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-rw-r--r--src/headless/helpers.ts134
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diff --git a/src/headless/helpers.ts b/src/headless/helpers.ts
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--- a/src/headless/helpers.ts
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@@ -1,134 +0,0 @@
-/*
- This file is part of GNU Taler
- (C) 2019 Taler Systems S.A.
-
- GNU Taler is free software; you can redistribute it and/or modify it under the
- terms of the GNU General Public License as published by the Free Software
- Foundation; either version 3, or (at your option) any later version.
-
- GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
- A PARTICULAR PURPOSE. See the GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License along with
- GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
- */
-
-/**
- * Helpers to create headless wallets.
- * @author Florian Dold <dold@taler.net>
- */
-
-/**
- * Imports.
- */
-import { Wallet } from "../wallet";
-import { MemoryBackend, BridgeIDBFactory, shimIndexedDB } from "idb-bridge";
-import { openTalerDatabase } from "../db";
-import { HttpRequestLibrary } from "../util/http";
-import fs from "fs";
-import { NodeThreadCryptoWorkerFactory } from "../crypto/workers/nodeThreadWorker";
-import { WalletNotification } from "../types/notifications";
-import { Database } from "../util/query";
-import { NodeHttpLib } from "./NodeHttpLib";
-import { Logger } from "../util/logging";
-import { SynchronousCryptoWorkerFactory } from "../crypto/workers/synchronousWorker";
-
-const logger = new Logger("headless/helpers.ts");
-
-export interface DefaultNodeWalletArgs {
- /**
- * Location of the wallet database.
- *
- * If not specified, the wallet starts out with an empty database and
- * the wallet database is stored only in memory.
- */
- persistentStoragePath?: string;
-
- /**
- * Handler for asynchronous notifications from the wallet.
- */
- notifyHandler?: (n: WalletNotification) => void;
-
- /**
- * If specified, use this as HTTP request library instead
- * of the default one.
- */
- httpLib?: HttpRequestLibrary;
-}
-
-/**
- * Get a wallet instance with default settings for node.
- */
-export async function getDefaultNodeWallet(
- args: DefaultNodeWalletArgs = {},
-): Promise<Wallet> {
- BridgeIDBFactory.enableTracing = false;
- const myBackend = new MemoryBackend();
- myBackend.enableTracing = false;
-
- const storagePath = args.persistentStoragePath;
- if (storagePath) {
- try {
- const dbContentStr: string = fs.readFileSync(storagePath, {
- encoding: "utf-8",
- });
- const dbContent = JSON.parse(dbContentStr);
- myBackend.importDump(dbContent);
- } catch (e) {
- logger.warn("could not read wallet file");
- }
-
- myBackend.afterCommitCallback = async () => {
- // Allow caller to stop persisting the wallet.
- if (args.persistentStoragePath === undefined) {
- return;
- }
- const dbContent = myBackend.exportDump();
- fs.writeFileSync(storagePath, JSON.stringify(dbContent, undefined, 2), {
- encoding: "utf-8",
- });
- };
- }
-
- BridgeIDBFactory.enableTracing = false;
-
- const myBridgeIdbFactory = new BridgeIDBFactory(myBackend);
- const myIdbFactory: IDBFactory = (myBridgeIdbFactory as any) as IDBFactory;
-
- let myHttpLib;
- if (args.httpLib) {
- myHttpLib = args.httpLib;
- } else {
- myHttpLib = new NodeHttpLib();
- }
-
- const myVersionChange = (): Promise<void> => {
- console.error("version change requested, should not happen");
- throw Error();
- };
-
- shimIndexedDB(myBridgeIdbFactory);
-
- const myDb = await openTalerDatabase(myIdbFactory, myVersionChange);
-
- let workerFactory;
- try {
- // Try if we have worker threads available, fails in older node versions.
- require("worker_threads");
- workerFactory = new NodeThreadCryptoWorkerFactory();
- } catch (e) {
- console.log(
- "worker threads not available, falling back to synchronous workers",
- );
- workerFactory = new SynchronousCryptoWorkerFactory();
- }
-
- const dbWrap = new Database(myDb);
-
- const w = new Wallet(dbWrap, myHttpLib, workerFactory);
- if (args.notifyHandler) {
- w.addNotificationListener(args.notifyHandler);
- }
- return w;
-}