; } // Run the auto-update tests in a separate class, // as there are many considerations to be made. $automatic_updates = new WP_Site_Health_Auto_Updates(); $tests = $automatic_updates->run_tests(); $output = '%s
', __( 'Plugin and theme auto-updates ensure that the latest versions are always installed.' ) ), 'actions' => '', 'test' => 'plugin_theme_auto_updates', ); $check_plugin_theme_updates = $this->detect_plugin_theme_auto_update_issues(); $result['status'] = $check_plugin_theme_updates->status; if ( 'good' !== $result['status'] ) { $result['label'] = __( 'Your site may have problems auto-updating plugins and themes' ); $result['description'] .= sprintf( '%s
', $check_plugin_theme_updates->message ); } return $result; } /** * Tests if loopbacks work as expected. * * A loopback is when WordPress queries itself, for example to start a new WP_Cron instance, * or when editing a plugin or theme. This has shown itself to be a recurring issue, * as code can very easily break this interaction. * * @since 5.2.0 * * @return array The test results. */ public function get_test_loopback_requests() { $result = array( 'label' => __( 'Your site can perform loopback requests' ), 'status' => 'good', 'badge' => array( 'label' => __( 'Performance' ), 'color' => 'blue', ), 'description' => sprintf( '%s
', __( 'Loopback requests are used to run scheduled events, and are also used by the built-in editors for themes and plugins to verify code stability.' ) ), 'actions' => '', 'test' => 'loopback_requests', ); $check_loopback = $this->can_perform_loopback(); $result['status'] = $check_loopback->status; if ( 'good' !== $result['status'] ) { $result['label'] = __( 'Your site could not complete a loopback request' ); $result['description'] .= sprintf( '%s
', $check_loopback->message ); } return $result; } /** * Tests if HTTP requests are blocked. * * It's possible to block all outgoing communication (with the possibility of allowing certain * hosts) via the HTTP API. This may create problems for users as many features are running as * services these days. * * @since 5.2.0 * * @return array The test results. */ public function get_test_http_requests() { $result = array( 'label' => __( 'HTTP requests seem to be working as expected' ), 'status' => 'good', 'badge' => array( 'label' => __( 'Performance' ), 'color' => 'blue', ), 'description' => sprintf( '%s
', __( 'It is possible for site maintainers to block all, or some, communication to other sites and services. If set up incorrectly, this may prevent plugins and themes from working as intended.' ) ), 'actions' => '', 'test' => 'http_requests', ); $blocked = false; $hosts = array(); if ( defined( 'WP_HTTP_BLOCK_EXTERNAL' ) && WP_HTTP_BLOCK_EXTERNAL ) { $blocked = true; } if ( defined( 'WP_ACCESSIBLE_HOSTS' ) ) { $hosts = explode( ',', WP_ACCESSIBLE_HOSTS ); } if ( $blocked && 0 === count( $hosts ) ) { $result['status'] = 'critical'; $result['label'] = __( 'HTTP requests are blocked' ); $result['description'] .= sprintf( '%s
', sprintf( /* translators: %s: Name of the constant used. */ __( 'HTTP requests have been blocked by the %s constant, with no allowed hosts.' ), 'WP_HTTP_BLOCK_EXTERNAL'
)
);
}
if ( $blocked && 0 < count( $hosts ) ) {
$result['status'] = 'recommended';
$result['label'] = __( 'HTTP requests are partially blocked' );
$result['description'] .= sprintf(
'%s
', sprintf( /* translators: 1: Name of the constant used. 2: List of allowed hostnames. */ __( 'HTTP requests have been blocked by the %1$s constant, with some allowed hosts: %2$s.' ), 'WP_HTTP_BLOCK_EXTERNAL',
implode( ',', $hosts )
)
);
}
return $result;
}
/**
* Tests if the REST API is accessible.
*
* Various security measures may block the REST API from working, or it may have been disabled in general.
