Piwik\Plugins\CoreUpdater\Updater::verifyDecompressedArchive PHP Method

    private function verifyDecompressedArchive($extractedArchiveDirectory)
    {
        $someExpectedFiles = array('/config/global.ini.php', '/index.php', '/core/Piwik.php', '/piwik.php', '/plugins/API/API.php');
        foreach ($someExpectedFiles as $file) {
            if (!is_file($extractedArchiveDirectory . $file)) {
                throw new Exception($this->translator->translate('CoreUpdater_ExceptionArchiveIncomplete', $file));
            }
        }
    }