public static NetOutgoingMessage Compress(NetOutgoingMessage msg)
{
msg.WritePadBits();
byte[] input = msg.PeekDataBuffer();
byte[] output = new byte[input.Length * 2];
int outlength = ZipCompressor.Instance.Compress(input, msg.LengthBytes, output);
msg.EnsureBufferSize(outlength * 8);
input = msg.PeekDataBuffer();
Array.Copy(output, input, outlength);
msg.LengthBytes = outlength;
msg.LengthBits = outlength * 8;
return(msg);
}
public NetOutgoingMessage Write(MessageTypeMap messageTypeMap, NetPeer peer)
{
NetOutgoingMessage outgoingMessage;
lock (MessageBufferLock)
{
if (_messageBuffer == null)
{
_messageBuffer = peer.CreateMessage(128);
}
else
{
_messageBuffer.LengthBytes = 0;
var buffer = _messageBuffer.PeekDataBuffer();
Array.Clear(buffer, 0, buffer.Length);
}
var messageTypeId = messageTypeMap.GetMessageTypeId(this);
_messageBuffer.Write(messageTypeId);
WriteTo(_messageBuffer);
outgoingMessage = peer.CreateMessage(_messageBuffer.LengthBytes);
outgoingMessage.Write(_messageBuffer);
}
return(outgoingMessage);
}
public virtual void SendNot(NetOutgoingMessage m, IPEndPoint ep)
{
if (server.ConnectionsCount == 0 && Root.Instance.Recorder == null)
{
return;
}
if (ep == null)
{
throw new Exception("ep==null");
}
if (Root.Instance.Recorder != null)
{
byte[] buf = m.PeekDataBuffer();
Root.Instance.Recorder.WritePacket((int)(Root.Instance.Time * 1000), buf, buf.Length);
}
List <NetConnection> list = new List <NetConnection>();
foreach (NetConnection s in Clients)
{
if (s != null)
{
if (ep.ToString() != s.RemoteEndpoint.ToString())
{
list.Add(s);
}
}
}
server.SendMessage(compress?NetCompressor.Compress(m):m, list, NetDeliveryMethod.Unreliable, 0);
}
public static void Run(NetPeer peer)
{
//
// Test encryption
//
List <INetEncryption> algos = new List <INetEncryption>();
algos.Add(new NetXorEncryption("TopSecret"));
algos.Add(new NetXtea("TopSecret"));
algos.Add(new NetAESEncryption("TopSecret"));
algos.Add(new NetRC2Encryption("TopSecret"));
algos.Add(new NetDESEncryption("TopSecret"));
algos.Add(new NetTripleDESEncryption("TopSecret"));
foreach (var algo in algos)
{
NetOutgoingMessage om = peer.CreateMessage();
om.Write("Hallon");
om.Write(42);
om.Write(5, 5);
om.Write(true);
om.Write("kokos");
int trueLen = om.LengthBits;
om.Encrypt(algo);
// convert to incoming message
NetIncomingMessage im = Program.CreateIncomingMessage(om.PeekDataBuffer(), om.LengthBits);
im.Decrypt(algo);
if (im.LengthBits != trueLen)
{
throw new NetException("Length fail");
}
if (im.ReadString() != "Hallon")
{
throw new NetException("fail");
}
if (im.ReadInt32() != 42)
{
throw new NetException("fail");
}
if (im.ReadInt32(5) != 5)
{
throw new NetException("fail");
}
if (im.ReadBoolean() != true)
{
throw new NetException("fail");
}
if (im.ReadString() != "kokos")
{
throw new NetException("fail");
}
Console.WriteLine(algo.GetType().Name + " encryption verified");
}
for (int i = 0; i < 100; i++)
{
byte[] salt = NetSRP.CreateRandomSalt();
byte[] x = NetSRP.ComputePrivateKey("user", "password", salt);
byte[] v = NetSRP.ComputeServerVerifier(x);
//Console.WriteLine("v = " + NetUtility.ToHexString(v));
