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UploadAttachment + OAuth

Hi,
I'm trying to upload a simple text file using OAuth and UploadAttachment method, but I keep getting a 500 response.
I have found a single discussion regarding this issue here and followed the example without success.

Here's my C# code:

CODE
string url = @"http://mail.yahooapis.com/ya/upload";

            HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);
            OAuthUtils utils = new OAuthUtils();

            AuthorizeHeader hdr = utils.GetUserInfoAuthorizationHeader(url, @"yahooapis.com", OAuthConsumerKey, OAuthConsumerSecret, OAuthAccessToken, OAuthTokenSecret, SignatureMethod.HMACSHA1, @"POST");
            byte[] filedata = File.ReadAllBytes(path);
            string base64filecontent = Convert.ToBase64String(filedata);

            req.Headers.Add(@"Authorization", hdr.ToString());
            req.Method = @"POST";

            string boundary = @"---------------abcdefghij";
            req.ContentType = string.Format("multipart/form-data;boundary={0}", boundary);
            
            StringBuilder content = new System.Text.StringBuilder();
            content.AppendLine(boundary);
            content.AppendLine("Content-Disposition: form-data; name=\"_charset_\"");
            content.AppendLine();
            content.AppendLine(@"utf-8");
            content.AppendLine(boundary);
            content.AppendLine(string.Format("Content-Disposition:form-data; name=\"uploadfile\"; filename=\"{0}\"", path));
            content.AppendLine(@"Content-Type: text/plain");
            content.AppendLine();

            content.AppendLine(base64filecontent);

            content.AppendLine(boundary+@"--");

            byte[] postdata = System.Text.Encoding.UTF8.GetBytes(content.ToString());
            req.ContentLength = postdata.Length;

            Stream s = req.GetRequestStream();
            s.Write(postdata, 0, postdata.Length);

            s.Flush();
            s.Close();
            HttpWebResponse res = (HttpWebResponse)req.GetResponse();


My authorization header seems to be fine (using same header for other methods without problems).
Any suggestions would be appreciated :-)
MK

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6 Replies
  • Hi,

    Can you please paste the dump of the request /response? Thanks

    --R

    QUOTE (Robbie Cohen @ Jan 4 2011, 10:26 PM) <{POST_SNAPBACK}>
    Hi,
    I'm trying to upload a simple text file using OAuth and UploadAttachment method, but I keep getting a 500 response.
    I have found a single discussion regarding this issue here and followed the example without success.

    Here's my C# code:

    CODE
    string url = @"http://mail.yahooapis.com/ya/upload";

                HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);
                OAuthUtils utils = new OAuthUtils();

                AuthorizeHeader hdr = utils.GetUserInfoAuthorizationHeader(url, @"yahooapis.com", OAuthConsumerKey, OAuthConsumerSecret, OAuthAccessToken, OAuthTokenSecret, SignatureMethod.HMACSHA1, @"POST");
                byte[] filedata = File.ReadAllBytes(path);
                string base64filecontent = Convert.ToBase64String(filedata);

                req.Headers.Add(@"Authorization", hdr.ToString());
                req.Method = @"POST";

                string boundary = @"---------------abcdefghij";
                req.ContentType = string.Format("multipart/form-data;boundary={0}", boundary);
                
                StringBuilder content = new System.Text.StringBuilder();
                content.AppendLine(boundary);
                content.AppendLine("Content-Disposition: form-data; name=\"_charset_\"");
                content.AppendLine();
                content.AppendLine(@"utf-8");
                content.AppendLine(boundary);
                content.AppendLine(string.Format("Content-Disposition:form-data; name=\"uploadfile\"; filename=\"{0}\"", path));
                content.AppendLine(@"Content-Type: text/plain");
                content.AppendLine();

                content.AppendLine(base64filecontent);

                content.AppendLine(boundary+@"--");

                byte[] postdata = System.Text.Encoding.UTF8.GetBytes(content.ToString());
                req.ContentLength = postdata.Length;

                Stream s = req.GetRequestStream();
                s.Write(postdata, 0, postdata.Length);

                s.Flush();
                s.Close();
                HttpWebResponse res = (HttpWebResponse)req.GetResponse();


    My authorization header seems to be fine (using same header for other methods without problems).
    Any suggestions would be appreciated :-)
    MK
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    0
    • Aug 28, 2012
    Hello guys, could any one of you help me with how i download attachment.
    please can you post a complete http request with url, query strings and authorization header....
    if c# code is exists will be very good.


    please help ASAP
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    • Sep 2, 2012
    Hello,,,, anyone did work on UploadAttachment with succeed ???
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  • Can you please explain the problem you are facing?
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    • Sep 5, 2012
    First of all, Thank you for reply...the scenario is: after struggling with download attachment endpoit, i got it work. :))), now i am working on upload attachment endpoint.
    what i have done is:
    1. i generate a web request object for this url: http://mail.yahooapis.com/ya/upload?uploadfile=" + file.FileName + "&output=json; with authorization header, same as download attachment web request.
    2. i convert the file content to array of bytes, and i save the file in my project local path.
    3. set the method to POST.
    4. and set the Content-Type in the header to : multipart/form-data.
    5. convert to the array of bytes to base64.
    6. write the content to a request stream
    ..and the error is FileUploadSizeError.
    i dont know why...

