118 lines
3.6 KiB
Python
118 lines
3.6 KiB
Python
"""Alexa HTTP interface."""
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import logging
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from homeassistant import core
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from homeassistant.components.http.view import HomeAssistantView
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from .auth import Auth
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from .config import AbstractConfig
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from .const import (
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CONF_CLIENT_ID,
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CONF_CLIENT_SECRET,
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CONF_ENDPOINT,
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CONF_ENTITY_CONFIG,
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CONF_FILTER,
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)
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from .state_report import async_enable_proactive_mode
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from .smart_home import async_handle_message
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_LOGGER = logging.getLogger(__name__)
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SMART_HOME_HTTP_ENDPOINT = "/api/alexa/smart_home"
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class AlexaConfig(AbstractConfig):
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"""Alexa config."""
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def __init__(self, hass, config):
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"""Initialize Alexa config."""
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super().__init__(hass)
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self._config = config
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if config.get(CONF_CLIENT_ID) and config.get(CONF_CLIENT_SECRET):
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self._auth = Auth(hass, config[CONF_CLIENT_ID], config[CONF_CLIENT_SECRET])
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else:
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self._auth = None
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@property
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def supports_auth(self):
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"""Return if config supports auth."""
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return self._auth is not None
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@property
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def should_report_state(self):
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"""Return if we should proactively report states."""
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return self._auth is not None
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@property
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def endpoint(self):
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"""Endpoint for report state."""
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return self._config.get(CONF_ENDPOINT)
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@property
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def entity_config(self):
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"""Return entity config."""
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return self._config.get(CONF_ENTITY_CONFIG) or {}
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def should_expose(self, entity_id):
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"""If an entity should be exposed."""
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return self._config[CONF_FILTER](entity_id)
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@core.callback
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def async_invalidate_access_token(self):
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"""Invalidate access token."""
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self._auth.async_invalidate_access_token()
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async def async_get_access_token(self):
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"""Get an access token."""
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return await self._auth.async_get_access_token()
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async def async_accept_grant(self, code):
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"""Accept a grant."""
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return await self._auth.async_do_auth(code)
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async def async_setup(hass, config):
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"""Activate Smart Home functionality of Alexa component.
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This is optional, triggered by having a `smart_home:` sub-section in the
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alexa configuration.
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Even if that's disabled, the functionality in this module may still be used
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by the cloud component which will call async_handle_message directly.
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"""
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smart_home_config = AlexaConfig(hass, config)
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hass.http.register_view(SmartHomeView(smart_home_config))
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if smart_home_config.should_report_state:
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await async_enable_proactive_mode(hass, smart_home_config)
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class SmartHomeView(HomeAssistantView):
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"""Expose Smart Home v3 payload interface via HTTP POST."""
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url = SMART_HOME_HTTP_ENDPOINT
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name = "api:alexa:smart_home"
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def __init__(self, smart_home_config):
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"""Initialize."""
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self.smart_home_config = smart_home_config
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async def post(self, request):
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"""Handle Alexa Smart Home requests.
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The Smart Home API requires the endpoint to be implemented in AWS
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Lambda, which will need to forward the requests to here and pass back
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the response.
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"""
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hass = request.app["hass"]
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user = request["hass_user"]
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message = await request.json()
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_LOGGER.debug("Received Alexa Smart Home request: %s", message)
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response = await async_handle_message(
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hass, self.smart_home_config, message, context=core.Context(user_id=user.id)
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)
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_LOGGER.debug("Sending Alexa Smart Home response: %s", response)
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return b"" if response is None else self.json(response)
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