init();
}
public function init() {
$this->php_min_version_check = version_compare( HEALTH_CHECK_PHP_MIN_VERSION, PHP_VERSION, '<=' );
$this->php_supported_version_check = version_compare( HEALTH_CHECK_PHP_SUPPORTED_VERSION, PHP_VERSION, '<=' );
$this->php_rec_version_check = version_compare( HEALTH_CHECK_PHP_REC_VERSION, PHP_VERSION, '<=' );
$this->prepare_sql_data();
add_action( 'wp_ajax_health-check-site-status', array( $this, 'site_status' ) );
add_action( 'wp_loaded', array( $this, 'check_wp_version_check_exists' ) );
}
private function prepare_sql_data() {
global $wpdb;
if ( method_exists( $wpdb, 'db_version' ) ) {
if ( $wpdb->use_mysqli ) {
// phpcs:ignore WordPress.DB.RestrictedFunctions.mysql_mysqli_get_server_info
$mysql_server_type = mysqli_get_server_info( $wpdb->dbh );
} else {
// phpcs:ignore WordPress.DB.RestrictedFunctions.mysql_mysql_get_server_info
$mysql_server_type = mysql_get_server_info( $wpdb->dbh );
}
$this->mysql_server_version = $wpdb->get_var( 'SELECT VERSION()' );
}
$this->health_check_mysql_rec_version = HEALTH_CHECK_MYSQL_REC_VERSION;
if ( stristr( $mysql_server_type, 'mariadb' ) ) {
$this->mariadb = true;
$this->health_check_mysql_rec_version = '10.0';
}
$this->mysql_min_version_check = version_compare( HEALTH_CHECK_MYSQL_MIN_VERSION, $this->mysql_server_version, '<=' );
$this->mysql_rec_version_check = version_compare( $this->health_check_mysql_rec_version, $this->mysql_server_version, '<=' );
}
public function check_wp_version_check_exists() {
if ( ! is_admin() || ! is_user_logged_in() || ! current_user_can( 'manage_options' ) || ! isset( $_GET['health-check-test-wp_version_check'] ) ) {
return;
}
echo ( has_filter( 'wp_version_check', 'wp_version_check' ) ? 'yes' : 'no' );
die();
}
public function site_status() {
$function = sprintf(
'test_%s',
$_POST['feature']
);
if ( ! method_exists( $this, $function ) || ! is_callable( array( $this, $function ) ) ) {
die();
}
$call = call_user_func( array( $this, $function ) );
die();
}
public function test_wordpress_version() {
$core_current_version = get_bloginfo( 'version' );
$core_updates = get_core_updates();
if ( ! is_array( $core_updates ) ) {
printf(
' %s',
sprintf(
// translators: %s: Your current version of WordPress.
esc_html__( '%s - We were unable to check if any new versions are available.', 'health-check' ),
$core_current_version
)
);
} else {
foreach ( $core_updates as $core => $update ) {
if ( 'upgrade' === $update->response ) {
$current_version = explode( '.', $core_current_version );
$new_version = explode( '.', $update->version );
$current_major = $current_version[0] . '.' . $current_version[1];
$new_major = $new_version[0] . '.' . $new_version[1];
if ( $current_major !== $new_major ) {
// This is a major version mismatch.
printf(
' %s',
sprintf(
// translators: %1$s: Your current version of WordPress. %2$s The latest version of WordPress available.
esc_html__( '%1$s ( Latest version: %2$s )', 'health-check' ),
$core_current_version,
$update->version
)
);
} else {
// This is a minor version, sometimes considered more critical.
printf(
' %s',
sprintf(
// translators: %1$s: Your current version of WordPress. %2$s The latest version of WordPress available.
esc_html__( '%1$s ( Latest version: %2$s ) - We strongly urge you to update, as minor updates are often security related.', 'health-check' ),
$core_current_version,
$update->version
)
);
}
} else {
printf(
' %s',
esc_html( $core_current_version )
);
}
}
}
}
public function test_plugin_version() {
$plugins = get_plugins();
$plugin_updates = get_plugin_updates();
$show_unused_plugins = true;
$plugins_have_updates = false;
$plugins_active = 0;
$plugins_total = 0;
$plugins_needs_update = 0;
if ( class_exists( 'Health_Check_Troubleshooting_MU' ) ) {
$troubleshooting = new Health_Check_Troubleshooting_MU();
if ( $troubleshooting->is_troubleshooting() ) {
$show_unused_plugins = false;
}
}
foreach ( $plugins as $plugin_path => $plugin ) {
$plugins_total++;
if ( is_plugin_active( $plugin_path ) ) {
$plugins_active++;
}
$plugin_version = $plugin['Version'];
if ( array_key_exists( $plugin_path, $plugin_updates ) ) {
$plugins_needs_update++;
$plugins_have_updates = true;
}
}
echo '
';
if ( $plugins_needs_update > 0 ) {
printf(
'
%s',
sprintf(
// translators: %d: The amount of outdated plugins.