byte[] a = NetSRP.CreateRandomEphemeral(); // NetUtility.ToByteArray("393ed364924a71ba7258633cc4854d655ca4ec4e8ba833eceaad2511e80db2b5");
byte[] A = NetSRP.ComputeClientEphemeral(a);
//Console.WriteLine("A = " + NetUtility.ToHexString(A));
byte[] b = NetSRP.CreateRandomEphemeral(); // NetUtility.ToByteArray("cc4d87a90db91067d52e2778b802ca6f7d362490c4be294b21b4a57c71cf55a9");
byte[] B = NetSRP.ComputeServerEphemeral(b, v);
//Console.WriteLine("B = " + NetUtility.ToHexString(B));
byte[] u = NetSRP.ComputeU(A, B);
//Console.WriteLine("u = " + NetUtility.ToHexString(u));
byte[] Ss = NetSRP.ComputeServerSessionValue(A, v, u, b);
//Console.WriteLine("Ss = " + NetUtility.ToHexString(Ss));
byte[] Sc = NetSRP.ComputeClientSessionValue(B, x, u, a);
//Console.WriteLine("Sc = " + NetUtility.ToHexString(Sc));
if (Ss.Length != Sc.Length)
{
throw new NetException("SRP non matching lengths!");
}
for (int j = 0; j < Ss.Length; j++)
{
if (Ss[j] != Sc[j])
{
throw new NetException("SRP non matching session values!");
}
}
var test = NetSRP.CreateEncryption(Ss);
}
Console.WriteLine("Message encryption OK");
}
public static void Run(NetPeer peer)
{
NetOutgoingMessage msg = peer.CreateMessage();
msg.Write(false);
msg.Write(-3, 6);
msg.Write(42);
msg.Write("duke of earl");
msg.Write((byte)43);
msg.Write((ushort)44);
msg.Write(true);
msg.WritePadBits();
int bcnt = 0;
msg.Write(45.0f);
msg.Write(46.0);
bcnt += msg.WriteVariableInt32(-47);
msg.WriteVariableInt32(470000);
msg.WriteVariableUInt32(48);
bcnt += msg.WriteVariableInt64(-49);
if (bcnt != 2)
{
throw new NetException("WriteVariable* wrote too many bytes!");
}
byte[] data = msg.PeekDataBuffer();
NetIncomingMessage inc = Program.CreateIncomingMessage(data, msg.LengthBits);
StringBuilder bdr = new StringBuilder();
bdr.Append(inc.ReadBoolean());
bdr.Append(inc.ReadInt32(6));
bdr.Append(inc.ReadInt32());
bdr.Append(inc.ReadString());
bdr.Append(inc.ReadByte());
if (inc.PeekUInt16() != (ushort)44)
{
throw new NetException("Read/write failure");
}
bdr.Append(inc.ReadUInt16());
bdr.Append(inc.ReadBoolean());
inc.SkipPadBits();
bdr.Append(inc.ReadSingle());
bdr.Append(inc.ReadDouble());
bdr.Append(inc.ReadVariableInt32());
bdr.Append(inc.ReadVariableInt32());
bdr.Append(inc.ReadVariableUInt32());
bdr.Append(inc.ReadVariableInt64());
if (bdr.ToString().Equals("False-342duke of earl4344True4546-4747000048-49"))
{
Console.WriteLine("Read/write tests OK");
}
else
{
throw new NetException("Read/write tests FAILED!");
}
msg = peer.CreateMessage();
NetOutgoingMessage tmp = peer.CreateMessage();
tmp.Write((int)42, 14);
msg.Write(tmp);
msg.Write(tmp);
if (msg.LengthBits != tmp.LengthBits * 2)
{
throw new NetException("NetOutgoingMessage.Write(NetOutgoingMessage) failed!");
}
tmp = peer.CreateMessage();
Test test = new Test();
test.Number = 42;
test.Name = "Hallon";
test.Age = 8.2f;
tmp.WriteAllFields(test, BindingFlags.Public | BindingFlags.Instance);
data = tmp.PeekDataBuffer();
inc = Program.CreateIncomingMessage(data, tmp.LengthBits);
Test readTest = new Test();
inc.ReadAllFields(readTest, BindingFlags.Public | BindingFlags.Instance);
