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<?php
declare(strict_types=1);
namespace WP_Rocket\Engine\Optimization\RUCSS\Admin;
use WP_Rocket\Admin\Options;
use WP_Rocket\Engine\Admin\Settings\Settings as AdminSettings;
use WP_Rocket\Engine\Optimization\RUCSS\Controller\UsedCSS;
use WP_Rocket\Engine\Preload\Homepage;
use WP_Rocket\Event_Management\Subscriber_Interface;
class Subscriber implements Subscriber_Interface {
/**
* Settings instance
*
* @var Settings
*/
private $settings;
/**
* Database instance
*
* @var Database
*/
private $database;
/**
* UsedCSS instance
*
* @var UsedCSS
*/
private $used_css;
/**
* Options API instance.
*
* @var Options
*/
private $options_api;
/**
* Homepage Preload instance
*
* @var Homepage
*/
private $homepage_preloader;
/**
* Instantiate the class
*
* @param Settings $settings Settings instance.
* @param Database $database Database instance.
* @param UsedCSS $used_css UsedCSS instance.
* @param Options $options_api Options API instance.
* @param Homepage $homepage_preloader Homepage Preload instance.
*/
public function __construct( Settings $settings, Database $database, UsedCSS $used_css, Options $options_api, Homepage $homepage_preloader ) {
$this->settings = $settings;
$this->database = $database;
$this->used_css = $used_css;
$this->options_api = $options_api;
$this->homepage_preloader = $homepage_preloader;
}
/**
* Return an array of events that this subscriber listens to.
*
* @return array
*/
public static function get_subscribed_events() : array {
$slug = rocket_get_constant( 'WP_ROCKET_SLUG', 'wp_rocket_settings' );
return [
'rocket_first_install_options' => 'add_options_first_time',
'rocket_input_sanitize' => [ 'sanitize_options', 14, 2 ],
'update_option_' . $slug => [
[ 'clean_used_css_and_cache', 10, 2 ],
[ 'maybe_cancel_preload', 10, 2 ],
],
'switch_theme' => 'truncate_used_css',
'rocket_rucss_file_changed' => 'truncate_used_css',
'wp_trash_post' => 'delete_used_css_on_update_or_delete',
'delete_post' => 'delete_used_css_on_update_or_delete',
'clean_post_cache' => 'delete_used_css_on_update_or_delete',
'wp_update_comment_count' => 'delete_used_css_on_update_or_delete',
'edit_term' => 'delete_term_used_css',
'pre_delete_term' => 'delete_term_used_css',
'init' => 'schedule_clean_not_commonly_used_rows',
'rocket_rucss_clean_rows_time_event' => 'cron_clean_rows',
'admin_post_rocket_clear_usedcss' => 'truncate_used_css_handler',
'admin_notices' => 'clear_usedcss_result',
'rocket_admin_bar_items' => 'add_clean_used_css_menu_item',
'rocket_after_settings_radio_options' => [ 'display_progress_bar', 10 ],
'admin_enqueue_scripts' => 'add_admin_js',
'rocket_before_add_field_to_settings' => [
[ 'set_optimize_css_delivery_value', 10, 1 ],
[ 'set_optimize_css_delivery_method_value', 10, 1 ],
],
];
}
/**
* Enqueue React params and Progress bar.
*
* @since 3.9
*
* @return void
*/
public function add_admin_js() {
// Return on all pages except WP Rocket settings page.
$screen = get_current_screen();
if (
isset( $screen->id )
&&
'settings_page_wprocket' !== $screen->id
) {
return;
}
if ( ! $this->settings->is_enabled() ) {
return;
}
wp_enqueue_script( 'wpr-rucss-progress-bar', rocket_get_constant( 'WP_ROCKET_ASSETS_JS_URL' ) . 'react/rucss-progress-bar.js', [ 'react-dom' ], rocket_get_constant( 'WP_ROCKET_VERSION' ), true );
$prewarmup_stats = $this->options_api->get( 'prewarmup_stats', [] );
wp_localize_script(
'wpr-rucss-progress-bar',
'rocket_rucss_ajax_data',
[
'api_url' => rest_url( 'wp-rocket/v1/rucss/warmup/status' ),
'api_nonce' => wp_create_nonce( 'rocket-ajax' ),
'api_debug' => (bool) rocket_get_constant( 'WP_ROCKET_RUCSS_DEBUG' ),
'api_allow_optimization' => $prewarmup_stats['allow_optimization'] ?? false,
'wpr_rucss_translations' => $this->ui_translations(),
]
);
}
/**
* Cron callback for deleting old rows in both table databases.
