elementor / core / files / uploads-manager.php

uploads-manager.php in Elementor Website Builder – more than just a page builder 3.35.8, at core/files/uploads-manager.php

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1	<?php
2	namespace Elementor\Core\Files;
3
4	use Elementor\Core\Base\Base_Object;
5	use Elementor\Core\Common\Modules\Ajax\Module as Ajax;
6	use Elementor\Core\Files\File_Types\Base as File_Type_Base;
7	use Elementor\Core\Files\File_Types\Json;
8	use Elementor\Core\Files\File_Types\Svg;
9	use Elementor\Core\Files\File_Types\Zip;
10	use Elementor\Core\Files\Fonts\Google_Font;
11	use Elementor\Core\Utils\Exceptions;
12	use Elementor\Fonts;
13	use Elementor\User;
14
15	if ( ! defined( 'ABSPATH' ) ) {
16	exit; // Exit if accessed directly.
17	}
18
19	/**
20	* Elementor uploads manager.
21	*
22	* Elementor uploads manager handler class is responsible for handling file uploads that are not done with WP Media.
23	*
24	* @since 3.3.0
25	*/
26	class Uploads_Manager extends Base_Object {
27
28	const UNFILTERED_FILE_UPLOADS_KEY = 'elementor_unfiltered_files_upload';
29	const INVALID_FILE_CONTENT = 'Invalid Content In File';
30	const ELEMENTOR_UPLOAD_DIR = 'elementor';
31
32	/**
33	* @var File_Type_Base[]
34	*/
35	private $file_type_handlers = [];
36
37	private $allowed_file_extensions;
38
39	/**
40	* @var bool
41	*/
42	private $is_elementor_upload = false;
43
44	/**
45	* @var string
46	*/
47	private $temp_dir;
48
49	/**
50	* Register File Types
51	*
52	* To Add a new file type to Elementor, with its own handling logic, you need to add it to the $file_types array here.
53	*
54	* @since 3.3.0
55	* @access public
56	*/
57	public function register_file_types() {
58	// All file types that have handlers should be included here.
59	$file_types = [
60	'json' => new Json(),
61	'zip' => new Zip(),
62	'svg' => new Svg(),
63	];
64
65	foreach ( $file_types as $file_type => $file_handler ) {
66	$this->file_type_handlers[ $file_type ] = $file_handler;
67	}
68	}
69
70	/**
71	* Extract and Validate Zip
72	*
73	* This method accepts a $file array (which minimally should include a 'tmp_name')
74	*
75	* @since 3.3.0
76	* @access public
77	*
78	* @param string $file_path
79	* @param array $allowed_file_types
80	* @return array\|\WP_Error
81	*/
82	public function extract_and_validate_zip( $file_path, $allowed_file_types = null ) {
83	$result = [];
84
85	/** @var Zip $zip_handler - File Type */
86	$zip_handler = $this->file_type_handlers['zip'];
87
88	// Returns an array of file paths.
89	$extracted = $zip_handler->extract( $file_path, $allowed_file_types );
90
91	if ( is_wp_error( $extracted ) ) {
92	return $extracted;
93	}
94
95	// If there are no extracted file names, no files passed the extraction validation.
96	if ( empty( $extracted['files'] ) ) {
97	// TODO: Decide what to do if no files passed the extraction validation
98	return new \WP_Error( 'file_error', self::INVALID_FILE_CONTENT );
99	}
100
101	$result['extraction_directory'] = $extracted['extraction_directory'];
102
103	foreach ( $extracted['files'] as $extracted_file_path ) {
104	// Each file is an array with a 'name' (file path) property.
105	if ( ! is_wp_error( $this->validate_file( [ 'tmp_name' => $extracted_file_path ] ) ) ) {
106	$result['files'][] = $extracted_file_path;
107	}
108	}
109
110	return $result;
111	}
112
113	/**
114	* Handle Elementor Upload
115	*
116	* This method receives a $file array. If the received file is a Base64 string, the $file array should include a
117	* 'fileData' property containing the string, which is decoded and has its contents stored in a temporary file.
118	* If the $file parameter passed is a standard $file array, the 'name' and 'tmp_name' properties are used for
119	* validation.
120	*
121	* The file goes through validation; if it passes validation, the file is returned. Otherwise, an error is returned.
