Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/auth/courses.php

392 lines
13 KiB

<?php
/* For licensing terms, see /license.txt */
use Chamilo\CoreBundle\Entity\SequenceResource;
/**
* Template (front controller in MVC pattern) used for dispatching
* to the controllers depend on the current action.
*
* @author Christian Fasanando <christian1827@gmail.com> - Beeznest
*
* @package chamilo.auth
*/
// Delete the globals['_cid'], we don't need it here.
$cidReset = true; // Flag forcing the 'current course' reset
require_once __DIR__.'/../inc/global.inc.php';
$ctok = Security::get_existing_token();
// Get Limit data
$limit = CoursesController::getLimitArray();
// Section for the tabs.
$this_section = SECTION_CATALOG;
if (api_get_setting('course_catalog_published') !== 'true') {
// Access rights: anonymous users can't do anything useful here.
api_block_anonymous_users();
}
//For students
$user_can_view_page = true;
if (api_get_setting('allow_students_to_browse_courses') === 'false') {
$user_can_view_page = false;
}
//For teachers/admins
if (api_is_platform_admin() || api_is_course_admin() || api_is_allowed_to_create_course()) {
$user_can_view_page = true;
}
// filter actions
$actions = [
'sortmycourses',
'createcoursecategory',
'subscribe',
'deletecoursecategory',
'display_courses',
'display_random_courses',
'subscribe_user_with_password',
'display_sessions',
'subscribe_to_session',
'search_tag',
'search_session',
'set_collapsable',
'subscribe_course_validation',
'subscribe_course',
];
$action = CoursesAndSessionsCatalog::is(CATALOG_SESSIONS) ? 'display_sessions' : 'display_courses';
if (isset($_GET['action']) && in_array($_GET['action'], $actions)) {
$action = Security::remove_XSS($_GET['action']);
}
$categoryCode = isset($_GET['category_code']) && !empty($_GET['category_code']) ? $_GET['category_code'] : 'ALL';
$searchTerm = isset($_REQUEST['search_term']) ? Security::remove_XSS($_REQUEST['search_term']) : '';
$nameTools = CourseCategory::getCourseCatalogNameTools($action);
if (empty($nameTools)) {
$nameTools = get_lang('CourseManagement');
} else {
if (!in_array($action, ['sortmycourses', 'createcoursecategory', 'display_random_courses', 'display_courses', 'subscribe'])) {
$interbreadcrumb[] = [
'url' => api_get_path(WEB_CODE_PATH).'auth/courses.php',
'name' => get_lang('CourseManagement'),
];
}
if ($action === 'createcoursecategory') {
$interbreadcrumb[] = [
'url' => api_get_path(WEB_CODE_PATH).'auth/courses.php?action=sortmycourses',
'name' => get_lang('SortMyCourses'),
];
}
$interbreadcrumb[] = ['url' => '#', 'name' => $nameTools];
}
// course description controller object
$courseController = new CoursesController();
// We are moving a course or category of the user up/down the list (=Sort My Courses).
if (isset($_GET['move'])) {
if (isset($_GET['course'])) {
$courseController->move_course(
$_GET['move'],
$_GET['course'],
$_GET['category']
);
}
if (isset($_GET['category']) && !isset($_GET['course'])) {
$courseController->move_category($_GET['move'], $_GET['category']);
}
}
// We are moving the course of the user to a different user defined course category (=Sort My Courses).
