Admin.php — Tutor LMS – eLearning and online course solution 1.8.5

tutor / classes / Admin.php

tutor / classes Last commit date

Addons.php 5 years ago Admin.php 5 years ago Ajax.php 5 years ago Assets.php 5 years ago Course.php 5 years ago Course_Filter.php 5 years ago Course_Settings_Tabs.php 5 years ago Course_Widget.php 5 years ago Custom_Validation.php 5 years ago Dashboard.php 5 years ago Email.php 5 years ago FormHandler.php 5 years ago Frontend.php 5 years ago Gutenberg.php 5 years ago Instructor.php 5 years ago Instructors_List.php 5 years ago Lesson.php 5 years ago Options.php 5 years ago Post_types.php 5 years ago Private_Course_Access.php 5 years ago Q_and_A.php 5 years ago Question_Answers_List.php 5 years ago Quiz.php 5 years ago Quiz_Attempts_List.php 5 years ago RestAPI.php 5 years ago Rewrite_Rules.php 5 years ago Shortcode.php 5 years ago Student.php 5 years ago Students_List.php 5 years ago Taxonomies.php 5 years ago Template.php 5 years ago Theme_Compatibility.php 5 years ago Tools.php 5 years ago Tutor.php 5 years ago TutorEDD.php 5 years ago Tutor_Base.php 5 years ago Tutor_List_Table.php 5 years ago Tutor_Setup.php 5 years ago Upgrader.php 5 years ago User.php 5 years ago Utils.php 5 years ago Video_Stream.php 5 years ago Withdraw.php 5 years ago Withdraw_Requests_List.php 5 years ago WooCommerce.php 5 years ago

Admin.php

497 lines

1	<?php
2	namespace TUTOR;
3
4	/**
5	* Class Admin
6	* @package TUTOR
7	*
8	* @since v.1.0.0
9	*/
10
11	if ( ! defined( 'ABSPATH' ) )
12	exit;
13
14	class Admin{
15	public function __construct() {
16	add_action('admin_menu', array($this, 'register_menu'));
17	//Force activate menu for necessary
18	add_filter('parent_file', array($this, 'parent_menu_active'));
19	add_filter('submenu_file', array($this, 'submenu_file_active'), 10, 2);
20
21	add_action('admin_init', array($this, 'filter_posts_for_instructors'));
22	add_action('load-post.php', array($this, 'check_if_current_users_post') );
23
24	add_action('admin_action_uninstall_tutor_and_erase', array($this, 'erase_tutor_data'));
25	add_filter('plugin_action_links_' . plugin_basename(TUTOR_FILE), array( $this, 'plugin_action_links' ) );
26
27	//Plugin Row Meta
28	add_filter('plugin_row_meta', array($this, 'plugin_row_meta'), 10, 2);
29
30	//Admin Footer Text
31	add_filter( 'admin_footer_text', array( $this, 'admin_footer_text' ), 1 );
32	//Register Course Widget
33	add_action( 'widgets_init', array($this, 'register_course_widget') );
34	}
35
36	public function register_menu(){
37	$hasPro = tutor()->has_pro;
38
39	$unanswered_questions = tutor_utils()->unanswered_question_count();
40	$unanswered_bubble = '';
41	if ($unanswered_questions){
42	$unanswered_bubble = '<span class="update-plugins count-'.$unanswered_questions.'"><span class="plugin-count">'.$unanswered_questions.'</span></span>';
43	}
44
45	$course_post_type = tutor()->course_post_type;
46
47	$pro_text = '';
48	if ($hasPro){
49	$pro_text = ' '.__('Pro', 'tutor');
50	}
51
52	$enable_course_marketplace = (bool) tutils()->get_option('enable_course_marketplace');
53
54	add_menu_page(__('Tutor LMS', 'tutor').$pro_text, __('Tutor LMS', 'tutor').$pro_text, 'manage_tutor_instructor', 'tutor', null,
55	'dashicons-welcome-learn-more', 2);
56	add_submenu_page('tutor', __('Categories', 'tutor'), __('Categories', 'tutor'), 'manage_tutor', 'edit-tags.php?taxonomy=course-category&post_type='.$course_post_type, null );
57
58	add_submenu_page('tutor', __('Tags', 'tutor'), __('Tags', 'tutor'), 'manage_tutor', 'edit-tags.php?taxonomy=course-tag&post_type='.$course_post_type, null );
