/// <summary>
/// Get an <see cref="OAuthRequestToken"/> for the given callback URL.
/// </summary>
/// <remarks>Specify 'oob' as the callback for no callback to be performed.</remarks>
/// <param name="callback">The callback Uri, or 'oob' if no callback is to be performed.</param>
/// <returns></returns>
public OAuthRequestToken OAuthGetRequestToken(string callback)
{
string url = "http://www.flickr.com/services/oauth/request_token";
Dictionary <string, string> parameters = OAuthGetBasicParameters(false);
parameters.Add("oauth_callback", callback);
string sig = OAuthCalculateSignature("POST", url, parameters, null);
parameters.Add("oauth_signature", sig);
string response = FlickrResponder.GetDataResponse(this, url, parameters);;
return(OAuthRequestToken.ParseResponse(response));
}
private T GetResponse <T>(Dictionary <string, string> parameters) where T : IFlickrParsable, new()
{
// Flow for GetResponse.
// 2. Calculate Cache URL.
// 3. Check Cache for URL.
// 4. Get Response if not in cache.
// 5. Write Cache.
// 6. Parse Response.
OAuthGetBasicParameters(parameters);
string responseXml = FlickrResponder.GetDataResponse(this, BaseUri.AbsoluteUri, parameters);
var reader = new XmlTextReader(new StringReader(responseXml))
{
WhitespaceHandling = WhitespaceHandling.None
};
if (!reader.ReadToDescendant("rsp"))
{
throw new XmlException("Unable to find response element 'rsp' in Flickr response");
}
while (reader.MoveToNextAttribute())
{
if (reader.LocalName == "stat" && reader.Value == "fail")
{
//TODO:
//throw ExceptionHandler.CreateResponseException(reader);
}
}
reader.MoveToElement();
reader.Read();
var item = new T();
item.Load(reader);
return(item);
}
/// <summary>
/// For a given request token and verifier string return an access token.
/// </summary>
/// <param name="requestToken"></param>
/// <param name="requestTokenSecret"></param>
/// <param name="verifier"></param>
/// <returns></returns>
public OAuthAccessToken OAuthGetAccessToken(string requestToken, string requestTokenSecret, string verifier)
{
string url = "http://www.flickr.com/services/oauth/access_token";
Dictionary <string, string> parameters = OAuthGetBasicParameters(false);
parameters.Add("oauth_verifier", verifier);
parameters.Add("oauth_token", requestToken);
string sig = OAuthCalculateSignature("POST", url, parameters, requestTokenSecret);
parameters.Add("oauth_signature", sig);
string response = FlickrResponder.GetDataResponse(this, url, parameters);
var accessToken = FlickrNet.OAuthAccessToken.ParseResponse(response);
// Set current access token.
OAuthAccessToken = accessToken.Token;
OAuthAccessTokenSecret = accessToken.TokenSecret;
return(accessToken);
}
