wallet-core/packages/demobank-ui/src/pages/home/index.tsx

2499 lines
73 KiB
TypeScript

/*
This file is part of GNU Taler
(C) 2022 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/>
*/
/* eslint-disable @typescript-eslint/no-explicit-any */
import { createContext, Fragment, h, VNode } from "preact";
import useSWR, { SWRConfig, useSWRConfig } from "swr";
import {
StateUpdater,
useContext,
useEffect,
useRef,
useState,
} from "preact/hooks";
import talerLogo from "../../assets/logo-white.svg";
import { LangSelectorLikePy as LangSelector } from "../../components/menu/LangSelector.js";
import { QR } from "../../components/QR.js";
import { useLocalStorage, useNotNullLocalStorage } from "../../hooks/index.js";
import { Translate, useTranslator } from "../../i18n/index.js";
import "../../scss/main.scss";
import { Amounts, parsePaytoUri } from "@gnu-taler/taler-util";
interface BankUiSettings {
allowRegistrations: boolean;
showDemoNav: boolean;
bankName: string;
demoSites: [string, string][];
}
/**
* Global settings for the demobank UI.
*/
const defaultSettings: BankUiSettings = {
allowRegistrations: true,
bankName: "Taler Bank",
showDemoNav: true,
demoSites: [
["Landing", "https://demo.taler.net/"],
["Bank", "https://bank.demo.taler.net/"],
["Essay Shop", "https://shop.demo.taler.net/"],
["Donations", "https://donations.demo.taler.net/"],
["Survey", "https://donations.demo.taler.net/"],
],
};
const bankUiSettings: BankUiSettings =
"talerDemobankSettings" in globalThis
? (globalThis as any).talerDemobankSettings
: defaultSettings;
/**
* FIXME:
*
* - INPUT elements have their 'required' attribute ignored.
*
* - the page needs a "home" button that either redirects to
* the profile page (when the user is logged in), or to
* the very initial home page.
*
* - histories 'pages' are grouped in UL elements that cause
* the rendering to visually separate each UL. History elements
* should instead line up without any separation caused by
* a implementation detail.
*
* - Many strings need to be i18n-wrapped.
*/
/***********
* Globals *
**********/
/************
* Contexts *
***********/
const CurrencyContext = createContext<any>(null);
type PageContextType = [PageStateType, StateUpdater<PageStateType>];
const PageContextDefault: PageContextType = [
{
hasError: false,
hasInfo: false,
isLoggedIn: false,
isRawPayto: false,
showPublicHistories: false,
tryRegister: false,
withdrawalInProgress: false,
},
() => {
null;
},
];
const PageContext = createContext<PageContextType>(PageContextDefault);
/**********************************************
* Type definitions for states and API calls. *
*********************************************/
/**
* Has the information to reach and
* authenticate at the bank's backend.
*/
interface BackendStateType {
url?: string;
username?: string;
password?: string;
}
/**
* Request body of POST /transactions.
*
* If the amount appears twice: both as a Payto parameter and
* in the JSON dedicate field, the one on the Payto URI takes
* precedence.
*/
interface TransactionRequestType {
paytoUri: string;
amount?: string; // with currency.
}
/**
* Request body of /register.
*/
interface CredentialsRequestType {
username?: string;
password?: string;
repeatPassword?: string;
}
/**
* Request body of /register.
*/
// interface LoginRequestType {
// username: string;
// password: string;
// }
interface WireTransferRequestType {
iban?: string;
subject?: string;
amount?: string;
}
/**
* Track page state.
*/
interface PageStateType {
isLoggedIn: boolean;
isRawPayto: boolean;
tryRegister: boolean;
showPublicHistories: boolean;
hasError: boolean;
hasInfo: boolean;
withdrawalInProgress: boolean;
error?: {
description?: string;
title: string;
debug?: string;
};
info?: string;
talerWithdrawUri?: string;
/**
* Not strictly a presentational value, could
* be moved in a future "withdrawal state" object.
*/
withdrawalId?: string;
}
/**
* Bank account specific information.
*/
// interface AccountStateType {
// balance: string;
// /* FIXME: Need history here. */
// }
/************
* Helpers. *
***********/
function maybeDemoContent(content: VNode): VNode {
if (bankUiSettings.showDemoNav) {
return content;
}
return <Fragment />;
}
/**
* Bring the state to show the public accounts page.
*/
function goPublicAccounts(pageStateSetter: StateUpdater<PageStateType>) {
return () =>
pageStateSetter((prevState) => ({
...prevState,
showPublicHistories: true,
}));
}
/**
* Validate (the number part of) an amount. If needed,
* replace comma with a dot. Returns 'false' whenever
* the input is invalid, the valid amount otherwise.
*/
function validateAmount(maybeAmount: string): any {
const amountRegex = "^[0-9]+(.[0-9]+)?$";
if (!maybeAmount) {
console.log(`Entered amount (${maybeAmount}) mismatched <input> pattern.`);
return;
}
if (typeof maybeAmount !== "undefined" || maybeAmount !== "") {
console.log(`Maybe valid amount: ${maybeAmount}`);
// tolerating comma instead of point.
const re = RegExp(amountRegex);
if (!re.test(maybeAmount)) {
console.log(`Not using invalid amount '${maybeAmount}'.`);
return false;
}
}
return maybeAmount;
}
/**
* Extract IBAN from a Payto URI.
*/
function getIbanFromPayto(url: string): string {
const pathSplit = new URL(url).pathname.split("/");
let lastIndex = pathSplit.length - 1;
// Happens if the path ends with "/".
if (pathSplit[lastIndex] === "") lastIndex--;
const iban = pathSplit[lastIndex];
return iban;
}
/**
* Extract value and currency from a $currency:x.y amount.
*/
// function parseAmount(val: string): Amount {
// Amounts.parse(val)
// const format = /^[A-Z]+:[0-9]+(\.[0-9]+)?$/;
// if (!format.test(val)) throw Error(`Backend gave invalid amount: ${val}.`);
// const amountSplit = val.split(":");
// return { value: amountSplit[1], currency: amountSplit[0] };
// }
/**
* Get username from the backend state, and throw
* exception if not found.
*/
function getUsername(backendState: BackendStateTypeOpt): string {
if (typeof backendState === "undefined")
throw Error("Username can't be found in a undefined backend state.");
if (!backendState.username) {
throw Error("No username, must login first.");
}
return backendState.username;
}
/**
* Helps extracting the credentials from the state
* and wraps the actual call to 'fetch'. Should be
* enclosed in a try-catch block by the caller.
*/
async function postToBackend(
uri: string,
backendState: BackendStateTypeOpt,
body: string,
): Promise<any> {
if (typeof backendState === "undefined")
throw Error("Credentials can't be found in a undefined backend state.");
const { username, password } = backendState;
const headers = prepareHeaders(username, password);
// Backend URL must have been stored _with_ a final slash.
const url = new URL(uri, backendState.url);
return await fetch(url.href, {
method: "POST",
headers,
body,
});
}
function useTransactionPageNumber(): [number, StateUpdater<number>] {
const ret = useNotNullLocalStorage("transaction-page", "0");
const retObj = JSON.parse(ret[0]);
const retSetter: StateUpdater<number> = function (val) {
const newVal =
val instanceof Function
? JSON.stringify(val(retObj))
: JSON.stringify(val);
ret[1](newVal);
};
return [retObj, retSetter];
}
/**
* Craft headers with Authorization and Content-Type.
