feat(notifications): [PM-19388] Enable push notifications on locked clients

* Add back notifications connection on locked accounts

* Updated tests.

* Make sure web push connection service is started synchronously

* Fixed merge conflicts.

---------

Co-authored-by: Justin Baur <19896123+justindbaur@users.noreply.github.com>

apps/browser/src/background/main.background.ts

@@ -1125,6 +1125,7 @@ export default class MainBackground {
       new SignalRConnectionService(this.apiService, this.logService),
       this.authService,
       this.webPushConnectionService,
+      this.configService,
     );
 
     this.fido2UserInterfaceService = new BrowserFido2UserInterfaceService(this.authService);
@@ -1370,12 +1371,14 @@ export default class MainBackground {
       this.accountService,
       this.authService,
     );
-  }
 
-  async bootstrap() {
+    // Synchronous startup
     if (this.webPushConnectionService instanceof WorkerWebPushConnectionService) {
       this.webPushConnectionService.start();
     }
+  }
+
+  async bootstrap() {
     this.containerService.attachToGlobal(self);
 
     await this.sdkLoadService.loadAndInit();

libs/angular/src/services/jslib-services.module.ts

@@ -943,6 +943,7 @@ const safeProviders: SafeProvider[] = [
       SignalRConnectionService,
       AuthServiceAbstraction,
       WebPushConnectionService,
+      ConfigService,
     ],
   }),
   safeProvider({

libs/common/src/enums/feature-flag.enum.ts

@@ -53,6 +53,7 @@ export enum FeatureFlag {
 
   /* Platform */
   IpcChannelFramework = "ipc-channel-framework",
+  PushNotificationsWhenLocked = "pm-19388-push-notifications-when-locked",
 }
 
 export type AllowedFeatureFlagTypes = boolean | number | string;
@@ -112,6 +113,7 @@ export const DefaultFeatureFlagValue = {
 
   /* Platform */
   [FeatureFlag.IpcChannelFramework]: FALSE,
+  [FeatureFlag.PushNotificationsWhenLocked]: FALSE,
 } satisfies Record<FeatureFlag, AllowedFeatureFlagTypes>;
 
 export type DefaultFeatureFlagValueType = typeof DefaultFeatureFlagValue;

libs/common/src/platform/server-notifications/internal/default-notifications.service.spec.ts

@@ -1,5 +1,5 @@
 import { mock, MockProxy } from "jest-mock-extended";
-import { BehaviorSubject, bufferCount, firstValueFrom, ObservedValueOf, Subject } from "rxjs";
+import { BehaviorSubject, bufferCount, firstValueFrom, ObservedValueOf, of, Subject } from "rxjs";
 
 // This import has been flagged as unallowed for this class. It may be involved in a circular dependency loop.
 // eslint-disable-next-line no-restricted-imports
@@ -14,6 +14,7 @@ import { NotificationType } from "../../../enums";
 import { NotificationResponse } from "../../../models/response/notification.response";
 import { UserId } from "../../../types/guid";
 import { AppIdService } from "../../abstractions/app-id.service";
+import { ConfigService } from "../../abstractions/config/config.service";
 import { Environment, EnvironmentService } from "../../abstractions/environment.service";
 import { LogService } from "../../abstractions/log.service";
 import { MessageSender } from "../../messaging";
@@ -38,6 +39,7 @@ describe("NotificationsService", () => {
   let signalRNotificationConnectionService: MockProxy<SignalRConnectionService>;
   let authService: MockProxy<AuthService>;
   let webPushNotificationConnectionService: MockProxy<WebPushConnectionService>;
+  let configService: MockProxy<ConfigService>;
 
   let activeAccount: BehaviorSubject<ObservedValueOf<AccountService["activeAccount$"]>>;
 
@@ -64,6 +66,9 @@ describe("NotificationsService", () => {
     signalRNotificationConnectionService = mock<SignalRConnectionService>();
     authService = mock<AuthService>();
     webPushNotificationConnectionService = mock<WorkerWebPushConnectionService>();
+    configService = mock<ConfigService>();
+
+    configService.getFeatureFlag$.mockReturnValue(of(true));
 
     activeAccount = new BehaviorSubject<ObservedValueOf<AccountService["activeAccount$"]>>(null);
     accountService.activeAccount$ = activeAccount.asObservable();
@@ -104,6 +109,7 @@ describe("NotificationsService", () => {
       signalRNotificationConnectionService,
       authService,
       webPushNotificationConnectionService,
+      configService,
     );
   });
 
