Change Phone Number notifications

ts/textsecure/MessageReceiver.ts

@@ -95,6 +95,7 @@ import {
   ContactSyncEvent,
   GroupEvent,
   GroupSyncEvent,
+  EnvelopeEvent,
 } from './messageReceiverEvents';
 
 // TODO: remove once we move away from ArrayBuffers
@@ -459,6 +460,11 @@ export default class MessageReceiver
     handler: (ev: GroupSyncEvent) => void
   ): void;
 
+  public addEventListener(
+    name: 'envelope',
+    handler: (ev: EnvelopeEvent) => void
+  ): void;
+
   public addEventListener(name: string, handler: EventHandler): void {
     return super.addEventListener(name, handler);
   }
@@ -981,8 +987,6 @@ export default class MessageReceiver
     if (this.stoppingProcessing) {
       return;
     }
-    // No decryption is required for delivery receipts, so the decrypted field of
-    //   the Unprocessed model will never be set
 
     if (envelope.content) {
       await this.innerHandleContentMessage(envelope, plaintext);

ts/textsecure/messageReceiverEvents.ts

@@ -5,7 +5,11 @@
 import { PublicKey } from '@signalapp/signal-client';
 
 import { SignalService as Proto } from '../protobuf';
-import { ProcessedDataMessage, ProcessedSent } from './Types.d';
+import {
+  ProcessedEnvelope,
+  ProcessedDataMessage,
+  ProcessedSent,
+} from './Types.d';
 import type {
   ModifiedContactDetails,
   ModifiedGroupDetails,
@@ -136,6 +140,12 @@ export class GroupSyncEvent extends Event {
   }
 }
 
+export class EnvelopeEvent extends Event {
+  constructor(public readonly envelope: ProcessedEnvelope) {
+    super('envelope');
+  }
+}
+
 //
 // Confirmable events below
 //

ts/textsecure/storage/User.ts

@@ -3,6 +3,7 @@
 
 import { WebAPICredentials } from '../Types.d';
 
+import { strictAssert } from '../../util/assert';
 import { StorageInterface } from '../../types/Storage.d';
 
 import Helpers from '../Helpers';
@@ -27,6 +28,25 @@ export class User {
     window.log.info('storage.user: uuid and device id changed');
   }
 
+  public async setNumber(number: string): Promise<void> {
+    if (this.getNumber() === number) {
+      return;
+    }
+
+    const deviceId = this.getDeviceId();
+    strictAssert(
+      deviceId !== undefined,
+      'Cannot update device number without knowing device id'
+    );
+
+    window.log.info('storage.user: number changed');
+
+    await this.storage.put('number_id', `${number}.${deviceId}`);
+
+    // Notify redux about phone number change
+    window.Whisper.events.trigger('userChanged');
+  }
+
   public getNumber(): string | undefined {
     const numberId = this.storage.get('number_id');
     if (numberId === undefined) return undefined;