@kinvolk/headlamp-plugin/lib/stateless/getUserIdFromLocalStorage.js

The needed infrastructure for building Headlamp plugins.

/*
 * Copyright 2025 The Kubernetes Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { generateSecureToken } from '.';
/**
 * In the backend we use a unique ID to identify a user. If there is no ID in localStorage
 * we generate a new one and store it in localStorage. We then combine it with the
 * cluster name and this headlamp-userId to create a unique ID for a cluster. If we don't
 * do it then if 2 different users have a cluster with the same name, then the
 * proxy will be overwritten.
 * @returns headlamp-userId from localStorage
 */
export function getUserIdFromLocalStorage() {
    let headlampUserId = localStorage.getItem('headlamp-userId');
    if (!headlampUserId) {
        headlampUserId = generateSecureToken();
        if (headlampUserId) {
            localStorage.setItem('headlamp-userId', headlampUserId);
        }
    }
    return headlampUserId;
}