public async Task <IActionResult> Index()
{
ViewBag.InitialUrl = Url.Action(nameof(Start), typeof(RedirectUrlFinderServiceController).ControllerName(), null, Request.Scheme);
ViewBag.FinalUrl = await _redirectUrlFinderService.GetRedirectUrlAsync(ViewBag.InitialUrl);
return(View());
}
/// <summary>
/// URL normalization is the process by which URLs are modified and standardized in a consistent manner. The goal of the normalization process is to transform a URL into a normalized URL so it is possible to determine if two syntactically different URLs may be equivalent.
/// https://en.wikipedia.org/wiki/URL_normalization
/// </summary>
public async Task <string> NormalizeUrlAsync(Uri uri, bool findRedirectUrl)
{
if (findRedirectUrl)
{
uri = await _locationFinder.GetRedirectUrlAsync(uri) ?? uri;
}
var url = urlToLower(uri);
url = limitProtocols(url);
url = removeDefaultDirectoryIndexes(url);
url = removeTheFragment(url);
url = removeDuplicateSlashes(url);
url = addWww(url);
url = removeFeedburnerPart1(url);
url = removeFeedburnerPart2(url);
return(removeTrailingSlashAndEmptyQuery(url));
}
