private async Task OnDataReceivedAsync(byte[] messageData)
{
if (messageData.Length < 4)
{
LogDebug("Packet ended prematurely on receive");
TransmitError(ETftpErrorType.IllegalOperation, "Packet ended prematurely");
Parent.UnregisterSession(this);
return;
}
var blockNumber = messageData.Get16BE(2);
if (blockNumber != ((CurrentBlock + 1) & 0xFFFF))
{
LogDebug("Block received out of sequence");
TransmitError(ETftpErrorType.IllegalOperation, "Block received out of sequence");
Parent.UnregisterSession(this);
}
BytesReceived += messageData.Length - 4;
CurrentBlock++;
TransmitAck(blockNumber);
if (TransferStream == null)
{
if (CurrentBlock != 1)
{
LogDebug("ReceiveStream not created yet but not on first packet. Ending transfer");
TransmitError(ETftpErrorType.NotDefined, "Server error");
Parent.UnregisterSession(this);
}
TransferStream = new MemoryStream();
}
TransferStream.Write(messageData, 4, messageData.Length - 4);
if (messageData.Length != 516)
{
LogDebug("Last block received, transfer complete");
await Parent.TransferCompleteAsync(this);
}
else
{
if (IdleSince.Subtract(LastMessageTime) > TimeSpan.FromSeconds(1))
{
LogDebug("Received " + BytesReceived.ToString() + " bytes so far");
LastMessageTime = IdleSince;
}
}
}
/// <summary>
/// Format the data section of a FTP termination record.
/// </summary>
/// <returns>String representation of a FTP termination record.</returns>
public override string ToString()
{
return(StartTime.ToString().PadRight(22, ' ')
+ " " + EndTime.ToString().PadRight(22, ' ')
+ " " + VseTaskId.ToString().PadRight(2 + 5, ' ')
+ " " + FtpNodeName.PadRight(16, ' ')
+ " " + FtpUserId.PadRight(8, ' ')
+ " " + VseIp.PadRight(15, ' ')
+ " " + VsePort.ToString().PadRight(8, ' ')
+ " " + ClientPort.ToString().PadRight(11, ' ')
+ " " + ClientIp.PadRight(15, ' ')
+ " " + ForeignDataIp.PadRight(15, ' ')
+ " " + FilesSent.ToString().PadRight(10, ' ')
+ " " + FilesReceived.ToString().PadRight(10, ' ')
+ " " + BytesSentAcked.ToString().PadRight(20, ' ')
+ " " + BytesReceived.ToString().PadRight(20, ' ')
+ " " + GeneralFlagFormatter(GeneralFlag).PadRight(8, ' ')
+ " " + SslFlagFormatter(SslFlag).ToString().PadRight(5, ' '));
}
public static void ChangeTrafic(TraficType type, int xbytes)
{
float bytes = xbytes / 1024f;
try
{
switch (type)
{
case TraficType.Received:
ReceivedPackets++;
Winda.Other.Settings.Mainform.listStats.Items[4].SubItems[1].Text = ReceivedPackets.ToString();
BytesReceived = BytesReceived + bytes;
Winda.Other.Settings.Mainform.listStats.Items[0].SubItems[1].Text = BytesReceived.ToString();
Winda.Other.Settings.Mainform.listStats.Items[1].SubItems[1].Text = bytes.ToString();
DrawRe((int)xbytes);
break;
case TraficType.Sent:
SentPackets++;
BytesSent = BytesSent + bytes;
Winda.Other.Settings.Mainform.listStats.Items[2].SubItems[1].Text = BytesSent.ToString();
Winda.Other.Settings.Mainform.listStats.Items[3].SubItems[1].Text = bytes.ToString();
Winda.Other.Settings.Mainform.listStats.Items[5].SubItems[1].Text = SentPackets.ToString();
DrawSe((int)xbytes);
break;
}
}
catch
{
}
}