/// <summary>
/// Internal method to perform a web request.
/// Handles the case when API returns 403 forbidden due to expired token
/// </summary>
/// <param name="request">The request</param>
/// <returns>The response</returns>
private OAuth2ClientCredentialsGrantResponse PerformRequest(string resource, string[] urlData, Dictionary<string, string> bodyData, object bodyObject, string verb)
{
for (int i = 0; i < 2; i++)
{
HttpWebRequest request = MakeRequest(resource, urlData, bodyData, bodyObject, verb);
if (request == null && !string.IsNullOrEmpty(lastErrorAsString))
{
OAuth2ClientCredentialsGrantResponse resp = (OAuth2ClientCredentialsGrantResponse) JsonConvert.DeserializeObject(lastErrorAsString, typeof(OAuth2ClientCredentialsGrantResponse));
resp.response = null;
lastErrorAsString = null;
return resp;
}
HttpWebResponse response = null;
try
{
response = (HttpWebResponse)request.GetResponse();
OAuth2ClientCredentialsGrantResponse toRet = new OAuth2ClientCredentialsGrantResponse();
toRet.errorCode = 0;
toRet.errorType = 0;
toRet.errorMessage = null;
toRet.response = response;
return toRet;
}
catch (WebException ex)
{
if (ex.Response != null)
{
StreamReader sr = new StreamReader(ex.Response.GetResponseStream());
lastErrorAsString = sr.ReadToEnd();
OAuth2ClientCredentialsGrantResponse resp = (OAuth2ClientCredentialsGrantResponse)JsonConvert.DeserializeObject(lastErrorAsString, typeof(OAuth2ClientCredentialsGrantResponse));
if (resp.errorCode == (int)OAuth2ClientCredentialsGrantError.InvalidAccessToken)
{
//We need to renew the token
accessToken = null;
lastErrorAsString = null;
}
else
{
resp.response = response;
return resp;
}
}
else
{
OAuth2ClientCredentialsGrantResponse resp = new OAuth2ClientCredentialsGrantResponse();
resp.errorCode = (int) OAuth2ClientError.ErrorGettingResponseFromServer;
resp.errorType = (int)OAuth2ClientCredentialsGrant.OAuth2ErrorType.ApiClientError;
resp.response = null;
return resp;
}
}
}
return null;
}
/// <summary>
/// Invalidates the current authentication token if it exists
/// </summary>
/// <returns></returns>
public OAuth2ClientCredentialsGrantResponse InvalidateToken()
{
if (string.IsNullOrEmpty(accessToken))
{
OAuth2ClientCredentialsGrantResponse response = new OAuth2ClientCredentialsGrantResponse();
response.errorCode = (int) OAuth2ClientError.TokenDoesNotExist;
response.errorType = (int) OAuth2ErrorType.ApiClientError;
response.errorMessage = "No token to delete";
response.response = null;
return response;
}
//We need to invalidate the token
HttpWebResponse lastResponse = null;
string url = MakeUrl("invalidate_token", null);
HttpWebRequest request = MakeAuthorizedRequest(url, true);
try
{
lastResponse = (HttpWebResponse)request.GetResponse();
if (lastResponse.StatusCode == HttpStatusCode.OK)
{
accessToken = null;
OAuth2ClientCredentialsGrantResponse response = new OAuth2ClientCredentialsGrantResponse();
response.errorCode = 0;
response.errorType = 0;
response.errorMessage = null;
response.response = lastResponse;
return response;
}
else
{
OAuth2ClientCredentialsGrantResponse response = new OAuth2ClientCredentialsGrantResponse();
response.errorCode = (int) OAuth2ClientError.InvalidateTokenFailed;
response.errorType = (int) OAuth2ErrorType.ApiClientError;
response.errorMessage = "Could not invalidate token";
response.response = lastResponse;
return response;
}
}
catch (WebException ex)
{
if (ex.Response != null)
{
StreamReader sr = new StreamReader(ex.Response.GetResponseStream());
string err = sr.ReadToEnd();
OAuth2ClientCredentialsGrantResponse response = (OAuth2ClientCredentialsGrantResponse)JsonConvert.DeserializeObject(err, typeof(OAuth2ClientCredentialsGrantResponse));
response.response = null;
return response;
}
else
{
OAuth2ClientCredentialsGrantResponse resp = new OAuth2ClientCredentialsGrantResponse();
resp.errorCode = (int)OAuth2ClientError.ErrorGettingResponseFromServer;
resp.errorType = (int)OAuth2ClientCredentialsGrant.OAuth2ErrorType.ApiClientError;
resp.response = null;
return resp;
}
}
}
