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Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More / 6.4
Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More v6.4
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formidable / classes / controllers / FrmXMLController.php

FrmXMLController.php in Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More 6.4, at classes/controllers/FrmXMLController.php

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1 <?php
2 if ( ! defined( 'ABSPATH' ) ) {
3 die( 'You are not allowed to call this page directly.' );
4 }
5
6 class FrmXMLController {
7
8 /**
9 * @return void
10 */
11 public static function menu() {
12 add_submenu_page( 'formidable', 'Formidable | ' . __( 'Import/Export', 'formidable' ), __( 'Import/Export', 'formidable' ), 'frm_edit_forms', 'formidable-import', 'FrmXMLController::route' );
13 }
14
15 /**
16 * @return void
17 */
18 public static function add_default_templates() {
19 if ( FrmXMLHelper::check_if_libxml_disable_entity_loader_exists() ) {
20 // XML import is not enabled on your server
21 return;
22 }
23
24 $set_err = libxml_use_internal_errors( true );
25 $loader = FrmXMLHelper::maybe_libxml_disable_entity_loader( true );
26
27 $files = apply_filters( 'frm_default_templates_files', array() );
28
29 foreach ( (array) $files as $file ) {
30 FrmXMLHelper::import_xml( $file );
31 unset( $file );
32 }
33
34 unset( $files );
35
36 libxml_use_internal_errors( $set_err );
37 FrmXMLHelper::maybe_libxml_disable_entity_loader( $loader );
38 }
39
40 /**
41 * Use the template link to install the XML template
42 *
43 * @since 3.06
44 * @return void
45 */
46 public static function install_template() {
47 FrmAppHelper::permission_check( 'frm_edit_forms' );
48 check_ajax_referer( 'frm_ajax', 'nonce' );
49
50 if ( ! function_exists( 'simplexml_load_string' ) ) {
51 $response = array(
52 'message' => __( 'Your server is missing the Simple XML extension. This is required to install a template.', 'formidable' ),
53 );
54 echo wp_json_encode( $response );
55 wp_die();
56 }
57
58 $form = self::get_posted_form();
59 $url = FrmAppHelper::get_param( 'xml', '', 'post', 'esc_url_raw' );
60 self::override_url( $form, $url );
61
62 if ( ! self::validate_xml_url( $url ) ) {
63 $response = array(
64 'message' => __( 'The template you are trying to install could not be validated.', 'formidable' ),
65 );
66 echo wp_json_encode( $response );
67 wp_die();
68 }
69
70 $response = wp_remote_get( $url );
71 $body = wp_remote_retrieve_body( $response );
72 $xml = simplexml_load_string( $body );
73
74 if ( ! $xml ) {
75 $response = array(
76 'message' => __( 'There was an error reading the form template.', 'formidable' ),
77 );
78 echo wp_json_encode( $response );
79 wp_die();
80 }
81
82 self::set_new_form_name( $xml );
83
84 $imported = FrmXMLHelper::import_xml_now( $xml, true );
85 if ( ! empty( $imported['form_status'] ) ) {
86 // Get the last form id in case there are child forms.
87 end( $imported['form_status'] );
88 $form_id = key( $imported['form_status'] );
89 $response = array(
90 'id' => $form_id,
91 'redirect' => FrmForm::get_edit_link( $form_id ),
92 'success' => 1,
93 );
94 if ( ! empty( $imported['imported']['posts'] ) ) {
95 // Return the link to the last page created.
96 $pages = $imported['posts'];
97 }
98
99 if ( ! empty( $form ) ) {
100 // Create selected pages with the correct shortcodes.
101 $pages = self::create_pages_for_import( $form );
102 }
103
104 if ( isset( $pages ) && ! empty( $pages ) ) {
105 $post_id = end( $pages );
106 $response['redirect'] = get_permalink( $post_id );
107 }
108 } else {
109 if ( isset( $imported['error'] ) ) {
110 $message = $imported['error'];
111 } else {
112 $message = __( 'There was an error importing form', 'formidable' );
113 }
114 $response = array(
115 'message' => $message,
116 );
117
118 }
119
120 $response = apply_filters( 'frm_xml_response', $response, compact( 'form', 'imported' ) );
121
122 echo wp_json_encode( $response );
123 wp_die();
124 }
125
126 /**
127 * Make sure that the XML file we're trying to load is in fact an XML file, and that it's coming from our S3 bucket.
