Move to websocket for requests to signal server

ts/textsecure/Utils.ts

@@ -0,0 +1,46 @@
+// Copyright 2020-2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+export async function handleStatusCode(status: number): Promise<void> {
+  if (status === 499) {
+    window.log.error('Got 499 from Signal Server. Build is expired.');
+    await window.storage.put('remoteBuildExpiration', Date.now());
+    window.reduxActions.expiration.hydrateExpirationStatus(true);
+  }
+}
+
+export function translateError(error: Error): Error | undefined {
+  const { code } = error;
+  if (code === 200) {
+    // Happens sometimes when we get no response. Might be nice to get 204 instead.
+    return undefined;
+  }
+  let message: string;
+  switch (code) {
+    case -1:
+      message =
+        'Failed to connect to the server, please check your network connection.';
+      break;
+    case 413:
+      message = 'Rate limit exceeded, please try again later.';
+      break;
+    case 403:
+      message = 'Invalid code, please try again.';
+      break;
+    case 417:
+      message = 'Number already registered.';
+      break;
+    case 401:
+      message =
+        'Invalid authentication, most likely someone re-registered and invalidated our registration.';
+      break;
+    case 404:
+      message = 'Number is not registered.';
+      break;
+    default:
+      message = 'The server rejected our query, please file a bug report.';
+  }
+  // eslint-disable-next-line no-param-reassign
+  error.message = `${message} (original: ${error.message})`;
+  return error;
+}