[GNUnet-SVN] [taler-wallet-webex] 09/10: start with an actual wallet cli

[gnunet]

This is an automated email from the git hooks/post-receive script.

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

commit 5ff600fed792919938facfae07be3a73cb4bfb36
Author: Florian Dold <address@hidden>
AuthorDate: Sat Aug 17 01:54:01 2019 +0200

    start with an actual wallet cli
---
 package.json                         |   2 +-
 src/db.ts                            |   5 +
 src/headless/bank.ts                 | 102 ++++++++++++++++
 src/headless/helpers.ts              | 229 +++++++++++++++++++++++++++++++++++
 src/headless/taler-wallet-cli.ts     |   1 +
 src/headless/taler-wallet-testing.ts | 155 ++++++++++++++++++++++++
 src/wallet.ts                        |   3 +
 yarn.lock                            |   8 +-
 8 files changed, 500 insertions(+), 5 deletions(-)

diff --git a/package.json b/package.json
index 6bdf9c9a..e1992490 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "@types/urijs": "^1.19.3",
     "axios": "^0.19.0",
     "commander": "^2.20.0",
-    "idb-bridge": "^0.0.5",
+    "idb-bridge": "^0.0.6",
     "source-map-support": "^0.5.12",
     "urijs": "^1.18.10"
   }
diff --git a/src/db.ts b/src/db.ts
index 0916ef14..4fe7f81a 100644
--- a/src/db.ts
+++ b/src/db.ts
@@ -12,13 +12,17 @@ export function openTalerDb(
   onVersionChange: () => void,
   onUpgradeUnsupported: (oldVersion: number, newVersion: number) => void,
 ): Promise<IDBDatabase> {
+  console.log("in openTalerDb");
   return new Promise<IDBDatabase>((resolve, reject) => {
+    console.log("calling factory.open");
     const req = idbFactory.open(DB_NAME, WALLET_DB_VERSION);
+    console.log("after factory.open");
     req.onerror = e => {
       console.log("taler database error", e);
       reject(e);
     };
     req.onsuccess = e => {
+      console.log("in openTalerDb onsuccess");
       req.result.onversionchange = (evt: IDBVersionChangeEvent) => {
         console.log(
           `handling live db version change from ${evt.oldVersion} to ${
@@ -31,6 +35,7 @@ export function openTalerDb(
       resolve(req.result);
     };
     req.onupgradeneeded = e => {
+      console.log("in openTalerDb onupgradeneeded");
       const db = req.result;
       console.log(
         `DB: upgrade needed: oldVersion=${e.oldVersion}, newVersion=${
diff --git a/src/headless/bank.ts b/src/headless/bank.ts
new file mode 100644
index 00000000..0af9cb19
--- /dev/null
+++ b/src/headless/bank.ts
@@ -0,0 +1,102 @@
+/*
+ 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/>
+ */
+
+/**
+ * Helper functions to deal with the GNU Taler demo bank.
+ *
+ * Mostly useful for automated tests.
+ */
+
+/**
+ * Imports.
+ */
+import Axios from "axios";
+import querystring = require("querystring");
+import URI = require("urijs");
+
+export interface BankUser {
+  username: string;
+  password: string;
+}
+
+function makeId(length: number): string {
+  let result = "";
+  const characters =
+    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+  for (let i = 0; i < length; i++) {
+    result += characters.charAt(Math.floor(Math.random() * characters.length));
+  }
+  return result;
+}
+
+export class Bank {
+  constructor(private bankBaseUrl: string) {}
+
+  async createReserve(
+    bankUser: BankUser,
+    amount: string,
+    reservePub: string,
+    exchangePaytoUri: string,
+  ) {
+    const reqUrl = new URI("taler/withdraw")
+      .absoluteTo(this.bankBaseUrl)
+      .href();
+
+    const body = {
+      auth: { type: "basic" },
+      username: bankUser,
+      amount,
+      reserve_pub: reservePub,
+      exchange_wire_detail: exchangePaytoUri,
+    };
+
+    const resp = await Axios({
+      method: "post",
+      url: reqUrl,
+      data: body,
+      responseType: "json",
+      headers: {
+        "X-Taler-Bank-Username": bankUser.username,
+        "X-Taler-Bank-Password": bankUser.password,
+      },
+    });
+
+    if (resp.status != 200) {
+      throw Error("failed to create bank reserve");
+    }
+  }
+
+  async registerRandomUser(): Promise<BankUser> {
+    const reqUrl = new URI("register").absoluteTo(this.bankBaseUrl).href();
+    const randId = makeId(8);
+    const bankUser: BankUser = {
+      username: `testuser-${randId}`,
+      password: `testpw-${randId}`,
+    };
+
+    const resp = await Axios({
+      method: "post",
+      url: reqUrl,
+      data: querystring.stringify(bankUser),
+      responseType: "json",
+    });
+
+    if (resp.status != 200) {
+      throw Error("could not register bank user");
+    }
+    return bankUser;
+  }
+}
diff --git a/src/headless/helpers.ts b/src/headless/helpers.ts
new file mode 100644
index 00000000..0ac7accb
--- /dev/null
+++ b/src/headless/helpers.ts
@@ -0,0 +1,229 @@
+/*
+ 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/>
+ */
+
+/**
+ * Helpers to create headless wallets.
+ */
+
+/**
+ * Imports.
+ */
+import { Wallet } from "../wallet";