*/
function prepareHeaders(username?: string, password?: string): Headers {
const headers = new Headers();
if (username && password) {
headers.append(
"Authorization",
`Basic ${window.btoa(`${username}:${password}`)}`,
);
}
headers.append("Content-Type", "application/json");
return headers;
}
const getBankBackendBaseUrl = (): string => {
const overrideUrl = localStorage.getItem("bank-base-url");
if (overrideUrl) {
console.log(
`using bank base URL ${overrideUrl} (override via bank-base-url localStorage)`,
);
return overrideUrl;
}
const maybeRootPath = "https://bank.demo.taler.net/demobanks/default/";
if (!maybeRootPath.endsWith("/")) return `${maybeRootPath}/`;
console.log(`using bank base URL (${maybeRootPath})`);
return maybeRootPath;
};
/*******************
* State managers. *
******************/
/**
* Stores in the state a object containing a 'username'
* and 'password' field, in order to avoid losing the
* handle of the data entered by the user in <input> fields.
*/
function useShowPublicAccount(
state?: string,
): [string | undefined, StateUpdater<string | undefined>] {
const ret = useLocalStorage("show-public-account", JSON.stringify(state));
const retObj: string | undefined = ret[0] ? JSON.parse(ret[0]) : ret[0];
const retSetter: StateUpdater<string | undefined> = function (val) {
const newVal =
val instanceof Function
? JSON.stringify(val(retObj))
: JSON.stringify(val);
ret[1](newVal);
};
return [retObj, retSetter];
}
/**
* Stores the raw Payto value entered by the user in the state.
*/
type RawPaytoInputType = string;
type RawPaytoInputTypeOpt = RawPaytoInputType | undefined;
function useRawPaytoInputType(
state?: RawPaytoInputType,
): [RawPaytoInputTypeOpt, StateUpdater<RawPaytoInputTypeOpt>, boolean] {
const ret = useLocalStorage("raw-payto-input-state", state);
const [dirty, setDirty] = useState(false);
const retObj: RawPaytoInputTypeOpt = ret[0];
const retSetter: StateUpdater<RawPaytoInputTypeOpt> = function (val) {
const newVal = val instanceof Function ? val(retObj) : val;
setDirty(true);
ret[1](newVal);
};
return [retObj, retSetter, dirty];
}
/**
* Stores in the state a object representing a wire transfer,
* in order to avoid losing the handle of the data entered by
* the user in <input> fields. FIXME: name not matching the
* purpose, as this is not a HTTP request body but rather the
* state of the <input>-elements.
*/
type WireTransferRequestTypeOpt = WireTransferRequestType | undefined;
function useWireTransferRequestType(
state?: WireTransferRequestType,
): [WireTransferRequestTypeOpt, StateUpdater<WireTransferRequestTypeOpt>] {
const ret = useLocalStorage(
"wire-transfer-request-state",
JSON.stringify(state),
);
const retObj: WireTransferRequestTypeOpt = ret[0]
? JSON.parse(ret[0])
: ret[0];
const retSetter: StateUpdater<WireTransferRequestTypeOpt> = function (val) {
const newVal =
val instanceof Function
? JSON.stringify(val(retObj))
: JSON.stringify(val);
ret[1](newVal);
};
return [retObj, retSetter];
}
/**
* Stores in the state a object containing a 'username'
* and 'password' field, in order to avoid losing the
* handle of the data entered by the user in <input> fields.
*/
type CredentialsRequestTypeOpt = CredentialsRequestType | undefined;
function useCredentialsRequestType(
state?: CredentialsRequestType,
): [CredentialsRequestTypeOpt, StateUpdater<CredentialsRequestTypeOpt>] {
const ret = useLocalStorage(
"credentials-request-state",
JSON.stringify(state),
);
const retObj: CredentialsRequestTypeOpt = ret[0]
? JSON.parse(ret[0])
: ret[0];
const retSetter: StateUpdater<CredentialsRequestTypeOpt> = function (val) {
const newVal =
val instanceof Function
? JSON.stringify(val(retObj))
: JSON.stringify(val);
ret[1](newVal);
};
return [retObj, retSetter];
}
/**
* Return getters and setters for
* login credentials and backend's
* base URL.
*/
type BackendStateTypeOpt = BackendStateType | undefined;
function useBackendState(
state?: BackendStateType,
): [BackendStateTypeOpt, StateUpdater<BackendStateTypeOpt>] {
const ret = useLocalStorage("backend-state", JSON.stringify(state));
const retObj: BackendStateTypeOpt = ret[0] ? JSON.parse(ret[0]) : ret[0];
const retSetter: StateUpdater<BackendStateTypeOpt> = function (val) {
const newVal =
val instanceof Function
? JSON.stringify(val(retObj))
: JSON.stringify(val);
ret[1](newVal);
};
return [retObj, retSetter];
}
/**
* Keep mere business information, like account balance or
* transactions history.
*/
// type AccountStateTypeOpt = AccountStateType | undefined;
// function useAccountState(
// state?: AccountStateType,
// ): [AccountStateTypeOpt, StateUpdater<AccountStateTypeOpt>] {
// const ret = useLocalStorage("account-state", JSON.stringify(state));
// const retObj: AccountStateTypeOpt = ret[0] ? JSON.parse(ret[0]) : ret[0];
// const retSetter: StateUpdater<AccountStateTypeOpt> = function (val) {
// const newVal =
// val instanceof Function
// ? JSON.stringify(val(retObj))
// : JSON.stringify(val);
// ret[1](newVal);
// };
// return [retObj, retSetter];
// }
/**
* Wrapper providing defaults.
*/
function usePageState(
state: PageStateType = {
isLoggedIn: false,
isRawPayto: false,
tryRegister: false,
showPublicHistories: false,
hasError: false,
hasInfo: false,
withdrawalInProgress: false,
},
): [PageStateType, StateUpdater<PageStateType>] {
const ret = useNotNullLocalStorage("page-state", JSON.stringify(state));
const retObj: PageStateType = JSON.parse(ret[0]);
const retSetter: StateUpdater<PageStateType> = function (val) {
const newVal =
val instanceof Function
? JSON.stringify(val(retObj))
: JSON.stringify(val);
ret[1](newVal);
};
return [retObj, retSetter];
}
/**
* Request preparators.
*
* These functions aim at sanitizing the input received
* from users - for example via a HTML form - and create
* a HTTP request object out of that.
*/
/******************
* HTTP wrappers. *
*****************/
/**
* A 'wrapper' is typically a function that prepares one
* particular API call and updates the state accordingly. */
/**
* Abort a withdrawal operation via the Access API's /abort.
*/
async function abortWithdrawalCall(
backendState: BackendStateTypeOpt,
withdrawalId: string | undefined,
pageStateSetter: StateUpdater<PageStateType>,
): Promise<void> {
if (typeof backendState === "undefined") {
console.log("No credentials found.");
pageStateSetter((prevState) => ({
...prevState,
hasError: true,
error: {
title: `No credentials found.`,
},
}));
return;
}
if (typeof withdrawalId === "undefined") {
console.log("No withdrawal ID found.");
pageStateSetter((prevState) => ({
...prevState,
hasError: true,
error: {
title: `No withdrawal ID found.`,
},
}));
return;
}
let res: any;
try {
const { username, password } = backendState;
const headers = prepareHeaders(username, password);
/**
* NOTE: tests show that when a same object is being
* POSTed, caching might prevent same requests from being
* made. Hence, trying to POST twice the same amount might
* get silently ignored. Needs more observation!
*
* headers.append("cache-control", "no-store");
* headers.append("cache-control", "no-cache");
* headers.append("pragma", "no-cache");
* */
// Backend URL must have been stored _with_ a final slash.
const url = new URL(
`access-api/accounts/${backendState.username}/withdrawals/${withdrawalId}/abort`,
backendState.url,
);
res = await fetch(url.href, { method: "POST", headers });
} catch (error) {
console.log("Could not abort the withdrawal", error);
pageStateSetter((prevState) => ({
...prevState,
hasError: true,
error: {
title: `Could not abort the withdrawal.`,
description: (error as any).error.description,
debug: JSON.stringify(error),
},
}));
return;
}
if (!res.ok) {
const response = await res.json();
console.log(
`Withdrawal abort gave response error (${res.status})`,
res.statusText,
);
pageStateSetter((prevState) => ({
...prevState,
hasError: true,
error: {
title: `Withdrawal abortion failed.`,
description: response.error.description,
debug: JSON.stringify(response),
},
}));
return;
}
console.log("Withdrawal operation aborted!");
pageStateSetter((prevState) => {
const { ...rest } = prevState;
return {
...rest,
info: "Withdrawal aborted!",
};
});
}
/**
* This function confirms a withdrawal operation AFTER
* the wallet has given the exchange's payment details
* to the bank (via the Integration API). Such details
* can be given by scanning a QR code or by passing the
* raw taler://withdraw-URI to the CLI wallet.
