splitting syncWorker with the factory so the former do not require nodejs runtime

packages/taler-wallet-core/src/crypto/workers/cryptoImplementation.ts

@@ -25,54 +25,24 @@
  */
 
 // FIXME: Crypto should not use DB Types!
-import { DenominationRecord, WireFee } from "../../db.js";
-
 import {
-  buildSigPS,
+  AmountJson, Amounts, BenchmarkResult, buildSigPS,
-  CoinDepositPermission,
+  CoinDepositPermission, createEddsaKeyPair, createHashContext, decodeCrock,
-  DenomKeyType,
+  DenomKeyType, DepositInfo, eddsaGetPublic, eddsaSign, eddsaVerify,
-  ExchangeProtocolVersion,
+  encodeCrock, ExchangeProtocolVersion,
-  FreshCoin,
+  FreshCoin, hash, hashDenomPub, kdf, keyExchangeEcdheEddsa,
-  hashDenomPub,
+  // Logger,
-  RecoupRefreshRequest,
+  MakeSyncSignatureRequest, PlanchetCreationRequest, PlanchetCreationResult,
+  randomBytes, RecoupRefreshRequest,
   RecoupRequest,
-  RefreshPlanchetInfo,
+  RefreshPlanchetInfo, rsaBlind, rsaUnblind, rsaVerify, setupRefreshPlanchet,
-  TalerSignaturePurpose,
-} from "@gnu-taler/taler-util";
-// FIXME: These types should be internal to the wallet!
-import {
-  BenchmarkResult,
-  PlanchetCreationResult,
-  PlanchetCreationRequest,
-  DepositInfo,
-  MakeSyncSignatureRequest,
-} from "@gnu-taler/taler-util";
-import { AmountJson, Amounts } from "@gnu-taler/taler-util";
-import * as timer from "../../util/timer.js";
-import {
-  encodeCrock,
-  decodeCrock,
-  createEddsaKeyPair,
-  hash,
-  rsaBlind,
-  eddsaVerify,
-  eddsaSign,
-  rsaUnblind,
-  stringToBytes,
-  createHashContext,
-  keyExchangeEcdheEddsa,
-  setupRefreshPlanchet,
-  rsaVerify,
   setupRefreshTransferPub,
   setupTipPlanchet,
-  setupWithdrawPlanchet,
+  setupWithdrawPlanchet, stringToBytes, TalerSignaturePurpose, Timestamp, timestampTruncateToSecond
-  eddsaGetPublic,
 } from "@gnu-taler/taler-util";
-import { randomBytes } from "@gnu-taler/taler-util";
+import bigint from "big-integer";
-import { kdf } from "@gnu-taler/taler-util";
+import { DenominationRecord, WireFee } from "../../db.js";
-import { Timestamp, timestampTruncateToSecond } from "@gnu-taler/taler-util";
+import * as timer from "../../util/timer.js";
-
-import { Logger } from "@gnu-taler/taler-util";
 import {
   CreateRecoupRefreshReqRequest,
   CreateRecoupReqRequest,
@@ -80,11 +50,10 @@ import {
   DerivedTipPlanchet,
   DeriveRefreshSessionRequest,
   DeriveTipRequest,
-  SignTrackTransactionRequest,
+  SignTrackTransactionRequest
 } from "../cryptoTypes.js";
-import bigint from "big-integer";
 
-const logger = new Logger("cryptoImplementation.ts");
+// const logger = new Logger("cryptoImplementation.ts");
 
 function amountToBuffer(amount: AmountJson): Uint8Array {
   const buffer = new ArrayBuffer(8 + 4 + 12);

packages/taler-wallet-core/src/crypto/workers/synchronousWorker.ts

@@ -14,135 +14,16 @@
  GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
  */
 
+import { Logger } from "@gnu-taler/taler-util";
 import {
   CryptoImplementation,
-  PrimitiveWorker,
+  PrimitiveWorker
 } from "./cryptoImplementation.js";
 
-import { CryptoWorkerFactory } from "./cryptoApi.js";
-import { CryptoWorker } from "./cryptoWorkerInterface.js";
 
-import child_process from "child_process";
-import type internal from "stream";
-import { OpenedPromise, openPromise } from "../../index.js";
-import { j2s, Logger } from "@gnu-taler/taler-util";
 
 const logger = new Logger("synchronousWorker.ts");
 
