tutor / classes / Admin.php

Admin.php in Tutor LMS – eLearning and online course solution 1.0.7, at classes/Admin.php

420 lines 14.7 KB

Raw Download Zip

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
31	public function register_menu(){
32	$hasPro = tutor()->has_pro;
33
34	$unanswered_questions = tutor_utils()->unanswered_question_count();
35	$unanswered_bubble = '';
36	if ($unanswered_questions){
37	$unanswered_bubble = '<span class="update-plugins count-'.$unanswered_questions.'"><span class="plugin-count">'.$unanswered_questions.'</span></span>';
38	}
39
40	$course_post_type = tutor()->course_post_type;
41
42	add_menu_page(__('Tutor LMS', 'tutor'), __('Tutor LMS', 'tutor'), 'manage_tutor_instructor', 'tutor', null, 'dashicons-welcome-learn-more', 2);
43
44	add_submenu_page('tutor', __('Categories', 'tutor'), __('Categories', 'tutor'), 'manage_tutor', 'edit-tags.php?taxonomy=course-category&post_type='.$course_post_type, null );
45
46	add_submenu_page('tutor', __('Tags', 'tutor'), __('Tags', 'tutor'), 'manage_tutor', 'edit-tags.php?taxonomy=course-tag&post_type='.$course_post_type, null );
47
48	add_submenu_page('tutor', __('Students', 'tutor'), __('Students', 'tutor'), 'manage_tutor', 'tutor-students', array($this, 'tutor_students') );
49
50	add_submenu_page('tutor', __('Instructors', 'tutor'), __('Instructors', 'tutor'), 'manage_tutor', 'tutor-instructors', array($this, 'tutor_instructors') );
51
52	add_submenu_page('tutor', __('Q & A', 'tutor'), __('Q & A '.$unanswered_bubble, 'tutor'), 'manage_tutor_instructor', 'question_answer', array($this, 'question_answer') );
53
54	add_submenu_page('tutor', __('Quiz Attempts', 'tutor'), __('Quiz Attempts', 'tutor'), 'manage_tutor_instructor', 'tutor_quiz_attempts',array($this, 'quiz_attempts') );
55
56	//add_submenu_page('tutor', __('Add-ons', 'tutor'), __('Add-ons', 'tutor'), 'manage_tutor', 'tutor-addons', array(new Addons(),'addons_page') );
57
58	if (defined('TUTOR_PRO_VERSION')) {
59	add_submenu_page( 'tutor', __( 'Add-ons', 'tutor' ), __( 'Add-ons', 'tutor' ), 'manage_tutor', 'tutor-addons', array( $this, 'enable_disable_addons' ) );
60	}
61
62	add_submenu_page('tutor', __('Status', 'tutor'), __('Status', 'tutor'), 'manage_tutor', 'tutor-status', array($this, 'tutor_status') );
63
64	do_action('tutor_admin_register');
65
66	add_submenu_page('tutor', __('Settings', 'tutor'), __('Settings', 'tutor'), 'manage_tutor', 'tutor_settings', array($this, 'tutor_page') );
67
68	add_submenu_page('tutor',__('Uninstall Tutor LMS', 'tutor'), null, 'deactivate_plugin', 'tutor-uninstall', array($this, 'tutor_uninstall'));
69	/*
70	if ( ! $hasPro){
71	add_submenu_page( 'tutor', __( 'Get Pro', 'tutor' ), __( '<span class="dashicons dashicons-awards tutor-get-pro-text"></span> Get Pro', 'tutor' ), 'manage_options', 'tutor-get-pro', array($this, 'tutor_get_pro') );
72	}*/
73
74	}
75
76	public function tutor_page(){
77	$tutor_option = new Options();
78	echo apply_filters('tutor/options/generated-html', $tutor_option->generate());
79	}
80
81	public function tutor_students(){
82	include tutor()->path.'views/pages/students.php';
83	}
84
85	public function tutor_instructors(){
86	include tutor()->path.'views/pages/instructors.php';
87	}
88
89	public function question_answer(){
90	include tutor()->path.'views/pages/question_answer.php';
91	}
92
93	public function quiz_attempts(){
94	include tutor()->path.'views/pages/quiz_attempts.php';
95	}
96
97	public function enable_disable_addons(){
98	include tutor()->path.'views/pages/enable_disable_addons.php';
99	}
100
101	public function tutor_status(){
102	include tutor()->path.'views/pages/status.php';
103	}
104
105	public function tutor_uninstall(){
106	include tutor()->path.'views/pages/uninstall.php';
107	}
108
109	public function tutor_get_pro(){
110	include tutor()->path.'views/pages/get-pro.php';
111	}
112
113	public function parent_menu_active( $parent_file ){
114	$taxonomy = tutor_utils()->avalue_dot('taxonomy', $_GET);
115	if ($taxonomy === 'course-category' \|\| $taxonomy === 'course-tag'){
