Pretty Permalink Support!

Do you confirm this solution?
Process:

<?php
/**
 * Delightful Downloads Process Download
 *
 * @package     Delightful Downloads
 * @subpackage  Includes/Process Downloads
 * @since       1.0
*/

// Exit if accessed directly
if ( !defined( 'ABSPATH' ) ) exit;

/**
 * Process Download
 *
 * Validate download and send file to user
 * https://www.richnetapps.com/php-download-script-with-resume-option/
 *
 * @since 1.0
 */
function dedo_download_process() {
	global $dedo_options;

	$url 		= explode( $dedo_options['download_url'] . '/' , $_SERVER["REQUEST_URI"]);
	$download_id 	= absint($url[1]);

	// Get download id
	if (  $download_id != '' ) {

		// Check valid download
		if ( !dedo_download_valid( $download_id ) ) {
			do_action( 'ddownload_download_invalid', $download_id );
			wp_die( __( 'Invalid download.', 'delightful-downloads' ) );
		}

		// Check blocked user agents
		if ( !dedo_download_blocked( $_SERVER['HTTP_USER_AGENT'] ) ) {
			do_action( 'ddownload_download_blocked', $download_id );
			wp_die( __( 'You are blocked from downloading this file!', 'delightful-downloads' ) );
		}

		// Get file meta
		$download_url = get_post_meta( $download_id, '_dedo_file_url', true );
		$options = get_post_meta( $download_id, '_dedo_file_options', true );

		// Check for members only
		if ( !dedo_download_permission( $options ) ) {
			do_action( 'ddownload_download_permission', $download_id );

			// Get redirect location
			$location = ( isset( $options['members_only_redirect'] ) ) ? $options['members_only_redirect'] : $dedo_options['members_only_redirect'];

			// Try to redirect
			if ( $location = get_permalink( $location ) ) {
				wp_redirect( $location );
				exit();
			}
			else {
				// Invalid page provided, show error message
				wp_die( __( 'Please login to download this file!', 'delightful-downloads' ) );
			}
		}

		// Password protected
		if ( post_password_required( $download_id ) ) {
			wp_die( get_the_password_form( $download_id ), __( 'Password Required', 'delightful-downloads' ) );
		}

		// Empty file urls not allowed
		if ( '' === $download_url ) {
			wp_die( __( 'You must attach a file to this download.', 'delightful-downloads' ) );
		}

		// Stop page caching. Cause conflicts with WP Super Cache
		define( 'DONOTCACHEPAGE', true );	

		// Disable php notices, can cause corrupt downloads
		@ini_set( 'display_errors', 0 );

		// Disable compression
		if ( function_exists( 'apache_setenv' ) ) {
			@apache_setenv( 'no-gzip', 1 );
		}

		@ini_set( 'zlib.output_compression', 'Off' );

		// Close sessions, which can sometimes cause buffering errors??
		@session_write_close();

		/**
		 * Output Buffering
		 *
		 * The majority of servers work when clearing output buffering.
		 * If you get corrupt or blank downloads try the following:
		 *
		 * Disable by adding the following, to your theme's functions.php file:
		 *
		 * add_filter( 'dedo_clear_output_buffers', '__return_false' );
		 *
		 */
		if ( apply_filters( 'dedo_clear_output_buffers', true ) ) {

			do {
				@ob_end_clean();
			} while ( ob_get_level() > 0 );
		}

		// Disable max_execution_time
		set_time_limit( 0 );

		// Hook before download starts
		do_action( 'ddownload_download_before', $download_id );

		// Open in browser
		$open_browser = ( isset( $options['open_browser'] ) ) ? $options['open_browser'] : $dedo_options['open_browser'];

		if ( $open_browser ) {
			header( "Location: $download_url" );
			exit();
		}

		// Convert to path
		if ( $download_path = dedo_get_abs_path( $download_url ) ) {

			// Try to open file, else display server error
			if ( !$file = @fopen( $download_path, 'rb' ) ) {

				// Server error
				wp_die( __( 'Server error, file cannot be opened!', 'delightful-downloads' ) );
			}

			// Set headers
			nocache_headers();
			header( "X-Robots-Tag: noindex, nofollow", true );
			header( "Content-Type: " . dedo_download_mime( $download_path ) );
			header( "Content-Description: File Transfer" );
			header( "Content-Disposition: attachment; filename=\"" . basename( $download_path ) . "\";" );
			header( "Content-Transfer-Encoding: binary" );
			header( "Content-Length: " . @filesize( $download_path ) ); // filesize causes blank downloads on Windows servers

			// Output file in chuncks
			while ( !feof( $file ) ) {

				print fread( $file, 1024 * 1024 );
				flush();

				// Check conection, if lost close file and end loop
				if ( connection_status() != 0 ) {

					fclose( $file );
					exit();
				}
			}

			// Reached end of file, close it. Job done!
			fclose( $file );

			// Hook when download complete
			do_action( 'ddownload_download_complete', $download_id );

			// Done! Exit
			exit();
		}
		else {

			// No disoverable path, redirect to file
			header( "Location: $download_url" );
			exit();
		}

	}

}
add_action( 'init', 'dedo_download_process', 0 );

functions:

function dedo_download_link( $id ) {
	 global $dedo_options;

	 $output = esc_html( home_url( '/' . $dedo_options['download_url'] . '/' . $id ) );
	 return apply_filters( 'dedo_download_link', $output );
}