Restrict namespaces to paid plans due to abuse

server/routers/resource/updateResource.ts

@@ -1,6 +1,6 @@
 import { Request, Response, NextFunction } from "express";
 import { z } from "zod";
-import { db, loginPage } from "@server/db";
+import { db, domainNamespaces, loginPage } from "@server/db";
 import {
     domains,
     Org,
@@ -25,6 +25,7 @@ import { validateAndConstructDomain } from "@server/lib/domainUtils";
 import { build } from "@server/build";
 import { isLicensedOrSubscribed } from "#dynamic/lib/isLicencedOrSubscribed";
 import { tierMatrix } from "@server/lib/billing/tierMatrix";
+import { isSubscribed } from "#dynamic/lib/isSubscribed";
 
 const updateResourceParamsSchema = z.strictObject({
     resourceId: z.string().transform(Number).pipe(z.int().positive())
@@ -318,6 +319,27 @@ async function updateHttpResource(
     if (updateData.domainId) {
         const domainId = updateData.domainId;
 
+        if (
+            build == "saas" &&
+            !isSubscribed(resource.orgId, tierMatrix.domainNamespaces)
+        ) {
+            // check if this domain id is a namespace domain and if so, reject
+            const domain = await db
+                .select()
+                .from(domainNamespaces)
+                .where(eq(domainNamespaces.domainId, domainId))
+                .limit(1);
+
+            if (domain.length > 0) {
+                return next(
+                    createHttpError(
+                        HttpCode.BAD_REQUEST,
+                        "Your current subscription does not support custom domain namespaces. Please upgrade to access this feature."
+                    )
+                );
+            }
+        }
+
         // Validate domain and construct full domain
         const domainResult = await validateAndConstructDomain(
             domainId,
@@ -366,7 +388,7 @@ async function updateHttpResource(
                     );
                 }
             }
-        
+
             if (build != "oss") {
                 const existingLoginPages = await db
                     .select()