Upload/Download file to/from a document library in a SharePoint online site

Question

Hi,
I am referring to the below blog for Upload/Download file to/from a document library in a SharePoint online site.
http://blogs.msdn.com/b/rohitpuri/archive/2007/04/10/upload-download-file-to-from-wss-document-library-using-dav.aspx?CommentPosted=true#commentmessage
I would like to know if this is feasible with a SharePoint online site.
If feasible, how can I resolve the below exception I am getting while using the code.
“The remote server returned an error: (403) Forbidden”.
Thanks,
Thanan

Answer 1

Hi,
Actually what I am trying to achieve is the two things.
1) By using only the user's name, need to upload/download from/to the document library of SharePoint online site using the CSOM. (i.e., achieving Single Sign On / Windows Authentication)
2) I need to achieve the above only by passing the document URL; not by hardcording/ configuring the document library name in the windows application.
Can anyone pls help on this now?
[Below code is working fine. But need to arrive the solution whereas the above 2 conditions are not violated.
using (var clientContext
= new ClientContext("https://yoursiteurl.com"))
           string passWd
= "password";
           SecureString securePassWd
= new SecureString();
           foreach
(var c in passWd.ToCharArray())
                securePassWd.AppendChar(c);
            clientContext.Credentials
= new SharePointOnlineCredentials("username", securePassWd);
           using
(var fs =
new FileStream("fileName",
FileMode.Open))
var fi =
new FileInfo("fileName");
var list = clientContext.Web.Lists.GetByTitle("Doc Library");
               clientContext.Load(list.RootFolder);
               clientContext.ExecuteQuery();
var fileUrl = String.Format("{0}/{1}", list.RootFolder.ServerRelativeUrl,
fi.Name);
Microsoft.SharePoint.Client.File.SaveBinaryDirect(clientContext, fileUrl,
fs, true);
Thanks,
Thanann