128 * This is to make sure that the URL can't be exploited for a SSRF attack.
129 *
130 * @since 5.5.5
131 * @param string $url
132 *
133 * @return bool True on success, False on error.
134 */
135 private static function validate_xml_url( $url ) {
136 return FrmAppHelper::validate_url_is_in_s3_bucket( $url, 'xml' );
137 }
138
139 /**
140 * @since 4.06.02
141 *
142 * @return mixed
143 */
144 private static function get_posted_form() {
145 $form = FrmAppHelper::get_param( 'form', '', 'post', 'wp_unslash' );
146 if ( empty( $form ) ) {
147 return $form;
148 }
149 $form = json_decode( $form, true );
150 return $form;
151 }
152
153 /**
154 * Get a different URL depending on the selection in the form.
155 *
156 * @since 4.06.02
157 *
158 * @return void
159 */
160 private static function override_url( $form, &$url ) {
161 $selected_form = self::get_selected_in_form( $form, 'form' );
162 if ( empty( $selected_form ) ) {
163 return;
164 }
165
166 $selected_xml = isset( $form['xml'] ) && isset( $form['xml'][ $selected_form ] ) ? $form['xml'][ $selected_form ] : '';
167 if ( empty( $selected_xml ) || strpos( $selected_xml, 'http' ) !== 0 ) {
168 return;
169 }
170
171 $url = $selected_xml;
172 }
173
174 /**
175 * @since 4.06.02
176 *
177 * @param string $value
178 * @param array $form
179 */
180 private static function get_selected_in_form( $form, $value = 'form' ) {
181 if ( ! empty( $form ) && isset( $form[ $value ] ) && ! empty( $form[ $value ] ) ) {
182 return $form[ $value ];
183 }
184
185 return '';
186 }
187
188 /**
189 * @since 4.06.02
190 *
191 * @param array $form The posted form values.
192 *
193 * @return array The array of created pages.
194 */
195 private static function create_pages_for_import( $form ) {
196 if ( ! isset( $form['pages'] ) || empty( $form['pages'] ) ) {
197 return;
198 }
199
200 $form_key = self::get_selected_in_form( $form, 'form' );
201 $view_keys = self::get_selected_in_form( $form, 'view' );
202
203 $page_ids = array();
204 foreach ( (array) $form['pages'] as $for => $name ) {
205 if ( empty( $name ) ) {
206 // Don't create a page if no title is given.
207 continue;
208 }
209
210 if ( $for === 'view' ) {
211 $item_key = is_array( $view_keys ) ? $view_keys[ $form_key ] : $view_keys;
212 $shortcode = '[display-frm-data id=%1$s filter=limited]';
213 } elseif ( $for === 'form' ) {
214 $item_key = $form_key;
215 $shortcode = '[formidable id=%1$s]';
216 } else {
217 $item_key = self::get_selected_in_form( $form, 'form' );
218 $shortcode = '[' . esc_html( $for ) . ' id=%1$s]';
219 }
220
221 if ( empty( $item_key ) ) {
222 // Don't create it if the shortcode won't show anything.
223 continue;
224 }
225
226 $page_ids[ $for ] = wp_insert_post(
227 array(
228 'post_title' => $name,
229 'post_type' => 'page',
230 'post_content' => sprintf( $shortcode, $item_key ),
231 )
232 );
233 }
234
235 return $page_ids;
236 }
237
238 /**
239 * Change the name of the last form that is not a child.
240 * This will allow for lookup fields and embedded forms
241 * since we redirect to the last form.
242 *
243 * @since 3.06
244 *
245 * @param object $xml The values included in the XML.
246 * @return void
247 */
248 private static function set_new_form_name( &$xml ) {
249 if ( ! isset( $xml->form ) ) {
250 return;
251 }
252
253 $name = FrmAppHelper::get_param( 'name', '', 'post', 'sanitize_text_field' );
254 $description = FrmAppHelper::get_param( 'desc', '', 'post', 'sanitize_textarea_field' );
255 if ( ! $name && ! $description ) {
256 return;
257 }
258
259 // Get the main form ID.
