1 | import parse from './parse.js';
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2 | import { unsafeStringify } from './stringify.js';
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3 | export function stringToBytes(str) {
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4 | str = unescape(encodeURIComponent(str));
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5 | const bytes = new Uint8Array(str.length);
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6 | for (let i = 0; i < str.length; ++i) {
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7 | bytes[i] = str.charCodeAt(i);
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8 | }
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9 | return bytes;
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10 | }
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11 | export const DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8';
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12 | export const URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8';
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13 | export default function v35(version, hash, value, namespace, buf, offset) {
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14 | const valueBytes = typeof value === 'string' ? stringToBytes(value) : value;
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15 | const namespaceBytes = typeof namespace === 'string' ? parse(namespace) : namespace;
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16 | if (typeof namespace === 'string') {
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17 | namespace = parse(namespace);
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18 | }
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19 | if (namespace?.length !== 16) {
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20 | throw TypeError('Namespace must be array-like (16 iterable integer values, 0-255)');
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21 | }
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22 | let bytes = new Uint8Array(16 + valueBytes.length);
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23 | bytes.set(namespaceBytes);
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24 | bytes.set(valueBytes, namespaceBytes.length);
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25 | bytes = hash(bytes);
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26 | bytes[6] = (bytes[6] & 0x0f) | version;
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27 | bytes[8] = (bytes[8] & 0x3f) | 0x80;
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28 | if (buf) {
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29 | offset = offset || 0;
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30 | for (let i = 0; i < 16; ++i) {
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31 | buf[offset + i] = bytes[i];
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32 | }
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33 | return buf;
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34 | }
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35 | return unsafeStringify(bytes);
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36 | }
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