90 lines
2.7 KiB
TypeScript
90 lines
2.7 KiB
TypeScript
import { classifyTalerUri, TalerUriType } from "@gnu-taler/taler-util";
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import { useEffect, useState } from "preact/hooks";
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export function useTalerActionURL(): [string | undefined, (s: boolean) => void] {
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const [talerActionUrl, setTalerActionUrl] = useState<string | undefined>(
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undefined
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);
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const [dismissed, setDismissed] = useState(false);
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useEffect(() => {
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async function check(): Promise<void> {
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const talerUri = await findTalerUriInActiveTab();
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if (talerUri) {
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const actionUrl = actionForTalerUri(talerUri);
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setTalerActionUrl(actionUrl);
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}
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}
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check();
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}, []);
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const url = dismissed ? undefined : talerActionUrl;
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return [url, setDismissed];
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}
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function actionForTalerUri(talerUri: string): string | undefined {
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const uriType = classifyTalerUri(talerUri);
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switch (uriType) {
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case TalerUriType.TalerWithdraw:
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return makeExtensionUrlWithParams("static/wallet.html#/withdraw", {
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talerWithdrawUri: talerUri,
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});
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case TalerUriType.TalerPay:
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return makeExtensionUrlWithParams("static/wallet.html#/pay", {
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talerPayUri: talerUri,
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});
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case TalerUriType.TalerTip:
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return makeExtensionUrlWithParams("static/wallet.html#/tip", {
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talerTipUri: talerUri,
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});
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case TalerUriType.TalerRefund:
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return makeExtensionUrlWithParams("static/wallet.html#/refund", {
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talerRefundUri: talerUri,
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});
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case TalerUriType.TalerNotifyReserve:
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// FIXME: implement
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break;
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default:
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console.warn(
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"Response with HTTP 402 has Taler header, but header value is not a taler:// URI.",
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);
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break;
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}
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return undefined;
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}
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function makeExtensionUrlWithParams(
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url: string,
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params?: { [name: string]: string | undefined },
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): string {
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const innerUrl = new URL(chrome.extension.getURL("/" + url));
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if (params) {
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const hParams = Object.keys(params).map(k => `${k}=${params[k]}`).join('&')
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innerUrl.hash = innerUrl.hash + '?' + hParams
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}
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return innerUrl.href;
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}
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async function findTalerUriInActiveTab(): Promise<string | undefined> {
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return new Promise((resolve, reject) => {
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chrome.tabs.executeScript(
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{
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code: `
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(() => {
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let x = document.querySelector("a[href^='taler://'") || document.querySelector("a[href^='taler+http://'");
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return x ? x.href.toString() : null;
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})();
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`,
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allFrames: false,
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},
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(result) => {
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if (chrome.runtime.lastError) {
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console.error(chrome.runtime.lastError);
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resolve(undefined);
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return;
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}
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console.log("got result", result);
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resolve(result[0]);
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},
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);
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});
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}
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