260 $set_name = 0;
261 foreach ( $xml->form as $form ) {
262 if ( empty( $form->parent_form_id ) ) {
263 $set_name = (int) $form->id;
264 }
265 }
266
267 foreach ( $xml->form as $form ) {
268 // Maybe set the form name if this isn't a child form.
269 if ( $set_name === (int) $form->id ) {
270 $form->name = $name;
271 $form->description = $description;
272 }
273
274 // Use a unique key to prevent editing existing form.
275 $sanitized_form_name = sanitize_title( $form->name );
276 $form->form_key = FrmAppHelper::get_unique_key( $sanitized_form_name, 'frm_forms', 'form_key' );
277 }
278 }
279
280 /**
281 * @return void
282 */
283 public static function route() {
284 $action = isset( $_REQUEST['frm_action'] ) ? 'frm_action' : 'action';
285 $action = FrmAppHelper::get_param( $action, '', 'get', 'sanitize_title' );
286 FrmAppHelper::include_svg();
287
288 if ( 'import_xml' === $action ) {
289 self::import_xml();
290 } elseif ( 'export_xml' === $action ) {
291 self::export_xml();
292 } elseif ( apply_filters( 'frm_xml_route', true, $action ) ) {
293 self::form();
294 }
295 }
296
297 /**
298 * @param string[] $errors
299 * @param string $message
300 *
301 * @return void
302 */
303 public static function form( $errors = array(), $message = '' ) {
304 $where = array(
305 'status' => array( null, '', 'published' ),
306 );
307 $forms = FrmForm::getAll( $where, 'name' );
308
309 $export_types = array(
310 'forms' => __( 'Forms', 'formidable' ),
311 'items' => __( 'Entries', 'formidable' ),
312 );
313 $export_types = apply_filters( 'frm_xml_export_types', $export_types );
314
315 $export_format = array(
316 'xml' => array(
317 'name' => 'XML',
318 'support' => 'forms',
319 'count' => 'multiple',
320 ),
321 'csv' => array(
322 'name' => 'CSV',
323 'support' => 'items',
324 'count' => 'single',
325 ),
326 );
327 $export_format = apply_filters( 'frm_export_formats', $export_format );
328
329 include FrmAppHelper::plugin_path() . '/classes/views/xml/import_form.php';
330 }
331
332 /**
333 * @return void
334 */
335 public static function import_xml() {
336 $errors = array();
337 $message = '';
338
339 $permission_error = FrmAppHelper::permission_nonce_error( 'frm_edit_forms', 'import-xml', 'import-xml-nonce' );
340 if ( false !== $permission_error ) {
341 $errors[] = $permission_error;
342 self::form( $errors );
343
344 return;
345 }
346
347 $has_file = isset( $_FILES ) && isset( $_FILES['frm_import_file'] ) && ! empty( $_FILES['frm_import_file']['name'] ) && ! empty( $_FILES['frm_import_file']['size'] ) && (int) $_FILES['frm_import_file']['size'] > 0;
348 if ( ! $has_file ) {
349 $errors[] = __( 'Oops, you didn\'t select a file.', 'formidable' );
350 self::form( $errors );
351
352 return;
353 }
354
355 // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.MissingUnslash
356 $file = isset( $_FILES['frm_import_file']['tmp_name'] ) ? sanitize_option( 'upload_path', $_FILES['frm_import_file']['tmp_name'] ) : '';
357
358 if ( ! is_uploaded_file( $file ) ) {
359 unset( $file );
360 $errors[] = __( 'The file does not exist, please try again.', 'formidable' );
361 self::form( $errors );
362
363 return;
364 }
365
366 //add_filter('upload_mimes', 'FrmXMLController::allow_mime');
367
368 $export_format = array(
369 'xml' => array(
370 'name' => 'XML',
371 'support' => 'forms',
372 'count' => 'multiple',
373 ),
374 );
375 $export_format = apply_filters( 'frm_export_formats', $export_format );
376
377 // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.MissingUnslash
378 $file_type = sanitize_option( 'upload_path', $_FILES['frm_import_file']['name'] );
