isMainRequest()) {
            // Do nothing on subrequests
            return;
        }

        $request = $event->getRequest();

        // Ignore debug toolbar
        if ('_wdt' === $request->attributes->get('_route')) {
            return;
        }

        // Ignore profiler toolbar
        if ('_wdt' === $request->attributes->get('_profiler')) {
            return;
        }

        // Skip all course/session logic during installation pages.
        // This prevents crashes when APP_INSTALLED is wrong or the DB is not ready yet.
        $path = $request->getPathInfo();
        if (\is_string($path) && str_starts_with($path, '/main/install/')) {
            return;
        }

        // Always reset context roles at the beginning of each main request
        $this->resetContextRolesOnTokenUser();

        if (true === $cidReset) {
            $this->cleanSessionHandler($request);

            return;
        }

        // Prevent "Session has not been set" during early bootstrap or install.
        if (!$request->hasSession()) {
            // No session available yet, so we cannot safely store course/session context.
            return;
        }

        $sessionHandler = $request->getSession();
        $twig = $this->twig;

        $course = null;
        $courseInfo = [];

        // Check if URL has cid value. Using Symfony request.
        $courseId = (int) $request->get('cid');
        $checker = $this->authorizationChecker;

        if (!empty($courseId)) {
            if ($sessionHandler->has('course')) {
                /** @var Course $courseFromSession */
                $courseFromSession = $sessionHandler->get('course');
                if ($courseFromSession instanceof Course && $courseId === $courseFromSession->getId()) {
                    $course = $courseFromSession;
                    $courseInfo = (array) $sessionHandler->get('_course');
                }
            }

            if (null === $course) {
                $course = $this->entityManager->find(Course::class, $courseId);

                if (null === $course) {
                    throw new NotFoundHttpException($this->translator->trans('Course does not exist'));
                }

                $courseInfo = api_get_course_info($course->getCode());
            }

            // Setting variables in the session.
            $sessionHandler->set('course', $course);
            $sessionHandler->set('_real_cid', $course->getId());
            $sessionHandler->set('cid', $course->getId());
            $sessionHandler->set('_cid', $course->getCode());
            $sessionHandler->set('_course', $courseInfo);
            ChamiloSession::write('cid', $course->getId());
            ChamiloSession::write('_real_cid', $course->getId());
            ChamiloSession::write('_course', $courseInfo);

            // Setting variables for the twig templates.
            $twig->addGlobal('course', $course);

            $ltiAccessRestored = true === $request->attributes->get('_lti_provider_access_restored');

            if ($ltiAccessRestored) {
                $ltiUserId = (int) $request->attributes->get('_lti_provider_user_id', 0);
                $ltiCourseId = (int) $request->attributes->get('_lti_provider_course_id', 0);

                if (
                    $ltiUserId > 0
                    && $ltiCourseId > 0
                    && $ltiCourseId === (int) $course->getId()
                ) {
                    return;
                }
            }

            if (false === $checker->isGranted(CourseVoter::VIEW, $course)) {
                throw new NotAllowedException($this->translator->trans("You're not allowed in this course"));
            }

            // Checking if sid is used.
            $sessionId = (int) $request->get('sid');

            if (empty($sessionId)) {
                $sessionHandler->remove('session_name');
                $sessionHandler->remove('sid');
                $sessionHandler->remove('session');
                ChamiloSession::erase('session_name');
                ChamiloSession::erase('sid');
                ChamiloSession::erase('session');
            } else {
                $session = $this->entityManager->find(Session::class, $sessionId);
                if (null !== $session) {
                    $session->setCurrentCourse($course);

                    if (false === $checker->isGranted(SessionVoter::VIEW, $session)) {
                        throw new AccessDeniedHttpException($this->translator->trans("You're not allowed in this session"));
                    }
                    $sessionHandler->set('session_name', $session->getTitle());
                    $sessionHandler->set('sid', $session->getId());
                    $sessionHandler->set('session', $session);
                    ChamiloSession::write('sid', $session->getId());

                    $twig->addGlobal('session', $session);
                } else {
                    throw new NotFoundHttpException($this->translator->trans('Session not found'));
                }
            }

