[taler-wallet-core] branch master updated: fixes and polyfills for quickjs

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dold pushed a commit to branch master
in repository wallet-core.

The following commit(s) were added to refs/heads/master by this push:
     new 233a354b4 fixes and polyfills for quickjs
233a354b4 is described below

commit 233a354b4728b5efc76d19a530ad85a3a3e2a3d2
Author: Florian Dold <florian@dold.me>
AuthorDate: Fri Nov 11 20:52:45 2022 +0100

    fixes and polyfills for quickjs
---
 packages/taler-util/src/base64.ts                  |  64 ++++++++++++
 packages/taler-util/src/index.ts                   |   1 +
 packages/taler-util/src/taler-crypto.ts            |   2 -
 packages/taler-wallet-core/src/bank-api-client.ts  |   4 +-
 .../taler-wallet-core/src/operations/testing.ts    |   5 +-
 packages/taler-wallet-core/src/util/http.ts        |   2 +-
 packages/taler-wallet-core/src/util/timer.ts       |   4 +-
 packages/taler-wallet-embedded/build.mjs           |   1 +
 packages/taler-wallet-embedded/src/wallet-qjs.ts   | 112 ++++++++++++++++++++-
 9 files changed, 184 insertions(+), 11 deletions(-)

diff --git a/packages/taler-util/src/base64.ts 
b/packages/taler-util/src/base64.ts
new file mode 100644
index 000000000..5d39ee581
--- /dev/null
+++ b/packages/taler-util/src/base64.ts
@@ -0,0 +1,64 @@
+// Converts an ArrayBuffer directly to base64, without any intermediate 
'convert to string then
+// use window.btoa' step. According to my tests, this appears to be a faster 
approach:
+// http://jsperf.com/encoding-xhr-image-data/5
+
+/*
+MIT LICENSE
+Copyright 2011 Jon Leighton
+Permission is hereby granted, free of charge, to any person obtaining a copy 
of this software and associated documentation files (the "Software"), to deal 
in the Software without restriction, including without limitation the rights to 
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 
of the Software, and to permit persons to whom the Software is furnished to do 
so, subject to the following conditions:
+The above copyright notice and this permission notice shall be included in all 
copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
SOFTWARE.
+*/
+
+export function base64FromArrayBuffer(arrayBuffer: ArrayBuffer): string {
+  var base64 = "";
+  var encodings =
+    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+  var bytes = new Uint8Array(arrayBuffer);
+  var byteLength = bytes.byteLength;
+  var byteRemainder = byteLength % 3;
+  var mainLength = byteLength - byteRemainder;
+
+  var a, b, c, d;
+  var chunk;
+
+  // Main loop deals with bytes in chunks of 3
+  for (var i = 0; i < mainLength; i = i + 3) {
+    // Combine the three bytes into a single integer
+    chunk = (bytes[i] << 16) | (bytes[i + 1] << 8) | bytes[i + 2];
+
+    // Use bitmasks to extract 6-bit segments from the triplet
+    a = (chunk & 16515072) >> 18; // 16515072 = (2^6 - 1) << 18
+    b = (chunk & 258048) >> 12; // 258048   = (2^6 - 1) << 12
+    c = (chunk & 4032) >> 6; // 4032     = (2^6 - 1) << 6
+    d = chunk & 63; // 63       = 2^6 - 1
+
+    // Convert the raw binary segments to the appropriate ASCII encoding
+    base64 += encodings[a] + encodings[b] + encodings[c] + encodings[d];
+  }
+
+  // Deal with the remaining bytes and padding
+  if (byteRemainder == 1) {
+    chunk = bytes[mainLength];
+
+    a = (chunk & 252) >> 2; // 252 = (2^6 - 1) << 2
+
+    // Set the 4 least significant bits to zero
+    b = (chunk & 3) << 4; // 3   = 2^2 - 1
+
+    base64 += encodings[a] + encodings[b] + "==";
+  } else if (byteRemainder == 2) {
+    chunk = (bytes[mainLength] << 8) | bytes[mainLength + 1];
+
+    a = (chunk & 64512) >> 10; // 64512 = (2^6 - 1) << 10
+    b = (chunk & 1008) >> 4; // 1008  = (2^6 - 1) << 4
+
+    // Set the 2 least significant bits to zero
+    c = (chunk & 15) << 2; // 15    = 2^4 - 1
+
+    base64 += encodings[a] + encodings[b] + encodings[c] + "=";
+  }
+
+  return base64;
+}
diff --git a/packages/taler-util/src/index.ts b/packages/taler-util/src/index.ts
index 1d55da068..0c0ed25e8 100644
--- a/packages/taler-util/src/index.ts
+++ b/packages/taler-util/src/index.ts
@@ -33,3 +33,4 @@ export {
 export { RequestThrottler } from "./RequestThrottler.js";
 export * from "./CancellationToken.js";
 export * from "./contract-terms.js";
+export * from "./base64.js";
diff --git a/packages/taler-util/src/taler-crypto.ts 
b/packages/taler-util/src/taler-crypto.ts
index b4b96afbc..6ec50f4d2 100644
--- a/packages/taler-util/src/taler-crypto.ts
+++ b/packages/taler-util/src/taler-crypto.ts
@@ -253,7 +253,6 @@ let decoder: any;
 
