55 lines
1.4 KiB
Python
55 lines
1.4 KiB
Python
"""
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homeassistant.components.device_tracker.owntracks
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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OwnTracks platform for the device tracker.
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device_tracker:
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platform: owntracks
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"""
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import json
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import logging
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import homeassistant.components.mqtt as mqtt
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DEPENDENCIES = ['mqtt']
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LOCATION_TOPIC = 'owntracks/+/+'
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def setup_scanner(hass, config, see):
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""" Set up a OwnTracksks tracker. """
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def owntracks_location_update(topic, payload, qos):
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""" MQTT message received. """
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# Docs on available data:
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# http://owntracks.org/booklet/tech/json/#_typelocation
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try:
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data = json.loads(payload)
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except ValueError:
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# If invalid JSON
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logging.getLogger(__name__).error(
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'Unable to parse payload as JSON: %s', payload)
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return
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if not isinstance(data, dict) or data.get('_type') != 'location':
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return
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parts = topic.split('/')
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kwargs = {
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'dev_id': '{}_{}'.format(parts[1], parts[2]),
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'host_name': parts[1],
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'gps': (data['lat'], data['lon']),
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}
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if 'acc' in data:
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kwargs['gps_accuracy'] = data['acc']
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if 'batt' in data:
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kwargs['battery'] = data['batt']
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see(**kwargs)
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mqtt.subscribe(hass, LOCATION_TOPIC, owntracks_location_update, 1)
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return True
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