*
* @since 3.9
*
* @return void
*/
public function cron_clean_rows() {
if ( ! $this->settings->is_enabled() ) {
return;
}
$this->database->delete_old_used_css();
$this->database->delete_old_resources();
}
/**
* Schedules cron for used CSS.
*
* @since 3.9
*
* @return void
*/
public function schedule_clean_not_commonly_used_rows() {
if (
! $this->settings->is_enabled()
&&
wp_next_scheduled( 'rocket_rucss_clean_rows_time_event' )
) {
wp_clear_scheduled_hook( 'rocket_rucss_clean_rows_time_event' );
return;
}
if ( ! $this->settings->is_enabled() ) {
return;
}
if ( wp_next_scheduled( 'rocket_rucss_clean_rows_time_event' ) ) {
return;
}
wp_schedule_event( time(), 'weekly', 'rocket_rucss_clean_rows_time_event' );
}
/**
* Delete used_css on Update Post or Delete post.
*
* @since 3.9
*
* @param int $post_id The post ID.
*
* @return void
*/
public function delete_used_css_on_update_or_delete( $post_id ) {
if ( ! $this->settings->is_enabled() ) {
return;
}
$url = get_permalink( $post_id );
if ( false === $url ) {
return;
}
$this->used_css->delete_used_css( untrailingslashit( $url ) );
}
/**
* Deletes the used CSS when updating a term
*
* @since 3.10.2
*
* @param int $term_id the term ID.
*
* @return void
*/
public function delete_term_used_css( $term_id ) {
if ( ! $this->settings->is_enabled() ) {
return;
}
$url = get_term_link( (int) $term_id );
if ( is_wp_error( $url ) ) {
return;
}
$this->used_css->delete_used_css( untrailingslashit( $url ) );
}
/**
* Truncate RUCSS used_css DB table.
*
* @since 3.9
*
* @return void
*/
public function truncate_used_css() {
if ( ! $this->settings->is_enabled() ) {
return;
}
$this->database->truncate_used_css_table();
}
/**
* Add the RUCSS options to the WP Rocket options array.
*
* @since 3.9
*
* @param array $options WP Rocket options array.
*
* @return array
*/
public function add_options_first_time( $options ) : array {
return $this->settings->add_options( $options );
}
/**
* Sanitizes RUCSS options values when the settings form is submitted
*
* @since 3.9
*
* @param array $input Array of values submitted from the form.
* @param AdminSettings $settings Settings class instance.
*
* @return array
*/
public function sanitize_options( $input, AdminSettings $settings ) : array {
return $this->settings->sanitize_options( $input, $settings );
}
/**
* Truncate UsedCSS DB Table and WP Rocket cache when `remove_unused_css_safelist` is changed.
*
* @since 3.9
*
* @param array $old_value An array of submitted values for the settings.
* @param array $value An array of previous values for the settings.
*
* @return void
*/
public function clean_used_css_and_cache( $old_value, $value ) {
if ( ! current_user_can( 'rocket_manage_options' )
||
! $this->settings->is_enabled()
) {
return;
}
if (
isset( $value['remove_unused_css_safelist'], $old_value['remove_unused_css_safelist'] )
&&
$value['remove_unused_css_safelist'] !== $old_value['remove_unused_css_safelist']
) {
$this->database->truncate_used_css_table();
// Clear all caching files.
rocket_clean_domain();
}
}
/**
* Cancels any preload currently running if the RUCSS option is enabled and preload is enabled.
*
* @since 3.9.1
*
* @param array $old_value Previous option values.
* @param array $value New option values.
