mirror of
https://github.com/python-kasa/python-kasa.git
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114 lines
3.8 KiB
Python
114 lines
3.8 KiB
Python
"""Module for HttpClientSession class."""
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import asyncio
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from typing import Any, Dict, Optional, Tuple, Union
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import aiohttp
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from .deviceconfig import DeviceConfig
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from .exceptions import (
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ConnectionException,
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SmartDeviceException,
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TimeoutException,
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)
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from .json import loads as json_loads
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def get_cookie_jar() -> aiohttp.CookieJar:
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"""Return a new cookie jar with the correct options for device communication."""
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return aiohttp.CookieJar(unsafe=True, quote_cookie=False)
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class HttpClient:
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"""HttpClient Class."""
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def __init__(self, config: DeviceConfig) -> None:
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self._config = config
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self._client_session: aiohttp.ClientSession = None
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self._jar = aiohttp.CookieJar(unsafe=True, quote_cookie=False)
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self._last_url = f"http://{self._config.host}/"
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@property
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def client(self) -> aiohttp.ClientSession:
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"""Return the underlying http client."""
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if self._config.http_client and issubclass(
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self._config.http_client.__class__, aiohttp.ClientSession
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):
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return self._config.http_client
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if not self._client_session:
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self._client_session = aiohttp.ClientSession(cookie_jar=get_cookie_jar())
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return self._client_session
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async def post(
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self,
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url: str,
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*,
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params: Optional[Dict[str, Any]] = None,
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data: Optional[bytes] = None,
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json: Optional[Union[Dict, Any]] = None,
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headers: Optional[Dict[str, str]] = None,
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cookies_dict: Optional[Dict[str, str]] = None,
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) -> Tuple[int, Optional[Union[Dict, bytes]]]:
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"""Send an http post request to the device.
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If the request is provided via the json parameter json will be returned.
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"""
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response_data = None
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self._last_url = url
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self.client.cookie_jar.clear()
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return_json = bool(json)
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# If json is not a dict send as data.
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# This allows the json parameter to be used to pass other
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# types of data such as async_generator and still have json
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# returned.
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if json and not isinstance(json, Dict):
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data = json
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json = None
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try:
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resp = await self.client.post(
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url,
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params=params,
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data=data,
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json=json,
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timeout=self._config.timeout,
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cookies=cookies_dict,
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headers=headers,
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)
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async with resp:
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if resp.status == 200:
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response_data = await resp.read()
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if return_json:
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response_data = json_loads(response_data.decode())
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except (aiohttp.ServerDisconnectedError, aiohttp.ClientOSError) as ex:
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raise ConnectionException(
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f"Device connection error: {self._config.host}: {ex}", ex
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) from ex
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except (aiohttp.ServerTimeoutError, asyncio.TimeoutError) as ex:
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raise TimeoutException(
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"Unable to query the device, "
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+ f"timed out: {self._config.host}: {ex}",
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ex,
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) from ex
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except Exception as ex:
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raise SmartDeviceException(
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f"Unable to query the device: {self._config.host}: {ex}", ex
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) from ex
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return resp.status, response_data
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def get_cookie(self, cookie_name: str) -> Optional[str]:
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"""Return the cookie with cookie_name."""
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if cookie := self.client.cookie_jar.filter_cookies(self._last_url).get(
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cookie_name
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):
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return cookie.value
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return None
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async def close(self) -> None:
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"""Close the ClientSession."""
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client = self._client_session
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self._client_session = None
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if client:
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await client.close()
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