Actualización

main/inc/ajax/course_chat.ajax.php

@@ -0,0 +1,98 @@
+<?php
+/* For licensing terms, see /license.txt */
+/**
+ * Responses to AJAX calls for course chat.
+ */
+
+use Symfony\Component\HttpFoundation\JsonResponse as HttpResponse;
+use Symfony\Component\HttpFoundation\Request as HttpRequest;
+
+require_once __DIR__.'/../global.inc.php';
+
+if (!api_protect_course_script(false)) {
+    exit;
+}
+
+$courseId = api_get_course_int_id();
+$userId = api_get_user_id();
+$sessionId = api_get_session_id();
+$groupId = api_get_group_id();
+$json = ['status' => false];
+
+$httpRequest = HttpRequest::createFromGlobals();
+$httpResponse = HttpResponse::create();
+
+$courseChatUtils = new CourseChatUtils($courseId, $userId, $sessionId, $groupId);
+
+$token = Security::getTokenFromSession('course_chat');
+
+if ($httpRequest->headers->get('x-token') !== $token) {
+    $_REQUEST['action'] = 'error';
+}
+
+switch ($_REQUEST['action']) {
+    case 'chat_logout':
+        $logInfo = [
+            'tool' => TOOL_CHAT,
+            'action' => 'exit',
+            'action_details' => 'exit-chat',
+        ];
+        Event::registerLog($logInfo);
+        break;
+    case 'track':
+        $courseChatUtils->keepUserAsConnected();
+        $courseChatUtils->disconnectInactiveUsers();
+
+        $friend = isset($_REQUEST['friend']) ? (int) $_REQUEST['friend'] : 0;
+        $filePath = $courseChatUtils->getFileName(true, $friend);
+        $newFileSize = file_exists($filePath) ? filesize($filePath) : 0;
+        $oldFileSize = isset($_GET['size']) ? (int) $_GET['size'] : -1;
+        $newUsersOnline = $courseChatUtils->countUsersOnline();
+        $oldUsersOnline = isset($_GET['users_online']) ? (int) $_GET['users_online'] : 0;
+
+        $json = [
+            'status' => true,
+            'data' => [
+                'oldFileSize' => file_exists($filePath) ? filesize($filePath) : 0,
+                'history' => $newFileSize !== $oldFileSize ? $courseChatUtils->readMessages(false, $friend) : null,
+                'usersOnline' => $newUsersOnline,
+                'userList' => $newUsersOnline != $oldUsersOnline ? $courseChatUtils->listUsersOnline() : null,
+                'currentFriend' => $friend,
+            ],
+        ];
+
+        break;
+    case 'preview':
+        $json = [
+            'status' => true,
+            'data' => [
+                'message' => CourseChatUtils::prepareMessage($_REQUEST['message']),
+            ],
+        ];
+        break;
+    case 'reset':
+        $friend = isset($_REQUEST['friend']) ? (int) $_REQUEST['friend'] : 0;
+
+        $json = [
+            'status' => true,
+            'data' => $courseChatUtils->readMessages(true, $friend),
+        ];
+        break;
+    case 'write':
+        $friend = isset($_REQUEST['friend']) ? (int) $_REQUEST['friend'] : 0;
+        $writed = $courseChatUtils->saveMessage($_POST['message'], $friend);
+
+        $json = [
+            'status' => $writed,
+            'data' => [
+                'writed' => $writed,
+            ],
+        ];
+        break;
+}
+
+$token = Security::get_token('course_chat');
+
+$httpResponse->headers->set('x-token', $token);
+$httpResponse->setData($json);
+$httpResponse->send();