Scan for Priv factory images

privscan.py

import requests


def availability(url):
    try:
        avlty = requests.head(url)
        status = int(avlty.status_code)
        return status == 200 or 300 < status <= 308
    except requests.ConnectionError:
        return False


def scanner(branch, floor=0, ceil=999, variant="common"):
    for x in range(floor, ceil+1):
        ver = str(x).zfill(3)  # zero pad
        print("NOW SCANNING: {}".format(branch.upper() + ver), end="\r")
        skel = "http://bbapps.download.blackberry.com/Priv/bbry_qc8992_autoloader_user-{2}-{0}{1}.zip".format(branch.upper(), ver, variant)
        avail = availability(skel)
        if avail:
            print("\r")
            print("{} AVAILABLE!".format(branch.upper() + ver))
            print(skel)


if __name__ == "__main__":
    while True:
        branch = input("BRANCH (ex. AAD): ")
        if len(branch) != 3:
            print("BRANCH MUST BE 3 LETTERS, TRY AGAIN")
            continue
        else:
            break
    while True:
        try:
            floor = int(input("INITIAL OS (0-998): "))
        except ValueError:
            floor = 0
        else:
            if floor < 0:
                print("INITIAL < 0, TRY AGAIN")
                continue
            elif floor > 999:
                print("INITIAL BETWEEN 0 AND 999, TRY AGAIN")
                continue
            else:
                break
    while True:
        try:
            ceil = int(input("FINAL OS (1-999): "))
        except ValueError:
            ceil = 999
        else:
            if ceil < floor:
                print("FINAL < INITIAL, TRY AGAIN")
                continue
            elif ceil > 999:
                print("FINAL BETWEEN 1 AND 999, TRY AGAIN")
                continue
            else:
                break
    scanner(branch, floor, ceil)