private static IYubicoResponse DoVerify(string url, string userAgent)
{
var request = (HttpWebRequest)WebRequest.Create(url);
if (userAgent == null)
{
request.UserAgent = "YubicoDotNetClient version:" + Assembly.GetExecutingAssembly().GetName().Version;
}
else
{
request.UserAgent = userAgent;
}
request.Timeout = 15000;
HttpWebResponse rawResponse;
try
{
rawResponse = (HttpWebResponse)request.GetResponse();
}
catch (WebException)
{
return(null);
}
using (var dataStream = rawResponse.GetResponseStream())
{
if (dataStream != null)
{
using (var reader = new StreamReader(dataStream))
{
IYubicoResponse response;
try
{
response = new YubicoResponse(reader.ReadToEnd());
}
catch (ArgumentException)
{
return(null);
}
if (response.Status == YubicoResponseStatus.ReplayedRequest)
{
//throw new YubicoValidationException("Replayed request, this otp & nonce combination has been seen before.");
return(null);
}
return(response);
}
}
}
throw new YubicoValidationException();
}
private async static Task <IYubicoResponse> DoVerifyAsync(string url, string userAgent, CancellationToken token)
{
var request = new HttpRequestMessage
{
Method = HttpMethod.Get,
RequestUri = new Uri(url)
};
request.Headers.Add("User-Agent", userAgent ?? "YubicoDotNetClient");
try
{
var response = await _httpClient.SendAsync(request, token);
token.ThrowIfCancellationRequested();
if (!response.IsSuccessStatusCode)
{
return(null);
}
IYubicoResponse yubiResponse;
var responseContent = await response.Content.ReadAsStringAsync();
token.ThrowIfCancellationRequested();
try
{
yubiResponse = new YubicoResponse(responseContent, url);
}
catch (ArgumentException)
{
return(null);
}
token.ThrowIfCancellationRequested();
if (yubiResponse.Status == YubicoResponseStatus.ReplayedRequest)
{
//throw new YubicoValidationException("Replayed request, this otp & nonce combination has been seen before.");
return(null);
}
return(yubiResponse);
}
catch (TaskCanceledException)
{
// timeout
return(null);
}
}
private static IYubicoResponse DoVerify(string url, string userAgent)
{
var request = (HttpWebRequest)WebRequest.Create(url);
if (userAgent == null)
{
request.UserAgent = "YubicoDotNetClient version:" + Assembly.GetExecutingAssembly().GetName().Version;
}
else
{
request.UserAgent = userAgent;
}
request.Timeout = 15000;
HttpWebResponse rawResponse;
try
{
rawResponse = (HttpWebResponse)request.GetResponse();
}
catch (WebException)
{
return null;
}
using (var dataStream = rawResponse.GetResponseStream())
{
if (dataStream != null)
{
using (var reader = new StreamReader(dataStream))
{
IYubicoResponse response;
try
{
response = new YubicoResponse(reader.ReadToEnd(), url);
}
catch (ArgumentException)
{
return null;
}
if (response.Status == YubicoResponseStatus.ReplayedRequest)
{
//throw new YubicoValidationException("Replayed request, this otp & nonce combination has been seen before.");
return null;
}
return response;
}
}
}
throw new YubicoValidationException();
}