122	*
123	* @since 3.3.0
124	* @access public
125	*
126	* @param array $data
127	* @param array $allowed_file_extensions Optional. an array of file types that are allowed to pass validation for each
128	* upload.
129	* @return array\|\WP_Error
130	*/
131	public function handle_elementor_upload( array $data, $allowed_file_extensions = null ) {
132	// If $file['fileData'] is set, it signals that the passed file is a Base64 string that needs to be decoded and
133	// saved to a temporary file.
134	if ( isset( $data['fileData'] ) ) {
135	$data = $this->save_base64_to_tmp_file( $data, $allowed_file_extensions );
136	}
137
138	if ( is_wp_error( $data ) ) {
139	return $data;
140	}
141
142	if ( ! isset( $data['fileData'] ) ) {
143	if ( empty( $data['tmp_name'] ) ) {
144	return new \WP_Error( 'file_error', esc_html__( 'Invalid temporary file path.', 'elementor' ) );
145	}
146
147	if ( ! $this->is_path_in_allowed_dir( $data['tmp_name'] ) ) {
148	return new \WP_Error( 'file_error', esc_html__( 'Invalid temporary file path.', 'elementor' ) );
149	}
150	}
151
152	$validation_result = $this->validate_file( $data, $allowed_file_extensions );
153
154	if ( is_wp_error( $validation_result ) ) {
155	if ( ! empty( $data['tmp_name'] ) ) {
156	$this->remove_file_or_dir( dirname( $data['tmp_name'] ) );
157	}
158
159	return $validation_result;
160	}
161
162	return $data;
163	}
164
165	/**
166	* Is Unfiltered Uploads Enabled
167	*
168	* @since 3.5.0
169	* @access public
170	*
171	* @return bool
172	*/
173	final public static function are_unfiltered_uploads_enabled() {
174	$enabled = (bool) get_option( self::UNFILTERED_FILE_UPLOADS_KEY )
175	&& Svg::file_sanitizer_can_run()
176	&& User::is_current_user_can_upload_json();
177
178	/**
179	* Allow Unfiltered Files Upload.
180	*
181	* Determines whether to enable unfiltered file uploads.
182	*
183	* @since 3.0.0
184	*
185	* @param bool $enabled Whether upload is enabled or not.
186	*/
187	$enabled = apply_filters( 'elementor/files/allow_unfiltered_upload', $enabled );
188
189	return $enabled;
190	}
191
192	/**
193	* Handle Elementor WP Media Upload
194	*
195	* Runs on the 'wp_handle_upload_prefilter' filter.
196	*
197	* @since 3.2.0
198	* @access public
199	*
200	* @param $file
201	* @return mixed
202	*/
203	public function handle_elementor_wp_media_upload( $file ) {
204	// If it isn't a file uploaded by Elementor, we do not intervene.
205	if ( ! $this->is_elementor_wp_media_upload() ) {
206	return $file;
207	}
208
209	$result = $this->validate_file( $file );
210
211	if ( is_wp_error( $result ) ) {
212	$file['error'] = $result->get_error_message();
213	}
214
215	return $file;
216	}
217
218	/**
219	* Get File Type Handler
220	*
221	* Initialize the proper file type handler according to the file extension
222	* and assign it to the file type handlers array.
223	*
224	* @since 3.3.0
225	* @access public
226	*
227	* @param string\|null $file_extension - file extension
228	* @return File_Type_Base[]\|File_Type_Base
229	*/
230	public function get_file_type_handlers( $file_extension = null ) {
231	return self::get_items( $this->file_type_handlers, $file_extension );
232	}
233
234	/**
235	* Check filetype and ext
236	*
237	* A workaround for upload validation which relies on a PHP extension (fileinfo)
238	* with inconsistent reporting behaviour.
239	* ref: https://core.trac.wordpress.org/ticket/39550
240	* ref: https://core.trac.wordpress.org/ticket/40175
241	*
242	* @since 3.5.0
243	* @access public
244	*
245	* @param $data
246	* @param $file
247	* @param $filename
248	* @param $mimes
249	*
250	* @return mixed
251	*/
252	public function check_filetype_and_ext( $data, $file, $filename, $mimes ) {
253	if ( ! empty( $data['ext'] ) && ! empty( $data['type'] ) ) {
254	return $data;
255	}
256
257	$wp_file_type = wp_check_filetype( $filename, $mimes );
258
259	$file_type_handlers = $this->get_file_type_handlers();
260
261	if ( isset( $file_type_handlers[ $wp_file_type['ext'] ] ) ) {
262	$file_type_handler = $file_type_handlers[ $wp_file_type['ext'] ];
263
264	$data['ext'] = $file_type_handler->get_file_extension();
265	$data['type'] = $file_type_handler->get_mime_type();
266	}
267
268	return $data;
269	}
270
271	/**
272	* Check if path is within the allowed Elementor uploads directory.
