Grav\Plugin\Admin\AdminController::taskAddmedia PHP Метод

    protected function taskAddmedia()
    {
        if (!$this->authorizeTask('add media', ['admin.pages', 'admin.super'])) {
            return false;
        }
        $page = $this->admin->page(true);
        /** @var Config $config */
        $config = $this->grav['config'];
        if (!isset($_FILES['file']['error']) || is_array($_FILES['file']['error'])) {
            $this->admin->json_response = ['status' => 'error', 'message' => $this->admin->translate('PLUGIN_ADMIN.INVALID_PARAMETERS')];
            return false;
        }
        // Check $_FILES['file']['error'] value.
        switch ($_FILES['file']['error']) {
            case UPLOAD_ERR_OK:
                break;
            case UPLOAD_ERR_NO_FILE:
                $this->admin->json_response = ['status' => 'error', 'message' => $this->admin->translate('PLUGIN_ADMIN.NO_FILES_SENT')];
                return false;
            case UPLOAD_ERR_INI_SIZE:
            case UPLOAD_ERR_FORM_SIZE:
                $this->admin->json_response = ['status' => 'error', 'message' => $this->admin->translate('PLUGIN_ADMIN.EXCEEDED_FILESIZE_LIMIT')];
                return false;
            case UPLOAD_ERR_NO_TMP_DIR:
                $this->admin->json_response = ['status' => 'error', 'message' => $this->admin->translate('PLUGIN_ADMIN.UPLOAD_ERR_NO_TMP_DIR')];
                return false;
            default:
                $this->admin->json_response = ['status' => 'error', 'message' => $this->admin->translate('PLUGIN_ADMIN.UNKNOWN_ERRORS')];
                return false;
        }
        $grav_limit = $config->get('system.media.upload_limit', 0);
        // You should also check filesize here.
        if ($grav_limit > 0 && $_FILES['file']['size'] > $grav_limit) {
            $this->admin->json_response = ['status' => 'error', 'message' => $this->admin->translate('PLUGIN_ADMIN.EXCEEDED_GRAV_FILESIZE_LIMIT')];
            return false;
        }
        // Check extension
        $fileParts = pathinfo($_FILES['file']['name']);
        $fileExt = '';
        if (isset($fileParts['extension'])) {
            $fileExt = strtolower($fileParts['extension']);
        }
        // If not a supported type, return
        if (!$fileExt || !$config->get("media.types.{$fileExt}")) {
            $this->admin->json_response = ['status' => 'error', 'message' => $this->admin->translate('PLUGIN_ADMIN.UNSUPPORTED_FILE_TYPE') . ': ' . $fileExt];
            return false;
        }
        // Upload it
        if (!move_uploaded_file($_FILES['file']['tmp_name'], sprintf('%s/%s', $page->path(), $_FILES['file']['name']))) {
            $this->admin->json_response = ['status' => 'error', 'message' => $this->admin->translate('PLUGIN_ADMIN.FAILED_TO_MOVE_UPLOADED_FILE')];
            return false;
        }
        $this->grav->fireEvent('onAdminAfterAddMedia', new Event(['page' => $page]));
        $this->admin->json_response = ['status' => 'success', 'message' => $this->admin->translate('PLUGIN_ADMIN.FILE_UPLOADED_SUCCESSFULLY')];
        return true;
    }