+import { Notifier, Badge } from "../walletTypes";
+import { MemoryBackend, BridgeIDBFactory, shimIndexedDB } from "idb-bridge";
+import { SynchronousCryptoWorkerFactory } from "../crypto/synchronousWorker";
+import { openTalerDb } from "../db";
+import Axios from "axios";
+import querystring = require("querystring");
+import { HttpRequestLibrary } from "../http";
+import * as amounts from "../amounts";
+import { Bank } from "./bank";
+
+import fs = require("fs");
+
+const enableTracing = false;
+
+class ConsoleNotifier implements Notifier {
+  notify(): void {
+    // nothing to do.
+  }
+}
+
+class ConsoleBadge implements Badge {
+  startBusy(): void {
+    enableTracing && console.log("NOTIFICATION: busy");
+  }
+  stopBusy(): void {
+    enableTracing && console.log("NOTIFICATION: busy end");
+  }
+  showNotification(): void {
+    enableTracing && console.log("NOTIFICATION: show");
+  }
+  clearNotification(): void {
+    enableTracing && console.log("NOTIFICATION: cleared");
+  }
+}
+
+export class NodeHttpLib implements HttpRequestLibrary {
+  async get(url: string): Promise<import("../http").HttpResponse> {
+    enableTracing && console.log("making GET request to", url);
+    const resp = await Axios({
+      method: "get",
+      url: url,
+      responseType: "json",
+    });
+    enableTracing && console.log("got response", resp.data);
+    enableTracing && console.log("resp type", typeof resp.data);
+    return {
+      responseJson: resp.data,
+      status: resp.status,
+    };
+  }
+
+  async postJson(
+    url: string,
+    body: any,
+  ): Promise<import("../http").HttpResponse> {
+    enableTracing && console.log("making POST request to", url);
+    const resp = await Axios({
+      method: "post",
+      url: url,
+      responseType: "json",
+      data: body,
+    });
+    enableTracing && console.log("got response", resp.data);
+    enableTracing && console.log("resp type", typeof resp.data);
+    return {
+      responseJson: resp.data,
+      status: resp.status,
+    };
+  }
+
+  async postForm(
+    url: string,
+    form: any,
+  ): Promise<import("../http").HttpResponse> {
+    enableTracing && console.log("making POST request to", url);
+    const resp = await Axios({
+      method: "post",
+      url: url,
+      data: querystring.stringify(form),
+      responseType: "json",
+    });
+    enableTracing && console.log("got response", resp.data);
+    enableTracing && console.log("resp type", typeof resp.data);
+    return {
+      responseJson: resp.data,
+      status: resp.status,
+    };
+  }
+}
+
+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;
+}
+
+/**
+ * Get a wallet instance with default settings for node.
+ */
+export async function getDefaultNodeWallet(
+  args: DefaultNodeWalletArgs = {},
+): Promise<Wallet> {
+  const myNotifier = new ConsoleNotifier();
+
+  const myBadge = new ConsoleBadge();
+
+  const myBackend = new MemoryBackend();
+  myBackend.enableTracing = false;
+
+  const storagePath = args.persistentStoragePath;
+  if (storagePath) {
+    console.log(`using storage path ${storagePath}`);
+
+    try {
+      const dbContentStr: string = fs.readFileSync(storagePath, { encoding: 
"utf-8" });
+      const dbContent = JSON.parse(dbContentStr);
+      myBackend.importDump(dbContent);
+      console.log("imported wallet");
+    } catch (e) {
+      console.log("could not read wallet file");
+    }
+
+    myBackend.afterCommitCallback = async () => {
+      console.log("in afterCommitCallback!");
+      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;
+
+  const myHttpLib = new NodeHttpLib();
+
+  const myVersionChange = () => {
+    console.error("version change requested, should not happen");
+    throw Error();
+  };
+
+  const myUnsupportedUpgrade = () => {
+    console.error("unsupported database migration");
+    throw Error();
+  };
+
+  shimIndexedDB(myBridgeIdbFactory);
+
+  console.log("opening taler DB");
+
+  const myDb = await openTalerDb(
+    myIdbFactory,
+    myVersionChange,
+    myUnsupportedUpgrade,
+  );
+
+  console.log("opened db");
+
+  return new Wallet(
+    myDb,
+    myHttpLib,
+    myBadge,
+    myNotifier,
+    new SynchronousCryptoWorkerFactory(),
+  );
+  //const myWallet = new Wallet(myDb, myHttpLib, myBadge, myNotifier, new 
NodeCryptoWorkerFactory());
+}
+
+export async function withdrawTestBalance(
+  myWallet: Wallet,
+  amount: string = "TESTKUDOS:10",
+  bankBaseUrl: string = "https://bank.test.taler.net/";,
+  exchangeBaseUrl: string = "https://exchange.test.taler.net/";,
+) {
+  const reserveResponse = await myWallet.createReserve({
+    amount: amounts.parseOrThrow("TESTKUDOS:10.0"),
+    exchange: exchangeBaseUrl,
+  });
+
+  const bank = new Bank(bankBaseUrl);
+
+  const bankUser = await bank.registerRandomUser();
+
+  console.log("bank user", bankUser);
+
+  const exchangePaytoUri = await myWallet.getExchangePaytoUri(
+    exchangeBaseUrl,
+    ["x-taler-bank"],
+  );
+
