hello method

@override Future<void> hello(String? realm, Details details)

This method is called to modify the hello details for a given realm.

Implementation

@override
Future<void> hello(String? realm, Details details) async {
  _ensureUsable();
  final cancellation = cancelPendingChallenge();
  final generation = _attemptGeneration;
  final random = Random.secure();
  final nonceBytes = Uint8List.fromList(<int>[
    for (var i = 0; i < 16; i++) random.nextInt(256),
  ]);
  if (details.authid != null) {
    details.authid = Saslprep.saslprep(details.authid!);
    _authid = details.authid;
  }
  details.authextra ??= <String, dynamic>{};
  details.authextra!['nonce'] = base64.encode(nonceBytes);
  details.authextra!['channel_binding'] = null;
  _helloNonce = details.authextra!['nonce'] as String;
  _clear(nonceBytes);
  await cancellation;
  unawaited(
    Future<void>.delayed(_challengeTimeout, () {
      if (_attemptGeneration == generation) _helloNonce = null;
    }),
  );
}