Ajax.php — Tutor LMS – eLearning and online course solution 3.0.0

tutor / classes / Ajax.php

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

Ajax.php

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