/// <summary>
/// Expands the miniUri submitted or returns the original Url associated with this miniUrl
/// </summary>
/// <param name="miniUri">The Uri wrapping the mini url</param>
/// <returns>The original expanded Url string</returns>
/// <exception cref="ArgumentException"></exception>
public static string ExpandUrl(Uri miniUri)
{
if (miniUri == null || string.IsNullOrWhiteSpace(miniUri.AbsoluteUri))
{
throw new ArgumentException("miniUri is null or the url associated is null");
}
string miniUrlFragment = GetLastSegmentFromUrl(miniUri);
string originalUrl = EarlMiniRepository.GetOriginalUrl(miniUrlFragment);
return(originalUrl);
}
/// <summary>
/// Minifies or shortens the supplied urlstring using a randomly generated 8-characted aplhanumeric string or fragment
/// </summary>
/// <param name="uri">The uri wrapped around the url to minify</param>
/// <param name="useSecureMiniUrl"></param>
/// <returns></returns>
/// <exception cref="ArgumentException"></exception>
public static string MinifyUrl(Uri uri, bool useSecureMiniUrl = false)
{
if (uri == null || string.IsNullOrWhiteSpace(uri.AbsoluteUri))
{
throw new ArgumentException("uri is null or the url associated is null");
}
bool success;
string miniUrl;
string originalUrl = uri.AbsoluteUri;
int tries = MaxNumberOfTriesToGenerateUniqueFragment;
do
{
string fragment = GenerateFragment();
miniUrl = String.Format(useSecureMiniUrl ? SecureMiniUrlTemplate : UnSecureMiniUrlTemplate, HostName, fragment);
//Check if this url is already existing
string alreadyExistingMiniUrl = EarlMiniRepository.GetMiniUrl(originalUrl);
if (string.IsNullOrWhiteSpace(alreadyExistingMiniUrl))
{
success = EarlMiniRepository.SaveMiniUrl(originalUrl, fragment, miniUrl);
}
else
{
miniUrl = alreadyExistingMiniUrl;
success = true;
}
tries--;
} while (success == false && tries > 0);
if (success)
{
return(miniUrl);
}
return(string.Empty);
}
