1 files changed, 65 insertions, 0 deletions
diff --git a/opendc-web/opendc-web-ui/src/auth.js b/opendc-web/opendc-web-ui/src/auth.js
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+++ b/opendc-web/opendc-web-ui/src/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 { Auth0Provider, useAuth0 } from '@auth0/auth0-react'
+import { useEffect } from 'react'
+import { useRouter } from 'next/router'
+
+/**
+ * Obtain the authentication context.
+ */
+export function useAuth() {
+    return useAuth0()
+}
+
+/**
+ * Force the user to be authenticated or redirect to the homepage.
+ */
+export function useRequireAuth() {
+    const auth = useAuth()
+    const router = useRouter()
+    const { isLoading, isAuthenticated } = auth
+
+    useEffect(() => {
+        if (!isLoading && !isAuthenticated) {
+            router.replace('/')
+        }
+    }, [isLoading, isAuthenticated])
+
+    return auth
+}
+
+/**
+ * AuthProvider which provides an authentication context.
+ */
+export function AuthProvider({ children }) {
+    return (
+        <Auth0Provider
+            domain={process.env.NEXT_PUBLIC_AUTH0_DOMAIN}
+            clientId={process.env.NEXT_PUBLIC_AUTH0_CLIENT_ID}
+            redirectUri={global.window && global.window.location.origin}
+            audience={process.env.NEXT_PUBLIC_AUTH0_AUDIENCE}
+        >
+            {children}
+        </Auth0Provider>
+    )
+}