*
* This function will set the confirmation status in the
* 'page state' and let the related components refresh.
*/
async function confirmWithdrawalCall(
backendState: BackendStateTypeOpt,
withdrawalId: string | undefined,
pageStateSetter: StateUpdater<PageStateType>,
): Promise<void> {
if (typeof backendState === "undefined") {
console.log("No credentials found.");
pageStateSetter((prevState) => ({
...prevState,
hasError: true,
error: {
title: "No credentials found.",
},
}));
return;
}
if (typeof withdrawalId === "undefined") {
console.log("No withdrawal ID found.");
pageStateSetter((prevState) => ({
...prevState,
hasError: true,
error: {
title: "No withdrawal ID found.",
},
}));
return;
}
let res: Response;
try {
const { username, password } = backendState;
const headers = prepareHeaders(username, password);
/**
* NOTE: tests show that when a same object is being
* POSTed, caching might prevent same requests from being
* made. Hence, trying to POST twice the same amount might
* get silently ignored.
*
* headers.append("cache-control", "no-store");
* headers.append("cache-control", "no-cache");
* headers.append("pragma", "no-cache");
* */
// Backend URL must have been stored _with_ a final slash.
const url = new URL(
`access-api/accounts/${backendState.username}/withdrawals/${withdrawalId}/confirm`,
backendState.url,
);
res = await fetch(url.href, {
method: "POST",
headers,
});
} catch (error) {
console.log("Could not POST withdrawal confirmation to the bank", error);
pageStateSetter((prevState) => ({
...prevState,
hasError: true,
error: {
title: `Could not confirm the withdrawal`,
description: (error as any).error.description,
debug: JSON.stringify(error),
},
}));
return;
}
if (!res || !res.ok) {
const response = await res.json();
// assume not ok if res is null
console.log(
`Withdrawal confirmation gave response error (${res.status})`,
res.statusText,
);
pageStateSetter((prevState) => ({
...prevState,
hasError: true,
error: {
title: `Withdrawal confirmation gave response error`,
debug: JSON.stringify(response),
},
}));
return;
}
console.log("Withdrawal operation confirmed!");
pageStateSetter((prevState) => {
const { talerWithdrawUri, ...rest } = prevState;
return {
...rest,
info: "Withdrawal confirmed!",
};
});
}
/**
* This function creates a new transaction. It reads a Payto
* address entered by the user and POSTs it to the bank. No
* sanity-check of the input happens before the POST as this is
* already conducted by the backend.
*/
async function createTransactionCall(
req: TransactionRequestType,
backendState: BackendStateTypeOpt,
pageStateSetter: StateUpdater<PageStateType>,
/**
* Optional since the raw payto form doesn't have
* a stateful management of the input data yet.
*/
cleanUpForm: () => void,
): Promise<void> {
let res: any;
try {
res = await postToBackend(
`access-api/accounts/${getUsername(backendState)}/transactions`,
backendState,
JSON.stringify(req),
);
} catch (error) {
console.log("Could not POST transaction request to the bank", error);
pageStateSetter((prevState) => ({
...prevState,
hasError: true,
error: {
title: `Could not create the wire transfer`,
description: (error as any).error.description,
debug: JSON.stringify(error),
},
}));
return;
}
// POST happened, status not sure yet.
if (!res.ok) {
const response = await res.json();
console.log(
`Transfer creation gave response error: ${response} (${res.status})`,
);
pageStateSetter((prevState) => ({
...prevState,
hasError: true,
error: {
title: `Transfer creation gave response error`,
description: response.error.description,
debug: JSON.stringify(response),
},
}));
return;
}
// status is 200 OK here, tell the user.
console.log("Wire transfer created!");
pageStateSetter((prevState) => ({
...prevState,
hasInfo: true,
info: "Wire transfer created!",
}));
// Only at this point the input data can
// be discarded.
cleanUpForm();
}
/**
* This function creates a withdrawal operation via the Access API.
*
* After having successfully created the withdrawal operation, the
* user should receive a QR code of the "taler://withdraw/" type and
* supposed to scan it with their phone.
*
* TODO: (1) after the scan, the page should refresh itself and inform
* the user about the operation's outcome. (2) use POST helper. */
async function createWithdrawalCall(
amount: string,
backendState: BackendStateTypeOpt,
pageStateSetter: StateUpdater<PageStateType>,
) {
if (typeof backendState === "undefined") {
console.log("Page has a problem: no credentials found in the state.");
pageStateSetter((prevState) => ({
...prevState,
hasError: true,
error: {
title: "No credentials given.",
},
}));
return;
}
let res: any;
try {
const { username, password } = backendState;
const headers = prepareHeaders(username, password);
// Let bank generate withdraw URI:
const url = new URL(
`access-api/accounts/${backendState.username}/withdrawals`,
backendState.url,
);
res = await fetch(url.href, {
method: "POST",
headers,
body: JSON.stringify({ amount }),
});
} catch (error) {
console.log("Could not POST withdrawal request to the bank", error);
pageStateSetter((prevState) => ({
...prevState,
hasError: true,
error: {
title: `Could not create withdrawal operation`,
description: (error as any).error.description,
debug: JSON.stringify(error),
},
}));
return;
}
if (!res.ok) {
const response = await res.json();
console.log(
`Withdrawal creation gave response error: ${response} (${res.status})`,
);
pageStateSetter((prevState) => ({
...prevState,
hasError: true,
error: {
title: `Withdrawal creation gave response error`,
description: response.error.description,
debug: JSON.stringify(response),
},
}));
return;
}
console.log("Withdrawal operation created!");
const resp = await res.json();
pageStateSetter((prevState: PageStateType) => ({
...prevState,
withdrawalInProgress: true,
talerWithdrawUri: resp.taler_withdraw_uri,
withdrawalId: resp.withdrawal_id,
}));
}
async function loginCall(
req: CredentialsRequestType,
/**
* FIXME: figure out if the two following
* functions can be retrieved from the state.
*/
backendStateSetter: StateUpdater<BackendStateTypeOpt>,
pageStateSetter: StateUpdater<PageStateType>,
) {
/**
* Optimistically setting the state as 'logged in', and
* let the Account component request the balance to check
* whether the credentials are valid. */
pageStateSetter((prevState) => ({ ...prevState, isLoggedIn: true }));
let baseUrl = getBankBackendBaseUrl();
if (!baseUrl.endsWith("/")) baseUrl += "/";
backendStateSetter((prevState) => ({
...prevState,
url: baseUrl,
username: req.username,
password: req.password,
}));
}
/**
* This function requests /register.
*
* This function is responsible to change two states:
* the backend's (to store the login credentials) and
* the page's (to indicate a successful login or a problem).
*/
async function registrationCall(
req: CredentialsRequestType,
/**
* FIXME: figure out if the two following
* functions can be retrieved somewhat from
* the state.
*/
backendStateSetter: StateUpdater<BackendStateTypeOpt>,
pageStateSetter: StateUpdater<PageStateType>,
) {
let baseUrl = getBankBackendBaseUrl();
/**
* If the base URL doesn't end with slash and the path
* is not empty, then the concatenation made by URL()
* drops the last path element.
