Controlling a computercraft turtle remotely

redis = "http://redis.example.com" 
queue = "sshbot" .. os.getComputerID()
return_queue = queue .. "_return"
print("Remote webdis queues on icyego: " .. queue .. " and " .. return_queue)
print("Receiving remote commands.")

function exec(str)
  print("Running: " .. str)
  f = fs.open("tmp", "w")
  f.write(str)
  f.close()
  p = loadfile("tmp")
 status, err = pcall(function () p = loadfile("tmp"); return p() end)
  if status then
    status, ret = pcall(function() return textutils.serialize(err) end)
    if status then
      result = ret
    else
      result = ""
    end
  else
    result = "Error: " .. err
  end
  print(result)
  return result
end

print("Now receiving remote commands.")
while true do
  handle = http.get(redis .. "/BRPOP/" .. queue .. "/5.txt")
  if (handle and handle.getResponseCode() == 200) then 
    str = handle.readAll()
    handle.close()
    str = string.sub(str, string.len(queue) + 1)
    result = exec(str)
    if string.find(result, "Error: ") then
      result2 = exec("return " .. str)
      if string.find(result2, "Error: ") then a=0 else result=result2 end
    end
    http.post(redis, "LPUSH/" .. return_queue .. "/" .. result)
  end
end

#!/bin/bash
function send() {
  curl -s -X POST -d "LPUSH/sshbot${1}/${2}" "http://redis.example.com" >/dev/null

}

function get() {
  curl -s -X GET "http://redis.example.com/BRPOP/sshbot${1}_return/20.json" | jq .BRPOP[1]
}

if [ $# -ne 1 ]; then
  echo "Usage: rlwrap ./sshbot <COMPUTER_ID>"
  exit 1
fi
ID=$1

while read LINE; do
  send ${ID} "$LINE"
  get ${ID}
done