-class MyPrimitiveWorker implements PrimitiveWorker {
-  proc: child_process.ChildProcessByStdio<
-    internal.Writable,
-    internal.Readable,
-    null
-  >;
-  requests: Array<{
-    p: OpenedPromise<any>;
-    req: any;
-  }> = [];
-
-  constructor() {
-    const stdoutChunks: Buffer[] = [];
-    this.proc = child_process.spawn("taler-crypto-worker", {
-      //stdio: ["pipe", "pipe", "inherit"],
-      stdio: ["pipe", "pipe", "inherit"],
-      detached: true,
-    });
-    this.proc.on("close", function (code) {
-      logger.error("child process exited");
-    });
-    (this.proc.stdout as any).unref();
-    (this.proc.stdin as any).unref();
-    this.proc.unref();
-
-    this.proc.stdout.on("data", (x) => {
-      // console.log("got chunk", x.toString("utf-8"));
-      if (x instanceof Buffer) {
-        const nlIndex = x.indexOf("\n");
-        if (nlIndex >= 0) {
-          const before = x.slice(0, nlIndex);
-          const after = x.slice(nlIndex + 1);
-          stdoutChunks.push(after);
-          const str = Buffer.concat([...stdoutChunks, before]).toString(
-            "utf-8",
-          );
-          const req = this.requests.shift()!;
-          if (this.requests.length === 0) {
-            this.proc.unref();
-          }
-          //logger.info(`got response: ${str}`);
-          req.p.resolve(JSON.parse(str));
-        } else {
-          stdoutChunks.push(x);
-        }
-      } else {
-        throw Error(`unexpected data chunk type (${typeof x})`);
-      }
-    });
-  }
-
-  async setupRefreshPlanchet(req: {
-    transfer_secret: string;
-    coin_index: number;
-  }): Promise<{
-    coin_pub: string;
-    coin_priv: string;
-    blinding_key: string;
-  }> {
-    return this.queueRequest({
-      op: "setup_refresh_planchet",
-      args: req,
-    });
-  }
-
-  async queueRequest(req: any): Promise<any> {
-    const p = openPromise<any>();
-    if (this.requests.length === 0) {
-      this.proc.ref();
-    }
-    this.requests.push({ req, p });
-    this.proc.stdin.write(JSON.stringify(req) + "\n");
-    return p.promise;
-  }
-
-  async eddsaVerify(req: {
-    msg: string;
-    sig: string;
-    pub: string;
-  }): Promise<{ valid: boolean }> {
-    return this.queueRequest({
-      op: "eddsa_verify",
-      args: req,
-    });
-  }
-
-  async eddsaSign(req: {
-    msg: string;
-    priv: string;
-  }): Promise<{ sig: string }> {
-    return this.queueRequest({
-      op: "eddsa_sign",
-      args: req,
-    });
-  }
-}
-
-/**
- * The synchronous crypto worker produced by this factory doesn't run in the
- * background, but actually blocks the caller until the operation is done.
- */
-export class SynchronousCryptoWorkerFactory implements CryptoWorkerFactory {
-  startWorker(): CryptoWorker {
-    if (typeof require === "undefined") {
-      throw Error("cannot make worker, require(...) not defined");
-    }
-    return new SynchronousCryptoWorker();
-  }
-
-  getConcurrency(): number {
-    return 1;
-  }
-}
-
 /**
  * Worker implementation that uses node subprocesses.
  */
@@ -157,14 +38,9 @@ export class SynchronousCryptoWorker {
    */
   onerror: undefined | ((m: any) => void);
 
-  primitiveWorker: PrimitiveWorker;
+  constructor(private primitiveWorker?: PrimitiveWorker) {
-
-  constructor() {
     this.onerror = undefined;
     this.onmessage = undefined;
-    if (process.env["TALER_WALLET_PRIMITIVE_WORKER"]) {
-      this.primitiveWorker = new MyPrimitiveWorker();
-    }
   }
 
