302 lines
7.1 KiB
PHP
302 lines
7.1 KiB
PHP
<?php
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/**
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* Represents a file which can be downloaded.
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*
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* @package WooCommerce\Classes
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* @version 3.0.0
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* @since 3.0.0
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*/
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use Automattic\Jetpack\Constants;
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defined( 'ABSPATH' ) || exit;
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/**
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* Product download class.
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*/
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class WC_Product_Download implements ArrayAccess {
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/**
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* Data array.
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*
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* @since 3.0.0
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* @var array
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*/
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protected $data = array(
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'id' => '',
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'name' => '',
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'file' => '',
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);
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/**
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* Returns all data for this object.
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*
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* @return array
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*/
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public function get_data() {
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return $this->data;
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}
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/**
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* Get allowed mime types.
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*
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* @return array
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*/
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public function get_allowed_mime_types() {
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return apply_filters( 'woocommerce_downloadable_file_allowed_mime_types', get_allowed_mime_types() );
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}
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/**
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* Get type of file path set.
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*
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* @param string $file_path optional.
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* @return string absolute, relative, or shortcode.
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*/
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public function get_type_of_file_path( $file_path = '' ) {
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$file_path = $file_path ? $file_path : $this->get_file();
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$parsed_url = parse_url( $file_path );
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if (
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$parsed_url &&
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isset( $parsed_url['host'] ) && // Absolute url means that it has a host.
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( // Theoretically we could permit any scheme (like ftp as well), but that has not been the case before. So we allow none or http(s).
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! isset( $parsed_url['scheme'] ) ||
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in_array( $parsed_url['scheme'], array( 'http', 'https' ) )
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)
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) {
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return 'absolute';
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} elseif ( '[' === substr( $file_path, 0, 1 ) && ']' === substr( $file_path, -1 ) ) {
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return 'shortcode';
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} else {
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return 'relative';
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}
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}
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/**
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* Get file type.
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*
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* @return string
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*/
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public function get_file_type() {
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$type = wp_check_filetype( strtok( $this->get_file(), '?' ), $this->get_allowed_mime_types() );
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return $type['type'];
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}
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/**
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* Get file extension.
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*
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* @return string
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*/
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public function get_file_extension() {
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$parsed_url = wp_parse_url( $this->get_file(), PHP_URL_PATH );
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return pathinfo( $parsed_url, PATHINFO_EXTENSION );
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}
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/**
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* Check if file is allowed.
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*
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* @return boolean
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*/
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public function is_allowed_filetype() {
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$file_path = $this->get_file();
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// File types for URL-based files located on the server should get validated.
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$parsed_file_path = WC_Download_Handler::parse_file_path( $file_path );
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$is_file_on_server = ! $parsed_file_path['remote_file'];
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$file_path_type = $this->get_type_of_file_path( $file_path );
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// Shortcodes are allowed, validations should be done by the shortcode provider in this case.
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if ( 'shortcode' === $file_path_type ) {
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return true;
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}
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// Remote paths are allowed.
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if ( ! $is_file_on_server && 'relative' !== $file_path_type ) {
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return true;
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}
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// On windows system, local files ending with `.` are not allowed.
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// @link https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file?redirectedfrom=MSDN#naming-conventions.
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if ( $is_file_on_server && ! $this->get_file_extension() && 'WIN' === strtoupper( substr( Constants::get_constant( 'PHP_OS' ), 0, 3 ) ) ) {
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if ( '.' === substr( $file_path, -1 ) ) {
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return false;
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}
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}
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return ! $this->get_file_extension() || in_array( $this->get_file_type(), $this->get_allowed_mime_types(), true );
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}
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/**
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* Validate file exists.
