Stop round-tripping wallpaper data

ts/services/backups/import.ts

@@ -3738,13 +3738,25 @@ export class BackupImportStream extends Writable {
       autoBubbleColor = true;
     }
 
+    // We only roundtrip wallpaper info in tests since it is not synced in storage service
+    const shouldImportWallpaper = isTestOrMockEnvironment();
+
     return {
-      wallpaperPhotoPointer,
-      wallpaperPreset,
       color,
       customColorData,
-      dimWallpaperInDarkMode,
-      autoBubbleColor,
+      ...(shouldImportWallpaper
+        ? {
+            autoBubbleColor,
+            wallpaperPhotoPointer,
+            wallpaperPreset,
+            dimWallpaperInDarkMode,
+          }
+        : {
+            autoBubbleColor: undefined,
+            wallpaperPhotoPointer: undefined,
+            wallpaperPreset: undefined,
+            dimWallpaperInDarkMode: undefined,
+          }),
     };
   }
 

ts/sql/migrations/1410-remove-wallpaper.ts

@@ -0,0 +1,41 @@
+// Copyright 2025 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import type { LoggerType } from '../../types/Logging';
+import { type WritableDB } from '../Interface';
+
+export const version = 1410;
+
+export function updateToSchemaVersion1410(
+  currentVersion: number,
+  db: WritableDB,
+  logger: LoggerType
+): void {
+  if (currentVersion >= 1410) {
+    return;
+  }
+
+  db.transaction(() => {
+    db.exec(`
+      UPDATE conversations
+        SET json = json_remove(json, 
+          '$.wallpaperPreset', 
+          '$.wallpaperPhotoPointerBase64', 
+          '$.dimWallpaperInDarkMode',
+          '$.autoBubbleColor'
+        );
+      
+      DELETE FROM items 
+        WHERE id IN (
+          'defaultWallpaperPhotoPointer',
+          'defaultWallpaperPreset',
+          'defaultDimWallpaperInDarkMode',
+          'defaultAutoBubbleColor'
+        );
+    `);
+
+    db.pragma('user_version = 1410');
+  })();
+
+  logger.info('updateToSchemaVersion1410: success!');
+}

ts/sql/migrations/index.ts

@@ -115,10 +115,11 @@ import { updateToSchemaVersion1360 } from './1360-attachments';
 import { updateToSchemaVersion1370 } from './1370-message-attachment-indexes';
 import { updateToSchemaVersion1380 } from './1380-donation-receipts';
 import { updateToSchemaVersion1390 } from './1390-attachment-download-keys';
+import { updateToSchemaVersion1400 } from './1400-simplify-receipts';
 import {
-  updateToSchemaVersion1400,
+  updateToSchemaVersion1410,
   version as MAX_VERSION,
-} from './1400-simplify-receipts';
+} from './1410-remove-wallpaper';
 
 import { DataWriter } from '../Server';
 
@@ -2113,6 +2114,7 @@ export const SCHEMA_VERSIONS = [
   updateToSchemaVersion1390,
 
   updateToSchemaVersion1400,
+  updateToSchemaVersion1410,
 ];
 
