"Expired timestamp" response I receive when I upload a big video file using API

sujit1779

Hi,

I was uploading a big video file, 25 MB using API and I received this response (error)

{
"STAT": "FAIL",
"METHOD": "SMUGMUG.IMAGES.UPLOAD",
"CODE": 30,
"MESSAGE": "EXPIRED TIMESTAMP"
}

upload took almost 30 mins and thats why I think timestamp might expire.

What should I do in cases where upload takes a long time, how can I get rid of this error.

Thanks.

devbobo

G'day,

For uploads, we validate against the time the connection was opened rather than the time that the upload finished for this very reason.

I can verify that we have lots of long video uploads with our LR plugin that would have expired if we used the time the upload finished.

Please double check that your date/time is correct. For the LR plugin, we use the 'Date' response header to compare against the sent oauth_timestamp to automatically adjust the future oauth_timestamps. It's a method that works well to prevent those sort of errors, you might find it useful as well.

Cheers,

David

sujit1779

devbobo wrote: »

G'day,

For uploads, we validate against the time the connection was opened rather than the time that the upload finished for this very reason.

I can verify that we have lots of long video uploads with our LR plugin that would have expired if we used the time the upload finished.

Please double check that your date/time is correct. For the LR plugin, we use the 'Date' response header to compare against the sent oauth_timestamp to automatically adjust the future oauth_timestamps. It's a method that works well to prevent those sort of errors, you might find it useful as well.

Cheers,

David

Thanks David for the reply. What I am doing in my code is that I am writing in parts (i.e chunks), so is it possible that when the last part gets written timestamp gets expired? Below is my code for your reference

Uri url = new Uri("http://upload.smugmug.com/");
string timeStamp = base2.GenerateTimeStamp();
string nonce = base2.GenerateNonce();
base2.includeVersion = true;
string str5 = base2.GenerateSignature(url, this.Smugmug_CONSUMER_KEY, this.Smugmug_CONSUMER_SECRET, this.SmugmugAuthToken, this.SmugmugAuthSecret, "POST", timeStamp, nonce, OAuth.OAuthBase.SignatureTypes.HMACSHA1, out str, out str2);
byte[] image = System.IO.File.ReadAllBytes(path);
string str6 = this.calculateMD5Hash(image);
int length = image.Length;
request = (HttpWebRequest)WebRequest.Create("http://upload.smugmug.com/");
request.ContentLength = length;
request.Method = "POST";
request.Headers.Add("X-Smug-Pretty", "true");

request.AllowWriteStreamBuffering = false;

request.ContentType = this.ContentType(Path.GetExtension(path));
request.Headers["Content-MD5"] = str6;
request.Headers.Add("Authorization", "OAuth oauth_consumer_key=\"" + this.Smugmug_CONSUMER_KEY + "\",oauth_token=\"" + this.SmugmugAuthToken + "\",oauth_signature_method=\"HMAC-SHA1\",oauth_signature=\"" + HttpUtility.UrlEncode(str5) + "\",oauth_timestamp=\"" + timeStamp + "\",oauth_nonce=\"" + nonce + "\", oauth_version=\"1.0\"");
request.Headers.Add("X-Smug-Version", "1.2.0");
request.Headers.Add("X-Smug-ResponseType", "JSON");
request.Headers.Add("X-Smug-AlbumID", albumId);
request.Headers.Add("X-Smug-FileName", Path.GetFileName(path));


requestStream = request.GetRequestStream();

int start = 0;
int chunkSize = 1024 * 100;
try
{
while (start <= length)
{
if (start + chunkSize > length)
requestStream.Write(image, start, length-start);
else
requestStream.Write(image, start,chunkSize);
start += chunkSize;
double percentage = ((start) / (length * 1.0) ) * 100 ;
Console.WriteLine("uploading: " + percentage.ToString() + "%");
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}

response = (HttpWebResponse)request.GetResponse();

reader = new StreamReader(response.GetResponseStream());
string strResult = reader.ReadToEnd().ToUpper();
Console.WriteLine(DateTime.Now.ToString() + "smugmug >> " + strResult);
if (strResult.Contains("OK") && strResult.Contains("STAT") && strResult.Contains("METHOD") && strResult.Contains("SMUGMUG.IMAGES.UPLOAD"))
flag = strResult;
else
flag = "";
Console.WriteLine(DateTime.Now.ToString() + "smugmug UPLOAD in seconds " + DateTime.Now.Subtract(dtS).TotalSeconds.ToString());

response = (HttpWebResponse)request.GetResponse();

reader = new StreamReader(response.GetResponseStream());
string strResult = reader.ReadToEnd().ToUpper();
Console.WriteLine(DateTime.Now.ToString() + "smugmug >> " + strResult);
if (strResult.Contains("OK") && strResult.Contains("STAT") && strResult.Contains("METHOD") && strResult.Contains("SMUGMUG.IMAGES.UPLOAD"))
flag = strResult;
else
flag = "";
Console.WriteLine(DateTime.Now.ToString() + "smugmug UPLOAD in seconds " + DateTime.Now.Subtract(dtS).TotalSeconds.ToString());

Thanks.