if (isset($_POST['submit_change_course_category'])) {
if (!empty($_POST['sec_token']) && $ctok == $_POST['sec_token']) {
$courseController->change_course_category(
$_POST['course_2_edit_category'],
$_POST['course_categories']
);
}
}
// We edit course category
if (isset($_POST['submit_edit_course_category']) &&
isset($_POST['title_course_category']) &&
strlen(trim($_POST['title_course_category'])) > 0
) {
if (!empty($_POST['sec_token']) && $ctok == $_POST['sec_token']) {
$courseController->edit_course_category(
$_POST['title_course_category'],
$_POST['edit_course_category']
);
}
}
// we are deleting a course category
if (isset($_POST['create_course_category']) &&
isset($_POST['title_course_category']) &&
strlen(trim($_POST['title_course_category'])) > 0
) {
if (!empty($_POST['sec_token']) && $ctok == $_POST['sec_token']) {
$courseController->addCourseCategory($_POST['title_course_category']);
}
}
// search courses
if (isset($_REQUEST['search_course'])) {
if (!empty($_REQUEST['sec_token']) && $ctok == $_REQUEST['sec_token']) {
$courseController->search_courses(
$searchTerm,
null,
null,
null,
$limit,
true
);
exit;
}
}
// Subscribe user to course
if (isset($_GET['unsubscribe'])) {
if (!empty($_GET['sec_token']) && $ctok == $_GET['sec_token']) {
$courseController->unsubscribe_user_from_course(
$_GET['unsubscribe'],
$searchTerm,
$categoryCode
);
}
}
// We are unsubscribing from a course (=Unsubscribe from course).
if (isset($_POST['unsubscribe'])) {
if (!empty($_POST['sec_token']) && $ctok == $_POST['sec_token']) {
$courseController->unsubscribe_user_from_course($_POST['unsubscribe']);
}
}
switch ($action) {
case 'deletecoursecategory':
// we are deleting a course category
if (isset($_GET['id'])) {
if (Security::check_token('get')) {
$courseController->delete_course_category($_GET['id']);
header('Location: '.api_get_self());
exit;
}
}
break;
case 'subscribe_course':
if (api_is_anonymous()) {
header('Location: '.api_get_path(WEB_CODE_PATH).'auth/inscription.php?c='.$courseCodeToSubscribe);
exit;
}
$courseCodeToSubscribe = isset($_GET['subscribe_course']) ? Security::remove_XSS($_GET['subscribe_course']) : '';
if (Security::check_token('get')) {
CourseManager::autoSubscribeToCourse($courseCodeToSubscribe);
header('Location: '.api_get_self());
exit;
}
break;
case 'subscribe_course_validation':
$courseCodeToSubscribe = isset($_GET['subscribe_course']) ? Security::remove_XSS($_GET['subscribe_course']) : '';
$courseInfo = api_get_course_info($courseCodeToSubscribe);
if (empty($courseInfo)) {
header('Location: '.api_get_self());
exit;
}
$message = get_lang('CourseRequiresPassword').' ';
$message .= $courseInfo['title'].' ('.$courseInfo['visual_code'].') ';
$action = api_get_self().
'?action=subscribe_course_validation&sec_token='.Security::getTokenFromSession().'&subscribe_course='.$courseCodeToSubscribe;
$form = new FormValidator(
'subscribe_user_with_password',
'post',
$action
);
$form->addHeader($message);
$form->addElement('hidden', 'sec_token', Security::getTokenFromSession());
$form->addElement('hidden', 'subscribe_user_with_password', $courseInfo['code']);
$form->addElement('text', 'course_registration_code');
$form->addButtonSave(get_lang('SubmitRegistrationCode'));
$content = $form->returnForm();
if ($form->validate()) {
if (sha1($_POST['course_registration_code']) === $courseInfo['registration_code']) {
CourseManager::autoSubscribeToCourse($_POST['subscribe_user_with_password']);
header('Location: '.api_get_self());
exit;
} else {
Display::addFlash(Display::return_message(get_lang('CourseRegistrationCodeIncorrect')), 'warning');
header('Location: '.$action);
exit;
}
}
$template = new Template(get_lang('Subscribe'), true, true, false, false, false);
$template->assign('content', $content);
