fix remote HMAC: match tenant domain only, not shared adminUrl

k.montzar.ir on Gholaktala adminUrl was selecting tenant app.gholaktala.ir. HMAC now uses primary domain (and its subdomain), not admin/app/node URLs.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/auth/remote-sms-auth.guard.ts

@@ -160,7 +160,11 @@ export class RemoteSmsAuthGuard implements CanActivate {
       },
     });
 
-    const hit = findTenantForHost(tenants as TenantHostRow[], normalizedHost);
+    const hit = findTenantForHost(
+      tenants as TenantHostRow[],
+      normalizedHost,
+      'hmac',
+    );
     if (!hit) return null;
 
     return {

src/auth/tenant-host.util.spec.ts

@@ -1,10 +1,10 @@
 import { findTenantForHost, scoreTenantHost } from './tenant-host.util';
 
 const gholak = {
-  domain: 'gholaktala.ir',
+  domain: 'app.gholaktala.ir',
   domains: [],
-  appUrl: 'https://gholaktala.ir',
-  adminUrl: 'https://admin.gholaktala.ir',
+  appUrl: 'https://app.gholaktala.ir',
+  adminUrl: 'https://k.montzar.ir/admin',
   nodeServer: 'https://new.gholaktala.ir/server',
 };
 
@@ -25,22 +25,36 @@ const otherOnSameBox = {
 };
 
 describe('findTenantForHost', () => {
-  const tenants = [montzar, otherOnSameBox, gholak];
+  const tenants = [gholak, otherOnSameBox, montzar];
 
-  it('maps new.gholaktala.ir to gholaktala, not the first shared nodeServer tenant', () => {
-    expect(findTenantForHost(tenants, 'new.gholaktala.ir')?.domain).toBe(
-      'gholaktala.ir',
+  it('hmac does not treat shared adminUrl as gholaktala', () => {
+    expect(scoreTenantHost(gholak, 'k.montzar.ir', 'hmac')).toBe(0);
+    expect(findTenantForHost(tenants, 'k.montzar.ir', 'hmac')?.domain).toBe(
+      'k.montzar.ir',
     );
-    expect(scoreTenantHost(gholak, 'new.gholaktala.ir')).toBe(75);
-    expect(scoreTenantHost(montzar, 'new.gholaktala.ir')).toBe(10);
   });
 
-  it('maps k.montzar.ir to montzar by primary domain', () => {
+  it('hmac without montzar tenant does not fall back to gholak adminUrl', () => {
+    expect(
+      findTenantForHost([gholak, otherOnSameBox], 'k.montzar.ir', 'hmac'),
+    ).toBeUndefined();
+  });
+
+  it('full get_user still maps k.montzar.ir to montzar by primary domain', () => {
     expect(findTenantForHost(tenants, 'k.montzar.ir')?.domain).toBe(
       'k.montzar.ir',
     );
   });
 
+  it('maps new.gholaktala.ir to gholaktala via subdomain, not nodeServer', () => {
+    const gholakBare = { ...gholak, domain: 'gholaktala.ir' };
+    expect(
+      findTenantForHost([montzar, otherOnSameBox, gholakBare], 'new.gholaktala.ir')
+        ?.domain,
+    ).toBe('gholaktala.ir');
+    expect(scoreTenantHost(gholakBare, 'new.gholaktala.ir')).toBe(75);
+  });
+
   it('does not pick a random tenant when only nodeServer matches several rows', () => {
     const sharedOnly = [
       { ...montzar, domain: 'a.ir', domains: [] },

src/auth/tenant-host.util.ts

@@ -62,14 +62,17 @@ function isSubdomainOf(host: string, parent: string): boolean {
   return child === root || child.endsWith('.' + root);
 }
 
+export type TenantHostMatchMode = 'full' | 'hmac';
+
 /**
- * Same identity as GET /get_user?domain= — primary domain, then aliases,
- * then app/admin URLs. nodeServer is last and only if unique (many versions
- * share one API host like new.gholaktala.ir).
+ * full: get_user — دامنه، alias، app/admin/node.
+ * hmac: فقط دامنهٔ اصلی نسخه (و ساب‌دامنهٔ همان). adminUrl مشترک
+ * (k.montzar.ir روی نسخهٔ app.gholaktala.ir) هویت نیست.
  */
 export function scoreTenantHost(
   tenant: TenantHostFields,
   hostRaw: string,
+  mode: TenantHostMatchMode = 'full',
 ): number {
   const host = normalizeTenantHost(hostRaw);
   if (!host) return 0;
@@ -77,6 +80,11 @@ export function scoreTenantHost(
     hostsEqual(normalizeTenantHost(raw), host);
 
   if (eq(tenant.domain)) return 100;
+  if (mode === 'hmac') {
+    if (tenant.domain && isSubdomainOf(host, tenant.domain)) return 75;
+    return 0;
+  }
+
   for (const alias of readHostList(tenant.domains)) {
     if (eq(alias)) return 90;
   }
@@ -102,16 +110,16 @@ export function scoreTenantHost(
 export function findTenantForHost<T extends TenantHostFields>(
   tenants: T[],
   host: string,
+  mode: TenantHostMatchMode = 'full',
 ): T | undefined {
   const scored = tenants
-    .map((row) => ({ row, score: scoreTenantHost(row, host) }))
+    .map((row) => ({ row, score: scoreTenantHost(row, host, mode) }))
     .filter((item) => item.score > 0)
     .sort((a, b) => b.score - a.score);
   if (!scored.length) return undefined;
 
   const best = scored[0].score;
   const tied = scored.filter((item) => item.score === best);
-  // nodeServer مشترک یا دو نسخه با امتیاز مساوی — حدس نزن
   if (tied.length !== 1) return undefined;
   return tied[0].row;
 }