socket_cli.coffee

# yon can connect to server with the following command
# socat -,raw,echo=0,escape=0x0f UNIX-CONNECT:/tmp/echo.socket 

net = require('net')
readline = require('readline')

create_cli_session = (sr)->
  rl = readline.createInterface sr, sr
  rl.setPrompt('OHAI> ')
  rl.prompt()

  rl.on 'line', (line) ->
    switch line.trim()
      when 'taipei'
        sr.write 'tainan\r\n'
      when 'hello'
        sr.write 'world\r\n'
      when 'close'
        rl.close()
      else
        sr.write ('Say what? I might have heard `' + line.trim() + '`')
    rl.prompt()
  rl.on 'close', ->
    console.log('client quit')

server = net.createServer (c)->
  console.log('server connected')
  c.on 'end', ->
    console.log 'server disconnected'
  c.isTTY = true
  create_cli_session c

server.listen '/tmp/echo.socket', ->
  console.log('server bound')