/// <summary>
/// Method to determine if string is a local url
/// </summary>
/// <param name="request">this HttpRequest</param>
/// <param name="url">string</param>
/// <returns>bool</returns>
/// <method>IsLocalUrl(this HttpRequest request, string url)</method>
public static bool IsLocalUrl(this HttpRequest request, string url)
{
if (string.IsNullOrEmpty(url))
{
return(false);
}
Uri absoluteUri;
if (Uri.TryCreate(url, UriKind.Absolute, out absoluteUri))
{
return(String.Equals(request.GetUri().Host, absoluteUri.Host,
StringComparison.OrdinalIgnoreCase));
}
else
{
bool isLocal = !url.StartsWith("http:", StringComparison.OrdinalIgnoreCase) &&
!url.StartsWith("https:", StringComparison.OrdinalIgnoreCase) &&
Uri.IsWellFormedUriString(url, UriKind.Relative);
return(isLocal);
}
}