feat: allow or block an ip/range of ips using labels (#211)

* feat: allow or block an ip/range of ips using labels

* refactor: redirect to root page when no username or ip is provided in the unauthorized page

frontend/src/pages/unauthorized-page.tsx

@@ -17,8 +17,9 @@ export const UnauthorizedPage = () => {
   const username = searchParams.get("username");
   const resource = searchParams.get("resource");
   const groupErr = searchParams.get("groupErr");
+  const ip = searchParams.get("ip");
 
-  if (!username) {
+  if (!username && !ip) {
     return <Navigate to="/" />;
   }
 
@@ -41,6 +42,10 @@ export const UnauthorizedPage = () => {
     i18nKey = "unauthorizedGroupsSubtitle";
   }
 
+  if (ip) {
+    i18nKey = "unauthorizedIpSubtitle";
+  }
+
   return (
     <Card className="min-w-xs sm:min-w-sm">
       <CardHeader>
@@ -55,6 +60,7 @@ export const UnauthorizedPage = () => {
             values={{
               username,
               resource,
+              ip,
             }}
           />
         </CardDescription>