 export function stringToBytes(s: string): Uint8Array {
   if (!encoder) {
-    // @ts-ignore
     encoder = new TextEncoder();
   }
   return encoder.encode(s);
@@ -261,7 +260,6 @@ export function stringToBytes(s: string): Uint8Array {
 
 export function bytesToString(b: Uint8Array): string {
   if (!decoder) {
-    // @ts-ignore
     decoder = new TextDecoder();
   }
   return decoder.decode(b);
diff --git a/packages/taler-wallet-core/src/bank-api-client.ts 
b/packages/taler-wallet-core/src/bank-api-client.ts
index bfb06bb0f..dc7845150 100644
--- a/packages/taler-wallet-core/src/bank-api-client.ts
+++ b/packages/taler-wallet-core/src/bank-api-client.ts
@@ -23,6 +23,7 @@
  */
 import {
   AmountString,
+  base64FromArrayBuffer,
   buildCodecForObject,
   Codec,
   codecForAny,
@@ -31,6 +32,7 @@ import {
   getRandomBytes,
   j2s,
   Logger,
+  stringToBytes,
   TalerErrorCode,
 } from "@gnu-taler/taler-util";
 import { TalerError } from "./errors.js";
@@ -85,7 +87,7 @@ export interface HarnessExchangeBankAccount {
  */
 function makeBasicAuthHeader(username: string, password: string): string {
   const auth = `${username}:${password}`;
-  const authEncoded: string = Buffer.from(auth).toString("base64");
+  const authEncoded: string = base64FromArrayBuffer(stringToBytes(auth));
   return `Basic ${authEncoded}`;
 }
 
diff --git a/packages/taler-wallet-core/src/operations/testing.ts 
b/packages/taler-wallet-core/src/operations/testing.ts
index 9a11af8bb..50454a920 100644
--- a/packages/taler-wallet-core/src/operations/testing.ts
+++ b/packages/taler-wallet-core/src/operations/testing.ts
@@ -18,8 +18,10 @@
  * Imports.
  */
 import {
+  base64FromArrayBuffer,
   ConfirmPayResultType,
   Logger,
+  stringToBytes,
   TestPayResult,
   WithdrawTestBalanceRequest,
 } from "@gnu-taler/taler-util";
@@ -78,10 +80,11 @@ function makeId(length: number): string {
 