+  await bank.createReserve(
+    bankUser,
+    amount,
+    reserveResponse.reservePub,
+    exchangePaytoUri,
+  );
+
+  await myWallet.confirmReserve({ reservePub: reserveResponse.reservePub });
+
+  await myWallet.processReserve(reserveResponse.reservePub);
+}
diff --git a/src/headless/taler-wallet-cli.ts b/src/headless/taler-wallet-cli.ts
index 26f4521c..9c4a84e3 100644
--- a/src/headless/taler-wallet-cli.ts
+++ b/src/headless/taler-wallet-cli.ts
@@ -43,6 +43,7 @@ program
     const wallet = await getDefaultNodeWallet({
       persistentStoragePath: walletDbPath,
     });
+    console.log("got wallet");
     const balance = await wallet.getBalances();
     console.log(JSON.stringify(balance, undefined, 2));
     process.exit(0);
diff --git a/src/headless/taler-wallet-testing.ts 
b/src/headless/taler-wallet-testing.ts
new file mode 100644
index 00000000..cb0cfeac
--- /dev/null
+++ b/src/headless/taler-wallet-testing.ts
@@ -0,0 +1,155 @@
+/*
+ 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/>
+ */
+
+/**
+ * Integration tests against real Taler bank/exchange/merchant deployments.
+ */
+
+import { Wallet } from "../wallet";
+import * as amounts from "../amounts";
+import Axios from "axios";
+import URI = require("urijs");
+
+import { CheckPaymentResponse } from "../talerTypes";
+import { getDefaultNodeWallet, withdrawTestBalance } from "./helpers";
+import { Bank } from "./bank";
+
+const enableTracing = false;
+
+class MerchantBackendConnection {
+  constructor(
+    public merchantBaseUrl: string,
+    public merchantInstance: string,
+    public apiKey: string,
+  ) {}
+
+  async createOrder(
+    amount: string,
+    summary: string,
+    fulfillmentUrl: string,
+  ): Promise<{ orderId: string }> {
+    const reqUrl = new URI("order").absoluteTo(this.merchantBaseUrl).href();
+    const orderReq = {
+      order: {
+        amount,
+        summary,
+        fulfillment_url: fulfillmentUrl,
+        instance: this.merchantInstance,
+      },
+    };
+    const resp = await Axios({
+      method: "post",
+      url: reqUrl,
+      data: orderReq,
+      responseType: "json",
+      headers: {
+        Authorization: `ApiKey ${this.apiKey}`,
+      },
+    });
+    if (resp.status != 200) {
+      throw Error("failed to create bank reserve");
+    }
+    const orderId = resp.data.order_id;
+    if (!orderId) {
+      throw Error("no order id in response");
+    }
+    return { orderId };
+  }
+
+  async checkPayment(orderId: string): Promise<CheckPaymentResponse> {
+    const reqUrl = new URI("check-payment")
+      .absoluteTo(this.merchantBaseUrl)
+      .href();
+    const resp = await Axios({
+      method: "get",
+      url: reqUrl,
+      params: { order_id: orderId, instance: this.merchantInstance },
+      responseType: "json",
+      headers: {
+        Authorization: `ApiKey ${this.apiKey}`,
+      },
+    });
+    if (resp.status != 200) {
+      throw Error("failed to check payment");
+    }
+    return CheckPaymentResponse.checked(resp.data);
+  }
+}
+
+export async function main() {
+  const exchangeBaseUrl = "https://exchange.test.taler.net/";;
+  const bankBaseUrl = "https://bank.test.taler.net/";;
+
+  const myWallet = await getDefaultNodeWallet();
+
+  await withdrawTestBalance(myWallet);
+
+  const balance = await myWallet.getBalances();
+
+  console.log(JSON.stringify(balance, null, 2));
+
+  const myMerchant = new MerchantBackendConnection(
+    "https://backend.test.taler.net/";,
+    "default",
+    "sandbox",
+  );
+
+  const orderResp = await myMerchant.createOrder(
+    "TESTKUDOS:5",
+    "hello world",
+    "https://example.com/";,
+  );
+
+  console.log("created order with orderId", orderResp.orderId);
+
+  const paymentStatus = await myMerchant.checkPayment(orderResp.orderId);
+
+  console.log("payment status", paymentStatus);
+
+  const contractUrl = paymentStatus.contract_url;
+  if (!contractUrl) {
+    throw Error("no contract URL in payment response");
+  }
+
+  const proposalId = await myWallet.downloadProposal(contractUrl);
+
+  console.log("proposal id", proposalId);
+
+  const checkPayResult = await myWallet.checkPay(proposalId);
+
+  console.log("check pay result", checkPayResult);
+
+  const confirmPayResult = await myWallet.confirmPay(proposalId, undefined);
+
+  console.log("confirmPayResult", confirmPayResult);
+
+  const paymentStatus2 = await myMerchant.checkPayment(orderResp.orderId);
+
+  console.log("payment status after wallet payment:", paymentStatus2);
+
+  if (!paymentStatus2.paid) {
+    throw Error("payment did not succeed");
+  }
+
+  myWallet.stop();
+}
+
+if (require.main === module) {
+  main().catch(err => {
+    console.error("Failed with exception:");
+    console.error(err);
+  });
+}
diff --git a/src/wallet.ts b/src/wallet.ts
index ffdb60fa..c8dd56bb 100644
--- a/src/wallet.ts
+++ b/src/wallet.ts
@@ -3413,11 +3413,14 @@ export class Wallet {
       .deleteIf(Stores.exchanges, gcExchange)
       .finish();
 
