term_x, term_y = term.getSize()
id = os.computerID()
version = "v 1.0"
modemSide = ""
sides = {"top", "bottom", "left", "right", "front", "back"}
privateKey = 30679223
modN = 43888321
rootPass = "" --change this!!!
PackageIdentifier = "_GOO.pack"

function findModem()
  for i = 1, #sides, 1 do
    if (peripheral.getType(sides[i]) == "modem") then
      modemSide = sides[i]
    end
  end
  if (modemSide == "") then return false end
  return true
end

function isValidPackage(s)
  head = string.sub(s, 1, 1+string.len(PackageIdentifier))
  if (head == PackageIdentifier) then return true end
  return false
end

------------------------------------

term.clear()
term.setCursorPos(1,1)
print("Google Server id: "..id)
if (findModem() == false) then print("No modem found!") os.shutdown() end
print("Found modem at side: "..modemSide);
rednet.open(modemSide)
print("Rednet opened")

while true do
  _event, _data, _senderId, _distance = os.pullEvent("rednet_message")
  if (isValidPackage(_data)) then
    print("recieved Valid package")
    --parsePackage(_data, _senderId, _distance)
  end

end