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Diffstat (limited to 'content_scripts/notify.ts')
| -rw-r--r-- | content_scripts/notify.ts | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/content_scripts/notify.ts b/content_scripts/notify.ts new file mode 100644 index 000000000..d300dbc03 --- /dev/null +++ b/content_scripts/notify.ts @@ -0,0 +1,170 @@ +/* + 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; + } + }; + }); + }); +}
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