/// <summary>
/// Rewrties url to preferred domain if necessary.
/// </summary>
/// <param name="request">The <see cref="HttpRequest"/> object.</param>
/// <param name="preferredDomain"></param>
/// <returns>The new URL to redirect to as an out parameter.</returns>
public string Rewrite(HttpRequest request, EPreferredDomain preferredDomain)
{
if (preferredDomain == EPreferredDomain.Auto)
{
return(null);
}
string host = request.Host.Value.ToLower();
// add "www"
// domain needs to have 1 dot so "blog.mysite.com" or "localhost:1234" would not rewrite
if (preferredDomain == EPreferredDomain.Www &&
!host.StartsWith("www.") &&
host.Count(c => c == '.') == 1)
{
return($"{request.Scheme}://www.{request.Host}{request.Path}{request.QueryString}");
}
// remove "www"
if (preferredDomain == EPreferredDomain.NonWww &&
host.StartsWith("www."))
{
host = request.Host.Value.Remove(0, 4);
return($"{request.Scheme}://{host}{request.Path}{request.QueryString}");
}
return(null);
}
public void RewriteTest(Mock <HttpRequest> request, EPreferredDomain preferredDomain, string expectedUrl)
{
string url = _rewriter.Rewrite(request.Object, preferredDomain);
Assert.Equal(expectedUrl, url);
}
