public void Set(string id, FtpsClient client)
{
if (_ftpClients.ContainsKey(id))
{
_ftpClients[id] = client;
}
else
{
if (_ftpClients.Count == 0)
{
// dispose of the ftp on shutdown
Plug.OnShutDown += DisconnectFtp;
}
_ftpClients.Add(id, client);
}
}
/// <summary>
/// Connects to a FTP server trying every methods
/// </summary>
private void ConnectFtp(FtpsClient ftp, string userName, string passWord, string server, int port)
{
NetworkCredential credential = null;
if (!string.IsNullOrEmpty(userName))
{
credential = new NetworkCredential(userName, passWord);
}
var modes = new List <EsslSupportMode>();
typeof(EsslSupportMode).ForEach <EsslSupportMode>((s, l) => { modes.Add((EsslSupportMode)l); });
ftp.DataConnectionMode = EDataConnectionMode.Passive;
while (!ftp.Connected && ftp.DataConnectionMode == EDataConnectionMode.Passive)
{
foreach (var mode in modes.OrderByDescending(mode => mode))
{
try {
var curPort = port > -1 ? port : ((mode & EsslSupportMode.Implicit) == EsslSupportMode.Implicit ? 990 : 21);
ftp.Connect(server, curPort, credential, mode, 1800);
ftp.Connected = true;
break;
} catch (Exception) {
//ignored
}
}
ftp.DataConnectionMode = EDataConnectionMode.Active;
}
// failed?
if (!ftp.Connected)
{
throw new Exception("Failed to connect to a FTP server with : " + string.Format(@"Username : {0}, Password : {1}, Host : {2}, Port : {3}", userName ?? "none", passWord ?? "none", server, port == -1 ? 21 : port));
}
}