273	*
274	* Prevents path traversal and arbitrary directory deletion by ensuring the path
275	* resolves under wp-content/uploads/elementor/ or under the configured temp dir
276	* (elementor/files/temp-dir filter), so that cleanup works when temp dir is customized.
277	*
278	* @since 3.35.4
279	* @access private
280	*
281	* @param string $path
282	* @return bool
283	*/
284	private function is_path_in_allowed_dir( $path ) {
285	if ( ! is_string( $path ) \|\| '' === $path ) {
286	return false;
287	}
288
289	$real_path = realpath( $path );
290
291	if ( false === $real_path ) {
292	$real_path = realpath( dirname( $path ) );
293	if ( false === $real_path ) {
294	return false;
295	}
296	}
297
298	$wp_upload_dir = wp_upload_dir();
299	$elementor_base = realpath( $wp_upload_dir['basedir'] . DIRECTORY_SEPARATOR . self::ELEMENTOR_UPLOAD_DIR );
300
301	if ( false !== $elementor_base ) {
302	$allowed = $real_path === $elementor_base \|\| 0 === strpos( $real_path, $elementor_base . DIRECTORY_SEPARATOR );
303	if ( $allowed ) {
304	return true;
305	}
306	}
307
308	$temp_dir = realpath( $this->get_temp_dir() );
309	if ( false !== $temp_dir ) {
310	$temp_dir = rtrim( $temp_dir, DIRECTORY_SEPARATOR ) . DIRECTORY_SEPARATOR;
311	return 0 === strpos( $real_path, $temp_dir );
312	}
313
314	return false;
315	}
316
317	/**
318	* Remove File Or Directory
319	*
320	* Directory is deleted recursively with all of its contents (subdirectories and files).
321	* Only paths under wp-content/uploads/elementor/ are allowed (security: prevents arbitrary directory deletion).
322	*
323	* @since 3.3.0
324	* @access public
325	*
326	* @param string $path
327	*/
328	public function remove_file_or_dir( $path ) {
329	if ( ! $this->is_path_in_allowed_dir( $path ) ) {
330	return;
331	}
332
333	if ( is_dir( $path ) ) {
334	$this->remove_directory_with_files( $path );
335	} elseif ( is_file( $path ) ) {
336	unlink( $path );
337	}
338	}
339
340	/**
341	* Create Temp File
342	*
343	* Create a random temporary file.
344	*
345	* @since 3.3.0
346	* @access public
347	*
348	* @param string $file_content
349	* @param string $file_name
350	* @return string\|\WP_Error
351	*/
352	public function create_temp_file( $file_content, $file_name ) {
353	$file_name = str_replace( ' ', '', sanitize_file_name( $file_name ) );
354
355	if ( empty( $file_name ) ) {
356	return new \WP_Error( 'invalid_file_name', esc_html__( 'Invalid file name.', 'elementor' ) );
357	}
358
359	$temp_filename = $this->create_unique_dir() . $file_name;
360
361	/**
362	* Temp File Path
363	*
364	* Allows modifying the full path of the temporary file.
365	*
366	* @since 3.7.0
367	*
368	* @param string full path to file
369	*/
370	$temp_filename = apply_filters( 'elementor/files/temp-file-path', $temp_filename );
371
372	file_put_contents( $temp_filename, $file_content ); // phpcs:ignore
373
374	return $temp_filename;
375	}
376
377	/**
378	* Get Temp Directory
379	*
380	* Get the temporary files directory path. If the directory does not exist, this method creates it.
381	*
382	* @since 3.3.0
383	* @access public
384	*
385	* @return string $temp_dir
386	*/
387	public function get_temp_dir() {
388	if ( ! $this->temp_dir ) {
389	$wp_upload_dir = wp_upload_dir();
390
391	$temp_dir = implode( DIRECTORY_SEPARATOR, [ $wp_upload_dir['basedir'], self::ELEMENTOR_UPLOAD_DIR, 'tmp' ] ) . DIRECTORY_SEPARATOR;
392
393	/**
394	* Temp File Path
395	*
396	* Allows modifying the full path of the temporary file.