* This is required for the new block editor to work, so we explicitly test for this.
*
* @since 5.2.0
*
* @return array The test results.
*/
public function get_test_rest_availability() {
$result = array(
'label' => __( 'The REST API is available' ),
'status' => 'good',
'badge' => array(
'label' => __( 'Performance' ),
'color' => 'blue',
),
'description' => sprintf(
'%s
', __( 'The REST API is one way that WordPress and other applications communicate with the server. For example, the block editor screen relies on the REST API to display and save your posts and pages.' ) ), 'actions' => '', 'test' => 'rest_availability', ); $cookies = wp_unslash( $_COOKIE ); $timeout = 10; // 10 seconds. $headers = array( 'Cache-Control' => 'no-cache', 'X-WP-Nonce' => wp_create_nonce( 'wp_rest' ), ); /** This filter is documented in wp-includes/class-wp-http-streams.php */ $sslverify = apply_filters( 'https_local_ssl_verify', false ); // Include Basic auth in loopback requests. if ( isset( $_SERVER['PHP_AUTH_USER'] ) && isset( $_SERVER['PHP_AUTH_PW'] ) ) { $headers['Authorization'] = 'Basic ' . base64_encode( wp_unslash( $_SERVER['PHP_AUTH_USER'] ) . ':' . wp_unslash( $_SERVER['PHP_AUTH_PW'] ) ); } $url = rest_url( 'wp/v2/types/post' ); // The context for this is editing with the new block editor. $url = add_query_arg( array( 'context' => 'edit', ), $url ); $r = wp_remote_get( $url, compact( 'cookies', 'headers', 'timeout', 'sslverify' ) ); if ( is_wp_error( $r ) ) { $result['status'] = 'critical'; $result['label'] = __( 'The REST API encountered an error' ); $result['description'] .= sprintf( '%s
%s
%s
%s
%s
%s
%s
', sprintf( /* translators: %s: The name of the query parameter being tested. */ __( 'The REST API did not process the %s query parameter correctly.' ), 'context'
)
);
}
}
return $result;
}
/**
* Tests if 'file_uploads' directive in PHP.ini is turned off.
*
* @since 5.5.0
*
* @return array The test results.
*/
public function get_test_file_uploads() {
$result = array(
'label' => __( 'Files can be uploaded' ),
'status' => 'good',
'badge' => array(
'label' => __( 'Performance' ),
'color' => 'blue',
),
'description' => sprintf(
'%s
', sprintf( /* translators: 1: file_uploads, 2: php.ini */ __( 'The %1$s directive in %2$s determines if uploading files is allowed on your site.' ), 'file_uploads',
'php.ini'
)
),
'actions' => '',
'test' => 'file_uploads',
);
if ( ! function_exists( 'ini_get' ) ) {
$result['status'] = 'critical';
$result['description'] .= sprintf(
/* translators: %s: ini_get() */
__( 'The %s function has been disabled, some media settings are unavailable because of this.' ),
'ini_get()'
);
return $result;
}
if ( empty( ini_get( 'file_uploads' ) ) ) {
$result['status'] = 'critical';
$result['description'] .= sprintf(
'%s
', sprintf( /* translators: 1: file_uploads, 2: 0 */ __( '%1$s is set to %2$s. You won\'t be able to upload files on your site.' ), 'file_uploads',
'0'
)
);
return $result;
}
$post_max_size = ini_get( 'post_max_size' );
$upload_max_filesize = ini_get( 'upload_max_filesize' );
if ( wp_convert_hr_to_bytes( $post_max_size ) < wp_convert_hr_to_bytes( $upload_max_filesize ) ) {
$result['label'] = sprintf(
/* translators: 1: post_max_size, 2: upload_max_filesize */
__( 'The "%1$s" value is smaller than "%2$s"' ),
'post_max_size',
'upload_max_filesize'
);
$result['status'] = 'recommended';
if ( 0 === wp_convert_hr_to_bytes( $post_max_size ) ) {
$result['description'] = sprintf(
'%s
', sprintf( /* translators: 1: post_max_size, 2: upload_max_filesize */ __( 'The setting for %1$s is currently configured as 0, this could cause some problems when trying to upload files through plugin or theme features that rely on various upload methods. It is recommended to configure this setting to a fixed value, ideally matching the value of %2$s, as some upload methods read the value 0 as either unlimited, or disabled.' ), 'post_max_size',
'upload_max_filesize'
)
);
} else {
$result['description'] = sprintf(
'%s
', sprintf( /* translators: 1: post_max_size, 2: upload_max_filesize */ __( 'The setting for %1$s is smaller than %2$s, this could cause some problems when trying to upload files.' ), 'post_max_size',
'upload_max_filesize'
)
);
}
return $result;
}
return $result;
}
/**
* Tests if the Authorization header has the expected values.
