probably this is not only a Seam related question, but it is very interesting and Seam is really powerful, so maybe it can even provide a solution to the following scenario:
I have a Seam powered webapp running on a server A. Second, there is a FTP server B where some file are stored a user can download via my webapp on server A (after a login/registration).
Now how can I transfer the file from FTP server B directly to the client, without having it to download to server A first (the intention is of course that I want to keep the download traffic away from server A).
The FTP authentification is handled by my webapp on server A, so simply sending a redirect to ftp://serverB/file.txt is not an option.