59
60	add_submenu_page('tutor', __('Students', 'tutor'), __('Students', 'tutor'), 'manage_tutor', 'tutor-students', array($this, 'tutor_students') );
61
62	if ($enable_course_marketplace) {
63	add_submenu_page('tutor', __('Instructors', 'tutor'), __('Instructors', 'tutor'), 'manage_tutor', 'tutor-instructors', array($this, 'tutor_instructors'));
64	}
65
66	add_submenu_page('tutor', __('Announcements', 'tutor'), __('Announcements', 'tutor'), 'manage_tutor_instructor', 'tutor_announcements', array($this, 'tutor_announcements'));
67
68	add_submenu_page('tutor', __('Q & A', 'tutor'), __('Q & A '.$unanswered_bubble, 'tutor'), 'manage_tutor_instructor', 'question_answer', array($this, 'question_answer') );
69
70	add_submenu_page('tutor', __('Quiz Attempts', 'tutor'), __('Quiz Attempts', 'tutor'), 'manage_tutor_instructor', 'tutor_quiz_attempts',array($this, 'quiz_attempts') );
71
72	if ($enable_course_marketplace){
73	add_submenu_page('tutor', __('Withdraw Requests', 'tutor'), __('Withdraw Requests', 'tutor'), 'manage_tutor_instructor', 'tutor_withdraw_requests', array($this, 'withdraw_requests') );
74	}
75
76	add_submenu_page( 'tutor', __( 'Add-ons', 'tutor' ), __( 'Add-ons', 'tutor' ), 'manage_tutor', 'tutor-addons', array( $this, 'enable_disable_addons' ) );
77
78	do_action('tutor_admin_register');
79
80	add_submenu_page('tutor', __('Settings', 'tutor'), __('Settings', 'tutor'), 'manage_tutor', 'tutor_settings', array($this, 'tutor_page') );
81
82	add_submenu_page('tutor', __('Tools', 'tutor'), __('Tools', 'tutor'), 'manage_tutor', 'tutor-tools', array($this, 'tutor_tools') );
83
84	if ( ! $hasPro){
85	add_submenu_page( 'tutor', __( 'Get Pro', 'tutor' ), __( '<span class="dashicons dashicons-awards tutor-get-pro-text"></span> Get Pro', 'tutor' ), 'manage_options', 'tutor-get-pro', array($this, 'tutor_get_pro') );
86	}
87	}
88
89	public function tutor_page(){
90	$tutor_option = new Options();
91	echo apply_filters('tutor/options/generated-html', $tutor_option->generate());
92	}
93
94	public function tutor_students(){
95	include tutor()->path.'views/pages/students.php';
96	}
97
98	public function tutor_instructors(){
99	include tutor()->path.'views/pages/instructors.php';
100	}
101
102	public function tutor_announcements(){
103	include tutor()->path.'views/pages/announcements.php';
104	}
105
106	public function question_answer(){
107	include tutor()->path.'views/pages/question_answer.php';
108	}
109
110	public function quiz_attempts(){
111	include tutor()->path.'views/pages/quiz_attempts.php';
112	}
113
114	/**
115	* Show the withdraw requests table
116	*
117	* @since v.1.2.0
118	*/
119	public function withdraw_requests(){
120	include tutor()->path.'views/pages/withdraw_requests.php';
121	}
122
123	public function enable_disable_addons(){
124
125	if (defined('TUTOR_PRO_VERSION')) {
126	include tutor()->path.'views/pages/enable_disable_addons.php';
127	}else{
128	include tutor()->path.'views/pages/tutor-pro-addons.php';
129	}
130	}
131
132	public function tutor_tools(){
133	$tutor_admin_tools_page = tutils()->array_get('tutor_admin_tools_page', $_GET);
134	if ($tutor_admin_tools_page){
135	include apply_filters('tutor_admin_tools_page', tutor()->path."views/pages/{$tutor_admin_tools_page}.php", $tutor_admin_tools_page);
136	}else{
137	$pages = apply_filters('tutor_tool_pages', array(
138	'tutor_pages' => array('title' => __('Tutor Pages', 'tutor') ),
139	'status' => __('Status', 'tutor'),
140	));
141
142	$current_page = 'tutor_pages';