397	*
398	* @since 3.7.0
399	*
400	* @param string temporary directory
401	*/
402	$this->temp_dir = apply_filters( 'elementor/files/temp-dir', $temp_dir );
403
404	if ( ! is_dir( $this->temp_dir ) ) {
405	wp_mkdir_p( $this->temp_dir );
406	}
407	}
408
409	return $this->temp_dir;
410	}
411
412	/**
413	* Create Unique Temp Dir
414	*
415	* Create a unique temporary directory
416	*
417	* @since 3.3.0
418	* @access public
419	*
420	* @return string the new directory path
421	*/
422	public function create_unique_dir() {
423	$unique_dir_path = $this->get_temp_dir() . uniqid() . DIRECTORY_SEPARATOR;
424
425	wp_mkdir_p( $unique_dir_path );
426
427	return $unique_dir_path;
428	}
429
430	/**
431	* Register Ajax Actions
432	*
433	* Runs on the 'elementor/ajax/register_actions' hook. Receives the AJAX module as a parameter and registers
434	* callbacks for specified action IDs.
435	*
436	* @since 3.5.0
437	* @access public
438	*
439	* @param Ajax $ajax
440	*/
441	public function register_ajax_actions( Ajax $ajax ) {
442	$ajax->register_ajax_action( 'enable_unfiltered_files_upload', [ $this, 'enable_unfiltered_files_upload' ] );
443	$ajax->register_ajax_action( 'enqueue_google_fonts', [ $this, 'ajax_enqueue_google_fonts' ] );
444	}
445
446	/**
447	* Set Unfiltered Files Upload
448	*
449	* @since 3.5.0
450	* @access public
451	*/
452	public function enable_unfiltered_files_upload() {
453	if ( ! current_user_can( 'manage_options' ) ) {
454	return;
455	}
456
457	update_option( self::UNFILTERED_FILE_UPLOADS_KEY, 1 );
458	}
459
460	public function ajax_enqueue_google_fonts( $data ): bool {
461	if ( empty( $data['font_name'] ) ) {
462	return false;
463	}
464
465	$font_type = Fonts::get_font_type( $data['font_name'] );
466
467	if ( Fonts::GOOGLE !== $font_type ) {
468	return false;
469	}
470
471	Google_Font::enqueue( $data['font_name'] );
472
473	return true;
474	}
475
476	/**
477	* Support Unfiltered File Uploads
478	*
479	* When uploading a file within Elementor, this method adds the registered
480	* file types to WordPress' allowed mimes list. This will only happen if the user allowed unfiltered file uploads
481	* in Elementor's settings in the admin dashboard.
482	*
483	* @since 3.5.0
484	* @access public
485	*
486	* @param array $allowed_mimes
487	* @return array allowed mime types
488	*/
489	final public function support_unfiltered_elementor_file_uploads( $allowed_mimes ) {
490	if ( $this->is_elementor_upload() && $this->are_unfiltered_uploads_enabled() ) {
491	foreach ( $this->file_type_handlers as $file_type_handler ) {
492	$allowed_mimes[ $file_type_handler->get_file_extension() ] = $file_type_handler->get_mime_type();
493	}
494	}
495
496	return $allowed_mimes;
497	}
498
499	/**
500	* Set Elementor Upload State
501	*
502	* @since 3.5.0
503	* @access public
504	*
505	* @param $state
506	*/
507	public function set_elementor_upload_state( $state ) {
508	$this->is_elementor_upload = $state;
509	}
510
511	/**
512	* Is Elementor Upload
513	*
514	* This method checks if the current session includes a request to upload files made via Elementor.
515	*
516	* @since 3.5.0
517	* @access private
518	*
519	* @return bool
520	*/
521	private function is_elementor_upload() {
522	return $this->is_elementor_upload \|\| $this->is_elementor_media_upload() \|\| $this->is_elementor_wp_media_upload();
523	}
524
525	/**
526	* Is Elementor Media Upload
527	*
528	* Checks whether the current request includes uploading files via Elementor which are not destined for the Media
529	* Library.
