Ajax.php — Tutor LMS – eLearning and online course solution 3.8.3

tutor / classes / Ajax.php

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Addons.php 11 months ago Admin.php 9 months ago Ajax.php 9 months ago Announcements.php 1 year ago Assets.php 10 months ago Backend_Page_Trait.php 1 year ago BaseController.php 1 year ago Config.php 11 months ago Container.php 11 months ago Course.php 9 months ago Course_Embed.php 3 years ago Course_Filter.php 1 year ago Course_List.php 10 months ago Course_Settings_Tabs.php 1 year ago Course_Widget.php 1 year ago Custom_Validation.php 3 years ago Dashboard.php 1 year ago Earnings.php 9 months ago FormHandler.php 2 years ago Frontend.php 1 year ago Gutenberg.php 1 year ago Icon.php 9 months ago Input.php 1 year ago Instructor.php 1 year ago Instructors_List.php 11 months ago Lesson.php 10 months ago Options_V2.php 9 months ago Permalink.php 2 years ago Post_types.php 1 year ago Private_Course_Access.php 1 year ago Q_And_A.php 10 months ago Question_Answers_List.php 11 months ago Quiz.php 9 months ago QuizBuilder.php 11 months ago Quiz_Attempts_List.php 9 months ago RestAPI.php 2 years ago Reviews.php 9 months ago Rewrite_Rules.php 2 years ago Shortcode.php 9 months ago Singleton.php 1 year ago Student.php 1 year ago Students_List.php 1 year ago Taxonomies.php 1 year ago Template.php 9 months ago Theme_Compatibility.php 3 years ago Tools.php 1 year ago Tools_V2.php 1 year ago Tutor.php 9 months ago TutorEDD.php 1 year ago Tutor_Base.php 2 years ago Tutor_Setup.php 1 year ago Upgrader.php 9 months ago User.php 1 year ago Utils.php 9 months ago Video_Stream.php 3 years ago WhatsNew.php 9 months ago Withdraw.php 1 year ago Withdraw_Requests_List.php 11 months ago WooCommerce.php 9 months ago

Ajax.php

639 lines

1	<?php
2	/**
3	* Handle Ajax Request
4	*
5	* @package Tutor
6	* @author Themeum <support@themeum.com>
7	* @link https://themeum.com
8	* @since 1.0.0
9	*/
10
11	namespace TUTOR;
12
13	if ( ! defined( 'ABSPATH' ) ) {
14	exit;
15	}
16
17	use Tutor\Helpers\HttpHelper;
18	use Tutor\Models\LessonModel;
19	use Tutor\Traits\JsonResponse;
20
21	/**
22	* Ajax Class
23	*
24	* @since 1.0.0
25	*/
26	class Ajax {
27	use JsonResponse;
28
29	const LOGIN_ERRORS_TRANSIENT_KEY = 'tutor_login_errors';
30	/**
31	* Constructor
32	*
33	* @since 1.0.0
34	* @since 2.6.2 added allow_hooks param.
35	*
36	* @param bool $allow_hooks default value true.
