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working on multi-platform support
working on multi-platform support
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r48:2ef1241803ee di-typescript
r48:2ef1241803ee di-typescript
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Uuid.ts
269 lines | 7.6 KiB | video/mp2t | TypeScriptLexer
/ src / ts / Uuid.ts
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cin
core/Uuid rewritten in typescript
 r8 // Typescript port of the uuid.js
// Copyright (c) 2018 Sergey Smirnov
// BSD-2-Clause License https://opensource.org/licenses/BSD-2-Clause
//
// uuid.js
// Copyright (c) 2010-2012 Robert Kieffer
// MIT License - http://opensource.org/licenses/mit-license.php
cin
working on multi-platform support
 r48 declare const window: any;
declare const require;
declare const Buffer;
cin
Async operation cancellation proposal...
 r9
cin
ts code cleanup, linting
 r39 const _window: any = "undefined" !== typeof window ? window : null;
cin
core/Uuid rewritten in typescript
 r8
// Unique ID creation requires a high quality random # generator. We
// feature
// detect to determine the best RNG source, normalizing to a function
// that
// returns 128-bits of randomness, since that's what's usually required
let _rng;
function setupBrowser() {
// Allow for MSIE11 msCrypto
cin
ts code cleanup, linting
 r39 const _crypto = _window.crypto || _window.msCrypto;
cin
core/Uuid rewritten in typescript
 r8
if (!_rng && _crypto && _crypto.getRandomValues) {
// WHATWG crypto-based RNG - http://wiki.whatwg.org/wiki/Crypto
//
// Moderately fast, high quality
try {
cin
ts code cleanup, linting
 r39 const _rnds8 = new Uint8Array(16);
cin
core/Uuid rewritten in typescript
 r8 _rng = function whatwgRNG() {
_crypto.getRandomValues(_rnds8);
return _rnds8;
};
_rng();
} catch (e) { /**/ }
}
if (!_rng) {
// Math.random()-based (RNG)
//
// If all else fails, use Math.random(). It's fast, but is of
// unspecified
// quality.
cin
ts code cleanup, linting
 r39 const _rnds = new Array(16);
_rng = () => {
for (let i = 0, r; i < 16; i++) {
cin
core/Uuid rewritten in typescript
 r8 if ((i & 0x03) === 0) {
r = Math.random() * 0x100000000;
}
_rnds[i] = r >>> ((i & 0x03) << 3) & 0xff;
}
return _rnds;
};
cin
ts code cleanup, linting
 r39 if ("undefined" !== typeof console && console.warn) {
cin
core/Uuid rewritten in typescript
 r8 console.warn("[SECURITY] node-uuid: crypto not usable, falling back to insecure Math.random()");
}
}
}
function setupNode() {
// Node.js crypto-based RNG -
// http://nodejs.org/docs/v0.6.2/api/crypto.html
//
// Moderately fast, high quality
cin
ts code cleanup, linting
 r39 if ("function" === typeof require) {
cin
core/Uuid rewritten in typescript
 r8 try {
cin
ts code cleanup, linting
 r39 const _rb = require("crypto").randomBytes;
_rng = _rb && (() => _rb(16));
cin
core/Uuid rewritten in typescript
 r8 _rng();
} catch (e) { /**/ }
}
}
if (_window) {
setupBrowser();
} else {
setupNode();
}
// Buffer class to use
cin
ts code cleanup, linting
 r39 const BufferClass = ("function" === typeof Buffer) ? Buffer : Array;
cin
core/Uuid rewritten in typescript
 r8
// Maps for number <-> hex string conversion
cin
ts code cleanup, linting
 r39 const _byteToHex = [];
const _hexToByte = {};
cin
core/Uuid rewritten in typescript
 r8 for (let i = 0; i < 256; i++) {
_byteToHex[i] = (i + 0x100).toString(16).substr(1);
_hexToByte[_byteToHex[i]] = i;
}
// **`parse()` - Parse a UUID into it's component bytes**
cin
ts code cleanup, linting
 r39 export function _parse(s, buf?, offset?): Array<string> {
const i = (buf && offset) || 0; let ii = 0;
cin
core/Uuid rewritten in typescript
 r8
buf = buf || [];
cin
ts code cleanup, linting
 r39 s.toLowerCase().replace(/[0-9a-f]{2}/g, oct => {
cin
core/Uuid rewritten in typescript
 r8 if (ii < 16) { // Don't overflow!
