mirror of
https://github.com/retspen/webvirtcloud
synced 2024-12-26 16:15:25 +00:00
114 lines
No EOL
4.7 KiB
JavaScript
Executable file
114 lines
No EOL
4.7 KiB
JavaScript
Executable file
'use strict';
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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var _logging = require('./util/logging.js');
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var Log = _interopRequireWildcard(_logging);
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function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
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exports.default = {
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/* Convert data (an array of integers) to a Base64 string. */
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toBase64Table: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='.split(''),
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base64Pad: '=',
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encode: function (data) {
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"use strict";
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var result = '';
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var toBase64Table = this.toBase64Table;
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var length = data.length;
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var lengthpad = length % 3;
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// Convert every three bytes to 4 ascii characters.
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for (var i = 0; i < length - 2; i += 3) {
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result += toBase64Table[data[i] >> 2];
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result += toBase64Table[((data[i] & 0x03) << 4) + (data[i + 1] >> 4)];
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result += toBase64Table[((data[i + 1] & 0x0f) << 2) + (data[i + 2] >> 6)];
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result += toBase64Table[data[i + 2] & 0x3f];
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}
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// Convert the remaining 1 or 2 bytes, pad out to 4 characters.
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var j = 0;
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if (lengthpad === 2) {
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j = length - lengthpad;
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result += toBase64Table[data[j] >> 2];
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result += toBase64Table[((data[j] & 0x03) << 4) + (data[j + 1] >> 4)];
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result += toBase64Table[(data[j + 1] & 0x0f) << 2];
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result += toBase64Table[64];
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} else if (lengthpad === 1) {
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j = length - lengthpad;
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result += toBase64Table[data[j] >> 2];
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result += toBase64Table[(data[j] & 0x03) << 4];
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result += toBase64Table[64];
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result += toBase64Table[64];
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}
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return result;
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},
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/* Convert Base64 data to a string */
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toBinaryTable: [-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, 0, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1],
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decode: function (data, offset) {
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"use strict";
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offset = typeof offset !== 'undefined' ? offset : 0;
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var toBinaryTable = this.toBinaryTable;
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var base64Pad = this.base64Pad;
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var result, result_length;
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var leftbits = 0; // number of bits decoded, but yet to be appended
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var leftdata = 0; // bits decoded, but yet to be appended
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var data_length = data.indexOf('=') - offset;
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if (data_length < 0) {
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data_length = data.length - offset;
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}
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/* Every four characters is 3 resulting numbers */
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result_length = (data_length >> 2) * 3 + Math.floor(data_length % 4 / 1.5);
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result = new Array(result_length);
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// Convert one by one.
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for (var idx = 0, i = offset; i < data.length; i++) {
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var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
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var padding = data.charAt(i) === base64Pad;
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// Skip illegal characters and whitespace
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if (c === -1) {
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Log.Error("Illegal character code " + data.charCodeAt(i) + " at position " + i);
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continue;
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}
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// Collect data into leftdata, update bitcount
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leftdata = leftdata << 6 | c;
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leftbits += 6;
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// If we have 8 or more bits, append 8 bits to the result
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if (leftbits >= 8) {
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leftbits -= 8;
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// Append if not padding.
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if (!padding) {
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result[idx++] = leftdata >> leftbits & 0xff;
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}
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leftdata &= (1 << leftbits) - 1;
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}
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}
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// If there are any bits left, the base64 string was corrupted
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if (leftbits) {
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err = new Error('Corrupted base64 string');
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err.name = 'Base64-Error';
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throw err;
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}
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return result;
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}
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}; /* End of Base64 namespace */
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/* 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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// From: http://hg.mozilla.org/mozilla-central/raw-file/ec10630b1a54/js/src/devtools/jint/sunspider/string-base64.js
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