37	*
38	* @return void
39	*/
40	public function __construct( $allow_hooks = true ) {
41	if ( $allow_hooks ) {
42	add_action( 'wp_ajax_sync_video_playback', array( $this, 'sync_video_playback' ) );
43	add_action( 'wp_ajax_nopriv_sync_video_playback', array( $this, 'sync_video_playback_noprev' ) );
44	add_action( 'wp_ajax_tutor_place_rating', array( $this, 'tutor_place_rating' ) );
45	add_action( 'wp_ajax_delete_tutor_review', array( $this, 'delete_tutor_review' ) );
46
47	add_action( 'wp_ajax_tutor_course_add_to_wishlist', array( $this, 'tutor_course_add_to_wishlist' ) );
48	add_action( 'wp_ajax_nopriv_tutor_course_add_to_wishlist', array( $this, 'tutor_course_add_to_wishlist' ) );
49
50	/**
51	* Ajax login
52	*
53	* @since v.1.6.3
54	*/
55	add_action( 'tutor_action_tutor_user_login', array( $this, 'process_tutor_login' ) );
56
57	/**
58	* Announcement
59	*
60	* @since v.1.7.9
61	*/
62	add_action( 'wp_ajax_tutor_announcement_create', array( $this, 'create_or_update_annoucement' ) );
63	add_action( 'wp_ajax_tutor_announcement_delete', array( $this, 'delete_annoucement' ) );
64
65	add_action( 'wp_ajax_tutor_youtube_video_duration', array( $this, 'ajax_youtube_video_duration' ) );
66	}
67	}
68
69
70
71	/**
72	* Update video information and data when necessary
73	*
74	* @since 1.0.0
75	* @return void
76	*/
77	public function sync_video_playback() {
78	tutor_utils()->checking_nonce();
79
80	$user_id = get_current_user_id();
81	$post_id = Input::post( 'post_id', 0, Input::TYPE_INT );
82	$duration = Input::post( 'duration' );
83	$current_time = Input::post( 'currentTime' );
84
85	if ( ! tutor_utils()->has_enrolled_content_access( 'lesson', $post_id ) ) {
86	wp_send_json_error( array( 'message' => __( 'Access Denied', 'tutor' ) ) );
87	exit;
88	}
89
90	/**
91	* Update posts attached video
92	*/
93	$video = tutor_utils()->get_video( $post_id );
94
95	if ( $duration ) {
96	$video['duration_sec'] = $duration; // Duration in sec.
97	$video['playtime'] = tutor_utils()->playtime_string( $duration );
98	$video['runtime'] = tutor_utils()->playtime_array( $duration );
99	}
100	tutor_utils()->update_video( $post_id, $video );
101
102	/**
103	* Sync Lesson Reading Info by Users
104	*/
105
106	$best_watch_time = tutor_utils()->get_lesson_reading_info( $post_id, $user_id, 'video_best_watched_time' );
107	if ( $best_watch_time < $current_time ) {
108	LessonModel::update_lesson_reading_info( $post_id, $user_id, 'video_best_watched_time', $current_time );
109	}
110
111	if ( Input::post( 'is_ended', false, Input::TYPE_BOOL ) ) {
112	LessonModel::mark_lesson_complete( $post_id );
113	LessonModel::update_lesson_reading_info( $post_id, $user_id, 'video_best_watched_time', 0 );
114	}
115	exit();
116	}
117
118	/**
119	* Video playback callback for noprev
120	*
121	* @since 1.0.0
122	* @return void
123	*/
124	public function sync_video_playback_noprev() {
125	}
126
127	/**
128	* Place rating
129	*
130	* @since 1.0.0
131	* @return void
132	*/
133	public function tutor_place_rating() {
134	tutor_utils()->checking_nonce();
135
136	$user_id = get_current_user_id();
137	$course_id = Input::post( 'course_id' );
138	$rating = Input::post( 'tutor_rating_gen_input', 0, Input::TYPE_INT );
139	$review = Input::post( 'review', '', Input::TYPE_TEXTAREA );
140
141	$rating <= 0 ? $rating = 1 : 0;
142	$rating > 5 ? $rating = 5 : 0;
143
144	$this->add_or_update_review( $user_id, $course_id, $rating, $review );
145	}
146
147	/**
148	* Add/Update rating
149	*
150	* @param int $user_id the user id.
151	* @param int $course_id the course id.
152	* @param int $rating rating star number.
153	* @param string $review review description.
154	* @param int $review_id review id needed for api update.
