fix(sso): improve enterprise key var management (#8152)

Resolve https://github.com/twentyhq/twenty/issues/8070

---------

Co-authored-by: Félix Malfait <felix@twenty.com>

packages/twenty-server/src/engine/core-modules/user/user.resolver.ts

@@ -35,6 +35,7 @@ import { AuthWorkspace } from 'src/engine/decorators/auth/auth-workspace.decorat
 import { DemoEnvGuard } from 'src/engine/guards/demo.env.guard';
 import { WorkspaceAuthGuard } from 'src/engine/guards/workspace-auth.guard';
 import { streamToBuffer } from 'src/utils/stream-to-buffer';
+import { isDefined } from 'src/utils/is-defined';
 
 const getHMACKey = (email?: string, key?: string | null) => {
   if (!email || !key) return null;

packages/twenty-server/src/engine/core-modules/workspace/workspace.resolver.ts

@@ -14,6 +14,7 @@ import { FileFolder } from 'src/engine/core-modules/file/interfaces/file-folder.
 
 import { BillingSubscription } from 'src/engine/core-modules/billing/entities/billing-subscription.entity';
 import { BillingSubscriptionService } from 'src/engine/core-modules/billing/services/billing-subscription.service';
+import { EnvironmentService } from 'src/engine/core-modules/environment/environment.service';
 import { FileUploadService } from 'src/engine/core-modules/file/file-upload/services/file-upload.service';
 import { FileService } from 'src/engine/core-modules/file/services/file.service';
 import { UserWorkspaceService } from 'src/engine/core-modules/user-workspace/user-workspace.service';
@@ -26,6 +27,7 @@ import { DemoEnvGuard } from 'src/engine/guards/demo.env.guard';
 import { UserAuthGuard } from 'src/engine/guards/user-auth.guard';
 import { WorkspaceAuthGuard } from 'src/engine/guards/workspace-auth.guard';
 import { assert } from 'src/utils/assert';
+import { isDefined } from 'src/utils/is-defined';
 import { streamToBuffer } from 'src/utils/stream-to-buffer';
 
 import { Workspace } from './workspace.entity';
@@ -38,6 +40,7 @@ export class WorkspaceResolver {
   constructor(
     private readonly workspaceService: WorkspaceService,
     private readonly userWorkspaceService: UserWorkspaceService,
+    private readonly environmentService: EnvironmentService,
     private readonly fileUploadService: FileUploadService,
     private readonly fileService: FileService,
     private readonly billingSubscriptionService: BillingSubscriptionService,
@@ -136,4 +139,9 @@ export class WorkspaceResolver {
 
     return workspace.logo ?? '';
   }
+
+  @ResolveField(() => Boolean)
+  hasValidEntrepriseKey(): boolean {
+    return isDefined(this.environmentService.get('ENTERPRISE_KEY'));
+  }
 }