    i have tried many senarios,
    --sending full path of file in the questy string fileupload
    --sending with request stream and without writing into a stream.

    please help.

    this is my code: 

    /***Upload Attachment**/
     string dt = DateTime.Now.ToString("ddMMyyyyHHmmss");
                        file.SaveAs(Server.MapPath("/Uploaded/yahoo/"+dt+"-"+file.FileName));
                        
                        MemoryStream ms = new MemoryStream();
                        file.InputStream.CopyTo(ms);
                        byte[] datacontent = ms.ToArray();
                        ms.Dispose();
                        string base64filecontent = Convert.ToBase64String(datacontent);
                        HttpWebResponse response;
                        Stream stream;
                        Uri uri = new Uri("http://mail.yahooapis.com/ya/upload?uploadfile=" + file.FileName + "&output=json");
                        string oauth_token = yhModel.OAuth_AccessToken;
                        string oauth_secret = yhModel.OAuth_TokenSecret;

                        HttpWebRequest webrequest = yhModel.GetWebRequest(oauth_token, oauth_secret, uri, "POST");
                        webrequest.Method = "POST";
                        webrequest.ContentType = "multipart/form-data";
                        StringBuilder content = new System.Text.StringBuilder();
                        content.AppendLine(base64filecontent);
                        byte[] postdata = System.Text.Encoding.UTF8.GetBytes(content.ToString());
                        webrequest.ContentLength = postdata.Length;
                        Stream s = webrequest.GetRequestStream();
                        s.Write(postdata, 0, postdata.Length);
                        s.Flush();
                        s.Close();
                        HttpWebResponse res = (HttpWebResponse)webrequest.GetResponse();

    /**BuildWebRequest****/

     DataTable dtResult = MyIBoxModel.GetAPP_AccountCredentials(3);
                HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(uri);
                oAuthBase oauth = new oAuthBase();
                string nonce = oauth.GenerateNonce();
                string timestamp = oauth.GenerateTimeStamp();
                string consumerKey = dtResult.Rows[0]["APP_KEY"].ToString();
                string consumerSecret = dtResult.Rows[0]["APP_SECRET"].ToString();
                string p = "", h = "";
                string signature = oauth.GenerateSignature(uri, consumerKey, consumerSecret, oauth_token, oauth_secret, strMethod, timestamp, nonce,out p,out h);
                webRequest.Headers.Add("Authorization", "OAuth oauth_nonce=\"" + nonce + "\"" +
                    ", oauth_timestamp=\""+timestamp+"\""+
                    ", oauth_version=\"1.0"+"\""+
                    ", oauth_signature_method=\"HMAC-SHA1"+"\""+
                    ", oauth_consumer_key=\""+consumerKey+"\""+
                    ", oauth_token=\""+oauth_token+"\""+
                    ", oauth_signature=\""+signature+"\"");
                return webRequest;..
    ...
    can you write pseudo code for upload attachment...
    url, query strings, headers, authorization, should i send a request stream of file content....

    please....:(

    Thanx alot
    QUOTE(ram @ 4 Sep 2012 3:43 PM)
    Can you please explain the problem you are facing?
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    • Sep 10, 2012
    Hello,
    Did this code works for you???..... i am struggling please if you have found solution for your issue, please help me......
    help


    QUOTE(Robbie Cohen @ 4 Jan 2011 10:26 PM)
    Hi,
    I'm trying to upload a simple text file using OAuth and UploadAttachment method, but I keep getting a 500 response.
    I have found a single discussion regarding this issue here and followed the example without success.

    Here's my C# code:

    CODE
    string url = @"http://mail.yahooapis.com/ya/upload";

          HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);
          OAuthUtils utils = new OAuthUtils();

          AuthorizeHeader hdr = utils.GetUserInfoAuthorizationHeader(url, @"yahooapis.com", OAuthConsumerKey, OAuthConsumerSecret, OAuthAccessToken, OAuthTokenSecret, SignatureMethod.HMACSHA1, @"POST");
          byte[] filedata = File.ReadAllBytes(path);
          string base64filecontent = Convert.ToBase64String(filedata);

          req.Headers.Add(@"Authorization", hdr.ToString());
          req.Method = @"POST";

          string boundary = @"---------------abcdefghij";
          req.ContentType = string.Format("multipart/form-data;boundary={0}", boundary);
          
          StringBuilder content = new System.Text.StringBuilder();
          content.AppendLine(boundary);
          content.AppendLine("Content-Disposition: form-data; name=\"_charset_\"");
          content.AppendLine();
          content.AppendLine(@"utf-8");
          content.AppendLine(boundary);
          content.AppendLine(string.Format("Content-Disposition:form-data; name=\"uploadfile\"; filename=\"{0}\"", path));
          content.AppendLine(@"Content-Type: text/plain");
          content.AppendLine();

          content.AppendLine(base64filecontent);

          content.AppendLine(boundary+@"--");

          byte[] postdata = System.Text.Encoding.UTF8.GetBytes(content.ToString());
          req.ContentLength = postdata.Length;

          Stream s = req.GetRequestStream();
          s.Write(postdata, 0, postdata.Length);

          s.Flush();
          s.Close();
          HttpWebResponse res = (HttpWebResponse)req.GetResponse();


    My authorization header seems to be fine (using same header for other methods without problems).
    Any suggestions would be appreciated :-)
    MK
    Report Abuse
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