@splitsoftware/splitio-commons/esm/sync/streaming/AuthClient/index.js

Split JavaScript SDK common components

import { objectAssign } from '../../../utils/lang/objectAssign';
import { encodeToBase64 } from '../../../utils/base64';
import { decodeJWTtoken } from '../../../utils/jwt';
import { hash } from '../../../utils/murmur3/murmur3';
/**
 * Factory of authentication function.
 *
 * @param fetchAuth - `SplitAPI.fetchAuth` endpoint
 */
export function authenticateFactory(fetchAuth) {
    /**
     * Run authentication requests to Auth Server, and returns a promise that resolves with the decoded JTW token.
     * @param userKeys - set of user Keys to track membership updates. It is undefined for server-side API.
     */
    return function authenticate(userKeys) {
        return fetchAuth(userKeys)
            .then(function (resp) { return resp.json(); })
            .then(function (json) {
            if (json.token) { // empty token when `"pushEnabled": false`
                var decodedToken = decodeJWTtoken(json.token);
                if (typeof decodedToken.iat !== 'number' || typeof decodedToken.exp !== 'number')
                    throw new Error('token properties "issuedAt" (iat) or "expiration" (exp) are missing or invalid');
                var channels = JSON.parse(decodedToken['x-ably-capability']);
                return objectAssign({
                    decodedToken: decodedToken,
                    channels: channels
                }, json);
            }
            return json;
        });
    };
}
/**
 * Returns the hash of a given user key
 */
export function hashUserKey(userKey) {
    return encodeToBase64(hash(userKey, 0).toString());
}