public async void BeginUploadFileWithUniqueName(FileUploadReadInputBytesDelegate readInputDelegate, FileUploadBytesWrittenDelegate bytesWrittenDelegate, FileUploadFinishedDelegate uploadFinishedDelegate, IOTaskIsCanceledDelegate taskCanceled, bool binaryMode = false)
{
//check parameter to be null
if (readInputDelegate == null)
{
throw new ArgumentNullException("readInputDelegate");
}
if (bytesWrittenDelegate == null)
{
throw new ArgumentNullException("bytesWrittenDelegate");
}
if (uploadFinishedDelegate == null)
{
throw new ArgumentNullException("uploadFinishedDelegate");
}
if (taskCanceled == null)
{
throw new ArgumentNullException("taskCanceled");
}
IsIdled = false;
checkConnected();
//check whether the passive client is already connected. If not connect a new one.
if (_dataChannelSocket == null)
{
if (EnterPassiveModeAutomatic)
{
await EnterPassiveMode();
}
}
//enter the binary mode when requested
if (binaryMode)
{
EnterBinaryMode();
}
string answer;
if (!TrySendCommandReadAnswer("STOU", out answer))
{
return;
}
if (answer == null)
{
return;
}
if (answer.Trim().StartsWith("425"))
{
_dataChannelSocket = null;
if (EnterPassiveModeAutomatic)
{
await EnterPassiveMode();
if (!TrySendCommandReadAnswer("STOU", out answer))
{
return;
}
if (answer == null)
{
return;
}
}
}
if (answer.Trim().StartsWith("150") & answer.Trim().StartsWith("125"))
{
beginUploadData(readInputDelegate, bytesWrittenDelegate, new FileUploadFinishedDelegate((bool success) =>
{
try
{
answer = ReadAnswer(ClientType.ActiveClient);
}
catch (IOException) { throw; }
EnterASCIIMode();
IsIdled = true;
uploadFinishedDelegate(success && answer.Trim().StartsWith("226"));
}), taskCanceled);
}
}
private void beginUploadData(FileUploadReadInputBytesDelegate readInputDelegate, FileUploadBytesWrittenDelegate bytesWrittenDelegate, FileUploadFinishedDelegate uploadFinishedDelegate, IOTaskIsCanceledDelegate taskCanceled)
{
ulong totalWrittenBytes = 0;
byte[] buffer;
try
{
buffer = readInputDelegate(1024);
while (buffer.Length != 0)
{
//break the loop when the task is marked as canceled
if (taskCanceled())
{
break;
}
_dataChannelSocketWriter.Write(buffer);
_dataChannelSocketWriter.Flush();
totalWrittenBytes += (ulong)buffer.Length;
bytesWrittenDelegate(totalWrittenBytes);
//read new bytes from the input to send them to the server in the next iteration
buffer = readInputDelegate(1024);
}
//dispose client to close connection
_dataChannelSocket.Dispose();
_dataChannelSocket = null;
//inform the caller that the upload is finished
uploadFinishedDelegate(true);
}
catch (Exception)
{
//if client is not null close and dispose it as well
if (_dataChannelSocket != null)
{
_dataChannelSocket.Dispose();
_dataChannelSocket = null;
}
//inform the caller about the failure of the upload
uploadFinishedDelegate(false);
}
}
public async Task <bool> BeginUploadFile(string name, FileUploadReadInputBytesDelegate readInputDelegate, FileUploadBytesWrittenDelegate bytesWrittenDelegate, FileUploadFinishedDelegate uploadFinishedDelegate, IOTaskIsCanceledDelegate taskCanceled, bool binaryMode = false)
{
//check parameter to be null
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentNullException("readInputDelegate");
}
if (readInputDelegate == null)
{
throw new ArgumentNullException("readInputDelegate");
}
if (bytesWrittenDelegate == null)
{
throw new ArgumentNullException("bytesWrittenDelegate");
}
if (uploadFinishedDelegate == null)
{
throw new ArgumentNullException("uploadFinishedDelegate");
}
if (taskCanceled == null)
{
throw new ArgumentNullException("taskCanceled");
}
IsIdled = false;
checkConnected();
if (_dataChannelSocket == null)
{
if (EnterPassiveModeAutomatic)
{
await EnterPassiveMode();
}
}
if (binaryMode)
{
EnterBinaryMode();
}
string answer;
if (!TrySendCommandReadAnswer("STOR " + name, out answer))
{
return(false);
}
if (answer == null)
{
return(false);
}
if (answer.Trim().StartsWith("425"))
{
_dataChannelSocket = null;
if (EnterPassiveModeAutomatic)
{
await EnterPassiveMode();
if (!TrySendCommandReadAnswer("STOR " + name, out answer))
{
return(false);
}
if (answer == null)
{
return(false);
}
}
}
if (answer.Trim().StartsWith("150") | answer.Trim().StartsWith("125"))
{
beginUploadData(readInputDelegate, bytesWrittenDelegate, new FileUploadFinishedDelegate((bool success) =>
{
try
{
answer = ReadAnswer(ClientType.ActiveClient);
}
catch (IOException) { throw; }
EnterASCIIMode();
IsIdled = true;
uploadFinishedDelegate(success && answer.Trim().StartsWith("226"));
}), taskCanceled);
}
return(false);
}
public async void BeginUploadFile(string absoluteFileName, FileUploadReadInputBytesDelegate readInputDelegate, FileUploadBytesWrittenDelegate bytesWrittenDelegate, FileUploadFinishedDelegate uploadFinishedDelegate, IOTaskIsCanceledDelegate taskCanceled, bool binaryMode = false)
{
await(await getIdledConnection()).BeginUploadFile(absoluteFileName, readInputDelegate, bytesWrittenDelegate, uploadFinishedDelegate, taskCanceled, binaryMode);
}