obj_404_detector = $detector;
}
/**
* Returns singleton instance
*
* @param WP_Optimize_404_Detector $detector Helper class to be able to call the 404 request detector
* @return WP_Optimize_Performance
*/
public static function get_instance(WP_Optimize_404_Detector $detector) {
static $instance = null;
if (null === $instance) {
$instance = new WP_Optimize_Performance($detector);
}
return $instance;
}
/**
* Hook content generators
*
* @return void
*/
public function init() {
add_filter('site_health_navigation_tabs', array($this, 'add_health_tab'));
add_action('site_health_tab_content', array($this, 'site_health_tab_content'));
add_action('wp_dashboard_setup', array($this, 'add_dashboard_widgets'));
}
/**
* Hook the handler class that will manage 404 requests
*
* @return void
*/
public function hook_404_handler() {
add_action('template_redirect', array($this, 'maybe_handle_404_request'));
}
/**
* Detect if request is a 404 not found error, and handle it using WP_Optimize_404_Detector class
*
* @return void
*/
public function maybe_handle_404_request() {
if (is_404()) {
$this->obj_404_detector->handle_request();
}
}
/**
* Add widget to admin dashboard
*
* @return void
*/
public function add_dashboard_widgets() {
wp_add_dashboard_widget('wp_optimize_performance', __('Performance', 'wp-optimize'), array($this, 'print_dashboard_widget'));
}
/**
* Generate the admin widget content
*
* @return string
*/
private function dashboard_widget() {
$html = $this->get_404_requests_summary();
if (empty($html)) {
$html = esc_html__('No performance issues found', 'wp-optimize');
}
return $html;
}
/**
* Build an HTML summary to be shown in a dashboard widget
*
* @return string
*/
private function get_404_requests_summary() {
$detector = $this->obj_404_detector;
$count = $detector->get_suspicious_requests_count();
if ($count > $detector->get_dashboard_alert_request_count_threshold()) {
$admin_url = is_multisite() ? network_admin_url('admin.php') : admin_url('admin.php');
return '' . esc_html($count) . ' ' . esc_html__('URLs with many 404 Not Found requests', 'wp-optimize') . ' ' . esc_html__('Check', 'wp-optimize') . '';
}
return "";
}
/**
* Actually print the widget contents
*
* @return void
*/
public function print_dashboard_widget() {
echo $this->dashboard_widget(); // phpcs:ignore WordPress.Security.EscapeOutput -- Output is already escaped
}
/**
* Add a tab on the site health check
*
* @return array
*/
public function add_health_tab($tabs) {
$tabs['wpo_performance'] = 'WP-Optimize ' . esc_html__('Performance', 'wp-optimize');
return $tabs;
}
/**
* Display information in the site health report
*
* @return void
*/
public function site_health_tab_content($tab) {
if ('wpo_performance' == $tab) {
WP_Optimize()->include_template('performance/site-health.php', false, array(
'alerts' => $this->dashboard_widget()
));
}
}
}
endif;