esc_html( _n(
'Your site has %d plugin waiting to be updated.',
'Your site has %d plugins waiting to be updated.',
$plugins_needs_update,
'health-check'
) ),
$plugins_needs_update
)
);
} else {
printf(
'
%s',
sprintf(
// translators: %d: The amount of plugins.
esc_html( _n(
'Your site has %d active plugin, and it is up to date.',
'Your site has %d active plugins, and they are all up to date.',
$plugins_total,
'health-check'
) ),
$plugins_total
)
);
}
if ( ( $plugins_total > $plugins_active ) && $show_unused_plugins ) {
$unused_plugins = $plugins_total - $plugins_active;
printf(
'
%s',
sprintf(
// translators: %d: The amount of inactive plugins.
esc_html( _n(
'Your site has %d inactive plugin, it is recommended to remove any unused plugins to enhance your site security.',
'Your site has %d inactive plugins, it is recommended to remove any unused plugins to enhance your site security.',
$unused_plugins,
'health-check'
) ),
$unused_plugins
)
);
}
echo '
';
}
public function test_theme_version() {
$theme_updates = get_theme_updates();
$themes_total = 0;
$themes_need_updates = 0;
$themes_inactive = 0;
// This value is changed dduring processing to determine how many themes are considered a reasonable amount.
$allowed_theme_count = 1;
$has_default_theme = false;
$has_unused_themes = false;
$show_unused_themes = true;
if ( class_exists( 'Health_Check_Troubleshooting_MU' ) ) {
$troubleshooting = new Health_Check_Troubleshooting_MU();
if ( $troubleshooting->is_troubleshooting() ) {
$show_unused_themes = false;
}
}
// Populate a list of all themes available in the install.
$all_themes = wp_get_themes();
$active_theme = wp_get_theme();
foreach ( $all_themes as $theme_slug => $theme ) {
$themes_total++;
if ( WP_DEFAULT_THEME === $theme_slug ) {
$has_default_theme = true;
}
if ( array_key_exists( $theme_slug, $theme_updates ) ) {
$themes_need_updates++;
}
}
// If this is a child theme, increase the allowed theme count by one, to account for the parent.
if ( $active_theme->parent() ) {
$allowed_theme_count++;
}
// If there's a default theme installed, we count that as allowed as well.
if ( $has_default_theme ) {
$allowed_theme_count++;
}
if ( $themes_total > $allowed_theme_count ) {
$has_unused_themes = true;
$themes_inactive = ( $themes_total - $allowed_theme_count );
}
echo '
';
if ( $themes_need_updates > 0 ) {
printf(
'
%s',
sprintf(
// translators: %d: The amount of outdated themes.
esc_html( _n(
'Your site has %d theme waiting to be updated.',
'Your site has %d themes waiting to be updated.',
$themes_need_updates,
'health-check'
) ),
$themes_need_updates
)
);
} else {
printf(
'
%s',
sprintf(
// translators: %d: The amount of themes.
esc_html( _n(
'Your site has %d installed theme, and it is up to date.',
'Your site has %d installed themes, and they are all up to date.',
$themes_total,
'health-check'
) ),
$themes_total
)
);
}
if ( $has_unused_themes && $show_unused_themes ) {
// This is a child theme, so we want to be a bit more explicit in our messages.
if ( $active_theme->parent() ) {
printf(
'
%s',
sprintf(
// translators: %1$d: The amount of inactive themes. %2$s: The default theme for WordPress. %3$s: The currently active theme. %4$s: The active themes parent theme.
esc_html( _n(
'Your site has %1$d inactive theme. To enhance your sites security it is recommended to remove any unused themes. You should keep %2$s, the default WordPress theme, %3$s, your current theme and %4$s, the parent theme.',
'Your site has %1$d inactive themes. To enhance your sites security it is recommended to remove any unused themes. You should keep %2$s, the default WordPress theme, %3$s, your current theme and %4$s, the parent theme. ',
$themes_inactive,
'health-check'
) ),
$themes_inactive,
WP_DEFAULT_THEME,
$active_theme->name,
$active_theme->parent()->name
)
);
} else {
printf(
'
%s',
sprintf(
// translators: %1$d: The amount of inactive themes. %2$s: The default theme for WordPress. %3$s: The currently active theme.
