public async Task <ActionResult> ResolveUrl(string key)
{
if (string.IsNullOrEmpty(key))
{
_logger.LogDebug("Url key is null or empty");
return(BadRequest());
}
var url = await _urlShortenerService.GetUrlAsync(key);
if (string.IsNullOrEmpty(url))
{
_logger.LogDebug($"Url is empty. Url key: [{key}]");
return(NotFound());
}
return(Redirect(url));
}
public async Task <ActionResult> ResolveUrl(string key)
{
_logger.LogDebug($"Resolving shortened url: {Request.Path.Value}");
if (string.IsNullOrEmpty(key))
{
_logger.LogDebug("Url key is null or empty");
return(BadRequest());
}
var url = await _urlShortenerService.GetUrlAsync(key);
if (string.IsNullOrEmpty(url))
{
_logger.LogDebug($"Url is empty. Url key: [{key}]");
return(NotFound());
}
Request.Headers.TryGetValue("Accept", out var accept);
if (!StringValues.IsNullOrEmpty(accept) && ((ICollection <string>)accept).Contains("application/json"))
{
var uri = new Uri(url);
var message = HttpUtility.ParseQueryString(uri.Query)["m"];
if (string.IsNullOrEmpty(message))
{
_logger.LogDebug("Url query param is null or empty");
return(StatusCode(StatusCodes.Status500InternalServerError));
}
var jsonMessage = message.FromBase64Url();
if (string.IsNullOrEmpty(jsonMessage))
{
_logger.LogDebug("JSON is null or empty");
return(StatusCode(StatusCodes.Status500InternalServerError));
}
_logger.LogDebug($"Returning JSON");
Response.Headers.Add("Location", url);
return(Content(jsonMessage, "application/json; charset=utf-8"));
}
_logger.LogDebug($"Redirecting to {url}");
return(Redirect(url));
}