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/*
This file is part of TALER
(C) 2019 GNUnet e.V.
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.
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
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
import os = require("os");
import fs = require("fs");
import { getDefaultNodeWallet, withdrawTestBalance } from "./helpers";
import { MerchantBackendConnection } from "./merchant";
import { runIntegrationTest } from "./integrationtest";
import { Wallet } from "../wallet";
import qrcodeGenerator = require("qrcode-generator");
import * as clk from "./clk";
import { BridgeIDBFactory, MemoryBackend } from "idb-bridge";
import { Logger } from "../util/logging";
import * as Amounts from "../util/amounts";
import { decodeCrock } from "../crypto/talerCrypto";
import { OperationFailedAndReportedError } from "../wallet-impl/errors";
const logger = new Logger("taler-wallet-cli.ts");
const walletDbPath = os.homedir + "/" + ".talerwalletdb.json";
function assertUnreachable(x: never): never {
throw new Error("Didn't expect to get here");
}
async function doPay(
wallet: Wallet,
payUrl: string,
options: { alwaysYes: boolean } = { alwaysYes: true },
) {
const result = await wallet.preparePay(payUrl);
if (result.status === "error") {
console.error("Could not pay:", result.error);
process.exit(1);
return;
}
if (result.status === "insufficient-balance") {
console.log("contract", result.contractTerms!);
console.error("insufficient balance");
process.exit(1);
return;
}
if (result.status === "paid") {
console.log("already paid!");
process.exit(0);
return;
}
if (result.status === "payment-possible") {
console.log("paying ...");
} else {
throw Error("not reached");
}
console.log("contract", result.contractTerms!);
let pay;
if (options.alwaysYes) {
pay = true;
} else {
while (true) {
const yesNoResp = (await clk.prompt("Pay? [Y/n]")).toLowerCase();
if (yesNoResp === "" || yesNoResp === "y" || yesNoResp === "yes") {
pay = true;
break;
} else if (yesNoResp === "n" || yesNoResp === "no") {
pay = false;
break;
} else {
console.log("please answer y/n");
}
}
}
if (pay) {
const payRes = await wallet.confirmPay(result.proposalId, undefined);
console.log("paid!");
} else {
console.log("not paying");
}
}
function applyVerbose(verbose: boolean) {
if (verbose) {
console.log("enabled verbose logging");
BridgeIDBFactory.enableTracing = true;
}
}
function printVersion() {
const info = require("../../../package.json");
console.log(`${info.version}`);
process.exit(0);
}
const walletCli = clk
.program("wallet", {
help: "Command line interface for the GNU Taler wallet.",
})
.maybeOption("inhibit", ["--inhibit"], clk.STRING, {
help:
"Inhibit running certain operations, useful for debugging and testing.",
})
.flag("version", ["-v", "--version"], {
onPresentHandler: printVersion,
})
.flag("verbose", ["-V", "--verbose"], {
help: "Enable verbose output.",
});
type WalletCliArgsType = clk.GetArgType<typeof walletCli>;
async function withWallet<T>(
walletCliArgs: WalletCliArgsType,
f: (w: Wallet) => Promise<T>,
): Promise<T> {
const wallet = await getDefaultNodeWallet({
persistentStoragePath: walletDbPath,
});
applyVerbose(walletCliArgs.wallet.verbose);
try {
await wallet.fillDefaults();
const ret = await f(wallet);
return ret;
} catch (e) {
if (e instanceof OperationFailedAndReportedError) {
console.error("Operation failed: " + e.message);
console.log("Hint: check pending operations for details.");
} else {
console.error("caught exception:", e);
}
process.exit(1);
} finally {
wallet.stop();
}
}
walletCli
.subcommand("balance", "balance", { help: "Show wallet balance." })