*
* @since 5.6.0
*
* @return array
*/
public function get_test_authorization_header() {
$result = array(
'label' => __( 'The Authorization header is working as expected' ),
'status' => 'good',
'badge' => array(
'label' => __( 'Security' ),
'color' => 'blue',
),
'description' => sprintf(
'%s
', __( 'The Authorization header is used by third-party applications you have approved for this site. Without this header, those apps cannot connect to your site.' ) ), 'actions' => '', 'test' => 'authorization_header', ); if ( ! isset( $_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW'] ) ) { $result['label'] = __( 'The authorization header is missing' ); } elseif ( 'user' !== $_SERVER['PHP_AUTH_USER'] || 'pwd' !== $_SERVER['PHP_AUTH_PW'] ) { $result['label'] = __( 'The authorization header is invalid' ); } else { return $result; } $result['status'] = 'recommended'; $result['description'] .= sprintf( '%s
', __( 'If you are still seeing this warning after having tried the actions below, you may need to contact your hosting provider for further assistance.' ) ); if ( ! function_exists( 'got_mod_rewrite' ) ) { require_once ABSPATH . 'wp-admin/includes/misc.php'; } if ( got_mod_rewrite() ) { $result['actions'] .= sprintf( '', esc_url( admin_url( 'options-permalink.php' ) ), __( 'Flush permalinks' ) ); } else { $result['actions'] .= sprintf( '', __( 'https://developer.wordpress.org/rest-api/frequently-asked-questions/#why-is-authentication-not-working' ), __( 'Learn how to configure the Authorization header.' ), /* translators: Hidden accessibility text. */ __( '(opens in a new tab)' ) ); } return $result; } /** * Tests if a full page cache is available. * * @since 6.1.0 * * @return array The test result. */ public function get_test_page_cache() { $description = '' . __( 'Page cache enhances the speed and performance of your site by saving and serving static pages instead of calling for a page every time a user visits.' ) . '
'; $description .= '' . __( 'Page cache is detected by looking for an active page cache plugin as well as making three requests to the homepage and looking for one or more of the following HTTP client caching response headers:' ) . '
'; $description .= '' . implode( ', ', array_keys( $this->get_page_cache_headers() ) ) . '.';
$result = array(
'badge' => array(
'label' => __( 'Performance' ),
'color' => 'blue',
),
'description' => wp_kses_post( $description ),
'test' => 'page_cache',
'status' => 'good',
'label' => '',
'actions' => sprintf(
'',
__( 'https://wordpress.org/documentation/article/optimization/#Caching' ),
__( 'Learn more about page cache' ),
/* translators: Hidden accessibility text. */
__( '(opens in a new tab)' )
),
);
$page_cache_detail = $this->get_page_cache_detail();
if ( is_wp_error( $page_cache_detail ) ) {
$result['label'] = __( 'Unable to detect the presence of page cache' );
$result['status'] = 'recommended';
$error_info = sprintf(
/* translators: 1: Error message, 2: Error code. */