            // Group
            $groupId = (int) $request->get('gid');

            if (empty($groupId)) {
                $sessionHandler->remove('gid');
                ChamiloSession::erase('gid');
            } else {
                $group = $this->entityManager->getRepository(CGroup::class)->find($groupId);

                if (null === $group) {
                    throw new NotFoundHttpException($this->translator->trans('Group not found'));
                }

                $group->setParent($course);

                if (false === $checker->isGranted(GroupVoter::VIEW, $group)) {
                    throw new AccessDeniedHttpException($this->translator->trans("You're not allowed in this group"));
                }

                $sessionHandler->set('group', $group);
                $sessionHandler->set('gid', $groupId);
                ChamiloSession::write('gid', $groupId);
            }

            $query = $request->query->all();
            $body = $request->request->all();
            $origin = self::normalizeOrigin(
                $query['origin'] ?? $body['origin'] ?? null
            );

            if (!empty($origin)) {
                $sessionHandler->set('origin', $origin);
            }

            $courseParams = $this->generateCourseUrl($course, $sessionId, $groupId, $origin);
            $sessionHandler->set('course_url_params', $courseParams);
            $twig->addGlobal('course_url_params', $courseParams);
        } else {
            $this->cleanSessionHandler($request);
        }
    }

    /**
     * Once the onKernelRequest was fired, we check if the course/session object were set and we inject them in the controller.
     */
    public function onKernelController(ControllerEvent $event): void
    {
        $controllerList = $event->getController();

        if (!\is_array($controllerList)) {
            return;
        }

        $request = $event->getRequest();

        // Prevent "Session has not been set" during early bootstrap or install.
        if (!$request->hasSession()) {
            return;
        }

        // Skip injection during installation pages.
        $path = $request->getPathInfo();
        if (\is_string($path) && str_starts_with($path, '/main/install/')) {
            return;
        }

        $sessionHandler = $request->getSession();

        $courseId = (int) $request->get('cid');

isMainRequest()) {
            // Do nothing on subrequests
            return;
        }

        $request = $event->getRequest();

        // Ignore debug toolbar
        if ('_wdt' === $request->attributes->get('_route')) {
            return;
        }

        // Ignore profiler toolbar
        if ('_wdt' === $request->attributes->get('_profiler')) {
            return;
        }

        // Skip all course/session logic during installation pages.
        // This prevents crashes when APP_INSTALLED is wrong or the DB is not ready yet.
        $path = $request->getPathInfo();
        if (\is_string($path) && str_starts_with($path, '/main/install/')) {
            return;
        }

        // Always reset context roles at the beginning of each main request
        $this->resetContextRolesOnTokenUser();

        if (true === $cidReset) {
            $this->cleanSessionHandler($request);

            return;
        }

        // Prevent "Session has not been set" during early bootstrap or install.
        if (!$request->hasSession()) {
            // No session available yet, so we cannot safely store course/session context.
            return;
        }

        $sessionHandler = $request->getSession();
        $twig = $this->twig;

        $course = null;
        $courseInfo = [];

        // Check if URL has cid value. Using Symfony request.
        $courseId = (int) $request->get('cid');
        $checker = $this->authorizationChecker;

        if (!empty($courseId)) {
            if ($sessionHandler->has('course')) {
                /** @var Course $courseFromSession */
                $courseFromSession = $sessionHandler->get('course');
                if ($courseFromSession instanceof Course && $courseId === $courseFromSession->getId()) {
                    $course = $courseFromSession;
                    $courseInfo = (array) $sessionHandler->get('_course');
                }
            }

            if (null === $course) {
                $course = $this->entityManager->find(Course::class, $courseId);

                if (null === $course) {
                    throw new NotFoundHttpException($this->translator->trans('Course does not exist'));
                }

                $courseInfo = api_get_course_info($course->getCode());
            }

            // Setting variables in the session.
            $sessionHandler->set('course', $course);
            $sessionHandler->set('_real_cid', $course->getId());
            $sessionHandler->set('cid', $course->getId());
            $sessionHandler->set('_cid', $course->getCode());
            $sessionHandler->set('_course', $courseInfo);
            ChamiloSession::write('cid', $course->getId());
            ChamiloSession::write('_real_cid', $course->getId());
            ChamiloSession::write('_course', $courseInfo);

            // Setting variables for the twig templates.
            $twig->addGlobal('course', $course);