155	*
156	* @return void\|string
157	*/
158	public function add_or_update_review( $user_id, $course_id, $rating, $review, $review_id = 0 ) {
159	global $wpdb;
160
161	$moderation = tutor_utils()->get_option( 'enable_course_review_moderation', false, true, true );
162	$user = get_userdata( $user_id );
163	$date = date( 'Y-m-d H:i:s', tutor_time() ); //phpcs:ignore
164
165	if ( ! tutor_is_rest() && ! tutor_utils()->has_enrolled_content_access( 'course', $course_id ) ) {
166	wp_send_json_error( array( 'message' => __( 'Access Denied', 'tutor' ) ) );
167	exit;
168	}
169
170	do_action( 'tutor_before_rating_placed' );
171
172	$is_edit = 0 === $review_id ? false : true;
173
174	if ( ! tutor_is_rest() ) {
175	$previous_rating_id = $wpdb->get_var(
176	$wpdb->prepare(
177	"SELECT comment_ID
178	from {$wpdb->comments}
179	WHERE comment_post_ID = %d AND
180	user_id = %d AND
181	comment_type = 'tutor_course_rating'
182	LIMIT 1;",
183	$course_id,
184	$user_id
185	)
186	);
187
188	if ( ! empty( $previous_rating_id ) ) {
189	$review_id = $previous_rating_id;
190	$is_edit = true;
191	}
192	}
193
194	if ( $is_edit ) {
195	$wpdb->update(
196	$wpdb->comments,
197	array(
198	'comment_content' => $review,
199	'comment_approved' => $moderation ? 'hold' : 'approved',
200	'comment_date' => $date,
201	'comment_date_gmt' => get_gmt_from_date( $date ),
202	),
203	array( 'comment_ID' => $review_id )
204	);
205
206	$rating_info = $wpdb->get_row(
207	$wpdb->prepare(
208	"SELECT * FROM {$wpdb->commentmeta}
209	WHERE comment_id = %d
210	AND meta_key = 'tutor_rating'; ",
211	$review_id
212	)
213	);
214
215	if ( $rating_info ) {
216	$wpdb->update(
217	$wpdb->commentmeta,
218	array( 'meta_value' => $rating ),
219	array(
220	'comment_id' => $review_id,
221	'meta_key' => 'tutor_rating',
222	)
223	);
224	} else {
225	$wpdb->insert(
226	$wpdb->commentmeta,
227	array(
228	'comment_id' => $review_id,
229	'meta_key' => 'tutor_rating',
230	'meta_value' => $rating,
231	)
232	);
233	}
234	} else {
235	$data = array(
236	'comment_post_ID' => esc_sql( $course_id ),
237	'comment_approved' => $moderation ? 'hold' : 'approved',
238	'comment_type' => 'tutor_course_rating',
239	'comment_date' => $date,
240	'comment_date_gmt' => get_gmt_from_date( $date ),
241	'user_id' => $user_id,
242	'comment_author' => $user->user_login,
243	'comment_agent' => 'TutorLMSPlugin',
244	);
245	if ( $review ) {
246	$data['comment_content'] = $review;
247	}
248
249	$wpdb->insert( $wpdb->comments, $data );
250	$comment_id = (int) $wpdb->insert_id;
251	$review_id = $comment_id;
252
253	if ( $comment_id ) {
254	$wpdb->insert(
255	$wpdb->commentmeta,
256	array(
257	'comment_id' => $comment_id,
258	'meta_key' => 'tutor_rating',
259	'meta_value' => $rating,
260	)
261	);
262
263	do_action( 'tutor_after_rating_placed', $comment_id );
264	}
265	}
266
267	if ( ! tutor_is_rest() ) {
268	wp_send_json_success(
269	array(
270	'message' => __( 'Rating placed successfully!', 'tutor' ),
271	'review_id' => $review_id,
272	)
273	);
274	} else {
275	return $is_edit ? 'updated' : 'created';
276	}
277	}
278
279	/**
280	* Delete a review
281	*
282	* @since 1.0.0
283	* @since 2.6.2 added params user_id.
284	* @param int $user_id the user id.
