wallet-core: balance limits for withdrawal

2 files changed, 268 insertions, 0 deletions

diff --git a/packages/taler-harness/src/integrationtests/test-kyc-balance-withdrawal.ts b/packages/taler-harness/src/integrationtests/test-kyc-balance-withdrawal.ts
new file mode 100644
index 000000000..d7c02718b
--- /dev/null
+++ b/packages/taler-harness/src/integrationtests/test-kyc-balance-withdrawal.ts
@@ -0,0 +1,266 @@
+/*
+ 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/>
+ */
+
+/**
+ * Imports.
+ */
+import {
+  encodeCrock,
+  ExchangeWalletKycStatus,
+  hashPaytoUri,
+  j2s,
+  TalerCorebankApiClient,
+  TransactionIdStr,
+  TransactionMajorState,
+  TransactionMinorState,
+} from "@gnu-taler/taler-util";
+import {
+  createSyncCryptoApi,
+  EddsaKeypair,
+  WalletApiOperation,
+} from "@gnu-taler/taler-wallet-core";
+import { CoinConfig, defaultCoinConfig } from "../harness/denomStructures.js";
+import {
+  BankService,
+  DbInfo,
+  ExchangeService,
+  generateRandomPayto,
+  GlobalTestState,
+  HarnessExchangeBankAccount,
+  setupDb,
+  WalletClient,
+  WalletService,
+} from "../harness/harness.js";
+import {
+  EnvOptions,
+  postAmlDecisionNoRules,
+  withdrawViaBankV3,
+} from "../harness/helpers.js";
+
+interface KycTestEnv {
+  commonDb: DbInfo;
+  bankClient: TalerCorebankApiClient;
+  exchange: ExchangeService;
+  exchangeBankAccount: HarnessExchangeBankAccount;
+  walletClient: WalletClient;
+  walletService: WalletService;
+  amlKeypair: EddsaKeypair;
+}
+
+async function createKycTestkudosEnvironment(
+  t: GlobalTestState,
+  coinConfig: CoinConfig[] = defaultCoinConfig.map((x) => x("TESTKUDOS")),
+  opts: EnvOptions = {},
+): Promise<KycTestEnv> {
+  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,
+  });
+
+  let receiverName = "Exchange";
+  let exchangeBankUsername = "exchange";
+  let exchangeBankPassword = "mypw";
+  let exchangePaytoUri = generateRandomPayto(exchangeBankUsername);
+
+  await exchange.addBankAccount("1", {
+    accountName: exchangeBankUsername,
+    accountPassword: exchangeBankPassword,
+    wireGatewayApiBaseUrl: new URL(
+      "accounts/exchange/taler-wire-gateway/",
+      bank.baseUrl,
+    ).href,
+    accountPaytoUri: exchangePaytoUri,
+  });
+
+  bank.setSuggestedExchange(exchange, exchangePaytoUri);
+
+  await bank.start();
+
+  await bank.pingUntilAvailable();
+
+  const bankClient = new TalerCorebankApiClient(bank.corebankApiBaseUrl, {
+    auth: {
+      username: "admin",
+      password: "adminpw",
+    },
+  });
+
+  await bankClient.registerAccountExtended({
+    name: receiverName,
+    password: exchangeBankPassword,
+    username: exchangeBankUsername,
+    is_taler_exchange: true,
+    payto_uri: exchangePaytoUri,
+  });
+
+  exchange.addCoinConfigList(coinConfig);
+
+  await exchange.modifyConfig(async (config) => {
+    config.setString("exchange", "enable_kyc", "yes");
+
+    config.setString("KYC-RULE-R1", "operation_type", "balance");
+    config.setString("KYC-RULE-R1", "enabled", "yes");
+    config.setString("KYC-RULE-R1", "exposed", "yes");
+    config.setString("KYC-RULE-R1", "is_and_combinator", "yes");
+    config.setString("KYC-RULE-R1", "threshold", "TESTKUDOS:10");
+    config.setString("KYC-RULE-R1", "timeframe", "forever");
+    config.setString("KYC-RULE-R1", "next_measures", "M1");
+
+    config.setString("KYC-MEASURE-M1", "check_name", "C1");
+    config.setString("KYC-MEASURE-M1", "context", "{}");
+    config.setString("KYC-MEASURE-M1", "program", "P1");
+
+    config.setString("AML-PROGRAM-P1", "command", "/bin/true");
+    config.setString("AML-PROGRAM-P1", "enabled", "true");
+    config.setString("AML-PROGRAM-P1", "description", "this does nothing");
+    config.setString("AML-PROGRAM-P1", "fallback", "M1");
+
+    config.setString("KYC-CHECK-C1", "type", "INFO");
+    config.setString("KYC-CHECK-C1", "description", "my check!");
+    config.setString("KYC-CHECK-C1", "fallback", "M1");
+  });
+
+  await exchange.start();
+
+  const cryptoApi = createSyncCryptoApi();
+  const amlKeypair = await cryptoApi.createEddsaKeypair({});
