pyhOn/pyhon/connection/handler.py
2023-04-11 22:14:36 +02:00

134 lines
4.7 KiB
Python

import json
from contextlib import asynccontextmanager
import aiohttp
from pyhon import const
from pyhon.connection.auth import HonAuth, _LOGGER
from pyhon.connection.device import HonDevice
from pyhon.exceptions import HonAuthenticationError
class HonBaseConnectionHandler:
_HEADERS = {"user-agent": const.USER_AGENT, "Content-Type": "application/json"}
def __init__(self, session=None):
self._session = session
self._auth = None
async def __aenter__(self):
return await self.create()
async def __aexit__(self, exc_type, exc_val, exc_tb):
await self.close()
async def create(self):
self._session = aiohttp.ClientSession(headers=self._HEADERS)
return self
@asynccontextmanager
async def _intercept(self, method, *args, loop=0, **kwargs):
raise NotImplementedError
@asynccontextmanager
async def get(self, *args, **kwargs):
async with self._intercept(self._session.get, *args, **kwargs) as response:
yield response
@asynccontextmanager
async def post(self, *args, **kwargs):
async with self._intercept(self._session.post, *args, **kwargs) as response:
yield response
async def close(self):
await self._session.close()
class HonConnectionHandler(HonBaseConnectionHandler):
def __init__(self, email, password, session=None):
super().__init__(session=session)
self._device = HonDevice()
self._email = email
self._password = password
if not self._email:
raise HonAuthenticationError("An email address must be specified")
if not self._password:
raise HonAuthenticationError("A password address must be specified")
self._request_headers = {}
@property
def device(self):
return self._device
async def create(self):
await super().create()
self._auth = HonAuth(self._session, self._email, self._password, self._device)
return self
async def _check_headers(self, headers):
if (
"cognito-token" not in self._request_headers
or "id-token" not in self._request_headers
):
if await self._auth.authorize():
self._request_headers["cognito-token"] = self._auth.cognito_token
self._request_headers["id-token"] = self._auth.id_token
else:
raise HonAuthenticationError("Can't login")
return headers | self._request_headers
@asynccontextmanager
async def _intercept(self, method, *args, loop=0, **kwargs):
kwargs["headers"] = await self._check_headers(kwargs.get("headers", {}))
async with method(*args, **kwargs) as response:
if response.status in [401, 403] and loop == 0:
_LOGGER.info("Try refreshing token...")
await self._auth.refresh()
async with self._intercept(
method, *args, loop=loop + 1, **kwargs
) as result:
yield result
elif response.status in [401, 403] and loop == 1:
_LOGGER.warning(
"%s - Error %s - %s",
response.request_info.url,
response.status,
await response.text(),
)
await self.create()
async with self._intercept(
method, *args, loop=loop + 1, **kwargs
) as result:
yield result
elif loop >= 2:
_LOGGER.error(
"%s - Error %s - %s",
response.request_info.url,
response.status,
await response.text(),
)
raise HonAuthenticationError("Login failure")
else:
try:
await response.json()
yield response
except json.JSONDecodeError:
_LOGGER.warning(
"%s - JsonDecodeError %s - %s",
response.request_info.url,
response.status,
await response.text(),
)
yield {}
class HonAnonymousConnectionHandler(HonBaseConnectionHandler):
_HEADERS = HonBaseConnectionHandler._HEADERS | {"x-api-key": const.API_KEY}
@asynccontextmanager
async def _intercept(self, method, *args, loop=0, **kwargs):
kwargs["headers"] = kwargs.pop("headers", {}) | self._HEADERS
async with method(*args, **kwargs) as response:
if response.status == 403:
_LOGGER.error("Can't authenticate anymore")
yield response