[OTR-dev] Secure connections through a connect/disconnect cycle, OTR error messages

[Evan Schoenberg]

Two situations, and associated questions:

1)
- My friend and I are chatting via OTR
- I disconnect. I reconnect (same application session).  We can 
continue chatting as before.
- I disconnect and quit.
- I relaunch the application and connect.  I open a message window to 
my friend and send him a normal (unencrypted) message, not realizing he 
has remained connected and not hit stopped the OTR session.
- I receive:  ?OTR Error: You sent unencrypted data to <name>, who was 
expecting encrypted messages from you.

Question: Should a client disconnect all OTR sessions on an account 
when that account disconnects? And from my friend's perspective, should 
a client disconnect an OTR session when the target contact disconnects?

2)
- My friend decides to cancel the OTR session without telling me.
- I send a message
- I receive: ?OTR Error: You sent encrypted data to <name>, who wasn't 
expecting it.

Question: Is there a way in which the protocol could be expended to 
send some sort of otr-specific message to the other side letting it 
know that one person has asked to end the session?

-Evan
www.adiumx.com
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