Neos\Neos\Domain\Model\Site::getPrimaryDomain PHP Метод

    public function getPrimaryDomain()
    {
        return isset($this->primaryDomain) && $this->primaryDomain->getActive() ? $this->primaryDomain : $this->getFirstActiveDomain();
    }

 /**
  * @param ControllerContext $controllerContext
  * @param Site $site
  * @return string
  * @throws NeosException
  */
 public function createSiteUri(ControllerContext $controllerContext, Site $site)
 {
     $primaryDomain = $site->getPrimaryDomain();
     if ($primaryDomain === null) {
         throw new NeosException(sprintf('Cannot link to a site "%s" since it has no active domains.', $site->getName()), 1460443524);
     }
     $requestUri = $controllerContext->getRequest()->getHttpRequest()->getUri();
     $baseUri = $controllerContext->getRequest()->getHttpRequest()->getBaseUri();
     $port = $primaryDomain->getPort() ?: $requestUri->getPort();
     return sprintf('%s://%s%s%s', $primaryDomain->getScheme() ?: $requestUri->getScheme(), $primaryDomain->getHostPattern(), $port && !in_array($port, [80, 443], true) ? ':' . $port : '', rtrim($baseUri->getPath(), '/'));
 }