events.py 文件源码

def __init__(self, cmd, atyp, addr, port):
        if cmd not in REQ_COMMAND.values():
            raise ValueError("Unsupported request command {}".format(cmd))

        if atyp not in ADDR_TYPE.values():
            raise ValueError("Unsupported address type {}".format(atyp))

        if atyp == ADDR_TYPE["IPV4"]:
            try:
                addr = ipaddress.IPv4Address(addr)
            except ipaddress.AddressValueError:
                raise ValueError("Invalid ipaddress format for IPv4")
        elif atyp == ADDR_TYPE["IPV6"]:
            try:
                addr = ipaddress.IPv6Address(addr)
            except ipaddress.AddressValueError:
                raise ValueError("Invalid ipaddress format for IPv6")
        elif atyp == ADDR_TYPE["DOMAINNAME"] and not isinstance(addr, string_func):
            raise ValueError("Domain name expect to be unicode string")

        self.cmd = cmd
        self.atyp = atyp
        self.addr = addr
        self.port = port