esc_html( _n(
'Your site has %1$d inactive theme, other than %2$s, the default WordPress theme, and %3$s, your active theme. It is recommended to remove any unused themes to enhance your sites security.',
'Your site has %1$d inactive themes, other than %2$s, the default WordPress theme, and %3$s, your active theme. It is recommended to remove any unused themes to enhance your sites security.',
$themes_inactive,
'health-check'
) ),
$themes_inactive,
WP_DEFAULT_THEME,
$active_theme->name
)
);
}
}
if ( ! $has_default_theme ) {
printf(
'
%s',
esc_html__( 'Your site does not have a default theme, default themes are used by WordPress automatically if anything is wrong with your normal theme.', 'health-check' )
);
}
echo '
';
}
public function test_php_version() {
$status = 'good';
$notice = array();
if ( ! $this->php_min_version_check ) {
$status = 'error';
$notice[] = sprintf(
'%s',
esc_url(
_x( 'https://wordpress.org/support/upgrade-php/', 'The link to the Update PHP page, which may be localized.', 'health-check' )
),
sprintf(
// translators: %1$s: Current PHP version. %2$s: Recommended PHP version. %3$s: Minimum PHP version.
esc_html__( 'Your version of PHP, %1$s, is very outdated and no longer receiving security updates and is not supported by WordPress. You should contact your host for an upgrade, WordPress recommends using PHP version %2$s, but will work with version %3$s or newer.', 'health-check' ),
PHP_VERSION,
HEALTH_CHECK_PHP_REC_VERSION,
HEALTH_CHECK_PHP_MIN_VERSION
)
);
} elseif ( ! $this->php_supported_version_check ) {
$status = 'warning';
$notice[] = sprintf(
'%s',
esc_url(
_x( 'https://wordpress.org/support/upgrade-php/', 'The link to the Update PHP page, which may be localized.', 'health-check' )
),
sprintf(
// translators: %1$s: Current PHP version. %2$s: Recommended PHP version.
esc_html__( 'Your version of PHP, %1$s, is very outdated and no longer receiving security updates. You should contact your host for an upgrade, WordPress recommends using PHP version %2$s.', 'health-check' ),
PHP_VERSION,
HEALTH_CHECK_PHP_REC_VERSION
)
);
} elseif ( ! $this->php_rec_version_check ) {
$status = 'warning';
$notice[] = sprintf(
'%s',
esc_url(
_x( 'https://wordpress.org/support/upgrade-php/', 'The link to the Update PHP page, which may be localized.', 'health-check' )
),
sprintf(
// translators: %s: Recommended PHP version
esc_html__( 'For best performance we recommend using PHP %s or higher.', 'health-check' ),
HEALTH_CHECK_PHP_REC_VERSION
)
);
}
printf(
' %s',
esc_attr( $status ),
sprintf(
'%s%s',
PHP_VERSION,
( ! empty( $notice ) ? ' - ' . implode( ' ', $notice ) : '' )
)
);
}
public function test_json_extension() {
$json_check = Health_Check::json_check();
$status = 'good';
$notice = array();
if ( ! $json_check ) {
printf(
' %s',
esc_html__( 'The PHP install on your server has the JSON extension disabled and is therefore not compatible with WordPress 3.2 or newer.', 'health-check' )
);
} else {
printf(
' %s',
esc_html__( 'Your PHP install supports JSON.', 'health-check' )
);
}
}
public function test_sql_server() {
$status = 'good';
$notice = array();
$db_dropin = file_exists( WP_CONTENT_DIR . '/db.php' );
if ( ! $this->mysql_rec_version_check ) {
$status = 'warning';
$notice[] = sprintf(
// translators: %1$s: The database engine in use (MySQL or MariaDB). %2$s: Database server recommended version number.
esc_html__( 'For performance and security reasons, we strongly recommend running %1$s version %2$s or higher.', 'health-check' ),
( $this->mariadb ? 'MariaDB' : 'MySQL' ),
$this->health_check_mysql_rec_version
);
}
if ( ! $this->mysql_min_version_check ) {
$status = 'error';
$notice[] = sprintf(
// translators: %1$s: The database engine in use (MySQL or MariaDB). %2$s: Database server minimum version number.
esc_html__( 'WordPress 3.2+ requires %1$s version %2$s or higher.', 'health-check' ),
( $this->mariadb ? 'MariaDB' : 'MySQL' ),
HEALTH_CHECK_MYSQL_MIN_VERSION
);
}
if ( $db_dropin ) {
// translators: %s: The database engine in use (MySQL or MariaDB).
$notice[] = wp_kses(
sprintf(
// translators: %s: The name of the database engine being used.