143	$requested_page = sanitize_text_field(tutils()->array_get('sub_page', $_GET));
144	if ($requested_page){
145	$current_page = $requested_page;
146	}
147
148	include tutor()->path.'views/pages/tools.php';
149	}
150	}
151
152	public function tutor_get_pro(){
153	include tutor()->path.'views/pages/get-pro.php';
154	}
155
156	public function parent_menu_active( $parent_file ){
157	$taxonomy = tutor_utils()->avalue_dot('taxonomy', $_GET);
158	if ($taxonomy === 'course-category' \|\| $taxonomy === 'course-tag'){
159	return 'tutor';
160	}
161
162	return $parent_file;
163	}
164
165	public function submenu_file_active($submenu_file, $parent_file){
166	$taxonomy = tutor_utils()->avalue_dot('taxonomy', $_GET);
167	$course_post_type = tutor()->course_post_type;
168
169	if ($taxonomy === 'course-category'){
170	return 'edit-tags.php?taxonomy=course-category&post_type='.$course_post_type;
171	}
172	if ($taxonomy === 'course-tag'){
173	return 'edit-tags.php?taxonomy=course-tag&post_type='.$course_post_type;
174	}
175
176
177	return $submenu_file;
178	}
179
180	/**
181	* Filter posts for instructor
182	*/
183	public function filter_posts_for_instructors(){
184	if ( ! current_user_can('administrator') && current_user_can(tutor()->instructor_role)){
185	@remove_menu_page( 'edit-comments.php' ); //Comments
186	add_filter( 'posts_clauses_request', array($this, 'posts_clauses_request') );
187	}
188	}
189
190	public function posts_clauses_request($clauses){
191
192	$user = wp_get_current_user();
193
194	if (in_array( 'administrator', $user->roles ) ) {
195	return $clauses;
196	}
197
198	global $wpdb;
199
200	$user_id = get_current_user_id();
201
202	$get_assigned_courses_ids = $wpdb->get_col($wpdb->prepare("SELECT meta_value from {$wpdb->usermeta} WHERE meta_key = '_tutor_instructor_course_id' AND user_id = %d", $user_id));
203	$own_courses = is_array($get_assigned_courses_ids) ? $get_assigned_courses_ids : array();
204	$in_query_pre = implode(',', $own_courses);
205
206	$custom_author_query = " AND ({$wpdb->posts}.post_type!='courses' OR {$wpdb->posts}.post_author = {$user_id} OR {$wpdb->posts}.ID IN({$in_query_pre})) ";
207
208	$clauses['where'] .= $custom_author_query;
209
210	return $clauses;
211	}
212
213	/**
214	* Prevent unauthorised course/lesson edit page by direct URL
215	*
216	* @since v.1.0.0
217	*/
218	public function check_if_current_users_post(){
219	if (current_user_can('administrator') \|\| ! current_user_can(tutor()->instructor_role)) {
220	return;
221	}
222
223	if (! empty($_GET['post']) ) {
224	$get_post_id = (int) sanitize_text_field($_GET['post']);
225	$get_post = get_post($get_post_id);
226	$tutor_post_types = array(tutor()->course_post_type, tutor()->lesson_post_type);
227
228	$current_user = get_current_user_id();
229
230	if (in_array($get_post->post_type, $tutor_post_types) && $get_post->post_author != $current_user){
231	global $wpdb;
232
233	$get_assigned_courses_ids = (int) $wpdb->get_var($wpdb->prepare(
234	"SELECT user_id
235	from {$wpdb->usermeta}
236	WHERE user_id = %d AND meta_key = '_tutor_instructor_course_id' AND meta_value = %d ", $current_user, $get_post_id));
237
238	if ( ! $get_assigned_courses_ids){
239	wp_die(__('Permission Denied', 'tutor'));
240	}
241
242	}
243	}
244	}
245
246	/**
247	* Status
248	*/
249
250	public static function scan_template_files( $template_path = null ) {
251	if ( ! $template_path){
252	$template_path = tutor()->path.'templates/';
253	}
254
255	$files = @scandir( $template_path ); // @codingStandardsIgnoreLine.