__( 'Unable to detect page cache due to possible loopback request problem. Please verify that the loopback request test is passing. Error: %1$s (Code: %2$s)' ),
$page_cache_detail->get_error_message(),
$page_cache_detail->get_error_code()
);
$result['description'] = wp_kses_post( "$error_info
" ) . $result['description']; return $result; } $result['status'] = $page_cache_detail['status']; switch ( $page_cache_detail['status'] ) { case 'recommended': $result['label'] = __( 'Page cache is not detected but the server response time is OK' ); break; case 'good': $result['label'] = __( 'Page cache is detected and the server response time is good' ); break; default: if ( empty( $page_cache_detail['headers'] ) && ! $page_cache_detail['advanced_cache_present'] ) { $result['label'] = __( 'Page cache is not detected and the server response time is slow' ); } else { $result['label'] = __( 'Page cache is detected but the server response time is still slow' ); } } $page_cache_test_summary = array(); if ( empty( $page_cache_detail['response_time'] ) ) { $page_cache_test_summary[] = ' ' . __( 'Server response time could not be determined. Verify that loopback requests are working.' ); } else { $threshold = $this->get_good_response_time_threshold(); if ( $page_cache_detail['response_time'] < $threshold ) { $page_cache_test_summary[] = ' ' . sprintf( /* translators: 1: The response time in milliseconds, 2: The recommended threshold in milliseconds. */ __( 'Median server response time was %1$s milliseconds. This is less than the recommended %2$s milliseconds threshold.' ), number_format_i18n( $page_cache_detail['response_time'] ), number_format_i18n( $threshold ) ); } else { $page_cache_test_summary[] = ' ' . sprintf( /* translators: 1: The response time in milliseconds, 2: The recommended threshold in milliseconds. */ __( 'Median server response time was %1$s milliseconds. It should be less than the recommended %2$s milliseconds threshold.' ), number_format_i18n( $page_cache_detail['response_time'] ), number_format_i18n( $threshold ) ); } if ( empty( $page_cache_detail['headers'] ) ) { $page_cache_test_summary[] = ' ' . __( 'No client caching response headers were detected.' ); } else { $headers_summary = ''; $headers_summary .= ' ' . sprintf( /* translators: %d: Number of caching headers. */ _n( 'There was %d client caching response header detected:', 'There were %d client caching response headers detected:', count( $page_cache_detail['headers'] ) ), count( $page_cache_detail['headers'] ) ); $headers_summary .= '' . implode( ', ', $page_cache_detail['headers'] ) . '.';
$page_cache_test_summary[] = $headers_summary;
}
}
if ( $page_cache_detail['advanced_cache_present'] ) {
$page_cache_test_summary[] = ' ' . __( 'A page cache plugin was detected.' );
} elseif ( ! ( is_array( $page_cache_detail ) && ! empty( $page_cache_detail['headers'] ) ) ) {
// Note: This message is not shown if client caching response headers were present since an external caching layer may be employed.
