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<?php /** * File related helper utilities. * * @package WP_Defender\Helper */ namespace WP_Defender\Helper; use WP_Error; /** * Handles file related tasks. */ class File { /** * Check is two files identical. * * @param string $local_file File path of the local file for content comparison. * @param string $remote_file Url of the remote file for content comparison. * * @return bool|string|WP_Error If remote fetch fails return WP_Error object or * true for identical file content or false for non-identical file content. */ public function is_identical_content( string $local_file, string $remote_file ) { wp_raise_memory_limit(); $local_file_content = file( $local_file, FILE_IGNORE_NEW_LINES ); $tmp = download_url( $remote_file ); if ( is_wp_error( $tmp ) ) { return $tmp; } $remote_file_content = file( $tmp, FILE_IGNORE_NEW_LINES ); wp_delete_file( $tmp ); return $local_file_content === $remote_file_content; } /** * Deny access for the provided directory. * * @param string $directory File path to the directory. * * @since 4.2.0 */ public function maybe_dir_access_deny( string $directory ) { global $wp_filesystem; // Initialize the WP filesystem, no more using 'file-put-contents' function. if ( empty( $wp_filesystem ) ) { require_once ABSPATH . '/wp-admin/includes/file.php'; WP_Filesystem(); } $files = array( array( 'base' => $directory, 'file' => '.htaccess', 'content' => 'deny from all', ), array( 'base' => $directory, 'file' => 'index.html', 'content' => '', ), ); foreach ( $files as $file ) { $file_path = trailingslashit( $file['base'] ) . $file['file']; if ( ! is_null( $file_path ) && ! file_exists( $file_path ) ) { $wp_filesystem->put_contents( $file_path, $file['content'] ); } } } }