refactor shop api event handling

1 files changed, 130 insertions, 0 deletions

diff --git a/lib/shopApi.ts b/lib/shopApi.ts
new file mode 100644
index 000000000..b110e2e75
--- /dev/null
+++ b/lib/shopApi.ts
@@ -0,0 +1,130 @@
+/*
+ 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) {
+  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;
+      }
+    }
+  });
+}
+
+
+export function executeContract(H_contract: any, offering_url: any) {
+  console.log("got taler-execute-contract in content page");
+  const msg = {
+    type: "execute-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("execute-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);
+  });
+}
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