+    // FIXME: check if this is correct!
     const gcDenominations = (d: DenominationRecord, n: number) => {
       if (nowSec > getTalerStampSec(d.stampExpireDeposit)!) {
+        console.log("garbage-collecting denomination due to expiration");
         return true;
       }
       if (activeExchanges.indexOf(d.exchangeBaseUrl) < 0) {
+        console.log("garbage-collecting denomination due to missing exchange");
         return true;
       }
       return false;
diff --git a/yarn.lock b/yarn.lock
index 01452d3c..8e2162ca 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3240,10 +3240,10 @@ iconv-lite@^0.4.4, iconv-lite@~0.4.13:
   dependencies:
     safer-buffer ">= 2.1.2 < 3"
 
-idb-bridge@^0.0.5:
-  version "0.0.5"
-  resolved 
"https://registry.yarnpkg.com/idb-bridge/-/idb-bridge-0.0.5.tgz#fb26ddc3183229ae54f31c4b8709312b57735fed";
-  integrity 
sha512-ya5Hf5R6S0Pimeg6+8iL4MYR7duwywtZ2Dxm/HIdY4JIee9cITfuNIRRXOEQhxUxZdbYQeqjNYIRnK5bAQSUUw==
+idb-bridge@^0.0.6:
+  version "0.0.6"
+  resolved 
"https://registry.yarnpkg.com/idb-bridge/-/idb-bridge-0.0.6.tgz#efdf7e6fdb3deec14e4b84c70b0af72e78a52d4d";
+  integrity 
sha512-0IjViZiibJxHNKJw1D+trd+TS1wDRUUCTstz4ga6uc3Nje4qXOrVDaF56COcvOYywY9w6YCVtN52Am6+Ce85QQ==
 
 ieee754@^1.1.4:
   version "1.1.13"

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