   /**

packages/taler-wallet-core/src/crypto/workers/synchronousWorkerFactory.ts

@@ -0,0 +1,153 @@
+/*
+ This file is part of GNU Taler
+ (C) 2019 GNUnet e.V.
+
+ 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/>
+ */
+
+import {
+  PrimitiveWorker,
+} from "./cryptoImplementation.js";
+
+import { CryptoWorkerFactory } from "./cryptoApi.js";
+import { CryptoWorker } from "./cryptoWorkerInterface.js";
+
+import child_process from "child_process";
+import type internal from "stream";
+import { OpenedPromise, openPromise } from "../../index.js";
+import { Logger } from "@gnu-taler/taler-util";
+import { SynchronousCryptoWorker } from "./synchronousWorker.js";
+
+const logger = new Logger("synchronousWorkerFactory.ts");
+
+class MyPrimitiveWorker implements PrimitiveWorker {
+  proc: child_process.ChildProcessByStdio<
+    internal.Writable,
+    internal.Readable,
+    null
+  >;
+  requests: Array<{
+    p: OpenedPromise<any>;
+    req: any;
+  }> = [];
+
+  constructor() {
+    const stdoutChunks: Buffer[] = [];
+    this.proc = child_process.spawn("taler-crypto-worker", {
+      //stdio: ["pipe", "pipe", "inherit"],
+      stdio: ["pipe", "pipe", "inherit"],
+      detached: true,
+    });
+    this.proc.on("close", (): void => {
+      logger.error("child process exited");
+    });
+    (this.proc.stdout as any).unref();
+    (this.proc.stdin as any).unref();
+    this.proc.unref();
+
+    this.proc.stdout.on("data", (x) => {
+      // console.log("got chunk", x.toString("utf-8"));
+      if (x instanceof Buffer) {
+        const nlIndex = x.indexOf("\n");
+        if (nlIndex >= 0) {
+          const before = x.slice(0, nlIndex);
+          const after = x.slice(nlIndex + 1);
+          stdoutChunks.push(after);
+          const str = Buffer.concat([...stdoutChunks, before]).toString(
+            "utf-8",
+          );
+          const req = this.requests.shift();
+          if (!req) {
+            throw Error("request was undefined")
+          }
+          if (this.requests.length === 0) {
+            this.proc.unref();
+          }
+          //logger.info(`got response: ${str}`);
+          req.p.resolve(JSON.parse(str));
+        } else {
+          stdoutChunks.push(x);
+        }
+      } else {
+        throw Error(`unexpected data chunk type (${typeof x})`);
+      }
+    });
+  }
+
+  async setupRefreshPlanchet(req: {
+    transfer_secret: string;
+    coin_index: number;
+  }): Promise<{
+    coin_pub: string;
+    coin_priv: string;
+    blinding_key: string;
+  }> {
+    return this.queueRequest({
+      op: "setup_refresh_planchet",
+      args: req,
+    });
+  }
+
+  async queueRequest(req: any): Promise<any> {
+    const p = openPromise<any>();
+    if (this.requests.length === 0) {
+      this.proc.ref();
+    }
+    this.requests.push({ req, p });
+    this.proc.stdin.write(`${JSON.stringify(req)}\n`);
+    return p.promise;
+  }
+
+  async eddsaVerify(req: {
+    msg: string;
+    sig: string;
+    pub: string;
+  }): Promise<{ valid: boolean }> {
+    return this.queueRequest({
+      op: "eddsa_verify",
+      args: req,
+    });
+  }
+
+  async eddsaSign(req: {
+    msg: string;
+    priv: string;
+  }): Promise<{ sig: string }> {
+    return this.queueRequest({
+      op: "eddsa_sign",
+      args: req,
+    });
+  }
+}
+
+/**
+ * The synchronous crypto worker produced by this factory doesn't run in the
+ * background, but actually blocks the caller until the operation is done.
+ */
+export class SynchronousCryptoWorkerFactory implements CryptoWorkerFactory {
+  startWorker(): CryptoWorker {
+    if (typeof require === "undefined") {
+      throw Error("cannot make worker, require(...) not defined");
+    }
+
+    let primitiveWorker;
+    if (process.env["TALER_WALLET_PRIMITIVE_WORKER"]) {
+      primitiveWorker = new MyPrimitiveWorker();
+    }
+
+    return new SynchronousCryptoWorker(primitiveWorker);
+  }
+
+  getConcurrency(): number {
+    return 1;
+  }
+}

packages/taler-wallet-core/src/index.ts

@@ -36,6 +36,7 @@ export * from "./db-utils.js";
 export { CryptoImplementation } from "./crypto/workers/cryptoImplementation.js";
 export type { CryptoWorker } from "./crypto/workers/cryptoWorkerInterface.js";
 export { CryptoWorkerFactory, CryptoApi } from "./crypto/workers/cryptoApi.js";
+export { SynchronousCryptoWorker } from "./crypto/workers/synchronousWorker.js"
 
 export * from "./pending-types.js";