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File Content: `class-secupress-scan-bad-config-files.php`

<?php
defined( 'ABSPATH' ) or die( 'Something went wrong.' );

/**
 * Bad Config Files scan class.
 *
 * @package SecuPress
 * @subpackage SecuPress_Scan
 * @since 1.0
 */
class SecuPress_Scan_Bad_Config_Files extends SecuPress_Scan implements SecuPress_Scan_Interface {

	/** Constants. ============================================================================== */

	/**
	 * Class version.
	 *
	 * @var (string)
	 */
	const VERSION = '1.2';


	/** Properties. ============================================================================= */

	/**
	 * The reference to the *Singleton* instance of this class.
	 *
	 * @var (object)
	 */
	protected static $_instance;


	/** Init and messages. ====================================================================== */

	/**
	 * Init.
	 *
	 * @since 1.0
	 */
	protected function init() {
		$this->title    = __( 'Check if your installation contains backed up <code>wp-config.php</code> files like <code>wp-config.bak</code>, <code>wp-config.old</code> etc.', 'secupress' );
		$this->more     = __( 'Some attackers will try to find some backed up config files to try to steal them. Prevent this kind of attack simply by removing them.', 'secupress' );
		$this->more_fix = __( 'Rename all the <code>wp-config.bak/.old</code> files using a random name and still using the <code>.php</code> extension to prevent being downloaded.', 'secupress' );
	}


	/**
	 * Get messages.
	 *
	 * @since 1.0
	 *
	 * @param (int) $message_id A message ID.
	 *
	 * @return (string|array) A message if a message ID is provided. An array containing all messages otherwise.
	 */
	public static function get_messages( $message_id = null ) {
		$messages = array(
			// "good"
			0   => __( 'You don’t have backed up <code>wp-config</code> files.', 'secupress' ),
			1   => _n_noop( 'Your backed up <code>wp-config.php</code> file was successfully suffixed with %s.', 'Your backed up <code>wp-config.php</code> files were successfully suffixed with %s.', 'secupress' ),
			// "warning"
			100 => _n_noop( '%1$d backed up <code>wp-config.php</code> file was successfully suffixed with %2$s.', '%1$d backed up <code>wp-config.php</code> files were successfully suffixed with %2$s.', 'secupress' ),
			101 => _n_noop( 'Sorry, this file could not be renamed: %s', 'Sorry, those files could not be renamed: %s', 'secupress' ),
			// "bad"
			200 => _n_noop( 'Your installation should not contain this backed up <strong>wp-config.php</strong> file: %s.', 'Your installation should not contain these backed up <strong>wp-config.php</strong> files: %s.', 'secupress' ),
			201 => _n_noop( 'Sorry, the backed up <code>wp-config.php</code> file could not be renamed.', 'Sorry, the backed up <code>wp-config.php</code> files could not be renamed.', 'secupress' ),
		);

		if ( isset( $message_id ) ) {
			return isset( $messages[ $message_id ] ) ? $messages[ $message_id ] : __( 'Unknown message', 'secupress' );
		}

		return $messages;
	}


	/** Getters. ================================================================================ */

	/**
	 * Get the documentation URL.
	 *
	 * @since 1.2.3
	 *
	 * @return (string)
	 */
	public static function get_docs_url() {
		return __( 'https://docs.secupress.me/article/96-wp-config-php-file-backups-scan', 'secupress' );
	}


	/** Scan. =================================================================================== */

	/**
	 * Scan for flaw(s).
	 *
	 * @since 1.0
	 *
	 * @return (array) The scan results.
	 */
	public function scan() {

		$activated = $this->filter_scanner( __CLASS__ );
		if ( true === $activated ) {
			$this->add_message( 0 );
			return parent::scan();
		}

		$files = static::get_files();

		if ( $files ) {
			// "bad"
			$files = self::wrap_in_tag( $files );
			$this->add_message( 200, array( count( $files ), $files ) );
		} else {
			// "good"
			$this->add_message( 0 );
		}

		return parent::scan();
	}


	/** Fix. ==================================================================================== */

	/**
	 * Try to fix the flaw(s).
	 *
	 * @since 1.4.5
	 *
	 * @return (array) The fix results.
	 */
	public function need_manual_fix() {
		return [ 'fix' => 'fix' ];
	}

	/**
	 * Get an array containing ALL the forms that would fix the scan if it requires user action.
	 *
	 * @since 1.4.5
	 *
	 * @return (array) An array of HTML templates (form contents most of the time).
	 */
	protected function get_fix_action_template_parts() {
		return [ 'fix' => '&nbsp;' ];
	}

	/**
	 * Try to fix the flaw(s) after requiring user action.
	 *
	 * @since 1.4.5
	 *
	 * @return (array) The fix results.
	 */
	public function manual_fix() {
		if ( $this->has_fix_action_part( 'fix' ) ) {
			$this->fix();
		}
		// "good"
		$this->add_fix_message( 1, __( 'a safe file extension', 'secupress' ) );
		return parent::manual_fix();
	}

