core/homeassistant/components/device_tracker/geofancy.py

72 lines
2.2 KiB
Python

"""
homeassistant.components.device_tracker.geofancy
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Geofancy platform for the device tracker.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/device_tracker.geofancy.html
"""
from homeassistant.const import (
HTTP_UNPROCESSABLE_ENTITY, HTTP_INTERNAL_SERVER_ERROR)
DEPENDENCIES = ['http']
_SEE = 0
URL_API_GEOFANCY_ENDPOINT = "/api/geofancy"
def setup_scanner(hass, config, see):
""" Set up an endpoint for the Geofancy app. """
# Use a global variable to keep setup_scanner compact when using a callback
global _SEE
_SEE = see
# POST would be semantically better, but that currently does not work
# since Geofancy sends the data as key1=value1&key2=value2
# in the request body, while Home Assistant expects json there.
hass.http.register_path(
'GET', URL_API_GEOFANCY_ENDPOINT, _handle_get_api_geofancy)
return True
def _handle_get_api_geofancy(handler, path_match, data):
""" Geofancy message received. """
if not isinstance(data, dict):
handler.write_json_message(
"Error while parsing Geofancy message.",
HTTP_INTERNAL_SERVER_ERROR)
return
if 'latitude' not in data or 'longitude' not in data:
handler.write_json_message(
"Location not specified.",
HTTP_UNPROCESSABLE_ENTITY)
return
if 'device' not in data or 'id' not in data:
handler.write_json_message(
"Device id or location id not specified.",
HTTP_UNPROCESSABLE_ENTITY)
return
try:
gps_coords = (float(data['latitude']), float(data['longitude']))
except ValueError:
# If invalid latitude / longitude format
handler.write_json_message(
"Invalid latitude / longitude format.",
HTTP_UNPROCESSABLE_ENTITY)
return
# entity id's in Home Assistant must be alphanumerical
device_uuid = data['device']
device_entity_id = device_uuid.replace('-', '')
_SEE(dev_id=device_entity_id, gps=gps_coords, location_name=data['id'])
handler.write_json_message("Geofancy message processed")