protected bool StartCompression(TelnetOpcodes type)
{
if (this is NetworkAardwolf)
{
throw new Exception("Trying to start compression on Aardwolf connection!");
}
if (zStream != null)
{
return(false);
}
if (type == TelnetOpcodes.MCCP_V1)
{
Send(new[] { (byte)TelnetOpcodes.IAC, (byte)TelnetOpcodes.SB, (byte)TelnetOpcodes.MCCP_V1,
(byte)TelnetOpcodes.WILL, (byte)TelnetOpcodes.SE });
}
else
{
Send(new[] { (byte)TelnetOpcodes.IAC, (byte)TelnetOpcodes.SB, (byte)TelnetOpcodes.MCCP_V2,
(byte)TelnetOpcodes.IAC, (byte)TelnetOpcodes.SE });
}
zStream = new ZStream();
zStream.deflateInit(6);
return(true);
}
protected override void HandlePacket(TelnetPacket pkt)
{
base.HandlePacket(pkt);
if (pkt.Header == TelnetOpcodes.SB && pkt.Type == TelnetOpcodes.GMCP && pkt.Data.Length > 0)
{
string Msg = Encoding.Default.GetString(pkt.Data.ToArray()).ToLower();
if (!Msg.StartsWith("core.supports.") && !Msg.StartsWith("core.hello"))
{
if (Server.Aardwolf != null)
{
Server.Aardwolf.SendGMCP(pkt.Data.ToArray());
}
}
else if (Msg.StartsWith("core.supports."))
{
try
{
Msg = Msg.Substring("core.supports.".Length);
if (Msg.StartsWith("add "))
{
string[] v =
Msg.ToLower().Substring(Msg.IndexOf(' ') + 1).Replace("[", "").Replace("]", "").Replace(
"\"", "").Replace(" ", "").Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
foreach (string x in v)
{
if (!x.EndsWith("0"))
{
if (!GMCPModules.Contains(x.Substring(0, x.Length - 1)))
{
GMCPModules.Add(x.Substring(0, x.Length - 1));
string b = x.Substring(0, x.Length - 1);
if (b.Contains('.'))
{
b = b.Substring(0, b.IndexOf('.'));
}
if (!Server.GMCPModules.ContainsKey(b) || Server.GMCPModules[b] == 0)
{
if (Server.Aardwolf != null)
{
Server.Aardwolf.SendGMCP(Encoding.Default.GetBytes("Core.Supports.Add [ \"" + b + " " + x[x.Length - 1].ToString() + "\" ]"));
}
}
}
}
else
{
GMCPModules.Remove(x.Substring(0, x.Length - 1));
}
}
}
else if (Msg.StartsWith("set "))
{
string[] v =
Msg.ToLower().Substring(Msg.IndexOf(' ') + 1).Replace("[", "").Replace("]", "").Replace(
"\"", "").Replace(" ", "").Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
foreach (string x in v)
{
if (!x.EndsWith("0"))
{
if (!GMCPModules.Contains(x.Substring(0, x.Length - 1)))
{
GMCPModules.Add(x.Substring(0, x.Length - 1));
string b = x.Substring(0, x.Length - 1);
if (b.Contains('.'))
{
b = b.Substring(0, b.IndexOf('.'));
}
if (!Server.GMCPModules.ContainsKey(b) || Server.GMCPModules[b] == 0)
{
if (Server.Aardwolf != null)
{
Server.Aardwolf.SendGMCP(Encoding.Default.GetBytes("Core.Supports.Add [ \"" + b + " " + x[x.Length - 1].ToString() + "\" ]"));
}
}
}
}
else
{
GMCPModules.Remove(x.Substring(0, x.Length - 1));
}
}
}
else if (Msg.StartsWith("remove "))
{
string[] v =
Msg.ToLower().Substring(Msg.IndexOf(' ') + 1).Replace("[", "").Replace("]", "").Replace(
"\"", "").Replace(" ", "").Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
foreach (string x in v)
{
GMCPModules.Remove(x);
}
}
}
catch
{
}
}
}
if (pkt.Type == TelnetOpcodes.GMCP)
{
return;
}
if (pkt.Type == TelnetOpcodes.MCCP_V2)
{
if (pkt.Header == TelnetOpcodes.DO)
{
if (StartCompression(TelnetOpcodes.MCCP_V2))
{
CompressionType = TelnetOpcodes.MCCP_V2;
}
}
else if (pkt.Header == TelnetOpcodes.DONT)
{
if (CompressionType == TelnetOpcodes.MCCP_V2)
{
EndCompression();
CompressionType = TelnetOpcodes.IAC;
}
}
return;
}
if (pkt.Type == TelnetOpcodes.MCCP_V1)
{
if (pkt.Header == TelnetOpcodes.DO)
{
if (StartCompression(TelnetOpcodes.MCCP_V1))
{
CompressionType = TelnetOpcodes.MCCP_V1;
}
}
else if (pkt.Header == TelnetOpcodes.DONT)
{
if (CompressionType == TelnetOpcodes.MCCP_V1)
{
EndCompression();
CompressionType = TelnetOpcodes.IAC;
}
}
return;
}
if (Server.Aardwolf != null)
{
Server.Aardwolf.Send(pkt);
}
}