285	* @return void\|bool
286	*/
287	public function delete_tutor_review( $user_id = 0 ) {
288	if ( ! tutor_is_rest() ) {
289	tutor_utils()->checking_nonce();
290	}
291
292	$review_id = Input::post( 'review_id' );
293
294	if ( ! tutor_utils()->can_user_manage( 'review', $review_id, tutils()->get_user_id( $user_id ) ) ) {
295	wp_send_json_error( array( 'message' => __( 'Permissioned Denied!', 'tutor' ) ) );
296	exit;
297	}
298
299	global $wpdb;
300	$wpdb->delete( $wpdb->commentmeta, array( 'comment_id' => $review_id ) );
301	$wpdb->delete( $wpdb->comments, array( 'comment_ID' => $review_id ) );
302
303	if ( tutor_is_rest() ) {
304	return true;
305	}
306
307	wp_send_json_success();
308	}
309
310	/**
311	* Add course in wishlist
312	*
313	* @since 1.0.0
314	* @return void\|string
315	*/
316	public function tutor_course_add_to_wishlist() {
317	tutor_utils()->checking_nonce();
318
319	$is_enabled_wishlist = tutor_utils()->get_option( 'enable_wishlist', true );
320	if ( ! $is_enabled_wishlist ) {
321	wp_send_json_error( array( 'message' => __( 'Wishlist option is disabled', 'tutor' ) ) );
322	}
323
324	// Redirect login since only logged in user can add courses to wishlist.
325	if ( ! is_user_logged_in() ) {
326	wp_send_json_error(
327	array(
328	'redirect_to' => wp_login_url( wp_get_referer() ),
329	)
330	);
331	}
332
333	$user_id = get_current_user_id();
334	$course_id = Input::post( 'course_id', 0, Input::TYPE_INT );
335
336	$result = $this->add_or_delete_wishlist( $user_id, $course_id );
337
338	if ( tutor_is_rest() ) {
339	return $result;
340	} elseif ( 'added' === $result ) {
341	wp_send_json_success(
342	array(
343	'status' => 'added',
344	'message' => __( 'Course added to wish list', 'tutor' ),
345	)
346	);
347	} else {
348	wp_send_json_success(
349	array(
350	'status' => 'removed',
351	'message' => __( 'Course removed from wish list', 'tutor' ),
352	)
353	);
354	}
355	}
356
357	/**
358	* Add or Delete wishlist by user_id and course_id
359	*
360	* @since 2.6.2
361	*
362	* @param int $user_id the user id.
363	* @param int $course_id the course_id to add to the wishlist.
364	*
365	* @return string
366	*/
367	public function add_or_delete_wishlist( $user_id, $course_id ) {
368	global $wpdb;
369
370	$if_added_to_list = tutor_utils()->is_wishlisted( $course_id, $user_id );
371
372	$result = '';
373
374	if ( $if_added_to_list ) {
375	$wpdb->delete(
376	$wpdb->usermeta,
377	array(
378	'user_id' => $user_id,
379	'meta_key' => '_tutor_course_wishlist',
380	'meta_value' => $course_id,
381	)
382	);
383
384	$result = 'removed';
385	} else {
386	add_user_meta( $user_id, '_tutor_course_wishlist', $course_id );
387
388	$result = 'added';
389	}
390
391	return $result;
392	}
393
394	/**
395	* Process tutor login
396	*
397	* @since 1.6.3
398	*
399	* @since 2.1.3 Ajax removed, validation errors
400	* stores in session.
401	*
402	* @return void
403	*/
404	public function process_tutor_login() {
405	$validation_error = new \WP_Error();
406
407	/**
408	* Separate nonce verification added to show nonce verification
409	* failed message in a proper way.
