session-desktop/libloki/api.js

/* global window, textsecure, log */

// eslint-disable-next-line func-names
(function() {
  window.libloki = window.libloki || {};

  async function sendFriendRequestAccepted(pubKey) {
    return sendEmptyMessage(pubKey, true);
  }

  async function sendEmptyMessage(pubKey, sendContentMessage = false) {
    const options = {};
    // send an empty message.
    if (sendContentMessage) {
      // The logic downstream will attach the prekeys and our profile.
      await textsecure.messaging.sendMessageToNumber(
        pubKey, // number
        null, // messageText
        [], // attachments
        null, // quote
        Date.now(), // timestamp
        null, // expireTimer
        null, // profileKey
        options
      );
    } else {
      // empty content message
      const content = new textsecure.protobuf.Content();

      // will be called once the transmission succeeded or failed
      const callback = res => {
        if (res.errors.length > 0) {
          res.errors.forEach(error => log.error(error));
        } else {
          log.info('empty message sent successfully');
        }
      };
      // send an empty message. The logic in ougoing_message will attach the prekeys.
      const outgoingMessage = new textsecure.OutgoingMessage(
        null, // server
        Date.now(), // timestamp,
        [pubKey], // numbers
        content, // message
        true, // silent
        callback, // callback
        options
      );
      await outgoingMessage.sendToNumber(pubKey);
    }
  }

  window.libloki.api = {
    sendFriendRequestAccepted,
    sendEmptyMessage,
  };
})();