*/
public function maybe_cancel_preload( $old_value, $value ) {
if (
! empty( $value['remove_unused_css'] )
&&
empty( $old_value['remove_unused_css'] )
&&
! empty( $value['manual_preload'] )
) {
delete_transient( 'rocket_preload_errors' );
$this->homepage_preloader->cancel_preload();
}
}
/**
* Truncate used_css table when clicking on the dashboard button.
*
* @since 3.9
*
* @return void
*/
public function truncate_used_css_handler() {
if ( ! isset( $_GET['_wpnonce'] ) || ! wp_verify_nonce( sanitize_key( $_GET['_wpnonce'] ), 'rocket_clear_usedcss' ) ) {
wp_nonce_ays( '' );
}
if ( ! current_user_can( 'rocket_remove_unused_css' ) ) {
rocket_get_constant( 'WP_ROCKET_IS_TESTING', false ) ? wp_die() : exit;
}
if ( ! $this->settings->is_enabled() ) {
set_transient(
'rocket_clear_usedcss_response',
[
'status' => 'error',
'message' => __( 'Used CSS option is not enabled!', 'rocket' ),
]
);
wp_safe_redirect( esc_url_raw( wp_get_referer() ) );
rocket_get_constant( 'WP_ROCKET_IS_TESTING', false ) ? wp_die() : exit;
}
$this->database->truncate_used_css_table();
rocket_clean_domain();
rocket_dismiss_box( 'rocket_warning_plugin_modification' );
set_transient(
'rocket_clear_usedcss_response',
[
'status' => 'success',
'message' => __( 'Used CSS cache cleared!', 'rocket' ),
]
);
wp_safe_redirect( esc_url_raw( wp_get_referer() ) );
rocket_get_constant( 'WP_ROCKET_IS_TESTING', false ) ? wp_die() : exit;
}
/**
* Show admin notice after clearing used_css table.
*
* @since 3.9
*
* @return void
*/
public function clear_usedcss_result() {
if ( ! current_user_can( 'rocket_remove_unused_css' ) ) {
return;
}
$response = get_transient( 'rocket_clear_usedcss_response' );
if ( ! $response ) {
return;
}
delete_transient( 'rocket_clear_usedcss_response' );
rocket_notice_html( $response );
}
/**
* Add Clean used CSS link to WP Rocket admin bar item
*
* @since 3.9
*
* @param WP_Admin_Bar $wp_admin_bar WP_Admin_Bar instance, passed by reference.
*
* @return void
*/
public function add_clean_used_css_menu_item( $wp_admin_bar ) {
$this->settings->add_clean_used_css_menu_item( $wp_admin_bar );
}
/**
* Displays the RUCSS progressbar
*
* @since 3.9
*
* @param array $option_data array of option_id and sub_fields of the option.
*
* @return void
*/
public function display_progress_bar( $option_data ) {
if ( 'remove_unused_css' !== $option_data['option_id'] ) {
return;
}
$this->settings->display_progress_bar();
}
/**
* Array with UI translations.
*
* @since 3.9
*
* @return array
*/
private function ui_translations(): array {
return [
'step1_txt' => __( 'Collected resource files from {count} of {total} key pages.', 'rocket' ),
'step2_txt' => __( 'Processed {count} of {total} resource files found on key pages.', 'rocket' ),
'rucss_working' => __( 'Remove Unused CSS is complete!', 'rocket' ),
'warmed_list' => __( 'These files could not be processed:', 'rocket' ),
'rucss_info_txt' => __( 'We are processing the CSS on your site. This may take several minutes to complete.', 'rocket' ),
];
}
/**
* Set optimize css delivery value
*
* @since 3.10
*
* @param array $field_args Array of field to be added to settigs page.
*
* @return array
*/
public function set_optimize_css_delivery_value( $field_args ) : array {
return $this->settings->set_optimize_css_delivery_value( $field_args );
}
/**
* Set optimize css delivery method value
*
* @since 3.10
*
* @param array $field_args Array of field to be added to settigs page.
*
* @return array
*/
public function set_optimize_css_delivery_method_value( $field_args ) : array {
return $this->settings->set_optimize_css_delivery_method_value( $field_args );
}
}
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