buf[i + ii++] = _hexToByte[oct];
}
});
// Zero out remaining bytes if string was short
while (ii < 16) {
buf[i + ii++] = 0;
}
return buf;
}
// **`unparse()` - Convert UUID byte array (ala parse()) into a string**
cin
minor fixes, code cleanup...
 r33 function _unparse(buf, offset?): string {
cin
ts code cleanup, linting
 r39 let i = offset || 0; const bth = _byteToHex;
cin
core/Uuid rewritten in typescript
 r8 return bth[buf[i++]] + bth[buf[i++]] + bth[buf[i++]] +
cin
ts code cleanup, linting
 r39 bth[buf[i++]] + "-" + bth[buf[i++]] + bth[buf[i++]] + "-" +
bth[buf[i++]] + bth[buf[i++]] + "-" + bth[buf[i++]] +
bth[buf[i++]] + "-" + bth[buf[i++]] + bth[buf[i++]] +
cin
core/Uuid rewritten in typescript
 r8 bth[buf[i++]] + bth[buf[i++]] + bth[buf[i++]] + bth[buf[i++]];
}
// **`v1()` - Generate time-based UUID**
//
// Inspired by https://github.com/LiosK/UUID.js
// and http://docs.python.org/library/uuid.html
// random #'s we need to init node and clockseq
cin
ts code cleanup, linting
 r39 const _seedBytes = _rng();
cin
core/Uuid rewritten in typescript
 r8
// Per 4.5, create and 48-bit node id, (47 random bits + multicast bit =
// 1)
cin
ts code cleanup, linting
 r39 const _nodeId = [
cin
core/Uuid rewritten in typescript
 r8 _seedBytes[0] | 0x01,
_seedBytes[1],
_seedBytes[2],
_seedBytes[3],
_seedBytes[4],
_seedBytes[5]
];
// Per 4.2.2, randomize (14 bit) clockseq
let _clockseq = (_seedBytes[6] << 8 | _seedBytes[7]) & 0x3fff;
// Previous uuid creation time
cin
ts code cleanup, linting
 r39 let _lastMSecs = 0; let _lastNSecs = 0;
cin
core/Uuid rewritten in typescript
 r8
// See https://github.com/broofa/node-uuid for API details
cin
ts code cleanup, linting
 r39 export function _v1(options?, buf?, offset?): string {
cin
core/Uuid rewritten in typescript
 r8 let i = buf && offset || 0;
cin
ts code cleanup, linting
 r39 const b = buf || [];
cin
core/Uuid rewritten in typescript
 r8
options = options || {};
let clockseq = (options.clockseq != null) ? options.clockseq : _clockseq;
// UUID timestamps are 100 nano-second units since the Gregorian
// epoch,
// (1582-10-15 00:00). JSNumbers aren't precise enough for this, so
// time is handled internally as 'msecs' (integer milliseconds) and
// 'nsecs'
// (100-nanoseconds offset from msecs) since unix epoch, 1970-01-01
// 00:00.