256	$result = array();
257
258	if ( ! empty( $files ) ) {
259	foreach ( $files as $key => $value ) {
260	if ( ! in_array( $value, array( '.', '..', '.DS_Store' ), true ) ) {
261	if ( is_dir( $template_path . DIRECTORY_SEPARATOR . $value ) ) {
262	$sub_files = self::scan_template_files( $template_path . DIRECTORY_SEPARATOR . $value );
263	foreach ( $sub_files as $sub_file ) {
264	$result[] = $value . DIRECTORY_SEPARATOR . $sub_file;
265	}
266	} else {
267	$result[] = $value;
268	}
269	}
270	}
271	}
272	return $result;
273	}
274
275	/**
276	* @return array
277	*
278	*
279	*/
280	public static function template_overridden_files(){
281	$template_files = self::scan_template_files();
282
283	$override_files = array();
284	foreach ($template_files as $file){
285	$file_path = null;
286	if (file_exists(trailingslashit(get_stylesheet_directory()).tutor()->template_path.$file)){
287	$file_path = $file;
288	}elseif (file_exists(trailingslashit(get_template_directory()).tutor()->template_path.$file)){
289	$file_path = $file;
290	}
291
292	if ($file_path){
293	$override_files[] = str_replace( WP_CONTENT_DIR.'/themes/', '', $file_path );
294	}
295	}
296
297	return $override_files;
298	}
299
300	public static function get_environment_info(){
301
302	// Figure out cURL version, if installed.
303	$curl_version = '';
304	if ( function_exists( 'curl_version' ) ) {
305	$curl_version = curl_version();
306	$curl_version = $curl_version['version'] . ', ' . $curl_version['ssl_version'];
307	}
308
309
310	// WP memory limit.
311	$wp_memory_limit = tutor_utils()->let_to_num(WP_MEMORY_LIMIT);
312	if ( function_exists( 'memory_get_usage' ) ) {
313	$wp_memory_limit = max( $wp_memory_limit, tutor_utils()->let_to_num( @ini_get( 'memory_limit' ) ) );
314	}
315
316	$database_version = tutor_utils()->get_db_version();
317
318	return array(
319	'home_url' => get_option( 'home' ),
320	'site_url' => get_option( 'siteurl' ),
321	'version' => tutor()->version,
322	'wp_version' => get_bloginfo( 'version' ),
323	'wp_multisite' => is_multisite(),
324	'wp_memory_limit' => $wp_memory_limit,
325	'wp_debug_mode' => ( defined( 'WP_DEBUG' ) && WP_DEBUG ),
326	'wp_cron' => ! ( defined( 'DISABLE_WP_CRON' ) && DISABLE_WP_CRON ),
327	'language' => get_locale(),
328	'external_object_cache' => wp_using_ext_object_cache(),
329	'server_info' => isset( $_SERVER['SERVER_SOFTWARE'] ) ? wp_unslash( $_SERVER['SERVER_SOFTWARE'] ) : '',
330	'php_version' => phpversion(),
331	'php_post_max_size' => tutor_utils()->let_to_num( ini_get( 'post_max_size' ) ),
332	'php_max_execution_time' => ini_get( 'max_execution_time' ),
333	'php_max_input_vars' => ini_get( 'max_input_vars' ),
334	'curl_version' => $curl_version,
335	'suhosin_installed' => extension_loaded( 'suhosin' ),
336	'max_upload_size' => wp_max_upload_size(),
337	'mysql_version' => $database_version['number'],
338	'mysql_version_string' => $database_version['string'],
339	'default_timezone' => date_default_timezone_get(),
