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- <?php
- /* For licensing terms, see /license.txt */
- /**
- * Responses to AJAX calls
- */
- $_dont_save_user_course_access = true;
- require_once __DIR__.'/../global.inc.php';
- if (api_get_setting('allow_global_chat') == 'false') {
- exit;
- }
- $action = isset($_REQUEST['action']) ? $_REQUEST['action'] : null;
- if (api_is_anonymous()) {
- exit;
- }
- // Course Chat
- if ($action == 'preview') {
- echo CourseChatUtils::prepareMessage($_REQUEST['message']);
- exit;
- }
- $toUserId = isset($_REQUEST['to']) ? $_REQUEST['to'] : null;
- $message = isset($_REQUEST['message']) ? $_REQUEST['message'] : null;
- if (!isset($_SESSION['chatHistory'])) {
- $_SESSION['chatHistory'] = array();
- }
- if (!isset($_SESSION['openChatBoxes'])) {
- $_SESSION['openChatBoxes'] = array();
- }
- $chat = new Chat();
- if (chat::disableChat()) {
- exit;
- }
- if ($chat->is_chat_blocked_by_exercises()) {
- // Disconnecting the user
- $chat->setUserStatus(0);
- exit;
- }
- switch ($action) {
- case 'chatheartbeat':
- $chat->heartbeat();
- break;
- case 'closechat':
- $chat->close();
- break;
- case 'sendchat':
- $chat->send(api_get_user_id(), $toUserId, $message);
- break;
- case 'startchatsession':
- $chat->startSession();
- break;
- case 'get_previous_messages':
- $userId = isset($_REQUEST['user_id']) ? $_REQUEST['user_id'] : null;
- $visibleMessages = isset($_REQUEST['visible_messages']) ? $_REQUEST['visible_messages'] : null;
- if (empty($userId)) {
- return '';
- }
- $items = $chat->getPreviousMessages(
- $userId,
- api_get_user_id(),
- $visibleMessages
- );
- echo json_encode($items);
- exit;
- break;
- case 'set_status':
- $status = isset($_REQUEST['status']) ? intval($_REQUEST['status']) : 0;
- $chat->setUserStatus($status);
- break;
- case 'create_room':
- $room = VideoChat::getChatRoomByUsers(api_get_user_id(), $toUserId);
- if ($room === false) {
- $createdRoom = VideoChat::createRoom(api_get_user_id(), $toUserId);
- if ($createdRoom === false) {
- echo Display::return_message(
- get_lang('ChatRoomNotCreated'),
- 'error'
- );
- break;
- }
- $room = VideoChat::getChatRoomByUsers(api_get_user_id(), $toUserId);
- }
- $videoChatUrl = api_get_path(WEB_CODE_PATH) . "chat/video.php?room={$room['id']}";
- $videoChatLink = Display::url(
- Display::returnFontAwesomeIcon('video-camera').get_lang('StartVideoChat'),
- $videoChatUrl
- );
- $chat->send(
- api_get_user_id(),
- $toUserId,
- $videoChatLink,
- false,
- false
- );
- echo Display::tag('p', $videoChatLink, ['class' => 'lead']);
- break;
- case 'notify_not_support':
- $chat->send(
- api_get_user_id(),
- $toUserId,
- get_lang('TheXUserBrowserDoesNotSupportWebRTC')
- );
- break;
- default:
- echo '';
- }
- exit;
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