AdvLock - New security

function securePaths()
    del = 0
    local lockedFiles = {"startup", ".advLock"}
    local oldFsDelete = fs.delete
    fs.delete = function(...)
        local tArg = {...}


        if not fs.isLocked then
            return oldFsDelete(unpack(tArg))
        end
        for lockedFile = 1, #lockedFiles do
            if string.lower(tArg[1]) == string.lower(lockedFiles[lockedFile]) and not fs.isDir(tArg[1]) then
                error("AdvLock: You do not have access to delete this file!", 3)
            elseif string.lower(tArg[1]) == string.lower(lockedFiles[lockedFile]) and fs.isDir(tArg[1]) then
                error("AdvLock: You do not have access to delete this folder!", 3)
            else
                del = del + 1
            end
        end
        if del == #lockedFiles then
            del = 0
            return oldFsDelete(unpack(tArg))
        end
    end
    del = 0
    local oldFsOpen = fs.open
    fs.open = function(...)
        local tArg = {...}


        if not fs.isLocked then
            return oldFsOpen(unpack(tArg))
        end
        for lockedFile = 1, #lockedFiles do
            if string.lower(tArg[1]) == string.lower(lockedFiles[lockedFile]) and not fs.isDir(tArg[1]) then
                error("AdvLock: You do not have access to edit this file!", 3)
            elseif string.lower(tArg[1]) == string.lower(lockedFiles[lockedFile]) and fs.isDir(tArg[1]) then
                error("AdvLock: You do not have access to edit this folder!", 3)
            else
                del = del + 1
            end
        end
        if del == #lockedFiles then
            del = 0
            return oldFsOpen(unpack(tArg))
        end
    end
end