340	'fsockopen_or_curl_enabled' => ( function_exists( 'fsockopen' ) \|\| function_exists( 'curl_init' ) ),
341	'soapclient_enabled' => class_exists( 'SoapClient' ),
342	'domdocument_enabled' => class_exists( 'DOMDocument' ),
343	'gzip_enabled' => is_callable( 'gzopen' ),
344	'mbstring_enabled' => extension_loaded( 'mbstring' ),
345	);
346	}
347
348
349	public function erase_tutor_data(){
350	global $wpdb;
351
352	$is_erase_data = tutor_utils()->get_option('delete_on_uninstall');
353	//=> Deleting Data
354
355	$plugin_file = tutor()->basename;
356	if ($is_erase_data && current_user_can( 'deactivate_plugin', $plugin_file )) {
357	/**
358	* Deleting Post Type, Meta Data, taxonomy
359	*/
360	$course_post_type = tutor()->course_post_type;
361	$lesson_post_type = tutor()->lesson_post_type;
362
363	$post_types = array(
364	$course_post_type,
365	$lesson_post_type,
366	'tutor_quiz',
367	'tutor_enrolled',
368	'topics',
369	'tutor_enrolled',
370	'tutor_announcements',
371	);
372
373	$post_type_strings = "'".implode("','", $post_types)."'";
374	$tutor_posts = $wpdb->get_col("SELECT ID from {$wpdb->posts} WHERE post_type in({$post_type_strings}) ;");
375
376	if (is_array($tutor_posts) && count($tutor_posts)){
377	foreach ($tutor_posts as $post_id){
378	//Delete categories
379	$terms = wp_get_object_terms( $post_id, 'course-category' );
380	foreach( $terms as $term ){
381	wp_remove_object_terms( $post_id, array( $term->term_id ), 'course-category' );
382	}
383
384	//Delete tags if available
385	$terms = wp_get_object_terms( $post_id, 'course-tag' );
386	foreach( $terms as $term ){
387	wp_remove_object_terms( $post_id, array( $term->term_id ), 'course-tag' );
388	}
389
390	//Delete All Meta
391	$wpdb->delete($wpdb->postmeta, array('post_id' => $post_id) );
392	$wpdb->delete($wpdb->posts, array('ID' => $post_id) );
393	}
394	}
395
396	/**
397	* Deleting Comments (reviews, questions, quiz_answers, etc)
398	*/
399	$tutor_comments = $wpdb->get_col("SELECT comment_ID from {$wpdb->comments} WHERE comment_agent = 'comment_agent' ;");
400	$comments_ids_strings = "'".implode("','", $tutor_comments)."'";
401	if (is_array($tutor_comments) && count($tutor_comments)){
402	$wpdb->query("DELETE from {$wpdb->commentmeta} WHERE comment_ID in({$comments_ids_strings}) ");
403	}
404	$wpdb->delete($wpdb->comments, array('comment_agent' => 'comment_agent'));
405
406	/**
407	* Delete Options
408	*/
409
410	delete_option('tutor_option');
411	$wpdb->delete($wpdb->usermeta, array('meta_key' => '_is_tutor_student'));
412	$wpdb->delete($wpdb->usermeta, array('meta_key' => '_tutor_instructor_approved'));
413	$wpdb->delete($wpdb->usermeta, array('meta_key' => '_tutor_instructor_status'));
414	$wpdb->delete($wpdb->usermeta, array('meta_key' => '_is_tutor_instructor'));
415	$wpdb->query("DELETE FROM {$wpdb->usermeta} WHERE meta_key LIKE '%_tutor_completed_lesson_id_%' ");
416
417	//Deleting Table
418	$prefix = $wpdb->prefix;
