public void SendCommand(CommandParameterPair command)
{
try
{
byte[] comm = Encoding.UTF8.GetBytes(EncodeMessage(command));
Stream.Write(BitConverter.GetBytes(comm.Length));
Stream.Write(comm);
}
catch (Exception)
{
throw new SocketException();
}
}
public void SendCommand(CommandParameterPair command)
{
if (command.ParameterLength == 0)
{
byte[] fullMessage = Encoding.UTF8.GetBytes(command.Command);
Stream.Write(BitConverter.GetBytes(fullMessage.Length), 0, 4);
Stream.Write(fullMessage, 0, fullMessage.Length);
return;
}
string smessage = EncodeMessage(command);
byte[] byteMessage = Encoding.UTF8.GetBytes(smessage);
Stream.Write(BitConverter.GetBytes(byteMessage.Length), 0, 4);
Stream.Write(byteMessage, 0, byteMessage.Length);
}
public string EncodeMessage(CommandParameterPair pair)
{
if (pair.ParameterLength == 0)
{
return(pair.Command);
}
var builder = new StringBuilder();
builder.Append(String.Format("{0} ", pair.Command));
foreach (string i in pair.Parameters)
{
builder.Append(String.Format("{0}&", Uri.EscapeDataString(i)));
}
return(builder.ToString().Substring(0, builder.Length - 1));
}
public CommandParameterPair RecieveCommand()
{
while (true)
{
int messageLength;
using (var stream = new MemoryStream())
{
while (stream.Length != 4)
{
var buffer = new byte[4 - stream.Length];
int bytesRecieved = Stream.Read(buffer, 0, 4);
stream.Write(buffer, 0, bytesRecieved);
if (!CheckIfConnected())
{
return(null);
}
}
messageLength = BitConverter.ToInt32(stream.ToArray(), 0);
}
using (var stream = new MemoryStream())
{
while (stream.Length != messageLength)
{
var buffer = stream.Length - messageLength > 512 ? new byte[512] : new byte[512 - (messageLength - stream.Length)];
int bytesRecieved = Stream.Read(buffer, 0, buffer.Length);
stream.Write(buffer, 0, bytesRecieved);
if (!CheckIfConnected())
{
return(null);
}
}
CommandParameterPair pair = DecodeMessage(Encoding.UTF8.GetString(stream.ToArray()));
if (pair == null)
{
SendInvalid("The command was not formatted correctly");
continue;
}
return(pair);
}
}
}
public void SendInvalid(string message)
{
var pair = new CommandParameterPair("INVOP", Uri.EscapeDataString(message));
SendCommand(pair);
}
