// A OAuth handler when accessToken and accessTokenSecrets are known
private static HttpMessageHandler OAuthHandlerWithExistingToken(String requestTokenURL,
String authorizationTokenURL,
String accessTokenURL,
String consumerKey,
String consumerSecret,
String accessToken,
String accessTokenSecret)
{
ServiceProviderDescription serviceDescription = new ServiceProviderDescription();
serviceDescription.AccessTokenEndpoint = new MessageReceivingEndpoint(new Uri(accessTokenURL), HttpDeliveryMethods.PostRequest);
serviceDescription.ProtocolVersion = ProtocolVersion.V10a;
serviceDescription.RequestTokenEndpoint = new MessageReceivingEndpoint(new Uri(requestTokenURL), HttpDeliveryMethods.PostRequest);
serviceDescription.TamperProtectionElements = new ITamperProtectionChannelBindingElement[] { new HmacSha1SigningBindingElement() };
serviceDescription.UserAuthorizationEndpoint = new MessageReceivingEndpoint(new Uri(authorizationTokenURL), HttpDeliveryMethods.PostRequest);
TokenManager tokenManager = new TokenManager(consumerKey, consumerSecret);
// Here we add the known token info
tokenManager.AddKnownAccessTokens(accessToken, accessTokenSecret);
WebConsumer consumer = new WebConsumer(serviceDescription, tokenManager);
DesktopConsumer desktopConsumer = new DesktopConsumer(serviceDescription, tokenManager);
return(consumer.CreateAuthorizingHandler(accessToken, CreateSSLHandler()));
}
