Websocket chat example

This is extension of the actix chat example

Added features:

Server

Chat server listens for incoming tcp connections. Server can access several types of message:

/list - list all available rooms
/join name - join room, if room does not exist, create new one
/name name - set session name
some message - just string, send message to all peers in same room
client has to send heartbeat Ping messages, if server does not receive a heartbeat message for 10 seconds connection gets dropped

To start server run

cd websockets/chat-tcp
cargo run --bin websocket-tcp-server`

If the current directory is not correct, the server will look for index.html in the wrong place.

Client connects to server. Reads input from stdin and sends to server.

To run client use command: cargo run --bin websocket-tcp-client