$page_cache_test_summary[] = ' ' . __( 'A page cache plugin was not detected.' );
}
$result['description'] .= '%s
', __( 'A persistent object cache makes your site’s database more efficient, resulting in faster load times because WordPress can retrieve your site’s content and settings much more quickly.' ) ), 'actions' => sprintf( '', esc_url( $action_url ), __( 'Learn more about persistent object caching.' ), /* translators: Hidden accessibility text. */ __( '(opens in a new tab)' ) ), ); if ( wp_using_ext_object_cache() ) { return $result; } if ( ! $this->should_suggest_persistent_object_cache() ) { $result['label'] = __( 'A persistent object cache is not required' ); return $result; } $available_services = $this->available_object_cache_services(); $notes = __( 'Your hosting provider can tell you if a persistent object cache can be enabled on your site.' ); if ( ! empty( $available_services ) ) { $notes .= ' ' . sprintf( /* translators: Available object caching services. */ __( 'Your host appears to support the following object caching services: %s.' ), implode( ', ', $available_services ) ); } /** * Filters the second paragraph of the health check's description * when suggesting the use of a persistent object cache. * * Hosts may want to replace the notes to recommend their preferred object caching solution. * * Plugin authors may want to append notes (not replace) on why object caching is recommended for their plugin. * * @since 6.1.0 * * @param string $notes The notes appended to the health check description. * @param string[] $available_services The list of available persistent object cache services. */ $notes = apply_filters( 'site_status_persistent_object_cache_notes', $notes, $available_services ); $result['status'] = 'recommended'; $result['label'] = __( 'You should use a persistent object cache' ); $result['description'] .= sprintf( '%s
', wp_kses( $notes, array( 'a' => array( 'href' => true ), 'code' => true, 'em' => true, 'strong' => true, ) ) ); return $result; } /** * Returns a set of tests that belong to the site status page. * * Each site status test is defined here, they may be `direct` tests, that run on page load, or `async` tests * which will run later down the line via JavaScript calls to improve page performance and hopefully also user * experiences. * * @since 5.2.0 * @since 5.6.0 Added support for `has_rest` and `permissions`. * * @return array The list of tests to run. */ public static function get_tests() { $tests = array( 'direct' => array( 'wordpress_version' => array( 'label' => __( 'WordPress Version' ), 'test' => 'wordpress_version', ), 'plugin_version' => array( 'label' => __( 'Plugin Versions' ), 'test' => 'plugin_version', ), 'theme_version' => array( 'label' => __( 'Theme Versions' ), 'test' => 'theme_version', ), 'php_version' => array( 'label' => __( 'PHP Version' ), 'test' => 'php_version', ), 'php_extensions' => array( 'label' => __( 'PHP Extensions' ), 'test' => 'php_extensions', ), 'php_default_timezone' => array( 'label' => __( 'PHP Default Timezone' ), 'test' => 'php_default_timezone', ), 'php_sessions' => array( 'label' => __( 'PHP Sessions' ), 'test' => 'php_sessions', ), 'sql_server' => array( 'label' => __( 'Database Server version' ), 'test' => 'sql_server', ), 'utf8mb4_support' => array( 'label' => __( 'MySQL utf8mb4 support' ), 'test' => 'utf8mb4_support', ), 'ssl_support' => array( 'label' => __( 'Secure communication' ), 'test' => 'ssl_support', ), 'scheduled_events' => array( 'label' => __( 'Scheduled events' ), 'test' => 'scheduled_events', ), 'http_requests' => array( 'label' => __( 'HTTP Requests' ), 'test' => 'http_requests', ), 'rest_availability' => array( 'label' => __( 'REST API availability' ), 'test' => 'rest_availability', 'skip_cron' => true, ), 'debug_enabled' => array( 'label' => __( 'Debugging enabled' ), 'test' => 'is_in_debug_mode', ), 'file_uploads' => array( 'label' => __( 'File uploads' ), 'test' => 'file_uploads', ), 'plugin_theme_auto_updates' => array( 