| 1 | "use strict";
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | exports.BASE_UUID = void 0;
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| 4 | exports.generate = generate;
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| 5 | exports.isValid = isValid;
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| 6 | exports.unparse = unparse;
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| 7 | exports.write = write;
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| 8 | exports.toShortForm = toShortForm;
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| 9 | exports.toLongForm = toLongForm;
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| 10 | const tslib_1 = require("tslib");
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| 11 | const crypto_1 = tslib_1.__importDefault(require("crypto"));
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| 12 | exports.BASE_UUID = "-0000-1000-8000-0026BB765291";
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| 13 |
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| 14 | function generate(data) {
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| 15 | const sha1sum = crypto_1.default.createHash("sha1");
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| 16 | sha1sum.update(data);
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| 17 | const s = sha1sum.digest("hex");
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| 18 | let i = -1;
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| 19 | return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, (c) => {
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| 20 | i += 1;
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| 21 | switch (c) {
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| 22 | case "y":
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| 23 | return ((parseInt("0x" + s[i], 16) & 0x3) | 0x8).toString(16);
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| 24 | case "x":
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| 25 | default:
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| 26 | return s[i];
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| 27 | }
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| 28 | });
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| 29 | }
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| 30 | const VALID_UUID_REGEX = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;
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| 31 | function isValid(UUID) {
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| 32 | return VALID_UUID_REGEX.test(UUID);
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| 33 | }
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| 34 | function unparse(buf, offset = 0) {
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| 35 | let i = offset;
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| 36 | return buf.toString("hex", i, (i += 4)) + "-" +
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| 37 | buf.toString("hex", i, (i += 2)) + "-" +
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| 38 | buf.toString("hex", i, (i += 2)) + "-" +
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| 39 | buf.toString("hex", i, (i += 2)) + "-" +
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| 40 | buf.toString("hex", i, i + 6);
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| 41 | }
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| 42 | function write(uuid, buf, offset = 0) {
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| 43 | const buffer = Buffer.from(uuid.replace(/-/g, ""), "hex");
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| 44 | if (buf) {
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| 45 | buffer.copy(buf, offset);
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| 46 | return buf;
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| 47 | }
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| 48 | else {
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| 49 | return buffer;
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| 50 | }
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| 51 | }
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| 52 | const SHORT_FORM_REGEX = /^0*([0-9a-f]{1,8})-([0-9a-f]{4}-){3}[0-9a-f]{12}$/i;
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| 53 | function toShortForm(uuid, base = exports.BASE_UUID) {
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| 54 | if (!isValid(uuid)) {
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| 55 | throw new TypeError("uuid was not a valid UUID or short form UUID");
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| 56 | }
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| 57 | if (base && !isValid("00000000" + base)) {
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| 58 | throw new TypeError("base was not a valid base UUID");
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| 59 | }
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| 60 | if (base && !uuid.endsWith(base)) {
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| 61 | return uuid.toUpperCase();
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| 62 | }
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| 63 | return uuid.replace(SHORT_FORM_REGEX, "$1").toUpperCase();
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| 64 | }
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| 65 | const VALID_SHORT_REGEX = /^[0-9a-f]{1,8}$/i;
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| 66 | function toLongForm(uuid, base = exports.BASE_UUID) {
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| 67 | if (isValid(uuid)) {
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| 68 | return uuid.toUpperCase();
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| 69 | }
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| 70 | if (!VALID_SHORT_REGEX.test(uuid)) {
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| 71 | throw new TypeError("uuid was not a valid UUID or short form UUID");
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| 72 | }
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| 73 | if (!isValid("00000000" + base)) {
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| 74 | throw new TypeError("base was not a valid base UUID");
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| 75 | }
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| 76 | return (("00000000" + uuid).substr(-8) + base).toUpperCase();
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| 77 | }
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| 78 | |
| \ | No newline at end of file |