elementor / core / files / assets / files-upload-handler.php

files-upload-handler.php in Elementor Website Builder – more than just a page builder 3.0.1, at core/files/assets/files-upload-handler.php

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1	<?php
2
3	namespace Elementor\Core\Files\Assets;
4
5	if ( ! defined( 'ABSPATH' ) ) {
6	exit; // Exit if accessed directly.
7	}
8
9	abstract class Files_Upload_Handler {
10	const OPTION_KEY = 'elementor_unfiltered_files_upload';
11
12	public function __construct() {
13	add_filter( 'upload_mimes', [ $this, 'support_unfiltered_files_upload' ] );
14	add_filter( 'wp_handle_upload_prefilter', [ $this, 'handle_upload_prefilter' ] );
15	add_filter( 'wp_check_filetype_and_ext', [ $this, 'check_filetype_and_ext' ], 10, 4 );
16	}
17
18	abstract public function get_mime_type();
19
20	abstract public function get_file_type();
21
22	/**
23	* is_elementor_media_upload
24	* @return bool
25	*/
26	private function is_elementor_media_upload() {
27	return isset( $_POST['uploadTypeCaller'] ) && 'elementor-editor-upload' === $_POST['uploadTypeCaller']; // phpcs:ignore
28	}
29
30	/**
31	* @return bool
32	*/
33	final public static function is_enabled() {
34	$enabled = ! ! get_option( self::OPTION_KEY ) && self::file_sanitizer_can_run();
35
36	/**
37	* @deprecated 3.0.0 Use `elementor/document/urls/edit` filter instead.
38	*/
39	$enabled = apply_filters( 'elementor/files/svg/enabled', $enabled );
40
41	/**
42	* Allow Unfiltered Files Upload.
43	*
44	* Determines whether to enable unfiltered file uploads.
45	*
46	* @since 3.0.0
47	*
48	* @param bool $enabled Weather upload is enabled or not.
49	*/
50	$enabled = apply_filters( 'elementor/files/allow_unfiltered_upload', $enabled );
51
52	return $enabled;
53	}
54
55	final public function support_unfiltered_files_upload( $existing_mimes ) {
56	$existing_mimes[ $this->get_file_type() ] = $this->get_mime_type();
57
58	return $existing_mimes;
59	}
60
61	/**
62	* handle_upload_prefilter
63	* @param $file
64	*
65	* @return mixed
66	*/
67	public function handle_upload_prefilter( $file ) {
68	if ( ! $this->is_file_should_handled( $file ) ) {
69	return $file;
70	}
71
72	$ext = pathinfo( $file['name'], PATHINFO_EXTENSION );
73	$file_type = $this->get_file_type();
74	$display_type = strtoupper( $file_type );
75
76	if ( $file_type !== $ext ) {
77	$file['error'] = sprintf( __( 'The uploaded %1$s file is not supported. Please upload a valid %2$s file', 'elementor' ), $ext, $display_type );
78	return $file;
79	}
80
81	if ( ! self::is_enabled() ) {
82	$file['error'] = sprintf( __( '%1$s file is not allowed for security reasons', 'elementor' ), $display_type );
83	return $file;
84	}
85
86	return $file;
87	}
88
89	protected function is_file_should_handled( $file ) {
90	return $this->is_elementor_media_upload() && $this->get_mime_type() === $file['type'];
91	}
92
93	/**
94	* file_sanitizer_can_run
95	* @return bool
96	*/
97	public static function file_sanitizer_can_run() {
98	return class_exists( 'DOMDocument' ) && class_exists( 'SimpleXMLElement' );
99	}
100
101	/**
102	* Check filetype and ext
103	*
104	* A workaround for upload validation which relies on a PHP extension (fileinfo)
105	* with inconsistent reporting behaviour.
106	* ref: https://core.trac.wordpress.org/ticket/39550
107	* ref: https://core.trac.wordpress.org/ticket/40175
108	*
109	* @param $data
110	* @param $file
111	* @param $filename
112	* @param $mimes
113	*
114	* @return mixed
115	*/
116	public function check_filetype_and_ext( $data, $file, $filename, $mimes ) {
117	if ( ! empty( $data['ext'] ) && ! empty( $data['type'] ) ) {
118	return $data;
119	}
120
121	$wp_file_type = wp_check_filetype( $filename, $mimes );
122	$file_type = strtolower( $this->get_file_type() );
123
124	if ( $file_type === $wp_file_type['ext'] ) {
125	$data['ext'] = $file_type;
126	$data['type'] = $this->get_mime_type();
127	}
128
129	return $data;
130	}
131	}
132