	/**
	 * Try to fix the flaw(s).
	 *
	 * @since 1.0
	 *
	 * @return (array) The fix results.
	 */
	public function fix() {
		$files = static::get_files();

		// Should not happen.
		if ( ! $files ) {
			// "good"
			$this->add_fix_message( 0 );
			return parent::fix();
		}

		$wp_filesystem = secupress_get_filesystem();
		$count_all     = count( $files );
		$renamed       = array();
		$suffix        = '.' . time() . '.secupress.php';

		// Rename the files.
		foreach ( $files as $filename ) {
			$new_file = ABSPATH . $filename . $suffix;

			if ( $wp_filesystem->move( ABSPATH . $filename, $new_file ) ) {
				$wp_filesystem->chmod( $new_file, FS_CHMOD_FILE );
				// Counting the renamed files is safer that counting the not renamed ones.
				$renamed[] = $filename;
			}
		}

		$count_renamed = count( $renamed );

		if ( $count_renamed === $count_all ) {
			// "good": all files were renamed.
			$this->add_fix_message( 1, array( $count_all, '<code>' . $suffix . '</code>' ) );
		} elseif ( $count_renamed ) {
			// "warning": some files could not be renamed.
			$not_renamed = array_diff( $files, $renamed );
			$not_renamed = static::wrap_in_tag( $not_renamed );

			$this->add_fix_message( 100, array( $count_renamed, $count_renamed, '<code>' . $suffix . '</code>' ) );
			$this->add_fix_message( 101, array( count( $not_renamed ), $not_renamed ) );
		}
		else {
			// "bad": no files could not be renamed.
			$this->add_fix_message( 201, array( $count_all ) );
		}

		return parent::fix();
	}


	/** Tools. ================================================================================== */

	/**
	 * Get config files.
	 *
	 * @since 1.0
	 *
	 * @return (array) An array of file names.
	 */
	protected static function get_files() {
		$files = glob( ABSPATH . '*wp-config*.*' );
		$files = array_map( 'basename', $files );

		foreach ( $files as $k => $file ) {
			if ( 'php' === pathinfo( $file, PATHINFO_EXTENSION ) ) {
				unset( $files[ $k ] );
			}
		}

		return $files;
	}
}

Name	Size	Permission
class-secupress-scan-admin-user.php	11163 bytes	0644
class-secupress-scan-auto-update.php	8307 bytes	0644
class-secupress-scan-bad-config-files.php	6820 bytes	0644
class-secupress-scan-bad-file-extensions.php	10841 bytes	0644
class-secupress-scan-bad-old-files.php	5834 bytes	0644
class-secupress-scan-bad-old-plugins.php	28686 bytes	0644
class-secupress-scan-bad-request-methods.php	5590 bytes	0644
class-secupress-scan-bad-url-access.php	9461 bytes	0644
class-secupress-scan-bad-user-agent.php	5424 bytes	0644
class-secupress-scan-bad-usernames.php	5640 bytes	0644
class-secupress-scan-bad-vuln-plugins.php	8579 bytes	0644
class-secupress-scan-chmods.php	10942 bytes	0644
class-secupress-scan-core-update.php	6257 bytes	0644
class-secupress-scan-db-prefix.php	9916 bytes	0644
class-secupress-scan-directory-listing.php	9202 bytes	0644
class-secupress-scan-discloses.php	18508 bytes	0644
class-secupress-scan-easy-login.php	5278 bytes	0644
class-secupress-scan-https.php	8735 bytes	0644
class-secupress-scan-inactive-plugins-themes.php	21581 bytes	0644
class-secupress-scan-login-errors-disclose.php	4833 bytes	0644
class-secupress-scan-passwords-strength.php	6194 bytes	0644
class-secupress-scan-php-404.php	4768 bytes	0644
class-secupress-scan-php-disclosure.php	9027 bytes	0644
class-secupress-scan-phpversion.php	4316 bytes	0644
class-secupress-scan-plugins-update.php	7140 bytes	0644
class-secupress-scan-readme-discloses.php	10676 bytes	0644
class-secupress-scan-salt-keys.php	7316 bytes	0644
class-secupress-scan-shellshock.php	7317 bytes	0644
class-secupress-scan-sqli.php	5034 bytes	0644
class-secupress-scan-subscription.php	10080 bytes	0644
class-secupress-scan-themes-update.php	7065 bytes	0644
class-secupress-scan-woocommerce-discloses.php	7260 bytes	0644
class-secupress-scan-wp-config.php	12860 bytes	0644
class-secupress-scan-wpml-discloses.php	7190 bytes	0644
class-secupress-scan-wporg.php	3714 bytes	0644
class-secupress-scan.php	34265 bytes	0644

File Content: class-secupress-scan-bad-config-files.php

File Content: `class-secupress-scan-bad-config-files.php`