This reminds me of a node.js-based utility I wrote awhile back called filebounce[1], except filebounce streams a file over HTTP/HTTPS and does not store the file on an intermediary server. It also supports tailored curl and GUI browser-based interfaces. I use it as a simple way of copying a file without needing ssh, ftp, samba, etc.

[1] https://github.com/mscdex/filebounce