25 lines
1.5 KiB
Plaintext
25 lines
1.5 KiB
Plaintext
The chat.lua Protocol
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- 20kdc, 2017
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The chat.lua protocol is a simple chat protocol built on Copper with the reliability layer in use.
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All packets/messages referred to here are Reliability Layer reliable packets.
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Note that this protocol, assuming no more than one connection between two peers has to be maintained at a time,
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should be extremely versatile.
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However, IRC on TCP Emulation Over Copper should be the go-to standard when that becomes a thing.
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The server will receive messages on port 2 and send them back out on port 3.
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All messages received by the client from the server on port 3 should be displayed as-is.
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The client must ignore messages received on port 2, due to the possibility of a client and server on the same machine.
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The client should, every so often, send a blank string, to confirm the client is alive and wants to hear from the server.
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When sending a message, the client should send just the message text, with no annotation,
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and should not display the message locally.
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The message, with modifications applied, will be returned by the server if all goes well.
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The server should keep a 'subscription pool' of all clients that have sent blank strings "recently".
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The server can implement the subscription pool - and it's definition of "recently" - however it likes,
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though the standard should be to wait until at least 16 seconds after the last packet from the client.
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When the server sends a message, it sends an individual packet to each subscriber.
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