+
+  await exchange.enableAmlAccount(amlKeypair.pub, "Alice");
+
+  const walletService = new WalletService(t, {
+    name: "wallet",
+    useInMemoryDb: true,
+  });
+  await walletService.start();
+  await walletService.pingUntilAvailable();
+
+  const walletClient = new WalletClient({
+    name: "wallet",
+    unixPath: walletService.socketPath,
+    onNotification(n) {
+      console.log("got notification", n);
+    },
+  });
+  await walletClient.connect();
+  await walletClient.client.call(WalletApiOperation.InitWallet, {
+    config: {
+      testing: {
+        skipDefaults: true,
+      },
+    },
+  });
+
+  console.log("setup done!");
+
+  return {
+    commonDb: db,
+    exchange,
+    amlKeypair,
+    walletClient,
+    walletService,
+    bankClient,
+    exchangeBankAccount: {
+      accountName: "",
+      accountPassword: "",
+      accountPaytoUri: "",
+      wireGatewayApiBaseUrl: "",
+    },
+  };
+}
+
+export async function runKycBalanceWithdrawalTest(t: GlobalTestState) {
+  // Set up test environment
+
+  const { walletClient, bankClient, exchange, amlKeypair } =
+    await createKycTestkudosEnvironment(t);
+
+  // Withdraw digital cash into the wallet.
+
+  const wres = await withdrawViaBankV3(t, {
+    amount: "TESTKUDOS:20",
+    bankClient,
+    exchange,
+    walletClient,
+  });
+
+  await walletClient.call(WalletApiOperation.TestingWaitTransactionState, {
+    transactionId: wres.transactionId as TransactionIdStr,
+    txState: {
+      major: TransactionMajorState.Pending,
+      minor: TransactionMinorState.BalanceKycRequired,
+    },
+  });
+
+  {
+    const exchangeEntry = await walletClient.call(
+      WalletApiOperation.GetExchangeEntryByUrl,
+      {
+        exchangeBaseUrl: exchange.baseUrl,
+      },
+    );
+    console.log(j2s(exchangeEntry));
+  }
+
+  await walletClient.call(WalletApiOperation.TestingWaitExchangeState, {
+    exchangeBaseUrl: exchange.baseUrl,
+    walletKycStatus: ExchangeWalletKycStatus.Legi,
+  });
+
+  {
+    const exchangeEntry = await walletClient.call(
+      WalletApiOperation.GetExchangeEntryByUrl,
+      {
+        exchangeBaseUrl: exchange.baseUrl,
+      },
+    );
+    console.log(j2s(exchangeEntry));
+    t.assertDeepEqual(
+      exchangeEntry.walletKycStatus,
+      ExchangeWalletKycStatus.Legi,
+    );
+
+    const kycReservePub = exchangeEntry.walletKycReservePub;
+    t.assertTrue(!!kycReservePub);
+
+    // FIXME: Create/user helper function for this!
+    const hPayto = hashPaytoUri(
+      `payto://taler-reserve-http/localhost:${exchange.port}/${kycReservePub}`,
+    );
+
+    await postAmlDecisionNoRules(t, {
+      amlPriv: amlKeypair.priv,
+      amlPub: amlKeypair.pub,
+      exchangeBaseUrl: exchange.baseUrl,
+      paytoHash: encodeCrock(hPayto),
+    });
+  }
+
+  // Now after KYC is done for the balance, the withdrawal should finish
+  await wres.withdrawalFinishedCond;
+}
+
+runKycBalanceWithdrawalTest.suites = ["wallet"];
diff --git a/packages/taler-harness/src/integrationtests/testrunner.ts b/packages/taler-harness/src/integrationtests/testrunner.ts
index 5c4ba41d9..79a504c3b 100644
--- a/packages/taler-harness/src/integrationtests/testrunner.ts
+++ b/packages/taler-harness/src/integrationtests/testrunner.ts
@@ -47,6 +47,7 @@ import { runExchangePurseTest } from "./test-exchange-purse.js";
 import { runExchangeTimetravelTest } from "./test-exchange-timetravel.js";
 import { runFeeRegressionTest } from "./test-fee-regression.js";
 import { runForcedSelectionTest } from "./test-forced-selection.js";
+import { runKycBalanceWithdrawalTest } from "./test-kyc-balance-withdrawal.js";
 import { runKycDepositAggregateTest } from "./test-kyc-deposit-aggregate.js";
 import { runKycExchangeWalletTest } from "./test-kyc-exchange-wallet.js";
 import { runKycFormWithdrawalTest } from "./test-kyc-form-withdrawal.js";
@@ -256,6 +257,7 @@ const allTests: TestMainFunction[] = [
   runKycPeerPullTest,
   runKycDepositAggregateTest,
   runKycFormWithdrawalTest,
+  runKycBalanceWithdrawalTest,
 ];
 
 export interface TestRunSpec {