Basic functionality in place, need improved errors and logged in redirect

server/pages/components/AuthErrors.js

@@ -0,0 +1,32 @@
+// @flow
+import * as React from 'react';
+import Notice from '../../../shared/components/Notice';
+
+type Props = {
+  notice?: string,
+};
+
+export default function AuthErrors({ notice }: Props) {
+  return (
+    <React.Fragment>
+      {notice === 'google-hd' && (
+        <Notice>
+          Sorry, Google sign in cannot be used with a personal email. Please try
+          signing in with your company Google account.
+        </Notice>
+      )}
+      {notice === 'hd-not-allowed' && (
+        <Notice>
+          Sorry, your Google apps domain is not allowed. Please try again with
+          an allowed company domain.
+        </Notice>
+      )}
+      {notice === 'auth-error' && (
+        <Notice>
+          Authentication failed - we were unable to sign you in at this time.
+          Please try again.
+        </Notice>
+      )}
+    </React.Fragment>
+  );
+}