ui: Migrate to Auth0 as Identity Provider

This change updates the frontend codebase to move away from the Google
login and instead use Auth0 as generic Identity Provider. This allows
users to login with other accounts as well.

Since Auth0 has a free tier, users can experiment themselves with OpenDC
locally without having to pay for the login functionality. The code has
been written so that we should be able to migrate away from Auth0 once
it is not a suitable Identity Provider for OpenDC anymore.

3 files changed, 11 insertions, 41 deletions

diff --git a/opendc-web/opendc-web-ui/src/containers/auth/Login.js b/opendc-web/opendc-web-ui/src/containers/auth/Login.js
index b0da0d0e..8459ef5f 100644
--- a/opendc-web/opendc-web-ui/src/containers/auth/Login.js
+++ b/opendc-web/opendc-web-ui/src/containers/auth/Login.js
@@ -1,43 +1,18 @@
 import React from 'react'
-import GoogleLogin from 'react-google-login'
-import { useDispatch } from 'react-redux'
-import { logIn } from '../../redux/actions/auth'
 import { Button } from 'reactstrap'
+import { useAuth } from '../../auth'
 
 function Login({ visible, className }) {
-    const dispatch = useDispatch()
-
-    const onLogin = (payload) => dispatch(logIn(payload))
-    const onAuthResponse = (response) => {
-        onLogin({
-            email: response.getBasicProfile().getEmail(),
-            givenName: response.getBasicProfile().getGivenName(),
-            familyName: response.getBasicProfile().getFamilyName(),
-            googleId: response.googleId,
-            authToken: response.getAuthResponse().id_token,
-            expiresAt: response.getAuthResponse().expires_at,
-        })
-    }
-    const onAuthFailure = (error) => {
-        // TODO Show error alert
-        console.error(error)
-    }
+    const { loginWithRedirect } = useAuth()
 
     if (!visible) {
         return <span />
     }
 
     return (
-        <GoogleLogin
-            clientId={process.env.NEXT_PUBLIC_OAUTH_CLIENT_ID}
-            onSuccess={onAuthResponse}
-            onFailure={onAuthFailure}
-            render={(renderProps) => (
-                <Button color="primary" onClick={renderProps.onClick} className={className}>
-                    <span aria-hidden className="fa fa-google" /> Login with Google
-                </Button>
-            )}
-        />
+        <Button color="primary" onClick={() => loginWithRedirect()} className={className}>
+            <span aria-hidden className="fa fa-sign-in" /> Sign In
+        </Button>
     )
 }
 
diff --git a/opendc-web/opendc-web-ui/src/containers/auth/Logout.js b/opendc-web/opendc-web-ui/src/containers/auth/Logout.js
index 94d4d061..37705c5d 100644
--- a/opendc-web/opendc-web-ui/src/containers/auth/Logout.js
+++ b/opendc-web/opendc-web-ui/src/containers/auth/Logout.js
@@ -1,11 +1,10 @@
 import React from 'react'
-import { useDispatch } from 'react-redux'
-import { logOut } from '../../redux/actions/auth'
 import LogoutButton from '../../components/navigation/LogoutButton'
+import { useAuth } from '../../auth'
 
 const Logout = (props) => {
-    const dispatch = useDispatch()
-    return <LogoutButton {...props} onLogout={() => dispatch(logOut())} />
+    const { logout } = useAuth()
+    return <LogoutButton {...props} onLogout={() => logout({ returnTo: window.location.origin })} />
 }
 
 export default Logout
diff --git a/opendc-web/opendc-web-ui/src/containers/auth/ProfileName.js b/opendc-web/opendc-web-ui/src/containers/auth/ProfileName.js
index 3992c00f..70f5b884 100644
--- a/opendc-web/opendc-web-ui/src/containers/auth/ProfileName.js
+++ b/opendc-web/opendc-web-ui/src/containers/auth/ProfileName.js
@@ -1,13 +1,9 @@
 import React from 'react'
-import { useUser } from '../../auth'
+import { useAuth } from '../../auth'
 
 function ProfileName() {
-    const user = useUser()
-    return (
-        <span>
-            {user.givenName} {user.familyName}
-        </span>
-    )
+    const { isLoading, user } = useAuth()
+    return isLoading ? <span>Loading...</span> : <span>{user.name}</span>
 }
 
 export default ProfileName