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+/*
+ This file is part of TALER
+ (C) 2015 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, If not, see <http://www.gnu.org/licenses/>
+ */
+
+/// <reference path="../lib/decl/chrome/chrome.d.ts" />
+
+"use strict";
+
+
+/**
+ * Script that is injected into (all!) pages to allow them
+ * to interact with the GNU Taler wallet via DOM Events.
+ */
+
+// Make sure we don't pollute the namespace too much.
+namespace TalerNotify {
+ const PROTOCOL_VERSION = 1;
+
+ console.log("Taler injected");
+
+ function subst(url: string, H_contract) {
+ url = url.replace("${H_contract}", H_contract);
+ url = url.replace("${$}", "$");
+ return url;
+ }
+
+ let $ = (x) => document.getElementById(x);
+
+ document.addEventListener("taler-probe", function(e) {
+ let evt = new CustomEvent("taler-wallet-present", {
+ detail: {
+ walletProtocolVersion: PROTOCOL_VERSION
+ }
+ });
+ document.dispatchEvent(evt);
+ console.log("handshake done");
+ });
+
+ document.addEventListener("taler-create-reserve", function(e: CustomEvent) {
+ console.log("taler-create-reserve with " + JSON.stringify(e.detail));
+ let params = {
+ amount: JSON.stringify(e.detail.amount),
+ callback_url: URI(e.detail.callback_url).absoluteTo(document.location.href),
+ bank_url: document.location.href,
+ suggested_mint: e.detail.suggested_mint,
+ };
+ let uri = URI(chrome.extension.getURL("pages/confirm-create-reserve.html"));
+ document.location.href = uri.query(params).href();
+ });
+
+ document.addEventListener("taler-confirm-reserve", function(e: CustomEvent) {
+ console.log("taler-confirm-reserve with " + JSON.stringify(e.detail));
+ let msg = {
+ type: "confirm-reserve",
+ detail: {
+ reservePub: e.detail.reserve_pub
+ }
+ };
+ chrome.runtime.sendMessage(msg, (resp) => {
+ console.log("confirm reserve done");
+ });
+ });
+
+
+ document.addEventListener("taler-contract", function(e: CustomEvent) {
+ // XXX: the merchant should just give us the parsed data ...
+ let offer = JSON.parse(e.detail);
+
+ if (!offer.contract) {
+ console.error("contract field missing");
+ return;
+ }
+
+ let msg = {
+ type: "check-repurchase",
+ detail: {
+ contract: offer.contract
+ },
+ };
+
+ chrome.runtime.sendMessage(msg, (resp) => {
+ if (resp.error) {
+ console.error("wallet backend error", resp);
+ return;
+ }
+ if (resp.isRepurchase) {
+ console.log("doing repurchase");
+ console.assert(resp.existingFulfillmentUrl);
+ console.assert(resp.existingContractHash);
+ window.location.href = subst(resp.existingFulfillmentUrl,
+ resp.existingContractHash);
+
+ } else {
+ let uri = URI(chrome.extension.getURL("pages/confirm-contract.html"));
+ let params = {
+ offer: JSON.stringify(offer),
+ merchantPageUrl: document.location.href,
+ };
+ document.location.href = uri.query(params).href();
+ }
+ });
+ });
+
+
+ document.addEventListener('taler-execute-payment', function(e: CustomEvent) {
+ console.log("got taler-execute-payment in content page");
+ if (!e.detail.pay_url) {
+ console.log("field 'pay_url' missing in taler-execute-payment event");
+ return;
+ }
+ let payUrl = e.detail.pay_url;
+ let msg = {
+ type: "execute-payment",
+ detail: {
+ H_contract: e.detail.H_contract,
+ },
+ };
+ chrome.runtime.sendMessage(msg, (resp) => {
+ console.log("got resp");
+ console.dir(resp);
+ if (!resp.success) {
+ console.log("got event detial:");
+ console.dir(e.detail);
+ if (e.detail.offering_url) {
+ console.log("offering url", e.detail.offering_url);
+ window.location.href = e.detail.offering_url;
+ } else {
+ console.error("execute-payment failed");
+ }
+ return;
+ }
+ let contract = resp.contract;
+ if (!contract) {
+ throw Error("contract missing");
+ }
+
+ console.log("Making request to ", payUrl);
+ let r = new XMLHttpRequest();
+ r.open('post', payUrl);
+ r.send(JSON.stringify(resp.payReq));
+ r.onload = () => {
+ switch (r.status) {
+ case 200:
+ console.log("going to", contract.fulfillment_url);
+ // TODO: Is this the right thing? Does the reload
+ // TODO: override setting location.href?
+ window.location.href = subst(contract.fulfillment_url,
+ e.detail.H_contract);
+ window.location.reload(true);
+ break;
+ default:
+ console.log("Unexpected status code for $pay_url:", r.status);
+ break;
+ }
+ };
+ });
+ });
+} \ No newline at end of file