530	*
531	* @since 3.5.0
532	* @access public
533	*
534	* @return bool
535	*/
536	public function is_elementor_media_upload() {
537	// Sometimes `uploadTypeCaller` passed as a GET parameter when using the WP Media Library REST API, where the
538	// whole request body is occupied by the uploaded file.
539	return isset( $_REQUEST['uploadTypeCaller'] ) && 'elementor-media-upload' === $_REQUEST['uploadTypeCaller']; // phpcs:ignore
540	}
541
542	/**
543	* Is Elementor WP Media Upload
544	*
545	* Checks whether the current request is a request to upload files into the WP Media Library via Elementor.
546	*
547	* @since 3.3.0
548	* @access private
549	*
550	* @return bool
551	*/
552	private function is_elementor_wp_media_upload() {
553	return isset( $_REQUEST['uploadTypeCaller'] ) && 'elementor-wp-media-upload' === $_REQUEST['uploadTypeCaller']; // phpcs:ignore
554	}
555
556	/**
557	* Add File Extension To Allowed Extensions List
558	*
559	* @since 3.3.0
560	* @access private
561	*
562	* @param string $file_type
563	*/
564	private function add_file_extension_to_allowed_extensions_list( $file_type ) {
565	$file_handler = $this->file_type_handlers[ $file_type ];
566
567	$file_extension = $file_handler->get_file_extension();
568
569	// Only add the file extension to the list if it doesn't already exist in it.
570	if ( ! in_array( $file_extension, $this->allowed_file_extensions, true ) ) {
571	$this->allowed_file_extensions[] = $file_extension;
572	}
573	}
574
575	/**
576	* Save Base64 as File
577	*
578	* Saves a Base64 string as a .tmp file in Elementor's temporary files directory.
579	*
580	* @since 3.3.0
581	* @access private
582	*
583	* @param $file
584	* @param array\|null $allowed_file_extensions
585	*
586	* @return array\|\WP_Error
587	*/
588	private function save_base64_to_tmp_file( $file, $allowed_file_extensions = null ) {
589	if ( empty( $file['fileName'] ) \|\| empty( $file['fileData'] ) ) {
590	return new \WP_Error( 'file_error', self::INVALID_FILE_CONTENT );
591	}
592
593	$file_extension = pathinfo( $file['fileName'], PATHINFO_EXTENSION );
594	$is_file_type_allowed = $this->is_file_type_allowed( $file_extension, $allowed_file_extensions );
595
596	if ( is_wp_error( $is_file_type_allowed ) ) {
597	return $is_file_type_allowed;
598	}
599
600	$file_content = base64_decode( $file['fileData'] ); // phpcs:ignore
601
602	// If the decode fails
603	if ( ! $file_content ) {
604	return new \WP_Error( 'file_error', self::INVALID_FILE_CONTENT );
605	}
606
607	$temp_filename = $this->create_temp_file( $file_content, $file['fileName'] );
608
609	if ( is_wp_error( $temp_filename ) ) {
610	return $temp_filename;
611	}
612
613	return [
614	// the original uploaded file name
615	'name' => $file['fileName'],
616	// The path to the temporary file
617	'tmp_name' => $temp_filename,
618	];
619	}
620
621	/**
622	* Validate File
623	*
624	* @since 3.3.0
625	* @access private
626	*
627	* @param array $file
628	* @param array $file_extensions Optional
629	* @return bool\|\WP_Error
630	*/
631	private function validate_file( array $file, $file_extensions = [] ) {
632	$uploaded_file_name = isset( $file['name'] ) ? $file['name'] : $file['tmp_name'];
633
634	$file_extension = pathinfo( $uploaded_file_name, PATHINFO_EXTENSION );
635
636	if ( ! $this->is_elementor_wp_media_upload() ) {
637	$is_file_type_allowed = $this->is_file_type_allowed( $file_extension, $file_extensions );
638
639	if ( is_wp_error( $is_file_type_allowed ) ) {
640	return $is_file_type_allowed;
641	}
642	}
643
644	$file_type_handler = $this->get_file_type_handlers( $file_extension );
645
646	// If Elementor does not have a handler for this file type, don't block it.
647	if ( ! $file_type_handler ) {
648	return true;
649	}
650
651	// If there is a File Type Handler for the uploaded file, it means it is a non-standard file type. In this case,
652	// we check if unfiltered file uploads are enabled or not before allowing it.
