/// <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);
}
async private Task <string> UploadData(Stream imageStream, string fileName, Uri uploadUri, Dictionary <string, string> parameters, IProgress <UploadProgressChangedEventArgs> progress)
{
//string boundary = "FLICKR_MIME_" + DateTime.Now.ToString("yyyyMMddhhmmss", System.Globalization.DateTimeFormatInfo.InvariantInfo);
//string authHeader = FlickrResponder.OAuthCalculateAuthHeader(parameters);
//byte[] dataBuffer = CreateUploadData(imageStream, fileName, parameters, boundary);
//HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(uploadUri);
//req.Method = "POST";
//req.Timeout = HttpTimeout;
//req.ContentType = "multipart/form-data; boundary=" + boundary;
////req.Expect = String.Empty;
//if (!String.IsNullOrEmpty(authHeader))
//{
// req.Headers["Authorization"] = authHeader;
//}
//req.ContentLength = dataBuffer.Length;
//using (Stream reqStream = req.GetRequestStream())
//{
// int bufferSize = 32 * 1024;
// if (dataBuffer.Length / 100 > bufferSize) bufferSize = bufferSize * 2;
// int uploadedSoFar = 0;
// while (uploadedSoFar < dataBuffer.Length)
// {
// reqStream.Write(dataBuffer, uploadedSoFar, Math.Min(bufferSize, dataBuffer.Length - uploadedSoFar));
// uploadedSoFar += bufferSize;
// if (OnUploadProgress != null)
// {
// UploadProgressEventArgs args = new UploadProgressEventArgs(uploadedSoFar, dataBuffer.Length);
// OnUploadProgress(this, args);
// }
// }
// reqStream.Close();
//}
//HttpWebResponse res = (HttpWebResponse)req.GetResponse();
//StreamReader sr = new StreamReader(res.GetResponseStream());
//string s = sr.ReadToEnd();
//sr.Close();
//return s;
string boundary = "FLICKR_MIME_" + DateTime.Now.ToString("yyyyMMddhhmmss", System.Globalization.DateTimeFormatInfo.InvariantInfo);
string authHeader = FlickrResponder.OAuthCalculateAuthHeader(parameters);
byte[] dataBuffer = CreateUploadData(imageStream, fileName, parameters, boundary);
WebClient2 webClient = new WebClient2();
//webClient.Timeout = (int)TimeSpan.FromMinutes(10).TotalMilliseconds;
webClient.UploadProgressChanged += ((a, b) =>
{
if (progress != null)
{
progress.Report(b);
}
if (FlickrLogic.CancellationToken.IsCancellationRequested)
{
((WebClient2)a).CancelAsync();
}
});
webClient.ContentType = "multipart/form-data; boundary=" + boundary;
if (!String.IsNullOrEmpty(authHeader))
{
webClient.Headers["Authorization"] = authHeader;
}
webClient.ContentLength = dataBuffer.Length;
FlickrLogic.UploadEventList.Add(new Notice()
{
Type = NoticeType.Upload,
FullPath = fileName,
Note = "Ready to upload.",
});
byte[] responseArray = null;
try
{
responseArray = await webClient.UploadDataTaskAsync(uploadUri, dataBuffer);
}
catch (Exception ex)
{
responseArray = null;
}
string s = System.Text.Encoding.UTF8.GetString(responseArray);
return(s);
}