410	*
411	* @since 2.1.4
412	*/
413	if ( ! wp_verify_nonce( $_POST[ tutor()->nonce ], tutor()->nonce_action ) ) { //phpcs:ignore
414	$validation_error->add( 401, __( 'Nonce verification failed', 'tutor' ) );
415	\set_transient( self::LOGIN_ERRORS_TRANSIENT_KEY, $validation_error->get_error_messages() );
416	return;
417	}
418	//phpcs:disable WordPress.Security.NonceVerification.Missing
419
420	/**
421	* No sanitization/wp_unslash needed for log & pwd since WordPress
422	* does itself
423	*
424	* @since 2.1.3
425	*
426	* @see https://developer.wordpress.org/reference/functions/wp_signon/
427	*/
428	$username = tutor_utils()->array_get( 'log', $_POST ); //phpcs:ignore
429	$password = tutor_utils()->array_get( 'pwd', $_POST ); //phpcs:ignore
430	$redirect_to = isset( $_POST['redirect_to'] ) ? esc_url_raw( wp_unslash( $_POST['redirect_to'] ) ) : '';
431	$remember = isset( $_POST['rememberme'] );
432
433	try {
434	$creds = array(
435	'user_login' => trim( $username ),
436	'user_password' => $password,
437	'remember' => $remember,
438	);
439
440	$validation_error = apply_filters( 'tutor_process_login_errors', $validation_error, $creds['user_login'], $creds['user_password'] );
441
442	if ( $validation_error->get_error_code() ) {
443	$validation_error->add(
444	$validation_error->get_error_code(),
445	$validation_error->get_error_message()
446	);
447	}
448
449	if ( empty( $creds['user_login'] ) ) {
450	$validation_error->add(
451	400,
452	__( 'Username is required.', 'tutor' )
453	);
454	}
455
456	// On multi-site, ensure user exists on current site, if not add them before allowing login.
457	if ( is_multisite() ) {
458	$user_data = get_user_by( is_email( $creds['user_login'] ) ? 'email' : 'login', $creds['user_login'] );
459
460	if ( $user_data && ! is_user_member_of_blog( $user_data->ID, get_current_blog_id() ) ) {
461	add_user_to_blog( get_current_blog_id(), $user_data->ID, 'customer' );
462	}
463	}
464
465	// Perform the login.
466	$user = wp_signon( apply_filters( 'tutor_login_credentials', $creds ), is_ssl() );
467
468	if ( is_wp_error( $user ) ) {
469	// If no error exist then add WP login error, to prevent error duplication.
470	if ( ! $validation_error->has_errors() ) {
471	$validation_error->add( 400, $user->get_error_message() );
472	}
473	} else {
474	do_action( 'tutor_after_login_success', $user->ID );
475	// Since 1.9.8 do enroll if guest attempt to enroll.
476	$course_enroll_attempt = Input::post( 'tutor_course_enroll_attempt' );
477	if ( ! empty( $course_enroll_attempt ) && is_a( $user, 'WP_User' ) ) {
478	do_action( 'tutor_do_enroll_after_login_if_attempt', $course_enroll_attempt, $user->ID );
479	}
480	wp_safe_redirect( $redirect_to );
481	exit();
482	}
483	} catch ( \Exception $e ) {
484	do_action( 'tutor_login_failed' );
485	$validation_error->add( 400, $e->getMessage() );
486	} finally {
487	// Store errors in transient data.
488	\set_transient( self::LOGIN_ERRORS_TRANSIENT_KEY, $validation_error->get_error_messages() );
489	}
490	}
491
492	/**
493	* Create/Update announcement
494	*
495	* @since 1.7.9
496	* @return void
497	*/
498	public function create_or_update_annoucement() {
499	tutor_utils()->checking_nonce();
500
501	$error = array();
502	$course_id = Input::post( 'tutor_announcement_course' );
503	$announcement_title = Input::post( 'tutor_announcement_title' );
504	$announcement_summary = Input::post( 'tutor_announcement_summary', '', Input::TYPE_TEXTAREA );
505
506	// Check if user can manage this announcment.
507	if ( ! tutor_utils()->can_user_manage( 'course', $course_id ) ) {
508	wp_send_json_error( array( 'message' => __( 'Access Denied', 'tutor' ) ) );
509	}
510
511	// Set data and sanitize it.
512	$form_data = array(
513	'post_type' => 'tutor_announcements',
514	'post_title' => $announcement_title,
515	'post_content' => $announcement_summary,
516	'post_parent' => $course_id,
517	'post_status' => 'publish',
518	);
519
520	if ( Input::has( 'announcement_id' ) ) {
521	$form_data['ID'] = Input::post( 'announcement_id' );
522	}
523
524	if ( ! empty( $form_data['ID'] ) ) {
525	if ( ! tutor_utils()->can_user_manage( 'announcement', $form_data['ID'] ) ) {
526	wp_send_json_error( array( 'message' => tutor_utils()->error_message() ) );
527	}
528	}
529
530	// Validation message set.
