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"""Discover Xiaomi Mi Home (aka Lumi) Gateways."""
from . import MDNSDiscoverable
from ..const import ATTR_MAC_ADDRESS, ATTR_PROPERTIES
class Discoverable(MDNSDiscoverable):
"""Add support for discovering Xiaomi Gateway"""
def __init__(self, nd):
"""Initialize the discovery."""
super(Discoverable, self).__init__(nd, '_miio._udp.local.')
def info_from_entry(self, entry):
"""Return most important info from mDNS entries."""
info = super().info_from_entry(entry)
# Workaround of misparsing of mDNS properties. It's unclear
# whether it's bug in zeroconf module or in the Gateway, but
# returned properties look like:
# {b'poch': b'0:mac=286c07aaaaaa\x00'} instead of expected:
# {b'epoch': b'0', b'mac': '286c07aaaaaa'}
if "poch" in info[ATTR_PROPERTIES]:
misparsed = info[ATTR_PROPERTIES]["poch"]
misparsed = misparsed.rstrip("\0")
for val in misparsed.split(":"):
if val.startswith("mac="):
info[ATTR_MAC_ADDRESS] = val[len("mac="):]
return info
def get_entries(self):
"""Return Xiaomi Gateway devices."""
return self.find_by_device_name('lumi-gateway-')
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