68 lines
2.1 KiB
JavaScript
68 lines
2.1 KiB
JavaScript
"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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/*
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* The `chars`, `lookup`, and `decodeFromBase64` members of this file are
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* licensed under the following:
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*
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* base64-arraybuffer
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* https://github.com/niklasvh/base64-arraybuffer
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*
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* Copyright (c) 2012 Niklas von Hertzen
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* Licensed under the MIT license.
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*
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*/
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var pako_1 = __importDefault(require("pako"));
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var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
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// Use a lookup table to find the index.
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var lookup = new Uint8Array(256);
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for (var i = 0; i < chars.length; i++) {
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lookup[chars.charCodeAt(i)] = i;
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}
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exports.decodeFromBase64 = function (base64) {
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var bufferLength = base64.length * 0.75;
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var len = base64.length;
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var i;
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var p = 0;
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var encoded1;
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var encoded2;
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var encoded3;
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var encoded4;
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if (base64[base64.length - 1] === '=') {
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bufferLength--;
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if (base64[base64.length - 2] === '=') {
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bufferLength--;
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}
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}
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var bytes = new Uint8Array(bufferLength);
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for (i = 0; i < len; i += 4) {
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encoded1 = lookup[base64.charCodeAt(i)];
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encoded2 = lookup[base64.charCodeAt(i + 1)];
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encoded3 = lookup[base64.charCodeAt(i + 2)];
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encoded4 = lookup[base64.charCodeAt(i + 3)];
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bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
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bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
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bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
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}
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return bytes;
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};
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var arrayToString = function (array) {
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var str = '';
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for (var i = 0; i < array.length; i++) {
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str += String.fromCharCode(array[i]);
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}
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return str;
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};
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exports.decompressJson = function (compressedJson) {
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return arrayToString(pako_1.default.inflate(exports.decodeFromBase64(compressedJson)));
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};
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exports.padStart = function (value, length, padChar) {
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var padding = '';
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for (var idx = 0, len = length - value.length; idx < len; idx++) {
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padding += padChar;
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}
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return padding + value;
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};
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