 /**
  * Helper function to generate the "Authorization" HTTP header.
+ * FIXME: redundant, put in taler-util
  */
 function makeBasicAuthHeader(username: string, password: string): string {
   const auth = `${username}:${password}`;
-  const authEncoded: string = Buffer.from(auth).toString("base64");
+  const authEncoded: string = base64FromArrayBuffer(stringToBytes(auth));
   return `Basic ${authEncoded}`;
 }
 
diff --git a/packages/taler-wallet-core/src/util/http.ts 
b/packages/taler-wallet-core/src/util/http.ts
index 0489f920b..118da40fe 100644
--- a/packages/taler-wallet-core/src/util/http.ts
+++ b/packages/taler-wallet-core/src/util/http.ts
@@ -68,7 +68,7 @@ export interface HttpRequestOptions {
    */
   cancellationToken?: CancellationToken;
 
-  body?: string | ArrayBuffer | ArrayBufferView;
+  body?: string | ArrayBuffer | Object;
 }
 
 /**
diff --git a/packages/taler-wallet-core/src/util/timer.ts 
b/packages/taler-wallet-core/src/util/timer.ts
index 8ec1a25f8..d198e03c9 100644
--- a/packages/taler-wallet-core/src/util/timer.ts
+++ b/packages/taler-wallet-core/src/util/timer.ts
@@ -53,7 +53,7 @@ class IntervalHandle {
    * only event left.  Has no effect in the browser.
    */
   unref(): void {
-    if (typeof this.h === "object") {
+    if (typeof this.h === "object" && "unref" in this.h) {
       this.h.unref();
     }
   }
@@ -71,7 +71,7 @@ class TimeoutHandle {
    * only event left.  Has no effect in the browser.
    */
   unref(): void {
-    if (typeof this.h === "object") {
+    if (typeof this.h === "object" && "unref" in this.h) {
       this.h.unref();
     }
   }
diff --git a/packages/taler-wallet-embedded/build.mjs 
b/packages/taler-wallet-embedded/build.mjs
index 3507480c6..0f12ef2c6 100755
--- a/packages/taler-wallet-embedded/build.mjs
+++ b/packages/taler-wallet-embedded/build.mjs
@@ -51,6 +51,7 @@ export const buildConfig = {
   target: [
     'es2020'
   ],
+  external: ["os"],
   format: 'esm',
   platform: 'neutral',
   mainFields: ["module", "main"],
diff --git a/packages/taler-wallet-embedded/src/wallet-qjs.ts 
b/packages/taler-wallet-embedded/src/wallet-qjs.ts
index 69cecb828..21796870a 100644
--- a/packages/taler-wallet-embedded/src/wallet-qjs.ts
+++ b/packages/taler-wallet-embedded/src/wallet-qjs.ts
@@ -23,6 +23,7 @@ import {
   getErrorDetailFromException,
   handleWorkerError,
   handleWorkerMessage,
+  Headers,
   HttpRequestLibrary,
   HttpRequestOptions,
   HttpResponse,
@@ -31,13 +32,16 @@ import {
   SetTimeoutTimerAPI,
   SynchronousCryptoWorkerFactoryPlain,
   Wallet,
+  WalletApiOperation,
 } from "@gnu-taler/taler-wallet-core";
 
 import {
   CoreApiEnvelope,
   CoreApiResponse,
   CoreApiResponseSuccess,
+  j2s,
   Logger,
+  setGlobalLogLevelFromString,
   WalletNotification,
 } from "@gnu-taler/taler-util";
 import { BridgeIDBFactory } from "@gnu-taler/idb-bridge";
@@ -45,6 +49,31 @@ import { MemoryBackend } from "@gnu-taler/idb-bridge";
 import { shimIndexedDB } from "@gnu-taler/idb-bridge";
 import { IDBFactory } from "@gnu-taler/idb-bridge";
 
