private async Task <IFtpResponse> HandleUserAsync(string argument, CancellationToken cancellationToken)
{
var results = new List <Tuple <IFtpResponse, IAuthorizationMechanism> >();
foreach (var authorizationMechanism in SelectedHost.AuthorizationMechanisms)
{
var response = await authorizationMechanism.HandleUserAsync(argument, cancellationToken)
.ConfigureAwait(false);
if (response.Code >= 200 && response.Code < 300)
{
_filteredAuthorizationMechanism = authorizationMechanism;
return(response);
}
results.Add(Tuple.Create(response, authorizationMechanism));
}
var mechanismNeedingPassword = results.FirstOrDefault(x => x.Item1.Code >= 300 && x.Item1.Code < 400);
if (mechanismNeedingPassword != null)
{
_filteredAuthorizationMechanism = mechanismNeedingPassword.Item2;
return(mechanismNeedingPassword.Item1);
}
return(results.First().Item1);
}
/// <inheritdoc />
protected override void OnStatusChanged(SecurityStatus from, SecurityStatus to)
{
if (to == SecurityStatus.Unauthenticated)
{
_filteredAuthenticationMechanism = null;
_selectedAuthenticationMechanism = null;
foreach (var authenticationMechanism in SelectedHost.AuthenticationMechanisms)
{
authenticationMechanism.Reset();
}
}
else if (to == SecurityStatus.Authenticated)
{
_selectedAuthorizationMechanism = null;
_filteredAuthorizationMechanism = null;
foreach (var authorizationMechanism in SelectedHost.AuthorizationMechanisms)
{
authorizationMechanism.Reset(SelectedAuthenticationMechanism);
}
if (from == SecurityStatus.Unauthenticated || from == SecurityStatus.NeedSecurityData)
{
// Successfull AUTH or ADAT
_selectedAuthenticationMechanism = _filteredAuthenticationMechanism;
}
}
else if (to == SecurityStatus.Authorized)
{
_selectedAuthorizationMechanism = _filteredAuthorizationMechanism;
}
}