379 $file_type = strtolower( pathinfo( $file_type, PATHINFO_EXTENSION ) );
380 if ( 'xml' !== $file_type && isset( $export_format[ $file_type ] ) ) {
381 // allow other file types to be imported
382 do_action( 'frm_before_import_' . $file_type );
383
384 return;
385 }
386 unset( $file_type );
387
388 if ( FrmXMLHelper::check_if_libxml_disable_entity_loader_exists() ) {
389 $errors[] = __( 'XML import is not enabled on your server with the libxml_disable_entity_loader function.', 'formidable' );
390 self::form( $errors );
391
392 return;
393 }
394
395 $set_err = libxml_use_internal_errors( true );
396 $loader = FrmXMLHelper::maybe_libxml_disable_entity_loader( true );
397
398 $result = FrmXMLHelper::import_xml( $file );
399 FrmXMLHelper::parse_message( $result, $message, $errors );
400
401 unset( $file );
402
403 libxml_use_internal_errors( $set_err );
404 FrmXMLHelper::maybe_libxml_disable_entity_loader( $loader );
405
406 self::form( $errors, $message );
407 }
408
409 /**
410 * @return void
411 */
412 public static function export_xml() {
413 $error = FrmAppHelper::permission_nonce_error( 'frm_edit_forms', 'export-xml', 'export-xml-nonce' );
414 if ( ! empty( $error ) ) {
415 wp_die( esc_html( $error ) );
416 }
417
418 $ids = FrmAppHelper::get_post_param( 'frm_export_forms', array(), 'sanitize_text_field' );
419 $type = FrmAppHelper::get_post_param( 'type', array(), 'sanitize_text_field' );
420 $format = FrmAppHelper::get_post_param( 'format', 'xml', 'sanitize_title' );
421
422 if ( ! headers_sent() && ! $type ) {
423 wp_redirect( esc_url_raw( admin_url( 'admin.php?page=formidable-import' ) ) );
424 die();
425 }
426
427 if ( 'xml' === $format ) {
428 self::generate_xml( $type, compact( 'ids' ) );
429 } elseif ( 'csv' === $format ) {
430 self::generate_csv( compact( 'ids' ) );
431 } else {
432 do_action( 'frm_export_format_' . $format, compact( 'ids' ) );
433 }
434
435 wp_die();
436 }
437
438 /**
439 * @param array $args
440 *
441 * @psalm-param array{ids?: mixed} $args
442 *
443 * @return void
444 */
445 public static function generate_xml( $type, $args = array() ) {
446 global $wpdb;
447
448 self::prepare_types_array( $type );
449
450 $tables = array(
451 'items' => $wpdb->prefix . 'frm_items',
452 'forms' => $wpdb->prefix . 'frm_forms',
453 'posts' => $wpdb->posts,
454 'styles' => $wpdb->posts,
455 'actions' => $wpdb->posts,
456 );
457
458 $defaults = array(
459 'ids' => false,
460 );
461 $args = wp_parse_args( $args, $defaults );
462
463 // Make sure ids are numeric.
464 if ( is_array( $args['ids'] ) && ! empty( $args['ids'] ) ) {
465 $args['ids'] = array_filter( $args['ids'], 'is_numeric' );
466 }
467
468 $records = array();
469
470 foreach ( $type as $tb_type ) {
471 $where = array();
472 $join = '';
473 $table = $tables[ $tb_type ];
474
475 $select = $table . '.id';
476 $query_vars = array();
477
478 switch ( $tb_type ) {
479 case 'forms':
480 //add forms
481 if ( $args['ids'] ) {
482 $where[] = array(
483 'or' => 1,
484 $table . '.id' => $args['ids'],
485 $table . '.parent_form_id' => $args['ids'],
486 );
487 } else {
488 $where[ $table . '.status !' ] = 'draft';
489 }
490 break;
491 case 'actions':
492 $select = $table . '.ID';
493 $where['post_type'] = FrmFormActionsController::$action_post_type;
494 if ( ! empty( $args['ids'] ) ) {
495 $where['menu_order'] = $args['ids'];
496 }
497 break;
498 case 'items':
499 // $join = "INNER JOIN {$wpdb->prefix}frm_item_metas im ON ($table.id = im.item_id)";
500 if ( $args['ids'] ) {
501 $where[ $table . '.form_id' ] = $args['ids'];
502 }
503 break;
504 case 'styles':
505 // Loop through all exported forms and get their selected style IDs.