'label' => __( 'Plugin and theme auto-updates' ), 'test' => 'plugin_theme_auto_updates', ), ), 'async' => array( 'dotorg_communication' => array( 'label' => __( 'Communication with WordPress.org' ), 'test' => rest_url( 'wp-site-health/v1/tests/dotorg-communication' ), 'has_rest' => true, 'async_direct_test' => array( WP_Site_Health::get_instance(), 'get_test_dotorg_communication' ), ), 'background_updates' => array( 'label' => __( 'Background updates' ), 'test' => rest_url( 'wp-site-health/v1/tests/background-updates' ), 'has_rest' => true, 'async_direct_test' => array( WP_Site_Health::get_instance(), 'get_test_background_updates' ), ), 'loopback_requests' => array( 'label' => __( 'Loopback request' ), 'test' => rest_url( 'wp-site-health/v1/tests/loopback-requests' ), 'has_rest' => true, 'async_direct_test' => array( WP_Site_Health::get_instance(), 'get_test_loopback_requests' ), ), 'https_status' => array( 'label' => __( 'HTTPS status' ), 'test' => rest_url( 'wp-site-health/v1/tests/https-status' ), 'has_rest' => true, 'async_direct_test' => array( WP_Site_Health::get_instance(), 'get_test_https_status' ), ), ), ); // Conditionally include Authorization header test if the site isn't protected by Basic Auth. if ( ! wp_is_site_protected_by_basic_auth() ) { $tests['async']['authorization_header'] = array( 'label' => __( 'Authorization header' ), 'test' => rest_url( 'wp-site-health/v1/tests/authorization-header' ), 'has_rest' => true, 'headers' => array( 'Authorization' => 'Basic ' . base64_encode( 'user:pwd' ) ), 'skip_cron' => true, ); } // Only check for caches in production environments. if ( 'production' === wp_get_environment_type() ) { $tests['async']['page_cache'] = array( 'label' => __( 'Page cache' ), 'test' => rest_url( 'wp-site-health/v1/tests/page-cache' ), 'has_rest' => true, 'async_direct_test' => array( WP_Site_Health::get_instance(), 'get_test_page_cache' ), ); $tests['direct']['persistent_object_cache'] = array( 'label' => __( 'Persistent object cache' ), 'test' => 'persistent_object_cache', ); } /** * Filters which site status tests are run on a site. * * The site health is determined by a set of tests based on best practices from * both the WordPress Hosting Team and web standards in general. * * Some sites may not have the same requirements, for example the automatic update * checks may be handled by a host, and are therefore disabled in core. * Or maybe you want to introduce a new test, is caching enabled/disabled/stale for example. * * Tests may be added either as direct, or asynchronous ones. Any test that may require some time * to complete should run asynchronously, to avoid extended loading periods within wp-admin. * * @since 5.2.0 * @since 5.6.0 Added the `async_direct_test` array key for asynchronous tests. * Added the `skip_cron` array key for all tests. * * @param array[] $tests { * An associative array of direct and asynchronous tests. * * @type array[] $direct { * An array of direct tests. * * @type array ...$identifier { * `$identifier` should be a unique identifier for the test. Plugins and themes are encouraged to * prefix test identifiers with their slug to avoid collisions between tests. * * @type string $label The friendly label to identify the test. * @type callable $test The callback function that runs the test and returns its result. * @type bool $skip_cron Whether to skip this test when running as cron. * } * } * @type array[] $async { * An array of asynchronous tests. * * @type array ...