*/
if (!baseUrl.endsWith("/")) baseUrl += "/";
const headers = new Headers();
headers.append("Content-Type", "application/json");
const url = new URL("access-api/testing/register", baseUrl);
let res: any;
try {
res = await fetch(url.href, {
method: "POST",
body: JSON.stringify({
username: req.username,
password: req.password,
}),
headers,
});
} catch (error) {
console.log(
`Could not POST new registration to the bank (${url.href})`,
error,
);
pageStateSetter((prevState) => ({
...prevState,
hasError: true,
error: {
title: `Registration failed, please report`,
debug: JSON.stringify(error),
},
}));
return;
}
if (!res.ok) {
const response = await res.json();
pageStateSetter((prevState) => ({
...prevState,
hasError: true,
error: {
title: `New registration gave response error`,
debug: JSON.stringify(response),
},
}));
} else {
pageStateSetter((prevState) => ({
...prevState,
isLoggedIn: true,
tryRegister: false,
}));
backendStateSetter((prevState) => ({
...prevState,
url: baseUrl,
username: req.username,
password: req.password,
}));
}
}
/**************************
* Functional components. *
*************************/
function ErrorBanner(Props: any): VNode | null {
const [pageState, pageStateSetter] = Props.pageState;
// const i18n = useTranslator();
if (!pageState.hasError) return null;
const rval = (
<div class="informational informational-fail" style={{ marginTop: 8 }}>
<div style={{ display: "flex", justifyContent: "space-between" }}>
<p>
<b>{pageState.error.title}</b>
</p>
<div>
<input
type="button"
class="pure-button"
value="Clear"
onClick={async () => {
pageStateSetter((prev: any) => ({ ...prev, error: undefined }));
}}
/>
</div>
</div>
<p>{pageState.error.description}</p>
</div>
);
delete pageState.error;
pageState.hasError = false;
return rval;
}
function StatusBanner(Props: any): VNode | null {
const [pageState, pageStateSetter] = Props.pageState;
const i18n = useTranslator();
if (!pageState.hasInfo) return null;
const rval = <p class="informational">{pageState.error}</p>;
delete pageState.info_msg;
pageState.hasInfo = false;
return rval;
}
function BankFrame(Props: any): VNode {
const i18n = useTranslator();
const [pageState, pageStateSetter] = useContext(PageContext);
console.log("BankFrame state", pageState);
const logOut = (
<div class="logout">
<a
href="#"
class="pure-button logout-button"
onClick={() => {
pageStateSetter((prevState: PageStateType) => {
const { talerWithdrawUri, withdrawalId, ...rest } = prevState;
return {
...rest,
isLoggedIn: false,
withdrawalInProgress: false,
hasInfo: false,
hasError: false,
isRawPayto: false,
};
});
}}
>{i18n`Logout`}</a>
</div>
);
const demo_sites = [];
for (const i in bankUiSettings.demoSites)
demo_sites.push(
<a href={bankUiSettings.demoSites[i][1]}>
{bankUiSettings.demoSites[i][0]}
</a>,
);
return (
<Fragment>
<header
class="demobar"
style="display: flex; flex-direction: row; justify-content: space-between;"
>
<a href="#main" class="skip">{i18n`Skip to main content`}</a>
<div style="max-width: 50em; margin-left: 2em;">
<h1>
<span class="it">
<a href="/">{bankUiSettings.bankName}</a>
</span>
</h1>
{maybeDemoContent(
<p>
<Translate>
This part of the demo shows how a bank that supports Taler
directly would work. In addition to using your own bank account,
you can also see the transaction history of some{" "}
<a href="#" onClick={goPublicAccounts(pageStateSetter)}>
Public Accounts
</a>
.
</Translate>
</p>,
)}
</div>
<a href="https://taler.net/">
<img
src={talerLogo}
alt={i18n`Taler logo`}
height="100"
width="224"
style="margin: 2em 2em"
/>
</a>
</header>
<div style="display:flex; flex-direction: column;" class="navcontainer">
<nav class="demolist">
{maybeDemoContent(<Fragment>{demo_sites}</Fragment>)}
<div class="right">
<LangSelector />
</div>
</nav>
</div>
<section id="main" class="content">
<ErrorBanner pageState={[pageState, pageStateSetter]} />
<StatusBanner pageState={[pageState, pageStateSetter]} />
{pageState.isLoggedIn ? logOut : null}
{Props.children}
</section>
<section id="footer" class="footer">
<div class="footer">
<hr />
<div>
<p>
You can learn more about GNU Taler on our{" "}
<a href="https://taler.net">main website</a>.
</p>
</div>
<div style="flex-grow:1" />
<p>Copyright &copy; 2014&mdash;2022 Taler Systems SA</p>
</div>
</section>
</Fragment>
);
}
function ShowInputErrorLabel({
isDirty,
message,
}: {
message: string | undefined;
isDirty: boolean;
}): VNode {
if (message && isDirty)
return (
<div class="informational informational-fail" style={{ marginTop: 8 }}>
{message}
</div>
);
return <Fragment />;
}
function PaytoWireTransfer(Props: any): VNode {
const currency = useContext(CurrencyContext);
const [pageState, pageStateSetter] = useContext(PageContext); // NOTE: used for go-back button?
const [submitData, submitDataSetter] = useWireTransferRequestType();
const [rawPaytoInput, rawPaytoInputSetter, rawPaytoInputDirty] =
useRawPaytoInputType();
const i18n = useTranslator();
const { focus, backendState } = Props;
const amountRegex = "^[0-9]+(.[0-9]+)?$";
const ibanRegex = "^[A-Z][A-Z][0-9]+$";
const receiverInput = "";
const subjectInput = "";
let transactionData: TransactionRequestType;
const ref = useRef<HTMLInputElement>(null);
useEffect(() => {
if (focus) ref.current?.focus();
}, [focus, pageState.isRawPayto]);
// typeof submitData === "undefined" ||
// typeof submitData.iban === "undefined" ||
// submitData.iban === "" ||
// typeof submitData.subject === "undefined" ||
// submitData.subject === "" ||
// typeof submitData.amount === "undefined" ||
// submitData.amount === ""
let parsedAmount = undefined;
const errorsWire = !submitData
? undefined
: undefinedIfEmpty({
iban: !submitData.iban
? i18n`Missing IBAN`
: !/^[A-Z0-9]*$/.test(submitData.iban)
? i18n`IBAN should have just uppercased letters and numbers`
: undefined,
subject: !submitData.subject ? i18n`Missing subject` : undefined,
amount: !submitData.amount
? i18n`Missing amount`
: !(parsedAmount = Amounts.parse(`${currency}:${submitData.amount}`))
? i18n`Amount is not valid`
: Amounts.isZero(parsedAmount)
? i18n`Should be greater than 0`
: undefined,
});
if (!pageState.isRawPayto)
return (
<div>
<div class="pure-form" name="wire-transfer-form">
<p>
<label for="iban">{i18n`Receiver IBAN:`}</label>&nbsp;
<input
ref={ref}
type="text"
id="iban"
name="iban"
value={submitData?.iban}
placeholder="CC0123456789"
required
pattern={ibanRegex}
onInput={(e): void => {
submitDataSetter((submitData: any) => ({
...submitData,
iban: e.currentTarget.value,
}));
}}
/>
<br />
<ShowInputErrorLabel
message={errorsWire?.iban}
isDirty={submitData?.iban !== undefined}
/>
<br />
<label for="subject">{i18n`Transfer subject:`}</label>&nbsp;