$template->display_one_col_template();
break;
case 'createcoursecategory':
$courseController->categoryList();
break;
case 'deletecoursecategory':
$courseController->courseList($action);
break;
case 'sortmycourses':
$courseController->courseList($action);
break;
case 'subscribe':
if (!$user_can_view_page) {
api_not_allowed(true);
}
header('Location: '.api_get_self());
exit;
break;
case 'display_random_courses':
if (!$user_can_view_page) {
api_not_allowed(true);
}
$courseController->courses_categories($action);
break;
case 'display_courses':
if (!$user_can_view_page) {
api_not_allowed(true);
}
$courseController->courses_categories(
$action,
$categoryCode,
null,
null,
null,
$limit
);
break;
case 'display_sessions':
if (!$user_can_view_page) {
api_not_allowed(true);
}
$courseController->sessionsList($action, $nameTools, $limit);
break;
case 'subscribe_to_session':
if (!$user_can_view_page) {
api_not_allowed(true);
}
$userId = api_get_user_id();
$confirmed = isset($_GET['confirm']);
$sessionId = (int) $_GET['session_id'];
if (empty($userId)) {
api_not_allowed();
exit;
}
if (!$confirmed) {
$template = new Template(null, false, false, false, false, false);
$template->assign('session_id', $sessionId);
$layout = $template->get_template('auth/confirm_session_subscription.tpl');
echo $template->fetch($layout);
exit;
}
$registrationAllowed = api_get_setting('catalog_allow_session_auto_subscription');
if ($registrationAllowed === 'true') {
$entityManager = Database::getManager();
$repository = $entityManager->getRepository('ChamiloCoreBundle:SequenceResource');
$sequences = $repository->getRequirements(
$sessionId,
SequenceResource::SESSION_TYPE
);
if (count($sequences) > 0) {
$requirementsData = SequenceResourceManager::checkRequirementsForUser(
$sequences,
SequenceResource::SESSION_TYPE,
$userId
);
$continueWithSubscription = SequenceResourceManager::checkSequenceAreCompleted($requirementsData);
if (!$continueWithSubscription) {
header('Location: '.api_get_path(WEB_CODE_PATH).'auth/courses.php');
exit;
}
}
SessionManager::subscribeUsersToSession(
$sessionId,
[$userId],
SESSION_VISIBLE_READ_ONLY,
false
);
$coursesList = SessionManager::get_course_list_by_session_id($sessionId);
$count = count($coursesList);
$url = '';
if ($count <= 0) {
// no course in session -> return to catalog
$url = api_get_path(WEB_CODE_PATH).'auth/courses.php';
} elseif ($count == 1) {
// only one course, so redirect directly to this course
foreach ($coursesList as $course) {
$url = api_get_path(WEB_COURSE_PATH).$course['directory'].'/index.php?id_session='.$sessionId;
}
} else {
$url = api_get_path(WEB_CODE_PATH).'session/index.php?session_id='.$sessionId;
}
header('Location: '.$url);
exit;
}
//else show error message?
break;
case 'search_tag':
if (!$user_can_view_page) {
api_not_allowed(true);
}
$courseController->sessionsListByCoursesTag($limit);
break;
case 'search_session':
if (!$user_can_view_page) {
api_not_allowed(true);
}
$courseController->sessionListBySearch($limit);
break;
case 'set_collapsable':
api_block_anonymous_users();
if (!api_get_configuration_value('allow_user_course_category_collapsable')) {
api_not_allowed(true);
}
$userId = api_get_user_id();
$categoryId = isset($_REQUEST['categoryid']) ? (int) $_REQUEST['categoryid'] : 0;
$option = isset($_REQUEST['option']) ? (int) $_REQUEST['option'] : 0;
if (empty($userId) || empty($categoryId)) {
api_not_allowed(true);
}
$table = Database::get_main_table(TABLE_USER_COURSE_CATEGORY);
$sql = "UPDATE $table
SET collapsed = $option
WHERE user_id = $userId AND id = $categoryId";
Database::query($sql);
Display::addFlash(Display::return_message(get_lang('Updated')));
$url = api_get_path(WEB_CODE_PATH).'auth/courses.php?action=sortmycourses';
header('Location: '.$url);
exit;
break;
}