531	if ( empty( $form_data['post_parent'] ) ) {
532	$error['post_parent'] = __( 'Course name required', 'tutor' );
533
534	}
535
536	if ( empty( $form_data['post_title'] ) ) {
537	$error['post_title'] = __( 'Announcement title required', 'tutor' );
538	}
539
540	if ( empty( $form_data['post_content'] ) ) {
541	$error['post_content'] = __( 'Announcement summary required', 'tutor' );
542
543	}
544
545	if ( empty( $form_data['post_content'] ) ) {
546	$error['post_content'] = __( 'Announcement summary required', 'tutor' );
547
548	}
549
550	// If validation fails.
551	if ( count( $error ) > 0 ) {
552	wp_send_json_error(
553	array(
554	'message' => __( 'All fields required!', 'tutor' ),
555	'fields' => $error,
556	)
557	);
558	}
559
560	// Insert or update post.
561	$post_id = wp_insert_post( $form_data );
562	if ( $post_id > 0 ) {
563	$announcement = get_post( $post_id );
564	$action_type = Input::post( 'action_type' );
565
566	do_action( 'tutor_announcements/after/save', $post_id, $announcement, $action_type );
567
568	$resp_message = 'create' === $action_type ? __( 'Announcement created successfully', 'tutor' ) : __( 'Announcement updated successfully', 'tutor' );
569	wp_send_json_success( array( 'message' => $resp_message ) );
570	}
571
572	wp_send_json_error( array( 'message' => __( 'Something Went Wrong!', 'tutor' ) ) );
573	}
574
575	/**
576	* Delete announcement
577	*
578	* @since 1.7.9
579	* @return void
580	*/
581	public function delete_annoucement() {
582	tutor_utils()->checking_nonce();
583
584	$announcement_id = Input::post( 'announcement_id' );
585
586	if ( ! tutor_utils()->can_user_manage( 'announcement', $announcement_id ) ) {
587	wp_send_json_error( array( 'message' => __( 'Access Denied', 'tutor' ) ) );
588	}
589
590	$delete = wp_delete_post( $announcement_id );
591	if ( $delete ) {
592	wp_send_json_success( array( 'message' => __( 'Announcement deleted successfully', 'tutor' ) ) );
593	}
594
595	wp_send_json_error( array( 'message' => __( 'Announcement delete failed', 'tutor' ) ) );
596	}
597
598	/**
599	* Get youtube video duration.
600	*
601	* @since 3.0.0
602	*
603	* @return void
604	*/
605	public function ajax_youtube_video_duration() {
606	tutor_utils()->check_nonce();
607
608	$video_id = Input::post( 'video_id' );
609	if ( empty( $video_id ) ) {
610	$this->json_response( __( 'Video ID is required', 'tutor' ), null, HttpHelper::STATUS_BAD_REQUEST );
611	}
612
613	tutor_utils()->check_current_user_capability( 'edit_tutor_course' );
614
615	$api_key = tutor_utils()->get_option( 'lesson_video_duration_youtube_api_key', '' );
616	$url = "https://www.googleapis.com/youtube/v3/videos?id=$video_id&part=contentDetails&key=$api_key";
617
618	$request = HttpHelper::get( $url );
619	if ( HttpHelper::STATUS_OK === $request->get_status_code() ) {
620	$response = $request->get_json();
621	if ( isset( $response->items[0]->contentDetails->duration ) ) {
622	$duration = $response->items[0]->contentDetails->duration;
623	$this->json_response(
624	__( 'Fetched duration successfully', 'tutor' ),
625	array(
626	'duration' => $duration,
627	)
628	);
629	}
630	}
631
632	$this->json_response(
633	__( 'Failed to fetch duration', 'tutor' ),
634	null,
635	HttpHelper::STATUS_BAD_REQUEST
636	);
637	}
638	}
639