core/homeassistant/components/device_tracker/fritz.py

105 lines
3.6 KiB
Python

"""
Support for FRITZ!Box routers.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/device_tracker.fritz/
"""
import logging
from datetime import timedelta
from homeassistant.components.device_tracker import DOMAIN
from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_USERNAME
from homeassistant.helpers import validate_config
from homeassistant.util import Throttle
REQUIREMENTS = ['https://github.com/deisi/fritzconnection/archive/'
'b5c14515e1c8e2652b06b6316a7f3913df942841.zip'
'#fritzconnection==0.4.6']
# Return cached results if last scan was less then this time ago.
MIN_TIME_BETWEEN_SCANS = timedelta(seconds=5)
_LOGGER = logging.getLogger(__name__)
def get_scanner(hass, config):
"""Validate the configuration and return FritzBoxScanner."""
if not validate_config(config,
{DOMAIN: []},
_LOGGER):
return None
scanner = FritzBoxScanner(config[DOMAIN])
return scanner if scanner.success_init else None
# pylint: disable=too-many-instance-attributes
class FritzBoxScanner(object):
"""This class queries a FRITZ!Box router."""
def __init__(self, config):
"""Initialize the scanner."""
self.last_results = []
self.host = '169.254.1.1' # This IP is valid for all FRITZ!Box router.
self.username = 'admin'
self.password = ''
self.success_init = True
# pylint: disable=import-error
import fritzconnection as fc
# Check for user specific configuration
if CONF_HOST in config.keys():
self.host = config[CONF_HOST]
if CONF_USERNAME in config.keys():
self.username = config[CONF_USERNAME]
if CONF_PASSWORD in config.keys():
self.password = config[CONF_PASSWORD]
# Establish a connection to the FRITZ!Box.
try:
self.fritz_box = fc.FritzHosts(address=self.host,
user=self.username,
password=self.password)
except (ValueError, TypeError):
self.fritz_box = None
# At this point it is difficult to tell if a connection is established.
# So just check for null objects.
if self.fritz_box is None or not self.fritz_box.modelname:
self.success_init = False
if self.success_init:
_LOGGER.info("Successfully connected to %s",
self.fritz_box.modelname)
self._update_info()
else:
_LOGGER.error("Failed to establish connection to FRITZ!Box "
"with IP: %s", self.host)
def scan_devices(self):
"""Scan for new devices and return a list of found device ids."""
self._update_info()
active_hosts = []
for known_host in self.last_results:
if known_host["status"] == "1":
active_hosts.append(known_host["mac"])
return active_hosts
def get_device_name(self, mac):
"""Return the name of the given device or None if is not known."""
ret = self.fritz_box.get_specific_host_entry(mac)["NewHostName"]
if ret == {}:
return None
return ret
@Throttle(MIN_TIME_BETWEEN_SCANS)
def _update_info(self):
"""Retrieve latest information from the FRITZ!Box."""
if not self.success_init:
return False
_LOGGER.info("Scanning")
self.last_results = self.fritz_box.get_hosts_info()
return True