private void ReadThread(object State)
{
//HOLD THE PARAMETER COMING IN AS A CONNECTION
Connection ThisConnection = (Connection)State;
//USED TO HOLD THE INCOMING DATA UNTIL WE HAVE A COMPLETE PACKAGE
StringBuilder tmpBuffer = new StringBuilder();
byte[] buffer = new byte[1024];
#if DEBUG
Console.WriteLine("Accepting Connection");
#endif
//WHILE THERE IS A CONNECTION LISTENTING (BASICALLY INFINITE UNTIL A DISCONNECT CAUSES AN ERROR)
while (ThisConnection.TcpConnection.Connected)
{
try
{
//TRY TO READ FROM THE BUFFER AND APPEND IT TO THE OUTPUT
int readLength = ThisConnection.NetStream.Read(buffer, 0, buffer.Length);
tmpBuffer.Append(System.Text.ASCIIEncoding.ASCII.GetChars(buffer, 0, readLength));
//TEST CODE
if (readLength == 0)
{
throw new System.IO.IOException();
}
//CHECK TO SEE IF WE HAVE A COMPLETE MESSAGE OR NOT AND IF SO PARSE IT AND EXECUTE IT
if (tmpBuffer.ToString().Contains("PACKET_FOOTER"))
{
#if DEBUG
Console.Write(string.Format("Received Command: {0}", !string.IsNullOrEmpty(ThisConnection.UserID) ? StaticFunctions.GetContactsProvider().UserNameFromID(ThisConnection.UserID) + " " : ""));
#endif
try
{
//PARSE THE COMMAND USING REGEX
string command = Regex.Split(tmpBuffer.ToString(), "PACKET_FOOTER")[0] + "PACKET_FOOTER";
//PARSE THE MESSAGE AND DE-SERIALIZE IT INTO A CLASS FOR EXECUTION
IServerMessage receivedMessage = (IServerMessage)MessageWrapper.UnPackageFromTCP(System.Text.ASCIIEncoding.ASCII.GetBytes(command.Replace("PACKET_HEADER", "").Replace("PACKET_FOOTER", "")), true);
#if DEBUG
MessageWrapper tmpThingy = (MessageWrapper)MessageWrapper.UnPackageFromTCP(System.Text.ASCIIEncoding.ASCII.GetBytes(command.Replace("PACKET_HEADER", "").Replace("PACKET_FOOTER", "")), false);
Console.WriteLine(tmpThingy.MessageType);
#endif
//EXECUTE THE SERVER SIDE COMMAND BECAUSE WE ARE ON THE SERVER
receivedMessage.ServerSide(tcpConnections, ThisConnection);
//CLEAR THE BUFFER IN PREPERATION FOR THE NEW COMMAND
//tmpBuffer = new StringBuilder();
tmpBuffer = tmpBuffer.Replace(command, "");
}
catch (Exception ex)
{
#if DEBUG
Console.WriteLine("Clearing Receive Buffer");
#endif
//MAKE SURE WE CLEAR THE INPUT BUFFER TO MAKE SURE WE START FROM SCRATCH WITH A CLEAR BUFFER
while (ThisConnection.NetStream.DataAvailable)
{
ThisConnection.NetStream.ReadByte();
}
//SEND THE ERROR BACK TO THE CLIENT SO THEY KNOW A SERVER ERROR OCCURED
Message_Error tmpError = new Message_Error()
{
Message = string.Format("Server Error:\n{0}\n\n\nBuffer Dump:\n{1}", ex.ToString(), tmpBuffer.ToString())
};
tmpError.Send(ThisConnection);
//CLEAR THE BUFFER NOW
tmpBuffer = new StringBuilder();
}
}
}
catch (System.IO.IOException)
{
//IF THERE WAS AN ERROR AS A RESULT OF A NETWORK IO EXCEPTION
tcpConnections.Remove(ThisConnection);
ThisConnection.TcpConnection.Close();
//LET ALL USERS WHO BELONG TO THIS USERS CONTACT LIST KNOW THIS USER HAS GONE OFFLINE
new Message_StatusUpdate()
{
Status = "Offline", Online = false, UserID = ThisConnection.UserID
}.ServerSide(tcpConnections, ThisConnection);
//EXIT THE LOOP
break;
}
//REST FOR 10 MILISECONDS WHILE OTHER THREADS EXECUTE
Application.DoEvents();
if (tmpBuffer.Length == 0)
{
System.Threading.Thread.Sleep(10);
}
}
#if DEBUG
Console.WriteLine("Connection Closed");
#endif
}
