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/*
This file is part of GNU Taler
(C) 2020 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/>
*/
/**
* Sample fault injection test.
*/
/**
* Imports.
*/
import {
GlobalTestState,
MerchantService,
ExchangeService,
setupDb,
BankService,
WalletCli,
MerchantPrivateApi,
BankApi,
BankAccessApi,
} from "./harness";
import {
FaultInjectedExchangeService,
FaultInjectionRequestContext,
FaultInjectionResponseContext,
} from "./faultInjection";
import { CoreApiResponse } from "@gnu-taler/taler-wallet-core";
import { defaultCoinConfig } from "./denomStructures";
/**
* Run test for basic, bank-integrated withdrawal.
*/
export async function runPaymentFaultTest(t: GlobalTestState) {
// Set up test environment
const db = await setupDb(t);
const bank = await BankService.create(t, {
allowRegistrations: true,
currency: "TESTKUDOS",
database: db.connStr,
httpPort: 8082,
});
const exchange = ExchangeService.create(t, {
name: "testexchange-1",
currency: "TESTKUDOS",
httpPort: 8081,
database: db.connStr,
});
const exchangeBankAccount = await bank.createExchangeAccount(
"MyExchange",
"x",
);
bank.setSuggestedExchange(exchange, exchangeBankAccount.accountPaytoUri);
await bank.start();
await bank.pingUntilAvailable();
await exchange.addBankAccount("1", exchangeBankAccount);
exchange.addOfferedCoins(defaultCoinConfig);
await exchange.start();
await exchange.pingUntilAvailable();
const faultyExchange = new FaultInjectedExchangeService(t, exchange, 8091);
// Print all requests to the exchange
faultyExchange.faultProxy.addFault({
async modifyRequest(ctx: FaultInjectionRequestContext) {
console.log("got request", ctx);
},
async modifyResponse(ctx: FaultInjectionResponseContext) {
console.log("got response", ctx);
},
});
const merchant = await MerchantService.create(t, {
name: "testmerchant-1",
currency: "TESTKUDOS",
httpPort: 8083,
database: db.connStr,
});
merchant.addExchange(faultyExchange);
await merchant.start();
await merchant.pingUntilAvailable();
await merchant.addInstance({
id: "default",
name: "Default Instance",
paytoUris: [`payto://x-taler-bank/merchant-default`],
});
console.log("setup done!");
const wallet = new WalletCli(t);
// Create withdrawal operation
const user = await BankApi.createRandomBankUser(bank);
const wop = await BankAccessApi.createWithdrawalOperation(
bank,
user,
"TESTKUDOS:20",
);
// Hand it to the wallet
const r1 = await wallet.apiRequest("getWithdrawalDetailsForUri", {
talerWithdrawUri: wop.taler_withdraw_uri,
});
t.assertTrue(r1.type === "response");
await wallet.runPending();
// Confirm it
await BankApi.confirmWithdrawalOperation(bank, user, wop);
// Withdraw
const r2 = await wallet.apiRequest("acceptBankIntegratedWithdrawal", {
exchangeBaseUrl: faultyExchange.baseUrl,
talerWithdrawUri: wop.taler_withdraw_uri,
});
t.assertTrue(r2.type === "response");
await wallet.runUntilDone();
// Check balance
await wallet.getBalances();
// Set up order.
const orderResp = await MerchantPrivateApi.createOrder(merchant, "default", {
order: {
summary: "Buy me!",
amount: "TESTKUDOS:5",
fulfillment_url: "taler://fulfillment-success/thx",
},
});
let orderStatus = await MerchantPrivateApi.queryPrivateOrderStatus(merchant, {
orderId: orderResp.order_id,
});
t.assertTrue(orderStatus.order_status === "unpaid");
// Make wallet pay for the order
let apiResp: CoreApiResponse;
apiResp = await wallet.apiRequest("preparePay", {
talerPayUri: orderStatus.taler_pay_uri,
});
t.assertTrue(apiResp.type === "response");
const proposalId = (apiResp.result as any).proposalId;
await wallet.runPending();
// Drop 3 responses from the exchange.
let faultCount = 0;
faultyExchange.faultProxy.addFault({
async modifyResponse(ctx: FaultInjectionResponseContext) {
if (!ctx.request.requestUrl.endsWith("/deposit")) {
return;
}
if (faultCount < 3) {
faultCount++;
ctx.dropResponse = true;
}
},
});
// confirmPay won't work, as the exchange is unreachable
apiResp = await wallet.apiRequest("confirmPay", {
// FIXME: should be validated, don't cast!
proposalId: proposalId,
});
await wallet.runUntilDone();
// Check if payment was successful.
orderStatus = await MerchantPrivateApi.queryPrivateOrderStatus(merchant, {
orderId: orderResp.order_id,
});
t.assertTrue(orderStatus.order_status === "paid");
}
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