$identifier { * `$identifier` should be a unique identifier for the test. Plugins and themes are encouraged to * prefix test identifiers with their slug to avoid collisions between tests. * * @type string $label The friendly label to identify the test. * @type string $test An admin-ajax.php action to be called to perform the test, or * if `$has_rest` is true, a URL to a REST API endpoint to perform * the test. * @type bool $has_rest Whether the `$test` property points to a REST API endpoint. * @type bool $skip_cron Whether to skip this test when running as cron. * @type callable $async_direct_test A manner of directly calling the test marked as asynchronous, * as the scheduled event can not authenticate, and endpoints * may require authentication. * } * } * } */ $tests = apply_filters( 'site_status_tests', $tests ); // Ensure that the filtered tests contain the required array keys. $tests = array_merge( array( 'direct' => array(), 'async' => array(), ), $tests ); return $tests; } /** * Adds a class to the body HTML tag. * * Filters the body class string for admin pages and adds our own class for easier styling. * * @since 5.2.0 * * @param string $body_class The body class string. * @return string The modified body class string. */ public function admin_body_class( $body_class ) { $screen = get_current_screen(); if ( 'site-health' !== $screen->id ) { return $body_class; } $body_class .= ' site-health'; return $body_class; } /** * Initiates the WP_Cron schedule test cases. * * @since 5.2.0 */ private function wp_schedule_test_init() { $this->schedules = wp_get_schedules(); $this->get_cron_tasks(); } /** * Populates the list of cron events and store them to a class-wide variable. * * @since 5.2.0 */ private function get_cron_tasks() { $cron_tasks = _get_cron_array(); if ( empty( $cron_tasks ) ) { $this->crons = new WP_Error( 'no_tasks', __( 'No scheduled events exist on this site.' ) ); return; } $this->crons = array(); foreach ( $cron_tasks as $time => $cron ) { foreach ( $cron as $hook => $dings ) { foreach ( $dings as $sig => $data ) { $this->crons[ "$hook-$sig-$time" ] = (object) array( 'hook' => $hook, 'time' => $time, 'sig' => $sig, 'args' => $data['args'], 'schedule' => $data['schedule'], 'interval' => isset( $data['interval'] ) ? $data['interval'] : null, ); } } } } /** * Checks if any scheduled tasks have been missed. * * Returns a boolean value of `true` if a scheduled task has been missed and ends processing. * * If the list of crons is an instance of WP_Error, returns the instance instead of a boolean value. * * @since 5.2.0 * * @return bool|WP_Error True if a cron was missed, false if not. WP_Error if the cron is set to that. */ public function has_missed_cron() { if ( is_wp_error( $this->crons ) ) { return $this->crons; } foreach ( $this->crons as $id => $cron ) { if ( ( $cron->time - time() ) < $this->timeout_missed_cron ) { $this->last_missed_cron = $cron->hook; return true; } } return false; } /** * Checks if any scheduled tasks are late. * * Returns a boolean value of `true` if a scheduled task is late and ends processing. * * If the list of crons is an instance of WP_Error, returns the instance instead of a boolean value. * * @since 5.3.0 * * @return bool|WP_Error True if a cron is late, false if not. WP_Error if the cron is set to that. */ public function has_late_cron() { if ( is_wp_error( $this->crons ) ) { return $this->crons; } foreach ( $this->crons as $id => $cron ) { $cron_offset = $cron->time - time(); if ( $cron_offset >= $this->timeout_missed_cron && $cron_offset < $this->timeout_late_cron ) { $this->last_late_cron = $cron->hook; return true; } } return false; } /** * Checks for potential issues with plugin and theme auto-updates. * * Though there is no way to 100% determine if plugin and theme auto-updates are configured * correctly, a few educated guesses could be made to flag any conditions that would * potentially cause unexpected behaviors. * * @since 5.5.0 * * @return object The test results. */ public function detect_plugin_theme_auto_update_issues() { $mock_plugin = (object) array( 'id' => 'w.org/plugins/a-fake-plugin', 'slug' => 'a-fake-plugin', 'plugin' => 'a-fake-plugin/a-fake-plugin.php', 'new_version' => '9.9', 'url' => 'https://wordpress.org/plugins/a-fake-plugin/', 'package' => 'https://downloads.wordpress.org/plugin/a-fake-plugin.9.9.zip', 'icons' => array( '2x' => 'https://ps.w.org/a-fake-plugin/assets/icon-256x256.png', '1x' => 'https://ps.w.org/a-fake-plugin/assets/icon-128x128.png', ), 