/**
* Get the base URL for the request.
*
* @param string $scheme
* @param string $root
* @return string
*/
protected function getRootUrl($scheme, $root = null)
{
if (is_null($root)) {
if (is_null($this->cachedRoot)) {
$request = $this->app->make('request');
$this->cachedRoot = rtrim($request->getSchemeAndHttpHost() . $request->getBaseUrl(), '/');
}
$root = $this->cachedRoot;
}
$start = starts_with($root, 'http://') ? 'http://' : 'https://';
return preg_replace('~' . $start . '~', $scheme, $root, 1);
}
