Door Lock - Server

os.pullEvent = os.pullEventRaw
serverID = 3604
serverName = "EpicServer"
serverPass = "smiggerryan12"

if not fs.exists("db") then
    downloadDB = http.get("http://pastebin.com/raw.php?i=SfXFSh0a")
    downloadDBView = downloadDB.readAll()
    downloadDB.close()

    writeDB = fs.open("db", "w")
    writeDB.write(downloadDBView)
    writeDB.close()

    os.loadAPI("db")
elseif fs.exists("db") then
    os.loadAPI("db")
end

x, y = term.getSize()

function centered(str, height)
    term.setCursorPos(x / 2 - #str / 2, height)
    term.write(str)
end

function indented(str, indent, height)
    term.setCursorPos(indent, height)
    term.write(str)
end

function left(str, height)
    term.setCursorPos(1, height)
    term.write(str)
end

function right(str, height)
    term.setCursorPos(x - #str, height)
end

function clearLine(colour, height)
    term.setCursorPos(1, height)
    term.setBackgroundColour(colours[colour])
    term.clearLine()
end


function doorLock()
    while true do
        rednet.open("back")
        term.setBackgroundColour(colours.cyan)
        term.clear()
        term.setTextColour(colours.lightBlue)
        clearLine("blue", 1)
        clearLine("blue", 2)
        clearLine("blue", 3)
        indented("EpicCo", 2, 2)
        term.setBackgroundColour(colours.cyan)
        indented("Username: ", 2, 6)
        indented("Password: ", 2, 8)
        term.setCursorPos(12, 6)
        usernameAuth = read()
        term.setCursorPos(12, 8)
        passwordAuth = read("*")
        if db.checkUser(serverID, serverName, serverPass, usernameAuth, passwordAuth) then
            rs.setOutput("bottom", true)
            sleep(5)
            rs.setOutput("bottom", false)
        end
    end
end

function pocketOpen()
    while true do
        rednet.open("back")
        local id, msg, dis = rednet.receive()
        if type(msg) == "table" and msg.username and msg.password then
            if db.checkUser(serverID, serverName, serverPass, msg.username, msg.password) then
                rs.setOutput("bottom", true)
                sleep(5)
                rs.setOutput("bottom", false)
            end
        end
    end
end

term.clear()
parallel.waitForAny(doorLock, pocketOpen)