653	if ( ! self::are_unfiltered_uploads_enabled() ) {
654	$error = 'json' === $file_extension
655	? esc_html__( 'You do not have permission to upload JSON files.', 'elementor' )
656	: esc_html__( 'This file is not allowed for security reasons.', 'elementor' );
657	return new \WP_Error( Exceptions::FORBIDDEN, $error );
658	}
659
660	// Here is each file type handler's chance to run its own specific validations
661	return $file_type_handler->validate_file( $file );
662	}
663
664	/**
665	* Is File Type Allowed
666	*
667	* Checks whether the passed file extension is allowed for upload.
668	*
669	* @since 3.5.0
670	* @access private
671	*
672	* @param $file_extension
673	* @param $filtered_file_extensions
674	* @return bool\|\WP_Error
675	*/
676	private function is_file_type_allowed( $file_extension, $filtered_file_extensions ) {
677	$allowed_file_extensions = $this->get_allowed_file_extensions();
678
679	if ( $filtered_file_extensions ) {
680	$allowed_file_extensions = array_intersect( $allowed_file_extensions, $filtered_file_extensions );
681	}
682
683	$is_allowed = false;
684
685	// Check if the file type (extension) is in the allowed extensions list. If it is a non-standard file type (not
686	// enabled by default in WordPress) and unfiltered file uploads are not enabled, it will not be in the allowed
687	// file extensions list.
688	foreach ( $allowed_file_extensions as $allowed_extension ) {
689	if ( preg_match( '/' . $allowed_extension . '/', $file_extension ) ) {
690	$is_allowed = true;
691
692	break;
693	}
694	}
695
696	if ( ! $is_allowed ) {
697	$is_allowed = new \WP_Error( Exceptions::FORBIDDEN, 'Uploading this file type is not allowed.' );
698	}
699
700	/**
701	* Elementor File Type Allowed
702	*
703	* Allows setting file types
704	*
705	* @since 3.5.0
706	*
707	* @param bool\|\WP_Error $is_allowed
708	*/
709	return apply_filters( 'elementor/files/allow-file-type/' . $file_extension, $is_allowed );
710	}
711
712	/**
713	* Remove Directory with Files
714	*
715	* @since 3.3.0
716	* @access private
717	*
718	* @param string $dir
719	* @return bool
720	*/
721	private function remove_directory_with_files( $dir ) {
722	$dir_iterator = new \RecursiveDirectoryIterator( $dir, \RecursiveDirectoryIterator::SKIP_DOTS );
723
724	foreach ( new \RecursiveIteratorIterator( $dir_iterator, \RecursiveIteratorIterator::CHILD_FIRST ) as $name => $item ) {
725	if ( is_dir( $name ) ) {
726	rmdir( $name );
727	} elseif ( is_file( $name ) ) {
728	unlink( $name );
729	}
730	}
731
732	return rmdir( $dir );
733	}
734
735	/**
736	* Get Allowed File Extensions
737	*
738	* Retrieve an array containing the list of file extensions allowed for upload.
739	*
740	* @since 3.3.0
741	* @access private
742	*
743	* @return array file extension/s
744	*/
745	private function get_allowed_file_extensions() {
746	if ( ! $this->allowed_file_extensions ) {
747	$this->allowed_file_extensions = array_keys( get_allowed_mime_types() );
748
749	foreach ( $this->get_file_type_handlers() as $file_type => $handler ) {
750	if ( $handler->is_upload_allowed() ) {
751	// Add the file extension to the allowed extensions list only if unfiltered files upload is enabled.
752	$this->add_file_extension_to_allowed_extensions_list( $file_type );
753	}
754	}
755	}
756
757	return $this->allowed_file_extensions;
758	}
759
760	public function __construct() {
761	$this->register_file_types();
762
763	add_filter( 'upload_mimes', [ $this, 'support_unfiltered_elementor_file_uploads' ] );
764	add_filter( 'wp_handle_upload_prefilter', [ $this, 'handle_elementor_wp_media_upload' ] );
765	add_filter( 'wp_check_filetype_and_ext', [ $this, 'check_filetype_and_ext' ], 10, 4 );
766
767	// Ajax.
768	add_action( 'elementor/ajax/register_actions', [ $this, 'register_ajax_actions' ] );
769	}
770	}
771