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90 lines
3.8 KiB
Python
90 lines
3.8 KiB
Python
11 months ago
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# -*- coding: utf-8 -*-
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"""
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Copyright (C) 2024 Xiaomi Corporation.
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The ownership and intellectual property rights of Xiaomi Home Assistant
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Integration and related Xiaomi cloud service API interface provided under this
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license, including source code and object code (collectively, "Licensed Work"),
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are owned by Xiaomi. Subject to the terms and conditions of this License, Xiaomi
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hereby grants you a personal, limited, non-exclusive, non-transferable,
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non-sublicensable, and royalty-free license to reproduce, use, modify, and
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distribute the Licensed Work only for your use of Home Assistant for
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non-commercial purposes. For the avoidance of doubt, Xiaomi does not authorize
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you to use the Licensed Work for any other purpose, including but not limited
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to use Licensed Work to develop applications (APP), Web services, and other
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forms of software.
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You may reproduce and distribute copies of the Licensed Work, with or without
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modifications, whether in source or object form, provided that you must give
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any other recipients of the Licensed Work a copy of this License and retain all
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copyright and disclaimers.
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Xiaomi provides the Licensed Work on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied, including, without
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limitation, any warranties, undertakes, or conditions of TITLE, NO ERROR OR
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OMISSION, CONTINUITY, RELIABILITY, NON-INFRINGEMENT, MERCHANTABILITY, or
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FITNESS FOR A PARTICULAR PURPOSE. In any event, you are solely responsible
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for any direct, indirect, special, incidental, or consequential damages or
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losses arising from the use or inability to use the Licensed Work.
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Xiaomi reserves all rights not expressly granted to you in this License.
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Except for the rights expressly granted by Xiaomi under this License, Xiaomi
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does not authorize you in any form to use the trademarks, copyrights, or other
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forms of intellectual property rights of Xiaomi and its affiliates, including,
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without limitation, without obtaining other written permission from Xiaomi, you
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shall not use "Xiaomi", "Mijia" and other words related to Xiaomi or words that
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may make the public associate with Xiaomi in any form to publicize or promote
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the software or hardware devices that use the Licensed Work.
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Xiaomi has the right to immediately terminate all your authorization under this
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License in the event:
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1. You assert patent invalidation, litigation, or other claims against patents
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or other intellectual property rights of Xiaomi or its affiliates; or,
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2. You make, have made, manufacture, sell, or offer to sell products that knock
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off Xiaomi or its affiliates' products.
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Common utilities.
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"""
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import json
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import random
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from typing import Optional
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import hashlib
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from paho.mqtt.client import MQTTMatcher
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def calc_group_id(uid: str, home_id: str) -> str:
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"""Calculate the group ID based on a user ID and a home ID."""
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return hashlib.sha1(
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f'{uid}central_service{home_id}'.encode('utf-8')).hexdigest()[:16]
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def load_json_file(json_file: str) -> dict:
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"""Load a JSON file."""
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with open(json_file, 'r', encoding='utf-8') as f:
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return json.load(f)
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def randomize_int(value: int, ratio: float) -> int:
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"""Randomize an integer value."""
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return int(value * (1 - ratio + random.random()*2*ratio))
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class MIoTMatcher(MQTTMatcher):
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"""MIoT Pub/Sub topic matcher."""
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def iter_all_nodes(self) -> any:
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"""Return an iterator on all nodes with their paths and contents."""
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def rec(node, path):
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# pylint: disable=protected-access
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if node._content:
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yield ('/'.join(path), node._content)
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for part, child in node._children.items():
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yield from rec(child, path + [part])
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return rec(self._root, [])
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def get(self, topic: str) -> Optional[any]:
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try:
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return self[topic]
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except KeyError:
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return None
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