 export class DBVersionFromFutureError extends Error {

ts/test-node/sql/migration_1410_test.ts

@@ -0,0 +1,133 @@
+// Copyright 2025 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { assert } from 'chai';
+
+import { type WritableDB } from '../../sql/Interface';
+import { createDB, updateToVersion, insertData, getTableData } from './helpers';
+import { createOrUpdate, getById } from '../../sql/util';
+
+describe('SQL/updateToSchemaVersion1410', () => {
+  let db: WritableDB;
+
+  afterEach(() => {
+    db.close();
+  });
+
+  beforeEach(() => {
+    db = createDB();
+    updateToVersion(db, 1400);
+  });
+
+  it('deletes conversation wallpaper data if exists', () => {
+    const convos = [
+      {
+        id: 'convo-1',
+        expireTimerVersion: 1,
+        json: {
+          wallpaperPreset: 42,
+          wallpaperPhotoPointerBase64: 'base64',
+          dimWallpaperInDarkMode: false,
+          autoBubbleColor: true,
+          profileName: 'Alice',
+        },
+      },
+      {
+        id: 'convo-2',
+        expireTimerVersion: 3,
+        json: {
+          wallpaperPreset: 42,
+          wallpaperPhotoPointerBase64: 'base64',
+          profileName: 'Bob',
+        },
+      },
+      {
+        id: 'convo-3',
+        expireTimerVersion: 4,
+        json: {
+          profileName: 'Charlie',
+        },
+      },
+    ];
+    insertData(db, 'conversations', convos);
+    updateToVersion(db, 1410);
+
+    assert.deepStrictEqual(getTableData(db, 'conversations'), [
+      {
+        id: 'convo-1',
+        expireTimerVersion: 1,
+        json: {
+          profileName: 'Alice',
+        },
+      },
+      {
+        id: 'convo-2',
+        expireTimerVersion: 3,
+        json: {
+          profileName: 'Bob',
+        },
+      },
+      {
+        id: 'convo-3',
+        expireTimerVersion: 4,
+        json: {
+          profileName: 'Charlie',
+        },
+      },
+    ]);
+  });
+
+  it('deletes default wallpaper data if exists', () => {
+    const items = [
+      {
+        id: 'defaultWallpaperPhotoPointer',
+        value: JSON.stringify(new Uint8Array([1, 2, 3])),
+      },
+      {
+        id: 'defaultWallpaperPreset',
+        value: 12,
+      },
+      {
+        id: 'defaultDimWallpaperInDarkMode',
+        value: true,
+      },
+      {
+        id: 'defaultAutoBubbleColor',
+        value: false,
+      },
+      {
+        id: 'otherItem',
+        value: 'otherItem-shouldBePreserved',
+      },
+    ];
+
+    for (const item of items) {
+      createOrUpdate(db, 'items', { id: item.id, value: item });
+    }
+    updateToVersion(db, 1410);
+
+    assert.deepStrictEqual(
+      getById(db, 'items', 'defaultWallpaperPhotoPointer'),
+      undefined
+    );
+    assert.deepStrictEqual(getById(db, 'items', 'otherItem'), {
+      id: 'otherItem',
+      value: {
+        id: 'otherItem',
+        value: 'otherItem-shouldBePreserved',
+      },
+    });
+    assert.deepStrictEqual(getTableData(db, 'items'), [
+      {
+        id: 'otherItem',
+        json: {
+          id: 'otherItem',
+          value: {
+            id: 'otherItem',
+            value: 'otherItem-shouldBePreserved',
+          },
+        },
+      },
+    ]);
+  });
+});

ts/types/Storage.d.ts

@@ -78,12 +78,6 @@ export type StorageAccessType = {
   blocked: ReadonlyArray<string>;
   defaultConversationColor: DefaultConversationColorType;
 
-  // Not used UI, stored as is when imported from backup.
-  defaultWallpaperPhotoPointer: Uint8Array;
-  defaultWallpaperPreset: number;
-  defaultDimWallpaperInDarkMode: boolean;
-  defaultAutoBubbleColor: boolean;
-
   customColors: CustomColorsItemType;
   device_name: string;
   existingOnboardingStoryMessageIds: ReadonlyArray<string> | undefined;
@@ -250,6 +244,13 @@ export type StorageAccessType = {
 
   avatarsHaveBeenMigrated: boolean;
 
+  // Test-only
+  // Not used UI, stored as is when imported from backup during tests
+  defaultWallpaperPhotoPointer: Uint8Array;
+  defaultWallpaperPreset: number;
+  defaultDimWallpaperInDarkMode: boolean;
+  defaultAutoBubbleColor: boolean;
+
   // Deprecated
   'challenge:retry-message-ids': never;
   nextSignedKeyRotationTime: number;