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__init__.py
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# -*- coding: utf-8 -*-
"""An advanced IPv4/IPv6 subnet calculator. Returns all relevant Attributes (Broadcast, First/Last, exploded etc...)
Can also be used for Sub/Supernetting or find previous / next prefixes.
Synopsis: <trigger> [x.x.x.x|x:x::x]/y {next|prev|sub|sup|/YY} {<level>}
Details Args:
next - NEXT aligned subnet with the same mask
prev - PREVious" aligned subnet with the same mask
sub - returns next lower SUBbnets e.g. x/24 -> y/25, z/25
sup - find containing higher SUPpernet e.g. x/24s -> x/23
Default one level, can be passed as an additional argument:
x/24 sub 2 -> y/26, z/26 etc..
Instead of sub/sup args, the desired /xx subnet argument is also accepted:
x/24 /29 -> y/29, z/29 etc...
"""
from albert import *
from pathlib import Path
import ipaddress
import re
md_iid = "2.3"
md_version = "1.5"
md_name = "SubnetCalc"
md_description = "Calculate IPv4/IPv6 Subnets"
md_license = "MIT"
md_url = "https://github.com/Bierchermuesli/albert-subnetcalc"
md_maintainers = "@Bierchermuesli"
md_lib_dependencies = ["ipaddress"]
ordinal = lambda n: "%d%s" % (n, "tsnrhtdd"[(n // 10 % 10 != 1) * (n % 10 < 4) * n % 10 :: 4])
class Plugin(PluginInstance, TriggerQueryHandler):
def __init__(self):
PluginInstance.__init__(self)
TriggerQueryHandler.__init__(
self, self.id, self.name, self.description,
defaultTrigger='sc '
)
# default types
def handleTriggerQuery(self, query):
if query.isValid:
addr = False
debug("Subnetcal checking: " + str(query.string.split()))
icon = [f"file:{Path(__file__).parent}/icon.svg"]
# icon = [f"gen:?text=IPv?&fontscalar=0.3"]
try:
addr = ipaddress.ip_network(query.string.split()[0], strict=False)
icon = [f"file:{Path(__file__).parent}/ipv{addr.version}.svg"]
# icon = [f"gen:?text=IPv{addr.version}&fontscalar=0.3"]
except:
debug("Subnetcal failed: " + query.string)
# without any args
if addr:
if len(query.string.split()) == 1:
if (addr.version == 4 and addr.prefixlen == 32) or (addr.version == 6 and addr.prefixlen == 128):
subtext = f"IPv{addr.version} Host"
addr.is_host = True
addr.hex = addr.hosts()[0].packed.hex()
addr.bin = ''.join(f'{byte:08b}' for byte in addr.hosts()[0].packed)
else:
subtext = f"IPv{addr.version} Net"
addr.is_host = False
if addr.is_loopback:
subtext += " Loopback"
if addr.is_global:
subtext += " Global"
if addr.is_private:
subtext += " Private"
if addr.is_multicast:
subtext += " Multicast"
if addr.is_multicast:
subtext += " Multicast"
if addr.is_reserved:
subtext += " Reserved"
if addr.is_unspecified:
subtext += " Unspecified"
if addr.version == 4:
if addr.is_host:
query.add(
StandardItem(
text=str(addr),
iconUrls=icon,
subtext=subtext,
actions=[
Action("reverse", f"Reverse Pointer {addr.reverse_pointer}", lambda: setClipboardText(str(addr.reverse_pointer))),
Action("hex", f"Hex {addr.hex}", lambda: setClipboardText(str(addr.hex))),
Action("bin", f"Bin {addr.bin}", lambda: setClipboardText(str(addr.bin)))
],
)
)
else:
subtext += f", max hosts {addr.num_addresses}"
query.add(
StandardItem(
text=str(addr),
subtext=subtext,
iconUrls=icon,
actions=[
Action("network", f"Network {addr.network_address}", lambda: setClipboardText(str(addr.network_address))),
Action("netmask", f"Netmask {addr.netmask} (= /{addr.prefixlen})", lambda: setClipboardText(str(addr.netmask))),
Action("first", f"First {addr.network_address + 1}", lambda: setClipboardText(str(addr.network_address + 1))),
Action("last", f"Last {addr.broadcast_address - 1}", lambda: setClipboardText(str(addr.broadcast_address - 1))),
Action("broadcast", f"Broadcast {addr.broadcast_address}", lambda: setClipboardText(str(addr.broadcast_address))),
Action("wildcard", f"Widlcard {addr.hostmask}", lambda: setClipboardText(str(addr.hostmask))),
Action("max", f"Max Addr {addr.num_addresses}", lambda: setClipboardText(str(addr.num_addresses))),
Action("networkhex", f"Network Hex {addr.network_address.packed.hex()}", lambda: setClipboardText(str(addr.network_address.packed.hex()))),
Action("netmaskhex", f"Mask Hex {addr.netmask.packed.hex()} (= /{addr.prefixlen})", lambda: setClipboardText(str(addr.netmask.packed.hex()))),
],
)
)
# for ipv6
else:
if addr.is_host:
query.add(
StandardItem(
text=str(addr),
iconUrls=icon,
subtext=subtext,
actions=[
Action("reverse", f"Reverse Pointer {addr.reverse_pointer}", lambda: setClipboardText(str(addr.reverse_pointer))),
Action("compressed", f"Compressed {addr.compressed}", lambda: setClipboardText(str(addr.compressed))),
Action("exploded", f"Exploded {addr.exploded}", lambda: setClipboardText(str(addr.exploded))),
Action("hex", f"Hex {addr.hex}", lambda: setClipboardText(str(addr.hex))),