.flag("json", ["--json"], {
help: "Show raw JSON.",
})
.action(async args => {
await withWallet(args, async wallet => {
const balance = await wallet.getBalances();
if (args.balance.json) {
console.log(JSON.stringify(balance, undefined, 2));
} else {
const currencies = Object.keys(balance.byCurrency).sort();
for (const c of currencies) {
console.log(Amounts.toString(balance.byCurrency[c].available));
}
}
});
});
walletCli
.subcommand("", "history", { help: "Show wallet event history." })
.maybeOption("from", ["--from"], clk.STRING)
.maybeOption("to", ["--to"], clk.STRING)
.maybeOption("limit", ["--limit"], clk.STRING)
.maybeOption("contEvt", ["--continue-with"], clk.STRING)
.action(async args => {
await withWallet(args, async wallet => {
const history = await wallet.getHistory();
console.log(JSON.stringify(history, undefined, 2));
});
});
walletCli
.subcommand("", "pending", { help: "Show pending operations." })
.action(async args => {
await withWallet(args, async wallet => {
const pending = await wallet.getPendingOperations();
console.log(JSON.stringify(pending, undefined, 2));
});
});
async function asyncSleep(milliSeconds: number): Promise<void> {
return new Promise<void>((resolve, reject) => {
setTimeout(() => resolve(), milliSeconds);
});
}
walletCli
.subcommand("runPendingOpt", "run-pending", {
help: "Run pending operations.",
})
.action(async args => {
await withWallet(args, async wallet => {
await wallet.runPending();
});
});
walletCli
.subcommand("handleUri", "handle-uri", {
help: "Handle a taler:// URI.",
})
.requiredArgument("uri", clk.STRING)
.flag("autoYes", ["-y", "--yes"])
.action(async args => {
await withWallet(args, async wallet => {
const uri: string = args.handleUri.uri;
if (uri.startsWith("taler://pay/")) {
await doPay(wallet, uri, { alwaysYes: args.handleUri.autoYes });
} else if (uri.startsWith("taler://tip/")) {
const res = await wallet.getTipStatus(uri);
console.log("tip status", res);
await wallet.acceptTip(res.tipId);
} else if (uri.startsWith("taler://refund/")) {
await wallet.applyRefund(uri);
} else if (uri.startsWith("taler://withdraw/")) {
const withdrawInfo = await wallet.getWithdrawalInfo(uri);
const selectedExchange = withdrawInfo.suggestedExchange;
if (!selectedExchange) {
console.error("no suggested exchange!");
process.exit(1);
return;
}
const res = await wallet.acceptWithdrawal(uri, selectedExchange);
await wallet.processReserve(res.reservePub);
}
});
});
const exchangesCli = walletCli.subcommand("exchangesCmd", "exchanges", {
help: "Manage exchanges.",
});
exchangesCli
.subcommand("exchangesListCmd", "list", {
help: "List known exchanges.",
})
.action(async args => {
console.log("Listing exchanges ...");
await withWallet(args, async wallet => {
const exchanges = await wallet.getExchanges();
console.log("exchanges", exchanges);
});
});
exchangesCli
.subcommand("exchangesUpdateCmd", "update", {
help: "Update or add an exchange by base URL.",
})
.requiredArgument("url", clk.STRING, {
help: "Base URL of the exchange.",
})
.flag("force", ["-f", "--force"])
.action(async args => {
await withWallet(args, async wallet => {
const res = await wallet.updateExchangeFromUrl(
args.exchangesUpdateCmd.url,
args.exchangesUpdateCmd.force,
);
});
});
const advancedCli = walletCli.subcommand("advancedArgs", "advanced", {
help:
"Subcommands for advanced operations (only use if you know what you're doing!).",
});
advancedCli
.subcommand("decode", "decode", {
help: "Decode base32-crockford.",
})
.action(args => {
const enc = fs.readFileSync(0, "utf8");
fs.writeFileSync(1, decodeCrock(enc.trim()));
});
advancedCli
.subcommand("payPrepare", "pay-prepare", {
help: "Claim an order but don't pay yet.",
