private static void GetDataResponseOAuthAsync(Flickr flickr, string baseUrl, Dictionary <string, string> parameters, Action <FlickrResult <string> > callback)
{
const string method = "";
// Remove api key if it exists.
if (parameters.ContainsKey("api_key"))
{
parameters.Remove("api_key");
}
if (parameters.ContainsKey("api_sig"))
{
parameters.Remove("api_sig");
}
// If OAuth Access Token is set then add token and generate signature.
if (!string.IsNullOrEmpty(flickr.OAuthAccessToken) && !parameters.ContainsKey("oauth_token"))
{
parameters.Add("oauth_token", flickr.OAuthAccessToken);
}
if (!string.IsNullOrEmpty(flickr.OAuthAccessTokenSecret) && !parameters.ContainsKey("oauth_signature"))
{
string sig = flickr.OAuthCalculateSignature(method, baseUrl, parameters, flickr.OAuthAccessTokenSecret);
parameters.Add("oauth_signature", sig);
}
// Calculate post data, content header and auth header
string data = OAuthCalculatePostData(parameters);
string authHeader = OAuthCalculateAuthHeader(parameters);
// Download data.
try
{
DownloadDataAsync(method, baseUrl, data, PostContentType, authHeader, callback);
}
catch (WebException ex)
{
var response = ex.Response as HttpWebResponse;
if (response == null)
{
throw;
}
if (response.StatusCode != HttpStatusCode.BadRequest && response.StatusCode != HttpStatusCode.Unauthorized)
{
throw;
}
using (var responseReader = new StreamReader(response.GetResponseStream()))
{
string responseData = responseReader.ReadToEnd();
throw new OAuthException(responseData, ex);
}
}
}
public static void GetDataResponseAsync(Flickr flickr, string baseUrl, Dictionary <string, string> parameters, string url, Action <FlickrResult <string> > callback)
{
bool oAuth = parameters.ContainsKey("oauth_consumer_key");
if (oAuth)
{
GetDataResponseOAuthAsync(flickr, baseUrl, parameters, url, callback);
}
else
{
GetDataResponseNormalAsync(flickr, baseUrl, parameters, callback);
}
}