116	return 'tutor';
117	}
118
119	return $parent_file;
120	}
121
122	public function submenu_file_active($submenu_file, $parent_file){
123	$taxonomy = tutor_utils()->avalue_dot('taxonomy', $_GET);
124	$course_post_type = tutor()->course_post_type;
125
126	if ($taxonomy === 'course-category'){
127	return 'edit-tags.php?taxonomy=course-category&post_type='.$course_post_type;
128	}
129	if ($taxonomy === 'course-tag'){
130	return 'edit-tags.php?taxonomy=course-tag&post_type='.$course_post_type;
131	}
132
133
134	return $submenu_file;
135	}
136
137	/**
138	* Filter posts for instructor
139	*/
140	public function filter_posts_for_instructors(){
141	if ( ! current_user_can('administrator') && current_user_can(tutor()->instructor_role)){
142	remove_menu_page( 'edit-comments.php' ); //Comments
143	add_filter( 'posts_clauses_request', array($this, 'posts_clauses_request') );
144	}
145	}
146
147	public function posts_clauses_request($clauses){
148	global $wpdb;
149
150	$user_id = get_current_user_id();
151
152	$get_assigned_courses_ids = $wpdb->get_col("SELECT meta_value from {$wpdb->usermeta} WHERE meta_key = '_tutor_instructor_course_id' AND user_id = {$user_id} ");
153
154	$custom_author_query = "AND {$wpdb->posts}.post_author = {$user_id}";
155	if (is_array($get_assigned_courses_ids) && count($get_assigned_courses_ids)){
156	$in_query_pre = implode(',', $get_assigned_courses_ids);
157	$custom_author_query = " AND ( {$wpdb->posts}.post_author = {$user_id} OR {$wpdb->posts}.ID IN({$in_query_pre}) ) ";
158	}
159
160	$clauses['where'] .= $custom_author_query;
161
162	return $clauses;
163	}
164
165	/**
166	* Prevent unauthorised post edit page by direct URL
167	*
168	* @since v.1.0.0
169	*/
170	public function check_if_current_users_post(){
171	if (! current_user_can(tutor()->instructor_role)) {
172	return;
173	}
174
175	if (! empty($_GET['post']) ) {
176	$get_post_id = (int) sanitize_text_field($_GET['post']);
177	$get_post = get_post($get_post_id);
178	$current_user = get_current_user_id();
179
180	if ($get_post->post_author != $current_user){
181	global $wpdb;
182
183	$get_assigned_courses_ids = (int) $wpdb->get_var("SELECT user_id from {$wpdb->usermeta} WHERE user_id = {$current_user} AND meta_key = '_tutor_instructor_course_id' AND meta_value = {$get_post_id} ");
184
185	if ( ! $get_assigned_courses_ids){
186	wp_die(__('Permission Denied', 'tutor'));
187	}
188
189	}
190	}
191	}
192
193	/**
194	* Status
195	*/
196
197	public static function scan_template_files( $template_path = null ) {
198	if ( ! $template_path){
199	$template_path = tutor()->path.'templates/';
200	}
201
202
203	$files = @scandir( $template_path ); // @codingStandardsIgnoreLine.
204	$result = array();
205
206	if ( ! empty( $files ) ) {
207	foreach ( $files as $key => $value ) {
208	if ( ! in_array( $value, array( '.', '..', '.DS_Store' ), true ) ) {
209	if ( is_dir( $template_path . DIRECTORY_SEPARATOR . $value ) ) {
210	$sub_files = self::scan_template_files( $template_path . DIRECTORY_SEPARATOR . $value );
211	foreach ( $sub_files as $sub_file ) {
212	$result[] = $value . DIRECTORY_SEPARATOR . $sub_file;
213	}
214	} else {
215	$result[] = $value;
216	}
217	}
218	}
219	}
220	return $result;
221	}
222
223	/**
224	* @return array
225	*
226	*
227	*/
228	public static function template_overridden_files(){
229	$template_files = self::scan_template_files();
230
231	$override_files = array();
232	foreach ($template_files as $file){
233	$file_path = null;
234	if (file_exists(trailingslashit(get_stylesheet_directory()).tutor()->template_path.$file)){
235	$file_path = $file;
236	}elseif (file_exists(trailingslashit(get_template_directory()).tutor()->template_path.$file)){
237	$file_path = $file;
238	}
239
240	if ($file_path){
241	$override_files[] = str_replace( WP_CONTENT_DIR.'/themes/', '', $file_path );
242	}
243	}
244
245	return $override_files;
246	}
247
248	public static function get_environment_info(){
249
250	// Figure out cURL version, if installed.
