public static Uri BuildRequestUri(this AccessToken accessToken, VerificationCode verificationCode, BaseSpaceClientSettings settings)
{
NameValueCollection queryPairs =
new NameValueCollection
{
{"client_id", settings.AppClientId},
{"client_secret", settings.AppClientSecret},
{"code", verificationCode.DeviceCode},
{"grant_type", "device"}
};
return new Uri(string.Format("{0}/{1}/oauthv2/token?{2}", settings.BaseSpaceApiUrl, settings.Version, RequestUrlExtensions.ToQueryString(queryPairs)));
}
private static VerificationCode FetchVerificationCode(BaseSpaceClientSettings settings)
{
VerificationCode verificationCode = new VerificationCode();
var verificationUri = verificationCode.BuildRequestUri(settings);
if ((verificationUri == null) || string.IsNullOrEmpty(verificationUri.AbsoluteUri))
return null; // TODO: throw exception
string jsonResponse = HttpPost(verificationUri, string.Empty);
verificationCode.FromJson(jsonResponse);
return verificationCode;
}
private static AccessToken FetchAccessToken(VerificationCode verificationCode, BaseSpaceClientSettings settings)
{
AccessToken accessToken = null;
Int32 interval = verificationCode.Interval * 1000;
// TODO: use the new "await" instead of looping
// TODO: we should have a hard stop at some useful limit of time
while (accessToken == null)
{
Thread.Sleep(interval);
try
{
// TODO: wrap in try-catch with System.Net.WebException handler
Uri authUri = accessToken.BuildRequestUri(verificationCode, settings);
string jsonResponse = HttpPost(authUri, string.Empty);
//string response = HttpPost(authVerificationCode.VerificationWithCodeUri.AbsoluteUri, string.Empty);
// TODO: convert to using 200 response
if ((!string.IsNullOrEmpty(jsonResponse) && !jsonResponse.Contains("DOCTYPE")))
{
accessToken = new AccessToken();
accessToken.FromJson(jsonResponse);
//// TODO: add sensitivity to return value, e.g., 404
//switch(response.getClientResponseStatus())
//{
// case BAD_REQUEST:
// AccessToken token = mapper.readValue(response.getEntity(string.class), AccessToken.class);
// if (token.getError().equalsIgnoreCase(ACCESS_DENIED))
// {
// throw new AccessDeniedException();
// }
// break;
// case OK:
// token = mapper.readValue(response.getEntity(string.class), AccessToken.class);
// accessToken = token.getAccessToken();
//}
}
}
catch (System.Net.WebException)
{
// ignore these exceptions
continue;
//throw;
}
}
return accessToken;
}