506 $frm_style = new FrmStyle();
507 $default_style = $frm_style->get_default_style();
508 $form_ids = $args['ids'];
509 $style_ids = array();
510 foreach ( $form_ids as $form_id ) {
511 $form_data = FrmForm::getOne( $form_id );
512 // For forms that have not been updated while running 2.0, check if custom_style is set.
513 if ( isset( $form_data->options['custom_style'] ) ) {
514 if ( 1 === absint( $form_data->options['custom_style'] ) ) {
515 $style_ids[] = $default_style->ID;
516 } else {
517 $style_ids[] = $form_data->options['custom_style'];
518 }
519 }
520 unset( $form_id, $form_data );
521 }
522 $select = $table . '.ID';
523 $where['post_type'] = 'frm_styles';
524
525 // Only export selected styles.
526 if ( ! empty( $style_ids ) ) {
527 $where['ID'] = $style_ids;
528 }
529 break;
530 default:
531 $select = $table . '.ID';
532 $join = ' INNER JOIN ' . $wpdb->postmeta . ' pm ON (pm.post_id=' . $table . '.ID)';
533 $where['pm.meta_key'] = 'frm_form_id';
534
535 if ( empty( $args['ids'] ) ) {
536 $where['pm.meta_value >'] = 1;
537 } else {
538 $where['pm.meta_value'] = $args['ids'];
539 }
540 }
541
542 $records[ $tb_type ] = FrmDb::get_col( $table . $join, $where, $select );
543 unset( $tb_type );
544 }
545
546 $filename = self::get_file_name( $args, $type, $records );
547
548 header( 'Content-Description: File Transfer' );
549 header( 'Content-Disposition: attachment; filename=' . $filename );
550 header( 'Content-Type: text/xml; charset=' . get_option( 'blog_charset' ), true );
551
552 echo '<?xml version="1.0" encoding="' . esc_attr( get_bloginfo( 'charset' ) ) . "\" ?>\n";
553 include FrmAppHelper::plugin_path() . '/classes/views/xml/xml.php';
554 }
555
556 /**
557 * @return void
558 */
559 private static function prepare_types_array( &$type ) {
560 $type = (array) $type;
561 if ( ! in_array( 'forms', $type ) && ( in_array( 'items', $type ) || in_array( 'posts', $type ) ) ) {
562 // make sure the form is included if there are entries
563 $type[] = 'forms';
564 }
565
566 if ( in_array( 'forms', $type ) ) {
567 // include actions with forms
568 $type[] = 'actions';
569 }
570 }
571
572 /**
573 * Use a generic file name if multiple items are exported.
574 * Use the nme of the form if only one form is exported.
575 *
576 * @since 3.06
577 *
578 * @param array $type
579 * @param array $records
580 * @param array $args
581 *
582 * @return string
583 */
584 private static function get_file_name( $args, $type, $records ) {
585 $has_one_form = isset( $records['forms'] ) && ! empty( $records['forms'] ) && count( $args['ids'] ) === 1;
586 if ( $has_one_form ) {
587 // one form is being exported
588 $selected_form_id = reset( $args['ids'] );
589 $filename = 'form-' . $selected_form_id . '.xml';
590
591 foreach ( $records['forms'] as $form_id ) {
592 $filename = 'form-' . $form_id . '.xml';
593 if ( $selected_form_id === $form_id ) {
594 $form = FrmForm::getOne( $form_id );
595 $filename = $form->name !== '' ? $form->name : $form->form_key;
596 $filename = sanitize_title( $filename ) . '-form.xml';
597 break;
598 }
599 }
600 } else {
601 $sitename = sanitize_key( get_bloginfo( 'name' ) );
602
603 if ( ! empty( $sitename ) ) {
604 $sitename .= '.';
605 }
606 $filename = $sitename . 'formidable.' . gmdate( 'Y-m-d' ) . '.xml';
607 }
608
609 /**
610 * @since 5.3
611 *
612 * @param string $filename
613 */
614 return apply_filters( 'frm_xml_filename', $filename );
