Introduce Service Id Types

Co-authored-by: Scott Nonnenberg <scott@signal.org>

ts/util/getServiceIdsForE164s.ts

@@ -0,0 +1,55 @@
+// Copyright 2022 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import type { CDSResponseType } from '../textsecure/cds/Types.d';
+import type { WebAPIType } from '../textsecure/WebAPI';
+import type { AciString } from '../types/ServiceId';
+import * as log from '../logging/log';
+import { isEnabled } from '../RemoteConfig';
+import { isDirectConversation, isMe } from './whatTypeOfConversation';
+
+export async function getServiceIdsForE164s(
+  server: Pick<WebAPIType, 'cdsLookup'>,
+  e164s: ReadonlyArray<string>
+): Promise<CDSResponseType> {
+  // Note: these have no relationship to supplied e164s. We just provide
+  // all available information to the server so that it could return as many
+  // ACI+PNI+E164 matches as possible.
+  const acis = new Array<AciString>();
+  const accessKeys = new Array<string>();
+
+  for (const convo of window.ConversationController.getAll()) {
+    if (!isDirectConversation(convo.attributes) || isMe(convo.attributes)) {
+      continue;
+    }
+
+    const aci = convo.getAci();
+    if (!aci) {
+      continue;
+    }
+
+    convo.deriveAccessKeyIfNeeded();
+    const accessKey = convo.get('accessKey');
+    if (!accessKey) {
+      continue;
+    }
+
+    acis.push(aci);
+    accessKeys.push(accessKey);
+  }
+
+  const returnAcisWithoutUaks =
+    !isEnabled('cds.disableCompatibilityMode') &&
+    isEnabled('desktop.cdsi.returnAcisWithoutUaks');
+
+  log.info(
+    `getServiceIdsForE164s(${e164s}): acis=${acis.length} ` +
+      `accessKeys=${accessKeys.length}`
+  );
+  return server.cdsLookup({
+    e164s,
+    acis,
+    accessKeys,
+    returnAcisWithoutUaks,
+  });
+}