CC Doorlock for selected players

-- Made by Frekvens1, doorlock for selected players

-- pastebin get LU7Xezn8 startup

local AllowedUsers = {"Frekvens1","abaxcool","XEpicPirateX"}

local MaxTries = 4
local CurrentAttempt = 0

local Username = ""

local Status = "Offline"

local monitor = peripheral.wrap("left")
local redstoneOutput = "top"

function DoJob()
   if fs.exists("Online") then
       file = io.open("Online", "r")
       Status = file:read()
       file:close()
    end

        term.redirect(monitor)
    if Status == "Online" then
       print("Open!")
       redstone.setOutput(redstoneOutput, false)
    else
       print("Closed!")
       redstone.setOutput(redstoneOutput, true)
    end
end

function GetUsername()
event, Username = os.pullEvent("player")
CurrentAttempt = 0
checkUsers()
GetUsername()
end

function checkUsers()
   if Username == AllowedUsers[CurrentAttempt] then
   if fs.exists("Online") then
          file = io.open("Online", "r")
          Status = file:read()
          file:close()
          if Status == "Online" then
             file = io.open("Online", "w")
                     file:write("Offline")
                     file:close()
          else
             file = io.open("Online", "w")
                     file:write("Online")
                    file:close()
          end
       else
          file = io.open("Online", "w")
              file:write("Offline")
              file:close()
    end
      os.reboot()
   else
      if CurrentAttempt == MaxTries then
      else
      Looper()
      end
   end
end

function Looper()
   CurrentAttempt = CurrentAttempt + 1
   checkUsers()
end

DoJob()
term.restore()
GetUsername()