Websocket server

websocket_server.rb

STDOUT.sync=true

require 'rubygems'
require 'em-websocket'

EM.run {
  EM::WebSocket.run(:host => "0.0.0.0",:port => 8080) do |ws|
    ws.onopen { |handshake|
      puts "WebSocket connection open"
      ws.send "Connected"
    }

    ws.onclose { puts "Connection closed" }

    ws.onmessage { |cmd|
       begin
         IO.popen( cmd ) do |stdin, stdout, pid|
           begin
             stdin.each { |line| 
               ws.send "Result: #{line}"
             }
           end
         end
      end
    }
end
}