<input
type="text"
name="subject"
id="subject"
placeholder="subject"
value={submitData?.subject}
required
onInput={(e): void => {
submitDataSetter((submitData: any) => ({
...submitData,
subject: e.currentTarget.value,
}));
}}
/>
<br />
<ShowInputErrorLabel
message={errorsWire?.subject}
isDirty={submitData?.subject !== undefined}
/>
<br />
<label for="amount">{i18n`Amount:`}</label>&nbsp;
<input
type="number"
name="amount"
id="amount"
placeholder="amount"
required
value={submitData?.amount}
pattern={amountRegex}
onInput={(e): void => {
submitDataSetter((submitData: any) => ({
...submitData,
amount: e.currentTarget.value,
}));
}}
/>
&nbsp;
<input
type="text"
readonly
class="currency-indicator"
size={currency.length}
maxLength={currency.length}
tabIndex={-1}
value={currency}
/>
<ShowInputErrorLabel
message={errorsWire?.amount}
isDirty={submitData?.amount !== undefined}
/>
</p>
<p style={{ display: "flex", justifyContent: "space-between" }}>
<input
type="submit"
class="pure-button pure-button-primary"
disabled={!!errorsWire}
value="Send"
onClick={async () => {
if (
typeof submitData === "undefined" ||
typeof submitData.iban === "undefined" ||
submitData.iban === "" ||
typeof submitData.subject === "undefined" ||
submitData.subject === "" ||
typeof submitData.amount === "undefined" ||
submitData.amount === ""
) {
console.log("Not all the fields were given.");
pageStateSetter((prevState: PageStateType) => ({
...prevState,
hasError: true,
error: {
title: i18n`Field(s) missing.`,
},
}));
return;
}
transactionData = {
paytoUri: `payto://iban/${
submitData.iban
}?message=${encodeURIComponent(submitData.subject)}`,
amount: `${currency}:${submitData.amount}`,
};
return await createTransactionCall(
transactionData,
backendState,
pageStateSetter,
() => submitDataSetter((p) => ({})),
);
}}
/>
<input
type="button"
class="pure-button"
value="Clear"
onClick={async () => {
submitDataSetter((p) => ({}));
}}
/>
</p>
</div>
<p>
<a
href="#"
onClick={() => {
console.log("switch to raw payto form");
pageStateSetter((prevState: any) => ({
...prevState,
isRawPayto: true,
}));
}}
>
{i18n`Want to try the raw payto://-format?`}
</a>
</p>
</div>
);
const errorsPayto = undefinedIfEmpty({
rawPaytoInput: !rawPaytoInput
? i18n`Missing payto address`
: !parsePaytoUri(rawPaytoInput)
? i18n`Payto does not follow the pattern`
: undefined,
});
return (
<div>
<p>{i18n`Transfer money to account identified by payto:// URI:`}</p>
<div class="pure-form" name="payto-form">
<p>
<label for="address">{i18n`payto URI:`}</label>&nbsp;
<input
name="address"
type="text"
size={50}
ref={ref}
id="address"
value={rawPaytoInput}
required
placeholder={i18n`payto address`}
// pattern={`payto://iban/[A-Z][A-Z][0-9]+?message=[a-zA-Z0-9 ]+&amount=${currency}:[0-9]+(.[0-9]+)?`}
onInput={(e): void => {
rawPaytoInputSetter(e.currentTarget.value);
}}
/>
<ShowInputErrorLabel
message={errorsPayto?.rawPaytoInput}
isDirty={rawPaytoInputDirty}
/>
<br />
<div class="hint">
Hint:
<code>
payto://iban/[receiver-iban]?message=[subject]&amount=[{currency}
:X.Y]
</code>
</div>
</p>
<p>
<input
class="pure-button pure-button-primary"
type="submit"
disabled={!!errorsPayto}
value={i18n`Send`}
onClick={async () => {
// empty string evaluates to false.
if (!rawPaytoInput) {
console.log("Didn't get any raw Payto string!");
return;
}
transactionData = { paytoUri: rawPaytoInput };
if (
typeof transactionData.paytoUri === "undefined" ||
transactionData.paytoUri.length === 0
)
return;
return await createTransactionCall(
transactionData,
backendState,
pageStateSetter,
() => rawPaytoInputSetter((p) => ""),
);
}}
/>
</p>
<p>
<a
href="#"
onClick={() => {
console.log("switch to wire-transfer-form");
pageStateSetter((prevState: any) => ({
...prevState,
isRawPayto: false,
}));
}}
>
{i18n`Use wire-transfer form?`}
</a>
</p>
</div>
</div>
);
}
/**
* Additional authentication required to complete the operation.
* Not providing a back button, only abort.
*/
function TalerWithdrawalConfirmationQuestion(Props: any): VNode {
const [pageState, pageStateSetter] = useContext(PageContext);
const { backendState } = Props;
const i18n = useTranslator();
const captchaNumbers = {
a: Math.floor(Math.random() * 10),
b: Math.floor(Math.random() * 10),
};
let captchaAnswer = "";
return (
<Fragment>
<h1 class="nav">{i18n`Confirm Withdrawal`}</h1>
<article>
<div class="challenge-div">
<form class="challenge-form">
<div class="pure-form" id="captcha" name="capcha-form">
<h2>{i18n`Authorize withdrawal by solving challenge`}</h2>
<p>
<label for="answer">
{i18n`What is`}&nbsp;
<em>
{captchaNumbers.a}&nbsp;+&nbsp;{captchaNumbers.b}
</em>
?&nbsp;
</label>
&nbsp;
<input
name="answer"
id="answer"
type="text"
required
onInput={(e): void => {
captchaAnswer = e.currentTarget.value;
}}
/>
</p>
<p>
<button
class="pure-button pure-button-primary btn-confirm"
onClick={(e) => {
e.preventDefault();
if (
captchaAnswer ==
(captchaNumbers.a + captchaNumbers.b).toString()
) {
confirmWithdrawalCall(
backendState,
pageState.withdrawalId,
pageStateSetter,
);
return;
}
pageStateSetter((prevState: PageStateType) => ({
...prevState,
hasError: true,
error: {
title: i18n`Answer is wrong.`,
},
}));
}}
>
{i18n`Confirm`}
</button>
&nbsp;
<button
class="pure-button pure-button-secondary btn-cancel"
onClick={() =>
abortWithdrawalCall(
backendState,
pageState.withdrawalId,
pageStateSetter,
)
}
>
{i18n`Cancel`}
</button>
</p>
</div>
</form>
<div class="hint">
<p>
<Translate>
A this point, a <b>real</b> bank would ask for an additional
authentication proof (PIN/TAN, one time password, ..), instead
of a simple calculation.
</Translate>
</p>
</div>
</div>
</article>
</Fragment>
);
}
function QrCodeSection({
talerWithdrawUri,
abortButton,
}: {
talerWithdrawUri: string;
abortButton: h.JSX.Element;
}): VNode {
const i18n = useTranslator();
useEffect(() => {
//Taler Wallet WebExtension is listening to headers response and tab updates.
//In the SPA there is no header response with the Taler URI so
//this hack manually triggers the tab update after the QR is in the DOM.
window.location.href = `${window.location.href.split("#")[0]}#`;
}, []);
return (
<section id="main" class="content">
<h1 class="nav">{i18n`Charge Taler Wallet`}</h1>
<article>
<div class="qr-div">
<p>{i18n`Use this QR code to withdraw to your mobile wallet:`}</p>
{QR({ text: talerWithdrawUri })}
<p>
Click <a id="linkqr" href={talerWithdrawUri}>{i18n`this link`}</a>{" "}
to open your Taler wallet!
</p>
<br />
{abortButton}
</div>
</article>
</section>
);
}
/**
* Offer the QR code (and a clickable taler://-link) to
* permit the passing of exchange and reserve details to
* the bank. Poll the backend until such operation is done.
