FtpStream FileToFtpStream(string source)
{
try
{
FtpStream writeStream;
#pragma warning disable SCS0018 // Path traversal: injection possible in {1} argument passed to '{0}'
using (FileStream readStream = new FileStream(source, FileMode.Open, FileAccess.Read))
#pragma warning restore SCS0018 // Path traversal: injection possible in {1} argument passed to '{0}'
{
using (writeStream = new FtpStream(new MemoryStream(), false, true, false))
{
int Length = 256;
Byte[] buffer = new Byte[Length];
int bytesread = readStream.Read(buffer, 0, Length);
while (bytesread > 0)
{
writeStream.Write(buffer, 0, bytesread);
bytesread = readStream.Read(buffer, 0, Length);
}
}
}
return(writeStream);
}
catch (Exception e)
{
ProcessApplicationError("", e);
return(null);
}
}
private int SendData(Stream requestStream, Socket Accept)
{
if (Accept == null)
{
throw new ArgumentNullException(nameof(Accept));
}
FtpStream ftpStream = requestStream as FtpStream;
ftpStream.InternalPosition = 0;
int Length = (int)ftpStream.InternalLength;
Byte [] sendbuffer = new Byte[Length];
ftpStream.InternalRead(sendbuffer, 0, Length);
int cbReturn = Accept.Send(sendbuffer, Length, 0);
ftpStream.InternalClose();
return(cbReturn);
}
public void Put(string source, string target, string transferMode)
{
string targetPath, sourcePath, targetName, sourceName;
ResetError();
pathAndName("", source, out sourcePath, out sourceName);
pathAndName(sourceName, target, out targetPath, out targetName);
FtpStream writeStream = FileToFtpStream(sourcePath + "\\" + sourceName);
if (_status != 0)
{
return;
}
if (_bPassiveMode)
{
OpenPassiveDataConnection();
}
else
{
OpenDataConnection();
}
string sztype = "I";
if (transferMode == "A")
{
sztype = "A";
}
SendCommand("TYPE", sztype);
ResponseDescription resp_desc = ReceiveCommandResponse();
if (!resp_desc.PositiveCompletion)
{
ProcessApplicationError("Data negotiation failed:\n" + _sbControlSocketLog.ToString());
CloseDataConnection();
return;
}
setFtpDir(targetPath);
SendCommand("STOR", targetName);
resp_desc = ReceiveCommandResponse();
if (resp_desc.PositivePreliminary)
{
if (writeStream != null)
{
Socket DataConnection;
if (_bPassiveMode)
{
DataConnection = _DataSocket;
}
else
{
DataConnection = _DataSocket.Accept();
}
if (DataConnection == null)
{
ProcessProtocolViolationError("Accept failed ");
}
SendData(writeStream, DataConnection);
DataConnection.Close();
ResponseDescription resp = ReceiveCommandResponse();
if (!resp.PositiveCompletion)
{
_status = resp.Status;
}
else
{
_status = 0;
}
_statusDescription = resp.StatusDescription;
}
else
{
ProcessApplicationError("Data to be uploaded not specified");
CloseDataConnection();
return;
}
}
else
{
ProcessApplicationError(ComposeExceptionMessage(resp_desc, _sbControlSocketLog.ToString()));
CloseDataConnection();
return;
}
CloseDataConnection();
return;
}