[Issue-2276] Backup and restore indexedDB

packages/extension-base/package.json

@@ -66,6 +66,7 @@
     "buffer": "^6.0.3",
     "cross-fetch": "^3.1.5",
     "dexie": "^3.2.2",
+    "dexie-export-import": "^4.0.7",
     "eth-simple-keyring": "^4.2.0",
     "ethereumjs-tx": "^2.1.2",
     "ethereumjs-util": "^7.1.5",

packages/extension-base/src/background/KoniTypes.ts

@@ -15,6 +15,7 @@ import { KeyringPair$Json, KeyringPair$Meta } from '@subwallet/keyring/types';
 import { KeyringOptions } from '@subwallet/ui-keyring/options/types';
 import { KeyringAddress, KeyringPairs$Json } from '@subwallet/ui-keyring/types';
 import { SessionTypes } from '@walletconnect/types/dist/types/sign-client/session';
+import { DexieExportJsonMeta } from 'dexie-export-import';
 import Web3 from 'web3';
 import { RequestArguments, TransactionConfig } from 'web3-core';
 import { JsonRpcPayload, JsonRpcResponse } from 'web3-core-helpers';
@@ -2397,6 +2398,12 @@ export interface KoniRequestSignatures {
   'pri(buyService.tokens.subscribe)': [null, Record<string, BuyTokenInfo>, Record<string, BuyTokenInfo>];
   'pri(buyService.services.subscribe)': [null, Record<string, BuyServiceInfo>, Record<string, BuyServiceInfo>];
   /* Buy Service */
+
+  /* Database Service */
+  'pri(database.export)': [null, string];
+  'pri(database.import)': [string, boolean];
+  'pri(database.checkMetadata)': [string, DexieExportJsonMeta];
+  /* Database Service */
 }
 
 export interface ApplicationMetadataType {

packages/extension-base/src/koni/background/handlers/Extension.ts

@@ -4424,6 +4424,15 @@ export default class KoniExtension {
       case 'pri(buyService.services.subscribe)':
         return this.subscribeBuyServices(id, port);
         /* Buy service */
+
+        /* Database */
+      case 'pri(database.export)':
+        return this.#koniState.dbService.exportDB();
+      case 'pri(database.import)':
+        return this.#koniState.dbService.importDB(request as string);
+      case 'pri(database.checkMetadata)':
+        return this.#koniState.dbService.checkImportMetadata(request as string);
+        /* Database */
       // Default
       default:
         throw new Error(`Unable to handle message of type ${type}`);

packages/extension-base/src/services/storage-service/DatabaseService.ts

@@ -14,10 +14,13 @@ import NominatorMetadataStore from '@subwallet/extension-base/services/storage-s
 import { HistoryQuery } from '@subwallet/extension-base/services/storage-service/db-stores/Transaction';
 import { reformatAddress } from '@subwallet/extension-base/utils';
 import { Subscription } from 'dexie';
+import { exportDB, peakImportFile } from 'dexie-export-import';
 
 import { logger as createLogger } from '@polkadot/util';
 import { Logger } from '@polkadot/util/types';
 
+const EXPORT_EXCLUDE_TABLES = ['metadata'];
+
 export default class DatabaseService {
   private _db: KoniDatabase;
   public stores;
@@ -343,4 +346,48 @@ export default class DatabaseService {
   public upsertCampaign (campaign: ICampaign) {
     return this.stores.campaign.upsertCampaign(campaign);
   }
+
+  async exportDB () {
+    const blob = await exportDB(this._db, {
+      filter: (table, value, key) => {
+        if (EXPORT_EXCLUDE_TABLES.indexOf(table) >= 0) {
+          return false;
+        }
+
+        return true;
+      }
+    });
+
+    return await blob.text();
+  }
+
+  async importDB (data: string) {
+    try {
+      const blob = new Blob([data], { type: 'application/json' });
+
+      await this._db.import(blob, {
+        overwriteValues: true,
+        acceptMissingTables: true,
+        acceptVersionDiff: true
+      });
+
+      return true;
+    } catch (e) {
+      this.logger.error(e);
+
+      return false;
+    }
+  }
+
+  async checkImportMetadata (data: string) {
+    try {
+      const blob = new Blob([data], { type: 'application/json' });
+
+      return await peakImportFile(blob);
+    } catch (e) {
+      this.logger.error(e);
+
+      return null;
+    }
+  }
 }

packages/extension-koni-ui/src/messaging/database/index.ts

@@ -0,0 +1,16 @@
+// Copyright 2019-2022 @subwallet/extension-koni-ui authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import { sendMessage } from '@subwallet/extension-koni-ui/messaging';
+
+export async function exportIndexedDB (): Promise<string> {
+  return sendMessage('pri(database.export)', null);
+}
+
+export async function importIndexedDB (request: string): Promise<boolean> {
+  return sendMessage('pri(database.import)', request);
+}
+
+export async function checkIndexedMetadata (request: string): Promise<object> {
+  return sendMessage('pri(database.checkMetadata)', request);
+}

packages/extension-koni-ui/src/messaging/index.ts

@@ -50,3 +50,4 @@ export * from './qr-signer';
 export * from './settings';
 export * from './transaction';
 export * from './WalletConnect';
+export * from './database';

yarn.lock

@@ -5917,6 +5917,7 @@ __metadata:
     buffer: ^6.0.3
     cross-fetch: ^3.1.5
     dexie: ^3.2.2
+    dexie-export-import: ^4.0.7
     eth-simple-keyring: ^4.2.0
     ethereumjs-tx: ^2.1.2
     ethereumjs-util: ^7.1.5
@@ -6053,6 +6054,7 @@ __metadata:
     bowser: ^2.11.0
     classnames: ^2.3.2
     copy-to-clipboard: ^3.3.3
+    dexie-export-import: ^4.0.7
     enzyme: ^3.11.0
     enzyme-adapter-react-16: ^1.15.7
     file-saver: ^2.0.5
@@ -11611,6 +11613,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"dexie-export-import@npm:^4.0.7":
+  version: 4.0.7
+  resolution: "dexie-export-import@npm:4.0.7"
+  peerDependencies:
+    dexie: ^2.0.4 || ^3.0.0 || ^4.0.1-alpha.5
+  checksum: e0a80b09b5805da5d3daa90e5d8de397e4f3f16650b84e2aea46af4f44f1e2259babb094fca4c2944345696068ca593197781a5627569e875b60ab8d32b31db3
+  languageName: node
+  linkType: hard
+
 "dexie@npm:^3.2.2":
   version: 3.2.2
   resolution: "dexie@npm:3.2.2"