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*
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* @return boolean
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*/
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public function file_exists() {
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if ( 'relative' !== $this->get_type_of_file_path() ) {
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return true;
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}
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$file_url = $this->get_file();
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if ( '..' === substr( $file_url, 0, 2 ) || '/' !== substr( $file_url, 0, 1 ) ) {
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$file_url = realpath( ABSPATH . $file_url );
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} elseif ( substr( WP_CONTENT_DIR, strlen( untrailingslashit( ABSPATH ) ) ) === substr( $file_url, 0, strlen( substr( WP_CONTENT_DIR, strlen( untrailingslashit( ABSPATH ) ) ) ) ) ) {
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$file_url = realpath( WP_CONTENT_DIR . substr( $file_url, 11 ) );
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}
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return apply_filters( 'woocommerce_downloadable_file_exists', file_exists( $file_url ), $this->get_file() );
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}
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/*
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|--------------------------------------------------------------------------
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| Setters
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|--------------------------------------------------------------------------
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*/
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/**
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* Set ID.
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*
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* @param string $value Download ID.
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*/
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public function set_id( $value ) {
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$this->data['id'] = wc_clean( $value );
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}
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/**
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* Set name.
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*
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* @param string $value Download name.
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*/
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public function set_name( $value ) {
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$this->data['name'] = wc_clean( $value );
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}
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/**
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* Set previous_hash.
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*
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* @deprecated 3.3.0 No longer using filename based hashing to keep track of files.
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* @param string $value Previous hash.
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*/
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public function set_previous_hash( $value ) {
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wc_deprecated_function( __FUNCTION__, '3.3' );
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$this->data['previous_hash'] = wc_clean( $value );
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}
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/**
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* Set file.
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*
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* @param string $value File URL/Path.
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*/
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public function set_file( $value ) {
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// A `///` is recognized as an "absolute", but on the filesystem, so it bypasses the mime check in `self::is_allowed_filetype`.
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// This will strip extra prepending / to the maximum of 2.
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if ( preg_match( '#^//+(/[^/].+)$#i', $value, $matches ) ) {
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$value = $matches[1];
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}
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switch ( $this->get_type_of_file_path( $value ) ) {
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case 'absolute':
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$this->data['file'] = esc_url_raw( $value );
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break;
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default:
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$this->data['file'] = wc_clean( $value );
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break;
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}
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}
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/*
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|--------------------------------------------------------------------------
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| Getters
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|--------------------------------------------------------------------------
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*/
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/**
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* Get id.
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*
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* @return string
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*/
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public function get_id() {
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return $this->data['id'];
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}
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/**
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* Get name.
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*
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* @return string
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*/
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public function get_name() {
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return $this->data['name'];
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}
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/**
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* Get previous_hash.
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*
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* @deprecated 3.3.0 No longer using filename based hashing to keep track of files.
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* @return string
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*/
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public function get_previous_hash() {
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wc_deprecated_function( __FUNCTION__, '3.3' );
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return $this->data['previous_hash'];
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}
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/**
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* Get file.
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*
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* @return string
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*/
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public function get_file() {
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return $this->data['file'];
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}
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/*
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|--------------------------------------------------------------------------
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| ArrayAccess/Backwards compatibility.
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|--------------------------------------------------------------------------
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*/
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/**
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* OffsetGet.
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*
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* @param string $offset Offset.
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* @return mixed
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*/
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public function offsetGet( $offset ) {
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switch ( $offset ) {
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default:
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if ( is_callable( array( $this, "get_$offset" ) ) ) {
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return $this->{"get_$offset"}();
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}
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break;
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}
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return '';
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}
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/**
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* OffsetSet.
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*
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* @param string $offset Offset.
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* @param mixed $value Offset value.
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*/
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public function offsetSet( $offset, $value ) {
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switch ( $offset ) {
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default:
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if ( is_callable( array( $this, "set_$offset" ) ) ) {
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return $this->{"set_$offset"}( $value );
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}
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break;
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}
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}
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/**
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* OffsetUnset.
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*
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* @param string $offset Offset.
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*/
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public function offsetUnset( $offset ) {}
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/**
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* OffsetExists.
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*
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* @param string $offset Offset.
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* @return bool
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*/
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public function offsetExists( $offset ) {
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return in_array( $offset, array_keys( $this->data ), true );
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}
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}
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