public bool Send_FileDown(string remotePath, out Response response)
{
// open a file for writing
const string downloadDir = "Downloads";
if (!Directory.Exists(downloadDir))
{
try
{
Directory.CreateDirectory(downloadDir);
}
catch (Exception e)
{
response = new Response(false, String.Format("Unable to create base directory '{0}': '{1}'", downloadDir, e.Message));
return(true);
}
}
string filename = Path.GetFileName(remotePath);
string localPath = Path.Combine(downloadDir, filename);
string errMessage = "";
using (Stream fileOut = FtFileManager.OpenForWrite(localPath, out errMessage))
{
if (fileOut == null)
{
response = new Response(false, errMessage);
return(true);
}
// Open a new connection to the server
using (SslStream sslServer = connectFt())
{
if (sslServer == null)
{
response = new Response(false, "Could not connect to server for file transfer.");
return(false);
}
FtClient ftClient = new FtClient(sslServer);
// write the command string
bool stillConnected = ftClient.Serializer.Serialize(String.Format("file_down:{0}", remotePath));
if (!stillConnected)
{
response = null;
return(false);
}
// expect ack
if (!ReadAck(ftClient.Deserializer, StringDelimiter, out response))
{
return(false); // server disconnected unexpectedly
}
// server can't send file
if (!response.Success)
{
return(true);
}
// receive the file
var task = FtFileManager.FileReceiveAsync(ftClient.Client, fileOut);
task.Wait();
if (!task.Result.Item1)
{
return(false);
}
// expect ack
if (!ReadAck(ftClient.Deserializer, StringDelimiter, out response))
{
return(false);
}
return(true);
}
}
}
public bool Send_FileUp(string localPath, out Response response)
{
// open the file for reading
string errMessage = "";
using (Stream fileIn = FtFileManager.OpenForRead(localPath, out errMessage))
{
if (fileIn == null)
{
response = new Response(false, errMessage);
return(true);
}
// Open a new connection to the server
using (SslStream sslServer = connectFt())
{
if (sslServer == null)
{
response = new Response(false, "Could not connect to server for file transfer.");
return(false);
}
FtClient ftClient = new FtClient(sslServer);
string filename = Path.GetFileName(localPath);
// write the command string
if (!ftClient.Serializer.Serialize(String.Format("file_up:{0}", filename)))
{ // server disconnected unexpectedly
response = null;
return(false);
}
// expect ack
if (!ReadAck(ftClient.Deserializer, StringDelimiter, out response))
{
return(false); // server disconnected unexpectedly
}
// server can't receive file
if (!response.Success)
{
return(true);
}
// send the file
var task = FtFileManager.FileSendAsync(sslServer, fileIn);
task.Wait();
if (!task.Result)
{
return(false);
}
// expect ack
// currently doesn't handle failed transfers DEV: fix
if (!ReadAck(ftClient.Deserializer, StringDelimiter, out response))
{
return(false);
}
return(true);
}
}
}