upnpsock.py 文件源码

def valid_mappable_ipv4(address):
    try:
        address_uni = unicode(address, errors='ignore')
    except TypeError:
        address_uni = address

    if address_uni in NON_MAPPABLE:
        return False

    try:
        parsed = ipaddress.ip_address(address_uni)
    except ValueError:
        log.debug('invalid IPv4 address', input=address)
        return False
    if parsed is not None and parsed.version == 4:
        return True
    else:
        return False