NetException.Assert(readTest.Number == 42);
NetException.Assert(readTest.Name == "Hallon");
NetException.Assert(readTest.Age == 8.2f);
// test aligned WriteBytes/ReadBytes
msg = peer.CreateMessage();
byte[] tmparr = new byte[] { 5, 6, 7, 8, 9 };
msg.Write(tmparr);
inc = Program.CreateIncomingMessage(msg.PeekDataBuffer(), msg.LengthBits);
byte[] result = inc.ReadBytes(tmparr.Length);
for (int i = 0; i < tmparr.Length; i++)
{
if (tmparr[i] != result[i])
{
throw new Exception("readbytes fail");
}
}
}
public static void Run(NetPeer peer)
{
//
// Test XTEA
//
NetXtea xtea = new NetXtea("TopSecret");
byte[] original = new byte[16];
NetRandom.Instance.NextBytes(original);
byte[] encrypted = new byte[original.Length];
xtea.EncryptBlock(original, 0, encrypted, 0);
xtea.EncryptBlock(original, 8, encrypted, 8);
byte[] decrypted = new byte[original.Length];
xtea.DecryptBlock(encrypted, 0, decrypted, 0);
xtea.DecryptBlock(encrypted, 8, decrypted, 8);
// compare!
for (int i = 0; i < original.Length; i++)
{
if (original[i] != decrypted[i])
{
throw new NetException("XTEA fail!");
}
}
Console.WriteLine("XTEA OK");
NetOutgoingMessage om = peer.CreateMessage();
om.Write("Hallon");
om.Write(42);
om.Write(5, 5);
om.Write(true);
om.Write("kokos");
om.Encrypt(xtea);
// convert to incoming message
NetIncomingMessage im = Program.CreateIncomingMessage(om.PeekDataBuffer(), om.LengthBits);
im.Decrypt(xtea);
if (im.ReadString() != "Hallon")
{
throw new NetException("fail");
}
if (im.ReadInt32() != 42)
{
throw new NetException("fail");
}
if (im.ReadInt32(5) != 5)
{
throw new NetException("fail");
}
if (im.ReadBoolean() != true)
{
throw new NetException("fail");
}
if (im.ReadString() != "kokos")
{
throw new NetException("fail");
}
for (int i = 0; i < 100; i++)
{
byte[] salt = NetSRP.CreateRandomSalt();
byte[] x = NetSRP.ComputePrivateKey("user", "password", salt);
byte[] v = NetSRP.ComputeServerVerifier(x);
//Console.WriteLine("v = " + NetUtility.ToHexString(v));
byte[] a = NetSRP.CreateRandomEphemeral(); // NetUtility.ToByteArray("393ed364924a71ba7258633cc4854d655ca4ec4e8ba833eceaad2511e80db2b5");
byte[] A = NetSRP.ComputeClientEphemeral(a);
//Console.WriteLine("A = " + NetUtility.ToHexString(A));
byte[] b = NetSRP.CreateRandomEphemeral(); // NetUtility.ToByteArray("cc4d87a90db91067d52e2778b802ca6f7d362490c4be294b21b4a57c71cf55a9");
byte[] B = NetSRP.ComputeServerEphemeral(b, v);
//Console.WriteLine("B = " + NetUtility.ToHexString(B));
byte[] u = NetSRP.ComputeU(A, B);
//Console.WriteLine("u = " + NetUtility.ToHexString(u));
byte[] Ss = NetSRP.ComputeServerSessionValue(A, v, u, b);
//Console.WriteLine("Ss = " + NetUtility.ToHexString(Ss));
byte[] Sc = NetSRP.ComputeClientSessionValue(B, x, u, a);
//Console.WriteLine("Sc = " + NetUtility.ToHexString(Sc));
if (Ss.Length != Sc.Length)
{
throw new NetException("SRP non matching lengths!");
}
for (int j = 0; j < Ss.Length; j++)
{
if (Ss[j] != Sc[j])
{
throw new NetException("SRP non matching session values!");
}
}
var test = NetSRP.CreateEncryption(Ss);
}
Console.WriteLine("Message encryption OK");
}
