public long DownloadFile(string reomteFileName, Stream fs_for_save)
{
if (fs_for_save == null)
{
return(-2);
}
if (!this.connected_flag)
{
return(-3);
}
FileReceiver fr = new FileReceiver();
fr.receiver_stream = fs_for_save;
fr.Receive(fs_for_save);
System.Windows.Forms.MessageBox.Show("Start listen to port");
IPEndPoint localIP = (IPEndPoint)this.cmdSocket.LocalEndPoint;
string localIP_str = localIP.Address.ToString();
FTP_response res_port = this.SendCmd_toServer("PORT " + localIP_str.Replace('.', ',') + ",10,107");
FTP_response res_retr = this.SendCmd_toServer("RETR " + reomteFileName);
return(-1);
}
public bool Login(string serverAddr, string userID, string pwd)
{
this.cmdSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
/*Initial connection to remote server*/
try { this.cmdSocket.Connect(serverAddr, this.cmdPort); }
catch (Exception ex)
{
if (this.errorLog != null)
{
this.errorLog.Add("Native_FTP error 0", "can't connect to server\r\n" + ex.ToString());
}
return(this.connected_flag = false);
}
FTP_response res_init = this.ReadMsg_fromServer();
if (res_init.statusCode != 220) //220 Service ready for new user.
{
if (this.errorLog != null)
{
this.errorLog.Add("Native_FTP error 1", res_init.message);
}
return(this.connected_flag = false);
}
/*Send user ID*/
FTP_response res_uid = this.SendCmd_toServer("USER " + userID);
for (int i = 0; i < this.conn_retryTimes && res_uid.statusCode == 220; ++i)
{
res_uid = this.SendCmd_toServer("USER " + userID);
}
if (res_uid.statusCode != 331) //331 User name okay, need password.
{
if (this.errorLog != null)
{
this.errorLog.Add("Native_FTP error 2", res_uid.message);
}
return(this.connected_flag = false);
}
/*Send password*/
FTP_response res_pwd = this.SendCmd_toServer("PASS " + pwd);
for (int i = 0; i < this.conn_retryTimes && res_pwd.statusCode == 331; ++i)
{
res_pwd = this.SendCmd_toServer("PASS " + pwd);
}
if (res_pwd.statusCode != 230) //230 User logged in, proceed. Logged out if appropriate.
{
if (this.errorLog != null)
{
this.errorLog.Add("Native_FTP error 3", res_pwd.message);
}
return(this.connected_flag = false);
}
//FTP_response res_tp = this.SendCmd_toServer("TYPE I");//binary type
return(this.connected_flag = true);
}