public TransferTask(
FtpSupportTcpClient cmd,
Action <long> updateCall, // call when sent a new data, para stands for total transmitted size
Action finishCall, // call when finish all the task
Action <string> failCall, // call when the task fail to run, para stands for the message
string localPath, string ftpPath, string file,
TaskType type
)
{
this.cmd = cmd;
this.updateCall = updateCall;
this.finishCall = finishCall;
this.failCall = failCall;
Type = type;
LocalPath = localPath;
FtpPath = ftpPath;
FileName = file;
createTask();
}
// create a client for this Form
private FtpSupportTcpClient createClient(string ip, ushort port)
{
if (!Regex.IsMatch(BoxIP.Text, IPv4Match) && !Regex.IsMatch(BoxIP.Text, IPv6Match))
{
//IP address is not valid
return(null);
}
/* evan_choo: this try-catch block is deleted and the exception is thrown to the method buttonConnection_click*/
//try
//{
var r = new FtpSupportTcpClient(ip, port, s =>
{
ListBoxLog.Items.Add(s);
ListBoxLog.SelectedIndex = ListBoxLog.Items.Count - 1;
}); // for port is "ushort", no need to check
return(r);
//}
//catch (Exception e)
//{
// //connnection error
// throw e;
//}
}
private void ButtonConnect_Click(object sender, EventArgs e)
{
// core run paras
Cursor cr = Cursor.Current;
Cursor.Current = Cursors.WaitCursor;
// disable all
{
inputBatch(false);
actionBatch(false);
}
// core run
if (ButtonConnect.Text == LanguageConstant.CONNECT_STRING)
{
BoxIP.Text = Regex.Replace(BoxIP.Text, @"\s", "");
if (BoxPort.Text.Equals(""))
{
BoxPort.Text = "21";
}
/* evan_choo: the try-catch block is added here. if there is an exception, there is connection error*/
try {
cmd = createClient(BoxIP.Text, Convert.ToUInt16(BoxPort.Text));
} catch (Exception)
{
MessageBox.Show(LanguageConstant.CONNECTION_ERROR);
goto brk;
}
if (cmd == null)
{
MessageBox.Show(LanguageConstant.INVALID_IP_ERROR);
goto brk;
}
ListBoxLog.Items.Clear();
// Login
// User Name
string rets = cmd.login(BoxUsername.Text, BoxPassword.Text).Substring(0, 3);
if (!rets.Equals("230"))
{
MessageBox.Show(LanguageConstant.PASSWORD_ERROR);
goto brk;
}
// just try to test all kinds of commands
// while (true)
// {
// rets = Interaction.InputBox("命令");
// MessageBox.Show(
// cmd.sendCommand(rets + CommandConstant.CRLF)
// );
// }
ButtonConnect.Text = LanguageConstant.DISCONNECT_STRING;
functionEnable();
goto ret;
// means to keep the original disconnection mode
brk:
inputBatch(true);
}
else if (ButtonConnect.Text == LanguageConstant.DISCONNECT_STRING)
{
if (!checkDisconnect())
{
MessageBox.Show(LanguageConstant.CANNOT_CLOSE);
goto brk; // keep connect
}
// rsy56640
// server might disconnect before client.
if (task != null)
{
cmd.quitThis();
}
cmd.closeStreams();
ButtonConnect.Text = LanguageConstant.CONNECT_STRING;
cmd = null;
setToReadyForLink();
goto ret;
brk:
actionBatch(true);
if (task == null)
{
runningPartBatch(true);
}
else
{
runningPartBatch(false);
}
}
else
{
throw new InvalidDataException("Not a valid string for this button");
}
ret:
Cursor.Current = cr;
ButtonConnect.Enabled = true;
}
