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59 lines
1.5 KiB
TypeScript
59 lines
1.5 KiB
TypeScript
// Loaded from https://raw.githubusercontent.com/nats-io/nkeys.js/v1.0.0-7/src/util.ts
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/*
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* Copyright 2018-2020 The NATS Authors
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* Encode binary data to a base64 string
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* @param {Uint8Array} bytes to encode to base64
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*/
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export function encode(bytes: Uint8Array): string {
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return btoa(String.fromCharCode(...bytes));
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}
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/**
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* Decode a base64 encoded string to a binary Uint8Array
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* @param {string} base64 encoded string
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*/
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export function decode(b64str: string) {
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const bin = atob(b64str);
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const bytes = new Uint8Array(bin.length);
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for (let i = 0; i < bin.length; i++) {
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bytes[i] = bin.charCodeAt(i);
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}
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return bytes;
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}
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/**
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* @ignore
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*/
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export function dump(buf: Uint8Array, msg?: string): void {
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if (msg) {
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console.log(msg);
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}
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let a: string[] = [];
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for (let i = 0; i < buf.byteLength; i++) {
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if (i % 8 === 0) {
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a.push("\n");
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}
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let v = buf[i].toString(16);
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if (v.length === 1) {
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v = "0" + v;
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}
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a.push(v);
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}
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console.log(a.join(" "));
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}
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