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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31 lines
941 B
31 lines
941 B
/** |
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* Copyright (c) 2015-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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* @providesModule binaryToBase64 |
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* @flow |
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*/ |
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'use strict'; |
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/* $FlowFixMe(>=0.54.0 site=react_native_oss) This comment suppresses an error |
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* found when Flow v0.54 was deployed. To see the error delete this comment and |
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* run Flow. */ |
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const base64 = require('base64-js'); |
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function binaryToBase64(data: ArrayBuffer | $ArrayBufferView) { |
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if (data instanceof ArrayBuffer) { |
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data = new Uint8Array(data); |
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} |
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if (data instanceof Uint8Array) { |
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return base64.fromByteArray(data); |
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} |
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if (!ArrayBuffer.isView(data)) { |
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throw new Error('data must be ArrayBuffer or typed array'); |
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} |
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const {buffer, byteOffset, byteLength} = data; |
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return base64.fromByteArray(new Uint8Array(buffer, byteOffset, byteLength)); |
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} |
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module.exports = binaryToBase64;
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