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<?php
namespace WP_Rocket\Engine\Cache;
use WP_Filesystem_Direct;
use WP_Rocket\Event_Management\Event_Manager;
use WP_Rocket\Event_Management\Event_Manager_Aware_Subscriber_Interface;
/**
* Subscriber for the cache admin events
*
* @since 3.5.5
*/
class AdminSubscriber implements Event_Manager_Aware_Subscriber_Interface {
/**
* Event Manager instance
*
* @var Event_Manager;
*/
protected $event_manager;
/**
* AdvancedCache instance
*
* @var AdvancedCache
*/
private $advanced_cache;
/**
* WPCache instance
*
* @var WPCache
*/
private $wp_cache;
/**
* WordPress filesystem.
*
* @var WP_Filesystem_Direct
*/
private $filesystem;
/**
* Instantiate the class
*
* @param AdvancedCache $advanced_cache AdvancedCache instance.
* @param WPCache $wp_cache WPCache instance.
* @param WP_Filesystem_Direct|null $filesystem WordPress filesystem.
*/
public function __construct( AdvancedCache $advanced_cache, WPCache $wp_cache, $filesystem = null ) {
$this->advanced_cache = $advanced_cache;
$this->wp_cache = $wp_cache;
$this->filesystem = ! empty( $filesystem ) ? $filesystem : rocket_direct_filesystem();
}
/**
* Returns an array of events that this subscriber wants to listen to.
*
* @return array
*/
public static function get_subscribed_events() {
$slug = rocket_get_constant( 'WP_ROCKET_SLUG' );
return [
'admin_init' => [
[ 'register_terms_row_action' ],
[ 'maybe_set_wp_cache' ],
],
'admin_notices' => [
[ 'notice_advanced_cache_permissions' ],
[ 'notice_wp_config_permissions' ],
],
"update_option_{$slug}" => [ 'maybe_set_wp_cache', 12 ],
'site_status_tests' => 'add_wp_cache_status_test',
'wp_rocket_upgrade' => [ 'on_update', 10, 2 ],
'rocket_domain_changed' => [
[ 'regenerate_configs' ],
[ 'delete_old_configs' ],
[ 'clear_cache', 10, 2 ],
],
'rocket_after_save_import' => 'maybe_regenerate_advanced_cache',
];
}
/**
* Sets the event manager for the subscriber.
*
* @param Event_Manager $event_manager Event Manager instance.
*/
public function set_event_manager( Event_Manager $event_manager ) {
$this->event_manager = $event_manager;
}
/**
* Registers the action for each public taxonomy
*
* @since 3.5.5
*
* @return void
*/
public function register_terms_row_action() {
$taxonomies = get_taxonomies(
[
'public' => true,
'publicly_queryable' => true,
]
);
foreach ( $taxonomies as $taxonomy ) {
$this->event_manager->add_callback( "{$taxonomy}_row_actions", [ $this, 'add_purge_term_link' ], 10, 2 );
}
}
/**
* Adds a link "Purge this cache" in the terms list table
*
* @param array $actions An array of action links to be displayed.
* @param WP_Term $term Term object.
*
* @return array
*/
public function add_purge_term_link( $actions, $term ) {
if ( ! current_user_can( 'rocket_purge_terms' ) ) {
return $actions;
}
$url = wp_nonce_url(
admin_url( "admin-post.php?action=purge_cache&type=term-{$term->term_id}&taxonomy={$term->taxonomy}" ),
"purge_cache_term-{$term->term_id}"
);
$actions['rocket_purge'] = sprintf(
'<a href="%1$s">%2$s</a>',
$url,
__( 'Clear this cache', 'rocket' )
);
return $actions;
}
/**
* Displays the notice for advanced-cache.php permissions
*
* @since 3.6
*
* @return void
*/
public function notice_advanced_cache_permissions() {
$this->advanced_cache->notice_permissions();
}
/**
* Set WP_CACHE constant to true if needed
*
* @since 3.6.1
*
* @return void
*/
public function maybe_set_wp_cache() {
$this->wp_cache->maybe_set_wp_cache();
}
/**
* Displays the notice for wp-config.php permissions
*
* @since 3.6.1
*
* @return void
*/
public function notice_wp_config_permissions() {
$this->wp_cache->notice_wp_config_permissions();
}
/**
* Adds a Site Health check for the WP_CACHE constant value
*
* @since 3.6.1
*
* @param array $tests An array of tests to perform.
* @return array
*/
public function add_wp_cache_status_test( $tests ) {
return $this->wp_cache->add_wp_cache_status_test( $tests );
}
/**
* Regenerate configs.
*
* @return void
*/
public function regenerate_configs() {
rocket_generate_advanced_cache_file();
flush_rocket_htaccess();
rocket_generate_config_file();
}
/**
* Delete old config files.
*
* @return void
*/
public function delete_old_configs() {
$configs = [];
if ( is_multisite() ) {
foreach ( get_sites( [ 'fields' => 'ids' ] ) as $site_id ) {
switch_to_blog( $site_id );
$configs[] = $this->generate_config_path();
restore_current_blog();
}
} else {
$configs[] = $this->generate_config_path();
}
$contents = $this->filesystem->dirlist( WP_ROCKET_CONFIG_PATH );
foreach ( $contents as $content ) {
$content = WP_ROCKET_CONFIG_PATH . $content['name'];
if ( ! preg_match( '#\.php$#', $content ) || ! $this->filesystem->is_file( $content ) || in_array(
$content,
$configs,
true
) ) {
continue;
}
if ( false === strpos( $this->filesystem->get_contents( $content ), '$rocket_cookie_hash' ) ) {
continue;
}
$this->filesystem->delete( $content );
}
}
/**
* Generate the path to the config for the current website.
*
* @return string
*/
protected function generate_config_path() {
$file = get_rocket_parse_url( untrailingslashit( home_url() ) );
$file['path'] = ( ! empty( $file['path'] ) ) ? str_replace( '/', '.', untrailingslashit( $file['path'] ) ) : '';
return WP_ROCKET_CONFIG_PATH . strtolower( $file['host'] ) . $file['path'] . '.php';
}
/**
* Clear cache.
*
* @param string $current_url current URL from the website.
* @param string $old_url old URL from the website.
*
* @return void
*/
public function clear_cache( string $current_url, string $old_url ) {
rocket_clean_files( [ $old_url, $current_url ], null, false );
}
/**
* Regenerate the advanced cache file on update
*
* @param string $new_version New plugin version.
* @param string $old_version Previous plugin version.
*
* @return void
*/
public function on_update( $new_version, $old_version ) {
if ( version_compare( $old_version, '3.16', '>=' ) ) {
return;
}
rocket_generate_advanced_cache_file();
}
/**
* Regenerate config files after importing settings when do_caching_mobile_files is disabled and cach_mobile is enabled.
*
* @param boolean $regenerate_configs Returns whether to regenerate config.
* @return void
*/
public function maybe_regenerate_advanced_cache( bool $regenerate_configs ): void {
if ( ! $regenerate_configs ) {
return;
}
$this->regenerate_configs();
}
}
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