*/
function TalerWithdrawalQRCode(Props: any): VNode {
// turns true when the wallet POSTed the reserve details:
const [pageState, pageStateSetter] = useContext(PageContext);
const { withdrawalId, talerWithdrawUri, accountLabel, backendState } = Props;
const i18n = useTranslator();
const abortButton = (
<a
class="pure-button btn-cancel"
onClick={() => {
pageStateSetter((prevState: PageStateType) => {
return {
...prevState,
withdrawalId: undefined,
talerWithdrawUri: undefined,
withdrawalInProgress: false,
};
});
}}
>{i18n`Abort`}</a>
);
console.log(`Showing withdraw URI: ${talerWithdrawUri}`);
// waiting for the wallet:
const { data, error } = useSWR(
`integration-api/withdrawal-operation/${withdrawalId}`,
{ refreshInterval: 1000 },
);
if (typeof error !== "undefined") {
console.log(
`withdrawal (${withdrawalId}) was never (correctly) created at the bank...`,
error,
);
pageStateSetter((prevState: PageStateType) => ({
...prevState,
hasError: true,
error: {
title: i18n`withdrawal (${withdrawalId}) was never (correctly) created at the bank...`,
},
}));
return (
<Fragment>
<br />
<br />
{abortButton}
</Fragment>
);
}
// data didn't arrive yet and wallet didn't communicate:
if (typeof data === "undefined")
return <p>{i18n`Waiting the bank to create the operation...`}</p>;
/**
* Wallet didn't communicate withdrawal details yet:
*/
console.log("withdrawal status", data);
if (data.aborted)
pageStateSetter((prevState: PageStateType) => {
const { withdrawalId, talerWithdrawUri, ...rest } = prevState;
return {
...rest,
withdrawalInProgress: false,
hasError: true,
error: {
title: i18n`This withdrawal was aborted!`,
},
};
});
if (!data.selection_done) {
return (
<QrCodeSection
talerWithdrawUri={talerWithdrawUri}
abortButton={abortButton}
/>
);
}
/**
* Wallet POSTed the withdrawal details! Ask the
* user to authorize the operation (here CAPTCHA).
*/
return <TalerWithdrawalConfirmationQuestion backendState={backendState} />;
}
function WalletWithdraw(Props: any): VNode {
const { backendState, pageStateSetter, focus } = Props;
const currency = useContext(CurrencyContext);
const i18n = useTranslator();
let submitAmount = "5.00";
const amountRegex = "^[0-9]+(.[0-9]+)?$";
const ref = useRef<HTMLInputElement>(null);
useEffect(() => {
if (focus) ref.current?.focus();
}, [focus]);
return (
<div id="reserve-form" class="pure-form" name="tform">
<p>
<label for="withdraw-amount">{i18n`Amount to withdraw:`}</label>&nbsp;
<input
type="number"
ref={ref}
id="withdraw-amount"
name="withdraw-amount"
value={submitAmount}
pattern={amountRegex}
class="amount"
onChange={(e): void => {
// FIXME: validate using 'parseAmount()',
// deactivate submit button as long as
// amount is not valid
submitAmount = e.currentTarget.value;
}}
/>
&nbsp;
<input
type="text"
readonly
class="currency-indicator"
size={currency.length}
maxLength={currency.length}
tabIndex={-1}
value={currency}
/>
</p>
<p>
<div>
<input
id="select-exchange"
class="pure-button pure-button-primary"
type="submit"
value={i18n`Withdraw`}
onClick={() => {
submitAmount = validateAmount(submitAmount);
/**
* By invalid amounts, the validator prints error messages
* on the console, and the browser colourizes the amount input
* box to indicate a error.
*/
if (!submitAmount) return;
createWithdrawalCall(
`${currency}:${submitAmount}`,
backendState,
pageStateSetter,
);
}}
/>
</div>
</p>
</div>
);
}
/**
* Let the user choose a payment option,
* then specify the details trigger the action.
*/
function PaymentOptions(Props: any): VNode {
const { backendState, pageStateSetter, focus } = Props;
const currency = useContext(CurrencyContext);
const i18n = useTranslator();
const [tab, setTab] = useState<"charge-wallet" | "wire-transfer">(
"charge-wallet",
);
return (
<article>
<div class="payments">
<div class="tab">
<button
class={tab === "charge-wallet" ? "tablinks active" : "tablinks"}
onClick={(): void => {
setTab("charge-wallet");
}}
>
{i18n`Charge Taler wallet`}
</button>
<button
class={tab === "wire-transfer" ? "tablinks active" : "tablinks"}
onClick={(): void => {
setTab("wire-transfer");
}}
>
{i18n`Wire to bank account`}
</button>
</div>
{tab === "charge-wallet" && (
<div id="charge-wallet" class="tabcontent active">
<h3>{i18n`Charge Taler wallet`}</h3>
<WalletWithdraw
backendState={backendState}
focus
pageStateSetter={pageStateSetter}
/>
</div>
)}
{tab === "wire-transfer" && (
<div id="wire-transfer" class="tabcontent active">
<h3>{i18n`Wire to bank account`}</h3>
<PaytoWireTransfer
backendState={backendState}
focus
pageStateSetter={pageStateSetter}
/>
</div>
)}
</div>
</article>
);
}
function RegistrationButton(Props: any): VNode {
const { backendStateSetter, pageStateSetter } = Props;
const i18n = useTranslator();
if (bankUiSettings.allowRegistrations)
return (
<button
class="pure-button pure-button-secondary btn-cancel"
onClick={() => {
pageStateSetter((prevState: PageStateType) => ({
...prevState,
tryRegister: true,
}));
}}
>
{i18n`Register`}
</button>
);
return <span />;
}
function undefinedIfEmpty<T extends object>(obj: T): T | undefined {
return Object.keys(obj).some((k) => (obj as any)[k] !== undefined)
? obj
: undefined;
}
/**
* Collect and submit login data.
*/
function LoginForm(Props: any): VNode {
const { backendStateSetter, pageStateSetter } = Props;
const [submitData, submitDataSetter] = useCredentialsRequestType();
const i18n = useTranslator();
const ref = useRef<HTMLInputElement>(null);
useEffect(() => {
ref.current?.focus();
}, []);
const errors = undefinedIfEmpty({
username: !(submitData && submitData.username)
? i18n`Missing username`
: undefined,
password: !(submitData && submitData.password)
? i18n`Missing password`
: undefined,
});
return (
<div class="login-div">
<form action="javascript:void(0);" class="login-form">
<div class="pure-form">
<h2>{i18n`Please login!`}</h2>
<p class="unameFieldLabel loginFieldLabel formFieldLabel">
<label for="username">{i18n`Username:`}</label>
</p>
<input
ref={ref}
autoFocus
type="text"
name="username"
id="username"
value={submitData && submitData.username}
placeholder="Username"
required
onInput={(e): void => {
submitDataSetter((submitData: any) => ({
...submitData,
username: e.currentTarget.value,
}));
}}
/>
<p class="passFieldLabel loginFieldLabel formFieldLabel">
<label for="password">{i18n`Password:`}</label>
</p>
<input
type="password"
name="password"
id="password"
value={submitData && submitData.password}
placeholder="Password"
required
onInput={(e): void => {
submitDataSetter((submitData: any) => ({
...submitData,
password: e.currentTarget.value,
}));
}}
/>
<br />
<button
type="submit"
class="pure-button pure-button-primary"
disabled={!!errors}
onClick={() => {
if (typeof submitData === "undefined") {
console.log("login data is undefined", submitData);
return;
}
if (!submitData.password || !submitData.username) {
console.log(
"username or password is the empty string",
submitData,
);
return;
}
loginCall(
// Deep copy, to avoid the cleanup
// below make data disappear.
{ ...submitData },
backendStateSetter,
pageStateSetter,
);
submitDataSetter({});
}}
>
{i18n`Login`}
</button>
{RegistrationButton(Props)}
</div>
</form>
</div>
);
}
/**
* Collect and submit registration data.
