<?php
/**
 * Prevents PHP execution in directories that should not execute PHP.
 *
 * @package WP_Defender\Component\Security_Tweaks
 */

namespace WP_Defender\Component\Security_Tweaks;

use WP_Error;
use Calotes\Base\Component;
use WP_Defender\Component\Security_Tweaks\Servers\Server;

/**
 * Prevents PHP execution in directories that should not execute PHP.
 */
class Prevent_PHP extends Component {

	/**
	 * Identifier for the security tweak.
	 *
	 * @var string
	 */
	public $slug = 'prevent-php-executed';

	/**
	 * Check whether the issue has been resolved or not.
	 *
	 * @return bool
	 */
	public function check() {
		return Server::create( Server::get_current_server() )->from( $this->slug )->check();
	}

	/**
	 * Here is the code for processing, if the return is true, we add it to resolve list, WP_Error if any error.
	 *
	 * @param  string $current_server  The server on which to apply the configuration.
	 *
	 * @return bool|WP_Error
	 */
	public function process( $current_server ) {
		return Server::create( $current_server )->from( $this->slug )->process();
	}

	/**
	 * This is for un-do stuff that has be done in @process.
	 *
	 * @param  string|null $current_server  The server on which to apply the configuration.
	 *
	 * @return bool|WP_Error
	 */
	public function revert( $current_server = null ) {
		if ( is_null( $current_server ) ) {
			$current_server = Server::get_current_server();
		}

		return Server::create( $current_server )->from( $this->slug )->revert();
	}

	/**
	 * Shield up.
	 *
	 * @return bool
	 */
	public function shield_up() {
		return true;
	}

	/**
	 * Return a summary data of this tweak.
	 *
	 * @return array
	 */
	public function to_array() {
		return array(
			'slug'             => $this->slug,
			'title'            => esc_html__( 'Prevent PHP Execution', 'defender-security' ),
			'errorReason'      => esc_html__( 'PHP execution is currently allowed in all directories.', 'defender-security' ),
			'successReason'    => esc_html__( 'You\'ve disabled PHP execution, good stuff.', 'defender-security' ),
			'misc'             => array(
				'active_server'  => Server::get_current_server(),
				'apache_rules'   => Server::create( 'apache' )->from( $this->slug )->get_rules_for_instruction(),
				'nginx_rules'    => Server::create( 'nginx' )->from( $this->slug )->get_rules(),
				'wp_content_dir' => WP_CONTENT_DIR,
			),
			'bulk_description' => esc_html__(
				'By default, a plugin/theme vulnerability could allow a PHP file to get uploaded into your site\'s directories and in turn execute harmful scripts that can wreak havoc on your website. We will disable PHP execution for you.',
				'defender-security'
			),
			'bulk_title'       => esc_html__( 'PHP Execution', 'defender-security' ),
		);
	}
}