includes/class-wc-product-download.php
<?php
/**
* Represents a file which can be downloaded.
*
* @package WooCommerce\Classes
* @version 3.0.0
* @since 3.0.0
*/
defined( 'ABSPATH' ) || exit;
/**
* Product download class.
*/
class WC_Product_Download implements ArrayAccess {
/**
* Data array.
*
* @since 3.0.0
* @var array
*/
protected $data = array(
'id' => '',
'name' => '',
'file' => '',
);
/**
* Returns all data for this object.
*
* @return array
*/
public function get_data() {
return $this->data;
}
/**
* Get allowed mime types.
*
* @return array
*/
public function get_allowed_mime_types() {
return apply_filters( 'woocommerce_downloadable_file_allowed_mime_types', get_allowed_mime_types() );
}
/**
* Get type of file path set.
*
* @param string $file_path optional.
* @return string absolute, relative, or shortcode.
*/
public function get_type_of_file_path( $file_path = '' ) {
$file_path = $file_path ? $file_path : $this->get_file();
$parsed_url = parse_url( $file_path );
if (
$parsed_url &&
isset( $parsed_url['host'] ) && // Absolute url means that it has a host.
( // 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).
! isset( $parsed_url['scheme'] ) ||
in_array( $parsed_url['scheme'], array( 'http', 'https' ) )
)
) {
return 'absolute';
} elseif ( '[' === substr( $file_path, 0, 1 ) && ']' === substr( $file_path, -1 ) ) {
return 'shortcode';
} else {
return 'relative';
}
}
/**
* Get file type.
*
* @return string
*/
public function get_file_type() {
$type = wp_check_filetype( strtok( $this->get_file(), '?' ), $this->get_allowed_mime_types() );
return $type['type'];
}
/**
* Get file extension.
*
* @return string
*/
public function get_file_extension() {
$parsed_url = wp_parse_url( $this->get_file(), PHP_URL_PATH );
return pathinfo( $parsed_url, PATHINFO_EXTENSION );
}
/**
* Check if file is allowed.
*
* @return boolean
*/
public function is_allowed_filetype() {
$file_path = $this->get_file();
// File types for URL-based files located on the server should get validated.
$is_file_on_server = false;
if ( false !== stripos( $file_path, network_site_url( '/', 'https' ) ) ||
false !== stripos( $file_path, network_site_url( '/', 'http' ) ) ||
false !== stripos( $file_path, site_url( '/', 'https' ) ) ||
false !== stripos( $file_path, site_url( '/', 'http' ) )
) {
$is_file_on_server = true;
}
if ( ! $is_file_on_server && 'relative' !== $this->get_type_of_file_path() ) {
return true;
}
return ! $this->get_file_extension() || in_array( $this->get_file_type(), $this->get_allowed_mime_types(), true );
}
/**
* Validate file exists.
*
* @return boolean
*/
public function file_exists() {
if ( 'relative' !== $this->get_type_of_file_path() ) {
return true;
}
$file_url = $this->get_file();
if ( '..' === substr( $file_url, 0, 2 ) || '/' !== substr( $file_url, 0, 1 ) ) {
$file_url = realpath( ABSPATH . $file_url );
} elseif ( substr( WP_CONTENT_DIR, strlen( untrailingslashit( ABSPATH ) ) ) === substr( $file_url, 0, strlen( substr( WP_CONTENT_DIR, strlen( untrailingslashit( ABSPATH ) ) ) ) ) ) {
$file_url = realpath( WP_CONTENT_DIR . substr( $file_url, 11 ) );
}
return apply_filters( 'woocommerce_downloadable_file_exists', file_exists( $file_url ), $this->get_file() );
}
/*
|--------------------------------------------------------------------------
| Setters
|--------------------------------------------------------------------------
*/
/**
* Set ID.
*
* @param string $value Download ID.
*/
public function set_id( $value ) {
$this->data['id'] = wc_clean( $value );
}
/**
* Set name.
*
* @param string $value Download name.
*/
public function set_name( $value ) {
$this->data['name'] = wc_clean( $value );
}
/**
* Set previous_hash.
*
* @deprecated 3.3.0 No longer using filename based hashing to keep track of files.
* @param string $value Previous hash.
*/
public function set_previous_hash( $value ) {
wc_deprecated_function( __FUNCTION__, '3.3' );
$this->data['previous_hash'] = wc_clean( $value );
}
/**
* Set file.
*
* @param string $value File URL/Path.
*/
public function set_file( $value ) {
// A `///` is recognized as an "absolute", but on the filesystem, so it bypasses the mime check in `self::is_allowed_filetype`.
// This will strip extra prepending / to the maximum of 2.
if ( preg_match( '#^//+(/[^/].+)$#i', $value, $matches ) ) {
$value = $matches[1];
}
switch ( $this->get_type_of_file_path( $value ) ) {
case 'absolute':
$this->data['file'] = esc_url_raw( $value );
break;
default:
$this->data['file'] = wc_clean( $value );
break;
}
}
/*
|--------------------------------------------------------------------------
| Getters
|--------------------------------------------------------------------------
*/
/**
* Get id.
*
* @return string
*/
public function get_id() {
return $this->data['id'];
}
/**
* Get name.
*
* @return string
*/
public function get_name() {
return $this->data['name'];
}
/**
* Get previous_hash.
*
* @deprecated 3.3.0 No longer using filename based hashing to keep track of files.
* @return string
*/
public function get_previous_hash() {
wc_deprecated_function( __FUNCTION__, '3.3' );
return $this->data['previous_hash'];
}
/**
* Get file.
*
* @return string
*/
public function get_file() {
return $this->data['file'];
}
/*
|--------------------------------------------------------------------------
| ArrayAccess/Backwards compatibility.
|--------------------------------------------------------------------------
*/
/**
* OffsetGet.
*
* @param string $offset Offset.
* @return mixed
*/
public function offsetGet( $offset ) {
switch ( $offset ) {
default:
if ( is_callable( array( $this, "get_$offset" ) ) ) {
return $this->{"get_$offset"}();
}
break;
}
return '';
}
/**
* OffsetSet.
*
* @param string $offset Offset.
* @param mixed $value Offset value.
*/
public function offsetSet( $offset, $value ) {
switch ( $offset ) {
default:
if ( is_callable( array( $this, "set_$offset" ) ) ) {
return $this->{"set_$offset"}( $value );
}
break;
}
}
/**
* OffsetUnset.
*
* @param string $offset Offset.
*/
public function offsetUnset( $offset ) {}
/**
* OffsetExists.
*
* @param string $offset Offset.
* @return bool
*/
public function offsetExists( $offset ) {
return in_array( $offset, array_keys( $this->data ), true );
}
}