})
.requiredArgument("url", clk.STRING)
.action(async args => {
await withWallet(args, async wallet => {
const res = await wallet.preparePay(args.payPrepare.url);
switch (res.status) {
case "error":
console.log("error:", res.error);
break;
case "insufficient-balance":
console.log("insufficient balance");
break;
case "paid":
console.log("already paid");
break;
case "payment-possible":
console.log("payment possible");
break;
default:
assertUnreachable(res);
}
});
});
advancedCli
.subcommand("refresh", "force-refresh", {
help: "Force a refresh on a coin.",
})
.requiredArgument("coinPub", clk.STRING)
.action(async args => {
await withWallet(args, async wallet => {
await wallet.refresh(args.refresh.coinPub, true);
});
});
advancedCli
.subcommand("coins", "list-coins", {
help: "List coins.",
})
.action(async args => {
await withWallet(args, async wallet => {
const coins = await wallet.getCoins();
for (const coin of coins) {
console.log(`coin ${coin.coinPub}`);
console.log(` status ${coin.status}`);
console.log(` exchange ${coin.exchangeBaseUrl}`);
console.log(
` remaining amount ${Amounts.toString(coin.currentAmount)}`,
);
}
});
});
const testCli = walletCli.subcommand("testingArgs", "testing", {
help: "Subcommands for testing GNU Taler deployments.",
});
testCli
.subcommand("testPayCmd", "test-pay", { help: "create contract and pay" })
.requiredOption("amount", ["-a", "--amount"], clk.STRING)
.requiredOption("summary", ["-s", "--summary"], clk.STRING, {
default: "Test Payment",
})
.action(async args => {
const cmdArgs = args.testPayCmd;
console.log("creating order");
const merchantBackend = new MerchantBackendConnection(
"https://backend.test.taler.net/",
"sandbox",
);
const orderResp = await merchantBackend.createOrder(
cmdArgs.amount,
cmdArgs.summary,
"",
);
console.log("created new order with order ID", orderResp.orderId);
const checkPayResp = await merchantBackend.checkPayment(orderResp.orderId);
const talerPayUri = checkPayResp.taler_pay_uri;
if (!talerPayUri) {
console.error("fatal: no taler pay URI received from backend");
process.exit(1);
return;
}
console.log("taler pay URI:", talerPayUri);
await withWallet(args, async wallet => {
await doPay(wallet, talerPayUri, { alwaysYes: true });
});
});
testCli
.subcommand("integrationtestCmd", "integrationtest", {
help: "Run integration test with bank, exchange and merchant.",
})
.requiredOption("exchange", ["-e", "--exchange"], clk.STRING, {
default: "https://exchange.test.taler.net/",
})
.requiredOption("merchant", ["-m", "--merchant"], clk.STRING, {
default: "https://backend.test.taler.net/",
})
.requiredOption("merchantApiKey", ["-k", "--merchant-api-key"], clk.STRING, {
default: "sandbox",
})
.requiredOption("bank", ["-b", "--bank"], clk.STRING, {
default: "https://bank.test.taler.net/",
})
.requiredOption("withdrawAmount", ["-a", "--amount"], clk.STRING, {
default: "TESTKUDOS:10",
})
.requiredOption("spendAmount", ["-s", "--spend-amount"], clk.STRING, {
default: "TESTKUDOS:4",
})
.action(async args => {
applyVerbose(args.wallet.verbose);
let cmdObj = args.integrationtestCmd;
try {
await runIntegrationTest({
amountToSpend: cmdObj.spendAmount,
amountToWithdraw: cmdObj.withdrawAmount,
bankBaseUrl: cmdObj.bank,
exchangeBaseUrl: cmdObj.exchange,
merchantApiKey: cmdObj.merchantApiKey,
merchantBaseUrl: cmdObj.merchant,
}).catch(err => {
console.error("Failed with exception:");
console.error(err);
});
process.exit(0);
} catch (e) {
console.error(e);
process.exit(1);
}
});
testCli
.subcommand("genTipUri", "gen-tip-uri", {
help: "Generate a taler://tip URI.",
})
.requiredOption("amount", ["-a", "--amount"], clk.STRING, {
default: "TESTKUDOS:10",
