/// <summary>
/// Receives the PROMPT message and responds with an ACK message, then prepares the transfer socket to receive data
/// </summary>
private void BeginReceiveFile()
{
byte[] filetransferheader = null;
int index = 0;
// Read in 256 bytes, PROMPT type and blank cookie
Logging.WriteString("In BeginReceiveFile()");
filetransferheader = new byte[256];
try
{
while (index < filetransferheader.Length)
{
index += socket.Read(filetransferheader, index, filetransferheader.Length - index);
}
}
catch (Exception ex)
{
string message = "Error negotiating file transfer:"
+ Environ.NewLine + ex.Message;
CancelFileTransfer(message);
}
Logging.WriteString("Got file transfer header");
using (ByteStream bstream = new ByteStream(filetransferheader))
{
bstream.AdvanceToPosition(8);
bstream.ReadFileTransferInformation(this);
}
// Respond with the same header, but with the ACK type and the ICBM cookie set
index = 6;
Marshal.InsertUshort(filetransferheader, 0x0202, ref index);
Marshal.CopyArray(Cookie.ToByteArray(), filetransferheader, 0, ref index);
Logging.WriteString("Rewrote file transfer header");
index = 0;
try
{
while (index < filetransferheader.Length)
{
index += socket.Write(filetransferheader, index, filetransferheader.Length - index);
}
}
catch (Exception ex)
{
string message = "Error negotiating file transfer:"
+ Environ.NewLine + ex.Message;
CancelFileTransfer(message);
}
// Open the file for writing
try
{
_datachunk = new byte[8192];
_datastream = (new StreamWriter(LocalFileName, false)).BaseStream;
_streamposition = 0;
}
catch (Exception)
{
throw new Exception("Can't open target file for writing");
}
Logging.WriteString("File opened for writing");
// Signal the parent session that the file transfer has started
parent.OnFileTransferProgress(Cookie, 0, FileHeader.Size);
// Start receiving data
socket.BeginRead(_datachunk, 0, _datachunk.Length, new AsyncCallback(SendFileTransferReceive), null);
//socket.BeginReceive(_datachunk, 0, _datachunk.Length, SocketFlags.None, new AsyncCallback(SendFileTransferReceive), null);
}
/// <summary>
/// Receives the PROMPT message and responds with an ACK message, then prepares the transfer socket to receive data
/// </summary>
private void BeginReceiveFile()
{
byte[] filetransferheader = null;
int index = 0;
// Read in 256 bytes, PROMPT type and blank cookie
Logging.WriteString("In BeginReceiveFile()");
filetransferheader = new byte[256];
try
{
while (index < filetransferheader.Length)
{
index += socket.Read(filetransferheader, index, filetransferheader.Length - index);
}
}
catch (Exception ex)
{
string message = "Error negotiating file transfer:"
+ Environ.NewLine + ex.Message;
CancelFileTransfer(message);
}
Logging.WriteString("Got file transfer header");
using (ByteStream bstream = new ByteStream(filetransferheader))
{
bstream.AdvanceToPosition(8);
bstream.ReadFileTransferInformation(this);
}
// Respond with the same header, but with the ACK type and the ICBM cookie set
index = 6;
Marshal.InsertUshort(filetransferheader, 0x0202, ref index);
Marshal.CopyArray(Cookie.ToByteArray(), filetransferheader, 0, ref index);
Logging.WriteString("Rewrote file transfer header");
index = 0;
try
{
while (index < filetransferheader.Length)
{
index += socket.Write(filetransferheader, index, filetransferheader.Length - index);
}
}
catch (Exception ex)
{
string message = "Error negotiating file transfer:"
+ Environ.NewLine + ex.Message;
CancelFileTransfer(message);
}
// Open the file for writing
try
{
_datachunk = new byte[8192];
_datastream = (new StreamWriter(LocalFileName, false)).BaseStream;
_streamposition = 0;
}
catch (Exception)
{
throw new Exception("Can't open target file for writing");
}
Logging.WriteString("File opened for writing");
// Signal the parent session that the file transfer has started
parent.OnFileTransferProgress(Cookie, 0, FileHeader.Size);
// Start receiving data
socket.BeginRead(_datachunk, 0, _datachunk.Length, new AsyncCallback(SendFileTransferReceive), null);
//socket.BeginReceive(_datachunk, 0, _datachunk.Length, SocketFlags.None, new AsyncCallback(SendFileTransferReceive), null);
}
