[GNUnet-SVN] [taler-wallet-core] 01/03: taler://pay support

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dold pushed a commit to branch master
in repository wallet-core.

commit 70c0a557f9c89a2a0006f74bd8b361b62660bde2
Author: Florian Dold <address@hidden>
AuthorDate: Tue Aug 27 02:49:38 2019 +0200

    taler://pay support
---
 src/taleruri-test.ts | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/taleruri.ts      | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 156 insertions(+)

diff --git a/src/taleruri-test.ts b/src/taleruri-test.ts
new file mode 100644
index 00000000..a9fa0b1e
--- /dev/null
+++ b/src/taleruri-test.ts
@@ -0,0 +1,79 @@
+/*
+ This file is part of TALER
+ (C) 2019 GNUnet e.V.
+
+ GNU 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.
+
+ GNU 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
+ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+import test from "ava";
+import { parsePayUri } from "./taleruri";
+
+test("taler pay url parsing: http(s)", (t) => {
+  const url1 = "https://example.com/bar?spam=eggs";;
+  const r1 = parsePayUri(url1);
+  if (!r1) {
+    t.fail();
+    return;
+  }
+  t.is(r1.downloadUrl, url1);
+  t.is(r1.sessionId, undefined);
+  const url2 = "http://example.com/bar?spam=eggs";;
+  const r2 = parsePayUri(url2);
+  if (!r2) {
+    t.fail();
+    return;
+  }
+});
+
+
+test("taler pay url parsing: wrong scheme", (t) => {
+  const url1 = "talerfoo://";
+  const r1 = parsePayUri(url1);
+  t.is(r1, undefined);
+
+  const url2 = "taler://refund/a/b/c/d/e/f";
+  const r2 = parsePayUri(url1);
+  t.is(r2, undefined);
+});
+
+
+test("taler pay url parsing: defaults", (t) => {
+  const url1 = "taler://pay/example.com/-/-/myorder";
+  const r1 = parsePayUri(url1);
+  if (!r1) {
+    t.fail();
+    return;
+  }
+  t.is(r1.downloadUrl, 
"https://example.com/public/proposal?instance=default&order_id=myorder";);
+  t.is(r1.sessionId, undefined);
+
+  const url2 = "taler://pay/example.com/-/-/myorder/mysession";
+  const r2 = parsePayUri(url2);
+  if (!r2) {
+    t.fail();
+    return;
+  }
+  t.is(r2.downloadUrl, 
"https://example.com/public/proposal?instance=default&order_id=myorder";);
+  t.is(r2.sessionId, "mysession");
+});
+
+
+test("taler pay url parsing: trailing parts", (t) => {
+  const url1 = "taler://pay/example.com/-/-/myorder/mysession/spam/eggs";
+  const r1 = parsePayUri(url1);
+  if (!r1) {
+    t.fail();
+    return;
+  }
+  t.is(r1.downloadUrl, 
"https://example.com/public/proposal?instance=default&order_id=myorder";);
+  t.is(r1.sessionId, "mysession");
+});
diff --git a/src/taleruri.ts b/src/taleruri.ts
new file mode 100644
index 00000000..fa3b09c3
--- /dev/null
+++ b/src/taleruri.ts
@@ -0,0 +1,77 @@
+/*
+ This file is part of TALER
+ (C) 2019 GNUnet e.V.
+
+ GNU 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.
+
+ GNU 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
+ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+import URI = require("urijs");
+
+export interface PayUriResult {
+  downloadUrl: string;
+  sessionId?: string;
+}
+
+export function parsePayUri(s: string): PayUriResult | undefined {
+  const parsedUri = new URI(s);
+  if (parsedUri.scheme() === "http" || parsedUri.scheme() === "https") {
+    return {
+      downloadUrl: s,
+      sessionId: undefined,
+    };
+  }
+  if (parsedUri.scheme() != "taler") {
+    return undefined;
+  }
+  if (parsedUri.authority() != "pay") {
+    return undefined;
+  }
+
+  let [
+    _,
+    host,
+    maybePath,
+    maybeInstance,
+    orderId,
+    maybeSessionid,
+  ] = parsedUri.path().split("/");
+
+  if (!host) {
+    return undefined;
+  }
+
+  if (!maybePath) {
+    return undefined;
+  }
+
+  if (!orderId) {
+    return undefined;
+  }
+
+  if (maybePath === "-") {
+    maybePath = "public/proposal";
+  } else {
+    maybePath = decodeURIComponent(maybePath);
+  }
+  if (maybeInstance === "-") {
+    maybeInstance = "default";
+  }
+
+  const downloadUrl = new URI(
+    "https://"; + host + "/" + decodeURIComponent(maybePath),
+  ).addQuery({ instance: maybeInstance, order_id: orderId }).href();
+
+  return {
+    downloadUrl,
+    sessionId: maybeSessionid,
+  }
+}

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