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diff --git a/opendc-web/opendc-web-server/src/main/webui/auth.js b/opendc-web/opendc-web-server/src/main/webui/auth.js
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+/*
+ * Copyright (c) 2021 AtLarge Research
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+import PropTypes from 'prop-types'
+import { Auth0Provider, useAuth0 } from '@auth0/auth0-react'
+import { useEffect } from 'react'
+import { auth } from './config'
+
+/**
+ * Helper function to provide the authentication context in case Auth0 is not
+ * configured and the user is anonymous.
+ */
+function useAnonymousAuth() {
+    return {
+        isAnonymous: true,
+        isAuthenticated: false,
+        isLoading: false,
+        logout: () => {},
+        loginWithRedirect: () => {},
+    }
+}
+
+/**
+ * Determine whether the auth domain is anonymous.
+ */
+function isAnonymousDomain(config) {
+    return !config.domain || config.domain === '%%NEXT_PUBLIC_AUTH0_DOMAIN%%'
+}
+
+/**
+ * Force the user to be authenticated or redirect to the homepage.
+ */
+function useRequireAuth0() {
+    const auth = useAuth0()
+    const { loginWithRedirect, isLoading, isAuthenticated } = auth
+
+    useEffect(() => {
+        if (!isLoading && !isAuthenticated) {
+            loginWithRedirect()
+        }
+    }, [loginWithRedirect, isLoading, isAuthenticated])
+}
+
+/**
+ * Obtain the authentication context.
+ */
+export const useAuth = isAnonymousDomain(auth) ? useAnonymousAuth : useAuth0
+
+/**
+ * Force the user to be authenticated or redirect to the homepage.
+ */
+export const useRequireAuth = isAnonymousDomain(auth) ? () => {} : useRequireAuth0
+
+/**
+ * AuthProvider which provides an authentication context.
+ */
+export function AuthProvider({ children }) {
+    const authConfig = auth
+
+    if (!isAnonymousDomain(authConfig)) {
+        return (
+            <Auth0Provider
+                domain={authConfig.domain}
+                clientId={authConfig.clientId}
+                redirectUri={authConfig.redirectUri}
+                audience={authConfig.audience}
+            >
+                {children}
+            </Auth0Provider>
+        )
+    }
+
+    return children
+}
+
+AuthProvider.propTypes = {
+    children: PropTypes.node,
+}