mirror of
https://github.com/python-kasa/python-kasa.git
synced 2024-12-22 19:23:34 +00:00
89 lines
3.0 KiB
Python
Executable File
89 lines
3.0 KiB
Python
Executable File
"""Module for the IOT legacy IOT KASA protocol."""
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import asyncio
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import logging
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from typing import Dict, Union
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from .exceptions import (
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AuthenticationException,
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ConnectionException,
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RetryableException,
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SmartDeviceException,
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TimeoutException,
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)
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from .json import dumps as json_dumps
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from .protocol import BaseProtocol, BaseTransport
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_LOGGER = logging.getLogger(__name__)
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class IotProtocol(BaseProtocol):
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"""Class for the legacy TPLink IOT KASA Protocol."""
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BACKOFF_SECONDS_AFTER_TIMEOUT = 1
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def __init__(
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self,
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*,
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transport: BaseTransport,
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) -> None:
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"""Create a protocol object."""
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super().__init__(transport=transport)
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self._query_lock = asyncio.Lock()
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async def query(self, request: Union[str, Dict], retry_count: int = 3) -> Dict:
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"""Query the device retrying for retry_count on failure."""
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if isinstance(request, dict):
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request = json_dumps(request)
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assert isinstance(request, str) # noqa: S101
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async with self._query_lock:
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return await self._query(request, retry_count)
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async def _query(self, request: str, retry_count: int = 3) -> Dict:
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for retry in range(retry_count + 1):
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try:
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return await self._execute_query(request, retry)
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except ConnectionException as sdex:
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if retry >= retry_count:
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_LOGGER.debug("Giving up on %s after %s retries", self._host, retry)
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raise sdex
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continue
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except AuthenticationException as auex:
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await self._transport.reset()
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_LOGGER.debug(
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"Unable to authenticate with %s, not retrying", self._host
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)
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raise auex
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except RetryableException as ex:
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await self._transport.reset()
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if retry >= retry_count:
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_LOGGER.debug("Giving up on %s after %s retries", self._host, retry)
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raise ex
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continue
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except TimeoutException as ex:
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await self._transport.reset()
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if retry >= retry_count:
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_LOGGER.debug("Giving up on %s after %s retries", self._host, retry)
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raise ex
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await asyncio.sleep(self.BACKOFF_SECONDS_AFTER_TIMEOUT)
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continue
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except SmartDeviceException as ex:
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await self._transport.reset()
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_LOGGER.debug(
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"Unable to query the device: %s, not retrying: %s",
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self._host,
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ex,
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)
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raise ex
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# make mypy happy, this should never be reached..
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raise SmartDeviceException("Query reached somehow to unreachable")
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async def _execute_query(self, request: str, retry_count: int) -> Dict:
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return await self._transport.send(request)
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async def close(self) -> None:
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"""Close the underlying transport."""
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await self._transport.close()
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