html5 notifications add VAPID support (#20415)

* html5 notifications add VAPID support

* fix lint errors

* replace httpapi with websocketapi

* Address my own comment
This commit is contained in:
Tommy Jonsson 2019-01-29 23:49:33 +01:00 committed by Paulus Schoutsen
parent 89fc3b2a1b
commit c5c64e738e

View File

@ -17,6 +17,7 @@ from voluptuous.humanize import humanize_error
from homeassistant.util.json import load_json, save_json
from homeassistant.exceptions import HomeAssistantError
from homeassistant.components import websocket_api
from homeassistant.components.frontend import add_manifest_json_key
from homeassistant.components.http import HomeAssistantView
from homeassistant.components.notify import (
@ -39,10 +40,16 @@ SERVICE_DISMISS = 'html5_dismiss'
ATTR_GCM_SENDER_ID = 'gcm_sender_id'
ATTR_GCM_API_KEY = 'gcm_api_key'
ATTR_VAPID_PUB_KEY = 'vapid_pub_key'
ATTR_VAPID_PRV_KEY = 'vapid_prv_key'
ATTR_VAPID_EMAIL = 'vapid_email'
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
vol.Optional(ATTR_GCM_SENDER_ID): cv.string,
vol.Optional(ATTR_GCM_API_KEY): cv.string,
vol.Optional(ATTR_VAPID_PUB_KEY): cv.string,
vol.Optional(ATTR_VAPID_PRV_KEY): cv.string,
vol.Optional(ATTR_VAPID_EMAIL): cv.string,
})
ATTR_SUBSCRIPTION = 'subscription'
@ -64,6 +71,11 @@ ATTR_DISMISS = 'dismiss'
ATTR_JWT = 'jwt'
WS_TYPE_APPKEY = 'notify/html5/appkey'
SCHEMA_WS_APPKEY = websocket_api.BASE_COMMAND_MESSAGE_SCHEMA.extend({
vol.Required('type'): WS_TYPE_APPKEY
})
# The number of days after the moment a notification is sent that a JWT
# is valid.
JWT_VALID_DAYS = 7
@ -120,6 +132,18 @@ def get_service(hass, config, discovery_info=None):
if registrations is None:
return None
vapid_pub_key = config.get(ATTR_VAPID_PUB_KEY)
vapid_prv_key = config.get(ATTR_VAPID_PRV_KEY)
vapid_email = config.get(ATTR_VAPID_EMAIL)
def websocket_appkey(hass, connection, msg):
connection.send_message(
websocket_api.result_message(msg['id'], vapid_pub_key))
hass.components.websocket_api.async_register_command(
WS_TYPE_APPKEY, websocket_appkey, SCHEMA_WS_APPKEY
)
hass.http.register_view(
HTML5PushRegistrationView(registrations, json_path))
hass.http.register_view(HTML5PushCallbackView(registrations))
@ -132,7 +156,8 @@ def get_service(hass, config, discovery_info=None):
ATTR_GCM_SENDER_ID, config.get(ATTR_GCM_SENDER_ID))
return HTML5NotificationService(
hass, gcm_api_key, registrations, json_path)
hass, gcm_api_key, vapid_prv_key, vapid_email, registrations,
json_path)
def _load_config(filename):
@ -336,9 +361,12 @@ class HTML5PushCallbackView(HomeAssistantView):
class HTML5NotificationService(BaseNotificationService):
"""Implement the notification service for HTML5."""
def __init__(self, hass, gcm_key, registrations, json_path):
def __init__(self, hass, gcm_key, vapid_prv, vapid_email, registrations,
json_path):
"""Initialize the service."""
self._gcm_key = gcm_key
self._vapid_prv = vapid_prv
self._vapid_claims = {"sub": "mailto:{}".format(vapid_email)}
self.registrations = registrations
self.registrations_json_path = json_path
@ -425,7 +453,7 @@ class HTML5NotificationService(BaseNotificationService):
def _push_message(self, payload, **kwargs):
"""Send the message."""
import jwt
from pywebpush import WebPusher
from pywebpush import WebPusher, webpush
timestamp = int(time.time())
@ -452,14 +480,23 @@ class HTML5NotificationService(BaseNotificationService):
jwt_token = jwt.encode(jwt_claims, jwt_secret).decode('utf-8')
payload[ATTR_DATA][ATTR_JWT] = jwt_token
# Only pass the gcm key if we're actually using GCM
# If we don't, notifications break on FireFox
gcm_key = self._gcm_key \
if 'googleapis.com' in info[ATTR_SUBSCRIPTION][ATTR_ENDPOINT] \
else None
response = WebPusher(info[ATTR_SUBSCRIPTION]).send(
json.dumps(payload), gcm_key=gcm_key, ttl='86400'
)
if self._vapid_prv and self._vapid_claims:
response = webpush(
info[ATTR_SUBSCRIPTION],
json.dumps(payload),
vapid_private_key=self._vapid_prv,
vapid_claims=self._vapid_claims
)
else:
# Only pass the gcm key if we're actually using GCM
# If we don't, notifications break on FireFox
gcm_key = self._gcm_key \
if 'googleapis.com' \
in info[ATTR_SUBSCRIPTION][ATTR_ENDPOINT] \
else None
response = WebPusher(info[ATTR_SUBSCRIPTION]).send(
json.dumps(payload), gcm_key=gcm_key, ttl='86400'
)
if response.status_code == 410:
_LOGGER.info("Notification channel has expired")