forwardKey method

Future<void> forwardKey([ int? index ])

Implementation

Future<void> forwardKey([int? index]) async {
  if (request.canceled) {
    keyManager.incomingShareRequests.remove(request.requestId);
    return; // request is canceled, don't send anything
  }
  final room = this.room;
  final session =
      await keyManager.loadInboundGroupSession(room.id, request.sessionId);
  if (session?.inboundGroupSession == null) {
    Logs().v("[KeyManager] Not forwarding key we don't have");
    return;
  }

  final message = session!.content.copy();
  message['forwarding_curve25519_key_chain'] =
      List<String>.from(session.forwardingCurve25519KeyChain);

  if (session.senderKey.isNotEmpty) {
    message['sender_key'] = session.senderKey;
  }
  message['sender_claimed_ed25519_key'] =
      session.senderClaimedKeys['ed25519'] ??
          (session.forwardingCurve25519KeyChain.isEmpty
              ? keyManager.encryption.fingerprintKey
              : null);
  message['session_key'] = session.inboundGroupSession!.export_session(
    index ?? session.inboundGroupSession!.first_known_index(),
  );
  // send the actual reply of the key back to the requester
  await keyManager.client.sendToDeviceEncrypted(
    [requestingDevice],
    EventTypes.ForwardedRoomKey,
    message,
  );
  keyManager.incomingShareRequests.remove(request.requestId);
}