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forked from mirror/misskey
mi.moris.day/packages/backend/src/misc/id/aid.ts
syuilo d071d18dd7
refactor: Use ESM (#8358)
* wip

* wip

* fix

* clean up

* Update tsconfig.json

* Update activitypub.ts

* wip
2022-02-27 11:07:39 +09:00

26 lines
651 B
TypeScript

// AID
// 長さ8の[2000年1月1日からの経過ミリ秒をbase36でエンコードしたもの] + 長さ2の[ノイズ文字列]
import * as crypto from 'node:crypto';
const TIME2000 = 946684800000;
let counter = crypto.randomBytes(2).readUInt16LE(0);
function getTime(time: number) {
time = time - TIME2000;
if (time < 0) time = 0;
return time.toString(36).padStart(8, '0');
}
function getNoise() {
return counter.toString(36).padStart(2, '0').slice(-2);
}
export function genAid(date: Date): string {
const t = date.getTime();
if (isNaN(t)) throw 'Failed to create AID: Invalid Date';
counter++;
return getTime(t) + getNoise();
}