[Telepathy] Using Telepathy & Vino with private proxy server and more...

[John O'Brien]

As mentioned in #telepathy, I am working on Ubuntu One (U1) which is going
to
provide a set of cloud based services to Ubuntu Users. Some of those
services will involve
private proxy servers for Screen Sharing (and perhaps more)

I would really like to use Telepathy in this project but, I am unclear as to
what it will involve. I understand there are already changes made to
vino/vinagre to
support these over stream tubes which is awesome. In addition we would
like to do is provide our users access to private proxy servers if we can't
establish a p2p connection when a Tube offer is made. (This is where I am
unsure how
this would work)

The rest of this email is just some information about what we would like to
do, but if you have feedback
I would appreciate it.

With screen sharing, there are also other things we think we can do to
improve performance:
* Find ways to increase success of P2P connections using Tubes (libnice
changes perhaps)
* Decrease bandwidth usage by adjusting options in vino (there's a vino bug
for this)
* Smart Proxy/Message Accelerator between vino/vinagre? (Idea based on
http://www-cse.ucsd.edu/~cbtaylor/psu.pdf<http://www-cse.ucsd.edu/%7Ecbtaylor/psu.pdf>
)
* Proxy between server/viewer for Compression like NX? (We can't change RFB,
but we could create a special client/server proxy)

Here are some additional possibilities we are considering for
telepathy/empathy:
* Connecting our users to our XMPP server
* Contacts Presence (Empathy, custom client)
* Chat (Empathy)

XMPP Extentions and Applications
* U1 notifications Server ---> User (via Empathy or custom client)
    * Bob has shared a folder with you
    * Bob wants to share his contact list with you...
    * Bob wants to do this wizbang U1 thing with you (etc..)

If you have any questions feel free to contact me (jdobrien on
freenode)...I'm
usually in #ubuntuone or #telepathy.

Thank you in advance for your help,
John O'Brien
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