251	$curl_version = '';
252	if ( function_exists( 'curl_version' ) ) {
253	$curl_version = curl_version();
254	$curl_version = $curl_version['version'] . ', ' . $curl_version['ssl_version'];
255	}
256
257
258	// WP memory limit.
259	$wp_memory_limit = tutor_utils()->let_to_num(WP_MEMORY_LIMIT);
260	if ( function_exists( 'memory_get_usage' ) ) {
261	$wp_memory_limit = max( $wp_memory_limit, tutor_utils()->let_to_num( @ini_get( 'memory_limit' ) ) );
262	}
263
264	$database_version = tutor_utils()->get_db_version();
265
266	return array(
267	'home_url' => get_option( 'home' ),
268	'site_url' => get_option( 'siteurl' ),
269	'version' => tutor()->version,
270	'wp_version' => get_bloginfo( 'version' ),
271	'wp_multisite' => is_multisite(),
272	'wp_memory_limit' => $wp_memory_limit,
273	'wp_debug_mode' => ( defined( 'WP_DEBUG' ) && WP_DEBUG ),
274	'wp_cron' => ! ( defined( 'DISABLE_WP_CRON' ) && DISABLE_WP_CRON ),
275	'language' => get_locale(),
276	'external_object_cache' => wp_using_ext_object_cache(),
277	'server_info' => isset( $_SERVER['SERVER_SOFTWARE'] ) ? wp_unslash( $_SERVER['SERVER_SOFTWARE'] ) : '',
278	'php_version' => phpversion(),
279	'php_post_max_size' => tutor_utils()->let_to_num( ini_get( 'post_max_size' ) ),
280	'php_max_execution_time' => ini_get( 'max_execution_time' ),
281	'php_max_input_vars' => ini_get( 'max_input_vars' ),
282	'curl_version' => $curl_version,
283	'suhosin_installed' => extension_loaded( 'suhosin' ),
284	'max_upload_size' => wp_max_upload_size(),
285	'mysql_version' => $database_version['number'],
286	'mysql_version_string' => $database_version['string'],
287	'default_timezone' => date_default_timezone_get(),
288	'fsockopen_or_curl_enabled' => ( function_exists( 'fsockopen' ) \|\| function_exists( 'curl_init' ) ),
289	'soapclient_enabled' => class_exists( 'SoapClient' ),
290	'domdocument_enabled' => class_exists( 'DOMDocument' ),
291	'gzip_enabled' => is_callable( 'gzopen' ),
292	'mbstring_enabled' => extension_loaded( 'mbstring' ),
293	);
294
295	}
296
297
298	public function erase_tutor_data(){
299	global $wpdb;
300
301	$is_erase_data = tutor_utils()->get_option('delete_on_uninstall');
302	/*D/ //=> Deleting Data
303
304	$plugin_file = tutor()->basename;
305	if ($is_erase_data && current_user_can( 'deactivate_plugin', $plugin_file )) {
306	/**
307	* Deleting Post Type, Meta Data, taxonomy
308	*/
309	$course_post_type = tutor()->course_post_type;
310	$lesson_post_type = tutor()->lesson_post_type;
311
312	$post_types = array(
313	$course_post_type,
314	$lesson_post_type,
315	'tutor_quiz',
316	'tutor_question',
317	'tutor_enrolled',
318	'topics',
319	'tutor_enrolled',
320	'tutor_announcements',
321	);
322
323	$post_type_strings = "'".implode("','", $post_types)."'";
324	$tutor_posts = $wpdb->get_col("SELECT ID from {$wpdb->posts} WHERE post_type in({$post_type_strings}) ;");
325
326	if (is_array($tutor_posts) && count($tutor_posts)){
327	foreach ($tutor_posts as $post_id){
328	//Delete categories
329	$terms = wp_get_object_terms( $post_id, 'course-category' );
330	foreach( $terms as $term ){
331	/*D/ wp_remove_object_terms( $post_id, array( $term->term_id ), 'course-category' );
332	}
333
334	//Delete tags if available
335	$terms = wp_get_object_terms( $post_id, 'course-tag' );
