check cve

# check if file modified in the last several daysdef check_file_modified(filename, days):    file_modify_time = getmtime(filename)    return time() - file_modify_time < (days * 3600 * 1000)

def write_json(filename, result):    with open(filename, 'w') as f:        dump(result, f, indent=2)

def write_csv(filename, result, header):    with open(filename, 'w', newline='') as f:        writer = csv.writer(f, delimiter=',')        writer.writerow(header)        for ele in result:            writer.writerow([ele["id"], ele["last-modified"], ele["cvss"], ele["summary"]])

def search(params, options):    url = "https://cve.circl.lu/api/search/" + params    print(url)    filename = f"{params.replace('/', '-')}.json"    try:        if isfile(filename) and check_file_modified(filename, 3):            with open(filename, 'r') as f:                result = loads(f.read())        else:            res = get(url)            if res.status_code == 200:                with open(filename, 'w') as f:                    f.write(res.text)                result = loads(res.text)            else:                print("Request failed: %d".format(res.status_code))        cve_result = []        for ele in result:            if has_cve(ele, options.vendor, options.product, options.version, options.edition):                obj = {                    "id": ele["id"],                    "last-modified": ele["last-modified"],                    "cvss": ele["cvss"],                    "summary": ele["summary"]                }                cve_result.append(obj)            else:                continue        print(f"{options.vendor}:{options.product}:{options.version}:{options.edition} "              f"has impacted by {len(cve_result)} cve")        if options.output is None or options.output == "csv":            write_csv("result.csv", cve_result, ["id", "last-modified", "cvss", "summary"])        else:            write_json("result.json", cve_result)    except Exception as e:        print(e)