ComputerCraft door

local sleepTime = 2.5
local debug = "0000" -- This can be changed to anything you want. If you are going to be using this program to protect a ComputerCraft computer, use this code and don't worry about making the rest of the files.
local oldPull = os.pullEvent
s = fs.open(".doorSide", "r") --.doorSide, .passWord and .userName hidden text files need to be made for this program to work for doors. And I hope what should be in these files is not needed to be said...
 texts = s.readAll()
  s.close()
p = fs.open(".passWord", "r")
 textp = p.readAll()
  p.close()
u = fs.open(".userName", "r")
 textu = u.readAll()
  u.close()
os.pullEvent = os.pullEventRaw
  while true do
   term.clear()
   term.setCursorPos(1,1)
     write("User: "..textu)
   term.setCursorPos(1,2)
     write("Password: ")
   input = read("*")
  if input == debug then
    term.clear()
    term.setCursorPos(1,1)
     print("Entering debug mode...")
      sleep(sleepTime)
    term.clear()
    term.setCursorPos(1,1)
     break
  elseif input == textp then
   term.clear()
   term.setCursorPos(1,1)
    write("Password correct!")
    rs.setOutput(texts, true)
    sleep(sleepTime)
    rs.setOutput(texts, false)
  else
   term.clear()
   term.setCursorPos(1,1)
    write("Password incorrect...")
    sleep(sleepTime)
 end
end
os.pullEvent = oldPull