ComputerCraft drivedown (Download files from google drive)

-- drivedown.lua
local args = {...}
if #args < 2 then
    print("Usage: drivedown <URL> <filename>")
    return
end

local url = args[1]
local filename = args[2]

-- Function to extract file ID from Google Drive URL
local function getFileId(url)
    local id = url:match("drive.google.com/file/d/([%w_-]+)/")
    if not id then
        id = url:match("drive.google.com/file/d/([%w_-]+)/view")
    end
    return id
end

-- Function to download the file
local function downloadFile(fileId, filename)
    local downloadUrl = "https://drive.google.com/uc?export=download&id=" .. fileId
    local response = http.get(downloadUrl)
    if response then
        local file = fs.open(filename, "wb")
        file.write(response.readAll())
        file.close()
        response.close()
        print("File downloaded successfully.")
    else
        print("Error downloading file.")
    end
end

local fileId = getFileId(url)
if fileId then
    downloadFile(fileId, filename)
else
    print("Invalid URL.")
end