pyhOn/pyhon/connection/handler.py

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