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|
Status of a tox friend netcrypto session.
-----------------------------------------
data ToxProgress
= AwaitingDHTKey -- ^ Waiting to receive their DHT key.
| AcquiringIPAddress -- ^ Searching DHT to obtain their node's IP & port.
| AcquiringCookie -- ^ Attempting to obtain a cookie.
| AwaitingHandshake -- ^ Waiting to receive a handshake.
| AwaitingSessionPacket -- ^ Connection is "accepted" but not yet "confirmed".
deriving (Eq,Ord,Enum,Show)
Information about contact toxid and events that provide it.
----------------------------------------------------------
SockAddr
receive packet with dhtkey associated with toxid
receive query result with dhtkey associated with toxid
receive netcrypto session packet from toxid
DHTKey
receive dhtpk over DataToRoute transport.
receive dht message from SockAddr
receive dhtpk via dht-request
Recurring tasks associated with obtaining a connection.
-------------------------------------------------------
while (account is active):
tox4id:announce{toxid}
tox6id:
while (policy=TryingToConnect and friend session is not established)
search{toxid} contact, send my dhtkey to results
(AwaitingDHTKey .. AwaitingSessionPacket)
while (dhtkey is fresh but sockaddr is stale)
search{node} dhtkey
(AcquiringIPAddress..)
while (dhtkey and sockaddr are fresh)
(AcquiringCookie)
getCookie { on timeout, consider sockaddr stale, set sockaddr to Nothing)
(AwaitingHandshake)
send handshake
On inbound
----------
Handshake recieved!
(AwaitingSessionPacket)
Interesting tox repositories
--------------------------------------------
https://github.com/TokTok/spec
https://github.com/TokTok/hs-toxcore
https://github.com/iphydf/hstox
https://github.com/TokTok/c-toxcore
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