Python subnet 操作物件

subnetcalc.py

class SubnetCalc(object):
    def __init__(self, network, mask):
        self.network = network.split(".")
        self.msk = mask.split(".")
    @property
    def subnet(self):
        return ".".join(self.network)

    @property
    def mask(self):
        return ".".join(self.msk)

    def _MaskToBin(self):
        binarymask = ''
        for i in self.msk:
            binarymask += bin(int(i))[2:].zfill(8)
        return binarymask

    @property
    def first(self):
        firstIP = self.network.copy()
        firstIP[3] = str(int(firstIP[3]) + 1)
        return ".".join(firstIP)

    def specifyIP(self,num):
        spec = self.network.copy()
        spec[3] = str(num)
        return ".".join(spec)


    def plusNIP(self,num):
        nIP = self.first.split(".")
        nIP[3] = str(int(nIP[3]) + int(num))
        return ".".join(nIP)

    @property
    def broadcastIP(self):
        brcstIP = self.network.copy()
        fIP = self.first.split(".")[3]
        brcstIP[3] = int(fIP) + (int(self.countIP()))
        brcstIP[3] = str(brcstIP[3])
        return ".".join(brcstIP)

    @property
    def last(self):
        lIP = self.broadcastIP.split(".")
        lIP[3] = str(int(lIP[3]) - 1)
        return ".".join(lIP)

    def countIP(self):
        mask = int('11111111111111111111111111111111',2)
        sub_mask = int(self._MaskToBin(),2)
        return int(mask ^ sub_mask) - 1

                        f.write("           pool{\n")                        f.write("                      failover peer \"dhcpfailover\";\n")                        f.write("                      range %s %s;\n" % (subnetHK.plusNIP(5),subnetHK.last))                        f.write("           }")                        f.write("}\n")                        i += 1f.close()