/// <summary>Creates an absolute url from the specified path.</summary>
/// <param name="request">The request to act on.</param>
/// <param name="path">The relative path.</param>
/// <returns>The new absolute URL.</returns>
public static Uri CreateAbsoluteUrl(this IOwinRequest request, string path)
{
if (string.IsNullOrEmpty(path) || !request.IsRelativeUrl(path))
{
throw new ArgumentException(nameof(path));
}
return(new Uri($"{request.Uri.Scheme}://{request.Uri.Host}{path}"));
}
/// <summary>Compares the specified url with the request and determines if the url is on the same domain.</summary>
/// <param name="request">The request to act on.</param>
/// <param name="url">The url to compare.</param>
/// <returns>true if url is on the same domain, false if not.</returns>
public static bool IsLocalUrl(this IOwinRequest request, string url)
{
if (string.IsNullOrEmpty(url))
{
return(false);
}
// If it is an absolute url, validate that the base is the same as the current request
Uri absoluteUri;
if (Uri.TryCreate(url, UriKind.Absolute, out absoluteUri))
{
var host = new Uri(request.Uri.GetLeftPart(UriPartial.Authority));
if (host.IsBaseOf(absoluteUri))
{
return(true);
}
return(false);
}
// Check if it is a valid relative url
return(request.IsRelativeUrl(url));
}
