69 lines
1.4 KiB
JavaScript
69 lines
1.4 KiB
JavaScript
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"use strict";
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// CommonJS shim for Pulsar/Atom (compile-cache) which cannot load ESM-only
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// uuid versions. This package is used in the Jibo SDK as `require('uuid').v4()`.
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var crypto;
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try {
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crypto = require("crypto");
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} catch (e) {
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crypto = null;
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}
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function randomBytes(size) {
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if (crypto && typeof crypto.randomBytes === "function") {
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return crypto.randomBytes(size);
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}
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// Extremely small fallback (should rarely be used).
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var buf = Buffer.alloc(size);
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for (var i = 0; i < size; i++) {
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buf[i] = (Math.random() * 256) | 0;
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}
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return buf;
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}
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function byteToHex(byte) {
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return (byte + 0x100).toString(16).slice(1);
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}
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function unsafeV4() {
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var bytes = randomBytes(16);
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// Per RFC 4122 / RFC 9562: set version 4 and variant.
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bytes[6] = (bytes[6] & 0x0f) | 0x40;
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bytes[8] = (bytes[8] & 0x3f) | 0x80;
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// Format 8-4-4-4-12
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return (
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byteToHex(bytes[0]) +
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byteToHex(bytes[1]) +
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byteToHex(bytes[2]) +
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byteToHex(bytes[3]) +
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"-" +
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byteToHex(bytes[4]) +
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byteToHex(bytes[5]) +
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"-" +
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byteToHex(bytes[6]) +
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byteToHex(bytes[7]) +
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"-" +
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byteToHex(bytes[8]) +
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byteToHex(bytes[9]) +
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"-" +
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byteToHex(bytes[10]) +
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byteToHex(bytes[11]) +
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byteToHex(bytes[12]) +
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byteToHex(bytes[13]) +
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byteToHex(bytes[14]) +
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byteToHex(bytes[15])
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);
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}
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function v4() {
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return unsafeV4();
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}
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module.exports = {
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v4: v4,
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};
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