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Diffstat (limited to 'lib/shopApi.ts')
| -rw-r--r-- | lib/shopApi.ts | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/lib/shopApi.ts b/lib/shopApi.ts new file mode 100644 index 000000000..7cc37a9db --- /dev/null +++ b/lib/shopApi.ts @@ -0,0 +1,169 @@ +/* + 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, see <http://www.gnu.org/licenses/> + */ + + +/** + * Implementation of the shop API, either invoked via HTTP or + * via a JS DOM Events. + * + * @author Florian Dold + */ + + + +function subst(url: string, H_contract: string) { + url = url.replace("${H_contract}", H_contract); + url = url.replace("${$}", "$"); + return url; +} + +export function createReserve(amount: any, callback_url: any, wt_types: any) { + let params = { + amount: JSON.stringify(amount), + callback_url: URI(callback_url) + .absoluteTo(document.location.href), + bank_url: document.location.href, + wt_types: JSON.stringify(wt_types), + }; + let uri = URI(chrome.extension.getURL("pages/confirm-create-reserve.html")); + document.location.href = uri.query(params).href(); +} + +export function confirmContract(contract_wrapper: any, replace_navigation: any) { + if (contract_wrapper) { + console.error("contract wrapper missing"); + return; + } + + const offer = contract_wrapper; + + if (!offer.contract) { + console.error("contract field missing"); + return; + } + + const 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 { + const uri = URI(chrome.extension.getURL("pages/confirm-contract.html")); + const params = { + offer: JSON.stringify(offer), + merchantPageUrl: document.location.href, + }; + const target = uri.query(params).href(); + if (replace_navigation === true) { + document.location.replace(target); + } else { + document.location.href = target; + } + } + }); +} + + +/** + * Fetch a payment (coin deposit permissions) for a given contract. + * If we don't have the payment for the contract, redirect to + * offering url instead. + */ +export function fetchPayment(H_contract: any, offering_url: any) { + const msg = { + type: "fetch-payment", + detail: {H_contract}, + }; + + chrome.runtime.sendMessage(msg, (resp) => { + console.log("got resp"); + console.dir(resp); + if (!resp.success) { + if (offering_url) { + console.log("offering url", offering_url); + window.location.href = offering_url; + } else { + console.error("fetch-payment failed"); + } + return; + } + let contract = resp.contract; + if (!contract) { + throw Error("contract missing"); + } + + // We have the details for then payment, the merchant page + // is responsible to give it to the merchant. + + let evt = new CustomEvent("taler-notify-payment", { + detail: { + H_contract: H_contract, + contract: resp.contract, + payment: resp.payReq, + } + }); + document.dispatchEvent(evt); + }); +} + + +/** + * Offer a contract to the wallet after + * downloading it from the given URL. + */ +function offerContractFrom(url: string) { + var contract_request = new XMLHttpRequest(); + console.log("downloading contract from '" + url + "'"); + contract_request.open("GET", url, true); + contract_request.onload = function (e) { + if (contract_request.readyState == 4) { + if (contract_request.status == 200) { + console.log("response text:", + contract_request.responseText); + var contract_wrapper = JSON.parse(contract_request.responseText); + if (!contract_wrapper) { + console.error("response text was invalid json"); + alert("Failure to download contract (invalid json)"); + return; + } + confirmContract(contract_wrapper, true); + } else { + alert("Failure to download contract from merchant " + + "(" + contract_request.status + "):\n" + + contract_request.responseText); + } + } + }; + contract_request.onerror = function (e) { + alert("Failure requesting the contract:\n" + + contract_request.statusText); + }; + contract_request.send(); +}
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