336	foreach( $terms as $term ){
337	/*D/ wp_remove_object_terms( $post_id, array( $term->term_id ), 'course-tag' );
338	}
339
340	//Delete All Meta
341	/*D/ $wpdb->delete($wpdb->postmeta, array('post_id' => $post_id) );
342	/*D/ $wpdb->delete($wpdb->posts, array('ID' => $post_id) );
343	}
344	}
345
346	/**
347	* Deleting Comments (reviews, questions, quiz_answers, etc)
348	*/
349	$tutor_comments = $wpdb->get_col("SELECT comment_ID from {$wpdb->comments} WHERE comment_agent = 'comment_agent' ;");
350	$comments_ids_strings = "'".implode("','", $tutor_comments)."'";
351	if (is_array($tutor_comments) && count($tutor_comments)){
352	/*D/ $wpdb->query("DELETE from {$wpdb->commentmeta} WHERE comment_ID in({$comments_ids_strings}) ");
353	}
354	/*D/ $wpdb->delete($wpdb->comments, array('comment_agent' => 'comment_agent'));
355
356	/**
357	* Delete Options
358	*/
359
360	/*D/ delete_option('tutor_option');
361	/*D/ $wpdb->delete($wpdb->usermeta, array('meta_key' => '_is_tutor_student'));
362	/*D/ $wpdb->delete($wpdb->usermeta, array('meta_key' => '_tutor_instructor_approved'));
363	/*D/ $wpdb->delete($wpdb->usermeta, array('meta_key' => '_tutor_instructor_status'));
364	/*D/ $wpdb->delete($wpdb->usermeta, array('meta_key' => '_is_tutor_instructor'));
365	/*D/ $wpdb->query("DELETE FROM {$wpdb->usermeta} WHERE meta_key LIKE '%_tutor_completed_lesson_id_%' ");
366
367	//Deleting Table
368	$prefix = $wpdb->prefix;
369	/*D/ $wpdb->query("DROP TABLE IF EXISTS {$prefix}tutor_quiz_attempts, {$prefix}tutor_quiz_attempt_answers, {$prefix}tutor_quiz_questions, {$prefix}tutor_quiz_question_answers ");
370
371	deactivate_plugins($plugin_file);
372	}
373
374	wp_redirect('plugins.php');
375	die();
376	}
377
378	public function plugin_action_links($actions){
379	/*$hasPro = tutor()->has_pro;
380
381	if(!$hasPro){
382	$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
383	style="color: #39a700eb; font-weight: bold;">'.__('Upgrade to Pro', 'wp-megamenu').'</span></a>';
384	}*/
385
386	$is_erase_data = tutor_utils()->get_option('delete_on_uninstall');
387
388	if ($is_erase_data) {
389	$plugin_file = tutor()->basename;
390	if ( current_user_can( 'deactivate_plugin', $plugin_file ) ) {
391	if ( isset( $actions['deactivate'] ) ) {
392	$actions['deactivate'] = '<a href="admin.php?page=tutor-uninstall">' . __('Uninstall', 'tutor') . '</a>';
393	}
394	}
395	}
396
397	$actions['settings'] = '<a href="admin.php?page=tutor_settings">' . __('Settings', 'tutor') . '</a>';
398	return $actions;
399	}
400
401	public function plugin_row_meta($plugin_meta, $plugin_file){
402
403
404	if ($plugin_file === tutor()->basename) {
405	$plugin_meta[] = sprintf( '<a href="%s">%s</a>',
406	esc_url( 'https://www.themeum.com/docs/tutor-introduction/?utm_source=tutor&utm_medium=plugins_installation_list&utm_campaign=plugin_docs_link' ),
407	__( '<strong style="color: #03bd24">Documentation</strong>', 'tutor' )
408	);
409	$plugin_meta[] = sprintf( '<a href="%s">%s</a>',
410	esc_url( 'https://www.themeum.com/support-forums/?utm_source=tutor&utm_medium=plugins_installation_list&utm_campaign=plugin_support_link' ),
411	__( '<strong style="color: #03bd24">Get Support</strong>', 'tutor' )
412	);
413	}
414
415	return $plugin_meta;
416	}
417
418
419
420	}