let msecs = (options.msecs != null) ? options.msecs : new Date()
.getTime();
// Per 4.2.1.2, use count of uuid's generated during the current
// clock
// cycle to simulate higher resolution clock
let nsecs = (options.nsecs != null) ? options.nsecs : _lastNSecs + 1;
// Time since last uuid creation (in msecs)
cin
ts code cleanup, linting
 r39 const dt = (msecs - _lastMSecs) + (nsecs - _lastNSecs) / 10000;
cin
core/Uuid rewritten in typescript
 r8
// Per 4.2.1.2, Bump clockseq on clock regression
if (dt < 0 && options.clockseq == null) {
clockseq = clockseq + 1 & 0x3fff;
}
// Reset nsecs if clock regresses (new clockseq) or we've moved onto
// a new
// time interval
if ((dt < 0 || msecs > _lastMSecs) && options.nsecs == null) {
nsecs = 0;
}
// Per 4.2.1.2 Throw error if too many uuids are requested
if (nsecs >= 10000) {
throw new Error(
cin
ts code cleanup, linting
 r39 "uuid.v1(): Can't create more than 10M uuids/sec");
cin
core/Uuid rewritten in typescript
 r8 }
_lastMSecs = msecs;
_lastNSecs = nsecs;
_clockseq = clockseq;
// Per 4.1.4 - Convert from unix epoch to Gregorian epoch
msecs += 12219292800000;
// `time_low`
cin
ts code cleanup, linting
 r39 const tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000;
cin
core/Uuid rewritten in typescript
 r8 b[i++] = tl >>> 24 & 0xff;
b[i++] = tl >>> 16 & 0xff;
b[i++] = tl >>> 8 & 0xff;
b[i++] = tl & 0xff;
// `time_mid`
cin
ts code cleanup, linting
 r39 const tmh = (msecs / 0x100000000 * 10000) & 0xfffffff;
cin
core/Uuid rewritten in typescript
 r8 b[i++] = tmh >>> 8 & 0xff;
b[i++] = tmh & 0xff;
// `time_high_and_version`
b[i++] = tmh >>> 24 & 0xf | 0x10; // include version
b[i++] = tmh >>> 16 & 0xff;
// `clock_seq_hi_and_reserved` (Per 4.2.2 - include variant)
b[i++] = clockseq >>> 8 | 0x80;
// `clock_seq_low`
b[i++] = clockseq & 0xff;
// `node`
cin
ts code cleanup, linting
 r39 const node = options.node || _nodeId;
cin
core/Uuid rewritten in typescript
 r8 for (let n = 0; n < 6; n++) {
b[i + n] = node[n];
}
cin
minor fixes, code cleanup...
 r33 return buf ? buf : _unparse(b);
cin
core/Uuid rewritten in typescript
 r8 }
// **`v4()` - Generate random UUID**
// See https://github.com/broofa/node-uuid for API details
cin
ts code cleanup, linting
 r39 export function _v4(options?, buf?, offset?): string {
cin
core/Uuid rewritten in typescript
 r8 // Deprecated - 'format' argument, as supported in v1.2
cin
ts code cleanup, linting
 r39 const i = buf && offset || 0;
cin
core/Uuid rewritten in typescript
 r8
cin
ts code cleanup, linting
 r39 if (typeof (options) === "string") {
buf = (options === "binary") ? new BufferClass(16) : null;
cin
core/Uuid rewritten in typescript
 r8 options = null;
}
options = options || {};
cin
ts code cleanup, linting
 r39 const rnds = options.random || (options.rng || _rng)();
cin
core/Uuid rewritten in typescript
 r8
// Per 4.4, set bits for version and `clock_seq_hi_and_reserved`
rnds[6] = (rnds[6] & 0x0f) | 0x40;
rnds[8] = (rnds[8] & 0x3f) | 0x80;
// Copy bytes to buffer, if provided
if (buf) {
for (let ii = 0; ii < 16; ii++) {
buf[i + ii] = rnds[ii];
}
}
cin
minor fixes, code cleanup...
 r33 return buf || _unparse(rnds);
}
export function Uuid() {
cin
ported IoC container to typescript...
 r34 return _v4();
cin
core/Uuid rewritten in typescript
 r8 }
cin
minor fixes, code cleanup...
 r33 export namespace Uuid {
export const v4 = _v4;
export const v1 = _v1;
export const empty = "00000000-0000-0000-0000-000000000000";
export const parse = _parse;
cin
ts code cleanup, linting
 r39 }