Door Controler

function getTime()
    time = textutils.formatTime(os.time(), true)
end

function getPeripherals()
    sides = {"top", "bottom", "left", "right", "back"}
    for i, side in pairs(rs.getSides()) do
        local peripheral = peripheral.getType(side)
        if peripheral == "drive" then
            drive = side elseif
            peripheral == "modem" then
            modem = side
        end
    end
    if modem == nil then
        print("There is no modem attached!")
        print("Shutting down in 10 seconds")
        sleep(10)
        os.shutdown()
    elseif drive == nil then
        print("There is no disk drive attached!")
        print("Shutting down in 10 seconds")
        sleep(10)
        os.shutdown()
    end
end

function updater()
    if autoUpdate == true then
        file = fs.open("saves/updater/update", "r" )
        file.readLine()
        file.readLine()
        file.readLine()
        file.readLine()
        file.readLine()
        newestVersion = file.readLine()
        file.close()
        newestVersion = tonumber(newestVersion)
        if newestVersion > currentVersion then
            clear()
            print("There is a new update available")
            print("Current version:", currentVersion, " Newest version", newestVersion)
            sleep(1)
            fs.delete("startup")
            pb("7gFxwLtqs", "startup")
            file = fs.open("saves/updater/version", "w" )
            file.write(newestVersion)
            file.close()
            os.reboot()
        else
            print("The newest version is already installed")
        end
    end
end

function pb(paste, file)
    response = http.get("http://pastebin.com/raw/"..paste)
    sResponse = response.readAll()
    response.close()
    file = fs.open(file, "w" )
    file.write(sResponse)
    file.close()
end

function start()
    settings.set("shell.allow_disk_startup", false)
    settings.save(".settings")
    getPeripherals()
    rednet.open(modem)
    getTime()
    write(time)
    print(": Booted up")
    sleep(1)
    getTime()
    write(time)
    print(": Getting ID")
    rednet.broadcast("sendID", "kj24fg2hz5fhj4xc3gg2c45")
    id, junk = rednet.receive("sdgh1465d+d86hd+h7fh4")
    getTime()
    write(time)
    print(": ID received")
    getTime()
    write(time)
    print(": Getting protocol")
    rednet.send(id, "doorCtrl", "kj24fg2hz5fhj4xc3gg2c45")
    id, doorCtrl = rednet.receive("d567s25f,3j3n5fcd25f3y5")
    getTime()
    write(time)
    print(": Protocol received")
    while true do
        sleep(0.1)
        inserted = disk.isPresent(drive)
        if inserted == true then
            getTime()
            write(time)
            print(": Disk inserted")
            exists = fs.exists("disk/saves/door/loginData")
            if exists == true then
                getTime()
                write(time)
                print(": Login Data found")
                file = fs.open("disk/saves/door/loginData","r")
                sessionKey = file.readLine()
                file.close()
                checkCred()
                if secure == "yes" then
                    redstone.setOutput("top", true)
                    getTime()
                    write(time)
                    print(": Door opened wih key", sessionKey)
                    disk.eject("left")
                    sleep(3)
                    redstone.setOutput("top", false)else
                    print("Invalid session key")
                end else
                print("Login data not found")
                disk.eject("left")
            end
            fs.delete("disk/saves/door/loginData")
            sleep(10)
        end
    end
end

function checkCred()
    rednet.send(2, sessionKey, doorCtrl)
    id, secure = rednet.receive(doorCtrl)
end
start()