*/
function RegistrationForm(Props: any): VNode {
// eslint-disable-next-line @typescript-eslint/no-unused-vars
const [pageState, pageStateSetter] = useContext(PageContext);
const [submitData, submitDataSetter] = useCredentialsRequestType();
const i18n = useTranslator();
const errors = !submitData
? undefined
: undefinedIfEmpty({
username: !submitData.username ? i18n`Missing username` : undefined,
password: !submitData.password ? i18n`Missing password` : undefined,
repeatPassword: !submitData.repeatPassword
? i18n`Missing password`
: submitData.repeatPassword !== submitData.password
? i18n`Password don't match`
: undefined,
});
return (
<Fragment>
<h1 class="nav">{i18n`Welcome to ${bankUiSettings.bankName}!`}</h1>
<article>
<div class="register-div">
<form action="javascript:void(0);" class="register-form">
<div class="pure-form">
<h2>{i18n`Please register!`}</h2>
<p class="unameFieldLabel registerFieldLabel formFieldLabel">
<label for="register-un">{i18n`Username:`}</label>
</p>
<input
id="register-un"
name="register-un"
type="text"
placeholder="Username"
value={submitData && submitData.username}
required
onInput={(e): void => {
submitDataSetter((submitData: any) => ({
...submitData,
username: e.currentTarget.value,
}));
}}
/>
<br />
<p class="unameFieldLabel registerFieldLabel formFieldLabel">
<label for="register-pw">{i18n`Password:`}</label>
</p>
<input
type="password"
name="register-pw"
id="register-pw"
placeholder="Password"
value={submitData && submitData.password}
required
onInput={(e): void => {
submitDataSetter((submitData: any) => ({
...submitData,
password: e.currentTarget.value,
}));
}}
/>
<p class="unameFieldLabel registerFieldLabel formFieldLabel">
<label for="register-repeat">{i18n`Repeat Password:`}</label>
</p>
<input
type="password"
style={{ marginBottom: 8 }}
name="register-repeat"
id="register-repeat"
placeholder="Same password"
value={submitData && submitData.repeatPassword}
required
onInput={(e): void => {
submitDataSetter((submitData: any) => ({
...submitData,
repeatPassword: e.currentTarget.value,
}));
}}
/>
<br />
{/*
<label for="phone">{i18n`Phone number:`}</label>
// FIXME: add input validation (must start with +, otherwise only numbers)
<input
name="phone"
id="phone"
type="phone"
placeholder="+CC-123456789"
value={submitData && submitData.phone}
required
onInput={(e): void => {
submitDataSetter((submitData: any) => ({
...submitData,
phone: e.currentTarget.value,
}))}} />
<br />
*/}
<button
class="pure-button pure-button-primary btn-register"
disabled={!!errors}
onClick={() => {
console.log("maybe submitting the registration..");
if (!submitData) return;
registrationCall(
{ ...submitData },
Props.backendStateSetter, // will store BE URL, if OK.
pageStateSetter,
);
console.log("Clearing the input data");
/**
* FIXME: clearing the data should be done by setting
* it to undefined, instead of the empty strings, just
* like done in the login function. Now set to the empty
* strings due to a non lively update of the <input> fields
* after setting to undefined.
*/
submitDataSetter({
username: "",
password: "",
repeatPassword: "",
});
}}
>
{i18n`Register`}
</button>
{/* FIXME: should use a different color */}
<button
class="pure-button pure-button-secondary btn-cancel"
onClick={() => {
submitDataSetter({
username: "",
password: "",
repeatPassword: "",
});
pageStateSetter((prevState: PageStateType) => ({
...prevState,
tryRegister: false,
}));
}}
>
{i18n`Cancel`}
</button>
</div>
</form>
</div>
</article>
</Fragment>
);
}
/**
* Show one page of transactions.
*/
function Transactions(Props: any): VNode {
const { pageNumber, accountLabel } = Props;
const i18n = useTranslator();
const { data, error } = useSWR(
`access-api/accounts/${accountLabel}/transactions?page=${pageNumber}`,
);
if (typeof error !== "undefined") {
console.log("transactions not found error", error);
switch (error.status) {
case 404: {
return <p>Transactions page {pageNumber} was not found.</p>;
}
case 401: {
return <p>Wrong credentials given.</p>;
}
default: {
return <p>Transaction page {pageNumber} could not be retrieved.</p>;
}
}
}
if (!data) {
console.log(`History data of ${accountLabel} not arrived`);
return <p>Transactions page loading...</p>;
}
console.log(`History data of ${accountLabel}`, data);
return (
<div class="results">
<table class="pure-table pure-table-striped">
<thead>
<tr>
<th>{i18n`Date`}</th>
<th>{i18n`Amount`}</th>
<th>{i18n`Counterpart`}</th>
<th>{i18n`Subject`}</th>
</tr>
</thead>
<tbody>
{data.transactions.map((item: any, idx: number) => {
const sign = item.direction == "DBIT" ? "-" : "";
const counterpart =
item.direction == "DBIT" ? item.creditorIban : item.debtorIban;
// Pattern:
//
// DD/MM YYYY subject -5 EUR
// DD/MM YYYY subject 5 EUR
const dateRegex = /^([0-9]{4})-([0-9]{2})-([0-9]{1,2})/;
const dateParse = dateRegex.exec(item.date);
const date =
dateParse !== null
? `${dateParse[3]}/${dateParse[2]} ${dateParse[1]}`
: "date not found";
return (
<tr key={idx}>
<td>{date}</td>
<td>
{sign}
{item.amount} {item.currency}
</td>
<td>{counterpart}</td>
<td>{item.subject}</td>
</tr>
);
})}
</tbody>
</table>
</div>
);
}
/**
* Show only the account's balance. NOTE: the backend state
* is mostly needed to provide the user's credentials to POST
* to the bank.
*/
function Account(Props: any): VNode {
const { cache } = useSWRConfig();
const { accountLabel, backendState } = Props;
// Getting the bank account balance:
const endpoint = `access-api/accounts/${accountLabel}`;
const { data, error } = useSWR(endpoint, {
// refreshInterval: 0,
// revalidateIfStale: false,
// revalidateOnMount: false,
// revalidateOnFocus: false,
// revalidateOnReconnect: false,
});
const [pageState, pageStateSetter] = useContext(PageContext);
const { withdrawalInProgress, withdrawalId, isLoggedIn, talerWithdrawUri } =
pageState;
const i18n = useTranslator();
/**
* This part shows a list of transactions: with 5 elements by
* default and offers a "load more" button.
*/
const [txPageNumber, setTxPageNumber] = useTransactionPageNumber();
const txsPages = [];
for (let i = 0; i <= txPageNumber; i++)
txsPages.push(<Transactions accountLabel={accountLabel} pageNumber={i} />);
if (typeof error !== "undefined") {
console.log("account error", error, endpoint);
/**
* FIXME: to minimize the code, try only one invocation
* of pageStateSetter, after having decided the error
* message in the case-branch.
*/
switch (error.status) {
case 404: {
pageStateSetter((prevState: PageStateType) => ({
...prevState,
hasError: true,
isLoggedIn: false,
error: {
title: i18n`Username or account label '${accountLabel}' not found. Won't login.`,
},
}));
/**
* 404 should never stick to the cache, because they
* taint successful future registrations. How? After
* registering, the user gets navigated to this page,
* therefore a previous 404 on this SWR key (the requested
* resource) would still appear as valid and cause this
* page not to be shown! A typical case is an attempted
* login of a unregistered user X, and then a registration
* attempt of the same user X: in this case, the failed
* login would cache a 404 error to X's profile, resulting
* in the legitimate request after the registration to still
* be flagged as 404. Clearing the cache should prevent
* this. */
(cache as any).clear();
return <p>Profile not found...</p>;
}
case 401: {
pageStateSetter((prevState: PageStateType) => ({
...prevState,
hasError: true,
isLoggedIn: false,
error: {
title: i18n`Wrong credentials given.`,
},
}));
return <p>Wrong credentials...</p>;
}
default: {
pageStateSetter((prevState: PageStateType) => ({
...prevState,
hasError: true,
// isLoggedIn: false,
error: {
title: i18n`Account information could not be retrieved.`,
debug: JSON.stringify(error),
},
}));
return <p>Unknown problem...</p>;
}
}
}
if (!data) return <p>Retrieving the profile page...</p>;
/**
* This block shows the withdrawal QR code.
