/// <summary>
/// Callback for when a connection had disconnected
/// </summary>
protected void ClientDisconnected(SBClient client)
{
// Remove client, and call OnUpdate Event
try
{
// Release this stream's AsyncEventArgs to the object pool
Release(client.Stream);
// Remove client from online list
if (Clients.TryRemove(client.ConnectionID, out client) && !client.Disposed)
{
client.Dispose();
}
}
catch (Exception e)
{
LogWriter.Log.Write(LogLevel.Error, "[SB]: An Error occured at : {0}", e.ToString());
}
}
/// <summary>
/// Takes a message sent through the Stream and sends back a respose
/// </summary>
/// <param name="message"></param>
public static void ParseRequest(SBClient client, string message)
{
string[] data = message.Split(new char[] { '\x00' }, StringSplitOptions.RemoveEmptyEntries);
string gamename = data[1].ToLowerInvariant();
string validate = data[2].Substring(0, 8);
string filter = FixFilter(data[2].Substring(8));
string[] fields = data[3].Split(new char[] { '\\' }, StringSplitOptions.RemoveEmptyEntries);
// Send the encrypted serverlist to the client
byte[] unencryptedServerList = PackServerList(client, filter, fields);
string sendingBuffer = Encoding.UTF8.GetString(Enctypex.Encode(
Encoding.UTF8.GetBytes("hW6m9a"), // Battlfield 2 Handoff Key
Encoding.UTF8.GetBytes(validate),
unencryptedServerList,
unencryptedServerList.LongLength)
);
client.Send(sendingBuffer);
}
/// <summary>
/// Accepts a TcpClient, and begin the serverlist fetching process for the client.
/// This method is executed when the user updates his server browser ingame
/// </summary>
protected override void ProcessAccept(TCPStream Stream)
{
// Get our connection id
long ConID = Interlocked.Increment(ref ConnectionCounter);
SBClient client;
// End the operation and display the received data on
// the console.
try
{
// Convert the TcpClient to a MasterClient
client = new SBClient(Stream, ConID);
Clients.TryAdd(client.ConnectionID, client);
// Start receiving data
Stream.BeginReceive();
}
catch (ObjectDisposedException) // Ignore
{
// Remove client
Clients.TryRemove(ConID, out client);
}
catch (IOException) // Connection closed before a TcpClientStream could be made
{
// Remove client
Clients.TryRemove(ConID, out client);
}
catch (Exception e)
{
// Remove client
Clients.TryRemove(ConID, out client);
// Report error
LogWriter.Log.Write(LogLevel.Error, "[SB] : An Error occured at : {0}", e.ToString());
//ExceptionHandler.GenerateExceptionLog(e);
}
}
/// <summary>
/// Packs and prepares the response to a Server List request from the clients game.
/// </summary>
/// <param name="filter"></param>
/// <param name="fields"></param>
/// <returns></returns>
private static byte[] PackServerList(SBClient client, string filter, string[] fields)
{
IPEndPoint remoteEndPoint = ((IPEndPoint)client.RemoteEndPoint);
byte fieldsCount = (byte)fields.Length;
byte[] ipBytes = remoteEndPoint.Address.GetAddressBytes();
byte[] value2 = BitConverter.GetBytes((ushort)6500);
if (BitConverter.IsLittleEndian)
{
Array.Reverse(value2, 0, value2.Length);
}
List <byte> data = new List <byte>();
data.AddRange(ipBytes);
data.AddRange(value2);
data.Add(fieldsCount);
data.Add(0);
foreach (var field in fields)
{
data.AddRange(Encoding.UTF8.GetBytes(field));
data.AddRange(new byte[] { 0, 0 });
}
// TODO: after implementing QueryReport, please touch this function again, this changes were done just to compile the server
throw new NotImplementedException("SB after QR2");
// Execute query right here in memory
/*IQueryable<GameServer> servers = QueryReport.Servers.ToList().Select(x => x.Value).Where(x => x.IsValidated).AsQueryable();
* if (!String.IsNullOrWhiteSpace(filter))
* {
* try
* {
* // Apply Filter
* servers = servers.Where(filter);
* }
* catch (Exception e)
* {
* LogWriter.Log.WriteException(e);
* //Program.ErrorLog.Write("ERROR: [PackServerList] " + e.Message);
* // Program.ErrorLog.Write(" - Filter Used: " + filter);
* }
* }
*
*
* // Add Servers
* foreach (GameServer server in servers)
* {
* // Get port bytes
* byte[] portBytes = BitConverter.GetBytes((ushort)server.QueryPort);
* if (BitConverter.IsLittleEndian)
* Array.Reverse(portBytes, 0, portBytes.Length);
*
* data.Add(81); // it could be 85 as well, unsure of the difference, but 81 seems more common...
* data.AddRange(server.AddressInfo.Address.GetAddressBytes());
* data.AddRange(portBytes);
* data.Add(255);
*
* for (int i = 0; i < fields.Length; i++)
* {
* data.AddRange(Encoding.UTF8.GetBytes(GetField(server, fields[i])));
* if (i < fields.Length - 1)
* data.AddRange(new byte[] { 0, 255 }); // Field Seperator
* }
*
* data.Add(0);
* }
*
* data.AddRange(new byte[] { 0, 255, 255, 255, 255 });
* return data.ToArray();*/
}