+import * as _qjsOsImp from "os";
+
+const textDecoder = new TextDecoder();
+const textEncoder = new TextEncoder();
+
+export interface QjsHttpResp {
+  status: number;
+  data: ArrayBuffer;
+}
+
+export interface QjsHttpOptions {
+  method: string;
+  debug?: boolean;
+  data?: ArrayBuffer;
+  headers?: string[];
+}
+
+export interface QjsOsLib {
+  // Not async!
+  fetchHttp(url: string, options?: QjsHttpOptions): QjsHttpResp;
+}
+
+// This is not the nodejs "os" module, but the qjs "os" module.
+const qjsOs: QjsOsLib = _qjsOsImp as any;
+
 export { handleWorkerError, handleWorkerMessage };
 
 const logger = new Logger("taler-wallet-embedded/index.ts");
@@ -54,20 +83,73 @@ export class NativeHttpLib implements HttpRequestLibrary {
     url: string,
     opt?: HttpRequestOptions | undefined,
   ): Promise<HttpResponse> {
-    throw new Error("Method not implemented.");
+    return this.fetch(url, {
+      method: "GET",
+      ...opt,
+    });
   }
   postJson(
     url: string,
     body: any,
     opt?: HttpRequestOptions | undefined,
   ): Promise<HttpResponse> {
-    throw new Error("Method not implemented.");
+    return this.fetch(url, {
+      method: "POST",
+      body,
+      ...opt,
+    });
   }
-  fetch(
+  async fetch(
     url: string,
     opt?: HttpRequestOptions | undefined,
   ): Promise<HttpResponse> {
-    throw new Error("Method not implemented.");
+    const method = opt?.method ?? "GET";
+    let data: ArrayBuffer | undefined = undefined;
+    let headers: string[] = [];
+    if (opt?.headers) {
+      for (let headerName of Object.keys(opt.headers)) {
+        headers.push(`${headerName}: ${opt.headers[headerName]}`);
+      }
+    }
+    if (method.toUpperCase() === "POST") {
+      if (opt?.body) {
+        if (typeof opt.body === "string") {
+          data = textEncoder.encode(opt.body).buffer;
+        } else if (ArrayBuffer.isView(opt.body)) {
+          data = opt.body.buffer;
+        } else if (opt.body instanceof ArrayBuffer) {
+          data = opt.body;
+        } else if (typeof opt.body === "object") {
+          data = textEncoder.encode(JSON.stringify(opt.body)).buffer;
+        }
+      } else {
+        data = new ArrayBuffer(0);
+      }
+    }
+    console.log(`data type ${data?.constructor.name}`);
+    console.log(`data: ${j2s(data)}`);
+    const res = qjsOs.fetchHttp(url, {
+      method,
+      data,
+      headers,
+    });
+    return {
+      requestMethod: method,
+      headers: new Headers(),
+      async bytes() {
+        return res.data;
+      },
+      json() {
+        const text = textDecoder.decode(res.data);
+        return JSON.parse(text);
+      },
+      async text() {
+        const text = textDecoder.decode(res.data);
+        return text;
+      },
+      requestUrl: url,
+      status: res.status,
+    };
   }
 }
 
@@ -268,6 +350,7 @@ class NativeWalletMessageHandler {
 }
 
 export function installNativeWalletListener(): void {
+  setGlobalLogLevelFromString("trace");
   const handler = new NativeWalletMessageHandler();
   const onMessage = async (msgStr: any): Promise<void> => {
     if (typeof msgStr !== "string") {
@@ -311,3 +394,24 @@ export function installNativeWalletListener(): void {
 
 // @ts-ignore
 globalThis.installNativeWalletListener = installNativeWalletListener;
+
+// @ts-ignore
+globalThis.makeWallet = getWallet;
+
+export async function testWithGv() {
+  const w = await getWallet();
+  await w.wallet.client.call(WalletApiOperation.InitWallet, {});
+  await w.wallet.client.call(WalletApiOperation.RunIntegrationTest, {
+    amountToSpend: "KUDOS:1",
+    amountToWithdraw: "KUDOS:3",
+    bankBaseUrl: "https://bank.demo.taler.net/demobanks/default/access-api/";,
+    exchangeBaseUrl: "https://exchange.demo.taler.net/";,
+    merchantBaseUrl: "https://backend.demo.taler.net/";,
+  });
+  await w.wallet.runTaskLoop({
+    stopWhenDone: true,
+  });
+}
+
+// @ts-ignore
+globalThis.testWithGv = testWithGv;

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