'banners' => array( '2x' => 'https://ps.w.org/a-fake-plugin/assets/banner-1544x500.png', '1x' => 'https://ps.w.org/a-fake-plugin/assets/banner-772x250.png', ), 'banners_rtl' => array(), 'tested' => '5.5.0', 'requires_php' => '5.6.20', 'compatibility' => new stdClass(), ); $mock_theme = (object) array( 'theme' => 'a-fake-theme', 'new_version' => '9.9', 'url' => 'https://wordpress.org/themes/a-fake-theme/', 'package' => 'https://downloads.wordpress.org/theme/a-fake-theme.9.9.zip', 'requires' => '5.0.0', 'requires_php' => '5.6.20', ); $test_plugins_enabled = wp_is_auto_update_forced_for_item( 'plugin', true, $mock_plugin ); $test_themes_enabled = wp_is_auto_update_forced_for_item( 'theme', true, $mock_theme ); $ui_enabled_for_plugins = wp_is_auto_update_enabled_for_type( 'plugin' ); $ui_enabled_for_themes = wp_is_auto_update_enabled_for_type( 'theme' ); $plugin_filter_present = has_filter( 'auto_update_plugin' ); $theme_filter_present = has_filter( 'auto_update_theme' ); if ( ( ! $test_plugins_enabled && $ui_enabled_for_plugins ) || ( ! $test_themes_enabled && $ui_enabled_for_themes ) ) { return (object) array( 'status' => 'critical', 'message' => __( 'Auto-updates for plugins and/or themes appear to be disabled, but settings are still set to be displayed. This could cause auto-updates to not work as expected.' ), ); } if ( ( ! $test_plugins_enabled && $plugin_filter_present ) && ( ! $test_themes_enabled && $theme_filter_present ) ) { return (object) array( 'status' => 'recommended', 'message' => __( 'Auto-updates for plugins and themes appear to be disabled. This will prevent your site from receiving new versions automatically when available.' ), ); } elseif ( ! $test_plugins_enabled && $plugin_filter_present ) { return (object) array( 'status' => 'recommended', 'message' => __( 'Auto-updates for plugins appear to be disabled. This will prevent your site from receiving new versions automatically when available.' ), ); } elseif ( ! $test_themes_enabled && $theme_filter_present ) { return (object) array( 'status' => 'recommended', 'message' => __( 'Auto-updates for themes appear to be disabled. This will prevent your site from receiving new versions automatically when available.' ), ); } return (object) array( 'status' => 'good', 'message' => __( 'There appear to be no issues with plugin and theme auto-updates.' ), ); } /** * Runs a loopback test on the site. * * Loopbacks are what WordPress uses to communicate with itself to start up WP_Cron, scheduled posts, * make sure plugin or theme edits don't cause site failures and similar. * * @since 5.2.0 * * @return object The test results. */ public function can_perform_loopback() { $body = array( 'site-health' => 'loopback-test' ); $cookies = wp_unslash( $_COOKIE ); $timeout = 10; // 10 seconds. $headers = array( 'Cache-Control' => 'no-cache', ); /** This filter is documented in wp-includes/class-wp-http-streams.php */ $sslverify = apply_filters( 'https_local_ssl_verify', false ); // Include Basic auth in loopback requests. if ( isset( $_SERVER['PHP_AUTH_USER'] ) && isset( $_SERVER['PHP_AUTH_PW'] ) ) { $headers['Authorization'] = 'Basic ' . base64_encode( wp_unslash( $_SERVER['PHP_AUTH_USER'] ) . ':' . wp_unslash( $_SERVER['PHP_AUTH_PW'] ) ); } $url = site_url( 'wp-cron.php' ); /* * A post request is used for the wp-cron.php loopback test to cause the file * to finish early without triggering cron jobs. This has two benefits: * - cron jobs are not triggered a second time on the site health page, * - the loopback request finishes sooner providing a quicker result. * * Using a POST request causes the loopback to differ slightly to the standard * GET request WordPress uses for wp-cron.php loopback requests but is close * enough. See https://core.trac.wordpress.org/ticket/52547 */ $r = wp_remote_post( $url, compact( 'body', 'cookies', 'headers', 'timeout', 'sslverify' ) ); if ( is_wp_error( $r ) ) { return (object) array( 'status' => 'critical', 'message' => sprintf( '%s