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<?php
/**
* WPSEO plugin file.
*
* @package WPSEO\Admin\Notifications
*/
/**
* Class Yoast_Notifications.
*/
class Yoast_Notifications {
/**
* Holds the admin page's ID.
*
* @var string
*/
public const ADMIN_PAGE = 'wpseo_dashboard';
/**
* Total notifications count.
*
* @var int
*/
private static $notification_count = 0;
/**
* All error notifications.
*
* @var array
*/
private static $errors = [];
/**
* Active errors.
*
* @var array
*/
private static $active_errors = [];
/**
* Dismissed errors.
*
* @var array
*/
private static $dismissed_errors = [];
/**
* All warning notifications.
*
* @var array
*/
private static $warnings = [];
/**
* Active warnings.
*
* @var array
*/
private static $active_warnings = [];
/**
* Dismissed warnings.
*
* @var array
*/
private static $dismissed_warnings = [];
/**
* Yoast_Notifications constructor.
*/
public function __construct() {
$this->add_hooks();
}
/**
* Add hooks
*
* @return void
*/
private function add_hooks() {
// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Reason: We are not processing form information.
if ( isset( $_GET['page'] ) && is_string( $_GET['page'] ) ) {
// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Reason: We are not processing form information.
$page = sanitize_text_field( wp_unslash( $_GET['page'] ) );
if ( $page === self::ADMIN_PAGE ) {
add_action( 'admin_enqueue_scripts', [ $this, 'enqueue_assets' ] );
}
}
// Needed for adminbar and Notifications page.
add_action( 'admin_init', [ self::class, 'collect_notifications' ], 99 );
// Add AJAX hooks.
add_action( 'wp_ajax_yoast_dismiss_notification', [ $this, 'ajax_dismiss_notification' ] );
add_action( 'wp_ajax_yoast_restore_notification', [ $this, 'ajax_restore_notification' ] );
}
/**
* Enqueue assets.
*
* @return void
*/
public function enqueue_assets() {
$asset_manager = new WPSEO_Admin_Asset_Manager();
$asset_manager->enqueue_style( 'notifications' );
}
/**
* Handle ajax request to dismiss a notification.
*
* @return void
*/
public function ajax_dismiss_notification() {
$notification = $this->get_notification_from_ajax_request();
if ( $notification ) {
$notification_center = Yoast_Notification_Center::get();
$notification_center->maybe_dismiss_notification( $notification );
$this->output_ajax_response( $notification->get_type() );
}
wp_die();
}
/**
* Handle ajax request to restore a notification.
*
* @return void
*/
public function ajax_restore_notification() {
$notification = $this->get_notification_from_ajax_request();
if ( $notification ) {
$notification_center = Yoast_Notification_Center::get();
$notification_center->restore_notification( $notification );
$this->output_ajax_response( $notification->get_type() );
}
wp_die();
}
/**
* Create AJAX response data.
*
* @param string $type Notification type.
*
* @return void
*/
private function output_ajax_response( $type ) {
$html = $this->get_view_html( $type );
// phpcs:disable WordPress.Security.EscapeOutput -- Reason: WPSEO_Utils::format_json_encode is safe.
echo WPSEO_Utils::format_json_encode(
[
'html' => $html,
'total' => self::get_active_notification_count(),
],
);
// phpcs:enable -- Reason: WPSEO_Utils::format_json_encode is safe.
}
/**
* Get the HTML to return in the AJAX request.
*
* @param string $type Notification type.
*
* @return bool|string
*/
private function get_view_html( $type ) {
switch ( $type ) {
case 'error':
$view = 'errors';
break;
case 'warning':
default:
$view = 'warnings';
break;
}
// Re-collect notifications.
self::collect_notifications();
/**
* Stops PHPStorm from nagging about this variable being unused. The variable is used in the view.
*
* @noinspection PhpUnusedLocalVariableInspection
*/
$notifications_data = self::get_template_variables();
ob_start();
include WPSEO_PATH . 'admin/views/partial-notifications-' . $view . '.php';
$html = ob_get_clean();
return $html;
}
/**
* Extract the Yoast Notification from the AJAX request.
*
* This function does not handle nonce verification.
*
* @return Yoast_Notification|null A Yoast_Notification on success, null on failure.
*/
private function get_notification_from_ajax_request() {
// phpcs:ignore WordPress.Security.NonceVerification.Missing -- Reason: This function does not handle nonce verification.
if ( ! isset( $_POST['notification'] ) || ! is_string( $_POST['notification'] ) ) {
return null;
}
// phpcs:ignore WordPress.Security.NonceVerification.Missing -- Reason: This function does not handle nonce verification.
$notification_id = sanitize_text_field( wp_unslash( $_POST['notification'] ) );
if ( empty( $notification_id ) ) {
return null;
}
$notification_center = Yoast_Notification_Center::get();
return $notification_center->get_notification_by_id( $notification_id );
}
/**
* Collect the notifications and group them together.
*
* @return void
*/
public static function collect_notifications() {
$notification_center = Yoast_Notification_Center::get();
$notifications = $notification_center->get_sorted_notifications();
self::$notification_count = count( $notifications );
self::$errors = array_filter( $notifications, [ self::class, 'filter_error_notifications' ] );
self::$dismissed_errors = array_filter( self::$errors, [ self::class, 'filter_dismissed_notifications' ] );
self::$active_errors = array_diff( self::$errors, self::$dismissed_errors );
self::$warnings = array_filter( $notifications, [ self::class, 'filter_warning_notifications' ] );
self::$dismissed_warnings = array_filter( self::$warnings, [ self::class, 'filter_dismissed_notifications' ] );
self::$active_warnings = array_diff( self::$warnings, self::$dismissed_warnings );
}
/**
* Get the variables needed in the views.
*
* @return array
*/
public static function get_template_variables() {
return [
'metrics' => [
'total' => self::$notification_count,
'active' => self::get_active_notification_count(),
'errors' => count( self::$errors ),
'warnings' => count( self::$warnings ),
],
'errors' => [
'dismissed' => self::$dismissed_errors,
'active' => self::$active_errors,
],
'warnings' => [
'dismissed' => self::$dismissed_warnings,
'active' => self::$active_warnings,
],
];
}
/**
* Get the number of active notifications.
*
* @return int
*/
public static function get_active_notification_count() {
return ( count( self::$active_errors ) + count( self::$active_warnings ) );
}
/**
* Filter out any non-errors.
*
* @param Yoast_Notification $notification Notification to test.
*
* @return bool
*/
private static function filter_error_notifications( Yoast_Notification $notification ) {
return $notification->get_type() === 'error';
}
/**
* Filter out any non-warnings.
*
* @param Yoast_Notification $notification Notification to test.
*
* @return bool
*/
private static function filter_warning_notifications( Yoast_Notification $notification ) {
return $notification->get_type() !== 'error';
}
/**
* Filter out any dismissed notifications.
*
* @param Yoast_Notification $notification Notification to test.
*
* @return bool
*/
private static function filter_dismissed_notifications( Yoast_Notification $notification ) {
return Yoast_Notification_Center::is_notification_dismissed( $notification );
}
}
class_alias( Yoast_Notifications::class, 'Yoast_Alerts' );