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Add exclude option to nmap device tracker (#2983)

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* Add exclude option to nmap device tracker

Adds an optional exclude paramater to nmap device tracker.
Devices specified in the exclude list will never be scanned
by nmap. This can help to reduce log spam.

ex:
```
device_tracker:
  - platform: nmap_tracker
    hosts: 10.0.0.1/24
    home_interval: 1
    interval_seconds: 12
    consider_home: 120
    track_new_devices: yes
    exclude:
      - 10.0.0.2
      - 10.0.0.1
```

* Handle optional exclude

* Style fixed
This commit is contained in:
Dan 2016-09-03 19:41:38 -04:00 committed by Robbie Trencheny
parent 91a3522100
commit 68ef55a982
1 changed files with 13 additions and 4 deletions
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17
homeassistant/components/device_tracker/nmap_tracker.py
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@ -22,7 +22,8 @@ MIN_TIME_BETWEEN_SCANS = timedelta(seconds=5)
_LOGGER = logging.getLogger(__name__)
# Interval in minutes to exclude devices from a scan while they are home
CONF_HOME_INTERVAL = "home_interval"
CONF_HOME_INTERVAL = 'home_interval'
CONF_EXCLUDE = 'exclude'
REQUIREMENTS = ['python-nmap==0.6.1']
@ -60,6 +61,7 @@ class NmapDeviceScanner(object):
self.last_results = []
self.hosts = config[CONF_HOSTS]
self.exclude = config.get(CONF_EXCLUDE, [])
minutes = convert(config.get(CONF_HOME_INTERVAL), int, 0)
self.home_interval = timedelta(minutes=minutes)
@ -93,7 +95,8 @@ class NmapDeviceScanner(object):
from nmap import PortScanner, PortScannerError
scanner = PortScanner()
options = "-F --host-timeout 5s"
options = "-F --host-timeout 5s "
exclude = "--exclude "
if self.home_interval:
boundary = dt_util.now() - self.home_interval
@ -102,10 +105,16 @@ class NmapDeviceScanner(object):
if last_results:
# Pylint is confused here.
# pylint: disable=no-member
options += " --exclude {}".format(",".join(device.ip for device
in last_results))
exclude_hosts = self.exclude + [device.ip for device
in last_results]
else:
exclude_hosts = self.exclude
else:
last_results = []
exclude_hosts = self.exclude
if exclude_hosts:
exclude = " --exclude {}".format(",".join(exclude_hosts))
options += exclude
try:
result = scanner.scan(hosts=self.hosts, arguments=options)