Compute provisioning URL in separate function

ts/util/getProvisioningUrl.ts

@@ -0,0 +1,15 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { arrayBufferToBase64 } from '../Crypto';
+
+export function getProvisioningUrl(
+  uuid: string,
+  publicKey: ArrayBuffer
+): string {
+  const params = new URLSearchParams({
+    uuid,
+    pub_key: arrayBufferToBase64(publicKey),
+  });
+  return `tsdevice:/?${params.toString()}`;
+}