password

--The "password" triggers a redstone signal on the side "redstoneSide" to open a door, "exitProgram" is to exit the program
--uncomment the following line if you want to disable program termination. Personally I have had problems with it so I keep it disabled.

--os.pullEvent() = os.pullEventRaw()
password = 'your password here'
exitProgram = 'exitProgram'
redstoneSide  = 'bottom' --has to be one of the following: 'bottom' 'front' 'top' 'left' 'back' 'right'
username = 'your username here'

--Clears terminal for a new message
function clearTerm(x)
    term.clear()
    term.setCursorPos(1,1)
    print(x)
end

--The main function, asks for a password and compares to the set variables.
function enterPassword()
    clearTerm(string.format('%s\'s PC, please don\'t fiddle around!',username))
    enteredText = io.read()
    if enteredText == password then
        rs.setOutput(redstoneSide, true)
        clearTerm('Welcome')
        os.sleep(3)
        rs.setOutput(redstoneSide, false)
        enterPassword()
    elseif enteredText == exitProgram then
        clearTerm('Exitting...')
        return
    else
        clearTerm('Please stop')
        os.sleep(3)
        enterPassword()
    end
    return
end

enterPassword()