Action("bin", f"Bin {addr.bin}", lambda: setClipboardText(str(addr.bin)))
],
)
)
else:
subtext += f", contains {2 ** (64 - addr.prefixlen)} /64"
query.add(
StandardItem(
text=str(addr),
subtext=subtext,
iconUrls=icon,
actions=[
Action("network", f"Network {addr.network_address}", lambda: setClipboardText(str(addr.network_address))),
Action("compressed", f"Compressed {addr.compressed}", lambda: setClipboardText(str(addr.compressed))),
Action("exploded", f"Exploded {addr.exploded}", lambda: setClipboardText(str(addr.exploded))),
Action("last", f"Last {addr.broadcast_address}", lambda: setClipboardText(str(addr.broadcast_address))),
Action("netmask", f"Netmask {addr.netmask} (= /{addr.prefixlen})", lambda: setClipboardText(str(addr.netmask))),
Action("wildcard", f"Widlcard {addr.hostmask}", lambda: setClipboardText(str(addr.hostmask))),
Action("max", f"Max Addr {addr.num_addresses}", lambda: setClipboardText(str(addr.num_addresses))),
Action("networkhex", f"Network Hex {addr.network_address.packed.hex()}", lambda: setClipboardText(str(addr.network_address.packed.hex()))),
Action("netmaskhex", f"Mask Hex {addr.netmask.packed.hex()} (= /{addr.prefixlen})", lambda: setClipboardText(str(addr.netmask.packed.hex()))),
],
)
)
### more advanced with further arguments
else:
# bail out the arguments first:
mode = "UNDEF"
level = 0
# <trigger> x.x.x.x |next|prev|sub|sup {#}
# Check if NEXT,PREVIOUS SUBneting and SUPerneting with optional desired level
if match := re.match(r"\S+\s+(sub|sup|next|prev)\s*(\d*)", query.string):
mode = match.groups()[0]
# default one level
if match.groups()[1]:
level = int(match.groups()[1])
else:
level = 1
# <trigger> x.x.x.x /YY
# if desired subnet as CIDR is supplied
elif match := re.match(r"\S+\s/(\d+)", query.string):
loookfor = int(match.groups()[0])
debug("Looking for: /" + str(loookfor))
# find out direction and level by CIDR
# e.g. /24 > /22 -> sup and 2 levels
if addr.prefixlen > loookfor:
level = addr.prefixlen - loookfor
mode = "sup"
else:
level = loookfor - addr.prefixlen
mode = "sub"
debug("Choosed Mode:" + mode + " level:" + str(level))
# Ok, lets calculate...
# SUBnet
if mode.startswith("sub"):
if level > (addr.max_prefixlen - addr.prefixlen):
level = addr.max_prefixlen - addr.prefixlen
query.add(StandardItem(iconUrls=icon, id="unknown", text=f"we can't go lower than /{addr.max_prefixlen} - {ordinal(level)} level "))
for idx, i in enumerate(addr.subnets(prefixlen_diff=level)):
query.add(
StandardItem(
id=f"subnet_{i}",
text=str(i),
subtext=f"{ordinal(idx + 1)} Subnet",
iconUrls=icon,
actions=[Action(f"subnet_{i}_copy", f"Copy network {i}", lambda r=str(i): setClipboardText(r))],
)
)
# next higher "SUPernet"
elif mode.startswith("sup"):
if level > (addr.prefixlen):
level = addr.prefixlen
query.add(StandardItem(iconUrls=icon, text=f"we can't go higher than /0 - {ordinal(level)} level"))
for i in range(int(addr.prefixlen) - 8 - level):
query.add(
StandardItem(
id=f"supernet_{i + level}",
text=str(addr.supernet(prefixlen_diff=i + level)),
iconUrls=icon,
subtext=f"{ordinal(i + level)} level Supernet",
actions=[
Action(
f"supernet_{i + level}_copy",
f"Copy network {addr.supernet(prefixlen_diff=i + level)}",
lambda r=str(addr.supernet(prefixlen_diff=i + level)): setClipboardText(r),
)
],
)
)
debug(query.string)
# simple "next" aligned subnet with the same mask
elif mode.startswith("next"):
for i in range(1, 10):
if addr.version == 4:
next_range = ipaddress.IPv4Network(str(addr[0] + i * addr.num_addresses) + "/" + str(addr.prefixlen), strict=False)
else:
next_range = ipaddress.IPv6Network(str(addr[0] + i * addr.num_addresses) + "/" + str(addr.prefixlen), strict=False)
query.add(
StandardItem(
text=str(next_range),
iconUrls=icon,
subtext=f"next {ordinal(i)} /{addr.prefixlen} subnet",
actions=[Action(f"next_{i}", f"Copy Network {next_range}", lambda r=str(next_range): setClipboardText(r))],
)
)
# simple "previous" aligned subnets with the same mask
elif mode.startswith("prev"):
for i in range(1, 10):
if addr.version == 4:
prev_range = ipaddress.IPv4Network(str(addr[0] - i * addr.num_addresses) + "/" + str(addr.prefixlen), strict=False)
else:
prev_range = ipaddress.IPv6Network(str(addr[0] - i * addr.num_addresses) + "/" + str(addr.prefixlen), strict=False)
query.add(
StandardItem(
text=str(prev_range),
iconUrls=icon,
subtext=f"previous {ordinal(i)} /{addr.prefixlen} subnet",
actions=[Action(f"prev_{i}", f"Copy network {prev_range}", lambda r=str(prev_range): setClipboardText(r))],
)
)
else:
query.add(StandardItem(text="desired /xx prefix or next|prev|sub|sup", iconUrls=icon, subtext="Query was: %s" % query.string))
else:
query.add(StandardItem(text="no valid IPv4/IPv6 address/subnet", iconUrls=icon, subtext="Query was: %s" % query.string))