Simple Door Lock

local defaultInfo = {}
--Prevents CTRL+T from terminating the program.
--os.pullEvent = os.pullEventRaw
--Reads the pconf file for info.
function readpconf()
    file = fs.open("/.pconf", "r")
  ts = file.readAll()
  tss = textutils.unserialize(ts)
    file.close()
end

--Checks password file. If it doesn't exist, it will create one and prompt for a password.
function check()
    if not fs.exists("/.pconf") then
        print("Config file not found.")
        print("Enter new password:")
        temp1 = tostring(read("*"))
        print("Enter output side:")
        temp2 = tostring(read())
        print("Enter open time:")
        temp3 = tonumber(read())
        print("Enter wrong password timeout:")
        temp4 = tonumber(read())
        table.insert(defaultInfo, temp1)
        table.insert(defaultInfo, temp2)
        table.insert(defaultInfo, temp3)
        table.insert(defaultInfo, temp4)
        file = fs.open("/.pconf", "w")
        ts = textutils.serialize(defaultInfo)
        file.write(ts)
        file.close()
        check()
    end
end

local function passwordCorrect()
    print("Password is correct.")
    redstone.setOutput(tss[2], true)
    sleep(tss[3])
    redstone.setOutput(tss[2], false)
end

local function passwordIncorrect()
    print("Password is INCORRECT.")
    sleep(tss[4])
end

local function prompt()
    term.clear()
    term.setCursorPos(1,1)
    print("Enter password:")
    attempt = tostring(read("*"))
    if attempt == tss[1] then
        passwordCorrect()
    else
        passwordIncorrect()
    end
end

check()

readpconf()

while true do
    prompt()
end