__( 'You are using a wp-content/db.php drop-in which might mean that a %s database is not being used.', 'health-check' ),
( $this->mariadb ? 'MariaDB' : 'MySQL' )
),
array(
'code' => true,
)
);
}
printf(
' %s',
esc_attr( $status ),
sprintf(
'%s%s',
esc_html( $this->mysql_server_version ),
( ! empty( $notice ) ? ' - ' . implode( ' ', $notice ) : '' )
)
);
}
public function test_utf8mb4_support() {
global $wpdb;
if ( ! $this->mariadb ) {
if ( version_compare( $this->mysql_server_version, '5.5.3', '<' ) ) {
printf(
' %s',
sprintf(
/* translators: %s: Number of version. */
esc_html__( 'WordPress\' utf8mb4 support requires MySQL version %s or greater', 'health-check' ),
'5.5.3'
)
);
} else {
printf(
' %s',
esc_html__( 'Your MySQL version supports utf8mb4', 'health-check' )
);
}
} else { // MariaDB introduced utf8mb4 support in 5.5.0
if ( version_compare( $this->mysql_server_version, '5.5.0', '<' ) ) {
printf(
' %s',
sprintf(
/* translators: %s: Number of version. */
esc_html__( 'WordPress\' utf8mb4 support requires MariaDB version %s or greater', 'health-check' ),
'5.5.0'
)
);
} else {
printf(
' %s',
esc_html__( 'Your MariaDB version supports utf8mb4', 'health-check' )
);
}
}
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
$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( $mysql_client_version, '5.0.9', '<' ) ) {
printf(
' %s',
sprintf(
/* translators: %1$s: Name of the library, %2$s: Number of version. */
__( 'WordPress\' utf8mb4 support requires MySQL client library (%1$s) version %2$s or newer.', 'health-check' ),
'mysqlnd',
'5.0.9'
)
);
}
} else {
if ( version_compare( $mysql_client_version, '5.5.3', '<' ) ) {
printf(
' %s',
sprintf(
/* translators: %1$s: Name of the library, %2$s: Number of version. */
__( 'WordPress\' utf8mb4 support requires MySQL client library (%1$s) version %2$s or newer.', 'health-check' ),
'libmysql',
'5.5.3'
)
);
}
}
}
public function test_dotorg_communication() {
$wp_dotorg = wp_remote_get( 'https://wordpress.org', array(
'timeout' => 10,
) );
if ( ! is_wp_error( $wp_dotorg ) ) {
printf(
' %s',
esc_html__( 'WordPress.org is reachable from your server.', 'health-check' )
);
} else {
printf(
' %s',
sprintf(
// translators: %1$s: The IP address WordPress.org resolves to. %2$s: The error returned by the lookup.
__( 'Unable to reach WordPress.org at %1$s: %2$s', 'health-check' ),
gethostbyname( 'wordpress.org' ),
$wp_dotorg->get_error_message()
)
);
}
}
public function test_https_status() {
if ( is_ssl() ) {
$wp_url = get_bloginfo( 'wpurl' );
$site_url = get_bloginfo( 'url' );
if ( 'https' !== substr( $wp_url, 0, 5 ) || 'https' !== substr( $site_url, 0, 5 ) ) {
printf(
' %s',
sprintf(
// translators: %s: URL to Settings > General to change options.
__( 'You are accessing this website using HTTPS, but your WordPress Address is not set up to use HTTPS by default.', 'health-check' ),
esc_url( admin_url( 'options-general.php' ) )
)
);
} else {
printf(
' %s',
esc_html__( 'You are accessing this website using HTTPS.', 'health-check' )
);
}
} else {
printf(
' %s',
esc_html__( 'You are not using HTTPS to access this website.', 'health-check' )
);
}
}
public function test_ssl_support() {
$supports_https = wp_http_supports( array( 'ssl' ) );
if ( $supports_https ) {
printf(
' %s',
esc_html__( 'Your WordPress install can communicate securely with other services.', 'health-check' )
);
} else {
printf(
' %s',
esc_html__( 'Your WordPress install cannot communicate securely with other services. Talk to your web host about OpenSSL support for PHP.', 'health-check' )
);
}
}
public function test_scheduled_events() {
$scheduled_events = new Health_Check_WP_Cron();
if ( is_wp_error( $scheduled_events->has_missed_cron() ) ) {
printf(
' %s',
esc_html( $scheduled_events->has_missed_cron()->get_error_message() )
);
} else {
if ( $scheduled_events->has_missed_cron() ) {
printf(
' %s',
sprintf(
// translators: %s: The name of the failed cron event.
esc_html__( 'A scheduled event (%s) has failed to run. Your site still works, but this may indicate that scheduling posts or automated updates may not work as intended.', 'health-check' ),
$scheduled_events->last_missed_cron
)
);
} else {
printf(
' %s',
esc_html__( 'No scheduled events have been missed.', 'health-check' )
);
}
}
}
public function test_background_updates() {
$automatic_updates = new Health_Check_Auto_Updates();
$tests = $automatic_updates->run_tests();
echo '