419	$wpdb->query("DROP TABLE IF EXISTS {$prefix}tutor_quiz_attempts, {$prefix}tutor_quiz_attempt_answers, {$prefix}tutor_quiz_questions, {$prefix}tutor_quiz_question_answers, {$prefix}tutor_earnings, {$prefix}tutor_withdraws ");
420
421	deactivate_plugins($plugin_file);
422	}
423
424	wp_redirect('plugins.php');
425	die();
426	}
427
428	public function plugin_action_links($actions){
429	$hasPro = tutor()->has_pro;
430
431	if(!$hasPro){
432	$actions['tutor_pro_link'] = '<a href="https://www.themeum.com/product/tutor-lms/#pricing?utm_source=tutor_plugin_action_link&utm_medium=wordpress_dashboard&utm_campaign=go_premium" target="_blank"><span
433	style="color: #ff7742; font-weight: bold;">' . __('Upgrade to Pro', 'wp-megamenu') . '</span></a>';
434	}
435
436	$is_erase_data = tutor_utils()->get_option('delete_on_uninstall');
437
438	if ($is_erase_data) {
439	$plugin_file = tutor()->basename;
440	if ( current_user_can( 'deactivate_plugin', $plugin_file ) ) {
441	if ( isset( $actions['deactivate'] ) ) {
442	$actions['deactivate'] = '<a href="admin.php?page=tutor-tools&tutor_admin_tools_page=uninstall">' . __('Uninstall', 'tutor') . '</a>';
443	}
444	}
445	}
446
447	$actions['settings'] = '<a href="admin.php?page=tutor_settings">' . __('Settings', 'tutor') . '</a>';
448	return $actions;
449	}
450
451	public function plugin_row_meta($plugin_meta, $plugin_file){
452
453	if ($plugin_file === tutor()->basename) {
454	$plugin_meta[] = sprintf( '<a href="%s">%s</a>',
455	esc_url( 'https://docs.themeum.com/tutor-lms/?utm_source=tutor&utm_medium=plugins_installation_list&utm_campaign=plugin_docs_link' ),
456	__( '<strong style="color: #03bd24">Documentation</strong>', 'tutor' )
457	);
458	$plugin_meta[] = sprintf( '<a href="%s">%s</a>',
459	esc_url( 'https://www.themeum.com/contact-us/?utm_source=tutor&utm_medium=plugins_installation_list&utm_campaign=plugin_support_link' ),
460	__( '<strong style="color: #03bd24">Get Support</strong>', 'tutor' )
461	);
462	}
463
464	return $plugin_meta;
465	}
466
467	/**
468	* @param $footer_text
469	*
470	* @return string
471	*
472	* Add footer text only on tutor pages
473	*/
474	public function admin_footer_text( $footer_text ) {
475	$current_screen = get_current_screen();
476
477	/**
478	* We are making sure that this message will be only on Tutor Admin page
479	*/
480	if ( apply_filters( 'tutor_display_admin_footer_text', (tutor_utils()->array_get('parent_base', $current_screen) === 'tutor' ) ) ) {
481	$footer_text = sprintf(
482	__( 'If you like %1$s please leave us a %2$s rating. A huge thanks in advance!', 'tutor' ),
483	sprintf( '<strong>%s</strong>', esc_html__( 'Tutor LMS', 'tutor' ) ),
484	'<a href="https://wordpress.org/support/plugin/tutor/reviews?rate=5#new-post" target="_blank" class="tutor-rating-link">★★★★★</a>'
485	);
486	}
487
488	return $footer_text;
489	}
490
491
492	public function register_course_widget(){
493	register_widget( 'Tutor\Course_Widget' );
494	}
495
496
497	}