Http::getServerAddress

static function getServerAddress(): string
{
	static $publicUrl;
	if ($publicUrl === null)
	{
		$publicUrl = Option::get('imbot', 'portal_url');

		if (defined('BOT_CLIENT_URL'))
		{
			$publicUrl = BOT_CLIENT_URL;
		}
		if (empty($publicUrl))
		{
			$context = MainApplication::getInstance()->getContext();
			$scheme = $context->getRequest()->isHttps() ? 'https' : 'http';
			$server = $context->getServer();
			$domain = Option::get('main', 'server_name', '');
			if (empty($domain))
			{
				$domain = $server->getServerName();
			}
			if (preg_match('/^(?.+):(?d+)$/', $domain, $matches))
			{
				$domain = $matches['domain'];
				$port = (int)$matches['port'];
			}
			else
			{
				$port = (int)$server->getServerPort();
			}
			$port = in_array($port, [0, 80, 443]) ? '' : ':'.$port;

			$publicUrl = $scheme.'://'.$domain.$port;
		}
		if (!(mb_strpos($publicUrl, 'https://') === 0 || mb_strpos($publicUrl, 'http://') === 0))
		{
			$publicUrl = 'https://' . $publicUrl;
		}
	}

	return $publicUrl;
}