@iden3/js-iden3-auth/dist/node/esm/circuits/authV2.js

iden3-auth implementation in JavaScript

import { getDateFromUnixTimestamp } from '@iden3/js-iden3-core';
import { IDOwnershipPubSignals } from '../circuits/ownershipVerifier.js';
import { checkGlobalState, getResolverByID } from '../circuits/common.js';
import { AuthV2PubSignals, byteEncoder } from '@0xpolygonid/js-sdk';
const defaultAuthVerifyOpts = 5 * 60 * 1000; // 5 minutes
export class AuthPubSignalsV2 extends IDOwnershipPubSignals {
    constructor(pubSignals) {
        super();
        this.pubSignals = new AuthV2PubSignals();
        this.pubSignals = this.pubSignals.pubSignalsUnmarshal(byteEncoder.encode(JSON.stringify(pubSignals)));
        this.userId = this.pubSignals.userID;
        this.challenge = this.pubSignals.challenge;
    }
    verifyQuery() {
        throw new Error(`authV2 circuit doesn't support queries`);
    }
    async verifyStates(resolvers, opts) {
        const resolver = getResolverByID(resolvers, this.userId);
        if (!resolver) {
            throw new Error(`resolver not found for id ${this.userId.string()}`);
        }
        const gist = await checkGlobalState(resolver, this.pubSignals.GISTRoot);
        let acceptedStateTransitionDelay = defaultAuthVerifyOpts;
        if (opts?.acceptedStateTransitionDelay) {
            acceptedStateTransitionDelay = opts.acceptedStateTransitionDelay;
        }
        if (!gist.latest) {
            const timeDiff = Date.now() - getDateFromUnixTimestamp(Number(gist.transitionTimestamp)).getTime();
            if (timeDiff > acceptedStateTransitionDelay) {
                throw new Error('global state is outdated');
            }
        }
    }
    verifyIdOwnership(sender, challenge) {
        return super.verifyIdOwnership(sender, challenge);
    }
}