*
* A withdrawal operation replaces everything in the page and
* (ToDo:) starts polling the backend until either the wallet
* selected a exchange and reserve public key, or a error / abort
* happened.
*
* After reaching one of the above states, the user should be
* brought to this ("Account") page where they get informed about
* the outcome.
*/
console.log(`maybe new withdrawal ${talerWithdrawUri}`);
if (talerWithdrawUri) {
console.log("Bank created a new Taler withdrawal");
return (
<BankFrame>
<TalerWithdrawalQRCode
accountLabel={accountLabel}
backendState={backendState}
withdrawalId={withdrawalId}
talerWithdrawUri={talerWithdrawUri}
/>
</BankFrame>
);
}
const balance = Amounts.parseOrThrow(data.balance.amount);
const balanceValue = Amounts.stringifyValue(balance);
return (
<BankFrame>
<div>
<h1 class="nav welcome-text">
<Translate>
Welcome, {accountLabel} ({getIbanFromPayto(data.paytoUri)})!
</Translate>
</h1>
</div>
<section id="assets">
<div class="asset-summary">
<h2>{i18n`Bank account balance`}</h2>
{data.balance.credit_debit_indicator == "debit" ? <b>-</b> : null}
<div class="large-amount amount">
<span class="value">{`${balanceValue}`}</span>&nbsp;
<span class="currency">{`${balance.currency}`}</span>
</div>
</div>
</section>
<section id="payments">
<div class="payments">
<h2>{i18n`Payments`}</h2>
{/* FIXME: turn into button! */}
<CurrencyContext.Provider value={balance.currency}>
{Props.children}
<PaymentOptions
backendState={backendState}
pageStateSetter={pageStateSetter}
/>
</CurrencyContext.Provider>
</div>
</section>
<section id="main">
<article>
<h2>{i18n`Latest transactions:`}</h2>
<Transactions pageNumber="0" accountLabel={accountLabel} />
</article>
</section>
</BankFrame>
);
}
/**
* Factor out login credentials.
*/
function SWRWithCredentials(props: any): VNode {
const { username, password, backendUrl } = props;
const headers = new Headers();
headers.append("Authorization", `Basic ${btoa(`${username}:${password}`)}`);
console.log("Likely backend base URL", backendUrl);
return (
<SWRConfig
value={{
fetcher: (url: string) => {
return fetch(backendUrl + url || "", { headers }).then((r) => {
if (!r.ok) throw { status: r.status, json: r.json() };
return r.json();
});
},
}}
>
{props.children}
</SWRConfig>
);
}
function SWRWithoutCredentials(Props: any): VNode {
const { baseUrl } = Props;
console.log("Base URL", baseUrl);
return (
<SWRConfig
value={{
fetcher: (url: string) =>
fetch(baseUrl + url || "").then((r) => {
if (!r.ok) throw { status: r.status, json: r.json() };
return r.json();
}),
}}
>
{Props.children}
</SWRConfig>
);
}
/**
* Show histories of public accounts.
*/
function PublicHistories(Props: any): VNode {
const [showAccount, setShowAccount] = useShowPublicAccount();
const { data, error } = useSWR("access-api/public-accounts");
const i18n = useTranslator();
if (typeof error !== "undefined") {
console.log("account error", error);
switch (error.status) {
case 404:
console.log("public accounts: 404", error);
Props.pageStateSetter((prevState: PageStateType) => ({
...prevState,
hasError: true,
showPublicHistories: false,
error: {
title: i18n`List of public accounts was not found.`,
debug: JSON.stringify(error),
},
}));
break;
default:
console.log("public accounts: non-404 error", error);
Props.pageStateSetter((prevState: PageStateType) => ({
...prevState,
hasError: true,
showPublicHistories: false,
error: {
title: i18n`List of public accounts could not be retrieved.`,
debug: JSON.stringify(error),
},
}));
break;
}
}
if (!data) return <p>Waiting public accounts list...</p>;
const txs: any = {};
const accountsBar = [];
/**
* Show the account specified in the props, or just one
* from the list if that's not given.
*/
if (typeof showAccount === "undefined" && data.publicAccounts.length > 0)
setShowAccount(data.publicAccounts[1].accountLabel);
console.log(`Public history tab: ${showAccount}`);
// Ask story of all the public accounts.
for (const account of data.publicAccounts) {
console.log("Asking transactions for", account.accountLabel);
const isSelected = account.accountLabel == showAccount;
accountsBar.push(
<li
class={
isSelected
? "pure-menu-selected pure-menu-item"
: "pure-menu-item pure-menu"
}
>
<a
href="#"
class="pure-menu-link"
onClick={() => setShowAccount(account.accountLabel)}
>
{account.accountLabel}
</a>
</li>,
);
txs[account.accountLabel] = (
<Transactions accountLabel={account.accountLabel} pageNumber={0} />
);
}
return (
<Fragment>
<h1 class="nav">{i18n`History of public accounts`}</h1>
<section id="main">
<article>
<div class="pure-menu pure-menu-horizontal" name="accountMenu">
<ul class="pure-menu-list">{accountsBar}</ul>
{typeof showAccount !== "undefined" ? (
txs[showAccount]
) : (
<p>No public transactions found.</p>
)}
{Props.children}
</div>
</article>
</section>
</Fragment>
);
}
/**
* If the user is logged in, it displays
* the balance, otherwise it offers to login.
*/
export function BankHome(): VNode {
const [backendState, backendStateSetter] = useBackendState();
const [pageState, pageStateSetter] = usePageState();
const i18n = useTranslator();
if (pageState.showPublicHistories)
return (
<SWRWithoutCredentials baseUrl={getBankBackendBaseUrl()}>
<PageContext.Provider value={[pageState, pageStateSetter]}>
<BankFrame>
<PublicHistories pageStateSetter={pageStateSetter}>
<br />
<a
class="pure-button"
onClick={() => {
pageStateSetter((prevState: PageStateType) => ({
...prevState,
showPublicHistories: false,
}));
}}
>
Go back
</a>
</PublicHistories>
</BankFrame>
</PageContext.Provider>
</SWRWithoutCredentials>
);
if (pageState.tryRegister) {
console.log("allow registrations?", bankUiSettings.allowRegistrations);
if (bankUiSettings.allowRegistrations)
return (
<PageContext.Provider value={[pageState, pageStateSetter]}>
<BankFrame>
<RegistrationForm backendStateSetter={backendStateSetter} />
</BankFrame>
</PageContext.Provider>
);
return (
<PageContext.Provider value={[pageState, pageStateSetter]}>
<BankFrame>
<p>{i18n`Currently, the bank is not accepting new registrations!`}</p>
</BankFrame>
</PageContext.Provider>
);
}
if (pageState.isLoggedIn) {
if (typeof backendState === "undefined") {
pageStateSetter((prevState) => ({
...prevState,
hasError: true,
isLoggedIn: false,
error: {
title: i18n`Page has a problem: logged in but backend state is lost.`,
},
}));
return <p>Error: waiting for details...</p>;
}
console.log("Showing the profile page..");
return (
<SWRWithCredentials
username={backendState.username}
password={backendState.password}
backendUrl={backendState.url}
>
<PageContext.Provider value={[pageState, pageStateSetter]}>
<Account
accountLabel={backendState.username}
backendState={backendState}
/>
</PageContext.Provider>
</SWRWithCredentials>
);
} // end of logged-in state.
return (
<PageContext.Provider value={[pageState, pageStateSetter]}>
<BankFrame>
<h1 class="nav">{i18n`Welcome to ${bankUiSettings.bankName}!`}</h1>
<LoginForm
pageStateSetter={pageStateSetter}
backendStateSetter={backendStateSetter}
/>
</BankFrame>
</PageContext.Provider>
);
}