1 | import stringify from './stringify.js';
|
---|
2 | import parse from './parse.js';
|
---|
3 |
|
---|
4 | function stringToBytes(str) {
|
---|
5 | str = unescape(encodeURIComponent(str)); // UTF8 escape
|
---|
6 |
|
---|
7 | var bytes = [];
|
---|
8 |
|
---|
9 | for (var i = 0; i < str.length; ++i) {
|
---|
10 | bytes.push(str.charCodeAt(i));
|
---|
11 | }
|
---|
12 |
|
---|
13 | return bytes;
|
---|
14 | }
|
---|
15 |
|
---|
16 | export var DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8';
|
---|
17 | export var URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8';
|
---|
18 | export default function (name, version, hashfunc) {
|
---|
19 | function generateUUID(value, namespace, buf, offset) {
|
---|
20 | if (typeof value === 'string') {
|
---|
21 | value = stringToBytes(value);
|
---|
22 | }
|
---|
23 |
|
---|
24 | if (typeof namespace === 'string') {
|
---|
25 | namespace = parse(namespace);
|
---|
26 | }
|
---|
27 |
|
---|
28 | if (namespace.length !== 16) {
|
---|
29 | throw TypeError('Namespace must be array-like (16 iterable integer values, 0-255)');
|
---|
30 | } // Compute hash of namespace and value, Per 4.3
|
---|
31 | // Future: Use spread syntax when supported on all platforms, e.g. `bytes =
|
---|
32 | // hashfunc([...namespace, ... value])`
|
---|
33 |
|
---|
34 |
|
---|
35 | var bytes = new Uint8Array(16 + value.length);
|
---|
36 | bytes.set(namespace);
|
---|
37 | bytes.set(value, namespace.length);
|
---|
38 | bytes = hashfunc(bytes);
|
---|
39 | bytes[6] = bytes[6] & 0x0f | version;
|
---|
40 | bytes[8] = bytes[8] & 0x3f | 0x80;
|
---|
41 |
|
---|
42 | if (buf) {
|
---|
43 | offset = offset || 0;
|
---|
44 |
|
---|
45 | for (var i = 0; i < 16; ++i) {
|
---|
46 | buf[offset + i] = bytes[i];
|
---|
47 | }
|
---|
48 |
|
---|
49 | return buf;
|
---|
50 | }
|
---|
51 |
|
---|
52 | return stringify(bytes);
|
---|
53 | } // Function#name is not settable on some platforms (#270)
|
---|
54 |
|
---|
55 |
|
---|
56 | try {
|
---|
57 | generateUUID.name = name; // eslint-disable-next-line no-empty
|
---|
58 | } catch (err) {} // For CommonJS default export support
|
---|
59 |
|
---|
60 |
|
---|
61 | generateUUID.DNS = DNS;
|
---|
62 | generateUUID.URL = URL;
|
---|
63 | return generateUUID;
|
---|
64 | } |
---|