JezK

Edit File: litespeed-wpconfig.php

<?php

if ( ! defined( 'WPINC' ) || ! defined( 'ABSPATH' ) ) {
	die;
}

/**
 * wp-config.php is deployed and owned by the Raidboxes platform and must not be
 * written from inside WordPress.
 *
 * LiteSpeed Cache rewrites the WP_CACHE constant whenever its cache setting is
 * enabled. Without this filter it attempts the write and fails with a bare
 * "File ... is not writable", which reads like a broken Box. The filter makes
 * LiteSpeed skip the attempt and report the change as forbidden instead, and
 * the notice below states in plain terms that this is not permitted here.
 */
class RBLitespeedWpConfigPlugin {
	const NOTICE_TRANSIENT = 'rb_litespeed_wpconfig_notice';
	const PLUGIN           = 'litespeed-cache/litespeed-cache.php';

public function __construct() {
		add_filter( 'litespeed_wpconfig_readonly', '__return_true' );
		add_action( 'activated_plugin', array( $this, 'remember_activation' ), 10, 1 );
		add_action( 'admin_notices', array( $this, 'render_notice' ), 10, 0 );
		add_action( 'network_admin_notices', array( $this, 'render_notice' ), 10, 0 );
	}

public function remember_activation( $plugin ) {
		// On Boxes where the platform ships LiteSpeed Cache itself the plugin is
		// banned outright and RBBannedPluginsPlugin already explains why. Adding
		// a wp-config notice on top would only be noise.
		if ( defined( 'RB_LITESPEED_CACHE_PLUGIN' ) && RB_LITESPEED_CACHE_PLUGIN ) {
			return;
		}

if ( self::PLUGIN === $plugin ) {
			set_transient( self::NOTICE_TRANSIENT, 1, MINUTE_IN_SECONDS );
		}
	}

public function render_notice() {
		// Keep the transient until somebody who can act on it sees the notice.
		if ( ! get_transient( self::NOTICE_TRANSIENT ) || ! current_user_can( 'activate_plugins' ) ) {
			return;
		}

delete_transient( self::NOTICE_TRANSIENT );

printf(
			'<div class="notice notice-info"><p><strong>%s</strong> %s</p></div>',
			esc_html( 'LiteSpeed Cache is not allowed to change wp-config.php on this Box.' ),
			esc_html( 'Editing wp-config.php is not permitted on Raidboxes. The WP_CACHE constant is managed by the platform, so LiteSpeed Cache reports the change as forbidden. Nothing needs to be fixed.' )
		);
	}
}

new RBLitespeedWpConfigPlugin();