            $ltiAccessRestored = true === $request->attributes->get('_lti_provider_access_restored');

            if ($ltiAccessRestored) {
                $ltiUserId = (int) $request->attributes->get('_lti_provider_user_id', 0);
                $ltiCourseId = (int) $request->attributes->get('_lti_provider_course_id', 0);

                if (
                    $ltiUserId > 0
                    && $ltiCourseId > 0
                    && $ltiCourseId === (int) $course->getId()
                ) {
                    return;
                }
            }

            if (false === $checker->isGranted(CourseVoter::VIEW, $course)) {
                throw new NotAllowedException($this->translator->trans("You're not allowed in this course"));
            }

            // Checking if sid is used.
            $sessionId = (int) $request->get('sid');

            if (empty($sessionId)) {
                $sessionHandler->remove('session_name');
                $sessionHandler->remove('sid');
                $sessionHandler->remove('session');
                ChamiloSession::erase('session_name');
                ChamiloSession::erase('sid');
                ChamiloSession::erase('session');
            } else {
                $session = $this->entityManager->find(Session::class, $sessionId);
                if (null !== $session) {
                    $session->setCurrentCourse($course);

                    if (false === $checker->isGranted(SessionVoter::VIEW, $session)) {
                        throw new AccessDeniedHttpException($this->translator->trans("You're not allowed in this session"));
                    }
                    $sessionHandler->set('session_name', $session->getTitle());
                    $sessionHandler->set('sid', $session->getId());
                    $sessionHandler->set('session', $session);
                    ChamiloSession::write('sid', $session->getId());

                    $twig->addGlobal('session', $session);
                } else {
                    throw new NotFoundHttpException($this->translator->trans('Session not found'));
                }
            }

            // Group
            $groupId = (int) $request->get('gid');

            if (empty($groupId)) {
                $sessionHandler->remove('gid');
                ChamiloSession::erase('gid');
            } else {
                $group = $this->entityManager->getRepository(CGroup::class)->find($groupId);

                if (null === $group) {
                    throw new NotFoundHttpException($this->translator->trans('Group not found'));
                }

                $group->setParent($course);

                if (false === $checker->isGranted(GroupVoter::VIEW, $group)) {
                    throw new AccessDeniedHttpException($this->translator->trans("You're not allowed in this group"));
                }

                $sessionHandler->set('group', $group);
                $sessionHandler->set('gid', $groupId);
                ChamiloSession::write('gid', $groupId);
            }

            $query = $request->query->all();
            $body = $request->request->all();
            $origin = self::normalizeOrigin(
                $query['origin'] ?? $body['origin'] ?? null
            );

            if (!empty($origin)) {
                $sessionHandler->set('origin', $origin);
            }

            $courseParams = $this->generateCourseUrl($course, $sessionId, $groupId, $origin);
            $sessionHandler->set('course_url_params', $courseParams);
            $twig->addGlobal('course_url_params', $courseParams);
        } else {
            $this->cleanSessionHandler($request);
        }
    }

    /**
     * Once the onKernelRequest was fired, we check if the course/session object were set and we inject them in the controller.
     */
    public function onKernelController(ControllerEvent $event): void
    {
        $controllerList = $event->getController();

        if (!\is_array($controllerList)) {
            return;
        }

        $request = $event->getRequest();

        // Prevent "Session has not been set" during early bootstrap or install.
        if (!$request->hasSession()) {
            return;
        }

        // Skip injection during installation pages.
        $path = $request->getPathInfo();
        if (\is_string($path) && str_starts_with($path, '/main/install/')) {
            return;
        }

        $sessionHandler = $request->getSession();

        $courseId = (int) $request->get('cid');

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8" />
    <meta name="robots" content="noindex,nofollow,noarchive" />
    <title>An Error Occurred: Internal Server Error</title>
    <link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 128 128%22><text y=%221.2em%22 font-size=%2296%22>❌</text></svg>" />
    <style>body { background-color: #fff; color: #222; font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; margin: 0; }
.container { margin: 30px; max-width: 600px; }
h1 { color: #dc3545; font-size: 24px; }
h2 { font-size: 18px; }</style>
</head>
<body>
<div class="container">
    <h1>Oops! An Error Occurred</h1>
    <h2>The server returned a "500 Internal Server Error".</h2>

    <p>
        Something is broken. Please let us know what you were doing when this error occurred.
        We will fix it as soon as possible. Sorry for any inconvenience caused.
    </p>
</div>
</body>
</html>