})
.action(async args => {
const merchantBackend = new MerchantBackendConnection(
"https://backend.test.taler.net/",
"sandbox",
);
const tipUri = await merchantBackend.authorizeTip("TESTKUDOS:10", "test");
console.log(tipUri);
});
testCli
.subcommand("genRefundUri", "gen-refund-uri", {
help: "Generate a taler://refund URI.",
})
.requiredOption("amount", ["-a", "--amount"], clk.STRING, {
default: "TESTKUDOS:5",
})
.requiredOption("refundAmount", ["-r", "--refund"], clk.STRING, {
default: "TESTKUDOS:3",
})
.requiredOption("summary", ["-s", "--summary"], clk.STRING, {
default: "Test Payment (for refund)",
})
.action(async args => {
const cmdArgs = args.genRefundUri;
const merchantBackend = new MerchantBackendConnection(
"https://backend.test.taler.net/",
"sandbox",
);
const orderResp = await merchantBackend.createOrder(
cmdArgs.amount,
cmdArgs.summary,
"",
);
console.log("created new order with order ID", orderResp.orderId);
const checkPayResp = await merchantBackend.checkPayment(orderResp.orderId);
const talerPayUri = checkPayResp.taler_pay_uri;
if (!talerPayUri) {
console.error("fatal: no taler pay URI received from backend");
process.exit(1);
return;
}
await withWallet(args, async wallet => {
await doPay(wallet, talerPayUri, { alwaysYes: true });
});
const refundUri = await merchantBackend.refund(
orderResp.orderId,
"test refund",
cmdArgs.refundAmount,
);
console.log(refundUri);
});
testCli
.subcommand("genPayUri", "gen-pay-uri", {
help: "Generate a taler://pay URI.",
})
.flag("qrcode", ["--qr"], {
help: "Show a QR code with the taler://pay URI",
})
.flag("wait", ["--wait"], {
help: "Wait until payment has completed",
})
.requiredOption("amount", ["-a", "--amount"], clk.STRING, {
default: "TESTKUDOS:1",
})
.requiredOption("summary", ["-s", "--summary"], clk.STRING, {
default: "Test Payment",
})
.action(async args => {
const cmdArgs = args.genPayUri;
console.log("creating order");
const merchantBackend = new MerchantBackendConnection(
"https://backend.test.taler.net/",
"sandbox",
);
const orderResp = await merchantBackend.createOrder(
cmdArgs.amount,
cmdArgs.summary,
"",
);
console.log("created new order with order ID", orderResp.orderId);
const checkPayResp = await merchantBackend.checkPayment(orderResp.orderId);
const talerPayUri = checkPayResp.taler_pay_uri;
if (!talerPayUri) {
console.error("fatal: no taler pay URI received from backend");
process.exit(1);
return;
}
console.log("taler pay URI:", talerPayUri);
if (cmdArgs.qrcode) {
const qrcode = qrcodeGenerator(0, "M");
qrcode.addData(talerPayUri);
qrcode.make();
console.log(qrcode.createASCII());
}
if (cmdArgs.wait) {
console.log("waiting for payment ...");
while (1) {
await asyncSleep(500);
const checkPayResp2 = await merchantBackend.checkPayment(
orderResp.orderId,
);
if (checkPayResp2.paid) {
console.log("payment successfully received!");
break;
}
}
}
});
testCli
.subcommand("withdrawArgs", "withdraw", {
help: "Withdraw from a test bank (must support test registrations).",
})
.requiredOption("amount", ["-a", "--amount"], clk.STRING, {
default: "TESTKUDOS:10",
help: "Amount to withdraw.",
})
.requiredOption("exchange", ["-e", "--exchange"], clk.STRING, {
default: "https://exchange.test.taler.net/",
help: "Exchange base URL.",
})
.requiredOption("bank", ["-b", "--bank"], clk.STRING, {
default: "https://bank.test.taler.net/",
help: "Bank base URL",
})
.action(async args => {
await withWallet(args, async wallet => {
await withdrawTestBalance(
wallet,
args.withdrawArgs.amount,
args.withdrawArgs.bank,
args.withdrawArgs.exchange,
);
logger.info("Withdraw done");
});
});
walletCli.run();
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