@@ -227,10 +233,9 @@ describe("NotificationsService", () => {
   });
 
   it.each([
-    // Temporarily rolling back server notifications being connected while locked
-    // { initialStatus: AuthenticationStatus.Locked, updatedStatus: AuthenticationStatus.Unlocked },
-    // { initialStatus: AuthenticationStatus.Unlocked, updatedStatus: AuthenticationStatus.Locked },
-    // { initialStatus: AuthenticationStatus.Locked, updatedStatus: AuthenticationStatus.Locked },
+    { initialStatus: AuthenticationStatus.Locked, updatedStatus: AuthenticationStatus.Unlocked },
+    { initialStatus: AuthenticationStatus.Unlocked, updatedStatus: AuthenticationStatus.Locked },
+    { initialStatus: AuthenticationStatus.Locked, updatedStatus: AuthenticationStatus.Locked },
     { initialStatus: AuthenticationStatus.Unlocked, updatedStatus: AuthenticationStatus.Unlocked },
   ])(
     "does not re-connect when the user transitions from $initialStatus to $updatedStatus",
@@ -255,11 +260,7 @@ describe("NotificationsService", () => {
     },
   );
 
-  it.each([
-    // Temporarily disabling server notifications connecting while in a locked state
-    // AuthenticationStatus.Locked,
-    AuthenticationStatus.Unlocked,
-  ])(
+  it.each([AuthenticationStatus.Locked, AuthenticationStatus.Unlocked])(
     "connects when a user transitions from logged out to %s",
     async (newStatus: AuthenticationStatus) => {
       emitActiveUser(mockUser1);

libs/common/src/platform/server-notifications/internal/default-server-notifications.service.ts

@@ -14,6 +14,7 @@ import {
 // This import has been flagged as unallowed for this class. It may be involved in a circular dependency loop.
 // eslint-disable-next-line no-restricted-imports
 import { LogoutReason } from "@bitwarden/auth/common";
+import { FeatureFlag } from "@bitwarden/common/enums/feature-flag.enum";
 
 import { AccountService } from "../../../auth/abstractions/account.service";
 import { AuthService } from "../../../auth/abstractions/auth.service";
@@ -28,6 +29,7 @@ import {
 import { UserId } from "../../../types/guid";
 import { SyncService } from "../../../vault/abstractions/sync/sync.service.abstraction";
 import { AppIdService } from "../../abstractions/app-id.service";
+import { ConfigService } from "../../abstractions/config/config.service";
 import { EnvironmentService } from "../../abstractions/environment.service";
 import { LogService } from "../../abstractions/log.service";
 import { MessagingService } from "../../abstractions/messaging.service";
@@ -55,6 +57,7 @@ export class DefaultServerNotificationsService implements ServerNotificationsSer
     private readonly signalRConnectionService: SignalRConnectionService,
     private readonly authService: AuthService,
     private readonly webPushConnectionService: WebPushConnectionService,
+    private readonly configService: ConfigService,
   ) {
     this.notifications$ = this.accountService.activeAccount$.pipe(
       map((account) => account?.id),
@@ -132,16 +135,27 @@ export class DefaultServerNotificationsService implements ServerNotificationsSer
     );
   }
 
-  // This method name is a lie currently as we also have an access token
-  // when locked, this is eventually where we want to be but it increases load
-  // on signalR so we are rolling back until we can move the load of browser to
-  // web push.
   private hasAccessToken$(userId: UserId) {
+    return this.configService.getFeatureFlag$(FeatureFlag.PushNotificationsWhenLocked).pipe(
+      switchMap((featureFlagEnabled) => {
+        if (featureFlagEnabled) {
+          return this.authService.authStatusFor$(userId).pipe(
+            map(
+              (authStatus) =>
+                authStatus === AuthenticationStatus.Locked ||
+                authStatus === AuthenticationStatus.Unlocked,
+            ),
+            distinctUntilChanged(),
+          );
+        } else {
           return this.authService.authStatusFor$(userId).pipe(
             map((authStatus) => authStatus === AuthenticationStatus.Unlocked),
             distinctUntilChanged(),
           );
         }
+      }),
+    );
+  }
 
   private async processNotification(notification: NotificationResponse, userId: UserId) {
     const appId = await this.appIdService.getAppId();