From dbcc20911e9ec7bed0604c3e35ddcb00565da067 Mon Sep 17 00:00:00 2001
From: Manabu Mccloskey <manabu.mccloskey@gmail.com>
Date: Mon, 2 Oct 2023 11:24:15 -0700
Subject: [PATCH] enable guest auth for local environment

---
 packages/app/src/App.tsx             | 42 +++++++++++++---------
 packages/backend/src/plugins/auth.ts | 52 +++++++++++++++++-----------
 2 files changed, 58 insertions(+), 36 deletions(-)

diff --git a/packages/app/src/App.tsx b/packages/app/src/App.tsx
index e97ca3d..a1f68db 100644
--- a/packages/app/src/App.tsx
+++ b/packages/app/src/App.tsx
@@ -43,24 +43,34 @@ import { KubernetesClusterPickerExtension } from '@cnoe-io/plugin-scaffolder-act
 import { ThemeProvider } from '@material-ui/core/styles';
 import CssBaseline from '@material-ui/core/CssBaseline';
 import LightIcon from '@material-ui/icons/WbSunny';
-import {CNOEHomepage, cnoeLightTheme, cnoeDarkTheme} from '@internal/cnoe-ui-plugin'
+import {
+  CNOEHomepage,
+  cnoeLightTheme,
+  cnoeDarkTheme,
+} from '@internal/cnoe-ui-plugin';
+import { configApiRef, useApi } from '@backstage/core-plugin-api';
 
 const app = createApp({
   apis,
   components: {
-    // SignInPage: (props) => <ProxiedSignInPage {...props} provider="oauth2Proxy" />,
-    SignInPage: props => (
-      <SignInPage
-        {...props}
-        auto
-        provider={{
-          id: 'keycloak-oidc',
-          title: 'Keycloak',
-          message: 'Sign in using Keycloak',
-          apiRef: keycloakOIDCAuthApiRef,
-        }}
-      />
-    ),
+    SignInPage: props => {
+      const configApi = useApi(configApiRef);
+      if (configApi.getString('auth.environment') === 'local') {
+        return <SignInPage {...props} auto providers={['guest']} />;
+      }
+      return (
+        <SignInPage
+          {...props}
+          auto
+          provider={{
+            id: 'keycloak-oidc',
+            title: 'Keycloak',
+            message: 'Sign in using Keycloak',
+            apiRef: keycloakOIDCAuthApiRef,
+          }}
+        />
+      );
+    },
   },
   bindRoutes({ bind }) {
     bind(catalogPlugin.externalRoutes, {
@@ -100,13 +110,13 @@ const app = createApp({
         </ThemeProvider>
       ),
     },
-  ]
+  ],
 });
 
 const routes = (
   <FlatRoutes>
     <Route path="/" element={<Navigate to="home" />} />
-    <Route path="/home" element={<CNOEHomepage/>} />
+    <Route path="/home" element={<CNOEHomepage />} />
     <Route path="/catalog" element={<CatalogIndexPage />} />
     <Route
       path="/catalog/:namespace/:kind/:name"
diff --git a/packages/backend/src/plugins/auth.ts b/packages/backend/src/plugins/auth.ts
index ee7441d..e7287f2 100644
--- a/packages/backend/src/plugins/auth.ts
+++ b/packages/backend/src/plugins/auth.ts
@@ -14,7 +14,7 @@ import { JsonArray } from '@backstage/types';
 export default async function createPlugin(
   env: PluginEnvironment,
 ): Promise<Router> {
-  return await createRouter({
+  const opts = {
     logger: env.logger,
     config: env.config,
     database: env.database,
@@ -22,24 +22,36 @@ export default async function createPlugin(
     tokenManager: env.tokenManager,
     providerFactories: {
       ...defaultAuthProviderFactories,
-      'keycloak-oidc': providers.oidc.create({
-        signIn: {
-          resolver(info, ctx) {
-            const userRef = stringifyEntityRef({
-              kind: 'User',
-              name: info.result.userinfo.sub,
-              namespace: DEFAULT_NAMESPACE,
-            });
-            return ctx.issueToken({
-              claims: {
-                sub: userRef,
-                ent: [userRef],
-                groups: (info.result.userinfo.groups as JsonArray) || [],
-              },
-            });
-          },
-        },
-      }),
     },
-  });
+  };
+
+  const envName = env.config
+    .getOptionalConfig('auth')
+    ?.getOptionalString('auth');
+  if (envName === 'local') {
+    return await createRouter(opts);
+  }
+
+  const keycloakAuth = (opts.providerFactories['keycloak-oidc'] =
+    providers.oidc.create({
+      signIn: {
+        resolver(info, ctx) {
+          const userRef = stringifyEntityRef({
+            kind: 'User',
+            name: info.result.userinfo.sub,
+            namespace: DEFAULT_NAMESPACE,
+          });
+          return ctx.issueToken({
+            claims: {
+              sub: userRef,
+              ent: [userRef],
+              groups: (info.result.userinfo.groups as JsonArray) || [],
+            },
+          });
+        },
+      },
+    }));
+  opts.providerFactories['keycloak-oidc'] = keycloakAuth;
+
+  return await createRouter(opts);
 }