@bitblit/ratchet-common/lib/jwt/jwt-payload-expiration-ratchet.js

Common tools for general use

import { Logger } from '../logger/logger.js';
import { DurationRatchet } from '../lang/duration-ratchet.js';
export class JwtPayloadExpirationRatchet {
    static EXPIRED_FLAG_NAME = '__jwtServiceExpiredFlag';
    static processPayloadExpiration(payload, expiredHandling) {
        if (payload) {
            const nowSeconds = Math.floor(Date.now() / 1000);
            const expSeconds = payload?.exp && payload.exp > nowSeconds * 100 ? Math.floor(payload.exp / 1000) : payload?.exp;
            const nbfSeconds = payload?.nbf && payload.nbf > nowSeconds * 100 ? Math.floor(payload.nbf / 1000) : payload?.nbf;
            if ((expSeconds && nowSeconds >= expSeconds) || (nbfSeconds && nowSeconds <= nbfSeconds)) {
                const age = nowSeconds - expSeconds;
                Logger.debug('JWT token expired or before NBF : on %d, %s ago', payload.exp, DurationRatchet.formatMsDuration(age * 1000));
                switch (expiredHandling) {
                    case 1:
                        throw new Error('JWT Token was expired');
                    case 2:
                        payload[JwtPayloadExpirationRatchet.EXPIRED_FLAG_NAME] = true;
                        break;
                    default:
                        payload = null;
                        break;
                }
            }
        }
        return payload;
    }
    static hasExpiredFlag(ob) {
        return ob && ob[JwtPayloadExpirationRatchet.EXPIRED_FLAG_NAME] === true;
    }
    static removeExpiredFlag(ob) {
        if (ob) {
            delete ob[JwtPayloadExpirationRatchet.EXPIRED_FLAG_NAME];
        }
    }
}
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