This app provides monitoring and information features for the common freifunk user and the technical stuff of a freifunk community.
Code base is taken from a TUM Practical Course project and added here to see if Freifunk Altdorf can use it.
https://www.freifunk-altdorf.de
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38 lines
765 B
38 lines
765 B
/** |
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* Copyright (c) 2018-present, Facebook, Inc. |
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* |
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* This source code is licensed under the MIT license found in the |
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* LICENSE file in the root directory of this source tree. |
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* |
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* @flow |
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* @format |
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*/ |
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'use strict'; |
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const crypto = require('crypto'); |
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function canonicalize(key: string, value: mixed): mixed { |
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if (!(value instanceof Object) || value instanceof Array) { |
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return value; |
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} |
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const keys = Object.keys(value).sort(); |
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const length = keys.length; |
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const object = {}; |
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for (let i = 0; i < length; i++) { |
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object[keys[i]] = value[keys[i]]; |
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} |
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return object; |
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} |
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function stableHash(value: mixed) { |
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return crypto |
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.createHash('md4') |
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.update(JSON.stringify(value, canonicalize)) |
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.digest(); |
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} |
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module.exports = stableHash;
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