forked from mirrors/gecko-dev
45fb308a44
This class will be used to generate the keys and ephemera necessary to encrypt backups. The actual encryption will occur in a later patch. The state can be serialized and deserialized to disk. Differential Revision: https://phabricator.services.mozilla.com/D210718
45 lines
1.4 KiB
JavaScript
45 lines
1.4 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// This module expects to be able to load in both main-thread module contexts,
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// as well as ChromeWorker contexts. Do not ChromeUtils.importESModule
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// anything there at the top-level that's not compatible with both contexts.
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export const ArchiveUtils = {
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/**
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* Convert an array containing only two bytes unsigned numbers to a base64
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* encoded string.
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*
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* @param {number[]} anArray
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* The array that needs to be converted.
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* @returns {string}
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* The string representation of the array.
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*/
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arrayToBase64(anArray) {
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let result = "";
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let bytes = new Uint8Array(anArray);
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for (let i = 0; i < bytes.length; i++) {
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result += String.fromCharCode(bytes[i]);
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}
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return btoa(result);
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},
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/**
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* Convert a base64 encoded string to an Uint8Array.
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*
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* @param {string} base64Str
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* The base64 encoded string that needs to be converted.
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* @returns {Uint8Array[]}
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* The array representation of the string.
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*/
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stringToArray(base64Str) {
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let binaryStr = atob(base64Str);
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let len = binaryStr.length;
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let bytes = new Uint8Array(len);
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for (let i = 0; i < len; i++) {
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bytes[i] = binaryStr.charCodeAt(i);
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}
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return bytes;
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},
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};
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