mirror of
https://github.com/python-kasa/python-kasa.git
synced 2024-12-22 19:23:34 +00:00
da441bc697
Also updates CI pypy versions to be 3.9 and 3.10 which are the currently [supported versions](https://www.pypy.org/posts/2024/01/pypy-v7315-release.html). Otherwise latest cryptography doesn't ship with pypy3.8 wheels and is unable to build on windows. Also updates the `codecov-action` to v4 which fixed some intermittent uploading errors.
117 lines
3.3 KiB
Python
Executable File
117 lines
3.3 KiB
Python
Executable File
"""Implementation of the TP-Link Smart Home Protocol.
|
|
|
|
Encryption/Decryption methods based on the works of
|
|
Lubomir Stroetmann and Tobias Esser
|
|
|
|
https://www.softscheck.com/en/reverse-engineering-tp-link-hs110/
|
|
https://github.com/softScheck/tplink-smartplug/
|
|
|
|
which are licensed under the Apache License, Version 2.0
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
"""
|
|
|
|
import base64
|
|
import errno
|
|
import hashlib
|
|
import logging
|
|
import struct
|
|
from abc import ABC, abstractmethod
|
|
from typing import Dict, Tuple, Union
|
|
|
|
# When support for cpython older than 3.11 is dropped
|
|
# async_timeout can be replaced with asyncio.timeout
|
|
from .credentials import Credentials
|
|
from .deviceconfig import DeviceConfig
|
|
|
|
_LOGGER = logging.getLogger(__name__)
|
|
_NO_RETRY_ERRORS = {errno.EHOSTDOWN, errno.EHOSTUNREACH, errno.ECONNREFUSED}
|
|
_UNSIGNED_INT_NETWORK_ORDER = struct.Struct(">I")
|
|
|
|
|
|
def md5(payload: bytes) -> bytes:
|
|
"""Return the MD5 hash of the payload."""
|
|
return hashlib.md5(payload).digest() # noqa: S324
|
|
|
|
|
|
class BaseTransport(ABC):
|
|
"""Base class for all TP-Link protocol transports."""
|
|
|
|
DEFAULT_TIMEOUT = 5
|
|
|
|
def __init__(
|
|
self,
|
|
*,
|
|
config: DeviceConfig,
|
|
) -> None:
|
|
"""Create a protocol object."""
|
|
self._config = config
|
|
self._host = config.host
|
|
self._port = config.port_override or self.default_port
|
|
self._credentials = config.credentials
|
|
self._credentials_hash = config.credentials_hash
|
|
self._timeout = config.timeout or self.DEFAULT_TIMEOUT
|
|
|
|
@property
|
|
@abstractmethod
|
|
def default_port(self) -> int:
|
|
"""The default port for the transport."""
|
|
|
|
@property
|
|
@abstractmethod
|
|
def credentials_hash(self) -> str:
|
|
"""The hashed credentials used by the transport."""
|
|
|
|
@abstractmethod
|
|
async def send(self, request: str) -> Dict:
|
|
"""Send a message to the device and return a response."""
|
|
|
|
@abstractmethod
|
|
async def close(self) -> None:
|
|
"""Close the transport. Abstract method to be overriden."""
|
|
|
|
@abstractmethod
|
|
async def reset(self) -> None:
|
|
"""Reset internal state."""
|
|
|
|
|
|
class BaseProtocol(ABC):
|
|
"""Base class for all TP-Link Smart Home communication."""
|
|
|
|
def __init__(
|
|
self,
|
|
*,
|
|
transport: BaseTransport,
|
|
) -> None:
|
|
"""Create a protocol object."""
|
|
self._transport = transport
|
|
|
|
@property
|
|
def _host(self):
|
|
return self._transport._host
|
|
|
|
@property
|
|
def config(self) -> DeviceConfig:
|
|
"""Return the connection parameters the device is using."""
|
|
return self._transport._config
|
|
|
|
@abstractmethod
|
|
async def query(self, request: Union[str, Dict], retry_count: int = 3) -> Dict:
|
|
"""Query the device for the protocol. Abstract method to be overriden."""
|
|
|
|
@abstractmethod
|
|
async def close(self) -> None:
|
|
"""Close the protocol. Abstract method to be overriden."""
|
|
|
|
|
|
def get_default_credentials(tuple: Tuple[str, str]) -> Credentials:
|
|
"""Return decoded default credentials."""
|
|
un = base64.b64decode(tuple[0].encode()).decode()
|
|
pw = base64.b64decode(tuple[1].encode()).decode()
|
|
return Credentials(un, pw)
|
|
|
|
|
|
DEFAULT_CREDENTIALS = {
|
|
"KASA": ("a2FzYUB0cC1saW5rLm5ldA==", "a2FzYVNldHVw"),
|
|
"TAPO": ("dGVzdEB0cC1saW5rLm5ldA==", "dGVzdA=="),
|
|
}
|