615 }
616
617 /**
618 * @param array $atts
619 *
620 * @return void
621 */
622 public static function generate_csv( $atts ) {
623 $form_ids = $atts['ids'];
624 if ( empty( $form_ids ) ) {
625 wp_die( esc_html__( 'Please select a form', 'formidable' ) );
626 }
627 self::csv( reset( $form_ids ) );
628 }
629
630 /**
631 * Export to CSV
632 *
633 * @since 2.0.19
634 *
635 * @return void
636 */
637 public static function csv( $form_id = false, $search = '', $fid = '' ) {
638 FrmAppHelper::permission_check( 'frm_view_entries' );
639
640 if ( ! $form_id ) {
641 $form_id = FrmAppHelper::get_param( 'form', '', 'get', 'sanitize_text_field' );
642 $search = FrmAppHelper::get_param( ( isset( $_REQUEST['s'] ) ? 's' : 'search' ), '', 'get', 'sanitize_text_field' );
643 $fid = FrmAppHelper::get_param( 'fid', '', 'get', 'sanitize_text_field' );
644 }
645
646 set_time_limit( 0 ); //Remove time limit to execute this function
647 $mem_limit = str_replace( 'M', '', ini_get( 'memory_limit' ) );
648 if ( (int) $mem_limit < 256 ) {
649 wp_raise_memory_limit();
650 }
651
652 global $wpdb;
653
654 $form = FrmForm::getOne( $form_id );
655
656 if ( ! $form ) {
657 esc_html_e( 'Form not found.', 'formidable' );
658 wp_die();
659 }
660
661 $form_id = $form->id;
662 $form_cols = self::get_fields_for_csv_export( $form_id, $form );
663
664 $item_id = FrmAppHelper::get_param( 'item_id', 0, 'get', 'sanitize_text_field' );
665 if ( ! empty( $item_id ) ) {
666 $item_id = explode( ',', $item_id );
667 }
668
669 $query = array(
670 'form_id' => $form_id,
671 );
672
673 if ( $item_id ) {
674 $query['id'] = $item_id;
675 }
676
677 /**
678 * Allows the query to be changed for fetching the entry ids to include in the export
679 *
680 * $query is the array of options to be filtered. It includes form_id, and maybe id (array of entry ids),
681 * and the search query. This should return an array, but it can be handled as a string as well.
682 */
683 $query = apply_filters( 'frm_csv_where', $query, compact( 'form_id', 'search', 'fid', 'item_id' ) );
684
685 $entry_ids = FrmDb::get_col( $wpdb->prefix . 'frm_items it', $query );
686 unset( $query );
687
688 if ( empty( $entry_ids ) ) {
689 esc_html_e( 'There are no entries for that form.', 'formidable' );
690 } else {
691 FrmCSVExportHelper::generate_csv( compact( 'form', 'entry_ids', 'form_cols' ) );
692 }
693
694 wp_die();
695 }
696
697 /**
698 * Get the fields that should be included in the CSV export
699 *
700 * @since 2.0.19
701 * @since 5.0.16 function went from private to public.
702 *
703 * @param int $form_id
704 * @param object $form
705 *
706 * @return array $csv_fields
707 */
708 public static function get_fields_for_csv_export( $form_id, $form ) {
709 $csv_fields = FrmField::get_all_for_form( $form_id, '', 'include', 'include' );
710 $no_export_fields = FrmField::no_save_fields();
711 foreach ( $csv_fields as $k => $f ) {
712 if ( in_array( $f->type, $no_export_fields, true ) ) {
713 unset( $csv_fields[ $k ] );
714 }
715 }
716
717 return apply_filters( 'frm_fields_for_csv_export', $csv_fields, compact( 'form' ) );
718 }
719
720 public static function allow_mime( $mimes ) {
721 if ( ! isset( $mimes['csv'] ) ) {
722 // allow csv files
723 $mimes['csv'] = 'text/csv';
724 }
725
726 if ( ! isset( $mimes['xml'] ) ) {
727 // allow xml
728 $mimes['xml'] = 'text/xml';
729 }
730
731 return $mimes;
732 }
733 }
734