155 lines
4.5 KiB
TypeScript
155 lines
4.5 KiB
TypeScript
/*
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This file is part of GNU Taler
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(C) 2021 Taler Systems S.A.
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GNU Taler is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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*/
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/**
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*
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* @author Sebastian Javier Marchano (sebasjm)
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*/
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import { Fragment, h, render, VNode } from 'preact';
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import { render as renderToString } from 'preact-render-to-string';
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import { useEffect } from 'preact/hooks';
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import { Footer } from '../components/Footer';
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import { QR } from '../components/QR';
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import "../css/pure-min.css";
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import "../css/style.css";
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import { Page, QRPlaceholder, WalletLink } from '../styled';
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/**
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* This page creates a refund offer QR code
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*
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* It will build into a mustache html template for server side rendering
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*
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* server side rendering params:
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* - order_status_url
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* - taler_refund_qrcode_svg
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* - taler_refund_uri
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*
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* request params:
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* - refund_uri
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* - order_status_url
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*/
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interface Props {
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refundURI?: string;
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order_status_url?: string;
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qr_code?: string;
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}
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function Head({ order_summary }: { order_summary?: string }): VNode {
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return <Fragment>
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<meta charSet="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<noscript>
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<meta http-equiv="refresh" content="1" />
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</noscript>
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<title>Refund available for {order_summary ? order_summary : `{{ order_summary }}`}</title>
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</Fragment>
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}
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export function OfferRefund({ refundURI, qr_code, order_status_url }: Props): VNode {
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useEffect(() => {
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let checkUrl: URL;
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try {
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checkUrl = new URL(order_status_url ? order_status_url : "{{& order_status_url }}");
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} catch (e) {
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return;
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}
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checkUrl.searchParams.set("await_refund_obtained", "yes");
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const delayMs = 500;
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function check() {
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let retried = false;
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function retryOnce() {
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if (!retried) {
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retried = true;
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check();
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}
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}
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const req = new XMLHttpRequest();
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req.onreadystatechange = function () {
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if (req.readyState === XMLHttpRequest.DONE) {
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if (req.status === 200) {
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try {
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const resp = JSON.parse(req.responseText);
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if (!resp.refund_pending) {
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window.location.reload();
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}
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} catch (e) {
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console.error("could not parse response:", e);
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}
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}
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setTimeout(retryOnce, delayMs);
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}
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};
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req.onerror = function () {
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setTimeout(retryOnce, delayMs);
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}
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req.open("GET", checkUrl.href);
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req.send();
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}
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setTimeout(check, delayMs);
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})
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return <Page>
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<section>
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<h1>Collect Taler refund</h1>
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<p>
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Scan this QR code with your Taler mobile wallet:
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</p>
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<QRPlaceholder dangerouslySetInnerHTML={{ __html: qr_code ? qr_code : `{{{ taler_refund_qrcode_svg }}}` }} />
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<p>
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<WalletLink href={refundURI ? refundURI : `{{ taler_refund_uri }}`}>
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Or open your Taler wallet
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</WalletLink>
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</p>
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<p>
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<a href="https://wallet.taler.net/">Don't have a Taler wallet yet? Install it!</a>
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</p>
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</section>
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<Footer />
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</Page>
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}
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export function mount(): void {
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try {
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const fromLocation = new URL(window.location.href).searchParams
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const os = fromLocation.get('order_summary') || undefined;
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if (os) {
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render(<Head order_summary={os} />, document.head);
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}
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const uri = fromLocation.get('refund_uri') || undefined;
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const osu = fromLocation.get('order_status_url') || undefined;
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const qr_code = uri ? renderToString(<QR text={uri} />) : undefined;
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render(<OfferRefund
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refundURI={uri} order_status_url={osu}
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qr_code={qr_code}
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/>, document.body);
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} catch (e) {
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console.error("got error", e);
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if (e instanceof Error) {
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document.body.innerText = `Fatal error: "${e.message}". Please report this bug at https://bugs.gnunet.org/.`;
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}
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}
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}
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export function buildTimeRendering(): { head: string, body: string } {
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return {
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head: renderToString(<Head />),
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body: renderToString(<OfferRefund />)
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}
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}
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