private void SendFile(DirectoryItem file, string relativePath)
{
if (file.IsFolder)
{
throw new FailedSendingException("Cannot send folder as file.");
}
// Send file info
byte[] infoBuffer = new byte[1 + 8 + 1024]; // instruction + fileSize + name (max 256 chars and 4 bytes per char)
infoBuffer[0] = (byte)TTInstruction.Transfer_FileInfo;
byte[] sizeBytes = BitConverter.GetBytes(file.Size);
Array.Copy(sizeBytes, 0, infoBuffer, 1, sizeBytes.Length);
string fullName = $"{relativePath}{file.Name}";
byte[] fullNameBytes = Encoding.UTF8.GetBytes(fullName);
Array.Copy(fullNameBytes, 0, infoBuffer, 1 + 8, fullNameBytes.Length);
TrySend(infoBuffer, true);
// Send file
long bytesToSend = file.Size;
bool useEncryption = serverEncryptor != null;
TransferProgressReport report = new TransferProgressReport();
report.TotalBytes = totalBytes;
report.ActiveItem = file.Name;
report.CurrentBytes = 0;
report.IsSender = true;
transferProgress.Report(report);
WriteResult result;
using (FileStream fs = File.OpenRead(file.Path))
{
int bufferSize = 0;
while (bytesToSend > 0)
{
try
{
bufferSize = (int)Math.Min(bytesToSend, maxBufferSize);
byte[] buffer = new byte[bufferSize];
fs.Read(buffer, 0, bufferSize);
if (useEncryption)
{
buffer = serverEncryptor.AESEncryptBytes(buffer);
}
result = client.Send(buffer);
if (result.Status != WriteResultStatus.Success)
{
throw new FailedSendingException("Could not send data.");
}
}
catch (Exception e)
{
fs.Flush();
throw new FailedSendingException($"Failed while sending '{file.Name}' ({e.Message}).");
}
bytesToSend -= bufferSize;
bytesSent += bufferSize;
if (bytesSent >= report.CurrentBytes + (totalBytes / 100) || bytesToSend == 0)
{
report.CurrentBytes = bytesSent;
transferProgress.Report(report);
}
}
fs.Flush();
}
}
static void Main(string[] args)
{
_Token = _TokenSource.Token;
Task.Run(() => StartEchoServer(), _Token);
_Client = new CavemanTcpClient("127.0.0.1", 9000, false, null, null);
_Client.Events.ClientConnected += (s, e) =>
{
Console.WriteLine("[Client] connected");
};
_Client.Events.ClientDisconnected += (s, e) =>
{
Console.WriteLine("[Client] disconnected");
};
_Client.Logger = Console.WriteLine;
while (_RunForever)
{
Console.Write("Command [? for help]: ");
string userInput = Console.ReadLine();
if (String.IsNullOrEmpty(userInput))
{
continue;
}
switch (userInput)
{
case "?":
Console.WriteLine("Available commands:");
Console.WriteLine("q quit");
Console.WriteLine("cls clear the screen");
Console.WriteLine("connect connect to server");
Console.WriteLine("send send clientecho to the server");
Console.WriteLine("read read data from the server");
Console.WriteLine("");
break;
case "q":
_RunForever = false;
break;
case "cls":
Console.Clear();
break;
case "connect":
_Client.Connect(5000);
break;
case "send":
_Client.Send("clientecho");
break;
case "read":
ReadResult rr = _Client.Read(10);
if (rr.Status == ReadResultStatus.Success)
{
Console.WriteLine("[Client] read 10 bytes: " + Encoding.UTF8.GetString(rr.Data));
}
else
{
Console.WriteLine("*** [Client] read status: " + rr.Status.ToString());
}
break;
}
}
}
static void Main(string[] args)
{
InitializeClient();
Console.WriteLine("Connecting to ssl://127.0.0.1:8000");
_Client.Connect(10);
while (_RunForever)
{
Console.Write("Command [? for help]: ");
string userInput = Console.ReadLine();
if (String.IsNullOrEmpty(userInput))
{
continue;
}
if (userInput.Equals("?"))
{
Console.WriteLine("-- Available Commands --");
Console.WriteLine("");
Console.WriteLine(" cls Clear the screen");
Console.WriteLine(" q Quit the program");
Console.WriteLine(" send [data] Send data to the server");
Console.WriteLine(" sendt [ms] [data] Send data to the server with specified timeout");
Console.WriteLine(" read [count] Read [count] bytes from the server");
Console.WriteLine(" readt [ms] [count] Read [count] bytes from the server with specified timeout");
Console.WriteLine(" dispose Dispose of the client");
Console.WriteLine(" start Start the client (connected: " + (_Client != null ? _Client.IsConnected.ToString() : "false") + ")");
Console.WriteLine(" stats Retrieve statistics");
Console.WriteLine("");
continue;
}
if (userInput.Equals("c") || userInput.Equals("cls"))
{
Console.Clear();
continue;
}
if (userInput.Equals("q"))
{
_RunForever = false;
break;
}
if (userInput.StartsWith("send "))
{
string[] parts = userInput.Split(new char[] { ' ' }, 2, StringSplitOptions.RemoveEmptyEntries);
string data = parts[1];
WriteResult wr = _Client.Send(data);
if (wr.Status == WriteResultStatus.Success)
{
Console.WriteLine("Success");
}
else
{
Console.WriteLine("Non-success status: " + wr.Status);
}
}
if (userInput.StartsWith("sendt "))
{
string[] parts = userInput.Split(new char[] { ' ' }, 3, StringSplitOptions.RemoveEmptyEntries);
int timeoutMs = Convert.ToInt32(parts[1]);
string data = parts[2];
WriteResult wr = _Client.SendWithTimeout(timeoutMs, data);
if (wr.Status == WriteResultStatus.Success)
{
Console.WriteLine("Success");
}
else
{
Console.WriteLine("Non-success status: " + wr.Status);
}
}
if (userInput.StartsWith("read "))
{
string[] parts = userInput.Split(new char[] { ' ' }, 2, StringSplitOptions.RemoveEmptyEntries);
int count = Convert.ToInt32(parts[1]);
ReadResult rr = _Client.Read(count);
if (rr.Status == ReadResultStatus.Success)
{
Console.WriteLine("Retrieved " + rr.BytesRead + " bytes: " + Encoding.UTF8.GetString(rr.Data));
}
else
{
Console.WriteLine("Non-success status: " + rr.Status.ToString());
}
}
if (userInput.StartsWith("readt "))
{
string[] parts = userInput.Split(new char[] { ' ' }, 3, StringSplitOptions.RemoveEmptyEntries);
int timeoutMs = Convert.ToInt32(parts[1]);
int count = Convert.ToInt32(parts[2]);
ReadResult rr = _Client.ReadWithTimeout(timeoutMs, count);
if (rr.Status == ReadResultStatus.Success)
{
Console.WriteLine("Retrieved " + rr.BytesRead + " bytes: " + Encoding.UTF8.GetString(rr.Data));
}
else
{
Console.WriteLine("Non-success status: " + rr.Status.ToString());
}
}
if (userInput.Equals("dispose"))
{
_Client.Dispose();
}
if (userInput.Equals("start"))
{
InitializeClient();
_Client.Connect(10);
}
if (userInput.Equals("stats"))
{
Console.WriteLine(_Client.Statistics);
}
}
}